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

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 2000 Red Hat, Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2003.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #include "gtkmessagedialog.h"
  28 #include "gtklabel.h"
  29 #include "gtkhbox.h"
  30 #include "gtkimage.h"
  31 #include "gtkstock.h"
  32 #include "gtkiconfactory.h"
  33 #include "gtkintl.h"
  34 #include <string.h>
  35
  36 static void gtk_message_dialog_class_init (GtkMessageDialogClass *klass);
  37 static void gtk_message_dialog_init       (GtkMessageDialog      *dialog);
  38 static void gtk_message_dialog_style_set  (GtkWidget             *widget,
  39                                            GtkStyle              *prev_style);
  40
  41 static void gtk_message_dialog_set_property (GObject          *object,
  42                                              guint             prop_id,
  43                                              const GValue     *value,
  44                                              GParamSpec       *pspec);
  45 static void gtk_message_dialog_get_property (GObject          *object,
  46                                              guint             prop_id,
  47                                              GValue           *value,
  48                                              GParamSpec       *pspec);
  49 static void gtk_message_dialog_add_buttons  (GtkMessageDialog *message_dialog,
  50                                              GtkButtonsType    buttons);
  51
  52
  53 enum {
  54   PROP_0,
  55   PROP_MESSAGE_TYPE,
  56   PROP_BUTTONS
  57 };
  58
  59 static gpointer parent_class;
  60
  61 GType
  62 gtk_message_dialog_get_type (void)
  63 {
  64   static GType dialog_type = 0;
  65
  66   if (!dialog_type)
  67     {
  68       static const GTypeInfo dialog_info =
  69       {
  70         sizeof (GtkMessageDialogClass),
  71         NULL,           /* base_init */
  72         NULL,           /* base_finalize */
  73         (GClassInitFunc) gtk_message_dialog_class_init,
  74         NULL,           /* class_finalize */
  75         NULL,           /* class_data */
  76         sizeof (GtkMessageDialog),
  77         0,              /* n_preallocs */
  78         (GInstanceInitFunc) gtk_message_dialog_init,
  79       };
  80
  81       dialog_type = g_type_register_static (GTK_TYPE_DIALOG, "GtkMessageDialog",
  82                                             &dialog_info, 0);
  83     }
  84
  85   return dialog_type;
  86 }
  87
  88 static void
  89 gtk_message_dialog_class_init (GtkMessageDialogClass *class)
  90 {
  91   GtkWidgetClass *widget_class;
  92   GObjectClass *gobject_class;
  93
  94   widget_class = GTK_WIDGET_CLASS (class);
  95   gobject_class = G_OBJECT_CLASS (class);
  96
  97   parent_class = g_type_class_peek_parent (class);
  98
  99   widget_class->style_set = gtk_message_dialog_style_set;
 100
 101   gobject_class->set_property = gtk_message_dialog_set_property;
 102   gobject_class->get_property = gtk_message_dialog_get_property;
 103
 104   gtk_widget_class_install_style_property (widget_class,
 105                                            g_param_spec_int ("message_border",
 106                                                              _("Image/label border"),
 107                                                              _("Width of border around the label and image in the message dialog"),
 108                                                              0,
 109                                                              G_MAXINT,
 110                                                              8,
 111                                                              G_PARAM_READABLE));
 112   g_object_class_install_property (gobject_class,
 113                                    PROP_MESSAGE_TYPE,
 114                                    g_param_spec_enum ("message_type",
 115                                                       _("Message Type"),
 116                                                       _("The type of message"),
 117                                                       GTK_TYPE_MESSAGE_TYPE,
 118                                                       GTK_MESSAGE_INFO,
 119                                                       G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));
 120   g_object_class_install_property (gobject_class,
 121                                    PROP_BUTTONS,
 122                                    g_param_spec_enum ("buttons",
 123                                                       _("Message Buttons"),
 124                                                       _("The buttons shown in the message dialog"),
 125                                                       GTK_TYPE_BUTTONS_TYPE,
 126                                                       GTK_BUTTONS_NONE,
 127                                                       G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
 128
 129 }
 130
 131 static void
 132 gtk_message_dialog_init (GtkMessageDialog *dialog)
 133 {
 134   GtkWidget *hbox;
 135
 136   dialog->label = gtk_label_new (NULL);
 137   dialog->image = gtk_image_new_from_stock (NULL, GTK_ICON_SIZE_DIALOG);
 138   gtk_misc_set_alignment (GTK_MISC (dialog->image), 0.5, 0.0);
 139
 140   gtk_label_set_line_wrap (GTK_LABEL (dialog->label), TRUE);
 141   gtk_label_set_selectable (GTK_LABEL (dialog->label), TRUE);
 142
 143   hbox = gtk_hbox_new (FALSE, 6);
 144
 145   gtk_box_pack_start (GTK_BOX (hbox), dialog->image,
 146                       FALSE, FALSE, 0);
 147
 148   gtk_box_pack_start (GTK_BOX (hbox), dialog->label,
 149                       TRUE, TRUE, 0);
 150
 151   gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox),
 152                       hbox,
 153                       FALSE, FALSE, 0);
 154
 155   gtk_widget_show_all (hbox);
 156 }
 157
 158 static GtkMessageType
 159 gtk_message_dialog_get_message_type (GtkMessageDialog *dialog)
 160 {
 161   const gchar* stock_id = NULL;
 162
 163   g_return_val_if_fail (GTK_IS_MESSAGE_DIALOG (dialog), GTK_MESSAGE_INFO);
 164   g_return_val_if_fail (GTK_IS_IMAGE(dialog->image), GTK_MESSAGE_INFO);
 165
 166   stock_id = GTK_IMAGE(dialog->image)->data.stock.stock_id;
 167
 168   /* Look at the stock id of the image to guess the
 169    * GtkMessageType value that was used to choose it
 170    * in setup_type()
 171    */
 172   if (strcmp (stock_id, GTK_STOCK_DIALOG_INFO) == 0)
 173     return GTK_MESSAGE_INFO;
 174   else if (strcmp (stock_id, GTK_STOCK_DIALOG_QUESTION) == 0)
 175     return GTK_MESSAGE_QUESTION;
 176   else if (strcmp (stock_id, GTK_STOCK_DIALOG_WARNING) == 0)
 177     return GTK_MESSAGE_WARNING;
 178   else if (strcmp (stock_id, GTK_STOCK_DIALOG_ERROR) == 0)
 179     return GTK_MESSAGE_ERROR;
 180   else
 181     {
 182       g_assert_not_reached ();
 183       return GTK_MESSAGE_INFO;
 184     }
 185 }
 186
 187 static void
 188 setup_type (GtkMessageDialog *dialog,
 189             GtkMessageType    type)
 190 {
 191   const gchar *stock_id = NULL;
 192   GtkStockItem item;
 193
 194   switch (type)
 195     {
 196     case GTK_MESSAGE_INFO:
 197       stock_id = GTK_STOCK_DIALOG_INFO;
 198       break;
 199
 200     case GTK_MESSAGE_QUESTION:
 201       stock_id = GTK_STOCK_DIALOG_QUESTION;
 202       break;
 203
 204     case GTK_MESSAGE_WARNING:
 205       stock_id = GTK_STOCK_DIALOG_WARNING;
 206       break;
 207
 208     case GTK_MESSAGE_ERROR:
 209       stock_id = GTK_STOCK_DIALOG_ERROR;
 210       break;
 211
 212     default:
 213       g_warning ("Unknown GtkMessageType %d", type);
 214       break;
 215     }
 216
 217   if (stock_id == NULL)
 218     stock_id = GTK_STOCK_DIALOG_INFO;
 219
 220   if (gtk_stock_lookup (stock_id, &item))
 221     {
 222       gtk_image_set_from_stock (GTK_IMAGE (dialog->image), stock_id,
 223                                 GTK_ICON_SIZE_DIALOG);
 224
 225       gtk_window_set_title (GTK_WINDOW (dialog), item.label);
 226     }
 227   else
 228     g_warning ("Stock dialog ID doesn't exist?");
 229 }
 230
 231 static void
 232 gtk_message_dialog_set_property (GObject      *object,
 233                                  guint         prop_id,
 234                                  const GValue *value,
 235                                  GParamSpec   *pspec)
 236 {
 237   GtkMessageDialog *dialog;
 238
 239   dialog = GTK_MESSAGE_DIALOG (object);
 240
 241   switch (prop_id)
 242     {
 243     case PROP_MESSAGE_TYPE:
 244       setup_type (dialog, g_value_get_enum (value));
 245       break;
 246     case PROP_BUTTONS:
 247       gtk_message_dialog_add_buttons (dialog, g_value_get_enum (value));
 248       break;
 249     default:
 250       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 251       break;
 252     }
 253 }
 254
 255 static void
 256 gtk_message_dialog_get_property (GObject     *object,
 257                                  guint        prop_id,
 258                                  GValue      *value,
 259                                  GParamSpec  *pspec)
 260 {
 261   GtkMessageDialog *dialog;
 262
 263   dialog = GTK_MESSAGE_DIALOG (object);
 264
 265   switch (prop_id)
 266     {
 267     case PROP_MESSAGE_TYPE:
 268       g_value_set_enum (value, gtk_message_dialog_get_message_type (dialog));
 269       break;
 270     default:
 271       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 272       break;
 273     }
 274 }
 275
 276
 277 /**
 278  * gtk_message_dialog_new:
 279  * @parent: transient parent, or NULL for none
 280  * @flags: flags
 281  * @type: type of message
 282  * @buttons: set of buttons to use
 283  * @message_format: printf()-style format string, or NULL
 284  * @Varargs: arguments for @message_format
 285  *
 286  * Creates a new message dialog, which is a simple dialog with an icon
 287  * indicating the dialog type (error, warning, etc.) and some text the
 288  * user may want to see. When the user clicks a button a "response"
 289  * signal is emitted with response IDs from #GtkResponseType. See
 290  * #GtkDialog for more details.
 291  *
 292  * Return value: a new #GtkMessageDialog
 293  **/
 294 GtkWidget*
 295 gtk_message_dialog_new (GtkWindow     *parent,
 296                         GtkDialogFlags flags,
 297                         GtkMessageType type,
 298                         GtkButtonsType buttons,
 299                         const gchar   *message_format,
 300                         ...)
 301 {
 302   GtkWidget *widget;
 303   GtkDialog *dialog;
 304   gchar* msg = 0;
 305   va_list args;
 306
 307   g_return_val_if_fail (parent == NULL || GTK_IS_WINDOW (parent), NULL);
 308   g_return_val_if_fail (message_format != NULL, NULL);
 309
 310   widget = g_object_new (GTK_TYPE_MESSAGE_DIALOG,
 311                          "message_type", type,
 312                          "buttons", buttons,
 313                          NULL);
 314   dialog = GTK_DIALOG (widget);
 315
 316   if (flags & GTK_DIALOG_NO_SEPARATOR)
 317     {
 318       g_warning ("The GTK_DIALOG_NO_SEPARATOR flag cannot be used for GtkMessageDialog");
 319       flags &= ~GTK_DIALOG_NO_SEPARATOR;
 320     }
 321
 322   if (message_format)
 323     {
 324       va_start (args, message_format);
 325       msg = g_strdup_vprintf (message_format, args);
 326       va_end (args);
 327
 328
 329       gtk_label_set_text (GTK_LABEL (GTK_MESSAGE_DIALOG (widget)->label),
 330                           msg);
 331
 332       g_free (msg);
 333     }
 334
 335   if (parent != NULL)
 336     gtk_window_set_transient_for (GTK_WINDOW (widget),
 337                                   GTK_WINDOW (parent));
 338
 339   if (flags & GTK_DIALOG_MODAL)
 340     gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
 341
 342   if (flags & GTK_DIALOG_DESTROY_WITH_PARENT)
 343     gtk_window_set_destroy_with_parent (GTK_WINDOW (dialog), TRUE);
 344
 345   if (flags & GTK_DIALOG_NO_SEPARATOR)
 346     gtk_dialog_set_has_separator (dialog, FALSE);
 347
 348   return widget;
 349 }
 350
 351 /**
 352  * gtk_message_dialog_new_with_markup:
 353  * @parent: transient parent, or %NULL for none
 354  * @flags: flags
 355  * @type: type of message
 356  * @buttons: set of buttons to use
 357  * @message_format: printf()-style format string, or %NULL
 358  * @Varargs: arguments for @message_format
 359  *
 360  * Creates a new message dialog, which is a simple dialog with an icon
 361  * indicating the dialog type (error, warning, etc.) and some text which
 362  * is marked up with the <link linkend="PangoMarkupFormat">Pango text markup language</link>.
 363  * When the user clicks a button a "response" signal is emitted with
 364  * response IDs from #GtkResponseType. See #GtkDialog for more details.
 365  *
 366  * Please note that if you have strings in the printf() arguments
 367  * passed to this function, you might need to protect against
 368  * them being interpreted as markup. You can do this using
 369  * g_markup_escape_text() as in the following example:
 370  * <informalexample><programlisting>
 371  *   const gchar *error_text =
 372  *     "&lt;span weight=\"bold\" size=\"larger\"&gt;"
 373  *     "Could not open document '%s'."
 374  *     "&lt;/span&gt;\n\n"
 375  *     "You do not have appropriate permission to access this file.";
 376  *   gchar *tmp;
 377  *   GtkWidget *dialog;
 378  *
 379  *   tmp = g_markup_escape_text (filename, -1);
 380  *   dialog = gtk_message_dialog_new_with_markup (main_application_window,
 381  *                                                GTK_DIALOG_DESTROY_WITH_PARENT,
 382  *                                                GTK_MESSAGE_ERROR,
 383  *                                                GTK_BUTTONS_CLOSE,
 384  *                                                error_text, tmp);
 385  *   g_free (tmp);
 386  * </programlisting></informalexample>
 387  *
 388  * Return value: a new #GtkMessageDialog
 389  *
 390  * Since: 2.4
 391  **/
 392 GtkWidget*
 393 gtk_message_dialog_new_with_markup (GtkWindow     *parent,
 394                                     GtkDialogFlags flags,
 395                                     GtkMessageType type,
 396                                     GtkButtonsType buttons,
 397                                     const gchar   *message_format,
 398                                     ...)
 399 {
 400   GtkWidget *widget;
 401   gchar* msg = 0;
 402   va_list args;
 403
 404   g_return_val_if_fail (parent == NULL || GTK_IS_WINDOW (parent), NULL);
 405   g_return_val_if_fail (message_format != NULL, NULL);
 406
 407   widget = gtk_message_dialog_new (parent, flags, type, buttons, "");
 408
 409   if (message_format)
 410     {
 411       va_start (args, message_format);
 412       msg = g_strdup_vprintf(message_format, args);
 413       va_end (args);
 414
 415       gtk_label_set_markup (GTK_LABEL (GTK_MESSAGE_DIALOG (widget)->label),
 416                             msg);
 417
 418       g_free (msg);
 419     }
 420
 421   return widget;
 422 }
 423
 424 static void
 425 gtk_message_dialog_add_buttons (GtkMessageDialog* message_dialog,
 426                                 GtkButtonsType buttons)
 427 {
 428   GtkDialog* dialog = GTK_DIALOG (message_dialog);
 429
 430   switch (buttons)
 431     {
 432     case GTK_BUTTONS_NONE:
 433       /* nothing */
 434       break;
 435
 436     case GTK_BUTTONS_OK:
 437       gtk_dialog_add_button (dialog,
 438                              GTK_STOCK_OK,
 439                              GTK_RESPONSE_OK);
 440       break;
 441
 442     case GTK_BUTTONS_CLOSE:
 443       gtk_dialog_add_button (dialog,
 444                              GTK_STOCK_CLOSE,
 445                              GTK_RESPONSE_CLOSE);
 446       break;
 447
 448     case GTK_BUTTONS_CANCEL:
 449       gtk_dialog_add_button (dialog,
 450                              GTK_STOCK_CANCEL,
 451                              GTK_RESPONSE_CANCEL);
 452       break;
 453
 454     case GTK_BUTTONS_YES_NO:
 455       gtk_dialog_add_button (dialog,
 456                              GTK_STOCK_NO,
 457                              GTK_RESPONSE_NO);
 458       gtk_dialog_add_button (dialog,
 459                              GTK_STOCK_YES,
 460                              GTK_RESPONSE_YES);
 461       break;
 462
 463     case GTK_BUTTONS_OK_CANCEL:
 464       gtk_dialog_add_button (dialog,
 465                              GTK_STOCK_CANCEL,
 466                              GTK_RESPONSE_CANCEL);
 467       gtk_dialog_add_button (dialog,
 468                              GTK_STOCK_OK,
 469                              GTK_RESPONSE_OK);
 470       break;
 471
 472     default:
 473       g_warning ("Unknown GtkButtonsType");
 474       break;
 475     }
 476
 477   g_object_notify (G_OBJECT (message_dialog), "buttons");
 478 }
 479
 480 static void
 481 gtk_message_dialog_style_set (GtkWidget *widget,
 482                               GtkStyle  *prev_style)
 483 {
 484   GtkWidget *parent;
 485   gint border_width = 0;
 486
 487   parent = GTK_WIDGET (GTK_MESSAGE_DIALOG (widget)->image->parent);
 488
 489   if (parent)
 490     {
 491       gtk_widget_style_get (widget, "message_border",
 492                             &border_width, NULL);
 493
 494       gtk_container_set_border_width (GTK_CONTAINER (parent),
 495                                       border_width);
 496     }
 497
 498   if (GTK_WIDGET_CLASS (parent_class)->style_set)
 499     (GTK_WIDGET_CLASS (parent_class)->style_set) (widget, prev_style);
 500 }