/* handles the mouse button being released inside the drawing area
calls the apropriate tool function, or none */
static gint
button_release_event(GtkWidget *widget, GdkEventButton *event )
{
double x, y;
if (deleting_placename) {
do_delete_placename(current_place);
return TRUE;
}
if (adding_placename) {
x = pix_x_to_map(event->x)*map->config.resolution;
y = pix_y_to_map(event->y)*map->config.resolution;
start_add_placename(x, y);
return TRUE;
}
if (adding_door) {
x = pix_x_to_map(event->x)*map->config.resolution;
y = pix_y_to_map(event->y)*map->config.resolution;
if (adding_door == 2)
start_add_door(x, y);
else
finish_add_door(x, y);
return TRUE;
}
if (event->button == 1 && tmp_pixmap != NULL)
switch(utensil)
{
case CARMEN_MAP_RECTANGLE:
creating_rectangle(widget, 2, event->x, event->y);
break;
case CARMEN_MAP_CROP:
cropping(widget, 2, event->x, event->y);
break;
case CARMEN_MAP_LINE:
creating_line(2, event->x, event->y);
break;
case CARMEN_MAP_MOVER:
move(2, event->x, event->y);
default:
break;
}
redraw();
return 1;
}
/* handles the mouse moving in the drawing area
only calls the appropriate tool function if the mouse button is down.
always sets the cursor to the appropriate symbol */
static gint
motion_notify_event( GtkWidget *widget, GdkEventMotion *event )
{
int x, y;
GdkModifierType state;
static char label_buffer[255];
static carmen_map_point_t map_point;
static carmen_world_point_t world_point;
gtk_propagate_event(GTK_WIDGET(vrule), (GdkEvent *)event);
gtk_propagate_event(GTK_WIDGET(hrule), (GdkEvent *)event);
map_to_tmp();
if (event->is_hint)
gdk_window_get_pointer (event->window, &x, &y, &state);
else
{
x = event->x;
y = event->y;
state = event->state;
}
map_point.x = pix_x_to_map(x);
map_point.y = pix_y_to_map(y);
map_point.map = map;
carmen_map_to_world(&map_point, &world_point);
sprintf(label_buffer, "X: %6.2f Y: %6.2f", world_point.pose.x,
world_point.pose.y);
gtk_label_set_text(GTK_LABEL(coords_label), label_buffer);
if (tmp_pixmap == NULL)
return TRUE;
if (deleting_placename)
{
handle_deleting_placename_move(map_point.x, map_point.y);
}
else if ((state & GDK_BUTTON1_MASK))
{
switch(utensil)
{
case CARMEN_MAP_BRUSH:
draw_brush (widget, x, y);
x = x/mult - brush_size + .5;
y = y/mult - brush_size + .5;
break;
case CARMEN_MAP_RECTANGLE:
creating_rectangle(widget, 1, x, y);
break;
case CARMEN_MAP_CROP:
cropping(widget, 1, x, y);
break;
case CARMEN_MAP_LINE:
creating_line(1, x, y);
break;
case CARMEN_MAP_EYEDROPPER:
sample(x, y);
break;
case CARMEN_MAP_MOVER:
move(1, x, y);
default:
break;
}
}
redraw();
return TRUE;
}
*********************************************************************/
/* draws a square of size 2 * brush_size on a side onto the pixmap and
the map */
void
draw_brush( GtkWidget *widget __attribute__ ((unused)),
gdouble pix_x, gdouble pix_y)
{
int x_left, y_top, x, y;
GdkRectangle update_rect;
gdk_gc_set_foreground (drawing_gc, &color);
x_left = pix_x_to_map(pix_x) - brush_size + .5;
y_top = pix_y_to_map(pix_y) + brush_size + .5;
update_rect.x = map_x_to_map_pix(x_left) + 1.0;
update_rect.y = map_y_to_map_pix(y_top ) + 1.0;
update_rect.width = map_x_to_map_pix((double)(x_left) + brush_size * 2.0) -
update_rect.x + 1.0;
if(update_rect.width < 1)
update_rect.width = 1;
update_rect.height = map_y_to_map_pix((double)(y_top ) - brush_size * 2.0) -
update_rect.y + 1.0;
if(update_rect.height < 1)
update_rect.height = 1;
gdk_draw_rectangle (map_pixmap,
drawing_gc,
TRUE,
update_rect.x, update_rect.y,
update_rect.width, update_rect.height);
