static void exo_cell_renderer_icon_render (GtkCellRenderer *renderer, GdkWindow *window, GtkWidget *widget, GdkRectangle *background_area, GdkRectangle *cell_area, GdkRectangle *expose_area, GtkCellRendererState flags) { const ExoCellRendererIconPrivate *priv = EXO_CELL_RENDERER_ICON_GET_PRIVATE (renderer); GtkIconSource *icon_source; GtkIconTheme *icon_theme; GdkRectangle icon_area; GdkRectangle draw_area; GtkStateType state; const gchar *filename; GtkIconInfo *icon_info = NULL; GdkPixbuf *icon = NULL; GdkPixbuf *temp; GError *err = NULL; gchar *display_name = NULL; gint *icon_sizes; gint icon_size; gint n; /* verify that we have an icon */ if (G_UNLIKELY (priv->icon == NULL && priv->gicon == NULL)) return; /* icon may be either an image file or a named icon */ if (priv->icon != NULL && g_path_is_absolute (priv->icon)) { /* load the icon via the thumbnail database */ icon = _exo_thumbnail_get_for_file (priv->icon, (priv->size > 128) ? EXO_THUMBNAIL_SIZE_LARGE : EXO_THUMBNAIL_SIZE_NORMAL, &err); } else if (priv->icon != NULL || priv->gicon != NULL) { /* determine the best icon size (GtkIconTheme is somewhat messy scaling up small icons) */ icon_theme = gtk_icon_theme_get_for_screen (gtk_widget_get_screen (widget)); if (priv->icon != NULL) { icon_sizes = gtk_icon_theme_get_icon_sizes (icon_theme, priv->icon); for (icon_size = -1, n = 0; icon_sizes[n] != 0; ++n) { /* we can use any size if scalable, because we load the file directly */ if (icon_sizes[n] == -1) icon_size = priv->size; else if (icon_sizes[n] > icon_size && icon_sizes[n] <= priv->size) icon_size = icon_sizes[n]; } g_free (icon_sizes); /* if we don't know any icon sizes at all, the icon is probably not present */ if (G_UNLIKELY (icon_size < 0)) icon_size = priv->size; /* lookup the icon in the icon theme */ icon_info = gtk_icon_theme_lookup_icon (icon_theme, priv->icon, icon_size, 0); } else if (priv->gicon != NULL) { icon_info = gtk_icon_theme_lookup_by_gicon (icon_theme, priv->gicon, priv->size, GTK_ICON_LOOKUP_USE_BUILTIN); } if (G_UNLIKELY (icon_info == NULL)) return; /* check if we have an SVG icon here */ filename = gtk_icon_info_get_filename (icon_info); if (filename != NULL && g_str_has_suffix (filename, ".svg")) { /* loading SVG icons is terribly slow, so we try to use thumbnail instead, and we use the * real available cell area directly here, because loading thumbnails involves scaling anyway * and this way we need to the thumbnail pixbuf scale only once. */ icon = _exo_thumbnail_get_for_file (filename, (priv->size > 128) ? EXO_THUMBNAIL_SIZE_LARGE : EXO_THUMBNAIL_SIZE_NORMAL, &err); } else { /* regularly load the icon from the theme */ icon = gtk_icon_info_load_icon (icon_info, &err); } gtk_icon_info_free (icon_info); } /* check if we failed */ if (G_UNLIKELY (icon == NULL)) { /* better let the user know whats going on, might be surprising otherwise */ if (G_LIKELY (priv->icon != NULL)) { display_name = g_filename_display_name (priv->icon); } else if (G_UNLIKELY (priv->gicon != NULL && g_object_class_find_property (G_OBJECT_GET_CLASS (priv->gicon), "name"))) { g_object_get (priv->gicon, "name", &display_name, NULL); } if (display_name != NULL) { g_warning ("Failed to load \"%s\": %s", display_name, err->message); g_free (display_name); } g_error_free (err); return; } /* 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)) { /* colorize the icon if we should follow the selection state */ if ((flags & (GTK_CELL_RENDERER_SELECTED | GTK_CELL_RENDERER_PRELIT)) != 0 && priv->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)); }
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) > (gint) 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)); }