1056 lines
32 KiB
C
1056 lines
32 KiB
C
/*
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Copyright (C) 2007-2009 Christian Dywan <christian@twotoasts.de>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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See the file COPYING for the full license text.
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*/
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#include "katze-utils.h"
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#include <glib/gstdio.h>
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#include <glib/gi18n.h>
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#include <string.h>
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static void
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proxy_toggle_button_toggled_cb (GtkToggleButton* button,
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GObject* object)
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{
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gboolean toggled = gtk_toggle_button_get_active (button);
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const gchar* property = g_object_get_data (G_OBJECT (button), "property");
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g_object_set (object, property, toggled, NULL);
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}
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static void
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proxy_file_file_set_cb (GtkFileChooser* button,
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GObject* object)
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{
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const gchar* file = gtk_file_chooser_get_filename (button);
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const gchar* property = g_object_get_data (G_OBJECT (button), "property");
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g_object_set (object, property, file, NULL);
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}
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static void
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proxy_folder_file_set_cb (GtkFileChooser* button,
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GObject* object)
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{
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const gchar* file = gtk_file_chooser_get_current_folder (button);
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const gchar* property = g_object_get_data (G_OBJECT (button), "property");
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g_object_set (object, property, file, NULL);
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}
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static void
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proxy_uri_file_set_cb (GtkFileChooser* button,
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GObject* object)
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{
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const gchar* file = gtk_file_chooser_get_uri (button);
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const gchar* property = g_object_get_data (G_OBJECT (button), "property");
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g_object_set (object, property, file, NULL);
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}
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static void
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proxy_combo_box_text_changed_cb (GtkComboBox* button,
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GObject* object)
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{
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gchar* text = gtk_combo_box_get_active_text (button);
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const gchar* property = g_object_get_data (G_OBJECT (button), "property");
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g_object_set (object, property, text, NULL);
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}
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static void
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proxy_combo_box_apps_changed_cb (GtkComboBox* button,
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GObject* object)
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{
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guint active = gtk_combo_box_get_active (button);
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GtkTreeModel* model = gtk_combo_box_get_model (button);
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GtkTreeIter iter;
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if (gtk_tree_model_iter_nth_child (model, &iter, NULL, active))
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{
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GAppInfo* info;
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const gchar* exe;
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const gchar* property = g_object_get_data (G_OBJECT (button), "property");
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gtk_tree_model_get (model, &iter, 0, &info, -1);
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if (info)
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{
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#if 0 /* GLIB_CHECK_VERSION (2, 20, 0) */
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/* FIXME: Implement non-trivial command lines */
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exe = g_app_info_get_commandline (info);
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#else
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exe = g_app_info_get_executable (info);
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#endif
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g_object_set (object, property, exe, NULL);
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g_object_unref (info);
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}
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else
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g_object_set (object, property, "", NULL);
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}
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}
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static void
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proxy_entry_activate_cb (GtkEntry* entry,
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GObject* object)
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{
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const gchar* text = gtk_entry_get_text (entry);
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const gchar* property = g_object_get_data (G_OBJECT (entry), "property");
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g_object_set (object, property, text, NULL);
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}
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static gboolean
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proxy_entry_focus_out_event_cb (GtkEntry* entry,
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GdkEventFocus* event,
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GObject* object)
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{
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const gchar* text = gtk_entry_get_text (entry);
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const gchar* property = g_object_get_data (G_OBJECT (entry), "property");
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g_object_set (object, property, text, NULL);
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return FALSE;
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}
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static void
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proxy_spin_button_changed_cb (GtkSpinButton* button,
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GObject* object)
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{
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GObjectClass* class = G_OBJECT_GET_CLASS (object);
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const gchar* property = g_object_get_data (G_OBJECT (button), "property");
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GParamSpec* pspec = g_object_class_find_property (class, property);
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if (G_PARAM_SPEC_TYPE (pspec) == G_TYPE_PARAM_INT)
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{
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gint value = gtk_spin_button_get_value_as_int (button);
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g_object_set (object, property, value, NULL);
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}
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else
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{
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gdouble value = gtk_spin_button_get_value (button);
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g_object_set (object, property, value, NULL);
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}
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}
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static void
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proxy_combo_box_changed_cb (GtkComboBox* button,
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GObject* object)
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{
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gint value = gtk_combo_box_get_active (button);
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const gchar* property = g_object_get_data (G_OBJECT (button), "property");
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g_object_set (object, property, value, NULL);
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}
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static void
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proxy_object_notify_boolean_cb (GObject* object,
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GParamSpec* pspec,
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GtkWidget* proxy)
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{
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const gchar* property = g_object_get_data (G_OBJECT (proxy), "property");
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gboolean value = katze_object_get_boolean (object, property);
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (proxy), value);
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}
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static void
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proxy_object_notify_string_cb (GObject* object,
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GParamSpec* pspec,
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GtkWidget* proxy)
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{
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const gchar* property = g_object_get_data (G_OBJECT (proxy), "property");
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gchar* value = katze_object_get_string (object, property);
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gtk_entry_set_text (GTK_ENTRY (proxy), value);
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g_free (value);
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}
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static void
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proxy_widget_boolean_destroy_cb (GtkWidget* proxy,
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GObject* object)
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{
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g_signal_handlers_disconnect_by_func (object,
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proxy_object_notify_boolean_cb, proxy);
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}
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static void
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proxy_widget_string_destroy_cb (GtkWidget* proxy,
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GObject* object)
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{
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g_signal_handlers_disconnect_by_func (object,
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proxy_object_notify_string_cb, proxy);
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}
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static GList*
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katze_app_info_get_all_for_category (const gchar* category)
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{
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GList* all_apps = g_app_info_get_all ();
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GList* apps = NULL;
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guint i = 0;
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GAppInfo* info;
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while ((info = g_list_nth_data (all_apps, i++)))
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{
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#ifdef GDK_WINDOWING_X11
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gchar* filename = g_strconcat ("applications/", g_app_info_get_id (info), NULL);
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GKeyFile* file = g_key_file_new ();
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if (g_key_file_load_from_data_dirs (file, filename, NULL, G_KEY_FILE_NONE, NULL))
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{
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gchar* cat = g_key_file_get_string (file, "Desktop Entry",
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"Categories", NULL);
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if (cat && g_strrstr (cat, category))
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apps = g_list_append (apps, info);
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g_free (cat);
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}
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g_key_file_free (file);
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g_free (filename);
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#else
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apps = g_list_append (apps, info);
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#endif
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}
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g_list_free (all_apps);
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return apps;
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}
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/**
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* katze_property_proxy:
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* @object: a #GObject
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* @property: the name of a property
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* @hint: a special hint
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*
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* Create a widget of an appropriate type to represent the specified
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* object's property. If the property is writable changes of the value
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* through the widget will be reflected in the value of the property.
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*
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* Supported values for @hint are as follows:
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* "blurb": the blurb of the property will be used to provide a kind
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* of label, instead of the name.
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* "file": the widget created will be particularly suitable for
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* choosing an existing filename.
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* "folder": the widget created will be particularly suitable for
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* choosing an existing folder.
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* "uri": the widget created will be particularly suitable for
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* choosing an existing filename, encoded as an URI.
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* "font": the widget created will be particularly suitable for
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* choosing a variable-width font from installed fonts.
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* Since 0.1.6 the following hints are also supported:
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* "toggle": the widget created will be an empty toggle button. This
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* is only supported with boolean properties.
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* Since 0.1.8 "toggle" creates GtkCheckButton widgets without checkmarks.
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* Since 0.2.0 the following hints are also supported:
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* "font-monospace": the widget created will be particularly suitable for
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* choosing a fixed-width font from installed fonts.
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* Since 0.2.1 the following hints are also supported:
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* "application-TYPE": the widget created will be particularly suitable
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* for choosing an application to open TYPE files, ie. "text/plain".
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* "application-CATEGORY": the widget created will be particularly suitable
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* for choosing an application to open CATEGORY files, ie. "Network".
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*
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* Any other values for @hint are silently ignored.
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*
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* Since 0.1.2 strings without hints and booleans are truly synchronous
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* including property changes causing the proxy to be updated.
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*
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* Return value: a new widget
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**/
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GtkWidget*
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katze_property_proxy (gpointer object,
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const gchar* property,
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const gchar* hint)
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{
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GObjectClass* class;
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GParamSpec* pspec;
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GType type;
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const gchar* nick;
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const gchar* _hint;
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GtkWidget* widget;
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gchar* string;
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g_return_val_if_fail (G_IS_OBJECT (object), NULL);
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class = G_OBJECT_GET_CLASS (object);
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pspec = g_object_class_find_property (class, property);
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if (!pspec)
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{
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g_warning (_("Property '%s' is invalid for %s"),
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property, G_OBJECT_CLASS_NAME (class));
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return gtk_label_new (property);
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}
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type = G_PARAM_SPEC_TYPE (pspec);
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nick = g_param_spec_get_nick (pspec);
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_hint = g_intern_string (hint);
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if (_hint == g_intern_string ("blurb"))
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nick = g_param_spec_get_blurb (pspec);
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string = NULL;
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if (type == G_TYPE_PARAM_BOOLEAN)
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{
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gchar* notify_property;
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gboolean toggled = katze_object_get_boolean (object, property);
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widget = gtk_check_button_new ();
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if (_hint == g_intern_string ("toggle"))
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gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (widget), FALSE);
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else
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gtk_button_set_label (GTK_BUTTON (widget), gettext (nick));
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), toggled);
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g_signal_connect (widget, "toggled",
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G_CALLBACK (proxy_toggle_button_toggled_cb), object);
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notify_property = g_strdup_printf ("notify::%s", property);
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g_signal_connect (object, notify_property,
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G_CALLBACK (proxy_object_notify_boolean_cb), widget);
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g_signal_connect (widget, "destroy",
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G_CALLBACK (proxy_widget_boolean_destroy_cb), object);
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g_free (notify_property);
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}
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else if (type == G_TYPE_PARAM_STRING && _hint == g_intern_string ("file"))
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{
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string = katze_object_get_string (object, property);
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widget = gtk_file_chooser_button_new (_("Choose file"),
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GTK_FILE_CHOOSER_ACTION_OPEN);
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if (!string)
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string = g_strdup (G_PARAM_SPEC_STRING (pspec)->default_value);
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gtk_file_chooser_set_filename (GTK_FILE_CHOOSER (widget),
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string ? string : "");
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if (pspec->flags & G_PARAM_WRITABLE)
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g_signal_connect (widget, "selection-changed",
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G_CALLBACK (proxy_file_file_set_cb), object);
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}
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else if (type == G_TYPE_PARAM_STRING && _hint == g_intern_string ("folder"))
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{
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string = katze_object_get_string (object, property);
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widget = gtk_file_chooser_button_new (_("Choose folder"),
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GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER);
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if (!string)
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string = g_strdup (G_PARAM_SPEC_STRING (pspec)->default_value);
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gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (widget),
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string ? string : "");
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if (pspec->flags & G_PARAM_WRITABLE)
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g_signal_connect (widget, "selection-changed",
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G_CALLBACK (proxy_folder_file_set_cb), object);
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}
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else if (type == G_TYPE_PARAM_STRING && _hint == g_intern_string ("uri"))
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{
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string = katze_object_get_string (object, property);
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widget = gtk_file_chooser_button_new (_("Choose file"),
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GTK_FILE_CHOOSER_ACTION_OPEN);
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if (!string)
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string = g_strdup (G_PARAM_SPEC_STRING (pspec)->default_value);
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gtk_file_chooser_set_uri (GTK_FILE_CHOOSER (widget),
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string ? string : "");
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#if GTK_CHECK_VERSION (2, 12, 0)
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g_signal_connect (widget, "file-set",
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G_CALLBACK (proxy_uri_file_set_cb), object);
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#else
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if (pspec->flags & G_PARAM_WRITABLE)
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g_signal_connect (widget, "selection-changed",
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G_CALLBACK (proxy_uri_file_set_cb), object);
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#endif
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}
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else if (type == G_TYPE_PARAM_STRING && (_hint == g_intern_string ("font")
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|| _hint == g_intern_string ("font-monospace")))
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{
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GtkComboBox* combo;
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gint n_families, i;
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PangoContext* context;
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PangoFontFamily** families;
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gboolean monospace = _hint == g_intern_string ("font-monospace");
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string = katze_object_get_string (object, property);
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widget = gtk_combo_box_new_text ();
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combo = GTK_COMBO_BOX (widget);
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context = gtk_widget_get_pango_context (widget);
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pango_context_list_families (context, &families, &n_families);
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if (!string)
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string = g_strdup (G_PARAM_SPEC_STRING (pspec)->default_value);
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if (string)
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{
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gint j = 0;
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for (i = 0; i < n_families; i++)
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{
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const gchar* font = pango_font_family_get_name (families[i]);
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if (monospace != pango_font_family_is_monospace (families[i]))
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continue;
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gtk_combo_box_append_text (combo, font);
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if (!g_ascii_strcasecmp (font, string))
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gtk_combo_box_set_active (combo, j);
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j++;
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}
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}
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gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (
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gtk_combo_box_get_model (combo)), 0, GTK_SORT_ASCENDING);
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g_signal_connect (widget, "changed",
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G_CALLBACK (proxy_combo_box_text_changed_cb), object);
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g_free (families);
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}
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else if (type == G_TYPE_PARAM_STRING && hint && g_str_has_prefix (hint, "application-"))
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{
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GtkListStore* model;
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GtkCellRenderer* renderer;
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GtkComboBox* combo;
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GList* apps;
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const gchar* app_type = &hint[12];
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model = gtk_list_store_new (3, G_TYPE_APP_INFO, G_TYPE_STRING, G_TYPE_STRING);
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widget = gtk_combo_box_new_with_model (GTK_TREE_MODEL (model));
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renderer = gtk_cell_renderer_pixbuf_new ();
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gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (widget), renderer, FALSE);
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gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (widget), renderer, "icon-name", 1);
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renderer = gtk_cell_renderer_text_new ();
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gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (widget), renderer, TRUE);
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gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (widget), renderer, "text", 2);
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combo = GTK_COMBO_BOX (widget);
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apps = g_app_info_get_all_for_type (app_type);
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if (!apps)
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apps = katze_app_info_get_all_for_category (app_type);
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string = katze_object_get_string (object, property);
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if (!g_strcmp0 (string, ""))
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katze_assign (string, NULL);
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if (apps)
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{
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GtkTreeIter iter_none;
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gint i = 0;
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GAppInfo* info;
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gtk_list_store_insert_with_values (model, &iter_none, 0,
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0, NULL, 1, NULL, 2, _("None"), -1);
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while ((info = g_list_nth_data (apps, i++)))
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{
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const gchar* name = g_app_info_get_name (info);
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GIcon* icon = g_app_info_get_icon (info);
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gchar* icon_name = g_icon_to_string (icon);
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GtkTreeIter iter;
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gtk_list_store_insert_with_values (model, &iter, G_MAXINT,
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0, info, 1, icon_name, 2, name, -1);
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if (string && g_strrstr (g_app_info_get_executable (info), string))
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gtk_combo_box_set_active_iter (combo, &iter);
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g_free (icon_name);
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}
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if (gtk_combo_box_get_active (combo) == -1)
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{
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if (string)
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/* FIXME: Support custom command */;
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else
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gtk_combo_box_set_active_iter (combo, &iter_none);
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}
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}
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g_list_free (apps);
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g_signal_connect (widget, "changed",
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G_CALLBACK (proxy_combo_box_apps_changed_cb), object);
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}
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else if (type == G_TYPE_PARAM_STRING)
|
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{
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gchar* notify_property;
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|
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widget = gtk_entry_new ();
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g_object_get (object, property, &string, NULL);
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if (!string)
|
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string = g_strdup (G_PARAM_SPEC_STRING (pspec)->default_value);
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gtk_entry_set_text (GTK_ENTRY (widget), string ? string : "");
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g_signal_connect (widget, "activate",
|
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G_CALLBACK (proxy_entry_activate_cb), object);
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g_signal_connect (widget, "focus-out-event",
|
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G_CALLBACK (proxy_entry_focus_out_event_cb), object);
|
|
notify_property = g_strdup_printf ("notify::%s", property);
|
|
g_signal_connect (object, notify_property,
|
|
G_CALLBACK (proxy_object_notify_string_cb), widget);
|
|
g_signal_connect (widget, "destroy",
|
|
G_CALLBACK (proxy_widget_string_destroy_cb), object);
|
|
g_free (notify_property);
|
|
}
|
|
else if (type == G_TYPE_PARAM_FLOAT)
|
|
{
|
|
gfloat value = katze_object_get_float (object, property);
|
|
|
|
widget = gtk_spin_button_new_with_range (
|
|
G_PARAM_SPEC_FLOAT (pspec)->minimum,
|
|
G_PARAM_SPEC_FLOAT (pspec)->maximum, 1);
|
|
/* Keep it narrow, 5 + 2 digits are usually fine */
|
|
gtk_entry_set_width_chars (GTK_ENTRY (widget), 5 + 2);
|
|
gtk_spin_button_set_digits (GTK_SPIN_BUTTON (widget), 2);
|
|
gtk_spin_button_set_value (GTK_SPIN_BUTTON (widget), value);
|
|
g_signal_connect (widget, "value-changed",
|
|
G_CALLBACK (proxy_spin_button_changed_cb), object);
|
|
}
|
|
else if (type == G_TYPE_PARAM_INT)
|
|
{
|
|
gint value = katze_object_get_int (object, property);
|
|
|
|
widget = gtk_spin_button_new_with_range (
|
|
G_PARAM_SPEC_INT (pspec)->minimum,
|
|
G_PARAM_SPEC_INT (pspec)->maximum, 1);
|
|
/* Keep it narrow, 5 digits are usually fine */
|
|
gtk_entry_set_width_chars (GTK_ENTRY (widget), 5);
|
|
gtk_spin_button_set_value (GTK_SPIN_BUTTON (widget), value);
|
|
g_signal_connect (widget, "value-changed",
|
|
G_CALLBACK (proxy_spin_button_changed_cb), object);
|
|
}
|
|
else if (type == G_TYPE_PARAM_ENUM)
|
|
{
|
|
guint i;
|
|
GEnumClass* enum_class = G_ENUM_CLASS (
|
|
g_type_class_ref (pspec->value_type));
|
|
gint value = katze_object_get_enum (object, property);
|
|
|
|
widget = gtk_combo_box_new_text ();
|
|
for (i = 0; i < enum_class->n_values; i++)
|
|
{
|
|
const gchar* label = gettext (enum_class->values[i].value_nick);
|
|
gtk_combo_box_append_text (GTK_COMBO_BOX (widget), label);
|
|
}
|
|
gtk_combo_box_set_active (GTK_COMBO_BOX (widget), value);
|
|
g_signal_connect (widget, "changed",
|
|
G_CALLBACK (proxy_combo_box_changed_cb), object);
|
|
g_type_class_unref (enum_class);
|
|
}
|
|
else
|
|
widget = gtk_label_new (gettext (nick));
|
|
g_free (string);
|
|
|
|
gtk_widget_set_tooltip_text (widget, g_param_spec_get_blurb (pspec));
|
|
gtk_widget_set_sensitive (widget, pspec->flags & G_PARAM_WRITABLE);
|
|
|
|
g_object_set_data_full (G_OBJECT (widget), "property",
|
|
g_strdup (property), g_free);
|
|
|
|
return widget;
|
|
}
|
|
|
|
/**
|
|
* katze_property_label:
|
|
* @object: a #GObject
|
|
* @property: the name of a property
|
|
*
|
|
* Create a label widget displaying the name of the specified object's property.
|
|
*
|
|
* Return value: a new label widget
|
|
**/
|
|
GtkWidget*
|
|
katze_property_label (gpointer object,
|
|
const gchar* property)
|
|
{
|
|
GObjectClass* class;
|
|
GParamSpec* pspec;
|
|
const gchar* nick;
|
|
GtkWidget* widget;
|
|
|
|
g_return_val_if_fail (G_IS_OBJECT (object), NULL);
|
|
|
|
class = G_OBJECT_GET_CLASS (object);
|
|
pspec = g_object_class_find_property (class, property);
|
|
if (!pspec)
|
|
{
|
|
g_warning (_("Property '%s' is invalid for %s"),
|
|
property, G_OBJECT_CLASS_NAME (class));
|
|
return gtk_label_new (property);
|
|
}
|
|
nick = g_param_spec_get_nick (pspec);
|
|
widget = gtk_label_new (nick);
|
|
gtk_misc_set_alignment (GTK_MISC (widget), 0.0, 0.5);
|
|
|
|
return widget;
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
GtkWidget* widget;
|
|
KatzeMenuPos position;
|
|
} KatzePopupInfo;
|
|
|
|
static void
|
|
katze_widget_popup_position_menu (GtkMenu* menu,
|
|
gint* x,
|
|
gint* y,
|
|
gboolean* push_in,
|
|
gpointer user_data)
|
|
{
|
|
gint wx, wy;
|
|
gint menu_width;
|
|
GtkRequisition menu_req;
|
|
GtkRequisition widget_req;
|
|
KatzePopupInfo* info = user_data;
|
|
GtkWidget* widget = info->widget;
|
|
gint widget_height;
|
|
|
|
/* Retrieve size and position of both widget and menu */
|
|
if (GTK_WIDGET_NO_WINDOW (widget))
|
|
{
|
|
gdk_window_get_position (widget->window, &wx, &wy);
|
|
wx += widget->allocation.x;
|
|
wy += widget->allocation.y;
|
|
}
|
|
else
|
|
gdk_window_get_origin (widget->window, &wx, &wy);
|
|
gtk_widget_size_request (GTK_WIDGET (menu), &menu_req);
|
|
gtk_widget_size_request (widget, &widget_req);
|
|
menu_width = menu_req.width;
|
|
widget_height = widget_req.height; /* Better than allocation.height */
|
|
|
|
/* Calculate menu position */
|
|
if (info->position == KATZE_MENU_POSITION_CURSOR)
|
|
; /* Do nothing? */
|
|
else if (info->position == KATZE_MENU_POSITION_RIGHT)
|
|
{
|
|
*x = wx + widget->allocation.width - menu_width;
|
|
*y = wy + widget_height;
|
|
} else if (info->position == KATZE_MENU_POSITION_LEFT)
|
|
{
|
|
*x = wx;
|
|
*y = wy + widget_height;
|
|
}
|
|
|
|
*push_in = TRUE;
|
|
}
|
|
|
|
/**
|
|
* katze_widget_popup:
|
|
* @widget: a widget
|
|
* @menu: the menu to popup
|
|
* @event: a button event, or %NULL
|
|
* @pos: the preferred positioning
|
|
*
|
|
* Pops up the given menu relative to @widget. Use this
|
|
* instead of writing custom positioning functions.
|
|
*
|
|
* Return value: a new label widget
|
|
**/
|
|
void
|
|
katze_widget_popup (GtkWidget* widget,
|
|
GtkMenu* menu,
|
|
GdkEventButton* event,
|
|
KatzeMenuPos pos)
|
|
{
|
|
int button, event_time;
|
|
if (event)
|
|
{
|
|
button = event->button;
|
|
event_time = event->time;
|
|
}
|
|
else
|
|
{
|
|
button = 0;
|
|
event_time = gtk_get_current_event_time ();
|
|
}
|
|
|
|
if (!gtk_menu_get_attach_widget (menu))
|
|
gtk_menu_attach_to_widget (menu, widget, NULL);
|
|
|
|
|
|
if (widget)
|
|
{
|
|
KatzePopupInfo info = { widget, pos };
|
|
gtk_menu_popup (menu, NULL, NULL,
|
|
katze_widget_popup_position_menu, &info,
|
|
button, event_time);
|
|
}
|
|
else
|
|
gtk_menu_popup (menu, NULL, NULL, NULL, NULL, button, event_time);
|
|
}
|
|
|
|
/**
|
|
* katze_image_menu_item_new_ellipsized:
|
|
* @label: a label or %NULL
|
|
*
|
|
* Creates an image menu item where the label is
|
|
* reasonably ellipsized for you.
|
|
*
|
|
* Return value: a new label widget
|
|
**/
|
|
GtkWidget*
|
|
katze_image_menu_item_new_ellipsized (const gchar* label)
|
|
{
|
|
GtkWidget* menuitem;
|
|
GtkWidget* label_widget;
|
|
|
|
menuitem = gtk_image_menu_item_new ();
|
|
label_widget = gtk_label_new (label);
|
|
/* FIXME: Should text direction be respected here? */
|
|
gtk_misc_set_alignment (GTK_MISC (label_widget), 0.0, 0.0);
|
|
gtk_label_set_max_width_chars (GTK_LABEL (label_widget), 50);
|
|
gtk_label_set_ellipsize (GTK_LABEL (label_widget), PANGO_ELLIPSIZE_MIDDLE);
|
|
gtk_widget_show (label_widget);
|
|
gtk_container_add (GTK_CONTAINER (menuitem), label_widget);
|
|
|
|
return menuitem;
|
|
}
|
|
|
|
/**
|
|
* katze_pixbuf_new_from_buffer:
|
|
* @buffer: Buffer with image data
|
|
* @length: Length of the buffer
|
|
* @mime_type: a MIME type, or %NULL
|
|
* @error: return location for a #GError, or %NULL
|
|
*
|
|
* Creates a new #GdkPixbuf out of the specified buffer.
|
|
*
|
|
* You can specify a MIME type if looking at the buffer
|
|
* is not enough to determine the right type.
|
|
*
|
|
* Return value: A newly-allocated #GdkPixbuf
|
|
**/
|
|
GdkPixbuf*
|
|
katze_pixbuf_new_from_buffer (const guchar* buffer,
|
|
gsize length,
|
|
const gchar* mime_type,
|
|
GError** error)
|
|
{
|
|
/* Proposed for inclusion in GdkPixbuf
|
|
See http://bugzilla.gnome.org/show_bug.cgi?id=74291 */
|
|
GdkPixbufLoader* loader;
|
|
GdkPixbuf* pixbuf;
|
|
|
|
g_return_val_if_fail (buffer != NULL, NULL);
|
|
g_return_val_if_fail (length > 0, NULL);
|
|
|
|
if (mime_type)
|
|
{
|
|
loader = gdk_pixbuf_loader_new_with_mime_type (mime_type, error);
|
|
if (!loader)
|
|
return NULL;
|
|
}
|
|
else
|
|
loader = gdk_pixbuf_loader_new ();
|
|
if (!gdk_pixbuf_loader_write (loader, buffer, length, error))
|
|
{
|
|
g_object_unref (loader);
|
|
return NULL;
|
|
}
|
|
if (!gdk_pixbuf_loader_close (loader, error))
|
|
{
|
|
g_object_unref (loader);
|
|
return NULL;
|
|
}
|
|
|
|
pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
|
|
g_object_ref (pixbuf);
|
|
g_object_unref (loader);
|
|
return pixbuf;
|
|
}
|
|
|
|
/**
|
|
* katze_tree_view_get_selected_iter:
|
|
* @treeview: a #GtkTreeView
|
|
* @model: a pointer to store the model, or %NULL
|
|
* @iter: a pointer to store the iter, or %NULL
|
|
*
|
|
* Determines whether there is a selection in @treeview
|
|
* and sets the @iter to the current selection.
|
|
*
|
|
* If there is a selection and @model is not %NULL, it is
|
|
* set to the model, mainly for convenience.
|
|
*
|
|
* Either @model or @iter or both can be %NULL in which case
|
|
* no value will be assigned in any case.
|
|
*
|
|
* Return value: %TRUE if there is a selection
|
|
*
|
|
* Since: 0.1.3
|
|
**/
|
|
gboolean
|
|
katze_tree_view_get_selected_iter (GtkTreeView* treeview,
|
|
GtkTreeModel** model,
|
|
GtkTreeIter* iter)
|
|
{
|
|
GtkTreeSelection* selection;
|
|
|
|
g_return_val_if_fail (GTK_IS_TREE_VIEW (treeview), FALSE);
|
|
|
|
if ((selection = gtk_tree_view_get_selection (treeview)))
|
|
if (gtk_tree_selection_get_selected (selection, model, iter))
|
|
return TRUE;
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* katze_strip_mnemonics:
|
|
* @original: a string with mnemonics
|
|
*
|
|
* Parses the given string for mnemonics in the form
|
|
* "B_utton" or "Button (_U)" and returns a string
|
|
* without any mnemonics.
|
|
*
|
|
* Return value: a newly allocated string without mnemonics
|
|
*
|
|
* Since: 0.1.8
|
|
**/
|
|
gchar*
|
|
katze_strip_mnemonics (const gchar* original)
|
|
{
|
|
/* A copy of _gtk_toolbar_elide_underscores
|
|
Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
|
|
Copied from GTK+ 2.17.1 */
|
|
gchar *q, *result;
|
|
const gchar *p, *end;
|
|
gsize len;
|
|
gboolean last_underscore;
|
|
|
|
if (!original)
|
|
return NULL;
|
|
|
|
len = strlen (original);
|
|
q = result = g_malloc (len + 1);
|
|
last_underscore = FALSE;
|
|
|
|
end = original + len;
|
|
for (p = original; p < end; p++)
|
|
{
|
|
if (!last_underscore && *p == '_')
|
|
last_underscore = TRUE;
|
|
else
|
|
{
|
|
last_underscore = FALSE;
|
|
if (original + 2 <= p && p + 1 <= end &&
|
|
p[-2] == '(' && p[-1] == '_' && p[0] != '_' && p[1] == ')')
|
|
{
|
|
q--;
|
|
*q = '\0';
|
|
p++;
|
|
}
|
|
else
|
|
*q++ = *p;
|
|
}
|
|
}
|
|
|
|
if (last_underscore)
|
|
*q++ = '_';
|
|
|
|
*q = '\0';
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* katze_object_has_property:
|
|
* @object: a #GObject
|
|
* @property: the name of the property
|
|
*
|
|
* Determine if @object has a property with the specified name.
|
|
*
|
|
* Return value: a boolean
|
|
*
|
|
* Since: 0.1.2
|
|
**/
|
|
gboolean
|
|
katze_object_has_property (gpointer object,
|
|
const gchar* property)
|
|
{
|
|
GObjectClass* class;
|
|
|
|
g_return_val_if_fail (G_IS_OBJECT (object), FALSE);
|
|
|
|
class = G_OBJECT_GET_CLASS (object);
|
|
return g_object_class_find_property (class, property) != NULL;
|
|
}
|
|
|
|
/**
|
|
* katze_object_get_boolean:
|
|
* @object: a #GObject
|
|
* @property: the name of the property to get
|
|
*
|
|
* Retrieve the boolean value of the specified property.
|
|
*
|
|
* Return value: a boolean
|
|
**/
|
|
gboolean
|
|
katze_object_get_boolean (gpointer object,
|
|
const gchar* property)
|
|
{
|
|
gboolean value = FALSE;
|
|
|
|
g_return_val_if_fail (G_IS_OBJECT (object), FALSE);
|
|
/* FIXME: Check value type */
|
|
|
|
g_object_get (object, property, &value, NULL);
|
|
return value;
|
|
}
|
|
|
|
/**
|
|
* katze_object_get_int:
|
|
* @object: a #GObject
|
|
* @property: the name of the property to get
|
|
*
|
|
* Retrieve the integer value of the specified property.
|
|
*
|
|
* Return value: an integer
|
|
**/
|
|
gint
|
|
katze_object_get_int (gpointer object,
|
|
const gchar* property)
|
|
{
|
|
gint value = -1;
|
|
|
|
g_return_val_if_fail (G_IS_OBJECT (object), -1);
|
|
/* FIXME: Check value type */
|
|
|
|
g_object_get (object, property, &value, NULL);
|
|
return value;
|
|
}
|
|
|
|
/**
|
|
* katze_object_get_float:
|
|
* @object: a #GObject
|
|
* @property: the name of the property to get
|
|
*
|
|
* Retrieve the float value of the specified property.
|
|
*
|
|
* Return value: a float
|
|
**/
|
|
gfloat
|
|
katze_object_get_float (gpointer object,
|
|
const gchar* property)
|
|
{
|
|
gfloat value = -1.0f;
|
|
|
|
g_return_val_if_fail (G_IS_OBJECT (object), -1.0f);
|
|
/* FIXME: Check value type */
|
|
|
|
g_object_get (object, property, &value, NULL);
|
|
return value;
|
|
}
|
|
|
|
/**
|
|
* katze_object_get_enum:
|
|
* @object: a #GObject
|
|
* @property: the name of the property to get
|
|
*
|
|
* Retrieve the enum value of the specified property.
|
|
*
|
|
* Return value: an enumeration
|
|
**/
|
|
gint
|
|
katze_object_get_enum (gpointer object,
|
|
const gchar* property)
|
|
{
|
|
gint value = -1;
|
|
|
|
g_return_val_if_fail (G_IS_OBJECT (object), -1);
|
|
/* FIXME: Check value type */
|
|
|
|
g_object_get (object, property, &value, NULL);
|
|
return value;
|
|
}
|
|
|
|
/**
|
|
* katze_object_get_string:
|
|
* @object: a #GObject
|
|
* @property: the name of the property to get
|
|
*
|
|
* Retrieve the string value of the specified property.
|
|
*
|
|
* Return value: a newly allocated string
|
|
**/
|
|
gchar*
|
|
katze_object_get_string (gpointer object,
|
|
const gchar* property)
|
|
{
|
|
gchar* value = NULL;
|
|
|
|
g_return_val_if_fail (G_IS_OBJECT (object), NULL);
|
|
/* FIXME: Check value type */
|
|
|
|
g_object_get (object, property, &value, NULL);
|
|
return value;
|
|
}
|
|
|
|
/**
|
|
* katze_object_get_object:
|
|
* @object: a #GObject
|
|
* @property: the name of the property to get
|
|
*
|
|
* Retrieve the object value of the specified property.
|
|
*
|
|
* Return value: an object
|
|
**/
|
|
gpointer
|
|
katze_object_get_object (gpointer object,
|
|
const gchar* property)
|
|
{
|
|
GObject* value = NULL;
|
|
|
|
g_return_val_if_fail (G_IS_OBJECT (object), NULL);
|
|
/* FIXME: Check value type */
|
|
|
|
g_object_get (object, property, &value, NULL);
|
|
return value;
|
|
}
|
|
|
|
/**
|
|
* katze_mkdir_with_parents:
|
|
* @pathname: a pathname in the GLib file name encoding
|
|
* @mode: permissions to use for newly created directories
|
|
*
|
|
* Create a directory if it doesn't already exist. Create intermediate
|
|
* parent directories as needed, too.
|
|
*
|
|
* Similar to g_mkdir_with_parents() but returning early if the
|
|
* @pathname refers to an existing directory.
|
|
*
|
|
* Returns: 0 if the directory already exists, or was successfully
|
|
* created. Returns -1 if an error occurred, with errno set.
|
|
*
|
|
* Since: 0.2.1
|
|
*/
|
|
/* Creating directories recursively
|
|
Copyright 2000 Red Hat, Inc.
|
|
Originally copied from Glib 2.20, coding style adjusted
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Modified to determine file existence early and pathname must be != NULL */
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int
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katze_mkdir_with_parents (const gchar* pathname,
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int mode)
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{
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gchar* fn, *p;
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if (g_file_test (pathname, G_FILE_TEST_EXISTS))
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return 0;
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fn = g_strdup (pathname);
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if (g_path_is_absolute (fn))
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p = (gchar *) g_path_skip_root (fn);
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else
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p = fn;
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do
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{
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while (*p && !G_IS_DIR_SEPARATOR (*p))
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p++;
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if (!*p)
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p = NULL;
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else
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*p = '\0';
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if (!g_file_test (fn, G_FILE_TEST_EXISTS))
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{
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if (g_mkdir (fn, mode) == -1)
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{
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g_free (fn);
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return -1;
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}
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}
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else if (!g_file_test (fn, G_FILE_TEST_IS_DIR))
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{
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g_free (fn);
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return -1;
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}
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if (p)
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{
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*p++ = G_DIR_SEPARATOR;
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while (*p && G_IS_DIR_SEPARATOR (*p))
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p++;
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}
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}
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while (p);
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g_free (fn);
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return 0;
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}
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