1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 2011 Alberto Ruiz <aruiz@gnome.org>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
23 #include <glib/gprintf.h>
28 #include "gtkfontchooserwidget.h"
29 #include "gtkfontchooser.h"
30 #include "gtkfontchooserutils.h"
31 #include "gtkcellrenderertext.h"
37 #include "gtkliststore.h"
39 #include "gtktextview.h"
40 #include "gtktreeselection.h"
41 #include "gtktreeview.h"
42 #include "gtkscrolledwindow.h"
44 #include "gtkaccessible.h"
45 #include "gtkbuildable.h"
46 #include "gtkprivate.h"
48 #include "gtkspinbutton.h"
49 #include "gtknotebook.h"
50 #include "gtkwidget.h"
54 * SECTION:gtkfontchooser
55 * @Short_description: A widget for selecting fonts
56 * @Title: GtkFontChooserWidget
57 * @See_also: #GtkFontChooserDialog
59 * The #GtkFontChooserWidget widget lists the available fonts,
60 * styles and sizes, allowing the user to select a font. It is
61 * used in the #GtkFontChooserDialog widget to provide a
62 * dialog box for selecting fonts.
64 * To set the font which is initially selected, use
65 * gtk_font_chooser_set_font() or gtk_font_chooser_set_font_desc().
67 * To get the selected font use gtk_font_chooser_get_font() or
68 * gtk_font_chooser_get_font_desc().
70 * To change the text which is shown in the preview area, use
71 * gtk_font_chooser_set_preview_text().
77 struct _GtkFontChooserWidgetPrivate
79 GtkWidget *search_entry;
80 GtkWidget *family_face_list;
81 GtkWidget *list_scrolled_window;
82 GtkWidget *empty_list;
83 GtkWidget *list_notebook;
85 GtkTreeModel *filter_model;
89 gboolean show_preview_entry;
92 GtkWidget *size_slider;
94 PangoFontDescription *font_desc;
97 PangoFontFamily *family;
99 gulong cursor_changed_handler;
101 GtkFontFilterFunc filter_func;
102 gpointer filter_data;
103 GDestroyNotify filter_data_destroy;
106 /* This is the initial fixed height and the top padding of the preview entry */
107 #define PREVIEW_HEIGHT 72
108 #define PREVIEW_TOP_PADDING 6
110 /* These are the sizes of the font, style & size lists. */
111 #define FONT_LIST_HEIGHT 136
112 #define FONT_LIST_WIDTH 190
113 #define FONT_STYLE_LIST_WIDTH 170
114 #define FONT_SIZE_LIST_WIDTH 60
116 #define ROW_FORMAT_STRING "<span weight=\"bold\" size=\"small\">%s</span>\n<span size=\"x-large\" font_desc=\"%s\">%s</span>"
118 #define NO_FONT_MATCHED_SEARCH N_("No fonts matched your search. You can revise your search and try again.")
120 /* These are what we use as the standard font sizes, for the size list.
122 static const gint font_sizes[] = {
123 6, 8, 9, 10, 11, 12, 13, 14, 16, 20, 24, 36, 48, 72
133 static void gtk_font_chooser_widget_set_property (GObject *object,
137 static void gtk_font_chooser_widget_get_property (GObject *object,
141 static void gtk_font_chooser_widget_finalize (GObject *object);
142 static void gtk_font_chooser_widget_dispose (GObject *object);
144 static void gtk_font_chooser_widget_screen_changed (GtkWidget *widget,
145 GdkScreen *previous_screen);
146 static void gtk_font_chooser_widget_style_updated (GtkWidget *widget);
148 static void gtk_font_chooser_widget_bootstrap_fontlist (GtkFontChooserWidget *fontchooser);
150 static void gtk_font_chooser_widget_select_font (GtkFontChooserWidget *fontchooser);
152 static gchar *gtk_font_chooser_widget_get_font (GtkFontChooserWidget *fontchooser);
153 static void gtk_font_chooser_widget_set_font (GtkFontChooserWidget *fontchooser,
154 const gchar *fontname);
156 static PangoFontDescription *gtk_font_chooser_widget_get_font_desc (GtkFontChooserWidget *fontchooser);
157 static void gtk_font_chooser_widget_take_font_desc (GtkFontChooserWidget *fontchooser,
158 PangoFontDescription *font_desc);
161 static const gchar *gtk_font_chooser_widget_get_preview_text (GtkFontChooserWidget *fontchooser);
162 static void gtk_font_chooser_widget_set_preview_text (GtkFontChooserWidget *fontchooser,
165 static gboolean gtk_font_chooser_widget_get_show_preview_entry (GtkFontChooserWidget *fontchooser);
166 static void gtk_font_chooser_widget_set_show_preview_entry (GtkFontChooserWidget *fontchooser,
167 gboolean show_preview_entry);
169 static void gtk_font_chooser_widget_iface_init (GtkFontChooserIface *iface);
171 G_DEFINE_TYPE_WITH_CODE (GtkFontChooserWidget, gtk_font_chooser_widget, GTK_TYPE_BOX,
172 G_IMPLEMENT_INTERFACE (GTK_TYPE_FONT_CHOOSER,
173 gtk_font_chooser_widget_iface_init))
176 gtk_font_chooser_widget_class_init (GtkFontChooserWidgetClass *klass)
178 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
179 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
181 widget_class->screen_changed = gtk_font_chooser_widget_screen_changed;
182 widget_class->style_updated = gtk_font_chooser_widget_style_updated;
184 gobject_class->dispose = gtk_font_chooser_widget_dispose;
185 gobject_class->finalize = gtk_font_chooser_widget_finalize;
186 gobject_class->set_property = gtk_font_chooser_widget_set_property;
187 gobject_class->get_property = gtk_font_chooser_widget_get_property;
189 _gtk_font_chooser_install_properties (gobject_class);
191 g_type_class_add_private (klass, sizeof (GtkFontChooserWidgetPrivate));
195 gtk_font_chooser_widget_set_property (GObject *object,
200 GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (object);
204 case GTK_FONT_CHOOSER_PROP_FONT:
205 gtk_font_chooser_widget_set_font (fontchooser, g_value_get_string (value));
207 case GTK_FONT_CHOOSER_PROP_FONT_DESC:
208 gtk_font_chooser_widget_take_font_desc (fontchooser, g_value_dup_boxed (value));
210 case GTK_FONT_CHOOSER_PROP_PREVIEW_TEXT:
211 gtk_font_chooser_widget_set_preview_text (fontchooser, g_value_get_string (value));
213 case GTK_FONT_CHOOSER_PROP_SHOW_PREVIEW_ENTRY:
214 gtk_font_chooser_widget_set_show_preview_entry (fontchooser, g_value_get_boolean (value));
217 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
223 gtk_font_chooser_widget_get_property (GObject *object,
228 GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (object);
232 case GTK_FONT_CHOOSER_PROP_FONT:
233 g_value_take_string (value, gtk_font_chooser_widget_get_font (fontchooser));
235 case GTK_FONT_CHOOSER_PROP_FONT_DESC:
236 g_value_set_boxed (value, gtk_font_chooser_widget_get_font_desc (fontchooser));
238 case GTK_FONT_CHOOSER_PROP_PREVIEW_TEXT:
239 g_value_set_string (value, gtk_font_chooser_widget_get_preview_text (fontchooser));
241 case GTK_FONT_CHOOSER_PROP_SHOW_PREVIEW_ENTRY:
242 g_value_set_boolean (value, gtk_font_chooser_widget_get_show_preview_entry (fontchooser));
245 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
251 text_changed_cb (GtkEntry *entry,
253 GtkFontChooserWidget *fc)
255 GtkFontChooserWidgetPrivate *priv = fc->priv;
258 text = gtk_entry_get_text (entry);
260 if (text == NULL || text[0] == '\0')
264 icon = g_themed_icon_new_with_default_fallbacks ("edit-find-symbolic");
265 g_object_set (G_OBJECT (priv->search_entry),
266 "secondary-icon-gicon", icon,
267 "secondary-icon-activatable", FALSE,
268 "secondary-icon-sensitive", FALSE,
270 g_object_unref (icon);
274 if (!gtk_entry_get_icon_activatable (GTK_ENTRY (priv->search_entry), GTK_ENTRY_ICON_SECONDARY))
278 icon = g_themed_icon_new_with_default_fallbacks ("edit-clear-symbolic");
279 g_object_set (G_OBJECT (priv->search_entry),
280 "secondary-icon-gicon", icon,
281 "secondary-icon-activatable", TRUE,
282 "secondary-icon-sensitive", TRUE,
284 g_object_unref (icon);
288 gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (priv->filter_model));
292 icon_press_cb (GtkEntry *entry,
293 GtkEntryIconPosition pos,
297 gtk_entry_set_text (entry, "");
301 slider_change_cb (GtkAdjustment *adjustment,
304 GtkFontChooserWidget *fc = (GtkFontChooserWidget*)user_data;
305 GtkFontChooserWidgetPrivate *priv = fc->priv;
306 GtkAdjustment *spin_adj = gtk_spin_button_get_adjustment(GTK_SPIN_BUTTON (priv->size_spin));
307 gdouble slider_value = gtk_adjustment_get_value (adjustment);
308 gdouble spin_value = gtk_adjustment_get_value (spin_adj);
310 if (slider_value != spin_value)
311 gtk_adjustment_set_value (spin_adj,
312 gtk_adjustment_get_value (adjustment));
316 spin_change_cb (GtkAdjustment *adjustment,
319 PangoFontDescription *desc;
320 GtkFontChooserWidget *fontchooser = (GtkFontChooserWidget*)user_data;
321 GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
322 GtkAdjustment *slider_adj = gtk_range_get_adjustment (GTK_RANGE (priv->size_slider));
324 gdouble size = gtk_adjustment_get_value (adjustment);
325 priv->size = ((gint)size) * PANGO_SCALE;
327 desc = pango_context_get_font_description (gtk_widget_get_pango_context (priv->preview));
328 pango_font_description_set_size (desc, priv->size);
329 gtk_widget_override_font (priv->preview, desc);
331 g_object_notify (G_OBJECT (fontchooser), "font");
332 g_object_notify (G_OBJECT (fontchooser), "font-desc");
334 /* If the new value is lower than the lower bound of the slider, we set
335 * the slider adjustment to the lower bound value if it is not already set
337 if (size < gtk_adjustment_get_lower (slider_adj) &&
338 gtk_adjustment_get_value (slider_adj) != gtk_adjustment_get_lower (slider_adj))
339 gtk_adjustment_set_value (slider_adj, gtk_adjustment_get_lower (slider_adj));
341 /* If the new value is upper than the upper bound of the slider, we set
342 * the slider adjustment to the upper bound value if it is not already set
344 else if (size > gtk_adjustment_get_upper (slider_adj) &&
345 gtk_adjustment_get_value (slider_adj) != gtk_adjustment_get_upper (slider_adj))
346 gtk_adjustment_set_value (slider_adj, gtk_adjustment_get_upper (slider_adj));
348 /* If the new value is not already set on the slider we set it */
349 else if (size != gtk_adjustment_get_value (slider_adj))
350 gtk_adjustment_set_value (slider_adj, size);
352 gtk_widget_queue_draw (priv->preview);
356 set_range_marks (GtkFontChooserWidgetPrivate *priv,
357 GtkWidget *size_slider,
367 sizes = (gint*)font_sizes;
368 length = G_N_ELEMENTS (font_sizes);
371 gtk_scale_clear_marks (GTK_SCALE (size_slider));
373 adj = gtk_range_get_adjustment(GTK_RANGE (size_slider));
375 gtk_adjustment_set_lower (adj, (gdouble) sizes[0]);
376 gtk_adjustment_set_upper (adj, (gdouble) sizes[length-1]);
378 value = gtk_adjustment_get_value (adj);
379 if (value > (gdouble) sizes[length-1])
380 gtk_adjustment_set_value (adj, (gdouble) sizes[length-1]);
381 else if (value < (gdouble) sizes[0])
382 gtk_adjustment_set_value (adj, (gdouble) sizes[0]);
384 for (i = 0; i < length; i++)
385 gtk_scale_add_mark (GTK_SCALE (size_slider),
387 GTK_POS_BOTTOM, NULL);
391 row_activated_cb (GtkTreeView *view,
393 GtkTreeViewColumn *column,
396 GtkFontChooserWidget *fontchooser = user_data;
399 fontname = gtk_font_chooser_widget_get_font (fontchooser);
400 _gtk_font_chooser_font_activated (GTK_FONT_CHOOSER (fontchooser), fontname);
405 cursor_changed_cb (GtkTreeView *treeview,
408 GtkFontChooserWidget *fontchooser = (GtkFontChooserWidget*)user_data;
409 GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
411 PangoFontFamily *family;
413 PangoFontDescription *desc;
419 GtkTreePath *path = gtk_tree_path_new ();
421 gtk_tree_view_get_cursor (treeview, &path, NULL);
426 if (!gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->filter_model), &iter, path))
428 gtk_tree_path_free (path);
432 gtk_tree_model_get (GTK_TREE_MODEL (priv->filter_model), &iter,
434 FAMILY_COLUMN, &family,
437 gtk_tree_view_scroll_to_cell (treeview, path, NULL, FALSE, 0.5, 0.5);
439 gtk_tree_path_free (path);
442 if (face == NULL || family == NULL)
445 g_object_unref (face);
447 g_object_unref (family);
452 desc = pango_font_face_describe (face);
453 pango_font_description_set_size (desc, priv->size);
454 gtk_widget_override_font (priv->preview, desc);
456 pango_font_face_list_sizes (face, &sizes, &n_sizes);
457 /* It seems not many fonts actually have a sane set of sizes */
458 for (i = 0; i < n_sizes; i++)
459 sizes[i] = sizes[i] / PANGO_SCALE;
461 set_range_marks (priv, priv->size_slider, sizes, n_sizes);
464 g_object_unref (priv->family);
465 priv->family = family;
468 g_object_unref (priv->face);
472 pango_font_description_free (priv->font_desc);
473 priv->font_desc = desc;
475 g_object_notify (G_OBJECT (fontchooser), "font");
476 g_object_notify (G_OBJECT (fontchooser), "font-desc");
480 zoom_preview_cb (GtkWidget *scrolled_window,
481 GdkEventScroll *event,
484 GtkFontChooserWidget *fc = (GtkFontChooserWidget*)user_data;
485 GtkFontChooserWidgetPrivate *priv = fc->priv;
487 GtkAdjustment *adj = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->size_spin));
489 if (event->direction == GDK_SCROLL_UP || event->direction == GDK_SCROLL_RIGHT)
490 gtk_adjustment_set_value (adj,
491 gtk_adjustment_get_value (adj) +
492 gtk_adjustment_get_step_increment (adj));
493 else if (event->direction == GDK_SCROLL_DOWN || event->direction == GDK_SCROLL_LEFT)
494 gtk_adjustment_set_value (adj,
495 gtk_adjustment_get_value (adj) -
496 gtk_adjustment_get_step_increment (adj));
501 row_inserted_cb (GtkTreeModel *model,
506 GtkFontChooserWidget *fontchooser = (GtkFontChooserWidget*)user_data;
507 GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
509 gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->list_notebook), 0);
513 row_deleted_cb (GtkTreeModel *model,
517 GtkFontChooserWidget *fontchooser = (GtkFontChooserWidget*)user_data;
518 GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
520 if (gtk_tree_model_iter_n_children (model, NULL) == 0)
521 gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->list_notebook), 1);
525 gtk_font_chooser_widget_init (GtkFontChooserWidget *fontchooser)
528 GtkFontChooserWidgetPrivate *priv;
529 const PangoFontDescription *font_desc;
530 GtkWidget *scrolled_win;
533 fontchooser->priv = G_TYPE_INSTANCE_GET_PRIVATE (fontchooser,
534 GTK_TYPE_FONT_CHOOSER_WIDGET,
535 GtkFontChooserWidgetPrivate);
537 priv = fontchooser->priv;
539 /* Default preview string */
540 priv->preview_text = g_strdup (pango_language_get_sample_string (NULL));
541 priv->show_preview_entry = TRUE;
543 /* Getting the default size */
544 font_desc = pango_context_get_font_description (gtk_widget_get_pango_context (GTK_WIDGET (fontchooser)));
545 priv->size = pango_font_description_get_size (font_desc);
548 priv->font_desc = NULL;
550 gtk_widget_push_composite_child ();
552 /* Creating fundamental widgets for the private struct */
553 priv->search_entry = gtk_entry_new ();
554 priv->family_face_list = gtk_tree_view_new ();
555 priv->preview = gtk_entry_new ();
556 priv->size_slider = gtk_scale_new_with_range (GTK_ORIENTATION_HORIZONTAL,
557 (gdouble) font_sizes[0],
558 (gdouble) font_sizes[G_N_ELEMENTS (font_sizes) - 1],
561 priv->size_spin = gtk_spin_button_new_with_range (0.0, (gdouble)(G_MAXINT / PANGO_SCALE), 1.0);
563 /** Bootstrapping widget layout **/
564 gtk_box_set_spacing (GTK_BOX (fontchooser), 6);
566 /* Main font family/face view */
567 priv->list_scrolled_window = gtk_scrolled_window_new (NULL, NULL);
568 scrolled_win = priv->list_scrolled_window;
569 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
570 GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
571 gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_win),
572 GTK_SHADOW_ETCHED_IN);
573 gtk_widget_set_size_request (scrolled_win, 400, 300);
574 gtk_container_add (GTK_CONTAINER (scrolled_win), priv->family_face_list);
576 /* Text to display when list is empty */
577 priv->empty_list = gtk_label_new (_(NO_FONT_MATCHED_SEARCH));
578 gtk_widget_set_margin_top (priv->empty_list, 12);
579 gtk_widget_set_margin_left (priv->empty_list, 12);
580 gtk_widget_set_margin_right (priv->empty_list, 12);
581 gtk_widget_set_margin_bottom (priv->empty_list, 12);
582 gtk_widget_set_halign (priv->empty_list, GTK_ALIGN_CENTER);
583 gtk_widget_set_valign (priv->empty_list, GTK_ALIGN_START);
585 priv->list_notebook = gtk_notebook_new ();
586 gtk_notebook_set_show_tabs (GTK_NOTEBOOK (priv->list_notebook), FALSE);
587 gtk_notebook_append_page (GTK_NOTEBOOK (priv->list_notebook), scrolled_win, NULL);
588 gtk_notebook_append_page (GTK_NOTEBOOK (priv->list_notebook), priv->empty_list, NULL);
591 grid = gtk_grid_new ();
593 gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
594 gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
596 gtk_grid_attach (GTK_GRID (grid), priv->search_entry, 0, 0, 2, 1);
597 gtk_grid_attach (GTK_GRID (grid), priv->list_notebook, 0, 1, 2, 1);
598 gtk_grid_attach (GTK_GRID (grid), priv->preview, 0, 2, 2, 1);
600 gtk_grid_attach (GTK_GRID (grid), priv->size_slider, 0, 3, 1, 1);
601 gtk_grid_attach (GTK_GRID (grid), priv->size_spin, 1, 3, 1, 1);
603 gtk_widget_set_hexpand (GTK_WIDGET (scrolled_win), TRUE);
604 gtk_widget_set_vexpand (GTK_WIDGET (scrolled_win), TRUE);
605 gtk_widget_set_hexpand (GTK_WIDGET (priv->search_entry), TRUE);
607 gtk_widget_set_hexpand (GTK_WIDGET (priv->size_slider), TRUE);
608 gtk_widget_set_hexpand (GTK_WIDGET (priv->size_spin), FALSE);
610 gtk_box_pack_start (GTK_BOX (fontchooser), grid, TRUE, TRUE, 0);
612 /* Setting the adjustment values for the size slider */
613 gtk_adjustment_set_value (gtk_range_get_adjustment (GTK_RANGE (priv->size_slider)),
614 (gdouble)(priv->size / PANGO_SCALE));
615 gtk_adjustment_set_value (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->size_spin)),
616 (gdouble)(priv->size / PANGO_SCALE));
618 gtk_widget_show_all (GTK_WIDGET (fontchooser));
619 gtk_widget_hide (GTK_WIDGET (fontchooser));
621 /* Treeview column and model bootstrapping */
622 gtk_font_chooser_widget_bootstrap_fontlist (fontchooser);
624 /* Set default preview text */
625 gtk_entry_set_text (GTK_ENTRY (priv->preview),
626 pango_language_get_sample_string (NULL));
628 /* Set search icon and place holder text */
629 icon = g_themed_icon_new_with_default_fallbacks ("edit-find-symbolic");
630 g_object_set (G_OBJECT (priv->search_entry),
631 "secondary-icon-gicon", icon,
632 "secondary-icon-activatable", FALSE,
633 "secondary-icon-sensitive", FALSE,
635 g_object_unref (icon);
637 gtk_entry_set_placeholder_text (GTK_ENTRY (priv->search_entry), _("Search font name"));
639 /** Callback connections **/
640 g_signal_connect (priv->search_entry, "notify::text",
641 G_CALLBACK (text_changed_cb), fontchooser);
642 g_signal_connect (priv->search_entry,
643 "icon-press", G_CALLBACK (icon_press_cb), NULL);
645 g_signal_connect (gtk_range_get_adjustment (GTK_RANGE (priv->size_slider)),
646 "value-changed", G_CALLBACK (slider_change_cb), fontchooser);
647 g_signal_connect (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->size_spin)),
648 "value-changed", G_CALLBACK (spin_change_cb), fontchooser);
650 priv->cursor_changed_handler =
651 g_signal_connect (priv->family_face_list, "cursor-changed",
652 G_CALLBACK (cursor_changed_cb), fontchooser);
654 g_signal_connect (priv->family_face_list, "row-activated",
655 G_CALLBACK (row_activated_cb), fontchooser);
657 /* Zoom on preview scroll */
658 g_signal_connect (priv->preview, "scroll-event",
659 G_CALLBACK (zoom_preview_cb), fontchooser);
661 g_signal_connect (priv->size_slider, "scroll-event",
662 G_CALLBACK (zoom_preview_cb), fontchooser);
664 set_range_marks (priv, priv->size_slider, (gint*)font_sizes, G_N_ELEMENTS (font_sizes));
666 /* Font list empty hides the scrolledwindow */
667 g_signal_connect (G_OBJECT (priv->filter_model), "row-deleted",
668 G_CALLBACK (row_deleted_cb), fontchooser);
669 g_signal_connect (G_OBJECT (priv->filter_model), "row-inserted",
670 G_CALLBACK (row_inserted_cb), fontchooser);
672 /* Set default focus */
673 gtk_widget_pop_composite_child ();
675 gtk_font_chooser_widget_take_font_desc (fontchooser, NULL);
679 * gtk_font_chooser_widget_new:
681 * Creates a new #GtkFontChooserWidget.
683 * Return value: a new #GtkFontChooserWidget
688 gtk_font_chooser_widget_new (void)
690 return g_object_new (GTK_TYPE_FONT_CHOOSER_WIDGET, NULL);
694 cmp_families (const void *a,
697 const char *a_name = pango_font_family_get_name (*(PangoFontFamily **)a);
698 const char *b_name = pango_font_family_get_name (*(PangoFontFamily **)b);
700 return g_utf8_collate (a_name, b_name);
704 populate_list (GtkFontChooserWidget *fontchooser,
705 GtkTreeView *treeview,
708 GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
709 GtkStyleContext *style_context;
710 PangoFontDescription *default_font;
711 PangoFontDescription *selected_font;
714 GtkTreeIter match_row;
718 PangoFontFamily **families;
720 gchar *family_and_face;
722 if (!gtk_widget_has_screen (GTK_WIDGET (fontchooser)))
725 pango_context_list_families (gtk_widget_get_pango_context (GTK_WIDGET (treeview)),
729 qsort (families, n_families, sizeof (PangoFontFamily *), cmp_families);
731 style_context = gtk_widget_get_style_context (GTK_WIDGET (treeview));
732 default_font = (PangoFontDescription*) gtk_style_context_get_font (style_context,
736 selected_font = pango_font_face_describe (priv->face);
738 selected_font = NULL;
740 gtk_list_store_clear (model);
744 /* Iterate over families and faces */
745 for (i = 0; i < n_families; i++)
748 PangoFontFace **faces;
750 const gchar *fam_name = pango_font_family_get_name (families[i]);
752 pango_font_family_list_faces (families[i], &faces, &n_faces);
754 for (j = 0; j < n_faces; j++)
756 PangoFontDescription *pango_desc;
757 const gchar *face_name;
760 if (priv->filter_func != NULL &&
761 !priv->filter_func (families[i], faces[j], priv->filter_data))
764 pango_desc = pango_font_face_describe (faces[j]);
765 face_name = pango_font_face_get_face_name (faces[j]);
766 font_desc = pango_font_description_to_string (pango_desc);
768 family_and_face = g_strconcat (fam_name, " ", face_name, NULL);
769 tmp = g_markup_printf_escaped (ROW_FORMAT_STRING,
772 fontchooser->priv->preview_text);
774 gtk_list_store_append (model, &iter);
775 gtk_list_store_set (model, &iter,
776 FAMILY_COLUMN, families[i],
777 FACE_COLUMN, faces[j],
778 PREVIEW_TITLE_COLUMN, family_and_face,
779 PREVIEW_TEXT_COLUMN, tmp,
782 /* Select the current font,
783 * the default font/face from the theme,
787 selected_font != NULL &&
788 pango_font_description_equal (selected_font, pango_desc))
794 strcmp (fam_name, pango_font_description_get_family (default_font)) == 0)
805 pango_font_description_free (pango_desc);
806 g_free (family_and_face);
814 path = gtk_tree_model_get_path (GTK_TREE_MODEL (model), &match_row);
817 gtk_tree_view_set_cursor (treeview, path, NULL, FALSE);
818 gtk_tree_view_scroll_to_cell (treeview, path, NULL, FALSE, 0.5, 0.5);
819 gtk_tree_path_free (path);
823 pango_font_description_free (selected_font);
829 visible_func (GtkTreeModel *model,
833 gboolean result = TRUE;
834 GtkFontChooserWidgetPrivate *priv = (GtkFontChooserWidgetPrivate*)user_data;
836 const gchar *search_text = (const gchar*)gtk_entry_get_text (GTK_ENTRY (priv->search_entry));
842 /* If there's no filter string we show the item */
843 if (strlen (search_text) == 0)
846 gtk_tree_model_get (model, iter,
847 PREVIEW_TITLE_COLUMN, &font_name,
850 if (font_name == NULL)
853 split_terms = g_strsplit (search_text, " ", 0);
854 term = split_terms[0];
856 while (term && result)
858 gchar* font_name_casefold = g_utf8_casefold (font_name, -1);
859 gchar* term_casefold = g_utf8_casefold (term, -1);
861 if (g_strrstr (font_name_casefold, term_casefold))
862 result = result && TRUE;
867 term = split_terms[n_terms];
869 g_free (term_casefold);
870 g_free (font_name_casefold);
874 g_strfreev (split_terms);
880 gtk_font_chooser_widget_bootstrap_fontlist (GtkFontChooserWidget *fontchooser)
882 GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
883 GtkTreeView *treeview = GTK_TREE_VIEW (priv->family_face_list);
884 GtkCellRenderer *cell;
885 GtkTreeViewColumn *col;
887 priv->model = gtk_list_store_new (4,
888 PANGO_TYPE_FONT_FAMILY,
889 PANGO_TYPE_FONT_FACE,
893 priv->filter_model = gtk_tree_model_filter_new (GTK_TREE_MODEL (priv->model), NULL);
894 g_object_unref (priv->model);
896 gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (priv->filter_model),
897 visible_func, (gpointer)priv, NULL);
899 gtk_tree_view_set_model (treeview, GTK_TREE_MODEL (priv->filter_model));
900 g_object_unref (priv->filter_model);
902 gtk_tree_view_set_rules_hint (treeview, TRUE);
903 gtk_tree_view_set_headers_visible (treeview, FALSE);
905 cell = gtk_cell_renderer_text_new ();
906 col = gtk_tree_view_column_new_with_attributes (_("Font Family"),
908 "markup", PREVIEW_TEXT_COLUMN,
911 g_object_set (cell, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
913 gtk_tree_view_append_column (treeview, col);
915 populate_list (fontchooser, treeview, priv->model);
919 gtk_font_chooser_widget_dispose (GObject *object)
921 GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (object);
922 GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
924 if (priv->cursor_changed_handler != 0)
926 g_signal_handler_disconnect (priv->family_face_list,
927 priv->cursor_changed_handler);
928 priv->cursor_changed_handler = 0;
931 G_OBJECT_CLASS (gtk_font_chooser_widget_parent_class)->dispose (object);
935 gtk_font_chooser_widget_finalize (GObject *object)
937 GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (object);
938 GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
941 pango_font_description_free (priv->font_desc);
944 g_object_unref (priv->family);
947 g_object_unref (priv->face);
949 if (priv->filter_data_destroy)
950 priv->filter_data_destroy (priv->filter_data);
952 G_OBJECT_CLASS (gtk_font_chooser_widget_parent_class)->finalize (object);
956 gtk_font_chooser_widget_screen_changed (GtkWidget *widget,
957 GdkScreen *previous_screen)
959 GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (widget);
960 GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
961 void (* screen_changed) (GtkWidget *, GdkScreen *) =
962 GTK_WIDGET_CLASS (gtk_font_chooser_widget_parent_class)->screen_changed;
965 screen_changed (widget, previous_screen);
967 populate_list (fontchooser,
968 GTK_TREE_VIEW (priv->family_face_list),
971 gtk_font_chooser_widget_select_font (fontchooser);
975 gtk_font_chooser_widget_style_updated (GtkWidget *widget)
977 GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (widget);
979 GTK_WIDGET_CLASS (gtk_font_chooser_widget_parent_class)->style_updated (widget);
981 populate_list (fontchooser,
982 GTK_TREE_VIEW (fontchooser->priv->family_face_list),
983 fontchooser->priv->model);
986 static PangoFontFamily *
987 gtk_font_chooser_widget_get_family (GtkFontChooser *chooser)
989 GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
991 return fontchooser->priv->family;
994 static PangoFontFace *
995 gtk_font_chooser_widget_get_face (GtkFontChooser *chooser)
997 GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
999 return fontchooser->priv->face;
1003 gtk_font_chooser_widget_get_size (GtkFontChooser *chooser)
1005 GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
1007 return fontchooser->priv->size;
1011 gtk_font_chooser_widget_get_font (GtkFontChooserWidget *fontchooser)
1013 return pango_font_description_to_string (fontchooser->priv->font_desc);
1016 static PangoFontDescription *
1017 gtk_font_chooser_widget_get_font_desc (GtkFontChooserWidget *fontchooser)
1019 return fontchooser->priv->font_desc;
1023 gtk_font_chooser_widget_set_font (GtkFontChooserWidget *fontchooser,
1024 const gchar *fontname)
1026 PangoFontDescription *font_desc;
1028 font_desc = pango_font_description_from_string (fontname);
1029 gtk_font_chooser_widget_take_font_desc (fontchooser, font_desc);
1033 gtk_font_chooser_widget_take_font_desc (GtkFontChooserWidget *fontchooser,
1034 PangoFontDescription *font_desc)
1036 GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
1038 if (font_desc && priv->font_desc &&
1039 pango_font_description_equal (font_desc, priv->font_desc))
1041 pango_font_description_free (font_desc);
1045 if (priv->font_desc)
1046 pango_font_description_free (priv->font_desc);
1048 priv->font_desc = font_desc; /* adopted */
1050 priv->font_desc = pango_font_description_from_string (GTK_FONT_CHOOSER_DEFAULT_FONT_NAME);
1052 gtk_font_chooser_widget_select_font (fontchooser);
1056 gtk_font_chooser_widget_select_font (GtkFontChooserWidget *fontchooser)
1058 GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
1059 const PangoFontDescription *desc;
1060 const gchar *family_name;
1062 gboolean font_size_is_absolute;
1065 gboolean found = FALSE;
1067 desc = priv->font_desc;
1068 g_assert (desc != NULL);
1070 font_size = pango_font_description_get_size (desc);
1071 font_size_is_absolute = pango_font_description_get_size_is_absolute (desc);
1072 family_name = pango_font_description_get_family (desc);
1074 /* We make sure the filter is clear */
1075 gtk_entry_set_text (GTK_ENTRY (priv->search_entry), "");
1080 /* We find the matching family/face */
1081 for (valid = gtk_tree_model_get_iter_first (GTK_TREE_MODEL (priv->filter_model), &iter);
1083 valid = gtk_tree_model_iter_next (GTK_TREE_MODEL (priv->filter_model), &iter))
1085 PangoFontFace *face;
1086 PangoFontDescription *tmp_desc;
1088 gtk_tree_model_get (GTK_TREE_MODEL (priv->filter_model), &iter,
1092 tmp_desc = pango_font_face_describe (face);
1093 if (font_size_is_absolute)
1094 pango_font_description_set_absolute_size (tmp_desc, font_size);
1096 pango_font_description_set_size (tmp_desc, font_size);
1098 if (pango_font_description_equal (desc, tmp_desc))
1104 if (font_size_is_absolute)
1105 font_size *= PANGO_SCALE;
1106 gtk_spin_button_set_value (GTK_SPIN_BUTTON (priv->size_spin),
1107 font_size / PANGO_SCALE);
1110 path = gtk_tree_model_get_path (GTK_TREE_MODEL (priv->filter_model), &iter);
1114 gtk_tree_view_set_cursor (GTK_TREE_VIEW (priv->family_face_list),
1118 gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (priv->family_face_list),
1124 gtk_tree_path_free (path);
1130 g_object_unref (face);
1131 pango_font_description_free (tmp_desc);
1140 gtk_tree_selection_unselect_all
1141 (gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->family_face_list)));
1146 gtk_font_chooser_widget_get_preview_text (GtkFontChooserWidget *fontchooser)
1148 return fontchooser->priv->preview_text;
1152 gtk_font_chooser_widget_set_preview_text (GtkFontChooserWidget *fontchooser,
1155 g_free (fontchooser->priv->preview_text);
1156 fontchooser->priv->preview_text = g_strdup (text);
1158 populate_list (fontchooser,
1159 GTK_TREE_VIEW (fontchooser->priv->family_face_list),
1160 fontchooser->priv->model);
1162 gtk_entry_set_text (GTK_ENTRY (fontchooser->priv->preview), text);
1164 g_object_notify (G_OBJECT (fontchooser), "preview-text");
1168 gtk_font_chooser_widget_get_show_preview_entry (GtkFontChooserWidget *fontchooser)
1170 return fontchooser->priv->show_preview_entry;
1174 gtk_font_chooser_widget_set_show_preview_entry (GtkFontChooserWidget *fontchooser,
1175 gboolean show_preview_entry)
1177 GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
1179 if (priv->show_preview_entry != show_preview_entry)
1181 fontchooser->priv->show_preview_entry = show_preview_entry;
1183 if (show_preview_entry)
1184 gtk_widget_show (fontchooser->priv->preview);
1186 gtk_widget_hide (fontchooser->priv->preview);
1188 g_object_notify (G_OBJECT (fontchooser), "show-preview-entry");
1193 gtk_font_chooser_widget_set_filter_func (GtkFontChooser *chooser,
1194 GtkFontFilterFunc filter,
1196 GDestroyNotify destroy)
1198 GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
1199 GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
1201 if (priv->filter_data_destroy)
1202 priv->filter_data_destroy (priv->filter_data);
1204 priv->filter_func = filter;
1205 priv->filter_data = data;
1206 priv->filter_data_destroy = destroy;
1208 populate_list (fontchooser,
1209 GTK_TREE_VIEW (priv->family_face_list),
1214 gtk_font_chooser_widget_iface_init (GtkFontChooserIface *iface)
1216 iface->get_font_family = gtk_font_chooser_widget_get_family;
1217 iface->get_font_face = gtk_font_chooser_widget_get_face;
1218 iface->get_font_size = gtk_font_chooser_widget_get_size;
1219 iface->set_filter_func = gtk_font_chooser_widget_set_filter_func;