forked from AuroraMiddleware/gtk
1106 lines
37 KiB
C
1106 lines
37 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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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 <atk/atk.h>
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#include "gtkfontchooserwidget.h"
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#include "gtkfontchooser.h"
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#include "gtkfontchooserutils.h"
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#include "gtkcellrenderertext.h"
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#include "gtkentry.h"
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#include "gtkframe.h"
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#include "gtkbbox.h"
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#include "gtkbox.h"
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#include "gtklabel.h"
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#include "gtkliststore.h"
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#include "gtkstock.h"
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#include "gtktextview.h"
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#include "gtktreeselection.h"
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#include "gtktreeview.h"
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#include "gtkscrolledwindow.h"
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#include "gtkintl.h"
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#include "gtkaccessible.h"
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#include "gtkbuildable.h"
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#include "gtkprivate.h"
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#include "gtkscale.h"
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#include "gtkspinbutton.h"
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#include "gtknotebook.h"
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#include "gtkwidget.h"
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#include "gtkgrid.h"
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/**
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* SECTION:gtkfontchooser
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* @Short_description: A widget for selecting fonts
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* @Title: GtkFontChooserWidget
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* @See_also: #GtkFontChooserDialog
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*
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* The #GtkFontChooserWidget widget lists the available fonts,
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* styles and sizes, allowing the user to select a font. It is
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* used in the #GtkFontChooserDialog widget to provide a
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* dialog box for selecting fonts.
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*
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* To set the font which is initially selected, use
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* gtk_font_chooser_set_font() or gtk_font_chooser_set_font_desc().
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*
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* To get the selected font use gtk_font_chooser_get_font() or
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* gtk_font_chooser_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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* gtk_font_chooser_set_preview_text().
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*
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* Since: 3.2
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*/
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struct _GtkFontChooserWidgetPrivate
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{
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GtkWidget *search_entry;
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GtkWidget *family_face_list;
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GtkWidget *list_scrolled_window;
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GtkWidget *empty_list;
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GtkWidget *list_notebook;
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GtkTreeModel *model;
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GtkTreeModel *filter_model;
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GtkWidget *preview;
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gchar *preview_text;
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gboolean show_preview_entry;
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GtkWidget *size_spin;
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GtkWidget *size_slider;
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PangoFontDescription *font_desc;
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GtkTreeIter font_iter; /* invalid if font not available or pointer into model
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(not filter_model) to the row containing font */
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PangoFontFace *face;
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PangoFontFamily *family;
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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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};
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/* This is the initial fixed height and the top padding of the preview entry */
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#define PREVIEW_HEIGHT 72
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#define PREVIEW_TOP_PADDING 6
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/* These are the sizes of the font, style & size lists. */
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#define FONT_LIST_HEIGHT 136
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#define FONT_LIST_WIDTH 190
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#define FONT_STYLE_LIST_WIDTH 170
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#define FONT_SIZE_LIST_WIDTH 60
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#define ROW_FORMAT_STRING "<span weight=\"bold\" size=\"small\">%s</span>\n<span size=\"x-large\" font_desc=\"%s\">%s</span>"
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#define NO_FONT_MATCHED_SEARCH N_("No fonts matched your search. You can revise your search and try again.")
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/* These are what we use as the standard font sizes, for the size list.
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*/
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static const gint font_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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enum {
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FAMILY_COLUMN,
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FACE_COLUMN,
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FONT_DESC_COLUMN,
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PREVIEW_TITLE_COLUMN
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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 void gtk_font_chooser_widget_screen_changed (GtkWidget *widget,
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GdkScreen *previous_screen);
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static void gtk_font_chooser_widget_bootstrap_fontlist (GtkFontChooserWidget *fontchooser);
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static void gtk_font_chooser_widget_select_font (GtkFontChooserWidget *fontchooser);
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static gchar *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 gchar *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_take_font_desc (GtkFontChooserWidget *fontchooser,
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PangoFontDescription *font_desc);
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static const gchar *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 gchar *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_iface_init (GtkFontChooserIface *iface);
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G_DEFINE_TYPE_WITH_CODE (GtkFontChooserWidget, gtk_font_chooser_widget, GTK_TYPE_BOX,
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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_class_init (GtkFontChooserWidgetClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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widget_class->screen_changed = gtk_font_chooser_widget_screen_changed;
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gobject_class->finalize = gtk_font_chooser_widget_finalize;
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gobject_class->set_property = gtk_font_chooser_widget_set_property;
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gobject_class->get_property = gtk_font_chooser_widget_get_property;
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_gtk_font_chooser_install_properties (gobject_class);
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g_type_class_add_private (klass, sizeof (GtkFontChooserWidgetPrivate));
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}
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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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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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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 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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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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text_changed_cb (GtkEntry *entry,
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GParamSpec *pspec,
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GtkFontChooserWidget *fc)
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{
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GtkFontChooserWidgetPrivate *priv = fc->priv;
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const gchar *text;
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text = gtk_entry_get_text (entry);
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if (text == NULL || text[0] == '\0')
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{
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GIcon *icon;
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icon = g_themed_icon_new_with_default_fallbacks ("edit-find-symbolic");
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g_object_set (G_OBJECT (priv->search_entry),
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"secondary-icon-gicon", icon,
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"secondary-icon-activatable", FALSE,
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"secondary-icon-sensitive", FALSE,
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NULL);
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g_object_unref (icon);
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}
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else
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{
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if (!gtk_entry_get_icon_activatable (GTK_ENTRY (priv->search_entry), GTK_ENTRY_ICON_SECONDARY))
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{
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GIcon *icon;
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icon = g_themed_icon_new_with_default_fallbacks ("edit-clear-symbolic");
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g_object_set (G_OBJECT (priv->search_entry),
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"secondary-icon-gicon", icon,
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"secondary-icon-activatable", TRUE,
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"secondary-icon-sensitive", TRUE,
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NULL);
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g_object_unref (icon);
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}
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}
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gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (priv->filter_model));
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}
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static void
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icon_press_cb (GtkEntry *entry,
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GtkEntryIconPosition pos,
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GdkEvent *event,
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gpointer user_data)
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{
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gtk_entry_set_text (entry, "");
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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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GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
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PangoFontDescription *font_desc;
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gdouble 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 (priv->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 void
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set_range_marks (GtkFontChooserWidgetPrivate *priv,
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GtkWidget *size_slider,
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gint *sizes,
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gint length)
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{
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GtkAdjustment *adj;
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gint i;
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gdouble value;
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if (length < 2)
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{
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sizes = (gint*)font_sizes;
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length = G_N_ELEMENTS (font_sizes);
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}
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gtk_scale_clear_marks (GTK_SCALE (size_slider));
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adj = gtk_range_get_adjustment(GTK_RANGE (size_slider));
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gtk_adjustment_set_lower (adj, (gdouble) sizes[0]);
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gtk_adjustment_set_upper (adj, (gdouble) sizes[length-1]);
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value = gtk_adjustment_get_value (adj);
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if (value > (gdouble) sizes[length-1])
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gtk_adjustment_set_value (adj, (gdouble) sizes[length-1]);
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else if (value < (gdouble) sizes[0])
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gtk_adjustment_set_value (adj, (gdouble) sizes[0]);
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for (i = 0; i < length; i++)
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gtk_scale_add_mark (GTK_SCALE (size_slider),
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(gdouble) sizes[i],
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GTK_POS_BOTTOM, NULL);
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}
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static void
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row_activated_cb (GtkTreeView *view,
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GtkTreePath *path,
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GtkTreeViewColumn *column,
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gpointer user_data)
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{
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GtkFontChooserWidget *fontchooser = user_data;
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gchar *fontname;
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fontname = gtk_font_chooser_widget_get_font (fontchooser);
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_gtk_font_chooser_font_activated (GTK_FONT_CHOOSER (fontchooser), fontname);
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g_free (fontname);
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}
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static void
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cursor_changed_cb (GtkTreeView *treeview,
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gpointer user_data)
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{
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GtkFontChooserWidget *fontchooser = user_data;
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GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
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PangoFontFamily *family;
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PangoFontFace *face;
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PangoFontDescription *desc;
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gint *sizes;
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gint i, n_sizes;
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GtkTreeIter iter;
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GtkTreePath *path = NULL;
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gtk_tree_view_get_cursor (treeview, &path, NULL);
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if (!path)
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return;
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if (!gtk_tree_model_get_iter (priv->filter_model, &iter, path))
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{
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gtk_tree_path_free (path);
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return;
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}
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gtk_tree_model_filter_convert_iter_to_child_iter (GTK_TREE_MODEL_FILTER (priv->filter_model),
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&priv->font_iter,
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&iter);
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gtk_tree_model_get (priv->filter_model, &iter,
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FACE_COLUMN, &face,
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FAMILY_COLUMN, &family,
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FONT_DESC_COLUMN, &desc,
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-1);
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gtk_tree_path_free (path);
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path = NULL;
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pango_font_description_set_size (desc, pango_font_description_get_size (priv->font_desc));
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gtk_widget_override_font (priv->preview, desc);
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pango_font_face_list_sizes (face, &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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sizes[i] = sizes[i] / PANGO_SCALE;
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set_range_marks (priv, priv->size_slider, sizes, n_sizes);
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if (priv->family)
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g_object_unref (priv->family);
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priv->family = family;
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if (priv->face)
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g_object_unref (priv->face);
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priv->face = face;
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if (priv->font_desc)
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pango_font_description_free (priv->font_desc);
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priv->font_desc = desc;
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g_object_notify (G_OBJECT (fontchooser), "font");
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g_object_notify (G_OBJECT (fontchooser), "font-desc");
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}
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static gboolean
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zoom_preview_cb (GtkWidget *scrolled_window,
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GdkEventScroll *event,
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gpointer user_data)
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{
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GtkFontChooserWidget *fc = user_data;
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GtkFontChooserWidgetPrivate *priv = fc->priv;
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GtkAdjustment *adj = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->size_spin));
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if (event->direction == GDK_SCROLL_UP || event->direction == GDK_SCROLL_RIGHT)
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gtk_adjustment_set_value (adj,
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gtk_adjustment_get_value (adj) +
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gtk_adjustment_get_step_increment (adj));
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else if (event->direction == GDK_SCROLL_DOWN || event->direction == GDK_SCROLL_LEFT)
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gtk_adjustment_set_value (adj,
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gtk_adjustment_get_value (adj) -
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gtk_adjustment_get_step_increment (adj));
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return TRUE;
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}
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static void
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row_inserted_cb (GtkTreeModel *model,
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GtkTreePath *path,
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GtkTreeIter *iter,
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gpointer user_data)
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{
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GtkFontChooserWidget *fontchooser = user_data;
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GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
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gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->list_notebook), 0);
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}
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static void
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row_deleted_cb (GtkTreeModel *model,
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GtkTreePath *path,
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gpointer user_data)
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{
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GtkFontChooserWidget *fontchooser = user_data;
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GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
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if (gtk_tree_model_iter_n_children (model, NULL) == 0)
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gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->list_notebook), 1);
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}
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static void
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gtk_font_chooser_widget_init (GtkFontChooserWidget *fontchooser)
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{
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GIcon *icon;
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GtkFontChooserWidgetPrivate *priv;
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GtkWidget *scrolled_win;
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GtkWidget *grid;
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fontchooser->priv = G_TYPE_INSTANCE_GET_PRIVATE (fontchooser,
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GTK_TYPE_FONT_CHOOSER_WIDGET,
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GtkFontChooserWidgetPrivate);
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|
|
|
priv = fontchooser->priv;
|
|
|
|
/* Default preview string */
|
|
priv->preview_text = g_strdup (pango_language_get_sample_string (NULL));
|
|
priv->show_preview_entry = TRUE;
|
|
priv->font_desc = pango_font_description_new ();
|
|
|
|
gtk_widget_push_composite_child ();
|
|
|
|
/* Creating fundamental widgets for the private struct */
|
|
priv->search_entry = gtk_entry_new ();
|
|
priv->family_face_list = gtk_tree_view_new ();
|
|
priv->preview = gtk_entry_new ();
|
|
priv->size_slider = gtk_scale_new_with_range (GTK_ORIENTATION_HORIZONTAL,
|
|
(gdouble) font_sizes[0],
|
|
(gdouble) font_sizes[G_N_ELEMENTS (font_sizes) - 1],
|
|
1.0);
|
|
|
|
priv->size_spin = gtk_spin_button_new_with_range (0.0, (gdouble)(G_MAXINT / PANGO_SCALE), 1.0);
|
|
|
|
/** Bootstrapping widget layout **/
|
|
gtk_box_set_spacing (GTK_BOX (fontchooser), 6);
|
|
|
|
/* Main font family/face view */
|
|
priv->list_scrolled_window = gtk_scrolled_window_new (NULL, NULL);
|
|
scrolled_win = priv->list_scrolled_window;
|
|
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
|
|
GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
|
|
gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_win),
|
|
GTK_SHADOW_ETCHED_IN);
|
|
gtk_widget_set_size_request (scrolled_win, 400, 300);
|
|
gtk_container_add (GTK_CONTAINER (scrolled_win), priv->family_face_list);
|
|
|
|
/* Text to display when list is empty */
|
|
priv->empty_list = gtk_label_new (_(NO_FONT_MATCHED_SEARCH));
|
|
gtk_widget_set_margin_top (priv->empty_list, 12);
|
|
gtk_widget_set_margin_left (priv->empty_list, 12);
|
|
gtk_widget_set_margin_right (priv->empty_list, 12);
|
|
gtk_widget_set_margin_bottom (priv->empty_list, 12);
|
|
gtk_widget_set_halign (priv->empty_list, GTK_ALIGN_CENTER);
|
|
gtk_widget_set_valign (priv->empty_list, GTK_ALIGN_START);
|
|
|
|
priv->list_notebook = gtk_notebook_new ();
|
|
gtk_notebook_set_show_tabs (GTK_NOTEBOOK (priv->list_notebook), FALSE);
|
|
gtk_notebook_append_page (GTK_NOTEBOOK (priv->list_notebook), scrolled_win, NULL);
|
|
gtk_notebook_append_page (GTK_NOTEBOOK (priv->list_notebook), priv->empty_list, NULL);
|
|
|
|
/* Basic layout */
|
|
grid = gtk_grid_new ();
|
|
|
|
gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
|
|
gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
|
|
|
|
gtk_grid_attach (GTK_GRID (grid), priv->search_entry, 0, 0, 2, 1);
|
|
gtk_grid_attach (GTK_GRID (grid), priv->list_notebook, 0, 1, 2, 1);
|
|
gtk_grid_attach (GTK_GRID (grid), priv->preview, 0, 2, 2, 1);
|
|
|
|
gtk_grid_attach (GTK_GRID (grid), priv->size_slider, 0, 3, 1, 1);
|
|
gtk_grid_attach (GTK_GRID (grid), priv->size_spin, 1, 3, 1, 1);
|
|
|
|
gtk_widget_set_hexpand (GTK_WIDGET (scrolled_win), TRUE);
|
|
gtk_widget_set_vexpand (GTK_WIDGET (scrolled_win), TRUE);
|
|
gtk_widget_set_hexpand (GTK_WIDGET (priv->search_entry), TRUE);
|
|
|
|
gtk_widget_set_hexpand (GTK_WIDGET (priv->size_slider), TRUE);
|
|
gtk_widget_set_hexpand (GTK_WIDGET (priv->size_spin), FALSE);
|
|
|
|
gtk_box_pack_start (GTK_BOX (fontchooser), grid, TRUE, TRUE, 0);
|
|
|
|
gtk_widget_show_all (GTK_WIDGET (fontchooser));
|
|
gtk_widget_hide (GTK_WIDGET (fontchooser));
|
|
|
|
/* Treeview column and model bootstrapping */
|
|
gtk_font_chooser_widget_bootstrap_fontlist (fontchooser);
|
|
|
|
/* Set default preview text */
|
|
gtk_entry_set_text (GTK_ENTRY (priv->preview),
|
|
pango_language_get_sample_string (NULL));
|
|
|
|
/* Set search icon and place holder text */
|
|
icon = g_themed_icon_new_with_default_fallbacks ("edit-find-symbolic");
|
|
g_object_set (G_OBJECT (priv->search_entry),
|
|
"secondary-icon-gicon", icon,
|
|
"secondary-icon-activatable", FALSE,
|
|
"secondary-icon-sensitive", FALSE,
|
|
NULL);
|
|
g_object_unref (icon);
|
|
|
|
gtk_entry_set_placeholder_text (GTK_ENTRY (priv->search_entry), _("Search font name"));
|
|
|
|
/** Callback connections **/
|
|
g_signal_connect (priv->search_entry, "notify::text",
|
|
G_CALLBACK (text_changed_cb), fontchooser);
|
|
g_signal_connect (priv->search_entry,
|
|
"icon-press", G_CALLBACK (icon_press_cb), NULL);
|
|
|
|
g_signal_connect (gtk_range_get_adjustment (GTK_RANGE (priv->size_slider)),
|
|
"value-changed", G_CALLBACK (size_change_cb), fontchooser);
|
|
g_signal_connect (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->size_spin)),
|
|
"value-changed", G_CALLBACK (size_change_cb), fontchooser);
|
|
|
|
g_signal_connect (priv->family_face_list, "cursor-changed",
|
|
G_CALLBACK (cursor_changed_cb), fontchooser);
|
|
g_signal_connect (priv->family_face_list, "row-activated",
|
|
G_CALLBACK (row_activated_cb), fontchooser);
|
|
|
|
/* Zoom on preview scroll */
|
|
g_signal_connect (priv->preview, "scroll-event",
|
|
G_CALLBACK (zoom_preview_cb), fontchooser);
|
|
|
|
g_signal_connect (priv->size_slider, "scroll-event",
|
|
G_CALLBACK (zoom_preview_cb), fontchooser);
|
|
|
|
set_range_marks (priv, priv->size_slider, (gint*)font_sizes, G_N_ELEMENTS (font_sizes));
|
|
|
|
/* Font list empty hides the scrolledwindow */
|
|
g_signal_connect (G_OBJECT (priv->filter_model), "row-deleted",
|
|
G_CALLBACK (row_deleted_cb), fontchooser);
|
|
g_signal_connect (G_OBJECT (priv->filter_model), "row-inserted",
|
|
G_CALLBACK (row_inserted_cb), fontchooser);
|
|
|
|
/* Set default focus */
|
|
gtk_widget_pop_composite_child ();
|
|
|
|
gtk_font_chooser_widget_take_font_desc (fontchooser, NULL);
|
|
}
|
|
|
|
/**
|
|
* gtk_font_chooser_widget_new:
|
|
*
|
|
* Creates a new #GtkFontChooserWidget.
|
|
*
|
|
* Return value: a new #GtkFontChooserWidget
|
|
*
|
|
* Since: 3.2
|
|
*/
|
|
GtkWidget *
|
|
gtk_font_chooser_widget_new (void)
|
|
{
|
|
return g_object_new (GTK_TYPE_FONT_CHOOSER_WIDGET, NULL);
|
|
}
|
|
|
|
static int
|
|
cmp_families (const void *a,
|
|
const void *b)
|
|
{
|
|
const char *a_name = pango_font_family_get_name (*(PangoFontFamily **)a);
|
|
const char *b_name = pango_font_family_get_name (*(PangoFontFamily **)b);
|
|
|
|
return g_utf8_collate (a_name, b_name);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_load_fonts (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
GtkListStore *list_store;
|
|
gint n_families, i;
|
|
PangoFontFamily **families;
|
|
gchar *family_and_face;
|
|
|
|
list_store = GTK_LIST_STORE (priv->model);
|
|
|
|
pango_context_list_families (gtk_widget_get_pango_context (GTK_WIDGET (fontchooser)),
|
|
&families,
|
|
&n_families);
|
|
|
|
qsort (families, n_families, sizeof (PangoFontFamily *), cmp_families);
|
|
|
|
gtk_list_store_clear (list_store);
|
|
memset (&priv->font_iter, 0, sizeof (GtkTreeIter));
|
|
|
|
/* Iterate over families and faces */
|
|
for (i = 0; i < n_families; i++)
|
|
{
|
|
GtkTreeIter iter;
|
|
PangoFontFace **faces;
|
|
int j, n_faces;
|
|
const gchar *fam_name = pango_font_family_get_name (families[i]);
|
|
|
|
pango_font_family_list_faces (families[i], &faces, &n_faces);
|
|
|
|
for (j = 0; j < n_faces; j++)
|
|
{
|
|
PangoFontDescription *pango_desc;
|
|
const gchar *face_name;
|
|
|
|
pango_desc = pango_font_face_describe (faces[j]);
|
|
face_name = pango_font_face_get_face_name (faces[j]);
|
|
|
|
family_and_face = g_strconcat (fam_name, " ", face_name, NULL);
|
|
|
|
gtk_list_store_insert_with_values (list_store, &iter, -1,
|
|
FAMILY_COLUMN, families[i],
|
|
FACE_COLUMN, faces[j],
|
|
FONT_DESC_COLUMN, pango_desc,
|
|
PREVIEW_TITLE_COLUMN, family_and_face,
|
|
-1);
|
|
|
|
pango_font_description_free (pango_desc);
|
|
g_free (family_and_face);
|
|
}
|
|
|
|
g_free (faces);
|
|
}
|
|
|
|
g_free (families);
|
|
}
|
|
|
|
static gboolean
|
|
visible_func (GtkTreeModel *model,
|
|
GtkTreeIter *iter,
|
|
gpointer user_data)
|
|
{
|
|
GtkFontChooserWidgetPrivate *priv = user_data;
|
|
gboolean result = TRUE;
|
|
const gchar *search_text;
|
|
gchar **split_terms;
|
|
gchar *font_name, *font_name_casefold;
|
|
guint i;
|
|
|
|
if (priv->filter_func != NULL)
|
|
{
|
|
PangoFontFamily *family;
|
|
PangoFontFace *face;
|
|
|
|
gtk_tree_model_get (model, iter,
|
|
FAMILY_COLUMN, &family,
|
|
FACE_COLUMN, &face,
|
|
-1);
|
|
|
|
result = priv->filter_func (family, face, priv->filter_data);
|
|
|
|
g_object_unref (family);
|
|
g_object_unref (face);
|
|
|
|
if (!result)
|
|
return FALSE;
|
|
}
|
|
|
|
/* If there's no filter string we show the item */
|
|
search_text = gtk_entry_get_text (GTK_ENTRY (priv->search_entry));
|
|
if (strlen (search_text) == 0)
|
|
return TRUE;
|
|
|
|
gtk_tree_model_get (model, iter,
|
|
PREVIEW_TITLE_COLUMN, &font_name,
|
|
-1);
|
|
|
|
if (font_name == NULL)
|
|
return FALSE;
|
|
|
|
split_terms = g_strsplit (search_text, " ", 0);
|
|
font_name_casefold = g_utf8_casefold (font_name, -1);
|
|
|
|
for (i = 0; split_terms[i] && result; i++)
|
|
{
|
|
gchar* term_casefold = g_utf8_casefold (split_terms[i], -1);
|
|
|
|
if (!strstr (font_name_casefold, term_casefold))
|
|
result = FALSE;
|
|
|
|
g_free (term_casefold);
|
|
}
|
|
|
|
g_free (font_name_casefold);
|
|
g_free (font_name);
|
|
g_strfreev (split_terms);
|
|
|
|
return result;
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_cell_data_func (GtkTreeViewColumn *column,
|
|
GtkCellRenderer *cell,
|
|
GtkTreeModel *tree_model,
|
|
GtkTreeIter *iter,
|
|
gpointer user_data)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = user_data;
|
|
PangoFontDescription *font_desc;
|
|
char *to_string, *markup;
|
|
|
|
gtk_tree_model_get (tree_model, iter,
|
|
FONT_DESC_COLUMN, &font_desc,
|
|
-1);
|
|
|
|
to_string = pango_font_description_to_string (font_desc);
|
|
|
|
markup = g_markup_printf_escaped (ROW_FORMAT_STRING,
|
|
to_string,
|
|
to_string,
|
|
fontchooser->priv->preview_text);
|
|
|
|
g_object_set (cell,
|
|
"markup", markup,
|
|
NULL);
|
|
|
|
pango_font_description_free (font_desc);
|
|
g_free (to_string);
|
|
g_free (markup);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_bootstrap_fontlist (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
GtkTreeView *treeview = GTK_TREE_VIEW (priv->family_face_list);
|
|
GtkCellRenderer *cell;
|
|
GtkTreeViewColumn *col;
|
|
|
|
priv->model = GTK_TREE_MODEL (gtk_list_store_new (4,
|
|
PANGO_TYPE_FONT_FAMILY,
|
|
PANGO_TYPE_FONT_FACE,
|
|
PANGO_TYPE_FONT_DESCRIPTION,
|
|
G_TYPE_STRING));
|
|
|
|
priv->filter_model = gtk_tree_model_filter_new (priv->model, NULL);
|
|
g_object_unref (priv->model);
|
|
|
|
gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (priv->filter_model),
|
|
visible_func, (gpointer)priv, NULL);
|
|
|
|
gtk_tree_view_set_model (treeview, priv->filter_model);
|
|
g_object_unref (priv->filter_model);
|
|
|
|
gtk_tree_view_set_rules_hint (treeview, TRUE);
|
|
gtk_tree_view_set_headers_visible (treeview, FALSE);
|
|
|
|
cell = gtk_cell_renderer_text_new ();
|
|
g_object_set (cell, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
|
|
|
|
col = gtk_tree_view_column_new ();
|
|
gtk_tree_view_column_set_title (col, _("Font Family"));
|
|
gtk_tree_view_column_pack_start (col, cell, TRUE);
|
|
gtk_tree_view_column_set_cell_data_func (col,
|
|
cell,
|
|
gtk_font_chooser_widget_cell_data_func,
|
|
fontchooser,
|
|
NULL);
|
|
|
|
gtk_tree_view_append_column (treeview, col);
|
|
|
|
gtk_font_chooser_widget_load_fonts (fontchooser);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_finalize (GObject *object)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (object);
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
|
|
if (priv->font_desc)
|
|
pango_font_description_free (priv->font_desc);
|
|
|
|
if (priv->family)
|
|
g_object_unref (priv->family);
|
|
|
|
if (priv->face)
|
|
g_object_unref (priv->face);
|
|
|
|
if (priv->filter_data_destroy)
|
|
priv->filter_data_destroy (priv->filter_data);
|
|
|
|
G_OBJECT_CLASS (gtk_font_chooser_widget_parent_class)->finalize (object);
|
|
}
|
|
|
|
static gboolean
|
|
gtk_font_chooser_widget_find_font (GtkFontChooserWidget *fontchooser,
|
|
const PangoFontDescription *font_desc,
|
|
/* out arguments */
|
|
GtkTreeIter *iter,
|
|
PangoFontFamily **family,
|
|
PangoFontFace **face)
|
|
{
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
PangoFontDescription *desc;
|
|
gboolean valid;
|
|
|
|
for (valid = gtk_tree_model_get_iter_first (priv->model, iter);
|
|
valid;
|
|
valid = gtk_tree_model_iter_next (priv->model, iter))
|
|
{
|
|
gtk_tree_model_get (priv->model, iter,
|
|
FACE_COLUMN, face,
|
|
FAMILY_COLUMN, family,
|
|
FONT_DESC_COLUMN, &desc,
|
|
-1);
|
|
|
|
pango_font_description_merge_static (desc, font_desc, FALSE);
|
|
if (pango_font_description_equal (desc, font_desc))
|
|
break;
|
|
|
|
g_object_unref (face);
|
|
g_object_unref (family);
|
|
pango_font_description_free (desc);
|
|
}
|
|
|
|
return valid;
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_screen_changed (GtkWidget *widget,
|
|
GdkScreen *previous_screen)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (widget);
|
|
|
|
if (GTK_WIDGET_CLASS (gtk_font_chooser_widget_parent_class)->screen_changed)
|
|
GTK_WIDGET_CLASS (gtk_font_chooser_widget_parent_class)->screen_changed (widget, previous_screen);
|
|
|
|
if (previous_screen == NULL)
|
|
previous_screen = gdk_screen_get_default ();
|
|
|
|
if (previous_screen == gtk_widget_get_screen (widget))
|
|
return;
|
|
|
|
gtk_font_chooser_widget_load_fonts (fontchooser);
|
|
|
|
gtk_font_chooser_widget_select_font (fontchooser);
|
|
}
|
|
|
|
static PangoFontFamily *
|
|
gtk_font_chooser_widget_get_family (GtkFontChooser *chooser)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
|
|
|
|
return fontchooser->priv->family;
|
|
}
|
|
|
|
static PangoFontFace *
|
|
gtk_font_chooser_widget_get_face (GtkFontChooser *chooser)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
|
|
|
|
return fontchooser->priv->face;
|
|
}
|
|
|
|
static gint
|
|
gtk_font_chooser_widget_get_size (GtkFontChooser *chooser)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
|
|
|
|
return pango_font_description_get_size (fontchooser->priv->font_desc);
|
|
}
|
|
|
|
static gchar *
|
|
gtk_font_chooser_widget_get_font (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
return pango_font_description_to_string (fontchooser->priv->font_desc);
|
|
}
|
|
|
|
static PangoFontDescription *
|
|
gtk_font_chooser_widget_get_font_desc (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
return fontchooser->priv->font_desc;
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_set_font (GtkFontChooserWidget *fontchooser,
|
|
const gchar *fontname)
|
|
{
|
|
PangoFontDescription *font_desc;
|
|
|
|
font_desc = pango_font_description_from_string (fontname);
|
|
gtk_font_chooser_widget_take_font_desc (fontchooser, font_desc);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_take_font_desc (GtkFontChooserWidget *fontchooser,
|
|
PangoFontDescription *font_desc)
|
|
{
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
PangoFontMask mask;
|
|
|
|
if (font_desc && priv->font_desc &&
|
|
pango_font_description_equal (font_desc, priv->font_desc))
|
|
{
|
|
pango_font_description_free (font_desc);
|
|
return;
|
|
}
|
|
|
|
if (font_desc == NULL)
|
|
font_desc = pango_font_description_from_string (GTK_FONT_CHOOSER_DEFAULT_FONT_NAME);
|
|
|
|
pango_font_description_merge (priv->font_desc, font_desc, TRUE);
|
|
|
|
mask = pango_font_description_get_set_fields (font_desc);
|
|
|
|
if (mask & PANGO_FONT_MASK_SIZE)
|
|
{
|
|
double font_size = (double) pango_font_description_get_size (priv->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 (priv->size_slider), font_size);
|
|
gtk_spin_button_set_value (GTK_SPIN_BUTTON (priv->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))
|
|
gtk_font_chooser_widget_select_font (fontchooser);
|
|
|
|
gtk_widget_override_font (priv->preview, priv->font_desc);
|
|
|
|
pango_font_description_free (font_desc); /* adopted */
|
|
|
|
g_object_notify (G_OBJECT (fontchooser), "font");
|
|
g_object_notify (G_OBJECT (fontchooser), "font-desc");
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_select_font (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
GtkTreeIter iter;
|
|
|
|
if (priv->family)
|
|
g_object_unref (priv->family);
|
|
if (priv->face)
|
|
g_object_unref (priv->face);
|
|
|
|
if (gtk_font_chooser_widget_find_font (fontchooser,
|
|
priv->font_desc,
|
|
&priv->font_iter,
|
|
&priv->family,
|
|
&priv->face))
|
|
{
|
|
GtkTreeIter filter_iter;
|
|
|
|
if (gtk_tree_model_filter_convert_child_iter_to_iter (GTK_TREE_MODEL_FILTER (priv->filter_model),
|
|
&filter_iter,
|
|
&iter))
|
|
{
|
|
GtkTreePath *path = gtk_tree_model_get_path (priv->filter_model, &filter_iter);
|
|
gtk_tree_view_set_cursor (GTK_TREE_VIEW (priv->family_face_list),
|
|
path,
|
|
NULL,
|
|
FALSE);
|
|
gtk_tree_path_free (path);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
gtk_tree_selection_unselect_all
|
|
(gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->family_face_list)));
|
|
priv->face = NULL;
|
|
priv->family = NULL;
|
|
memset (&priv->font_iter, 0, sizeof (GtkTreeIter));
|
|
}
|
|
}
|
|
|
|
static const gchar*
|
|
gtk_font_chooser_widget_get_preview_text (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
return fontchooser->priv->preview_text;
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_set_preview_text (GtkFontChooserWidget *fontchooser,
|
|
const gchar *text)
|
|
{
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
|
|
g_free (priv->preview_text);
|
|
priv->preview_text = g_strdup (text);
|
|
|
|
gtk_entry_set_text (GTK_ENTRY (priv->preview), text);
|
|
|
|
g_object_notify (G_OBJECT (fontchooser), "preview-text");
|
|
|
|
/* XXX: There's no API to tell the treeview that a column has changed,
|
|
* so we just */
|
|
gtk_widget_queue_draw (priv->family_face_list);
|
|
}
|
|
|
|
static gboolean
|
|
gtk_font_chooser_widget_get_show_preview_entry (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
return fontchooser->priv->show_preview_entry;
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_set_show_preview_entry (GtkFontChooserWidget *fontchooser,
|
|
gboolean show_preview_entry)
|
|
{
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
|
|
if (priv->show_preview_entry != show_preview_entry)
|
|
{
|
|
fontchooser->priv->show_preview_entry = show_preview_entry;
|
|
|
|
if (show_preview_entry)
|
|
gtk_widget_show (fontchooser->priv->preview);
|
|
else
|
|
gtk_widget_hide (fontchooser->priv->preview);
|
|
|
|
g_object_notify (G_OBJECT (fontchooser), "show-preview-entry");
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_set_filter_func (GtkFontChooser *chooser,
|
|
GtkFontFilterFunc filter,
|
|
gpointer data,
|
|
GDestroyNotify destroy)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
|
|
if (priv->filter_data_destroy)
|
|
priv->filter_data_destroy (priv->filter_data);
|
|
|
|
priv->filter_func = filter;
|
|
priv->filter_data = data;
|
|
priv->filter_data_destroy = destroy;
|
|
|
|
gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (priv->filter_model));
|
|
}
|
|
|
|
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;
|
|
}
|