forked from AuroraMiddleware/gtk
8caadaf404
The change in 740559a54f
to populate the list incrementally
broke initial font selection. Fix that, by trying to select
until the incremental filling is done.
Fixes: #3687
2567 lines
80 KiB
C
2567 lines
80 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 "gtkfontchooserwidget.h"
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#include "gtkfontchooserwidgetprivate.h"
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#include "gtkadjustment.h"
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#include "gtkbuildable.h"
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#include "gtkbox.h"
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#include "gtkbinlayout.h"
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#include "gtkcheckbutton.h"
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#include "gtkcustomfilter.h"
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#include "gtkentry.h"
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#include "gtkfilter.h"
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#include "gtkframe.h"
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#include "gtkgrid.h"
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#include "gtkfontchooser.h"
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#include "gtkfontchooserutils.h"
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#include "gtkintl.h"
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#include "gtklabel.h"
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#include "gtksingleselection.h"
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#include "gtkstack.h"
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#include "gtkprivate.h"
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#include "gtkscale.h"
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#include "gtkscrolledwindow.h"
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#include "gtksearchentry.h"
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#include "gtkspinbutton.h"
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#include "gtktextview.h"
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#include "gtkwidgetprivate.h"
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#include "gtksettings.h"
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#include "gtkdialog.h"
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#include "gtkgestureclick.h"
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#include "gtkeventcontrollerscroll.h"
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#include "gtkroot.h"
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#include "gtkfilterlistmodel.h"
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#include "gtkflattenlistmodel.h"
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#include "gtkslicelistmodel.h"
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#include "gtkmaplistmodel.h"
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#include "gtklistitem.h"
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#include "gtksignallistitemfactory.h"
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#include "gtkstringlist.h"
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#include "gtklistview.h"
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#include "gtksortlistmodel.h"
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#include "gtkstringsorter.h"
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#include <hb-ot.h>
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#if defined(HAVE_PANGOFT) && defined(HAVE_HARFBUZZ)
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#include <pango/pangofc-font.h>
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#endif
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#include "language-names.h"
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#include "script-names.h"
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#include "open-type-layout.h"
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/**
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* GtkFontChooserWidget:
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*
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* The `GtkFontChooserWidget` widget lets the user select a font.
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*
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* It is used in the `GtkFontChooserDialog` widget to provide a
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* dialog for selecting fonts.
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*
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* To set the font which is initially selected, use
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* [method@Gtk.FontChooser.set_font] or [method@Gtk.FontChooser.set_font_desc].
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*
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* To get the selected font use [method@Gtk.FontChooser.get_font] or
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* [method@Gtk.FontChooser.get_font_desc].
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*
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* To change the text which is shown in the preview area, use
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* [method@Gtk.FontChooser.set_preview_text].
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*
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* # CSS nodes
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*
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* `GtkFontChooserWidget` has a single CSS node with name fontchooser.
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*/
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typedef struct _GtkFontChooserWidgetClass GtkFontChooserWidgetClass;
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struct _GtkFontChooserWidget
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{
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GtkWidget parent_instance;
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GtkWidget *stack;
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GtkWidget *grid;
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GtkWidget *search_entry;
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GtkWidget *family_face_list;
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GtkWidget *list_stack;
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GtkSingleSelection *selection;
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GtkCustomFilter *custom_filter;
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GtkCustomFilter *user_filter;
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GtkFilterListModel *filter_model;
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GtkWidget *preview;
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GtkWidget *preview2;
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GtkWidget *font_name_label;
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char *preview_text;
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gboolean show_preview_entry;
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gboolean preview_text_set;
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GtkWidget *size_label;
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GtkWidget *size_spin;
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GtkWidget *size_slider;
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GtkWidget *size_slider2;
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GtkWidget *axis_grid;
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GtkWidget *feature_box;
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GtkFrame *language_button;
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GtkFrame *language_frame;
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GtkWidget *language_list;
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GtkStringList *languages;
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GHashTable *language_table;
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PangoLanguage *filter_language;
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gboolean filter_by_language;
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gboolean filter_by_monospace;
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PangoFontMap *font_map;
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PangoFontDescription *font_desc;
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char *font_features;
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PangoLanguage *language;
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GtkFontFilterFunc filter_func;
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gpointer filter_data;
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GDestroyNotify filter_data_destroy;
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guint last_fontconfig_timestamp;
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GtkFontChooserLevel level;
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GHashTable *axes;
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gboolean updating_variations;
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GList *feature_items;
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GAction *tweak_action;
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};
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struct _GtkFontChooserWidgetClass
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{
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GtkWidgetClass parent_class;
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};
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enum {
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PROP_ZERO,
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PROP_TWEAK_ACTION
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};
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static void gtk_font_chooser_widget_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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static void gtk_font_chooser_widget_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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static void gtk_font_chooser_widget_finalize (GObject *object);
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static char *gtk_font_chooser_widget_get_font (GtkFontChooserWidget *fontchooser);
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static void gtk_font_chooser_widget_set_font (GtkFontChooserWidget *fontchooser,
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const char *fontname);
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static PangoFontDescription *gtk_font_chooser_widget_get_font_desc (GtkFontChooserWidget *fontchooser);
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static void gtk_font_chooser_widget_merge_font_desc(GtkFontChooserWidget *fontchooser,
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const PangoFontDescription *font_desc);
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static void gtk_font_chooser_widget_take_font_desc (GtkFontChooserWidget *fontchooser,
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PangoFontDescription *font_desc);
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static const char *gtk_font_chooser_widget_get_preview_text (GtkFontChooserWidget *fontchooser);
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static void gtk_font_chooser_widget_set_preview_text (GtkFontChooserWidget *fontchooser,
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const char *text);
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static gboolean gtk_font_chooser_widget_get_show_preview_entry (GtkFontChooserWidget *fontchooser);
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static void gtk_font_chooser_widget_set_show_preview_entry (GtkFontChooserWidget *fontchooser,
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gboolean show_preview_entry);
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static void gtk_font_chooser_widget_populate_features (GtkFontChooserWidget *fontchooser);
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static void gtk_font_chooser_widget_set_level (GtkFontChooserWidget *fontchooser,
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GtkFontChooserLevel level);
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static GtkFontChooserLevel gtk_font_chooser_widget_get_level (GtkFontChooserWidget *fontchooser);
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static void gtk_font_chooser_widget_set_language (GtkFontChooserWidget *fontchooser,
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const char *language);
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static void update_font_features (GtkFontChooserWidget *fontchooser);
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static void gtk_font_chooser_widget_iface_init (GtkFontChooserIface *iface);
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G_DEFINE_TYPE_WITH_CODE (GtkFontChooserWidget, gtk_font_chooser_widget, GTK_TYPE_WIDGET,
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G_IMPLEMENT_INTERFACE (GTK_TYPE_FONT_CHOOSER,
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gtk_font_chooser_widget_iface_init))
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static void
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gtk_font_chooser_widget_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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GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (object);
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switch (prop_id)
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{
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case GTK_FONT_CHOOSER_PROP_FONT:
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gtk_font_chooser_widget_set_font (fontchooser, g_value_get_string (value));
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break;
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case GTK_FONT_CHOOSER_PROP_FONT_DESC:
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gtk_font_chooser_widget_take_font_desc (fontchooser, g_value_dup_boxed (value));
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break;
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case GTK_FONT_CHOOSER_PROP_PREVIEW_TEXT:
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gtk_font_chooser_widget_set_preview_text (fontchooser, g_value_get_string (value));
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fontchooser->preview_text_set = TRUE;
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break;
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case GTK_FONT_CHOOSER_PROP_SHOW_PREVIEW_ENTRY:
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gtk_font_chooser_widget_set_show_preview_entry (fontchooser, g_value_get_boolean (value));
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break;
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case GTK_FONT_CHOOSER_PROP_LEVEL:
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gtk_font_chooser_widget_set_level (fontchooser, g_value_get_flags (value));
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break;
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case GTK_FONT_CHOOSER_PROP_LANGUAGE:
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gtk_font_chooser_widget_set_language (fontchooser, g_value_get_string (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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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_widget_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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GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (object);
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switch (prop_id)
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{
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case PROP_TWEAK_ACTION:
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g_value_set_object (value, G_OBJECT (fontchooser->tweak_action));
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break;
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case GTK_FONT_CHOOSER_PROP_FONT:
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g_value_take_string (value, gtk_font_chooser_widget_get_font (fontchooser));
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break;
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case GTK_FONT_CHOOSER_PROP_FONT_DESC:
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g_value_set_boxed (value, gtk_font_chooser_widget_get_font_desc (fontchooser));
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break;
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case GTK_FONT_CHOOSER_PROP_PREVIEW_TEXT:
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g_value_set_string (value, gtk_font_chooser_widget_get_preview_text (fontchooser));
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break;
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case GTK_FONT_CHOOSER_PROP_SHOW_PREVIEW_ENTRY:
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g_value_set_boolean (value, gtk_font_chooser_widget_get_show_preview_entry (fontchooser));
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break;
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case GTK_FONT_CHOOSER_PROP_LEVEL:
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g_value_set_flags (value, gtk_font_chooser_widget_get_level (fontchooser));
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break;
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case GTK_FONT_CHOOSER_PROP_FONT_FEATURES:
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g_value_set_string (value, fontchooser->font_features);
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break;
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case GTK_FONT_CHOOSER_PROP_LANGUAGE:
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g_value_set_string (value, pango_language_to_string (fontchooser->language));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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stop_search_cb (GtkSearchEntry *entry,
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GtkFontChooserWidget *fc)
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{
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if (gtk_editable_get_text (GTK_EDITABLE (entry))[0] != 0)
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gtk_editable_set_text (GTK_EDITABLE (entry), "");
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else
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{
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GtkWidget *dialog;
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GtkWidget *button = NULL;
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dialog = gtk_widget_get_ancestor (GTK_WIDGET (fc), GTK_TYPE_DIALOG);
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if (dialog)
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button = gtk_dialog_get_widget_for_response (GTK_DIALOG (dialog), GTK_RESPONSE_CANCEL);
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if (button)
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gtk_widget_activate (button);
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}
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}
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static void
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size_change_cb (GtkAdjustment *adjustment,
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gpointer user_data)
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{
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GtkFontChooserWidget *fontchooser = user_data;
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PangoFontDescription *font_desc;
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double size = gtk_adjustment_get_value (adjustment);
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font_desc = pango_font_description_new ();
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if (pango_font_description_get_size_is_absolute (fontchooser->font_desc))
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pango_font_description_set_absolute_size (font_desc, size * PANGO_SCALE);
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else
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pango_font_description_set_size (font_desc, size * PANGO_SCALE);
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gtk_font_chooser_widget_take_font_desc (fontchooser, font_desc);
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}
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static gboolean
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output_cb (GtkSpinButton *spin,
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gpointer data)
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{
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GtkAdjustment *adjustment;
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char *text;
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double value;
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adjustment = gtk_spin_button_get_adjustment (spin);
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value = gtk_adjustment_get_value (adjustment);
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text = g_strdup_printf ("%2.4g", value);
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gtk_editable_set_text (GTK_EDITABLE (spin), text);
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g_free (text);
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return TRUE;
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}
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static gboolean
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user_filter_cb (gpointer item,
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gpointer data)
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{
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GtkFontChooserWidget *self = GTK_FONT_CHOOSER_WIDGET (data);
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PangoFontFamily *family;
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PangoFontFace *face;
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if (PANGO_IS_FONT_FAMILY (item))
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{
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family = item;
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face = pango_font_family_get_face (family, NULL);
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}
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else
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{
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face = PANGO_FONT_FACE (item);
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family = pango_font_face_get_family (face);
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}
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if (self->filter_by_monospace &&
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!pango_font_family_is_monospace (family))
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return FALSE;
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#ifdef HAVE_PANGOFT
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if (self->filter_by_language &&
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self->filter_language)
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{
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PangoFontDescription *desc;
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PangoContext *context;
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PangoFont *font;
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gboolean ret;
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desc = pango_font_face_describe (face);
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pango_font_description_set_size (desc, 20);
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context = gtk_widget_get_pango_context (GTK_WIDGET (self));
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font = pango_context_load_font (context, desc);
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ret = TRUE;
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if (PANGO_IS_FC_FONT (font))
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{
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PangoLanguage **langs;
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int i;
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ret = FALSE;
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langs = pango_fc_font_get_languages (PANGO_FC_FONT (font));
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for (i = 0; langs[i]; i++)
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{
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if (langs[i] == self->filter_language)
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{
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ret = TRUE;
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break;
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}
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}
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}
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g_object_unref (font);
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pango_font_description_free (desc);
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return ret;
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}
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#endif
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return TRUE;
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}
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static void
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monospace_check_changed (GtkCheckButton *check,
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GParamSpec *pspec,
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GtkFontChooserWidget *self)
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{
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self->filter_by_monospace = gtk_check_button_get_active (check);
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gtk_filter_changed (GTK_FILTER (self->user_filter),
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self->filter_by_monospace ? GTK_FILTER_CHANGE_MORE_STRICT
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: GTK_FILTER_CHANGE_LESS_STRICT);
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}
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static void
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language_check_changed (GtkCheckButton *check,
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GParamSpec *pspec,
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GtkFontChooserWidget *self)
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{
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self->filter_by_language = gtk_check_button_get_active (check);
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gtk_filter_changed (GTK_FILTER (self->user_filter),
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self->filter_by_language ? GTK_FILTER_CHANGE_MORE_STRICT
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: GTK_FILTER_CHANGE_LESS_STRICT);
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}
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static void
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gtk_font_chooser_widget_update_marks (GtkFontChooserWidget *self)
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{
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GtkAdjustment *adj, *spin_adj;
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const int *sizes;
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int *font_sizes;
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int i, n_sizes;
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double value, spin_value;
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gpointer item;
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item = gtk_single_selection_get_selected_item (self->selection);
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if (item)
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{
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PangoFontFace *face;
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if (PANGO_IS_FONT_FAMILY (item))
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face = pango_font_family_get_face (item, NULL);
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else
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face = item;
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pango_font_face_list_sizes (face, &font_sizes, &n_sizes);
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/* It seems not many fonts actually have a sane set of sizes */
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for (i = 0; i < n_sizes; i++)
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font_sizes[i] = font_sizes[i] / PANGO_SCALE;
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}
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else
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{
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font_sizes = NULL;
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n_sizes = 0;
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}
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if (n_sizes < 2)
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{
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static const int fallback_sizes[] = {
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6, 8, 9, 10, 11, 12, 13, 14, 16, 20, 24, 36, 48, 72
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};
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sizes = fallback_sizes;
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n_sizes = G_N_ELEMENTS (fallback_sizes);
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}
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else
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{
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sizes = font_sizes;
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}
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gtk_scale_clear_marks (GTK_SCALE (self->size_slider));
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gtk_scale_clear_marks (GTK_SCALE (self->size_slider2));
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adj = gtk_range_get_adjustment (GTK_RANGE (self->size_slider));
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spin_adj = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (self->size_spin));
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spin_value = gtk_adjustment_get_value (spin_adj);
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if (spin_value < sizes[0])
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value = (double) sizes[0];
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else if (spin_value > sizes[n_sizes - 1])
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value = (double)sizes[n_sizes - 1];
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else
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value = (double)spin_value;
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|
|
|
/* ensure clamping doesn't callback into font resizing code */
|
|
g_signal_handlers_block_by_func (adj, size_change_cb, self);
|
|
gtk_adjustment_configure (adj,
|
|
value,
|
|
sizes[0],
|
|
sizes[n_sizes - 1],
|
|
gtk_adjustment_get_step_increment (adj),
|
|
gtk_adjustment_get_page_increment (adj),
|
|
gtk_adjustment_get_page_size (adj));
|
|
g_signal_handlers_unblock_by_func (adj, size_change_cb, self);
|
|
|
|
for (i = 0; i < n_sizes; i++)
|
|
{
|
|
gtk_scale_add_mark (GTK_SCALE (self->size_slider),
|
|
sizes[i],
|
|
GTK_POS_BOTTOM, NULL);
|
|
gtk_scale_add_mark (GTK_SCALE (self->size_slider2),
|
|
sizes[i],
|
|
GTK_POS_BOTTOM, NULL);
|
|
}
|
|
|
|
g_free (font_sizes);
|
|
}
|
|
|
|
static void
|
|
row_activated_cb (GtkWidget *view,
|
|
guint pos,
|
|
gpointer user_data)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = user_data;
|
|
char *fontname;
|
|
|
|
fontname = gtk_font_chooser_widget_get_font (fontchooser);
|
|
_gtk_font_chooser_font_activated (GTK_FONT_CHOOSER (fontchooser), fontname);
|
|
g_free (fontname);
|
|
}
|
|
|
|
static void
|
|
resize_by_scroll_cb (GtkEventControllerScroll *controller,
|
|
double dx,
|
|
double dy,
|
|
gpointer user_data)
|
|
{
|
|
GtkFontChooserWidget *self = user_data;
|
|
GtkAdjustment *adj = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (self->size_spin));
|
|
|
|
gtk_adjustment_set_value (adj,
|
|
gtk_adjustment_get_value (adj) +
|
|
gtk_adjustment_get_step_increment (adj) * dx);
|
|
}
|
|
|
|
static void
|
|
maybe_update_preview_text (GtkFontChooserWidget *self,
|
|
PangoFontFace *face,
|
|
PangoFontDescription *desc)
|
|
{
|
|
#if defined(HAVE_PANGOFT) && defined(HAVE_HARFBUZZ)
|
|
PangoContext *context;
|
|
PangoFont *font;
|
|
const char *sample;
|
|
|
|
/* If the user has typed text into the entry, we don't touch it */
|
|
if (self->preview_text_set)
|
|
return;
|
|
|
|
if (self->filter_by_language && self->filter_language)
|
|
{
|
|
sample = pango_language_get_sample_string (self->filter_language);
|
|
gtk_font_chooser_widget_set_preview_text (self, sample);
|
|
return;
|
|
}
|
|
|
|
/* We do the work only once, and cache the result on the PangoFontFace */
|
|
sample = (const char *)g_object_get_data (G_OBJECT (face), "gtk-sample-text");
|
|
if (sample)
|
|
{
|
|
gtk_font_chooser_widget_set_preview_text (self, sample);
|
|
return;
|
|
}
|
|
|
|
context = gtk_widget_get_pango_context (GTK_WIDGET (self));
|
|
font = pango_context_load_font (context, desc);
|
|
|
|
if (PANGO_IS_FC_FONT (font))
|
|
{
|
|
PangoLanguage **languages;
|
|
GHashTable *langs = NULL;
|
|
PangoLanguage *default_lang;
|
|
PangoLanguage *alt_default = NULL;
|
|
PangoLanguage *lang = NULL;
|
|
int i;
|
|
const char *p;
|
|
|
|
default_lang = pango_language_get_default ();
|
|
p = pango_language_to_string (default_lang);
|
|
|
|
/* The default language tends to be of the form en-us.
|
|
* Since fontconfig languages just have the language part,
|
|
* and we want to use direct pointer comparisons, we need
|
|
* an PangoLanguage for the shortened default language.
|
|
*/
|
|
if (strchr (p, '-'))
|
|
{
|
|
char q[10];
|
|
for (i = 0; p[i] != '-' && i < 9; i++)
|
|
q[i] = p[i];
|
|
q[i] = '\0';
|
|
alt_default = pango_language_from_string (q);
|
|
}
|
|
|
|
languages = pango_fc_font_get_languages (PANGO_FC_FONT (font));
|
|
|
|
/* If the font supports the default language, just use it. */
|
|
for (i = 0; languages[i]; i++)
|
|
{
|
|
if (languages[i] == default_lang || languages[i] == alt_default)
|
|
{
|
|
lang = default_lang;
|
|
goto found;
|
|
}
|
|
}
|
|
|
|
/* Otherwise, we make a list of representative languages */
|
|
langs = g_hash_table_new (NULL, NULL);
|
|
|
|
for (i = 0; languages[i]; i++)
|
|
{
|
|
const PangoScript *scripts;
|
|
int num, j;
|
|
|
|
scripts = pango_language_get_scripts (languages[i], &num);
|
|
for (j = 0; j < num; j++)
|
|
{
|
|
lang = pango_script_get_sample_language (scripts[j]);
|
|
if (lang)
|
|
g_hash_table_add (langs, lang);
|
|
}
|
|
}
|
|
|
|
/* ... and compare it to the users default and preferred languages */
|
|
if (g_hash_table_contains (langs, default_lang) ||
|
|
g_hash_table_contains (langs, alt_default))
|
|
{
|
|
lang = default_lang;
|
|
}
|
|
else
|
|
{
|
|
PangoLanguage **preferred;
|
|
|
|
preferred = pango_language_get_preferred ();
|
|
if (preferred)
|
|
{
|
|
for (i = 0; preferred[i]; i++)
|
|
{
|
|
if (g_hash_table_contains (langs, preferred[i]))
|
|
{
|
|
lang = preferred[i];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
g_hash_table_unref (langs);
|
|
|
|
found:
|
|
sample = pango_language_get_sample_string (lang);
|
|
gtk_font_chooser_widget_set_preview_text (self, sample);
|
|
g_object_set_data (G_OBJECT (face), "gtk-sample-text", (gpointer)sample);
|
|
}
|
|
|
|
g_object_unref (font);
|
|
#endif
|
|
}
|
|
|
|
|
|
static void
|
|
selection_changed_cb (GtkSingleSelection *selection,
|
|
GParamSpec *pspec,
|
|
GtkFontChooserWidget *self)
|
|
{
|
|
gpointer item;
|
|
|
|
item = gtk_single_selection_get_selected_item (selection);
|
|
if (item)
|
|
{
|
|
PangoFontFace *face;
|
|
PangoFontDescription *desc;
|
|
|
|
if (PANGO_IS_FONT_FAMILY (item))
|
|
face = pango_font_family_get_face (item, NULL);
|
|
else
|
|
face = item;
|
|
desc = pango_font_face_describe (face);
|
|
pango_font_description_set_variations (self->font_desc, NULL);
|
|
gtk_font_chooser_widget_merge_font_desc (self, desc);
|
|
g_simple_action_set_enabled (G_SIMPLE_ACTION (self->tweak_action), TRUE);
|
|
|
|
maybe_update_preview_text (self, face, desc);
|
|
|
|
pango_font_description_free (desc);
|
|
}
|
|
else
|
|
{
|
|
g_simple_action_set_state (G_SIMPLE_ACTION (self->tweak_action), g_variant_new_boolean (FALSE));
|
|
g_simple_action_set_enabled (G_SIMPLE_ACTION (self->tweak_action), FALSE);
|
|
}
|
|
|
|
g_object_notify (G_OBJECT (self), "font");
|
|
g_object_notify (G_OBJECT (self), "font-desc");
|
|
}
|
|
|
|
static char *
|
|
get_font_name (GObject *ignore,
|
|
gpointer item)
|
|
{
|
|
if (item == NULL)
|
|
return NULL;
|
|
|
|
if (PANGO_IS_FONT_FACE (item))
|
|
{
|
|
return g_strconcat (pango_font_family_get_name (pango_font_face_get_family (item)),
|
|
" ",
|
|
pango_font_face_get_face_name (item),
|
|
NULL);
|
|
}
|
|
else
|
|
{
|
|
return g_strdup (pango_font_family_get_name (item));
|
|
}
|
|
}
|
|
|
|
static PangoAttrList *
|
|
get_font_attributes (GObject *ignore,
|
|
gpointer item)
|
|
{
|
|
PangoAttribute *attribute;
|
|
PangoAttrList *attrs;
|
|
|
|
attrs = pango_attr_list_new ();
|
|
|
|
if (item)
|
|
{
|
|
PangoFontFace *face;
|
|
PangoFontDescription *font_desc;
|
|
|
|
if (PANGO_IS_FONT_FAMILY (item))
|
|
face = pango_font_family_get_face (item, NULL);
|
|
else
|
|
face = item;
|
|
if (face)
|
|
{
|
|
font_desc = pango_font_face_describe (face);
|
|
attribute = pango_attr_font_desc_new (font_desc);
|
|
pango_attr_list_insert (attrs, attribute);
|
|
pango_font_description_free (font_desc);
|
|
}
|
|
}
|
|
|
|
return attrs;
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_update_preview_attributes (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
PangoAttrList *attrs;
|
|
|
|
attrs = pango_attr_list_new ();
|
|
|
|
/* Prevent font fallback */
|
|
pango_attr_list_insert (attrs, pango_attr_fallback_new (FALSE));
|
|
|
|
/* Force current font and features */
|
|
pango_attr_list_insert (attrs, pango_attr_font_desc_new (fontchooser->font_desc));
|
|
if (fontchooser->font_features)
|
|
pango_attr_list_insert (attrs, pango_attr_font_features_new (fontchooser->font_features));
|
|
if (fontchooser->language)
|
|
pango_attr_list_insert (attrs, pango_attr_language_new (fontchooser->language));
|
|
|
|
gtk_entry_set_attributes (GTK_ENTRY (fontchooser->preview), attrs);
|
|
|
|
pango_attr_list_unref (attrs);
|
|
}
|
|
|
|
static void
|
|
rows_changed_cb (GtkFontChooserWidget *self)
|
|
{
|
|
const char *page;
|
|
|
|
if (g_list_model_get_n_items (G_LIST_MODEL (self->selection)) == 0 &&
|
|
gtk_filter_list_model_get_pending (GTK_FILTER_LIST_MODEL (self->filter_model)) == 0)
|
|
page = "empty";
|
|
else
|
|
page = "list";
|
|
|
|
if (strcmp (gtk_stack_get_visible_child_name (GTK_STACK (self->list_stack)), page) != 0)
|
|
gtk_stack_set_visible_child_name (GTK_STACK (self->list_stack), page);
|
|
}
|
|
|
|
static void
|
|
update_key_capture (GtkWidget *chooser)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
|
|
GtkWidget *capture_widget;
|
|
|
|
if (gtk_widget_get_mapped (chooser) &&
|
|
g_str_equal (gtk_stack_get_visible_child_name (GTK_STACK (fontchooser->stack)), "list"))
|
|
{
|
|
GtkWidget *toplevel;
|
|
GtkWidget *focus;
|
|
|
|
toplevel = GTK_WIDGET (gtk_widget_get_root (chooser));
|
|
focus = gtk_root_get_focus (GTK_ROOT (toplevel));
|
|
|
|
if (GTK_IS_EDITABLE (focus) && focus != fontchooser->search_entry)
|
|
capture_widget = NULL;
|
|
else
|
|
capture_widget = chooser;
|
|
}
|
|
else
|
|
capture_widget = NULL;
|
|
|
|
gtk_search_entry_set_key_capture_widget (GTK_SEARCH_ENTRY (fontchooser->search_entry),
|
|
capture_widget);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_map (GtkWidget *widget)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (widget);
|
|
|
|
gtk_editable_set_text (GTK_EDITABLE (fontchooser->search_entry), "");
|
|
gtk_stack_set_visible_child_name (GTK_STACK (fontchooser->stack), "list");
|
|
g_simple_action_set_state (G_SIMPLE_ACTION (fontchooser->tweak_action), g_variant_new_boolean (FALSE));
|
|
|
|
GTK_WIDGET_CLASS (gtk_font_chooser_widget_parent_class)->map (widget);
|
|
|
|
update_key_capture (widget);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_unmap (GtkWidget *widget)
|
|
{
|
|
update_key_capture (widget);
|
|
|
|
GTK_WIDGET_CLASS (gtk_font_chooser_widget_parent_class)->unmap (widget);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_root (GtkWidget *widget)
|
|
{
|
|
GTK_WIDGET_CLASS (gtk_font_chooser_widget_parent_class)->root (widget);
|
|
|
|
g_signal_connect_swapped (gtk_widget_get_root (widget), "notify::focus-widget",
|
|
G_CALLBACK (update_key_capture), widget);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_unroot (GtkWidget *widget)
|
|
{
|
|
g_signal_handlers_disconnect_by_func (gtk_widget_get_root (widget),
|
|
update_key_capture, widget);
|
|
|
|
GTK_WIDGET_CLASS (gtk_font_chooser_widget_parent_class)->unroot (widget);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_dispose (GObject *object)
|
|
{
|
|
GtkFontChooserWidget *self = GTK_FONT_CHOOSER_WIDGET (object);
|
|
|
|
g_signal_handlers_disconnect_by_func (self->selection, rows_changed_cb, self);
|
|
g_signal_handlers_disconnect_by_func (self->filter_model, rows_changed_cb, self);
|
|
|
|
self->filter_func = NULL;
|
|
g_clear_pointer (&self->filter_data, self->filter_data_destroy);
|
|
|
|
g_clear_pointer (&self->stack, gtk_widget_unparent);
|
|
g_clear_pointer (&self->language_table, g_hash_table_unref);
|
|
|
|
G_OBJECT_CLASS (gtk_font_chooser_widget_parent_class)->dispose (object);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_class_init (GtkFontChooserWidgetClass *klass)
|
|
{
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
|
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
|
|
GParamSpec *pspec;
|
|
|
|
g_type_ensure (G_TYPE_THEMED_ICON);
|
|
|
|
widget_class->root = gtk_font_chooser_widget_root;
|
|
widget_class->unroot = gtk_font_chooser_widget_unroot;
|
|
widget_class->map = gtk_font_chooser_widget_map;
|
|
widget_class->unmap = gtk_font_chooser_widget_unmap;
|
|
|
|
gobject_class->finalize = gtk_font_chooser_widget_finalize;
|
|
gobject_class->dispose = gtk_font_chooser_widget_dispose;
|
|
gobject_class->set_property = gtk_font_chooser_widget_set_property;
|
|
gobject_class->get_property = gtk_font_chooser_widget_get_property;
|
|
|
|
/**
|
|
* GtkFontChooserWidget:tweak-action:
|
|
*
|
|
* A toggle action that can be used to switch to the tweak page
|
|
* of the font chooser widget, which lets the user tweak the
|
|
* OpenType features and variation axes of the selected font.
|
|
*
|
|
* The action will be enabled or disabled depending on whether
|
|
* the selected font has any features or axes.
|
|
*/
|
|
pspec = g_param_spec_object ("tweak-action",
|
|
P_("The tweak action"),
|
|
P_("The toggle action to switch to the tweak page"),
|
|
G_TYPE_ACTION,
|
|
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
|
|
g_object_class_install_property (gobject_class, PROP_TWEAK_ACTION, pspec);
|
|
|
|
_gtk_font_chooser_install_properties (gobject_class);
|
|
|
|
/* Bind class to template */
|
|
gtk_widget_class_set_template_from_resource (widget_class,
|
|
"/org/gtk/libgtk/ui/gtkfontchooserwidget.ui");
|
|
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, search_entry);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, family_face_list);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, list_stack);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, filter_model);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, selection);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, custom_filter);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, user_filter);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, preview);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, preview2);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, size_label);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, size_spin);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, size_slider);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, size_slider2);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, stack);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, grid);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, font_name_label);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, feature_box);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, axis_grid);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, language_button);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, language_frame);
|
|
gtk_widget_class_bind_template_child (widget_class, GtkFontChooserWidget, language_list);
|
|
gtk_widget_class_bind_template_callback (widget_class, get_font_name);
|
|
gtk_widget_class_bind_template_callback (widget_class, get_font_attributes);
|
|
gtk_widget_class_bind_template_callback (widget_class, stop_search_cb);
|
|
gtk_widget_class_bind_template_callback (widget_class, row_activated_cb);
|
|
gtk_widget_class_bind_template_callback (widget_class, rows_changed_cb);
|
|
gtk_widget_class_bind_template_callback (widget_class, size_change_cb);
|
|
gtk_widget_class_bind_template_callback (widget_class, output_cb);
|
|
gtk_widget_class_bind_template_callback (widget_class, selection_changed_cb);
|
|
gtk_widget_class_bind_template_callback (widget_class, resize_by_scroll_cb);
|
|
gtk_widget_class_bind_template_callback (widget_class, monospace_check_changed);
|
|
gtk_widget_class_bind_template_callback (widget_class, language_check_changed);
|
|
|
|
gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BIN_LAYOUT);
|
|
gtk_widget_class_set_css_name (widget_class, I_("fontchooser"));
|
|
}
|
|
|
|
static void
|
|
change_tweak (GSimpleAction *action,
|
|
GVariant *state,
|
|
gpointer data)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = data;
|
|
gboolean tweak = g_variant_get_boolean (state);
|
|
|
|
if (tweak)
|
|
{
|
|
gtk_entry_grab_focus_without_selecting (GTK_ENTRY (fontchooser->preview2));
|
|
gtk_stack_set_visible_child_name (GTK_STACK (fontchooser->stack), "tweaks");
|
|
}
|
|
else
|
|
{
|
|
gtk_widget_grab_focus (fontchooser->search_entry);
|
|
gtk_stack_set_visible_child_name (GTK_STACK (fontchooser->stack), "list");
|
|
}
|
|
|
|
g_simple_action_set_state (action, state);
|
|
}
|
|
|
|
typedef struct {
|
|
guint32 tag;
|
|
GtkAdjustment *adjustment;
|
|
GtkWidget *label;
|
|
GtkWidget *scale;
|
|
GtkWidget *spin;
|
|
GtkWidget *fontchooser;
|
|
} Axis;
|
|
|
|
static guint
|
|
axis_hash (gconstpointer v)
|
|
{
|
|
const Axis *a = v;
|
|
|
|
return a->tag;
|
|
}
|
|
|
|
static gboolean
|
|
axis_equal (gconstpointer v1, gconstpointer v2)
|
|
{
|
|
const Axis *a1 = v1;
|
|
const Axis *a2 = v2;
|
|
|
|
return a1->tag == a2->tag;
|
|
}
|
|
|
|
static void
|
|
axis_remove (gpointer key,
|
|
gpointer value,
|
|
gpointer data)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = data;
|
|
Axis *a = value;
|
|
|
|
gtk_grid_remove (GTK_GRID (fontchooser->axis_grid), a->label);
|
|
gtk_grid_remove (GTK_GRID (fontchooser->axis_grid), a->scale);
|
|
gtk_grid_remove (GTK_GRID (fontchooser->axis_grid), a->spin);
|
|
}
|
|
|
|
static void
|
|
axis_free (gpointer v)
|
|
{
|
|
Axis *a = v;
|
|
|
|
g_free (a);
|
|
}
|
|
|
|
#ifdef HAVE_PANGOFT
|
|
static void
|
|
select_added (GListModel *model,
|
|
guint position,
|
|
guint removed,
|
|
guint added,
|
|
gpointer data)
|
|
{
|
|
GtkSingleSelection *selection = GTK_SINGLE_SELECTION (model);
|
|
|
|
g_assert (removed == 0);
|
|
g_assert (added == 1);
|
|
|
|
gtk_single_selection_set_selected (selection, position);
|
|
}
|
|
|
|
static void
|
|
add_languages_from_font (GtkFontChooserWidget *self,
|
|
gpointer item)
|
|
{
|
|
PangoFontFace *face;
|
|
PangoFontDescription *desc;
|
|
PangoFont *font;
|
|
PangoContext *context;
|
|
|
|
if (PANGO_IS_FONT_FAMILY (item))
|
|
face = pango_font_family_get_face (PANGO_FONT_FAMILY (item), NULL);
|
|
else
|
|
face = PANGO_FONT_FACE (item);
|
|
|
|
if (!face)
|
|
return;
|
|
|
|
desc = pango_font_face_describe (face);
|
|
pango_font_description_set_size (desc, 20);
|
|
|
|
context = gtk_widget_get_pango_context (GTK_WIDGET (self));
|
|
font = pango_context_load_font (context, desc);
|
|
|
|
if (PANGO_IS_FC_FONT (font))
|
|
{
|
|
GtkSelectionModel *model = gtk_list_view_get_model (GTK_LIST_VIEW (self->language_list));
|
|
PangoLanguage *default_lang = pango_language_get_default ();
|
|
PangoLanguage **langs;
|
|
int i;
|
|
|
|
langs = pango_fc_font_get_languages (PANGO_FC_FONT (font));
|
|
for (i = 0; langs[i]; i++)
|
|
{
|
|
if (!g_hash_table_contains (self->language_table, langs[i]))
|
|
{
|
|
g_hash_table_add (self->language_table, langs[i]);
|
|
if (get_language_name (langs[i]))
|
|
{
|
|
const char *l = pango_language_to_string (langs[i]);
|
|
gulong id = 0;
|
|
|
|
/* Pre-select the default language */
|
|
if (pango_language_matches (default_lang, l))
|
|
id = g_signal_connect (model, "items-changed", G_CALLBACK (select_added), NULL);
|
|
|
|
gtk_string_list_append (self->languages, l);
|
|
|
|
if (id)
|
|
g_signal_handler_disconnect (model, id);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
g_object_unref (font);
|
|
pango_font_description_free (desc);
|
|
}
|
|
#endif
|
|
|
|
static gboolean
|
|
gtk_font_chooser_widget_ensure_matching_selection (GtkFontChooserWidget *self);
|
|
|
|
/* We incrementally populate our fontlist to prevent blocking
|
|
* the font chooser for a long time with expensive FcFontSort
|
|
* calls in pango for every row in the list).
|
|
*/
|
|
static gboolean
|
|
add_to_fontlist (GtkWidget *widget,
|
|
GdkFrameClock *clock,
|
|
gpointer user_data)
|
|
{
|
|
GtkFontChooserWidget *self = GTK_FONT_CHOOSER_WIDGET (widget);
|
|
GtkSliceListModel *model = user_data;
|
|
GListModel *child_model;
|
|
guint i G_GNUC_UNUSED;
|
|
guint n G_GNUC_UNUSED;
|
|
|
|
if (gtk_filter_list_model_get_model (self->filter_model) != G_LIST_MODEL (model))
|
|
return G_SOURCE_REMOVE;
|
|
|
|
child_model = gtk_slice_list_model_get_model (model);
|
|
|
|
n = gtk_slice_list_model_get_size (model);
|
|
|
|
#ifdef HAVE_PANGOFT
|
|
for (i = n; i < n + 10; i++)
|
|
{
|
|
gpointer item = g_list_model_get_item (child_model, i);
|
|
if (!item)
|
|
break;
|
|
add_languages_from_font (self, item);
|
|
g_object_unref (item);
|
|
}
|
|
#endif
|
|
|
|
n += 10;
|
|
|
|
if (n >= g_list_model_get_n_items (child_model))
|
|
n = G_MAXUINT;
|
|
|
|
gtk_slice_list_model_set_size (model, n);
|
|
|
|
if (gtk_single_selection_get_selected (GTK_SINGLE_SELECTION (self->selection)) == GTK_INVALID_LIST_POSITION)
|
|
gtk_font_chooser_widget_ensure_matching_selection (self);
|
|
|
|
if (n == G_MAXUINT)
|
|
return G_SOURCE_REMOVE;
|
|
else
|
|
return G_SOURCE_CONTINUE;
|
|
}
|
|
|
|
static void
|
|
update_fontlist (GtkFontChooserWidget *self)
|
|
{
|
|
PangoFontMap *fontmap;
|
|
GListModel *model;
|
|
|
|
fontmap = self->font_map;
|
|
if (!fontmap)
|
|
fontmap = pango_cairo_font_map_get_default ();
|
|
|
|
if ((self->level & GTK_FONT_CHOOSER_LEVEL_STYLE) == 0)
|
|
model = g_object_ref (G_LIST_MODEL (fontmap));
|
|
else
|
|
model = G_LIST_MODEL (gtk_flatten_list_model_new (G_LIST_MODEL (g_object_ref (fontmap))));
|
|
|
|
model = G_LIST_MODEL (gtk_slice_list_model_new (model, 0, 20));
|
|
gtk_widget_add_tick_callback (GTK_WIDGET (self), add_to_fontlist, g_object_ref (model), g_object_unref);
|
|
|
|
gtk_filter_list_model_set_model (self->filter_model, model);
|
|
g_object_unref (model);
|
|
}
|
|
|
|
#ifdef HAVE_PANGOFT
|
|
static void
|
|
setup_lang_item (GtkSignalListItemFactory *factory,
|
|
gpointer item,
|
|
gpointer data)
|
|
{
|
|
GtkWidget *label;
|
|
|
|
label = gtk_label_new (NULL);
|
|
gtk_label_set_xalign (GTK_LABEL (label), 0);
|
|
gtk_list_item_set_child (GTK_LIST_ITEM (item), label);
|
|
}
|
|
|
|
static void
|
|
bind_lang_item (GtkSignalListItemFactory *factory,
|
|
gpointer item,
|
|
gpointer data)
|
|
{
|
|
GtkWidget *label;
|
|
gpointer obj;
|
|
const char *str;
|
|
PangoLanguage *language;
|
|
const char *name;
|
|
|
|
obj = gtk_list_item_get_item (GTK_LIST_ITEM (item));
|
|
str = gtk_string_object_get_string (GTK_STRING_OBJECT (obj));
|
|
|
|
language = pango_language_from_string (str);
|
|
name = get_language_name (language);
|
|
|
|
label = gtk_list_item_get_child (GTK_LIST_ITEM (item));
|
|
gtk_label_set_label (GTK_LABEL (label), name);
|
|
}
|
|
|
|
static char *
|
|
get_lang_name (gpointer this,
|
|
const char *lang)
|
|
{
|
|
return g_strdup (get_language_name (pango_language_from_string (lang)));
|
|
}
|
|
|
|
static void
|
|
language_selection_changed (GtkSelectionModel *model,
|
|
guint position,
|
|
guint n_items,
|
|
GtkFontChooserWidget *self)
|
|
{
|
|
gpointer obj;
|
|
|
|
obj = gtk_single_selection_get_selected_item (GTK_SINGLE_SELECTION (model));
|
|
|
|
if (obj)
|
|
self->filter_language = pango_language_from_string (gtk_string_object_get_string (obj));
|
|
else
|
|
self->filter_language = NULL;
|
|
|
|
if (self->filter_by_language)
|
|
gtk_filter_changed (GTK_FILTER (self->user_filter), GTK_FILTER_CHANGE_DIFFERENT);
|
|
}
|
|
|
|
static gboolean
|
|
setup_language_list (GtkFontChooserWidget *self)
|
|
{
|
|
GtkListItemFactory *factory;
|
|
GtkExpression *expression;
|
|
GListModel *model;
|
|
GtkSelectionModel *selection;
|
|
|
|
self->languages = gtk_string_list_new (NULL);
|
|
self->language_table = g_hash_table_new (NULL, NULL);
|
|
|
|
expression = gtk_property_expression_new (GTK_TYPE_STRING_OBJECT, NULL, "string");
|
|
expression = gtk_cclosure_expression_new (G_TYPE_STRING, NULL, 1, &expression, (GCallback)get_lang_name, NULL, NULL);
|
|
|
|
model = G_LIST_MODEL (gtk_sort_list_model_new (G_LIST_MODEL (self->languages),
|
|
GTK_SORTER (gtk_string_sorter_new (expression))));
|
|
|
|
selection = GTK_SELECTION_MODEL (gtk_single_selection_new (model));
|
|
g_signal_connect (selection, "selection-changed", G_CALLBACK (language_selection_changed), self);
|
|
gtk_list_view_set_model (GTK_LIST_VIEW (self->language_list), selection);
|
|
g_object_unref (selection);
|
|
|
|
factory = gtk_signal_list_item_factory_new ();
|
|
g_signal_connect (factory, "setup", G_CALLBACK (setup_lang_item), self);
|
|
g_signal_connect (factory, "bind", G_CALLBACK (bind_lang_item), self);
|
|
gtk_list_view_set_factory (GTK_LIST_VIEW (self->language_list), factory);
|
|
g_object_unref (factory);
|
|
|
|
return TRUE;
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
gtk_font_chooser_widget_init (GtkFontChooserWidget *self)
|
|
{
|
|
gtk_widget_init_template (GTK_WIDGET (self));
|
|
|
|
self->axes = g_hash_table_new_full (axis_hash, axis_equal, NULL, axis_free);
|
|
|
|
/* Default preview string */
|
|
self->preview_text = g_strdup (pango_language_get_sample_string (NULL));
|
|
self->show_preview_entry = TRUE;
|
|
self->font_desc = pango_font_description_new ();
|
|
self->level = GTK_FONT_CHOOSER_LEVEL_FAMILY |
|
|
GTK_FONT_CHOOSER_LEVEL_STYLE |
|
|
GTK_FONT_CHOOSER_LEVEL_SIZE;
|
|
self->language = pango_language_get_default ();
|
|
|
|
/* Set default preview text */
|
|
gtk_editable_set_text (GTK_EDITABLE (self->preview), self->preview_text);
|
|
|
|
gtk_font_chooser_widget_update_preview_attributes (self);
|
|
|
|
/* Set the upper values of the spin/scale with G_MAXINT / PANGO_SCALE */
|
|
gtk_spin_button_set_range (GTK_SPIN_BUTTON (self->size_spin),
|
|
1.0, (double)(G_MAXINT / PANGO_SCALE));
|
|
gtk_adjustment_set_upper (gtk_range_get_adjustment (GTK_RANGE (self->size_slider)),
|
|
(double)(G_MAXINT / PANGO_SCALE));
|
|
|
|
self->tweak_action = G_ACTION (g_simple_action_new_stateful ("tweak", NULL, g_variant_new_boolean (FALSE)));
|
|
g_signal_connect (self->tweak_action, "change-state", G_CALLBACK (change_tweak), self);
|
|
|
|
update_fontlist (self);
|
|
|
|
/* Load data and set initial style-dependent parameters */
|
|
gtk_font_chooser_widget_populate_features (self);
|
|
|
|
gtk_font_chooser_widget_take_font_desc (self, NULL);
|
|
|
|
gtk_custom_filter_set_filter_func (self->user_filter, user_filter_cb, self, NULL);
|
|
|
|
#ifdef HAVE_PANGOFT
|
|
setup_language_list (self);
|
|
#else
|
|
gtk_widget_hide (GTK_WIDGET (self->language_button));
|
|
gtk_widget_hide (GTK_WIDGET (self->language_frame));
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* gtk_font_chooser_widget_new:
|
|
*
|
|
* Creates a new `GtkFontChooserWidget`.
|
|
*
|
|
* Returns: a new `GtkFontChooserWidget`
|
|
*/
|
|
GtkWidget *
|
|
gtk_font_chooser_widget_new (void)
|
|
{
|
|
return g_object_new (GTK_TYPE_FONT_CHOOSER_WIDGET, NULL);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_finalize (GObject *object)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (object);
|
|
|
|
if (fontchooser->font_desc)
|
|
pango_font_description_free (fontchooser->font_desc);
|
|
|
|
if (fontchooser->filter_data_destroy)
|
|
fontchooser->filter_data_destroy (fontchooser->filter_data);
|
|
|
|
g_free (fontchooser->preview_text);
|
|
|
|
g_clear_object (&fontchooser->font_map);
|
|
|
|
g_object_unref (fontchooser->tweak_action);
|
|
|
|
g_list_free_full (fontchooser->feature_items, g_free);
|
|
|
|
g_hash_table_unref (fontchooser->axes);
|
|
|
|
g_free (fontchooser->font_features);
|
|
|
|
G_OBJECT_CLASS (gtk_font_chooser_widget_parent_class)->finalize (object);
|
|
}
|
|
|
|
static gboolean
|
|
my_pango_font_family_equal (const char *familya,
|
|
const char *familyb)
|
|
{
|
|
return g_ascii_strcasecmp (familya, familyb) == 0;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_font_chooser_widget_ensure_matching_selection (GtkFontChooserWidget *self)
|
|
{
|
|
const char *desc_family;
|
|
guint i, n;
|
|
|
|
desc_family = pango_font_description_get_family (self->font_desc);
|
|
if (desc_family == NULL)
|
|
{
|
|
gtk_single_selection_set_selected (self->selection, GTK_INVALID_LIST_POSITION);
|
|
return TRUE;
|
|
}
|
|
|
|
n = g_list_model_get_n_items (G_LIST_MODEL (self->selection));
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
gpointer item;
|
|
PangoFontFace *face;
|
|
PangoFontFamily *family;
|
|
PangoFontDescription *merged;
|
|
|
|
item = g_list_model_get_item (G_LIST_MODEL (self->selection), i);
|
|
g_object_unref (item);
|
|
|
|
if (PANGO_IS_FONT_FAMILY (item))
|
|
{
|
|
family = item;
|
|
face = pango_font_family_get_face (family, NULL);
|
|
}
|
|
else
|
|
{
|
|
face = item;
|
|
family = pango_font_face_get_family (face);
|
|
}
|
|
if (!my_pango_font_family_equal (desc_family, pango_font_family_get_name (family)))
|
|
continue;
|
|
|
|
merged = pango_font_face_describe (face);
|
|
pango_font_description_merge_static (merged, self->font_desc, FALSE);
|
|
|
|
if (pango_font_description_equal (merged, self->font_desc))
|
|
{
|
|
pango_font_description_free (merged);
|
|
break;
|
|
}
|
|
|
|
pango_font_description_free (merged);
|
|
}
|
|
|
|
if (i < n)
|
|
{
|
|
gtk_single_selection_set_selected (self->selection, i);
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static PangoFontFace *
|
|
gtk_font_chooser_widget_get_face (GtkFontChooser *chooser)
|
|
{
|
|
GtkFontChooserWidget *self = GTK_FONT_CHOOSER_WIDGET (chooser);
|
|
gpointer item;
|
|
|
|
item = gtk_single_selection_get_selected_item (self->selection);
|
|
if (PANGO_IS_FONT_FAMILY (item))
|
|
return pango_font_family_get_face (item, NULL);
|
|
else
|
|
return item;
|
|
}
|
|
|
|
static PangoFontFamily *
|
|
gtk_font_chooser_widget_get_family (GtkFontChooser *chooser)
|
|
{
|
|
GtkFontChooserWidget *self = GTK_FONT_CHOOSER_WIDGET (chooser);
|
|
gpointer item;
|
|
|
|
item = gtk_single_selection_get_selected_item (self->selection);
|
|
if (item == NULL)
|
|
return NULL;
|
|
|
|
if (PANGO_IS_FONT_FAMILY (item))
|
|
return item;
|
|
else
|
|
return pango_font_face_get_family (item);
|
|
}
|
|
|
|
static int
|
|
gtk_font_chooser_widget_get_size (GtkFontChooser *chooser)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
|
|
PangoFontDescription *desc = gtk_font_chooser_widget_get_font_desc (fontchooser);
|
|
|
|
if (desc)
|
|
return pango_font_description_get_size (desc);
|
|
|
|
return -1;
|
|
}
|
|
|
|
static char *
|
|
gtk_font_chooser_widget_get_font (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
PangoFontDescription *desc = gtk_font_chooser_widget_get_font_desc (fontchooser);
|
|
|
|
if (desc)
|
|
return pango_font_description_to_string (desc);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static PangoFontDescription *
|
|
gtk_font_chooser_widget_get_font_desc (GtkFontChooserWidget *self)
|
|
{
|
|
if (gtk_single_selection_get_selected_item (self->selection))
|
|
return self->font_desc;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_set_font (GtkFontChooserWidget *fontchooser,
|
|
const char *fontname)
|
|
{
|
|
PangoFontDescription *font_desc;
|
|
|
|
font_desc = pango_font_description_from_string (fontname);
|
|
gtk_font_chooser_widget_take_font_desc (fontchooser, font_desc);
|
|
}
|
|
|
|
/* OpenType variations */
|
|
|
|
static void
|
|
add_font_variations (GtkFontChooserWidget *fontchooser,
|
|
GString *s)
|
|
{
|
|
GHashTableIter iter;
|
|
Axis *axis;
|
|
const char *sep = "";
|
|
char buf[G_ASCII_DTOSTR_BUF_SIZE];
|
|
|
|
g_hash_table_iter_init (&iter, fontchooser->axes);
|
|
while (g_hash_table_iter_next (&iter, (gpointer *)NULL, (gpointer *)&axis))
|
|
{
|
|
char tag[5];
|
|
double value;
|
|
|
|
tag[0] = (axis->tag >> 24) & 0xff;
|
|
tag[1] = (axis->tag >> 16) & 0xff;
|
|
tag[2] = (axis->tag >> 8) & 0xff;
|
|
tag[3] = (axis->tag >> 0) & 0xff;
|
|
tag[4] = '\0';
|
|
value = gtk_adjustment_get_value (axis->adjustment);
|
|
g_string_append_printf (s, "%s%s=%s", sep, tag, g_ascii_dtostr (buf, sizeof(buf), value));
|
|
sep = ",";
|
|
}
|
|
}
|
|
|
|
static void
|
|
adjustment_changed (GtkAdjustment *adjustment,
|
|
Axis *axis)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (axis->fontchooser);
|
|
PangoFontDescription *font_desc;
|
|
GString *s;
|
|
|
|
fontchooser->updating_variations = TRUE;
|
|
|
|
s = g_string_new ("");
|
|
add_font_variations (fontchooser, s);
|
|
|
|
if (s->len > 0)
|
|
{
|
|
font_desc = pango_font_description_new ();
|
|
pango_font_description_set_variations (font_desc, s->str);
|
|
gtk_font_chooser_widget_take_font_desc (fontchooser, font_desc);
|
|
}
|
|
|
|
g_string_free (s, TRUE);
|
|
|
|
fontchooser->updating_variations = FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
should_show_axis (hb_ot_var_axis_info_t *ax)
|
|
{
|
|
if (ax->flags & HB_OT_VAR_AXIS_FLAG_HIDDEN)
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
is_named_instance (hb_font_t *font)
|
|
{
|
|
/* FIXME */
|
|
return FALSE;
|
|
}
|
|
|
|
static struct {
|
|
guint32 tag;
|
|
const char *name;
|
|
} axis_names[] = {
|
|
{ HB_OT_TAG_VAR_AXIS_WIDTH, N_("Width") },
|
|
{ HB_OT_TAG_VAR_AXIS_WEIGHT, N_("Weight") },
|
|
{ HB_OT_TAG_VAR_AXIS_ITALIC, N_("Italic") },
|
|
{ HB_OT_TAG_VAR_AXIS_SLANT, N_("Slant") },
|
|
{ HB_OT_TAG_VAR_AXIS_OPTICAL_SIZE, N_("Optical Size") },
|
|
};
|
|
|
|
static gboolean
|
|
add_axis (GtkFontChooserWidget *fontchooser,
|
|
hb_font_t *hb_font,
|
|
hb_ot_var_axis_info_t *ax,
|
|
int value,
|
|
int row)
|
|
{
|
|
hb_face_t *hb_face;
|
|
Axis *axis;
|
|
const char *name;
|
|
char buffer[20];
|
|
unsigned int buffer_len = 20;
|
|
int i;
|
|
|
|
hb_face = hb_font_get_face (hb_font);
|
|
|
|
axis = g_new (Axis, 1);
|
|
axis->tag = ax->tag;
|
|
axis->fontchooser = GTK_WIDGET (fontchooser);
|
|
|
|
hb_ot_name_get_utf8 (hb_face, ax->name_id, HB_LANGUAGE_INVALID, &buffer_len, buffer);
|
|
name = buffer;
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (axis_names); i++)
|
|
{
|
|
if (axis_names[i].tag == ax->tag)
|
|
{
|
|
name = _(axis_names[i].name);
|
|
break;
|
|
}
|
|
}
|
|
|
|
axis->label = gtk_label_new (name);
|
|
|
|
gtk_widget_set_halign (axis->label, GTK_ALIGN_START);
|
|
gtk_widget_set_valign (axis->label, GTK_ALIGN_BASELINE);
|
|
gtk_grid_attach (GTK_GRID (fontchooser->axis_grid), axis->label, 0, row, 1, 1);
|
|
axis->adjustment = gtk_adjustment_new ((double)value,
|
|
(double)ax->min_value,
|
|
(double)ax->max_value,
|
|
1.0, 10.0, 0.0);
|
|
axis->scale = gtk_scale_new (GTK_ORIENTATION_HORIZONTAL, axis->adjustment);
|
|
gtk_scale_add_mark (GTK_SCALE (axis->scale), (double)ax->default_value, GTK_POS_TOP, NULL);
|
|
gtk_widget_set_valign (axis->scale, GTK_ALIGN_BASELINE);
|
|
gtk_widget_set_hexpand (axis->scale, TRUE);
|
|
gtk_widget_set_size_request (axis->scale, 100, -1);
|
|
gtk_scale_set_draw_value (GTK_SCALE (axis->scale), FALSE);
|
|
gtk_grid_attach (GTK_GRID (fontchooser->axis_grid), axis->scale, 1, row, 1, 1);
|
|
axis->spin = gtk_spin_button_new (axis->adjustment, 0, 0);
|
|
g_signal_connect (axis->spin, "output", G_CALLBACK (output_cb), fontchooser);
|
|
gtk_widget_set_valign (axis->spin, GTK_ALIGN_BASELINE);
|
|
gtk_grid_attach (GTK_GRID (fontchooser->axis_grid), axis->spin, 2, row, 1, 1);
|
|
|
|
g_hash_table_add (fontchooser->axes, axis);
|
|
|
|
adjustment_changed (axis->adjustment, axis);
|
|
g_signal_connect (axis->adjustment, "value-changed", G_CALLBACK (adjustment_changed), axis);
|
|
if (is_named_instance (hb_font) || !should_show_axis (ax))
|
|
{
|
|
gtk_widget_hide (axis->label);
|
|
gtk_widget_hide (axis->scale);
|
|
gtk_widget_hide (axis->spin);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* FIXME: This doesn't work if the font has an avar table */
|
|
static float
|
|
denorm_coord (hb_ot_var_axis_info_t *axis, int coord)
|
|
{
|
|
float r = coord / 16384.0;
|
|
|
|
if (coord < 0)
|
|
return axis->default_value + r * (axis->default_value - axis->min_value);
|
|
else
|
|
return axis->default_value + r * (axis->max_value - axis->default_value);
|
|
}
|
|
|
|
static gboolean
|
|
gtk_font_chooser_widget_update_font_variations (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
PangoFont *pango_font;
|
|
hb_font_t *hb_font;
|
|
hb_face_t *hb_face;
|
|
const int *coords;
|
|
unsigned int n_coords;
|
|
unsigned int n_axes;
|
|
hb_ot_var_axis_info_t *axes;
|
|
gboolean has_axis = FALSE;
|
|
int i;
|
|
|
|
if (fontchooser->updating_variations)
|
|
return FALSE;
|
|
|
|
g_hash_table_foreach (fontchooser->axes, axis_remove, fontchooser);
|
|
g_hash_table_remove_all (fontchooser->axes);
|
|
|
|
if ((fontchooser->level & GTK_FONT_CHOOSER_LEVEL_VARIATIONS) == 0)
|
|
return FALSE;
|
|
|
|
pango_font = pango_context_load_font (gtk_widget_get_pango_context (GTK_WIDGET (fontchooser)),
|
|
fontchooser->font_desc);
|
|
hb_font = pango_font_get_hb_font (pango_font);
|
|
hb_face = hb_font_get_face (hb_font);
|
|
|
|
if (!hb_ot_var_has_data (hb_face))
|
|
return FALSE;
|
|
|
|
coords = hb_font_get_var_coords_normalized (hb_font, &n_coords);
|
|
|
|
n_axes = hb_ot_var_get_axis_count (hb_face);
|
|
axes = g_new0 (hb_ot_var_axis_info_t, n_axes);
|
|
hb_ot_var_get_axis_infos (hb_face, 0, &n_axes, axes);
|
|
|
|
for (i = 0; i < n_axes; i++)
|
|
{
|
|
float value;
|
|
if (coords && i < n_coords)
|
|
value = denorm_coord (&axes[i], coords[i]);
|
|
else
|
|
value = axes[i].default_value;
|
|
if (add_axis (fontchooser, hb_font, &axes[i], value, i + 4))
|
|
has_axis = TRUE;
|
|
}
|
|
|
|
g_free (axes);
|
|
g_object_unref (pango_font);
|
|
|
|
return has_axis;
|
|
}
|
|
|
|
/* OpenType features */
|
|
|
|
/* look for a lang / script combination that matches the
|
|
* language property and is supported by the hb_face. If
|
|
* none is found, return the default lang / script tags.
|
|
*/
|
|
static void
|
|
find_language_and_script (GtkFontChooserWidget *fontchooser,
|
|
hb_face_t *hb_face,
|
|
hb_tag_t *lang_tag,
|
|
hb_tag_t *script_tag)
|
|
{
|
|
int i, j, k;
|
|
hb_tag_t scripts[80];
|
|
unsigned int n_scripts;
|
|
unsigned int count;
|
|
hb_tag_t table[2] = { HB_OT_TAG_GSUB, HB_OT_TAG_GPOS };
|
|
hb_language_t lang;
|
|
const char *langname, *p;
|
|
|
|
langname = pango_language_to_string (fontchooser->language);
|
|
p = strchr (langname, '-');
|
|
lang = hb_language_from_string (langname, p ? p - langname : -1);
|
|
|
|
n_scripts = 0;
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
count = G_N_ELEMENTS (scripts);
|
|
hb_ot_layout_table_get_script_tags (hb_face, table[i], n_scripts, &count, scripts);
|
|
n_scripts += count;
|
|
}
|
|
|
|
for (j = 0; j < n_scripts; j++)
|
|
{
|
|
hb_tag_t languages[80];
|
|
unsigned int n_languages;
|
|
|
|
n_languages = 0;
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
count = G_N_ELEMENTS (languages);
|
|
hb_ot_layout_script_get_language_tags (hb_face, table[i], j, n_languages, &count, languages);
|
|
n_languages += count;
|
|
}
|
|
|
|
for (k = 0; k < n_languages; k++)
|
|
{
|
|
if (lang == hb_ot_tag_to_language (languages[k]))
|
|
{
|
|
*script_tag = scripts[j];
|
|
*lang_tag = languages[k];
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
*lang_tag = HB_OT_TAG_DEFAULT_LANGUAGE;
|
|
*script_tag = HB_OT_TAG_DEFAULT_SCRIPT;
|
|
}
|
|
|
|
typedef struct {
|
|
hb_tag_t tag;
|
|
const char *name;
|
|
GtkWidget *top;
|
|
GtkWidget *feat;
|
|
GtkWidget *example;
|
|
} FeatureItem;
|
|
|
|
static const char *
|
|
get_feature_display_name (hb_tag_t tag)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (open_type_layout_features); i++)
|
|
{
|
|
if (tag == open_type_layout_features[i].tag)
|
|
return g_dpgettext2 (NULL, "OpenType layout", open_type_layout_features[i].name);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
set_inconsistent (GtkCheckButton *button,
|
|
gboolean inconsistent)
|
|
{
|
|
gtk_check_button_set_inconsistent (GTK_CHECK_BUTTON (button), inconsistent);
|
|
gtk_widget_set_opacity (gtk_widget_get_first_child (GTK_WIDGET (button)), inconsistent ? 0.0 : 1.0);
|
|
}
|
|
|
|
static void
|
|
feat_pressed (GtkGestureClick *gesture,
|
|
int n_press,
|
|
double x,
|
|
double y,
|
|
GtkWidget *feat)
|
|
{
|
|
const guint button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture));
|
|
|
|
if (button == GDK_BUTTON_PRIMARY)
|
|
{
|
|
g_signal_handlers_block_by_func (feat, feat_pressed, NULL);
|
|
|
|
if (gtk_check_button_get_inconsistent (GTK_CHECK_BUTTON (feat)))
|
|
{
|
|
set_inconsistent (GTK_CHECK_BUTTON (feat), FALSE);
|
|
gtk_check_button_set_active (GTK_CHECK_BUTTON (feat), TRUE);
|
|
}
|
|
|
|
g_signal_handlers_unblock_by_func (feat, feat_pressed, NULL);
|
|
}
|
|
else if (button == GDK_BUTTON_SECONDARY)
|
|
{
|
|
gboolean inconsistent = gtk_check_button_get_inconsistent (GTK_CHECK_BUTTON (feat));
|
|
set_inconsistent (GTK_CHECK_BUTTON (feat), !inconsistent);
|
|
}
|
|
}
|
|
|
|
static char *
|
|
find_affected_text (hb_tag_t feature_tag,
|
|
hb_font_t *hb_font,
|
|
hb_tag_t script_tag,
|
|
hb_tag_t lang_tag,
|
|
int max_chars)
|
|
{
|
|
hb_face_t *hb_face;
|
|
unsigned int script_index = 0;
|
|
unsigned int lang_index = 0;
|
|
unsigned int feature_index = 0;
|
|
GString *chars;
|
|
|
|
hb_face = hb_font_get_face (hb_font);
|
|
|
|
chars = g_string_new ("");
|
|
|
|
hb_ot_layout_table_find_script (hb_face, HB_OT_TAG_GSUB, script_tag, &script_index);
|
|
|
|
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
|
|
hb_ot_layout_script_find_language (hb_face, HB_OT_TAG_GSUB, script_index, lang_tag, &lang_index);
|
|
G_GNUC_END_IGNORE_DEPRECATIONS
|
|
|
|
if (hb_ot_layout_language_find_feature (hb_face, HB_OT_TAG_GSUB, script_index, lang_index, feature_tag, &feature_index))
|
|
{
|
|
unsigned int lookup_indexes[32];
|
|
unsigned int lookup_count = 32;
|
|
int count;
|
|
int n_chars = 0;
|
|
|
|
count = hb_ot_layout_feature_get_lookups (hb_face,
|
|
HB_OT_TAG_GSUB,
|
|
feature_index,
|
|
0,
|
|
&lookup_count,
|
|
lookup_indexes);
|
|
if (count > 0)
|
|
{
|
|
hb_set_t* glyphs_before = NULL;
|
|
hb_set_t* glyphs_input = NULL;
|
|
hb_set_t* glyphs_after = NULL;
|
|
hb_set_t* glyphs_output = NULL;
|
|
hb_codepoint_t gid;
|
|
|
|
glyphs_input = hb_set_create ();
|
|
|
|
// XXX For now, just look at first index
|
|
hb_ot_layout_lookup_collect_glyphs (hb_face,
|
|
HB_OT_TAG_GSUB,
|
|
lookup_indexes[0],
|
|
glyphs_before,
|
|
glyphs_input,
|
|
glyphs_after,
|
|
glyphs_output);
|
|
|
|
gid = -1;
|
|
while (hb_set_next (glyphs_input, &gid)) {
|
|
hb_codepoint_t ch;
|
|
if (n_chars == max_chars)
|
|
{
|
|
g_string_append (chars, "…");
|
|
break;
|
|
}
|
|
for (ch = 0; ch < 0xffff; ch++) {
|
|
hb_codepoint_t glyph = 0;
|
|
hb_font_get_nominal_glyph (hb_font, ch, &glyph);
|
|
if (glyph == gid) {
|
|
g_string_append_unichar (chars, (gunichar)ch);
|
|
n_chars++;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
hb_set_destroy (glyphs_input);
|
|
}
|
|
}
|
|
|
|
return g_string_free (chars, FALSE);
|
|
}
|
|
|
|
static void
|
|
update_feature_example (FeatureItem *item,
|
|
hb_font_t *hb_font,
|
|
hb_tag_t script_tag,
|
|
hb_tag_t lang_tag,
|
|
PangoFontDescription *font_desc)
|
|
{
|
|
const char *letter_case[] = { "smcp", "c2sc", "pcap", "c2pc", "unic", "cpsp", "case", NULL };
|
|
const char *number_case[] = { "xxxx", "lnum", "onum", NULL };
|
|
const char *number_spacing[] = { "xxxx", "pnum", "tnum", NULL };
|
|
const char *number_formatting[] = { "zero", "nalt", "frac", NULL };
|
|
const char *char_variants[] = {
|
|
"swsh", "cswh", "calt", "falt", "hist", "salt", "jalt", "titl", "rand",
|
|
"ss01", "ss02", "ss03", "ss04", "ss05", "ss06", "ss07", "ss08", "ss09", "ss10",
|
|
"ss11", "ss12", "ss13", "ss14", "ss15", "ss16", "ss17", "ss18", "ss19", "ss20",
|
|
NULL };
|
|
|
|
if (g_strv_contains (number_case, item->name) ||
|
|
g_strv_contains (number_spacing, item->name))
|
|
{
|
|
PangoAttrList *attrs;
|
|
PangoAttribute *attr;
|
|
PangoFontDescription *desc;
|
|
char *str;
|
|
|
|
attrs = pango_attr_list_new ();
|
|
|
|
desc = pango_font_description_copy (font_desc);
|
|
pango_font_description_unset_fields (desc, PANGO_FONT_MASK_SIZE);
|
|
pango_attr_list_insert (attrs, pango_attr_font_desc_new (desc));
|
|
pango_font_description_free (desc);
|
|
str = g_strconcat (item->name, " 1", NULL);
|
|
attr = pango_attr_font_features_new (str);
|
|
pango_attr_list_insert (attrs, attr);
|
|
|
|
gtk_label_set_text (GTK_LABEL (item->example), "0123456789");
|
|
gtk_label_set_attributes (GTK_LABEL (item->example), attrs);
|
|
|
|
pango_attr_list_unref (attrs);
|
|
}
|
|
else if (g_strv_contains (letter_case, item->name) ||
|
|
g_strv_contains (number_formatting, item->name) ||
|
|
g_strv_contains (char_variants, item->name))
|
|
{
|
|
char *input = NULL;
|
|
char *text;
|
|
|
|
if (strcmp (item->name, "case") == 0)
|
|
input = g_strdup ("A-B[Cq]");
|
|
else if (g_strv_contains (letter_case, item->name))
|
|
input = g_strdup ("AaBbCc…");
|
|
else if (strcmp (item->name, "zero") == 0)
|
|
input = g_strdup ("0");
|
|
else if (strcmp (item->name, "frac") == 0)
|
|
input = g_strdup ("1/2 2/3 7/8");
|
|
else if (strcmp (item->name, "nalt") == 0)
|
|
input = find_affected_text (item->tag, hb_font, script_tag, lang_tag, 3);
|
|
else
|
|
input = find_affected_text (item->tag, hb_font, script_tag, lang_tag, 10);
|
|
|
|
if (input[0] != '\0')
|
|
{
|
|
PangoAttrList *attrs;
|
|
PangoAttribute *attr;
|
|
PangoFontDescription *desc;
|
|
char *str;
|
|
|
|
text = g_strconcat (input, " ⟶ ", input, NULL);
|
|
|
|
attrs = pango_attr_list_new ();
|
|
|
|
desc = pango_font_description_copy (font_desc);
|
|
pango_font_description_unset_fields (desc, PANGO_FONT_MASK_SIZE);
|
|
pango_attr_list_insert (attrs, pango_attr_font_desc_new (desc));
|
|
pango_font_description_free (desc);
|
|
str = g_strconcat (item->name, " 0", NULL);
|
|
attr = pango_attr_font_features_new (str);
|
|
attr->start_index = 0;
|
|
attr->end_index = strlen (input);
|
|
pango_attr_list_insert (attrs, attr);
|
|
str = g_strconcat (item->name, " 1", NULL);
|
|
attr = pango_attr_font_features_new (str);
|
|
attr->start_index = strlen (input) + strlen (" ⟶ ");
|
|
attr->end_index = attr->start_index + strlen (input);
|
|
pango_attr_list_insert (attrs, attr);
|
|
|
|
gtk_label_set_text (GTK_LABEL (item->example), text);
|
|
gtk_label_set_attributes (GTK_LABEL (item->example), attrs);
|
|
|
|
g_free (text);
|
|
pango_attr_list_unref (attrs);
|
|
}
|
|
else
|
|
gtk_label_set_markup (GTK_LABEL (item->example), "");
|
|
g_free (input);
|
|
}
|
|
}
|
|
|
|
static void
|
|
font_feature_toggled_cb (GtkCheckButton *check_button,
|
|
gpointer user_data)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = user_data;
|
|
|
|
set_inconsistent (check_button, FALSE);
|
|
update_font_features (fontchooser);
|
|
}
|
|
|
|
static void
|
|
add_check_group (GtkFontChooserWidget *fontchooser,
|
|
const char *title,
|
|
const char **tags)
|
|
{
|
|
GtkWidget *label;
|
|
GtkWidget *group;
|
|
PangoAttrList *attrs;
|
|
int i;
|
|
|
|
group = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
|
|
gtk_widget_set_halign (group, GTK_ALIGN_FILL);
|
|
|
|
label = gtk_label_new (title);
|
|
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
|
|
gtk_widget_set_halign (label, GTK_ALIGN_START);
|
|
g_object_set (label, "margin-top", 10, "margin-bottom", 10, NULL);
|
|
attrs = pango_attr_list_new ();
|
|
pango_attr_list_insert (attrs, pango_attr_weight_new (PANGO_WEIGHT_BOLD));
|
|
gtk_label_set_attributes (GTK_LABEL (label), attrs);
|
|
pango_attr_list_unref (attrs);
|
|
gtk_box_append (GTK_BOX (group), label);
|
|
|
|
for (i = 0; tags[i]; i++)
|
|
{
|
|
hb_tag_t tag;
|
|
GtkWidget *feat;
|
|
FeatureItem *item;
|
|
GtkGesture *gesture;
|
|
GtkWidget *box;
|
|
GtkWidget *example;
|
|
|
|
tag = hb_tag_from_string (tags[i], -1);
|
|
|
|
feat = gtk_check_button_new_with_label (get_feature_display_name (tag));
|
|
set_inconsistent (GTK_CHECK_BUTTON (feat), TRUE);
|
|
g_signal_connect (feat, "toggled", G_CALLBACK (font_feature_toggled_cb), fontchooser);
|
|
g_signal_connect_swapped (feat, "notify::inconsistent", G_CALLBACK (update_font_features), fontchooser);
|
|
|
|
gesture = gtk_gesture_click_new ();
|
|
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), GDK_BUTTON_SECONDARY);
|
|
g_signal_connect (gesture, "pressed", G_CALLBACK (feat_pressed), feat);
|
|
gtk_widget_add_controller (feat, GTK_EVENT_CONTROLLER (gesture));
|
|
|
|
example = gtk_label_new ("");
|
|
gtk_label_set_selectable (GTK_LABEL (example), TRUE);
|
|
gtk_widget_set_halign (example, GTK_ALIGN_START);
|
|
|
|
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
|
|
gtk_box_set_homogeneous (GTK_BOX (box), TRUE);
|
|
gtk_box_append (GTK_BOX (box), feat);
|
|
gtk_box_append (GTK_BOX (box), example);
|
|
gtk_box_append (GTK_BOX (group), box);
|
|
|
|
item = g_new (FeatureItem, 1);
|
|
item->name = tags[i];
|
|
item->tag = tag;
|
|
item->top = box;
|
|
item->feat = feat;
|
|
item->example = example;
|
|
|
|
fontchooser->feature_items = g_list_prepend (fontchooser->feature_items, item);
|
|
}
|
|
|
|
gtk_box_append (GTK_BOX (fontchooser->feature_box), group);
|
|
}
|
|
|
|
static void
|
|
add_radio_group (GtkFontChooserWidget *fontchooser,
|
|
const char *title,
|
|
const char **tags)
|
|
{
|
|
GtkWidget *label;
|
|
GtkWidget *group;
|
|
int i;
|
|
GtkWidget *group_button = NULL;
|
|
PangoAttrList *attrs;
|
|
|
|
group = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
|
|
gtk_widget_set_halign (group, GTK_ALIGN_FILL);
|
|
|
|
label = gtk_label_new (title);
|
|
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
|
|
gtk_widget_set_halign (label, GTK_ALIGN_START);
|
|
g_object_set (label, "margin-top", 10, "margin-bottom", 10, NULL);
|
|
attrs = pango_attr_list_new ();
|
|
pango_attr_list_insert (attrs, pango_attr_weight_new (PANGO_WEIGHT_BOLD));
|
|
gtk_label_set_attributes (GTK_LABEL (label), attrs);
|
|
pango_attr_list_unref (attrs);
|
|
gtk_box_append (GTK_BOX (group), label);
|
|
|
|
for (i = 0; tags[i]; i++)
|
|
{
|
|
hb_tag_t tag;
|
|
GtkWidget *feat;
|
|
FeatureItem *item;
|
|
const char *name;
|
|
GtkWidget *box;
|
|
GtkWidget *example;
|
|
|
|
tag = hb_tag_from_string (tags[i], -1);
|
|
name = get_feature_display_name (tag);
|
|
|
|
feat = gtk_check_button_new_with_label (name ? name : _("Default"));
|
|
if (group_button == NULL)
|
|
group_button = feat;
|
|
else
|
|
gtk_check_button_set_group (GTK_CHECK_BUTTON (feat), GTK_CHECK_BUTTON (group_button));
|
|
|
|
g_signal_connect_swapped (feat, "notify::active", G_CALLBACK (update_font_features), fontchooser);
|
|
g_object_set_data (G_OBJECT (feat), "default", group_button);
|
|
|
|
example = gtk_label_new ("");
|
|
gtk_label_set_selectable (GTK_LABEL (example), TRUE);
|
|
gtk_widget_set_halign (example, GTK_ALIGN_START);
|
|
|
|
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
|
|
gtk_box_set_homogeneous (GTK_BOX (box), TRUE);
|
|
gtk_box_append (GTK_BOX (box), feat);
|
|
gtk_box_append (GTK_BOX (box), example);
|
|
gtk_box_append (GTK_BOX (group), box);
|
|
|
|
item = g_new (FeatureItem, 1);
|
|
item->name = tags[i];
|
|
item->tag = tag;
|
|
item->top = box;
|
|
item->feat = feat;
|
|
item->example = example;
|
|
|
|
fontchooser->feature_items = g_list_prepend (fontchooser->feature_items, item);
|
|
}
|
|
|
|
gtk_box_append (GTK_BOX (fontchooser->feature_box), group);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_populate_features (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
const char *ligatures[] = { "liga", "dlig", "hlig", "clig", NULL };
|
|
const char *letter_case[] = { "smcp", "c2sc", "pcap", "c2pc", "unic", "cpsp", "case", NULL };
|
|
const char *number_case[] = { "xxxx", "lnum", "onum", NULL };
|
|
const char *number_spacing[] = { "xxxx", "pnum", "tnum", NULL };
|
|
const char *number_formatting[] = { "zero", "nalt", "frac", NULL };
|
|
const char *char_variants[] = {
|
|
"swsh", "cswh", "calt", "falt", "hist", "salt", "jalt", "titl", "rand",
|
|
"ss01", "ss02", "ss03", "ss04", "ss05", "ss06", "ss07", "ss08", "ss09", "ss10",
|
|
"ss11", "ss12", "ss13", "ss14", "ss15", "ss16", "ss17", "ss18", "ss19", "ss20",
|
|
NULL };
|
|
|
|
add_check_group (fontchooser, _("Ligatures"), ligatures);
|
|
add_check_group (fontchooser, _("Letter Case"), letter_case);
|
|
add_radio_group (fontchooser, _("Number Case"), number_case);
|
|
add_radio_group (fontchooser, _("Number Spacing"), number_spacing);
|
|
add_check_group (fontchooser, _("Number Formatting"), number_formatting);
|
|
add_check_group (fontchooser, _("Character Variants"), char_variants);
|
|
|
|
update_font_features (fontchooser);
|
|
}
|
|
|
|
static gboolean
|
|
gtk_font_chooser_widget_update_font_features (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
PangoFont *pango_font;
|
|
hb_font_t *hb_font;
|
|
hb_tag_t script_tag;
|
|
hb_tag_t lang_tag;
|
|
guint script_index = 0;
|
|
guint lang_index = 0;
|
|
int i, j;
|
|
GList *l;
|
|
gboolean has_feature = FALSE;
|
|
|
|
for (l = fontchooser->feature_items; l; l = l->next)
|
|
{
|
|
FeatureItem *item = l->data;
|
|
gtk_widget_hide (item->top);
|
|
gtk_widget_hide (gtk_widget_get_parent (item->top));
|
|
}
|
|
|
|
if ((fontchooser->level & GTK_FONT_CHOOSER_LEVEL_FEATURES) == 0)
|
|
return FALSE;
|
|
|
|
pango_font = pango_context_load_font (gtk_widget_get_pango_context (GTK_WIDGET (fontchooser)),
|
|
fontchooser->font_desc);
|
|
hb_font = pango_font_get_hb_font (pango_font);
|
|
|
|
if (hb_font)
|
|
{
|
|
hb_tag_t table[2] = { HB_OT_TAG_GSUB, HB_OT_TAG_GPOS };
|
|
hb_face_t *hb_face;
|
|
hb_tag_t features[80];
|
|
unsigned int count;
|
|
unsigned int n_features;
|
|
|
|
hb_face = hb_font_get_face (hb_font);
|
|
|
|
find_language_and_script (fontchooser, hb_face, &lang_tag, &script_tag);
|
|
|
|
n_features = 0;
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
hb_ot_layout_table_find_script (hb_face, table[i], script_tag, &script_index);
|
|
|
|
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
|
|
hb_ot_layout_script_find_language (hb_face, table[i], script_index, lang_tag, &lang_index);
|
|
G_GNUC_END_IGNORE_DEPRECATIONS
|
|
|
|
count = G_N_ELEMENTS (features);
|
|
hb_ot_layout_language_get_feature_tags (hb_face,
|
|
table[i],
|
|
script_index,
|
|
lang_index,
|
|
n_features,
|
|
&count,
|
|
features);
|
|
n_features += count;
|
|
}
|
|
|
|
for (j = 0; j < n_features; j++)
|
|
{
|
|
for (l = fontchooser->feature_items; l; l = l->next)
|
|
{
|
|
FeatureItem *item = l->data;
|
|
if (item->tag != features[j])
|
|
continue;
|
|
|
|
has_feature = TRUE;
|
|
gtk_widget_show (item->top);
|
|
gtk_widget_show (gtk_widget_get_parent (item->top));
|
|
|
|
update_feature_example (item, hb_font, script_tag, lang_tag, fontchooser->font_desc);
|
|
|
|
if (GTK_IS_CHECK_BUTTON (item->feat))
|
|
{
|
|
GtkWidget *def = GTK_WIDGET (g_object_get_data (G_OBJECT (item->feat), "default"));
|
|
if (def)
|
|
{
|
|
gtk_widget_show (def);
|
|
gtk_widget_show (gtk_widget_get_parent (def));
|
|
gtk_check_button_set_active (GTK_CHECK_BUTTON (def), TRUE);
|
|
}
|
|
else
|
|
set_inconsistent (GTK_CHECK_BUTTON (item->feat), TRUE);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
g_object_unref (pango_font);
|
|
|
|
return has_feature;
|
|
}
|
|
|
|
static void
|
|
update_font_features (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
GString *s;
|
|
GList *l;
|
|
|
|
s = g_string_new ("");
|
|
|
|
for (l = fontchooser->feature_items; l; l = l->next)
|
|
{
|
|
FeatureItem *item = l->data;
|
|
|
|
if (!gtk_widget_is_sensitive (item->feat))
|
|
continue;
|
|
|
|
if (GTK_IS_CHECK_BUTTON (item->feat) && g_object_get_data (G_OBJECT (item->feat), "default"))
|
|
{
|
|
if (gtk_check_button_get_active (GTK_CHECK_BUTTON (item->feat)) &&
|
|
strcmp (item->name, "xxxx") != 0)
|
|
{
|
|
g_string_append_printf (s, "%s\"%s\" %d", s->len > 0 ? ", " : "", item->name, 1);
|
|
}
|
|
}
|
|
else if (GTK_IS_CHECK_BUTTON (item->feat))
|
|
{
|
|
if (gtk_check_button_get_inconsistent (GTK_CHECK_BUTTON (item->feat)))
|
|
continue;
|
|
|
|
g_string_append_printf (s, "%s\"%s\" %d",
|
|
s->len > 0 ? ", " : "", item->name,
|
|
gtk_check_button_get_active (GTK_CHECK_BUTTON (item->feat)));
|
|
}
|
|
}
|
|
|
|
if (g_strcmp0 (fontchooser->font_features, s->str) != 0)
|
|
{
|
|
g_free (fontchooser->font_features);
|
|
fontchooser->font_features = g_string_free (s, FALSE);
|
|
g_object_notify (G_OBJECT (fontchooser), "font-features");
|
|
}
|
|
else
|
|
g_string_free (s, TRUE);
|
|
|
|
gtk_font_chooser_widget_update_preview_attributes (fontchooser);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_merge_font_desc (GtkFontChooserWidget *fontchooser,
|
|
const PangoFontDescription *font_desc)
|
|
{
|
|
PangoFontMask mask;
|
|
|
|
g_assert (font_desc != NULL);
|
|
/* iter may be NULL if the font doesn't exist on the list */
|
|
|
|
mask = pango_font_description_get_set_fields (font_desc);
|
|
|
|
/* sucky test, because we can't restrict the comparison to
|
|
* only the parts that actually do get merged */
|
|
if (pango_font_description_equal (font_desc, fontchooser->font_desc))
|
|
return;
|
|
|
|
pango_font_description_merge (fontchooser->font_desc, font_desc, TRUE);
|
|
|
|
if (mask & PANGO_FONT_MASK_SIZE)
|
|
{
|
|
double font_size = (double) pango_font_description_get_size (fontchooser->font_desc) / PANGO_SCALE;
|
|
/* XXX: This clamps, which can cause it to reloop into here, do we need
|
|
* to block its signal handler? */
|
|
gtk_range_set_value (GTK_RANGE (fontchooser->size_slider), font_size);
|
|
gtk_spin_button_set_value (GTK_SPIN_BUTTON (fontchooser->size_spin), font_size);
|
|
}
|
|
if (mask & (PANGO_FONT_MASK_FAMILY | PANGO_FONT_MASK_STYLE | PANGO_FONT_MASK_VARIANT |
|
|
PANGO_FONT_MASK_WEIGHT | PANGO_FONT_MASK_STRETCH))
|
|
{
|
|
gboolean has_tweak = FALSE;
|
|
|
|
gtk_font_chooser_widget_update_marks (fontchooser);
|
|
|
|
if (gtk_font_chooser_widget_update_font_features (fontchooser))
|
|
has_tweak = TRUE;
|
|
if (gtk_font_chooser_widget_update_font_variations (fontchooser))
|
|
has_tweak = TRUE;
|
|
|
|
g_simple_action_set_enabled (G_SIMPLE_ACTION (fontchooser->tweak_action), has_tweak);
|
|
}
|
|
|
|
gtk_font_chooser_widget_update_preview_attributes (fontchooser);
|
|
|
|
g_object_notify (G_OBJECT (fontchooser), "font");
|
|
g_object_notify (G_OBJECT (fontchooser), "font-desc");
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_take_font_desc (GtkFontChooserWidget *fontchooser,
|
|
PangoFontDescription *font_desc)
|
|
{
|
|
PangoFontMask mask;
|
|
|
|
if (font_desc == NULL)
|
|
font_desc = pango_font_description_from_string (GTK_FONT_CHOOSER_DEFAULT_FONT_NAME);
|
|
|
|
mask = pango_font_description_get_set_fields (font_desc);
|
|
gtk_font_chooser_widget_merge_font_desc (fontchooser, font_desc);
|
|
|
|
if (mask & (PANGO_FONT_MASK_FAMILY | PANGO_FONT_MASK_STYLE | PANGO_FONT_MASK_VARIANT |
|
|
PANGO_FONT_MASK_WEIGHT | PANGO_FONT_MASK_STRETCH))
|
|
{
|
|
gtk_single_selection_set_selected (fontchooser->selection, GTK_INVALID_LIST_POSITION);
|
|
gtk_font_chooser_widget_ensure_matching_selection (fontchooser);
|
|
}
|
|
|
|
pango_font_description_free (font_desc);
|
|
}
|
|
|
|
static const char *
|
|
gtk_font_chooser_widget_get_preview_text (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
|
|
return fontchooser->preview_text;
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_set_preview_text (GtkFontChooserWidget *fontchooser,
|
|
const char *text)
|
|
{
|
|
if (fontchooser->preview_text == text)
|
|
return;
|
|
|
|
g_free (fontchooser->preview_text);
|
|
fontchooser->preview_text = g_strdup (text);
|
|
|
|
gtk_editable_set_text (GTK_EDITABLE (fontchooser->preview), text);
|
|
|
|
g_object_notify (G_OBJECT (fontchooser), "preview-text");
|
|
}
|
|
|
|
static gboolean
|
|
gtk_font_chooser_widget_get_show_preview_entry (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
return fontchooser->show_preview_entry;
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_set_show_preview_entry (GtkFontChooserWidget *fontchooser,
|
|
gboolean show_preview_entry)
|
|
{
|
|
if (fontchooser->show_preview_entry != show_preview_entry)
|
|
{
|
|
fontchooser->show_preview_entry = show_preview_entry;
|
|
|
|
if (show_preview_entry)
|
|
gtk_widget_show (fontchooser->preview);
|
|
else
|
|
gtk_widget_hide (fontchooser->preview);
|
|
|
|
g_object_notify (G_OBJECT (fontchooser), "show-preview-entry");
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_set_font_map (GtkFontChooser *chooser,
|
|
PangoFontMap *fontmap)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
|
|
|
|
if (g_set_object (&fontchooser->font_map, fontmap))
|
|
{
|
|
PangoContext *context;
|
|
|
|
if (!fontmap)
|
|
fontmap = pango_cairo_font_map_get_default ();
|
|
|
|
context = gtk_widget_get_pango_context (fontchooser->family_face_list);
|
|
pango_context_set_font_map (context, fontmap);
|
|
|
|
context = gtk_widget_get_pango_context (fontchooser->preview);
|
|
pango_context_set_font_map (context, fontmap);
|
|
|
|
update_fontlist (fontchooser);
|
|
}
|
|
}
|
|
|
|
static PangoFontMap *
|
|
gtk_font_chooser_widget_get_font_map (GtkFontChooser *chooser)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
|
|
|
|
return fontchooser->font_map;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_font_chooser_widget_filter_cb (gpointer item,
|
|
gpointer data)
|
|
{
|
|
GtkFontChooserWidget *self = GTK_FONT_CHOOSER_WIDGET (data);
|
|
PangoFontFamily *family;
|
|
PangoFontFace *face;
|
|
|
|
if (PANGO_IS_FONT_FAMILY (item))
|
|
{
|
|
family = item;
|
|
face = pango_font_family_get_face (family, NULL);
|
|
}
|
|
else
|
|
{
|
|
face = item;
|
|
family = pango_font_face_get_family (face);
|
|
}
|
|
|
|
return self->filter_func (family, face, self->filter_data);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_set_filter_func (GtkFontChooser *chooser,
|
|
GtkFontFilterFunc filter,
|
|
gpointer data,
|
|
GDestroyNotify destroy)
|
|
{
|
|
GtkFontChooserWidget *self = GTK_FONT_CHOOSER_WIDGET (chooser);
|
|
|
|
if (self->filter_data_destroy)
|
|
self->filter_data_destroy (self->filter_data);
|
|
|
|
self->filter_func = filter;
|
|
self->filter_data = data;
|
|
self->filter_data_destroy = destroy;
|
|
|
|
if (filter)
|
|
{
|
|
gtk_custom_filter_set_filter_func (self->custom_filter,
|
|
gtk_font_chooser_widget_filter_cb,
|
|
self,
|
|
NULL);
|
|
}
|
|
else
|
|
{
|
|
gtk_custom_filter_set_filter_func (self->custom_filter, NULL, NULL, NULL);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_set_level (GtkFontChooserWidget *fontchooser,
|
|
GtkFontChooserLevel level)
|
|
{
|
|
if (fontchooser->level == level)
|
|
return;
|
|
|
|
fontchooser->level = level;
|
|
|
|
if ((level & GTK_FONT_CHOOSER_LEVEL_SIZE) != 0)
|
|
{
|
|
gtk_widget_show (fontchooser->size_label);
|
|
gtk_widget_show (fontchooser->size_slider);
|
|
gtk_widget_show (fontchooser->size_spin);
|
|
}
|
|
else
|
|
{
|
|
gtk_widget_hide (fontchooser->size_label);
|
|
gtk_widget_hide (fontchooser->size_slider);
|
|
gtk_widget_hide (fontchooser->size_spin);
|
|
}
|
|
|
|
update_fontlist (fontchooser);
|
|
|
|
g_object_notify (G_OBJECT (fontchooser), "level");
|
|
}
|
|
|
|
static GtkFontChooserLevel
|
|
gtk_font_chooser_widget_get_level (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
return fontchooser->level;
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_set_language (GtkFontChooserWidget *fontchooser,
|
|
const char *language)
|
|
{
|
|
PangoLanguage *lang;
|
|
|
|
lang = pango_language_from_string (language);
|
|
if (fontchooser->language == lang)
|
|
return;
|
|
|
|
fontchooser->language = lang;
|
|
g_object_notify (G_OBJECT (fontchooser), "language");
|
|
|
|
gtk_font_chooser_widget_update_preview_attributes (fontchooser);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_iface_init (GtkFontChooserIface *iface)
|
|
{
|
|
iface->get_font_family = gtk_font_chooser_widget_get_family;
|
|
iface->get_font_face = gtk_font_chooser_widget_get_face;
|
|
iface->get_font_size = gtk_font_chooser_widget_get_size;
|
|
iface->set_filter_func = gtk_font_chooser_widget_set_filter_func;
|
|
iface->set_font_map = gtk_font_chooser_widget_set_font_map;
|
|
iface->get_font_map = gtk_font_chooser_widget_get_font_map;
|
|
}
|
|
|
|
GAction *
|
|
gtk_font_chooser_widget_get_tweak_action (GtkWidget *widget)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (widget);
|
|
|
|
return fontchooser->tweak_action;
|
|
}
|