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
  30 #include <string.h>
  31
  32 #include "gtkmessagedialog.h"
  33 #include "gtkaccessible.h"
  34 #include "gtkbuildable.h"
  35 #include "gtklabel.h"
  36 #include "gtkhbox.h"
  37 #include "gtkvbox.h"
  38 #include "gtkimage.h"
  39 #include "gtkstock.h"
  40 #include "gtkiconfactory.h"
  41 #include "gtkintl.h"
  42 #include "gtkprivate.h"
  43 #include "gtktypebuiltins.h"
  44
  45 /**
  46  * SECTION:gtkmessagedialog
  47  * @Short_description: A convenient message window
  48  * @Title: GtkMessageDialog
  49  * @See_also:#GtkDialog
  50  *
  51  * #GtkMessageDialog presents a dialog with an image representing the type of
  52  * message (Error, Question, etc.) alongside some message text. It's simply a
  53  * convenience widget; you could construct the equivalent of #GtkMessageDialog
  54  * from #GtkDialog without too much effort, but #GtkMessageDialog saves typing.
  55  *
  56  * The easiest way to do a modal message dialog is to use gtk_dialog_run(), though
  57  * you can also pass in the %GTK_DIALOG_MODAL flag, gtk_dialog_run() automatically
  58  * makes the dialog modal and waits for the user to respond to it. gtk_dialog_run()
  59  * returns when any dialog button is clicked.
  60  * <example>
  61  * <title>A modal dialog.</title>
  62  * <programlisting>
  63  *  dialog = gtk_message_dialog_new (main_application_window,
  64  *                                   GTK_DIALOG_DESTROY_WITH_PARENT,
  65  *                                   GTK_MESSAGE_ERROR,
  66  *                                   GTK_BUTTONS_CLOSE,
  67  *                                   "Error loading file '&percnt;s': &percnt;s",
  68  *                                   filename, g_strerror (errno));
  69  *  gtk_dialog_run (GTK_DIALOG (dialog));
  70  *  gtk_widget_destroy (dialog);
  71  * </programlisting>
  72  * </example>
  73  * You might do a non-modal #GtkMessageDialog as follows:
  74  * <example>
  75  * <title>A non-modal dialog.</title>
  76  * <programlisting>
  77  *  dialog = gtk_message_dialog_new (main_application_window,
  78  *                                   GTK_DIALOG_DESTROY_WITH_PARENT,
  79  *                                   GTK_MESSAGE_ERROR,
  80  *                                   GTK_BUTTONS_CLOSE,
  81  *                                   "Error loading file '&percnt;s': &percnt;s",
  82  *                                   filename, g_strerror (errno));
  83  *
  84  *  /&ast; Destroy the dialog when the user responds to it (e.g. clicks a button) &ast;/
  85  *  g_signal_connect_swapped (dialog, "response",
  86  *                            G_CALLBACK (gtk_widget_destroy),
  87  *                            dialog);
  88  * </programlisting>
  89  * </example>
  90  *
  91  * <refsect2 id="GtkMessageDialog-BUILDER-UI">
  92  * <title>GtkMessageDialog as GtkBuildable</title>
  93  * <para>
  94  * The GtkMessageDialog implementation of the GtkBuildable interface exposes
  95  * the message area as an internal child with the name "message_area".
  96  * </para>
  97  * </refsect2>
  98  */
  99
 100 struct _GtkMessageDialogPrivate
 101 {
 102   GtkWidget     *image;
 103   GtkWidget     *label;
 104   GtkWidget     *message_area; /* vbox for the primary and secondary labels, and any extra content from the caller */
 105   GtkWidget     *secondary_label;
 106
 107   guint          has_primary_markup : 1;
 108   guint          has_secondary_text : 1;
 109   guint          message_type       : 3;
 110 };
 111
 112 static void gtk_message_dialog_style_updated (GtkWidget             *widget);
 113
 114 static void gtk_message_dialog_set_property (GObject          *object,
 115                                              guint             prop_id,
 116                                              const GValue     *value,
 117                                              GParamSpec       *pspec);
 118 static void gtk_message_dialog_get_property (GObject          *object,
 119                                              guint             prop_id,
 120                                              GValue           *value,
 121                                              GParamSpec       *pspec);
 122 static void gtk_message_dialog_add_buttons  (GtkMessageDialog *message_dialog,
 123                                              GtkButtonsType    buttons);
 124 static void      gtk_message_dialog_buildable_interface_init     (GtkBuildableIface *iface);
 125 static GObject * gtk_message_dialog_buildable_get_internal_child (GtkBuildable  *buildable,
 126                                                                   GtkBuilder    *builder,
 127                                                                   const gchar   *childname);
 128
 129
 130 enum {
 131   PROP_0,
 132   PROP_MESSAGE_TYPE,
 133   PROP_BUTTONS,
 134   PROP_TEXT,
 135   PROP_USE_MARKUP,
 136   PROP_SECONDARY_TEXT,
 137   PROP_SECONDARY_USE_MARKUP,
 138   PROP_IMAGE,
 139   PROP_MESSAGE_AREA
 140 };
 141
 142 G_DEFINE_TYPE_WITH_CODE (GtkMessageDialog, gtk_message_dialog, GTK_TYPE_DIALOG,
 143                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 144                                                 gtk_message_dialog_buildable_interface_init))
 145
 146 static GtkBuildableIface *parent_buildable_iface;
 147
 148 static void
 149 gtk_message_dialog_buildable_interface_init (GtkBuildableIface *iface)
 150 {
 151   parent_buildable_iface = g_type_interface_peek_parent (iface);
 152   iface->get_internal_child = gtk_message_dialog_buildable_get_internal_child;
 153   iface->custom_tag_start = parent_buildable_iface->custom_tag_start;
 154   iface->custom_finished = parent_buildable_iface->custom_finished;
 155 }
 156
 157 static GObject *
 158 gtk_message_dialog_buildable_get_internal_child (GtkBuildable *buildable,
 159                                                  GtkBuilder   *builder,
 160                                                  const gchar  *childname)
 161 {
 162   if (strcmp (childname, "message_area") == 0)
 163     return G_OBJECT (gtk_message_dialog_get_message_area (GTK_MESSAGE_DIALOG (buildable)));
 164
 165   return parent_buildable_iface->get_internal_child (buildable, builder, childname);
 166 }
 167
 168
 169 static void
 170 gtk_message_dialog_class_init (GtkMessageDialogClass *class)
 171 {
 172   GtkWidgetClass *widget_class;
 173   GObjectClass *gobject_class;
 174
 175   widget_class = GTK_WIDGET_CLASS (class);
 176   gobject_class = G_OBJECT_CLASS (class);
 177
 178   widget_class->style_updated = gtk_message_dialog_style_updated;
 179
 180   gobject_class->set_property = gtk_message_dialog_set_property;
 181   gobject_class->get_property = gtk_message_dialog_get_property;
 182
 183   gtk_widget_class_install_style_property (widget_class,
 184                                            g_param_spec_int ("message-border",
 185                                                              P_("Image/label border"),
 186                                                              P_("Width of border around the label and image in the message dialog"),
 187                                                              0,
 188                                                              G_MAXINT,
 189                                                              12,
 190                                                              GTK_PARAM_READABLE));
 191
 192   /**
 193    * GtkMessageDialog:message-type:
 194    *
 195    * The type of the message. The type is used to determine
 196    * the image that is shown in the dialog, unless the image is
 197    * explicitly set by the ::image property.
 198    */
 199   g_object_class_install_property (gobject_class,
 200                                    PROP_MESSAGE_TYPE,
 201                                    g_param_spec_enum ("message-type",
 202                                                       P_("Message Type"),
 203                                                       P_("The type of message"),
 204                                                       GTK_TYPE_MESSAGE_TYPE,
 205                                                       GTK_MESSAGE_INFO,
 206                                                       GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
 207   g_object_class_install_property (gobject_class,
 208                                    PROP_BUTTONS,
 209                                    g_param_spec_enum ("buttons",
 210                                                       P_("Message Buttons"),
 211                                                       P_("The buttons shown in the message dialog"),
 212                                                       GTK_TYPE_BUTTONS_TYPE,
 213                                                       GTK_BUTTONS_NONE,
 214                                                       GTK_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
 215
 216   /**
 217    * GtkMessageDialog:text:
 218    *
 219    * The primary text of the message dialog. If the dialog has
 220    * a secondary text, this will appear as the title.
 221    *
 222    * Since: 2.10
 223    */
 224   g_object_class_install_property (gobject_class,
 225                                    PROP_TEXT,
 226                                    g_param_spec_string ("text",
 227                                                         P_("Text"),
 228                                                         P_("The primary text of the message dialog"),
 229                                                         "",
 230                                                         GTK_PARAM_READWRITE));
 231
 232   /**
 233    * GtkMessageDialog:use-markup:
 234    *
 235    * %TRUE if the primary text of the dialog includes Pango markup.
 236    * See pango_parse_markup().
 237    *
 238    * Since: 2.10
 239    */
 240   g_object_class_install_property (gobject_class,
 241                                    PROP_USE_MARKUP,
 242                                    g_param_spec_boolean ("use-markup",
 243                                                          P_("Use Markup"),
 244                                                          P_("The primary text of the title includes Pango markup."),
 245                                                          FALSE,
 246                                                          GTK_PARAM_READWRITE));
 247
 248   /**
 249    * GtkMessageDialog:secondary-text:
 250    *
 251    * The secondary text of the message dialog.
 252    *
 253    * Since: 2.10
 254    */
 255   g_object_class_install_property (gobject_class,
 256                                    PROP_SECONDARY_TEXT,
 257                                    g_param_spec_string ("secondary-text",
 258                                                         P_("Secondary Text"),
 259                                                         P_("The secondary text of the message dialog"),
 260                                                         NULL,
 261                                                         GTK_PARAM_READWRITE));
 262
 263   /**
 264    * GtkMessageDialog:secondary-use-markup:
 265    *
 266    * %TRUE if the secondary text of the dialog includes Pango markup.
 267    * See pango_parse_markup().
 268    *
 269    * Since: 2.10
 270    */
 271   g_object_class_install_property (gobject_class,
 272                                    PROP_SECONDARY_USE_MARKUP,
 273                                    g_param_spec_boolean ("secondary-use-markup",
 274                                                          P_("Use Markup in secondary"),
 275                                                          P_("The secondary text includes Pango markup."),
 276                                                          FALSE,
 277                                                          GTK_PARAM_READWRITE));
 278
 279   /**
 280    * GtkMessageDialog:image:
 281    *
 282    * The image for this dialog.
 283    *
 284    * Since: 2.10
 285    */
 286   g_object_class_install_property (gobject_class,
 287                                    PROP_IMAGE,
 288                                    g_param_spec_object ("image",
 289                                                         P_("Image"),
 290                                                         P_("The image"),
 291                                                         GTK_TYPE_WIDGET,
 292                                                         GTK_PARAM_READWRITE));
 293
 294   /**
 295    * GtkMessageDialog:message-area
 296    *
 297    * The #GtkVBox that corresponds to the message area of this dialog.  See
 298    * gtk_message_dialog_get_message_area() for a detailed description of this
 299    * area.
 300    *
 301    * Since: 2.22
 302    */
 303   g_object_class_install_property (gobject_class,
 304                                    PROP_MESSAGE_AREA,
 305                                    g_param_spec_object ("message-area",
 306                                                         P_("Message area"),
 307                                                         P_("GtkVBox that holds the dialog's primary and secondary labels"),
 308                                                         GTK_TYPE_WIDGET,
 309                                                         GTK_PARAM_READABLE));
 310
 311   g_type_class_add_private (gobject_class, sizeof (GtkMessageDialogPrivate));
 312 }
 313
 314 static void
 315 gtk_message_dialog_init (GtkMessageDialog *dialog)
 316 {
 317   GtkWidget *hbox;
 318   GtkDialog *message_dialog = GTK_DIALOG (dialog);
 319   GtkWidget *action_area, *content_area;
 320   GtkMessageDialogPrivate *priv;
 321
 322   dialog->priv = G_TYPE_INSTANCE_GET_PRIVATE (dialog,
 323                                               GTK_TYPE_MESSAGE_DIALOG,
 324                                               GtkMessageDialogPrivate);
 325   priv = dialog->priv;
 326
 327   content_area = gtk_dialog_get_content_area (message_dialog);
 328   action_area = gtk_dialog_get_action_area (message_dialog);
 329
 330   gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
 331   gtk_window_set_title (GTK_WINDOW (dialog), "");
 332   gtk_window_set_skip_taskbar_hint (GTK_WINDOW (dialog), TRUE);
 333
 334   priv->has_primary_markup = FALSE;
 335   priv->has_secondary_text = FALSE;
 336   priv->secondary_label = gtk_label_new (NULL);
 337   gtk_widget_set_no_show_all (priv->secondary_label, TRUE);
 338
 339   priv->label = gtk_label_new (NULL);
 340   priv->image = gtk_image_new_from_stock (NULL, GTK_ICON_SIZE_DIALOG);
 341   gtk_widget_set_halign (priv->image, GTK_ALIGN_CENTER);
 342   gtk_widget_set_valign (priv->image, GTK_ALIGN_START);
 343
 344   gtk_label_set_line_wrap  (GTK_LABEL (priv->label), TRUE);
 345   gtk_label_set_selectable (GTK_LABEL (priv->label), TRUE);
 346   gtk_widget_set_halign (priv->label, GTK_ALIGN_START);
 347   gtk_widget_set_valign (priv->label, GTK_ALIGN_START);
 348
 349   gtk_label_set_line_wrap  (GTK_LABEL (priv->secondary_label), TRUE);
 350   gtk_label_set_selectable (GTK_LABEL (priv->secondary_label), TRUE);
 351   gtk_widget_set_halign (priv->secondary_label, GTK_ALIGN_START);
 352   gtk_widget_set_valign (priv->secondary_label, GTK_ALIGN_START);
 353
 354   hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
 355   priv->message_area = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
 356
 357   gtk_box_pack_start (GTK_BOX (priv->message_area), priv->label,
 358                       FALSE, FALSE, 0);
 359
 360   gtk_box_pack_start (GTK_BOX (priv->message_area), priv->secondary_label,
 361                       TRUE, TRUE, 0);
 362
 363   gtk_box_pack_start (GTK_BOX (hbox), priv->image,
 364                       FALSE, FALSE, 0);
 365
 366   gtk_box_pack_start (GTK_BOX (hbox), priv->message_area,
 367                       TRUE, TRUE, 0);
 368
 369   gtk_box_pack_start (GTK_BOX (content_area),
 370                       hbox,
 371                       FALSE, FALSE, 0);
 372
 373   gtk_container_set_border_width (GTK_CONTAINER (dialog), 5);
 374   gtk_container_set_border_width (GTK_CONTAINER (hbox), 5);
 375   gtk_box_set_spacing (GTK_BOX (content_area), 14); /* 14 + 2 * 5 = 24 */
 376   gtk_container_set_border_width (GTK_CONTAINER (action_area), 5);
 377   gtk_box_set_spacing (GTK_BOX (action_area), 6);
 378
 379   gtk_widget_show_all (hbox);
 380 }
 381
 382 static void
 383 setup_primary_label_font (GtkMessageDialog *dialog)
 384 {
 385   GtkMessageDialogPrivate *priv = dialog->priv;
 386   gint size;
 387   PangoFontDescription *font_desc;
 388   GtkStyleContext *context;
 389   GtkStateFlags state;
 390
 391   /* unset the font settings */
 392   gtk_widget_modify_font (priv->label, NULL);
 393
 394   if (priv->has_secondary_text && !priv->has_primary_markup)
 395     {
 396       context = gtk_widget_get_style_context (priv->label);
 397       state = gtk_widget_get_state_flags (priv->label);
 398
 399       size = pango_font_description_get_size (gtk_style_context_get_font (context, state));
 400       font_desc = pango_font_description_new ();
 401       pango_font_description_set_weight (font_desc, PANGO_WEIGHT_BOLD);
 402       pango_font_description_set_size (font_desc, size * PANGO_SCALE_LARGE);
 403       gtk_widget_modify_font (priv->label, font_desc);
 404       pango_font_description_free (font_desc);
 405     }
 406 }
 407
 408 static void
 409 setup_type (GtkMessageDialog *dialog,
 410             GtkMessageType    type)
 411 {
 412   GtkMessageDialogPrivate *priv = dialog->priv;
 413   const gchar *stock_id = NULL;
 414   AtkObject *atk_obj;
 415
 416   priv->message_type = type;
 417
 418   switch (type)
 419     {
 420     case GTK_MESSAGE_INFO:
 421       stock_id = GTK_STOCK_DIALOG_INFO;
 422       break;
 423
 424     case GTK_MESSAGE_QUESTION:
 425       stock_id = GTK_STOCK_DIALOG_QUESTION;
 426       break;
 427
 428     case GTK_MESSAGE_WARNING:
 429       stock_id = GTK_STOCK_DIALOG_WARNING;
 430       break;
 431
 432     case GTK_MESSAGE_ERROR:
 433       stock_id = GTK_STOCK_DIALOG_ERROR;
 434       break;
 435
 436     case GTK_MESSAGE_OTHER:
 437       break;
 438
 439     default:
 440       g_warning ("Unknown GtkMessageType %u", type);
 441       break;
 442     }
 443
 444   if (stock_id)
 445     gtk_image_set_from_stock (GTK_IMAGE (priv->image), stock_id,
 446                               GTK_ICON_SIZE_DIALOG);
 447
 448   atk_obj = gtk_widget_get_accessible (GTK_WIDGET (dialog));
 449   if (GTK_IS_ACCESSIBLE (atk_obj))
 450     {
 451       atk_object_set_role (atk_obj, ATK_ROLE_ALERT);
 452       if (stock_id)
 453         {
 454           GtkStockItem item;
 455
 456           gtk_stock_lookup (stock_id, &item);
 457           atk_object_set_name (atk_obj, item.label);
 458         }
 459     }
 460 }
 461
 462 static void
 463 gtk_message_dialog_set_property (GObject      *object,
 464                                  guint         prop_id,
 465                                  const GValue *value,
 466                                  GParamSpec   *pspec)
 467 {
 468   GtkMessageDialog *dialog = GTK_MESSAGE_DIALOG (object);
 469   GtkMessageDialogPrivate *priv = dialog->priv;
 470
 471   switch (prop_id)
 472     {
 473     case PROP_MESSAGE_TYPE:
 474       setup_type (dialog, g_value_get_enum (value));
 475       break;
 476     case PROP_BUTTONS:
 477       gtk_message_dialog_add_buttons (dialog, g_value_get_enum (value));
 478       break;
 479     case PROP_TEXT:
 480       if (priv->has_primary_markup)
 481         gtk_label_set_markup (GTK_LABEL (priv->label),
 482                               g_value_get_string (value));
 483       else
 484         gtk_label_set_text (GTK_LABEL (priv->label),
 485                             g_value_get_string (value));
 486       break;
 487     case PROP_USE_MARKUP:
 488       priv->has_primary_markup = g_value_get_boolean (value) != FALSE;
 489       gtk_label_set_use_markup (GTK_LABEL (priv->label),
 490                                 priv->has_primary_markup);
 491       setup_primary_label_font (dialog);
 492       break;
 493     case PROP_SECONDARY_TEXT:
 494       {
 495         const gchar *txt = g_value_get_string (value);
 496
 497         if (gtk_label_get_use_markup (GTK_LABEL (priv->secondary_label)))
 498           gtk_label_set_markup (GTK_LABEL (priv->secondary_label), txt);
 499         else
 500           gtk_label_set_text (GTK_LABEL (priv->secondary_label), txt);
 501
 502         if (txt)
 503           {
 504             priv->has_secondary_text = TRUE;
 505             gtk_widget_show (priv->secondary_label);
 506           }
 507         else
 508           {
 509             priv->has_secondary_text = FALSE;
 510             gtk_widget_hide (priv->secondary_label);
 511           }
 512         setup_primary_label_font (dialog);
 513       }
 514       break;
 515     case PROP_SECONDARY_USE_MARKUP:
 516       gtk_label_set_use_markup (GTK_LABEL (priv->secondary_label),
 517                                 g_value_get_boolean (value));
 518       break;
 519     case PROP_IMAGE:
 520       gtk_message_dialog_set_image (dialog, g_value_get_object (value));
 521       break;
 522
 523     default:
 524       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 525       break;
 526     }
 527 }
 528
 529 static void
 530 gtk_message_dialog_get_property (GObject     *object,
 531                                  guint        prop_id,
 532                                  GValue      *value,
 533                                  GParamSpec  *pspec)
 534 {
 535   GtkMessageDialog *dialog = GTK_MESSAGE_DIALOG (object);
 536   GtkMessageDialogPrivate *priv = dialog->priv;
 537
 538   switch (prop_id)
 539     {
 540     case PROP_MESSAGE_TYPE:
 541       g_value_set_enum (value, (GtkMessageType) priv->message_type);
 542       break;
 543     case PROP_TEXT:
 544       g_value_set_string (value, gtk_label_get_label (GTK_LABEL (priv->label)));
 545       break;
 546     case PROP_USE_MARKUP:
 547       g_value_set_boolean (value, priv->has_primary_markup);
 548       break;
 549     case PROP_SECONDARY_TEXT:
 550       if (priv->has_secondary_text)
 551       g_value_set_string (value,
 552                           gtk_label_get_label (GTK_LABEL (priv->secondary_label)));
 553       else
 554         g_value_set_string (value, NULL);
 555       break;
 556     case PROP_SECONDARY_USE_MARKUP:
 557       if (priv->has_secondary_text)
 558         g_value_set_boolean (value,
 559                              gtk_label_get_use_markup (GTK_LABEL (priv->secondary_label)));
 560       else
 561         g_value_set_boolean (value, FALSE);
 562       break;
 563     case PROP_IMAGE:
 564       g_value_set_object (value, priv->image);
 565       break;
 566     case PROP_MESSAGE_AREA:
 567       g_value_set_object (value, priv->message_area);
 568       break;
 569     default:
 570       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 571       break;
 572     }
 573 }
 574
 575 /**
 576  * gtk_message_dialog_new:
 577  * @parent: (allow-none): transient parent, or %NULL for none
 578  * @flags: flags
 579  * @type: type of message
 580  * @buttons: set of buttons to use
 581  * @message_format: (allow-none): printf()-style format string, or %NULL
 582  * @Varargs: arguments for @message_format
 583  *
 584  * Creates a new message dialog, which is a simple dialog with an icon
 585  * indicating the dialog type (error, warning, etc.) and some text the
 586  * user may want to see. When the user clicks a button a "response"
 587  * signal is emitted with response IDs from #GtkResponseType. See
 588  * #GtkDialog for more details.
 589  *
 590  * Return value: (transfer none): a new #GtkMessageDialog
 591  **/
 592 GtkWidget*
 593 gtk_message_dialog_new (GtkWindow     *parent,
 594                         GtkDialogFlags flags,
 595                         GtkMessageType type,
 596                         GtkButtonsType buttons,
 597                         const gchar   *message_format,
 598                         ...)
 599 {
 600   GtkWidget *widget;
 601   GtkDialog *dialog;
 602   gchar* msg = NULL;
 603   va_list args;
 604
 605   g_return_val_if_fail (parent == NULL || GTK_IS_WINDOW (parent), NULL);
 606
 607   widget = g_object_new (GTK_TYPE_MESSAGE_DIALOG,
 608                          "message-type", type,
 609                          "buttons", buttons,
 610                          NULL);
 611   dialog = GTK_DIALOG (widget);
 612
 613   if (message_format)
 614     {
 615       va_start (args, message_format);
 616       msg = g_strdup_vprintf (message_format, args);
 617       va_end (args);
 618
 619       gtk_label_set_text (GTK_LABEL (GTK_MESSAGE_DIALOG (widget)->priv->label),
 620                           msg);
 621
 622       g_free (msg);
 623     }
 624
 625   if (parent != NULL)
 626     gtk_window_set_transient_for (GTK_WINDOW (widget),
 627                                   GTK_WINDOW (parent));
 628
 629   if (flags & GTK_DIALOG_MODAL)
 630     gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
 631
 632   if (flags & GTK_DIALOG_DESTROY_WITH_PARENT)
 633     gtk_window_set_destroy_with_parent (GTK_WINDOW (dialog), TRUE);
 634
 635   return widget;
 636 }
 637
 638 /**
 639  * gtk_message_dialog_new_with_markup:
 640  * @parent: (allow-none): transient parent, or %NULL for none
 641  * @flags: flags
 642  * @type: type of message
 643  * @buttons: set of buttons to use
 644  * @message_format: (allow-none): printf()-style format string, or %NULL
 645  * @Varargs: arguments for @message_format
 646  *
 647  * Creates a new message dialog, which is a simple dialog with an icon
 648  * indicating the dialog type (error, warning, etc.) and some text which
 649  * is marked up with the <link linkend="PangoMarkupFormat">Pango text markup language</link>.
 650  * When the user clicks a button a "response" signal is emitted with
 651  * response IDs from #GtkResponseType. See #GtkDialog for more details.
 652  *
 653  * Special XML characters in the printf() arguments passed to this
 654  * function will automatically be escaped as necessary.
 655  * (See g_markup_printf_escaped() for how this is implemented.)
 656  * Usually this is what you want, but if you have an existing
 657  * Pango markup string that you want to use literally as the
 658  * label, then you need to use gtk_message_dialog_set_markup()
 659  * instead, since you can't pass the markup string either
 660  * as the format (it might contain '%' characters) or as a string
 661  * argument.
 662  * |[
 663  *  GtkWidget *dialog;
 664  *  dialog = gtk_message_dialog_new (main_application_window,
 665  *                                   GTK_DIALOG_DESTROY_WITH_PARENT,
 666  *                                   GTK_MESSAGE_ERROR,
 667  *                                   GTK_BUTTONS_CLOSE,
 668  *                                   NULL);
 669  *  gtk_message_dialog_set_markup (GTK_MESSAGE_DIALOG (dialog),
 670  *                                 markup);
 671  * ]|
 672  *
 673  * Return value: a new #GtkMessageDialog
 674  *
 675  * Since: 2.4
 676  **/
 677 GtkWidget*
 678 gtk_message_dialog_new_with_markup (GtkWindow     *parent,
 679                                     GtkDialogFlags flags,
 680                                     GtkMessageType type,
 681                                     GtkButtonsType buttons,
 682                                     const gchar   *message_format,
 683                                     ...)
 684 {
 685   GtkWidget *widget;
 686   va_list args;
 687   gchar *msg = NULL;
 688
 689   g_return_val_if_fail (parent == NULL || GTK_IS_WINDOW (parent), NULL);
 690
 691   widget = gtk_message_dialog_new (parent, flags, type, buttons, NULL);
 692
 693   if (message_format)
 694     {
 695       va_start (args, message_format);
 696       msg = g_markup_vprintf_escaped (message_format, args);
 697       va_end (args);
 698
 699       gtk_message_dialog_set_markup (GTK_MESSAGE_DIALOG (widget), msg);
 700
 701       g_free (msg);
 702     }
 703
 704   return widget;
 705 }
 706
 707 /**
 708  * gtk_message_dialog_set_image:
 709  * @dialog: a #GtkMessageDialog
 710  * @image: the image
 711  *
 712  * Sets the dialog's image to @image.
 713  *
 714  * Since: 2.10
 715  **/
 716 void
 717 gtk_message_dialog_set_image (GtkMessageDialog *dialog,
 718                               GtkWidget        *image)
 719 {
 720   GtkMessageDialogPrivate *priv;
 721   GtkWidget *parent;
 722
 723   g_return_if_fail (GTK_IS_MESSAGE_DIALOG (dialog));
 724   g_return_if_fail (image == NULL || GTK_IS_WIDGET (image));
 725
 726   priv = dialog->priv;
 727
 728   if (image == NULL)
 729     {
 730       image = gtk_image_new_from_stock (NULL, GTK_ICON_SIZE_DIALOG);
 731       gtk_widget_set_halign (image, GTK_ALIGN_CENTER);
 732       gtk_widget_set_valign (image, GTK_ALIGN_START);
 733     }
 734
 735   priv->message_type = GTK_MESSAGE_OTHER;
 736
 737   parent = gtk_widget_get_parent (priv->image);
 738   gtk_container_add (GTK_CONTAINER (parent), image);
 739   gtk_container_remove (GTK_CONTAINER (parent), priv->image);
 740   gtk_box_reorder_child (GTK_BOX (parent), image, 0);
 741
 742   priv->image = image;
 743
 744   g_object_notify (G_OBJECT (dialog), "image");
 745 }
 746
 747 /**
 748  * gtk_message_dialog_get_image:
 749  * @dialog: a #GtkMessageDialog
 750  *
 751  * Gets the dialog's image.
 752  *
 753  * Return value: (transfer none): the dialog's image
 754  *
 755  * Since: 2.14
 756  **/
 757 GtkWidget *
 758 gtk_message_dialog_get_image (GtkMessageDialog *dialog)
 759 {
 760   g_return_val_if_fail (GTK_IS_MESSAGE_DIALOG (dialog), NULL);
 761
 762   return dialog->priv->image;
 763 }
 764
 765 /**
 766  * gtk_message_dialog_set_markup:
 767  * @message_dialog: a #GtkMessageDialog
 768  * @str: markup string (see <link linkend="PangoMarkupFormat">Pango markup format</link>)
 769  *
 770  * Sets the text of the message dialog to be @str, which is marked
 771  * up with the <link linkend="PangoMarkupFormat">Pango text markup
 772  * language</link>.
 773  *
 774  * Since: 2.4
 775  **/
 776 void
 777 gtk_message_dialog_set_markup (GtkMessageDialog *message_dialog,
 778                                const gchar      *str)
 779 {
 780   GtkMessageDialogPrivate *priv;
 781
 782   g_return_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog));
 783
 784   priv = message_dialog->priv;
 785
 786   priv->has_primary_markup = TRUE;
 787   gtk_label_set_markup (GTK_LABEL (priv->label), str);
 788 }
 789
 790 /**
 791  * gtk_message_dialog_format_secondary_text:
 792  * @message_dialog: a #GtkMessageDialog
 793  * @message_format: (allow-none): printf()-style format string, or %NULL
 794  * @Varargs: arguments for @message_format
 795  *
 796  * Sets the secondary text of the message dialog to be @message_format
 797  * (with printf()-style).
 798  *
 799  * Note that setting a secondary text makes the primary text become
 800  * bold, unless you have provided explicit markup.
 801  *
 802  * Since: 2.6
 803  **/
 804 void
 805 gtk_message_dialog_format_secondary_text (GtkMessageDialog *message_dialog,
 806                                           const gchar      *message_format,
 807                                           ...)
 808 {
 809   va_list args;
 810   gchar *msg = NULL;
 811   GtkMessageDialogPrivate *priv;
 812
 813   g_return_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog));
 814
 815   priv = message_dialog->priv;
 816
 817   if (message_format)
 818     {
 819       priv->has_secondary_text = TRUE;
 820
 821       va_start (args, message_format);
 822       msg = g_strdup_vprintf (message_format, args);
 823       va_end (args);
 824
 825       gtk_widget_show (priv->secondary_label);
 826       gtk_label_set_text (GTK_LABEL (priv->secondary_label), msg);
 827
 828       g_free (msg);
 829     }
 830   else
 831     {
 832       priv->has_secondary_text = FALSE;
 833       gtk_widget_hide (priv->secondary_label);
 834     }
 835
 836   setup_primary_label_font (message_dialog);
 837 }
 838
 839 /**
 840  * gtk_message_dialog_format_secondary_markup:
 841  * @message_dialog: a #GtkMessageDialog
 842  * @message_format: printf()-style markup string (see
 843      <link linkend="PangoMarkupFormat">Pango markup format</link>), or %NULL
 844  * @Varargs: arguments for @message_format
 845  *
 846  * Sets the secondary text of the message dialog to be @message_format (with
 847  * printf()-style), which is marked up with the
 848  * <link linkend="PangoMarkupFormat">Pango text markup language</link>.
 849  *
 850  * Note that setting a secondary text makes the primary text become
 851  * bold, unless you have provided explicit markup.
 852  *
 853  * Due to an oversight, this function does not escape special XML characters
 854  * like gtk_message_dialog_new_with_markup() does. Thus, if the arguments
 855  * may contain special XML characters, you should use g_markup_printf_escaped()
 856  * to escape it.
 857
 858  * <informalexample><programlisting>
 859  * gchar *msg;
 860  *
 861  * msg = g_markup_printf_escaped (message_format, ...);
 862  * gtk_message_dialog_format_secondary_markup (message_dialog, "&percnt;s", msg);
 863  * g_free (msg);
 864  * </programlisting></informalexample>
 865  *
 866  * Since: 2.6
 867  **/
 868 void
 869 gtk_message_dialog_format_secondary_markup (GtkMessageDialog *message_dialog,
 870                                             const gchar      *message_format,
 871                                             ...)
 872 {
 873   va_list args;
 874   gchar *msg = NULL;
 875   GtkMessageDialogPrivate *priv;
 876
 877   g_return_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog));
 878
 879   priv = message_dialog->priv;
 880
 881   if (message_format)
 882     {
 883       priv->has_secondary_text = TRUE;
 884
 885       va_start (args, message_format);
 886       msg = g_strdup_vprintf (message_format, args);
 887       va_end (args);
 888
 889       gtk_widget_show (priv->secondary_label);
 890       gtk_label_set_markup (GTK_LABEL (priv->secondary_label), msg);
 891
 892       g_free (msg);
 893     }
 894   else
 895     {
 896       priv->has_secondary_text = FALSE;
 897       gtk_widget_hide (priv->secondary_label);
 898     }
 899
 900   setup_primary_label_font (message_dialog);
 901 }
 902
 903 /**
 904  * gtk_message_dialog_get_message_area:
 905  * @message_dialog: a #GtkMessageDialog
 906  *
 907  * Returns the message area of the dialog. This is the box where the
 908  * dialog's primary and secondary labels are packed. You can add your
 909  * own extra content to that box and it will appear below those labels,
 910  * on the right side of the dialog's image (or on the left for right-to-left
 911  * languages).  See gtk_dialog_get_content_area() for the corresponding
 912  * function in the parent #GtkDialog.
 913  *
 914  * Return value: (transfer none): A #GtkVBox corresponding to the
 915  *     "message area" in the @message_dialog.
 916  *
 917  * Since: 2.22
 918  **/
 919 GtkWidget *
 920 gtk_message_dialog_get_message_area (GtkMessageDialog *message_dialog)
 921 {
 922   g_return_val_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog), NULL);
 923
 924   return message_dialog->priv->message_area;
 925 }
 926
 927 static void
 928 gtk_message_dialog_add_buttons (GtkMessageDialog* message_dialog,
 929                                 GtkButtonsType buttons)
 930 {
 931   GtkDialog* dialog = GTK_DIALOG (message_dialog);
 932
 933   switch (buttons)
 934     {
 935     case GTK_BUTTONS_NONE:
 936       /* nothing */
 937       break;
 938
 939     case GTK_BUTTONS_OK:
 940       gtk_dialog_add_button (dialog,
 941                              GTK_STOCK_OK,
 942                              GTK_RESPONSE_OK);
 943       break;
 944
 945     case GTK_BUTTONS_CLOSE:
 946       gtk_dialog_add_button (dialog,
 947                              GTK_STOCK_CLOSE,
 948                              GTK_RESPONSE_CLOSE);
 949       break;
 950
 951     case GTK_BUTTONS_CANCEL:
 952       gtk_dialog_add_button (dialog,
 953                              GTK_STOCK_CANCEL,
 954                              GTK_RESPONSE_CANCEL);
 955       break;
 956
 957     case GTK_BUTTONS_YES_NO:
 958       gtk_dialog_add_button (dialog,
 959                              GTK_STOCK_NO,
 960                              GTK_RESPONSE_NO);
 961       gtk_dialog_add_button (dialog,
 962                              GTK_STOCK_YES,
 963                              GTK_RESPONSE_YES);
 964       gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
 965                                                GTK_RESPONSE_YES,
 966                                                GTK_RESPONSE_NO,
 967                                                -1);
 968       break;
 969
 970     case GTK_BUTTONS_OK_CANCEL:
 971       gtk_dialog_add_button (dialog,
 972                              GTK_STOCK_CANCEL,
 973                              GTK_RESPONSE_CANCEL);
 974       gtk_dialog_add_button (dialog,
 975                              GTK_STOCK_OK,
 976                              GTK_RESPONSE_OK);
 977       gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
 978                                                GTK_RESPONSE_OK,
 979                                                GTK_RESPONSE_CANCEL,
 980                                                -1);
 981       break;
 982
 983     default:
 984       g_warning ("Unknown GtkButtonsType");
 985       break;
 986     }
 987
 988   g_object_notify (G_OBJECT (message_dialog), "buttons");
 989 }
 990
 991 static void
 992 gtk_message_dialog_style_updated (GtkWidget *widget)
 993 {
 994   GtkMessageDialog *dialog = GTK_MESSAGE_DIALOG (widget);
 995   GtkWidget *parent;
 996   gint border_width;
 997
 998   parent = gtk_widget_get_parent (gtk_message_dialog_get_image (dialog));
 999
1000   if (parent)
1001     {
1002       gtk_widget_style_get (widget, "message-border",
1003                             &border_width, NULL);
1004
1005       gtk_container_set_border_width (GTK_CONTAINER (parent),
1006                                       MAX (0, border_width - 7));
1007     }
1008
1009   setup_primary_label_font (dialog);
1010
1011   GTK_WIDGET_CLASS (gtk_message_dialog_parent_class)->style_updated (widget);
1012 }