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         (GtkFontChooser *chooser);
 153 static void     gtk_font_chooser_widget_set_font         (GtkFontChooser *chooser,
 154                                                           const gchar     *fontname);
 155
 156 static PangoFontDescription *gtk_font_chooser_widget_get_font_desc  (GtkFontChooser       *chooser);
 157 static void                  gtk_font_chooser_widget_take_font_desc (GtkFontChooser       *chooser,
 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 (GTK_FONT_CHOOSER (fontchooser), g_value_get_string (value));
 206       break;
 207     case GTK_FONT_CHOOSER_PROP_FONT_DESC:
 208       gtk_font_chooser_widget_take_font_desc (GTK_FONT_CHOOSER (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 (GTK_FONT_CHOOSER (fontchooser)));
 234       break;
 235     case GTK_FONT_CHOOSER_PROP_FONT_DESC:
 236       g_value_set_boxed (value, gtk_font_chooser_widget_get_font_desc (GTK_FONT_CHOOSER (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
 324   gdouble size = gtk_adjustment_get_value (adjustment);
 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   g_object_notify (G_OBJECT (fontchooser), "font");
 332   g_object_notify (G_OBJECT (fontchooser), "font-desc");
 333
 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
 336    */
 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));
 340
 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
 343    */
 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));
 347
 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);
 351
 352   gtk_widget_queue_draw (priv->preview);
 353 }
 354
 355 static void
 356 set_range_marks (GtkFontChooserWidgetPrivate *priv,
 357                  GtkWidget             *size_slider,
 358                  gint                  *sizes,
 359                  gint                   length)
 360 {
 361   GtkAdjustment *adj;
 362   gint i;
 363   gdouble value;
 364
 365   if (length < 2)
 366     {
 367       sizes = (gint*)font_sizes;
 368       length = G_N_ELEMENTS (font_sizes);
 369     }
 370
 371   gtk_scale_clear_marks (GTK_SCALE (size_slider));
 372
 373   adj = gtk_range_get_adjustment(GTK_RANGE (size_slider));
 374
 375   gtk_adjustment_set_lower (adj, (gdouble) sizes[0]);
 376   gtk_adjustment_set_upper (adj, (gdouble) sizes[length-1]);
 377
 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]);
 383
 384   for (i = 0; i < length; i++)
 385     gtk_scale_add_mark (GTK_SCALE (size_slider),
 386                         (gdouble) sizes[i],
 387                         GTK_POS_BOTTOM, NULL);
 388 }
 389
 390 static void
 391 row_activated_cb (GtkTreeView       *view,
 392                   GtkTreePath       *path,
 393                   GtkTreeViewColumn *column,
 394                   gpointer           user_data)
 395 {
 396   GtkFontChooser *chooser = user_data;
 397   gchar *fontname;
 398
 399   fontname = gtk_font_chooser_widget_get_font (chooser);
 400   _gtk_font_chooser_font_activated (chooser, fontname);
 401   g_free (fontname);
 402 }
 403
 404 static void
 405 cursor_changed_cb (GtkTreeView *treeview,
 406                    gpointer     user_data)
 407 {
 408   GtkFontChooserWidget *fontchooser = (GtkFontChooserWidget*)user_data;
 409   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
 410
 411   PangoFontFamily      *family;
 412   PangoFontFace        *face;
 413   PangoFontDescription *desc;
 414
 415   gint *sizes;
 416   gint  i, n_sizes;
 417
 418   GtkTreeIter  iter;
 419   GtkTreePath *path = gtk_tree_path_new ();
 420
 421   gtk_tree_view_get_cursor (treeview, &path, NULL);
 422
 423   if (!path)
 424     return;
 425
 426   if (!gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->filter_model), &iter, path))
 427     {
 428       gtk_tree_path_free (path);
 429       return;
 430     }
 431
 432   gtk_tree_model_get (GTK_TREE_MODEL (priv->filter_model), &iter,
 433                       FACE_COLUMN, &face,
 434                       FAMILY_COLUMN, &family,
 435                       -1);
 436
 437   gtk_tree_view_scroll_to_cell (treeview, path, NULL, FALSE, 0.5, 0.5);
 438
 439   gtk_tree_path_free (path);
 440   path = NULL;
 441
 442   if (face == NULL || family == NULL)
 443     {
 444       if (face)
 445         g_object_unref (face);
 446       if (family)
 447         g_object_unref (family);
 448
 449       return;
 450     }
 451
 452   desc = pango_font_face_describe (face);
 453   pango_font_description_set_size (desc, priv->size);
 454   gtk_widget_override_font (priv->preview, desc);
 455
 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;
 460
 461   set_range_marks (priv, priv->size_slider, sizes, n_sizes);
 462
 463   if (priv->family)
 464     g_object_unref (priv->family);
 465   priv->family = family;
 466
 467   if (priv->face)
 468     g_object_unref (priv->face);
 469   priv->face = face;
 470
 471   if (priv->font_desc)
 472     pango_font_description_free (priv->font_desc);
 473   priv->font_desc = desc;
 474
 475   g_object_notify (G_OBJECT (fontchooser), "font");
 476   g_object_notify (G_OBJECT (fontchooser), "font-desc");
 477 }
 478
 479 static gboolean
 480 zoom_preview_cb (GtkWidget      *scrolled_window,
 481                  GdkEventScroll *event,
 482                  gpointer        user_data)
 483 {
 484   GtkFontChooserWidget        *fc    = (GtkFontChooserWidget*)user_data;
 485   GtkFontChooserWidgetPrivate *priv  = fc->priv;
 486
 487   GtkAdjustment *adj = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (priv->size_spin));
 488
 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));
 497   return TRUE;
 498 }
 499
 500 static void
 501 row_inserted_cb (GtkTreeModel *model,
 502                  GtkTreePath  *path,
 503                  GtkTreeIter  *iter,
 504                  gpointer      user_data)
 505 {
 506   GtkFontChooserWidget        *fontchooser = (GtkFontChooserWidget*)user_data;
 507   GtkFontChooserWidgetPrivate *priv        = fontchooser->priv;
 508
 509   gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->list_notebook), 0);
 510 }
 511
 512 static void
 513 row_deleted_cb  (GtkTreeModel *model,
 514                  GtkTreePath  *path,
 515                  gpointer      user_data)
 516 {
 517   GtkFontChooserWidget        *fontchooser = (GtkFontChooserWidget*)user_data;
 518   GtkFontChooserWidgetPrivate *priv        = fontchooser->priv;
 519
 520   if (gtk_tree_model_iter_n_children (model, NULL) == 0)
 521     gtk_notebook_set_current_page (GTK_NOTEBOOK (priv->list_notebook), 1);
 522 }
 523
 524 static void
 525 gtk_font_chooser_widget_init (GtkFontChooserWidget *fontchooser)
 526 {
 527   GIcon                   *icon;
 528   GtkFontChooserWidgetPrivate   *priv;
 529   const PangoFontDescription *font_desc;
 530   GtkWidget               *scrolled_win;
 531   GtkWidget               *grid;
 532
 533   fontchooser->priv = G_TYPE_INSTANCE_GET_PRIVATE (fontchooser,
 534                                                    GTK_TYPE_FONT_CHOOSER_WIDGET,
 535                                                    GtkFontChooserWidgetPrivate);
 536
 537   priv = fontchooser->priv;
 538
 539   /* Default preview string  */
 540   priv->preview_text = g_strdup (pango_language_get_sample_string (NULL));
 541   priv->show_preview_entry = TRUE;
 542
 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);
 546   priv->face = NULL;
 547   priv->family = NULL;
 548   priv->font_desc = NULL;
 549
 550   gtk_widget_push_composite_child ();
 551
 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],
 559                                                 1.0);
 560
 561   priv->size_spin = gtk_spin_button_new_with_range (0.0, (gdouble)(G_MAXINT / PANGO_SCALE), 1.0);
 562
 563   /** Bootstrapping widget layout **/
 564   gtk_box_set_spacing (GTK_BOX (fontchooser), 6);
 565
 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);
 575
 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);
 584
 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);
 589
 590   /* Basic layout */
 591   grid = gtk_grid_new ();
 592
 593   gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
 594   gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
 595
 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);
 599
 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);
 602
 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);
 606
 607   gtk_widget_set_hexpand  (GTK_WIDGET (priv->size_slider), TRUE);
 608   gtk_widget_set_hexpand  (GTK_WIDGET (priv->size_spin),   FALSE);
 609
 610   gtk_box_pack_start (GTK_BOX (fontchooser), grid, TRUE, TRUE, 0);
 611
 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));
 617
 618   gtk_widget_show_all (GTK_WIDGET (fontchooser));
 619   gtk_widget_hide     (GTK_WIDGET (fontchooser));
 620
 621   /* Treeview column and model bootstrapping */
 622   gtk_font_chooser_widget_bootstrap_fontlist (fontchooser);
 623
 624   /* Set default preview text */
 625   gtk_entry_set_text (GTK_ENTRY (priv->preview),
 626                       pango_language_get_sample_string (NULL));
 627
 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,
 634                 NULL);
 635   g_object_unref (icon);
 636
 637   gtk_entry_set_placeholder_text (GTK_ENTRY (priv->search_entry), _("Search font name"));
 638
 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);
 644
 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);
 649
 650   priv->cursor_changed_handler =
 651       g_signal_connect (priv->family_face_list, "cursor-changed",
 652                         G_CALLBACK (cursor_changed_cb), fontchooser);
 653
 654   g_signal_connect (priv->family_face_list, "row-activated",
 655                     G_CALLBACK (row_activated_cb), fontchooser);
 656
 657   /* Zoom on preview scroll */
 658   g_signal_connect (priv->preview, "scroll-event",
 659                     G_CALLBACK (zoom_preview_cb), fontchooser);
 660
 661   g_signal_connect (priv->size_slider, "scroll-event",
 662                     G_CALLBACK (zoom_preview_cb), fontchooser);
 663
 664   set_range_marks (priv, priv->size_slider, (gint*)font_sizes, G_N_ELEMENTS (font_sizes));
 665
 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);
 671
 672   /* Set default focus */
 673   gtk_widget_pop_composite_child ();
 674
 675   gtk_font_chooser_widget_take_font_desc (GTK_FONT_CHOOSER (fontchooser), NULL);
 676 }
 677
 678 /**
 679  * gtk_font_chooser_widget_new:
 680  *
 681  * Creates a new #GtkFontChooserWidget.
 682  *
 683  * Return value: a new #GtkFontChooserWidget
 684  *
 685  * Since: 3.2
 686  */
 687 GtkWidget *
 688 gtk_font_chooser_widget_new (void)
 689 {
 690   return g_object_new (GTK_TYPE_FONT_CHOOSER_WIDGET, NULL);
 691 }
 692
 693 static int
 694 cmp_families (const void *a,
 695               const void *b)
 696 {
 697   const char *a_name = pango_font_family_get_name (*(PangoFontFamily **)a);
 698   const char *b_name = pango_font_family_get_name (*(PangoFontFamily **)b);
 699
 700   return g_utf8_collate (a_name, b_name);
 701 }
 702
 703 static void
 704 populate_list (GtkFontChooserWidget *fontchooser,
 705                GtkTreeView    *treeview,
 706                GtkListStore   *model)
 707 {
 708   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
 709   GtkStyleContext *style_context;
 710   PangoFontDescription *default_font;
 711   PangoFontDescription *selected_font;
 712
 713   gint match;
 714   GtkTreeIter match_row;
 715   GtkTreePath *path;
 716
 717   gint n_families, i;
 718   PangoFontFamily **families;
 719   gchar *tmp;
 720   gchar *family_and_face;
 721
 722   if (!gtk_widget_has_screen (GTK_WIDGET (fontchooser)))
 723     return;
 724
 725   pango_context_list_families (gtk_widget_get_pango_context (GTK_WIDGET (treeview)),
 726                                &families,
 727                                &n_families);
 728
 729   qsort (families, n_families, sizeof (PangoFontFamily *), cmp_families);
 730
 731   style_context = gtk_widget_get_style_context (GTK_WIDGET (treeview));
 732   default_font = (PangoFontDescription*) gtk_style_context_get_font (style_context,
 733                                                                      GTK_STATE_NORMAL);
 734
 735   if (priv->face)
 736     selected_font = pango_font_face_describe (priv->face);
 737   else
 738     selected_font = NULL;
 739
 740   gtk_list_store_clear (model);
 741
 742   match = 0;
 743
 744   /* Iterate over families and faces */
 745   for (i = 0; i < n_families; i++)
 746     {
 747       GtkTreeIter     iter;
 748       PangoFontFace **faces;
 749       int             j, n_faces;
 750       const gchar    *fam_name = pango_font_family_get_name (families[i]);
 751
 752       pango_font_family_list_faces (families[i], &faces, &n_faces);
 753
 754       for (j = 0; j < n_faces; j++)
 755         {
 756           PangoFontDescription *pango_desc;
 757           const gchar *face_name;
 758           gchar *font_desc;
 759
 760           if (priv->filter_func != NULL &&
 761               !priv->filter_func (families[i], faces[j], priv->filter_data))
 762             continue;
 763
 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);
 767
 768           family_and_face = g_strconcat (fam_name, " ", face_name, NULL);
 769           tmp = g_markup_printf_escaped (ROW_FORMAT_STRING,
 770                                          family_and_face,
 771                                          font_desc,
 772                                          fontchooser->priv->preview_text);
 773
 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,
 780                               -1);
 781
 782           /* Select the current font,
 783            * the default font/face from the theme,
 784            * or the first font
 785            */
 786           if (match < 3 &&
 787               selected_font != NULL &&
 788               pango_font_description_equal (selected_font, pango_desc))
 789             {
 790               match_row = iter;
 791               match = 3;
 792             }
 793           if (match < 2 &&
 794               strcmp (fam_name, pango_font_description_get_family (default_font)) == 0)
 795             {
 796               match_row = iter;
 797               match = 2;
 798             }
 799           if (match < 1)
 800             {
 801               match_row = iter;
 802               match = 1;
 803             }
 804
 805           pango_font_description_free (pango_desc);
 806           g_free (family_and_face);
 807           g_free (tmp);
 808           g_free (font_desc);
 809         }
 810
 811       g_free (faces);
 812     }
 813
 814   path = gtk_tree_model_get_path (GTK_TREE_MODEL (model), &match_row);
 815   if (path)
 816     {
 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);
 820     }
 821
 822   if (selected_font)
 823     pango_font_description_free (selected_font);
 824
 825   g_free (families);
 826 }
 827
 828 static gboolean
 829 visible_func (GtkTreeModel *model,
 830               GtkTreeIter  *iter,
 831               gpointer      user_data)
 832 {
 833   gboolean result = TRUE;
 834   GtkFontChooserWidgetPrivate *priv = (GtkFontChooserWidgetPrivate*)user_data;
 835
 836   const gchar *search_text = (const gchar*)gtk_entry_get_text (GTK_ENTRY (priv->search_entry));
 837   gchar       *font_name;
 838   gchar       *term;
 839   gchar      **split_terms;
 840   gint         n_terms = 0;
 841
 842   /* If there's no filter string we show the item */
 843   if (strlen (search_text) == 0)
 844     return TRUE;
 845
 846   gtk_tree_model_get (model, iter,
 847                       PREVIEW_TITLE_COLUMN, &font_name,
 848                       -1);
 849
 850   if (font_name == NULL)
 851     return FALSE;
 852
 853   split_terms = g_strsplit (search_text, " ", 0);
 854   term = split_terms[0];
 855
 856   while (term && result)
 857   {
 858     gchar* font_name_casefold = g_utf8_casefold (font_name, -1);
 859     gchar* term_casefold = g_utf8_casefold (term, -1);
 860
 861     if (g_strrstr (font_name_casefold, term_casefold))
 862       result = result && TRUE;
 863     else
 864       result = FALSE;
 865
 866     n_terms++;
 867     term = split_terms[n_terms];
 868
 869     g_free (term_casefold);
 870     g_free (font_name_casefold);
 871   }
 872
 873   g_free (font_name);
 874   g_strfreev (split_terms);
 875
 876   return result;
 877 }
 878
 879 static void
 880 gtk_font_chooser_widget_bootstrap_fontlist (GtkFontChooserWidget *fontchooser)
 881 {
 882   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
 883   GtkTreeView       *treeview = GTK_TREE_VIEW (priv->family_face_list);
 884   GtkCellRenderer   *cell;
 885   GtkTreeViewColumn *col;
 886
 887   priv->model = gtk_list_store_new (4,
 888                                     PANGO_TYPE_FONT_FAMILY,
 889                                     PANGO_TYPE_FONT_FACE,
 890                                     G_TYPE_STRING,
 891                                     G_TYPE_STRING);
 892
 893   priv->filter_model = gtk_tree_model_filter_new (GTK_TREE_MODEL (priv->model), NULL);
 894   g_object_unref (priv->model);
 895
 896   gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (priv->filter_model),
 897                                           visible_func, (gpointer)priv, NULL);
 898
 899   gtk_tree_view_set_model (treeview, GTK_TREE_MODEL (priv->filter_model));
 900   g_object_unref (priv->filter_model);
 901
 902   gtk_tree_view_set_rules_hint      (treeview, TRUE);
 903   gtk_tree_view_set_headers_visible (treeview, FALSE);
 904
 905   cell = gtk_cell_renderer_text_new ();
 906   col = gtk_tree_view_column_new_with_attributes (_("Font Family"),
 907                                                   cell,
 908                                                   "markup", PREVIEW_TEXT_COLUMN,
 909                                                   NULL);
 910
 911   g_object_set (cell, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
 912
 913   gtk_tree_view_append_column (treeview, col);
 914
 915   populate_list (fontchooser, treeview, priv->model);
 916 }
 917
 918 static void
 919 gtk_font_chooser_widget_dispose (GObject *object)
 920 {
 921   GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (object);
 922   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
 923
 924   if (priv->cursor_changed_handler != 0)
 925     {
 926       g_signal_handler_disconnect (priv->family_face_list,
 927                                    priv->cursor_changed_handler);
 928       priv->cursor_changed_handler = 0;
 929     }
 930
 931   G_OBJECT_CLASS (gtk_font_chooser_widget_parent_class)->dispose (object);
 932 }
 933
 934 static void
 935 gtk_font_chooser_widget_finalize (GObject *object)
 936 {
 937   GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (object);
 938   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
 939
 940   if (priv->font_desc)
 941     pango_font_description_free (priv->font_desc);
 942
 943   if (priv->family)
 944     g_object_unref (priv->family);
 945
 946   if (priv->face)
 947     g_object_unref (priv->face);
 948
 949   if (priv->filter_data_destroy)
 950     priv->filter_data_destroy (priv->filter_data);
 951
 952   G_OBJECT_CLASS (gtk_font_chooser_widget_parent_class)->finalize (object);
 953 }
 954
 955 static void
 956 gtk_font_chooser_widget_screen_changed (GtkWidget *widget,
 957                                         GdkScreen *previous_screen)
 958 {
 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;
 963
 964   if (screen_changed)
 965     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 (GtkFontChooser *chooser)
1012 {
1013   GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
1014
1015   return pango_font_description_to_string (fontchooser->priv->font_desc);
1016 }
1017
1018 static PangoFontDescription *
1019 gtk_font_chooser_widget_get_font_desc (GtkFontChooser *chooser)
1020 {
1021   GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
1022
1023   return fontchooser->priv->font_desc;
1024 }
1025
1026 static void
1027 gtk_font_chooser_widget_set_font (GtkFontChooser *chooser,
1028                                   const gchar    *fontname)
1029 {
1030   PangoFontDescription *font_desc;
1031
1032   font_desc = pango_font_description_from_string (fontname);
1033   gtk_font_chooser_widget_take_font_desc (chooser, font_desc);
1034 }
1035
1036 static void
1037 gtk_font_chooser_widget_take_font_desc (GtkFontChooser        *chooser,
1038                                         PangoFontDescription *font_desc)
1039 {
1040   GtkFontChooserWidget *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
1041   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
1042
1043   if (font_desc && priv->font_desc &&
1044       pango_font_description_equal (font_desc, priv->font_desc))
1045     {
1046       pango_font_description_free (font_desc);
1047       return;
1048     }
1049
1050   if (priv->font_desc)
1051     pango_font_description_free (priv->font_desc);
1052   if (font_desc)
1053     priv->font_desc = font_desc; /* adopted */
1054   else
1055     priv->font_desc = pango_font_description_from_string (GTK_FONT_CHOOSER_DEFAULT_FONT_NAME);
1056
1057   gtk_font_chooser_widget_select_font (fontchooser);
1058 }
1059
1060 static void
1061 gtk_font_chooser_widget_select_font (GtkFontChooserWidget *fontchooser)
1062 {
1063   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
1064   const PangoFontDescription *desc;
1065   const gchar *family_name;
1066   gint font_size;
1067   gboolean font_size_is_absolute;
1068   GtkTreeIter iter;
1069   gboolean valid;
1070   gboolean found = FALSE;
1071
1072   desc = priv->font_desc;
1073   g_assert (desc != NULL);
1074
1075   font_size = pango_font_description_get_size (desc);
1076   font_size_is_absolute = pango_font_description_get_size_is_absolute (desc);
1077   family_name = pango_font_description_get_family (desc);
1078
1079   /* We make sure the filter is clear */
1080   gtk_entry_set_text (GTK_ENTRY (priv->search_entry), "");
1081
1082   if (!family_name)
1083     goto deselect;
1084
1085   /* We find the matching family/face */
1086   for (valid = gtk_tree_model_get_iter_first (GTK_TREE_MODEL (priv->filter_model), &iter);
1087        valid;
1088        valid = gtk_tree_model_iter_next (GTK_TREE_MODEL (priv->filter_model), &iter))
1089     {
1090       PangoFontFace        *face;
1091       PangoFontDescription *tmp_desc;
1092
1093       gtk_tree_model_get (GTK_TREE_MODEL (priv->filter_model), &iter,
1094                           FACE_COLUMN, &face,
1095                           -1);
1096
1097       tmp_desc = pango_font_face_describe (face);
1098       if (font_size_is_absolute)
1099         pango_font_description_set_absolute_size (tmp_desc, font_size);
1100       else
1101         pango_font_description_set_size (tmp_desc, font_size);
1102
1103       if (pango_font_description_equal (desc, tmp_desc))
1104         {
1105           GtkTreePath *path;
1106
1107           if (font_size)
1108             {
1109               if (font_size_is_absolute)
1110                 font_size *= PANGO_SCALE;
1111               gtk_spin_button_set_value (GTK_SPIN_BUTTON (priv->size_spin),
1112                                          font_size / PANGO_SCALE);
1113             }
1114
1115           path = gtk_tree_model_get_path (GTK_TREE_MODEL (priv->filter_model), &iter);
1116
1117           if (path)
1118             {
1119               gtk_tree_view_set_cursor (GTK_TREE_VIEW (priv->family_face_list),
1120                                         path,
1121                                         NULL,
1122                                         FALSE);
1123               gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (priv->family_face_list),
1124                                             path,
1125                                             NULL,
1126                                             FALSE,
1127                                             0.5,
1128                                             0.5);
1129               gtk_tree_path_free (path);
1130             }
1131
1132           found = TRUE;
1133         }
1134
1135       g_object_unref (face);
1136       pango_font_description_free (tmp_desc);
1137
1138       if (found)
1139         break;
1140     }
1141
1142 deselect:
1143   if (!found)
1144     {
1145       gtk_tree_selection_unselect_all
1146         (gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->family_face_list)));
1147     }
1148 }
1149
1150 static const gchar*
1151 gtk_font_chooser_widget_get_preview_text (GtkFontChooserWidget *fontchooser)
1152 {
1153   return fontchooser->priv->preview_text;
1154 }
1155
1156 static void
1157 gtk_font_chooser_widget_set_preview_text (GtkFontChooserWidget *fontchooser,
1158                                           const gchar          *text)
1159 {
1160   g_free (fontchooser->priv->preview_text);
1161   fontchooser->priv->preview_text = g_strdup (text);
1162
1163   populate_list (fontchooser,
1164                  GTK_TREE_VIEW (fontchooser->priv->family_face_list),
1165                  fontchooser->priv->model);
1166
1167   gtk_entry_set_text (GTK_ENTRY (fontchooser->priv->preview), text);
1168
1169   g_object_notify (G_OBJECT (fontchooser), "preview-text");
1170 }
1171
1172 static gboolean
1173 gtk_font_chooser_widget_get_show_preview_entry (GtkFontChooserWidget *fontchooser)
1174 {
1175   return fontchooser->priv->show_preview_entry;
1176 }
1177
1178 static void
1179 gtk_font_chooser_widget_set_show_preview_entry (GtkFontChooserWidget *fontchooser,
1180                                                 gboolean              show_preview_entry)
1181 {
1182   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
1183
1184   if (priv->show_preview_entry != show_preview_entry)
1185     {
1186       fontchooser->priv->show_preview_entry = show_preview_entry;
1187
1188       if (show_preview_entry)
1189         gtk_widget_show (fontchooser->priv->preview);
1190       else
1191         gtk_widget_hide (fontchooser->priv->preview);
1192
1193       g_object_notify (G_OBJECT (fontchooser), "show-preview-entry");
1194     }
1195 }
1196
1197 static void
1198 gtk_font_chooser_widget_set_filter_func (GtkFontChooser  *chooser,
1199                                          GtkFontFilterFunc filter,
1200                                          gpointer          data,
1201                                          GDestroyNotify    destroy)
1202 {
1203   GtkFontChooserWidget        *fontchooser = GTK_FONT_CHOOSER_WIDGET (chooser);
1204   GtkFontChooserWidgetPrivate *priv = fontchooser->priv;
1205
1206   if (priv->filter_data_destroy)
1207     priv->filter_data_destroy (priv->filter_data);
1208
1209   priv->filter_func = filter;
1210   priv->filter_data = data;
1211   priv->filter_data_destroy = destroy;
1212
1213   populate_list (fontchooser,
1214                  GTK_TREE_VIEW (priv->family_face_list),
1215                  priv->model);
1216 }
1217
1218 static void
1219 gtk_font_chooser_widget_iface_init (GtkFontChooserIface *iface)
1220 {
1221   iface->get_font_family = gtk_font_chooser_widget_get_family;
1222   iface->get_font_face = gtk_font_chooser_widget_get_face;
1223   iface->get_font_size = gtk_font_chooser_widget_get_size;
1224   iface->set_filter_func = gtk_font_chooser_widget_set_filter_func;
1225 }