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annotate src/xs_curve.h @ 502:54d86ee98b98

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Alpha/preliminary curve widget code merged.
author Matti Hamalainen <ccr@tnsp.org>
date Sat, 27 Jan 2007 02:52:02 +0000
parents 7e35b6059d79
children fa95d942f226
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1 #ifndef _XS_CURVE_H
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2 #define _XS_CURVE_H
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3
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4 #include <gdk/gdk.h>
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5 #include <gtk/gtkdrawingarea.h>
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6
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7 #ifdef __cplusplus
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8 extern "C" {
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9 #endif
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10
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11
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12 #define XS_TYPE_CURVE (xs_curve_get_type())
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13 #define XS_CURVE(obj) (GTK_CHECK_CAST ((obj), XS_TYPE_CURVE, XSCurve))
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14 #define XS_CURVE_CLASS(luokka) (GTK_CHECK_CLASS_CAST ((luokka), XS_TYPE_CURVE, XSCurveClass))
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15 #define XS_IS_CURVE(obj) (GTK_CHECK_TYPE ((obj), XS_TYPE_CURVE))
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16 #define XS_IS_CURVE_CLASS(luokka) (GTK_CHECK_CLASS_TYPE ((luokka), XS_TYPE_CURVE))
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19 typedef struct _XSCurve XSCurve;
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20 typedef struct _XSCurveClass XSCurveClass;
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21
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22 typedef struct {
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23 gfloat x,y;
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24 } t_xs_point;
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27 struct _XSCurve {
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28 GtkDrawingArea graph;
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30 gint cursor_type;
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31 gfloat min_x;
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32 gfloat max_x;
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33 gfloat min_y;
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34 gfloat max_y;
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35 GdkPixmap *pixmap;
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36 gint height; /* (cached) graph height in pixels */
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37 gint grab_point; /* point currently grabbed */
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38 gint last;
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39
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40 /* control points */
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41 gint num_ctlpoints; /* number of control points */
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42 t_xs_point *ctlpoints; /* array of control points */
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43 };
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45 struct _XSCurveClass {
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46 GtkDrawingAreaClass parent_class;
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47 };
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50 GtkType xs_curve_get_type (void);
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51 GtkWidget* xs_curve_new (void);
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52 void xs_curve_reset (XSCurve *curve);
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53 void xs_curve_set_range (XSCurve *curve,
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54 gfloat min_x, gfloat max_x,
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55 gfloat min_y, gfloat max_y);
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56
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57 #ifdef __cplusplus
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58 }
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59 #endif
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61 #endif /* _XS_CURVE_H */