forked from AuroraMiddleware/gtk
327 lines
10 KiB
C
327 lines
10 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 2011 Alberto Ruiz <aruiz@gnome.org>
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*
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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 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <glib/gprintf.h>
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#include <string.h>
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#include "gtkfontchooserdialog.h"
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#include "gtkfontchooser.h"
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#include "gtkfontchooserwidget.h"
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#include "gtkfontchooserwidgetprivate.h"
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#include "gtkfontchooserutils.h"
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#include "gtkbox.h"
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#include <glib/gi18n-lib.h>
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#include "gtkbuildable.h"
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#include "gtkprivate.h"
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#include "gtkwidget.h"
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#include "gtksettings.h"
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#include "gtkdialogprivate.h"
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#include "gtktogglebutton.h"
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#include "gtkheaderbar.h"
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#include "gtkactionable.h"
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#include "gtkeventcontrollerkey.h"
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typedef struct _GtkFontChooserDialogClass GtkFontChooserDialogClass;
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struct _GtkFontChooserDialog
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{
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GtkDialog parent_instance;
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GtkWidget *fontchooser;
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GtkWidget *select_button;
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GtkWidget *cancel_button;
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GtkWidget *tweak_button;
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};
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struct _GtkFontChooserDialogClass
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{
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GtkDialogClass parent_class;
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};
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/**
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* GtkFontChooserDialog:
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*
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* The `GtkFontChooserDialog` widget is a dialog for selecting a font.
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*
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* 
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*
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* `GtkFontChooserDialog` implements the [iface@Gtk.FontChooser] interface
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* and does not provide much API of its own.
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*
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* To create a `GtkFontChooserDialog`, use [ctor@Gtk.FontChooserDialog.new].
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*
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* # GtkFontChooserDialog as GtkBuildable
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*
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* The `GtkFontChooserDialog` implementation of the `GtkBuildable`
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* interface exposes the buttons with the names “select_button”
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* and “cancel_button”.
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*/
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static void gtk_font_chooser_dialog_buildable_interface_init (GtkBuildableIface *iface);
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static GObject *gtk_font_chooser_dialog_buildable_get_internal_child (GtkBuildable *buildable,
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GtkBuilder *builder,
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const char *childname);
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G_DEFINE_TYPE_WITH_CODE (GtkFontChooserDialog, gtk_font_chooser_dialog, GTK_TYPE_DIALOG,
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G_IMPLEMENT_INTERFACE (GTK_TYPE_FONT_CHOOSER,
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_gtk_font_chooser_delegate_iface_init)
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G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
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gtk_font_chooser_dialog_buildable_interface_init))
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static GtkBuildableIface *parent_buildable_iface;
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static void
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gtk_font_chooser_dialog_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkFontChooserDialog *dialog = GTK_FONT_CHOOSER_DIALOG (object);
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switch (prop_id)
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{
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default:
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g_object_set_property (G_OBJECT (dialog->fontchooser), pspec->name, value);
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break;
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}
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}
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static void
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gtk_font_chooser_dialog_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkFontChooserDialog *dialog = GTK_FONT_CHOOSER_DIALOG (object);
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switch (prop_id)
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{
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default:
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g_object_get_property (G_OBJECT (dialog->fontchooser), pspec->name, value);
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break;
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}
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}
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static void
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font_activated_cb (GtkFontChooser *fontchooser,
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const char *fontname,
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gpointer user_data)
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{
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GtkDialog *dialog = user_data;
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gtk_dialog_response (dialog, GTK_RESPONSE_OK);
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}
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static gboolean
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dialog_forward_key (GtkEventControllerKey *controller,
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guint keyval,
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guint keycode,
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GdkModifierType modifiers,
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GtkWidget *widget)
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{
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GtkFontChooserDialog *dialog = GTK_FONT_CHOOSER_DIALOG (widget);
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return gtk_event_controller_key_forward (controller, dialog->fontchooser);
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}
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static void
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update_tweak_button (GtkFontChooserDialog *dialog)
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{
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GtkFontChooserLevel level;
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if (!dialog->tweak_button)
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return;
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g_object_get (dialog->fontchooser, "level", &level, NULL);
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if ((level & (GTK_FONT_CHOOSER_LEVEL_FEATURES | GTK_FONT_CHOOSER_LEVEL_VARIATIONS)) != 0)
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gtk_widget_show (dialog->tweak_button);
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else
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gtk_widget_hide (dialog->tweak_button);
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}
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static void
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setup_tweak_button (GtkFontChooserDialog *dialog)
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{
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gboolean use_header;
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if (dialog->tweak_button)
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return;
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g_object_get (dialog, "use-header-bar", &use_header, NULL);
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if (use_header)
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{
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GtkWidget *button;
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GtkWidget *header;
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GActionGroup *actions;
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actions = G_ACTION_GROUP (g_simple_action_group_new ());
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g_action_map_add_action (G_ACTION_MAP (actions), gtk_font_chooser_widget_get_tweak_action (dialog->fontchooser));
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gtk_widget_insert_action_group (GTK_WIDGET (dialog), "font", actions);
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g_object_unref (actions);
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button = gtk_toggle_button_new ();
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gtk_actionable_set_action_name (GTK_ACTIONABLE (button), "font.tweak");
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gtk_widget_set_focus_on_click (button, FALSE);
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gtk_widget_set_valign (button, GTK_ALIGN_CENTER);
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gtk_button_set_icon_name (GTK_BUTTON (button), "emblem-system-symbolic");
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gtk_widget_set_tooltip_text (button, _("Change Font Features"));
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header = gtk_dialog_get_header_bar (GTK_DIALOG (dialog));
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gtk_header_bar_pack_end (GTK_HEADER_BAR (header), button);
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dialog->tweak_button = button;
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update_tweak_button (dialog);
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}
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}
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static void
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gtk_font_chooser_dialog_map (GtkWidget *widget)
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{
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GtkFontChooserDialog *dialog = GTK_FONT_CHOOSER_DIALOG (widget);
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setup_tweak_button (dialog);
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GTK_WIDGET_CLASS (gtk_font_chooser_dialog_parent_class)->map (widget);
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}
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static void
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update_button (GtkFontChooserDialog *dialog)
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{
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PangoFontDescription *desc;
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desc = gtk_font_chooser_get_font_desc (GTK_FONT_CHOOSER (dialog->fontchooser));
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gtk_widget_set_sensitive (dialog->select_button, desc != NULL);
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if (desc)
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pango_font_description_free (desc);
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}
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static void
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gtk_font_chooser_dialog_dispose (GObject *object)
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{
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GtkFontChooserDialog *dialog = GTK_FONT_CHOOSER_DIALOG (object);
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if (dialog->fontchooser)
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{
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g_signal_handlers_disconnect_by_func (dialog->fontchooser,
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update_button,
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dialog);
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g_signal_handlers_disconnect_by_func (dialog->fontchooser,
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update_tweak_button,
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dialog);
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}
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/* tweak_button is not a template child */
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g_clear_pointer (&dialog->tweak_button, gtk_widget_unparent);
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gtk_widget_dispose_template (GTK_WIDGET (dialog), GTK_TYPE_FONT_CHOOSER_DIALOG);
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G_OBJECT_CLASS (gtk_font_chooser_dialog_parent_class)->dispose (object);
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}
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static void
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gtk_font_chooser_dialog_class_init (GtkFontChooserDialogClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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gobject_class->dispose = gtk_font_chooser_dialog_dispose;
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gobject_class->get_property = gtk_font_chooser_dialog_get_property;
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gobject_class->set_property = gtk_font_chooser_dialog_set_property;
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widget_class->map = gtk_font_chooser_dialog_map;
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_gtk_font_chooser_install_properties (gobject_class);
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/* Bind class to template
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*/
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gtk_widget_class_set_template_from_resource (widget_class,
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"/org/gtk/libgtk/ui/gtkfontchooserdialog.ui");
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gtk_widget_class_bind_template_child (widget_class, GtkFontChooserDialog, fontchooser);
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gtk_widget_class_bind_template_child (widget_class, GtkFontChooserDialog, select_button);
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gtk_widget_class_bind_template_child (widget_class, GtkFontChooserDialog, cancel_button);
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gtk_widget_class_bind_template_callback (widget_class, font_activated_cb);
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gtk_widget_class_bind_template_callback (widget_class, dialog_forward_key);
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}
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static void
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gtk_font_chooser_dialog_init (GtkFontChooserDialog *dialog)
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{
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gtk_widget_init_template (GTK_WIDGET (dialog));
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gtk_dialog_set_use_header_bar_from_setting (GTK_DIALOG (dialog));
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_gtk_font_chooser_set_delegate (GTK_FONT_CHOOSER (dialog),
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GTK_FONT_CHOOSER (dialog->fontchooser));
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g_signal_connect_swapped (dialog->fontchooser, "notify::font-desc",
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G_CALLBACK (update_button), dialog);
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update_button (dialog);
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g_signal_connect_swapped (dialog->fontchooser, "notify::level",
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G_CALLBACK (update_tweak_button), dialog);
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}
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/**
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* gtk_font_chooser_dialog_new:
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* @title: (nullable): Title of the dialog
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* @parent: (nullable): Transient parent of the dialog
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*
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* Creates a new `GtkFontChooserDialog`.
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*
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* Returns: a new `GtkFontChooserDialog`
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*/
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GtkWidget*
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gtk_font_chooser_dialog_new (const char *title,
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GtkWindow *parent)
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{
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GtkFontChooserDialog *dialog;
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dialog = g_object_new (GTK_TYPE_FONT_CHOOSER_DIALOG,
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"title", title,
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"transient-for", parent,
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NULL);
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return GTK_WIDGET (dialog);
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}
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static void
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gtk_font_chooser_dialog_buildable_interface_init (GtkBuildableIface *iface)
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{
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parent_buildable_iface = g_type_interface_peek_parent (iface);
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iface->get_internal_child = gtk_font_chooser_dialog_buildable_get_internal_child;
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}
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static GObject *
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gtk_font_chooser_dialog_buildable_get_internal_child (GtkBuildable *buildable,
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GtkBuilder *builder,
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const char *childname)
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{
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GtkFontChooserDialog *dialog = GTK_FONT_CHOOSER_DIALOG (buildable);
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if (g_strcmp0 (childname, "select_button") == 0)
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return G_OBJECT (dialog->select_button);
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else if (g_strcmp0 (childname, "cancel_button") == 0)
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return G_OBJECT (dialog->cancel_button);
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return parent_buildable_iface->get_internal_child (buildable, builder, childname);
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}
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