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Diffstat (limited to 'app/widgets/gimpviewrendererimagefile.c')
| -rw-r--r-- | app/widgets/gimpviewrendererimagefile.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/app/widgets/gimpviewrendererimagefile.c b/app/widgets/gimpviewrendererimagefile.c new file mode 100644 index 0000000..e1652f0 --- /dev/null +++ b/app/widgets/gimpviewrendererimagefile.c @@ -0,0 +1,201 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * gimpviewrendererimagefile.c + * Copyright (C) 2004 Michael Natterer <mitch@gimp.org> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <string.h> + +#include <gegl.h> +#include <gtk/gtk.h> + +#include "libgimpthumb/gimpthumb.h" +#include "libgimpwidgets/gimpwidgets.h" + +#include "widgets-types.h" + +#include "core/gimpimagefile.h" + +#include "gimpviewrendererimagefile.h" +#include "gimpviewrenderer-frame.h" +#include "gimpwidgets-utils.h" + + +static void gimp_view_renderer_imagefile_render (GimpViewRenderer *renderer, + GtkWidget *widget); + +static GdkPixbuf * gimp_view_renderer_imagefile_get_icon (GimpImagefile *imagefile, + GtkWidget *widget, + gint size); + + +G_DEFINE_TYPE (GimpViewRendererImagefile, gimp_view_renderer_imagefile, + GIMP_TYPE_VIEW_RENDERER) + +#define parent_class gimp_view_renderer_imagefile_parent_class + + +static void +gimp_view_renderer_imagefile_class_init (GimpViewRendererImagefileClass *klass) +{ + GimpViewRendererClass *renderer_class = GIMP_VIEW_RENDERER_CLASS (klass); + + renderer_class->render = gimp_view_renderer_imagefile_render; +} + +static void +gimp_view_renderer_imagefile_init (GimpViewRendererImagefile *renderer) +{ +} + +static void +gimp_view_renderer_imagefile_render (GimpViewRenderer *renderer, + GtkWidget *widget) +{ + GdkPixbuf *pixbuf = gimp_view_renderer_get_frame_pixbuf (renderer, widget, + renderer->width, + renderer->height); + + if (! pixbuf) + { + GimpImagefile *imagefile = GIMP_IMAGEFILE (renderer->viewable); + + pixbuf = gimp_view_renderer_imagefile_get_icon (imagefile, + widget, + MIN (renderer->width, + renderer->height)); + } + + if (pixbuf) + { + gimp_view_renderer_render_pixbuf (renderer, widget, pixbuf); + g_object_unref (pixbuf); + } + else + { + const gchar *icon_name = gimp_viewable_get_icon_name (renderer->viewable); + + gimp_view_renderer_render_icon (renderer, widget, icon_name); + } +} + + +/* The code to get an icon for a mime-type is lifted from GtkRecentManager. */ + +static GdkPixbuf * +get_icon_for_mime_type (const gchar *mime_type, + gint pixel_size) +{ + GtkIconTheme *icon_theme; + const gchar *separator; + GString *icon_name; + GdkPixbuf *pixbuf; + + separator = strchr (mime_type, '/'); + if (! separator) + return NULL; + + icon_theme = gtk_icon_theme_get_default (); + + /* try with the three icon name variants for MIME types */ + + /* canonicalize MIME type: foo/x-bar -> foo-x-bar */ + icon_name = g_string_new (NULL); + g_string_append_len (icon_name, mime_type, separator - mime_type); + g_string_append_c (icon_name, '-'); + g_string_append (icon_name, separator + 1); + pixbuf = gtk_icon_theme_load_icon (icon_theme, icon_name->str, + pixel_size, 0, NULL); + g_string_free (icon_name, TRUE); + if (pixbuf) + return pixbuf; + + /* canonicalize MIME type, and prepend "gnome-mime-" */ + icon_name = g_string_new ("gnome-mime-"); + g_string_append_len (icon_name, mime_type, separator - mime_type); + g_string_append_c (icon_name, '-'); + g_string_append (icon_name, separator + 1); + pixbuf = gtk_icon_theme_load_icon (icon_theme, icon_name->str, + pixel_size, 0, NULL); + g_string_free (icon_name, TRUE); + if (pixbuf) + return pixbuf; + + /* try the MIME family icon */ + icon_name = g_string_new ("gnome-mime-"); + g_string_append_len (icon_name, mime_type, separator - mime_type); + pixbuf = gtk_icon_theme_load_icon (icon_theme, icon_name->str, + pixel_size, 0, NULL); + g_string_free (icon_name, TRUE); + + return pixbuf; +} + +static GdkPixbuf * +gimp_view_renderer_imagefile_get_icon (GimpImagefile *imagefile, + GtkWidget *widget, + gint size) +{ + GdkScreen *screen = gtk_widget_get_screen (widget); + GtkIconTheme *icon_theme = gtk_icon_theme_get_for_screen (screen); + GimpThumbnail *thumbnail = gimp_imagefile_get_thumbnail (imagefile); + GdkPixbuf *pixbuf = NULL; + + if (! gimp_object_get_name (imagefile)) + return NULL; + + if (! pixbuf) + { + GIcon *icon = gimp_imagefile_get_gicon (imagefile); + + if (icon) + { + GtkIconInfo *info; + + info = gtk_icon_theme_lookup_by_gicon (icon_theme, icon, size, 0); + + if (info) + { + pixbuf = gtk_icon_info_load_icon (info, NULL); + + gtk_icon_info_free (info); + } + } + } + + if (! pixbuf && thumbnail->image_mimetype) + { + pixbuf = get_icon_for_mime_type (thumbnail->image_mimetype, size); + } + + if (! pixbuf) + { + const gchar *icon_name = "text-x-generic"; + + if (thumbnail->image_state == GIMP_THUMB_STATE_FOLDER) + icon_name = "folder"; + + pixbuf = gtk_icon_theme_load_icon (icon_theme, + icon_name, size, + GTK_ICON_LOOKUP_USE_BUILTIN, + NULL); + } + + return pixbuf; +} |