forked from AuroraMiddleware/gtk
1420 lines
48 KiB
C
1420 lines
48 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 <atk/atk.h>
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#include "gtkfontchooserwidget.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 "gtkcellrenderertext.h"
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#include "gtkcssnumbervalueprivate.h"
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#include "gtkentry.h"
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#include "gtksearchentry.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 "gtkliststore.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 "gtkspinbutton.h"
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#include "gtkstylecontextprivate.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 "gtkwidget.h"
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#include "gtksettings.h"
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#include "gtkdialog.h"
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/**
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* SECTION:gtkfontchooserwidget
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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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* # 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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* Since: 3.2
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*/
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struct _GtkFontChooserWidgetPrivate
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{
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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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GtkTreeViewColumn *family_face_column;
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GtkCellRenderer *family_face_cell;
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GtkWidget *list_scrolled_window;
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GtkWidget *list_stack;
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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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PangoFontMap *font_map;
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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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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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};
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/* Keep in line with GtkTreeStore defined in gtkfontchooserwidget.ui */
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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_style_updated (GtkWidget *widget);
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static gboolean gtk_font_chooser_widget_find_font (GtkFontChooserWidget *fontchooser,
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const PangoFontDescription *font_desc,
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GtkTreeIter *iter);
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static void gtk_font_chooser_widget_ensure_selection (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_merge_font_desc(GtkFontChooserWidget *fontchooser,
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const PangoFontDescription *font_desc,
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GtkTreeIter *iter);
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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_set_cell_size (GtkFontChooserWidget *fontchooser);
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static void gtk_font_chooser_widget_load_fonts (GtkFontChooserWidget *fontchooser,
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gboolean force);
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static gboolean visible_func (GtkTreeModel *model,
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GtkTreeIter *iter,
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gpointer user_data);
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static void gtk_font_chooser_widget_cell_data_func (GtkTreeViewColumn *column,
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GtkCellRenderer *cell,
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GtkTreeModel *tree_model,
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GtkTreeIter *iter,
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gpointer user_data);
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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_ADD_PRIVATE (GtkFontChooserWidget)
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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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typedef struct _GtkDelayedFontDescription GtkDelayedFontDescription;
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struct _GtkDelayedFontDescription {
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PangoFontFace *face;
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PangoFontDescription *desc;
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guint ref_count;
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};
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static GtkDelayedFontDescription *
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gtk_delayed_font_description_new (PangoFontFace *face)
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{
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GtkDelayedFontDescription *result;
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result = g_slice_new0 (GtkDelayedFontDescription);
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result->face = g_object_ref (face);
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result->desc = NULL;
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result->ref_count = 1;
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return result;
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}
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static GtkDelayedFontDescription *
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gtk_delayed_font_description_ref (GtkDelayedFontDescription *desc)
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{
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desc->ref_count++;
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return desc;
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}
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static void
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gtk_delayed_font_description_unref (GtkDelayedFontDescription *desc)
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{
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desc->ref_count--;
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if (desc->ref_count > 0)
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return;
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g_object_unref (desc->face);
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if (desc->desc)
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pango_font_description_free (desc->desc);
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g_slice_free (GtkDelayedFontDescription, desc);
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}
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static const PangoFontDescription *
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gtk_delayed_font_description_get (GtkDelayedFontDescription *desc)
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{
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if (desc->desc == NULL)
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desc->desc = pango_font_face_describe (desc->face);
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return desc->desc;
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}
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#define GTK_TYPE_DELAYED_FONT_DESCRIPTION (gtk_delayed_font_description_get_type ())
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GType gtk_delayed_font_description_get_type (void);
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G_DEFINE_BOXED_TYPE (GtkDelayedFontDescription, gtk_delayed_font_description,
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gtk_delayed_font_description_ref,
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gtk_delayed_font_description_unref)
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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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gtk_font_chooser_widget_refilter_font_list (GtkFontChooserWidget *fontchooser)
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{
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gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (fontchooser->priv->filter_model));
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gtk_font_chooser_widget_ensure_selection (fontchooser);
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}
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static void
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text_changed_cb (GtkEntry *entry,
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GtkFontChooserWidget *fc)
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{
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gtk_font_chooser_widget_refilter_font_list (fc);
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}
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static void
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stop_search_cb (GtkEntry *entry,
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GtkFontChooserWidget *fc)
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{
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if (gtk_entry_get_text (entry)[0] != 0)
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gtk_entry_set_text (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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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 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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gchar *text;
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gdouble 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_entry_set_text (GTK_ENTRY (spin), text);
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g_free (text);
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return TRUE;
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}
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static void
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gtk_font_chooser_widget_update_marks (GtkFontChooserWidget *fontchooser)
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{
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GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
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GtkAdjustment *adj, *spin_adj;
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const int *sizes;
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gint *font_sizes;
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gint i, n_sizes;
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gdouble value, spin_value;
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if (gtk_list_store_iter_is_valid (GTK_LIST_STORE (priv->model), &priv->font_iter))
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{
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PangoFontFace *face;
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gtk_tree_model_get (priv->model, &priv->font_iter,
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FACE_COLUMN, &face,
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-1);
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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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g_object_unref (face);
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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 gint 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 (priv->size_slider));
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adj = gtk_range_get_adjustment (GTK_RANGE (priv->size_slider));
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spin_adj = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->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 = (gdouble) sizes[0];
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else if (spin_value > sizes[n_sizes - 1])
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value = (gdouble)sizes[n_sizes - 1];
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else
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value = (gdouble)spin_value;
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/* ensure clamping doesn't callback into font resizing code */
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g_signal_handlers_block_by_func (adj, size_change_cb, fontchooser);
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gtk_adjustment_configure (adj,
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value,
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sizes[0],
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sizes[n_sizes - 1],
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gtk_adjustment_get_step_increment (adj),
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gtk_adjustment_get_page_increment (adj),
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gtk_adjustment_get_page_size (adj));
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g_signal_handlers_unblock_by_func (adj, size_change_cb, fontchooser);
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for (i = 0; i < n_sizes; i++)
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{
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gtk_scale_add_mark (GTK_SCALE (priv->size_slider),
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sizes[i],
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GTK_POS_BOTTOM, NULL);
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}
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g_free (font_sizes);
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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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GtkDelayedFontDescription *desc;
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GtkTreeIter filter_iter, 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, &filter_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_path_free (path);
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gtk_tree_model_filter_convert_iter_to_child_iter (GTK_TREE_MODEL_FILTER (priv->filter_model),
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&iter,
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&filter_iter);
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gtk_tree_model_get (priv->model, &iter,
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FONT_DESC_COLUMN, &desc,
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-1);
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gtk_font_chooser_widget_merge_font_desc (fontchooser,
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gtk_delayed_font_description_get (desc),
|
|
&iter);
|
|
|
|
gtk_delayed_font_description_unref (desc);
|
|
}
|
|
|
|
static gboolean
|
|
resize_by_scroll_cb (GtkWidget *scrolled_window,
|
|
GdkEventScroll *event,
|
|
gpointer user_data)
|
|
{
|
|
GtkFontChooserWidget *fc = user_data;
|
|
GtkFontChooserWidgetPrivate *priv = fc->priv;
|
|
GtkAdjustment *adj = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->size_spin));
|
|
|
|
if (event->direction == GDK_SCROLL_UP || event->direction == GDK_SCROLL_RIGHT)
|
|
gtk_adjustment_set_value (adj,
|
|
gtk_adjustment_get_value (adj) +
|
|
gtk_adjustment_get_step_increment (adj));
|
|
else if (event->direction == GDK_SCROLL_DOWN || event->direction == GDK_SCROLL_LEFT)
|
|
gtk_adjustment_set_value (adj,
|
|
gtk_adjustment_get_value (adj) -
|
|
gtk_adjustment_get_step_increment (adj));
|
|
else if (event->direction == GDK_SCROLL_SMOOTH && event->delta_x != 0.0)
|
|
gtk_adjustment_set_value (adj,
|
|
gtk_adjustment_get_value (adj) +
|
|
gtk_adjustment_get_step_increment (adj) * event->delta_x);
|
|
else if (event->direction == GDK_SCROLL_SMOOTH && event->delta_y != 0.0)
|
|
gtk_adjustment_set_value (adj,
|
|
gtk_adjustment_get_value (adj) -
|
|
gtk_adjustment_get_step_increment (adj) * event->delta_y);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_update_preview_attributes (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
GtkFontChooserWidgetPrivate *priv;
|
|
PangoAttrList *attrs;
|
|
|
|
priv = fontchooser->priv;
|
|
|
|
attrs = pango_attr_list_new ();
|
|
|
|
/* Prevent font fallback */
|
|
pango_attr_list_insert (attrs, pango_attr_fallback_new (FALSE));
|
|
|
|
/* Force current font */
|
|
pango_attr_list_insert (attrs, pango_attr_font_desc_new (priv->font_desc));
|
|
|
|
gtk_entry_set_attributes (GTK_ENTRY (priv->preview), attrs);
|
|
pango_attr_list_unref (attrs);
|
|
}
|
|
|
|
static void
|
|
row_inserted_cb (GtkTreeModel *model,
|
|
GtkTreePath *path,
|
|
GtkTreeIter *iter,
|
|
gpointer user_data)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = user_data;
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
|
|
gtk_stack_set_visible_child_name (GTK_STACK (priv->list_stack), "list");
|
|
}
|
|
|
|
static void
|
|
row_deleted_cb (GtkTreeModel *model,
|
|
GtkTreePath *path,
|
|
gpointer user_data)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = user_data;
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
|
|
if (gtk_tree_model_iter_n_children (model, NULL) == 0)
|
|
gtk_stack_set_visible_child_name (GTK_STACK (priv->list_stack), "empty");
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_measure (GtkWidget *widget,
|
|
GtkOrientation orientation,
|
|
int for_size,
|
|
int *minimum,
|
|
int *natural,
|
|
int *minimum_baseline,
|
|
int *natural_baseline)
|
|
{
|
|
GtkFontChooserWidget *self = GTK_FONT_CHOOSER_WIDGET (widget);
|
|
GtkFontChooserWidgetPrivate *priv = gtk_font_chooser_widget_get_instance_private (self);
|
|
|
|
gtk_widget_measure (priv->grid, orientation, for_size,
|
|
minimum, natural,
|
|
minimum_baseline, natural_baseline);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_snapshot (GtkWidget *widget,
|
|
GtkSnapshot *snapshot)
|
|
{
|
|
GtkFontChooserWidget *self = GTK_FONT_CHOOSER_WIDGET (widget);
|
|
GtkFontChooserWidgetPrivate *priv = gtk_font_chooser_widget_get_instance_private (self);
|
|
|
|
gtk_widget_snapshot_child (widget, priv->grid, snapshot);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_size_allocate (GtkWidget *widget,
|
|
GtkAllocation *allocation)
|
|
{
|
|
GtkFontChooserWidget *self = GTK_FONT_CHOOSER_WIDGET (widget);
|
|
GtkFontChooserWidgetPrivate *priv = gtk_font_chooser_widget_get_instance_private (self);
|
|
|
|
GTK_WIDGET_CLASS (gtk_font_chooser_widget_parent_class)->size_allocate (widget, allocation);
|
|
|
|
gtk_widget_size_allocate (priv->grid, allocation);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_dispose (GObject *object)
|
|
{
|
|
GtkFontChooserWidget *self = GTK_FONT_CHOOSER_WIDGET (object);
|
|
GtkFontChooserWidgetPrivate *priv = gtk_font_chooser_widget_get_instance_private (self);
|
|
|
|
if (priv->grid)
|
|
{
|
|
gtk_widget_unparent (priv->grid);
|
|
priv->grid = NULL;
|
|
}
|
|
|
|
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);
|
|
|
|
g_type_ensure (GTK_TYPE_DELAYED_FONT_DESCRIPTION);
|
|
g_type_ensure (G_TYPE_THEMED_ICON);
|
|
|
|
widget_class->screen_changed = gtk_font_chooser_widget_screen_changed;
|
|
widget_class->style_updated = gtk_font_chooser_widget_style_updated;
|
|
widget_class->measure = gtk_font_chooser_widget_measure;
|
|
widget_class->size_allocate = gtk_font_chooser_widget_size_allocate;
|
|
widget_class->snapshot = gtk_font_chooser_widget_snapshot;
|
|
|
|
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;
|
|
|
|
_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_private (widget_class, GtkFontChooserWidget, search_entry);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkFontChooserWidget, family_face_list);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkFontChooserWidget, family_face_column);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkFontChooserWidget, family_face_cell);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkFontChooserWidget, list_scrolled_window);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkFontChooserWidget, list_stack);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkFontChooserWidget, model);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkFontChooserWidget, filter_model);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkFontChooserWidget, preview);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkFontChooserWidget, size_spin);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkFontChooserWidget, size_slider);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkFontChooserWidget, grid);
|
|
|
|
gtk_widget_class_bind_template_callback (widget_class, text_changed_cb);
|
|
gtk_widget_class_bind_template_callback (widget_class, stop_search_cb);
|
|
gtk_widget_class_bind_template_callback (widget_class, cursor_changed_cb);
|
|
gtk_widget_class_bind_template_callback (widget_class, row_activated_cb);
|
|
gtk_widget_class_bind_template_callback (widget_class, gtk_font_chooser_widget_set_cell_size);
|
|
gtk_widget_class_bind_template_callback (widget_class, resize_by_scroll_cb);
|
|
gtk_widget_class_bind_template_callback (widget_class, row_deleted_cb);
|
|
gtk_widget_class_bind_template_callback (widget_class, row_inserted_cb);
|
|
gtk_widget_class_bind_template_callback (widget_class, row_deleted_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_set_css_name (widget_class, "fontchooser");
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_init (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
GtkFontChooserWidgetPrivate *priv;
|
|
|
|
fontchooser->priv = gtk_font_chooser_widget_get_instance_private (fontchooser);
|
|
priv = fontchooser->priv;
|
|
|
|
gtk_widget_set_has_window (GTK_WIDGET (fontchooser), FALSE);
|
|
|
|
gtk_widget_init_template (GTK_WIDGET (fontchooser));
|
|
|
|
/* 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 ();
|
|
|
|
/* Set default preview text */
|
|
gtk_entry_set_text (GTK_ENTRY (priv->preview), priv->preview_text);
|
|
|
|
gtk_font_chooser_widget_update_preview_attributes (fontchooser);
|
|
|
|
gtk_widget_add_events (priv->preview, GDK_SCROLL_MASK);
|
|
|
|
/* Set the upper values of the spin/scale with G_MAXINT / PANGO_SCALE */
|
|
gtk_spin_button_set_range (GTK_SPIN_BUTTON (priv->size_spin),
|
|
1.0, (gdouble)(G_MAXINT / PANGO_SCALE));
|
|
gtk_adjustment_set_upper (gtk_range_get_adjustment (GTK_RANGE (priv->size_slider)),
|
|
(gdouble)(G_MAXINT / PANGO_SCALE));
|
|
|
|
/* Setup treeview/model auxilary functions */
|
|
gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (priv->filter_model),
|
|
visible_func, (gpointer)priv, NULL);
|
|
|
|
gtk_tree_view_column_set_cell_data_func (priv->family_face_column,
|
|
priv->family_face_cell,
|
|
gtk_font_chooser_widget_cell_data_func,
|
|
fontchooser,
|
|
NULL);
|
|
|
|
/* Load data and set initial style-dependent parameters */
|
|
gtk_font_chooser_widget_load_fonts (fontchooser, TRUE);
|
|
gtk_font_chooser_widget_set_cell_size (fontchooser);
|
|
gtk_font_chooser_widget_take_font_desc (fontchooser, NULL);
|
|
}
|
|
|
|
/**
|
|
* gtk_font_chooser_widget_new:
|
|
*
|
|
* Creates a new #GtkFontChooserWidget.
|
|
*
|
|
* Returns: 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,
|
|
gboolean force)
|
|
{
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
GtkListStore *list_store;
|
|
gint n_families, i;
|
|
PangoFontFamily **families;
|
|
gchar *family_and_face;
|
|
guint fontconfig_timestamp;
|
|
gboolean need_reload;
|
|
PangoFontMap *font_map;
|
|
|
|
g_object_get (gtk_widget_get_settings (GTK_WIDGET (fontchooser)),
|
|
"gtk-fontconfig-timestamp", &fontconfig_timestamp,
|
|
NULL);
|
|
|
|
/* The fontconfig timestamp is only set on systems with fontconfig; every
|
|
* other platform will set it to 0. For those systems, we fall back to
|
|
* reloading the fonts every time.
|
|
*/
|
|
need_reload = fontconfig_timestamp == 0 ||
|
|
fontconfig_timestamp != priv->last_fontconfig_timestamp;
|
|
|
|
priv->last_fontconfig_timestamp = fontconfig_timestamp;
|
|
|
|
if (!need_reload && !force)
|
|
return;
|
|
|
|
list_store = GTK_LIST_STORE (priv->model);
|
|
|
|
if (priv->font_map)
|
|
font_map = priv->font_map;
|
|
else
|
|
font_map = pango_cairo_font_map_get_default ();
|
|
pango_font_map_list_families (font_map, &families, &n_families);
|
|
|
|
qsort (families, n_families, sizeof (PangoFontFamily *), cmp_families);
|
|
|
|
g_signal_handlers_block_by_func (priv->family_face_list, cursor_changed_cb, fontchooser);
|
|
gtk_list_store_clear (list_store);
|
|
g_signal_handlers_unblock_by_func (priv->family_face_list, cursor_changed_cb, fontchooser);
|
|
|
|
/* 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++)
|
|
{
|
|
GtkDelayedFontDescription *desc;
|
|
const gchar *face_name;
|
|
|
|
face_name = pango_font_face_get_face_name (faces[j]);
|
|
|
|
family_and_face = g_strconcat (fam_name, " ", face_name, NULL);
|
|
desc = gtk_delayed_font_description_new (faces[j]);
|
|
|
|
gtk_list_store_insert_with_values (list_store, &iter, -1,
|
|
FAMILY_COLUMN, families[i],
|
|
FACE_COLUMN, faces[j],
|
|
FONT_DESC_COLUMN, desc,
|
|
PREVIEW_TITLE_COLUMN, family_and_face,
|
|
-1);
|
|
|
|
g_free (family_and_face);
|
|
gtk_delayed_font_description_unref (desc);
|
|
}
|
|
|
|
g_free (faces);
|
|
}
|
|
|
|
g_free (families);
|
|
|
|
/* now make sure the font list looks right */
|
|
if (!gtk_font_chooser_widget_find_font (fontchooser, priv->font_desc, &priv->font_iter))
|
|
memset (&priv->font_iter, 0, sizeof (GtkTreeIter));
|
|
|
|
gtk_font_chooser_widget_ensure_selection (fontchooser);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
/* in pango units */
|
|
static int
|
|
gtk_font_chooser_widget_get_preview_text_height (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
GtkWidget *treeview = fontchooser->priv->family_face_list;
|
|
GtkStyleContext *context;
|
|
double dpi, font_size;
|
|
|
|
context = gtk_widget_get_style_context (treeview);
|
|
dpi = _gtk_css_number_value_get (_gtk_style_context_peek_property (context,
|
|
GTK_CSS_PROPERTY_DPI),
|
|
100);
|
|
gtk_style_context_get (context,
|
|
"font-size", &font_size,
|
|
NULL);
|
|
|
|
return (dpi < 0.0 ? 96.0 : dpi) / 72.0 * PANGO_SCALE_X_LARGE * font_size * PANGO_SCALE;
|
|
}
|
|
|
|
static PangoAttrList *
|
|
gtk_font_chooser_widget_get_preview_attributes (GtkFontChooserWidget *fontchooser,
|
|
const PangoFontDescription *font_desc,
|
|
gsize first_line_len)
|
|
{
|
|
PangoAttribute *attribute;
|
|
PangoAttrList *attrs;
|
|
|
|
attrs = pango_attr_list_new ();
|
|
|
|
attribute = pango_attr_weight_new (PANGO_WEIGHT_BOLD);
|
|
attribute->end_index = first_line_len;
|
|
pango_attr_list_insert (attrs, attribute);
|
|
|
|
attribute = pango_attr_scale_new (PANGO_SCALE_SMALL);
|
|
attribute->end_index = first_line_len;
|
|
pango_attr_list_insert (attrs, attribute);
|
|
|
|
if (font_desc)
|
|
{
|
|
attribute = pango_attr_font_desc_new (font_desc);
|
|
attribute->start_index = first_line_len;
|
|
pango_attr_list_insert (attrs, attribute);
|
|
}
|
|
|
|
attribute = pango_attr_fallback_new (FALSE);
|
|
attribute->start_index = first_line_len;
|
|
pango_attr_list_insert (attrs, attribute);
|
|
|
|
attribute = pango_attr_size_new_absolute (gtk_font_chooser_widget_get_preview_text_height (fontchooser));
|
|
attribute->start_index = first_line_len;
|
|
pango_attr_list_insert (attrs, attribute);
|
|
|
|
return attrs;
|
|
}
|
|
|
|
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;
|
|
GtkDelayedFontDescription *desc;
|
|
PangoAttrList *attrs;
|
|
char *preview_title, *text;
|
|
gsize first_line_len;
|
|
|
|
gtk_tree_model_get (tree_model, iter,
|
|
PREVIEW_TITLE_COLUMN, &preview_title,
|
|
FONT_DESC_COLUMN, &desc,
|
|
-1);
|
|
|
|
text = g_strconcat (preview_title, "\n", fontchooser->priv->preview_text, NULL);
|
|
first_line_len = strlen (preview_title) + 1;
|
|
|
|
attrs = gtk_font_chooser_widget_get_preview_attributes (fontchooser,
|
|
gtk_delayed_font_description_get (desc),
|
|
first_line_len);
|
|
|
|
g_object_set (cell,
|
|
"attributes", attrs,
|
|
"text", text,
|
|
NULL);
|
|
|
|
gtk_delayed_font_description_unref (desc);
|
|
pango_attr_list_unref (attrs);
|
|
g_free (text);
|
|
g_free (preview_title);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_set_cell_size (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
PangoAttrList *attrs;
|
|
GtkRequisition size;
|
|
|
|
gtk_cell_renderer_set_fixed_size (priv->family_face_cell, -1, -1);
|
|
|
|
attrs = gtk_font_chooser_widget_get_preview_attributes (fontchooser,
|
|
NULL,
|
|
1);
|
|
|
|
g_object_set (priv->family_face_cell,
|
|
"attributes", attrs,
|
|
"text", "x\nx",
|
|
NULL);
|
|
|
|
pango_attr_list_unref (attrs);
|
|
|
|
gtk_cell_renderer_get_preferred_size (priv->family_face_cell,
|
|
priv->family_face_list,
|
|
&size,
|
|
NULL);
|
|
gtk_cell_renderer_set_fixed_size (priv->family_face_cell, size.width, size.height);
|
|
}
|
|
|
|
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->filter_data_destroy)
|
|
priv->filter_data_destroy (priv->filter_data);
|
|
|
|
g_free (priv->preview_text);
|
|
|
|
g_clear_object (&priv->font_map);
|
|
|
|
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_find_font (GtkFontChooserWidget *fontchooser,
|
|
const PangoFontDescription *font_desc,
|
|
/* out arguments */
|
|
GtkTreeIter *iter)
|
|
{
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
gboolean valid;
|
|
|
|
if (pango_font_description_get_family (font_desc) == NULL)
|
|
return FALSE;
|
|
|
|
for (valid = gtk_tree_model_get_iter_first (priv->model, iter);
|
|
valid;
|
|
valid = gtk_tree_model_iter_next (priv->model, iter))
|
|
{
|
|
GtkDelayedFontDescription *desc;
|
|
PangoFontDescription *merged;
|
|
PangoFontFamily *family;
|
|
|
|
gtk_tree_model_get (priv->model, iter,
|
|
FAMILY_COLUMN, &family,
|
|
FONT_DESC_COLUMN, &desc,
|
|
-1);
|
|
|
|
if (!my_pango_font_family_equal (pango_font_description_get_family (font_desc),
|
|
pango_font_family_get_name (family)))
|
|
{
|
|
gtk_delayed_font_description_unref (desc);
|
|
g_object_unref (family);
|
|
continue;
|
|
}
|
|
|
|
merged = pango_font_description_copy_static (gtk_delayed_font_description_get (desc));
|
|
|
|
pango_font_description_merge_static (merged, font_desc, FALSE);
|
|
if (pango_font_description_equal (merged, font_desc))
|
|
{
|
|
gtk_delayed_font_description_unref (desc);
|
|
pango_font_description_free (merged);
|
|
g_object_unref (family);
|
|
break;
|
|
}
|
|
|
|
gtk_delayed_font_description_unref (desc);
|
|
pango_font_description_free (merged);
|
|
g_object_unref (family);
|
|
}
|
|
|
|
return valid;
|
|
}
|
|
|
|
static void
|
|
fontconfig_changed (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
gtk_font_chooser_widget_load_fonts (fontchooser, TRUE);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_screen_changed (GtkWidget *widget,
|
|
GdkScreen *previous_screen)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (widget);
|
|
GtkSettings *settings;
|
|
|
|
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)
|
|
{
|
|
settings = gtk_settings_get_for_screen (previous_screen);
|
|
g_signal_handlers_disconnect_by_func (settings, fontconfig_changed, widget);
|
|
}
|
|
settings = gtk_widget_get_settings (widget);
|
|
g_signal_connect_object (settings, "notify::gtk-fontconfig-timestamp",
|
|
G_CALLBACK (fontconfig_changed), widget, G_CONNECT_SWAPPED);
|
|
|
|
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, FALSE);
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_style_updated (GtkWidget *widget)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (widget);
|
|
|
|
GTK_WIDGET_CLASS (gtk_font_chooser_widget_parent_class)->style_updated (widget);
|
|
|
|
gtk_font_chooser_widget_load_fonts (fontchooser, FALSE);
|
|
}
|
|
|
|
static PangoFontFamily *
|
|
gtk_font_chooser_widget_get_family (GtkFontChooser *chooser)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
PangoFontFamily *family;
|
|
|
|
if (!gtk_list_store_iter_is_valid (GTK_LIST_STORE (priv->model), &priv->font_iter))
|
|
return NULL;
|
|
|
|
gtk_tree_model_get (priv->model, &priv->font_iter,
|
|
FAMILY_COLUMN, &family,
|
|
-1);
|
|
g_object_unref (family);
|
|
|
|
return family;
|
|
}
|
|
|
|
static PangoFontFace *
|
|
gtk_font_chooser_widget_get_face (GtkFontChooser *chooser)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
PangoFontFace *face;
|
|
|
|
if (!gtk_list_store_iter_is_valid (GTK_LIST_STORE (priv->model), &priv->font_iter))
|
|
return NULL;
|
|
|
|
gtk_tree_model_get (priv->model, &priv->font_iter,
|
|
FACE_COLUMN, &face,
|
|
-1);
|
|
g_object_unref (face);
|
|
|
|
return 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_ensure_selection (GtkFontChooserWidget *fontchooser)
|
|
{
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
GtkTreeSelection *selection;
|
|
GtkTreeIter filter_iter;
|
|
|
|
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->family_face_list));
|
|
|
|
if (gtk_list_store_iter_is_valid (GTK_LIST_STORE (priv->model), &priv->font_iter) &&
|
|
gtk_tree_model_filter_convert_child_iter_to_iter (GTK_TREE_MODEL_FILTER (priv->filter_model),
|
|
&filter_iter,
|
|
&priv->font_iter))
|
|
{
|
|
GtkTreePath *path = gtk_tree_model_get_path (GTK_TREE_MODEL (priv->filter_model),
|
|
&filter_iter);
|
|
|
|
gtk_tree_selection_select_iter (selection, &filter_iter);
|
|
gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (priv->family_face_list),
|
|
path, NULL, FALSE, 0.0, 0.0);
|
|
gtk_tree_path_free (path);
|
|
}
|
|
else
|
|
{
|
|
gtk_tree_selection_unselect_all (selection);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_font_chooser_widget_merge_font_desc (GtkFontChooserWidget *fontchooser,
|
|
const PangoFontDescription *font_desc,
|
|
GtkTreeIter *iter)
|
|
{
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
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, priv->font_desc))
|
|
return;
|
|
|
|
pango_font_description_merge (priv->font_desc, font_desc, TRUE);
|
|
|
|
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))
|
|
{
|
|
if (&priv->font_iter != iter)
|
|
{
|
|
if (iter == NULL)
|
|
memset (&priv->font_iter, 0, sizeof (GtkTreeIter));
|
|
else
|
|
memcpy (&priv->font_iter, iter, sizeof (GtkTreeIter));
|
|
|
|
gtk_font_chooser_widget_ensure_selection (fontchooser);
|
|
}
|
|
|
|
gtk_font_chooser_widget_update_marks (fontchooser);
|
|
}
|
|
|
|
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)
|
|
{
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
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);
|
|
if (mask & (PANGO_FONT_MASK_FAMILY | PANGO_FONT_MASK_STYLE | PANGO_FONT_MASK_VARIANT |
|
|
PANGO_FONT_MASK_WEIGHT | PANGO_FONT_MASK_STRETCH))
|
|
{
|
|
GtkTreeIter iter;
|
|
|
|
if (gtk_font_chooser_widget_find_font (fontchooser, font_desc, &iter))
|
|
gtk_font_chooser_widget_merge_font_desc (fontchooser, font_desc, &iter);
|
|
else
|
|
gtk_font_chooser_widget_merge_font_desc (fontchooser, font_desc, NULL);
|
|
}
|
|
else
|
|
{
|
|
gtk_font_chooser_widget_merge_font_desc (fontchooser, font_desc, &priv->font_iter);
|
|
}
|
|
|
|
pango_font_description_free (font_desc);
|
|
}
|
|
|
|
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_font_map (GtkFontChooser *chooser,
|
|
PangoFontMap *fontmap)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
|
|
if (g_set_object (&priv->font_map, fontmap))
|
|
{
|
|
PangoContext *context;
|
|
|
|
if (!fontmap)
|
|
fontmap = pango_cairo_font_map_get_default ();
|
|
|
|
context = gtk_widget_get_pango_context (priv->family_face_list);
|
|
pango_context_set_font_map (context, fontmap);
|
|
|
|
context = gtk_widget_get_pango_context (priv->preview);
|
|
pango_context_set_font_map (context, fontmap);
|
|
|
|
gtk_font_chooser_widget_load_fonts (fontchooser, TRUE);
|
|
}
|
|
}
|
|
|
|
static PangoFontMap *
|
|
gtk_font_chooser_widget_get_font_map (GtkFontChooser *chooser)
|
|
{
|
|
GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
|
|
GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
|
|
|
|
return priv->font_map;
|
|
}
|
|
|
|
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_font_chooser_widget_refilter_font_list (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;
|
|
}
|