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