Ejemplo n.º 1
0
void
draw_preview_image (gboolean recompute)
{
  gint      startx, starty, pw, ph;
  GdkColor  color;

  color.red   = 0x0;
  color.green = 0x0;
  color.blue  = 0x0;
  gdk_gc_set_rgb_bg_color (gc, &color);

  color.red   = 0xFFFF;
  color.green = 0xFFFF;
  color.blue  = 0xFFFF;
  gdk_gc_set_rgb_fg_color (gc, &color);

  gdk_gc_set_function (gc, GDK_COPY);

  compute_preview_rectangle (&startx, &starty, &pw, &ph);

  if (recompute)
    {
      GdkDisplay *display = gtk_widget_get_display (previewarea);
      GdkCursor  *cursor;

      cursor = gdk_cursor_new_for_display (display, GDK_WATCH);

      gdk_window_set_cursor (previewarea->window, cursor);
      gdk_cursor_unref (cursor);

      compute_preview (startx, starty, pw, ph);
      cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
      gdk_window_set_cursor (previewarea->window, cursor);
      gdk_cursor_unref (cursor);
      gdk_flush ();

      /* if we recompute, clear backbuf, so we don't
       * restore the wrong bitmap */
      if (backbuf.image != NULL)
        {
          g_object_unref (backbuf.image);
          backbuf.image = NULL;
        }
    }

  gdk_draw_rgb_image (previewarea->window, gc,
                      0, 0, PREVIEW_WIDTH, PREVIEW_HEIGHT,
                      GDK_RGB_DITHER_MAX, preview_rgb_data,
                      3 * PREVIEW_WIDTH);

  /* draw symbols if enabled in UI */
  if (mapvals.interactive_preview)
    {
      draw_handles ();
    }
}
Ejemplo n.º 2
0
void
draw_preview_image (gint docompute)
{
  gint startx, starty, pw, ph;
  GdkColor  color;

  color.red   = 0x0;
  color.green = 0x0;
  color.blue  = 0x0;
  gdk_gc_set_rgb_bg_color (gc, &color);

  color.red   = 0xFFFF;
  color.green = 0xFFFF;
  color.blue  = 0xFFFF;
  gdk_gc_set_rgb_fg_color (gc, &color);

  gdk_gc_set_function (gc, GDK_COPY);
  linetab[0].x1 = -1;

  pw = PREVIEW_WIDTH * mapvals.zoom;
  ph = PREVIEW_HEIGHT * mapvals.zoom;
  startx = (PREVIEW_WIDTH - pw) / 2;
  starty = (PREVIEW_HEIGHT - ph) / 2;

  if (docompute == TRUE)
    {
      GdkDisplay *display = gtk_widget_get_display (previewarea);
      GdkCursor  *cursor;

      cursor = gdk_cursor_new_for_display (display, GDK_WATCH);
      gdk_window_set_cursor (previewarea->window, cursor);
      gdk_cursor_unref (cursor);

      compute_preview (0, 0, width - 1, height - 1, pw, ph);

      cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
      gdk_window_set_cursor(previewarea->window, cursor);
      gdk_cursor_unref (cursor);

      clear_light_marker ();
    }

  if (pw != PREVIEW_WIDTH || ph != PREVIEW_HEIGHT)
    gdk_window_clear (previewarea->window);

  gdk_draw_rgb_image (previewarea->window, gc,
                      startx, starty, pw, ph,
                      GDK_RGB_DITHER_MAX,
                      preview_rgb_data, 3 * pw);

  draw_lights (startx, starty, pw, ph);
}
Ejemplo n.º 3
0
void
preview_compute (void)
{
  GdkDisplay *display = gtk_widget_get_display (previewarea);
  GdkCursor  *cursor;
  gint        startx, starty, pw, ph;

  compute_preview_rectangle (&startx, &starty, &pw, &ph);

  cursor = gdk_cursor_new_for_display (display, GDK_WATCH);

  gdk_window_set_cursor (gtk_widget_get_window (previewarea), cursor);
  gdk_cursor_unref (cursor);

  compute_preview (startx, starty, pw, ph);
  cursor = gdk_cursor_new_for_display (display, GDK_HAND2);
  gdk_window_set_cursor (gtk_widget_get_window (previewarea), cursor);
  gdk_cursor_unref (cursor);
  gdk_flush ();
}