32 |
#include <cairo.h> |
#include <cairo.h> |
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34 |
#include "osm-gps-map.h" |
#include "osm-gps-map.h" |
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#include "converter.h" |
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#include "osm-gps-map-osd-classic.h" |
#include "osm-gps-map-osd-classic.h" |
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|
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//the osd controls |
//the osd controls |
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#endif |
#endif |
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} controls; |
} controls; |
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#ifdef OSD_BALLOON |
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//a balloon with additional info |
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struct { |
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cairo_surface_t *surface; |
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float lat, lon; |
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gboolean valid; |
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OsmGpsMapRect_t rect; |
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/* function called to have the user app draw the contents */ |
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OsmGpsMapBalloonCallback cb; |
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gpointer data; |
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} balloon; |
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#endif |
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64 |
#ifdef OSD_SCALE |
#ifdef OSD_SCALE |
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struct { |
struct { |
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cairo_surface_t *surface; |
cairo_surface_t *surface; |
90 |
gint shift, dir, count; |
gint shift, dir, count; |
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gint handler_id; |
gint handler_id; |
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gint width, height; |
gint width, height; |
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gboolean rendered; |
94 |
} source_sel; |
} source_sel; |
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#endif |
#endif |
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97 |
} osd_priv_t; |
} osd_priv_t; |
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#ifdef OSD_BALLOON |
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/* most visual effects are hardcoded by now, but may be made */ |
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/* available via properties later */ |
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#ifndef BALLOON_AREA_WIDTH |
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#define BALLOON_AREA_WIDTH 290 |
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#endif |
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#ifndef BALLOON_AREA_HEIGHT |
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#define BALLOON_AREA_HEIGHT 75 |
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#endif |
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#ifndef BALLOON_CORNER_RADIUS |
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#define BALLOON_CORNER_RADIUS 10 |
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#endif |
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#define BALLOON_BORDER (BALLOON_CORNER_RADIUS/2) |
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#define BALLOON_WIDTH (BALLOON_AREA_WIDTH + 2 * BALLOON_BORDER) |
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#define BALLOON_HEIGHT (BALLOON_AREA_HEIGHT + 2 * BALLOON_BORDER) |
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#define BALLOON_TRANSPARENCY 0.8 |
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#define POINTER_HEIGHT 20 |
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#define POINTER_FOOT_WIDTH 20 |
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#define POINTER_OFFSET (BALLOON_CORNER_RADIUS*3/4) |
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#define BALLOON_SHADOW (BALLOON_CORNER_RADIUS/2) |
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#define BALLOON_SHADOW_TRANSPARENCY 0.2 |
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#define CLOSE_BUTTON_RADIUS (BALLOON_CORNER_RADIUS) |
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/* draw the bubble shape. this is used twice, once for the shape and once */ |
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/* for the shadow */ |
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static void |
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osm_gps_map_draw_balloon_shape (cairo_t *cr, int x0, int y0, int x1, int y1, |
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gboolean bottom, int px, int py, int px0, int px1) { |
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cairo_move_to (cr, x0, y0 + BALLOON_CORNER_RADIUS); |
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cairo_arc (cr, x0 + BALLOON_CORNER_RADIUS, y0 + BALLOON_CORNER_RADIUS, |
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BALLOON_CORNER_RADIUS, -M_PI, -M_PI/2); |
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if(!bottom) { |
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/* insert top pointer */ |
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cairo_line_to (cr, px1, y0); |
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cairo_line_to (cr, px, py); |
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cairo_line_to (cr, px0, y0); |
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} |
140 |
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141 |
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cairo_line_to (cr, x1 - BALLOON_CORNER_RADIUS, y0); |
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cairo_arc (cr, x1 - BALLOON_CORNER_RADIUS, y0 + BALLOON_CORNER_RADIUS, |
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BALLOON_CORNER_RADIUS, -M_PI/2, 0); |
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cairo_line_to (cr, x1 , y1 - BALLOON_CORNER_RADIUS); |
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cairo_arc (cr, x1 - BALLOON_CORNER_RADIUS, y1 - BALLOON_CORNER_RADIUS, |
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BALLOON_CORNER_RADIUS, 0, M_PI/2); |
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if(bottom) { |
148 |
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/* insert bottom pointer */ |
149 |
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cairo_line_to (cr, px0, y1); |
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cairo_line_to (cr, px, py); |
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cairo_line_to (cr, px1, y1); |
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} |
153 |
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154 |
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cairo_line_to (cr, x0 + BALLOON_CORNER_RADIUS, y1); |
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cairo_arc (cr, x0 + BALLOON_CORNER_RADIUS, y1 - BALLOON_CORNER_RADIUS, |
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BALLOON_CORNER_RADIUS, M_PI/2, M_PI); |
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cairo_close_path (cr); |
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} |
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161 |
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/* xyz */ |
162 |
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163 |
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static void |
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osd_render_balloon(osm_gps_map_osd_t *osd) { |
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osd_priv_t *priv = (osd_priv_t*)osd->priv; |
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167 |
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/* get zoom */ |
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gint zoom; |
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g_object_get(OSM_GPS_MAP(osd->widget), "zoom", &zoom, NULL); |
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|
171 |
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/* ------- convert given coordinate into screen position --------- */ |
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gint x0, y0; |
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osm_gps_map_geographic_to_screen (OSM_GPS_MAP(osd->widget), |
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priv->balloon.lat, priv->balloon.lon, |
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&x0, &y0); |
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/* check position of this relative to screen center to determine */ |
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/* pointer direction ... */ |
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int pointer_x = x0, pointer_x0, pointer_x1; |
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int pointer_y = y0; |
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182 |
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/* ... and calculate position */ |
183 |
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if(x0 > osd->widget->allocation.width/2) { |
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x0 += POINTER_OFFSET; |
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pointer_x0 = pointer_x - (BALLOON_CORNER_RADIUS - POINTER_OFFSET); |
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pointer_x1 = pointer_x0 - POINTER_FOOT_WIDTH; |
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} else { |
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x0 -= POINTER_OFFSET; |
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pointer_x1 = pointer_x + (BALLOON_CORNER_RADIUS - POINTER_OFFSET); |
190 |
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pointer_x0 = pointer_x1 + POINTER_FOOT_WIDTH; |
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} |
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193 |
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gboolean bottom = FALSE; |
194 |
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if(y0 > osd->widget->allocation.height/2) { |
195 |
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bottom = TRUE; |
196 |
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y0 -= BALLOON_HEIGHT + POINTER_HEIGHT; |
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} else |
198 |
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y0 += POINTER_HEIGHT; |
199 |
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|
200 |
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/* calculate bottom/right of box */ |
201 |
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int x1 = x0 + BALLOON_WIDTH, y1 = y0 + BALLOON_HEIGHT; |
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|
203 |
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/* save balloon screen coordinates for later use */ |
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priv->balloon.rect.x = x0 + BALLOON_BORDER; |
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priv->balloon.rect.y = y0 + BALLOON_BORDER; |
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priv->balloon.rect.w = x1 - x0 - 2*BALLOON_BORDER; |
207 |
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priv->balloon.rect.h = y1 - y0 - 2*BALLOON_BORDER; |
208 |
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|
209 |
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cairo_t *cr = cairo_create(priv->balloon.surface); |
210 |
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|
211 |
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/* --------- draw shadow --------------- */ |
212 |
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osm_gps_map_draw_balloon_shape (cr, |
213 |
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x0 + BALLOON_SHADOW, y0 + BALLOON_SHADOW, |
214 |
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x1 + BALLOON_SHADOW, y1 + BALLOON_SHADOW, |
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bottom, pointer_x, pointer_y, |
216 |
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pointer_x0 + BALLOON_SHADOW, pointer_x1 + BALLOON_SHADOW); |
217 |
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|
218 |
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cairo_set_source_rgba (cr, 0, 0, 0, BALLOON_SHADOW_TRANSPARENCY); |
219 |
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cairo_fill_preserve (cr); |
220 |
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cairo_set_source_rgba (cr, 1, 0, 0, 1.0); |
221 |
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cairo_set_line_width (cr, 0); |
222 |
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cairo_stroke (cr); |
223 |
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|
224 |
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/* --------- draw main shape ----------- */ |
225 |
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osm_gps_map_draw_balloon_shape (cr, x0, y0, x1, y1, |
226 |
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bottom, pointer_x, pointer_y, pointer_x0, pointer_x1); |
227 |
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|
228 |
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cairo_set_source_rgba (cr, 1, 1, 1, BALLOON_TRANSPARENCY); |
229 |
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cairo_fill_preserve (cr); |
230 |
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cairo_set_source_rgba (cr, 0, 0, 0, BALLOON_TRANSPARENCY); |
231 |
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cairo_set_line_width (cr, 1); |
232 |
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cairo_stroke (cr); |
233 |
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234 |
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235 |
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/* ---------- draw close button --------- */ |
236 |
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237 |
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int cx = x1 - BALLOON_BORDER - CLOSE_BUTTON_RADIUS; |
238 |
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int cy = y0 + BALLOON_BORDER + CLOSE_BUTTON_RADIUS; |
239 |
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int crad = CLOSE_BUTTON_RADIUS; |
240 |
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|
241 |
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cairo_arc (cr, cx, cy, crad, 0, 2 * M_PI); |
242 |
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cairo_set_source_rgba (cr, 0.8, 0, 0, 1.0); |
243 |
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cairo_fill_preserve (cr); |
244 |
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cairo_set_source_rgba (cr, 0.3, 0, 0, 1.0); |
245 |
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cairo_set_line_width (cr, 2); |
246 |
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cairo_stroke(cr); |
247 |
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248 |
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cairo_set_source_rgba (cr, 1, 1, 1, 1.0); |
249 |
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cairo_set_line_width (cr, BALLOON_CORNER_RADIUS/3.3); |
250 |
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cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); |
251 |
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cairo_move_to (cr, cx - crad/2, cy - crad/2); |
252 |
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cairo_line_to (cr, cx + crad/2, cy + crad/2); |
253 |
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cairo_stroke (cr); |
254 |
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cairo_move_to (cr, cx + crad/2, cy - crad/2); |
255 |
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cairo_line_to (cr, cx - crad/2, cy + crad/2); |
256 |
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cairo_stroke (cr); |
257 |
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258 |
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if (priv->balloon.cb) { |
259 |
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/* clip in case application tries to draw in */ |
260 |
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/* exceed of the balloon */ |
261 |
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cairo_rectangle (cr, priv->balloon.rect.x, priv->balloon.rect.y, |
262 |
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priv->balloon.rect.w, priv->balloon.rect.h); |
263 |
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cairo_clip (cr); |
264 |
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cairo_new_path (cr); /* current path is not |
265 |
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consumed by cairo_clip() */ |
266 |
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|
267 |
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priv->balloon.cb(cr, &priv->balloon.rect, priv->balloon.data); |
268 |
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} |
269 |
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|
270 |
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cairo_destroy(cr); |
271 |
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} |
272 |
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273 |
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#if 0 |
274 |
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/* the user clicked into the balloons main area. handle this */ |
275 |
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static void |
276 |
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osm_gps_map_handle_balloon_click(OsmGpsMap *map, gint x, gint y) |
277 |
|
{ |
278 |
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OsmGpsMapPrivate *priv = map->priv; |
279 |
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|
280 |
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if (!priv->balloon.valid) |
281 |
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return; |
282 |
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|
283 |
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/* check if the close button was clicked */ |
284 |
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if ((x > priv->balloon.rect.w - 2*CLOSE_BUTTON_RADIUS) && |
285 |
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(x < priv->balloon.rect.w) && |
286 |
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(y > 0) && (y < 2*CLOSE_BUTTON_RADIUS)) { |
287 |
|
|
288 |
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priv->balloon.valid = FALSE; |
289 |
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osm_gps_map_map_redraw_idle(map); |
290 |
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} |
291 |
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} |
292 |
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|
293 |
|
/* return true if balloon is being displayed and if */ |
294 |
|
/* the given coordinate is within this balloon */ |
295 |
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static gboolean |
296 |
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osm_gps_map_in_balloon(OsmGpsMapPrivate *priv, gint x, gint y) |
297 |
|
{ |
298 |
|
return (priv->balloon.valid && |
299 |
|
(x > priv->balloon.rect.x) && |
300 |
|
(x < priv->balloon.rect.x + priv->balloon.rect.w) && |
301 |
|
(y > priv->balloon.rect.y) && |
302 |
|
(y < priv->balloon.rect.y + priv->balloon.rect.h)); |
303 |
|
} |
304 |
|
|
305 |
|
#if 0 |
306 |
|
/* don't drag if the user clicked within the balloon */ |
307 |
|
if (osm_gps_map_in_balloon(priv, |
308 |
|
event->x + EXTRA_BORDER, |
309 |
|
event->y + EXTRA_BORDER)) |
310 |
|
{ |
311 |
|
priv->drag_counter = -1; |
312 |
|
return FALSE; |
313 |
|
} |
314 |
|
|
315 |
|
#ifdef ENABLE_BALLOON |
316 |
|
/* released inside the balloon? */ |
317 |
|
if (osm_gps_map_in_balloon(priv, |
318 |
|
event->x + EXTRA_BORDER, |
319 |
|
event->y + EXTRA_BORDER)) |
320 |
|
{ |
321 |
|
osm_gps_map_handle_balloon_click(OSM_GPS_MAP(widget), |
322 |
|
event->x - priv->balloon.rect.x + EXTRA_BORDER, |
323 |
|
event->y - priv->balloon.rect.y + EXTRA_BORDER); |
324 |
|
} |
325 |
|
#endif |
326 |
|
|
327 |
|
#endif |
328 |
|
|
329 |
|
void |
330 |
|
osm_gps_map_draw_balloon (OsmGpsMap *map, float latitude, float longitude, |
331 |
|
OsmGpsMapBalloonCallback cb, gpointer data) |
332 |
|
{ |
333 |
|
OsmGpsMapPrivate *priv; |
334 |
|
|
335 |
|
/* remove and previously installed balloon */ |
336 |
|
osm_gps_map_clear_balloon (map); |
337 |
|
|
338 |
|
g_return_if_fail (OSM_IS_GPS_MAP (map)); |
339 |
|
priv = map->priv; |
340 |
|
|
341 |
|
priv->balloon.lat = latitude; |
342 |
|
priv->balloon.lon = longitude; |
343 |
|
priv->balloon.valid = TRUE; |
344 |
|
|
345 |
|
priv->balloon.cb = cb; |
346 |
|
priv->balloon.data = data; |
347 |
|
|
348 |
|
// this redraws the map |
349 |
|
osm_gps_map_map_redraw_idle(map); |
350 |
|
} |
351 |
|
|
352 |
|
void |
353 |
|
osm_gps_map_clear_balloon (OsmGpsMap *map) |
354 |
|
{ |
355 |
|
OsmGpsMapPrivate *priv; |
356 |
|
|
357 |
|
g_return_if_fail (OSM_IS_GPS_MAP (map)); |
358 |
|
priv = map->priv; |
359 |
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|
360 |
|
priv->balloon.valid = FALSE; |
361 |
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|
362 |
|
osm_gps_map_map_redraw_idle(map); |
363 |
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} |
364 |
|
#endif |
365 |
|
|
366 |
|
void osm_gps_map_osd_clear_balloon (OsmGpsMap *map) { |
367 |
|
printf("request to clear balloon\n"); |
368 |
|
} |
369 |
|
|
370 |
|
void |
371 |
|
osm_gps_map_osd_draw_balloon (OsmGpsMap *map, float latitude, float longitude, |
372 |
|
OsmGpsMapBalloonCallback cb, gpointer data) |
373 |
|
{ |
374 |
|
printf("request to draw balloon at %f %f\n", latitude, longitude); |
375 |
|
} |
376 |
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|
377 |
|
#endif // OSD_BALLOON |
378 |
|
|
379 |
/* position and extent of bounding box */ |
/* position and extent of bounding box */ |
380 |
#ifndef OSD_X |
#ifndef OSD_X |
381 |
#define OSD_X (10) |
#define OSD_X (10) |
713 |
} |
} |
714 |
|
|
715 |
static void |
static void |
716 |
osd_render_source_sel(osm_gps_map_osd_t *osd) { |
osd_render_source_sel(osm_gps_map_osd_t *osd, gboolean force_rerender) { |
717 |
osd_priv_t *priv = (osd_priv_t*)osd->priv; |
osd_priv_t *priv = (osd_priv_t*)osd->priv; |
718 |
|
|
719 |
|
if(priv->source_sel.rendered && !force_rerender) |
720 |
|
return; |
721 |
|
|
722 |
|
priv->source_sel.rendered = TRUE; |
723 |
|
|
724 |
#ifndef OSD_COLOR |
#ifndef OSD_COLOR |
725 |
GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL]; |
GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL]; |
726 |
GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL]; |
GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL]; |
805 |
priv->source_sel.surface = |
priv->source_sel.surface = |
806 |
cairo_image_surface_create(CAIRO_FORMAT_ARGB32, w+2, h+2); |
cairo_image_surface_create(CAIRO_FORMAT_ARGB32, w+2, h+2); |
807 |
|
|
808 |
osd_render_source_sel(osd); |
osd_render_source_sel(osd, TRUE); |
809 |
} |
} |
810 |
|
|
811 |
#define OSD_HZ 15 |
#define OSD_HZ 15 |
837 |
|
|
838 |
/* count runs linearly from 0 to 1000, map this nicely onto a position */ |
/* count runs linearly from 0 to 1000, map this nicely onto a position */ |
839 |
|
|
840 |
/* nicer sinoid mapping */ |
/* nice sinoid mapping */ |
841 |
float m = 0.5-cos(priv->source_sel.count * M_PI / 1000.0)/2; |
float m = 0.5-cos(priv->source_sel.count * M_PI / 1000.0)/2; |
842 |
priv->source_sel.shift = (osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X) + |
priv->source_sel.shift = |
843 |
|
(osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X) + |
844 |
m * diff; |
m * diff; |
845 |
|
|
846 |
|
/* make sure the screen is updated */ |
847 |
osm_gps_map_repaint(OSM_GPS_MAP(osd->widget)); |
osm_gps_map_repaint(OSM_GPS_MAP(osd->widget)); |
848 |
|
|
849 |
|
/* stop animation if done */ |
850 |
if(done) |
if(done) |
851 |
priv->source_sel.handler_id = 0; |
priv->source_sel.handler_id = 0; |
852 |
|
|
863 |
if(priv->source_sel.handler_id) |
if(priv->source_sel.handler_id) |
864 |
return; |
return; |
865 |
|
|
866 |
/* expand immediately, collapse is handle at the end of the collapse animation */ |
/* expand immediately, collapse is handle at the end of the */ |
867 |
|
/* collapse animation */ |
868 |
if(!priv->source_sel.expanded) { |
if(!priv->source_sel.expanded) { |
869 |
priv->source_sel.expanded = TRUE; |
priv->source_sel.expanded = TRUE; |
870 |
osd_source_reallocate(osd); |
osd_source_reallocate(osd); |
874 |
priv->source_sel.dir = -1000/OSD_HZ; |
priv->source_sel.dir = -1000/OSD_HZ; |
875 |
} else { |
} else { |
876 |
priv->source_sel.count = 0; |
priv->source_sel.count = 0; |
877 |
priv->source_sel.shift = osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X; |
priv->source_sel.shift = osd->widget->allocation.width - |
878 |
|
OSD_S_EXP_W + OSD_S_X; |
879 |
priv->source_sel.dir = +1000/OSD_HZ; |
priv->source_sel.dir = +1000/OSD_HZ; |
880 |
} |
} |
881 |
|
|
882 |
priv->source_sel.handler_id = gtk_timeout_add(OSD_TIME/OSD_HZ, osd_source_animate, osd); |
/* start timer to handle animation */ |
883 |
|
priv->source_sel.handler_id = gtk_timeout_add(OSD_TIME/OSD_HZ, |
884 |
|
osd_source_animate, osd); |
885 |
} |
} |
886 |
|
|
887 |
/* check if the user clicked inside the source selection area */ |
/* check if the user clicked inside the source selection area */ |
938 |
old != y) { |
old != y) { |
939 |
g_object_set(osd->widget, "map-source", y, NULL); |
g_object_set(osd->widget, "map-source", y, NULL); |
940 |
|
|
941 |
osd_render_source_sel(osd); |
osd_render_source_sel(osd, TRUE); |
942 |
osm_gps_map_repaint(OSM_GPS_MAP(osd->widget)); |
osm_gps_map_repaint(OSM_GPS_MAP(osd->widget)); |
943 |
} |
} |
944 |
|
|
1142 |
priv->coordinates.lat = lat; |
priv->coordinates.lat = lat; |
1143 |
priv->coordinates.lon = lon; |
priv->coordinates.lon = lon; |
1144 |
|
|
1145 |
/* first fill with light transparency */ |
/* first fill with transparency */ |
1146 |
cairo_t *cr = cairo_create(priv->coordinates.surface); |
cairo_t *cr = cairo_create(priv->coordinates.surface); |
1147 |
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
1148 |
cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 0.5); |
// cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 0.5); |
1149 |
|
cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0); |
1150 |
cairo_paint(cr); |
cairo_paint(cr); |
1151 |
cairo_set_operator(cr, CAIRO_OPERATOR_OVER); |
cairo_set_operator(cr, CAIRO_OPERATOR_OVER); |
1152 |
|
|
1501 |
static void |
static void |
1502 |
osd_render(osm_gps_map_osd_t *osd) |
osd_render(osm_gps_map_osd_t *osd) |
1503 |
{ |
{ |
1504 |
|
/* this function is actually called pretty often since the */ |
1505 |
|
/* OSD contents may have changed (due to a coordinate/zoom change). */ |
1506 |
|
/* The different OSD parts have to make sure that they don't */ |
1507 |
|
/* render unneccessarily often and thus waste CPU power */ |
1508 |
|
|
1509 |
osd_render_controls(osd); |
osd_render_controls(osd); |
1510 |
|
|
1511 |
#ifdef OSD_SOURCE_SEL |
#ifdef OSD_SOURCE_SEL |
1512 |
osd_render_source_sel(osd); |
osd_render_source_sel(osd, FALSE); |
1513 |
#endif |
#endif |
1514 |
|
|
1515 |
#ifdef OSD_SCALE |
#ifdef OSD_SCALE |
1547 |
priv->source_sel.surface = |
priv->source_sel.surface = |
1548 |
cairo_image_surface_create(CAIRO_FORMAT_ARGB32, |
cairo_image_surface_create(CAIRO_FORMAT_ARGB32, |
1549 |
OSD_S_W+2, OSD_S_H+2); |
OSD_S_W+2, OSD_S_H+2); |
1550 |
|
priv->source_sel.rendered = FALSE; |
1551 |
#endif |
#endif |
1552 |
|
|
1553 |
#ifdef OSD_SCALE |
#ifdef OSD_SCALE |
1676 |
cairo_surface_destroy(priv->coordinates.surface); |
cairo_surface_destroy(priv->coordinates.surface); |
1677 |
#endif |
#endif |
1678 |
|
|
1679 |
|
#ifdef OSD_BALLOON |
1680 |
|
if (priv->balloon.surface) |
1681 |
|
cairo_surface_destroy(priv->balloon.surface); |
1682 |
|
#endif |
1683 |
|
|
1684 |
g_free(priv); |
g_free(priv); |
1685 |
} |
} |
1686 |
|
|
1716 |
{ |
{ |
1717 |
osd_priv_t *priv = osd_classic.priv = g_new0(osd_priv_t, 1); |
osd_priv_t *priv = osd_classic.priv = g_new0(osd_priv_t, 1); |
1718 |
|
|
1719 |
|
#ifdef OSD_BALLOON |
1720 |
|
priv->balloon.lat = OSM_GPS_MAP_INVALID; |
1721 |
|
priv->balloon.lon = OSM_GPS_MAP_INVALID; |
1722 |
|
#endif |
1723 |
|
|
1724 |
osd_classic.priv = priv; |
osd_classic.priv = priv; |
1725 |
|
|
1726 |
osm_gps_map_register_osd(map, &osd_classic); |
osm_gps_map_register_osd(map, &osd_classic); |