/* * GTK - The GIMP Toolkit * Copyright (C) 1998 David Abilleira Freijeiro <odaf@nexo.es> * All rights reserved. * * Based on gnome-color-picker by Federico Mena <federico@nuclecu.unam.mx> * * 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, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Cambridge, MA 02139, USA. */ /* * 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 "gtkalignment.h" #include "gtkhbox.h" #include "gtklabel.h" #include "gtkvseparator.h" #include "gtkfontsel.h" #include "gtkimage.h" #include "gtkmarshalers.h" #include "gtkprivate.h" #include "gtkintl.h" #include "gtkalias.h" #include <string.h> #include <stdio.h> #define GTK_FONT_BUTTON_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_FONT_BUTTON, GtkFontButtonPrivate)) struct _GtkFontButtonPrivate { gchar *title; gchar *fontname; guint use_font : 1; guint use_size : 1; guint show_style : 1; guint show_size : 1; GtkWidget *font_dialog; GtkWidget *inside; GtkWidget *font_label; GtkWidget *size_label; }; /* 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 dialog_ok_clicked (GtkWidget *widget, gpointer data); static void dialog_cancel_clicked (GtkWidget *widget, gpointer data); static void dialog_destroy (GtkWidget *widget, gpointer data); /* Auxiliary functions */ static GtkWidget *gtk_font_button_create_inside (GtkFontButton *gfs); static void gtk_font_button_label_use_font (GtkFontButton *gfs); static void gtk_font_button_update_font_info (GtkFontButton *gfs); static guint font_button_signals[LAST_SIGNAL] = { 0 }; G_DEFINE_TYPE (GtkFontButton, gtk_font_button, GTK_TYPE_BUTTON) static void gtk_font_button_class_init (GtkFontButtonClass *klass) { GObjectClass *gobject_class; GtkButtonClass *button_class; gobject_class = (GObjectClass *) 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; /** * GtkFontButton:title: * * The title of the font selection 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 selection dialog"), _("Pick a Font"), (GTK_PARAM_READABLE | GTK_PARAM_WRITABLE))); /** * GtkFontButton:font-name: * * The name of the currently selected font. * * Since: 2.4 */ 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"), P_("Sans 12"), (GTK_PARAM_READABLE | GTK_PARAM_WRITABLE))); /** * 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)); /** * 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)); /** * 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)); /** * 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)); /** * 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 <emphasis>user</emphasis> * changes the font. If you need to react to programmatic font changes * as well, use the notify::font-name 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); g_type_class_add_private (gobject_class, sizeof (GtkFontButtonPrivate)); } static void gtk_font_button_init (GtkFontButton *font_button) { font_button->priv = GTK_FONT_BUTTON_GET_PRIVATE (font_button); /* Initialize fields */ font_button->priv->fontname = g_strdup (_("Sans 12")); 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->font_dialog = NULL; font_button->priv->title = g_strdup (_("Pick a Font")); font_button->priv->inside = gtk_font_button_create_inside (font_button); gtk_container_add (GTK_CONTAINER (font_button), font_button->priv->inside); gtk_font_button_update_font_info (font_button); } static void gtk_font_button_finalize (GObject *object) { GtkFontButton *font_button = GTK_FONT_BUTTON (object); if (font_button->priv->font_dialog != NULL) gtk_widget_destroy (font_button->priv->font_dialog); font_button->priv->font_dialog = NULL; g_free (font_button->priv->fontname); font_button->priv->fontname = NULL; g_free (font_button->priv->title); font_button->priv->title = NULL; 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 PROP_TITLE: gtk_font_button_set_title (font_button, g_value_get_string (value)); break; case PROP_FONT_NAME: gtk_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 PROP_TITLE: g_value_set_string (value, gtk_font_button_get_title (font_button)); break; case PROP_FONT_NAME: g_value_set_string (value, gtk_font_button_get_font_name (font_button)); 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 selection 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-name", fontname, NULL); } /** * gtk_font_button_set_title: * @font_button: a #GtkFontButton * @title: a string containing the font selection dialog title * * Sets the title for the font selection 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 selection dialog. * * Returns: an internal copy of the title string which must not be freed. * * Since: 2.4 */ G_CONST_RETURN 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; if (use_font) gtk_font_button_label_use_font (font_button); else gtk_widget_set_style (font_button->priv->font_label, NULL); 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; if (font_button->priv->use_font) 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. * * Return value: 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. * * Return value: 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; gtk_container_remove (GTK_CONTAINER (font_button), font_button->priv->inside); font_button->priv->inside = gtk_font_button_create_inside (font_button); gtk_container_add (GTK_CONTAINER (font_button), font_button->priv->inside); 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 */ G_CONST_RETURN 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; } /** * gtk_font_button_set_font_name: * @font_button: a #GtkFontButton * @fontname: Name of font to display in font selection dialog * * Sets or updates the currently-displayed font in font picker dialog. * * Returns: Return value of gtk_font_selection_dialog_set_font_name() if the * font selection dialog exists, otherwise %FALSE. * * Since: 2.4 */ gboolean gtk_font_button_set_font_name (GtkFontButton *font_button, const gchar *fontname) { gboolean result; gchar *old_fontname; g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), FALSE); g_return_val_if_fail (fontname != NULL, FALSE); if (g_ascii_strcasecmp (font_button->priv->fontname, fontname)) { old_fontname = font_button->priv->fontname; font_button->priv->fontname = g_strdup (fontname); g_free (old_fontname); } gtk_font_button_update_font_info (font_button); if (font_button->priv->font_dialog) result = gtk_font_selection_dialog_set_font_name (GTK_FONT_SELECTION_DIALOG (font_button->priv->font_dialog), font_button->priv->fontname); else result = FALSE; g_object_notify (G_OBJECT (font_button), "font-name"); return result; } static void gtk_font_button_clicked (GtkButton *button) { GtkFontSelectionDialog *font_dialog; GtkFontButton *font_button = GTK_FONT_BUTTON (button); if (!font_button->priv->font_dialog) { GtkWidget *parent; parent = gtk_widget_get_toplevel (GTK_WIDGET (font_button)); font_button->priv->font_dialog = gtk_font_selection_dialog_new (font_button->priv->title); font_dialog = GTK_FONT_SELECTION_DIALOG (font_button->priv->font_dialog); 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->ok_button, "clicked", G_CALLBACK (dialog_ok_clicked), font_button); g_signal_connect (font_dialog->cancel_button, "clicked", G_CALLBACK (dialog_cancel_clicked), font_button); g_signal_connect (font_dialog, "destroy", G_CALLBACK (dialog_destroy), font_button); } if (!gtk_widget_get_visible (font_button->priv->font_dialog)) { font_dialog = GTK_FONT_SELECTION_DIALOG (font_button->priv->font_dialog); gtk_font_selection_dialog_set_font_name (font_dialog, font_button->priv->fontname); } gtk_window_present (GTK_WINDOW (font_button->priv->font_dialog)); } static void dialog_ok_clicked (GtkWidget *widget, gpointer data) { GtkFontButton *font_button = GTK_FONT_BUTTON (data); gtk_widget_hide (font_button->priv->font_dialog); g_free (font_button->priv->fontname); font_button->priv->fontname = gtk_font_selection_dialog_get_font_name (GTK_FONT_SELECTION_DIALOG (font_button->priv->font_dialog)); /* Set label font */ gtk_font_button_update_font_info (font_button); g_object_notify (G_OBJECT (font_button), "font-name"); /* Emit font_set signal */ g_signal_emit (font_button, font_button_signals[FONT_SET], 0); } static void dialog_cancel_clicked (GtkWidget *widget, gpointer data) { GtkFontButton *font_button = GTK_FONT_BUTTON (data); gtk_widget_hide (font_button->priv->font_dialog); } 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 GtkWidget * gtk_font_button_create_inside (GtkFontButton *font_button) { GtkWidget *widget; gtk_widget_push_composite_child (); widget = gtk_hbox_new (FALSE, 0); font_button->priv->font_label = gtk_label_new (_("Font")); gtk_label_set_justify (GTK_LABEL (font_button->priv->font_label), GTK_JUSTIFY_LEFT); gtk_box_pack_start (GTK_BOX (widget), font_button->priv->font_label, TRUE, TRUE, 5); if (font_button->priv->show_size) { gtk_box_pack_start (GTK_BOX (widget), gtk_vseparator_new (), FALSE, FALSE, 0); font_button->priv->size_label = gtk_label_new ("14"); gtk_box_pack_start (GTK_BOX (widget), font_button->priv->size_label, FALSE, FALSE, 5); } gtk_widget_show_all (widget); gtk_widget_pop_composite_child (); return widget; } static void gtk_font_button_label_use_font (GtkFontButton *font_button) { PangoFontDescription *desc; if (!font_button->priv->use_font) return; desc = pango_font_description_from_string (font_button->priv->fontname); if (!font_button->priv->use_size) pango_font_description_unset_fields (desc, PANGO_FONT_MASK_SIZE); gtk_widget_modify_font (font_button->priv->font_label, desc); pango_font_description_free (desc); } 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_info (GtkFontButton *font_button) { PangoFontDescription *desc; const gchar *family; gchar *style; gchar *family_style; desc = pango_font_description_from_string (font_button->priv->fontname); family = pango_font_description_get_family (desc); #if 0 /* This gives the wrong names, e.g. Italic when the font selection * dialog displayed Oblique. */ pango_font_description_unset_fields (desc, PANGO_FONT_MASK_FAMILY | PANGO_FONT_MASK_SIZE); style = pango_font_description_to_string (desc); gtk_label_set_text (GTK_LABEL (font_button->priv->style_label), style); #endif style = NULL; if (font_button->priv->show_style && family) { PangoFontFamily **families; PangoFontFace **faces; gint n_families, n_faces, i; 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)) { 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, desc)) { style = g_strdup (pango_font_face_get_face_name (faces[i])); pango_font_description_free (tmp_desc); break; } else pango_font_description_free (tmp_desc); } g_free (faces); } if (style == NULL || !g_ascii_strcasecmp (style, "Regular")) family_style = g_strdup (family); else family_style = g_strdup_printf ("%s %s", family, style); gtk_label_set_text (GTK_LABEL (font_button->priv->font_label), family_style); g_free (style); g_free (family_style); if (font_button->priv->show_size) { gchar *size = g_strdup_printf ("%g", pango_font_description_get_size (desc) / (double)PANGO_SCALE); gtk_label_set_text (GTK_LABEL (font_button->priv->size_label), size); g_free (size); } gtk_font_button_label_use_font (font_button); pango_font_description_free (desc); } #define __GTK_FONT_BUTTON_C__ #include "gtkaliasdef.c"