static gboolean on_motion_notify(GisViewer *viewer, GdkEventMotion *event, gpointer _)
{
- gdouble x_dist = viewer->drag_x - event->x;
- gdouble y_dist = viewer->drag_y - event->y;
+ gdouble x = viewer->drag_x - event->x;
+ gdouble y = viewer->drag_y - event->y;
gdouble lat, lon, elev, scale;
gis_viewer_get_location(GIS_VIEWER(viewer), &lat, &lon, &elev);
scale = elev/EARTH_R/15;
switch (viewer->drag_mode) {
- case GIS_DRAG_PAN:
- gis_viewer_pan(viewer, -y_dist*scale, x_dist*scale, 0);
- break;
- case GIS_DRAG_ZOOM:
- gis_viewer_zoom(viewer, pow(2, -y_dist/500));
- break;
- case GIS_DRAG_TILT:
- gis_viewer_rotate(viewer, y_dist/10, 0, x_dist/10);
- break;
+ case GIS_DRAG_PAN: gis_viewer_pan(viewer, -y*scale, x*scale, 0); break;
+ case GIS_DRAG_ZOOM: gis_viewer_zoom(viewer, pow(2, -y/500)); break;
+ case GIS_DRAG_TILT: gis_viewer_rotate(viewer, y/10, 0, x/10); break;
}
viewer->drag_x = event->x;
viewer->drag_y = event->y;
gtk_widget_queue_draw(GTK_WIDGET(viewer));
}
+static void on_realize(GisViewer *viewer)
+{
+ GdkCursor *cursor = gdk_cursor_new(GDK_FLEUR);
+ GdkWindow *window = gtk_widget_get_window(GTK_WIDGET(viewer));
+ gdk_window_set_cursor(window, cursor);
+}
+
/***********
* Methods *
***********/
g_signal_connect(viewer, "location-changed", G_CALLBACK(on_view_changed), NULL);
g_signal_connect(viewer, "rotation-changed", G_CALLBACK(on_view_changed), NULL);
+
+ g_signal_connect(viewer, "realize", G_CALLBACK(on_realize), NULL);
}
static void gis_viewer_finalize(GObject *gobject)
{