C++ (Cpp) refresh_overview_from_canvas Examples

Example #1

File: mapview.c Project: longturn/freeciv-S2_5

/**************************************************************************
  Overview canvas exposed
**************************************************************************/
gboolean overview_canvas_expose(GtkWidget *w, GdkEventExpose *ev, gpointer data)
{
  if (!can_client_change_view()) {
    if (radar_gfx_sprite) {
      gdk_draw_drawable(overview_canvas->window, civ_gc,
			radar_gfx_sprite->pixmap, ev->area.x, ev->area.y,
			ev->area.x, ev->area.y,
			ev->area.width, ev->area.height);
    }
    return TRUE;
  }
  
  refresh_overview_from_canvas();
  return TRUE;
}

Example #2

File: overview_common.c Project: jheusala/freeciv

/**************************************************************************
  Copies the overview image from the backing store to the window and
  draws the viewrect on top of it.
**************************************************************************/
static void redraw_overview(void)
{
  int i, x[4], y[4];

  if (!overview.map) {
    return;
  }

  {
    struct canvas *src = overview.map, *dst = overview.window;
    int x = overview.map_x0 * OVERVIEW_TILE_SIZE;
    int y = overview.map_y0 * OVERVIEW_TILE_SIZE;
    int ix = overview.width - x;
    int iy = overview.height - y;

    canvas_copy(dst, src, 0, 0, ix, iy, x, y);
    canvas_copy(dst, src, 0, y, ix, 0, x, iy);
    canvas_copy(dst, src, x, 0, 0, iy, ix, y);
    canvas_copy(dst, src, x, y, 0, 0, ix, iy);
  }

  gui_to_overview_pos(tileset, &x[0], &y[0],
		      mapview.gui_x0, mapview.gui_y0);
  gui_to_overview_pos(tileset, &x[1], &y[1],
		      mapview.gui_x0 + mapview.width, mapview.gui_y0);
  gui_to_overview_pos(tileset, &x[2], &y[2],
		      mapview.gui_x0 + mapview.width,
		      mapview.gui_y0 + mapview.height);
  gui_to_overview_pos(tileset, &x[3], &y[3],
		      mapview.gui_x0, mapview.gui_y0 + mapview.height);

  for (i = 0; i < 4; i++) {
    int src_x = x[i];
    int src_y = y[i];
    int dst_x = x[(i + 1) % 4];
    int dst_y = y[(i + 1) % 4];

    canvas_put_line(overview.window,
		    get_color(tileset, COLOR_OVERVIEW_VIEWRECT),
		    LINE_NORMAL,
		    src_x, src_y, dst_x - src_x, dst_y - src_y);
  }

  refresh_overview_from_canvas();

  overview_dirty = FALSE;
}

Example #3

File: mapview.c Project: longturn/freeciv-S2_5

/**************************************************************************
...
**************************************************************************/
void overview_canvas_expose(Widget w, XEvent *event, Region exposed, 
			    void *client_data)
{
  Dimension height, width;
  
  if (!can_client_change_view()) {
    if (radar_gfx_sprite) {
      XCopyArea(display, radar_gfx_sprite->pixmap, XtWindow(overview_canvas),
                 civ_gc,
                 event->xexpose.x, event->xexpose.y,
                 event->xexpose.width, event->xexpose.height,
                 event->xexpose.x, event->xexpose.y);
    }
    return;
  }

  XtVaGetValues(w, XtNheight, &height, XtNwidth, &width, NULL);
  
  refresh_overview_from_canvas();
}