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1 | /* |
2 | * viking -- GPS Data and Topo Analyzer, Explorer, and Manager | |
3 | * | |
4 | * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | */ | |
21 | ||
22 | #ifndef _VIKING_VIEWPORT_H | |
23 | #define _VIKING_VIEWPORT_H | |
24 | /* Requires <gtk/gtk.h> or glib, and coords.h*/ | |
25 | ||
26 | #include <glib.h> | |
27 | #include <glib-object.h> | |
28 | #include <gtk/gtkdrawingarea.h> | |
29 | ||
30 | G_BEGIN_DECLS | |
31 | ||
32 | #define VIK_VIEWPORT_TYPE (vik_viewport_get_type ()) | |
33 | #define VIK_VIEWPORT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), VIK_VIEWPORT_TYPE, VikViewport)) | |
34 | #define VIK_VIEWPORT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), VIK_VIEWPORT_TYPE, VikViewportClass)) | |
35 | #define IS_VIK_VIEWPORT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), VIK_VIEWPORT_TYPE)) | |
36 | #define IS_VIK_VIEWPORT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), VIK_VIEWPORT_TYPE)) | |
37 | ||
38 | #define VIK_VIEWPORT_MAX_ZOOM 8192.0 | |
39 | #define VIK_VIEWPORT_MIN_ZOOM 0.125 | |
40 | ||
41 | /* used for coord to screen etc, screen to coord */ | |
42 | #define VIK_VIEWPORT_UTM_WRONG_ZONE -9999999 | |
43 | #define VIK_VIEWPORT_OFF_SCREEN_DOUBLE -9999999.9 | |
44 | ||
45 | typedef struct _VikViewport VikViewport; | |
46 | typedef struct _VikViewportClass VikViewportClass; | |
47 | ||
48 | struct _VikViewportClass | |
49 | { | |
50 | GtkDrawingAreaClass drawing_area_class; | |
51 | }; | |
52 | ||
53 | GType vik_viewport_get_type (); | |
54 | ||
55 | VikViewport *vik_viewport_new (); | |
56 | ||
57 | void vik_viewport_configure_manually ( VikViewport *vvp, gint width, guint height ); | |
58 | /* for off-screen viewports */ | |
59 | gboolean vik_viewport_configure ( VikViewport *vp ); | |
60 | ||
61 | ||
62 | void vik_viewport_clear ( VikViewport *vvp ); | |
acaf7113 | 63 | void vik_viewport_draw_scale ( VikViewport *vvp ); |
50a14534 EB |
64 | |
65 | GdkPixmap *vik_viewport_get_pixmap ( VikViewport *vvp ); | |
66 | ||
67 | void vik_viewport_sync ( VikViewport *vvp ); | |
68 | ||
69 | void vik_viewport_set_ympp ( VikViewport *vvp, gdouble ympp ); | |
70 | void vik_viewport_set_xmpp ( VikViewport *vvp, gdouble xmpp ); | |
71 | gdouble vik_viewport_get_ympp ( VikViewport *vvp ); | |
72 | gdouble vik_viewport_get_xmpp ( VikViewport *vvp ); | |
73 | ||
74 | ||
75 | void vik_viewport_set_zoom ( VikViewport *vvp, gdouble mpp ); | |
76 | gdouble vik_viewport_get_zoom ( VikViewport *vvp ); | |
77 | void vik_viewport_zoom_in ( VikViewport *vvp ); | |
78 | void vik_viewport_zoom_out ( VikViewport *vvp ); | |
79 | ||
80 | const VikCoord *vik_viewport_get_center ( VikViewport *vvp ); | |
81 | ||
82 | void vik_viewport_set_center_coord ( VikViewport *vvp, const VikCoord *coord ); | |
83 | void vik_viewport_set_center_screen ( VikViewport *vvp, int x, int y ); | |
84 | void vik_viewport_center_for_zonen ( VikViewport *vvp, struct UTM *center, int zone); | |
85 | gchar vik_viewport_leftmost_zone ( VikViewport *vvp ); | |
86 | gchar vik_viewport_rightmost_zone ( VikViewport *vvp ); | |
87 | ||
88 | void vik_viewport_screen_to_coord ( VikViewport *vvp, int x, int y, VikCoord *coord ); | |
89 | void vik_viewport_coord_to_screen ( VikViewport *vvp, const VikCoord *coord, int *x, int *y ); | |
90 | ||
91 | void vik_viewport_draw_pixbuf_with_alpha ( VikViewport *vvp, GdkPixbuf *pixbuf, gint alpha, | |
92 | gint src_x, gint src_y, gint dest_x, gint dest_y, gint w, gint h ); | |
93 | void vik_viewport_draw_pixbuf ( VikViewport *vvp, GdkPixbuf *pixbuf, gint src_x, gint src_y, | |
94 | gint dest_x, gint dest_y, gint w, gint h ); | |
95 | ||
96 | ||
97 | gint vik_viewport_get_width ( VikViewport *vvp ); | |
98 | gint vik_viewport_get_height ( VikViewport *vvp ); | |
99 | ||
100 | GdkGC *vik_viewport_new_gc ( VikViewport *vvp, const gchar *colorname, gint thickness ); | |
101 | ||
102 | void vik_viewport_draw_line ( VikViewport *vvp, GdkGC *gc, gint x1, gint y1, gint x2, gint y2 ); | |
103 | void vik_viewport_draw_rectangle ( VikViewport *vvp, GdkGC *gc, gboolean filled, gint x1, gint y1, gint x2, gint y2 ); | |
104 | void vik_viewport_draw_string ( VikViewport *vvp, GdkFont *font, GdkGC *gc, gint x1, gint y1, const gchar *string ); | |
105 | GdkGC *vik_viewport_new_gc_from_color ( VikViewport *vvp, GdkColor *color, gint thickness ); | |
106 | void vik_viewport_draw_arc ( VikViewport *vvp, GdkGC *gc, gboolean filled, gint x, gint y, gint width, gint height, gint angle1, gint angle2 ); | |
107 | void vik_viewport_draw_polygon ( VikViewport *vvp, GdkGC *gc, gboolean filled, GdkPoint *points, gint npoints ); | |
108 | ||
109 | void vik_viewport_set_center_utm ( VikViewport *vvp, const struct UTM *utm ); | |
110 | void vik_viewport_set_center_latlon ( VikViewport *vvp, const struct LatLon *ll ); | |
111 | ||
112 | /* you must set drawmode to set coord_mode */ | |
113 | VikCoordMode vik_viewport_get_coord_mode ( const VikViewport *vvp ); | |
114 | ||
115 | gboolean vik_viewport_is_one_zone ( VikViewport *vvp ); | |
116 | ||
117 | void vik_viewport_set_background_color ( VikViewport *vvp, const gchar *color ); | |
118 | /* pointer to static storage -- may change -- use quickly! */ | |
119 | const gchar *vik_viewport_get_background_color ( VikViewport *vvp ); | |
120 | GdkColor *vik_viewport_get_background_gdkcolor ( VikViewport *vvp ); | |
121 | void vik_viewport_set_background_gdkcolor ( VikViewport *vvp, GdkColor * ); | |
122 | ||
123 | void vik_viewport_draw_layout ( VikViewport *vvp, GdkGC *gc, gint x, gint y, PangoLayout *layout ); | |
124 | ||
125 | /* warning: could be slow, don't obsessively use following function. */ | |
126 | void vik_gc_get_fg_color ( GdkGC *gc, GdkColor *dest ); | |
127 | ||
128 | GdkFunction vik_gc_get_function ( GdkGC *gc ); | |
129 | ||
130 | void vik_viewport_pan_sync ( VikViewport *vvp, gint x_off, gint y_off ); | |
131 | ||
132 | typedef enum { VIK_VIEWPORT_DRAWMODE_UTM=0, VIK_VIEWPORT_DRAWMODE_EXPEDIA, | |
133 | VIK_VIEWPORT_DRAWMODE_GOOGLE, VIK_VIEWPORT_DRAWMODE_KH, VIK_VIEWPORT_DRAWMODE_MERCATOR } VikViewportDrawMode; | |
134 | ||
135 | ||
136 | void vik_viewport_set_drawmode ( VikViewport *vvp, VikViewportDrawMode drawmode ); | |
137 | VikViewportDrawMode vik_viewport_get_drawmode ( VikViewport *vvp ); | |
138 | void vik_viewport_corners_for_zonen ( VikViewport *vvp, int zone, VikCoord *ul, VikCoord *br ); | |
139 | ||
140 | ||
141 | G_END_DECLS | |
142 | ||
143 | #endif |