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

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 2 -*- */
   2 /* GTK - The GIMP Toolkit
   3  * Copyright (C) 2000 Red Hat, Inc.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Library General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Library General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Library General Public
  16  * License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  */
  20
  21 /*
  22  * Modified by the GTK+ Team and others 1997-2003.  See the AUTHORS
  23  * file for a list of people on the GTK+ Team.  See the ChangeLog
  24  * files for a list of changes.  These files are distributed with
  25  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  26  */
  27
  28 #include "config.h"
  29 #include <string.h>
  30
  31 #include "gtkmessagedialog.h"
  32 #include "gtkaccessible.h"
  33 #include "gtkbuildable.h"
  34 #include "gtklabel.h"
  35 #include "gtkhbox.h"
  36 #include "gtkvbox.h"
  37 #include "gtkimage.h"
  38 #include "gtkstock.h"
  39 #include "gtkiconfactory.h"
  40 #include "gtkintl.h"
  41 #include "gtkprivate.h"
  42
  43 /**
  44  * SECTION:gtkmessagedialog
  45  * @Short_description: A convenient message window
  46  * @Title: GtkMessageDialog
  47  * @See_also:#GtkDialog
  48  *
  49  * #GtkMessageDialog presents a dialog with an image representing the type of
  50  * message (Error, Question, etc.) alongside some message text. It's simply a
  51  * convenience widget; you could construct the equivalent of #GtkMessageDialog
  52  * from #GtkDialog without too much effort, but #GtkMessageDialog saves typing.
  53  *
  54  * The easiest way to do a modal message dialog is to use gtk_dialog_run(), though
  55  * you can also pass in the %GTK_DIALOG_MODAL flag, gtk_dialog_run() automatically
  56  * makes the dialog modal and waits for the user to respond to it. gtk_dialog_run()
  57  * returns when any dialog button is clicked.
  58  * <example>
  59  * <title>A modal dialog.</title>
  60  * <programlisting>
  61  *  dialog = gtk_message_dialog_new (main_application_window,
  62  *                                   GTK_DIALOG_DESTROY_WITH_PARENT,
  63  *                                   GTK_MESSAGE_ERROR,
  64  *                                   GTK_BUTTONS_CLOSE,
  65  *                                   "Error loading file '&percnt;s': &percnt;s",
  66  *                                   filename, g_strerror (errno));
  67  *  gtk_dialog_run (GTK_DIALOG (dialog));
  68  *  gtk_widget_destroy (dialog);
  69  * </programlisting>
  70  * </example>
  71  * You might do a non-modal #GtkMessageDialog as follows:
  72  * <example>
  73  * <title>A non-modal dialog.</title>
  74  * <programlisting>
  75  *  dialog = gtk_message_dialog_new (main_application_window,
  76  *                                   GTK_DIALOG_DESTROY_WITH_PARENT,
  77  *                                   GTK_MESSAGE_ERROR,
  78  *                                   GTK_BUTTONS_CLOSE,
  79  *                                   "Error loading file '&percnt;s': &percnt;s",
  80  *                                   filename, g_strerror (errno));
  81  *
  82  *  /&ast; Destroy the dialog when the user responds to it (e.g. clicks a button) &ast;/
  83  *  g_signal_connect_swapped (dialog, "response",
  84  *                            G_CALLBACK (gtk_widget_destroy),
  85  *                            dialog);
  86  * </programlisting>
  87  * </example>
  88  *
  89  * <refsect2 id="GtkMessageDialog-BUILDER-UI">
  90  * <title>GtkMessageDialog as GtkBuildable</title>
  91  * <para>
  92  * The GtkMessageDialog implementation of the GtkBuildable interface exposes
  93  * the message area as an internal child with the name "message_area".
  94  * </para>
  95  * </refsect2>
  96  */
  97
  98 struct _GtkMessageDialogPrivate
  99 {
 100   GtkWidget     *image;
 101   GtkWidget     *label;
 102   GtkWidget     *message_area; /* vbox for the primary and secondary labels, and any extra content from the caller */
 103   GtkWidget     *secondary_label;
 104
 105   guint          has_primary_markup : 1;
 106   guint          has_secondary_text : 1;
 107   guint          message_type       : 3;
 108 };
 109
 110 static void gtk_message_dialog_style_updated (GtkWidget             *widget);
 111
 112 static void gtk_message_dialog_set_property (GObject          *object,
 113                                              guint             prop_id,
 114                                              const GValue     *value,
 115                                              GParamSpec       *pspec);
 116 static void gtk_message_dialog_get_property (GObject          *object,
 117                                              guint             prop_id,
 118                                              GValue           *value,
 119                                              GParamSpec       *pspec);
 120 static void gtk_message_dialog_add_buttons  (GtkMessageDialog *message_dialog,
 121                                              GtkButtonsType    buttons);
 122 static void      gtk_message_dialog_buildable_interface_init     (GtkBuildableIface *iface);
 123 static GObject * gtk_message_dialog_buildable_get_internal_child (GtkBuildable  *buildable,
 124                                                                   GtkBuilder    *builder,
 125                                                                   const gchar   *childname);
 126
 127
 128 enum {
 129   PROP_0,
 130   PROP_MESSAGE_TYPE,
 131   PROP_BUTTONS,
 132   PROP_TEXT,
 133   PROP_USE_MARKUP,
 134   PROP_SECONDARY_TEXT,
 135   PROP_SECONDARY_USE_MARKUP,
 136   PROP_IMAGE,
 137   PROP_MESSAGE_AREA
 138 };
 139
 140 G_DEFINE_TYPE_WITH_CODE (GtkMessageDialog, gtk_message_dialog, GTK_TYPE_DIALOG,
 141                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 142                                                 gtk_message_dialog_buildable_interface_init))
 143
 144 static GtkBuildableIface *parent_buildable_iface;
 145
 146 static void
 147 gtk_message_dialog_buildable_interface_init (GtkBuildableIface *iface)
 148 {
 149   parent_buildable_iface = g_type_interface_peek_parent (iface);
 150   iface->get_internal_child = gtk_message_dialog_buildable_get_internal_child;
 151   iface->custom_tag_start = parent_buildable_iface->custom_tag_start;
 152   iface->custom_finished = parent_buildable_iface->custom_finished;
 153 }
 154
 155 static GObject *
 156 gtk_message_dialog_buildable_get_internal_child (GtkBuildable *buildable,
 157                                                  GtkBuilder   *builder,
 158                                                  const gchar  *childname)
 159 {
 160   if (strcmp (childname, "message_area") == 0)
 161     return G_OBJECT (gtk_message_dialog_get_message_area (GTK_MESSAGE_DIALOG (buildable)));
 162
 163   return parent_buildable_iface->get_internal_child (buildable, builder, childname);
 164 }
 165
 166
 167 static void
 168 gtk_message_dialog_class_init (GtkMessageDialogClass *class)
 169 {
 170   GtkWidgetClass *widget_class;
 171   GObjectClass *gobject_class;
 172
 173   widget_class = GTK_WIDGET_CLASS (class);
 174   gobject_class = G_OBJECT_CLASS (class);
 175
 176   widget_class->style_updated = gtk_message_dialog_style_updated;
 177
 178   gobject_class->set_property = gtk_message_dialog_set_property;
 179   gobject_class->get_property = gtk_message_dialog_get_property;
 180
 181   gtk_widget_class_install_style_property (widget_class,
 182                                            g_param_spec_int ("message-border",
 183                                                              P_("Image/label border"),
 184                                                              P_("Width of border around the label and image in the message dialog"),
 185                                                              0,
 186                                                              G_MAXINT,
 187                                                              12,
 188                                                              GTK_PARAM_READABLE));
 189
 190   /**
 191    * GtkMessageDialog:message-type:
 192    *
 193    * The type of the message. The type is used to determine
 194    * the image that is shown in the dialog, unless the image is
 195    * explicitly set by the ::image property.
 196    */
 197   g_object_class_install_property (gobject_class,
 198                                    PROP_MESSAGE_TYPE,
 199                                    g_param_spec_enum ("message-type",
 200                                                       P_("Message Type"),
 201                                                       P_("The type of message"),
 202                                                       GTK_TYPE_MESSAGE_TYPE,
 203                                                       GTK_MESSAGE_INFO,
 204                                                       GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
 205   g_object_class_install_property (gobject_class,
 206                                    PROP_BUTTONS,
 207                                    g_param_spec_enum ("buttons",
 208                                                       P_("Message Buttons"),
 209                                                       P_("The buttons shown in the message dialog"),
 210                                                       GTK_TYPE_BUTTONS_TYPE,
 211                                                       GTK_BUTTONS_NONE,
 212                                                       GTK_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
 213
 214   /**
 215    * GtkMessageDialog:text:
 216    *
 217    * The primary text of the message dialog. If the dialog has
 218    * a secondary text, this will appear as the title.
 219    *
 220    * Since: 2.10
 221    */
 222   g_object_class_install_property (gobject_class,
 223                                    PROP_TEXT,
 224                                    g_param_spec_string ("text",
 225                                                         P_("Text"),
 226                                                         P_("The primary text of the message dialog"),
 227                                                         "",
 228                                                         GTK_PARAM_READWRITE));
 229
 230   /**
 231    * GtkMessageDialog:use-markup:
 232    *
 233    * %TRUE if the primary text of the dialog includes Pango markup.
 234    * See pango_parse_markup().
 235    *
 236    * Since: 2.10
 237    */
 238   g_object_class_install_property (gobject_class,
 239                                    PROP_USE_MARKUP,
 240                                    g_param_spec_boolean ("use-markup",
 241                                                          P_("Use Markup"),
 242                                                          P_("The primary text of the title includes Pango markup."),
 243                                                          FALSE,
 244                                                          GTK_PARAM_READWRITE));
 245
 246   /**
 247    * GtkMessageDialog:secondary-text:
 248    *
 249    * The secondary text of the message dialog.
 250    *
 251    * Since: 2.10
 252    */
 253   g_object_class_install_property (gobject_class,
 254                                    PROP_SECONDARY_TEXT,
 255                                    g_param_spec_string ("secondary-text",
 256                                                         P_("Secondary Text"),
 257                                                         P_("The secondary text of the message dialog"),
 258                                                         NULL,
 259                                                         GTK_PARAM_READWRITE));
 260
 261   /**
 262    * GtkMessageDialog:secondary-use-markup:
 263    *
 264    * %TRUE if the secondary text of the dialog includes Pango markup.
 265    * See pango_parse_markup().
 266    *
 267    * Since: 2.10
 268    */
 269   g_object_class_install_property (gobject_class,
 270                                    PROP_SECONDARY_USE_MARKUP,
 271                                    g_param_spec_boolean ("secondary-use-markup",
 272                                                          P_("Use Markup in secondary"),
 273                                                          P_("The secondary text includes Pango markup."),
 274                                                          FALSE,
 275                                                          GTK_PARAM_READWRITE));
 276
 277   /**
 278    * GtkMessageDialog:image:
 279    *
 280    * The image for this dialog.
 281    *
 282    * Since: 2.10
 283    */
 284   g_object_class_install_property (gobject_class,
 285                                    PROP_IMAGE,
 286                                    g_param_spec_object ("image",
 287                                                         P_("Image"),
 288                                                         P_("The image"),
 289                                                         GTK_TYPE_WIDGET,
 290                                                         GTK_PARAM_READWRITE));
 291
 292   /**
 293    * GtkMessageDialog:message-area
 294    *
 295    * The #GtkVBox that corresponds to the message area of this dialog.  See
 296    * gtk_message_dialog_get_message_area() for a detailed description of this
 297    * area.
 298    *
 299    * Since: 2.22
 300    */
 301   g_object_class_install_property (gobject_class,
 302                                    PROP_MESSAGE_AREA,
 303                                    g_param_spec_object ("message-area",
 304                                                         P_("Message area"),
 305                                                         P_("GtkVBox that holds the dialog's primary and secondary labels"),
 306                                                         GTK_TYPE_WIDGET,
 307                                                         GTK_PARAM_READABLE));
 308
 309   g_type_class_add_private (gobject_class, sizeof (GtkMessageDialogPrivate));
 310 }
 311
 312 static void
 313 gtk_message_dialog_init (GtkMessageDialog *dialog)
 314 {
 315   GtkWidget *hbox;
 316   GtkDialog *message_dialog = GTK_DIALOG (dialog);
 317   GtkWidget *action_area, *content_area;
 318   GtkMessageDialogPrivate *priv;
 319
 320   dialog->priv = G_TYPE_INSTANCE_GET_PRIVATE (dialog,
 321                                               GTK_TYPE_MESSAGE_DIALOG,
 322                                               GtkMessageDialogPrivate);
 323   priv = dialog->priv;
 324
 325   content_area = gtk_dialog_get_content_area (message_dialog);
 326   action_area = gtk_dialog_get_action_area (message_dialog);
 327
 328   gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
 329   gtk_window_set_title (GTK_WINDOW (dialog), "");
 330   gtk_window_set_skip_taskbar_hint (GTK_WINDOW (dialog), TRUE);
 331
 332   priv->has_primary_markup = FALSE;
 333   priv->has_secondary_text = FALSE;
 334   priv->secondary_label = gtk_label_new (NULL);
 335   gtk_widget_set_no_show_all (priv->secondary_label, TRUE);
 336
 337   priv->label = gtk_label_new (NULL);
 338   priv->image = gtk_image_new_from_stock (NULL, GTK_ICON_SIZE_DIALOG);
 339   gtk_misc_set_alignment (GTK_MISC (priv->image), 0.5, 0.0);
 340
 341   gtk_label_set_line_wrap  (GTK_LABEL (priv->label), TRUE);
 342   gtk_label_set_selectable (GTK_LABEL (priv->label), TRUE);
 343   gtk_misc_set_alignment   (GTK_MISC  (priv->label), 0.0, 0.0);
 344
 345   gtk_label_set_line_wrap  (GTK_LABEL (priv->secondary_label), TRUE);
 346   gtk_label_set_selectable (GTK_LABEL (priv->secondary_label), TRUE);
 347   gtk_misc_set_alignment   (GTK_MISC  (priv->secondary_label), 0.0, 0.0);
 348
 349   hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
 350   priv->message_area = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
 351
 352   gtk_box_pack_start (GTK_BOX (priv->message_area), priv->label,
 353                       FALSE, FALSE, 0);
 354
 355   gtk_box_pack_start (GTK_BOX (priv->message_area), priv->secondary_label,
 356                       TRUE, TRUE, 0);
 357
 358   gtk_box_pack_start (GTK_BOX (hbox), priv->image,
 359                       FALSE, FALSE, 0);
 360
 361   gtk_box_pack_start (GTK_BOX (hbox), priv->message_area,
 362                       TRUE, TRUE, 0);
 363
 364   gtk_box_pack_start (GTK_BOX (content_area),
 365                       hbox,
 366                       FALSE, FALSE, 0);
 367
 368   gtk_container_set_border_width (GTK_CONTAINER (dialog), 5);
 369   gtk_container_set_border_width (GTK_CONTAINER (hbox), 5);
 370   gtk_box_set_spacing (GTK_BOX (content_area), 14); /* 14 + 2 * 5 = 24 */
 371   gtk_container_set_border_width (GTK_CONTAINER (action_area), 5);
 372   gtk_box_set_spacing (GTK_BOX (action_area), 6);
 373
 374   gtk_widget_show_all (hbox);
 375 }
 376
 377 static void
 378 setup_primary_label_font (GtkMessageDialog *dialog)
 379 {
 380   GtkMessageDialogPrivate *priv = dialog->priv;
 381   gint size;
 382   PangoFontDescription *font_desc;
 383   GtkStyleContext *context;
 384   GtkStateFlags state;
 385
 386   /* unset the font settings */
 387   gtk_widget_modify_font (priv->label, NULL);
 388
 389   if (priv->has_secondary_text && !priv->has_primary_markup)
 390     {
 391       context = gtk_widget_get_style_context (priv->label);
 392       state = gtk_widget_get_state_flags (priv->label);
 393
 394       size = pango_font_description_get_size (gtk_style_context_get_font (context, state));
 395       font_desc = pango_font_description_new ();
 396       pango_font_description_set_weight (font_desc, PANGO_WEIGHT_BOLD);
 397       pango_font_description_set_size (font_desc, size * PANGO_SCALE_LARGE);
 398       gtk_widget_modify_font (priv->label, font_desc);
 399       pango_font_description_free (font_desc);
 400     }
 401 }
 402
 403 static void
 404 setup_type (GtkMessageDialog *dialog,
 405             GtkMessageType    type)
 406 {
 407   GtkMessageDialogPrivate *priv = dialog->priv;
 408   const gchar *stock_id = NULL;
 409   AtkObject *atk_obj;
 410
 411   priv->message_type = type;
 412
 413   switch (type)
 414     {
 415     case GTK_MESSAGE_INFO:
 416       stock_id = GTK_STOCK_DIALOG_INFO;
 417       break;
 418
 419     case GTK_MESSAGE_QUESTION:
 420       stock_id = GTK_STOCK_DIALOG_QUESTION;
 421       break;
 422
 423     case GTK_MESSAGE_WARNING:
 424       stock_id = GTK_STOCK_DIALOG_WARNING;
 425       break;
 426
 427     case GTK_MESSAGE_ERROR:
 428       stock_id = GTK_STOCK_DIALOG_ERROR;
 429       break;
 430
 431     case GTK_MESSAGE_OTHER:
 432       break;
 433
 434     default:
 435       g_warning ("Unknown GtkMessageType %u", type);
 436       break;
 437     }
 438
 439   if (stock_id)
 440     gtk_image_set_from_stock (GTK_IMAGE (priv->image), stock_id,
 441                               GTK_ICON_SIZE_DIALOG);
 442
 443   atk_obj = gtk_widget_get_accessible (GTK_WIDGET (dialog));
 444   if (GTK_IS_ACCESSIBLE (atk_obj))
 445     {
 446       atk_object_set_role (atk_obj, ATK_ROLE_ALERT);
 447       if (stock_id)
 448         {
 449           GtkStockItem item;
 450
 451           gtk_stock_lookup (stock_id, &item);
 452           atk_object_set_name (atk_obj, item.label);
 453         }
 454     }
 455 }
 456
 457 static void
 458 gtk_message_dialog_set_property (GObject      *object,
 459                                  guint         prop_id,
 460                                  const GValue *value,
 461                                  GParamSpec   *pspec)
 462 {
 463   GtkMessageDialog *dialog = GTK_MESSAGE_DIALOG (object);
 464   GtkMessageDialogPrivate *priv = dialog->priv;
 465
 466   switch (prop_id)
 467     {
 468     case PROP_MESSAGE_TYPE:
 469       setup_type (dialog, g_value_get_enum (value));
 470       break;
 471     case PROP_BUTTONS:
 472       gtk_message_dialog_add_buttons (dialog, g_value_get_enum (value));
 473       break;
 474     case PROP_TEXT:
 475       if (priv->has_primary_markup)
 476         gtk_label_set_markup (GTK_LABEL (priv->label),
 477                               g_value_get_string (value));
 478       else
 479         gtk_label_set_text (GTK_LABEL (priv->label),
 480                             g_value_get_string (value));
 481       break;
 482     case PROP_USE_MARKUP:
 483       priv->has_primary_markup = g_value_get_boolean (value) != FALSE;
 484       gtk_label_set_use_markup (GTK_LABEL (priv->label),
 485                                 priv->has_primary_markup);
 486       setup_primary_label_font (dialog);
 487       break;
 488     case PROP_SECONDARY_TEXT:
 489       {
 490         const gchar *txt = g_value_get_string (value);
 491
 492         if (gtk_label_get_use_markup (GTK_LABEL (priv->secondary_label)))
 493           gtk_label_set_markup (GTK_LABEL (priv->secondary_label), txt);
 494         else
 495           gtk_label_set_text (GTK_LABEL (priv->secondary_label), txt);
 496
 497         if (txt)
 498           {
 499             priv->has_secondary_text = TRUE;
 500             gtk_widget_show (priv->secondary_label);
 501           }
 502         else
 503           {
 504             priv->has_secondary_text = FALSE;
 505             gtk_widget_hide (priv->secondary_label);
 506           }
 507         setup_primary_label_font (dialog);
 508       }
 509       break;
 510     case PROP_SECONDARY_USE_MARKUP:
 511       gtk_label_set_use_markup (GTK_LABEL (priv->secondary_label),
 512                                 g_value_get_boolean (value));
 513       break;
 514     case PROP_IMAGE:
 515       gtk_message_dialog_set_image (dialog, g_value_get_object (value));
 516       break;
 517
 518     default:
 519       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 520       break;
 521     }
 522 }
 523
 524 static void
 525 gtk_message_dialog_get_property (GObject     *object,
 526                                  guint        prop_id,
 527                                  GValue      *value,
 528                                  GParamSpec  *pspec)
 529 {
 530   GtkMessageDialog *dialog = GTK_MESSAGE_DIALOG (object);
 531   GtkMessageDialogPrivate *priv = dialog->priv;
 532
 533   switch (prop_id)
 534     {
 535     case PROP_MESSAGE_TYPE:
 536       g_value_set_enum (value, (GtkMessageType) priv->message_type);
 537       break;
 538     case PROP_TEXT:
 539       g_value_set_string (value, gtk_label_get_label (GTK_LABEL (priv->label)));
 540       break;
 541     case PROP_USE_MARKUP:
 542       g_value_set_boolean (value, priv->has_primary_markup);
 543       break;
 544     case PROP_SECONDARY_TEXT:
 545       if (priv->has_secondary_text)
 546       g_value_set_string (value,
 547                           gtk_label_get_label (GTK_LABEL (priv->secondary_label)));
 548       else
 549         g_value_set_string (value, NULL);
 550       break;
 551     case PROP_SECONDARY_USE_MARKUP:
 552       if (priv->has_secondary_text)
 553         g_value_set_boolean (value,
 554                              gtk_label_get_use_markup (GTK_LABEL (priv->secondary_label)));
 555       else
 556         g_value_set_boolean (value, FALSE);
 557       break;
 558     case PROP_IMAGE:
 559       g_value_set_object (value, priv->image);
 560       break;
 561     case PROP_MESSAGE_AREA:
 562       g_value_set_object (value, priv->message_area);
 563       break;
 564     default:
 565       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 566       break;
 567     }
 568 }
 569
 570 /**
 571  * gtk_message_dialog_new:
 572  * @parent: (allow-none): transient parent, or %NULL for none
 573  * @flags: flags
 574  * @type: type of message
 575  * @buttons: set of buttons to use
 576  * @message_format: (allow-none): printf()-style format string, or %NULL
 577  * @Varargs: arguments for @message_format
 578  *
 579  * Creates a new message dialog, which is a simple dialog with an icon
 580  * indicating the dialog type (error, warning, etc.) and some text the
 581  * user may want to see. When the user clicks a button a "response"
 582  * signal is emitted with response IDs from #GtkResponseType. See
 583  * #GtkDialog for more details.
 584  *
 585  * Return value: (transfer none): a new #GtkMessageDialog
 586  **/
 587 GtkWidget*
 588 gtk_message_dialog_new (GtkWindow     *parent,
 589                         GtkDialogFlags flags,
 590                         GtkMessageType type,
 591                         GtkButtonsType buttons,
 592                         const gchar   *message_format,
 593                         ...)
 594 {
 595   GtkWidget *widget;
 596   GtkDialog *dialog;
 597   gchar* msg = NULL;
 598   va_list args;
 599
 600   g_return_val_if_fail (parent == NULL || GTK_IS_WINDOW (parent), NULL);
 601
 602   widget = g_object_new (GTK_TYPE_MESSAGE_DIALOG,
 603                          "message-type", type,
 604                          "buttons", buttons,
 605                          NULL);
 606   dialog = GTK_DIALOG (widget);
 607
 608   if (message_format)
 609     {
 610       va_start (args, message_format);
 611       msg = g_strdup_vprintf (message_format, args);
 612       va_end (args);
 613
 614       gtk_label_set_text (GTK_LABEL (GTK_MESSAGE_DIALOG (widget)->priv->label),
 615                           msg);
 616
 617       g_free (msg);
 618     }
 619
 620   if (parent != NULL)
 621     gtk_window_set_transient_for (GTK_WINDOW (widget),
 622                                   GTK_WINDOW (parent));
 623
 624   if (flags & GTK_DIALOG_MODAL)
 625     gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
 626
 627   if (flags & GTK_DIALOG_DESTROY_WITH_PARENT)
 628     gtk_window_set_destroy_with_parent (GTK_WINDOW (dialog), TRUE);
 629
 630   return widget;
 631 }
 632
 633 /**
 634  * gtk_message_dialog_new_with_markup:
 635  * @parent: (allow-none): transient parent, or %NULL for none
 636  * @flags: flags
 637  * @type: type of message
 638  * @buttons: set of buttons to use
 639  * @message_format: (allow-none): printf()-style format string, or %NULL
 640  * @Varargs: arguments for @message_format
 641  *
 642  * Creates a new message dialog, which is a simple dialog with an icon
 643  * indicating the dialog type (error, warning, etc.) and some text which
 644  * is marked up with the <link linkend="PangoMarkupFormat">Pango text markup language</link>.
 645  * When the user clicks a button a "response" signal is emitted with
 646  * response IDs from #GtkResponseType. See #GtkDialog for more details.
 647  *
 648  * Special XML characters in the printf() arguments passed to this
 649  * function will automatically be escaped as necessary.
 650  * (See g_markup_printf_escaped() for how this is implemented.)
 651  * Usually this is what you want, but if you have an existing
 652  * Pango markup string that you want to use literally as the
 653  * label, then you need to use gtk_message_dialog_set_markup()
 654  * instead, since you can't pass the markup string either
 655  * as the format (it might contain '%' characters) or as a string
 656  * argument.
 657  * |[
 658  *  GtkWidget *dialog;
 659  *  dialog = gtk_message_dialog_new (main_application_window,
 660  *                                   GTK_DIALOG_DESTROY_WITH_PARENT,
 661  *                                   GTK_MESSAGE_ERROR,
 662  *                                   GTK_BUTTONS_CLOSE,
 663  *                                   NULL);
 664  *  gtk_message_dialog_set_markup (GTK_MESSAGE_DIALOG (dialog),
 665  *                                 markup);
 666  * ]|
 667  *
 668  * Return value: a new #GtkMessageDialog
 669  *
 670  * Since: 2.4
 671  **/
 672 GtkWidget*
 673 gtk_message_dialog_new_with_markup (GtkWindow     *parent,
 674                                     GtkDialogFlags flags,
 675                                     GtkMessageType type,
 676                                     GtkButtonsType buttons,
 677                                     const gchar   *message_format,
 678                                     ...)
 679 {
 680   GtkWidget *widget;
 681   va_list args;
 682   gchar *msg = NULL;
 683
 684   g_return_val_if_fail (parent == NULL || GTK_IS_WINDOW (parent), NULL);
 685
 686   widget = gtk_message_dialog_new (parent, flags, type, buttons, NULL);
 687
 688   if (message_format)
 689     {
 690       va_start (args, message_format);
 691       msg = g_markup_vprintf_escaped (message_format, args);
 692       va_end (args);
 693
 694       gtk_message_dialog_set_markup (GTK_MESSAGE_DIALOG (widget), msg);
 695
 696       g_free (msg);
 697     }
 698
 699   return widget;
 700 }
 701
 702 /**
 703  * gtk_message_dialog_set_image:
 704  * @dialog: a #GtkMessageDialog
 705  * @image: the image
 706  *
 707  * Sets the dialog's image to @image.
 708  *
 709  * Since: 2.10
 710  **/
 711 void
 712 gtk_message_dialog_set_image (GtkMessageDialog *dialog,
 713                               GtkWidget        *image)
 714 {
 715   GtkMessageDialogPrivate *priv;
 716   GtkWidget *parent;
 717
 718   g_return_if_fail (GTK_IS_MESSAGE_DIALOG (dialog));
 719   g_return_if_fail (image == NULL || GTK_IS_WIDGET (image));
 720
 721   priv = dialog->priv;
 722
 723   if (image == NULL)
 724     {
 725       image = gtk_image_new_from_stock (NULL, GTK_ICON_SIZE_DIALOG);
 726       gtk_misc_set_alignment (GTK_MISC (image), 0.5, 0.0);
 727     }
 728
 729   priv->message_type = GTK_MESSAGE_OTHER;
 730
 731   parent = gtk_widget_get_parent (priv->image);
 732   gtk_container_add (GTK_CONTAINER (parent), image);
 733   gtk_container_remove (GTK_CONTAINER (parent), priv->image);
 734   gtk_box_reorder_child (GTK_BOX (parent), image, 0);
 735
 736   priv->image = image;
 737
 738   g_object_notify (G_OBJECT (dialog), "image");
 739 }
 740
 741 /**
 742  * gtk_message_dialog_get_image:
 743  * @dialog: a #GtkMessageDialog
 744  *
 745  * Gets the dialog's image.
 746  *
 747  * Return value: (transfer none): the dialog's image
 748  *
 749  * Since: 2.14
 750  **/
 751 GtkWidget *
 752 gtk_message_dialog_get_image (GtkMessageDialog *dialog)
 753 {
 754   g_return_val_if_fail (GTK_IS_MESSAGE_DIALOG (dialog), NULL);
 755
 756   return dialog->priv->image;
 757 }
 758
 759 /**
 760  * gtk_message_dialog_set_markup:
 761  * @message_dialog: a #GtkMessageDialog
 762  * @str: markup string (see <link linkend="PangoMarkupFormat">Pango markup format</link>)
 763  *
 764  * Sets the text of the message dialog to be @str, which is marked
 765  * up with the <link linkend="PangoMarkupFormat">Pango text markup
 766  * language</link>.
 767  *
 768  * Since: 2.4
 769  **/
 770 void
 771 gtk_message_dialog_set_markup (GtkMessageDialog *message_dialog,
 772                                const gchar      *str)
 773 {
 774   GtkMessageDialogPrivate *priv;
 775
 776   g_return_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog));
 777
 778   priv = message_dialog->priv;
 779
 780   priv->has_primary_markup = TRUE;
 781   gtk_label_set_markup (GTK_LABEL (priv->label), str);
 782 }
 783
 784 /**
 785  * gtk_message_dialog_format_secondary_text:
 786  * @message_dialog: a #GtkMessageDialog
 787  * @message_format: (allow-none): printf()-style format string, or %NULL
 788  * @Varargs: arguments for @message_format
 789  *
 790  * Sets the secondary text of the message dialog to be @message_format
 791  * (with printf()-style).
 792  *
 793  * Note that setting a secondary text makes the primary text become
 794  * bold, unless you have provided explicit markup.
 795  *
 796  * Since: 2.6
 797  **/
 798 void
 799 gtk_message_dialog_format_secondary_text (GtkMessageDialog *message_dialog,
 800                                           const gchar      *message_format,
 801                                           ...)
 802 {
 803   va_list args;
 804   gchar *msg = NULL;
 805   GtkMessageDialogPrivate *priv;
 806
 807   g_return_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog));
 808
 809   priv = message_dialog->priv;
 810
 811   if (message_format)
 812     {
 813       priv->has_secondary_text = TRUE;
 814
 815       va_start (args, message_format);
 816       msg = g_strdup_vprintf (message_format, args);
 817       va_end (args);
 818
 819       gtk_widget_show (priv->secondary_label);
 820       gtk_label_set_text (GTK_LABEL (priv->secondary_label), msg);
 821
 822       g_free (msg);
 823     }
 824   else
 825     {
 826       priv->has_secondary_text = FALSE;
 827       gtk_widget_hide (priv->secondary_label);
 828     }
 829
 830   setup_primary_label_font (message_dialog);
 831 }
 832
 833 /**
 834  * gtk_message_dialog_format_secondary_markup:
 835  * @message_dialog: a #GtkMessageDialog
 836  * @message_format: printf()-style markup string (see
 837      <link linkend="PangoMarkupFormat">Pango markup format</link>), or %NULL
 838  * @Varargs: arguments for @message_format
 839  *
 840  * Sets the secondary text of the message dialog to be @message_format (with
 841  * printf()-style), which is marked up with the
 842  * <link linkend="PangoMarkupFormat">Pango text markup language</link>.
 843  *
 844  * Note that setting a secondary text makes the primary text become
 845  * bold, unless you have provided explicit markup.
 846  *
 847  * Due to an oversight, this function does not escape special XML characters
 848  * like gtk_message_dialog_new_with_markup() does. Thus, if the arguments
 849  * may contain special XML characters, you should use g_markup_printf_escaped()
 850  * to escape it.
 851
 852  * <informalexample><programlisting>
 853  * gchar *msg;
 854  *
 855  * msg = g_markup_printf_escaped (message_format, ...);
 856  * gtk_message_dialog_format_secondary_markup (message_dialog, "&percnt;s", msg);
 857  * g_free (msg);
 858  * </programlisting></informalexample>
 859  *
 860  * Since: 2.6
 861  **/
 862 void
 863 gtk_message_dialog_format_secondary_markup (GtkMessageDialog *message_dialog,
 864                                             const gchar      *message_format,
 865                                             ...)
 866 {
 867   va_list args;
 868   gchar *msg = NULL;
 869   GtkMessageDialogPrivate *priv;
 870
 871   g_return_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog));
 872
 873   priv = message_dialog->priv;
 874
 875   if (message_format)
 876     {
 877       priv->has_secondary_text = TRUE;
 878
 879       va_start (args, message_format);
 880       msg = g_strdup_vprintf (message_format, args);
 881       va_end (args);
 882
 883       gtk_widget_show (priv->secondary_label);
 884       gtk_label_set_markup (GTK_LABEL (priv->secondary_label), msg);
 885
 886       g_free (msg);
 887     }
 888   else
 889     {
 890       priv->has_secondary_text = FALSE;
 891       gtk_widget_hide (priv->secondary_label);
 892     }
 893
 894   setup_primary_label_font (message_dialog);
 895 }
 896
 897 /**
 898  * gtk_message_dialog_get_message_area:
 899  * @message_dialog: a #GtkMessageDialog
 900  *
 901  * Returns the message area of the dialog. This is the box where the
 902  * dialog's primary and secondary labels are packed. You can add your
 903  * own extra content to that box and it will appear below those labels,
 904  * on the right side of the dialog's image (or on the left for right-to-left
 905  * languages).  See gtk_dialog_get_content_area() for the corresponding
 906  * function in the parent #GtkDialog.
 907  *
 908  * Return value: (transfer none): A #GtkVBox corresponding to the
 909  *     "message area" in the @message_dialog.
 910  *
 911  * Since: 2.22
 912  **/
 913 GtkWidget *
 914 gtk_message_dialog_get_message_area (GtkMessageDialog *message_dialog)
 915 {
 916   g_return_val_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog), NULL);
 917
 918   return message_dialog->priv->message_area;
 919 }
 920
 921 static void
 922 gtk_message_dialog_add_buttons (GtkMessageDialog* message_dialog,
 923                                 GtkButtonsType buttons)
 924 {
 925   GtkDialog* dialog = GTK_DIALOG (message_dialog);
 926
 927   switch (buttons)
 928     {
 929     case GTK_BUTTONS_NONE:
 930       /* nothing */
 931       break;
 932
 933     case GTK_BUTTONS_OK:
 934       gtk_dialog_add_button (dialog,
 935                              GTK_STOCK_OK,
 936                              GTK_RESPONSE_OK);
 937       break;
 938
 939     case GTK_BUTTONS_CLOSE:
 940       gtk_dialog_add_button (dialog,
 941                              GTK_STOCK_CLOSE,
 942                              GTK_RESPONSE_CLOSE);
 943       break;
 944
 945     case GTK_BUTTONS_CANCEL:
 946       gtk_dialog_add_button (dialog,
 947                              GTK_STOCK_CANCEL,
 948                              GTK_RESPONSE_CANCEL);
 949       break;
 950
 951     case GTK_BUTTONS_YES_NO:
 952       gtk_dialog_add_button (dialog,
 953                              GTK_STOCK_NO,
 954                              GTK_RESPONSE_NO);
 955       gtk_dialog_add_button (dialog,
 956                              GTK_STOCK_YES,
 957                              GTK_RESPONSE_YES);
 958       gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
 959                                                GTK_RESPONSE_YES,
 960                                                GTK_RESPONSE_NO,
 961                                                -1);
 962       break;
 963
 964     case GTK_BUTTONS_OK_CANCEL:
 965       gtk_dialog_add_button (dialog,
 966                              GTK_STOCK_CANCEL,
 967                              GTK_RESPONSE_CANCEL);
 968       gtk_dialog_add_button (dialog,
 969                              GTK_STOCK_OK,
 970                              GTK_RESPONSE_OK);
 971       gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
 972                                                GTK_RESPONSE_OK,
 973                                                GTK_RESPONSE_CANCEL,
 974                                                -1);
 975       break;
 976
 977     default:
 978       g_warning ("Unknown GtkButtonsType");
 979       break;
 980     }
 981
 982   g_object_notify (G_OBJECT (message_dialog), "buttons");
 983 }
 984
 985 static void
 986 gtk_message_dialog_style_updated (GtkWidget *widget)
 987 {
 988   GtkMessageDialog *dialog = GTK_MESSAGE_DIALOG (widget);
 989   GtkWidget *parent;
 990   gint border_width;
 991
 992   parent = gtk_widget_get_parent (gtk_message_dialog_get_image (dialog));
 993
 994   if (parent)
 995     {
 996       gtk_widget_style_get (widget, "message-border",
 997                             &border_width, NULL);
 998
 999       gtk_container_set_border_width (GTK_CONTAINER (parent),
1000                                       MAX (0, border_width - 7));
1001     }
1002
1003   setup_primary_label_font (dialog);
1004
1005   GTK_WIDGET_CLASS (gtk_message_dialog_parent_class)->style_updated (widget);
1006 }