xmms-sid: src/xs_curve.c annotate

annotate src/xs_curve.c @ 514:982cec405ef0

Cleaned up the drawing function a bit.

author	Matti Hamalainen <ccr@tnsp.org>
date	Mon, 29 Jan 2007 03:26:05 +0000
parents	54d86ee98b98
children	81481e59e195

rev	line source
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	1 #include <stdlib.h>
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	2 #include <string.h>
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	3 #include <math.h>
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	4
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	5 #include <stdio.h>
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	6
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	7 #include "xs_curve.h"
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	8 #include <gtk/gtkdrawingarea.h>
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	9 #include <gtk/gtkmain.h>
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	10 #include <gtk/gtksignal.h>
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	11
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	12
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	13 #define RADIUS 3 /* radius of the control points */
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	14 #define RADIUS2 (RADIUS * 2)
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	15
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	16 #define MIN_DISTANCE 8 /* min distance between control points */
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	17
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	18 #define GRAPH_MASK (GDK_EXPOSURE_MASK \| \
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	19 GDK_POINTER_MOTION_MASK \| \
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	20 GDK_POINTER_MOTION_HINT_MASK \| \
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	21 GDK_ENTER_NOTIFY_MASK \| \
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	22 GDK_BUTTON_PRESS_MASK \| \
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	23 GDK_BUTTON_RELEASE_MASK \| \
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	24 GDK_BUTTON1_MOTION_MASK)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	25
514 982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	26 #define GET_X(i) curve->ctlpoints[i].x
982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	27 #define GET_Y(i) curve->ctlpoints[i].y
982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	28
982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	29
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	30 enum {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	31 ARG_0,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	32 ARG_CURVE_TYPE,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	33 ARG_MIN_X,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	34 ARG_MAX_X,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	35 ARG_MIN_Y,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	36 ARG_MAX_Y
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	37 };
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 static GtkDrawingAreaClass *parent_class = NULL;
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	40
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	41 static void xs_curve_class_init(XSCurveClass * class);
df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	42 static void xs_curve_init(XSCurve * curve);
df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	43 static void xs_curve_set_arg(GtkObject * object, GtkArg * arg, guint arg_id);
df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	44 static void xs_curve_get_arg(GtkObject * object, GtkArg * arg, guint arg_id);
df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	45 static void xs_curve_finalize(GtkObject * object);
df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	46 static gint xs_curve_graph_events(GtkWidget * widget, GdkEvent * event, XSCurve * c);
df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	47 static void xs_curve_size_graph(XSCurve * curve);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	48
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	49
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	50 GtkType xs_curve_get_type(void)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	51 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	52 static GtkType curve_type = 0;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	53
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	54 if (!curve_type) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	55 static const GtkTypeInfo curve_info = {
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	56 "XSCurve",
df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	57 sizeof(XSCurve),
df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	58 sizeof(XSCurveClass),
df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	59 (GtkClassInitFunc) xs_curve_class_init,
df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	60 (GtkObjectInitFunc) xs_curve_init,
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	61 /* reserved_1 */ NULL,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	62 /* reserved_2 */ NULL,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	63 (GtkClassInitFunc) NULL,
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	64 };
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	65
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	66 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	67 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	68 return curve_type;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	69 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	70
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	71
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	72 static void xs_curve_class_init(XSCurveClass *class)
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 GtkObjectClass *object_class;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	75
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	76 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	77
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	78 object_class = (GtkObjectClass *) class;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	79
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	80 object_class->set_arg = xs_curve_set_arg;
df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	81 object_class->get_arg = xs_curve_get_arg;
df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	82 object_class->finalize = xs_curve_finalize;
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	83
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	84 gtk_object_add_arg_type("XSCurve::min_x", GTK_TYPE_FLOAT, GTK_ARG_READWRITE, ARG_MIN_X);
df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	85 gtk_object_add_arg_type("XSCurve::max_x", GTK_TYPE_FLOAT, GTK_ARG_READWRITE, ARG_MAX_X);
df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	86 gtk_object_add_arg_type("XSCurve::min_y", GTK_TYPE_FLOAT, GTK_ARG_READWRITE, ARG_MIN_Y);
df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	87 gtk_object_add_arg_type("XSCurve::max_y", GTK_TYPE_FLOAT, GTK_ARG_READWRITE, ARG_MAX_Y);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	88 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	89
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	90
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	91 static void xs_curve_init(XSCurve *curve)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	92 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	93 gint old_mask;
358 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 curve->pixmap = NULL;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	96 curve->height = 0;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	97 curve->grab_point = -1;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	98
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	99 curve->num_ctlpoints = 0;
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	100 curve->ctlpoints = NULL;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	101
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	102 curve->min_x = 0.0;
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	103 curve->max_x = 2048.0;
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	104 curve->min_y = 0.0;
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	105 curve->max_y = 22000.0;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	106
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	107 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	108 gtk_widget_set_events(GTK_WIDGET(curve), old_mask \| GRAPH_MASK);
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	109 gtk_signal_connect(GTK_OBJECT(curve), "event", (GtkSignalFunc) xs_curve_graph_events, curve);
df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	110 xs_curve_size_graph(curve);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	111 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	112
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	113
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	114 static void xs_curve_set_arg(GtkObject object, GtkArg arg, guint arg_id)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	115 {
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	116 XSCurve *curve = XS_CURVE(object);
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	117
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	118 switch (arg_id) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	119 case ARG_MIN_X:
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	120 xs_curve_set_range(curve, GTK_VALUE_FLOAT(*arg), curve->max_x, curve->min_y, curve->max_y);
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	121 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	122 case ARG_MAX_X:
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	123 xs_curve_set_range(curve, curve->min_x, GTK_VALUE_FLOAT(*arg), curve->min_y, curve->max_y);
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	124 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	125 case ARG_MIN_Y:
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	126 xs_curve_set_range(curve, curve->min_x, curve->max_x, GTK_VALUE_FLOAT(*arg), curve->max_y);
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	127 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	128 case ARG_MAX_Y:
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	129 xs_curve_set_range(curve, curve->min_x, curve->max_x, curve->min_y, GTK_VALUE_FLOAT(*arg));
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	130 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	131 }
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	132 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	133
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	134
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	135 static void xs_curve_get_arg(GtkObject object, GtkArg arg, guint arg_id)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	136 {
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	137 XSCurve *curve = XS_CURVE(object);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	138
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	139 switch (arg_id) {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	140 case ARG_MIN_X:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	141 GTK_VALUE_FLOAT(*arg) = curve->min_x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	142 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	143 case ARG_MAX_X:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	144 GTK_VALUE_FLOAT(*arg) = curve->max_x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	145 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	146 case ARG_MIN_Y:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	147 GTK_VALUE_FLOAT(*arg) = curve->min_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	148 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	149 case ARG_MAX_Y:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	150 GTK_VALUE_FLOAT(*arg) = curve->max_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	151 break;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	152 default:
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	153 arg->type = GTK_TYPE_INVALID;
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 }
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	156 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	157
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	158
374 58079c6180a0 More removal of original curve code. Matti Hamalainen <ccr@tnsp.org> parents: 370 diff changeset	159 static int xs_project(gfloat value, gfloat min, gfloat max, int norm)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	160 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	161 return (norm - 1) * ((value - min) / (max - min)) + 0.5;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	162 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	163
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	164
374 58079c6180a0 More removal of original curve code. Matti Hamalainen <ccr@tnsp.org> parents: 370 diff changeset	165 static gfloat xs_unproject(gint value, gfloat min, gfloat max, int norm)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	166 {
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	167 return value / (gfloat) (norm - 1) * (max - min) + min;
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
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	170
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	171 static inline void xs_cubic_coeff(gfloat x1, gfloat y1,
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	172 gfloat x2, gfloat y2,
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	173 gfloat k1, gfloat k2,
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	174 gfloat a, gfloat b,
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	175 gfloat c, gfloat d)
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	176 {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	177 gfloat dx = x2 - x1, dy = y2 - y1;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	178
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	179 a = ((k1 + k2) - 2 dy / dx) / (dx * dx);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	180 b = ((k2 - k1) / dx - 3 (x1 + x2) * (*a)) / 2;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	181 c = k1 - (3 x1 * (a) + 2 (b)) x1;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	182 d = y1 - ((x1 (a) + (b)) * x1 + (c)) x1;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	183 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	184
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	185
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	186 static void xs_curve_draw(XSCurve *curve, gint width, gint height)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	187 {
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	188 gfloat res = 10.0f;
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	189 GtkStateType state;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	190 GtkStyle *style;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	191 gint i;
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	192 t_xs_point p0, p1, p2, p3;
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	193
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	194 if (!curve->pixmap)
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	195 return;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	196
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	197 state = GTK_STATE_NORMAL;
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	198 if (!GTK_WIDGET_IS_SENSITIVE(GTK_WIDGET(curve)))
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	199 state = GTK_STATE_INSENSITIVE;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	200
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	201 style = GTK_WIDGET(curve)->style;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	202
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	203 /* Clear the pixmap */
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	204 gtk_paint_flat_box(style, curve->pixmap,
374 58079c6180a0 More removal of original curve code. Matti Hamalainen <ccr@tnsp.org> parents: 370 diff changeset	205 GTK_STATE_NORMAL, GTK_SHADOW_NONE,
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	206 NULL, GTK_WIDGET(curve), "curve_bg",
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	207 0, 0,
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	208 width + RADIUS2,
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	209 height + RADIUS2);
374 58079c6180a0 More removal of original curve code. Matti Hamalainen <ccr@tnsp.org> parents: 370 diff changeset	210
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	211
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	212 /* Draw the grid */
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	213 for (i = 0; i < 5; i++) {
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	214 gdk_draw_line(curve->pixmap, style->dark_gc[state],
374 58079c6180a0 More removal of original curve code. Matti Hamalainen <ccr@tnsp.org> parents: 370 diff changeset	215 RADIUS, i * (height / 4.0) + RADIUS,
58079c6180a0 More removal of original curve code. Matti Hamalainen <ccr@tnsp.org> parents: 370 diff changeset	216 width + RADIUS, i * (height / 4.0) + RADIUS);
58079c6180a0 More removal of original curve code. Matti Hamalainen <ccr@tnsp.org> parents: 370 diff changeset	217
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	218 gdk_draw_line(curve->pixmap, style->dark_gc[state],
374 58079c6180a0 More removal of original curve code. Matti Hamalainen <ccr@tnsp.org> parents: 370 diff changeset	219 i * (width / 4.0) + RADIUS, RADIUS,
58079c6180a0 More removal of original curve code. Matti Hamalainen <ccr@tnsp.org> parents: 370 diff changeset	220 i * (width / 4.0) + RADIUS, height + RADIUS);
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	221 }
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	222
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	223
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	224 /* Draw the spline/curve itself */
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	225 p0 = curve->ctlpoints;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	226 p1 = p0; p1++;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	227 p2 = p1; p2++;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	228 p3 = p2; p3++;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	229
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	230 /* Draw each curve segment */
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	231 fprintf(stderr, "npoints = %d\n", curve->num_ctlpoints);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	232 for (i = 0; i < curve->num_ctlpoints; i++, ++p0, ++p1, ++p2, ++p3) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	233 gfloat k1, k2, a, b, c, d, x;
514 982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	234
982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	235 if (p1->x == p2->x)
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	236 continue;
514 982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	237
982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	238 if (p0->x == p1->x && p2->x == p3->x) {
982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	239 k1 = k2 = (p2->y - p1->y) / (p2->x - p1->x);
982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	240 } else if (p0->x == p1->x) {
982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	241 k2 = (p3->y - p1->y) / (p3->x - p1->x);
982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	242 k1 = (3 * (p2->y - p1->y) / (p2->x - p1->x) - k2) / 2;
982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	243 } else if (p2->x == p3->x) {
982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	244 k1 = (p2->y - p0->y) / (p2->x - p0->x);
982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	245 k2 = (3 * (p2->y - p1->y) / (p2->x - p1->x) - k1) / 2;
982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	246 } else {
982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	247 k1 = (p2->y - p0->y) / (p2->x - p0->x);
982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	248 k2 = (p3->y - p1->y) / (p3->x - p1->x);
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	249 }
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	250
514 982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	251 xs_cubic_coeff(p1->x, p1->y, p2->x, p2->y, k1, k2, &a, &b, &c, &d);
982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	252 fprintf(stderr, "--seg[%1.3f, %1.3f]=>[%1.3f, %1.3f]--\n", p1->x, p1->y, p2->x, p2->y);
982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	253 for (x = p1->x; x <= p2->x; x += res) {
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	254 gfloat y = ((a * x + b) * x + c) * x + d;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	255 gint qx, qy;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	256 qx = RADIUS + xs_project(x, curve->min_x, curve->max_x, width);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	257 qy = RADIUS + xs_project(y, curve->min_y, curve->max_y, height);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	258 fprintf(stderr, "[%1.3f, %1.3f] -> %d, %d\n", x, y, qx, qy);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	259 gdk_draw_point(curve->pixmap, style->fg_gc[state],
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	260 RADIUS + xs_project(x, curve->min_x, curve->max_x, width),
514 982cec405ef0 Cleaned up the drawing function a bit. Matti Hamalainen <ccr@tnsp.org> parents: 502 diff changeset	261 RADIUS + xs_project(y, curve->min_y, curve->max_y, height));
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	262
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	263 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	264 fprintf(stderr, "-------\n");
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	265 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	266
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	267 /* Draw control points */
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	268 for (i = 0; i < curve->num_ctlpoints; ++i) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	269 gint x, y;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	270
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	271 if (GET_X(i) < curve->min_x \|\| GET_Y(i) < curve->min_y \|\|
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	272 GET_X(i) >= curve->max_x \|\| GET_Y(i) >= curve->max_y)
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	273 continue;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	274
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	275 x = xs_project(GET_X(i), curve->min_x, curve->max_x, width);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	276 y = xs_project(GET_Y(i), curve->min_y, curve->max_y, height);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	277
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	278 gdk_draw_arc(curve->pixmap, style->fg_gc[state], TRUE,
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	279 x, y, RADIUS2, RADIUS2, 0, 360 * 64);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	280 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	281
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	282 /* Draw pixmap in the widget */
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	283 gdk_draw_pixmap(GTK_WIDGET(curve)->window,
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	284 style->fg_gc[state], curve->pixmap,
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	285 0, 0, 0, 0,
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	286 width + RADIUS2,
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	287 height + RADIUS2);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	288 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	289
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	290
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	291 static gint xs_curve_graph_events(GtkWidget widget, GdkEvent event, XSCurve *curve)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	292 {
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	293 GdkCursorType new_type = curve->cursor_type;
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	294 GdkEventButton *bevent;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	295 GdkEventMotion *mevent;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	296 GtkWidget *w;
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	297 gint i, width, height, x, y, tx, ty, cx, closest_point = 0, min_x;
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	298 guint distance;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	299
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	300 w = GTK_WIDGET(curve);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	301 width = w->allocation.width - RADIUS2;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	302 height = w->allocation.height - RADIUS2;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	303
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	304 if ((width < 0) \|\| (height < 0))
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	305 return FALSE;
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	306
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	307 /* get the pointer position */
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	308 gdk_window_get_pointer(w->window, &tx, &ty, NULL);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	309 x = CLAMP((tx - RADIUS), 0, width - 1);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	310 y = CLAMP((ty - RADIUS), 0, height - 1);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	311
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	312 min_x = curve->min_x;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	313
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	314 distance = ~0U;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	315 for (i = 0; i < curve->num_ctlpoints; ++i) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	316 cx = xs_project(GET_X(i), min_x, curve->max_x, width);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	317 if ((guint) abs(x - cx) < distance) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	318 distance = abs(x - cx);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	319 closest_point = i;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	320 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	321 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	322
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	323 /* Act based on event type */
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	324 switch (event->type) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	325 case GDK_CONFIGURE:
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	326 if (curve->pixmap)
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	327 gdk_pixmap_unref(curve->pixmap);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	328 curve->pixmap = 0;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	329
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	330 /* fall through */
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	331
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	332 case GDK_EXPOSE:
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	333 if (!curve->pixmap) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	334 curve->pixmap = gdk_pixmap_new(w->window,
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	335 w->allocation.width, w->allocation.height, -1);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	336 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	337 xs_curve_draw(curve, width, height);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	338 break;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	339
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	340 case GDK_BUTTON_PRESS:
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	341 gtk_grab_add(widget);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	342
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	343 bevent = (GdkEventButton *) event;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	344 new_type = GDK_TCROSS;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	345
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	346 if (distance > MIN_DISTANCE) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	347 /* insert a new control point */
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	348 if (curve->num_ctlpoints > 0) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	349 cx = xs_project(GET_X(closest_point), min_x, curve->max_x, width);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	350 if (x > cx) closest_point++;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	351 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	352
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	353 curve->num_ctlpoints++;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	354
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	355 curve->ctlpoints = g_realloc(curve->ctlpoints, curve->num_ctlpoints * sizeof(*curve->ctlpoints));
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	356 for (i = curve->num_ctlpoints - 1; i > closest_point; --i) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	357 memcpy(curve->ctlpoints + i, curve->ctlpoints + i - 1, sizeof(*curve->ctlpoints));
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	358 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	359 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	360
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	361 curve->grab_point = closest_point;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	362 GET_X(curve->grab_point) = xs_unproject(x, min_x, curve->max_x, width);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	363 GET_Y(curve->grab_point) = xs_unproject(y, curve->min_y, curve->max_y, height);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	364
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	365 xs_curve_draw(curve, width, height);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	366 break;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	367
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	368 case GDK_BUTTON_RELEASE:
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	369 {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	370 gint src, dst;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	371
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	372 gtk_grab_remove(widget);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	373
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	374 /* delete inactive points: */
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	375 for (src = dst = 0; src < curve->num_ctlpoints; ++src)
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	376 if (GET_X(src) >= min_x) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	377 memcpy(curve->ctlpoints + dst, curve->ctlpoints + src, sizeof(*curve->ctlpoints));
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	378 dst++;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	379 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	380
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	381 if (dst < src) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	382 curve->num_ctlpoints -= (src - dst);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	383 if (curve->num_ctlpoints <= 0) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	384 curve->num_ctlpoints = 1;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	385 GET_X(0) = min_x;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	386 GET_Y(0) = curve->min_y;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	387 xs_curve_draw(curve, width, height);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	388 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	389 curve->ctlpoints = g_realloc(curve->ctlpoints, curve->num_ctlpoints * sizeof(*curve->ctlpoints));
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	390 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	391
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	392 new_type = GDK_FLEUR;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	393 curve->grab_point = -1;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	394 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	395 break;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	396
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	397 case GDK_MOTION_NOTIFY:
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	398 mevent = (GdkEventMotion *) event;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	399
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	400 if (curve->grab_point == -1) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	401 /* if no point is grabbed... */
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	402 if (distance <= MIN_DISTANCE)
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	403 new_type = GDK_FLEUR;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	404 else
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	405 new_type = GDK_TCROSS;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	406 } else {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	407 gint leftbound, rightbound;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	408
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	409 /* drag the grabbed point */
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	410 new_type = GDK_TCROSS;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	411
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	412 leftbound = -MIN_DISTANCE;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	413 if (curve->grab_point > 0) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	414 leftbound = xs_project(
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	415 GET_X(curve->grab_point-1),
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	416 min_x, curve->max_x, width);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	417 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	418
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	419 rightbound = width + RADIUS2 + MIN_DISTANCE;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	420 if (curve->grab_point + 1 < curve->num_ctlpoints) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	421 rightbound = xs_project(
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	422 GET_X(curve->grab_point+1),
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	423 min_x, curve->max_x, width);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	424 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	425
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	426 if ((tx <= leftbound) \|\| (tx >= rightbound) \|\|
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	427 (ty > height + RADIUS2 + MIN_DISTANCE) \|\| (ty < -MIN_DISTANCE)) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	428 GET_X(curve->grab_point) = min_x - 1.0;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	429 } else {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	430 GET_X(curve->grab_point) =
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	431 xs_unproject(x, min_x, curve->max_x, width);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	432 GET_Y(curve->grab_point) =
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	433 xs_unproject(y, curve->min_y, curve->max_y, height);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	434 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	435
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	436 xs_curve_draw(curve, width, height);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	437 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	438
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	439 if (new_type != (GdkCursorType) curve->cursor_type) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	440 GdkCursor *cursor;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	441
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	442 curve->cursor_type = new_type;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	443
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	444 cursor = gdk_cursor_new(curve->cursor_type);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	445 gdk_window_set_cursor(w->window, cursor);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	446 gdk_cursor_destroy(cursor);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	447 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	448 break;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	449
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	450 default:
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	451 break;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	452 }
374 58079c6180a0 More removal of original curve code. Matti Hamalainen <ccr@tnsp.org> parents: 370 diff changeset	453
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	454 return FALSE;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	455 }
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	456
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	457
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	458 static void xs_curve_size_graph(XSCurve *curve)
359 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 gint width, height;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	461 gfloat aspect;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	462
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	463 width = (curve->max_x - curve->min_x) + 1;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	464 height = (curve->max_y - curve->min_y) + 1;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	465 aspect = width / (gfloat) height;
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	466
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	467 if (width > gdk_screen_width() / 4)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	468 width = gdk_screen_width() / 4;
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	469
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	470 if (height > gdk_screen_height() / 4)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	471 height = gdk_screen_height() / 4;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	472
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	473 if (aspect < 1.0)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	474 width = height * aspect;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	475 else
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	476 height = width / aspect;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	477
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	478 gtk_drawing_area_size(GTK_DRAWING_AREA(curve), width + RADIUS2, height + RADIUS2);
359 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
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	481
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	482 void xs_curve_reset(XSCurve *curve)
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	483 {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	484 if (curve->ctlpoints)
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	485 g_free(curve->ctlpoints);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	486
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	487 curve->num_ctlpoints = 4;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	488 curve->ctlpoints = g_malloc(curve->num_ctlpoints * sizeof(curve->ctlpoints[0]));
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	489
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	490 GET_X(0) = curve->min_x;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	491 GET_Y(0) = curve->min_y;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	492
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	493 GET_X(1) = curve->min_x;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	494 GET_Y(1) = curve->min_y;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	495
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	496 GET_X(2) = curve->max_x;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	497 GET_Y(2) = curve->max_y;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	498
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	499 GET_X(3) = curve->max_x;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	500 GET_Y(3) = curve->max_y;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	501
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	502 if (curve->pixmap) {
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	503 gint width, height;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	504
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	505 width = GTK_WIDGET(curve)->allocation.width - RADIUS2;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	506 height = GTK_WIDGET(curve)->allocation.height - RADIUS2;
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	507 xs_curve_draw(curve, width, height);
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	508 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	509 }
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	510
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	511
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	512 void xs_curve_set_range(XSCurve *curve, gfloat min_x, gfloat max_x, gfloat min_y, gfloat max_y)
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	513 {
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	514 curve->min_x = min_x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	515 curve->max_x = max_x;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	516 curve->min_y = min_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	517 curve->max_y = max_y;
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	518
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	519 xs_curve_size_graph(curve);
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	520 xs_curve_reset(curve);
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	521 }
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	522
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	523
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	524 GtkWidget *xs_curve_new(void)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	525 {
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	526 return gtk_type_new(xs_curve_get_type());
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	527 }
4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	528
374 58079c6180a0 More removal of original curve code. Matti Hamalainen <ccr@tnsp.org> parents: 370 diff changeset	529
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	530 static void xs_curve_finalize(GtkObject *object)
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	531 {
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	532 XSCurve *curve;
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	533
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	534 g_return_if_fail(object != NULL);
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	535 g_return_if_fail(XS_IS_CURVE(object));
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	536
370 df6f12a00305 Work on filter curve widget begins, based on GtkCurve widget from Gtk+ 1.2.10. Matti Hamalainen <ccr@tnsp.org> parents: 359 diff changeset	537 curve = XS_CURVE(object);
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	538
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	539 if (curve->pixmap)
b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	540 gdk_pixmap_unref(curve->pixmap);
502 54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	541
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	542 if (curve->ctlpoints)
54d86ee98b98 Alpha/preliminary curve widget code merged. Matti Hamalainen <ccr@tnsp.org> parents: 378 diff changeset	543 g_free(curve->ctlpoints);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	544
359 b1a858b8cb1a Re-indentation all (non-generated) code. Matti Hamalainen <ccr@tnsp.org> parents: 358 diff changeset	545 (*GTK_OBJECT_CLASS(parent_class)->finalize) (object);
358 4f247b19c9ea Add new files Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	546 }
374 58079c6180a0 More removal of original curve code. Matti Hamalainen <ccr@tnsp.org> parents: 370 diff changeset	547

Mercurial > hg > xmms-sid

annotate src/xs_curve.c @ 514:982cec405ef0