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annotate src/xs_curve.h @ 545:425da926d310

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Working on XSCurve widget implementation.
author Matti Hamalainen <ccr@tnsp.org>
date Fri, 23 Feb 2007 05:10:00 +0000
parents fa95d942f226
children b6c7c26569cc
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fa95d942f226 Header cleanup; Moved some types from xmms-sid.h to xs_player.h; Renamed few functions.
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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 /* Macros for type-classing this GtkWidget/object
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12 */
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13 #define XS_TYPE_CURVE (xs_curve_get_type())
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14 #define XS_CURVE(obj) (GTK_CHECK_CAST ((obj), XS_TYPE_CURVE, XSCurve))
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15 #define XS_CURVE_CLASS(luokka) (GTK_CHECK_CLASS_CAST ((luokka), XS_TYPE_CURVE, XSCurveClass))
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16 #define XS_IS_CURVE(obj) (GTK_CHECK_TYPE ((obj), XS_TYPE_CURVE))
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17 #define XS_IS_CURVE_CLASS(luokka) (GTK_CHECK_CLASS_TYPE ((luokka), XS_TYPE_CURVE))
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19
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20 /* Structures
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21 */
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22 typedef struct _XSCurve XSCurve;
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23 typedef struct _XSCurveClass XSCurveClass;
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24
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25 typedef struct {
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26 gfloat x,y;
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27 } t_xs_point;
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28
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29 typedef struct {
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30 gint x, y;
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31 } t_xs_int_point;
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32
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33 struct _XSCurve {
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34 GtkDrawingArea graph;
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35
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36 gint cursor_type;
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37 gfloat min_x;
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38 gfloat max_x;
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39 gfloat min_y;
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40 gfloat max_y;
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41 GdkPixmap *pixmap;
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42 gint height; /* (cached) graph height in pixels */
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43 gint grab_point; /* point currently grabbed */
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44 gint last;
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45
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46 /* control points */
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47 gint nctlpoints; /* number of control points */
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48 t_xs_point *ctlpoints; /* array of control points */
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49 };
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50
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51 struct _XSCurveClass {
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52 GtkDrawingAreaClass parent_class;
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53 };
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56 GtkType xs_curve_get_type (void);
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57 GtkWidget* xs_curve_new (void);
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58 void xs_curve_reset (XSCurve *curve);
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59 void xs_curve_set_range (XSCurve *curve,
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60 gfloat min_x, gfloat min_y,
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61 gfloat max_x, gfloat max_y);
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62 gboolean xs_curve_realloc_data (XSCurve *curve, gint npoints);
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63 void xs_curve_get_data (XSCurve *curve, t_xs_point ***points, gint **npoints);
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64 gboolean xs_curve_set_points (XSCurve *curve, t_xs_int_point *points, gint npoints);
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65 gboolean xs_curve_get_points (XSCurve *curve, t_xs_int_point **points, gint *npoints);
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67 #ifdef __cplusplus
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68 }
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69 #endif
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71 #endif /* XS_CURVE_H */