gtkfontbutton.c 37.8 KB
Newer Older
1
/* 
Cody Russell's avatar
Cody Russell committed
2
 * GTK - The GIMP Toolkit
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
 * Copyright (C) 1998 David Abilleira Freijeiro <odaf@nexo.es>
 * All rights reserved.
 *
 * Based on gnome-color-picker by Federico Mena <federico@nuclecu.unam.mx>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
Javier Jardón's avatar
Javier Jardón committed
19
 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
20 21 22 23 24 25 26 27
 */
/*
 * Modified by the GTK+ Team and others 2003.  See the AUTHORS
 * file for a list of people on the GTK+ Team.  See the ChangeLog
 * files for a list of changes.  These files are distributed with
 * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
 */

28
#include "config.h"
29 30 31 32

#include "gtkfontbutton.h"

#include "gtkmain.h"
Matthias Clasen's avatar
Matthias Clasen committed
33
#include "gtkbox.h"
34
#include "gtklabel.h"
35
#include "gtkfontchooser.h"
36
#include "gtkfontchooserdialog.h"
37 38
#include "gtkimage.h"
#include "gtkmarshalers.h"
39
#include "gtkseparator.h"
40
#include "gtkprivate.h"
41
#include "gtkintl.h"
42
#include "gtkcssprovider.h"
43 44 45

#include <string.h>
#include <stdio.h>
46
#include "gtkfontchooserutils.h"
47

Matthias Clasen's avatar
Matthias Clasen committed
48

49 50
/**
 * SECTION:gtkfontbutton
51
 * @Short_description: A button to launch a font chooser dialog
52
 * @Title: GtkFontButton
53
 * @See_also: #GtkFontChooserDialog, #GtkColorButton.
54 55
 *
 * The #GtkFontButton is a button which displays the currently selected
56
 * font an allows to open a font chooser dialog to change the font.
57
 * It is suitable widget for selecting a font in a preference dialog.
58 59 60 61
 *
 * # CSS nodes
 *
 * GtkFontButton has a single CSS node with name button and style class .font.
62 63 64
 */


65
struct _GtkFontButtonPrivate
66 67
{
  gchar         *title;
68

69
  gchar         *fontname;
70

71 72 73 74
  guint         use_font : 1;
  guint         use_size : 1;
  guint         show_style : 1;
  guint         show_size : 1;
75
  guint         show_preview_entry : 1;
76

77 78 79
  GtkWidget     *font_dialog;
  GtkWidget     *font_label;
  GtkWidget     *size_label;
80
  GtkWidget     *font_size_box;
81

82 83 84
  PangoFontDescription *font_desc;
  PangoFontFamily      *font_family;
  PangoFontFace        *font_face;
85
  PangoFontMap         *font_map;
86 87 88 89 90
  gint                  font_size;
  gchar                *preview_text;
  GtkFontFilterFunc     font_filter;
  gpointer              font_filter_data;
  GDestroyNotify        font_filter_data_destroy;
91
  GtkCssProvider       *provider;
92 93 94
};

/* Signals */
95
enum
96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125
{
  FONT_SET,
  LAST_SIGNAL
};

enum 
{
  PROP_0,
  PROP_TITLE,
  PROP_FONT_NAME,
  PROP_USE_FONT,
  PROP_USE_SIZE,
  PROP_SHOW_STYLE,
  PROP_SHOW_SIZE
};

/* Prototypes */
static void gtk_font_button_finalize               (GObject            *object);
static void gtk_font_button_get_property           (GObject            *object,
                                                    guint               param_id,
                                                    GValue             *value,
                                                    GParamSpec         *pspec);
static void gtk_font_button_set_property           (GObject            *object,
                                                    guint               param_id,
                                                    const GValue       *value,
                                                    GParamSpec         *pspec);

static void gtk_font_button_clicked                 (GtkButton         *button);

/* Dialog response functions */
126 127
static void response_cb                             (GtkDialog         *dialog,
                                                     gint               response_id,
128 129 130 131 132 133 134 135 136 137
                                                     gpointer           data);
static void dialog_destroy                          (GtkWidget         *widget,
                                                     gpointer           data);

/* Auxiliary functions */
static void gtk_font_button_label_use_font          (GtkFontButton     *gfs);
static void gtk_font_button_update_font_info        (GtkFontButton     *gfs);

static guint font_button_signals[LAST_SIGNAL] = { 0 };

138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158
static void
clear_font_data (GtkFontButton *font_button)
{
  GtkFontButtonPrivate *priv = font_button->priv;

  if (priv->font_family)
    g_object_unref (priv->font_family);
  priv->font_family = NULL;

  if (priv->font_face)
    g_object_unref (priv->font_face);
  priv->font_face = NULL;

  if (priv->font_desc)
    pango_font_description_free (priv->font_desc);
  priv->font_desc = NULL;

  g_free (priv->fontname);
  priv->fontname = NULL;
}

159 160 161 162 163 164 165 166 167 168 169 170
static void
clear_font_filter_data (GtkFontButton *font_button)
{
  GtkFontButtonPrivate *priv = font_button->priv;

  if (priv->font_filter_data_destroy)
    priv->font_filter_data_destroy (priv->font_filter_data);
  priv->font_filter = NULL;
  priv->font_filter_data = NULL;
  priv->font_filter_data_destroy = NULL;
}

171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235
static gboolean
font_description_style_equal (const PangoFontDescription *a,
                              const PangoFontDescription *b)
{
  return (pango_font_description_get_weight (a) == pango_font_description_get_weight (b) &&
          pango_font_description_get_style (a) == pango_font_description_get_style (b) &&
          pango_font_description_get_stretch (a) == pango_font_description_get_stretch (b) &&
          pango_font_description_get_variant (a) == pango_font_description_get_variant (b));
}

static void
gtk_font_button_update_font_data (GtkFontButton *font_button)
{
  GtkFontButtonPrivate *priv = font_button->priv;
  PangoFontFamily **families;
  PangoFontFace **faces;
  gint n_families, n_faces, i;
  const gchar *family;

  g_assert (priv->font_desc != NULL);

  priv->fontname = pango_font_description_to_string (priv->font_desc);

  family = pango_font_description_get_family (priv->font_desc);
  if (family == NULL)
    return;

  n_families = 0;
  families = NULL;
  pango_context_list_families (gtk_widget_get_pango_context (GTK_WIDGET (font_button)),
                               &families, &n_families);
  n_faces = 0;
  faces = NULL;
  for (i = 0; i < n_families; i++)
    {
      const gchar *name = pango_font_family_get_name (families[i]);

      if (!g_ascii_strcasecmp (name, family))
        {
          priv->font_family = g_object_ref (families[i]);

          pango_font_family_list_faces (families[i], &faces, &n_faces);
          break;
        }
    }
  g_free (families);

  for (i = 0; i < n_faces; i++)
    {
      PangoFontDescription *tmp_desc = pango_font_face_describe (faces[i]);

      if (font_description_style_equal (tmp_desc, priv->font_desc))
        {
          priv->font_face = g_object_ref (faces[i]);

          pango_font_description_free (tmp_desc);
          break;
        }
      else
        pango_font_description_free (tmp_desc);
    }

  g_free (faces);
}

236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281
static gchar *
gtk_font_button_get_preview_text (GtkFontButton *font_button)
{
  GtkFontButtonPrivate *priv = font_button->priv;

  if (priv->font_dialog)
    return gtk_font_chooser_get_preview_text (GTK_FONT_CHOOSER (priv->font_dialog));

  return g_strdup (priv->preview_text);
}

static void
gtk_font_button_set_preview_text (GtkFontButton *font_button,
                                  const gchar   *preview_text)
{
  GtkFontButtonPrivate *priv = font_button->priv;

  if (priv->font_dialog)
    {
      gtk_font_chooser_set_preview_text (GTK_FONT_CHOOSER (priv->font_dialog),
                                         preview_text);
      return;
    }

  g_free (priv->preview_text);
  priv->preview_text = g_strdup (preview_text);
}


static gboolean
gtk_font_button_get_show_preview_entry (GtkFontButton *font_button)
{
  GtkFontButtonPrivate *priv = font_button->priv;

  if (priv->font_dialog)
    return gtk_font_chooser_get_show_preview_entry (GTK_FONT_CHOOSER (priv->font_dialog));

  return priv->show_preview_entry;
}

static void
gtk_font_button_set_show_preview_entry (GtkFontButton *font_button,
                                        gboolean       show)
{
  GtkFontButtonPrivate *priv = font_button->priv;

282 283 284 285 286 287 288 289 290
  show = show != FALSE;

  if (priv->show_preview_entry != show)
    {
      priv->show_preview_entry = show;
      if (priv->font_dialog)
        gtk_font_chooser_set_show_preview_entry (GTK_FONT_CHOOSER (priv->font_dialog), show);
      g_object_notify (G_OBJECT (font_button), "show-preview-entry");
    }
291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343
}

static PangoFontFamily *
gtk_font_button_font_chooser_get_font_family (GtkFontChooser *chooser)
{
  GtkFontButton *font_button = GTK_FONT_BUTTON (chooser);
  GtkFontButtonPrivate *priv = font_button->priv;

  return priv->font_family;
}

static PangoFontFace *
gtk_font_button_font_chooser_get_font_face (GtkFontChooser *chooser)
{
  GtkFontButton *font_button = GTK_FONT_BUTTON (chooser);
  GtkFontButtonPrivate *priv = font_button->priv;

  return priv->font_face;
}

static int
gtk_font_button_font_chooser_get_font_size (GtkFontChooser *chooser)
{
  GtkFontButton *font_button = GTK_FONT_BUTTON (chooser);
  GtkFontButtonPrivate *priv = font_button->priv;

  return priv->font_size;
}

static void
gtk_font_button_font_chooser_set_filter_func (GtkFontChooser    *chooser,
                                              GtkFontFilterFunc  filter_func,
                                              gpointer           filter_data,
                                              GDestroyNotify     data_destroy)
{
  GtkFontButton *font_button = GTK_FONT_BUTTON (chooser);
  GtkFontButtonPrivate *priv = font_button->priv;

  if (priv->font_dialog)
    {
      gtk_font_chooser_set_filter_func (GTK_FONT_CHOOSER (priv->font_dialog),
                                        filter_func,
                                        filter_data,
                                        data_destroy);
      return;
    }

  clear_font_filter_data (font_button);
  priv->font_filter = filter_func;
  priv->font_filter_data = filter_data;
  priv->font_filter_data_destroy = data_destroy;
}

344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359
static void
gtk_font_button_take_font_desc (GtkFontButton        *font_button,
                                PangoFontDescription *font_desc)
{
  GtkFontButtonPrivate *priv = font_button->priv;
  GObject *object = G_OBJECT (font_button);

  if (priv->font_desc && font_desc &&
      pango_font_description_equal (priv->font_desc, font_desc))
    {
      pango_font_description_free (font_desc);
      return;
    }

  g_object_freeze_notify (object);

360 361
  clear_font_data (font_button);

362 363 364 365 366
  if (font_desc)
    priv->font_desc = font_desc; /* adopted */
  else
    priv->font_desc = pango_font_description_from_string (_("Sans 12"));

367 368
  if (pango_font_description_get_size_is_absolute (priv->font_desc))
    priv->font_size = pango_font_description_get_size (priv->font_desc);
369
  else
370 371
    priv->font_size = pango_font_description_get_size (priv->font_desc) / PANGO_SCALE;

372
  gtk_font_button_update_font_data (font_button);
373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391
  gtk_font_button_update_font_info (font_button);

  if (priv->font_dialog)
    gtk_font_chooser_set_font_desc (GTK_FONT_CHOOSER (priv->font_dialog),
                                    priv->font_desc);

  g_object_notify (G_OBJECT (font_button), "font");
  g_object_notify (G_OBJECT (font_button), "font-desc");
  g_object_notify (G_OBJECT (font_button), "font-name");

  g_object_thaw_notify (object);
}

static const PangoFontDescription *
gtk_font_button_get_font_desc (GtkFontButton *font_button)
{
  return font_button->priv->font_desc;
}

392
static void
393 394
gtk_font_button_font_chooser_set_font_map (GtkFontChooser *chooser,
                                           PangoFontMap   *font_map)
395
{
396 397
  GtkFontButton *font_button = GTK_FONT_BUTTON (chooser);

398 399 400 401 402 403 404 405 406 407 408 409
  if (g_set_object (&font_button->priv->font_map, font_map))
    {
      PangoContext *context;

      if (!font_map)
        font_map = pango_cairo_font_map_get_default ();

      context = gtk_widget_get_pango_context (font_button->priv->font_label);
      pango_context_set_font_map (context, font_map);
    }
}

410 411 412 413 414 415 416 417
static PangoFontMap *
gtk_font_button_font_chooser_get_font_map (GtkFontChooser *chooser)
{
  GtkFontButton *font_button = GTK_FONT_BUTTON (chooser);

  return font_button->priv->font_map;
}

418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435
static void
gtk_font_button_font_chooser_notify (GObject    *object,
                                     GParamSpec *pspec,
                                     gpointer    user_data)
{
  /* We do not forward the notification of the "font" property to the dialog! */
  if (pspec->name == I_("preview-text") ||
      pspec->name == I_("show-preview-entry"))
    g_object_notify_by_pspec (user_data, pspec);
}

static void
gtk_font_button_font_chooser_iface_init (GtkFontChooserIface *iface)
{
  iface->get_font_family = gtk_font_button_font_chooser_get_font_family;
  iface->get_font_face = gtk_font_button_font_chooser_get_font_face;
  iface->get_font_size = gtk_font_button_font_chooser_get_font_size;
  iface->set_filter_func = gtk_font_button_font_chooser_set_filter_func;
436 437
  iface->set_font_map = gtk_font_button_font_chooser_set_font_map;
  iface->get_font_map = gtk_font_button_font_chooser_get_font_map;
438 439 440
}

G_DEFINE_TYPE_WITH_CODE (GtkFontButton, gtk_font_button, GTK_TYPE_BUTTON,
441
                         G_ADD_PRIVATE (GtkFontButton)
442 443
                         G_IMPLEMENT_INTERFACE (GTK_TYPE_FONT_CHOOSER,
                                                gtk_font_button_font_chooser_iface_init))
444 445 446 447 448

static void
gtk_font_button_class_init (GtkFontButtonClass *klass)
{
  GObjectClass *gobject_class;
449
  GtkWidgetClass *widget_class;
450 451 452
  GtkButtonClass *button_class;
  
  gobject_class = (GObjectClass *) klass;
453
  widget_class = (GtkWidgetClass *) klass;
454 455 456 457 458 459 460 461 462 463
  button_class = (GtkButtonClass *) klass;

  gobject_class->finalize = gtk_font_button_finalize;
  gobject_class->set_property = gtk_font_button_set_property;
  gobject_class->get_property = gtk_font_button_get_property;
  
  button_class->clicked = gtk_font_button_clicked;
  
  klass->font_set = NULL;

464 465
  _gtk_font_chooser_install_properties (gobject_class);

466 467 468
  /**
   * GtkFontButton:title:
   * 
469
   * The title of the font chooser dialog.
470 471 472 473 474 475
   *
   * Since: 2.4
   */
  g_object_class_install_property (gobject_class,
                                   PROP_TITLE,
                                   g_param_spec_string ("title",
476
                                                        P_("Title"),
477
                                                        P_("The title of the font chooser dialog"),
478
                                                        _("Pick a Font"),
479
                                                        GTK_PARAM_READWRITE));
480 481 482 483 484 485 486 487 488 489

  /**
   * GtkFontButton:font-name:
   * 
   * The name of the currently selected font.
   *
   * Since: 2.4
   */
  g_object_class_install_property (gobject_class,
                                   PROP_FONT_NAME,
490
                                   g_param_spec_string ("font-name",
491 492 493
                                                        P_("Font name"),
                                                        P_("The name of the selected font"),
                                                        P_("Sans 12"),
494
                                                        GTK_PARAM_READWRITE));
495 496 497 498

  /**
   * GtkFontButton:use-font:
   * 
Matthias Clasen's avatar
Matthias Clasen committed
499 500
   * If this property is set to %TRUE, the label will be drawn 
   * in the selected font.
501 502 503 504 505
   *
   * Since: 2.4
   */
  g_object_class_install_property (gobject_class,
                                   PROP_USE_FONT,
506
                                   g_param_spec_boolean ("use-font",
507 508
                                                         P_("Use font in label"),
                                                         P_("Whether the label is drawn in the selected font"),
509
                                                         FALSE,
510
                                                         GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
511 512 513 514

  /**
   * GtkFontButton:use-size:
   * 
Matthias Clasen's avatar
Matthias Clasen committed
515 516
   * If this property is set to %TRUE, the label will be drawn 
   * with the selected font size.
517 518 519 520 521
   *
   * Since: 2.4
   */
  g_object_class_install_property (gobject_class,
                                   PROP_USE_SIZE,
522
                                   g_param_spec_boolean ("use-size",
523 524
                                                         P_("Use size in label"),
                                                         P_("Whether the label is drawn with the selected font size"),
525
                                                         FALSE,
526
                                                         GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
527 528 529 530

  /**
   * GtkFontButton:show-style:
   * 
Matthias Clasen's avatar
Matthias Clasen committed
531 532 533
   * If this property is set to %TRUE, the name of the selected font style 
   * will be shown in the label. For a more WYSIWYG way to show the selected 
   * style, see the ::use-font property. 
534 535 536 537
   *
   * Since: 2.4
   */
  g_object_class_install_property (gobject_class,
538
                                   PROP_SHOW_STYLE,
539
                                   g_param_spec_boolean ("show-style",
540 541
                                                         P_("Show style"),
                                                         P_("Whether the selected font style is shown in the label"),
542
                                                         TRUE,
543
                                                         GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
544 545 546
  /**
   * GtkFontButton:show-size:
   * 
Matthias Clasen's avatar
Matthias Clasen committed
547 548 549
   * If this property is set to %TRUE, the selected font size will be shown 
   * in the label. For a more WYSIWYG way to show the selected size, see the 
   * ::use-size property. 
550 551 552 553 554
   *
   * Since: 2.4
   */
  g_object_class_install_property (gobject_class,
                                   PROP_SHOW_SIZE,
555
                                   g_param_spec_boolean ("show-size",
556 557
                                                         P_("Show size"),
                                                         P_("Whether selected font size is shown in the label"),
558
                                                         TRUE,
559
                                                         GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
560 561 562 563 564

  /**
   * GtkFontButton::font-set:
   * @widget: the object which received the signal.
   * 
565 566 567 568
   * The ::font-set signal is emitted when the user selects a font. 
   * When handling this signal, use gtk_font_button_get_font_name() 
   * to find out which font was just selected.
   *
569
   * Note that this signal is only emitted when the user
570 571
   * changes the font. If you need to react to programmatic font changes
   * as well, use the notify::font-name signal.
572 573 574
   *
   * Since: 2.4
   */
575
  font_button_signals[FONT_SET] = g_signal_new (I_("font-set"),
576 577 578 579 580 581
                                                G_TYPE_FROM_CLASS (gobject_class),
                                                G_SIGNAL_RUN_FIRST,
                                                G_STRUCT_OFFSET (GtkFontButtonClass, font_set),
                                                NULL, NULL,
                                                g_cclosure_marshal_VOID__VOID,
                                                G_TYPE_NONE, 0);
582 583 584

  /* Bind class to template
   */
585
  gtk_widget_class_set_template_from_resource (widget_class, "/org/gtk/libgtk/ui/gtkfontbutton.ui");
586 587 588
  gtk_widget_class_bind_template_child_private (widget_class, GtkFontButton, font_label);
  gtk_widget_class_bind_template_child_private (widget_class, GtkFontButton, size_label);
  gtk_widget_class_bind_template_child_private (widget_class, GtkFontButton, font_size_box);
589 590

  gtk_widget_class_set_css_name (widget_class, "button");
591 592 593 594 595
}

static void
gtk_font_button_init (GtkFontButton *font_button)
{
596 597
  GtkStyleContext *context;

598
  font_button->priv = gtk_font_button_get_instance_private (font_button);
599 600 601 602 603 604

  /* Initialize fields */
  font_button->priv->use_font = FALSE;
  font_button->priv->use_size = FALSE;
  font_button->priv->show_style = TRUE;
  font_button->priv->show_size = TRUE;
605
  font_button->priv->show_preview_entry = TRUE;
606
  font_button->priv->font_dialog = NULL;
607 608 609
  font_button->priv->font_family = NULL;
  font_button->priv->font_face = NULL;
  font_button->priv->font_size = -1;
610 611
  font_button->priv->title = g_strdup (_("Pick a Font"));

612
  gtk_widget_init_template (GTK_WIDGET (font_button));
613

614
  gtk_font_button_take_font_desc (font_button, NULL);
615 616 617

  context = gtk_widget_get_style_context (GTK_WIDGET (font_button));
  gtk_style_context_add_class (context, "font");
618 619 620 621 622 623
}

static void
gtk_font_button_finalize (GObject *object)
{
  GtkFontButton *font_button = GTK_FONT_BUTTON (object);
624
  GtkFontButtonPrivate *priv = font_button->priv;
625

626 627
  if (priv->font_dialog != NULL) 
    gtk_widget_destroy (priv->font_dialog);
628

629
  g_free (priv->title);
630

631
  clear_font_data (font_button);
632 633
  clear_font_filter_data (font_button);

634 635 636
  g_free (priv->preview_text);

  g_clear_object (&priv->provider);
637

Matthias Clasen's avatar
Matthias Clasen committed
638
  G_OBJECT_CLASS (gtk_font_button_parent_class)->finalize (object);
639 640 641 642 643 644 645 646 647
}

static void
gtk_font_button_set_property (GObject      *object,
                              guint         param_id,
                              const GValue *value,
                              GParamSpec   *pspec)
{
  GtkFontButton *font_button = GTK_FONT_BUTTON (object);
648

649 650
  switch (param_id) 
    {
651 652 653 654 655 656
    case GTK_FONT_CHOOSER_PROP_PREVIEW_TEXT:
      gtk_font_button_set_preview_text (font_button, g_value_get_string (value));
      break;
    case GTK_FONT_CHOOSER_PROP_SHOW_PREVIEW_ENTRY:
      gtk_font_button_set_show_preview_entry (font_button, g_value_get_boolean (value));
      break;
657 658 659
    case PROP_TITLE:
      gtk_font_button_set_title (font_button, g_value_get_string (value));
      break;
660 661 662
    case GTK_FONT_CHOOSER_PROP_FONT_DESC:
      gtk_font_button_take_font_desc (font_button, g_value_dup_boxed (value));
      break;
663
    case GTK_FONT_CHOOSER_PROP_FONT:
664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694
    case PROP_FONT_NAME:
      gtk_font_button_set_font_name (font_button, g_value_get_string (value));
      break;
    case PROP_USE_FONT:
      gtk_font_button_set_use_font (font_button, g_value_get_boolean (value));
      break;
    case PROP_USE_SIZE:
      gtk_font_button_set_use_size (font_button, g_value_get_boolean (value));
      break;
    case PROP_SHOW_STYLE:
      gtk_font_button_set_show_style (font_button, g_value_get_boolean (value));
      break;
    case PROP_SHOW_SIZE:
      gtk_font_button_set_show_size (font_button, g_value_get_boolean (value));
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
      break;
  }
}

static void
gtk_font_button_get_property (GObject    *object,
                              guint       param_id,
                              GValue     *value,
                              GParamSpec *pspec)
{
  GtkFontButton *font_button = GTK_FONT_BUTTON (object);
  
  switch (param_id) 
    {
695 696 697 698 699 700
    case GTK_FONT_CHOOSER_PROP_PREVIEW_TEXT:
      g_value_set_string (value, gtk_font_button_get_preview_text (font_button));
      break;
    case GTK_FONT_CHOOSER_PROP_SHOW_PREVIEW_ENTRY:
      g_value_set_boolean (value, gtk_font_button_get_show_preview_entry (font_button));
      break;
701 702 703
    case PROP_TITLE:
      g_value_set_string (value, gtk_font_button_get_title (font_button));
      break;
704 705 706
    case GTK_FONT_CHOOSER_PROP_FONT_DESC:
      g_value_set_boxed (value, gtk_font_button_get_font_desc (font_button));
      break;
707
    case GTK_FONT_CHOOSER_PROP_FONT:
708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726
    case PROP_FONT_NAME:
      g_value_set_string (value, gtk_font_button_get_font_name (font_button));
      break;
    case PROP_USE_FONT:
      g_value_set_boolean (value, gtk_font_button_get_use_font (font_button));
      break;
    case PROP_USE_SIZE:
      g_value_set_boolean (value, gtk_font_button_get_use_size (font_button));
      break;
    case PROP_SHOW_STYLE:
      g_value_set_boolean (value, gtk_font_button_get_show_style (font_button));
      break;
    case PROP_SHOW_SIZE:
      g_value_set_boolean (value, gtk_font_button_get_show_size (font_button));
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
      break;
    }
727
}
728 729 730 731 732 733 734 735 736 737 738 739 740 741 742


/**
 * gtk_font_button_new:
 *
 * Creates a new font picker widget.
 *
 * Returns: a new font picker widget.
 *
 * Since: 2.4
 */
GtkWidget *
gtk_font_button_new (void)
{
  return g_object_new (GTK_TYPE_FONT_BUTTON, NULL);
743
}
744 745 746

/**
 * gtk_font_button_new_with_font:
747
 * @fontname: Name of font to display in font chooser dialog
748 749 750 751 752 753 754 755 756 757
 *
 * Creates a new font picker widget.
 *
 * Returns: a new font picker widget.
 *
 * Since: 2.4
 */
GtkWidget *
gtk_font_button_new_with_font (const gchar *fontname)
{
758
  return g_object_new (GTK_TYPE_FONT_BUTTON, "font-name", fontname, NULL);
759 760 761 762 763
} 

/**
 * gtk_font_button_set_title:
 * @font_button: a #GtkFontButton
764
 * @title: a string containing the font chooser dialog title
765
 *
766
 * Sets the title for the font chooser dialog.  
767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791
 *
 * Since: 2.4
 */
void
gtk_font_button_set_title (GtkFontButton *font_button, 
                           const gchar   *title)
{
  gchar *old_title;
  g_return_if_fail (GTK_IS_FONT_BUTTON (font_button));
  
  old_title = font_button->priv->title;
  font_button->priv->title = g_strdup (title);
  g_free (old_title);
  
  if (font_button->priv->font_dialog)
    gtk_window_set_title (GTK_WINDOW (font_button->priv->font_dialog),
                          font_button->priv->title);

  g_object_notify (G_OBJECT (font_button), "title");
} 

/**
 * gtk_font_button_get_title:
 * @font_button: a #GtkFontButton
 *
792
 * Retrieves the title of the font chooser dialog.
793 794 795 796 797
 *
 * Returns: an internal copy of the title string which must not be freed.
 *
 * Since: 2.4
 */
798
const gchar*
799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844
gtk_font_button_get_title (GtkFontButton *font_button)
{
  g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), NULL);

  return font_button->priv->title;
} 

/**
 * gtk_font_button_get_use_font:
 * @font_button: a #GtkFontButton
 *
 * Returns whether the selected font is used in the label.
 *
 * Returns: whether the selected font is used in the label.
 *
 * Since: 2.4
 */
gboolean
gtk_font_button_get_use_font (GtkFontButton *font_button)
{
  g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), FALSE);

  return font_button->priv->use_font;
} 

/**
 * gtk_font_button_set_use_font:
 * @font_button: a #GtkFontButton
 * @use_font: If %TRUE, font name will be written using font chosen.
 *
 * If @use_font is %TRUE, the font name will be written using the selected font.  
 *
 * Since: 2.4
 */
void  
gtk_font_button_set_use_font (GtkFontButton *font_button,
			      gboolean       use_font)
{
  g_return_if_fail (GTK_IS_FONT_BUTTON (font_button));
  
  use_font = (use_font != FALSE);
  
  if (font_button->priv->use_font != use_font) 
    {
      font_button->priv->use_font = use_font;

845
      gtk_font_button_label_use_font (font_button);
846
 
847
      g_object_notify (G_OBJECT (font_button), "use-font");
848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880
    }
} 


/**
 * gtk_font_button_get_use_size:
 * @font_button: a #GtkFontButton
 *
 * Returns whether the selected size is used in the label.
 *
 * Returns: whether the selected size is used in the label.
 *
 * Since: 2.4
 */
gboolean
gtk_font_button_get_use_size (GtkFontButton *font_button)
{
  g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), FALSE);

  return font_button->priv->use_size;
} 

/**
 * gtk_font_button_set_use_size:
 * @font_button: a #GtkFontButton
 * @use_size: If %TRUE, font name will be written using the selected size.
 *
 * If @use_size is %TRUE, the font name will be written using the selected size.
 *
 * Since: 2.4
 */
void  
gtk_font_button_set_use_size (GtkFontButton *font_button,
881
                              gboolean       use_size)
882 883 884 885 886 887 888 889
{
  g_return_if_fail (GTK_IS_FONT_BUTTON (font_button));
  
  use_size = (use_size != FALSE);
  if (font_button->priv->use_size != use_size) 
    {
      font_button->priv->use_size = use_size;

890
      gtk_font_button_label_use_font (font_button);
891

892
      g_object_notify (G_OBJECT (font_button), "use-size");
893 894 895 896 897 898 899 900 901
    }
} 

/**
 * gtk_font_button_get_show_style:
 * @font_button: a #GtkFontButton
 * 
 * Returns whether the name of the font style will be shown in the label.
 * 
902
 * Returns: whether the font style will be shown in the label.
903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935
 *
 * Since: 2.4
 **/
gboolean 
gtk_font_button_get_show_style (GtkFontButton *font_button)
{
  g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), FALSE);

  return font_button->priv->show_style;
}

/**
 * gtk_font_button_set_show_style:
 * @font_button: a #GtkFontButton
 * @show_style: %TRUE if font style should be displayed in label.
 *
 * If @show_style is %TRUE, the font style will be displayed along with name of the selected font.
 *
 * Since: 2.4
 */
void
gtk_font_button_set_show_style (GtkFontButton *font_button,
                                gboolean       show_style)
{
  g_return_if_fail (GTK_IS_FONT_BUTTON (font_button));
  
  show_style = (show_style != FALSE);
  if (font_button->priv->show_style != show_style) 
    {
      font_button->priv->show_style = show_style;
      
      gtk_font_button_update_font_info (font_button);
  
936
      g_object_notify (G_OBJECT (font_button), "show-style");
937 938 939 940 941 942 943 944 945 946
    }
} 


/**
 * gtk_font_button_get_show_size:
 * @font_button: a #GtkFontButton
 * 
 * Returns whether the font size will be shown in the label.
 * 
947
 * Returns: whether the font size will be shown in the label.
948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979
 *
 * Since: 2.4
 **/
gboolean 
gtk_font_button_get_show_size (GtkFontButton *font_button)
{
  g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), FALSE);

  return font_button->priv->show_size;
}

/**
 * gtk_font_button_set_show_size:
 * @font_button: a #GtkFontButton
 * @show_size: %TRUE if font size should be displayed in dialog.
 *
 * If @show_size is %TRUE, the font size will be displayed along with the name of the selected font.
 *
 * Since: 2.4
 */
void
gtk_font_button_set_show_size (GtkFontButton *font_button,
                               gboolean       show_size)
{
  g_return_if_fail (GTK_IS_FONT_BUTTON (font_button));
  
  show_size = (show_size != FALSE);

  if (font_button->priv->show_size != show_size) 
    {
      font_button->priv->show_size = show_size;

980 981 982 983
      if (font_button->priv->show_size)
	gtk_widget_show (font_button->priv->font_size_box);
      else
	gtk_widget_hide (font_button->priv->font_size_box);
984 985 986
      
      gtk_font_button_update_font_info (font_button);

987
      g_object_notify (G_OBJECT (font_button), "show-size");
988 989 990 991 992 993 994 995
    }
} 


/**
 * gtk_font_button_get_font_name:
 * @font_button: a #GtkFontButton
 *
996 997 998
 * Retrieves the name of the currently selected font. This name includes
 * style and size information as well. If you want to render something
 * with the font, use this string with pango_font_description_from_string() .
999
 * If you’re interested in peeking certain values (family name,
1000 1001
 * style, size, weight) just query these properties from the
 * #PangoFontDescription object.
1002 1003 1004 1005 1006
 *
 * Returns: an internal copy of the font name which must not be freed.
 *
 * Since: 2.4
 */
1007
const gchar *
1008 1009 1010
gtk_font_button_get_font_name (GtkFontButton *font_button)
{
  g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), NULL);
1011

1012 1013 1014 1015 1016 1017
  return font_button->priv->fontname;
}

/**
 * gtk_font_button_set_font_name:
 * @font_button: a #GtkFontButton
1018
 * @fontname: Name of font to display in font chooser dialog
1019 1020 1021
 *
 * Sets or updates the currently-displayed font in font picker dialog.
 *
1022
 * Returns: %TRUE
1023 1024 1025 1026 1027 1028 1029
 *
 * Since: 2.4
 */
gboolean 
gtk_font_button_set_font_name (GtkFontButton *font_button,
                               const gchar    *fontname)
{
1030
  PangoFontDescription *font_desc;
1031 1032 1033 1034

  g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), FALSE);
  g_return_val_if_fail (fontname != NULL, FALSE);

1035 1036
  font_desc = pango_font_description_from_string (fontname);
  gtk_font_button_take_font_desc (font_button, font_desc);
1037

1038
  return TRUE;
1039 1040 1041 1042 1043
}

static void
gtk_font_button_clicked (GtkButton *button)
{
1044 1045
  GtkFontChooser *font_dialog;
  GtkFontButton  *font_button = GTK_FONT_BUTTON (button);
1046
  GtkFontButtonPrivate *priv = font_button->priv;
1047 1048 1049 1050 1051 1052
  
  if (!font_button->priv->font_dialog) 
    {
      GtkWidget *parent;
      
      parent = gtk_widget_get_toplevel (GTK_WIDGET (font_button));
1053 1054

      priv->font_dialog = gtk_font_chooser_dialog_new (priv->title, NULL);
1055
      font_dialog = GTK_FONT_CHOOSER (font_button->priv->font_dialog);
1056

1057 1058
      if (priv->font_map)
        gtk_font_chooser_set_font_map (font_dialog, priv->font_map);
1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078
      gtk_font_chooser_set_show_preview_entry (font_dialog, priv->show_preview_entry);

      if (priv->preview_text)
        {
          gtk_font_chooser_set_preview_text (font_dialog, priv->preview_text);
          g_free (priv->preview_text);
          priv->preview_text = NULL;
        }

      if (priv->font_filter)
        {
          gtk_font_chooser_set_filter_func (font_dialog,
                                            priv->font_filter,
                                            priv->font_filter_data,
                                            priv->font_filter_data_destroy);
          priv->font_filter = NULL;
          priv->font_filter_data = NULL;
          priv->font_filter_data_destroy = NULL;
        }

1079
      if (gtk_widget_is_toplevel (parent) && GTK_IS_WINDOW (parent))
1080 1081
        {
          if (GTK_WINDOW (parent) != gtk_window_get_transient_for (GTK_WINDOW (font_dialog)))
1082 1083 1084 1085 1086 1087
            gtk_window_set_transient_for (GTK_WINDOW (font_dialog), GTK_WINDOW (parent));

          gtk_window_set_modal (GTK_WINDOW (font_dialog),
                                gtk_window_get_modal (GTK_WINDOW (parent)));
        }

1088 1089 1090
      g_signal_connect (font_dialog, "notify",
                        G_CALLBACK (gtk_font_button_font_chooser_notify), button);

1091 1092 1093
      g_signal_connect (font_dialog, "response",
                        G_CALLBACK (response_cb), font_button);

1094 1095
      g_signal_connect (font_dialog, "destroy",
                        G_CALLBACK (dialog_destroy), font_button);
1096 1097 1098

      g_signal_connect (font_dialog, "delete-event",
                        G_CALLBACK (gtk_widget_hide_on_delete), NULL);
1099 1100
    }
  
1101
  if (!gtk_widget_get_visible (font_button->priv->font_dialog))
1102
    {
1103
      font_dialog = GTK_FONT_CHOOSER (font_button->priv->font_dialog);
1104
      gtk_font_chooser_set_font_desc (font_dialog, font_button->priv->font_desc);
1105 1106 1107 1108 1109
    } 

  gtk_window_present (GTK_WINDOW (font_button->priv->font_dialog));
}

1110

1111
static void
1112 1113 1114
response_cb (GtkDialog *dialog,
             gint       response_id,
             gpointer   data)
1115 1116
{
  GtkFontButton *font_button = GTK_FONT_BUTTON (data);
1117 1118
  GtkFontButtonPrivate *priv = font_button->priv;
  GtkFontChooser *font_chooser;
1119
  GObject *object;
1120

1121
  gtk_widget_hide (font_button->priv->font_dialog);
1122 1123 1124 1125

  if (response_id != GTK_RESPONSE_OK)
    return;

1126
  font_chooser = GTK_FONT_CHOOSER (priv->font_dialog);
1127 1128 1129 1130
  object = G_OBJECT (font_chooser);

  g_object_freeze_notify (object);

1131
  clear_font_data (font_button);
1132

1133 1134 1135
  priv->font_desc = gtk_font_chooser_get_font_desc (font_chooser);
  if (priv->font_desc)
    priv->fontname = pango_font_description_to_string (priv->font_desc);
1136
  priv->font_family = gtk_font_chooser_get_font_family (font_chooser);
1137 1138
  if (priv->font_family)
    g_object_ref (priv->font_family);
1139
  priv->font_face = gtk_font_chooser_get_font_face (font_chooser);
1140 1141
  if (priv->font_face)
    g_object_ref (priv->font_face);
1142
  priv->font_size = gtk_font_chooser_get_font_size (font_chooser);
1143

1144 1145 1146
  /* Set label font */
  gtk_font_button_update_font_info (font_button);

1147
  g_object_notify (G_OBJECT (font_button), "font");
1148
  g_object_notify (G_OBJECT (font_button), "font-desc");
1149
  g_object_notify (G_OBJECT (font_button), "font-name");
1150 1151 1152

  g_object_thaw_notify (object);

1153 1154 1155 1156 1157 1158
  /* Emit font_set signal */
  g_signal_emit (font_button, font_button_signals[FONT_SET], 0);
}

static void
dialog_destroy (GtkWidget *widget,
1159
                gpointer   data)
1160 1161 1162 1163 1164 1165 1166 1167 1168 1169
{
  GtkFontButton *font_button = GTK_FONT_BUTTON (data);
    
  /* Dialog will get destroyed so reference is not valid now */
  font_button->priv->font_dialog = NULL;
} 

static void
gtk_font_button_label_use_font (GtkFontButton *font_button)
{
1170 1171
  GtkFontButtonPrivate *priv = font_button->priv;
  GtkStyleContext *context;
1172

1173
  context = gtk_widget_get_style_context (priv->font_label);
1174

1175 1176 1177 1178 1179 1180 1181
  if (!priv->use_font)
    {
      if (priv->provider)
        {
          gtk_style_context_remove_provider (context, GTK_STYLE_PROVIDER (priv->provider));
          g_clear_object (&priv->provider);
        }
1182 1183
    }
  else
1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196
    {
      PangoFontDescription *desc;
      gchar *font, *data;

      if (!priv->provider)
        {
          priv->provider = gtk_css_provider_new ();
          gtk_style_context_add_provider (context,
                                          GTK_STYLE_PROVIDER (priv->provider),
                                          GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
        }

      desc = pango_font_description_copy (priv->font_desc);
1197

1198 1199 1200 1201 1202 1203 1204
      if (!priv->use_size)
        pango_font_description_unset_fields (desc, PANGO_FONT_MASK_SIZE);

      font = pango_font_description_to_string (desc);
      data = g_strconcat ("* { font: ",  font, "; }", NULL);
      
      gtk_css_provider_load_from_data (priv->provider, data, -1, NULL);
1205

1206 1207 1208 1209 1210
      g_free (data);
      g_free (font);

      pango_font_description_free (desc);
    }
1211 1212 1213 1214 1215
}

static void
gtk_font_button_update_font_info (GtkFontButton *font_button)
{
1216
  GtkFontButtonPrivate *priv = font_button->priv;
1217 1218
  const gchar *fam_name;
  const gchar *face_name;
1219
  gchar *family_style;
1220

1221 1222 1223 1224 1225 1226 1227 1228
  if (priv->font_family)
    fam_name = pango_font_family_get_name (priv->font_family);
  else
    fam_name = _("None");
  if (priv->font_face)
    face_name = pango_font_face_get_face_name (priv->font_face);
  else
    face_name = "";
1229

1230
  if (priv->show_style)
1231
    family_style = g_strconcat (fam_name, " ", face_name, NULL);
1232
  else
1233
    family_style = g_strdup (fam_name);
1234

1235 1236 1237 1238 1239
  gtk_label_set_text (GTK_LABEL (font_button->priv->font_label), family_style);
  g_free (family_style);

  if (font_button->priv->show_size) 
    {
1240
      /* mirror Pango, which doesn't translate this either */
1241
      gchar *size = g_strdup_printf ("%2.4g%s",
1242 1243
                                     pango_font_description_get_size (priv->font_desc) / (double)PANGO_SCALE,
                                     pango_font_description_get_size_is_absolute (priv->font_desc) ? "px" : "");
1244 1245 1246 1247 1248 1249 1250 1251
      
      gtk_label_set_text (GTK_LABEL (font_button->priv->size_label), size);
      
      g_free (size);
    }

  gtk_font_button_label_use_font (font_button);
}