xmms-sid: src/xs_curve.c annotate

annotate src/xs_curve.c @ 359:b1a858b8cb1a

Re-indentation all (non-generated) code.

author	Matti Hamalainen <ccr@tnsp.org>
date	Mon, 07 Nov 2005 09:50:04 +0000
parents	4f247b19c9ea
children	df6f12a00305

rev	line source
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	1 /* GTK - The GIMP Toolkit
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	2 * Copyright (C) 1997 David Mosberger
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	3 *
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	4 * This library is free software; you can redistribute it and/or
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	5 * modify it under the terms of the GNU Library General Public
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	6 * License as published by the Free Software Foundation; either
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	7 * version 2 of the License, or (at your option) any later version.
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	8 *
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	9 * This library is distributed in the hope that it will be useful,
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	12 * Library General Public License for more details.
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	13 *
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	14 * You should have received a copy of the GNU Library General Public
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	15 * License along with this library; if not, write to the
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	17 * Boston, MA 02111-1307, USA.
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	18 */
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	19
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	20 /*
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	21 * Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	22 * file for a list of people on the GTK+ Team. See the ChangeLog
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	23 * files for a list of changes. These files are distributed with
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	25 */
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	26
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	27 #include <stdlib.h>
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	28 #include <string.h>
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	29 #include <math.h>
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	30
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	31 #include "xs_curve.h"
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	32 #include <gtk/gtkdrawingarea.h>
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	33 #include <gtk/gtkmain.h>
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	34 #include <gtk/gtksignal.h>
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	35 /*
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	36 #include <gtk/gtktable.h>
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	37 #include <gtk/gtkradiobutton.h>
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	38 */
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	39
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	40 #define RADIUS 3 /* radius of the control points */
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	41 #define MIN_DISTANCE 8 /* min distance between control points */
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	42
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	43 #define GRAPH_MASK (GDK_EXPOSURE_MASK \| \
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	44 GDK_POINTER_MOTION_MASK \| \
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	45 GDK_POINTER_MOTION_HINT_MASK \| \
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	46 GDK_ENTER_NOTIFY_MASK \| \
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	47 GDK_BUTTON_PRESS_MASK \| \
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	48 GDK_BUTTON_RELEASE_MASK \| \
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	49 GDK_BUTTON1_MOTION_MASK)
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	50
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	51 enum
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	52 {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	53 ARG_0,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	54 ARG_CURVE_TYPE,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	55 ARG_MIN_X,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	56 ARG_MAX_X,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	57 ARG_MIN_Y,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	58 ARG_MAX_Y
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	59 };
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	60
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	61 static GtkDrawingAreaClass *parent_class = NULL;
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	62 static guint curve_type_changed_signal = 0;
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	63
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	64
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	65 /* forward declarations: */
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	66 static void gtk_curve_class_init(GtkCurveClass * class);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	67 static void gtk_curve_init(GtkCurve * curve);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	68 static void gtk_curve_set_arg(GtkObject * object, GtkArg * arg, guint arg_id);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	69 static void gtk_curve_get_arg(GtkObject * object, GtkArg * arg, guint arg_id);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	70 static void gtk_curve_finalize(GtkObject * object);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	71 static gint gtk_curve_graph_events(GtkWidget * widget, GdkEvent * event, GtkCurve * c);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	72 static void gtk_curve_size_graph(GtkCurve * curve);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	73
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	74 GtkType gtk_curve_get_type(void)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	75 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	76 static GtkType curve_type = 0;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	77
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	78 if (!curve_type) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	79 static const GtkTypeInfo curve_info = {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	80 "GtkCurve",
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	81 sizeof(GtkCurve),
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	82 sizeof(GtkCurveClass),
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	83 (GtkClassInitFunc) gtk_curve_class_init,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	84 (GtkObjectInitFunc) gtk_curve_init,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	85 /* reserved_1 */ NULL,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	86 /* reserved_2 */ NULL,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	87 (GtkClassInitFunc) NULL,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	88 };
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	89
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	90 curve_type = gtk_type_unique(GTK_TYPE_DRAWING_AREA, &curve_info);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	91 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	92 return curve_type;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	93 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	94
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	95 static void gtk_curve_class_init(GtkCurveClass * class)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	96 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	97 GtkObjectClass *object_class;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	98
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	99 parent_class = gtk_type_class(GTK_TYPE_DRAWING_AREA);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	100
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	101 object_class = (GtkObjectClass *) class;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	102
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	103 object_class->set_arg = gtk_curve_set_arg;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	104 object_class->get_arg = gtk_curve_get_arg;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	105 object_class->finalize = gtk_curve_finalize;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	106
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	107 curve_type_changed_signal =
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	108 gtk_signal_new("curve_type_changed", GTK_RUN_FIRST, object_class->type,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	109 GTK_SIGNAL_OFFSET(GtkCurveClass, curve_type_changed),
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	110 gtk_marshal_NONE__NONE, GTK_TYPE_NONE, 0);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	111 gtk_object_class_add_signals(object_class, &curve_type_changed_signal, 1);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	112
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	113 gtk_object_add_arg_type("GtkCurve::curve_type", GTK_TYPE_CURVE_TYPE, GTK_ARG_READWRITE, ARG_CURVE_TYPE);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	114 gtk_object_add_arg_type("GtkCurve::min_x", GTK_TYPE_FLOAT, GTK_ARG_READWRITE, ARG_MIN_X);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	115 gtk_object_add_arg_type("GtkCurve::max_x", GTK_TYPE_FLOAT, GTK_ARG_READWRITE, ARG_MAX_X);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	116 gtk_object_add_arg_type("GtkCurve::min_y", GTK_TYPE_FLOAT, GTK_ARG_READWRITE, ARG_MIN_Y);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	117 gtk_object_add_arg_type("GtkCurve::max_y", GTK_TYPE_FLOAT, GTK_ARG_READWRITE, ARG_MAX_Y);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	118 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	119
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	120 static void gtk_curve_init(GtkCurve * curve)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	121 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	122 gint old_mask;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	123
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	124 curve->cursor_type = GDK_TOP_LEFT_ARROW;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	125 curve->pixmap = NULL;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	126 curve->curve_type = GTK_CURVE_TYPE_SPLINE;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	127 curve->height = 0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	128 curve->grab_point = -1;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	129
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	130 curve->num_points = 0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	131 curve->point = 0;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	132
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	133 curve->num_ctlpoints = 0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	134 curve->ctlpoint = NULL;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	135
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	136 curve->min_x = 0.0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	137 curve->max_x = 1.0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	138 curve->min_y = 0.0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	139 curve->max_y = 1.0;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	140
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	141 old_mask = gtk_widget_get_events(GTK_WIDGET(curve));
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	142 gtk_widget_set_events(GTK_WIDGET(curve), old_mask \| GRAPH_MASK);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	143 gtk_signal_connect(GTK_OBJECT(curve), "event", (GtkSignalFunc) gtk_curve_graph_events, curve);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	144 gtk_curve_size_graph(curve);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	145 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	146
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	147 static void gtk_curve_set_arg(GtkObject * object, GtkArg * arg, guint arg_id)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	148 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	149 GtkCurve *curve = GTK_CURVE(object);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	150
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	151 switch (arg_id) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	152 case ARG_CURVE_TYPE:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	153 gtk_curve_set_curve_type(curve, GTK_VALUE_ENUM(*arg));
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	154 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	155 case ARG_MIN_X:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	156 gtk_curve_set_range(curve, GTK_VALUE_FLOAT(*arg), curve->max_x, curve->min_y, curve->max_y);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	157 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	158 case ARG_MAX_X:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	159 gtk_curve_set_range(curve, curve->min_x, GTK_VALUE_FLOAT(*arg), curve->min_y, curve->max_y);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	160 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	161 case ARG_MIN_Y:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	162 gtk_curve_set_range(curve, curve->min_x, curve->max_x, GTK_VALUE_FLOAT(*arg), curve->max_y);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	163 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	164 case ARG_MAX_Y:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	165 gtk_curve_set_range(curve, curve->min_x, curve->max_x, curve->min_y, GTK_VALUE_FLOAT(*arg));
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	166 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	167 }
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	168 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	169
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	170 static void gtk_curve_get_arg(GtkObject * object, GtkArg * arg, guint arg_id)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	171 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	172 GtkCurve *curve = GTK_CURVE(object);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	173
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	174 switch (arg_id) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	175 case ARG_CURVE_TYPE:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	176 GTK_VALUE_ENUM(*arg) = curve->curve_type;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	177 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	178 case ARG_MIN_X:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	179 GTK_VALUE_FLOAT(*arg) = curve->min_x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	180 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	181 case ARG_MAX_X:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	182 GTK_VALUE_FLOAT(*arg) = curve->max_x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	183 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	184 case ARG_MIN_Y:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	185 GTK_VALUE_FLOAT(*arg) = curve->min_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	186 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	187 case ARG_MAX_Y:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	188 GTK_VALUE_FLOAT(*arg) = curve->max_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	189 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	190 default:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	191 arg->type = GTK_TYPE_INVALID;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	192 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	193 }
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	194 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	195
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	196 static int project(gfloat value, gfloat min, gfloat max, int norm)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	197 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	198 return (norm - 1) * ((value - min) / (max - min)) + 0.5;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	199 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	200
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	201 static gfloat unproject(gint value, gfloat min, gfloat max, int norm)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	202 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	203 return value / (gfloat) (norm - 1) * (max - min) + min;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	204 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	205
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	206 /* Solve the tridiagonal equation system that determines the second
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	207 derivatives for the interpolation points. (Based on Numerical
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	208 Recipies 2nd Edition.) */
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	209 static void spline_solve(int n, gfloat x[], gfloat y[], gfloat y2[])
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	210 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	211 gfloat p, sig, *u;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	212 gint i, k;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	213
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	214 u = g_malloc((n - 1) * sizeof(u[0]));
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	215
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	216 y2[0] = u[0] = 0.0; /* set lower boundary condition to "natural" */
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	217
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	218 for (i = 1; i < n - 1; ++i) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	219 sig = (x[i] - x[i - 1]) / (x[i + 1] - x[i - 1]);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	220 p = sig * y2[i - 1] + 2.0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	221 y2[i] = (sig - 1.0) / p;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	222 u[i] = ((y[i + 1] - y[i])
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	223 / (x[i + 1] - x[i]) - (y[i] - y[i - 1]) / (x[i] - x[i - 1]));
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	224 u[i] = (6.0 * u[i] / (x[i + 1] - x[i - 1]) - sig * u[i - 1]) / p;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	225 }
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	226
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	227 y2[n - 1] = 0.0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	228 for (k = n - 2; k >= 0; --k)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	229 y2[k] = y2[k] * y2[k + 1] + u[k];
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	230
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	231 g_free(u);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	232 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	233
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	234 static gfloat spline_eval(int n, gfloat x[], gfloat y[], gfloat y2[], gfloat val)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	235 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	236 gint k_lo, k_hi, k;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	237 gfloat h, b, a;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	238
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	239 /* do a binary search for the right interval: */
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	240 k_lo = 0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	241 k_hi = n - 1;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	242 while (k_hi - k_lo > 1) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	243 k = (k_hi + k_lo) / 2;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	244 if (x[k] > val)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	245 k_hi = k;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	246 else
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	247 k_lo = k;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	248 }
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	249
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	250 h = x[k_hi] - x[k_lo];
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	251 g_assert(h > 0.0);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	252
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	253 a = (x[k_hi] - val) / h;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	254 b = (val - x[k_lo]) / h;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	255 return a * y[k_lo] + b * y[k_hi] + ((a * a * a - a) * y2[k_lo] + (b * b * b - b) * y2[k_hi]) * (h * h) / 6.0;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	256 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	257
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	258 static void gtk_curve_interpolate(GtkCurve * c, gint width, gint height)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	259 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	260 gfloat *vector;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	261 int i;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	262
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	263 vector = g_malloc(width * sizeof(vector[0]));
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	264
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	265 gtk_curve_get_vector(c, width, vector);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	266
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	267 c->height = height;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	268 if (c->num_points != width) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	269 c->num_points = width;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	270 if (c->point)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	271 g_free(c->point);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	272 c->point = g_malloc(c->num_points * sizeof(c->point[0]));
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	273 }
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	274
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	275 for (i = 0; i < width; ++i) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	276 c->point[i].x = RADIUS + i;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	277 c->point[i].y = RADIUS + height - project(vector[i], c->min_y, c->max_y, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	278 }
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	279
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	280 g_free(vector);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	281 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	282
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	283 static void gtk_curve_draw(GtkCurve * c, gint width, gint height)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	284 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	285 GtkStateType state;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	286 GtkStyle *style;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	287 gint i;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	288
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	289 if (!c->pixmap)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	290 return;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	291
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	292 if (c->height != height \|\| c->num_points != width)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	293 gtk_curve_interpolate(c, width, height);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	294
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	295 state = GTK_STATE_NORMAL;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	296 if (!GTK_WIDGET_IS_SENSITIVE(GTK_WIDGET(c)))
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	297 state = GTK_STATE_INSENSITIVE;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	298
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	299 style = GTK_WIDGET(c)->style;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	300
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	301 /* clear the pixmap: */
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	302 gtk_paint_flat_box(style, c->pixmap, GTK_STATE_NORMAL, GTK_SHADOW_NONE,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	303 NULL, GTK_WIDGET(c), "curve_bg", 0, 0, width + RADIUS * 2, height + RADIUS * 2);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	304 /* draw the grid lines: (XXX make more meaningful) */
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	305 for (i = 0; i < 5; i++) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	306 gdk_draw_line(c->pixmap, style->dark_gc[state],
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	307 RADIUS, i * (height / 4.0) + RADIUS, width + RADIUS, i * (height / 4.0) + RADIUS);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	308 gdk_draw_line(c->pixmap, style->dark_gc[state],
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	309 i * (width / 4.0) + RADIUS, RADIUS, i * (width / 4.0) + RADIUS, height + RADIUS);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	310 }
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	311
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	312 gdk_draw_points(c->pixmap, style->fg_gc[state], c->point, c->num_points);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	313 if (c->curve_type != GTK_CURVE_TYPE_FREE)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	314 for (i = 0; i < c->num_ctlpoints; ++i) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	315 gint x, y;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	316
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	317 if (c->ctlpoint[i][0] < c->min_x)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	318 continue;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	319
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	320 x = project(c->ctlpoint[i][0], c->min_x, c->max_x, width);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	321 y = height - project(c->ctlpoint[i][1], c->min_y, c->max_y, height);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	322
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	323 /* draw a bullet: */
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	324 gdk_draw_arc(c->pixmap, style->fg_gc[state], TRUE, x, y, RADIUS * 2, RADIUS * 2, 0, 360 * 64);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	325 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	326 gdk_draw_pixmap(GTK_WIDGET(c)->window, style->fg_gc[state], c->pixmap,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	327 0, 0, 0, 0, width + RADIUS * 2, height + RADIUS * 2);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	328 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	329
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	330 static gint gtk_curve_graph_events(GtkWidget * widget, GdkEvent * event, GtkCurve * c)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	331 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	332 GdkCursorType new_type = c->cursor_type;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	333 gint i, src, dst, leftbound, rightbound;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	334 GdkEventButton *bevent;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	335 GdkEventMotion *mevent;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	336 GtkWidget *w;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	337 gint tx, ty;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	338 gint cx, x, y, width, height;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	339 gint closest_point = 0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	340 gfloat rx, ry, min_x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	341 guint distance;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	342 gint x1, x2, y1, y2;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	343
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	344 w = GTK_WIDGET(c);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	345 width = w->allocation.width - RADIUS * 2;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	346 height = w->allocation.height - RADIUS * 2;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	347
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	348 if ((width < 0) \|\| (height < 0))
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	349 return FALSE;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	350
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	351 /* get the pointer position */
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	352 gdk_window_get_pointer(w->window, &tx, &ty, NULL);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	353 x = CLAMP((tx - RADIUS), 0, width - 1);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	354 y = CLAMP((ty - RADIUS), 0, height - 1);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	355
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	356 min_x = c->min_x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	357
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	358 distance = ~0U;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	359 for (i = 0; i < c->num_ctlpoints; ++i) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	360 cx = project(c->ctlpoint[i][0], min_x, c->max_x, width);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	361 if ((guint) abs(x - cx) < distance) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	362 distance = abs(x - cx);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	363 closest_point = i;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	364 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	365 }
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	366
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	367 switch (event->type) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	368 case GDK_CONFIGURE:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	369 if (c->pixmap)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	370 gdk_pixmap_unref(c->pixmap);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	371 c->pixmap = 0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	372 /* fall through */
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	373 case GDK_EXPOSE:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	374 if (!c->pixmap)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	375 c->pixmap = gdk_pixmap_new(w->window, w->allocation.width, w->allocation.height, -1);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	376 gtk_curve_draw(c, width, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	377 break;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	378
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	379 case GDK_BUTTON_PRESS:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	380 gtk_grab_add(widget);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	381
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	382 bevent = (GdkEventButton *) event;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	383 new_type = GDK_TCROSS;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	384
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	385 switch (c->curve_type) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	386 case GTK_CURVE_TYPE_LINEAR:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	387 case GTK_CURVE_TYPE_SPLINE:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	388 if (distance > MIN_DISTANCE) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	389 /* insert a new control point */
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	390 if (c->num_ctlpoints > 0) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	391 cx = project(c->ctlpoint[closest_point][0], min_x, c->max_x, width);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	392 if (x > cx)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	393 ++closest_point;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	394 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	395 ++c->num_ctlpoints;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	396 c->ctlpoint = g_realloc(c->ctlpoint, c->num_ctlpoints * sizeof(*c->ctlpoint));
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	397 for (i = c->num_ctlpoints - 1; i > closest_point; --i)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	398 memcpy(c->ctlpoint + i, c->ctlpoint + i - 1, sizeof(*c->ctlpoint));
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	399 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	400 c->grab_point = closest_point;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	401 c->ctlpoint[c->grab_point][0] = unproject(x, min_x, c->max_x, width);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	402 c->ctlpoint[c->grab_point][1] = unproject(height - y, c->min_y, c->max_y, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	403
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	404 gtk_curve_interpolate(c, width, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	405 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	406
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	407 case GTK_CURVE_TYPE_FREE:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	408 c->point[x].x = RADIUS + x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	409 c->point[x].y = RADIUS + y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	410 c->grab_point = x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	411 c->last = y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	412 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	413 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	414 gtk_curve_draw(c, width, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	415 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	416
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	417 case GDK_BUTTON_RELEASE:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	418 gtk_grab_remove(widget);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	419
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	420 /* delete inactive points: */
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	421 if (c->curve_type != GTK_CURVE_TYPE_FREE) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	422 for (src = dst = 0; src < c->num_ctlpoints; ++src) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	423 if (c->ctlpoint[src][0] >= min_x) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	424 memcpy(c->ctlpoint + dst, c->ctlpoint + src, sizeof(*c->ctlpoint));
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	425 ++dst;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	426 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	427 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	428 if (dst < src) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	429 c->num_ctlpoints -= (src - dst);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	430 if (c->num_ctlpoints <= 0) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	431 c->num_ctlpoints = 1;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	432 c->ctlpoint[0][0] = min_x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	433 c->ctlpoint[0][1] = c->min_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	434 gtk_curve_interpolate(c, width, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	435 gtk_curve_draw(c, width, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	436 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	437 c->ctlpoint = g_realloc(c->ctlpoint, c->num_ctlpoints * sizeof(*c->ctlpoint));
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	438 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	439 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	440 new_type = GDK_FLEUR;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	441 c->grab_point = -1;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	442 break;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	443
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	444 case GDK_MOTION_NOTIFY:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	445 mevent = (GdkEventMotion *) event;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	446
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	447 switch (c->curve_type) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	448 case GTK_CURVE_TYPE_LINEAR:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	449 case GTK_CURVE_TYPE_SPLINE:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	450 if (c->grab_point == -1) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	451 /* if no point is grabbed... */
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	452 if (distance <= MIN_DISTANCE)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	453 new_type = GDK_FLEUR;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	454 else
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	455 new_type = GDK_TCROSS;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	456 } else {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	457 /* drag the grabbed point */
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	458 new_type = GDK_TCROSS;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	459
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	460 leftbound = -MIN_DISTANCE;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	461 if (c->grab_point > 0)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	462 leftbound = project(c->ctlpoint[c->grab_point - 1][0], min_x, c->max_x, width);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	463
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	464 rightbound = width + RADIUS * 2 + MIN_DISTANCE;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	465 if (c->grab_point + 1 < c->num_ctlpoints)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	466 rightbound = project(c->ctlpoint[c->grab_point + 1][0], min_x, c->max_x, width);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	467
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	468 if (tx <= leftbound \|\| tx >= rightbound
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	469 \|\| ty > height + RADIUS * 2 + MIN_DISTANCE \|\| ty < -MIN_DISTANCE)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	470 c->ctlpoint[c->grab_point][0] = min_x - 1.0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	471 else {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	472 rx = unproject(x, min_x, c->max_x, width);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	473 ry = unproject(height - y, c->min_y, c->max_y, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	474 c->ctlpoint[c->grab_point][0] = rx;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	475 c->ctlpoint[c->grab_point][1] = ry;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	476 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	477 gtk_curve_interpolate(c, width, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	478 gtk_curve_draw(c, width, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	479 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	480 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	481
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	482 case GTK_CURVE_TYPE_FREE:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	483 if (c->grab_point != -1) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	484 if (c->grab_point > x) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	485 x1 = x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	486 x2 = c->grab_point;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	487 y1 = y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	488 y2 = c->last;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	489 } else {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	490 x1 = c->grab_point;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	491 x2 = x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	492 y1 = c->last;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	493 y2 = y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	494 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	495
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	496 if (x2 != x1)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	497 for (i = x1; i <= x2; i++) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	498 c->point[i].x = RADIUS + i;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	499 c->point[i].y = RADIUS + (y1 + ((y2 - y1) * (i - x1)) / (x2 - x1));
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	500 } else {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	501 c->point[x].x = RADIUS + x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	502 c->point[x].y = RADIUS + y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	503 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	504 c->grab_point = x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	505 c->last = y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	506 gtk_curve_draw(c, width, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	507 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	508 if (mevent->state & GDK_BUTTON1_MASK)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	509 new_type = GDK_TCROSS;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	510 else
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	511 new_type = GDK_PENCIL;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	512 break;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	513 }
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	514 if (new_type != (GdkCursorType) c->cursor_type) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	515 GdkCursor *cursor;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	516
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	517 c->cursor_type = new_type;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	518
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	519 cursor = gdk_cursor_new(c->cursor_type);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	520 gdk_window_set_cursor(w->window, cursor);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	521 gdk_cursor_destroy(cursor);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	522 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	523 break;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	524
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	525 default:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	526 break;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	527 }
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	528 return FALSE;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	529 }
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	530
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	531 void gtk_curve_set_curve_type(GtkCurve * c, GtkCurveType new_type)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	532 {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	533 gfloat rx, dx;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	534 gint x, i;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	535
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	536 if (new_type != c->curve_type) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	537 gint width, height;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	538
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	539 width = GTK_WIDGET(c)->allocation.width - RADIUS * 2;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	540 height = GTK_WIDGET(c)->allocation.height - RADIUS * 2;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	541
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	542 if (new_type == GTK_CURVE_TYPE_FREE) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	543 gtk_curve_interpolate(c, width, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	544 c->curve_type = new_type;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	545 } else if (c->curve_type == GTK_CURVE_TYPE_FREE) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	546 if (c->ctlpoint)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	547 g_free(c->ctlpoint);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	548 c->num_ctlpoints = 9;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	549 c->ctlpoint = g_malloc(c->num_ctlpoints * sizeof(*c->ctlpoint));
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	550
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	551 rx = 0.0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	552 dx = (width - 1) / (gfloat) (c->num_ctlpoints - 1);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	553
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	554 for (i = 0; i < c->num_ctlpoints; ++i, rx += dx) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	555 x = (int) (rx + 0.5);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	556 c->ctlpoint[i][0] = unproject(x, c->min_x, c->max_x, width);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	557 c->ctlpoint[i][1] =
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	558 unproject(RADIUS + height - c->point[x].y, c->min_y, c->max_y, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	559 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	560 c->curve_type = new_type;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	561 gtk_curve_interpolate(c, width, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	562 } else {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	563 c->curve_type = new_type;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	564 gtk_curve_interpolate(c, width, height);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	565 }
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	566 gtk_signal_emit(GTK_OBJECT(c), curve_type_changed_signal);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	567 gtk_curve_draw(c, width, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	568 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	569 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	570
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	571 static void gtk_curve_size_graph(GtkCurve * curve)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	572 {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	573 gint width, height;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	574 gfloat aspect;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	575
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	576 width = (curve->max_x - curve->min_x) + 1;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	577 height = (curve->max_y - curve->min_y) + 1;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	578 aspect = width / (gfloat) height;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	579 if (width > gdk_screen_width() / 4)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	580 width = gdk_screen_width() / 4;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	581 if (height > gdk_screen_height() / 4)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	582 height = gdk_screen_height() / 4;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	583
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	584 if (aspect < 1.0)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	585 width = height * aspect;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	586 else
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	587 height = width / aspect;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	588
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	589 gtk_drawing_area_size(GTK_DRAWING_AREA(curve), width + RADIUS * 2, height + RADIUS * 2);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	590 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	591
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	592 static void gtk_curve_reset_vector(GtkCurve * curve)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	593 {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	594 if (curve->ctlpoint)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	595 g_free(curve->ctlpoint);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	596
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	597 curve->num_ctlpoints = 2;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	598 curve->ctlpoint = g_malloc(2 * sizeof(curve->ctlpoint[0]));
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	599 curve->ctlpoint[0][0] = curve->min_x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	600 curve->ctlpoint[0][1] = curve->min_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	601 curve->ctlpoint[1][0] = curve->max_x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	602 curve->ctlpoint[1][1] = curve->max_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	603
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	604 if (curve->pixmap) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	605 gint width, height;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	606
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	607 width = GTK_WIDGET(curve)->allocation.width - RADIUS * 2;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	608 height = GTK_WIDGET(curve)->allocation.height - RADIUS * 2;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	609
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	610 if (curve->curve_type == GTK_CURVE_TYPE_FREE) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	611 curve->curve_type = GTK_CURVE_TYPE_LINEAR;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	612 gtk_curve_interpolate(curve, width, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	613 curve->curve_type = GTK_CURVE_TYPE_FREE;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	614 } else
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	615 gtk_curve_interpolate(curve, width, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	616 gtk_curve_draw(curve, width, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	617 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	618 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	619
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	620 void gtk_curve_reset(GtkCurve * c)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	621 {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	622 GtkCurveType old_type;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	623
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	624 old_type = c->curve_type;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	625 c->curve_type = GTK_CURVE_TYPE_SPLINE;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	626 gtk_curve_reset_vector(c);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	627
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	628 if (old_type != GTK_CURVE_TYPE_SPLINE)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	629 gtk_signal_emit(GTK_OBJECT(c), curve_type_changed_signal);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	630 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	631
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	632 void gtk_curve_set_gamma(GtkCurve * c, gfloat gamma)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	633 {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	634 gfloat x, one_over_gamma, height, one_over_width;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	635 GtkCurveType old_type;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	636 gint i;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	637
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	638 if (c->num_points < 2)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	639 return;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	640
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	641 old_type = c->curve_type;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	642 c->curve_type = GTK_CURVE_TYPE_FREE;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	643
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	644 if (gamma <= 0)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	645 one_over_gamma = 1.0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	646 else
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	647 one_over_gamma = 1.0 / gamma;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	648 one_over_width = 1.0 / (c->num_points - 1);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	649 height = c->height;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	650 for (i = 0; i < c->num_points; ++i) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	651 x = (gfloat) i / (c->num_points - 1);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	652 c->point[i].x = RADIUS + i;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	653 c->point[i].y = RADIUS + (height * (1.0 - pow(x, one_over_gamma)) + 0.5);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	654 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	655
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	656 if (old_type != GTK_CURVE_TYPE_FREE)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	657 gtk_signal_emit(GTK_OBJECT(c), curve_type_changed_signal);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	658
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	659 gtk_curve_draw(c, c->num_points, c->height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	660 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	661
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	662 void gtk_curve_set_range(GtkCurve * curve, gfloat min_x, gfloat max_x, gfloat min_y, gfloat max_y)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	663 {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	664 curve->min_x = min_x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	665 curve->max_x = max_x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	666 curve->min_y = min_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	667 curve->max_y = max_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	668
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	669 gtk_curve_size_graph(curve);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	670 gtk_curve_reset_vector(curve);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	671 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	672
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	673 void gtk_curve_set_vector(GtkCurve * c, int veclen, gfloat vector[])
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	674 {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	675 GtkCurveType old_type;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	676 gfloat rx, dx, ry;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	677 gint i, height;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	678
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	679 old_type = c->curve_type;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	680 c->curve_type = GTK_CURVE_TYPE_FREE;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	681
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	682 if (c->point)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	683 height = GTK_WIDGET(c)->allocation.height - RADIUS * 2;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	684 else {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	685 height = (c->max_y - c->min_y);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	686 if (height > gdk_screen_height() / 4)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	687 height = gdk_screen_height() / 4;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	688
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	689 c->height = height;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	690 c->num_points = veclen;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	691 c->point = g_malloc(c->num_points * sizeof(c->point[0]));
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	692 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	693 rx = 0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	694 dx = (veclen - 1.0) / (c->num_points - 1.0);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	695
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	696 for (i = 0; i < c->num_points; ++i, rx += dx) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	697 ry = vector[(int) (rx + 0.5)];
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	698 if (ry > c->max_y)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	699 ry = c->max_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	700 if (ry < c->min_y)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	701 ry = c->min_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	702 c->point[i].x = RADIUS + i;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	703 c->point[i].y = RADIUS + height - project(ry, c->min_y, c->max_y, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	704 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	705 if (old_type != GTK_CURVE_TYPE_FREE)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	706 gtk_signal_emit(GTK_OBJECT(c), curve_type_changed_signal);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	707
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	708 gtk_curve_draw(c, c->num_points, height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	709 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	710
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	711 void gtk_curve_get_vector(GtkCurve * c, int veclen, gfloat vector[])
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	712 {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	713 gfloat rx, ry, dx, dy, min_x, delta_x, mem, xv, yv, y2v, prev;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	714 gint dst, i, x, next, num_active_ctlpoints = 0, first_active = -1;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	715
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	716 min_x = c->min_x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	717
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	718 if (c->curve_type != GTK_CURVE_TYPE_FREE) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	719 /* count active points: */
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	720 prev = min_x - 1.0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	721 for (i = num_active_ctlpoints = 0; i < c->num_ctlpoints; ++i)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	722 if (c->ctlpoint[i][0] > prev) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	723 if (first_active < 0)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	724 first_active = i;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	725 prev = c->ctlpoint[i][0];
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	726 ++num_active_ctlpoints;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	727 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	728
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	729 /* handle degenerate case: */
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	730 if (num_active_ctlpoints < 2) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	731 if (num_active_ctlpoints > 0)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	732 ry = c->ctlpoint[first_active][1];
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	733 else
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	734 ry = c->min_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	735 if (ry < c->min_y)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	736 ry = c->min_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	737 if (ry > c->max_y)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	738 ry = c->max_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	739 for (x = 0; x < veclen; ++x)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	740 vector[x] = ry;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	741 return;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	742 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	743 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	744
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	745 switch (c->curve_type) {
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	746 case GTK_CURVE_TYPE_SPLINE:
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	747 mem = g_malloc(3 * num_active_ctlpoints * sizeof(gfloat));
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	748 xv = mem;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	749 yv = mem + num_active_ctlpoints;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	750 y2v = mem + 2 * num_active_ctlpoints;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	751
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	752 prev = min_x - 1.0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	753 for (i = dst = 0; i < c->num_ctlpoints; ++i)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	754 if (c->ctlpoint[i][0] > prev) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	755 prev = c->ctlpoint[i][0];
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	756 xv[dst] = c->ctlpoint[i][0];
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	757 yv[dst] = c->ctlpoint[i][1];
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	758 ++dst;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	759 }
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	760
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	761 spline_solve(num_active_ctlpoints, xv, yv, y2v);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	762
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	763 rx = min_x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	764 dx = (c->max_x - min_x) / (veclen - 1);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	765 for (x = 0; x < veclen; ++x, rx += dx) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	766 ry = spline_eval(num_active_ctlpoints, xv, yv, y2v, rx);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	767 if (ry < c->min_y)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	768 ry = c->min_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	769 if (ry > c->max_y)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	770 ry = c->max_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	771 vector[x] = ry;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	772 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	773
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	774 g_free(mem);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	775 break;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	776
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	777 case GTK_CURVE_TYPE_LINEAR:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	778 dx = (c->max_x - min_x) / (veclen - 1);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	779 rx = min_x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	780 ry = c->min_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	781 dy = 0.0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	782 i = first_active;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	783 for (x = 0; x < veclen; ++x, rx += dx) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	784 if (rx >= c->ctlpoint[i][0]) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	785 if (rx > c->ctlpoint[i][0])
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	786 ry = c->min_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	787 dy = 0.0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	788 next = i + 1;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	789 while (next < c->num_ctlpoints && c->ctlpoint[next][0] <= c->ctlpoint[i][0])
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	790 ++next;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	791 if (next < c->num_ctlpoints) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	792 delta_x = c->ctlpoint[next][0] - c->ctlpoint[i][0];
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	793 dy = ((c->ctlpoint[next][1] - c->ctlpoint[i][1])
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	794 / delta_x);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	795 dy *= dx;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	796 ry = c->ctlpoint[i][1];
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	797 i = next;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	798 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	799 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	800 vector[x] = ry;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	801 ry += dy;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	802 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	803 break;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	804
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	805 case GTK_CURVE_TYPE_FREE:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	806 if (c->point) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	807 rx = 0.0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	808 dx = c->num_points / (double) veclen;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	809 for (x = 0; x < veclen; ++x, rx += dx)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	810 vector[x] = unproject(RADIUS + c->height - c->point[(int) rx].y,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	811 c->min_y, c->max_y, c->height);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	812 } else
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	813 memset(vector, 0, veclen * sizeof(vector[0]));
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	814 break;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	815 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	816 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	817
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	818 GtkWidget *gtk_curve_new(void)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	819 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	820 return gtk_type_new(gtk_curve_get_type());
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	821 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	822
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	823 static void gtk_curve_finalize(GtkObject * object)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	824 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	825 GtkCurve *curve;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	826
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	827 g_return_if_fail(object != NULL);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	828 g_return_if_fail(GTK_IS_CURVE(object));
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	829
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	830 curve = GTK_CURVE(object);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	831 if (curve->pixmap)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	832 gdk_pixmap_unref(curve->pixmap);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	833 if (curve->point)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	834 g_free(curve->point);
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	835 if (curve->ctlpoint)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	836 g_free(curve->ctlpoint);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	837
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	838 (*GTK_OBJECT_CLASS(parent_class)->finalize) (object);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	839 }

Mercurial > hg > xmms-sid

annotate src/xs_curve.c @ 359:b1a858b8cb1a