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, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 /*
  20  * Modified by the GTK+ Team and others 1997-2003.  See the AUTHORS
  21  * file for a list of people on the GTK+ Team.  See the ChangeLog
  22  * files for a list of changes.  These files are distributed with
  23  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  24  */
  25
  26 #include "config.h"
  27
  28 #include <string.h>
  29
  30 #include "gtkmessagedialog.h"
  31 #include "gtkaccessible.h"
  32 #include "gtkbuildable.h"
  33 #include "gtklabel.h"
  34 #include "gtkbox.h"
  35 #include "gtkimage.h"
  36 #include "gtkstock.h"
  37 #include "gtkiconfactory.h"
  38 #include "gtkintl.h"
  39 #include "gtkprivate.h"
  40 #include "gtktypebuiltins.h"
  41
  42 /**
  43  * SECTION:gtkmessagedialog
  44  * @Short_description: A convenient message window
  45  * @Title: GtkMessageDialog
  46  * @See_also:#GtkDialog
  47  *
  48  * #GtkMessageDialog presents a dialog with an image representing the type of
  49  * message (Error, Question, etc.) alongside some message text. It's simply a
  50  * convenience widget; you could construct the equivalent of #GtkMessageDialog
  51  * from #GtkDialog without too much effort, but #GtkMessageDialog saves typing.
  52  *
  53  * One difference from #GtkDialog is that #GtkMessageDialog sets the
  54  * #GtkWindow:skip-taskbar-hint property to %TRUE, so that the dialog is hidden
  55  * from the taskbar by default.
  56  *
  57  * The easiest way to do a modal message dialog is to use gtk_dialog_run(), though
  58  * you can also pass in the %GTK_DIALOG_MODAL flag, gtk_dialog_run() automatically
  59  * makes the dialog modal and waits for the user to respond to it. gtk_dialog_run()
  60  * returns when any dialog button is clicked.
  61  * <example>
  62  * <title>A modal dialog.</title>
  63  * <programlisting>
  64  *  dialog = gtk_message_dialog_new (main_application_window,
  65  *                                   GTK_DIALOG_DESTROY_WITH_PARENT,
  66  *                                   GTK_MESSAGE_ERROR,
  67  *                                   GTK_BUTTONS_CLOSE,
  68  *                                   "Error loading file '&percnt;s': &percnt;s",
  69  *                                   filename, g_strerror (errno));
  70  *  gtk_dialog_run (GTK_DIALOG (dialog));
  71  *  gtk_widget_destroy (dialog);
  72  * </programlisting>
  73  * </example>
  74  * You might do a non-modal #GtkMessageDialog as follows:
  75  * <example>
  76  * <title>A non-modal dialog.</title>
  77  * <programlisting>
  78  *  dialog = gtk_message_dialog_new (main_application_window,
  79  *                                   GTK_DIALOG_DESTROY_WITH_PARENT,
  80  *                                   GTK_MESSAGE_ERROR,
  81  *                                   GTK_BUTTONS_CLOSE,
  82  *                                   "Error loading file '&percnt;s': &percnt;s",
  83  *                                   filename, g_strerror (errno));
  84  *
  85  *  /&ast; Destroy the dialog when the user responds to it (e.g. clicks a button) &ast;/
  86  *  g_signal_connect_swapped (dialog, "response",
  87  *                            G_CALLBACK (gtk_widget_destroy),
  88  *                            dialog);
  89  * </programlisting>
  90  * </example>
  91  *
  92  * <refsect2 id="GtkMessageDialog-BUILDER-UI">
  93  * <title>GtkMessageDialog as GtkBuildable</title>
  94  * <para>
  95  * The GtkMessageDialog implementation of the GtkBuildable interface exposes
  96  * the message area as an internal child with the name "message_area".
  97  * </para>
  98  * </refsect2>
  99  */
 100
 101 struct _GtkMessageDialogPrivate
 102 {
 103   GtkWidget     *image;
 104   GtkWidget     *label;
 105   GtkWidget     *message_area; /* vbox for the primary and secondary labels, and any extra content from the caller */
 106   GtkWidget     *secondary_label;
 107
 108   guint          has_primary_markup : 1;
 109   guint          has_secondary_text : 1;
 110   guint          message_type       : 3;
 111 };
 112
 113 static void gtk_message_dialog_style_updated (GtkWidget             *widget);
 114
 115 static void gtk_message_dialog_set_property (GObject          *object,
 116                                              guint             prop_id,
 117                                              const GValue     *value,
 118                                              GParamSpec       *pspec);
 119 static void gtk_message_dialog_get_property (GObject          *object,
 120                                              guint             prop_id,
 121                                              GValue           *value,
 122                                              GParamSpec       *pspec);
 123 static void gtk_message_dialog_add_buttons  (GtkMessageDialog *message_dialog,
 124                                              GtkButtonsType    buttons);
 125 static void      gtk_message_dialog_buildable_interface_init     (GtkBuildableIface *iface);
 126 static GObject * gtk_message_dialog_buildable_get_internal_child (GtkBuildable  *buildable,
 127                                                                   GtkBuilder    *builder,
 128                                                                   const gchar   *childname);
 129
 130
 131 enum {
 132   PROP_0,
 133   PROP_MESSAGE_TYPE,
 134   PROP_BUTTONS,
 135   PROP_TEXT,
 136   PROP_USE_MARKUP,
 137   PROP_SECONDARY_TEXT,
 138   PROP_SECONDARY_USE_MARKUP,
 139   PROP_IMAGE,
 140   PROP_MESSAGE_AREA
 141 };
 142
 143 G_DEFINE_TYPE_WITH_CODE (GtkMessageDialog, gtk_message_dialog, GTK_TYPE_DIALOG,
 144                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 145                                                 gtk_message_dialog_buildable_interface_init))
 146
 147 static GtkBuildableIface *parent_buildable_iface;
 148
 149 static void
 150 gtk_message_dialog_buildable_interface_init (GtkBuildableIface *iface)
 151 {
 152   parent_buildable_iface = g_type_interface_peek_parent (iface);
 153   iface->get_internal_child = gtk_message_dialog_buildable_get_internal_child;
 154   iface->custom_tag_start = parent_buildable_iface->custom_tag_start;
 155   iface->custom_finished = parent_buildable_iface->custom_finished;
 156 }
 157
 158 static GObject *
 159 gtk_message_dialog_buildable_get_internal_child (GtkBuildable *buildable,
 160                                                  GtkBuilder   *builder,
 161                                                  const gchar  *childname)
 162 {
 163   if (strcmp (childname, "message_area") == 0)
 164     return G_OBJECT (gtk_message_dialog_get_message_area (GTK_MESSAGE_DIALOG (buildable)));
 165
 166   return parent_buildable_iface->get_internal_child (buildable, builder, childname);
 167 }
 168
 169
 170 static void
 171 gtk_message_dialog_class_init (GtkMessageDialogClass *class)
 172 {
 173   GtkWidgetClass *widget_class;
 174   GObjectClass *gobject_class;
 175
 176   widget_class = GTK_WIDGET_CLASS (class);
 177   gobject_class = G_OBJECT_CLASS (class);
 178
 179   widget_class->style_updated = gtk_message_dialog_style_updated;
 180
 181   gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_ALERT);
 182
 183   gobject_class->set_property = gtk_message_dialog_set_property;
 184   gobject_class->get_property = gtk_message_dialog_get_property;
 185
 186   gtk_widget_class_install_style_property (widget_class,
 187                                            g_param_spec_int ("message-border",
 188                                                              P_("Image/label border"),
 189                                                              P_("Width of border around the label and image in the message dialog"),
 190                                                              0,
 191                                                              G_MAXINT,
 192                                                              12,
 193                                                              GTK_PARAM_READABLE));
 194
 195   /**
 196    * GtkMessageDialog:message-type:
 197    *
 198    * The type of the message. The type is used to determine
 199    * the image that is shown in the dialog, unless the image is
 200    * explicitly set by the ::image property.
 201    */
 202   g_object_class_install_property (gobject_class,
 203                                    PROP_MESSAGE_TYPE,
 204                                    g_param_spec_enum ("message-type",
 205                                                       P_("Message Type"),
 206                                                       P_("The type of message"),
 207                                                       GTK_TYPE_MESSAGE_TYPE,
 208                                                       GTK_MESSAGE_INFO,
 209                                                       GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
 210   g_object_class_install_property (gobject_class,
 211                                    PROP_BUTTONS,
 212                                    g_param_spec_enum ("buttons",
 213                                                       P_("Message Buttons"),
 214                                                       P_("The buttons shown in the message dialog"),
 215                                                       GTK_TYPE_BUTTONS_TYPE,
 216                                                       GTK_BUTTONS_NONE,
 217                                                       GTK_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
 218
 219   /**
 220    * GtkMessageDialog:text:
 221    *
 222    * The primary text of the message dialog. If the dialog has
 223    * a secondary text, this will appear as the title.
 224    *
 225    * Since: 2.10
 226    */
 227   g_object_class_install_property (gobject_class,
 228                                    PROP_TEXT,
 229                                    g_param_spec_string ("text",
 230                                                         P_("Text"),
 231                                                         P_("The primary text of the message dialog"),
 232                                                         "",
 233                                                         GTK_PARAM_READWRITE));
 234
 235   /**
 236    * GtkMessageDialog:use-markup:
 237    *
 238    * %TRUE if the primary text of the dialog includes Pango markup.
 239    * See pango_parse_markup().
 240    *
 241    * Since: 2.10
 242    */
 243   g_object_class_install_property (gobject_class,
 244                                    PROP_USE_MARKUP,
 245                                    g_param_spec_boolean ("use-markup",
 246                                                          P_("Use Markup"),
 247                                                          P_("The primary text of the title includes Pango markup."),
 248                                                          FALSE,
 249                                                          GTK_PARAM_READWRITE));
 250
 251   /**
 252    * GtkMessageDialog:secondary-text:
 253    *
 254    * The secondary text of the message dialog.
 255    *
 256    * Since: 2.10
 257    */
 258   g_object_class_install_property (gobject_class,
 259                                    PROP_SECONDARY_TEXT,
 260                                    g_param_spec_string ("secondary-text",
 261                                                         P_("Secondary Text"),
 262                                                         P_("The secondary text of the message dialog"),
 263                                                         NULL,
 264                                                         GTK_PARAM_READWRITE));
 265
 266   /**
 267    * GtkMessageDialog:secondary-use-markup:
 268    *
 269    * %TRUE if the secondary text of the dialog includes Pango markup.
 270    * See pango_parse_markup().
 271    *
 272    * Since: 2.10
 273    */
 274   g_object_class_install_property (gobject_class,
 275                                    PROP_SECONDARY_USE_MARKUP,
 276                                    g_param_spec_boolean ("secondary-use-markup",
 277                                                          P_("Use Markup in secondary"),
 278                                                          P_("The secondary text includes Pango markup."),
 279                                                          FALSE,
 280                                                          GTK_PARAM_READWRITE));
 281
 282   /**
 283    * GtkMessageDialog:image:
 284    *
 285    * The image for this dialog.
 286    *
 287    * Since: 2.10
 288    */
 289   g_object_class_install_property (gobject_class,
 290                                    PROP_IMAGE,
 291                                    g_param_spec_object ("image",
 292                                                         P_("Image"),
 293                                                         P_("The image"),
 294                                                         GTK_TYPE_WIDGET,
 295                                                         GTK_PARAM_READWRITE));
 296
 297   /**
 298    * GtkMessageDialog:message-area:
 299    *
 300    * The #GtkVBox that corresponds to the message area of this dialog.  See
 301    * gtk_message_dialog_get_message_area() for a detailed description of this
 302    * area.
 303    *
 304    * Since: 2.22
 305    */
 306   g_object_class_install_property (gobject_class,
 307                                    PROP_MESSAGE_AREA,
 308                                    g_param_spec_object ("message-area",
 309                                                         P_("Message area"),
 310                                                         P_("GtkVBox that holds the dialog's primary and secondary labels"),
 311                                                         GTK_TYPE_WIDGET,
 312                                                         GTK_PARAM_READABLE));
 313
 314   g_type_class_add_private (gobject_class, sizeof (GtkMessageDialogPrivate));
 315 }
 316
 317 static void
 318 gtk_message_dialog_init (GtkMessageDialog *dialog)
 319 {
 320   GtkWidget *hbox;
 321   GtkDialog *message_dialog = GTK_DIALOG (dialog);
 322   GtkWidget *action_area, *content_area;
 323   GtkMessageDialogPrivate *priv;
 324
 325   dialog->priv = G_TYPE_INSTANCE_GET_PRIVATE (dialog,
 326                                               GTK_TYPE_MESSAGE_DIALOG,
 327                                               GtkMessageDialogPrivate);
 328   priv = dialog->priv;
 329
 330   content_area = gtk_dialog_get_content_area (message_dialog);
 331   action_area = gtk_dialog_get_action_area (message_dialog);
 332
 333   gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
 334   gtk_window_set_title (GTK_WINDOW (dialog), "");
 335   gtk_window_set_skip_taskbar_hint (GTK_WINDOW (dialog), TRUE);
 336
 337   priv->has_primary_markup = FALSE;
 338   priv->has_secondary_text = FALSE;
 339   priv->secondary_label = gtk_label_new (NULL);
 340   gtk_widget_set_no_show_all (priv->secondary_label, TRUE);
 341
 342   priv->label = gtk_label_new (NULL);
 343   priv->image = gtk_image_new_from_stock (NULL, GTK_ICON_SIZE_DIALOG);
 344   g_object_set (priv->image, "use-fallback", TRUE, NULL);
 345   gtk_widget_set_halign (priv->image, GTK_ALIGN_CENTER);
 346   gtk_widget_set_valign (priv->image, GTK_ALIGN_START);
 347
 348   gtk_label_set_line_wrap  (GTK_LABEL (priv->label), TRUE);
 349   gtk_label_set_selectable (GTK_LABEL (priv->label), TRUE);
 350   gtk_widget_set_halign (priv->label, GTK_ALIGN_START);
 351   gtk_widget_set_valign (priv->label, GTK_ALIGN_START);
 352
 353   gtk_label_set_line_wrap  (GTK_LABEL (priv->secondary_label), TRUE);
 354   gtk_label_set_selectable (GTK_LABEL (priv->secondary_label), TRUE);
 355   gtk_widget_set_halign (priv->secondary_label, GTK_ALIGN_START);
 356   gtk_widget_set_valign (priv->secondary_label, GTK_ALIGN_START);
 357
 358   gtk_misc_set_alignment (GTK_MISC (priv->label), 0.0, 0.0);
 359   gtk_misc_set_alignment (GTK_MISC (priv->secondary_label), 0.0, 0.0);
 360
 361   hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
 362   priv->message_area = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
 363
 364   gtk_box_pack_start (GTK_BOX (priv->message_area), priv->label,
 365                       FALSE, FALSE, 0);
 366
 367   gtk_box_pack_start (GTK_BOX (priv->message_area), priv->secondary_label,
 368                       TRUE, TRUE, 0);
 369
 370   gtk_box_pack_start (GTK_BOX (hbox), priv->image,
 371                       FALSE, FALSE, 0);
 372
 373   gtk_box_pack_start (GTK_BOX (hbox), priv->message_area,
 374                       TRUE, TRUE, 0);
 375
 376   gtk_box_pack_start (GTK_BOX (content_area),
 377                       hbox,
 378                       FALSE, FALSE, 0);
 379
 380   gtk_container_set_border_width (GTK_CONTAINER (dialog), 5);
 381   gtk_container_set_border_width (GTK_CONTAINER (hbox), 5);
 382   gtk_box_set_spacing (GTK_BOX (content_area), 14); /* 14 + 2 * 5 = 24 */
 383   gtk_container_set_border_width (GTK_CONTAINER (action_area), 5);
 384   gtk_box_set_spacing (GTK_BOX (action_area), 6);
 385
 386   gtk_message_dialog_style_updated (GTK_WIDGET (dialog));
 387
 388   gtk_widget_show_all (hbox);
 389 }
 390
 391 static void
 392 setup_primary_label_font (GtkMessageDialog *dialog)
 393 {
 394   GtkMessageDialogPrivate *priv = dialog->priv;
 395
 396   if (!priv->has_primary_markup)
 397     {
 398       PangoAttrList *attributes;
 399       PangoAttribute *attr;
 400
 401       attributes = pango_attr_list_new ();
 402
 403       attr = pango_attr_weight_new (PANGO_WEIGHT_BOLD);
 404       pango_attr_list_insert (attributes, attr);
 405
 406       if (priv->has_secondary_text)
 407         {
 408           attr = pango_attr_scale_new (PANGO_SCALE_LARGE);
 409           pango_attr_list_insert (attributes, attr);
 410         }
 411
 412       gtk_label_set_attributes (GTK_LABEL (priv->label), attributes);
 413       pango_attr_list_unref (attributes);
 414     }
 415   else
 416     {
 417       /* unset the font settings */
 418       gtk_label_set_attributes (GTK_LABEL (priv->label), NULL);
 419     }
 420 }
 421
 422 static void
 423 setup_type (GtkMessageDialog *dialog,
 424             GtkMessageType    type)
 425 {
 426   GtkMessageDialogPrivate *priv = dialog->priv;
 427   const gchar *stock_id = NULL;
 428   AtkObject *atk_obj;
 429   GIcon *gicon = NULL;
 430
 431   priv->message_type = type;
 432
 433   switch (type)
 434     {
 435     case GTK_MESSAGE_INFO:
 436       stock_id = GTK_STOCK_DIALOG_INFO;
 437       gicon = g_themed_icon_new_with_default_fallbacks ("dialog-information-symbolic");
 438       break;
 439
 440     case GTK_MESSAGE_QUESTION:
 441       stock_id = GTK_STOCK_DIALOG_QUESTION;
 442       gicon = g_themed_icon_new_with_default_fallbacks ("dialog-question-symbolic");
 443       break;
 444
 445     case GTK_MESSAGE_WARNING:
 446       stock_id = GTK_STOCK_DIALOG_WARNING;
 447       gicon = g_themed_icon_new_with_default_fallbacks ("dialog-warning-symbolic");
 448       break;
 449
 450     case GTK_MESSAGE_ERROR:
 451       stock_id = GTK_STOCK_DIALOG_ERROR;
 452       gicon = g_themed_icon_new_with_default_fallbacks ("dialog-error-symbolic");
 453       break;
 454
 455     case GTK_MESSAGE_OTHER:
 456       break;
 457
 458     default:
 459       g_warning ("Unknown GtkMessageType %u", type);
 460       break;
 461     }
 462
 463   gtk_image_set_from_gicon (GTK_IMAGE (priv->image), gicon, GTK_ICON_SIZE_DIALOG);
 464   if (gicon)
 465     g_object_unref (gicon);
 466
 467   atk_obj = gtk_widget_get_accessible (GTK_WIDGET (dialog));
 468   if (GTK_IS_ACCESSIBLE (atk_obj))
 469     {
 470       atk_object_set_role (atk_obj, ATK_ROLE_ALERT);
 471       if (stock_id)
 472         {
 473           GtkStockItem item;
 474
 475           gtk_stock_lookup (stock_id, &item);
 476           atk_object_set_name (atk_obj, item.label);
 477         }
 478     }
 479 }
 480
 481 static void
 482 gtk_message_dialog_set_property (GObject      *object,
 483                                  guint         prop_id,
 484                                  const GValue *value,
 485                                  GParamSpec   *pspec)
 486 {
 487   GtkMessageDialog *dialog = GTK_MESSAGE_DIALOG (object);
 488   GtkMessageDialogPrivate *priv = dialog->priv;
 489
 490   switch (prop_id)
 491     {
 492     case PROP_MESSAGE_TYPE:
 493       setup_type (dialog, g_value_get_enum (value));
 494       break;
 495     case PROP_BUTTONS:
 496       gtk_message_dialog_add_buttons (dialog, g_value_get_enum (value));
 497       break;
 498     case PROP_TEXT:
 499       if (priv->has_primary_markup)
 500         gtk_label_set_markup (GTK_LABEL (priv->label),
 501                               g_value_get_string (value));
 502       else
 503         gtk_label_set_text (GTK_LABEL (priv->label),
 504                             g_value_get_string (value));
 505       break;
 506     case PROP_USE_MARKUP:
 507       priv->has_primary_markup = g_value_get_boolean (value) != FALSE;
 508       gtk_label_set_use_markup (GTK_LABEL (priv->label),
 509                                 priv->has_primary_markup);
 510       setup_primary_label_font (dialog);
 511       break;
 512     case PROP_SECONDARY_TEXT:
 513       {
 514         const gchar *txt = g_value_get_string (value);
 515
 516         if (gtk_label_get_use_markup (GTK_LABEL (priv->secondary_label)))
 517           gtk_label_set_markup (GTK_LABEL (priv->secondary_label), txt);
 518         else
 519           gtk_label_set_text (GTK_LABEL (priv->secondary_label), txt);
 520
 521         if (txt)
 522           {
 523             priv->has_secondary_text = TRUE;
 524             gtk_widget_show (priv->secondary_label);
 525           }
 526         else
 527           {
 528             priv->has_secondary_text = FALSE;
 529             gtk_widget_hide (priv->secondary_label);
 530           }
 531         setup_primary_label_font (dialog);
 532       }
 533       break;
 534     case PROP_SECONDARY_USE_MARKUP:
 535       gtk_label_set_use_markup (GTK_LABEL (priv->secondary_label),
 536                                 g_value_get_boolean (value));
 537       break;
 538     case PROP_IMAGE:
 539       gtk_message_dialog_set_image (dialog, g_value_get_object (value));
 540       break;
 541
 542     default:
 543       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 544       break;
 545     }
 546 }
 547
 548 static void
 549 gtk_message_dialog_get_property (GObject     *object,
 550                                  guint        prop_id,
 551                                  GValue      *value,
 552                                  GParamSpec  *pspec)
 553 {
 554   GtkMessageDialog *dialog = GTK_MESSAGE_DIALOG (object);
 555   GtkMessageDialogPrivate *priv = dialog->priv;
 556
 557   switch (prop_id)
 558     {
 559     case PROP_MESSAGE_TYPE:
 560       g_value_set_enum (value, (GtkMessageType) priv->message_type);
 561       break;
 562     case PROP_TEXT:
 563       g_value_set_string (value, gtk_label_get_label (GTK_LABEL (priv->label)));
 564       break;
 565     case PROP_USE_MARKUP:
 566       g_value_set_boolean (value, priv->has_primary_markup);
 567       break;
 568     case PROP_SECONDARY_TEXT:
 569       if (priv->has_secondary_text)
 570       g_value_set_string (value,
 571                           gtk_label_get_label (GTK_LABEL (priv->secondary_label)));
 572       else
 573         g_value_set_string (value, NULL);
 574       break;
 575     case PROP_SECONDARY_USE_MARKUP:
 576       if (priv->has_secondary_text)
 577         g_value_set_boolean (value,
 578                              gtk_label_get_use_markup (GTK_LABEL (priv->secondary_label)));
 579       else
 580         g_value_set_boolean (value, FALSE);
 581       break;
 582     case PROP_IMAGE:
 583       g_value_set_object (value, priv->image);
 584       break;
 585     case PROP_MESSAGE_AREA:
 586       g_value_set_object (value, priv->message_area);
 587       break;
 588     default:
 589       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 590       break;
 591     }
 592 }
 593
 594 /**
 595  * gtk_message_dialog_new:
 596  * @parent: (allow-none): transient parent, or %NULL for none
 597  * @flags: flags
 598  * @type: type of message
 599  * @buttons: set of buttons to use
 600  * @message_format: (allow-none): printf()-style format string, or %NULL
 601  * @...: arguments for @message_format
 602  *
 603  * Creates a new message dialog, which is a simple dialog with an icon
 604  * indicating the dialog type (error, warning, etc.) and some text the
 605  * user may want to see. When the user clicks a button a "response"
 606  * signal is emitted with response IDs from #GtkResponseType. See
 607  * #GtkDialog for more details.
 608  *
 609  * Return value: (transfer none): a new #GtkMessageDialog
 610  */
 611 GtkWidget*
 612 gtk_message_dialog_new (GtkWindow     *parent,
 613                         GtkDialogFlags flags,
 614                         GtkMessageType type,
 615                         GtkButtonsType buttons,
 616                         const gchar   *message_format,
 617                         ...)
 618 {
 619   GtkWidget *widget;
 620   GtkDialog *dialog;
 621   gchar* msg = NULL;
 622   va_list args;
 623
 624   g_return_val_if_fail (parent == NULL || GTK_IS_WINDOW (parent), NULL);
 625
 626   widget = g_object_new (GTK_TYPE_MESSAGE_DIALOG,
 627                          "message-type", type,
 628                          "buttons", buttons,
 629                          NULL);
 630   dialog = GTK_DIALOG (widget);
 631
 632   if (message_format)
 633     {
 634       va_start (args, message_format);
 635       msg = g_strdup_vprintf (message_format, args);
 636       va_end (args);
 637
 638       gtk_label_set_text (GTK_LABEL (GTK_MESSAGE_DIALOG (widget)->priv->label),
 639                           msg);
 640
 641       g_free (msg);
 642     }
 643
 644   if (parent != NULL)
 645     gtk_window_set_transient_for (GTK_WINDOW (widget),
 646                                   GTK_WINDOW (parent));
 647
 648   if (flags & GTK_DIALOG_MODAL)
 649     gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
 650
 651   if (flags & GTK_DIALOG_DESTROY_WITH_PARENT)
 652     gtk_window_set_destroy_with_parent (GTK_WINDOW (dialog), TRUE);
 653
 654   return widget;
 655 }
 656
 657 /**
 658  * gtk_message_dialog_new_with_markup:
 659  * @parent: (allow-none): transient parent, or %NULL for none
 660  * @flags: flags
 661  * @type: type of message
 662  * @buttons: set of buttons to use
 663  * @message_format: (allow-none): printf()-style format string, or %NULL
 664  * @...: arguments for @message_format
 665  *
 666  * Creates a new message dialog, which is a simple dialog with an icon
 667  * indicating the dialog type (error, warning, etc.) and some text which
 668  * is marked up with the <link linkend="PangoMarkupFormat">Pango text markup language</link>.
 669  * When the user clicks a button a "response" signal is emitted with
 670  * response IDs from #GtkResponseType. See #GtkDialog for more details.
 671  *
 672  * Special XML characters in the printf() arguments passed to this
 673  * function will automatically be escaped as necessary.
 674  * (See g_markup_printf_escaped() for how this is implemented.)
 675  * Usually this is what you want, but if you have an existing
 676  * Pango markup string that you want to use literally as the
 677  * label, then you need to use gtk_message_dialog_set_markup()
 678  * instead, since you can't pass the markup string either
 679  * as the format (it might contain '%' characters) or as a string
 680  * argument.
 681  * |[
 682  *  GtkWidget *dialog;
 683  *  dialog = gtk_message_dialog_new (main_application_window,
 684  *                                   GTK_DIALOG_DESTROY_WITH_PARENT,
 685  *                                   GTK_MESSAGE_ERROR,
 686  *                                   GTK_BUTTONS_CLOSE,
 687  *                                   NULL);
 688  *  gtk_message_dialog_set_markup (GTK_MESSAGE_DIALOG (dialog),
 689  *                                 markup);
 690  * ]|
 691  *
 692  * Return value: a new #GtkMessageDialog
 693  *
 694  * Since: 2.4
 695  **/
 696 GtkWidget*
 697 gtk_message_dialog_new_with_markup (GtkWindow     *parent,
 698                                     GtkDialogFlags flags,
 699                                     GtkMessageType type,
 700                                     GtkButtonsType buttons,
 701                                     const gchar   *message_format,
 702                                     ...)
 703 {
 704   GtkWidget *widget;
 705   va_list args;
 706   gchar *msg = NULL;
 707
 708   g_return_val_if_fail (parent == NULL || GTK_IS_WINDOW (parent), NULL);
 709
 710   widget = gtk_message_dialog_new (parent, flags, type, buttons, NULL);
 711
 712   if (message_format)
 713     {
 714       va_start (args, message_format);
 715       msg = g_markup_vprintf_escaped (message_format, args);
 716       va_end (args);
 717
 718       gtk_message_dialog_set_markup (GTK_MESSAGE_DIALOG (widget), msg);
 719
 720       g_free (msg);
 721     }
 722
 723   return widget;
 724 }
 725
 726 /**
 727  * gtk_message_dialog_set_image:
 728  * @dialog: a #GtkMessageDialog
 729  * @image: the image
 730  *
 731  * Sets the dialog's image to @image.
 732  *
 733  * Since: 2.10
 734  **/
 735 void
 736 gtk_message_dialog_set_image (GtkMessageDialog *dialog,
 737                               GtkWidget        *image)
 738 {
 739   GtkMessageDialogPrivate *priv;
 740   GtkWidget *parent;
 741
 742   g_return_if_fail (GTK_IS_MESSAGE_DIALOG (dialog));
 743   g_return_if_fail (image == NULL || GTK_IS_WIDGET (image));
 744
 745   priv = dialog->priv;
 746
 747   if (image == NULL)
 748     {
 749       image = gtk_image_new_from_stock (NULL, GTK_ICON_SIZE_DIALOG);
 750       gtk_widget_set_halign (image, GTK_ALIGN_CENTER);
 751       gtk_widget_set_valign (image, GTK_ALIGN_START);
 752     }
 753
 754   priv->message_type = GTK_MESSAGE_OTHER;
 755
 756   parent = gtk_widget_get_parent (priv->image);
 757   gtk_container_add (GTK_CONTAINER (parent), image);
 758   gtk_container_remove (GTK_CONTAINER (parent), priv->image);
 759   gtk_box_reorder_child (GTK_BOX (parent), image, 0);
 760
 761   priv->image = image;
 762
 763   g_object_notify (G_OBJECT (dialog), "image");
 764 }
 765
 766 /**
 767  * gtk_message_dialog_get_image:
 768  * @dialog: a #GtkMessageDialog
 769  *
 770  * Gets the dialog's image.
 771  *
 772  * Return value: (transfer none): the dialog's image
 773  *
 774  * Since: 2.14
 775  **/
 776 GtkWidget *
 777 gtk_message_dialog_get_image (GtkMessageDialog *dialog)
 778 {
 779   g_return_val_if_fail (GTK_IS_MESSAGE_DIALOG (dialog), NULL);
 780
 781   return dialog->priv->image;
 782 }
 783
 784 /**
 785  * gtk_message_dialog_set_markup:
 786  * @message_dialog: a #GtkMessageDialog
 787  * @str: markup string (see <link linkend="PangoMarkupFormat">Pango markup format</link>)
 788  *
 789  * Sets the text of the message dialog to be @str, which is marked
 790  * up with the <link linkend="PangoMarkupFormat">Pango text markup
 791  * language</link>.
 792  *
 793  * Since: 2.4
 794  **/
 795 void
 796 gtk_message_dialog_set_markup (GtkMessageDialog *message_dialog,
 797                                const gchar      *str)
 798 {
 799   GtkMessageDialogPrivate *priv;
 800
 801   g_return_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog));
 802
 803   priv = message_dialog->priv;
 804
 805   priv->has_primary_markup = TRUE;
 806   gtk_label_set_markup (GTK_LABEL (priv->label), str);
 807 }
 808
 809 /**
 810  * gtk_message_dialog_format_secondary_text:
 811  * @message_dialog: a #GtkMessageDialog
 812  * @message_format: (allow-none): printf()-style format string, or %NULL
 813  * @...: arguments for @message_format
 814  *
 815  * Sets the secondary text of the message dialog to be @message_format
 816  * (with printf()-style).
 817  *
 818  * Since: 2.6
 819  */
 820 void
 821 gtk_message_dialog_format_secondary_text (GtkMessageDialog *message_dialog,
 822                                           const gchar      *message_format,
 823                                           ...)
 824 {
 825   va_list args;
 826   gchar *msg = NULL;
 827   GtkMessageDialogPrivate *priv;
 828
 829   g_return_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog));
 830
 831   priv = message_dialog->priv;
 832
 833   if (message_format)
 834     {
 835       priv->has_secondary_text = TRUE;
 836
 837       va_start (args, message_format);
 838       msg = g_strdup_vprintf (message_format, args);
 839       va_end (args);
 840
 841       gtk_widget_show (priv->secondary_label);
 842       gtk_label_set_text (GTK_LABEL (priv->secondary_label), msg);
 843
 844       g_free (msg);
 845     }
 846   else
 847     {
 848       priv->has_secondary_text = FALSE;
 849       gtk_widget_hide (priv->secondary_label);
 850     }
 851
 852   setup_primary_label_font (message_dialog);
 853 }
 854
 855 /**
 856  * gtk_message_dialog_format_secondary_markup:
 857  * @message_dialog: a #GtkMessageDialog
 858  * @message_format: printf()-style markup string (see
 859      <link linkend="PangoMarkupFormat">Pango markup format</link>), or %NULL
 860  * @...: arguments for @message_format
 861  *
 862  * Sets the secondary text of the message dialog to be @message_format (with
 863  * printf()-style), which is marked up with the
 864  * <link linkend="PangoMarkupFormat">Pango text markup language</link>.
 865  *
 866  * Due to an oversight, this function does not escape special XML characters
 867  * like gtk_message_dialog_new_with_markup() does. Thus, if the arguments
 868  * may contain special XML characters, you should use g_markup_printf_escaped()
 869  * to escape it.
 870
 871  * <informalexample><programlisting>
 872  * gchar *msg;
 873  *
 874  * msg = g_markup_printf_escaped (message_format, ...);
 875  * gtk_message_dialog_format_secondary_markup (message_dialog, "&percnt;s", msg);
 876  * g_free (msg);
 877  * </programlisting></informalexample>
 878  *
 879  * Since: 2.6
 880  */
 881 void
 882 gtk_message_dialog_format_secondary_markup (GtkMessageDialog *message_dialog,
 883                                             const gchar      *message_format,
 884                                             ...)
 885 {
 886   va_list args;
 887   gchar *msg = NULL;
 888   GtkMessageDialogPrivate *priv;
 889
 890   g_return_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog));
 891
 892   priv = message_dialog->priv;
 893
 894   if (message_format)
 895     {
 896       priv->has_secondary_text = TRUE;
 897
 898       va_start (args, message_format);
 899       msg = g_strdup_vprintf (message_format, args);
 900       va_end (args);
 901
 902       gtk_widget_show (priv->secondary_label);
 903       gtk_label_set_markup (GTK_LABEL (priv->secondary_label), msg);
 904
 905       g_free (msg);
 906     }
 907   else
 908     {
 909       priv->has_secondary_text = FALSE;
 910       gtk_widget_hide (priv->secondary_label);
 911     }
 912
 913   setup_primary_label_font (message_dialog);
 914 }
 915
 916 /**
 917  * gtk_message_dialog_get_message_area:
 918  * @message_dialog: a #GtkMessageDialog
 919  *
 920  * Returns the message area of the dialog. This is the box where the
 921  * dialog's primary and secondary labels are packed. You can add your
 922  * own extra content to that box and it will appear below those labels,
 923  * on the right side of the dialog's image (or on the left for right-to-left
 924  * languages).  See gtk_dialog_get_content_area() for the corresponding
 925  * function in the parent #GtkDialog.
 926  *
 927  * Return value: (transfer none): A #GtkVBox corresponding to the
 928  *     "message area" in the @message_dialog.
 929  *
 930  * Since: 2.22
 931  **/
 932 GtkWidget *
 933 gtk_message_dialog_get_message_area (GtkMessageDialog *message_dialog)
 934 {
 935   g_return_val_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog), NULL);
 936
 937   return message_dialog->priv->message_area;
 938 }
 939
 940 static void
 941 gtk_message_dialog_add_buttons (GtkMessageDialog* message_dialog,
 942                                 GtkButtonsType buttons)
 943 {
 944   GtkDialog* dialog = GTK_DIALOG (message_dialog);
 945
 946   switch (buttons)
 947     {
 948     case GTK_BUTTONS_NONE:
 949       /* nothing */
 950       break;
 951
 952     case GTK_BUTTONS_OK:
 953       gtk_dialog_add_button (dialog,
 954                              GTK_STOCK_OK,
 955                              GTK_RESPONSE_OK);
 956       break;
 957
 958     case GTK_BUTTONS_CLOSE:
 959       gtk_dialog_add_button (dialog,
 960                              GTK_STOCK_CLOSE,
 961                              GTK_RESPONSE_CLOSE);
 962       break;
 963
 964     case GTK_BUTTONS_CANCEL:
 965       gtk_dialog_add_button (dialog,
 966                              GTK_STOCK_CANCEL,
 967                              GTK_RESPONSE_CANCEL);
 968       break;
 969
 970     case GTK_BUTTONS_YES_NO:
 971       gtk_dialog_add_button (dialog,
 972                              GTK_STOCK_NO,
 973                              GTK_RESPONSE_NO);
 974       gtk_dialog_add_button (dialog,
 975                              GTK_STOCK_YES,
 976                              GTK_RESPONSE_YES);
 977       gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
 978                                                GTK_RESPONSE_YES,
 979                                                GTK_RESPONSE_NO,
 980                                                -1);
 981       break;
 982
 983     case GTK_BUTTONS_OK_CANCEL:
 984       gtk_dialog_add_button (dialog,
 985                              GTK_STOCK_CANCEL,
 986                              GTK_RESPONSE_CANCEL);
 987       gtk_dialog_add_button (dialog,
 988                              GTK_STOCK_OK,
 989                              GTK_RESPONSE_OK);
 990       gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
 991                                                GTK_RESPONSE_OK,
 992                                                GTK_RESPONSE_CANCEL,
 993                                                -1);
 994       break;
 995
 996     default:
 997       g_warning ("Unknown GtkButtonsType");
 998       break;
 999     }
1000
1001   g_object_notify (G_OBJECT (message_dialog), "buttons");
1002 }
1003
1004 static void
1005 gtk_message_dialog_style_updated (GtkWidget *widget)
1006 {
1007   GtkMessageDialog *dialog = GTK_MESSAGE_DIALOG (widget);
1008   GtkWidget *parent;
1009   gint border_width;
1010
1011   parent = gtk_widget_get_parent (gtk_message_dialog_get_image (dialog));
1012
1013   if (parent)
1014     {
1015       gtk_widget_style_get (widget, "message-border",
1016                             &border_width, NULL);
1017
1018       gtk_container_set_border_width (GTK_CONTAINER (parent),
1019                                       MAX (0, border_width - 7));
1020     }
1021
1022   GTK_WIDGET_CLASS (gtk_message_dialog_parent_class)->style_updated (widget);
1023 }