diff options
Diffstat (limited to 'mate-panel/libpanel-util/panel-icon-chooser.c')
| -rw-r--r-- | mate-panel/libpanel-util/panel-icon-chooser.c | 555 |
1 files changed, 555 insertions, 0 deletions
diff --git a/mate-panel/libpanel-util/panel-icon-chooser.c b/mate-panel/libpanel-util/panel-icon-chooser.c new file mode 100644 index 00000000..07d14641 --- /dev/null +++ b/mate-panel/libpanel-util/panel-icon-chooser.c @@ -0,0 +1,555 @@ +/* + * panel-icon-chooser.c: An icon chooser widget + * + * Copyright (C) 2010 Novell, Inc. + * + * 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 2 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, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + * + * Authors: + * Vincent Untz <[email protected]> + */ + +#include <glib/gi18n.h> +#include <gtk/gtk.h> + +#include "panel-gtk.h" +#include "panel-xdg.h" + +#include "panel-icon-chooser.h" + +#define PANEL_ICON_CHOOSER_ICON_SIZE GTK_ICON_SIZE_DIALOG + +struct _PanelIconChooserPrivate +{ + char *fallback_icon_name; + char *icon; + + char *icon_theme_dir; + + GtkWidget *image; + + GtkWidget *filechooser; +}; + +enum { + CHANGED, + LAST_SIGNAL +}; + +enum { + PROP_0, + PROP_FALLBACK_ICON, + PROP_ICON +}; + +static guint panel_icon_chooser_signals[LAST_SIGNAL] = { 0 }; + +#define PANEL_ICON_CHOOSER_GET_PRIVATE(o) (PANEL_ICON_CHOOSER (o)->priv) + +G_DEFINE_TYPE (PanelIconChooser, panel_icon_chooser, GTK_TYPE_BUTTON) + +static void _panel_icon_chooser_clicked (GtkButton *button); +static void _panel_icon_chooser_style_set (GtkWidget *widget, + GtkStyle *prev_style); +static void _panel_icon_chooser_screen_changed (GtkWidget *widget, + GdkScreen *prev_screen); + +/* gobject stuff */ + +static GObject * +panel_icon_chooser_constructor (GType type, + guint n_construct_properties, + GObjectConstructParam *construct_properties) +{ + GObject *obj; + PanelIconChooser *chooser; + + obj = G_OBJECT_CLASS (panel_icon_chooser_parent_class)->constructor (type, + n_construct_properties, + construct_properties); + + chooser = PANEL_ICON_CHOOSER (obj); + gtk_container_add (GTK_CONTAINER (chooser), chooser->priv->image); + gtk_widget_show (chooser->priv->image); + + return obj; +} + +static void +panel_icon_chooser_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + PanelIconChooser *chooser; + + g_return_if_fail (PANEL_IS_ICON_CHOOSER (object)); + + chooser = PANEL_ICON_CHOOSER (object); + + switch (prop_id) { + case PROP_FALLBACK_ICON: + g_value_set_string (value, panel_icon_chooser_get_fallback_icon_name (chooser)); + break; + case PROP_ICON: + g_value_set_string (value, panel_icon_chooser_get_icon (chooser)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +panel_icon_chooser_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + PanelIconChooser *chooser; + + g_return_if_fail (PANEL_IS_ICON_CHOOSER (object)); + + chooser = PANEL_ICON_CHOOSER (object); + + switch (prop_id) { + case PROP_FALLBACK_ICON: + panel_icon_chooser_set_fallback_icon_name (chooser, + g_value_get_string (value)); + break; + case PROP_ICON: + panel_icon_chooser_set_icon (chooser, + g_value_get_string (value)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +panel_icon_chooser_destroy (GtkObject *object) +{ + PanelIconChooser *chooser; + + chooser = PANEL_ICON_CHOOSER (object); + + if (chooser->priv->filechooser) { + gtk_widget_destroy (chooser->priv->filechooser); + chooser->priv->filechooser = NULL; + } + + /* remember, destroy can be run multiple times! */ + + if (chooser->priv->fallback_icon_name != NULL) + g_free (chooser->priv->fallback_icon_name); + chooser->priv->fallback_icon_name = NULL; + + if (chooser->priv->icon != NULL) + g_free (chooser->priv->icon); + chooser->priv->icon = NULL; + + if (chooser->priv->icon_theme_dir != NULL) + g_free (chooser->priv->icon_theme_dir); + chooser->priv->icon_theme_dir = NULL; + + GTK_OBJECT_CLASS (panel_icon_chooser_parent_class)->destroy (object); +} + +static void +panel_icon_chooser_class_init (PanelIconChooserClass *class) +{ + GObjectClass *gobject_class = G_OBJECT_CLASS (class); + GtkObjectClass *gtkobject_class = GTK_OBJECT_CLASS (class); + GtkWidgetClass *gtkwidget_class = GTK_WIDGET_CLASS (class); + GtkButtonClass *gtkbutton_class = GTK_BUTTON_CLASS (class); + + gobject_class->constructor = panel_icon_chooser_constructor; + gobject_class->get_property = panel_icon_chooser_get_property; + gobject_class->set_property = panel_icon_chooser_set_property; + + gtkobject_class->destroy = panel_icon_chooser_destroy; + + gtkwidget_class->style_set = _panel_icon_chooser_style_set; + gtkwidget_class->screen_changed = _panel_icon_chooser_screen_changed; + + gtkbutton_class->clicked = _panel_icon_chooser_clicked; + + g_type_class_add_private (class, + sizeof (PanelIconChooserPrivate)); + + panel_icon_chooser_signals[CHANGED] = + g_signal_new ("changed", + G_TYPE_FROM_CLASS (gobject_class), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (PanelIconChooserClass, + changed), + NULL, + NULL, + g_cclosure_marshal_VOID__STRING, + G_TYPE_NONE, 1, + G_TYPE_STRING); + + g_object_class_install_property ( + gobject_class, + PROP_FALLBACK_ICON, + g_param_spec_string ("fallback-icon-name", + "Fallback Icon Name", + "Icon name of the icon displayed (but not returned) if the current icon does not exit", + NULL, + G_PARAM_READWRITE | G_PARAM_CONSTRUCT)); + + g_object_class_install_property ( + gobject_class, + PROP_ICON, + g_param_spec_string ("icon", + "Icon", + "Icon name or path", + NULL, + G_PARAM_READWRITE | G_PARAM_CONSTRUCT)); +} + +static void +panel_icon_chooser_init (PanelIconChooser *chooser) +{ + PanelIconChooserPrivate *priv; + + priv = G_TYPE_INSTANCE_GET_PRIVATE (chooser, + PANEL_TYPE_ICON_CHOOSER, + PanelIconChooserPrivate); + + chooser->priv = priv; + + priv->fallback_icon_name = g_strdup ("gtk-missing-image"); + priv->icon = NULL; + priv->icon_theme_dir = NULL; + + priv->image = gtk_image_new_from_icon_name (priv->fallback_icon_name, + PANEL_ICON_CHOOSER_ICON_SIZE); + + priv->filechooser = NULL; +} + +/* internal code */ + +static void +_panel_icon_chooser_update (PanelIconChooser *chooser) +{ + if (!chooser->priv->icon) { + gtk_image_set_from_icon_name (GTK_IMAGE (chooser->priv->image), + chooser->priv->fallback_icon_name, + PANEL_ICON_CHOOSER_ICON_SIZE); + + } else if (g_path_is_absolute (chooser->priv->icon)) { + gboolean fallback; + + fallback = TRUE; + + if (g_file_test (chooser->priv->icon, G_FILE_TEST_EXISTS)) { + /* we pass via a pixbuf to force the size we want */ + GdkPixbuf *pixbuf; + int width, height; + + gtk_icon_size_lookup (PANEL_ICON_CHOOSER_ICON_SIZE, + &width, &height); + pixbuf = gdk_pixbuf_new_from_file_at_size (chooser->priv->icon, + width, height, + NULL); + + if (pixbuf) { + gtk_image_set_from_pixbuf (GTK_IMAGE (chooser->priv->image), + pixbuf); + g_object_unref (pixbuf); + fallback = FALSE; + } + } + + if (fallback) { + gtk_image_set_from_icon_name (GTK_IMAGE (chooser->priv->image), + chooser->priv->fallback_icon_name, + PANEL_ICON_CHOOSER_ICON_SIZE); + } + + } else { + /* Note: using GThemedIcon doesn't work well, see bug #606752. + * When we'll remove the alternative code, we won't need the + * style_set/screen_changed handlers anymore. + */ +#if 0 + GIcon *icon; + char *names[2]; + + names[0] = panel_xdg_icon_remove_extension (chooser->priv->icon); + names[1] = chooser->priv->fallback_icon_name; + icon = g_themed_icon_new_from_names (names, 2); + + gtk_image_set_from_gicon (GTK_IMAGE (chooser->priv->image), + icon, + PANEL_ICON_CHOOSER_ICON_SIZE); + + g_free (names[0]); +#endif + GtkIconTheme *icon_theme; + const char *icon; + char *no_ext; + + no_ext = panel_xdg_icon_remove_extension (chooser->priv->icon); + + icon_theme = gtk_icon_theme_get_for_screen (gtk_widget_get_screen (GTK_WIDGET (chooser))); + if (gtk_icon_theme_has_icon (icon_theme, no_ext)) + icon = no_ext; + else + icon = chooser->priv->fallback_icon_name; + + gtk_image_set_from_icon_name (GTK_IMAGE (chooser->priv->image), + icon, + PANEL_ICON_CHOOSER_ICON_SIZE); + + g_free (no_ext); + } +} + +static char * +_panel_icon_chooser_find_icon_from_path (PanelIconChooser *chooser, + const char *path) +{ + GdkScreen *screen; + char *icon; + + screen = gtk_widget_get_screen (GTK_WIDGET (chooser)); + + icon = panel_xdg_icon_name_from_icon_path (path, screen); + if (!icon) + icon = g_strdup (path); + + return icon; +} + +static void +_panel_icon_chooser_file_chooser_response (GtkFileChooser *filechooser, + gint response_id, + PanelIconChooser *chooser) +{ + if (response_id == GTK_RESPONSE_ACCEPT) { + char *path; + char *icon; + + path = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (filechooser)); + icon = _panel_icon_chooser_find_icon_from_path (chooser, path); + g_free (path); + + panel_icon_chooser_set_icon (chooser, icon); + g_free (icon); + } + + gtk_widget_destroy (GTK_WIDGET (filechooser)); +} + +static void +_panel_icon_chooser_clicked (GtkButton *button) +{ + PanelIconChooser *chooser = PANEL_ICON_CHOOSER (button); + GtkWidget *filechooser; + GtkWidget *toplevel; + GtkWindow *parent; + char *path; + gboolean filechooser_path_set; + + if (chooser->priv->filechooser) { + gtk_window_present (GTK_WINDOW (chooser->priv->filechooser)); + return; + } + + toplevel = gtk_widget_get_toplevel (GTK_WIDGET (button)); + if (gtk_widget_is_toplevel (toplevel)) + parent = GTK_WINDOW (toplevel); + else + parent = NULL; + + filechooser = gtk_file_chooser_dialog_new (_("Choose an icon"), + parent, + GTK_FILE_CHOOSER_ACTION_OPEN, + GTK_STOCK_CANCEL, + GTK_RESPONSE_CANCEL, + GTK_STOCK_OPEN, + GTK_RESPONSE_ACCEPT, + NULL); + panel_gtk_file_chooser_add_image_preview (GTK_FILE_CHOOSER (filechooser)); + + path = g_build_filename (DATADIR, "icons", NULL); + gtk_file_chooser_add_shortcut_folder (GTK_FILE_CHOOSER (filechooser), + path, NULL); + g_free (path); + + path = g_build_filename (DATADIR, "pixmaps", NULL); + gtk_file_chooser_add_shortcut_folder (GTK_FILE_CHOOSER (filechooser), + path, NULL); + g_free (path); + + filechooser_path_set = FALSE; + + if (chooser->priv->icon) { + char *path = NULL; + if (g_path_is_absolute (chooser->priv->icon)) { + path = g_strdup (chooser->priv->icon); + } else { + GtkIconTheme *icon_theme; + GtkIconInfo *info; + char *no_ext; + int size; + + icon_theme = gtk_icon_theme_get_for_screen (gtk_widget_get_screen (GTK_WIDGET (chooser))); + no_ext = panel_xdg_icon_remove_extension (chooser->priv->icon); + gtk_icon_size_lookup (PANEL_ICON_CHOOSER_ICON_SIZE, + &size, NULL); + + info = gtk_icon_theme_lookup_icon (icon_theme, no_ext, + size, 0); + g_free (no_ext); + + if (info) { + path = g_strdup (gtk_icon_info_get_filename (info)); + gtk_icon_info_free (info); + } + } + + if (path) { + gtk_file_chooser_set_filename (GTK_FILE_CHOOSER (filechooser), + path); + g_free (path); + filechooser_path_set = TRUE; + } + } + + if (!filechooser_path_set) { + char *path; + // FIXME? Use current icon theme? But there might not be a lot + // of icons there... + path = g_build_filename (DATADIR, "icons", NULL); + gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (filechooser), + path); + } + + gtk_window_set_destroy_with_parent (GTK_WINDOW (filechooser), TRUE); + + g_signal_connect (filechooser, "response", + G_CALLBACK (_panel_icon_chooser_file_chooser_response), + chooser); + + chooser->priv->filechooser = filechooser; + + g_signal_connect (G_OBJECT (filechooser), "destroy", + G_CALLBACK (gtk_widget_destroyed), + &chooser->priv->filechooser); + + gtk_widget_show (filechooser); +} + +static void +_panel_icon_chooser_style_set (GtkWidget *widget, + GtkStyle *prev_style) +{ + PanelIconChooser *chooser; + + chooser = PANEL_ICON_CHOOSER (widget); + + GTK_WIDGET_CLASS (panel_icon_chooser_parent_class)->style_set (widget, prev_style); + + _panel_icon_chooser_update (chooser); +} + +static void +_panel_icon_chooser_screen_changed (GtkWidget *widget, + GdkScreen *prev_screen) +{ + PanelIconChooser *chooser; + + chooser = PANEL_ICON_CHOOSER (widget); + + if (GTK_WIDGET_CLASS (panel_icon_chooser_parent_class)->screen_changed) + GTK_WIDGET_CLASS (panel_icon_chooser_parent_class)->screen_changed (widget, prev_screen); + + _panel_icon_chooser_update (chooser); +} + +/* public methods */ + +GtkWidget * +panel_icon_chooser_new (const char *icon) +{ + GtkWidget *chooser; + + chooser = g_object_new (PANEL_TYPE_ICON_CHOOSER, + "icon", icon, + NULL); + + return chooser; +} + +const char * +panel_icon_chooser_get_fallback_icon_name (PanelIconChooser *chooser) +{ + g_return_val_if_fail (PANEL_IS_ICON_CHOOSER (chooser), NULL); + + return chooser->priv->fallback_icon_name; +} + +void +panel_icon_chooser_set_fallback_icon_name (PanelIconChooser *chooser, + const char *fallback_icon_name) +{ + g_return_if_fail (PANEL_IS_ICON_CHOOSER (chooser)); + + if (g_strcmp0 (chooser->priv->fallback_icon_name, fallback_icon_name) == 0) + return; + + if (chooser->priv->fallback_icon_name) + g_free (chooser->priv->fallback_icon_name); + chooser->priv->fallback_icon_name = g_strdup (fallback_icon_name); + + _panel_icon_chooser_update (chooser); + + g_object_notify (G_OBJECT (chooser), "fallback-icon-name"); +} + +const char * +panel_icon_chooser_get_icon (PanelIconChooser *chooser) +{ + g_return_val_if_fail (PANEL_IS_ICON_CHOOSER (chooser), NULL); + + return chooser->priv->icon; +} + +void +panel_icon_chooser_set_icon (PanelIconChooser *chooser, + const char *icon) +{ + g_return_if_fail (PANEL_IS_ICON_CHOOSER (chooser)); + + if (g_strcmp0 (chooser->priv->icon, icon) == 0) + return; + + if (chooser->priv->icon) + g_free (chooser->priv->icon); + chooser->priv->icon = g_strdup (icon); + + _panel_icon_chooser_update (chooser); + + g_object_notify (G_OBJECT (chooser), "icon"); + + g_signal_emit (G_OBJECT (chooser), + panel_icon_chooser_signals[CHANGED], 0, icon); +} |