/* * GTK - The GIMP Toolkit * Copyright (C) 1998 David Abilleira Freijeiro * All rights reserved. * * Based on gnome-color-picker by Federico Mena * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library. If not, see . */ /* * Modified by the GTK+ Team and others 2003. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #include "config.h" #include "gtkfontbutton.h" #include "gtkmain.h" #include "gtkbox.h" #include "gtklabel.h" #include "gtkfontchooser.h" #include "gtkfontchooserdialog.h" #include "gtkimage.h" #include "gtkmarshalers.h" #include "gtkseparator.h" #include "gtkprivate.h" #include "gtkintl.h" #include "gtkcssprovider.h" #include #include #include "gtkfontchooserutils.h" /** * SECTION:gtkfontbutton * @Short_description: A button to launch a font chooser dialog * @Title: GtkFontButton * @See_also: #GtkFontChooserDialog, #GtkColorButton. * * The #GtkFontButton is a button which displays the currently selected * font an allows to open a font chooser dialog to change the font. * It is suitable widget for selecting a font in a preference dialog. * * # CSS nodes * * GtkFontButton has a single CSS node with name button and style class .font. */ struct _GtkFontButtonPrivate { gchar *title; gchar *fontname; guint use_font : 1; guint use_size : 1; guint show_style : 1; guint show_size : 1; guint show_preview_entry : 1; GtkWidget *font_dialog; GtkWidget *font_label; GtkWidget *size_label; GtkWidget *font_size_box; PangoFontDescription *font_desc; PangoFontFamily *font_family; PangoFontFace *font_face; PangoFontMap *font_map; gint font_size; gchar *preview_text; GtkFontFilterFunc font_filter; gpointer font_filter_data; GDestroyNotify font_filter_data_destroy; GtkCssProvider *provider; }; /* Signals */ enum { FONT_SET, LAST_SIGNAL }; enum { PROP_0, PROP_TITLE, PROP_FONT_NAME, PROP_USE_FONT, PROP_USE_SIZE, PROP_SHOW_STYLE, PROP_SHOW_SIZE }; /* Prototypes */ static void gtk_font_button_finalize (GObject *object); static void gtk_font_button_get_property (GObject *object, guint param_id, GValue *value, GParamSpec *pspec); static void gtk_font_button_set_property (GObject *object, guint param_id, const GValue *value, GParamSpec *pspec); static void gtk_font_button_clicked (GtkButton *button); /* Dialog response functions */ static void response_cb (GtkDialog *dialog, gint response_id, gpointer data); static void dialog_destroy (GtkWidget *widget, gpointer data); /* Auxiliary functions */ static void gtk_font_button_label_use_font (GtkFontButton *gfs); static void gtk_font_button_update_font_info (GtkFontButton *gfs); static void font_button_set_font_name (GtkFontButton *font_button, const char *fontname); static guint font_button_signals[LAST_SIGNAL] = { 0 }; static void clear_font_data (GtkFontButton *font_button) { GtkFontButtonPrivate *priv = font_button->priv; if (priv->font_family) g_object_unref (priv->font_family); priv->font_family = NULL; if (priv->font_face) g_object_unref (priv->font_face); priv->font_face = NULL; if (priv->font_desc) pango_font_description_free (priv->font_desc); priv->font_desc = NULL; g_free (priv->fontname); priv->fontname = NULL; } static void clear_font_filter_data (GtkFontButton *font_button) { GtkFontButtonPrivate *priv = font_button->priv; if (priv->font_filter_data_destroy) priv->font_filter_data_destroy (priv->font_filter_data); priv->font_filter = NULL; priv->font_filter_data = NULL; priv->font_filter_data_destroy = NULL; } static gboolean font_description_style_equal (const PangoFontDescription *a, const PangoFontDescription *b) { return (pango_font_description_get_weight (a) == pango_font_description_get_weight (b) && pango_font_description_get_style (a) == pango_font_description_get_style (b) && pango_font_description_get_stretch (a) == pango_font_description_get_stretch (b) && pango_font_description_get_variant (a) == pango_font_description_get_variant (b)); } static void gtk_font_button_update_font_data (GtkFontButton *font_button) { GtkFontButtonPrivate *priv = font_button->priv; PangoFontFamily **families; PangoFontFace **faces; gint n_families, n_faces, i; const gchar *family; g_assert (priv->font_desc != NULL); priv->fontname = pango_font_description_to_string (priv->font_desc); family = pango_font_description_get_family (priv->font_desc); if (family == NULL) return; n_families = 0; families = NULL; pango_context_list_families (gtk_widget_get_pango_context (GTK_WIDGET (font_button)), &families, &n_families); n_faces = 0; faces = NULL; for (i = 0; i < n_families; i++) { const gchar *name = pango_font_family_get_name (families[i]); if (!g_ascii_strcasecmp (name, family)) { priv->font_family = g_object_ref (families[i]); pango_font_family_list_faces (families[i], &faces, &n_faces); break; } } g_free (families); for (i = 0; i < n_faces; i++) { PangoFontDescription *tmp_desc = pango_font_face_describe (faces[i]); if (font_description_style_equal (tmp_desc, priv->font_desc)) { priv->font_face = g_object_ref (faces[i]); pango_font_description_free (tmp_desc); break; } else pango_font_description_free (tmp_desc); } g_free (faces); } static gchar * gtk_font_button_get_preview_text (GtkFontButton *font_button) { GtkFontButtonPrivate *priv = font_button->priv; if (priv->font_dialog) return gtk_font_chooser_get_preview_text (GTK_FONT_CHOOSER (priv->font_dialog)); return g_strdup (priv->preview_text); } static void gtk_font_button_set_preview_text (GtkFontButton *font_button, const gchar *preview_text) { GtkFontButtonPrivate *priv = font_button->priv; if (priv->font_dialog) { gtk_font_chooser_set_preview_text (GTK_FONT_CHOOSER (priv->font_dialog), preview_text); return; } g_free (priv->preview_text); priv->preview_text = g_strdup (preview_text); } static gboolean gtk_font_button_get_show_preview_entry (GtkFontButton *font_button) { GtkFontButtonPrivate *priv = font_button->priv; if (priv->font_dialog) return gtk_font_chooser_get_show_preview_entry (GTK_FONT_CHOOSER (priv->font_dialog)); return priv->show_preview_entry; } static void gtk_font_button_set_show_preview_entry (GtkFontButton *font_button, gboolean show) { GtkFontButtonPrivate *priv = font_button->priv; show = show != FALSE; if (priv->show_preview_entry != show) { priv->show_preview_entry = show; if (priv->font_dialog) gtk_font_chooser_set_show_preview_entry (GTK_FONT_CHOOSER (priv->font_dialog), show); g_object_notify (G_OBJECT (font_button), "show-preview-entry"); } } static PangoFontFamily * gtk_font_button_font_chooser_get_font_family (GtkFontChooser *chooser) { GtkFontButton *font_button = GTK_FONT_BUTTON (chooser); GtkFontButtonPrivate *priv = font_button->priv; return priv->font_family; } static PangoFontFace * gtk_font_button_font_chooser_get_font_face (GtkFontChooser *chooser) { GtkFontButton *font_button = GTK_FONT_BUTTON (chooser); GtkFontButtonPrivate *priv = font_button->priv; return priv->font_face; } static int gtk_font_button_font_chooser_get_font_size (GtkFontChooser *chooser) { GtkFontButton *font_button = GTK_FONT_BUTTON (chooser); GtkFontButtonPrivate *priv = font_button->priv; return priv->font_size; } static void gtk_font_button_font_chooser_set_filter_func (GtkFontChooser *chooser, GtkFontFilterFunc filter_func, gpointer filter_data, GDestroyNotify data_destroy) { GtkFontButton *font_button = GTK_FONT_BUTTON (chooser); GtkFontButtonPrivate *priv = font_button->priv; if (priv->font_dialog) { gtk_font_chooser_set_filter_func (GTK_FONT_CHOOSER (priv->font_dialog), filter_func, filter_data, data_destroy); return; } clear_font_filter_data (font_button); priv->font_filter = filter_func; priv->font_filter_data = filter_data; priv->font_filter_data_destroy = data_destroy; } static void gtk_font_button_take_font_desc (GtkFontButton *font_button, PangoFontDescription *font_desc) { GtkFontButtonPrivate *priv = font_button->priv; GObject *object = G_OBJECT (font_button); if (priv->font_desc && font_desc && pango_font_description_equal (priv->font_desc, font_desc)) { pango_font_description_free (font_desc); return; } g_object_freeze_notify (object); clear_font_data (font_button); if (font_desc) priv->font_desc = font_desc; /* adopted */ else priv->font_desc = pango_font_description_from_string (_("Sans 12")); if (pango_font_description_get_size_is_absolute (priv->font_desc)) priv->font_size = pango_font_description_get_size (priv->font_desc); else priv->font_size = pango_font_description_get_size (priv->font_desc) / PANGO_SCALE; gtk_font_button_update_font_data (font_button); gtk_font_button_update_font_info (font_button); if (priv->font_dialog) gtk_font_chooser_set_font_desc (GTK_FONT_CHOOSER (priv->font_dialog), priv->font_desc); g_object_notify (G_OBJECT (font_button), "font"); g_object_notify (G_OBJECT (font_button), "font-desc"); g_object_notify (G_OBJECT (font_button), "font-name"); g_object_thaw_notify (object); } static const PangoFontDescription * gtk_font_button_get_font_desc (GtkFontButton *font_button) { return font_button->priv->font_desc; } static void gtk_font_button_font_chooser_set_font_map (GtkFontChooser *chooser, PangoFontMap *font_map) { GtkFontButton *font_button = GTK_FONT_BUTTON (chooser); if (g_set_object (&font_button->priv->font_map, font_map)) { PangoContext *context; if (!font_map) font_map = pango_cairo_font_map_get_default (); context = gtk_widget_get_pango_context (font_button->priv->font_label); pango_context_set_font_map (context, font_map); } } static PangoFontMap * gtk_font_button_font_chooser_get_font_map (GtkFontChooser *chooser) { GtkFontButton *font_button = GTK_FONT_BUTTON (chooser); return font_button->priv->font_map; } static void gtk_font_button_font_chooser_notify (GObject *object, GParamSpec *pspec, gpointer user_data) { /* We do not forward the notification of the "font" property to the dialog! */ if (pspec->name == I_("preview-text") || pspec->name == I_("show-preview-entry")) g_object_notify_by_pspec (user_data, pspec); } static void gtk_font_button_font_chooser_iface_init (GtkFontChooserIface *iface) { iface->get_font_family = gtk_font_button_font_chooser_get_font_family; iface->get_font_face = gtk_font_button_font_chooser_get_font_face; iface->get_font_size = gtk_font_button_font_chooser_get_font_size; iface->set_filter_func = gtk_font_button_font_chooser_set_filter_func; iface->set_font_map = gtk_font_button_font_chooser_set_font_map; iface->get_font_map = gtk_font_button_font_chooser_get_font_map; } G_DEFINE_TYPE_WITH_CODE (GtkFontButton, gtk_font_button, GTK_TYPE_BUTTON, G_ADD_PRIVATE (GtkFontButton) G_IMPLEMENT_INTERFACE (GTK_TYPE_FONT_CHOOSER, gtk_font_button_font_chooser_iface_init)) static void gtk_font_button_class_init (GtkFontButtonClass *klass) { GObjectClass *gobject_class; GtkWidgetClass *widget_class; GtkButtonClass *button_class; gobject_class = (GObjectClass *) klass; widget_class = (GtkWidgetClass *) klass; button_class = (GtkButtonClass *) klass; gobject_class->finalize = gtk_font_button_finalize; gobject_class->set_property = gtk_font_button_set_property; gobject_class->get_property = gtk_font_button_get_property; button_class->clicked = gtk_font_button_clicked; klass->font_set = NULL; _gtk_font_chooser_install_properties (gobject_class); /** * GtkFontButton:title: * * The title of the font chooser dialog. * * Since: 2.4 */ g_object_class_install_property (gobject_class, PROP_TITLE, g_param_spec_string ("title", P_("Title"), P_("The title of the font chooser dialog"), _("Pick a Font"), GTK_PARAM_READWRITE)); /** * GtkFontButton:font-name: * * The name of the currently selected font. * * Since: 2.4 * * Deprecated: 3.22: Use the #GtkFontChooser::font property instead */ g_object_class_install_property (gobject_class, PROP_FONT_NAME, g_param_spec_string ("font-name", P_("Font name"), P_("The name of the selected font"), _("Sans 12"), GTK_PARAM_READWRITE | G_PARAM_DEPRECATED)); /** * GtkFontButton:use-font: * * If this property is set to %TRUE, the label will be drawn * in the selected font. * * Since: 2.4 */ g_object_class_install_property (gobject_class, PROP_USE_FONT, g_param_spec_boolean ("use-font", P_("Use font in label"), P_("Whether the label is drawn in the selected font"), FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); /** * GtkFontButton:use-size: * * If this property is set to %TRUE, the label will be drawn * with the selected font size. * * Since: 2.4 */ g_object_class_install_property (gobject_class, PROP_USE_SIZE, g_param_spec_boolean ("use-size", P_("Use size in label"), P_("Whether the label is drawn with the selected font size"), FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); /** * GtkFontButton:show-style: * * If this property is set to %TRUE, the name of the selected font style * will be shown in the label. For a more WYSIWYG way to show the selected * style, see the ::use-font property. * * Since: 2.4 */ g_object_class_install_property (gobject_class, PROP_SHOW_STYLE, g_param_spec_boolean ("show-style", P_("Show style"), P_("Whether the selected font style is shown in the label"), TRUE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); /** * GtkFontButton:show-size: * * If this property is set to %TRUE, the selected font size will be shown * in the label. For a more WYSIWYG way to show the selected size, see the * ::use-size property. * * Since: 2.4 */ g_object_class_install_property (gobject_class, PROP_SHOW_SIZE, g_param_spec_boolean ("show-size", P_("Show size"), P_("Whether selected font size is shown in the label"), TRUE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); /** * GtkFontButton::font-set: * @widget: the object which received the signal. * * The ::font-set signal is emitted when the user selects a font. * When handling this signal, use gtk_font_button_get_font_name() * to find out which font was just selected. * * Note that this signal is only emitted when the user * changes the font. If you need to react to programmatic font changes * as well, use the notify::font signal. * * Since: 2.4 */ font_button_signals[FONT_SET] = g_signal_new (I_("font-set"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GtkFontButtonClass, font_set), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); /* Bind class to template */ gtk_widget_class_set_template_from_resource (widget_class, "/org/gtk/libgtk/ui/gtkfontbutton.ui"); gtk_widget_class_bind_template_child_private (widget_class, GtkFontButton, font_label); gtk_widget_class_bind_template_child_private (widget_class, GtkFontButton, size_label); gtk_widget_class_bind_template_child_private (widget_class, GtkFontButton, font_size_box); gtk_widget_class_set_css_name (widget_class, "button"); } static void gtk_font_button_init (GtkFontButton *font_button) { GtkStyleContext *context; font_button->priv = gtk_font_button_get_instance_private (font_button); /* Initialize fields */ font_button->priv->use_font = FALSE; font_button->priv->use_size = FALSE; font_button->priv->show_style = TRUE; font_button->priv->show_size = TRUE; font_button->priv->show_preview_entry = TRUE; font_button->priv->font_dialog = NULL; font_button->priv->font_family = NULL; font_button->priv->font_face = NULL; font_button->priv->font_size = -1; font_button->priv->title = g_strdup (_("Pick a Font")); gtk_widget_init_template (GTK_WIDGET (font_button)); gtk_font_button_take_font_desc (font_button, NULL); context = gtk_widget_get_style_context (GTK_WIDGET (font_button)); gtk_style_context_add_class (context, "font"); } static void gtk_font_button_finalize (GObject *object) { GtkFontButton *font_button = GTK_FONT_BUTTON (object); GtkFontButtonPrivate *priv = font_button->priv; if (priv->font_dialog != NULL) gtk_widget_destroy (priv->font_dialog); g_free (priv->title); clear_font_data (font_button); clear_font_filter_data (font_button); g_free (priv->preview_text); g_clear_object (&priv->provider); G_OBJECT_CLASS (gtk_font_button_parent_class)->finalize (object); } static void gtk_font_button_set_property (GObject *object, guint param_id, const GValue *value, GParamSpec *pspec) { GtkFontButton *font_button = GTK_FONT_BUTTON (object); switch (param_id) { case GTK_FONT_CHOOSER_PROP_PREVIEW_TEXT: gtk_font_button_set_preview_text (font_button, g_value_get_string (value)); break; case GTK_FONT_CHOOSER_PROP_SHOW_PREVIEW_ENTRY: gtk_font_button_set_show_preview_entry (font_button, g_value_get_boolean (value)); break; case PROP_TITLE: gtk_font_button_set_title (font_button, g_value_get_string (value)); break; case GTK_FONT_CHOOSER_PROP_FONT_DESC: gtk_font_button_take_font_desc (font_button, g_value_dup_boxed (value)); break; case GTK_FONT_CHOOSER_PROP_FONT: case PROP_FONT_NAME: font_button_set_font_name (font_button, g_value_get_string (value)); break; case PROP_USE_FONT: gtk_font_button_set_use_font (font_button, g_value_get_boolean (value)); break; case PROP_USE_SIZE: gtk_font_button_set_use_size (font_button, g_value_get_boolean (value)); break; case PROP_SHOW_STYLE: gtk_font_button_set_show_style (font_button, g_value_get_boolean (value)); break; case PROP_SHOW_SIZE: gtk_font_button_set_show_size (font_button, g_value_get_boolean (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); break; } } static void gtk_font_button_get_property (GObject *object, guint param_id, GValue *value, GParamSpec *pspec) { GtkFontButton *font_button = GTK_FONT_BUTTON (object); switch (param_id) { case GTK_FONT_CHOOSER_PROP_PREVIEW_TEXT: g_value_set_string (value, gtk_font_button_get_preview_text (font_button)); break; case GTK_FONT_CHOOSER_PROP_SHOW_PREVIEW_ENTRY: g_value_set_boolean (value, gtk_font_button_get_show_preview_entry (font_button)); break; case PROP_TITLE: g_value_set_string (value, gtk_font_button_get_title (font_button)); break; case GTK_FONT_CHOOSER_PROP_FONT_DESC: g_value_set_boxed (value, gtk_font_button_get_font_desc (font_button)); break; case GTK_FONT_CHOOSER_PROP_FONT: case PROP_FONT_NAME: g_value_set_string (value, font_button->priv->fontname); break; case PROP_USE_FONT: g_value_set_boolean (value, gtk_font_button_get_use_font (font_button)); break; case PROP_USE_SIZE: g_value_set_boolean (value, gtk_font_button_get_use_size (font_button)); break; case PROP_SHOW_STYLE: g_value_set_boolean (value, gtk_font_button_get_show_style (font_button)); break; case PROP_SHOW_SIZE: g_value_set_boolean (value, gtk_font_button_get_show_size (font_button)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); break; } } /** * gtk_font_button_new: * * Creates a new font picker widget. * * Returns: a new font picker widget. * * Since: 2.4 */ GtkWidget * gtk_font_button_new (void) { return g_object_new (GTK_TYPE_FONT_BUTTON, NULL); } /** * gtk_font_button_new_with_font: * @fontname: Name of font to display in font chooser dialog * * Creates a new font picker widget. * * Returns: a new font picker widget. * * Since: 2.4 */ GtkWidget * gtk_font_button_new_with_font (const gchar *fontname) { return g_object_new (GTK_TYPE_FONT_BUTTON, "font", fontname, NULL); } /** * gtk_font_button_set_title: * @font_button: a #GtkFontButton * @title: a string containing the font chooser dialog title * * Sets the title for the font chooser dialog. * * Since: 2.4 */ void gtk_font_button_set_title (GtkFontButton *font_button, const gchar *title) { gchar *old_title; g_return_if_fail (GTK_IS_FONT_BUTTON (font_button)); old_title = font_button->priv->title; font_button->priv->title = g_strdup (title); g_free (old_title); if (font_button->priv->font_dialog) gtk_window_set_title (GTK_WINDOW (font_button->priv->font_dialog), font_button->priv->title); g_object_notify (G_OBJECT (font_button), "title"); } /** * gtk_font_button_get_title: * @font_button: a #GtkFontButton * * Retrieves the title of the font chooser dialog. * * Returns: an internal copy of the title string which must not be freed. * * Since: 2.4 */ const gchar* gtk_font_button_get_title (GtkFontButton *font_button) { g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), NULL); return font_button->priv->title; } /** * gtk_font_button_get_use_font: * @font_button: a #GtkFontButton * * Returns whether the selected font is used in the label. * * Returns: whether the selected font is used in the label. * * Since: 2.4 */ gboolean gtk_font_button_get_use_font (GtkFontButton *font_button) { g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), FALSE); return font_button->priv->use_font; } /** * gtk_font_button_set_use_font: * @font_button: a #GtkFontButton * @use_font: If %TRUE, font name will be written using font chosen. * * If @use_font is %TRUE, the font name will be written using the selected font. * * Since: 2.4 */ void gtk_font_button_set_use_font (GtkFontButton *font_button, gboolean use_font) { g_return_if_fail (GTK_IS_FONT_BUTTON (font_button)); use_font = (use_font != FALSE); if (font_button->priv->use_font != use_font) { font_button->priv->use_font = use_font; gtk_font_button_label_use_font (font_button); g_object_notify (G_OBJECT (font_button), "use-font"); } } /** * gtk_font_button_get_use_size: * @font_button: a #GtkFontButton * * Returns whether the selected size is used in the label. * * Returns: whether the selected size is used in the label. * * Since: 2.4 */ gboolean gtk_font_button_get_use_size (GtkFontButton *font_button) { g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), FALSE); return font_button->priv->use_size; } /** * gtk_font_button_set_use_size: * @font_button: a #GtkFontButton * @use_size: If %TRUE, font name will be written using the selected size. * * If @use_size is %TRUE, the font name will be written using the selected size. * * Since: 2.4 */ void gtk_font_button_set_use_size (GtkFontButton *font_button, gboolean use_size) { g_return_if_fail (GTK_IS_FONT_BUTTON (font_button)); use_size = (use_size != FALSE); if (font_button->priv->use_size != use_size) { font_button->priv->use_size = use_size; gtk_font_button_label_use_font (font_button); g_object_notify (G_OBJECT (font_button), "use-size"); } } /** * gtk_font_button_get_show_style: * @font_button: a #GtkFontButton * * Returns whether the name of the font style will be shown in the label. * * Returns: whether the font style will be shown in the label. * * Since: 2.4 **/ gboolean gtk_font_button_get_show_style (GtkFontButton *font_button) { g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), FALSE); return font_button->priv->show_style; } /** * gtk_font_button_set_show_style: * @font_button: a #GtkFontButton * @show_style: %TRUE if font style should be displayed in label. * * If @show_style is %TRUE, the font style will be displayed along with name of the selected font. * * Since: 2.4 */ void gtk_font_button_set_show_style (GtkFontButton *font_button, gboolean show_style) { g_return_if_fail (GTK_IS_FONT_BUTTON (font_button)); show_style = (show_style != FALSE); if (font_button->priv->show_style != show_style) { font_button->priv->show_style = show_style; gtk_font_button_update_font_info (font_button); g_object_notify (G_OBJECT (font_button), "show-style"); } } /** * gtk_font_button_get_show_size: * @font_button: a #GtkFontButton * * Returns whether the font size will be shown in the label. * * Returns: whether the font size will be shown in the label. * * Since: 2.4 **/ gboolean gtk_font_button_get_show_size (GtkFontButton *font_button) { g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), FALSE); return font_button->priv->show_size; } /** * gtk_font_button_set_show_size: * @font_button: a #GtkFontButton * @show_size: %TRUE if font size should be displayed in dialog. * * If @show_size is %TRUE, the font size will be displayed along with the name of the selected font. * * Since: 2.4 */ void gtk_font_button_set_show_size (GtkFontButton *font_button, gboolean show_size) { g_return_if_fail (GTK_IS_FONT_BUTTON (font_button)); show_size = (show_size != FALSE); if (font_button->priv->show_size != show_size) { font_button->priv->show_size = show_size; if (font_button->priv->show_size) gtk_widget_show (font_button->priv->font_size_box); else gtk_widget_hide (font_button->priv->font_size_box); gtk_font_button_update_font_info (font_button); g_object_notify (G_OBJECT (font_button), "show-size"); } } /** * gtk_font_button_get_font_name: * @font_button: a #GtkFontButton * * Retrieves the name of the currently selected font. This name includes * style and size information as well. If you want to render something * with the font, use this string with pango_font_description_from_string() . * If you’re interested in peeking certain values (family name, * style, size, weight) just query these properties from the * #PangoFontDescription object. * * Returns: an internal copy of the font name which must not be freed. * * Since: 2.4 * Deprecated: 3.22: Use gtk_font_chooser_get_font() instead */ const gchar * gtk_font_button_get_font_name (GtkFontButton *font_button) { g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), NULL); return font_button->priv->fontname; } static void font_button_set_font_name (GtkFontButton *font_button, const char *fontname) { PangoFontDescription *font_desc; font_desc = pango_font_description_from_string (fontname); gtk_font_button_take_font_desc (font_button, font_desc); } /** * gtk_font_button_set_font_name: * @font_button: a #GtkFontButton * @fontname: Name of font to display in font chooser dialog * * Sets or updates the currently-displayed font in font picker dialog. * * Returns: %TRUE * * Since: 2.4 * Deprecated: 3.22: Use gtk_font_chooser_set_font() instead */ gboolean gtk_font_button_set_font_name (GtkFontButton *font_button, const gchar *fontname) { g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), FALSE); g_return_val_if_fail (fontname != NULL, FALSE); font_button_set_font_name (font_button, fontname); return TRUE; } static void gtk_font_button_clicked (GtkButton *button) { GtkFontChooser *font_dialog; GtkFontButton *font_button = GTK_FONT_BUTTON (button); GtkFontButtonPrivate *priv = font_button->priv; if (!font_button->priv->font_dialog) { GtkWidget *parent; parent = gtk_widget_get_toplevel (GTK_WIDGET (font_button)); priv->font_dialog = gtk_font_chooser_dialog_new (priv->title, NULL); font_dialog = GTK_FONT_CHOOSER (font_button->priv->font_dialog); if (priv->font_map) gtk_font_chooser_set_font_map (font_dialog, priv->font_map); gtk_font_chooser_set_show_preview_entry (font_dialog, priv->show_preview_entry); if (priv->preview_text) { gtk_font_chooser_set_preview_text (font_dialog, priv->preview_text); g_free (priv->preview_text); priv->preview_text = NULL; } if (priv->font_filter) { gtk_font_chooser_set_filter_func (font_dialog, priv->font_filter, priv->font_filter_data, priv->font_filter_data_destroy); priv->font_filter = NULL; priv->font_filter_data = NULL; priv->font_filter_data_destroy = NULL; } if (gtk_widget_is_toplevel (parent) && GTK_IS_WINDOW (parent)) { if (GTK_WINDOW (parent) != gtk_window_get_transient_for (GTK_WINDOW (font_dialog))) gtk_window_set_transient_for (GTK_WINDOW (font_dialog), GTK_WINDOW (parent)); gtk_window_set_modal (GTK_WINDOW (font_dialog), gtk_window_get_modal (GTK_WINDOW (parent))); } g_signal_connect (font_dialog, "notify", G_CALLBACK (gtk_font_button_font_chooser_notify), button); g_signal_connect (font_dialog, "response", G_CALLBACK (response_cb), font_button); g_signal_connect (font_dialog, "destroy", G_CALLBACK (dialog_destroy), font_button); g_signal_connect (font_dialog, "delete-event", G_CALLBACK (gtk_widget_hide_on_delete), NULL); } if (!gtk_widget_get_visible (font_button->priv->font_dialog)) { font_dialog = GTK_FONT_CHOOSER (font_button->priv->font_dialog); gtk_font_chooser_set_font_desc (font_dialog, font_button->priv->font_desc); } gtk_window_present (GTK_WINDOW (font_button->priv->font_dialog)); } static void response_cb (GtkDialog *dialog, gint response_id, gpointer data) { GtkFontButton *font_button = GTK_FONT_BUTTON (data); GtkFontButtonPrivate *priv = font_button->priv; GtkFontChooser *font_chooser; GObject *object; gtk_widget_hide (font_button->priv->font_dialog); if (response_id != GTK_RESPONSE_OK) return; font_chooser = GTK_FONT_CHOOSER (priv->font_dialog); object = G_OBJECT (font_chooser); g_object_freeze_notify (object); clear_font_data (font_button); priv->font_desc = gtk_font_chooser_get_font_desc (font_chooser); if (priv->font_desc) priv->fontname = pango_font_description_to_string (priv->font_desc); priv->font_family = gtk_font_chooser_get_font_family (font_chooser); if (priv->font_family) g_object_ref (priv->font_family); priv->font_face = gtk_font_chooser_get_font_face (font_chooser); if (priv->font_face) g_object_ref (priv->font_face); priv->font_size = gtk_font_chooser_get_font_size (font_chooser); /* Set label font */ gtk_font_button_update_font_info (font_button); g_object_notify (G_OBJECT (font_button), "font"); g_object_notify (G_OBJECT (font_button), "font-desc"); g_object_notify (G_OBJECT (font_button), "font-name"); g_object_thaw_notify (object); /* Emit font_set signal */ g_signal_emit (font_button, font_button_signals[FONT_SET], 0); } static void dialog_destroy (GtkWidget *widget, gpointer data) { GtkFontButton *font_button = GTK_FONT_BUTTON (data); /* Dialog will get destroyed so reference is not valid now */ font_button->priv->font_dialog = NULL; } static gchar * pango_font_description_to_css (PangoFontDescription *desc) { GString *s; PangoFontMask set; s = g_string_new ("* { "); set = pango_font_description_get_set_fields (desc); if (set & PANGO_FONT_MASK_FAMILY) { g_string_append (s, "font-family: "); g_string_append (s, pango_font_description_get_family (desc)); g_string_append (s, "; "); } if (set & PANGO_FONT_MASK_STYLE) { switch (pango_font_description_get_style (desc)) { case PANGO_STYLE_NORMAL: g_string_append (s, "font-style: normal; "); break; case PANGO_STYLE_OBLIQUE: g_string_append (s, "font-style: oblique; "); break; case PANGO_STYLE_ITALIC: g_string_append (s, "font-style: italic; "); break; } } if (set & PANGO_FONT_MASK_VARIANT) { switch (pango_font_description_get_variant (desc)) { case PANGO_VARIANT_NORMAL: g_string_append (s, "font-variant: normal; "); break; case PANGO_VARIANT_SMALL_CAPS: g_string_append (s, "font-variant: small-caps; "); break; } } if (set & PANGO_FONT_MASK_WEIGHT) { switch (pango_font_description_get_weight (desc)) { case PANGO_WEIGHT_THIN: g_string_append (s, "font-weight: 100; "); break; case PANGO_WEIGHT_ULTRALIGHT: g_string_append (s, "font-weight: 200; "); break; case PANGO_WEIGHT_LIGHT: case PANGO_WEIGHT_SEMILIGHT: g_string_append (s, "font-weight: 300; "); break; case PANGO_WEIGHT_BOOK: case PANGO_WEIGHT_NORMAL: g_string_append (s, "font-weight: 400; "); break; case PANGO_WEIGHT_MEDIUM: g_string_append (s, "font-weight: 500; "); break; case PANGO_WEIGHT_SEMIBOLD: g_string_append (s, "font-weight: 600; "); break; case PANGO_WEIGHT_BOLD: g_string_append (s, "font-weight: 700; "); break; case PANGO_WEIGHT_ULTRABOLD: g_string_append (s, "font-weight: 800; "); break; case PANGO_WEIGHT_HEAVY: case PANGO_WEIGHT_ULTRAHEAVY: g_string_append (s, "font-weight: 900; "); break; } } if (set & PANGO_FONT_MASK_STRETCH) { switch (pango_font_description_get_stretch (desc)) { case PANGO_STRETCH_ULTRA_CONDENSED: g_string_append (s, "font-stretch: ultra-condensed; "); break; case PANGO_STRETCH_EXTRA_CONDENSED: g_string_append (s, "font-stretch: extra-condensed; "); break; case PANGO_STRETCH_CONDENSED: g_string_append (s, "font-stretch: condensed; "); break; case PANGO_STRETCH_SEMI_CONDENSED: g_string_append (s, "font-stretch: semi-condensed; "); break; case PANGO_STRETCH_NORMAL: g_string_append (s, "font-stretch: normal; "); break; case PANGO_STRETCH_SEMI_EXPANDED: g_string_append (s, "font-stretch: semi-expanded; "); break; case PANGO_STRETCH_EXPANDED: g_string_append (s, "font-stretch: expanded; "); break; case PANGO_STRETCH_EXTRA_EXPANDED: g_string_append (s, "font-stretch: extra-expanded; "); break; case PANGO_STRETCH_ULTRA_EXPANDED: g_string_append (s, "font-stretch: ultra-expanded; "); break; } } if (set & PANGO_FONT_MASK_SIZE) { g_string_append_printf (s, "font-size: %dpt", pango_font_description_get_size (desc) / PANGO_SCALE); } g_string_append (s, "}"); return g_string_free (s, FALSE); } static void gtk_font_button_label_use_font (GtkFontButton *font_button) { GtkFontButtonPrivate *priv = font_button->priv; GtkStyleContext *context; context = gtk_widget_get_style_context (priv->font_label); if (!priv->use_font) { if (priv->provider) { gtk_style_context_remove_provider (context, GTK_STYLE_PROVIDER (priv->provider)); g_clear_object (&priv->provider); } } else { PangoFontDescription *desc; gchar *data; if (!priv->provider) { priv->provider = gtk_css_provider_new (); gtk_style_context_add_provider (context, GTK_STYLE_PROVIDER (priv->provider), GTK_STYLE_PROVIDER_PRIORITY_APPLICATION); } desc = pango_font_description_copy (priv->font_desc); if (!priv->use_size) pango_font_description_unset_fields (desc, PANGO_FONT_MASK_SIZE); data = pango_font_description_to_css (desc); gtk_css_provider_load_from_data (priv->provider, data, -1, NULL); g_free (data); pango_font_description_free (desc); } } static void gtk_font_button_update_font_info (GtkFontButton *font_button) { GtkFontButtonPrivate *priv = font_button->priv; const gchar *fam_name; const gchar *face_name; gchar *family_style; if (priv->font_family) fam_name = pango_font_family_get_name (priv->font_family); else fam_name = C_("font", "None"); if (priv->font_face) face_name = pango_font_face_get_face_name (priv->font_face); else face_name = ""; if (priv->show_style) family_style = g_strconcat (fam_name, " ", face_name, NULL); else family_style = g_strdup (fam_name); gtk_label_set_text (GTK_LABEL (font_button->priv->font_label), family_style); g_free (family_style); if (font_button->priv->show_size) { /* mirror Pango, which doesn't translate this either */ gchar *size = g_strdup_printf ("%2.4g%s", pango_font_description_get_size (priv->font_desc) / (double)PANGO_SCALE, pango_font_description_get_size_is_absolute (priv->font_desc) ? "px" : ""); gtk_label_set_text (GTK_LABEL (font_button->priv->size_label), size); g_free (size); } gtk_font_button_label_use_font (font_button); }