From: Kaj-Michael Lang <milang@tal.org>
Date: Tue, 6 May 2008 13:00:53 +0000 (+0300)
Subject: Map widget:
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=df81704f2f5569786c63c23666bd0c836838657d;p=mapper

Map widget:
- Start to add drawing of paths and points
---

diff --git a/src/gtkmap.c b/src/gtkmap.c
index 14661da..2e59188 100644
--- a/src/gtkmap.c
+++ b/src/gtkmap.c
@@ -82,30 +82,32 @@ struct _GtkMapPriv
 	PangoLayout *scale_layout;
 	PangoFontDescription *scale_font;
 
-	GdkGC *gc_h;
-	GdkGC *gc_w;
-	GdkGC *gc_d;
+	GdkGC *gc_track;
+	GdkGC *gc_route;
+	GdkGC *gc_waypoint;
+	GdkGC *gc_break;
+
+	GdkGC *gc_mark;
+	GdkGC *gc_velvec;
 
 	GdkGC *speed_gc1;
 	GdkGC *speed_gc2;
 	GdkGC *speed_gc;
 
+	/* OpenGL data */
+#ifdef WITH_GL
+	GdkGLConfig* gl_config;
+#endif
+	gboolean gl;
+
 	GdkRectangle scale_rect;
 
 	RepoData *curr_repo;
 
 	GTimer *timer;
 	ImageCache *icache;
-	GList *markers;
 
-	/* OpenGL data */
-#ifdef WITH_GL
-	GdkGLConfig* gl_config;
-#endif
-	gboolean gl;
-
-	GdkGC *gc_mark;
-	GdkGC *gc_velvec;
+	GSList *markers;
 
 	/* Cached Location dot x,y values */
 	gint mark_x1;
@@ -115,7 +117,6 @@ struct _GtkMapPriv
 	GdkRectangle mark_rect;
 
 	GtkMapCenterMode center_mode;
-
 	Point center;
 	Point min_center;
 	Point max_center;
@@ -169,6 +170,11 @@ struct _GtkMapPriv
 
 	guint key_zoom_new;
 	guint key_zoom_timeout_sid;
+
+	/* Paths */
+	GSList *paths;			/* A list with paths to draw (tracks, routes, friends) */
+	Path *current_track;	/* Pointer to main track */
+	Path *current_route;	/* Pointer to main route */
 };
 
 #define tile2grid(tile) ((tile) << 3)
@@ -456,7 +462,7 @@ priv=GTK_MAP_GET_PRIVATE(map);
 tw=GTK_MAP_TILE_SIZE_PIXELS*((width/GTK_MAP_TILE_SIZE_PIXELS)+2);
 th=GTK_MAP_TILE_SIZE_PIXELS*((height/GTK_MAP_TILE_SIZE_PIXELS)+2);
 
-gtk_map_update_buffer_size(GTK_MAP(widget), tw, th);
+gtk_map_update_buffer_size(widget, tw, th);
 if (!priv->buffer) {
 	return;
 }
@@ -510,11 +516,8 @@ g_return_if_fail(requisition != NULL);
 	
 map=GTK_MAP(widget);
 
-g_debug("GTKMAP: Size request");
-
 requisition->width=GTK_MAP_TILE_SIZE_PIXELS/2;
 requisition->height=GTK_MAP_TILE_SIZE_PIXELS/2;
-/* gtk_map_update_size(widget, requisition->width, requisition->height); */
 }
 
 static gboolean
@@ -622,6 +625,30 @@ color.green=0x1000;
 color.blue=0;
 gdk_gc_set_rgb_fg_color(priv->speed_gc2, &color);
 
+priv->gc_track=gdk_gc_new(widget->window);
+color.red=0xffff;
+color.green=0;
+color.blue=0;
+gdk_gc_set_rgb_fg_color(priv->gc_track, &color);
+
+priv->gc_route=gdk_gc_new(widget->window);
+color.red=0;
+color.green=0xffff;
+color.blue=0;
+gdk_gc_set_rgb_fg_color(priv->gc_route, &color);
+
+priv->gc_waypoint=gdk_gc_new(widget->window);
+color.red=0xffff;
+color.green=0xffff;
+color.blue=0;
+gdk_gc_set_rgb_fg_color(priv->gc_waypoint, &color);
+
+priv->gc_break=gdk_gc_new(widget->window);
+color.red=0xffff;
+color.green=0;
+color.blue=0xffff;
+gdk_gc_set_rgb_fg_color(priv->gc_break, &color);
+
 priv->speed_context=gtk_widget_get_pango_context(widget);
 priv->speed_layout=pango_layout_new(priv->speed_context);
 priv->speed_font=pango_font_description_new();
@@ -683,6 +710,107 @@ priv->ct=NULL;
 return TRUE;
 }
 
+static void
+gtk_map_render_waypoint(GtkWidget *widget, guint x1, guint y1)
+{
+GtkMap *map;
+GtkMapPriv *priv;
+GdkGC *gc;
+
+g_return_if_fail(GTK_IS_MAP(widget));
+
+map=GTK_MAP(widget);
+priv=GTK_MAP_GET_PRIVATE(map);
+
+if ((x1 > priv->buf_width_pixels) || (y1 > priv->buf_height_pixels))
+	return;
+gdk_draw_arc(widget->window, gc, FALSE, x1 - priv->draw_width, y1 - priv->draw_width, 2 * priv->draw_width, 2 * priv->draw_width, 0, 360 * 64);
+}
+
+static void
+gtk_map_render_path_segment(GtkWidget *widget, guint unitx1, guint unity1, guint unitx2, guint unity2)
+{
+GtkMap *map;
+GtkMapPriv *priv;
+GdkGC *gc;
+gint x1, y1, x2, y2;
+
+g_return_if_fail(GTK_IS_MAP(widget));
+
+map=GTK_MAP(widget);
+priv=GTK_MAP_GET_PRIVATE(map);
+
+x1=unit2bufx(unitx1);
+y1=unit2bufy(unity1);
+x2=unit2bufx(unitx2);
+y2=unit2bufy(unity2);
+
+/* Make sure this line could possibly be visible. */
+if (!((x1 > priv->buf_width_pixels && x2 > priv->buf_width_pixels) || (x1 < 0 && x2 < 0)
+      || (y1 > priv->buf_height_pixels && y2 > priv->buf_height_pixels) || (y1 < 0 && y2 < 0))) {
+	gc=priv->gc_track;
+	gdk_draw_line(widget->window, gc, x1, y1, x2, y2);
+}
+}
+
+static void
+gtk_map_render_path(GtkWidget *widget, Path *path, GdkEventExpose *event)
+{
+GtkMap *map;
+GtkMapPriv *priv;
+Point *curr;
+WayPoint *wcurr;
+
+g_return_if_fail(path);
+
+if (path->head==path->tail)
+	return;
+
+map=GTK_MAP(widget);
+priv=GTK_MAP_GET_PRIVATE(map);
+
+for (curr = path->head, wcurr = path->whead; curr++ != path->tail;) {
+	/* Draw the line from (curr - 1) to (curr). */
+
+	gtk_map_render_segment(widget, curr[-1].unitx, curr[-1].unity, curr->unitx, curr->unity);
+	/* Now, check if curr is a waypoint. */
+	if (wcurr && wcurr <= path->wtail && wcurr->point == curr) {
+		guint x1 = unit2bufx(wcurr->point->unitx);
+		guint y1 = unit2bufy(wcurr->point->unity);
+
+		gtk_map_render_waypoint(widget, x1, y1);
+		wcurr++;
+	}
+}
+if (path->type==PATH_TYPE_ROUTE)
+	gtk_map_render_next_waypoint(widget, path);
+}
+
+static void 
+gtk_map_render_paths(GtkWidget *widget, GdkEventExpose *event)
+{
+GtkMap *map;
+GtkMapPriv *priv;
+GSList *iter;
+
+map=GTK_MAP(widget);
+priv=GTK_MAP_GET_PRIVATE(map);
+
+/* No paths defined so return */
+if (!priv->paths)
+	return;
+
+for (iter=priv->paths; iter!=NULL; iter=iter->next) {
+	Path *p=(Path *)iter->data;
+
+	if ( (!(priv->show_paths & ROUTES_MASK) && p->type==PATH_TYPE_ROUTE) || 
+			(!(priv->show_paths & TRACKS_MASK) && p->type==PATH_TYPE_ROUTE) )
+		continue;
+
+	gtk_map_render_path(widget, p, event);
+}
+}
+
 static void 
 gtk_map_mark_draw(GtkWidget *widget, GdkEventExpose *event)
 {
@@ -1078,7 +1206,7 @@ gdk_draw_rectangle(priv->buffer,
 return TRUE;
 }
 
-gboolean
+void
 gtk_map_set_center(GtkWidget *widget, guint unitx, guint unity)
 {
 GtkMap *map;
@@ -1172,6 +1300,15 @@ gtk_map_refresh(widget);
 g_signal_emit(widget, gtk_map_signals[MAP_LOCATION_CHANGED], 0, priv->zoom);
 }
 
+void
+gtk_map_set_center_latlon(GtkWidget *widget, gdouble lat, gdouble lon)
+{
+guint unitx, unity;
+
+latlon2unit(lat, lon, unitx, unity);
+gtk_map_set_center(widget, unitx, unity);
+}
+
 void
 gtk_map_pan(GtkWidget *widget, gint delta_x, gint delta_y)
 {
@@ -1318,6 +1455,10 @@ if (cache_size>512)
 image_cache_set_size(priv->icache, cache_size);
 }
 
+/******************************************************************************/
+/* Internal widget callback handlers                                          */
+/******************************************************************************/
+
 /**
  * Mouse scroller zoom in/out callback
  */
diff --git a/src/gtkmap.h b/src/gtkmap.h
index 360a828..958f3ff 100644
--- a/src/gtkmap.h
+++ b/src/gtkmap.h
@@ -32,6 +32,10 @@ typedef enum {
 	CENTER_LATLON = 2
 } GtkMapCenterMode;
 
+#define TRACKS_MASK  0x00000001
+#define ROUTES_MASK  0x00000002
+#define FRIENDS_MASK 0x00000004
+
 #define GTK_MAP_TYPE			(gtk_map_get_type ())
 #define GTK_MAP(obj)			(G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_MAP_TYPE, GtkMap))
 #define GTK_MAP_CLASS(klass)	(G_TYPE_CHECK_CLASS_CAST ((klass), GTK_MAP_TYPE, GtkMapClass))
@@ -58,41 +62,41 @@ G_BEGIN_DECLS
 
 GType gtk_map_get_type(void);
 GtkWidget* gtk_map_new(void);
+
 void gtk_map_refresh(GtkWidget *map);
 
+/* Map repository handling */
 void gtk_map_set_tile_repository(GtkWidget *map, RepoData *rd);
 
-gboolean gtk_map_key_zoom_timeout(GtkWidget *map);
-void gtk_map_render_path(GtkWidget *map, Path *path, GdkGC ** gc);
-
+/* */
 void gtk_map_set_mark(GtkWidget *map);
 void gtk_map_move_mark(GtkWidget *map);
-void gtk_map_render_data(GtkWidget *map);
 
-void gtk_map_render_waypoint(GtkWidget *map, guint x1, guint y1, GdkGC *gc);
-void gtk_map_render_paths(GtkWidget *map);
-void gtk_map_force_redraw(GtkWidget *map);
-void gtk_map_draw_position_icon(GtkWidget *map, Position *pos, const gchar *icon);
+/* Path functions */
+void gtk_map_set_path(GtkWidget *map, Path *path, PathType type, gint id);
+gboolean gtk_map_remove_path(GtkWidget *map, Path *path);
+gboolean gtk_map_remove_path_by_id(GtkWidget *map, gint id);
+
+/* Get copy of map buffer */
 GdkPixmap *gtk_map_pixmap_get(GtkWidget *map);
 
+/* Tile cache config */
 void gtk_map_set_cache_size(GtkWidget *widget, guint cache_size);
 
 /* Location functions */
-void gtk_map_center_unit(GtkWidget *map, guint unitx, guint unity);
-void gtk_map_center_latlon(GtkWidget *map, gdouble lat, gdouble lon);
+void gtk_map_set_center(GtkWidget *map, guint unitx, guint unity);
+void gtk_map_set_center_latlon(GtkWidget *map, gdouble lat, gdouble lon);
+void gtk_map_get_center_latlon(GtkWidget *map);
 void gtk_map_pan(GtkWidget *map, gint delta_unitx, gint delta_unity);
 
 /* Zoom functions */
 gint gtk_map_get_zoom(GtkWidget *map);
 gint gtk_map_set_zoom(GtkWidget *map, gint zoom);
-gint gtk_map_zoom(GtkWidget *widget, gint zdir);
-gboolean gtk_map_zoom_out(GtkWidget *widget);
-gboolean gtk_map_zoom_in(GtkWidget *widget);
+gint gtk_map_zoom(GtkWidget *map, gint zdir);
+gboolean gtk_map_zoom_out(GtkWidget *map);
+gboolean gtk_map_zoom_in(GtkWidget *map);
 void gtk_map_set_autozoom(GtkWidget *map, gboolean az, gfloat speed);
 
-gboolean gtk_map_goto_position(GtkWidget *map, Position *pos);
-gboolean gtk_map_update_location_from_center(GtkWidget *map);
-
 G_END_DECLS
 
 #endif /* __GTK_MAP_H__ */