Ejemplo n.º 1
0
static void
thunar_icon_renderer_render (GtkCellRenderer     *renderer,
                             GdkWindow           *window,
                             GtkWidget           *widget,
                             GdkRectangle        *background_area,
                             GdkRectangle        *cell_area,
                             GdkRectangle        *expose_area,
                             GtkCellRendererState flags)
{
  ThunarClipboardManager *clipboard;
  ThunarFileIconState     icon_state;
  ThunarIconRenderer     *icon_renderer = THUNAR_ICON_RENDERER (renderer);
  ThunarIconFactory      *icon_factory;
  GtkIconSource          *icon_source;
  GtkIconTheme           *icon_theme;
  GdkRectangle            emblem_area;
  GdkRectangle            icon_area;
  GdkRectangle            draw_area;
  GtkStateType            state;
  GdkPixbuf              *emblem;
  GdkPixbuf              *icon;
  GdkPixbuf              *temp;
  GList                  *emblems;
  GList                  *lp;
  gint                    max_emblems;
  gint                    position;

  if (G_UNLIKELY (icon_renderer->file == NULL))
    return;

  /* determine the icon state */
  icon_state = (icon_renderer->drop_file != icon_renderer->file)
             ? renderer->is_expanded
              ? THUNAR_FILE_ICON_STATE_OPEN
              : THUNAR_FILE_ICON_STATE_DEFAULT
             : THUNAR_FILE_ICON_STATE_DROP;

  /* load the main icon */
  icon_theme = gtk_icon_theme_get_for_screen (gdk_drawable_get_screen (window));
  icon_factory = thunar_icon_factory_get_for_icon_theme (icon_theme);
  icon = thunar_icon_factory_load_file_icon (icon_factory, icon_renderer->file, icon_state, icon_renderer->size);
  if (G_UNLIKELY (icon == NULL))
    {
      g_object_unref (G_OBJECT (icon_factory));
      return;
    }

  /* pre-light the item if we're dragging about it */
  if (G_UNLIKELY (icon_state == THUNAR_FILE_ICON_STATE_DROP))
    flags |= GTK_CELL_RENDERER_PRELIT;

  /* determine the real icon size */
  icon_area.width = gdk_pixbuf_get_width (icon);
  icon_area.height = gdk_pixbuf_get_height (icon);

  /* scale down the icon on-demand */
  if (G_UNLIKELY (icon_area.width > cell_area->width || icon_area.height > cell_area->height))
    {
      /* scale down to fit */
      temp = exo_gdk_pixbuf_scale_down (icon, TRUE, cell_area->width, cell_area->height);
      g_object_unref (G_OBJECT (icon));
      icon = temp;

      /* determine the icon dimensions again */
      icon_area.width = gdk_pixbuf_get_width (icon);
      icon_area.height = gdk_pixbuf_get_height (icon);
    }

  icon_area.x = cell_area->x + (cell_area->width - icon_area.width) / 2;
  icon_area.y = cell_area->y + (cell_area->height - icon_area.height) / 2;

  /* check whether the icon is affected by the expose event */
  if (gdk_rectangle_intersect (expose_area, &icon_area, &draw_area))
    {
      /* use a translucent icon to represent cutted and hidden files to the user */
      clipboard = thunar_clipboard_manager_get_for_display (gtk_widget_get_display (widget));
      if (thunar_clipboard_manager_has_cutted_file (clipboard, icon_renderer->file))
        {
          /* 50% translucent for cutted files */
          temp = exo_gdk_pixbuf_lucent (icon, 50);
          g_object_unref (G_OBJECT (icon));
          icon = temp;
        }
      else if (thunar_file_is_hidden (icon_renderer->file))
        {
          /* 75% translucent for hidden files */
          temp = exo_gdk_pixbuf_lucent (icon, 75);
          g_object_unref (G_OBJECT (icon));
          icon = temp;
        }
      g_object_unref (G_OBJECT (clipboard));

      /* colorize the icon if we should follow the selection state */
      if ((flags & (GTK_CELL_RENDERER_SELECTED | GTK_CELL_RENDERER_PRELIT)) != 0 && icon_renderer->follow_state)
        {
          if ((flags & GTK_CELL_RENDERER_SELECTED) != 0)
            {
              state = GTK_WIDGET_HAS_FOCUS (widget) ? GTK_STATE_SELECTED : GTK_STATE_ACTIVE;
              temp = exo_gdk_pixbuf_colorize (icon, &widget->style->base[state]);
              g_object_unref (G_OBJECT (icon));
              icon = temp;
            }

          if ((flags & GTK_CELL_RENDERER_PRELIT) != 0)
            {
              temp = exo_gdk_pixbuf_spotlight (icon);
              g_object_unref (G_OBJECT (icon));
              icon = temp;
            }
        }

      /* check if we should render an insensitive icon */
      if (G_UNLIKELY (GTK_WIDGET_STATE (widget) == GTK_STATE_INSENSITIVE || !renderer->sensitive))
        {
          /* allocate an icon source */
          icon_source = gtk_icon_source_new ();
          gtk_icon_source_set_pixbuf (icon_source, icon);
          gtk_icon_source_set_size_wildcarded (icon_source, FALSE);
          gtk_icon_source_set_size (icon_source, GTK_ICON_SIZE_SMALL_TOOLBAR);

          /* render the insensitive icon */
          temp = gtk_style_render_icon (widget->style, icon_source, gtk_widget_get_direction (widget),
                                        GTK_STATE_INSENSITIVE, -1, widget, "gtkcellrendererpixbuf");
          g_object_unref (G_OBJECT (icon));
          icon = temp;

          /* release the icon source */
          gtk_icon_source_free (icon_source);
        }

      /* render the invalid parts of the icon */
      gdk_draw_pixbuf (window, widget->style->black_gc, icon,
                       draw_area.x - icon_area.x, draw_area.y - icon_area.y,
                       draw_area.x, draw_area.y, draw_area.width, draw_area.height,
                       GDK_RGB_DITHER_NORMAL, 0, 0);
    }

  /* release the file's icon */
  g_object_unref (G_OBJECT (icon));

  /* check if we should render emblems as well */
  if (G_LIKELY (icon_renderer->emblems))
    {
      /* display the primary emblem as well (if any) */
      emblems = thunar_file_get_emblem_names (icon_renderer->file);
      if (G_UNLIKELY (emblems != NULL))
        {
          /* render up to four emblems for sizes from 48 onwards, else up to 2 emblems */
          max_emblems = (icon_renderer->size < 48) ? 2 : 4;

          /* render the emblems */
          for (lp = emblems, position = 0; lp != NULL && position < max_emblems; lp = lp->next)
            {
              /* check if we have the emblem in the icon theme */
              emblem = thunar_icon_factory_load_icon (icon_factory, lp->data, icon_renderer->size, NULL, FALSE);
              if (G_UNLIKELY (emblem == NULL))
                continue;

              /* determine the dimensions of the emblem */
              emblem_area.width = gdk_pixbuf_get_width (emblem);
              emblem_area.height = gdk_pixbuf_get_height (emblem);

              /* shrink insane emblems */
              if (G_UNLIKELY (MAX (emblem_area.width, emblem_area.height) > MIN ((2 * icon_renderer->size) / 3, 36)))
                {
                  /* scale down the emblem */
                  temp = exo_gdk_pixbuf_scale_ratio (emblem, MIN ((2 * icon_renderer->size) / 3, 36));
                  g_object_unref (G_OBJECT (emblem));
                  emblem = temp;

                  /* determine the size again */
                  emblem_area.width = gdk_pixbuf_get_width (emblem);
                  emblem_area.height = gdk_pixbuf_get_height (emblem);
                }

              /* determine a good position for the emblem, depending on the position index */
              switch (position)
                {
                case 0: /* right/bottom */
                  emblem_area.x = MIN (icon_area.x + icon_area.width - emblem_area.width / 2,
                                       cell_area->x + cell_area->width - emblem_area.width);
                  emblem_area.y = MIN (icon_area.y + icon_area.height - emblem_area.height / 2,
                                       cell_area->y + cell_area->height -emblem_area.height);
                  break;

                case 1: /* left/bottom */
                  emblem_area.x = MAX (icon_area.x - emblem_area.width / 2,
                                       cell_area->x);
                  emblem_area.y = MIN (icon_area.y + icon_area.height - emblem_area.height / 2,
                                       cell_area->y + cell_area->height -emblem_area.height);
                  break;

                case 2: /* left/top */
                  emblem_area.x = MAX (icon_area.x - emblem_area.width / 2,
                                       cell_area->x);
                  emblem_area.y = MAX (icon_area.y - emblem_area.height / 2,
                                       cell_area->y);
                  break;

                case 3: /* right/top */
                  emblem_area.x = MIN (icon_area.x + icon_area.width - emblem_area.width / 2,
                                       cell_area->x + cell_area->width - emblem_area.width);
                  emblem_area.y = MAX (icon_area.y - emblem_area.height / 2,
                                       cell_area->y);
                  break;

                default:
                  _thunar_assert_not_reached ();
                }

              /* render the emblem */
              if (gdk_rectangle_intersect (expose_area, &emblem_area, &draw_area))
                {
                  gdk_draw_pixbuf (window, widget->style->black_gc, emblem,
                                   draw_area.x - emblem_area.x, draw_area.y - emblem_area.y,
                                   draw_area.x, draw_area.y, draw_area.width, draw_area.height,
                                   GDK_RGB_DITHER_NORMAL, 0, 0);
                }

              /* release the emblem */
              g_object_unref (G_OBJECT (emblem));

              /* advance the position index */
              ++position;
            }

          /* release the emblem name list */
          g_list_free (emblems);
        }
    }

  /* release our reference on the icon factory */
  g_object_unref (G_OBJECT (icon_factory));
}
static void
thunar_location_entry_button_clicked (GtkWidget           *button,
                                      ThunarLocationEntry *location_entry)
{
  ThunarShortcutsModel *model;
  ThunarIconFactory    *icon_factory;
  ThunarVfsVolume      *volume;
  GtkIconTheme         *icon_theme;
  const gchar          *icon_name;
  GtkTreeIter           iter;
  ThunarFile           *file;
  GtkWidget            *image;
  GtkWidget            *item;
  GtkWidget            *menu;
  GdkPixbuf            *icon;
  gint                  icon_size;
  gint                  width;

  _thunar_return_if_fail (THUNAR_IS_LOCATION_ENTRY (location_entry));
  _thunar_return_if_fail (GTK_IS_TOGGLE_BUTTON (button));

  /* allocate a new menu */
  menu = gtk_menu_new ();

  /* determine the icon theme and factory */
  icon_theme = gtk_icon_theme_get_for_screen (gtk_widget_get_screen (button));
  icon_factory = thunar_icon_factory_get_for_icon_theme (icon_theme);

  /* determine the icon size for menus */
  gtk_icon_size_lookup (GTK_ICON_SIZE_MENU, &icon_size, &icon_size);

  /* load the menu items from the shortcuts model */
  model = thunar_shortcuts_model_get_default ();
  if (gtk_tree_model_get_iter_first (GTK_TREE_MODEL (model), &iter))
    {
      do
        {
          /* determine the file and volume for the item */
          gtk_tree_model_get (GTK_TREE_MODEL (model), &iter,
                              THUNAR_SHORTCUTS_MODEL_COLUMN_FILE, &file,
                              THUNAR_SHORTCUTS_MODEL_COLUMN_VOLUME, &volume,
                              -1);

          /* check if we have a separator here */
          if (G_UNLIKELY (file == NULL && volume == NULL))
            {
              /* generate a separator the menu */
              item = gtk_separator_menu_item_new ();
            }
          else if (G_UNLIKELY (volume != NULL))
            {
              /* generate an image menu item for the volume */
              item = gtk_image_menu_item_new_with_label (thunar_vfs_volume_get_name (volume));

              /* load the icon for the volume */
              icon_name = thunar_vfs_volume_lookup_icon_name (volume, icon_theme);
              icon = thunar_icon_factory_load_icon (icon_factory, icon_name, icon_size, NULL, FALSE);
              if (G_LIKELY (icon != NULL))
                {
                  /* generate an image for the menu item */
                  image = gtk_image_new_from_pixbuf (icon);
                  gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
                  g_object_unref (G_OBJECT (icon));
                  gtk_widget_show (image);
                }
            }
          else
            {
              /* generate an image menu item for the file */
              item = gtk_image_menu_item_new_with_label (thunar_file_get_display_name (file));

              /* load the icon for the file and generate the image for the menu item */
              icon = thunar_icon_factory_load_file_icon (icon_factory, file, THUNAR_FILE_ICON_STATE_DEFAULT, icon_size);
              image = gtk_image_new_from_pixbuf (icon);
              gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
              g_object_unref (G_OBJECT (icon));
              gtk_widget_show (image);
            }

          /* connect the file and volume to the item */
          g_object_set_data_full (G_OBJECT (item), I_("thunar-vfs-volume"), volume, g_object_unref);
          g_object_set_data_full (G_OBJECT (item), I_("thunar-file"), file, g_object_unref);

          /* append the new item to the menu */
          g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (thunar_location_entry_item_activated), location_entry);
          gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
          gtk_widget_show (item);
        }
      while (gtk_tree_model_iter_next (GTK_TREE_MODEL (model), &iter));
    }

  /* make sure the menu has atleast the same width as the location entry */
  width = GTK_WIDGET (location_entry)->allocation.width - 2 * gtk_container_get_border_width (GTK_CONTAINER (location_entry));
  if (G_LIKELY (menu->allocation.width < width))
    gtk_widget_set_size_request (menu, width, -1);

  /* select the first visible or selectable item in the menu */
  gtk_menu_shell_select_first (GTK_MENU_SHELL (menu), TRUE);

  /* enable the button, making sure that we do not recurse on the "clicked" signal by temporarily blocking the handler */
  g_signal_handlers_block_by_func (G_OBJECT (button), G_CALLBACK (thunar_location_entry_button_clicked), location_entry);
  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
  g_signal_handlers_unblock_by_func (G_OBJECT (button), G_CALLBACK (thunar_location_entry_button_clicked), location_entry);

  /* run the menu, taking ownership over the menu object */
  thunar_gtk_menu_run (GTK_MENU (menu), button, menu_position, location_entry, 1, gtk_get_current_event_time ());

  /* disable the button, making sure that we do not recurse on the "clicked" signal by temporarily blocking the handler */
  g_signal_handlers_block_by_func (G_OBJECT (button), G_CALLBACK (thunar_location_entry_button_clicked), location_entry);
  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), FALSE);
  g_signal_handlers_unblock_by_func (G_OBJECT (button), G_CALLBACK (thunar_location_entry_button_clicked), location_entry);

  /* clean up */
  g_object_unref (G_OBJECT (icon_factory));
  g_object_unref (G_OBJECT (model));
}