gtkfontsel.c 53.7 KB
Newer Older
Cody Russell's avatar
Cody Russell committed
1
/* GTK - The GIMP Toolkit
Owen Taylor's avatar
Owen Taylor committed
2 3
 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
 *
4
 * Massively updated for Pango by Owen Taylor, May 2000
Owen Taylor's avatar
Owen Taylor committed
5 6 7 8 9
 * GtkFontSelection widget for Gtk+, by Damon Chaplin, May 1998.
 * Based on the GnomeFontSelector widget, by Elliot Lee, but major changes.
 * The GnomeFontSelector was derived from app/text_tool.c in the GIMP.
 *
 * This library is free software; you can redistribute it and/or
10
 * modify it under the terms of the GNU Lesser General Public
Owen Taylor's avatar
Owen Taylor committed
11 12 13 14 15 16
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17
 * Lesser General Public License for more details.
Owen Taylor's avatar
Owen Taylor committed
18
 *
19
 * You should have received a copy of the GNU Lesser General Public
Owen Taylor's avatar
Owen Taylor committed
20 21 22 23 24
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

25
/*
26
 * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
27 28 29 30 31
 * file for a list of people on the GTK+ Team.  See the ChangeLog
 * files for a list of changes.  These files are distributed with
 * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
 */

32
#include "config.h"
Owen Taylor's avatar
Owen Taylor committed
33
#include <stdlib.h>
34
#include <glib/gprintf.h>
Owen Taylor's avatar
Owen Taylor committed
35 36
#include <string.h>

37 38
#include <atk/atk.h>

39
#include "gdk/gdk.h"
Owen Taylor's avatar
Owen Taylor committed
40 41
#include "gdk/gdkkeysyms.h"

42 43
#include "gtkfontsel.h"

Owen Taylor's avatar
Owen Taylor committed
44
#include "gtkbutton.h"
45
#include "gtkcellrenderertext.h"
Owen Taylor's avatar
Owen Taylor committed
46 47 48 49 50
#include "gtkentry.h"
#include "gtkframe.h"
#include "gtkhbbox.h"
#include "gtkhbox.h"
#include "gtklabel.h"
51
#include "gtkliststore.h"
52
#include "gtkrc.h"
53
#include "gtkstock.h"
Owen Taylor's avatar
Owen Taylor committed
54
#include "gtktable.h"
55 56
#include "gtktreeselection.h"
#include "gtktreeview.h"
Owen Taylor's avatar
Owen Taylor committed
57
#include "gtkvbox.h"
58
#include "gtkscrolledwindow.h"
59
#include "gtkintl.h"
60
#include "gtkaccessible.h"
61
#include "gtkprivate.h"
Johan Dahlin's avatar
Johan Dahlin committed
62
#include "gtkbuildable.h"
63
#include "gtkalias.h"
Owen Taylor's avatar
Owen Taylor committed
64

65 66 67 68 69 70 71 72
/* We don't enable the font and style entries because they don't add
 * much in terms of visible effect and have a weird effect on keynav.
 * the Windows font selector has entries similarly positioned but they
 * act in conjunction with the associated lists to form a single focus
 * location.
 */
#undef INCLUDE_FONT_ENTRIES

Owen Taylor's avatar
Owen Taylor committed
73 74
/* This is the default text shown in the preview entry, though the user
   can set it. Remember that some fonts only have capital letters. */
75
#define PREVIEW_TEXT N_("abcdefghijk ABCDEFGHIJK")
Owen Taylor's avatar
Owen Taylor committed
76

Matthias Clasen's avatar
Matthias Clasen committed
77 78
#define DEFAULT_FONT_NAME "Sans 10"

Owen Taylor's avatar
Owen Taylor committed
79 80 81 82 83
/* This is the initial and maximum height of the preview entry (it expands
   when large font sizes are selected). Initial height is also the minimum. */
#define INITIAL_PREVIEW_HEIGHT 44
#define MAX_PREVIEW_HEIGHT 300

84
/* These are the sizes of the font, style & size lists. */
Owen Taylor's avatar
Owen Taylor committed
85
#define FONT_LIST_HEIGHT	136
Damon Chaplin's avatar
""  
Damon Chaplin committed
86 87
#define FONT_LIST_WIDTH		190
#define FONT_STYLE_LIST_WIDTH	170
Owen Taylor's avatar
Owen Taylor committed
88 89
#define FONT_SIZE_LIST_WIDTH	60

90
/* These are what we use as the standard font sizes, for the size list.
91 92
 */
static const guint16 font_sizes[] = {
93
  6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 20, 22, 24, 26, 28,
94
  32, 36, 40, 48, 56, 64, 72
Owen Taylor's avatar
Owen Taylor committed
95 96
};

97 98 99 100 101 102 103
enum {
   PROP_0,
   PROP_FONT_NAME,
   PROP_FONT,
   PROP_PREVIEW_TEXT
};

104 105 106 107 108 109 110 111 112 113 114 115 116 117 118

enum {
  FAMILY_COLUMN,
  FAMILY_NAME_COLUMN
};

enum {
  FACE_COLUMN,
  FACE_NAME_COLUMN
};

enum {
  SIZE_COLUMN
};

119 120 121 122 123 124 125 126
static void    gtk_font_selection_set_property       (GObject         *object,
						      guint            prop_id,
						      const GValue    *value,
						      GParamSpec      *pspec);
static void    gtk_font_selection_get_property       (GObject         *object,
						      guint            prop_id,
						      GValue          *value,
						      GParamSpec      *pspec);
127
static void    gtk_font_selection_finalize	     (GObject               *object);
Owen Taylor's avatar
Owen Taylor committed
128 129
static void    gtk_font_selection_screen_changed     (GtkWidget		    *widget,
						      GdkScreen             *previous_screen);
Owen Taylor's avatar
Owen Taylor committed
130 131

/* These are the callbacks & related functions. */
132
static void     gtk_font_selection_select_font           (GtkTreeSelection *selection,
133 134 135 136 137 138
							  gpointer          data);
static void     gtk_font_selection_show_available_fonts  (GtkFontSelection *fs);

static void     gtk_font_selection_show_available_styles (GtkFontSelection *fs);
static void     gtk_font_selection_select_best_style     (GtkFontSelection *fs,
							  gboolean          use_first);
139
static void     gtk_font_selection_select_style          (GtkTreeSelection *selection,
140 141 142
							  gpointer          data);

static void     gtk_font_selection_select_best_size      (GtkFontSelection *fs);
143 144
static void     gtk_font_selection_show_available_sizes  (GtkFontSelection *fs,
							  gboolean          first_time);
145
static void     gtk_font_selection_size_activate         (GtkWidget        *w,
146
							  gpointer          data);
147 148 149
static gboolean gtk_font_selection_size_focus_out        (GtkWidget        *w,
							  GdkEventFocus    *event,
							  gpointer          data);
150
static void     gtk_font_selection_select_size           (GtkTreeSelection *selection,
151 152
							  gpointer          data);

153
static void     gtk_font_selection_scroll_on_map         (GtkWidget        *w,
154 155
							  gpointer          data);

156 157
static void     gtk_font_selection_preview_changed       (GtkWidget        *entry,
							  GtkFontSelection *fontsel);
Owen Taylor's avatar
Owen Taylor committed
158 159

/* Misc. utility functions. */
Manish Singh's avatar
Manish Singh committed
160
static void    gtk_font_selection_load_font          (GtkFontSelection *fs);
Owen Taylor's avatar
Owen Taylor committed
161 162
static void    gtk_font_selection_update_preview     (GtkFontSelection *fs);

163 164
static GdkFont* gtk_font_selection_get_font_internal (GtkFontSelection *fontsel);

Matthias Clasen's avatar
Matthias Clasen committed
165
G_DEFINE_TYPE (GtkFontSelection, gtk_font_selection, GTK_TYPE_VBOX)
Owen Taylor's avatar
Owen Taylor committed
166 167

static void
168
gtk_font_selection_class_init (GtkFontSelectionClass *klass)
Owen Taylor's avatar
Owen Taylor committed
169
{
170
  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
171
  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
172
  
173 174
  gobject_class->set_property = gtk_font_selection_set_property;
  gobject_class->get_property = gtk_font_selection_get_property;
175

Owen Taylor's avatar
Owen Taylor committed
176
  widget_class->screen_changed = gtk_font_selection_screen_changed;
177 178 179
   
  g_object_class_install_property (gobject_class,
                                   PROP_FONT_NAME,
180
                                   g_param_spec_string ("font-name",
181
                                                        P_("Font name"),
Matthias Clasen's avatar
Matthias Clasen committed
182 183
                                                        P_("The string that represents this font"),
                                                        DEFAULT_FONT_NAME,
184
                                                        GTK_PARAM_READWRITE));
185 186 187
  g_object_class_install_property (gobject_class,
				   PROP_FONT,
				   g_param_spec_boxed ("font",
188 189
						       P_("Font"),
						       P_("The GdkFont that is currently selected"),
190
						       GDK_TYPE_FONT,
191
						       GTK_PARAM_READABLE));
192 193
  g_object_class_install_property (gobject_class,
                                   PROP_PREVIEW_TEXT,
194
                                   g_param_spec_string ("preview-text",
195 196
                                                        P_("Preview text"),
                                                        P_("The text to display in order to demonstrate the selected font"),
Matthias Clasen's avatar
Matthias Clasen committed
197
                                                        _(PREVIEW_TEXT),
198
                                                        GTK_PARAM_READWRITE));
199
  gobject_class->finalize = gtk_font_selection_finalize;
Owen Taylor's avatar
Owen Taylor committed
200 201
}

202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237
static void 
gtk_font_selection_set_property (GObject         *object,
				 guint            prop_id,
				 const GValue    *value,
				 GParamSpec      *pspec)
{
  GtkFontSelection *fontsel;

  fontsel = GTK_FONT_SELECTION (object);

  switch (prop_id)
    {
    case PROP_FONT_NAME:
      gtk_font_selection_set_font_name (fontsel, g_value_get_string (value));
      break;
    case PROP_PREVIEW_TEXT:
      gtk_font_selection_set_preview_text (fontsel, g_value_get_string (value));
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }
}

static void gtk_font_selection_get_property (GObject         *object,
					     guint            prop_id,
					     GValue          *value,
					     GParamSpec      *pspec)
{
  GtkFontSelection *fontsel;

  fontsel = GTK_FONT_SELECTION (object);

  switch (prop_id)
    {
    case PROP_FONT_NAME:
238
      g_value_take_string (value, gtk_font_selection_get_font_name (fontsel));
239 240
      break;
    case PROP_FONT:
Matthias Clasen's avatar
Matthias Clasen committed
241
      g_value_set_boxed (value, gtk_font_selection_get_font_internal (fontsel));
242 243 244 245 246 247 248 249 250 251
      break;
    case PROP_PREVIEW_TEXT:
      g_value_set_string (value, gtk_font_selection_get_preview_text (fontsel));
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }
}

252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273
/* Handles key press events on the lists, so that we can trap Enter to
 * activate the default button on our own.
 */
static gboolean
list_row_activated (GtkWidget *widget)
{
  GtkWindow *window;
  
  window = GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (widget)));
  if (!GTK_WIDGET_TOPLEVEL (window))
    window = NULL;
  
  if (window
      && widget != window->default_widget
      && !(widget == window->focus_widget &&
	   (!window->default_widget || !GTK_WIDGET_SENSITIVE (window->default_widget))))
    {
      gtk_window_activate_default (window);
    }
  
  return TRUE;
}
274

Owen Taylor's avatar
Owen Taylor committed
275
static void
276
gtk_font_selection_init (GtkFontSelection *fontsel)
Owen Taylor's avatar
Owen Taylor committed
277
{
278
  GtkWidget *scrolled_win;
279 280
  GtkWidget *text_box;
  GtkWidget *table, *label;
281
  GtkWidget *font_label, *style_label;
282
  GtkWidget *vbox;
283 284 285
  GtkListStore *model;
  GtkTreeViewColumn *column;
  GList *focus_chain = NULL;
286
  AtkObject *atk_obj;
287

288 289
  gtk_widget_push_composite_child ();

290
  gtk_box_set_spacing (GTK_BOX (fontsel), 12);
291
  fontsel->size = 12 * PANGO_SCALE;
292
  
Owen Taylor's avatar
Owen Taylor committed
293 294 295
  /* Create the table of font, style & size. */
  table = gtk_table_new (3, 3, FALSE);
  gtk_widget_show (table);
296 297
  gtk_table_set_row_spacings (GTK_TABLE (table), 6);
  gtk_table_set_col_spacings (GTK_TABLE (table), 12);
298
  gtk_box_pack_start (GTK_BOX (fontsel), table, TRUE, TRUE, 0);
299

Manish Singh's avatar
Manish Singh committed
300
#ifdef INCLUDE_FONT_ENTRIES
301
  fontsel->font_entry = gtk_entry_new ();
Manish Singh's avatar
Manish Singh committed
302 303
  gtk_editable_set_editable (GTK_EDITABLE (fontsel->font_entry), FALSE);
  gtk_widget_set_size_request (fontsel->font_entry, 20, -1);
304
  gtk_widget_show (fontsel->font_entry);
Owen Taylor's avatar
Owen Taylor committed
305 306
  gtk_table_attach (GTK_TABLE (table), fontsel->font_entry, 0, 1, 1, 2,
		    GTK_FILL, 0, 0, 0);
307 308
  
  fontsel->font_style_entry = gtk_entry_new ();
Manish Singh's avatar
Manish Singh committed
309 310
  gtk_editable_set_editable (GTK_EDITABLE (fontsel->font_style_entry), FALSE);
  gtk_widget_set_size_request (fontsel->font_style_entry, 20, -1);
311
  gtk_widget_show (fontsel->font_style_entry);
Owen Taylor's avatar
Owen Taylor committed
312 313
  gtk_table_attach (GTK_TABLE (table), fontsel->font_style_entry, 1, 2, 1, 2,
		    GTK_FILL, 0, 0, 0);
314
#endif /* INCLUDE_FONT_ENTRIES */
315 316
  
  fontsel->size_entry = gtk_entry_new ();
Manish Singh's avatar
Manish Singh committed
317
  gtk_widget_set_size_request (fontsel->size_entry, 20, -1);
Owen Taylor's avatar
Owen Taylor committed
318 319 320
  gtk_widget_show (fontsel->size_entry);
  gtk_table_attach (GTK_TABLE (table), fontsel->size_entry, 2, 3, 1, 2,
		    GTK_FILL, 0, 0, 0);
Manish Singh's avatar
Manish Singh committed
321 322 323
  g_signal_connect (fontsel->size_entry, "activate",
		    G_CALLBACK (gtk_font_selection_size_activate),
		    fontsel);
324
  g_signal_connect_after (fontsel->size_entry, "focus-out-event",
Manish Singh's avatar
Manish Singh committed
325 326
			  G_CALLBACK (gtk_font_selection_size_focus_out),
			  fontsel);
327
  
328 329 330 331
  font_label = gtk_label_new_with_mnemonic (_("_Family:"));
  gtk_misc_set_alignment (GTK_MISC (font_label), 0.0, 0.5);
  gtk_widget_show (font_label);
  gtk_table_attach (GTK_TABLE (table), font_label, 0, 1, 0, 1,
332
		    GTK_FILL, 0, 0, 0);  
333 334 335 336 337

  style_label = gtk_label_new_with_mnemonic (_("_Style:"));
  gtk_misc_set_alignment (GTK_MISC (style_label), 0.0, 0.5);
  gtk_widget_show (style_label);
  gtk_table_attach (GTK_TABLE (table), style_label, 1, 2, 0, 1,
338
		    GTK_FILL, 0, 0, 0);
339
  
340 341 342 343 344 345 346 347 348
  label = gtk_label_new_with_mnemonic (_("Si_ze:"));
  gtk_label_set_mnemonic_widget (GTK_LABEL (label),
                                 fontsel->size_entry);
  gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
  gtk_widget_show (label);
  gtk_table_attach (GTK_TABLE (table), label, 2, 3, 0, 1,
		    GTK_FILL, 0, 0, 0);
  
  
349 350 351 352 353 354 355 356
  /* Create the lists  */

  model = gtk_list_store_new (2,
			      G_TYPE_OBJECT,  /* FAMILY_COLUMN */
			      G_TYPE_STRING); /* FAMILY_NAME_COLUMN */
  fontsel->family_list = gtk_tree_view_new_with_model (GTK_TREE_MODEL (model));
  g_object_unref (model);

357
  g_signal_connect (fontsel->family_list, "row-activated",
358 359
		    G_CALLBACK (list_row_activated), fontsel);

360 361 362 363 364 365 366 367 368 369 370 371 372
  column = gtk_tree_view_column_new_with_attributes ("Family",
						     gtk_cell_renderer_text_new (),
						     "text", FAMILY_NAME_COLUMN,
						     NULL);
  gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
  gtk_tree_view_append_column (GTK_TREE_VIEW (fontsel->family_list), column);

  gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (fontsel->family_list), FALSE);
  gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (fontsel->family_list)),
			       GTK_SELECTION_BROWSE);
  
  gtk_label_set_mnemonic_widget (GTK_LABEL (font_label), fontsel->family_list);

373
  scrolled_win = gtk_scrolled_window_new (NULL, NULL);
374
  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_win), GTK_SHADOW_IN);
Manish Singh's avatar
Manish Singh committed
375 376
  gtk_widget_set_size_request (scrolled_win,
			       FONT_LIST_WIDTH, FONT_LIST_HEIGHT);
377
  gtk_container_add (GTK_CONTAINER (scrolled_win), fontsel->family_list);
378 379
  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
				  GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
380
  gtk_widget_show (fontsel->family_list);
381
  gtk_widget_show (scrolled_win);
382

383
  gtk_table_attach (GTK_TABLE (table), scrolled_win, 0, 1, 1, 3,
Owen Taylor's avatar
Owen Taylor committed
384 385
		    GTK_EXPAND | GTK_FILL,
		    GTK_EXPAND | GTK_FILL, 0, 0);
386 387 388 389 390 391 392
  focus_chain = g_list_append (focus_chain, scrolled_win);
  
  model = gtk_list_store_new (2,
			      G_TYPE_OBJECT,  /* FACE_COLUMN */
			      G_TYPE_STRING); /* FACE_NAME_COLUMN */
  fontsel->face_list = gtk_tree_view_new_with_model (GTK_TREE_MODEL (model));
  g_object_unref (model);
393 394
  g_signal_connect (fontsel->face_list, "row-activated",
		    G_CALLBACK (list_row_activated), fontsel);
395 396 397 398 399 400 401 402 403 404 405 406 407

  gtk_label_set_mnemonic_widget (GTK_LABEL (style_label), fontsel->face_list);

  column = gtk_tree_view_column_new_with_attributes ("Face",
						     gtk_cell_renderer_text_new (),
						     "text", FACE_NAME_COLUMN,
						     NULL);
  gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
  gtk_tree_view_append_column (GTK_TREE_VIEW (fontsel->face_list), column);

  gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (fontsel->face_list), FALSE);
  gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (fontsel->face_list)),
			       GTK_SELECTION_BROWSE);
408
  
409
  scrolled_win = gtk_scrolled_window_new (NULL, NULL);
410
  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_win), GTK_SHADOW_IN);
Manish Singh's avatar
Manish Singh committed
411 412
  gtk_widget_set_size_request (scrolled_win,
			       FONT_STYLE_LIST_WIDTH, FONT_LIST_HEIGHT);
413
  gtk_container_add (GTK_CONTAINER (scrolled_win), fontsel->face_list);
414 415
  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
				  GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
416
  gtk_widget_show (fontsel->face_list);
417
  gtk_widget_show (scrolled_win);
418
  gtk_table_attach (GTK_TABLE (table), scrolled_win, 1, 2, 1, 3,
Owen Taylor's avatar
Owen Taylor committed
419 420
		    GTK_EXPAND | GTK_FILL,
		    GTK_EXPAND | GTK_FILL, 0, 0);
421 422 423 424 425 426 427
  focus_chain = g_list_append (focus_chain, scrolled_win);
  
  focus_chain = g_list_append (focus_chain, fontsel->size_entry);

  model = gtk_list_store_new (1, G_TYPE_INT);
  fontsel->size_list = gtk_tree_view_new_with_model (GTK_TREE_MODEL (model));
  g_object_unref (model);
428 429
  g_signal_connect (fontsel->size_list, "row-activated",
		    G_CALLBACK (list_row_activated), fontsel);
430 431 432 433 434 435 436 437 438 439 440

  column = gtk_tree_view_column_new_with_attributes ("Size",
						     gtk_cell_renderer_text_new (),
						     "text", SIZE_COLUMN,
						     NULL);
  gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
  gtk_tree_view_append_column (GTK_TREE_VIEW (fontsel->size_list), column);

  gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (fontsel->size_list), FALSE);
  gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (fontsel->size_list)),
			       GTK_SELECTION_BROWSE);
441
  
442
  scrolled_win = gtk_scrolled_window_new (NULL, NULL);
443 444
  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_win), GTK_SHADOW_IN);
  gtk_container_add (GTK_CONTAINER (scrolled_win), fontsel->size_list);
Manish Singh's avatar
Manish Singh committed
445
  gtk_widget_set_size_request (scrolled_win, -1, FONT_LIST_HEIGHT);
446
  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
447 448
				  GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
  gtk_widget_show (fontsel->size_list);
449
  gtk_widget_show (scrolled_win);
450
  gtk_table_attach (GTK_TABLE (table), scrolled_win, 2, 3, 2, 3,
451 452 453 454 455
		    GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
  focus_chain = g_list_append (focus_chain, scrolled_win);

  gtk_container_set_focus_chain (GTK_CONTAINER (table), focus_chain);
  g_list_free (focus_chain);
456
  
457 458 459
  /* Insert the fonts. */
  g_signal_connect (gtk_tree_view_get_selection (GTK_TREE_VIEW (fontsel->family_list)), "changed",
		    G_CALLBACK (gtk_font_selection_select_font), fontsel);
460

Manish Singh's avatar
Manish Singh committed
461 462 463
  g_signal_connect_after (fontsel->family_list, "map",
			  G_CALLBACK (gtk_font_selection_scroll_on_map),
			  fontsel);
464
  
465 466
  g_signal_connect (gtk_tree_view_get_selection (GTK_TREE_VIEW (fontsel->face_list)), "changed",
		    G_CALLBACK (gtk_font_selection_select_style), fontsel);
467

468 469
  g_signal_connect (gtk_tree_view_get_selection (GTK_TREE_VIEW (fontsel->size_list)), "changed",
		    G_CALLBACK (gtk_font_selection_select_size), fontsel);
470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485
  atk_obj = gtk_widget_get_accessible (fontsel->size_list);
  if (GTK_IS_ACCESSIBLE (atk_obj))
    {
      /* Accessibility support is enabled.
       * Make the label ATK_RELATON_LABEL_FOR for the size list as well.
       */
      AtkObject *atk_label;
      AtkRelationSet *relation_set;
      AtkRelation *relation;
      AtkObject *obj_array[1];

      atk_label = gtk_widget_get_accessible (label);
      relation_set = atk_object_ref_relation_set (atk_obj);
      relation = atk_relation_set_get_relation_by_type (relation_set, ATK_RELATION_LABELLED_BY);
      if (relation)
        {
486
          atk_relation_add_target (relation, atk_label);
487 488 489 490 491 492 493 494 495 496 497 498 499
        }
      else 
        {
          obj_array[0] = atk_label;
          relation = atk_relation_new (obj_array, 1, ATK_RELATION_LABELLED_BY);
          atk_relation_set_add (relation_set, relation);
        }
      g_object_unref (relation_set);

      relation_set = atk_object_ref_relation_set (atk_label);
      relation = atk_relation_set_get_relation_by_type (relation_set, ATK_RELATION_LABEL_FOR);
      if (relation)
        {
500
          atk_relation_add_target (relation, atk_obj);
501 502 503 504 505 506 507 508 509 510
        }
      else 
        {
          obj_array[0] = atk_obj;
          relation = atk_relation_new (obj_array, 1, ATK_RELATION_LABEL_FOR);
          atk_relation_set_add (relation_set, relation);
        }
      g_object_unref (relation_set);
    }    
      
511

512 513 514 515
  vbox = gtk_vbox_new (FALSE, 6);
  gtk_widget_show (vbox);
  gtk_box_pack_start (GTK_BOX (fontsel), vbox, FALSE, TRUE, 0);
  
Owen Taylor's avatar
Owen Taylor committed
516
  /* create the text entry widget */
517
  label = gtk_label_new_with_mnemonic (_("_Preview:"));
518
  gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
519
  gtk_widget_show (label);
520
  gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, TRUE, 0);
521
  
Owen Taylor's avatar
Owen Taylor committed
522 523
  text_box = gtk_hbox_new (FALSE, 0);
  gtk_widget_show (text_box);
524
  gtk_box_pack_start (GTK_BOX (vbox), text_box, FALSE, TRUE, 0);
525
  
Owen Taylor's avatar
Owen Taylor committed
526
  fontsel->preview_entry = gtk_entry_new ();
527
  gtk_label_set_mnemonic_widget (GTK_LABEL (label), fontsel->preview_entry);
Matthias Clasen's avatar
Matthias Clasen committed
528
  gtk_entry_set_text (GTK_ENTRY (fontsel->preview_entry), _(PREVIEW_TEXT));
529
  
Owen Taylor's avatar
Owen Taylor committed
530
  gtk_widget_show (fontsel->preview_entry);
Manish Singh's avatar
Manish Singh committed
531 532 533 534
  g_signal_connect (fontsel->preview_entry, "changed",
		    G_CALLBACK (gtk_font_selection_preview_changed), fontsel);
  gtk_widget_set_size_request (fontsel->preview_entry,
			       -1, INITIAL_PREVIEW_HEIGHT);
Owen Taylor's avatar
Owen Taylor committed
535 536
  gtk_box_pack_start (GTK_BOX (text_box), fontsel->preview_entry,
		      TRUE, TRUE, 0);
537

538
  gtk_widget_pop_composite_child();
Owen Taylor's avatar
Owen Taylor committed
539 540 541
}

GtkWidget *
Matthias Clasen's avatar
Matthias Clasen committed
542
gtk_font_selection_new (void)
Owen Taylor's avatar
Owen Taylor committed
543 544
{
  GtkFontSelection *fontsel;
545
  
Manish Singh's avatar
Manish Singh committed
546
  fontsel = g_object_new (GTK_TYPE_FONT_SELECTION, NULL);
547
  
Owen Taylor's avatar
Owen Taylor committed
548 549 550 551
  return GTK_WIDGET (fontsel);
}

static void
552
gtk_font_selection_finalize (GObject *object)
Owen Taylor's avatar
Owen Taylor committed
553 554
{
  GtkFontSelection *fontsel;
555
  
Owen Taylor's avatar
Owen Taylor committed
556
  g_return_if_fail (GTK_IS_FONT_SELECTION (object));
557
  
Owen Taylor's avatar
Owen Taylor committed
558
  fontsel = GTK_FONT_SELECTION (object);
559

Owen Taylor's avatar
Owen Taylor committed
560 561
  if (fontsel->font)
    gdk_font_unref (fontsel->font);
562 563

  G_OBJECT_CLASS (gtk_font_selection_parent_class)->finalize (object);
Owen Taylor's avatar
Owen Taylor committed
564 565
}

566
static void
Owen Taylor's avatar
Owen Taylor committed
567 568
gtk_font_selection_screen_changed (GtkWidget *widget,
				   GdkScreen *previous_screen)
569
{
Owen Taylor's avatar
Owen Taylor committed
570
  GtkFontSelection *fontsel = GTK_FONT_SELECTION (widget);
571 572 573 574 575 576 577 578 579

  if (gtk_widget_has_screen (GTK_WIDGET (fontsel)))
    {
      gtk_font_selection_show_available_fonts (fontsel);
      gtk_font_selection_show_available_sizes (fontsel, TRUE);
      gtk_font_selection_show_available_styles (fontsel);
    }
}

580 581 582 583
static void
gtk_font_selection_preview_changed (GtkWidget        *entry,
				    GtkFontSelection *fontsel)
{
584
  g_object_notify (G_OBJECT (fontsel), "preview-text");
585
}
Owen Taylor's avatar
Owen Taylor committed
586

587 588 589 590 591 592 593 594 595 596 597 598 599 600 601
static void
scroll_to_selection (GtkTreeView *tree_view)
{
  GtkTreeSelection *selection = gtk_tree_view_get_selection (tree_view);
  GtkTreeModel *model;
  GtkTreeIter iter;

  if (gtk_tree_selection_get_selected (selection, &model, &iter))
    {
      GtkTreePath *path = gtk_tree_model_get_path (model, &iter);
      gtk_tree_view_scroll_to_cell (tree_view, path, NULL, TRUE, 0.5, 0.5);
      gtk_tree_path_free (path);
    }
}

602 603 604 605 606 607 608
static void
set_cursor_to_iter (GtkTreeView *view,
		    GtkTreeIter *iter)
{
  GtkTreeModel *model = gtk_tree_view_get_model (view);
  GtkTreePath *path = gtk_tree_model_get_path (model, iter);
  
Matthias Clasen's avatar
Matthias Clasen committed
609
  gtk_tree_view_set_cursor (view, path, NULL, FALSE);
610 611 612 613

  gtk_tree_path_free (path);
}

614
/* This is called when the list is mapped. Here we scroll to the current
Owen Taylor's avatar
Owen Taylor committed
615 616
   font if necessary. */
static void
617 618
gtk_font_selection_scroll_on_map (GtkWidget		*widget,
                                  gpointer		 data)
Owen Taylor's avatar
Owen Taylor committed
619 620
{
  GtkFontSelection *fontsel;
621
  
Owen Taylor's avatar
Owen Taylor committed
622
#ifdef FONTSEL_DEBUG
623
  g_message ("In expose_list\n");
Owen Taylor's avatar
Owen Taylor committed
624
#endif
625
  fontsel = GTK_FONT_SELECTION (data);
626
  
627 628
  /* Try to scroll the font family list to the selected item */
  scroll_to_selection (GTK_TREE_VIEW (fontsel->family_list));
629
      
630 631
  /* Try to scroll the font family list to the selected item */
  scroll_to_selection (GTK_TREE_VIEW (fontsel->face_list));
632
      
633 634
  /* Try to scroll the font family list to the selected item */
  scroll_to_selection (GTK_TREE_VIEW (fontsel->size_list));
Owen Taylor's avatar
Owen Taylor committed
635 636
}

637
/* This is called when a family is selected in the list. */
Damon Chaplin's avatar
""  
Damon Chaplin committed
638
static void
639 640
gtk_font_selection_select_font (GtkTreeSelection *selection,
				gpointer          data)
Damon Chaplin's avatar
""  
Damon Chaplin committed
641 642
{
  GtkFontSelection *fontsel;
643 644
  GtkTreeModel *model;
  GtkTreeIter iter;
645
#ifdef INCLUDE_FONT_ENTRIES
646
  const gchar *family_name;
647 648
#endif

Damon Chaplin's avatar
""  
Damon Chaplin committed
649 650
  fontsel = GTK_FONT_SELECTION (data);

651
  if (gtk_tree_selection_get_selected (selection, &model, &iter))
Damon Chaplin's avatar
""  
Damon Chaplin committed
652
    {
653 654 655 656
      PangoFontFamily *family;
      
      gtk_tree_model_get (model, &iter, FAMILY_COLUMN, &family, -1);
      if (fontsel->family != family)
Damon Chaplin's avatar
""  
Damon Chaplin committed
657
	{
658
	  fontsel->family = family;
659
	  
660
#ifdef INCLUDE_FONT_ENTRIES
661
	  family_name = pango_font_family_get_name (fontsel->family);
Havoc Pennington's avatar
Havoc Pennington committed
662
	  gtk_entry_set_text (GTK_ENTRY (fontsel->font_entry), family_name);
663
#endif
664 665 666
	  
	  gtk_font_selection_show_available_styles (fontsel);
	  gtk_font_selection_select_best_style (fontsel, TRUE);
Damon Chaplin's avatar
""  
Damon Chaplin committed
667
	}
668 669

      g_object_unref (family);
Damon Chaplin's avatar
""  
Damon Chaplin committed
670 671 672
    }
}

673
static int
674
cmp_families (const void *a, const void *b)
675
{
676 677 678
  const char *a_name = pango_font_family_get_name (*(PangoFontFamily **)a);
  const char *b_name = pango_font_family_get_name (*(PangoFontFamily **)b);
  
679
  return g_utf8_collate (a_name, b_name);
680
}
Damon Chaplin's avatar
""  
Damon Chaplin committed
681

Owen Taylor's avatar
Owen Taylor committed
682
static void
683
gtk_font_selection_show_available_fonts (GtkFontSelection *fontsel)
Owen Taylor's avatar
Owen Taylor committed
684
{
685 686 687
  GtkListStore *model;
  PangoFontFamily **families;
  PangoFontFamily *match_family = NULL;
688
  gint n_families, i;
689 690 691 692
  GtkTreeIter match_row;
  
  model = GTK_LIST_STORE (gtk_tree_view_get_model (GTK_TREE_VIEW (fontsel->family_list)));
  
693
  pango_context_list_families (gtk_widget_get_pango_context (GTK_WIDGET (fontsel)),
694 695
			       &families, &n_families);
  qsort (families, n_families, sizeof (PangoFontFamily *), cmp_families);
696

697
  gtk_list_store_clear (model);
698 699 700

  for (i=0; i<n_families; i++)
    {
701 702 703 704 705 706 707 708
      const gchar *name = pango_font_family_get_name (families[i]);
      GtkTreeIter iter;

      gtk_list_store_append (model, &iter);
      gtk_list_store_set (model, &iter,
			  FAMILY_COLUMN, families[i],
			  FAMILY_NAME_COLUMN, name,
			  -1);
709
      
710
      if (i == 0 || !g_ascii_strcasecmp (name, "sans"))
711 712 713 714
	{
	  match_family = families[i];
	  match_row = iter;
	}
715
    }
716

717 718 719
  fontsel->family = match_family;
  if (match_family)
    {
720
      set_cursor_to_iter (GTK_TREE_VIEW (fontsel->family_list), &match_row);
Manish Singh's avatar
Manish Singh committed
721
#ifdef INCLUDE_FONT_ENTRIES
722 723
      gtk_entry_set_text (GTK_ENTRY (fontsel->font_entry), 
			  pango_font_family_get_name (match_family));
724
#endif /* INCLUDE_FONT_ENTRIES */
725
    }
726

727
  g_free (families);
728
}
Owen Taylor's avatar
Owen Taylor committed
729

730 731 732
static int
compare_font_descriptions (const PangoFontDescription *a, const PangoFontDescription *b)
{
733
  int val = strcmp (pango_font_description_get_family (a), pango_font_description_get_family (b));
734 735 736
  if (val != 0)
    return val;

737 738
  if (pango_font_description_get_weight (a) != pango_font_description_get_weight (b))
    return pango_font_description_get_weight (a) - pango_font_description_get_weight (b);
739

740 741
  if (pango_font_description_get_style (a) != pango_font_description_get_style (b))
    return pango_font_description_get_style (a) - pango_font_description_get_style (b);
742
  
743 744
  if (pango_font_description_get_stretch (a) != pango_font_description_get_stretch (b))
    return pango_font_description_get_stretch (a) - pango_font_description_get_stretch (b);
745

746 747
  if (pango_font_description_get_variant (a) != pango_font_description_get_variant (b))
    return pango_font_description_get_variant (a) - pango_font_description_get_variant (b);
748 749 750 751 752

  return 0;
}

static int
753
faces_sort_func (const void *a, const void *b)
754
{
755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773
  PangoFontDescription *desc_a = pango_font_face_describe (*(PangoFontFace **)a);
  PangoFontDescription *desc_b = pango_font_face_describe (*(PangoFontFace **)b);
  
  int ord = compare_font_descriptions (desc_a, desc_b);

  pango_font_description_free (desc_a);
  pango_font_description_free (desc_b);

  return ord;
}

static gboolean
font_description_style_equal (const PangoFontDescription *a,
			      const PangoFontDescription *b)
{
  return (pango_font_description_get_weight (a) == pango_font_description_get_weight (b) &&
	  pango_font_description_get_style (a) == pango_font_description_get_style (b) &&
	  pango_font_description_get_stretch (a) == pango_font_description_get_stretch (b) &&
	  pango_font_description_get_variant (a) == pango_font_description_get_variant (b));
774
}
Owen Taylor's avatar
Owen Taylor committed
775

776
/* This fills the font style list with all the possible style combinations
Owen Taylor's avatar
Owen Taylor committed
777 778 779 780
   for the current font family. */
static void
gtk_font_selection_show_available_styles (GtkFontSelection *fontsel)
{
781
  gint n_faces, i;
782
  PangoFontFace **faces;
783
  PangoFontDescription *old_desc;
784 785 786 787 788 789
  GtkListStore *model;
  GtkTreeIter match_row;
  PangoFontFace *match_face = NULL;
  
  model = GTK_LIST_STORE (gtk_tree_view_get_model (GTK_TREE_VIEW (fontsel->face_list)));
  
790 791 792 793 794
  if (fontsel->face)
    old_desc = pango_font_face_describe (fontsel->face);
  else
    old_desc= NULL;

795 796
  pango_font_family_list_faces (fontsel->family, &faces, &n_faces);
  qsort (faces, n_faces, sizeof (PangoFontFace *), faces_sort_func);
797

798
  gtk_list_store_clear (model);
799

800
  for (i=0; i < n_faces; i++)
Owen Taylor's avatar
Owen Taylor committed
801
    {
802 803
      GtkTreeIter iter;
      const gchar *str = pango_font_face_get_face_name (faces[i]);
804

805 806 807 808 809 810 811
      gtk_list_store_append (model, &iter);
      gtk_list_store_set (model, &iter,
			  FACE_COLUMN, faces[i],
			  FACE_NAME_COLUMN, str,
			  -1);

      if (i == 0)
812
	{
813 814 815 816 817 818
	  match_row = iter;
	  match_face = faces[i];
	}
      else if (old_desc)
	{
	  PangoFontDescription *tmp_desc = pango_font_face_describe (faces[i]);
819 820
	  
	  if (font_description_style_equal (tmp_desc, old_desc))
821 822 823 824
	    {
	      match_row = iter;
	      match_face = faces[i];
	    }
825
      
826 827
	  pango_font_description_free (tmp_desc);
	}
Owen Taylor's avatar
Owen Taylor committed
828
    }
829

830 831 832
  if (old_desc)
    pango_font_description_free (old_desc);

833 834
  fontsel->face = match_face;
  if (match_face)
835
    {
Manish Singh's avatar
Manish Singh committed
836
#ifdef INCLUDE_FONT_ENTRIES
837 838
      const gchar *str = pango_font_face_get_face_name (fontsel->face);

839
      gtk_entry_set_text (GTK_ENTRY (fontsel->font_style_entry), str);
840
#endif      
841
      set_cursor_to_iter (GTK_TREE_VIEW (fontsel->face_list), &match_row);
842
    }
843 844

  g_free (faces);
Owen Taylor's avatar
Owen Taylor committed
845 846 847 848 849 850 851 852
}

/* This selects a style when the user selects a font. It just uses the first
   available style at present. I was thinking of trying to maintain the
   selected style, e.g. bold italic, when the user selects different fonts.
   However, the interface is so easy to use now I'm not sure it's worth it.
   Note: This will load a font. */
static void
853 854
gtk_font_selection_select_best_style (GtkFontSelection *fontsel,
				      gboolean	        use_first)
Owen Taylor's avatar
Owen Taylor committed
855
{
856 857 858 859 860
  GtkTreeIter iter;
  GtkTreeModel *model;

  model = gtk_tree_view_get_model (GTK_TREE_VIEW (fontsel->face_list));

861
  if (gtk_tree_model_get_iter_first (model, &iter))
862
    {
863
      set_cursor_to_iter (GTK_TREE_VIEW (fontsel->face_list), &iter);
864 865 866 867
      scroll_to_selection (GTK_TREE_VIEW (fontsel->face_list));
    }

  gtk_font_selection_show_available_sizes (fontsel, FALSE);
Owen Taylor's avatar
Owen Taylor committed
868 869 870 871 872 873
  gtk_font_selection_select_best_size (fontsel);
}


/* This is called when a style is selected in the list. */
static void
874 875
gtk_font_selection_select_style (GtkTreeSelection *selection,
				 gpointer          data)
Owen Taylor's avatar
Owen Taylor committed
876
{
877
  GtkFontSelection *fontsel = GTK_FONT_SELECTION (data);
878 879
  GtkTreeModel *model;
  GtkTreeIter iter;
880
  
881
  if (gtk_tree_selection_get_selected (selection, &model, &iter))
882
    {
883 884 885 886 887 888
      PangoFontFace *face;
      
      gtk_tree_model_get (model, &iter, FACE_COLUMN, &face, -1);
      fontsel->face = face;

      g_object_unref (face);
889 890
    }

891
  gtk_font_selection_show_available_sizes (fontsel, FALSE);
892
  gtk_font_selection_select_best_size (fontsel);
893 894
}

895
static void
896 897
gtk_font_selection_show_available_sizes (GtkFontSelection *fontsel,
					 gboolean          first_time)
898
{
899
  gint i;
900
  GtkListStore *model;
901
  gchar buffer[128];
902 903
  gchar *p;
      
904
  model = GTK_LIST_STORE (gtk_tree_view_get_model (GTK_TREE_VIEW (fontsel->size_list)));
905

906
  /* Insert the standard font sizes */
907 908 909
  if (first_time)
    {
      gtk_list_store_clear (model);
910

911 912 913 914 915 916 917 918
      for (i = 0; i < G_N_ELEMENTS (font_sizes); i++)
	{
	  GtkTreeIter iter;
	  
	  gtk_list_store_append (model, &iter);
	  gtk_list_store_set (model, &iter, SIZE_COLUMN, font_sizes[i], -1);
	  
	  if (font_sizes[i] * PANGO_SCALE == fontsel->size)
919
	    set_cursor_to_iter (GTK_TREE_VIEW (fontsel->size_list), &iter);
920 921 922
	}
    }
  else
923
    {
924
      GtkTreeIter iter;
925
      gboolean found = FALSE;
926
      
927
      gtk_tree_model_get_iter_first (GTK_TREE_MODEL (model), &iter);
928
      for (i = 0; i < G_N_ELEMENTS (font_sizes) && !found; i++)
929 930
	{
	  if (font_sizes[i] * PANGO_SCALE == fontsel->size)
931 932 933 934
	    {
	      set_cursor_to_iter (GTK_TREE_VIEW (fontsel->size_list), &iter);
	      found = TRUE;
	    }
935 936 937

	  gtk_tree_model_iter_next (GTK_TREE_MODEL (model), &iter);
	}
938 939 940 941 942 943 944 945 946 947 948

      if (!found)
	{
	  GtkTreeSelection *selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (fontsel->size_list));
	  gtk_tree_selection_unselect_all (selection);
	}
    }

  /* Set the entry to the new size, rounding to 1 digit,
   * trimming of trailing 0's and a trailing period
   */
949
  g_snprintf (buffer, sizeof (buffer), "%.1f", fontsel->size / (1.0 * PANGO_SCALE));
950 951 952 953 954 955 956 957
  if (strchr (buffer, '.'))
    {
      p = buffer + strlen (buffer) - 1;
      while (*p == '0')
	p--;
      if (*p == '.')
	p--;
      p[1] = '\0';
958 959
    }

960 961 962
  /* Compare, to avoid moving the cursor unecessarily */
  if (strcmp (gtk_entry_get_text (GTK_ENTRY (fontsel->size_entry)), buffer) != 0)
    gtk_entry_set_text (GTK_ENTRY (fontsel->size_entry), buffer);
963 964
}

Owen Taylor's avatar
Owen Taylor committed
965
static void
966
gtk_font_selection_select_best_size (GtkFontSelection *fontsel)
Owen Taylor's avatar
Owen Taylor committed
967
{
968 969
  gtk_font_selection_load_font (fontsel);  
}
970

971 972 973 974 975 976 977 978 979 980 981 982 983
static void
gtk_font_selection_set_size (GtkFontSelection *fontsel,
			     gint              new_size)
{
  if (fontsel->size != new_size)
    {
      fontsel->size = new_size;

      gtk_font_selection_show_available_sizes (fontsel, FALSE);      
      gtk_font_selection_load_font (fontsel);
    }
}

984 985
/* If the user hits return in the font size entry, we change to the new font
   size. */
986 987 988
static void
gtk_font_selection_size_activate (GtkWidget   *w,
                                  gpointer     data)
989 990 991
{
  GtkFontSelection *fontsel;
  gint new_size;
992
  const gchar *text;
993
  
994
  fontsel = GTK_FONT_SELECTION (data);
995 996

  text = gtk_entry_get_text (GTK_ENTRY (fontsel->size_entry));
997 998
  new_size = MAX (0.1, atof (text) * PANGO_SCALE + 0.5);

999 1000 1001 1002
  if (fontsel->size != new_size)
    gtk_font_selection_set_size (fontsel, new_size);
  else 
    list_row_activated (w);
Owen Taylor's avatar
Owen Taylor committed
1003 1004
}

1005 1006 1007 1008 1009
static gboolean
gtk_font_selection_size_focus_out (GtkWidget     *w,
				   GdkEventFocus *event,
				   gpointer       data)
{
1010 1011 1012 1013 1014 1015 1016 1017 1018 1019
  GtkFontSelection *fontsel;
  gint new_size;
  const gchar *text;
  
  fontsel = GTK_FONT_SELECTION (data);

  text = gtk_entry_get_text (GTK_ENTRY (fontsel->size_entry));
  new_size = MAX (0.1, atof (text) * PANGO_SCALE + 0.5);

  gtk_font_selection_set_size (fontsel, new_size);
1020 1021 1022 1023
  
  return TRUE;
}

1024
/* This is called when a size is selected in the list. */
Owen Taylor's avatar
Owen Taylor committed
1025
static void
1026 1027
gtk_font_selection_select_size (GtkTreeSelection *selection,
				gpointer          data)
Owen Taylor's avatar
Owen Taylor committed
1028
{
1029
  GtkFontSelection *fontsel;
1030 1031
  GtkTreeModel *model;
  GtkTreeIter iter;
1032 1033 1034
  gint new_size;
  
  fontsel = GTK_FONT_SELECTION (data);
1035
  
1036
  if (gtk_tree_selection_get_selected (selection, &model, &iter))
Owen Taylor's avatar
Owen Taylor committed
1037
    {
1038
      gtk_tree_model_get (model, &iter, SIZE_COLUMN, &new_size, -1);
1039
      gtk_font_selection_set_size (fontsel, new_size * PANGO_SCALE);
Owen Taylor's avatar
Owen Taylor committed
1040 1041 1042
    }
}

1043 1044 1045 1046 1047 1048 1049 1050 1051
static void
gtk_font_selection_load_font (GtkFontSelection *fontsel)
{
  if (fontsel->font)
    gdk_font_unref (fontsel->font);
  fontsel->font = NULL;

  gtk_font_selection_update_preview (fontsel);
}
Owen Taylor's avatar
Owen Taylor committed
1052

1053 1054 1055
static PangoFontDescription *
gtk_font_selection_get_font_description (GtkFontSelection *fontsel)
{
1056 1057 1058 1059 1060 1061 1062 1063
  PangoFontDescription *font_desc;

  if (fontsel->face)
    {
      font_desc = pango_font_face_describe (fontsel->face);
      pango_font_description_set_size (font_desc, fontsel->size);
    }
  else
Matthias Clasen's avatar
Matthias Clasen committed
1064
    font_desc = pango_font_description_from_string (DEFAULT_FONT_NAME);
1065 1066 1067 1068

  return font_desc;
}

1069 1070 1071 1072 1073 1074 1075 1076
/* This sets the font in the preview entry to the selected font, and tries to
   make sure that the preview entry is a reasonable size, i.e. so that the
   text can be seen with a bit of space to spare. But it tries to avoid
   resizing the entry every time the font changes.
   This also used to shrink the preview if the font size was decreased, but
   that made it awkward if the user wanted to resize the window themself. */
static void
gtk_font_selection_update_preview (GtkFontSelection *fontsel)
Owen Taylor's avatar
Owen Taylor committed
1077
{
<