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Some launcher / UI improvements.
author Matti Hamalainen <ccr@tnsp.org>
date Tue, 04 Sep 2018 15:29:10 +0300
parents b3579297e04e
children 1c9deae71fb1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 boolean mpHaveLocalStorage()
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2 {
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3 var test = 'mpLSTest';
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4 try {
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5 localStorage.setItem(test, test);
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6 if (localStorage.getItem(test) == test)
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7 {
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8 localStorage.removeItem(test);
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9 return true;
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10 }
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11 }
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12 catch (e) {
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13 return false;
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14 }
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15 return false;
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16 }
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17
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18
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19 function mpLoadFileSelector(fmtname, fmtexts, fcallback)
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20 {
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21 var mpUI = mpDisplayGUI();
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22 if (mpUI)
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23 {
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24 stClearChildren(mpUI);
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25
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26 mobj = stCE("input", "mpFileSelector");
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27 mobj.type = "file";
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28 mobj.name = "name";
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29 mobj.multiple = false;
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30
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31 if (fmtexts != null)
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32 mobj.accept = fmtexts;
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33
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34 stAddEventOb(mobj.name, mobj, "change",
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35 function(evt)
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36 {
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37 var files = evt.target.files;
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38 if (files.length > 0)
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39 {
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40 var freader = new FileReader();
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41
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42 freader.onloadend = (function(theFile) {
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43 fcallback(theFile, new Uint8Array(freader.result));
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44 });
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45
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46 freader.readAsArrayBuffer(files[0]);
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47 }
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48
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49 mpHideGUI();
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50 });
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51
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52 mpUI.appendChild(mobj);
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53
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54 mobj = stCE("button", "mpFileSelectorCancel");
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55 mobj.textContent = "Cancel";
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56 stAddEventOb(mobj.name, mobj, "click",
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57 function(evt)
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58 {
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59 mpHideGUI();
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60 });
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61 mpUI.appendChild(mobj);
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62
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63 mobj = stCE("span", "mpFileInfo");
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64 mobj.innerHTML = "Load / import an '<b>"+ fmtname +"</b>' file.";
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65 mpUI.appendChild(mobj);
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66 }
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67 else
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68 return null;
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69 }
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70
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71
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72 //
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73 // Basically the same as Processing loadBytes(), but it seems
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74 // that Processing.JS's loadBytes() is broken at least in v1.4.8
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75 // and does not return byte-clean data. So roll a replacement of
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76 // our own design. --ccr
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77 //
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78 byte[] mpLoadBinaryFile(String url)
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79 {
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80 var xhr = new XMLHttpRequest();
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81 xhr.open("GET", url, false);
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82 xhr.overrideMimeType("text/plain; charset=x-user-defined");
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83 xhr.setRequestHeader("If-Modified-Since", "Fri, 01 Jan 1960 00:00:00 GMT");
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84 xhr.send(null);
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85
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86 if (xhr.status !== 200 && xhr.status !== 0)
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87 return null;
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88
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89 var string = xhr.responseText;
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90 byte[] ret = new byte[string.length];
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91
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92 for (var i = 0; i < string.length; i++)
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93 {
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94 ret[i] = string.charCodeAt(i) & 0xff;
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95 }
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96
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97 return ret;
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98 }
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99
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100
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101 Blob mpMakeBinaryBlob(byte[] data)
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102 {
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103 var blob = null;
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104 if (data == null)
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105 return null;
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106
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107 if (typeof(data) == "string")
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108 blob = new Blob([data], {type: "application/octet-stream"});
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109 else
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110 if (typeof(data) == "object")
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111 blob = new Blob([new Uint8Array(data)], {type: "application/octet-stream"});
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112
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113 return blob;
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114 }
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115
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116
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117 //
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118 // "Save" a byte array to file. Basically creates a blob URI
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119 // and dumps it in the DOM, giving user a download.
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120 //
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121 boolean mpSaveBinaryBlob(String name, void blob)
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122 {
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123 var url = window.URL.createObjectURL(blob);
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124 if (url == null)
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125 {
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126 console.log("Could not create URL from BLOB object.");
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127 return false;
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128 }
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129
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130 var alink = stCE("a");
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131 var mpUI = stGE("mpUI2");
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132 stClearChildren(mpUI);
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133 mpUI.appendChild(alink);
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134
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135 alink.style = "display: none";
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136 alink.href = url;
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137 alink.download = name;
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138 alink.click();
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139
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140 window.URL.revokeObjectURL(url);
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141 return true;
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142 }
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143
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144
200
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145 boolean mpSaveBinaryFile(String name, byte[] data)
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146 {
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147 var blob = mpMakeBinaryBlob(data);
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148 if (blob == null)
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149 {
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150 console.log("Could not create BLOB from data.");
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151 return false;
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152 }
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153
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154 return mpSaveBinaryBlob(name, blob);
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155 }
dffdbdb4ded6 Split mpSaveBinaryFile() into mpSaveBinaryBlob() for saving JavaScript
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156
dffdbdb4ded6 Split mpSaveBinaryFile() into mpSaveBinaryBlob() for saving JavaScript
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157
195
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158 // bordh/v = 64, 32, omag = 1
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159 void mpSavePNGImage(String name, int fmt, boolean border, int bordh, int bordv, int omag)
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160 {
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161 PImage simg = mpRenderImage(border, bordh, bordv, omag);
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162 // if (g_data[int('Q')] == 0)
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163
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164 if (simg !== null)
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165 {
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166 // XXX TODO .. actually save the image, something like ..
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167 //simg.canvas.toBlob(function(idata){ mpSaveBinaryFile(name, idata); }, "image/png", 0.95);
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168 }
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169 }
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170
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171
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172 int mpLoadPNGImage(String name)
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173 {
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174 PImage simg = null;
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175 if (simg == null)
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176 return -1;
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177
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178 int lefth = g_farge;
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179 int righth = g_backg;
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180 storeparameters();
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181
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182 g_data[int('d')] = 0;
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183 g_data[int('t')] = 0;
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184 g_data[int('b')] = 1; //old IQ
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185
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186 if (!mpImportFromImage(simg))
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187 return -2;
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188
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189 restoreparameters();
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190 refreshpalette();
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191 refresh();
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192 g_boxreconstruct = 2;
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193 selectcolor(0, lefth);
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194 selectcolor(1, righth);
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195 return 0;
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196 }
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197
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198
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199 byte[] mpGetNativeImage()
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200 {
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201 //save the picture page g_map[], make sure some essential parameters are correct
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202 g_map[3] = byte(g_machine);
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203 g_map[5] = byte(MX);
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204 g_map[7] = byte(MY);
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205
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206 return g_map;
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207 }
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208
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209
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210 int mpSetNativeImage(byte[] data, boolean noError)
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211 {
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212 if (data == null)
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213 return -1;
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214
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215 if (data[3] != g_machine && !noError)
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216 return -2;
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217
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218 store_undo();
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219
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220 g_map = data;
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221
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222 refreshpalette();
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223 consistency();
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224 g_farge = int(g_realfront);
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225 g_ofarge = g_farge;
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226 g_backg = int(g_realback);
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227 sussborder();
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228
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229 return 0;
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230 }
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231
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232
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233 int mpLoadNativeImage(String name, boolean noError)
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234 {
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235 return mpSetNativeImage(
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236 mpLoadBinaryFile(name), noError);
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237 }
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238
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239
208
c6c1dd769566 Some work towards user-selectable alternate palettes in the launcher.
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diff changeset
240 // XXX TODO: Make this support other platforms than C64
195
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241 boolean mpLoadPalette(String fname)
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242 {
212
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243 String ffname = "palettes/"+ g_map[13] +"/"+ fname;
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244 byte fdata[] = mpLoadBinaryFile(ffname);
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diff changeset
245
195
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246 if (fdata == null ||
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247 fdata.length != 772 ||
212
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diff changeset
248 fdata[0x301] != 0x10 ||
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diff changeset
249 fdata[0x302] != 0xff ||
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diff changeset
250 fdata[0x303] != 0xff)
195
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251 {
212
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diff changeset
252 console.log("Could not load palette file '"+ ffname +"'.");
195
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253 return false;
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254 }
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255
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256 for (int n = 0; n < 16; n++)
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257 {
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258 makecolor(n,
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259 int(fdata[n * 3]),
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260 int(fdata[n * 3 + 1]),
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261 int(fdata[n * 3 + 2]));
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262 }
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263
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264 mpSetUIColors();
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265
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266 sussborder();
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267 refresh_all();
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268
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269 return true;
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270 }