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.
 479    *
 480    * Since: 2.10
 481    */
 482   g_object_class_install_property (object_class,
 483                                    PROP_ALIGN,
 484                                    g_param_spec_enum ("alignment",
 485                                                       P_("Alignment"),
 486                                                       P_("How to align the lines"),
 487                                                       PANGO_TYPE_ALIGNMENT,
 488                                                       PANGO_ALIGN_LEFT,
 489                                                       GTK_PARAM_READWRITE));
 490
 491   /* Style props are set or not */
 492
 493 #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))
 494
 495   ADD_SET_PROP ("background-set", PROP_BACKGROUND_SET,
 496                 P_("Background set"),
 497                 P_("Whether this tag affects the background color"));
 498
 499   ADD_SET_PROP ("foreground-set", PROP_FOREGROUND_SET,
 500                 P_("Foreground set"),
 501                 P_("Whether this tag affects the foreground color"));
 502
 503   ADD_SET_PROP ("editable-set", PROP_EDITABLE_SET,
 504                 P_("Editability set"),
 505                 P_("Whether this tag affects text editability"));
 506
 507   ADD_SET_PROP ("family-set", PROP_FAMILY_SET,
 508                 P_("Font family set"),
 509                 P_("Whether this tag affects the font family"));
 510
 511   ADD_SET_PROP ("style-set", PROP_STYLE_SET,
 512                 P_("Font style set"),
 513                 P_("Whether this tag affects the font style"));
 514
 515   ADD_SET_PROP ("variant-set", PROP_VARIANT_SET,
 516                 P_("Font variant set"),
 517                 P_("Whether this tag affects the font variant"));
 518
 519   ADD_SET_PROP ("weight-set", PROP_WEIGHT_SET,
 520                 P_("Font weight set"),
 521                 P_("Whether this tag affects the font weight"));
 522
 523   ADD_SET_PROP ("stretch-set", PROP_STRETCH_SET,
 524                 P_("Font stretch set"),
 525                 P_("Whether this tag affects the font stretch"));
 526
 527   ADD_SET_PROP ("size-set", PROP_SIZE_SET,
 528                 P_("Font size set"),
 529                 P_("Whether this tag affects the font size"));
 530
 531   ADD_SET_PROP ("scale-set", PROP_SCALE_SET,
 532                 P_("Font scale set"),
 533                 P_("Whether this tag scales the font size by a factor"));
 534
 535   ADD_SET_PROP ("rise-set", PROP_RISE_SET,
 536                 P_("Rise set"),
 537                 P_("Whether this tag affects the rise"));
 538
 539   ADD_SET_PROP ("strikethrough-set", PROP_STRIKETHROUGH_SET,
 540                 P_("Strikethrough set"),
 541                 P_("Whether this tag affects strikethrough"));
 542
 543   ADD_SET_PROP ("underline-set", PROP_UNDERLINE_SET,
 544                 P_("Underline set"),
 545                 P_("Whether this tag affects underlining"));
 546
 547   ADD_SET_PROP ("language-set", PROP_LANGUAGE_SET,
 548                 P_("Language set"),
 549                 P_("Whether this tag affects the language the text is rendered as"));
 550
 551   ADD_SET_PROP ("ellipsize-set", PROP_ELLIPSIZE_SET,
 552                 P_("Ellipsize set"),
 553                 P_("Whether this tag affects the ellipsize mode"));
 554
 555   ADD_SET_PROP ("align-set", PROP_ALIGN_SET,
 556                 P_("Align set"),
 557                 P_("Whether this tag affects the alignment mode"));
 558
 559   /**
 560    * GtkCellRendererText::edited
 561    * @renderer: the object which received the signal.
 562    * @path: the path identifying the edited cell.
 563    * @new_text: the new text.
 564    *
 565    * This signal is emitted after @renderer has been edited.
 566    */
 567   text_cell_renderer_signals [EDITED] =
 568     g_signal_new (I_("edited"),
 569                   G_OBJECT_CLASS_TYPE (object_class),
 570                   G_SIGNAL_RUN_LAST,
 571                   G_STRUCT_OFFSET (GtkCellRendererTextClass, edited),
 572                   NULL, NULL,
 573                   _gtk_marshal_VOID__STRING_STRING,
 574                   G_TYPE_NONE, 2,
 575                   G_TYPE_STRING,
 576                   G_TYPE_STRING);
 577
 578   g_type_class_add_private (object_class, sizeof (GtkCellRendererTextPrivate));
 579 }
 580
 581 static void
 582 gtk_cell_renderer_text_finalize (GObject *object)
 583 {
 584   GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (object);
 585   GtkCellRendererTextPrivate *priv;
 586
 587   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (object);
 588
 589   pango_font_description_free (celltext->font);
 590
 591   if (celltext->text)
 592     g_free (celltext->text);
 593
 594   if (celltext->extra_attrs)
 595     pango_attr_list_unref (celltext->extra_attrs);
 596
 597   if (priv->language)
 598     g_object_unref (priv->language);
 599
 600   (* G_OBJECT_CLASS (gtk_cell_renderer_text_parent_class)->finalize) (object);
 601 }
 602
 603 static PangoFontMask
 604 get_property_font_set_mask (guint prop_id)
 605 {
 606   switch (prop_id)
 607     {
 608     case PROP_FAMILY_SET:
 609       return PANGO_FONT_MASK_FAMILY;
 610     case PROP_STYLE_SET:
 611       return PANGO_FONT_MASK_STYLE;
 612     case PROP_VARIANT_SET:
 613       return PANGO_FONT_MASK_VARIANT;
 614     case PROP_WEIGHT_SET:
 615       return PANGO_FONT_MASK_WEIGHT;
 616     case PROP_STRETCH_SET:
 617       return PANGO_FONT_MASK_STRETCH;
 618     case PROP_SIZE_SET:
 619       return PANGO_FONT_MASK_SIZE;
 620     }
 621
 622   return 0;
 623 }
 624
 625 static void
 626 gtk_cell_renderer_text_get_property (GObject        *object,
 627                                      guint           param_id,
 628                                      GValue         *value,
 629                                      GParamSpec     *pspec)
 630 {
 631   GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (object);
 632   GtkCellRendererTextPrivate *priv;
 633
 634   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (object);
 635
 636   switch (param_id)
 637     {
 638     case PROP_TEXT:
 639       g_value_set_string (value, celltext->text);
 640       break;
 641
 642     case PROP_ATTRIBUTES:
 643       g_value_set_boxed (value, celltext->extra_attrs);
 644       break;
 645
 646     case PROP_SINGLE_PARAGRAPH_MODE:
 647       g_value_set_boolean (value, priv->single_paragraph);
 648       break;
 649
 650     case PROP_BACKGROUND_GDK:
 651       {
 652         GdkColor color;
 653
 654         color.red = celltext->background.red;
 655         color.green = celltext->background.green;
 656         color.blue = celltext->background.blue;
 657
 658         g_value_set_boxed (value, &color);
 659       }
 660       break;
 661
 662     case PROP_FOREGROUND_GDK:
 663       {
 664         GdkColor color;
 665
 666         color.red = celltext->foreground.red;
 667         color.green = celltext->foreground.green;
 668         color.blue = celltext->foreground.blue;
 669
 670         g_value_set_boxed (value, &color);
 671       }
 672       break;
 673
 674     case PROP_FONT:
 675         g_value_take_string (value, pango_font_description_to_string (celltext->font));
 676       break;
 677
 678     case PROP_FONT_DESC:
 679       g_value_set_boxed (value, celltext->font);
 680       break;
 681
 682     case PROP_FAMILY:
 683       g_value_set_string (value, pango_font_description_get_family (celltext->font));
 684       break;
 685
 686     case PROP_STYLE:
 687       g_value_set_enum (value, pango_font_description_get_style (celltext->font));
 688       break;
 689
 690     case PROP_VARIANT:
 691       g_value_set_enum (value, pango_font_description_get_variant (celltext->font));
 692       break;
 693
 694     case PROP_WEIGHT:
 695       g_value_set_int (value, pango_font_description_get_weight (celltext->font));
 696       break;
 697
 698     case PROP_STRETCH:
 699       g_value_set_enum (value, pango_font_description_get_stretch (celltext->font));
 700       break;
 701
 702     case PROP_SIZE:
 703       g_value_set_int (value, pango_font_description_get_size (celltext->font));
 704       break;
 705
 706     case PROP_SIZE_POINTS:
 707       g_value_set_double (value, ((double)pango_font_description_get_size (celltext->font)) / (double)PANGO_SCALE);
 708       break;
 709
 710     case PROP_SCALE:
 711       g_value_set_double (value, celltext->font_scale);
 712       break;
 713
 714     case PROP_EDITABLE:
 715       g_value_set_boolean (value, celltext->editable);
 716       break;
 717
 718     case PROP_STRIKETHROUGH:
 719       g_value_set_boolean (value, celltext->strikethrough);
 720       break;
 721
 722     case PROP_UNDERLINE:
 723       g_value_set_enum (value, celltext->underline_style);
 724       break;
 725
 726     case PROP_RISE:
 727       g_value_set_int (value, celltext->rise);
 728       break;
 729
 730     case PROP_LANGUAGE:
 731       g_value_set_string (value, pango_language_to_string (priv->language));
 732       break;
 733
 734     case PROP_ELLIPSIZE:
 735       g_value_set_enum (value, priv->ellipsize);
 736       break;
 737
 738     case PROP_WRAP_MODE:
 739       g_value_set_enum (value, priv->wrap_mode);
 740       break;
 741
 742     case PROP_WRAP_WIDTH:
 743       g_value_set_int (value, priv->wrap_width);
 744       break;
 745
 746     case PROP_ALIGN:
 747       g_value_set_enum (value, priv->align);
 748       break;
 749
 750     case PROP_BACKGROUND_SET:
 751       g_value_set_boolean (value, celltext->background_set);
 752       break;
 753
 754     case PROP_FOREGROUND_SET:
 755       g_value_set_boolean (value, celltext->foreground_set);
 756       break;
 757
 758     case PROP_FAMILY_SET:
 759     case PROP_STYLE_SET:
 760     case PROP_VARIANT_SET:
 761     case PROP_WEIGHT_SET:
 762     case PROP_STRETCH_SET:
 763     case PROP_SIZE_SET:
 764       {
 765         PangoFontMask mask = get_property_font_set_mask (param_id);
 766         g_value_set_boolean (value, (pango_font_description_get_set_fields (celltext->font) & mask) != 0);
 767
 768         break;
 769       }
 770
 771     case PROP_SCALE_SET:
 772       g_value_set_boolean (value, celltext->scale_set);
 773       break;
 774
 775     case PROP_EDITABLE_SET:
 776       g_value_set_boolean (value, celltext->editable_set);
 777       break;
 778
 779     case PROP_STRIKETHROUGH_SET:
 780       g_value_set_boolean (value, celltext->strikethrough_set);
 781       break;
 782
 783     case PROP_UNDERLINE_SET:
 784       g_value_set_boolean (value, celltext->underline_set);
 785       break;
 786
 787     case  PROP_RISE_SET:
 788       g_value_set_boolean (value, celltext->rise_set);
 789       break;
 790
 791     case PROP_LANGUAGE_SET:
 792       g_value_set_boolean (value, priv->language_set);
 793       break;
 794
 795     case PROP_ELLIPSIZE_SET:
 796       g_value_set_boolean (value, priv->ellipsize_set);
 797       break;
 798
 799     case PROP_ALIGN_SET:
 800       g_value_set_boolean (value, priv->align_set);
 801       break;
 802
 803     case PROP_WIDTH_CHARS:
 804       g_value_set_int (value, priv->width_chars);
 805       break;
 806
 807     case PROP_BACKGROUND:
 808     case PROP_FOREGROUND:
 809     case PROP_MARKUP:
 810     default:
 811       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 812       break;
 813     }
 814 }
 815
 816
 817 static void
 818 set_bg_color (GtkCellRendererText *celltext,
 819               GdkColor            *color)
 820 {
 821   if (color)
 822     {
 823       if (!celltext->background_set)
 824         {
 825           celltext->background_set = TRUE;
 826           g_object_notify (G_OBJECT (celltext), "background-set");
 827         }
 828
 829       celltext->background.red = color->red;
 830       celltext->background.green = color->green;
 831       celltext->background.blue = color->blue;
 832     }
 833   else
 834     {
 835       if (celltext->background_set)
 836         {
 837           celltext->background_set = FALSE;
 838           g_object_notify (G_OBJECT (celltext), "background-set");
 839         }
 840     }
 841 }
 842
 843
 844 static void
 845 set_fg_color (GtkCellRendererText *celltext,
 846               GdkColor            *color)
 847 {
 848   if (color)
 849     {
 850       if (!celltext->foreground_set)
 851         {
 852           celltext->foreground_set = TRUE;
 853           g_object_notify (G_OBJECT (celltext), "foreground-set");
 854         }
 855
 856       celltext->foreground.red = color->red;
 857       celltext->foreground.green = color->green;
 858       celltext->foreground.blue = color->blue;
 859     }
 860   else
 861     {
 862       if (celltext->foreground_set)
 863         {
 864           celltext->foreground_set = FALSE;
 865           g_object_notify (G_OBJECT (celltext), "foreground-set");
 866         }
 867     }
 868 }
 869
 870 static PangoFontMask
 871 set_font_desc_fields (PangoFontDescription *desc,
 872                       PangoFontMask         to_set)
 873 {
 874   PangoFontMask changed_mask = 0;
 875
 876   if (to_set & PANGO_FONT_MASK_FAMILY)
 877     {
 878       const char *family = pango_font_description_get_family (desc);
 879       if (!family)
 880         {
 881           family = "sans";
 882           changed_mask |= PANGO_FONT_MASK_FAMILY;
 883         }
 884
 885       pango_font_description_set_family (desc, family);
 886     }
 887   if (to_set & PANGO_FONT_MASK_STYLE)
 888     pango_font_description_set_style (desc, pango_font_description_get_style (desc));
 889   if (to_set & PANGO_FONT_MASK_VARIANT)
 890     pango_font_description_set_variant (desc, pango_font_description_get_variant (desc));
 891   if (to_set & PANGO_FONT_MASK_WEIGHT)
 892     pango_font_description_set_weight (desc, pango_font_description_get_weight (desc));
 893   if (to_set & PANGO_FONT_MASK_STRETCH)
 894     pango_font_description_set_stretch (desc, pango_font_description_get_stretch (desc));
 895   if (to_set & PANGO_FONT_MASK_SIZE)
 896     {
 897       gint size = pango_font_description_get_size (desc);
 898       if (size <= 0)
 899         {
 900           size = 10 * PANGO_SCALE;
 901           changed_mask |= PANGO_FONT_MASK_SIZE;
 902         }
 903
 904       pango_font_description_set_size (desc, size);
 905     }
 906
 907   return changed_mask;
 908 }
 909
 910 static void
 911 notify_set_changed (GObject       *object,
 912                     PangoFontMask  changed_mask)
 913 {
 914   if (changed_mask & PANGO_FONT_MASK_FAMILY)
 915     g_object_notify (object, "family-set");
 916   if (changed_mask & PANGO_FONT_MASK_STYLE)
 917     g_object_notify (object, "style-set");
 918   if (changed_mask & PANGO_FONT_MASK_VARIANT)
 919     g_object_notify (object, "variant-set");
 920   if (changed_mask & PANGO_FONT_MASK_WEIGHT)
 921     g_object_notify (object, "weight-set");
 922   if (changed_mask & PANGO_FONT_MASK_STRETCH)
 923     g_object_notify (object, "stretch-set");
 924   if (changed_mask & PANGO_FONT_MASK_SIZE)
 925     g_object_notify (object, "size-set");
 926 }
 927
 928 static void
 929 notify_fields_changed (GObject       *object,
 930                        PangoFontMask  changed_mask)
 931 {
 932   if (changed_mask & PANGO_FONT_MASK_FAMILY)
 933     g_object_notify (object, "family");
 934   if (changed_mask & PANGO_FONT_MASK_STYLE)
 935     g_object_notify (object, "style");
 936   if (changed_mask & PANGO_FONT_MASK_VARIANT)
 937     g_object_notify (object, "variant");
 938   if (changed_mask & PANGO_FONT_MASK_WEIGHT)
 939     g_object_notify (object, "weight");
 940   if (changed_mask & PANGO_FONT_MASK_STRETCH)
 941     g_object_notify (object, "stretch");
 942   if (changed_mask & PANGO_FONT_MASK_SIZE)
 943     g_object_notify (object, "size");
 944 }
 945
 946 static void
 947 set_font_description (GtkCellRendererText  *celltext,
 948                       PangoFontDescription *font_desc)
 949 {
 950   GObject *object = G_OBJECT (celltext);
 951   PangoFontDescription *new_font_desc;
 952   PangoFontMask old_mask, new_mask, changed_mask, set_changed_mask;
 953
 954   if (font_desc)
 955     new_font_desc = pango_font_description_copy (font_desc);
 956   else
 957     new_font_desc = pango_font_description_new ();
 958
 959   old_mask = pango_font_description_get_set_fields (celltext->font);
 960   new_mask = pango_font_description_get_set_fields (new_font_desc);
 961
 962   changed_mask = old_mask | new_mask;
 963   set_changed_mask = old_mask ^ new_mask;
 964
 965   pango_font_description_free (celltext->font);
 966   celltext->font = new_font_desc;
 967
 968   g_object_freeze_notify (object);
 969
 970   g_object_notify (object, "font-desc");
 971   g_object_notify (object, "font");
 972
 973   if (changed_mask & PANGO_FONT_MASK_FAMILY)
 974     g_object_notify (object, "family");
 975   if (changed_mask & PANGO_FONT_MASK_STYLE)
 976     g_object_notify (object, "style");
 977   if (changed_mask & PANGO_FONT_MASK_VARIANT)
 978     g_object_notify (object, "variant");
 979   if (changed_mask & PANGO_FONT_MASK_WEIGHT)
 980     g_object_notify (object, "weight");
 981   if (changed_mask & PANGO_FONT_MASK_STRETCH)
 982     g_object_notify (object, "stretch");
 983   if (changed_mask & PANGO_FONT_MASK_SIZE)
 984     {
 985       g_object_notify (object, "size");
 986       g_object_notify (object, "size-points");
 987     }
 988
 989   notify_set_changed (object, set_changed_mask);
 990
 991   g_object_thaw_notify (object);
 992 }
 993
 994 static void
 995 gtk_cell_renderer_text_set_property (GObject      *object,
 996                                      guint         param_id,
 997                                      const GValue *value,
 998                                      GParamSpec   *pspec)
 999 {
1000   GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (object);
1001   GtkCellRendererTextPrivate *priv;
1002
1003   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (object);
1004
1005   switch (param_id)
1006     {
1007     case PROP_TEXT:
1008       if (celltext->text)
1009         g_free (celltext->text);
1010
1011       if (priv->markup_set)
1012         {
1013           if (celltext->extra_attrs)
1014             pango_attr_list_unref (celltext->extra_attrs);
1015           celltext->extra_attrs = NULL;
1016           priv->markup_set = FALSE;
1017         }
1018
1019       celltext->text = g_strdup (g_value_get_string (value));
1020       g_object_notify (object, "text");
1021       break;
1022
1023     case PROP_ATTRIBUTES:
1024       if (celltext->extra_attrs)
1025         pango_attr_list_unref (celltext->extra_attrs);
1026
1027       celltext->extra_attrs = g_value_get_boxed (value);
1028       if (celltext->extra_attrs)
1029         pango_attr_list_ref (celltext->extra_attrs);
1030       break;
1031     case PROP_MARKUP:
1032       {
1033         const gchar *str;
1034         gchar *text = NULL;
1035         GError *error = NULL;
1036         PangoAttrList *attrs = NULL;
1037
1038         str = g_value_get_string (value);
1039         if (str && !pango_parse_markup (str,
1040                                         -1,
1041                                         0,
1042                                         &attrs,
1043                                         &text,
1044                                         NULL,
1045                                         &error))
1046           {
1047             g_warning ("Failed to set text from markup due to error parsing markup: %s",
1048                        error->message);
1049             g_error_free (error);
1050             return;
1051           }
1052
1053         if (celltext->text)
1054           g_free (celltext->text);
1055
1056         if (celltext->extra_attrs)
1057           pango_attr_list_unref (celltext->extra_attrs);
1058
1059         celltext->text = text;
1060         celltext->extra_attrs = attrs;
1061         priv->markup_set = TRUE;
1062       }
1063       break;
1064
1065     case PROP_SINGLE_PARAGRAPH_MODE:
1066       priv->single_paragraph = g_value_get_boolean (value);
1067       break;
1068
1069     case PROP_BACKGROUND:
1070       {
1071         GdkColor color;
1072
1073         if (!g_value_get_string (value))
1074           set_bg_color (celltext, NULL);       /* reset to backgrounmd_set to FALSE */
1075         else if (gdk_color_parse (g_value_get_string (value), &color))
1076           set_bg_color (celltext, &color);
1077         else
1078           g_warning ("Don't know color `%s'", g_value_get_string (value));
1079
1080         g_object_notify (object, "background-gdk");
1081       }
1082       break;
1083
1084     case PROP_FOREGROUND:
1085       {
1086         GdkColor color;
1087
1088         if (!g_value_get_string (value))
1089           set_fg_color (celltext, NULL);       /* reset to foreground_set to FALSE */
1090         else if (gdk_color_parse (g_value_get_string (value), &color))
1091           set_fg_color (celltext, &color);
1092         else
1093           g_warning ("Don't know color `%s'", g_value_get_string (value));
1094
1095         g_object_notify (object, "foreground-gdk");
1096       }
1097       break;
1098
1099     case PROP_BACKGROUND_GDK:
1100       /* This notifies the GObject itself. */
1101       set_bg_color (celltext, g_value_get_boxed (value));
1102       break;
1103
1104     case PROP_FOREGROUND_GDK:
1105       /* This notifies the GObject itself. */
1106       set_fg_color (celltext, g_value_get_boxed (value));
1107       break;
1108
1109     case PROP_FONT:
1110       {
1111         PangoFontDescription *font_desc = NULL;
1112         const gchar *name;
1113
1114         name = g_value_get_string (value);
1115
1116         if (name)
1117           font_desc = pango_font_description_from_string (name);
1118
1119         set_font_description (celltext, font_desc);
1120
1121         pango_font_description_free (font_desc);
1122
1123         if (celltext->fixed_height_rows != -1)
1124           celltext->calc_fixed_height = TRUE;
1125       }
1126       break;
1127
1128     case PROP_FONT_DESC:
1129       set_font_description (celltext, g_value_get_boxed (value));
1130
1131       if (celltext->fixed_height_rows != -1)
1132         celltext->calc_fixed_height = TRUE;
1133       break;
1134
1135     case PROP_FAMILY:
1136     case PROP_STYLE:
1137     case PROP_VARIANT:
1138     case PROP_WEIGHT:
1139     case PROP_STRETCH:
1140     case PROP_SIZE:
1141     case PROP_SIZE_POINTS:
1142       {
1143         PangoFontMask old_set_mask = pango_font_description_get_set_fields (celltext->font);
1144
1145         switch (param_id)
1146           {
1147           case PROP_FAMILY:
1148             pango_font_description_set_family (celltext->font,
1149                                                g_value_get_string (value));
1150             break;
1151           case PROP_STYLE:
1152             pango_font_description_set_style (celltext->font,
1153                                               g_value_get_enum (value));
1154             break;
1155           case PROP_VARIANT:
1156             pango_font_description_set_variant (celltext->font,
1157                                                 g_value_get_enum (value));
1158             break;
1159           case PROP_WEIGHT:
1160             pango_font_description_set_weight (celltext->font,
1161                                                g_value_get_int (value));
1162             break;
1163           case PROP_STRETCH:
1164             pango_font_description_set_stretch (celltext->font,
1165                                                 g_value_get_enum (value));
1166             break;
1167           case PROP_SIZE:
1168             pango_font_description_set_size (celltext->font,
1169                                              g_value_get_int (value));
1170             g_object_notify (object, "size-points");
1171             break;
1172           case PROP_SIZE_POINTS:
1173             pango_font_description_set_size (celltext->font,
1174                                              g_value_get_double (value) * PANGO_SCALE);
1175             g_object_notify (object, "size");
1176             break;
1177           }
1178
1179         if (celltext->fixed_height_rows != -1)
1180           celltext->calc_fixed_height = TRUE;
1181
1182         notify_set_changed (object, old_set_mask & pango_font_description_get_set_fields (celltext->font));
1183         g_object_notify (object, "font-desc");
1184         g_object_notify (object, "font");
1185
1186         break;
1187       }
1188
1189     case PROP_SCALE:
1190       celltext->font_scale = g_value_get_double (value);
1191       celltext->scale_set = TRUE;
1192       if (celltext->fixed_height_rows != -1)
1193         celltext->calc_fixed_height = TRUE;
1194       g_object_notify (object, "scale-set");
1195       break;
1196
1197     case PROP_EDITABLE:
1198       celltext->editable = g_value_get_boolean (value);
1199       celltext->editable_set = TRUE;
1200       if (celltext->editable)
1201         GTK_CELL_RENDERER (celltext)->mode = GTK_CELL_RENDERER_MODE_EDITABLE;
1202       else
1203         GTK_CELL_RENDERER (celltext)->mode = GTK_CELL_RENDERER_MODE_INERT;
1204       g_object_notify (object, "editable-set");
1205       break;
1206
1207     case PROP_STRIKETHROUGH:
1208       celltext->strikethrough = g_value_get_boolean (value);
1209       celltext->strikethrough_set = TRUE;
1210       g_object_notify (object, "strikethrough-set");
1211       break;
1212
1213     case PROP_UNDERLINE:
1214       celltext->underline_style = g_value_get_enum (value);
1215       celltext->underline_set = TRUE;
1216       g_object_notify (object, "underline-set");
1217
1218       break;
1219
1220     case PROP_RISE:
1221       celltext->rise = g_value_get_int (value);
1222       celltext->rise_set = TRUE;
1223       g_object_notify (object, "rise-set");
1224       if (celltext->fixed_height_rows != -1)
1225         celltext->calc_fixed_height = TRUE;
1226       break;
1227
1228     case PROP_LANGUAGE:
1229       priv->language_set = TRUE;
1230       if (priv->language)
1231         g_object_unref (priv->language);
1232       priv->language = pango_language_from_string (g_value_get_string (value));
1233       g_object_notify (object, "language-set");
1234       break;
1235
1236     case PROP_ELLIPSIZE:
1237       priv->ellipsize = g_value_get_enum (value);
1238       priv->ellipsize_set = TRUE;
1239       g_object_notify (object, "ellipsize-set");
1240       break;
1241
1242     case PROP_WRAP_MODE:
1243       priv->wrap_mode = g_value_get_enum (value);
1244       break;
1245
1246     case PROP_WRAP_WIDTH:
1247       priv->wrap_width = g_value_get_int (value);
1248       break;
1249
1250     case PROP_WIDTH_CHARS:
1251       priv->width_chars = g_value_get_int (value);
1252       break;
1253
1254     case PROP_ALIGN:
1255       priv->align = g_value_get_enum (value);
1256       priv->align_set = TRUE;
1257       g_object_notify (object, "align-set");
1258       break;
1259
1260     case PROP_BACKGROUND_SET:
1261       celltext->background_set = g_value_get_boolean (value);
1262       break;
1263
1264     case PROP_FOREGROUND_SET:
1265       celltext->foreground_set = g_value_get_boolean (value);
1266       break;
1267
1268     case PROP_FAMILY_SET:
1269     case PROP_STYLE_SET:
1270     case PROP_VARIANT_SET:
1271     case PROP_WEIGHT_SET:
1272     case PROP_STRETCH_SET:
1273     case PROP_SIZE_SET:
1274       if (!g_value_get_boolean (value))
1275         {
1276           pango_font_description_unset_fields (celltext->font,
1277                                                get_property_font_set_mask (param_id));
1278         }
1279       else
1280         {
1281           PangoFontMask changed_mask;
1282
1283           changed_mask = set_font_desc_fields (celltext->font,
1284                                                get_property_font_set_mask (param_id));
1285           notify_fields_changed (G_OBJECT (celltext), changed_mask);
1286         }
1287       break;
1288
1289     case PROP_SCALE_SET:
1290       celltext->scale_set = g_value_get_boolean (value);
1291       break;
1292
1293     case PROP_EDITABLE_SET:
1294       celltext->editable_set = g_value_get_boolean (value);
1295       break;
1296
1297     case PROP_STRIKETHROUGH_SET:
1298       celltext->strikethrough_set = g_value_get_boolean (value);
1299       break;
1300
1301     case PROP_UNDERLINE_SET:
1302       celltext->underline_set = g_value_get_boolean (value);
1303       break;
1304
1305     case PROP_RISE_SET:
1306       celltext->rise_set = g_value_get_boolean (value);
1307       break;
1308
1309     case PROP_LANGUAGE_SET:
1310       priv->language_set = g_value_get_boolean (value);
1311       break;
1312
1313     case PROP_ELLIPSIZE_SET:
1314       priv->ellipsize_set = g_value_get_boolean (value);
1315       break;
1316
1317     case PROP_ALIGN_SET:
1318       priv->align_set = g_value_get_boolean (value);
1319       break;
1320
1321     default:
1322       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
1323       break;
1324     }
1325 }
1326
1327 /**
1328  * gtk_cell_renderer_text_new:
1329  *
1330  * Creates a new #GtkCellRendererText. Adjust how text is drawn using
1331  * object properties. Object properties can be
1332  * set globally (with g_object_set()). Also, with #GtkTreeViewColumn,
1333  * you can bind a property to a value in a #GtkTreeModel. For example,
1334  * you can bind the "text" property on the cell renderer to a string
1335  * value in the model, thus rendering a different string in each row
1336  * of the #GtkTreeView
1337  *
1338  * Return value: the new cell renderer
1339  **/
1340 GtkCellRenderer *
1341 gtk_cell_renderer_text_new (void)
1342 {
1343   return g_object_new (GTK_TYPE_CELL_RENDERER_TEXT, NULL);
1344 }
1345
1346 static void
1347 add_attr (PangoAttrList  *attr_list,
1348           PangoAttribute *attr)
1349 {
1350   attr->start_index = 0;
1351   attr->end_index = G_MAXINT;
1352
1353   pango_attr_list_insert (attr_list, attr);
1354 }
1355
1356 static PangoLayout*
1357 get_layout (GtkCellRendererText *celltext,
1358             GtkWidget           *widget,
1359             gboolean             will_render,
1360             GtkCellRendererState flags)
1361 {
1362   PangoAttrList *attr_list;
1363   PangoLayout *layout;
1364   PangoUnderline uline;
1365   GtkCellRendererTextPrivate *priv;
1366
1367   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (celltext);
1368
1369   layout = gtk_widget_create_pango_layout (widget, celltext->text);
1370
1371   if (celltext->extra_attrs)
1372     attr_list = pango_attr_list_copy (celltext->extra_attrs);
1373   else
1374     attr_list = pango_attr_list_new ();
1375
1376   pango_layout_set_single_paragraph_mode (layout, priv->single_paragraph);
1377
1378   if (will_render)
1379     {
1380       /* Add options that affect appearance but not size */
1381
1382       /* note that background doesn't go here, since it affects
1383        * background_area not the PangoLayout area
1384        */
1385
1386       if (celltext->foreground_set
1387           && (flags & GTK_CELL_RENDERER_SELECTED) == 0)
1388         {
1389           PangoColor color;
1390
1391           color = celltext->foreground;
1392
1393           add_attr (attr_list,
1394                     pango_attr_foreground_new (color.red, color.green, color.blue));
1395         }
1396
1397       if (celltext->strikethrough_set)
1398         add_attr (attr_list,
1399                   pango_attr_strikethrough_new (celltext->strikethrough));
1400     }
1401
1402   add_attr (attr_list, pango_attr_font_desc_new (celltext->font));
1403
1404   if (celltext->scale_set &&
1405       celltext->font_scale != 1.0)
1406     add_attr (attr_list, pango_attr_scale_new (celltext->font_scale));
1407
1408   if (celltext->underline_set)
1409     uline = celltext->underline_style;
1410   else
1411     uline = PANGO_UNDERLINE_NONE;
1412
1413   if (priv->language_set)
1414     add_attr (attr_list, pango_attr_language_new (priv->language));
1415
1416   if ((flags & GTK_CELL_RENDERER_PRELIT) == GTK_CELL_RENDERER_PRELIT)
1417     {
1418       switch (uline)
1419         {
1420         case PANGO_UNDERLINE_NONE:
1421           uline = PANGO_UNDERLINE_SINGLE;
1422           break;
1423
1424         case PANGO_UNDERLINE_SINGLE:
1425           uline = PANGO_UNDERLINE_DOUBLE;
1426           break;
1427
1428         default:
1429           break;
1430         }
1431     }
1432
1433   if (uline != PANGO_UNDERLINE_NONE)
1434     add_attr (attr_list, pango_attr_underline_new (celltext->underline_style));
1435
1436   if (celltext->rise_set)
1437     add_attr (attr_list, pango_attr_rise_new (celltext->rise));
1438
1439   if (priv->ellipsize_set)
1440     pango_layout_set_ellipsize (layout, priv->ellipsize);
1441   else
1442     pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_NONE);
1443
1444   if (priv->wrap_width != -1)
1445     {
1446       pango_layout_set_width (layout, priv->wrap_width * PANGO_SCALE);
1447       pango_layout_set_wrap (layout, priv->wrap_mode);
1448
1449       if (pango_layout_get_line_count (layout) == 1)
1450         {
1451           pango_layout_set_width (layout, -1);
1452           pango_layout_set_wrap (layout, PANGO_WRAP_CHAR);
1453         }
1454     }
1455   else
1456     {
1457       pango_layout_set_width (layout, -1);
1458       pango_layout_set_wrap (layout, PANGO_WRAP_CHAR);
1459     }
1460
1461   if (priv->align_set)
1462     pango_layout_set_alignment (layout, priv->align);
1463   else
1464     {
1465       PangoAlignment align;
1466
1467       if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
1468         align = PANGO_ALIGN_RIGHT;
1469       else
1470         align = PANGO_ALIGN_LEFT;
1471
1472       pango_layout_set_alignment (layout, align);
1473     }
1474
1475   pango_layout_set_attributes (layout, attr_list);
1476
1477   pango_attr_list_unref (attr_list);
1478
1479   return layout;
1480 }
1481
1482 static void
1483 get_size (GtkCellRenderer *cell,
1484           GtkWidget       *widget,
1485           GdkRectangle    *cell_area,
1486           PangoLayout     *layout,
1487           gint            *x_offset,
1488           gint            *y_offset,
1489           gint            *width,
1490           gint            *height)
1491 {
1492   GtkCellRendererText *celltext = (GtkCellRendererText *) cell;
1493   PangoRectangle rect;
1494   GtkCellRendererTextPrivate *priv;
1495
1496   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (cell);
1497
1498   if (celltext->calc_fixed_height)
1499     {
1500       PangoContext *context;
1501       PangoFontMetrics *metrics;
1502       PangoFontDescription *font_desc;
1503       gint row_height;
1504
1505       font_desc = pango_font_description_copy_static (widget->style->font_desc);
1506       pango_font_description_merge_static (font_desc, celltext->font, TRUE);
1507
1508       if (celltext->scale_set)
1509         pango_font_description_set_size (font_desc,
1510                                          celltext->font_scale * pango_font_description_get_size (font_desc));
1511
1512       context = gtk_widget_get_pango_context (widget);
1513
1514       metrics = pango_context_get_metrics (context,
1515                                            font_desc,
1516                                            pango_context_get_language (context));
1517       row_height = (pango_font_metrics_get_ascent (metrics) +
1518                     pango_font_metrics_get_descent (metrics));
1519       pango_font_metrics_unref (metrics);
1520
1521       pango_font_description_free (font_desc);
1522
1523       gtk_cell_renderer_set_fixed_size (cell,
1524                                         cell->width, 2*cell->ypad +
1525                                         celltext->fixed_height_rows * PANGO_PIXELS (row_height));
1526
1527       if (height)
1528         {
1529           *height = cell->height;
1530           height = NULL;
1531         }
1532       celltext->calc_fixed_height = FALSE;
1533       if (width == NULL)
1534         return;
1535     }
1536
1537   if (layout)
1538     g_object_ref (layout);
1539   else
1540     layout = get_layout (celltext, widget, FALSE, 0);
1541
1542   pango_layout_get_pixel_extents (layout, NULL, &rect);
1543
1544   if (height)
1545     *height = cell->ypad * 2 + rect.height;
1546
1547   /* The minimum size for ellipsized labels is ~ 3 chars */
1548   if (width)
1549     {
1550       if (priv->ellipsize || priv->width_chars > 0)
1551         {
1552           PangoContext *context;
1553           PangoFontMetrics *metrics;
1554           gint char_width;
1555
1556           context = pango_layout_get_context (layout);
1557           metrics = pango_context_get_metrics (context, widget->style->font_desc, pango_context_get_language (context));
1558
1559           char_width = pango_font_metrics_get_approximate_char_width (metrics);
1560           pango_font_metrics_unref (metrics);
1561
1562           *width = cell->xpad * 2 + (PANGO_PIXELS (char_width) * MAX (priv->width_chars, 3));
1563         }
1564       else
1565         {
1566           *width = cell->xpad * 2 + rect.x + rect.width;
1567         }
1568     }
1569
1570   if (cell_area)
1571     {
1572       if (x_offset)
1573         {
1574           if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
1575             *x_offset = (1.0 - cell->xalign) * (cell_area->width - (rect.x + rect.width + (2 * cell->xpad)));
1576           else
1577             *x_offset = cell->xalign * (cell_area->width - (rect.x + rect.width + (2 * cell->xpad)));
1578
1579           if ((priv->ellipsize_set && priv->ellipsize != PANGO_ELLIPSIZE_NONE) || priv->wrap_width != -1)
1580             *x_offset = MAX(*x_offset, 0);
1581         }
1582       if (y_offset)
1583         {
1584           *y_offset = cell->yalign * (cell_area->height - (rect.height + (2 * cell->ypad)));
1585           *y_offset = MAX (*y_offset, 0);
1586         }
1587     }
1588   else
1589     {
1590       if (x_offset) *x_offset = 0;
1591       if (y_offset) *y_offset = 0;
1592     }
1593
1594   g_object_unref (layout);
1595 }
1596
1597
1598 static void
1599 gtk_cell_renderer_text_get_size (GtkCellRenderer *cell,
1600                                  GtkWidget       *widget,
1601                                  GdkRectangle    *cell_area,
1602                                  gint            *x_offset,
1603                                  gint            *y_offset,
1604                                  gint            *width,
1605                                  gint            *height)
1606 {
1607   get_size (cell, widget, cell_area, NULL,
1608             x_offset, y_offset, width, height);
1609 }
1610
1611 static void
1612 gtk_cell_renderer_text_render (GtkCellRenderer      *cell,
1613                                GdkDrawable          *window,
1614                                GtkWidget            *widget,
1615                                GdkRectangle         *background_area,
1616                                GdkRectangle         *cell_area,
1617                                GdkRectangle         *expose_area,
1618                                GtkCellRendererState  flags)
1619
1620 {
1621   GtkCellRendererText *celltext = (GtkCellRendererText *) cell;
1622   PangoLayout *layout;
1623   GtkStateType state;
1624   gint x_offset;
1625   gint y_offset;
1626   GtkCellRendererTextPrivate *priv;
1627
1628   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (cell);
1629
1630   layout = get_layout (celltext, widget, TRUE, flags);
1631   get_size (cell, widget, cell_area, layout, &x_offset, &y_offset, NULL, NULL);
1632
1633   if (!cell->sensitive)
1634     {
1635       state = GTK_STATE_INSENSITIVE;
1636     }
1637   else if ((flags & GTK_CELL_RENDERER_SELECTED) == GTK_CELL_RENDERER_SELECTED)
1638     {
1639       if (GTK_WIDGET_HAS_FOCUS (widget))
1640         state = GTK_STATE_SELECTED;
1641       else
1642         state = GTK_STATE_ACTIVE;
1643     }
1644   else if ((flags & GTK_CELL_RENDERER_PRELIT) == GTK_CELL_RENDERER_PRELIT &&
1645            GTK_WIDGET_STATE (widget) == GTK_STATE_PRELIGHT)
1646     {
1647       state = GTK_STATE_PRELIGHT;
1648     }
1649   else
1650     {
1651       if (GTK_WIDGET_STATE (widget) == GTK_STATE_INSENSITIVE)
1652         state = GTK_STATE_INSENSITIVE;
1653       else
1654         state = GTK_STATE_NORMAL;
1655     }
1656
1657   if (celltext->background_set &&
1658       (flags & GTK_CELL_RENDERER_SELECTED) == 0)
1659     {
1660       cairo_t *cr = gdk_cairo_create (window);
1661
1662       if (expose_area)
1663         {
1664           gdk_cairo_rectangle (cr, expose_area);
1665           cairo_clip (cr);
1666         }
1667
1668       gdk_cairo_rectangle (cr, background_area);
1669       cairo_set_source_rgb (cr,
1670                             celltext->background.red / 65535.,
1671                             celltext->background.green / 65535.,
1672                             celltext->background.blue / 65535.);
1673       cairo_fill (cr);
1674
1675       cairo_destroy (cr);
1676     }
1677
1678   if (priv->ellipsize_set && priv->ellipsize != PANGO_ELLIPSIZE_NONE)
1679     pango_layout_set_width (layout,
1680                             (cell_area->width - x_offset - 2 * cell->xpad) * PANGO_SCALE);
1681   else if (priv->wrap_width == -1)
1682     pango_layout_set_width (layout, -1);
1683
1684   gtk_paint_layout (widget->style,
1685                     window,
1686                     state,
1687                     TRUE,
1688                     expose_area,
1689                     widget,
1690                     "cellrenderertext",
1691                     cell_area->x + x_offset + cell->xpad,
1692                     cell_area->y + y_offset + cell->ypad,
1693                     layout);
1694
1695   g_object_unref (layout);
1696 }
1697
1698 static void
1699 gtk_cell_renderer_text_editing_done (GtkCellEditable *entry,
1700                                      gpointer         data)
1701 {
1702   const gchar *path;
1703   const gchar *new_text;
1704   GtkCellRendererTextPrivate *priv;
1705
1706   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (data);
1707
1708   priv->entry = NULL;
1709
1710   if (priv->focus_out_id > 0)
1711     {
1712       g_signal_handler_disconnect (entry, priv->focus_out_id);
1713       priv->focus_out_id = 0;
1714     }
1715
1716   if (priv->populate_popup_id > 0)
1717     {
1718       g_signal_handler_disconnect (entry, priv->populate_popup_id);
1719       priv->populate_popup_id = 0;
1720     }
1721
1722   if (priv->entry_menu_popdown_timeout)
1723     {
1724       g_source_remove (priv->entry_menu_popdown_timeout);
1725       priv->entry_menu_popdown_timeout = 0;
1726     }
1727
1728   gtk_cell_renderer_stop_editing (GTK_CELL_RENDERER (data),
1729                                   GTK_ENTRY (entry)->editing_canceled);
1730   if (GTK_ENTRY (entry)->editing_canceled)
1731     return;
1732
1733   path = g_object_get_data (G_OBJECT (entry), GTK_CELL_RENDERER_TEXT_PATH);
1734   new_text = gtk_entry_get_text (GTK_ENTRY (entry));
1735
1736   g_signal_emit (data, text_cell_renderer_signals[EDITED], 0, path, new_text);
1737 }
1738
1739 static gboolean
1740 popdown_timeout (gpointer data)
1741 {
1742   GtkCellRendererTextPrivate *priv;
1743
1744   GDK_THREADS_ENTER ();
1745
1746   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (data);
1747
1748   priv->entry_menu_popdown_timeout = 0;
1749
1750   if (!GTK_WIDGET_HAS_FOCUS (priv->entry))
1751     gtk_cell_renderer_text_editing_done (GTK_CELL_EDITABLE (priv->entry), data);
1752
1753   GDK_THREADS_LEAVE ();
1754
1755   return FALSE;
1756 }
1757
1758 static void
1759 gtk_cell_renderer_text_popup_unmap (GtkMenu *menu,
1760                                     gpointer data)
1761 {
1762   GtkCellRendererTextPrivate *priv;
1763
1764   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (data);
1765
1766   priv->in_entry_menu = FALSE;
1767
1768   if (priv->entry_menu_popdown_timeout)
1769     return;
1770
1771   priv->entry_menu_popdown_timeout = g_timeout_add (500, popdown_timeout,
1772                                                     data);
1773 }
1774
1775 static void
1776 gtk_cell_renderer_text_populate_popup (GtkEntry *entry,
1777                                        GtkMenu  *menu,
1778                                        gpointer  data)
1779 {
1780   GtkCellRendererTextPrivate *priv;
1781
1782   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (data);
1783
1784   if (priv->entry_menu_popdown_timeout)
1785     {
1786       g_source_remove (priv->entry_menu_popdown_timeout);
1787       priv->entry_menu_popdown_timeout = 0;
1788     }
1789
1790   priv->in_entry_menu = TRUE;
1791
1792   g_signal_connect (menu, "unmap",
1793                     G_CALLBACK (gtk_cell_renderer_text_popup_unmap), data);
1794 }
1795
1796 static gboolean
1797 gtk_cell_renderer_text_focus_out_event (GtkWidget *entry,
1798                                         GdkEvent  *event,
1799                                         gpointer   data)
1800 {
1801   GtkCellRendererTextPrivate *priv;
1802
1803   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (data);
1804
1805   if (priv->in_entry_menu)
1806     return FALSE;
1807
1808   GTK_ENTRY (entry)->editing_canceled = TRUE;
1809   gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (entry));
1810   gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (entry));
1811
1812   /* entry needs focus-out-event */
1813   return FALSE;
1814 }
1815
1816 static GtkCellEditable *
1817 gtk_cell_renderer_text_start_editing (GtkCellRenderer      *cell,
1818                                       GdkEvent             *event,
1819                                       GtkWidget            *widget,
1820                                       const gchar          *path,
1821                                       GdkRectangle         *background_area,
1822                                       GdkRectangle         *cell_area,
1823                                       GtkCellRendererState  flags)
1824 {
1825   GtkRequisition requisition;
1826   GtkCellRendererText *celltext;
1827   GtkCellRendererTextPrivate *priv;
1828
1829   celltext = GTK_CELL_RENDERER_TEXT (cell);
1830   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (cell);
1831
1832   /* If the cell isn't editable we return NULL. */
1833   if (celltext->editable == FALSE)
1834     return NULL;
1835
1836   priv->entry = g_object_new (GTK_TYPE_ENTRY,
1837                               "has-frame", FALSE,
1838                               "xalign", cell->xalign,
1839                               NULL);
1840
1841   if (celltext->text)
1842     gtk_entry_set_text (GTK_ENTRY (priv->entry), celltext->text);
1843   g_object_set_data_full (G_OBJECT (priv->entry), I_(GTK_CELL_RENDERER_TEXT_PATH), g_strdup (path), g_free);
1844
1845   gtk_editable_select_region (GTK_EDITABLE (priv->entry), 0, -1);
1846
1847   gtk_widget_size_request (priv->entry, &requisition);
1848   if (requisition.height < cell_area->height)
1849     {
1850       GtkBorder *style_border;
1851       GtkBorder border;
1852
1853       gtk_widget_style_get (priv->entry,
1854                             "inner-border", &style_border,
1855                             NULL);
1856
1857       if (style_border)
1858         {
1859           border = *style_border;
1860           g_boxed_free (GTK_TYPE_BORDER, style_border);
1861         }
1862       else
1863         {
1864           /* Since boxed style properties can't have default values ... */
1865           border.left = 2;
1866           border.right = 2;
1867         }
1868
1869       border.top = (cell_area->height - requisition.height) / 2;
1870       border.bottom = (cell_area->height - requisition.height) / 2;
1871       gtk_entry_set_inner_border (GTK_ENTRY (priv->entry), &border);
1872     }
1873
1874   priv->in_entry_menu = FALSE;
1875   if (priv->entry_menu_popdown_timeout)
1876     {
1877       g_source_remove (priv->entry_menu_popdown_timeout);
1878       priv->entry_menu_popdown_timeout = 0;
1879     }
1880
1881   g_signal_connect (priv->entry,
1882                     "editing_done",
1883                     G_CALLBACK (gtk_cell_renderer_text_editing_done),
1884                     celltext);
1885   priv->focus_out_id = g_signal_connect_after (priv->entry, "focus_out_event",
1886                                                G_CALLBACK (gtk_cell_renderer_text_focus_out_event),
1887                                                celltext);
1888   priv->populate_popup_id =
1889     g_signal_connect (priv->entry, "populate_popup",
1890                       G_CALLBACK (gtk_cell_renderer_text_populate_popup),
1891                       celltext);
1892
1893   gtk_widget_show (priv->entry);
1894
1895   return GTK_CELL_EDITABLE (priv->entry);
1896 }
1897
1898 /**
1899  * gtk_cell_renderer_text_set_fixed_height_from_font:
1900  * @renderer: A #GtkCellRendererText
1901  * @number_of_rows: Number of rows of text each cell renderer is allocated, or -1
1902  *
1903  * Sets the height of a renderer to explicitly be determined by the "font" and
1904  * "y_pad" property set on it.  Further changes in these properties do not
1905  * affect the height, so they must be accompanied by a subsequent call to this
1906  * function.  Using this function is unflexible, and should really only be used
1907  * if calculating the size of a cell is too slow (ie, a massive number of cells
1908  * displayed).  If @number_of_rows is -1, then the fixed height is unset, and
1909  * the height is determined by the properties again.
1910  **/
1911 void
1912 gtk_cell_renderer_text_set_fixed_height_from_font (GtkCellRendererText *renderer,
1913                                                    gint                 number_of_rows)
1914 {
1915   g_return_if_fail (GTK_IS_CELL_RENDERER_TEXT (renderer));
1916   g_return_if_fail (number_of_rows == -1 || number_of_rows > 0);
1917
1918   if (number_of_rows == -1)
1919     {
1920       gtk_cell_renderer_set_fixed_size (GTK_CELL_RENDERER (renderer),
1921                                         GTK_CELL_RENDERER (renderer)->width,
1922                                         -1);
1923     }
1924   else
1925     {
1926       renderer->fixed_height_rows = number_of_rows;
1927       renderer->calc_fixed_height = TRUE;
1928     }
1929 }
1930
1931 #define __GTK_CELL_RENDERER_TEXT_C__
1932 #include "gtkaliasdef.c"