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

   1 /* gtkcellrenderertext.c
   2  * Copyright (C) 2000  Red Hat, Inc.,  Jonathan Blandford <jrb@redhat.com>
   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 #include <config.h>
  21 #include <stdlib.h>
  22 #include "gtkcellrenderertext.h"
  23 #include "gtkeditable.h"
  24 #include "gtkentry.h"
  25 #include "gtkmarshalers.h"
  26 #include "gtkintl.h"
  27 #include "gtkprivate.h"
  28 #include "gtktreeprivate.h"
  29 #include "gtkalias.h"
  30
  31 static void gtk_cell_renderer_text_finalize   (GObject                  *object);
  32
  33 static void gtk_cell_renderer_text_get_property  (GObject                  *object,
  34                                                   guint                     param_id,
  35                                                   GValue                   *value,
  36                                                   GParamSpec               *pspec);
  37 static void gtk_cell_renderer_text_set_property  (GObject                  *object,
  38                                                   guint                     param_id,
  39                                                   const GValue             *value,
  40                                                   GParamSpec               *pspec);
  41 static void gtk_cell_renderer_text_get_size   (GtkCellRenderer          *cell,
  42                                                GtkWidget                *widget,
  43                                                GdkRectangle             *cell_area,
  44                                                gint                     *x_offset,
  45                                                gint                     *y_offset,
  46                                                gint                     *width,
  47                                                gint                     *height);
  48 static void gtk_cell_renderer_text_render     (GtkCellRenderer          *cell,
  49                                                GdkWindow                *window,
  50                                                GtkWidget                *widget,
  51                                                GdkRectangle             *background_area,
  52                                                GdkRectangle             *cell_area,
  53                                                GdkRectangle             *expose_area,
  54                                                GtkCellRendererState      flags);
  55
  56 static GtkCellEditable *gtk_cell_renderer_text_start_editing (GtkCellRenderer      *cell,
  57                                                               GdkEvent             *event,
  58                                                               GtkWidget            *widget,
  59                                                               const gchar          *path,
  60                                                               GdkRectangle         *background_area,
  61                                                               GdkRectangle         *cell_area,
  62                                                               GtkCellRendererState  flags);
  63
  64 enum {
  65   EDITED,
  66   LAST_SIGNAL
  67 };
  68
  69 enum {
  70   PROP_0,
  71
  72   PROP_TEXT,
  73   PROP_MARKUP,
  74   PROP_ATTRIBUTES,
  75   PROP_SINGLE_PARAGRAPH_MODE,
  76   PROP_WIDTH_CHARS,
  77   PROP_WRAP_WIDTH,
  78   PROP_ALIGN,
  79
  80   /* Style args */
  81   PROP_BACKGROUND,
  82   PROP_FOREGROUND,
  83   PROP_BACKGROUND_GDK,
  84   PROP_FOREGROUND_GDK,
  85   PROP_FONT,
  86   PROP_FONT_DESC,
  87   PROP_FAMILY,
  88   PROP_STYLE,
  89   PROP_VARIANT,
  90   PROP_WEIGHT,
  91   PROP_STRETCH,
  92   PROP_SIZE,
  93   PROP_SIZE_POINTS,
  94   PROP_SCALE,
  95   PROP_EDITABLE,
  96   PROP_STRIKETHROUGH,
  97   PROP_UNDERLINE,
  98   PROP_RISE,
  99   PROP_LANGUAGE,
 100   PROP_ELLIPSIZE,
 101   PROP_WRAP_MODE,
 102
 103   /* Whether-a-style-arg-is-set args */
 104   PROP_BACKGROUND_SET,
 105   PROP_FOREGROUND_SET,
 106   PROP_FAMILY_SET,
 107   PROP_STYLE_SET,
 108   PROP_VARIANT_SET,
 109   PROP_WEIGHT_SET,
 110   PROP_STRETCH_SET,
 111   PROP_SIZE_SET,
 112   PROP_SCALE_SET,
 113   PROP_EDITABLE_SET,
 114   PROP_STRIKETHROUGH_SET,
 115   PROP_UNDERLINE_SET,
 116   PROP_RISE_SET,
 117   PROP_LANGUAGE_SET,
 118   PROP_ELLIPSIZE_SET,
 119   PROP_ALIGN_SET
 120 };
 121
 122 static guint text_cell_renderer_signals [LAST_SIGNAL];
 123
 124 #define GTK_CELL_RENDERER_TEXT_PATH "gtk-cell-renderer-text-path"
 125
 126 #define GTK_CELL_RENDERER_TEXT_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_CELL_RENDERER_TEXT, GtkCellRendererTextPrivate))
 127
 128 typedef struct _GtkCellRendererTextPrivate GtkCellRendererTextPrivate;
 129 struct _GtkCellRendererTextPrivate
 130 {
 131   guint single_paragraph : 1;
 132   guint language_set : 1;
 133   guint markup_set : 1;
 134   guint ellipsize_set : 1;
 135   guint align_set : 1;
 136
 137   gulong focus_out_id;
 138   PangoLanguage *language;
 139   PangoEllipsizeMode ellipsize;
 140   PangoWrapMode wrap_mode;
 141   PangoAlignment align;
 142
 143   gulong populate_popup_id;
 144   gulong entry_menu_popdown_timeout;
 145   gboolean in_entry_menu;
 146
 147   gint width_chars;
 148   gint wrap_width;
 149
 150   GtkWidget *entry;
 151 };
 152
 153 G_DEFINE_TYPE (GtkCellRendererText, gtk_cell_renderer_text, GTK_TYPE_CELL_RENDERER)
 154
 155 static void
 156 gtk_cell_renderer_text_init (GtkCellRendererText *celltext)
 157 {
 158   GtkCellRendererTextPrivate *priv;
 159
 160   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (celltext);
 161
 162   GTK_CELL_RENDERER (celltext)->xalign = 0.0;
 163   GTK_CELL_RENDERER (celltext)->yalign = 0.5;
 164   GTK_CELL_RENDERER (celltext)->xpad = 2;
 165   GTK_CELL_RENDERER (celltext)->ypad = 2;
 166   celltext->fixed_height_rows = -1;
 167   celltext->font = pango_font_description_new ();
 168
 169   priv->width_chars = -1;
 170   priv->wrap_width = -1;
 171   priv->align = PANGO_ALIGN_LEFT;
 172   priv->align_set = FALSE;
 173 }
 174
 175 static void
 176 gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class)
 177 {
 178   GObjectClass *object_class = G_OBJECT_CLASS (class);
 179   GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (class);
 180
 181   object_class->finalize = gtk_cell_renderer_text_finalize;
 182
 183   object_class->get_property = gtk_cell_renderer_text_get_property;
 184   object_class->set_property = gtk_cell_renderer_text_set_property;
 185
 186   cell_class->get_size = gtk_cell_renderer_text_get_size;
 187   cell_class->render = gtk_cell_renderer_text_render;
 188   cell_class->start_editing = gtk_cell_renderer_text_start_editing;
 189
 190   g_object_class_install_property (object_class,
 191                                    PROP_TEXT,
 192                                    g_param_spec_string ("text",
 193                                                         P_("Text"),
 194                                                         P_("Text to render"),
 195                                                         NULL,
 196                                                         GTK_PARAM_READWRITE));
 197
 198   g_object_class_install_property (object_class,
 199                                    PROP_MARKUP,
 200                                    g_param_spec_string ("markup",
 201                                                         P_("Markup"),
 202                                                         P_("Marked up text to render"),
 203                                                         NULL,
 204                                                         GTK_PARAM_WRITABLE));
 205
 206   g_object_class_install_property (object_class,
 207                                    PROP_ATTRIBUTES,
 208                                    g_param_spec_boxed ("attributes",
 209                                                        P_("Attributes"),
 210                                                        P_("A list of style attributes to apply to the text of the renderer"),
 211                                                        PANGO_TYPE_ATTR_LIST,
 212                                                        GTK_PARAM_READWRITE));
 213
 214   g_object_class_install_property (object_class,
 215                                    PROP_SINGLE_PARAGRAPH_MODE,
 216                                    g_param_spec_boolean ("single-paragraph-mode",
 217                                                          P_("Single Paragraph Mode"),
 218                                                          P_("Whether or not to keep all text in a single paragraph"),
 219                                                          FALSE,
 220                                                          GTK_PARAM_READWRITE));
 221
 222
 223   g_object_class_install_property (object_class,
 224                                    PROP_BACKGROUND,
 225                                    g_param_spec_string ("background",
 226                                                         P_("Background color name"),
 227                                                         P_("Background color as a string"),
 228                                                         NULL,
 229                                                         GTK_PARAM_WRITABLE));
 230
 231   g_object_class_install_property (object_class,
 232                                    PROP_BACKGROUND_GDK,
 233                                    g_param_spec_boxed ("background-gdk",
 234                                                        P_("Background color"),
 235                                                        P_("Background color as a GdkColor"),
 236                                                        GDK_TYPE_COLOR,
 237                                                        GTK_PARAM_READWRITE));
 238
 239   g_object_class_install_property (object_class,
 240                                    PROP_FOREGROUND,
 241                                    g_param_spec_string ("foreground",
 242                                                         P_("Foreground color name"),
 243                                                         P_("Foreground color as a string"),
 244                                                         NULL,
 245                                                         GTK_PARAM_WRITABLE));
 246
 247   g_object_class_install_property (object_class,
 248                                    PROP_FOREGROUND_GDK,
 249                                    g_param_spec_boxed ("foreground-gdk",
 250                                                        P_("Foreground color"),
 251                                                        P_("Foreground color as a GdkColor"),
 252                                                        GDK_TYPE_COLOR,
 253                                                        GTK_PARAM_READWRITE));
 254
 255
 256   g_object_class_install_property (object_class,
 257                                    PROP_EDITABLE,
 258                                    g_param_spec_boolean ("editable",
 259                                                          P_("Editable"),
 260                                                          P_("Whether the text can be modified by the user"),
 261                                                          FALSE,
 262                                                          GTK_PARAM_READWRITE));
 263
 264   g_object_class_install_property (object_class,
 265                                    PROP_FONT,
 266                                    g_param_spec_string ("font",
 267                                                         P_("Font"),
 268                                                         P_("Font description as a string, e.g. \"Sans Italic 12\""),
 269                                                         NULL,
 270                                                         GTK_PARAM_READWRITE));
 271
 272   g_object_class_install_property (object_class,
 273                                    PROP_FONT_DESC,
 274                                    g_param_spec_boxed ("font-desc",
 275                                                        P_("Font"),
 276                                                        P_("Font description as a PangoFontDescription struct"),
 277                                                        PANGO_TYPE_FONT_DESCRIPTION,
 278                                                        GTK_PARAM_READWRITE));
 279
 280
 281   g_object_class_install_property (object_class,
 282                                    PROP_FAMILY,
 283                                    g_param_spec_string ("family",
 284                                                         P_("Font family"),
 285                                                         P_("Name of the font family, e.g. Sans, Helvetica, Times, Monospace"),
 286                                                         NULL,
 287                                                         GTK_PARAM_READWRITE));
 288
 289   g_object_class_install_property (object_class,
 290                                    PROP_STYLE,
 291                                    g_param_spec_enum ("style",
 292                                                       P_("Font style"),
 293                                                       P_("Font style"),
 294                                                       PANGO_TYPE_STYLE,
 295                                                       PANGO_STYLE_NORMAL,
 296                                                       GTK_PARAM_READWRITE));
 297
 298   g_object_class_install_property (object_class,
 299                                    PROP_VARIANT,
 300                                    g_param_spec_enum ("variant",
 301                                                      P_("Font variant"),
 302                                                      P_("Font variant"),
 303                                                       PANGO_TYPE_VARIANT,
 304                                                       PANGO_VARIANT_NORMAL,
 305                                                       GTK_PARAM_READWRITE));
 306
 307   g_object_class_install_property (object_class,
 308                                    PROP_WEIGHT,
 309                                    g_param_spec_int ("weight",
 310                                                      P_("Font weight"),
 311                                                      P_("Font weight"),
 312                                                      0,
 313                                                      G_MAXINT,
 314                                                      PANGO_WEIGHT_NORMAL,
 315                                                      GTK_PARAM_READWRITE));
 316
 317    g_object_class_install_property (object_class,
 318                                    PROP_STRETCH,
 319                                    g_param_spec_enum ("stretch",
 320                                                       P_("Font stretch"),
 321                                                       P_("Font stretch"),
 322                                                       PANGO_TYPE_STRETCH,
 323                                                       PANGO_STRETCH_NORMAL,
 324                                                       GTK_PARAM_READWRITE));
 325
 326   g_object_class_install_property (object_class,
 327                                    PROP_SIZE,
 328                                    g_param_spec_int ("size",
 329                                                      P_("Font size"),
 330                                                      P_("Font size"),
 331                                                      0,
 332                                                      G_MAXINT,
 333                                                      0,
 334                                                      GTK_PARAM_READWRITE));
 335
 336   g_object_class_install_property (object_class,
 337                                    PROP_SIZE_POINTS,
 338                                    g_param_spec_double ("size-points",
 339                                                         P_("Font points"),
 340                                                         P_("Font size in points"),
 341                                                         0.0,
 342                                                         G_MAXDOUBLE,
 343                                                         0.0,
 344                                                         GTK_PARAM_READWRITE));
 345
 346   g_object_class_install_property (object_class,
 347                                    PROP_SCALE,
 348                                    g_param_spec_double ("scale",
 349                                                         P_("Font scale"),
 350                                                         P_("Font scaling factor"),
 351                                                         0.0,
 352                                                         G_MAXDOUBLE,
 353                                                         1.0,
 354                                                         GTK_PARAM_READWRITE));
 355
 356   g_object_class_install_property (object_class,
 357                                    PROP_RISE,
 358                                    g_param_spec_int ("rise",
 359                                                      P_("Rise"),
 360                                                      P_("Offset of text above the baseline "
 361                                                         "(below the baseline if rise is negative)"),
 362                                                      -G_MAXINT,
 363                                                      G_MAXINT,
 364                                                      0,
 365                                                      GTK_PARAM_READWRITE));
 366
 367
 368   g_object_class_install_property (object_class,
 369                                    PROP_STRIKETHROUGH,
 370                                    g_param_spec_boolean ("strikethrough",
 371                                                          P_("Strikethrough"),
 372                                                          P_("Whether to strike through the text"),
 373                                                          FALSE,
 374                                                          GTK_PARAM_READWRITE));
 375
 376   g_object_class_install_property (object_class,
 377                                    PROP_UNDERLINE,
 378                                    g_param_spec_enum ("underline",
 379                                                       P_("Underline"),
 380                                                       P_("Style of underline for this text"),
 381                                                       PANGO_TYPE_UNDERLINE,
 382                                                       PANGO_UNDERLINE_NONE,
 383                                                       GTK_PARAM_READWRITE));
 384
 385   g_object_class_install_property (object_class,
 386                                    PROP_LANGUAGE,
 387                                    g_param_spec_string ("language",
 388                                                         P_("Language"),
 389                                                         P_("The language this text is in, as an ISO code. "
 390                                                            "Pango can use this as a hint when rendering the text. "
 391                                                            "If you don't understand this parameter, you probably don't need it"),
 392                                                         NULL,
 393                                                         GTK_PARAM_READWRITE));
 394
 395
 396   /**
 397    * GtkCellRendererText:ellipsize:
 398    *
 399    * Specifies the preferred place to ellipsize the string, if the cell renderer
 400    * does not have enough room to display the entire string. Setting it to
 401    * %PANGO_ELLIPSIZE_NONE turns off ellipsizing. See the wrap-width property
 402    * for another way of making the text fit into a given width.
 403    *
 404    * Since: 2.6
 405    */
 406   g_object_class_install_property (object_class,
 407                                    PROP_ELLIPSIZE,
 408                                    g_param_spec_enum ("ellipsize",
 409                                                       P_("Ellipsize"),
 410                                                       P_("The preferred place to ellipsize the string, "
 411                                                          "if the cell renderer does not have enough room "
 412                                                          "to display the entire string"),
 413                                                       PANGO_TYPE_ELLIPSIZE_MODE,
 414                                                       PANGO_ELLIPSIZE_NONE,
 415                                                       GTK_PARAM_READWRITE));
 416
 417   /**
 418    * GtkCellRendererText:width-chars:
 419    *
 420    * The desired width of the cell, in characters. If this property is set to
 421    * -1, the width will be calculated automatically, otherwise the cell will
 422    * request either 3 characters or the property value, whichever is greater.
 423    *
 424    * Since: 2.6
 425    **/
 426   g_object_class_install_property (object_class,
 427                                    PROP_WIDTH_CHARS,
 428                                    g_param_spec_int ("width-chars",
 429                                                      P_("Width In Characters"),
 430                                                      P_("The desired width of the label, in characters"),
 431                                                      -1,
 432                                                      G_MAXINT,
 433                                                      -1,
 434                                                      GTK_PARAM_READWRITE));
 435
 436   /**
 437    * GtkCellRendererText:wrap-mode:
 438    *
 439    * Specifies how to break the string into multiple lines, if the cell
 440    * renderer does not have enough room to display the entire string.
 441    * This property has no effect unless the wrap-width property is set.
 442    *
 443    * Since: 2.8
 444    */
 445   g_object_class_install_property (object_class,
 446                                    PROP_WRAP_MODE,
 447                                    g_param_spec_enum ("wrap-mode",
 448                                                       P_("Wrap mode"),
 449                                                       P_("How to break the string into multiple lines, "
 450                                                          "if the cell renderer does not have enough room "
 451                                                          "to display the entire string"),
 452                                                       PANGO_TYPE_WRAP_MODE,
 453                                                       PANGO_WRAP_CHAR,
 454                                                       GTK_PARAM_READWRITE));
 455
 456   /**
 457    * GtkCellRendererText:wrap-width:
 458    *
 459    * Specifies the width at which the text is wrapped. The wrap-mode property can
 460    * be used to influence at what character positions the line breaks can be placed.
 461    * Setting wrap-width to -1 turns wrapping off.
 462    *
 463    * Since: 2.8
 464    */
 465   g_object_class_install_property (object_class,
 466                                    PROP_WRAP_WIDTH,
 467                                    g_param_spec_int ("wrap-width",
 468                                                      P_("Wrap width"),
 469                                                      P_("The width at which the text is wrapped"),
 470                                                      -1,
 471                                                      G_MAXINT,
 472                                                      -1,
 473                                                      GTK_PARAM_READWRITE));
 474
 475   /**
 476    * GtkCellRendererText:alignment:
 477    *
 478    * Specifies how to align the lines of text with respect to each other.
 479    *
 480    * Note that this property describes how to align the lines of text in
 481    * case there are several of them. The "xalign" property of #GtkCellRenderer,
 482    * on the other hand, sets the horizontal alignment of the whole text.
 483    *
 484    * Since: 2.10
 485    */
 486   g_object_class_install_property (object_class,
 487                                    PROP_ALIGN,
 488                                    g_param_spec_enum ("alignment",
 489                                                       P_("Alignment"),
 490                                                       P_("How to align the lines"),
 491                                                       PANGO_TYPE_ALIGNMENT,
 492                                                       PANGO_ALIGN_LEFT,
 493                                                       GTK_PARAM_READWRITE));
 494
 495   /* Style props are set or not */
 496
 497 #define ADD_SET_PROP(propname, propval, nick, blurb) g_object_class_install_property (object_class, propval, g_param_spec_boolean (propname, nick, blurb, FALSE, GTK_PARAM_READWRITE))
 498
 499   ADD_SET_PROP ("background-set", PROP_BACKGROUND_SET,
 500                 P_("Background set"),
 501                 P_("Whether this tag affects the background color"));
 502
 503   ADD_SET_PROP ("foreground-set", PROP_FOREGROUND_SET,
 504                 P_("Foreground set"),
 505                 P_("Whether this tag affects the foreground color"));
 506
 507   ADD_SET_PROP ("editable-set", PROP_EDITABLE_SET,
 508                 P_("Editability set"),
 509                 P_("Whether this tag affects text editability"));
 510
 511   ADD_SET_PROP ("family-set", PROP_FAMILY_SET,
 512                 P_("Font family set"),
 513                 P_("Whether this tag affects the font family"));
 514
 515   ADD_SET_PROP ("style-set", PROP_STYLE_SET,
 516                 P_("Font style set"),
 517                 P_("Whether this tag affects the font style"));
 518
 519   ADD_SET_PROP ("variant-set", PROP_VARIANT_SET,
 520                 P_("Font variant set"),
 521                 P_("Whether this tag affects the font variant"));
 522
 523   ADD_SET_PROP ("weight-set", PROP_WEIGHT_SET,
 524                 P_("Font weight set"),
 525                 P_("Whether this tag affects the font weight"));
 526
 527   ADD_SET_PROP ("stretch-set", PROP_STRETCH_SET,
 528                 P_("Font stretch set"),
 529                 P_("Whether this tag affects the font stretch"));
 530
 531   ADD_SET_PROP ("size-set", PROP_SIZE_SET,
 532                 P_("Font size set"),
 533                 P_("Whether this tag affects the font size"));
 534
 535   ADD_SET_PROP ("scale-set", PROP_SCALE_SET,
 536                 P_("Font scale set"),
 537                 P_("Whether this tag scales the font size by a factor"));
 538
 539   ADD_SET_PROP ("rise-set", PROP_RISE_SET,
 540                 P_("Rise set"),
 541                 P_("Whether this tag affects the rise"));
 542
 543   ADD_SET_PROP ("strikethrough-set", PROP_STRIKETHROUGH_SET,
 544                 P_("Strikethrough set"),
 545                 P_("Whether this tag affects strikethrough"));
 546
 547   ADD_SET_PROP ("underline-set", PROP_UNDERLINE_SET,
 548                 P_("Underline set"),
 549                 P_("Whether this tag affects underlining"));
 550
 551   ADD_SET_PROP ("language-set", PROP_LANGUAGE_SET,
 552                 P_("Language set"),
 553                 P_("Whether this tag affects the language the text is rendered as"));
 554
 555   ADD_SET_PROP ("ellipsize-set", PROP_ELLIPSIZE_SET,
 556                 P_("Ellipsize set"),
 557                 P_("Whether this tag affects the ellipsize mode"));
 558
 559   ADD_SET_PROP ("align-set", PROP_ALIGN_SET,
 560                 P_("Align set"),
 561                 P_("Whether this tag affects the alignment mode"));
 562
 563   /**
 564    * GtkCellRendererText::edited
 565    * @renderer: the object which received the signal.
 566    * @path: the path identifying the edited cell.
 567    * @new_text: the new text.
 568    *
 569    * This signal is emitted after @renderer has been edited.
 570    */
 571   text_cell_renderer_signals [EDITED] =
 572     g_signal_new (I_("edited"),
 573                   G_OBJECT_CLASS_TYPE (object_class),
 574                   G_SIGNAL_RUN_LAST,
 575                   G_STRUCT_OFFSET (GtkCellRendererTextClass, edited),
 576                   NULL, NULL,
 577                   _gtk_marshal_VOID__STRING_STRING,
 578                   G_TYPE_NONE, 2,
 579                   G_TYPE_STRING,
 580                   G_TYPE_STRING);
 581
 582   g_type_class_add_private (object_class, sizeof (GtkCellRendererTextPrivate));
 583 }
 584
 585 static void
 586 gtk_cell_renderer_text_finalize (GObject *object)
 587 {
 588   GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (object);
 589   GtkCellRendererTextPrivate *priv;
 590
 591   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (object);
 592
 593   pango_font_description_free (celltext->font);
 594
 595   g_free (celltext->text);
 596
 597   if (celltext->extra_attrs)
 598     pango_attr_list_unref (celltext->extra_attrs);
 599
 600   if (priv->language)
 601     g_object_unref (priv->language);
 602
 603   (* G_OBJECT_CLASS (gtk_cell_renderer_text_parent_class)->finalize) (object);
 604 }
 605
 606 static PangoFontMask
 607 get_property_font_set_mask (guint prop_id)
 608 {
 609   switch (prop_id)
 610     {
 611     case PROP_FAMILY_SET:
 612       return PANGO_FONT_MASK_FAMILY;
 613     case PROP_STYLE_SET:
 614       return PANGO_FONT_MASK_STYLE;
 615     case PROP_VARIANT_SET:
 616       return PANGO_FONT_MASK_VARIANT;
 617     case PROP_WEIGHT_SET:
 618       return PANGO_FONT_MASK_WEIGHT;
 619     case PROP_STRETCH_SET:
 620       return PANGO_FONT_MASK_STRETCH;
 621     case PROP_SIZE_SET:
 622       return PANGO_FONT_MASK_SIZE;
 623     }
 624
 625   return 0;
 626 }
 627
 628 static void
 629 gtk_cell_renderer_text_get_property (GObject        *object,
 630                                      guint           param_id,
 631                                      GValue         *value,
 632                                      GParamSpec     *pspec)
 633 {
 634   GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (object);
 635   GtkCellRendererTextPrivate *priv;
 636
 637   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (object);
 638
 639   switch (param_id)
 640     {
 641     case PROP_TEXT:
 642       g_value_set_string (value, celltext->text);
 643       break;
 644
 645     case PROP_ATTRIBUTES:
 646       g_value_set_boxed (value, celltext->extra_attrs);
 647       break;
 648
 649     case PROP_SINGLE_PARAGRAPH_MODE:
 650       g_value_set_boolean (value, priv->single_paragraph);
 651       break;
 652
 653     case PROP_BACKGROUND_GDK:
 654       {
 655         GdkColor color;
 656
 657         color.red = celltext->background.red;
 658         color.green = celltext->background.green;
 659         color.blue = celltext->background.blue;
 660
 661         g_value_set_boxed (value, &color);
 662       }
 663       break;
 664
 665     case PROP_FOREGROUND_GDK:
 666       {
 667         GdkColor color;
 668
 669         color.red = celltext->foreground.red;
 670         color.green = celltext->foreground.green;
 671         color.blue = celltext->foreground.blue;
 672
 673         g_value_set_boxed (value, &color);
 674       }
 675       break;
 676
 677     case PROP_FONT:
 678         g_value_take_string (value, pango_font_description_to_string (celltext->font));
 679       break;
 680
 681     case PROP_FONT_DESC:
 682       g_value_set_boxed (value, celltext->font);
 683       break;
 684
 685     case PROP_FAMILY:
 686       g_value_set_string (value, pango_font_description_get_family (celltext->font));
 687       break;
 688
 689     case PROP_STYLE:
 690       g_value_set_enum (value, pango_font_description_get_style (celltext->font));
 691       break;
 692
 693     case PROP_VARIANT:
 694       g_value_set_enum (value, pango_font_description_get_variant (celltext->font));
 695       break;
 696
 697     case PROP_WEIGHT:
 698       g_value_set_int (value, pango_font_description_get_weight (celltext->font));
 699       break;
 700
 701     case PROP_STRETCH:
 702       g_value_set_enum (value, pango_font_description_get_stretch (celltext->font));
 703       break;
 704
 705     case PROP_SIZE:
 706       g_value_set_int (value, pango_font_description_get_size (celltext->font));
 707       break;
 708
 709     case PROP_SIZE_POINTS:
 710       g_value_set_double (value, ((double)pango_font_description_get_size (celltext->font)) / (double)PANGO_SCALE);
 711       break;
 712
 713     case PROP_SCALE:
 714       g_value_set_double (value, celltext->font_scale);
 715       break;
 716
 717     case PROP_EDITABLE:
 718       g_value_set_boolean (value, celltext->editable);
 719       break;
 720
 721     case PROP_STRIKETHROUGH:
 722       g_value_set_boolean (value, celltext->strikethrough);
 723       break;
 724
 725     case PROP_UNDERLINE:
 726       g_value_set_enum (value, celltext->underline_style);
 727       break;
 728
 729     case PROP_RISE:
 730       g_value_set_int (value, celltext->rise);
 731       break;
 732
 733     case PROP_LANGUAGE:
 734       g_value_set_static_string (value, pango_language_to_string (priv->language));
 735       break;
 736
 737     case PROP_ELLIPSIZE:
 738       g_value_set_enum (value, priv->ellipsize);
 739       break;
 740
 741     case PROP_WRAP_MODE:
 742       g_value_set_enum (value, priv->wrap_mode);
 743       break;
 744
 745     case PROP_WRAP_WIDTH:
 746       g_value_set_int (value, priv->wrap_width);
 747       break;
 748
 749     case PROP_ALIGN:
 750       g_value_set_enum (value, priv->align);
 751       break;
 752
 753     case PROP_BACKGROUND_SET:
 754       g_value_set_boolean (value, celltext->background_set);
 755       break;
 756
 757     case PROP_FOREGROUND_SET:
 758       g_value_set_boolean (value, celltext->foreground_set);
 759       break;
 760
 761     case PROP_FAMILY_SET:
 762     case PROP_STYLE_SET:
 763     case PROP_VARIANT_SET:
 764     case PROP_WEIGHT_SET:
 765     case PROP_STRETCH_SET:
 766     case PROP_SIZE_SET:
 767       {
 768         PangoFontMask mask = get_property_font_set_mask (param_id);
 769         g_value_set_boolean (value, (pango_font_description_get_set_fields (celltext->font) & mask) != 0);
 770
 771         break;
 772       }
 773
 774     case PROP_SCALE_SET:
 775       g_value_set_boolean (value, celltext->scale_set);
 776       break;
 777
 778     case PROP_EDITABLE_SET:
 779       g_value_set_boolean (value, celltext->editable_set);
 780       break;
 781
 782     case PROP_STRIKETHROUGH_SET:
 783       g_value_set_boolean (value, celltext->strikethrough_set);
 784       break;
 785
 786     case PROP_UNDERLINE_SET:
 787       g_value_set_boolean (value, celltext->underline_set);
 788       break;
 789
 790     case  PROP_RISE_SET:
 791       g_value_set_boolean (value, celltext->rise_set);
 792       break;
 793
 794     case PROP_LANGUAGE_SET:
 795       g_value_set_boolean (value, priv->language_set);
 796       break;
 797
 798     case PROP_ELLIPSIZE_SET:
 799       g_value_set_boolean (value, priv->ellipsize_set);
 800       break;
 801
 802     case PROP_ALIGN_SET:
 803       g_value_set_boolean (value, priv->align_set);
 804       break;
 805
 806     case PROP_WIDTH_CHARS:
 807       g_value_set_int (value, priv->width_chars);
 808       break;
 809
 810     case PROP_BACKGROUND:
 811     case PROP_FOREGROUND:
 812     case PROP_MARKUP:
 813     default:
 814       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 815       break;
 816     }
 817 }
 818
 819
 820 static void
 821 set_bg_color (GtkCellRendererText *celltext,
 822               GdkColor            *color)
 823 {
 824   if (color)
 825     {
 826       if (!celltext->background_set)
 827         {
 828           celltext->background_set = TRUE;
 829           g_object_notify (G_OBJECT (celltext), "background-set");
 830         }
 831
 832       celltext->background.red = color->red;
 833       celltext->background.green = color->green;
 834       celltext->background.blue = color->blue;
 835     }
 836   else
 837     {
 838       if (celltext->background_set)
 839         {
 840           celltext->background_set = FALSE;
 841           g_object_notify (G_OBJECT (celltext), "background-set");
 842         }
 843     }
 844 }
 845
 846
 847 static void
 848 set_fg_color (GtkCellRendererText *celltext,
 849               GdkColor            *color)
 850 {
 851   if (color)
 852     {
 853       if (!celltext->foreground_set)
 854         {
 855           celltext->foreground_set = TRUE;
 856           g_object_notify (G_OBJECT (celltext), "foreground-set");
 857         }
 858
 859       celltext->foreground.red = color->red;
 860       celltext->foreground.green = color->green;
 861       celltext->foreground.blue = color->blue;
 862     }
 863   else
 864     {
 865       if (celltext->foreground_set)
 866         {
 867           celltext->foreground_set = FALSE;
 868           g_object_notify (G_OBJECT (celltext), "foreground-set");
 869         }
 870     }
 871 }
 872
 873 static PangoFontMask
 874 set_font_desc_fields (PangoFontDescription *desc,
 875                       PangoFontMask         to_set)
 876 {
 877   PangoFontMask changed_mask = 0;
 878
 879   if (to_set & PANGO_FONT_MASK_FAMILY)
 880     {
 881       const char *family = pango_font_description_get_family (desc);
 882       if (!family)
 883         {
 884           family = "sans";
 885           changed_mask |= PANGO_FONT_MASK_FAMILY;
 886         }
 887
 888       pango_font_description_set_family (desc, family);
 889     }
 890   if (to_set & PANGO_FONT_MASK_STYLE)
 891     pango_font_description_set_style (desc, pango_font_description_get_style (desc));
 892   if (to_set & PANGO_FONT_MASK_VARIANT)
 893     pango_font_description_set_variant (desc, pango_font_description_get_variant (desc));
 894   if (to_set & PANGO_FONT_MASK_WEIGHT)
 895     pango_font_description_set_weight (desc, pango_font_description_get_weight (desc));
 896   if (to_set & PANGO_FONT_MASK_STRETCH)
 897     pango_font_description_set_stretch (desc, pango_font_description_get_stretch (desc));
 898   if (to_set & PANGO_FONT_MASK_SIZE)
 899     {
 900       gint size = pango_font_description_get_size (desc);
 901       if (size <= 0)
 902         {
 903           size = 10 * PANGO_SCALE;
 904           changed_mask |= PANGO_FONT_MASK_SIZE;
 905         }
 906
 907       pango_font_description_set_size (desc, size);
 908     }
 909
 910   return changed_mask;
 911 }
 912
 913 static void
 914 notify_set_changed (GObject       *object,
 915                     PangoFontMask  changed_mask)
 916 {
 917   if (changed_mask & PANGO_FONT_MASK_FAMILY)
 918     g_object_notify (object, "family-set");
 919   if (changed_mask & PANGO_FONT_MASK_STYLE)
 920     g_object_notify (object, "style-set");
 921   if (changed_mask & PANGO_FONT_MASK_VARIANT)
 922     g_object_notify (object, "variant-set");
 923   if (changed_mask & PANGO_FONT_MASK_WEIGHT)
 924     g_object_notify (object, "weight-set");
 925   if (changed_mask & PANGO_FONT_MASK_STRETCH)
 926     g_object_notify (object, "stretch-set");
 927   if (changed_mask & PANGO_FONT_MASK_SIZE)
 928     g_object_notify (object, "size-set");
 929 }
 930
 931 static void
 932 notify_fields_changed (GObject       *object,
 933                        PangoFontMask  changed_mask)
 934 {
 935   if (changed_mask & PANGO_FONT_MASK_FAMILY)
 936     g_object_notify (object, "family");
 937   if (changed_mask & PANGO_FONT_MASK_STYLE)
 938     g_object_notify (object, "style");
 939   if (changed_mask & PANGO_FONT_MASK_VARIANT)
 940     g_object_notify (object, "variant");
 941   if (changed_mask & PANGO_FONT_MASK_WEIGHT)
 942     g_object_notify (object, "weight");
 943   if (changed_mask & PANGO_FONT_MASK_STRETCH)
 944     g_object_notify (object, "stretch");
 945   if (changed_mask & PANGO_FONT_MASK_SIZE)
 946     g_object_notify (object, "size");
 947 }
 948
 949 static void
 950 set_font_description (GtkCellRendererText  *celltext,
 951                       PangoFontDescription *font_desc)
 952 {
 953   GObject *object = G_OBJECT (celltext);
 954   PangoFontDescription *new_font_desc;
 955   PangoFontMask old_mask, new_mask, changed_mask, set_changed_mask;
 956
 957   if (font_desc)
 958     new_font_desc = pango_font_description_copy (font_desc);
 959   else
 960     new_font_desc = pango_font_description_new ();
 961
 962   old_mask = pango_font_description_get_set_fields (celltext->font);
 963   new_mask = pango_font_description_get_set_fields (new_font_desc);
 964
 965   changed_mask = old_mask | new_mask;
 966   set_changed_mask = old_mask ^ new_mask;
 967
 968   pango_font_description_free (celltext->font);
 969   celltext->font = new_font_desc;
 970
 971   g_object_freeze_notify (object);
 972
 973   g_object_notify (object, "font-desc");
 974   g_object_notify (object, "font");
 975
 976   if (changed_mask & PANGO_FONT_MASK_FAMILY)
 977     g_object_notify (object, "family");
 978   if (changed_mask & PANGO_FONT_MASK_STYLE)
 979     g_object_notify (object, "style");
 980   if (changed_mask & PANGO_FONT_MASK_VARIANT)
 981     g_object_notify (object, "variant");
 982   if (changed_mask & PANGO_FONT_MASK_WEIGHT)
 983     g_object_notify (object, "weight");
 984   if (changed_mask & PANGO_FONT_MASK_STRETCH)
 985     g_object_notify (object, "stretch");
 986   if (changed_mask & PANGO_FONT_MASK_SIZE)
 987     {
 988       g_object_notify (object, "size");
 989       g_object_notify (object, "size-points");
 990     }
 991
 992   notify_set_changed (object, set_changed_mask);
 993
 994   g_object_thaw_notify (object);
 995 }
 996
 997 static void
 998 gtk_cell_renderer_text_set_property (GObject      *object,
 999                                      guint         param_id,
1000                                      const GValue *value,
1001                                      GParamSpec   *pspec)
1002 {
1003   GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (object);
1004   GtkCellRendererTextPrivate *priv;
1005
1006   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (object);
1007
1008   switch (param_id)
1009     {
1010     case PROP_TEXT:
1011       g_free (celltext->text);
1012
1013       if (priv->markup_set)
1014         {
1015           if (celltext->extra_attrs)
1016             pango_attr_list_unref (celltext->extra_attrs);
1017           celltext->extra_attrs = NULL;
1018           priv->markup_set = FALSE;
1019         }
1020
1021       celltext->text = g_strdup (g_value_get_string (value));
1022       g_object_notify (object, "text");
1023       break;
1024
1025     case PROP_ATTRIBUTES:
1026       if (celltext->extra_attrs)
1027         pango_attr_list_unref (celltext->extra_attrs);
1028
1029       celltext->extra_attrs = g_value_get_boxed (value);
1030       if (celltext->extra_attrs)
1031         pango_attr_list_ref (celltext->extra_attrs);
1032       break;
1033     case PROP_MARKUP:
1034       {
1035         const gchar *str;
1036         gchar *text = NULL;
1037         GError *error = NULL;
1038         PangoAttrList *attrs = NULL;
1039
1040         str = g_value_get_string (value);
1041         if (str && !pango_parse_markup (str,
1042                                         -1,
1043                                         0,
1044                                         &attrs,
1045                                         &text,
1046                                         NULL,
1047                                         &error))
1048           {
1049             g_warning ("Failed to set text from markup due to error parsing markup: %s",
1050                        error->message);
1051             g_error_free (error);
1052             return;
1053           }
1054
1055         g_free (celltext->text);
1056
1057         if (celltext->extra_attrs)
1058           pango_attr_list_unref (celltext->extra_attrs);
1059
1060         celltext->text = text;
1061         celltext->extra_attrs = attrs;
1062         priv->markup_set = TRUE;
1063       }
1064       break;
1065
1066     case PROP_SINGLE_PARAGRAPH_MODE:
1067       priv->single_paragraph = g_value_get_boolean (value);
1068       break;
1069
1070     case PROP_BACKGROUND:
1071       {
1072         GdkColor color;
1073
1074         if (!g_value_get_string (value))
1075           set_bg_color (celltext, NULL);       /* reset to backgrounmd_set to FALSE */
1076         else if (gdk_color_parse (g_value_get_string (value), &color))
1077           set_bg_color (celltext, &color);
1078         else
1079           g_warning ("Don't know color `%s'", g_value_get_string (value));
1080
1081         g_object_notify (object, "background-gdk");
1082       }
1083       break;
1084
1085     case PROP_FOREGROUND:
1086       {
1087         GdkColor color;
1088
1089         if (!g_value_get_string (value))
1090           set_fg_color (celltext, NULL);       /* reset to foreground_set to FALSE */
1091         else if (gdk_color_parse (g_value_get_string (value), &color))
1092           set_fg_color (celltext, &color);
1093         else
1094           g_warning ("Don't know color `%s'", g_value_get_string (value));
1095
1096         g_object_notify (object, "foreground-gdk");
1097       }
1098       break;
1099
1100     case PROP_BACKGROUND_GDK:
1101       /* This notifies the GObject itself. */
1102       set_bg_color (celltext, g_value_get_boxed (value));
1103       break;
1104
1105     case PROP_FOREGROUND_GDK:
1106       /* This notifies the GObject itself. */
1107       set_fg_color (celltext, g_value_get_boxed (value));
1108       break;
1109
1110     case PROP_FONT:
1111       {
1112         PangoFontDescription *font_desc = NULL;
1113         const gchar *name;
1114
1115         name = g_value_get_string (value);
1116
1117         if (name)
1118           font_desc = pango_font_description_from_string (name);
1119
1120         set_font_description (celltext, font_desc);
1121
1122         pango_font_description_free (font_desc);
1123
1124         if (celltext->fixed_height_rows != -1)
1125           celltext->calc_fixed_height = TRUE;
1126       }
1127       break;
1128
1129     case PROP_FONT_DESC:
1130       set_font_description (celltext, g_value_get_boxed (value));
1131
1132       if (celltext->fixed_height_rows != -1)
1133         celltext->calc_fixed_height = TRUE;
1134       break;
1135
1136     case PROP_FAMILY:
1137     case PROP_STYLE:
1138     case PROP_VARIANT:
1139     case PROP_WEIGHT:
1140     case PROP_STRETCH:
1141     case PROP_SIZE:
1142     case PROP_SIZE_POINTS:
1143       {
1144         PangoFontMask old_set_mask = pango_font_description_get_set_fields (celltext->font);
1145
1146         switch (param_id)
1147           {
1148           case PROP_FAMILY:
1149             pango_font_description_set_family (celltext->font,
1150                                                g_value_get_string (value));
1151             break;
1152           case PROP_STYLE:
1153             pango_font_description_set_style (celltext->font,
1154                                               g_value_get_enum (value));
1155             break;
1156           case PROP_VARIANT:
1157             pango_font_description_set_variant (celltext->font,
1158                                                 g_value_get_enum (value));
1159             break;
1160           case PROP_WEIGHT:
1161             pango_font_description_set_weight (celltext->font,
1162                                                g_value_get_int (value));
1163             break;
1164           case PROP_STRETCH:
1165             pango_font_description_set_stretch (celltext->font,
1166                                                 g_value_get_enum (value));
1167             break;
1168           case PROP_SIZE:
1169             pango_font_description_set_size (celltext->font,
1170                                              g_value_get_int (value));
1171             g_object_notify (object, "size-points");
1172             break;
1173           case PROP_SIZE_POINTS:
1174             pango_font_description_set_size (celltext->font,
1175                                              g_value_get_double (value) * PANGO_SCALE);
1176             g_object_notify (object, "size");
1177             break;
1178           }
1179
1180         if (celltext->fixed_height_rows != -1)
1181           celltext->calc_fixed_height = TRUE;
1182
1183         notify_set_changed (object, old_set_mask & pango_font_description_get_set_fields (celltext->font));
1184         g_object_notify (object, "font-desc");
1185         g_object_notify (object, "font");
1186
1187         break;
1188       }
1189
1190     case PROP_SCALE:
1191       celltext->font_scale = g_value_get_double (value);
1192       celltext->scale_set = TRUE;
1193       if (celltext->fixed_height_rows != -1)
1194         celltext->calc_fixed_height = TRUE;
1195       g_object_notify (object, "scale-set");
1196       break;
1197
1198     case PROP_EDITABLE:
1199       celltext->editable = g_value_get_boolean (value);
1200       celltext->editable_set = TRUE;
1201       if (celltext->editable)
1202         GTK_CELL_RENDERER (celltext)->mode = GTK_CELL_RENDERER_MODE_EDITABLE;
1203       else
1204         GTK_CELL_RENDERER (celltext)->mode = GTK_CELL_RENDERER_MODE_INERT;
1205       g_object_notify (object, "editable-set");
1206       break;
1207
1208     case PROP_STRIKETHROUGH:
1209       celltext->strikethrough = g_value_get_boolean (value);
1210       celltext->strikethrough_set = TRUE;
1211       g_object_notify (object, "strikethrough-set");
1212       break;
1213
1214     case PROP_UNDERLINE:
1215       celltext->underline_style = g_value_get_enum (value);
1216       celltext->underline_set = TRUE;
1217       g_object_notify (object, "underline-set");
1218
1219       break;
1220
1221     case PROP_RISE:
1222       celltext->rise = g_value_get_int (value);
1223       celltext->rise_set = TRUE;
1224       g_object_notify (object, "rise-set");
1225       if (celltext->fixed_height_rows != -1)
1226         celltext->calc_fixed_height = TRUE;
1227       break;
1228
1229     case PROP_LANGUAGE:
1230       priv->language_set = TRUE;
1231       if (priv->language)
1232         g_object_unref (priv->language);
1233       priv->language = pango_language_from_string (g_value_get_string (value));
1234       g_object_notify (object, "language-set");
1235       break;
1236
1237     case PROP_ELLIPSIZE:
1238       priv->ellipsize = g_value_get_enum (value);
1239       priv->ellipsize_set = TRUE;
1240       g_object_notify (object, "ellipsize-set");
1241       break;
1242
1243     case PROP_WRAP_MODE:
1244       priv->wrap_mode = g_value_get_enum (value);
1245       break;
1246
1247     case PROP_WRAP_WIDTH:
1248       priv->wrap_width = g_value_get_int (value);
1249       break;
1250
1251     case PROP_WIDTH_CHARS:
1252       priv->width_chars = g_value_get_int (value);
1253       break;
1254
1255     case PROP_ALIGN:
1256       priv->align = g_value_get_enum (value);
1257       priv->align_set = TRUE;
1258       g_object_notify (object, "align-set");
1259       break;
1260
1261     case PROP_BACKGROUND_SET:
1262       celltext->background_set = g_value_get_boolean (value);
1263       break;
1264
1265     case PROP_FOREGROUND_SET:
1266       celltext->foreground_set = g_value_get_boolean (value);
1267       break;
1268
1269     case PROP_FAMILY_SET:
1270     case PROP_STYLE_SET:
1271     case PROP_VARIANT_SET:
1272     case PROP_WEIGHT_SET:
1273     case PROP_STRETCH_SET:
1274     case PROP_SIZE_SET:
1275       if (!g_value_get_boolean (value))
1276         {
1277           pango_font_description_unset_fields (celltext->font,
1278                                                get_property_font_set_mask (param_id));
1279         }
1280       else
1281         {
1282           PangoFontMask changed_mask;
1283
1284           changed_mask = set_font_desc_fields (celltext->font,
1285                                                get_property_font_set_mask (param_id));
1286           notify_fields_changed (G_OBJECT (celltext), changed_mask);
1287         }
1288       break;
1289
1290     case PROP_SCALE_SET:
1291       celltext->scale_set = g_value_get_boolean (value);
1292       break;
1293
1294     case PROP_EDITABLE_SET:
1295       celltext->editable_set = g_value_get_boolean (value);
1296       break;
1297
1298     case PROP_STRIKETHROUGH_SET:
1299       celltext->strikethrough_set = g_value_get_boolean (value);
1300       break;
1301
1302     case PROP_UNDERLINE_SET:
1303       celltext->underline_set = g_value_get_boolean (value);
1304       break;
1305
1306     case PROP_RISE_SET:
1307       celltext->rise_set = g_value_get_boolean (value);
1308       break;
1309
1310     case PROP_LANGUAGE_SET:
1311       priv->language_set = g_value_get_boolean (value);
1312       break;
1313
1314     case PROP_ELLIPSIZE_SET:
1315       priv->ellipsize_set = g_value_get_boolean (value);
1316       break;
1317
1318     case PROP_ALIGN_SET:
1319       priv->align_set = g_value_get_boolean (value);
1320       break;
1321
1322     default:
1323       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
1324       break;
1325     }
1326 }
1327
1328 /**
1329  * gtk_cell_renderer_text_new:
1330  *
1331  * Creates a new #GtkCellRendererText. Adjust how text is drawn using
1332  * object properties. Object properties can be
1333  * set globally (with g_object_set()). Also, with #GtkTreeViewColumn,
1334  * you can bind a property to a value in a #GtkTreeModel. For example,
1335  * you can bind the "text" property on the cell renderer to a string
1336  * value in the model, thus rendering a different string in each row
1337  * of the #GtkTreeView
1338  *
1339  * Return value: the new cell renderer
1340  **/
1341 GtkCellRenderer *
1342 gtk_cell_renderer_text_new (void)
1343 {
1344   return g_object_new (GTK_TYPE_CELL_RENDERER_TEXT, NULL);
1345 }
1346
1347 static void
1348 add_attr (PangoAttrList  *attr_list,
1349           PangoAttribute *attr)
1350 {
1351   attr->start_index = 0;
1352   attr->end_index = G_MAXINT;
1353
1354   pango_attr_list_insert (attr_list, attr);
1355 }
1356
1357 static PangoLayout*
1358 get_layout (GtkCellRendererText *celltext,
1359             GtkWidget           *widget,
1360             gboolean             will_render,
1361             GtkCellRendererState flags)
1362 {
1363   PangoAttrList *attr_list;
1364   PangoLayout *layout;
1365   PangoUnderline uline;
1366   GtkCellRendererTextPrivate *priv;
1367
1368   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (celltext);
1369
1370   layout = gtk_widget_create_pango_layout (widget, celltext->text);
1371
1372   if (celltext->extra_attrs)
1373     attr_list = pango_attr_list_copy (celltext->extra_attrs);
1374   else
1375     attr_list = pango_attr_list_new ();
1376
1377   pango_layout_set_single_paragraph_mode (layout, priv->single_paragraph);
1378
1379   if (will_render)
1380     {
1381       /* Add options that affect appearance but not size */
1382
1383       /* note that background doesn't go here, since it affects
1384        * background_area not the PangoLayout area
1385        */
1386
1387       if (celltext->foreground_set
1388           && (flags & GTK_CELL_RENDERER_SELECTED) == 0)
1389         {
1390           PangoColor color;
1391
1392           color = celltext->foreground;
1393
1394           add_attr (attr_list,
1395                     pango_attr_foreground_new (color.red, color.green, color.blue));
1396         }
1397
1398       if (celltext->strikethrough_set)
1399         add_attr (attr_list,
1400                   pango_attr_strikethrough_new (celltext->strikethrough));
1401     }
1402
1403   add_attr (attr_list, pango_attr_font_desc_new (celltext->font));
1404
1405   if (celltext->scale_set &&
1406       celltext->font_scale != 1.0)
1407     add_attr (attr_list, pango_attr_scale_new (celltext->font_scale));
1408
1409   if (celltext->underline_set)
1410     uline = celltext->underline_style;
1411   else
1412     uline = PANGO_UNDERLINE_NONE;
1413
1414   if (priv->language_set)
1415     add_attr (attr_list, pango_attr_language_new (priv->language));
1416
1417   if ((flags & GTK_CELL_RENDERER_PRELIT) == GTK_CELL_RENDERER_PRELIT)
1418     {
1419       switch (uline)
1420         {
1421         case PANGO_UNDERLINE_NONE:
1422           uline = PANGO_UNDERLINE_SINGLE;
1423           break;
1424
1425         case PANGO_UNDERLINE_SINGLE:
1426           uline = PANGO_UNDERLINE_DOUBLE;
1427           break;
1428
1429         default:
1430           break;
1431         }
1432     }
1433
1434   if (uline != PANGO_UNDERLINE_NONE)
1435     add_attr (attr_list, pango_attr_underline_new (celltext->underline_style));
1436
1437   if (celltext->rise_set)
1438     add_attr (attr_list, pango_attr_rise_new (celltext->rise));
1439
1440   if (priv->ellipsize_set)
1441     pango_layout_set_ellipsize (layout, priv->ellipsize);
1442   else
1443     pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_NONE);
1444
1445   if (priv->wrap_width != -1)
1446     {
1447       pango_layout_set_width (layout, priv->wrap_width * PANGO_SCALE);
1448       pango_layout_set_wrap (layout, priv->wrap_mode);
1449     }
1450   else
1451     {
1452       pango_layout_set_width (layout, -1);
1453       pango_layout_set_wrap (layout, PANGO_WRAP_CHAR);
1454     }
1455
1456   if (priv->align_set)
1457     pango_layout_set_alignment (layout, priv->align);
1458   else
1459     {
1460       PangoAlignment align;
1461
1462       if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
1463         align = PANGO_ALIGN_RIGHT;
1464       else
1465         align = PANGO_ALIGN_LEFT;
1466
1467       pango_layout_set_alignment (layout, align);
1468     }
1469
1470   pango_layout_set_attributes (layout, attr_list);
1471
1472   pango_attr_list_unref (attr_list);
1473
1474   return layout;
1475 }
1476
1477 static void
1478 get_size (GtkCellRenderer *cell,
1479           GtkWidget       *widget,
1480           GdkRectangle    *cell_area,
1481           PangoLayout     *layout,
1482           gint            *x_offset,
1483           gint            *y_offset,
1484           gint            *width,
1485           gint            *height)
1486 {
1487   GtkCellRendererText *celltext = (GtkCellRendererText *) cell;
1488   PangoRectangle rect;
1489   GtkCellRendererTextPrivate *priv;
1490
1491   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (cell);
1492
1493   if (celltext->calc_fixed_height)
1494     {
1495       PangoContext *context;
1496       PangoFontMetrics *metrics;
1497       PangoFontDescription *font_desc;
1498       gint row_height;
1499
1500       font_desc = pango_font_description_copy_static (widget->style->font_desc);
1501       pango_font_description_merge_static (font_desc, celltext->font, TRUE);
1502
1503       if (celltext->scale_set)
1504         pango_font_description_set_size (font_desc,
1505                                          celltext->font_scale * pango_font_description_get_size (font_desc));
1506
1507       context = gtk_widget_get_pango_context (widget);
1508
1509       metrics = pango_context_get_metrics (context,
1510                                            font_desc,
1511                                            pango_context_get_language (context));
1512       row_height = (pango_font_metrics_get_ascent (metrics) +
1513                     pango_font_metrics_get_descent (metrics));
1514       pango_font_metrics_unref (metrics);
1515
1516       pango_font_description_free (font_desc);
1517
1518       gtk_cell_renderer_set_fixed_size (cell,
1519                                         cell->width, 2*cell->ypad +
1520                                         celltext->fixed_height_rows * PANGO_PIXELS (row_height));
1521
1522       if (height)
1523         {
1524           *height = cell->height;
1525           height = NULL;
1526         }
1527       celltext->calc_fixed_height = FALSE;
1528       if (width == NULL)
1529         return;
1530     }
1531
1532   if (layout)
1533     g_object_ref (layout);
1534   else
1535     layout = get_layout (celltext, widget, FALSE, 0);
1536
1537   pango_layout_get_pixel_extents (layout, NULL, &rect);
1538
1539   if (height)
1540     *height = cell->ypad * 2 + rect.height;
1541
1542   /* The minimum size for ellipsized labels is ~ 3 chars */
1543   if (width)
1544     {
1545       if (priv->ellipsize || priv->width_chars > 0)
1546         {
1547           PangoContext *context;
1548           PangoFontMetrics *metrics;
1549           gint char_width;
1550
1551           context = pango_layout_get_context (layout);
1552           metrics = pango_context_get_metrics (context, widget->style->font_desc, pango_context_get_language (context));
1553
1554           char_width = pango_font_metrics_get_approximate_char_width (metrics);
1555           pango_font_metrics_unref (metrics);
1556
1557           *width = cell->xpad * 2 + (PANGO_PIXELS (char_width) * MAX (priv->width_chars, 3));
1558         }
1559       else
1560         {
1561           *width = cell->xpad * 2 + rect.x + rect.width;
1562         }
1563     }
1564
1565   if (cell_area)
1566     {
1567       if (x_offset)
1568         {
1569           if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
1570             *x_offset = (1.0 - cell->xalign) * (cell_area->width - (rect.x + rect.width + (2 * cell->xpad)));
1571           else
1572             *x_offset = cell->xalign * (cell_area->width - (rect.x + rect.width + (2 * cell->xpad)));
1573
1574           if ((priv->ellipsize_set && priv->ellipsize != PANGO_ELLIPSIZE_NONE) || priv->wrap_width != -1)
1575             *x_offset = MAX(*x_offset, 0);
1576         }
1577       if (y_offset)
1578         {
1579           *y_offset = cell->yalign * (cell_area->height - (rect.height + (2 * cell->ypad)));
1580           *y_offset = MAX (*y_offset, 0);
1581         }
1582     }
1583   else
1584     {
1585       if (x_offset) *x_offset = 0;
1586       if (y_offset) *y_offset = 0;
1587     }
1588
1589   g_object_unref (layout);
1590 }
1591
1592
1593 static void
1594 gtk_cell_renderer_text_get_size (GtkCellRenderer *cell,
1595                                  GtkWidget       *widget,
1596                                  GdkRectangle    *cell_area,
1597                                  gint            *x_offset,
1598                                  gint            *y_offset,
1599                                  gint            *width,
1600                                  gint            *height)
1601 {
1602   get_size (cell, widget, cell_area, NULL,
1603             x_offset, y_offset, width, height);
1604 }
1605
1606 static void
1607 gtk_cell_renderer_text_render (GtkCellRenderer      *cell,
1608                                GdkDrawable          *window,
1609                                GtkWidget            *widget,
1610                                GdkRectangle         *background_area,
1611                                GdkRectangle         *cell_area,
1612                                GdkRectangle         *expose_area,
1613                                GtkCellRendererState  flags)
1614
1615 {
1616   GtkCellRendererText *celltext = (GtkCellRendererText *) cell;
1617   PangoLayout *layout;
1618   GtkStateType state;
1619   gint x_offset;
1620   gint y_offset;
1621   GtkCellRendererTextPrivate *priv;
1622
1623   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (cell);
1624
1625   layout = get_layout (celltext, widget, TRUE, flags);
1626   get_size (cell, widget, cell_area, layout, &x_offset, &y_offset, NULL, NULL);
1627
1628   if (!cell->sensitive)
1629     {
1630       state = GTK_STATE_INSENSITIVE;
1631     }
1632   else if ((flags & GTK_CELL_RENDERER_SELECTED) == GTK_CELL_RENDERER_SELECTED)
1633     {
1634       if (GTK_WIDGET_HAS_FOCUS (widget))
1635         state = GTK_STATE_SELECTED;
1636       else
1637         state = GTK_STATE_ACTIVE;
1638     }
1639   else if ((flags & GTK_CELL_RENDERER_PRELIT) == GTK_CELL_RENDERER_PRELIT &&
1640            GTK_WIDGET_STATE (widget) == GTK_STATE_PRELIGHT)
1641     {
1642       state = GTK_STATE_PRELIGHT;
1643     }
1644   else
1645     {
1646       if (GTK_WIDGET_STATE (widget) == GTK_STATE_INSENSITIVE)
1647         state = GTK_STATE_INSENSITIVE;
1648       else
1649         state = GTK_STATE_NORMAL;
1650     }
1651
1652   if (celltext->background_set &&
1653       (flags & GTK_CELL_RENDERER_SELECTED) == 0)
1654     {
1655       cairo_t *cr = gdk_cairo_create (window);
1656
1657       if (expose_area)
1658         {
1659           gdk_cairo_rectangle (cr, expose_area);
1660           cairo_clip (cr);
1661         }
1662
1663       gdk_cairo_rectangle (cr, background_area);
1664       cairo_set_source_rgb (cr,
1665                             celltext->background.red / 65535.,
1666                             celltext->background.green / 65535.,
1667                             celltext->background.blue / 65535.);
1668       cairo_fill (cr);
1669
1670       cairo_destroy (cr);
1671     }
1672
1673   if (priv->ellipsize_set && priv->ellipsize != PANGO_ELLIPSIZE_NONE)
1674     pango_layout_set_width (layout,
1675                             (cell_area->width - x_offset - 2 * cell->xpad) * PANGO_SCALE);
1676   else if (priv->wrap_width == -1)
1677     pango_layout_set_width (layout, -1);
1678
1679   gtk_paint_layout (widget->style,
1680                     window,
1681                     state,
1682                     TRUE,
1683                     expose_area,
1684                     widget,
1685                     "cellrenderertext",
1686                     cell_area->x + x_offset + cell->xpad,
1687                     cell_area->y + y_offset + cell->ypad,
1688                     layout);
1689
1690   g_object_unref (layout);
1691 }
1692
1693 static void
1694 gtk_cell_renderer_text_editing_done (GtkCellEditable *entry,
1695                                      gpointer         data)
1696 {
1697   const gchar *path;
1698   const gchar *new_text;
1699   GtkCellRendererTextPrivate *priv;
1700
1701   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (data);
1702
1703   priv->entry = NULL;
1704
1705   if (priv->focus_out_id > 0)
1706     {
1707       g_signal_handler_disconnect (entry, priv->focus_out_id);
1708       priv->focus_out_id = 0;
1709     }
1710
1711   if (priv->populate_popup_id > 0)
1712     {
1713       g_signal_handler_disconnect (entry, priv->populate_popup_id);
1714       priv->populate_popup_id = 0;
1715     }
1716
1717   if (priv->entry_menu_popdown_timeout)
1718     {
1719       g_source_remove (priv->entry_menu_popdown_timeout);
1720       priv->entry_menu_popdown_timeout = 0;
1721     }
1722
1723   gtk_cell_renderer_stop_editing (GTK_CELL_RENDERER (data),
1724                                   GTK_ENTRY (entry)->editing_canceled);
1725   if (GTK_ENTRY (entry)->editing_canceled)
1726     return;
1727
1728   path = g_object_get_data (G_OBJECT (entry), GTK_CELL_RENDERER_TEXT_PATH);
1729   new_text = gtk_entry_get_text (GTK_ENTRY (entry));
1730
1731   g_signal_emit (data, text_cell_renderer_signals[EDITED], 0, path, new_text);
1732 }
1733
1734 static gboolean
1735 popdown_timeout (gpointer data)
1736 {
1737   GtkCellRendererTextPrivate *priv;
1738
1739   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (data);
1740
1741   priv->entry_menu_popdown_timeout = 0;
1742
1743   if (!GTK_WIDGET_HAS_FOCUS (priv->entry))
1744     gtk_cell_renderer_text_editing_done (GTK_CELL_EDITABLE (priv->entry), data);
1745
1746   return FALSE;
1747 }
1748
1749 static void
1750 gtk_cell_renderer_text_popup_unmap (GtkMenu *menu,
1751                                     gpointer data)
1752 {
1753   GtkCellRendererTextPrivate *priv;
1754
1755   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (data);
1756
1757   priv->in_entry_menu = FALSE;
1758
1759   if (priv->entry_menu_popdown_timeout)
1760     return;
1761
1762   priv->entry_menu_popdown_timeout = gdk_threads_add_timeout (500, popdown_timeout,
1763                                                     data);
1764 }
1765
1766 static void
1767 gtk_cell_renderer_text_populate_popup (GtkEntry *entry,
1768                                        GtkMenu  *menu,
1769                                        gpointer  data)
1770 {
1771   GtkCellRendererTextPrivate *priv;
1772
1773   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (data);
1774
1775   if (priv->entry_menu_popdown_timeout)
1776     {
1777       g_source_remove (priv->entry_menu_popdown_timeout);
1778       priv->entry_menu_popdown_timeout = 0;
1779     }
1780
1781   priv->in_entry_menu = TRUE;
1782
1783   g_signal_connect (menu, "unmap",
1784                     G_CALLBACK (gtk_cell_renderer_text_popup_unmap), data);
1785 }
1786
1787 static gboolean
1788 gtk_cell_renderer_text_focus_out_event (GtkWidget *entry,
1789                                         GdkEvent  *event,
1790                                         gpointer   data)
1791 {
1792   GtkCellRendererTextPrivate *priv;
1793
1794   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (data);
1795
1796   if (priv->in_entry_menu)
1797     return FALSE;
1798
1799   GTK_ENTRY (entry)->editing_canceled = TRUE;
1800   gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (entry));
1801   gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (entry));
1802
1803   /* entry needs focus-out-event */
1804   return FALSE;
1805 }
1806
1807 static GtkCellEditable *
1808 gtk_cell_renderer_text_start_editing (GtkCellRenderer      *cell,
1809                                       GdkEvent             *event,
1810                                       GtkWidget            *widget,
1811                                       const gchar          *path,
1812                                       GdkRectangle         *background_area,
1813                                       GdkRectangle         *cell_area,
1814                                       GtkCellRendererState  flags)
1815 {
1816   GtkRequisition requisition;
1817   GtkCellRendererText *celltext;
1818   GtkCellRendererTextPrivate *priv;
1819
1820   celltext = GTK_CELL_RENDERER_TEXT (cell);
1821   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (cell);
1822
1823   /* If the cell isn't editable we return NULL. */
1824   if (celltext->editable == FALSE)
1825     return NULL;
1826
1827   priv->entry = g_object_new (GTK_TYPE_ENTRY,
1828                               "has-frame", FALSE,
1829                               "xalign", cell->xalign,
1830                               NULL);
1831
1832   if (celltext->text)
1833     gtk_entry_set_text (GTK_ENTRY (priv->entry), celltext->text);
1834   g_object_set_data_full (G_OBJECT (priv->entry), I_(GTK_CELL_RENDERER_TEXT_PATH), g_strdup (path), g_free);
1835
1836   gtk_editable_select_region (GTK_EDITABLE (priv->entry), 0, -1);
1837
1838   gtk_widget_size_request (priv->entry, &requisition);
1839   if (requisition.height < cell_area->height)
1840     {
1841       GtkBorder *style_border;
1842       GtkBorder border;
1843
1844       gtk_widget_style_get (priv->entry,
1845                             "inner-border", &style_border,
1846                             NULL);
1847
1848       if (style_border)
1849         {
1850           border = *style_border;
1851           g_boxed_free (GTK_TYPE_BORDER, style_border);
1852         }
1853       else
1854         {
1855           /* Since boxed style properties can't have default values ... */
1856           border.left = 2;
1857           border.right = 2;
1858         }
1859
1860       border.top = (cell_area->height - requisition.height) / 2;
1861       border.bottom = (cell_area->height - requisition.height) / 2;
1862       gtk_entry_set_inner_border (GTK_ENTRY (priv->entry), &border);
1863     }
1864
1865   priv->in_entry_menu = FALSE;
1866   if (priv->entry_menu_popdown_timeout)
1867     {
1868       g_source_remove (priv->entry_menu_popdown_timeout);
1869       priv->entry_menu_popdown_timeout = 0;
1870     }
1871
1872   g_signal_connect (priv->entry,
1873                     "editing_done",
1874                     G_CALLBACK (gtk_cell_renderer_text_editing_done),
1875                     celltext);
1876   priv->focus_out_id = g_signal_connect_after (priv->entry, "focus_out_event",
1877                                                G_CALLBACK (gtk_cell_renderer_text_focus_out_event),
1878                                                celltext);
1879   priv->populate_popup_id =
1880     g_signal_connect (priv->entry, "populate_popup",
1881                       G_CALLBACK (gtk_cell_renderer_text_populate_popup),
1882                       celltext);
1883
1884   gtk_widget_show (priv->entry);
1885
1886   return GTK_CELL_EDITABLE (priv->entry);
1887 }
1888
1889 /**
1890  * gtk_cell_renderer_text_set_fixed_height_from_font:
1891  * @renderer: A #GtkCellRendererText
1892  * @number_of_rows: Number of rows of text each cell renderer is allocated, or -1
1893  *
1894  * Sets the height of a renderer to explicitly be determined by the "font" and
1895  * "y_pad" property set on it.  Further changes in these properties do not
1896  * affect the height, so they must be accompanied by a subsequent call to this
1897  * function.  Using this function is unflexible, and should really only be used
1898  * if calculating the size of a cell is too slow (ie, a massive number of cells
1899  * displayed).  If @number_of_rows is -1, then the fixed height is unset, and
1900  * the height is determined by the properties again.
1901  **/
1902 void
1903 gtk_cell_renderer_text_set_fixed_height_from_font (GtkCellRendererText *renderer,
1904                                                    gint                 number_of_rows)
1905 {
1906   g_return_if_fail (GTK_IS_CELL_RENDERER_TEXT (renderer));
1907   g_return_if_fail (number_of_rows == -1 || number_of_rows > 0);
1908
1909   if (number_of_rows == -1)
1910     {
1911       gtk_cell_renderer_set_fixed_size (GTK_CELL_RENDERER (renderer),
1912                                         GTK_CELL_RENDERER (renderer)->width,
1913                                         -1);
1914     }
1915   else
1916     {
1917       renderer->fixed_height_rows = number_of_rows;
1918       renderer->calc_fixed_height = TRUE;
1919     }
1920 }
1921
1922 #define __GTK_CELL_RENDERER_TEXT_C__
1923 #include "gtkaliasdef.c"