Markers as individual textures

[grits] / src / gis-object.c

diff --git a/src/gis-object.c b/src/gis-object.c
index 8c041b7a706bc08da491ea800dbc18e12c8374fe..cfd1870f137ab62456aa658b9177cf937ab316e5 100644 (file)
--- a/src/gis-object.c
+++ b/src/gis-object.c
@@ -145,14 +145,30 @@ void gis_callback_free(GisCallback *self)
 /* GisCallback */
 GisMarker *gis_marker_new(const gchar *label)
 {
+       static const int RADIUS =   4;
+       static const int WIDTH  = 100;
+       static const int HEIGHT =  20;
+
        GisMarker *self = g_new0(GisMarker, 1);
        GIS_OBJECT(self)->type = GIS_TYPE_MARKER;
-       self->label = g_strdup(label);;
+       self->xoff  = RADIUS;
+       self->yoff  = HEIGHT-RADIUS;
+       self->label = g_strdup(label);
+       self->cairo = cairo_create(cairo_image_surface_create(
+                               CAIRO_FORMAT_ARGB32, WIDTH, HEIGHT));
+       cairo_set_source_rgba(self->cairo, 1, 1, 1, 1);
+       cairo_arc(self->cairo, self->xoff, self->yoff, RADIUS, 0, 2*G_PI);
+       cairo_fill(self->cairo);
+       cairo_move_to(self->cairo, self->xoff+4, self->yoff-8);
+       cairo_set_font_size(self->cairo, 10);
+       cairo_show_text(self->cairo, self->label);
        return self;
 }
 
 void gis_marker_free(GisMarker *self)
 {
+       cairo_surface_destroy(cairo_get_target(self->cairo));
+       cairo_destroy(self->cairo);
        g_free(self->label);
        g_free(self);
 }