Pileus Git - ~andy/gtk/blob - gtk/gtkfontchooserwidget.c

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 2011 Alberto Ruiz <aruiz@gnome.org>
   3  *
   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.
   8  *
   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.
  13  *
  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.
  18  */
  19
  20 #include "config.h"
  21
  22 #include <stdlib.h>
  23 #include <glib/gprintf.h>
  24 #include <string.h>
  25
  26 #include <atk/atk.h>
  27
  28 #include "gtkfontchooserwidget.h"
  29 #include "gtkfontchooser.h"
  30 #include "gtkfontchooserutils.h"
  31 #include "gtkcellrenderertext.h"
  32 #include "gtkentry.h"
  33 #include "gtkframe.h"
  34 #include "gtkbbox.h"
  35 #include "gtkbox.h"
  36 #include "gtklabel.h"
  37 #include "gtkliststore.h"
  38 #include "gtkstock.h"
  39 #include "gtktextview.h"
  40 #include "gtktreeselection.h"
  41 #include "gtktreeview.h"
  42 #include "gtkscrolledwindow.h"
  43 #include "gtkintl.h"
  44 #include "gtkaccessible.h"
  45 #include "gtkbuildable.h"
  46 #include "gtkprivate.h"
  47 #include "gtkscale.h"
  48 #include "gtkspinbutton.h"
  49 #include "gtknotebook.h"
  50 #include "gtkwidget.h"
  51 #include "gtkgrid.h"
  52
  53 /**
  54  * SECTION:gtkfontchooser
  55  * @Short_description: A widget for selecting fonts
  56  * @Title: GtkFontChooserWidget
  57  * @See_also: #GtkFontChooserDialog
  58  *
  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.
  63  *
  64  * To set the font which is initially selected, use
  65  * gtk_font_chooser_set_font() or gtk_font_chooser_set_font_desc().
  66  *
  67  * To get the selected font use gtk_font_chooser_get_font() or
  68  * gtk_font_chooser_get_font_desc().
  69  *
  70  * To change the text which is shown in the preview area, use
  71  * gtk_font_chooser_set_preview_text().
  72  *
  73  * Since: 3.2
  74  */
  75
  76
  77 struct _GtkFontChooserWidgetPrivate
  78 {
  79   GtkWidget    *search_entry;
  80   GtkWidget    *family_face_list;
  81   GtkWidget    *list_scrolled_window;
  82   GtkWidget    *empty_list;
  83   GtkWidget    *list_notebook;
  84   GtkListStore *model;
  85   GtkTreeModel *filter_model;
  86
  87   GtkWidget       *preview;
  88   gchar           *preview_text;
  89   gboolean         show_preview_entry;
  90
  91   GtkWidget *size_spin;
  92   GtkWidget *size_slider;
  93
  94   PangoFontDescription *font_desc;
  95   gint             size;
  96   PangoFontFace   *face;
  97   PangoFontFamily *family;
  98
  99   gulong           cursor_changed_handler;
 100
 101   GtkFontFilterFunc filter_func;
 102   gpointer          filter_data;
 103   GDestroyNotify    filter_data_destroy;
 104 };
 105
 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
 109
 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
 115
 116 #define ROW_FORMAT_STRING "<span weight=\"bold\" size=\"small\">%s</span>\n<span size=\"x-large\" font_desc=\"%s\">%s</span>"
 117
 118 #define NO_FONT_MATCHED_SEARCH N_("No fonts matched your search. You can revise your search and try again.")
 119
 120 /* These are what we use as the standard font sizes, for the size list.
 121  */
 122 static const gint font_sizes[] = {
 123   6, 8, 9, 10, 11, 12, 13, 14, 16, 20, 24, 36, 48, 72
 124 };
 125
 126 enum {
 127   FAMILY_COLUMN,
 128   FACE_COLUMN,
 129   PREVIEW_TEXT_COLUMN,
 130   PREVIEW_TITLE_COLUMN
 131 };
 132
 133 static void gtk_font_chooser_widget_set_property         (GObject         *object,
 134                                                           guint            prop_id,
 135                                                           const GValue    *value,
 136                                                           GParamSpec      *pspec);
 137 static void gtk_font_chooser_widget_get_property         (GObject         *object,
 138                                                           guint            prop_id,
 139                                                           GValue          *value,
 140                                                           GParamSpec      *pspec);
 141 static void gtk_font_chooser_widget_finalize             (GObject         *object);
 142 static void gtk_font_chooser_widget_dispose              (GObject         *object);
 143
 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);
 147
 148 static void gtk_font_chooser_widget_bootstrap_fontlist   (GtkFontChooserWidget *fontchooser);
 149
 150 static void gtk_font_chooser_widget_select_font          (GtkFontChooserWidget *fontchooser);
 151
 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);
 155
 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);
 159
 160
 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,
 163                                                               const gchar          *text);
 164
 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);
 168
 169 static void gtk_font_chooser_widget_iface_init (GtkFontChooserIface *iface);
 170
 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))
 174
 175 static void
 176 gtk_font_chooser_widget_class_init (GtkFontChooserWidgetClass *klass)
 177 {
 178   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 179   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 180
 181   widget_class->screen_changed = gtk_font_chooser_widget_screen_changed;
 182   widget_class->style_updated = gtk_font_chooser_widget_style_updated;
 183
 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;
 188
 189   _gtk_font_chooser_install_properties (gobject_class);
 190
 191   g_type_class_add_private (klass, sizeof (GtkFontChooserWidgetPrivate));
 192 }
 193
 194 static void
 195 gtk_font_chooser_widget_set_property (GObject         *object,
 196                                       guint            prop_id,
 197                                       const GValue    *value,
 198                                       GParamSpec      *pspec)
 199 {
 200   GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (object);
 201
 202   switch (prop_id)
 203     {
 204     case GTK_FONT_CHOOSER_PROP_FONT:
 205       gtk_font_chooser_widget_set_font (fontchooser, g_value_get_string (value));
 206       break;
 207     case GTK_FONT_CHOOSER_PROP_FONT_DESC:
 208       gtk_font_chooser_widget_take_font_desc (fontchooser, g_value_dup_boxed (value));
 209       break;
 210     case GTK_FONT_CHOOSER_PROP_PREVIEW_TEXT:
 211       gtk_font_chooser_widget_set_preview_text (fontchooser, g_value_get_string (value));
 212       break;
 213     case GTK_FONT_CHOOSER_PROP_SHOW_PREVIEW_ENTRY:
 214       gtk_font_chooser_widget_set_show_preview_entry (fontchooser, g_value_get_boolean (value));
 215       break;
 216     default:
 217       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 218       break;
 219     }
 220 }
 221
 222 static void
 223 gtk_font_chooser_widget_get_property (GObject         *object,
 224                                       guint            prop_id,
 225                                       GValue          *value,
 226                                       GParamSpec      *pspec)
 227 {
 228   GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (object);
 229
 230   switch (prop_id)
 231     {
 232     case GTK_FONT_CHOOSER_PROP_FONT:
 233       g_value_take_string (value, gtk_font_chooser_widget_get_font (fontchooser));
 234       break;
 235     case GTK_FONT_CHOOSER_PROP_FONT_DESC:
 236       g_value_set_boxed (value, gtk_font_chooser_widget_get_font_desc (fontchooser));
 237       break;
 238     case GTK_FONT_CHOOSER_PROP_PREVIEW_TEXT:
 239       g_value_set_string (value, gtk_font_chooser_widget_get_preview_text (fontchooser));
 240       break;
 241     case GTK_FONT_CHOOSER_PROP_SHOW_PREVIEW_ENTRY:
 242       g_value_set_boolean (value, gtk_font_chooser_widget_get_show_preview_entry (fontchooser));
 243       break;
 244     default:
 245       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 246       break;
 247     }
 248 }
 249
 250 static void
 251 text_changed_cb (GtkEntry       *entry,
 252                  GParamSpec     *pspec,
 253                  GtkFontChooserWidget *fc)
 254 {
 255   GtkFontChooserWidgetPrivate *priv = fc->priv;
 256   const gchar *text;
 257
 258   text = gtk_entry_get_text (entry);
 259
 260   if (text == NULL || text[0] == '\0')
 261     {
 262       GIcon *icon;
 263
 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,
 269                     NULL);
 270       g_object_unref (icon);
 271     }
 272   else
 273     {
 274       if (!gtk_entry_get_icon_activatable (GTK_ENTRY (priv->search_entry), GTK_ENTRY_ICON_SECONDARY))
 275         {
 276           GIcon *icon;
 277
 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,
 283                         NULL);
 284           g_object_unref (icon);
 285         }
 286     }
 287
 288   gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (priv->filter_model));
 289 }
 290
 291 static void
 292 icon_press_cb (GtkEntry             *entry,
 293                GtkEntryIconPosition  pos,
 294                GdkEvent             *event,
 295                gpointer              user_data)
 296 {
 297   gtk_entry_set_text (entry, "");
 298 }
 299
 300 static void
 301 slider_change_cb (GtkAdjustment *adjustment,
 302                   gpointer       user_data)
 303 {
 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);
 309
 310   if (slider_value != spin_value)
 311     gtk_adjustment_set_value (spin_adj,
 312                               gtk_adjustment_get_value (adjustment));
 313 }
 314
 315 static void
 316 spin_change_cb (GtkAdjustment *adjustment,
 317                 gpointer       user_data)
 318 {
 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));
 323   gdouble size = gtk_adjustment_get_value (adjustment);
 324
 325   priv->size = ((gint)size) * PANGO_SCALE;
 326
 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);
 330
 331   if (pango_font_description_get_size_is_absolute (priv->font_desc))
 332     pango_font_description_set_absolute_size (priv->font_desc, size);
 333   else
 334     pango_font_description_set_size (priv->font_desc, priv->size);
 335
 336   /* If the new value is lower than the lower bound of the slider, we set
 337    * the slider adjustment to the lower bound value if it is not already set
 338    */
 339   if (size < gtk_adjustment_get_lower (slider_adj) &&
 340       gtk_adjustment_get_value (slider_adj) != gtk_adjustment_get_lower (slider_adj))
 341     gtk_adjustment_set_value (slider_adj, gtk_adjustment_get_lower (slider_adj));
 342
 343   /* If the new value is upper than the upper bound of the slider, we set
 344    * the slider adjustment to the upper bound value if it is not already set
 345    */
 346   else if (size > gtk_adjustment_get_upper (slider_adj) &&
 347            gtk_adjustment_get_value (slider_adj) != gtk_adjustment_get_upper (slider_adj))
 348     gtk_adjustment_set_value (slider_adj, gtk_adjustment_get_upper (slider_adj));
 349
 350   /* If the new value is not already set on the slider we set it */
 351   else if (size != gtk_adjustment_get_value (slider_adj))
 352     gtk_adjustment_set_value (slider_adj, size);
 353
 354   gtk_widget_queue_draw (priv->preview);
 355
 356   g_object_notify (G_OBJECT (fontchooser), "font");
 357   g_object_notify (G_OBJECT (fontchooser), "font-desc");
 358 }
 359
 360 static void
 361 set_range_marks (GtkFontChooserWidgetPrivate *priv,
 362                  GtkWidget             *size_slider,
 363                  gint                  *sizes,
 364                  gint                   length)
 365 {
 366   GtkAdjustment *adj;
 367   gint i;
 368   gdouble value;
 369
 370   if (length < 2)
 371     {
 372       sizes = (gint*)font_sizes;
 373       length = G_N_ELEMENTS (font_sizes);
 374     }
 375
 376   gtk_scale_clear_marks (GTK_SCALE (size_slider));
 377
 378   adj = gtk_range_get_adjustment(GTK_RANGE (size_slider));
 379
 380   gtk_adjustment_set_lower (adj, (gdouble) sizes[0]);
 381   gtk_adjustment_set_upper (adj, (gdouble) sizes[length-1]);
 382
 383   value = gtk_adjustment_get_value (adj);
 384   if (value > (gdouble) sizes[length-1])
 385     gtk_adjustment_set_value (adj, (gdouble) sizes[length-1]);
 386   else if (value < (gdouble) sizes[0])
 387     gtk_adjustment_set_value (adj, (gdouble) sizes[0]);
 388
 389   for (i = 0; i < length; i++)
 390     gtk_scale_add_mark (GTK_SCALE (size_slider),
 391                         (gdouble) sizes[i],
 392                         GTK_POS_BOTTOM, NULL);
 393 }
 394
 395 static void
 396 row_activated_cb (GtkTreeView       *view,
 397                   GtkTreePath       *path,
 398                   GtkTreeViewColumn *column,
 399                   gpointer           user_data)
 400 {
 401   GtkFontChooserWidget *fontchooser = user_data;
 402   gchar *fontname;
 403
 404   fontname = gtk_font_chooser_widget_get_font (fontchooser);
 405   _gtk_font_chooser_font_activated (GTK_FONT_CHOOSER (fontchooser), fontname);
 406   g_free (fontname);
 407 }
 408
 409 static void
 410 cursor_changed_cb (GtkTreeView *treeview,
 411                    gpointer     user_data)
 412 {
 413   GtkFontChooserWidget *fontchooser = (GtkFontChooserWidget*)user_data;
 414   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
 415
 416   PangoFontFamily      *family;
 417   PangoFontFace        *face;
 418   PangoFontDescription *desc;
 419
 420   gint *sizes;
 421   gint  i, n_sizes;
 422
 423   GtkTreeIter  iter;
 424   GtkTreePath *path = gtk_tree_path_new ();
 425
 426   gtk_tree_view_get_cursor (treeview, &path, NULL);
 427
 428   if (!path)
 429     return;
 430
 431   if (!gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->filter_model), &iter, path))
 432     {
 433       gtk_tree_path_free (path);
 434       return;
 435     }
 436
 437   gtk_tree_model_get (GTK_TREE_MODEL (priv->filter_model), &iter,
 438                       FACE_COLUMN, &face,
 439                       FAMILY_COLUMN, &family,
 440                       -1);
 441
 442   gtk_tree_view_scroll_to_cell (treeview, path, NULL, FALSE, 0.5, 0.5);
 443
 444   gtk_tree_path_free (path);
 445   path = NULL;
 446
 447   desc = pango_font_face_describe (face);
 448   pango_font_description_set_size (desc, priv->size);
 449   gtk_widget_override_font (priv->preview, desc);
 450
 451   pango_font_face_list_sizes (face, &sizes, &n_sizes);
 452   /* It seems not many fonts actually have a sane set of sizes */
 453   for (i = 0; i < n_sizes; i++)
 454     sizes[i] = sizes[i] / PANGO_SCALE;
 455
 456   set_range_marks (priv, priv->size_slider, sizes, n_sizes);
 457
 458   if (priv->family)
 459     g_object_unref (priv->family);
 460   priv->family = family;
 461
 462   if (priv->face)
 463     g_object_unref (priv->face);
 464   priv->face = face;
 465
 466   if (priv->font_desc)
 467     pango_font_description_free (priv->font_desc);
 468   priv->font_desc = desc;
 469
 470   g_object_notify (G_OBJECT (fontchooser), "font");
 471   g_object_notify (G_OBJECT (fontchooser), "font-desc");
 472 }
 473
 474 static gboolean
 475 zoom_preview_cb (GtkWidget      *scrolled_window,
 476                  GdkEventScroll *event,
 477                  gpointer        user_data)
 478 {
 479   GtkFontChooserWidget        *fc    = (GtkFontChooserWidget*)user_data;
 480   GtkFontChooserWidgetPrivate *priv  = fc->priv;
 481
 482   GtkAdjustment *adj = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->size_spin));
 483
 484   if (event->direction == GDK_SCROLL_UP || event->direction == GDK_SCROLL_RIGHT)
 485     gtk_adjustment_set_value (adj,
 486                               gtk_adjustment_get_value (adj) +
 487                               gtk_adjustment_get_step_increment (adj));
 488   else if (event->direction == GDK_SCROLL_DOWN || event->direction == GDK_SCROLL_LEFT)
 489     gtk_adjustment_set_value (adj,
 490                               gtk_adjustment_get_value (adj) -
 491                               gtk_adjustment_get_step_increment (adj));
 492   return TRUE;
 493 }
 494
 495 static void
 496 row_inserted_cb (GtkTreeModel *model,
 497                  GtkTreePath  *path,
 498                  GtkTreeIter  *iter,
 499                  gpointer      user_data)
 500 {
 501   GtkFontChooserWidget        *fontchooser = (GtkFontChooserWidget*)user_data;
 502   GtkFontChooserWidgetPrivate *priv        = fontchooser->priv;
 503
 504   gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->list_notebook), 0);
 505 }
 506
 507 static void
 508 row_deleted_cb  (GtkTreeModel *model,
 509                  GtkTreePath  *path,
 510                  gpointer      user_data)
 511 {
 512   GtkFontChooserWidget        *fontchooser = (GtkFontChooserWidget*)user_data;
 513   GtkFontChooserWidgetPrivate *priv        = fontchooser->priv;
 514
 515   if (gtk_tree_model_iter_n_children (model, NULL) == 0)
 516     gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->list_notebook), 1);
 517 }
 518
 519 static void
 520 gtk_font_chooser_widget_init (GtkFontChooserWidget *fontchooser)
 521 {
 522   GIcon                   *icon;
 523   GtkFontChooserWidgetPrivate   *priv;
 524   const PangoFontDescription *font_desc;
 525   GtkWidget               *scrolled_win;
 526   GtkWidget               *grid;
 527
 528   fontchooser->priv = G_TYPE_INSTANCE_GET_PRIVATE (fontchooser,
 529                                                    GTK_TYPE_FONT_CHOOSER_WIDGET,
 530                                                    GtkFontChooserWidgetPrivate);
 531
 532   priv = fontchooser->priv;
 533
 534   /* Default preview string  */
 535   priv->preview_text = g_strdup (pango_language_get_sample_string (NULL));
 536   priv->show_preview_entry = TRUE;
 537
 538   /* Getting the default size */
 539   font_desc  = pango_context_get_font_description (gtk_widget_get_pango_context (GTK_WIDGET (fontchooser)));
 540   priv->size = pango_font_description_get_size (font_desc);
 541   priv->face = NULL;
 542   priv->family = NULL;
 543   priv->font_desc = NULL;
 544
 545   gtk_widget_push_composite_child ();
 546
 547   /* Creating fundamental widgets for the private struct */
 548   priv->search_entry = gtk_entry_new ();
 549   priv->family_face_list = gtk_tree_view_new ();
 550   priv->preview = gtk_entry_new ();
 551   priv->size_slider = gtk_scale_new_with_range (GTK_ORIENTATION_HORIZONTAL,
 552                                                 (gdouble) font_sizes[0],
 553                                                 (gdouble) font_sizes[G_N_ELEMENTS (font_sizes) - 1],
 554                                                 1.0);
 555
 556   priv->size_spin = gtk_spin_button_new_with_range (0.0, (gdouble)(G_MAXINT / PANGO_SCALE), 1.0);
 557
 558   /** Bootstrapping widget layout **/
 559   gtk_box_set_spacing (GTK_BOX (fontchooser), 6);
 560
 561   /* Main font family/face view */
 562   priv->list_scrolled_window = gtk_scrolled_window_new (NULL, NULL);
 563   scrolled_win = priv->list_scrolled_window;
 564   gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
 565                                   GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
 566   gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_win),
 567                                        GTK_SHADOW_ETCHED_IN);
 568   gtk_widget_set_size_request (scrolled_win, 400, 300);
 569   gtk_container_add (GTK_CONTAINER (scrolled_win), priv->family_face_list);
 570
 571   /* Text to display when list is empty */
 572   priv->empty_list = gtk_label_new (_(NO_FONT_MATCHED_SEARCH));
 573   gtk_widget_set_margin_top    (priv->empty_list, 12);
 574   gtk_widget_set_margin_left   (priv->empty_list, 12);
 575   gtk_widget_set_margin_right  (priv->empty_list, 12);
 576   gtk_widget_set_margin_bottom (priv->empty_list, 12);
 577   gtk_widget_set_halign (priv->empty_list, GTK_ALIGN_CENTER);
 578   gtk_widget_set_valign (priv->empty_list, GTK_ALIGN_START);
 579
 580   priv->list_notebook = gtk_notebook_new ();
 581   gtk_notebook_set_show_tabs (GTK_NOTEBOOK (priv->list_notebook), FALSE);
 582   gtk_notebook_append_page (GTK_NOTEBOOK (priv->list_notebook), scrolled_win, NULL);
 583   gtk_notebook_append_page (GTK_NOTEBOOK (priv->list_notebook), priv->empty_list, NULL);
 584
 585   /* Basic layout */
 586   grid = gtk_grid_new ();
 587
 588   gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
 589   gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
 590
 591   gtk_grid_attach (GTK_GRID (grid), priv->search_entry, 0, 0, 2, 1);
 592   gtk_grid_attach (GTK_GRID (grid), priv->list_notebook, 0, 1, 2, 1);
 593   gtk_grid_attach (GTK_GRID (grid), priv->preview,      0, 2, 2, 1);
 594
 595   gtk_grid_attach (GTK_GRID (grid), priv->size_slider,  0, 3, 1, 1);
 596   gtk_grid_attach (GTK_GRID (grid), priv->size_spin,    1, 3, 1, 1);
 597
 598   gtk_widget_set_hexpand  (GTK_WIDGET (scrolled_win),      TRUE);
 599   gtk_widget_set_vexpand  (GTK_WIDGET (scrolled_win),      TRUE);
 600   gtk_widget_set_hexpand  (GTK_WIDGET (priv->search_entry), TRUE);
 601
 602   gtk_widget_set_hexpand  (GTK_WIDGET (priv->size_slider), TRUE);
 603   gtk_widget_set_hexpand  (GTK_WIDGET (priv->size_spin),   FALSE);
 604
 605   gtk_box_pack_start (GTK_BOX (fontchooser), grid, TRUE, TRUE, 0);
 606
 607   /* Setting the adjustment values for the size slider */
 608   gtk_adjustment_set_value (gtk_range_get_adjustment (GTK_RANGE (priv->size_slider)),
 609                             (gdouble)(priv->size / PANGO_SCALE));
 610   gtk_adjustment_set_value (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->size_spin)),
 611                             (gdouble)(priv->size / PANGO_SCALE));
 612
 613   gtk_widget_show_all (GTK_WIDGET (fontchooser));
 614   gtk_widget_hide     (GTK_WIDGET (fontchooser));
 615
 616   /* Treeview column and model bootstrapping */
 617   gtk_font_chooser_widget_bootstrap_fontlist (fontchooser);
 618
 619   /* Set default preview text */
 620   gtk_entry_set_text (GTK_ENTRY (priv->preview),
 621                       pango_language_get_sample_string (NULL));
 622
 623   /* Set search icon and place holder text */
 624   icon = g_themed_icon_new_with_default_fallbacks ("edit-find-symbolic");
 625   g_object_set (G_OBJECT (priv->search_entry),
 626                 "secondary-icon-gicon", icon,
 627                 "secondary-icon-activatable", FALSE,
 628                 "secondary-icon-sensitive", FALSE,
 629                 NULL);
 630   g_object_unref (icon);
 631
 632   gtk_entry_set_placeholder_text (GTK_ENTRY (priv->search_entry), _("Search font name"));
 633
 634   /** Callback connections **/
 635   g_signal_connect (priv->search_entry, "notify::text",
 636                     G_CALLBACK (text_changed_cb), fontchooser);
 637   g_signal_connect (priv->search_entry,
 638                     "icon-press", G_CALLBACK (icon_press_cb), NULL);
 639
 640   g_signal_connect (gtk_range_get_adjustment (GTK_RANGE (priv->size_slider)),
 641                     "value-changed", G_CALLBACK (slider_change_cb), fontchooser);
 642   g_signal_connect (gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->size_spin)),
 643                     "value-changed", G_CALLBACK (spin_change_cb), fontchooser);
 644
 645   priv->cursor_changed_handler =
 646       g_signal_connect (priv->family_face_list, "cursor-changed",
 647                         G_CALLBACK (cursor_changed_cb), fontchooser);
 648
 649   g_signal_connect (priv->family_face_list, "row-activated",
 650                     G_CALLBACK (row_activated_cb), fontchooser);
 651
 652   /* Zoom on preview scroll */
 653   g_signal_connect (priv->preview, "scroll-event",
 654                     G_CALLBACK (zoom_preview_cb), fontchooser);
 655
 656   g_signal_connect (priv->size_slider, "scroll-event",
 657                     G_CALLBACK (zoom_preview_cb), fontchooser);
 658
 659   set_range_marks (priv, priv->size_slider, (gint*)font_sizes, G_N_ELEMENTS (font_sizes));
 660
 661   /* Font list empty hides the scrolledwindow */
 662   g_signal_connect (G_OBJECT (priv->filter_model), "row-deleted",
 663                     G_CALLBACK (row_deleted_cb), fontchooser);
 664   g_signal_connect (G_OBJECT (priv->filter_model), "row-inserted",
 665                     G_CALLBACK (row_inserted_cb), fontchooser);
 666
 667   /* Set default focus */
 668   gtk_widget_pop_composite_child ();
 669
 670   gtk_font_chooser_widget_take_font_desc (fontchooser, NULL);
 671 }
 672
 673 /**
 674  * gtk_font_chooser_widget_new:
 675  *
 676  * Creates a new #GtkFontChooserWidget.
 677  *
 678  * Return value: a new #GtkFontChooserWidget
 679  *
 680  * Since: 3.2
 681  */
 682 GtkWidget *
 683 gtk_font_chooser_widget_new (void)
 684 {
 685   return g_object_new (GTK_TYPE_FONT_CHOOSER_WIDGET, NULL);
 686 }
 687
 688 static int
 689 cmp_families (const void *a,
 690               const void *b)
 691 {
 692   const char *a_name = pango_font_family_get_name (*(PangoFontFamily **)a);
 693   const char *b_name = pango_font_family_get_name (*(PangoFontFamily **)b);
 694
 695   return g_utf8_collate (a_name, b_name);
 696 }
 697
 698 static void
 699 populate_list (GtkFontChooserWidget *fontchooser,
 700                GtkTreeView    *treeview,
 701                GtkListStore   *model)
 702 {
 703   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
 704   GtkStyleContext *style_context;
 705   PangoFontDescription *default_font;
 706   PangoFontDescription *selected_font;
 707
 708   gint match;
 709   GtkTreeIter match_row;
 710   GtkTreePath *path;
 711
 712   gint n_families, i;
 713   PangoFontFamily **families;
 714   gchar *tmp;
 715   gchar *family_and_face;
 716
 717   if (!gtk_widget_has_screen (GTK_WIDGET (fontchooser)))
 718     return;
 719
 720   pango_context_list_families (gtk_widget_get_pango_context (GTK_WIDGET (treeview)),
 721                                &families,
 722                                &n_families);
 723
 724   qsort (families, n_families, sizeof (PangoFontFamily *), cmp_families);
 725
 726   style_context = gtk_widget_get_style_context (GTK_WIDGET (treeview));
 727   default_font = (PangoFontDescription*) gtk_style_context_get_font (style_context,
 728                                                                      GTK_STATE_NORMAL);
 729
 730   if (priv->face)
 731     selected_font = pango_font_face_describe (priv->face);
 732   else
 733     selected_font = NULL;
 734
 735   gtk_list_store_clear (model);
 736
 737   match = 0;
 738
 739   /* Iterate over families and faces */
 740   for (i = 0; i < n_families; i++)
 741     {
 742       GtkTreeIter     iter;
 743       PangoFontFace **faces;
 744       int             j, n_faces;
 745       const gchar    *fam_name = pango_font_family_get_name (families[i]);
 746
 747       pango_font_family_list_faces (families[i], &faces, &n_faces);
 748
 749       for (j = 0; j < n_faces; j++)
 750         {
 751           PangoFontDescription *pango_desc;
 752           const gchar *face_name;
 753           gchar *font_desc;
 754
 755           pango_desc = pango_font_face_describe (faces[j]);
 756           face_name = pango_font_face_get_face_name (faces[j]);
 757           font_desc = pango_font_description_to_string (pango_desc);
 758
 759           family_and_face = g_strconcat (fam_name, " ", face_name, NULL);
 760           tmp = g_markup_printf_escaped (ROW_FORMAT_STRING,
 761                                          family_and_face,
 762                                          font_desc,
 763                                          fontchooser->priv->preview_text);
 764
 765           gtk_list_store_insert_with_values (model, &iter, -1,
 766                                              FAMILY_COLUMN, families[i],
 767                                              FACE_COLUMN, faces[j],
 768                                              PREVIEW_TITLE_COLUMN, family_and_face,
 769                                              PREVIEW_TEXT_COLUMN, tmp,
 770                                              -1);
 771
 772           /* Select the current font,
 773            * the default font/face from the theme,
 774            * or the first font
 775            */
 776           if (match < 3 &&
 777               selected_font != NULL &&
 778               pango_font_description_equal (selected_font, pango_desc))
 779             {
 780               match_row = iter;
 781               match = 3;
 782             }
 783           if (match < 2 &&
 784               strcmp (fam_name, pango_font_description_get_family (default_font)) == 0)
 785             {
 786               match_row = iter;
 787               match = 2;
 788             }
 789           if (match < 1)
 790             {
 791               match_row = iter;
 792               match = 1;
 793             }
 794
 795           pango_font_description_free (pango_desc);
 796           g_free (family_and_face);
 797           g_free (tmp);
 798           g_free (font_desc);
 799         }
 800
 801       g_free (faces);
 802     }
 803
 804   path = gtk_tree_model_get_path (GTK_TREE_MODEL (model), &match_row);
 805   if (path)
 806     {
 807       gtk_tree_view_set_cursor (treeview, path, NULL, FALSE);
 808       gtk_tree_view_scroll_to_cell (treeview, path, NULL, FALSE, 0.5, 0.5);
 809       gtk_tree_path_free (path);
 810     }
 811
 812   if (selected_font)
 813     pango_font_description_free (selected_font);
 814
 815   g_free (families);
 816 }
 817
 818 static gboolean
 819 visible_func (GtkTreeModel *model,
 820               GtkTreeIter  *iter,
 821               gpointer      user_data)
 822 {
 823   GtkFontChooserWidgetPrivate *priv = user_data;
 824   gboolean result = TRUE;
 825   const gchar *search_text;
 826   gchar **split_terms;
 827   gchar *font_name, *font_name_casefold, *term_casefold;
 828   guint i;
 829
 830   if (priv->filter_func != NULL)
 831     {
 832       PangoFontFamily *family;
 833       PangoFontFace *face;
 834
 835       gtk_tree_model_get (model, iter,
 836                           FAMILY_COLUMN, &family,
 837                           FACE_COLUMN, &face,
 838                           -1);
 839
 840       result = priv->filter_func (family, face, priv->filter_data);
 841
 842       g_object_unref (family);
 843       g_object_unref (face);
 844
 845       if (!result)
 846         return FALSE;
 847     }
 848
 849   /* If there's no filter string we show the item */
 850   search_text = gtk_entry_get_text (GTK_ENTRY (priv->search_entry));
 851   if (strlen (search_text) == 0)
 852     return TRUE;
 853
 854   gtk_tree_model_get (model, iter,
 855                       PREVIEW_TITLE_COLUMN, &font_name,
 856                       -1);
 857
 858   if (font_name == NULL)
 859     return FALSE;
 860
 861   split_terms = g_strsplit (search_text, " ", 0);
 862   font_name_casefold = g_utf8_casefold (font_name, -1);
 863
 864   for (i = 0; split_terms[i] && result; i++)
 865     {
 866       gchar* term_casefold = g_utf8_casefold (split_terms[i], -1);
 867
 868       if (!strstr (font_name_casefold, term_casefold))
 869         result = FALSE;
 870
 871       g_free (term_casefold);
 872     }
 873
 874   g_free (font_name_casefold);
 875   g_free (font_name);
 876   g_strfreev (split_terms);
 877
 878   return result;
 879 }
 880
 881 static void
 882 gtk_font_chooser_widget_bootstrap_fontlist (GtkFontChooserWidget *fontchooser)
 883 {
 884   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
 885   GtkTreeView       *treeview = GTK_TREE_VIEW (priv->family_face_list);
 886   GtkCellRenderer   *cell;
 887   GtkTreeViewColumn *col;
 888
 889   priv->model = gtk_list_store_new (4,
 890                                     PANGO_TYPE_FONT_FAMILY,
 891                                     PANGO_TYPE_FONT_FACE,
 892                                     G_TYPE_STRING,
 893                                     G_TYPE_STRING);
 894
 895   priv->filter_model = gtk_tree_model_filter_new (GTK_TREE_MODEL (priv->model), NULL);
 896   g_object_unref (priv->model);
 897
 898   gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (priv->filter_model),
 899                                           visible_func, (gpointer)priv, NULL);
 900
 901   gtk_tree_view_set_model (treeview, GTK_TREE_MODEL (priv->filter_model));
 902   g_object_unref (priv->filter_model);
 903
 904   gtk_tree_view_set_rules_hint      (treeview, TRUE);
 905   gtk_tree_view_set_headers_visible (treeview, FALSE);
 906
 907   cell = gtk_cell_renderer_text_new ();
 908   col = gtk_tree_view_column_new_with_attributes (_("Font Family"),
 909                                                   cell,
 910                                                   "markup", PREVIEW_TEXT_COLUMN,
 911                                                   NULL);
 912
 913   g_object_set (cell, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
 914
 915   gtk_tree_view_append_column (treeview, col);
 916
 917   populate_list (fontchooser, treeview, priv->model);
 918 }
 919
 920 static void
 921 gtk_font_chooser_widget_dispose (GObject *object)
 922 {
 923   GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (object);
 924   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
 925
 926   if (priv->cursor_changed_handler != 0)
 927     {
 928       g_signal_handler_disconnect (priv->family_face_list,
 929                                    priv->cursor_changed_handler);
 930       priv->cursor_changed_handler = 0;
 931     }
 932
 933   G_OBJECT_CLASS (gtk_font_chooser_widget_parent_class)->dispose (object);
 934 }
 935
 936 static void
 937 gtk_font_chooser_widget_finalize (GObject *object)
 938 {
 939   GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (object);
 940   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
 941
 942   if (priv->font_desc)
 943     pango_font_description_free (priv->font_desc);
 944
 945   if (priv->family)
 946     g_object_unref (priv->family);
 947
 948   if (priv->face)
 949     g_object_unref (priv->face);
 950
 951   if (priv->filter_data_destroy)
 952     priv->filter_data_destroy (priv->filter_data);
 953
 954   G_OBJECT_CLASS (gtk_font_chooser_widget_parent_class)->finalize (object);
 955 }
 956
 957 static void
 958 gtk_font_chooser_widget_screen_changed (GtkWidget *widget,
 959                                         GdkScreen *previous_screen)
 960 {
 961   GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (widget);
 962   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
 963
 964   if (GTK_WIDGET_CLASS (gtk_font_chooser_widget_parent_class)->screen_changed)
 965     GTK_WIDGET_CLASS (gtk_font_chooser_widget_parent_class)->screen_changed (widget, previous_screen);
 966
 967   populate_list (fontchooser,
 968                  GTK_TREE_VIEW (priv->family_face_list),
 969                  priv->model);
 970
 971   gtk_font_chooser_widget_select_font (fontchooser);
 972 }
 973
 974 static void
 975 gtk_font_chooser_widget_style_updated (GtkWidget *widget)
 976 {
 977   GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (widget);
 978
 979   GTK_WIDGET_CLASS (gtk_font_chooser_widget_parent_class)->style_updated (widget);
 980
 981   populate_list (fontchooser,
 982                  GTK_TREE_VIEW (fontchooser->priv->family_face_list),
 983                  fontchooser->priv->model);
 984 }
 985
 986 static PangoFontFamily *
 987 gtk_font_chooser_widget_get_family (GtkFontChooser *chooser)
 988 {
 989   GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
 990
 991   return fontchooser->priv->family;
 992 }
 993
 994 static PangoFontFace *
 995 gtk_font_chooser_widget_get_face (GtkFontChooser *chooser)
 996 {
 997   GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
 998
 999   return fontchooser->priv->face;
1000 }
1001
1002 static gint
1003 gtk_font_chooser_widget_get_size (GtkFontChooser *chooser)
1004 {
1005   GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
1006
1007   return fontchooser->priv->size;
1008 }
1009
1010 static gchar *
1011 gtk_font_chooser_widget_get_font (GtkFontChooserWidget *fontchooser)
1012 {
1013   return pango_font_description_to_string (fontchooser->priv->font_desc);
1014 }
1015
1016 static PangoFontDescription *
1017 gtk_font_chooser_widget_get_font_desc (GtkFontChooserWidget *fontchooser)
1018 {
1019   return fontchooser->priv->font_desc;
1020 }
1021
1022 static void
1023 gtk_font_chooser_widget_set_font (GtkFontChooserWidget *fontchooser,
1024                                   const gchar          *fontname)
1025 {
1026   PangoFontDescription *font_desc;
1027
1028   font_desc = pango_font_description_from_string (fontname);
1029   gtk_font_chooser_widget_take_font_desc (fontchooser, font_desc);
1030 }
1031
1032 static void
1033 gtk_font_chooser_widget_take_font_desc (GtkFontChooserWidget *fontchooser,
1034                                         PangoFontDescription *font_desc)
1035 {
1036   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
1037
1038   if (font_desc && priv->font_desc &&
1039       pango_font_description_equal (font_desc, priv->font_desc))
1040     {
1041       pango_font_description_free (font_desc);
1042       return;
1043     }
1044
1045   if (priv->font_desc)
1046     pango_font_description_free (priv->font_desc);
1047   if (font_desc)
1048     priv->font_desc = font_desc; /* adopted */
1049   else
1050     priv->font_desc = pango_font_description_from_string (GTK_FONT_CHOOSER_DEFAULT_FONT_NAME);
1051
1052   gtk_font_chooser_widget_select_font (fontchooser);
1053 }
1054
1055 static void
1056 gtk_font_chooser_widget_select_font (GtkFontChooserWidget *fontchooser)
1057 {
1058   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
1059   const PangoFontDescription *desc;
1060   const gchar *family_name;
1061   gint font_size;
1062   gboolean font_size_is_absolute;
1063   GtkTreeIter iter;
1064   gboolean valid;
1065   gboolean found = FALSE;
1066
1067   desc = priv->font_desc;
1068   g_assert (desc != NULL);
1069
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);
1073
1074   /* We make sure the filter is clear */
1075   gtk_entry_set_text (GTK_ENTRY (priv->search_entry), "");
1076
1077   if (!family_name)
1078     goto deselect;
1079
1080   /* We find the matching family/face */
1081   for (valid = gtk_tree_model_get_iter_first (GTK_TREE_MODEL (priv->filter_model), &iter);
1082        valid;
1083        valid = gtk_tree_model_iter_next (GTK_TREE_MODEL (priv->filter_model), &iter))
1084     {
1085       PangoFontFace        *face;
1086       PangoFontDescription *tmp_desc;
1087
1088       gtk_tree_model_get (GTK_TREE_MODEL (priv->filter_model), &iter,
1089                           FACE_COLUMN, &face,
1090                           -1);
1091
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);
1095       else
1096         pango_font_description_set_size (tmp_desc, font_size);
1097
1098       if (pango_font_description_equal (desc, tmp_desc))
1099         {
1100           GtkTreePath *path;
1101
1102           if (font_size)
1103             {
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);
1108             }
1109
1110           path = gtk_tree_model_get_path (GTK_TREE_MODEL (priv->filter_model), &iter);
1111
1112           if (path)
1113             {
1114               gtk_tree_view_set_cursor (GTK_TREE_VIEW (priv->family_face_list),
1115                                         path,
1116                                         NULL,
1117                                         FALSE);
1118               gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (priv->family_face_list),
1119                                             path,
1120                                             NULL,
1121                                             FALSE,
1122                                             0.5,
1123                                             0.5);
1124               gtk_tree_path_free (path);
1125             }
1126
1127           found = TRUE;
1128         }
1129
1130       g_object_unref (face);
1131       pango_font_description_free (tmp_desc);
1132
1133       if (found)
1134         break;
1135     }
1136
1137 deselect:
1138   if (!found)
1139     {
1140       gtk_tree_selection_unselect_all
1141         (gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->family_face_list)));
1142     }
1143 }
1144
1145 static const gchar*
1146 gtk_font_chooser_widget_get_preview_text (GtkFontChooserWidget *fontchooser)
1147 {
1148   return fontchooser->priv->preview_text;
1149 }
1150
1151 static void
1152 gtk_font_chooser_widget_set_preview_text (GtkFontChooserWidget *fontchooser,
1153                                           const gchar          *text)
1154 {
1155   g_free (fontchooser->priv->preview_text);
1156   fontchooser->priv->preview_text = g_strdup (text);
1157
1158   populate_list (fontchooser,
1159                  GTK_TREE_VIEW (fontchooser->priv->family_face_list),
1160                  fontchooser->priv->model);
1161
1162   gtk_entry_set_text (GTK_ENTRY (fontchooser->priv->preview), text);
1163
1164   g_object_notify (G_OBJECT (fontchooser), "preview-text");
1165 }
1166
1167 static gboolean
1168 gtk_font_chooser_widget_get_show_preview_entry (GtkFontChooserWidget *fontchooser)
1169 {
1170   return fontchooser->priv->show_preview_entry;
1171 }
1172
1173 static void
1174 gtk_font_chooser_widget_set_show_preview_entry (GtkFontChooserWidget *fontchooser,
1175                                                 gboolean              show_preview_entry)
1176 {
1177   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
1178
1179   if (priv->show_preview_entry != show_preview_entry)
1180     {
1181       fontchooser->priv->show_preview_entry = show_preview_entry;
1182
1183       if (show_preview_entry)
1184         gtk_widget_show (fontchooser->priv->preview);
1185       else
1186         gtk_widget_hide (fontchooser->priv->preview);
1187
1188       g_object_notify (G_OBJECT (fontchooser), "show-preview-entry");
1189     }
1190 }
1191
1192 static void
1193 gtk_font_chooser_widget_set_filter_func (GtkFontChooser  *chooser,
1194                                          GtkFontFilterFunc filter,
1195                                          gpointer          data,
1196                                          GDestroyNotify    destroy)
1197 {
1198   GtkFontChooserWidget        *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
1199   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
1200
1201   if (priv->filter_data_destroy)
1202     priv->filter_data_destroy (priv->filter_data);
1203
1204   priv->filter_func = filter;
1205   priv->filter_data = data;
1206   priv->filter_data_destroy = destroy;
1207
1208   gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (priv->filter_model));
1209 }
1210
1211 static void
1212 gtk_font_chooser_widget_iface_init (GtkFontChooserIface *iface)
1213 {
1214   iface->get_font_family = gtk_font_chooser_widget_get_family;
1215   iface->get_font_face = gtk_font_chooser_widget_get_face;
1216   iface->get_font_size = gtk_font_chooser_widget_get_size;
1217   iface->set_filter_func = gtk_font_chooser_widget_set_filter_func;
1218 }