C++ (Cpp) gimp_display_shell_scroll_setup_hscrollbar Examples

Example #1

File: gimpdisplayshell-scale.c Project: MichaelMure/Gimp-Cage-Tool

/**
 * gimp_display_shell_scale_update_scrollbars:
 * @shell:
 *
 **/
void
gimp_display_shell_scale_update_scrollbars (GimpDisplayShell *shell)
{
  GimpImage *image;
  gint       image_width;
  gint       image_height;

  if (! shell->display)
    return;

  image = gimp_display_get_image (shell->display);

  if (image)
    {
      image_width  = gimp_image_get_width  (image);
      image_height = gimp_image_get_height (image);
    }
  else
    {
      image_width  = shell->disp_width;
      image_height = shell->disp_height;
    }


  /* Horizontal scrollbar */

  g_object_freeze_notify (G_OBJECT (shell->hsbdata));

  /* Update upper and lower value before we set the new value */
  gimp_display_shell_scroll_setup_hscrollbar (shell, shell->offset_x);

  g_object_set (shell->hsbdata,
                "value",          (gdouble) shell->offset_x,
                "page-size",      (gdouble) shell->disp_width,
                "page-increment", (gdouble) shell->disp_width / 2,
                NULL);

  g_object_thaw_notify (G_OBJECT (shell->hsbdata)); /* emits "changed" */


  /* Vertcal scrollbar */

  g_object_freeze_notify (G_OBJECT (shell->vsbdata));

  /* Update upper and lower value before we set the new value */
  gimp_display_shell_scroll_setup_vscrollbar (shell, shell->offset_y);

  g_object_set (shell->vsbdata,
                "value",          (gdouble) shell->offset_y,
                "page-size",      (gdouble) shell->disp_height,
                "page-increment", (gdouble) shell->disp_height / 2,
                NULL);

  g_object_thaw_notify (G_OBJECT (shell->vsbdata)); /* emits "changed" */
}

Example #2

File: gimpdisplayshell-callbacks.c Project: Distrotech/gimp

static gboolean
gimp_display_shell_hscrollbar_change_value (GtkRange         *range,
                                            GtkScrollType     scroll,
                                            gdouble           value,
                                            GimpDisplayShell *shell)
{
  if (! shell->display)
    return TRUE;

  if ((scroll == GTK_SCROLL_JUMP)          ||
      (scroll == GTK_SCROLL_PAGE_BACKWARD) ||
      (scroll == GTK_SCROLL_PAGE_FORWARD))
    return FALSE;

  g_object_freeze_notify (G_OBJECT (shell->hsbdata));

  gimp_display_shell_scroll_setup_hscrollbar (shell, value);

  g_object_thaw_notify (G_OBJECT (shell->hsbdata)); /* emits "changed" */

  return FALSE;
}