Mercurial > hg > forks > geeqie
annotate src/pixbuf_util.c @ 2916:ae6cdcd69d9f default tip
Merge with upstream/master.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Tue, 14 May 2019 11:46:50 +0300 |
| parents | b20a96b979a3 |
| children |
| rev | line source |
|---|---|
| 9 | 1 /* |
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2 * Copyright (C) 2004 John Ellis |
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3 * Copyright (C) 2008 - 2016 The Geeqie Team |
| 9 | 4 * |
| 5 * Author: John Ellis | |
| 6 * | |
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7 * This program is free software; you can redistribute it and/or modify |
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8 * it under the terms of the GNU General Public License as published by |
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9 * the Free Software Foundation; either version 2 of the License, or |
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10 * (at your option) any later version. |
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11 * |
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12 * This program is distributed in the hope that it will be useful, |
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13 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 * GNU General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU General Public License along |
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18 * with this program; if not, write to the Free Software Foundation, Inc., |
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 9 | 20 */ |
| 21 | |
| 281 | 22 #include "main.h" |
| 9 | 23 #include "pixbuf_util.h" |
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24 #include "exif.h" |
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25 #include "ui_fileops.h" |
| 9 | 26 |
| 27 #include "icons/icons_inline.h" | |
| 28 | |
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29 #include <math.h> |
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30 |
| 9 | 31 |
| 32 /* | |
| 33 *----------------------------------------------------------------------------- | |
| 34 * png save | |
| 35 *----------------------------------------------------------------------------- | |
| 36 */ | |
| 37 | |
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38 gboolean pixbuf_to_file_as_png(GdkPixbuf *pixbuf, const gchar *filename) |
| 9 | 39 { |
| 40 GError *error = NULL; | |
| 1443 | 41 gboolean ret; |
| 9 | 42 |
| 43 if (!pixbuf || !filename) return FALSE; | |
| 44 | |
| 45 ret = gdk_pixbuf_save(pixbuf, filename, "png", &error, | |
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46 "tEXt::Software", GQ_APPNAME " " VERSION, NULL); |
| 9 | 47 |
| 48 if (error) | |
| 49 { | |
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50 log_printf("Error saving png file: %s\n", error->message); |
| 9 | 51 g_error_free(error); |
| 52 } | |
| 53 | |
| 54 return ret; | |
| 55 } | |
| 56 | |
| 57 /* | |
| 58 *----------------------------------------------------------------------------- | |
| 59 * jpeg save | |
| 60 *----------------------------------------------------------------------------- | |
| 61 */ | |
| 62 | |
| 63 gboolean pixbuf_to_file_as_jpg(GdkPixbuf *pixbuf, const gchar *filename, gint quality) | |
| 64 { | |
| 65 GError *error = NULL; | |
| 66 gchar *qbuf; | |
| 67 gboolean ret; | |
| 68 | |
| 69 if (!pixbuf || !filename) return FALSE; | |
| 70 | |
| 71 if (quality == -1) quality = 75; | |
| 72 if (quality < 1 || quality > 100) | |
| 73 { | |
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74 log_printf("Jpeg not saved, invalid quality %d\n", quality); |
| 9 | 75 return FALSE; |
| 76 } | |
| 77 | |
| 78 qbuf = g_strdup_printf("%d", quality); | |
| 79 ret = gdk_pixbuf_save(pixbuf, filename, "jpeg", &error, "quality", qbuf, NULL); | |
| 80 g_free(qbuf); | |
| 81 | |
| 82 if (error) | |
| 83 { | |
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84 log_printf("Error saving jpeg to %s\n%s\n", filename, error->message); |
| 9 | 85 g_error_free(error); |
| 86 } | |
| 87 | |
| 88 return ret; | |
| 89 } | |
| 90 | |
| 91 /* | |
| 92 *----------------------------------------------------------------------------- | |
| 93 * pixbuf from inline | |
| 94 *----------------------------------------------------------------------------- | |
| 95 */ | |
| 96 | |
| 97 typedef struct _PixbufInline PixbufInline; | |
| 98 struct _PixbufInline | |
| 99 { | |
| 100 const gchar *key; | |
| 101 const guint8 *data; | |
| 102 }; | |
| 103 | |
| 104 static PixbufInline inline_pixbuf_data[] = { | |
| 105 { PIXBUF_INLINE_FOLDER_CLOSED, folder_closed }, | |
| 106 { PIXBUF_INLINE_FOLDER_LOCKED, folder_locked }, | |
| 107 { PIXBUF_INLINE_FOLDER_OPEN, folder_open }, | |
| 108 { PIXBUF_INLINE_FOLDER_UP, folder_up }, | |
| 109 { PIXBUF_INLINE_SCROLLER, icon_scroller }, | |
| 110 { PIXBUF_INLINE_BROKEN, icon_broken }, | |
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111 { PIXBUF_INLINE_METADATA, icon_metadata }, |
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112 { PIXBUF_INLINE_UNKNOWN, icon_unknown }, |
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113 { PIXBUF_INLINE_VIDEO, icon_video }, |
| 2793 | 114 { PIXBUF_INLINE_COLLECTION, icon_collection }, |
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115 { PIXBUF_INLINE_ICON, gqview_icon }, |
| 198 | 116 { PIXBUF_INLINE_LOGO, geeqie_logo }, |
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117 { PIXBUF_INLINE_ICON_FLOAT, icon_float }, |
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118 { PIXBUF_INLINE_ICON_THUMB, icon_thumb }, |
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119 { PIXBUF_INLINE_ICON_BOOK, icon_book }, |
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120 { PIXBUF_INLINE_ICON_CONFIG, icon_config }, |
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121 { PIXBUF_INLINE_ICON_TOOLS, icon_tools }, |
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122 { PIXBUF_INLINE_ICON_VIEW, icon_view }, |
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123 { PIXBUF_INLINE_ICON_GUIDELINES, icon_guidelines }, |
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124 { PIXBUF_INLINE_ICON_PANORAMA, icon_panorama }, |
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125 { PIXBUF_INLINE_ICON_MAINTENANCE, icon_maintenance }, |
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126 { PIXBUF_INLINE_ICON_ZOOMFILLHOR, icon_zoomfillhor }, |
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127 { PIXBUF_INLINE_ICON_ZOOMFILLVERT, icon_zoomfillvert }, |
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128 { PIXBUF_INLINE_ICON_HIDETOOLS, icon_hidetools }, |
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129 { PIXBUF_INLINE_ICON_EXIF, icon_exif }, |
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130 { PIXBUF_INLINE_ICON_MARKS, icon_marks }, |
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131 { PIXBUF_INLINE_ICON_INFO, icon_info }, |
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132 { PIXBUF_INLINE_ICON_SORT, icon_sort }, |
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133 { PIXBUF_INLINE_ICON_PDF, icon_pdf }, |
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134 { PIXBUF_INLINE_ICON_DRAW_RECTANGLE, icon_draw_rectangle }, |
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135 { PIXBUF_INLINE_ICON_MOVE, icon_move }, |
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136 { PIXBUF_INLINE_ICON_RENAME, icon_rename }, |
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137 { PIXBUF_INLINE_ICON_SELECT_ALL, icon_select_all }, |
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138 { PIXBUF_INLINE_ICON_SELECT_NONE, icon_select_none }, |
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139 { PIXBUF_INLINE_ICON_SELECT_INVERT, icon_select_invert }, |
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140 { PIXBUF_INLINE_ICON_SELECT_RECTANGLE, icon_select_rectangle }, |
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141 { PIXBUF_INLINE_ICON_FILE_FILTER, icon_file_filter }, |
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142 { PIXBUF_INLINE_ICON_CW, icon_rotate_clockwise }, |
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143 { PIXBUF_INLINE_ICON_CCW, icon_rotate_counter_clockwise }, |
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144 { PIXBUF_INLINE_ICON_180, icon_rotate_180 }, |
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145 { PIXBUF_INLINE_ICON_MIRROR, icon_mirror }, |
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146 { PIXBUF_INLINE_ICON_FLIP, icon_flip }, |
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147 { PIXBUF_INLINE_ICON_ORIGINAL, icon_original }, |
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148 { PIXBUF_INLINE_ICON_TRASH, icon_trash }, |
| 9 | 149 { NULL, NULL } |
| 150 }; | |
| 151 | |
| 152 GdkPixbuf *pixbuf_inline(const gchar *key) | |
| 153 { | |
| 154 gint i; | |
| 155 | |
| 156 if (!key) return NULL; | |
| 157 | |
| 158 i = 0; | |
| 159 while (inline_pixbuf_data[i].key) | |
| 160 { | |
| 161 if (strcmp(inline_pixbuf_data[i].key, key) == 0) | |
| 162 { | |
| 163 return gdk_pixbuf_new_from_inline(-1, inline_pixbuf_data[i].data, FALSE, NULL); | |
| 164 } | |
| 165 i++; | |
| 166 } | |
| 167 | |
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168 log_printf("warning: inline pixbuf key \"%s\" not found.\n", key); |
| 9 | 169 |
| 170 return NULL; | |
| 171 } | |
| 172 | |
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173 static void register_stock_icon(const gchar *key, GdkPixbuf *pixbuf) |
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174 { |
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175 static GtkIconFactory *icon_factory = NULL; |
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176 GtkIconSet *icon_set; |
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177 |
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178 if (!icon_factory) |
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179 { |
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180 icon_factory = gtk_icon_factory_new(); |
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181 gtk_icon_factory_add_default(icon_factory); |
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182 } |
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183 |
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184 icon_set = gtk_icon_set_new_from_pixbuf(pixbuf); |
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185 gtk_icon_factory_add(icon_factory, key, icon_set); |
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186 } |
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187 |
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188 |
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189 void pixbuf_inline_register_stock_icons(void) |
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190 { |
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191 gint i; |
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192 |
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193 i = 0; |
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194 while (inline_pixbuf_data[i].key) |
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195 { |
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196 register_stock_icon(inline_pixbuf_data[i].key, pixbuf_inline(inline_pixbuf_data[i].key)); |
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197 i++; |
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198 } |
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199 } |
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200 |
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201 gboolean register_theme_icon_as_stock(const gchar *key, const gchar *icon) |
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202 { |
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203 GtkIconTheme *icon_theme; |
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204 GdkPixbuf *pixbuf; |
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205 GError *error = NULL; |
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206 |
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207 icon_theme = gtk_icon_theme_get_default(); |
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208 |
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209 if (gtk_icon_theme_has_icon(icon_theme, key)) return FALSE; |
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210 |
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211 pixbuf = gtk_icon_theme_load_icon(icon_theme, |
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212 icon, /* icon name */ |
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213 64, /* size */ |
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214 0, /* flags */ |
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215 &error); |
| 2184 | 216 if (!pixbuf) |
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217 { |
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218 if (error) |
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219 { |
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220 DEBUG_1("Couldn't load icon %s: %s", icon, error->message); |
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221 g_error_free(error); |
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222 error = NULL; |
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223 } |
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224 |
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225 if (strchr(icon, '.')) |
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226 { |
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227 /* try again without extension */ |
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228 gchar *icon2 = remove_extension_from_path(icon); |
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229 pixbuf = gtk_icon_theme_load_icon(icon_theme, |
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230 icon2, /* icon name */ |
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231 64, /* size */ |
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232 0, /* flags */ |
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233 &error); |
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234 if (error) |
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235 { |
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236 DEBUG_1("Couldn't load icon %s: %s", icon2, error->message); |
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237 g_error_free(error); |
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238 error = NULL; |
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239 |
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240 /* try as an absolute path */ |
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241 pixbuf = gdk_pixbuf_new_from_file(icon, &error); |
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242 if (error) |
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243 { |
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244 DEBUG_1("Couldn't load icon as absolute path %s: %s", icon, error->message); |
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245 g_error_free(error); |
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246 } |
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247 } |
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248 g_free(icon2); |
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249 } |
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250 } |
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251 |
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252 if (!pixbuf) return FALSE; |
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253 |
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254 register_stock_icon(key, pixbuf); |
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255 return TRUE; |
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256 } |
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257 |
| 1443 | 258 gboolean pixbuf_scale_aspect(gint req_w, gint req_h, |
| 259 gint old_w, gint old_h, | |
| 260 gint *new_w, gint *new_h) | |
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261 { |
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262 if (((gdouble)req_w / old_w) < ((gdouble)req_h / old_h)) |
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263 { |
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264 *new_w = req_w; |
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265 *new_h = (gdouble)*new_w / old_w * old_h; |
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266 if (*new_h < 1) *new_h = 1; |
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267 } |
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268 else |
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269 { |
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270 *new_h = req_h; |
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271 *new_w = (gdouble)*new_h / old_h * old_w; |
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272 if (*new_w < 1) *new_w = 1; |
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273 } |
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274 |
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275 return (*new_w != old_w || *new_h != old_h); |
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276 } |
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277 |
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278 GdkPixbuf *pixbuf_fallback(FileData *fd, gint requested_width, gint requested_height) |
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279 { |
|
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280 GdkPixbuf *pixbuf; |
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281 |
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282 switch (fd->format_class) |
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283 { |
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284 case FORMAT_CLASS_UNKNOWN: |
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285 pixbuf = pixbuf_inline(PIXBUF_INLINE_UNKNOWN); |
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286 break; |
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287 case FORMAT_CLASS_META: |
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288 pixbuf = pixbuf_inline(PIXBUF_INLINE_METADATA); |
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289 break; |
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290 case FORMAT_CLASS_VIDEO: |
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291 pixbuf = pixbuf_inline(PIXBUF_INLINE_VIDEO); |
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292 break; |
| 2793 | 293 case FORMAT_CLASS_COLLECTION: |
| 294 pixbuf = pixbuf_inline(PIXBUF_INLINE_COLLECTION); | |
| 295 break; | |
|
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296 case FORMAT_CLASS_PDF: |
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297 pixbuf = pixbuf_inline(PIXBUF_INLINE_ICON_PDF); |
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298 break; |
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299 default: |
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300 pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN); |
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301 } |
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302 |
|
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303 if (requested_width && requested_height) |
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304 { |
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305 gint w = gdk_pixbuf_get_width(pixbuf); |
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306 gint h = gdk_pixbuf_get_height(pixbuf); |
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307 |
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308 if (w > requested_width || h > requested_height) |
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309 { |
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310 gint nw, nh; |
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311 |
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312 if (pixbuf_scale_aspect(requested_width, requested_height, |
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313 w, h, &nw, &nh)) |
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314 { |
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315 GdkPixbuf *tmp; |
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316 |
|
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317 tmp = pixbuf; |
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318 pixbuf = gdk_pixbuf_scale_simple(tmp, nw, nh, GDK_INTERP_TILES); |
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319 g_object_unref(G_OBJECT(tmp)); |
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320 } |
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321 } |
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322 } |
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323 return pixbuf; |
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324 } |
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325 |
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|
326 |
| 9 | 327 /* |
| 328 *----------------------------------------------------------------------------- | |
|
33
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|
329 * misc utils |
|
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330 *----------------------------------------------------------------------------- |
|
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331 */ |
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332 |
| 1443 | 333 gboolean util_clip_region(gint x, gint y, gint w, gint h, |
| 334 gint clip_x, gint clip_y, gint clip_w, gint clip_h, | |
| 335 gint *rx, gint *ry, gint *rw, gint *rh) | |
|
33
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336 { |
|
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337 if (clip_x + clip_w <= x || |
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338 clip_x >= x + w || |
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339 clip_y + clip_h <= y || |
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340 clip_y >= y + h) |
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341 { |
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342 return FALSE; |
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343 } |
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344 |
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345 *rx = MAX(x, clip_x); |
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346 *rw = MIN((x + w), (clip_x + clip_w)) - *rx; |
|
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347 |
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348 *ry = MAX(y, clip_y); |
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349 *rh = MIN((y + h), (clip_y + clip_h)) - *ry; |
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350 |
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351 return TRUE; |
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352 } |
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353 |
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354 /* |
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|
355 *----------------------------------------------------------------------------- |
| 9 | 356 * pixbuf rotation |
| 357 *----------------------------------------------------------------------------- | |
| 358 */ | |
| 359 | |
| 360 static void pixbuf_copy_block_rotate(guchar *src, gint src_row_stride, gint x, gint y, | |
| 361 guchar *dest, gint dest_row_stride, gint w, gint h, | |
| 1443 | 362 gint bytes_per_pixel, gboolean counter_clockwise) |
| 9 | 363 { |
| 364 gint i, j; | |
| 365 guchar *sp; | |
| 366 guchar *dp; | |
| 367 | |
| 368 for (i = 0; i < h; i++) | |
| 369 { | |
| 370 sp = src + ((i + y) * src_row_stride) + (x * bytes_per_pixel); | |
| 371 for (j = 0; j < w; j++) | |
| 372 { | |
| 373 if (counter_clockwise) | |
| 374 { | |
| 375 dp = dest + ((w - j - 1) * dest_row_stride) + (i * bytes_per_pixel); | |
| 376 } | |
| 377 else | |
| 378 { | |
| 379 dp = dest + (j * dest_row_stride) + ((h - i - 1) * bytes_per_pixel); | |
| 380 } | |
| 381 *(dp++) = *(sp++); /* r */ | |
| 382 *(dp++) = *(sp++); /* g */ | |
| 383 *(dp++) = *(sp++); /* b */ | |
| 384 if (bytes_per_pixel == 4) *(dp) = *(sp++); /* a */ | |
| 385 } | |
| 386 } | |
| 442 | 387 |
| 9 | 388 } |
| 389 | |
| 390 static void pixbuf_copy_block(guchar *src, gint src_row_stride, gint w, gint h, | |
| 391 guchar *dest, gint dest_row_stride, gint x, gint y, gint bytes_per_pixel) | |
| 392 { | |
| 393 gint i; | |
| 394 guchar *sp; | |
| 395 guchar *dp; | |
| 396 | |
| 397 for (i = 0; i < h; i++) | |
| 398 { | |
| 399 sp = src + (i * src_row_stride); | |
| 400 dp = dest + ((y + i) * dest_row_stride) + (x * bytes_per_pixel); | |
| 401 memcpy(dp, sp, w * bytes_per_pixel); | |
| 402 } | |
| 403 } | |
| 404 | |
| 405 #define ROTATE_BUFFER_WIDTH 48 | |
| 406 #define ROTATE_BUFFER_HEIGHT 48 | |
| 407 | |
| 408 /* | |
| 409 * Returns a copy of pixbuf src rotated 90 degrees clockwise or 90 counterclockwise | |
| 410 * | |
| 411 */ | |
| 1443 | 412 GdkPixbuf *pixbuf_copy_rotate_90(GdkPixbuf *src, gboolean counter_clockwise) |
| 9 | 413 { |
| 414 GdkPixbuf *dest; | |
| 1443 | 415 gboolean has_alpha; |
| 9 | 416 gint sw, sh, srs; |
| 417 gint dw, dh, drs; | |
| 418 guchar *s_pix; | |
| 442 | 419 guchar *d_pix; |
| 9 | 420 gint i, j; |
| 421 gint a; | |
| 422 GdkPixbuf *buffer; | |
| 442 | 423 guchar *b_pix; |
| 9 | 424 gint brs; |
| 425 gint w, h; | |
| 426 | |
| 427 if (!src) return NULL; | |
| 428 | |
| 429 sw = gdk_pixbuf_get_width(src); | |
| 430 sh = gdk_pixbuf_get_height(src); | |
| 431 has_alpha = gdk_pixbuf_get_has_alpha(src); | |
| 432 srs = gdk_pixbuf_get_rowstride(src); | |
| 433 s_pix = gdk_pixbuf_get_pixels(src); | |
| 434 | |
| 435 dw = sh; | |
| 436 dh = sw; | |
| 437 dest = gdk_pixbuf_new(GDK_COLORSPACE_RGB, has_alpha, 8, dw, dh); | |
| 438 drs = gdk_pixbuf_get_rowstride(dest); | |
| 439 d_pix = gdk_pixbuf_get_pixels(dest); | |
| 440 | |
| 441 a = (has_alpha ? 4 : 3); | |
| 442 | |
| 443 buffer = gdk_pixbuf_new(GDK_COLORSPACE_RGB, has_alpha, 8, | |
| 444 ROTATE_BUFFER_WIDTH, ROTATE_BUFFER_HEIGHT); | |
| 445 b_pix = gdk_pixbuf_get_pixels(buffer); | |
| 446 brs = gdk_pixbuf_get_rowstride(buffer); | |
| 447 | |
| 448 for (i = 0; i < sh; i+= ROTATE_BUFFER_WIDTH) | |
| 449 { | |
| 450 w = MIN(ROTATE_BUFFER_WIDTH, (sh - i)); | |
| 451 for (j = 0; j < sw; j += ROTATE_BUFFER_HEIGHT) | |
| 452 { | |
| 453 gint x, y; | |
| 454 | |
| 455 h = MIN(ROTATE_BUFFER_HEIGHT, (sw - j)); | |
| 456 pixbuf_copy_block_rotate(s_pix, srs, j, i, | |
| 457 b_pix, brs, h, w, | |
| 458 a, counter_clockwise); | |
| 459 | |
| 460 if (counter_clockwise) | |
| 461 { | |
| 462 x = i; | |
| 463 y = sw - h - j; | |
| 464 } | |
| 465 else | |
| 466 { | |
| 467 x = sh - w - i; | |
| 468 y = j; | |
| 469 } | |
| 470 pixbuf_copy_block(b_pix, brs, w, h, | |
| 471 d_pix, drs, x, y, a); | |
| 472 } | |
| 473 } | |
| 474 | |
|
1043
718ab8111f48
Replaced gtk depreceated code.
Petr Ostadal <postadal@suse.cz>
parents:
1001
diff
changeset
|
475 g_object_unref(buffer); |
| 9 | 476 |
| 477 #if 0 | |
| 478 /* this is the simple version of rotation (roughly 2-4x slower) */ | |
| 479 | |
| 480 for (i = 0; i < sh; i++) | |
| 481 { | |
| 482 sp = s_pix + (i * srs); | |
| 483 for (j = 0; j < sw; j++) | |
| 484 { | |
| 485 if (counter_clockwise) | |
| 486 { | |
| 487 dp = d_pix + ((dh - j - 1) * drs) + (i * a); | |
| 488 } | |
| 489 else | |
| 490 { | |
| 491 dp = d_pix + (j * drs) + ((dw - i - 1) * a); | |
| 492 } | |
| 493 | |
| 494 *(dp++) = *(sp++); /* r */ | |
| 495 *(dp++) = *(sp++); /* g */ | |
| 496 *(dp++) = *(sp++); /* b */ | |
| 497 if (has_alpha) *(dp) = *(sp++); /* a */ | |
| 498 } | |
| 499 } | |
| 500 #endif | |
| 501 | |
| 502 return dest; | |
| 503 } | |
| 504 | |
| 505 /* | |
| 506 * Returns a copy of pixbuf mirrored and or flipped. | |
| 507 * TO do a 180 degree rotations set both mirror and flipped TRUE | |
| 508 * if mirror and flip are FALSE, result is a simple copy. | |
| 509 */ | |
| 1443 | 510 GdkPixbuf *pixbuf_copy_mirror(GdkPixbuf *src, gboolean mirror, gboolean flip) |
| 9 | 511 { |
| 512 GdkPixbuf *dest; | |
| 1443 | 513 gboolean has_alpha; |
| 9 | 514 gint w, h, srs; |
| 515 gint drs; | |
| 516 guchar *s_pix; | |
| 442 | 517 guchar *d_pix; |
| 9 | 518 guchar *sp; |
| 442 | 519 guchar *dp; |
| 9 | 520 gint i, j; |
| 521 gint a; | |
| 522 | |
| 523 if (!src) return NULL; | |
| 524 | |
| 525 w = gdk_pixbuf_get_width(src); | |
| 526 h = gdk_pixbuf_get_height(src); | |
| 527 has_alpha = gdk_pixbuf_get_has_alpha(src); | |
| 528 srs = gdk_pixbuf_get_rowstride(src); | |
| 529 s_pix = gdk_pixbuf_get_pixels(src); | |
| 530 | |
| 531 dest = gdk_pixbuf_new(GDK_COLORSPACE_RGB, has_alpha, 8, w, h); | |
| 532 drs = gdk_pixbuf_get_rowstride(dest); | |
| 533 d_pix = gdk_pixbuf_get_pixels(dest); | |
| 534 | |
| 535 a = has_alpha ? 4 : 3; | |
| 536 | |
| 537 for (i = 0; i < h; i++) | |
| 538 { | |
| 539 sp = s_pix + (i * srs); | |
| 540 if (flip) | |
| 541 { | |
| 542 dp = d_pix + ((h - i - 1) * drs); | |
| 543 } | |
| 544 else | |
| 545 { | |
| 546 dp = d_pix + (i * drs); | |
| 547 } | |
| 548 if (mirror) | |
| 549 { | |
| 550 dp += (w - 1) * a; | |
| 551 for (j = 0; j < w; j++) | |
| 552 { | |
| 553 *(dp++) = *(sp++); /* r */ | |
| 554 *(dp++) = *(sp++); /* g */ | |
| 555 *(dp++) = *(sp++); /* b */ | |
| 556 if (has_alpha) *(dp) = *(sp++); /* a */ | |
| 557 dp -= (a + 3); | |
| 558 } | |
| 559 } | |
| 560 else | |
| 561 { | |
| 562 for (j = 0; j < w; j++) | |
| 563 { | |
| 564 *(dp++) = *(sp++); /* r */ | |
| 565 *(dp++) = *(sp++); /* g */ | |
| 566 *(dp++) = *(sp++); /* b */ | |
| 567 if (has_alpha) *(dp++) = *(sp++); /* a */ | |
| 568 } | |
| 569 } | |
| 570 } | |
| 571 | |
| 572 return dest; | |
| 573 } | |
| 574 | |
|
1001
a1f0b2010ca1
Consistency: type * instead of type*.
Laurent Monin <geeqie@norz.org>
parents:
1000
diff
changeset
|
575 GdkPixbuf *pixbuf_apply_orientation(GdkPixbuf *pixbuf, gint orientation) |
|
839
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rotate thumbnails by exif
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diff
changeset
|
576 { |
|
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diff
changeset
|
577 GdkPixbuf *dest; |
|
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|
578 GdkPixbuf *tmp = NULL; |
|
2185
c14a1d8e6aa4
Trim trailing white spaces on empty lines.
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parents:
2184
diff
changeset
|
579 |
|
839
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diff
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|
580 switch (orientation) |
|
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diff
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|
581 { |
|
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diff
changeset
|
582 case EXIF_ORIENTATION_TOP_LEFT: |
|
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parents:
673
diff
changeset
|
583 dest = gdk_pixbuf_copy(pixbuf); |
|
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diff
changeset
|
584 break; |
|
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|
585 case EXIF_ORIENTATION_TOP_RIGHT: |
|
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diff
changeset
|
586 /* mirrored */ |
|
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diff
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|
587 dest = pixbuf_copy_mirror(pixbuf, TRUE, FALSE); |
|
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|
588 break; |
|
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|
589 case EXIF_ORIENTATION_BOTTOM_RIGHT: |
|
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diff
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|
590 /* upside down */ |
|
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diff
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|
591 dest = pixbuf_copy_mirror(pixbuf, TRUE, TRUE); |
|
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|
592 break; |
|
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changeset
|
593 case EXIF_ORIENTATION_BOTTOM_LEFT: |
|
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diff
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|
594 /* flipped */ |
|
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diff
changeset
|
595 dest = pixbuf_copy_mirror(pixbuf, FALSE, TRUE); |
|
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|
596 break; |
|
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|
597 case EXIF_ORIENTATION_LEFT_TOP: |
|
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diff
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|
598 tmp = pixbuf_copy_mirror(pixbuf, FALSE, TRUE); |
|
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diff
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|
599 dest = pixbuf_copy_rotate_90(tmp, FALSE); |
|
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|
600 break; |
|
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diff
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|
601 case EXIF_ORIENTATION_RIGHT_TOP: |
|
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673
diff
changeset
|
602 /* rotated -90 (270) */ |
|
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673
diff
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|
603 dest = pixbuf_copy_rotate_90(pixbuf, FALSE); |
|
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diff
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|
604 break; |
|
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673
diff
changeset
|
605 case EXIF_ORIENTATION_RIGHT_BOTTOM: |
|
74af80c4c972
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diff
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|
606 tmp = pixbuf_copy_mirror(pixbuf, FALSE, TRUE); |
|
74af80c4c972
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673
diff
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|
607 dest = pixbuf_copy_rotate_90(tmp, TRUE); |
|
74af80c4c972
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608 break; |
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609 case EXIF_ORIENTATION_LEFT_BOTTOM: |
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610 /* rotated 90 */ |
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611 dest = pixbuf_copy_rotate_90(pixbuf, TRUE); |
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612 break; |
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613 default: |
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614 dest = gdk_pixbuf_copy(pixbuf); |
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615 break; |
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616 } |
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617 if (tmp) g_object_unref(tmp); |
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618 return dest; |
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619 |
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620 } |
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621 |
| 9 | 622 |
| 623 /* | |
| 624 *----------------------------------------------------------------------------- | |
|
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625 * pixbuf drawing (rectangles) |
| 9 | 626 *----------------------------------------------------------------------------- |
| 627 */ | |
| 628 | |
| 629 /* | |
| 630 * Fills region of pixbuf at x,y over w,h | |
| 631 * with colors red (r), green (g), blue (b) | |
| 632 * applying alpha (a), use a=255 for solid. | |
| 633 */ | |
| 634 void pixbuf_draw_rect_fill(GdkPixbuf *pb, | |
| 635 gint x, gint y, gint w, gint h, | |
| 636 gint r, gint g, gint b, gint a) | |
| 637 { | |
| 1443 | 638 gboolean has_alpha; |
| 9 | 639 gint pw, ph, prs; |
| 640 guchar *p_pix; | |
| 641 guchar *pp; | |
| 642 gint i, j; | |
| 643 | |
| 644 if (!pb) return; | |
| 645 | |
| 646 pw = gdk_pixbuf_get_width(pb); | |
| 647 ph = gdk_pixbuf_get_height(pb); | |
| 648 | |
| 649 if (x < 0 || x + w > pw) return; | |
| 650 if (y < 0 || y + h > ph) return; | |
| 651 | |
| 1443 | 652 has_alpha = gdk_pixbuf_get_has_alpha(pb); |
| 9 | 653 prs = gdk_pixbuf_get_rowstride(pb); |
| 654 p_pix = gdk_pixbuf_get_pixels(pb); | |
| 655 | |
| 442 | 656 for (i = 0; i < h; i++) |
| 9 | 657 { |
| 1443 | 658 pp = p_pix + (y + i) * prs + (x * (has_alpha ? 4 : 3)); |
| 9 | 659 for (j = 0; j < w; j++) |
| 660 { | |
| 661 *pp = (r * a + *pp * (256-a)) >> 8; | |
| 662 pp++; | |
| 663 *pp = (g * a + *pp * (256-a)) >> 8; | |
| 664 pp++; | |
| 665 *pp = (b * a + *pp * (256-a)) >> 8; | |
| 666 pp++; | |
| 1443 | 667 if (has_alpha) pp++; |
| 9 | 668 } |
| 669 } | |
| 670 } | |
| 671 | |
| 672 void pixbuf_draw_rect(GdkPixbuf *pb, | |
| 673 gint x, gint y, gint w, gint h, | |
| 674 gint r, gint g, gint b, gint a, | |
| 675 gint left, gint right, gint top, gint bottom) | |
| 676 { | |
| 677 pixbuf_draw_rect_fill(pb, x + left, y, w - left - right, top, | |
| 678 r, g, b ,a); | |
| 679 pixbuf_draw_rect_fill(pb, x + w - right, y, right, h, | |
| 680 r, g, b ,a); | |
| 681 pixbuf_draw_rect_fill(pb, x + left, y + h - bottom, w - left - right, bottom, | |
| 682 r, g, b ,a); | |
| 683 pixbuf_draw_rect_fill(pb, x, y, left, h, | |
| 684 r, g, b ,a); | |
| 685 } | |
| 686 | |
| 687 void pixbuf_set_rect_fill(GdkPixbuf *pb, | |
| 688 gint x, gint y, gint w, gint h, | |
| 689 gint r, gint g, gint b, gint a) | |
| 690 { | |
| 1443 | 691 gboolean has_alpha; |
| 9 | 692 gint pw, ph, prs; |
| 693 guchar *p_pix; | |
| 694 guchar *pp; | |
| 695 gint i, j; | |
| 696 | |
| 697 if (!pb) return; | |
| 698 | |
| 699 pw = gdk_pixbuf_get_width(pb); | |
| 700 ph = gdk_pixbuf_get_height(pb); | |
| 701 | |
| 702 if (x < 0 || x + w > pw) return; | |
| 703 if (y < 0 || y + h > ph) return; | |
| 704 | |
| 1443 | 705 has_alpha = gdk_pixbuf_get_has_alpha(pb); |
| 9 | 706 prs = gdk_pixbuf_get_rowstride(pb); |
| 707 p_pix = gdk_pixbuf_get_pixels(pb); | |
| 708 | |
| 442 | 709 for (i = 0; i < h; i++) |
| 9 | 710 { |
| 1443 | 711 pp = p_pix + (y + i) * prs + (x * (has_alpha ? 4 : 3)); |
| 9 | 712 for (j = 0; j < w; j++) |
| 713 { | |
| 714 *pp = r; pp++; | |
| 715 *pp = g; pp++; | |
| 716 *pp = b; pp++; | |
| 1443 | 717 if (has_alpha) { *pp = a; pp++; } |
| 9 | 718 } |
| 719 } | |
| 720 } | |
| 721 | |
| 722 void pixbuf_set_rect(GdkPixbuf *pb, | |
| 723 gint x, gint y, gint w, gint h, | |
| 724 gint r, gint g, gint b, gint a, | |
| 725 gint left, gint right, gint top, gint bottom) | |
| 726 { | |
| 727 pixbuf_set_rect_fill(pb, x + left, y, w - left - right, top, | |
| 728 r, g, b ,a); | |
| 729 pixbuf_set_rect_fill(pb, x + w - right, y, right, h, | |
| 730 r, g, b ,a); | |
| 731 pixbuf_set_rect_fill(pb, x + left, y + h - bottom, w - left - right, bottom, | |
| 732 r, g, b ,a); | |
| 733 pixbuf_set_rect_fill(pb, x, y, left, h, | |
| 734 r, g, b ,a); | |
| 735 } | |
| 736 | |
| 737 void pixbuf_pixel_set(GdkPixbuf *pb, gint x, gint y, gint r, gint g, gint b, gint a) | |
| 738 { | |
| 739 guchar *buf; | |
| 1443 | 740 gboolean has_alpha; |
| 9 | 741 gint rowstride; |
| 742 guchar *p; | |
| 743 | |
| 744 if (x < 0 || x >= gdk_pixbuf_get_width(pb) || | |
| 442 | 745 y < 0 || y >= gdk_pixbuf_get_height(pb)) return; |
| 9 | 746 |
| 747 buf = gdk_pixbuf_get_pixels(pb); | |
| 748 has_alpha = gdk_pixbuf_get_has_alpha(pb); | |
| 749 rowstride = gdk_pixbuf_get_rowstride(pb); | |
| 750 | |
| 442 | 751 p = buf + (y * rowstride) + (x * (has_alpha ? 4 : 3)); |
| 9 | 752 *p = r; p++; |
| 753 *p = g; p++; | |
| 754 *p = b; p++; | |
| 755 if (has_alpha) *p = a; | |
| 756 } | |
| 757 | |
| 758 | |
| 759 /* | |
| 760 *----------------------------------------------------------------------------- | |
| 761 * pixbuf text rendering | |
| 762 *----------------------------------------------------------------------------- | |
| 763 */ | |
| 764 | |
| 765 static void pixbuf_copy_font(GdkPixbuf *src, gint sx, gint sy, | |
| 766 GdkPixbuf *dest, gint dx, gint dy, | |
| 767 gint w, gint h, | |
| 768 guint8 r, guint8 g, guint8 b, guint8 a) | |
| 769 { | |
| 770 gint sw, sh, srs; | |
| 1443 | 771 gboolean s_alpha; |
| 9 | 772 gint s_step; |
| 773 guchar *s_pix; | |
| 774 gint dw, dh, drs; | |
| 1443 | 775 gboolean d_alpha; |
| 9 | 776 gint d_step; |
| 777 guchar *d_pix; | |
| 778 | |
| 779 guchar *sp; | |
| 780 guchar *dp; | |
| 781 gint i, j; | |
| 782 | |
| 783 if (!src || !dest) return; | |
| 784 | |
| 785 sw = gdk_pixbuf_get_width(src); | |
| 786 sh = gdk_pixbuf_get_height(src); | |
| 787 | |
| 788 if (sx < 0 || sx + w > sw) return; | |
| 789 if (sy < 0 || sy + h > sh) return; | |
| 790 | |
| 791 dw = gdk_pixbuf_get_width(dest); | |
| 792 dh = gdk_pixbuf_get_height(dest); | |
| 793 | |
| 794 if (dx < 0 || dx + w > dw) return; | |
| 795 if (dy < 0 || dy + h > dh) return; | |
| 796 | |
| 797 s_alpha = gdk_pixbuf_get_has_alpha(src); | |
| 798 d_alpha = gdk_pixbuf_get_has_alpha(dest); | |
| 799 srs = gdk_pixbuf_get_rowstride(src); | |
| 800 drs = gdk_pixbuf_get_rowstride(dest); | |
| 801 s_pix = gdk_pixbuf_get_pixels(src); | |
| 802 d_pix = gdk_pixbuf_get_pixels(dest); | |
| 803 | |
| 804 s_step = (s_alpha) ? 4 : 3; | |
| 805 d_step = (d_alpha) ? 4 : 3; | |
| 806 | |
| 807 for (i = 0; i < h; i++) | |
| 808 { | |
| 809 sp = s_pix + (sy + i) * srs + sx * s_step; | |
| 810 dp = d_pix + (dy + i) * drs + dx * d_step; | |
| 811 for (j = 0; j < w; j++) | |
| 812 { | |
| 813 if (*sp) | |
| 814 { | |
| 815 guint8 asub; | |
| 816 | |
| 817 asub = a * sp[0] / 255; | |
| 818 *dp = (r * asub + *dp * (256-asub)) >> 8; | |
| 819 dp++; | |
| 820 asub = a * sp[1] / 255; | |
| 821 *dp = (g * asub + *dp * (256-asub)) >> 8; | |
| 822 dp++; | |
| 823 asub = a * sp[2] / 255; | |
| 824 *dp = (b * asub + *dp * (256-asub)) >> 8; | |
| 825 dp++; | |
| 826 | |
| 827 if (d_alpha) | |
| 828 { | |
| 829 *dp = MAX(*dp, a * ((sp[0] + sp[1] + sp[2]) / 3) / 255); | |
| 830 dp++; | |
| 831 } | |
| 832 } | |
| 833 else | |
| 834 { | |
| 835 dp += d_step; | |
| 836 } | |
| 837 | |
| 838 sp += s_step; | |
| 839 } | |
| 840 } | |
| 841 } | |
| 842 | |
| 843 void pixbuf_draw_layout(GdkPixbuf *pixbuf, PangoLayout *layout, GtkWidget *widget, | |
| 844 gint x, gint y, | |
| 845 guint8 r, guint8 g, guint8 b, guint8 a) | |
| 846 { | |
| 847 GdkPixbuf *buffer; | |
| 848 gint w, h; | |
| 849 gint sx, sy; | |
| 850 gint dw, dh; | |
|
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851 cairo_surface_t *source; |
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852 cairo_t *cr; |
| 9 | 853 |
| 854 pango_layout_get_pixel_size(layout, &w, &h); | |
|
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855 if (w < 1 || h < 1) return; |
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856 |
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857 source = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, w, h); |
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858 |
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859 cr = cairo_create (source); |
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860 cairo_set_source_rgb(cr, 0, 0, 0); |
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861 cairo_rectangle (cr, 0, 0, w, h); |
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862 cairo_fill (cr); |
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863 cairo_set_source_rgb(cr, 1, 1, 1); |
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864 pango_cairo_show_layout (cr, layout); |
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865 cairo_destroy (cr); |
| 9 | 866 |
|
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867 buffer = gdk_pixbuf_new_from_data (cairo_image_surface_get_data (source), |
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868 GDK_COLORSPACE_RGB, |
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869 cairo_image_surface_get_format (source) == CAIRO_FORMAT_ARGB32, |
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870 8, |
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871 cairo_image_surface_get_width (source), |
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872 cairo_image_surface_get_height (source), |
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873 cairo_image_surface_get_stride (source), |
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874 NULL, |
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875 NULL); |
| 9 | 876 |
| 877 sx = 0; | |
| 878 sy = 0; | |
| 879 dw = gdk_pixbuf_get_width(pixbuf); | |
| 880 dh = gdk_pixbuf_get_height(pixbuf); | |
| 881 | |
| 882 if (x < 0) | |
| 883 { | |
| 884 w += x; | |
| 885 sx = -x; | |
| 886 x = 0; | |
| 887 } | |
| 888 | |
| 889 if (y < 0) | |
| 890 { | |
| 891 h += y; | |
| 892 sy = -y; | |
| 893 y = 0; | |
| 894 } | |
| 895 | |
| 896 if (x + w > dw) w = dw - x; | |
| 897 if (y + h > dh) h = dh - y; | |
| 898 | |
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899 pixbuf_copy_font(buffer, sx, sy, |
| 9 | 900 pixbuf, x, y, w, h, |
| 901 r, g, b, a); | |
| 902 | |
| 903 g_object_unref(buffer); | |
|
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904 cairo_surface_destroy(source); |
| 9 | 905 } |
| 906 | |
|
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907 /* |
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908 *----------------------------------------------------------------------------- |
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909 * pixbuf drawing (triangle) |
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910 *----------------------------------------------------------------------------- |
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911 */ |
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912 |
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913 void util_clip_triangle(gint x1, gint y1, gint x2, gint y2, gint x3, gint y3, |
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914 gint *rx, gint *ry, gint *rw, gint *rh) |
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915 { |
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916 gint tx, ty, tw, th; |
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917 |
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918 tx = MIN(x1, x2); |
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919 tx = MIN(tx, x3); |
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920 ty = MIN(y1, y2); |
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921 ty = MIN(ty, y3); |
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922 tw = MAX(abs(x1 - x2), abs(x2 - x3)); |
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923 tw = MAX(tw, abs(x3 - x1)); |
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changeset
|
924 th = MAX(abs(y1 - y2), abs(y2 - y3)); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
925 th = MAX(th, abs(y3 - y1)); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
926 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
927 *rx = tx; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
928 *ry = ty; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
929 *rw = tw; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
930 *rh = th; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
931 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
932 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
933 void pixbuf_draw_triangle(GdkPixbuf *pb, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
934 gint clip_x, gint clip_y, gint clip_w, gint clip_h, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
935 gint x1, gint y1, gint x2, gint y2, gint x3, gint y3, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
936 guint8 r, guint8 g, guint8 b, guint8 a) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
937 { |
| 1443 | 938 gboolean has_alpha; |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
939 gint pw, ph, prs; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
940 gint rx, ry, rw, rh; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
941 gint tx, ty, tw, th; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
942 gint fx1, fy1; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
943 gint fx2, fy2; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
944 gint fw, fh; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
945 guchar *p_pix; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
946 guchar *pp; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
947 gint p_step; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
948 gdouble slope1, slope2; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
949 gint slope1_x, slope1_y; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
950 gint y; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
951 gint t; |
| 1437 | 952 gboolean middle = FALSE; |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
953 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
954 if (!pb) return; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
955 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
956 pw = gdk_pixbuf_get_width(pb); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
957 ph = gdk_pixbuf_get_height(pb); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
958 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
959 if (!util_clip_region(0, 0, pw, ph, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
960 clip_x, clip_y, clip_w, clip_h, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
961 &rx, &ry, &rw, &rh)) return; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
962 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
963 util_clip_triangle(x1, y1, x2, y2, x3, y3, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
964 &tx, &ty, &tw, &th); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
965 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
966 if (!util_clip_region(rx, ry, rw, rh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
967 tx, ty, tw, th, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
968 &fx1, &fy1, &fw, &fh)) return; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
969 fx2 = fx1 + fw; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
970 fy2 = fy1 + fh; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
971 |
| 1443 | 972 has_alpha = gdk_pixbuf_get_has_alpha(pb); |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
973 prs = gdk_pixbuf_get_rowstride(pb); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
974 p_pix = gdk_pixbuf_get_pixels(pb); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
975 |
| 1443 | 976 p_step = (has_alpha) ? 4 : 3; |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
977 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
978 if (y1 > y2) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
979 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
980 t = x1; x1 = x2; x2 = t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
981 t = y1; y1 = y2; y2 = t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
982 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
983 if (y2 > y3) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
984 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
985 t = x2; x2 = x3; x3 = t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
986 t = y2; y2 = y3; y3 = t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
987 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
988 if (y1 > y2) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
989 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
990 t = x1; x1 = x2; x2 = t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
991 t = y1; y1 = y2; y2 = t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
992 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
993 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
994 slope1 = (gdouble)(y2 - y1); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
995 if (slope1) slope1 = (gdouble)(x2 - x1) / slope1; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
996 slope1_x = x1; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
997 slope1_y = y1; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
998 slope2 = (gdouble)(y3 - y1); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
999 if (slope2) slope2 = (gdouble)(x3 - x1) / slope2; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1000 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1001 for (y = fy1; y < fy2; y++) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1002 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1003 gint xa, xb; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1004 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1005 if (!middle && y > y2) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1006 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1007 slope1 = (gdouble)(y3 - y2); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1008 if (slope1) slope1 = (gdouble)(x3 - x2) / slope1; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1009 slope1_x = x2; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1010 slope1_y = y2; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1011 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1012 middle = TRUE; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1013 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1014 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1015 xa = slope1_x + ((gdouble)slope1 * (y - slope1_y) + 0.5); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1016 xb = x1 + ((gdouble)slope2 * (y - y1) + 0.5); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1017 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1018 if (xa > xb) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1019 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1020 t = xa; xa = xb; xb = t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1021 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1022 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1023 xa = CLAMP(xa, fx1, fx2); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1024 xb = CLAMP(xb, fx1, fx2); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1025 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1026 pp = p_pix + y * prs + xa * p_step; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1027 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1028 while (xa < xb) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1029 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1030 *pp = (r * a + *pp * (256-a)) >> 8; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1031 pp++; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1032 *pp = (g * a + *pp * (256-a)) >> 8; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1033 pp++; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1034 *pp = (b * a + *pp * (256-a)) >> 8; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1035 pp++; |
| 1443 | 1036 if (has_alpha) pp++; |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1037 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1038 xa++; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1039 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1040 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1041 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1042 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1043 /* |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1044 *----------------------------------------------------------------------------- |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1045 * pixbuf drawing (line) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1046 *----------------------------------------------------------------------------- |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1047 */ |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1048 |
| 1443 | 1049 static gboolean util_clip_line(gdouble clip_x, gdouble clip_y, gdouble clip_w, gdouble clip_h, |
| 1050 gdouble x1, gdouble y1, gdouble x2, gdouble y2, | |
| 1051 gdouble *rx1, gdouble *ry1, gdouble *rx2, gdouble *ry2) | |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1052 { |
| 1437 | 1053 gboolean flip = FALSE; |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1054 gdouble d; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1055 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1056 if (x1 > x2) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1057 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1058 gdouble t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1059 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1060 t = x1; x1 = x2; x2 = t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1061 t = y1; y1 = y2; y2 = t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1062 flip = TRUE; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1063 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1064 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1065 if (x2 < clip_x || x1 > clip_x + clip_w) return FALSE; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1066 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1067 if (y1 < y2) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1068 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1069 if (y2 < clip_y || y1 > clip_y + clip_h) return FALSE; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1070 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1071 else |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1072 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1073 if (y1 < clip_y || y2 > clip_y + clip_h) return FALSE; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1074 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1075 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1076 d = x2 - x1; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1077 if (d > 0.0) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1078 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1079 gdouble slope; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1080 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1081 slope = (y2 - y1) / d; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1082 if (x1 < clip_x) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1083 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1084 y1 = y1 + slope * (clip_x - x1); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1085 x1 = clip_x; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1086 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1087 if (x2 > clip_x + clip_w) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1088 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1089 y2 = y2 + slope * (clip_x + clip_w - x2); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1090 x2 = clip_x + clip_w; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1091 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1092 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1093 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1094 if (y1 < y2) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1095 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1096 if (y2 < clip_y || y1 > clip_y + clip_h) return FALSE; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1097 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1098 else |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1099 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1100 gdouble t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1101 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1102 if (y1 < clip_y || y2 > clip_y + clip_h) return FALSE; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1103 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1104 t = x1; x1 = x2; x2 = t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1105 t = y1; y1 = y2; y2 = t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1106 flip = !flip; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1107 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1108 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1109 d = y2 - y1; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1110 if (d > 0.0) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1111 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1112 gdouble slope; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1113 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1114 slope = (x2 - x1) / d; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1115 if (y1 < clip_y) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1116 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1117 x1 = x1 + slope * (clip_y - y1); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1118 y1 = clip_y; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1119 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1120 if (y2 > clip_y + clip_h) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1121 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1122 x2 = x2 + slope * (clip_y + clip_h - y2); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1123 y2 = clip_y + clip_h; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1124 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1125 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1126 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1127 if (flip) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1128 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1129 *rx1 = x2; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1130 *ry1 = y2; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1131 *rx2 = x1; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1132 *ry2 = y1; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1133 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1134 else |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1135 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1136 *rx1 = x1; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1137 *ry1 = y1; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1138 *rx2 = x2; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1139 *ry2 = y2; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1140 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1141 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1142 return TRUE; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1143 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1144 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1145 void pixbuf_draw_line(GdkPixbuf *pb, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1146 gint clip_x, gint clip_y, gint clip_w, gint clip_h, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1147 gint x1, gint y1, gint x2, gint y2, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1148 guint8 r, guint8 g, guint8 b, guint8 a) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1149 { |
| 1443 | 1150 gboolean has_alpha; |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1151 gint pw, ph, prs; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1152 gint rx, ry, rw, rh; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1153 gdouble rx1, ry1, rx2, ry2; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1154 guchar *p_pix; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1155 guchar *pp; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1156 gint p_step; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1157 gdouble slope; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1158 gdouble x, y; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1159 gint px, py; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1160 gint cx1, cy1, cx2, cy2; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1161 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1162 if (!pb) return; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1163 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1164 pw = gdk_pixbuf_get_width(pb); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1165 ph = gdk_pixbuf_get_height(pb); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1166 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1167 if (!util_clip_region(0, 0, pw, ph, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1168 clip_x, clip_y, clip_w, clip_h, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1169 &rx, &ry, &rw, &rh)) return; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1170 if (!util_clip_line((gdouble)rx, (gdouble)ry, (gdouble)rw, (gdouble)rh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1171 (gdouble)x1, (gdouble)y1, (gdouble)x2, (gdouble)y2, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1172 &rx1, &ry1, &rx2, &ry2)) return; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1173 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1174 cx1 = rx; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1175 cy1 = ry; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1176 cx2 = rx + rw; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1177 cy2 = ry + rh; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1178 |
| 1443 | 1179 has_alpha = gdk_pixbuf_get_has_alpha(pb); |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1180 prs = gdk_pixbuf_get_rowstride(pb); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1181 p_pix = gdk_pixbuf_get_pixels(pb); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1182 |
| 1443 | 1183 p_step = (has_alpha) ? 4 : 3; |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1184 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1185 if (fabs(rx2 - rx1) > fabs(ry2 - ry1)) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1186 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1187 if (rx1 > rx2) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1188 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1189 gdouble t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1190 t = rx1; rx1 = rx2; rx2 = t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1191 t = ry1; ry1 = ry2; ry2 = t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1192 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1193 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1194 slope = rx2 - rx1; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1195 if (slope != 0.0) slope = (ry2 - ry1) / slope; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1196 for (x = rx1; x < rx2; x += 1.0) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1197 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1198 px = (gint)(x + 0.5); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1199 py = (gint)(ry1 + (x - rx1) * slope + 0.5); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1200 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1201 if (px >= cx1 && px < cx2 && py >= cy1 && py < cy2) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1202 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1203 pp = p_pix + py * prs + px * p_step; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1204 *pp = (r * a + *pp * (256-a)) >> 8; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1205 pp++; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1206 *pp = (g * a + *pp * (256-a)) >> 8; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1207 pp++; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1208 *pp = (b * a + *pp * (256-a)) >> 8; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1209 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1210 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1211 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1212 else |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1213 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1214 if (ry1 > ry2) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1215 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1216 gdouble t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1217 t = rx1; rx1 = rx2; rx2 = t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1218 t = ry1; ry1 = ry2; ry2 = t; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1219 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1220 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1221 slope = ry2 - ry1; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1222 if (slope != 0.0) slope = (rx2 - rx1) / slope; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1223 for (y = ry1; y < ry2; y += 1.0) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1224 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1225 px = (gint)(rx1 + (y - ry1) * slope + 0.5); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1226 py = (gint)(y + 0.5); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1227 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1228 if (px >= cx1 && px < cx2 && py >= cy1 && py < cy2) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1229 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1230 pp = p_pix + py * prs + px * p_step; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1231 *pp = (r * a + *pp * (256-a)) >> 8; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1232 pp++; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1233 *pp = (g * a + *pp * (256-a)) >> 8; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1234 pp++; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1235 *pp = (b * a + *pp * (256-a)) >> 8; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1236 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1237 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1238 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1239 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1240 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1241 /* |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1242 *----------------------------------------------------------------------------- |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1243 * pixbuf drawing (fades and shadows) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1244 *----------------------------------------------------------------------------- |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1245 */ |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1246 |
| 1443 | 1247 static void pixbuf_draw_fade_linear(guchar *p_pix, gint prs, gboolean has_alpha, |
| 1248 gint s, gboolean vertical, gint border, | |
| 442 | 1249 gint x1, gint y1, gint x2, gint y2, |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1250 guint8 r, guint8 g, guint8 b, guint8 a) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1251 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1252 guchar *pp; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1253 gint p_step; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1254 guint8 n = a; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1255 gint i, j; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1256 |
| 1443 | 1257 p_step = (has_alpha) ? 4 : 3; |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1258 for (j = y1; j < y2; j++) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1259 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1260 pp = p_pix + j * prs + x1 * p_step; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1261 if (!vertical) n = a - a * abs(j - s) / border; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1262 for (i = x1; i < x2; i++) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1263 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1264 if (vertical) n = a - a * abs(i - s) / border; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1265 *pp = (r * n + *pp * (256-n)) >> 8; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1266 pp++; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1267 *pp = (g * n + *pp * (256-n)) >> 8; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1268 pp++; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1269 *pp = (b * n + *pp * (256-n)) >> 8; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1270 pp++; |
| 1443 | 1271 if (has_alpha) pp++; |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1272 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1273 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1274 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1275 |
| 1443 | 1276 static void pixbuf_draw_fade_radius(guchar *p_pix, gint prs, gboolean has_alpha, |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1277 gint sx, gint sy, gint border, |
| 442 | 1278 gint x1, gint y1, gint x2, gint y2, |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1279 guint8 r, guint8 g, guint8 b, guint8 a) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1280 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1281 guchar *pp; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1282 gint p_step; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1283 gint i, j; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1284 |
| 1443 | 1285 p_step = (has_alpha) ? 4 : 3; |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1286 for (j = y1; j < y2; j++) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1287 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1288 pp = p_pix + j * prs + x1 * p_step; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1289 for (i = x1; i < x2; i++) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1290 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1291 guint8 n; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1292 gint r; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1293 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1294 r = MIN(border, (gint)sqrt((i-sx)*(i-sx) + (j-sy)*(j-sy))); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1295 n = a - a * r / border; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1296 *pp = (r * n + *pp * (256-n)) >> 8; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1297 pp++; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1298 *pp = (g * n + *pp * (256-n)) >> 8; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1299 pp++; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1300 *pp = (b * n + *pp * (256-n)) >> 8; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1301 pp++; |
| 1443 | 1302 if (has_alpha) pp++; |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1303 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1304 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1305 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1306 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1307 void pixbuf_draw_shadow(GdkPixbuf *pb, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1308 gint clip_x, gint clip_y, gint clip_w, gint clip_h, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1309 gint x, gint y, gint w, gint h, gint border, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1310 guint8 r, guint8 g, guint8 b, guint8 a) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1311 { |
| 1443 | 1312 gint has_alpha; |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1313 gint pw, ph, prs; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1314 gint rx, ry, rw, rh; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1315 gint fx, fy, fw, fh; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1316 guchar *p_pix; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1317 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1318 if (!pb) return; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1319 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1320 pw = gdk_pixbuf_get_width(pb); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1321 ph = gdk_pixbuf_get_height(pb); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1322 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1323 if (!util_clip_region(0, 0, pw, ph, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1324 clip_x, clip_y, clip_w, clip_h, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1325 &rx, &ry, &rw, &rh)) return; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1326 |
| 1443 | 1327 has_alpha = gdk_pixbuf_get_has_alpha(pb); |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1328 prs = gdk_pixbuf_get_rowstride(pb); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1329 p_pix = gdk_pixbuf_get_pixels(pb); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1330 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1331 if (util_clip_region(x + border, y + border, w - border * 2, h - border * 2, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1332 rx, ry, rw, rh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1333 &fx, &fy, &fw, &fh)) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1334 { |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1335 pixbuf_draw_rect_fill(pb, fx, fy, fw, fh, r, g, b, a); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1336 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1337 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1338 if (border < 1) return; |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1339 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1340 if (util_clip_region(x, y + border, border, h - border * 2, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1341 rx, ry, rw, rh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1342 &fx, &fy, &fw, &fh)) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1343 { |
| 1443 | 1344 pixbuf_draw_fade_linear(p_pix, prs, has_alpha, |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1345 x + border, TRUE, border, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1346 fx, fy, fx + fw, fy + fh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1347 r, g, b, a); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1348 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1349 if (util_clip_region(x + w - border, y + border, border, h - border * 2, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1350 rx, ry, rw, rh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1351 &fx, &fy, &fw, &fh)) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1352 { |
| 1443 | 1353 pixbuf_draw_fade_linear(p_pix, prs, has_alpha, |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1354 x + w - border, TRUE, border, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1355 fx, fy, fx + fw, fy + fh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1356 r, g, b, a); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1357 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1358 if (util_clip_region(x + border, y, w - border * 2, border, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1359 rx, ry, rw, rh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1360 &fx, &fy, &fw, &fh)) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1361 { |
| 1443 | 1362 pixbuf_draw_fade_linear(p_pix, prs, has_alpha, |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1363 y + border, FALSE, border, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1364 fx, fy, fx + fw, fy + fh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1365 r, g, b, a); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1366 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1367 if (util_clip_region(x + border, y + h - border, w - border * 2, border, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1368 rx, ry, rw, rh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1369 &fx, &fy, &fw, &fh)) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1370 { |
| 1443 | 1371 pixbuf_draw_fade_linear(p_pix, prs, has_alpha, |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1372 y + h - border, FALSE, border, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1373 fx, fy, fx + fw, fy + fh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1374 r, g, b, a); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1375 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1376 if (util_clip_region(x, y, border, border, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1377 rx, ry, rw, rh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1378 &fx, &fy, &fw, &fh)) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1379 { |
| 1443 | 1380 pixbuf_draw_fade_radius(p_pix, prs, has_alpha, |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1381 x + border, y + border, border, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1382 fx, fy, fx + fw, fy + fh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1383 r, g, b, a); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1384 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1385 if (util_clip_region(x + w - border, y, border, border, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1386 rx, ry, rw, rh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1387 &fx, &fy, &fw, &fh)) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1388 { |
| 1443 | 1389 pixbuf_draw_fade_radius(p_pix, prs, has_alpha, |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1390 x + w - border, y + border, border, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1391 fx, fy, fx + fw, fy + fh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1392 r, g, b, a); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1393 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1394 if (util_clip_region(x, y + h - border, border, border, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1395 rx, ry, rw, rh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1396 &fx, &fy, &fw, &fh)) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1397 { |
| 1443 | 1398 pixbuf_draw_fade_radius(p_pix, prs, has_alpha, |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1399 x + border, y + h - border, border, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1400 fx, fy, fx + fw, fy + fh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1401 r, g, b, a); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1402 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1403 if (util_clip_region(x + w - border, y + h - border, border, border, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1404 rx, ry, rw, rh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1405 &fx, &fy, &fw, &fh)) |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1406 { |
| 1443 | 1407 pixbuf_draw_fade_radius(p_pix, prs, has_alpha, |
|
33
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1408 x + w - border, y + h - border, border, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1409 fx, fy, fx + fw, fy + fh, |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1410 r, g, b, a); |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1411 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1412 } |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1413 |
|
96e4f244caa7
Wed Apr 6 06:41:25 2005 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
12
diff
changeset
|
1414 |
|
82
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1415 /* |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1416 *----------------------------------------------------------------------------- |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1417 * pixbuf color alterations |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1418 *----------------------------------------------------------------------------- |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1419 */ |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1420 |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1421 void pixbuf_desaturate_rect(GdkPixbuf *pb, |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1422 gint x, gint y, gint w, gint h) |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1423 { |
| 1443 | 1424 gboolean has_alpha; |
|
82
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1425 gint pw, ph, prs; |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1426 guchar *p_pix; |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1427 guchar *pp; |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1428 gint i, j; |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1429 |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1430 if (!pb) return; |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1431 |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1432 pw = gdk_pixbuf_get_width(pb); |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1433 ph = gdk_pixbuf_get_height(pb); |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1434 |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1435 if (x < 0 || x + w > pw) return; |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1436 if (y < 0 || y + h > ph) return; |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1437 |
| 1443 | 1438 has_alpha = gdk_pixbuf_get_has_alpha(pb); |
|
82
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1439 prs = gdk_pixbuf_get_rowstride(pb); |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1440 p_pix = gdk_pixbuf_get_pixels(pb); |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1441 |
| 442 | 1442 for (i = 0; i < h; i++) |
|
82
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1443 { |
| 1443 | 1444 pp = p_pix + (y + i) * prs + (x * (has_alpha ? 4 : 3)); |
|
82
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1445 for (j = 0; j < w; j++) |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1446 { |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1447 guint8 grey; |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1448 |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1449 grey = (pp[0] + pp[1] + pp[2]) / 3; |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1450 *pp = grey; |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1451 pp++; |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1452 *pp = grey; |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1453 pp++; |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1454 *pp = grey; |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1455 pp++; |
| 1443 | 1456 if (has_alpha) pp++; |
|
82
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1457 } |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
diff
changeset
|
1458 } |
|
05a6aea69f24
Thu Oct 19 15:20:51 2006 John Ellis <johne@verizon.net>
John Ellis <johne@verizon.net>
parents:
41
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changeset
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1459 } |
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1055
4bbdfab3c89a
Adding a vim modeline to all files - patch by Klaus Ethgen
Vladimir Nadvornik <nadvornik@suse.cz>
parents:
1043
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changeset
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1460 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */ |