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 <stdlib.h>
  21 #include "gtkcellrenderertext.h"
  22 #include "gtkeditable.h"
  23 #include "gtkentry.h"
  24 #include "gtksignal.h"
  25 #include "gtkintl.h"
  26
  27 static void gtk_cell_renderer_text_init       (GtkCellRendererText      *celltext);
  28 static void gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class);
  29 static void gtk_cell_renderer_text_finalize   (GObject                  *object);
  30
  31 static void gtk_cell_renderer_text_get_property  (GObject                  *object,
  32                                                   guint                     param_id,
  33                                                   GValue                   *value,
  34                                                   GParamSpec               *pspec);
  35 static void gtk_cell_renderer_text_set_property  (GObject                  *object,
  36                                                   guint                     param_id,
  37                                                   const GValue             *value,
  38                                                   GParamSpec               *pspec);
  39 static void gtk_cell_renderer_text_get_size   (GtkCellRenderer          *cell,
  40                                                GtkWidget                *widget,
  41                                                GdkRectangle             *cell_area,
  42                                                gint                     *x_offset,
  43                                                gint                     *y_offset,
  44                                                gint                     *width,
  45                                                gint                     *height);
  46 static void gtk_cell_renderer_text_render     (GtkCellRenderer          *cell,
  47                                                GdkWindow                *window,
  48                                                GtkWidget                *widget,
  49                                                GdkRectangle             *background_area,
  50                                                GdkRectangle             *cell_area,
  51                                                GdkRectangle             *expose_area,
  52                                                guint                     flags);
  53
  54 static GtkCellEditable *gtk_cell_renderer_text_start_editing (GtkCellRenderer      *cell,
  55                                                               GdkEvent             *event,
  56                                                               GtkWidget            *widget,
  57                                                               gchar                *path,
  58                                                               GdkRectangle         *background_area,
  59                                                               GdkRectangle         *cell_area,
  60                                                               GtkCellRendererState  flags);
  61
  62 enum {
  63   EDITED,
  64   LAST_SIGNAL
  65 };
  66
  67 enum {
  68   PROP_0,
  69
  70   PROP_TEXT,
  71   PROP_MARKUP,
  72   PROP_ATTRIBUTES,
  73
  74   /* Style args */
  75   PROP_BACKGROUND,
  76   PROP_FOREGROUND,
  77   PROP_BACKGROUND_GDK,
  78   PROP_FOREGROUND_GDK,
  79   PROP_FONT,
  80   PROP_FONT_DESC,
  81   PROP_FAMILY,
  82   PROP_STYLE,
  83   PROP_VARIANT,
  84   PROP_WEIGHT,
  85   PROP_STRETCH,
  86   PROP_SIZE,
  87   PROP_SIZE_POINTS,
  88   PROP_SCALE,
  89   PROP_EDITABLE,
  90   PROP_STRIKETHROUGH,
  91   PROP_UNDERLINE,
  92   PROP_RISE,
  93
  94   /* Whether-a-style-arg-is-set args */
  95   PROP_BACKGROUND_SET,
  96   PROP_FOREGROUND_SET,
  97   PROP_FAMILY_SET,
  98   PROP_STYLE_SET,
  99   PROP_VARIANT_SET,
 100   PROP_WEIGHT_SET,
 101   PROP_STRETCH_SET,
 102   PROP_SIZE_SET,
 103   PROP_SCALE_SET,
 104   PROP_EDITABLE_SET,
 105   PROP_STRIKETHROUGH_SET,
 106   PROP_UNDERLINE_SET,
 107   PROP_RISE_SET
 108 };
 109
 110 static gpointer parent_class;
 111 static guint text_cell_renderer_signals [LAST_SIGNAL];
 112
 113 #define GTK_CELL_RENDERER_TEXT_PATH "gtk-cell-renderer-text-path"
 114
 115 GtkType
 116 gtk_cell_renderer_text_get_type (void)
 117 {
 118   static GtkType cell_text_type = 0;
 119
 120   if (!cell_text_type)
 121     {
 122       static const GTypeInfo cell_text_info =
 123       {
 124         sizeof (GtkCellRendererTextClass),
 125         NULL,           /* base_init */
 126         NULL,           /* base_finalize */
 127         (GClassInitFunc) gtk_cell_renderer_text_class_init,
 128         NULL,           /* class_finalize */
 129         NULL,           /* class_data */
 130         sizeof (GtkCellRendererText),
 131         0,              /* n_preallocs */
 132         (GInstanceInitFunc) gtk_cell_renderer_text_init,
 133       };
 134
 135       cell_text_type = g_type_register_static (GTK_TYPE_CELL_RENDERER, "GtkCellRendererText", &cell_text_info, 0);
 136     }
 137
 138   return cell_text_type;
 139 }
 140
 141 static void
 142 gtk_cell_renderer_text_init (GtkCellRendererText *celltext)
 143 {
 144   GTK_CELL_RENDERER (celltext)->xalign = 0.0;
 145   GTK_CELL_RENDERER (celltext)->yalign = 0.5;
 146   GTK_CELL_RENDERER (celltext)->xpad = 2;
 147   GTK_CELL_RENDERER (celltext)->ypad = 2;
 148   GTK_CELL_RENDERER (celltext)->mode = GTK_CELL_RENDERER_MODE_EDITABLE;
 149   celltext->fixed_height_rows = -1;
 150   celltext->font = pango_font_description_new ();
 151 }
 152
 153 static void
 154 gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class)
 155 {
 156   GObjectClass *object_class = G_OBJECT_CLASS (class);
 157   GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (class);
 158
 159   parent_class = g_type_class_peek_parent (class);
 160
 161   object_class->finalize = gtk_cell_renderer_text_finalize;
 162
 163   object_class->get_property = gtk_cell_renderer_text_get_property;
 164   object_class->set_property = gtk_cell_renderer_text_set_property;
 165
 166   cell_class->get_size = gtk_cell_renderer_text_get_size;
 167   cell_class->render = gtk_cell_renderer_text_render;
 168   cell_class->start_editing = gtk_cell_renderer_text_start_editing;
 169
 170   g_object_class_install_property (object_class,
 171                                    PROP_TEXT,
 172                                    g_param_spec_string ("text",
 173                                                         _("Text"),
 174                                                         _("Text to render"),
 175                                                         NULL,
 176                                                         G_PARAM_READWRITE));
 177
 178   g_object_class_install_property (object_class,
 179                                    PROP_MARKUP,
 180                                    g_param_spec_string ("markup",
 181                                                         _("Markup"),
 182                                                         _("Marked up text to render"),
 183                                                         NULL,
 184                                                         G_PARAM_WRITABLE));
 185
 186   g_object_class_install_property (object_class,
 187                                    PROP_ATTRIBUTES,
 188                                    g_param_spec_boxed ("attributes",
 189                                                        _("Attributes"),
 190                                                        _("A list of style attributes to apply to the text of the renderer."),
 191                                                        PANGO_TYPE_ATTR_LIST,
 192                                                        G_PARAM_READWRITE));
 193
 194   g_object_class_install_property (object_class,
 195                                    PROP_BACKGROUND,
 196                                    g_param_spec_string ("background",
 197                                                         _("Background color name"),
 198                                                         _("Background color as a string"),
 199                                                         NULL,
 200                                                         G_PARAM_WRITABLE));
 201
 202   g_object_class_install_property (object_class,
 203                                    PROP_BACKGROUND_GDK,
 204                                    g_param_spec_boxed ("background_gdk",
 205                                                        _("Background color"),
 206                                                        _("Background color as a GdkColor"),
 207                                                        GDK_TYPE_COLOR,
 208                                                        G_PARAM_READABLE | G_PARAM_WRITABLE));
 209
 210   g_object_class_install_property (object_class,
 211                                    PROP_FOREGROUND,
 212                                    g_param_spec_string ("foreground",
 213                                                         _("Foreground color name"),
 214                                                         _("Foreground color as a string"),
 215                                                         NULL,
 216                                                         G_PARAM_WRITABLE));
 217
 218   g_object_class_install_property (object_class,
 219                                    PROP_FOREGROUND_GDK,
 220                                    g_param_spec_boxed ("foreground_gdk",
 221                                                        _("Foreground color"),
 222                                                        _("Foreground color as a GdkColor"),
 223                                                        GDK_TYPE_COLOR,
 224                                                        G_PARAM_READABLE | G_PARAM_WRITABLE));
 225
 226
 227   g_object_class_install_property (object_class,
 228                                    PROP_EDITABLE,
 229                                    g_param_spec_boolean ("editable",
 230                                                          _("Editable"),
 231                                                          _("Whether the text can be modified by the user"),
 232                                                          TRUE,
 233                                                          G_PARAM_READABLE | G_PARAM_WRITABLE));
 234
 235   g_object_class_install_property (object_class,
 236                                    PROP_FONT,
 237                                    g_param_spec_string ("font",
 238                                                         _("Font"),
 239                                                         _("Font description as a string"),
 240                                                         NULL,
 241                                                         G_PARAM_READABLE | G_PARAM_WRITABLE));
 242
 243   g_object_class_install_property (object_class,
 244                                    PROP_FONT_DESC,
 245                                    g_param_spec_boxed ("font_desc",
 246                                                        _("Font"),
 247                                                        _("Font description as a PangoFontDescription struct"),
 248                                                        PANGO_TYPE_FONT_DESCRIPTION,
 249                                                        G_PARAM_READABLE | G_PARAM_WRITABLE));
 250
 251
 252   g_object_class_install_property (object_class,
 253                                    PROP_FAMILY,
 254                                    g_param_spec_string ("family",
 255                                                         _("Font family"),
 256                                                         _("Name of the font family, e.g. Sans, Helvetica, Times, Monospace"),
 257                                                         NULL,
 258                                                         G_PARAM_READABLE | G_PARAM_WRITABLE));
 259
 260   g_object_class_install_property (object_class,
 261                                    PROP_STYLE,
 262                                    g_param_spec_enum ("style",
 263                                                       _("Font style"),
 264                                                       _("Font style"),
 265                                                       PANGO_TYPE_STYLE,
 266                                                       PANGO_STYLE_NORMAL,
 267                                                       G_PARAM_READABLE | G_PARAM_WRITABLE));
 268
 269   g_object_class_install_property (object_class,
 270                                    PROP_VARIANT,
 271                                    g_param_spec_enum ("variant",
 272                                                      _("Font variant"),
 273                                                      _("Font variant"),
 274                                                       PANGO_TYPE_VARIANT,
 275                                                       PANGO_VARIANT_NORMAL,
 276                                                       G_PARAM_READABLE | G_PARAM_WRITABLE));
 277
 278   g_object_class_install_property (object_class,
 279                                    PROP_WEIGHT,
 280                                    g_param_spec_int ("weight",
 281                                                      _("Font weight"),
 282                                                      _("Font weight"),
 283                                                      0,
 284                                                      G_MAXINT,
 285                                                      PANGO_WEIGHT_NORMAL,
 286                                                      G_PARAM_READABLE | G_PARAM_WRITABLE));
 287
 288    g_object_class_install_property (object_class,
 289                                    PROP_STRETCH,
 290                                    g_param_spec_enum ("stretch",
 291                                                       _("Font stretch"),
 292                                                       _("Font stretch"),
 293                                                       PANGO_TYPE_STRETCH,
 294                                                       PANGO_STRETCH_NORMAL,
 295                                                       G_PARAM_READABLE | G_PARAM_WRITABLE));
 296
 297   g_object_class_install_property (object_class,
 298                                    PROP_SIZE,
 299                                    g_param_spec_int ("size",
 300                                                      _("Font size"),
 301                                                      _("Font size"),
 302                                                      0,
 303                                                      G_MAXINT,
 304                                                      0,
 305                                                      G_PARAM_READABLE | G_PARAM_WRITABLE));
 306
 307   g_object_class_install_property (object_class,
 308                                    PROP_SIZE_POINTS,
 309                                    g_param_spec_double ("size_points",
 310                                                         _("Font points"),
 311                                                         _("Font size in points"),
 312                                                         0.0,
 313                                                         G_MAXDOUBLE,
 314                                                         0.0,
 315                                                         G_PARAM_READABLE | G_PARAM_WRITABLE));
 316
 317   g_object_class_install_property (object_class,
 318                                    PROP_SCALE,
 319                                    g_param_spec_double ("scale",
 320                                                         _("Font scale"),
 321                                                         _("Font scaling factor"),
 322                                                         0.0,
 323                                                         G_MAXDOUBLE,
 324                                                         1.0,
 325                                                         G_PARAM_READABLE | G_PARAM_WRITABLE));
 326
 327   g_object_class_install_property (object_class,
 328                                    PROP_RISE,
 329                                    g_param_spec_int ("rise",
 330                                                      _("Rise"),
 331                                                      _("Offset of text above the baseline (below the baseline if rise is negative)"),
 332                                                      -G_MAXINT,
 333                                                      G_MAXINT,
 334                                                      0,
 335                                                      G_PARAM_READABLE | G_PARAM_WRITABLE));
 336
 337
 338   g_object_class_install_property (object_class,
 339                                    PROP_STRIKETHROUGH,
 340                                    g_param_spec_boolean ("strikethrough",
 341                                                          _("Strikethrough"),
 342                                                          _("Whether to strike through the text"),
 343                                                          FALSE,
 344                                                          G_PARAM_READABLE | G_PARAM_WRITABLE));
 345
 346   g_object_class_install_property (object_class,
 347                                    PROP_UNDERLINE,
 348                                    g_param_spec_enum ("underline",
 349                                                       _("Underline"),
 350                                                       _("Style of underline for this text"),
 351                                                       PANGO_TYPE_UNDERLINE,
 352                                                       PANGO_UNDERLINE_NONE,
 353                                                       G_PARAM_READABLE | G_PARAM_WRITABLE));
 354
 355   /* Style props are set or not */
 356
 357 #define ADD_SET_PROP(propname, propval, nick, blurb) g_object_class_install_property (object_class, propval, g_param_spec_boolean (propname, nick, blurb, FALSE, G_PARAM_READABLE | G_PARAM_WRITABLE))
 358
 359   ADD_SET_PROP ("background_set", PROP_BACKGROUND_SET,
 360                 _("Background set"),
 361                 _("Whether this tag affects the background color"));
 362
 363   ADD_SET_PROP ("foreground_set", PROP_FOREGROUND_SET,
 364                 _("Foreground set"),
 365                 _("Whether this tag affects the foreground color"));
 366
 367   ADD_SET_PROP ("editable_set", PROP_EDITABLE_SET,
 368                 _("Editability set"),
 369                 _("Whether this tag affects text editability"));
 370
 371   ADD_SET_PROP ("family_set", PROP_FAMILY_SET,
 372                 _("Font family set"),
 373                 _("Whether this tag affects the font family"));
 374
 375   ADD_SET_PROP ("style_set", PROP_STYLE_SET,
 376                 _("Font style set"),
 377                 _("Whether this tag affects the font style"));
 378
 379   ADD_SET_PROP ("variant_set", PROP_VARIANT_SET,
 380                 _("Font variant set"),
 381                 _("Whether this tag affects the font variant"));
 382
 383   ADD_SET_PROP ("weight_set", PROP_WEIGHT_SET,
 384                 _("Font weight set"),
 385                 _("Whether this tag affects the font weight"));
 386
 387   ADD_SET_PROP ("stretch_set", PROP_STRETCH_SET,
 388                 _("Font stretch set"),
 389                 _("Whether this tag affects the font stretch"));
 390
 391   ADD_SET_PROP ("size_set", PROP_SIZE_SET,
 392                 _("Font size set"),
 393                 _("Whether this tag affects the font size"));
 394
 395   ADD_SET_PROP ("scale_set", PROP_SCALE_SET,
 396                 _("Font scale set"),
 397                 _("Whether this tag scales the font size by a factor"));
 398
 399   ADD_SET_PROP ("rise_set", PROP_RISE_SET,
 400                 _("Rise set"),
 401                 _("Whether this tag affects the rise"));
 402
 403   ADD_SET_PROP ("strikethrough_set", PROP_STRIKETHROUGH_SET,
 404                 _("Strikethrough set"),
 405                 _("Whether this tag affects strikethrough"));
 406
 407   ADD_SET_PROP ("underline_set", PROP_UNDERLINE_SET,
 408                 _("Underline set"),
 409                 _("Whether this tag affects underlining"));
 410
 411   text_cell_renderer_signals [EDITED] =
 412     gtk_signal_new ("edited",
 413                     GTK_RUN_LAST,
 414                     GTK_CLASS_TYPE (object_class),
 415                     GTK_SIGNAL_OFFSET (GtkCellRendererTextClass, edited),
 416                     gtk_marshal_VOID__STRING_STRING,
 417                     GTK_TYPE_NONE, 2,
 418                     G_TYPE_STRING,
 419                     G_TYPE_STRING);
 420
 421 }
 422
 423 static void
 424 gtk_cell_renderer_text_finalize (GObject *object)
 425 {
 426   GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (object);
 427
 428   pango_font_description_free (celltext->font);
 429
 430   if (celltext->text)
 431     g_free (celltext->text);
 432
 433   if (celltext->extra_attrs)
 434     pango_attr_list_unref (celltext->extra_attrs);
 435
 436   (* G_OBJECT_CLASS (parent_class)->finalize) (object);
 437 }
 438
 439 static PangoFontMask
 440 get_property_font_set_mask (guint prop_id)
 441 {
 442   switch (prop_id)
 443     {
 444     case PROP_FAMILY_SET:
 445       return PANGO_FONT_MASK_FAMILY;
 446     case PROP_STYLE_SET:
 447       return PANGO_FONT_MASK_STYLE;
 448     case PROP_VARIANT_SET:
 449       return PANGO_FONT_MASK_VARIANT;
 450     case PROP_WEIGHT_SET:
 451       return PANGO_FONT_MASK_WEIGHT;
 452     case PROP_STRETCH_SET:
 453       return PANGO_FONT_MASK_STRETCH;
 454     case PROP_SIZE_SET:
 455       return PANGO_FONT_MASK_SIZE;
 456     }
 457
 458   return 0;
 459 }
 460
 461 static void
 462 gtk_cell_renderer_text_get_property (GObject        *object,
 463                                      guint           param_id,
 464                                      GValue         *value,
 465                                      GParamSpec     *pspec)
 466 {
 467   GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (object);
 468
 469   switch (param_id)
 470     {
 471     case PROP_TEXT:
 472       g_value_set_string (value, celltext->text);
 473       break;
 474
 475     case PROP_ATTRIBUTES:
 476       g_value_set_boxed (value, celltext->extra_attrs);
 477       break;
 478
 479     case PROP_BACKGROUND_GDK:
 480       {
 481         GdkColor color;
 482
 483         color.red = celltext->background.red;
 484         color.green = celltext->background.green;
 485         color.blue = celltext->background.blue;
 486
 487         g_value_set_boxed (value, &color);
 488       }
 489       break;
 490
 491     case PROP_FOREGROUND_GDK:
 492       {
 493         GdkColor color;
 494
 495         color.red = celltext->foreground.red;
 496         color.green = celltext->foreground.green;
 497         color.blue = celltext->foreground.blue;
 498
 499         g_value_set_boxed (value, &color);
 500       }
 501       break;
 502
 503     case PROP_FONT:
 504       {
 505         /* FIXME GValue imposes a totally gratuitous string copy
 506          * here, we could just hand off string ownership
 507          */
 508         gchar *str = pango_font_description_to_string (celltext->font);
 509         g_value_set_string (value, str);
 510         g_free (str);
 511       }
 512       break;
 513
 514     case PROP_FONT_DESC:
 515       g_value_set_boxed (value, celltext->font);
 516       break;
 517
 518     case PROP_FAMILY:
 519       g_value_set_string (value, pango_font_description_get_family (celltext->font));
 520       break;
 521
 522     case PROP_STYLE:
 523       g_value_set_enum (value, pango_font_description_get_style (celltext->font));
 524       break;
 525
 526     case PROP_VARIANT:
 527       g_value_set_enum (value, pango_font_description_get_variant (celltext->font));
 528       break;
 529
 530     case PROP_WEIGHT:
 531       g_value_set_int (value, pango_font_description_get_weight (celltext->font));
 532       break;
 533
 534     case PROP_STRETCH:
 535       g_value_set_enum (value, pango_font_description_get_stretch (celltext->font));
 536       break;
 537
 538     case PROP_SIZE:
 539       g_value_set_int (value, pango_font_description_get_size (celltext->font));
 540       break;
 541
 542     case PROP_SIZE_POINTS:
 543       g_value_set_double (value, ((double)pango_font_description_get_size (celltext->font)) / (double)PANGO_SCALE);
 544       break;
 545
 546     case PROP_SCALE:
 547       g_value_set_double (value, celltext->font_scale);
 548       break;
 549
 550     case PROP_EDITABLE:
 551       g_value_set_boolean (value, celltext->editable);
 552       break;
 553
 554     case PROP_STRIKETHROUGH:
 555       g_value_set_boolean (value, celltext->strikethrough);
 556       break;
 557
 558     case PROP_UNDERLINE:
 559       g_value_set_enum (value, celltext->underline_style);
 560       break;
 561
 562     case PROP_RISE:
 563       g_value_set_int (value, celltext->rise);
 564       break;
 565
 566     case PROP_BACKGROUND_SET:
 567       g_value_set_boolean (value, celltext->background_set);
 568       break;
 569
 570     case PROP_FOREGROUND_SET:
 571       g_value_set_boolean (value, celltext->foreground_set);
 572       break;
 573
 574     case PROP_FAMILY_SET:
 575     case PROP_STYLE_SET:
 576     case PROP_VARIANT_SET:
 577     case PROP_WEIGHT_SET:
 578     case PROP_STRETCH_SET:
 579     case PROP_SIZE_SET:
 580       {
 581         PangoFontMask mask = get_property_font_set_mask (param_id);
 582         g_value_set_boolean (value, (pango_font_description_get_set_fields (celltext->font) & mask) != 0);
 583
 584         break;
 585       }
 586
 587     case PROP_SCALE_SET:
 588       g_value_set_boolean (value, celltext->scale_set);
 589       break;
 590
 591     case PROP_EDITABLE_SET:
 592       g_value_set_boolean (value, celltext->editable_set);
 593       break;
 594
 595     case PROP_STRIKETHROUGH_SET:
 596       g_value_set_boolean (value, celltext->strikethrough_set);
 597       break;
 598
 599     case PROP_UNDERLINE_SET:
 600       g_value_set_boolean (value, celltext->underline_set);
 601       break;
 602
 603     case  PROP_RISE_SET:
 604       g_value_set_boolean (value, celltext->rise_set);
 605       break;
 606
 607     case PROP_BACKGROUND:
 608     case PROP_FOREGROUND:
 609     case PROP_MARKUP:
 610     default:
 611       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 612       break;
 613     }
 614 }
 615
 616
 617 static void
 618 set_bg_color (GtkCellRendererText *celltext,
 619               GdkColor            *color)
 620 {
 621   if (color)
 622     {
 623       if (!celltext->background_set)
 624         {
 625           celltext->background_set = TRUE;
 626           g_object_notify (G_OBJECT (celltext), "background_set");
 627         }
 628
 629       celltext->background.red = color->red;
 630       celltext->background.green = color->green;
 631       celltext->background.blue = color->blue;
 632     }
 633   else
 634     {
 635       if (celltext->background_set)
 636         {
 637           celltext->background_set = FALSE;
 638           g_object_notify (G_OBJECT (celltext), "background_set");
 639         }
 640     }
 641 }
 642
 643
 644 static void
 645 set_fg_color (GtkCellRendererText *celltext,
 646               GdkColor            *color)
 647 {
 648   if (color)
 649     {
 650       if (!celltext->foreground_set)
 651         {
 652           celltext->foreground_set = TRUE;
 653           g_object_notify (G_OBJECT (celltext), "foreground_set");
 654         }
 655
 656       celltext->foreground.red = color->red;
 657       celltext->foreground.green = color->green;
 658       celltext->foreground.blue = color->blue;
 659     }
 660   else
 661     {
 662       if (celltext->foreground_set)
 663         {
 664           celltext->foreground_set = FALSE;
 665           g_object_notify (G_OBJECT (celltext), "foreground_set");
 666         }
 667     }
 668 }
 669
 670 static PangoFontMask
 671 set_font_desc_fields (PangoFontDescription *desc,
 672                       PangoFontMask         to_set)
 673 {
 674   PangoFontMask changed_mask = 0;
 675
 676   if (to_set & PANGO_FONT_MASK_FAMILY)
 677     {
 678       const char *family = pango_font_description_get_family (desc);
 679       if (!family)
 680         {
 681           family = "sans";
 682           changed_mask |= PANGO_FONT_MASK_FAMILY;
 683         }
 684
 685       pango_font_description_set_family (desc, family);
 686     }
 687   if (to_set & PANGO_FONT_MASK_STYLE)
 688     pango_font_description_set_style (desc, pango_font_description_get_style (desc));
 689   if (to_set & PANGO_FONT_MASK_VARIANT)
 690     pango_font_description_set_variant (desc, pango_font_description_get_variant (desc));
 691   if (to_set & PANGO_FONT_MASK_WEIGHT)
 692     pango_font_description_set_weight (desc, pango_font_description_get_weight (desc));
 693   if (to_set & PANGO_FONT_MASK_STRETCH)
 694     pango_font_description_set_stretch (desc, pango_font_description_get_stretch (desc));
 695   if (to_set & PANGO_FONT_MASK_SIZE)
 696     {
 697       gint size = pango_font_description_get_size (desc);
 698       if (size <= 0)
 699         {
 700           size = 10 * PANGO_SCALE;
 701           changed_mask |= PANGO_FONT_MASK_SIZE;
 702         }
 703
 704       pango_font_description_set_size (desc, size);
 705     }
 706
 707   return changed_mask;
 708 }
 709
 710 static void
 711 notify_set_changed (GObject       *object,
 712                     PangoFontMask  changed_mask)
 713 {
 714   if (changed_mask & PANGO_FONT_MASK_FAMILY)
 715     g_object_notify (object, "family_set");
 716   if (changed_mask & PANGO_FONT_MASK_STYLE)
 717     g_object_notify (object, "style_set");
 718   if (changed_mask & PANGO_FONT_MASK_VARIANT)
 719     g_object_notify (object, "variant_set");
 720   if (changed_mask & PANGO_FONT_MASK_WEIGHT)
 721     g_object_notify (object, "weight_set");
 722   if (changed_mask & PANGO_FONT_MASK_STRETCH)
 723     g_object_notify (object, "stretch_set");
 724   if (changed_mask & PANGO_FONT_MASK_SIZE)
 725     g_object_notify (object, "size_set");
 726 }
 727
 728 static void
 729 notify_fields_changed (GObject       *object,
 730                        PangoFontMask  changed_mask)
 731 {
 732   if (changed_mask & PANGO_FONT_MASK_FAMILY)
 733     g_object_notify (object, "family");
 734   if (changed_mask & PANGO_FONT_MASK_STYLE)
 735     g_object_notify (object, "style");
 736   if (changed_mask & PANGO_FONT_MASK_VARIANT)
 737     g_object_notify (object, "variant");
 738   if (changed_mask & PANGO_FONT_MASK_WEIGHT)
 739     g_object_notify (object, "weight");
 740   if (changed_mask & PANGO_FONT_MASK_STRETCH)
 741     g_object_notify (object, "stretch");
 742   if (changed_mask & PANGO_FONT_MASK_SIZE)
 743     g_object_notify (object, "size");
 744 }
 745
 746 static void
 747 set_font_description (GtkCellRendererText  *celltext,
 748                       PangoFontDescription *font_desc)
 749 {
 750   GObject *object = G_OBJECT (celltext);
 751   PangoFontDescription *new_font_desc;
 752   PangoFontMask old_mask, new_mask, changed_mask, set_changed_mask;
 753
 754   if (font_desc)
 755     new_font_desc = pango_font_description_copy (font_desc);
 756   else
 757     new_font_desc = pango_font_description_new ();
 758
 759   old_mask = pango_font_description_get_set_fields (celltext->font);
 760   new_mask = pango_font_description_get_set_fields (new_font_desc);
 761
 762   changed_mask = old_mask | new_mask;
 763   set_changed_mask = old_mask ^ new_mask;
 764
 765   pango_font_description_free (celltext->font);
 766   celltext->font = new_font_desc;
 767
 768   g_object_freeze_notify (object);
 769
 770   g_object_notify (object, "font_desc");
 771   g_object_notify (object, "font");
 772
 773   if (changed_mask & PANGO_FONT_MASK_FAMILY)
 774     g_object_notify (object, "family");
 775   if (changed_mask & PANGO_FONT_MASK_STYLE)
 776     g_object_notify (object, "style");
 777   if (changed_mask & PANGO_FONT_MASK_VARIANT)
 778     g_object_notify (object, "variant");
 779   if (changed_mask & PANGO_FONT_MASK_WEIGHT)
 780     g_object_notify (object, "weight");
 781   if (changed_mask & PANGO_FONT_MASK_STRETCH)
 782     g_object_notify (object, "stretch");
 783   if (changed_mask & PANGO_FONT_MASK_SIZE)
 784     {
 785       g_object_notify (object, "size");
 786       g_object_notify (object, "size_points");
 787     }
 788
 789   notify_set_changed (object, set_changed_mask);
 790
 791   g_object_thaw_notify (object);
 792 }
 793
 794 static void
 795 gtk_cell_renderer_text_set_property (GObject      *object,
 796                                      guint         param_id,
 797                                      const GValue *value,
 798                                      GParamSpec   *pspec)
 799 {
 800   GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (object);
 801
 802   switch (param_id)
 803     {
 804     case PROP_TEXT:
 805       if (celltext->text)
 806         g_free (celltext->text);
 807       celltext->text = g_strdup (g_value_get_string (value));
 808       g_object_notify (object, "text");
 809       break;
 810
 811     case PROP_ATTRIBUTES:
 812       if (celltext->extra_attrs)
 813         pango_attr_list_unref (celltext->extra_attrs);
 814
 815       celltext->extra_attrs = g_value_get_boxed (value);
 816       if (celltext->extra_attrs)
 817         pango_attr_list_ref (celltext->extra_attrs);
 818       break;
 819     case PROP_MARKUP:
 820       {
 821         const gchar *str;
 822         gchar *text = NULL;
 823         GError *error = NULL;
 824         PangoAttrList *attrs = NULL;
 825
 826         if (celltext->text)
 827           g_free (celltext->text);
 828
 829         if (celltext->extra_attrs)
 830           pango_attr_list_unref (celltext->extra_attrs);
 831
 832         str = g_value_get_string (value);
 833         if (str && !pango_parse_markup (str,
 834                                         -1,
 835                                         0,
 836                                         &attrs,
 837                                         &text,
 838                                         NULL,
 839                                         &error))
 840           {
 841             g_warning ("Failed to set cell text from markup due to error parsing markup: %s",
 842                        error->message);
 843             g_error_free (error);
 844             return;
 845           }
 846
 847         celltext->text = text;
 848         celltext->extra_attrs = attrs;
 849       }
 850       break;
 851
 852     case PROP_BACKGROUND:
 853       {
 854         GdkColor color;
 855
 856         if (!g_value_get_string (value))
 857           set_bg_color (celltext, NULL);       /* reset to backgrounmd_set to FALSE */
 858         else if (gdk_color_parse (g_value_get_string (value), &color))
 859           set_bg_color (celltext, &color);
 860         else
 861           g_warning ("Don't know color `%s'", g_value_get_string (value));
 862
 863         g_object_notify (object, "background_gdk");
 864       }
 865       break;
 866
 867     case PROP_FOREGROUND:
 868       {
 869         GdkColor color;
 870
 871         if (!g_value_get_string (value))
 872           set_fg_color (celltext, NULL);       /* reset to foreground_set to FALSE */
 873         else if (gdk_color_parse (g_value_get_string (value), &color))
 874           set_fg_color (celltext, &color);
 875         else
 876           g_warning ("Don't know color `%s'", g_value_get_string (value));
 877
 878         g_object_notify (object, "foreground_gdk");
 879       }
 880       break;
 881
 882     case PROP_BACKGROUND_GDK:
 883       /* This notifies the GObject itself. */
 884       set_bg_color (celltext, g_value_get_boxed (value));
 885       break;
 886
 887     case PROP_FOREGROUND_GDK:
 888       /* This notifies the GObject itself. */
 889       set_fg_color (celltext, g_value_get_boxed (value));
 890       break;
 891
 892     case PROP_FONT:
 893       {
 894         PangoFontDescription *font_desc = NULL;
 895         const gchar *name;
 896
 897         name = g_value_get_string (value);
 898
 899         if (name)
 900           font_desc = pango_font_description_from_string (name);
 901
 902         set_font_description (celltext, font_desc);
 903
 904         if (celltext->fixed_height_rows != -1)
 905           celltext->calc_fixed_height = TRUE;
 906       }
 907       break;
 908
 909     case PROP_FONT_DESC:
 910       set_font_description (celltext, g_value_get_boxed (value));
 911
 912       if (celltext->fixed_height_rows != -1)
 913         celltext->calc_fixed_height = TRUE;
 914       break;
 915
 916     case PROP_FAMILY:
 917     case PROP_STYLE:
 918     case PROP_VARIANT:
 919     case PROP_WEIGHT:
 920     case PROP_STRETCH:
 921     case PROP_SIZE:
 922     case PROP_SIZE_POINTS:
 923       {
 924         PangoFontMask old_set_mask = pango_font_description_get_set_fields (celltext->font);
 925
 926         switch (param_id)
 927           {
 928           case PROP_FAMILY:
 929             pango_font_description_set_family (celltext->font,
 930                                                g_value_get_string (value));
 931             break;
 932           case PROP_STYLE:
 933             pango_font_description_set_style (celltext->font,
 934                                               g_value_get_enum (value));
 935             break;
 936           case PROP_VARIANT:
 937             pango_font_description_set_variant (celltext->font,
 938                                                 g_value_get_enum (value));
 939             break;
 940           case PROP_WEIGHT:
 941             pango_font_description_set_weight (celltext->font,
 942                                                g_value_get_int (value));
 943             break;
 944           case PROP_STRETCH:
 945             pango_font_description_set_stretch (celltext->font,
 946                                                 g_value_get_enum (value));
 947             break;
 948           case PROP_SIZE:
 949             pango_font_description_set_size (celltext->font,
 950                                              g_value_get_int (value));
 951             g_object_notify (object, "size_points");
 952             break;
 953           case PROP_SIZE_POINTS:
 954             pango_font_description_set_size (celltext->font,
 955                                              g_value_get_double (value) * PANGO_SCALE);
 956             g_object_notify (object, "size");
 957             break;
 958           }
 959
 960         if (celltext->fixed_height_rows != -1)
 961           celltext->calc_fixed_height = TRUE;
 962
 963         notify_set_changed (object, old_set_mask & pango_font_description_get_set_fields (celltext->font));
 964         g_object_notify (object, "font_desc");
 965         g_object_notify (object, "font");
 966
 967         break;
 968       }
 969
 970     case PROP_SCALE:
 971       celltext->font_scale = g_value_get_double (value);
 972       celltext->scale_set = TRUE;
 973       if (celltext->fixed_height_rows != -1)
 974         celltext->calc_fixed_height = TRUE;
 975       g_object_notify (object, "scale_set");
 976       break;
 977
 978     case PROP_EDITABLE:
 979       celltext->editable = g_value_get_boolean (value);
 980       celltext->editable_set = TRUE;
 981       g_object_notify (object, "editable_set");
 982       break;
 983
 984     case PROP_STRIKETHROUGH:
 985       celltext->strikethrough = g_value_get_boolean (value);
 986       celltext->strikethrough_set = TRUE;
 987       g_object_notify (object, "strikethrough_set");
 988       break;
 989
 990     case PROP_UNDERLINE:
 991       celltext->underline_style = g_value_get_enum (value);
 992       celltext->underline_set = TRUE;
 993       g_object_notify (object, "underline_set");
 994
 995       break;
 996
 997     case PROP_RISE:
 998       celltext->rise = g_value_get_int (value);
 999       celltext->rise_set = TRUE;
1000       g_object_notify (object, "rise_set");
1001       if (celltext->fixed_height_rows != -1)
1002         celltext->calc_fixed_height = TRUE;
1003       break;
1004
1005     case PROP_BACKGROUND_SET:
1006       celltext->background_set = g_value_get_boolean (value);
1007       break;
1008
1009     case PROP_FOREGROUND_SET:
1010       celltext->foreground_set = g_value_get_boolean (value);
1011       break;
1012
1013     case PROP_FAMILY_SET:
1014     case PROP_STYLE_SET:
1015     case PROP_VARIANT_SET:
1016     case PROP_WEIGHT_SET:
1017     case PROP_STRETCH_SET:
1018     case PROP_SIZE_SET:
1019       if (!g_value_get_boolean (value))
1020         {
1021           pango_font_description_unset_fields (celltext->font,
1022                                                get_property_font_set_mask (param_id));
1023         }
1024       else
1025         {
1026           PangoFontMask changed_mask;
1027
1028           changed_mask = set_font_desc_fields (celltext->font,
1029                                                get_property_font_set_mask (param_id));
1030           notify_fields_changed (G_OBJECT (celltext), changed_mask);
1031         }
1032       break;
1033
1034     case PROP_SCALE_SET:
1035       celltext->scale_set = g_value_get_boolean (value);
1036       break;
1037
1038     case PROP_EDITABLE_SET:
1039       celltext->editable_set = g_value_get_boolean (value);
1040       break;
1041
1042     case PROP_STRIKETHROUGH_SET:
1043       celltext->strikethrough_set = g_value_get_boolean (value);
1044       break;
1045
1046     case PROP_UNDERLINE_SET:
1047       celltext->underline_set = g_value_get_boolean (value);
1048       break;
1049
1050     case PROP_RISE_SET:
1051       celltext->rise_set = g_value_get_boolean (value);
1052       break;
1053
1054     default:
1055       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
1056       break;
1057     }
1058 }
1059
1060 /**
1061  * gtk_cell_renderer_text_new:
1062  *
1063  * Creates a new #GtkCellRendererText. Adjust how text is drawn using
1064  * object properties. Object properties can be
1065  * set globally (with g_object_set()). Also, with #GtkTreeViewColumn,
1066  * you can bind a property to a value in a #GtkTreeModel. For example,
1067  * you can bind the "text" property on the cell renderer to a string
1068  * value in the model, thus rendering a different string in each row
1069  * of the #GtkTreeView
1070  *
1071  * Return value: the new cell renderer
1072  **/
1073 GtkCellRenderer *
1074 gtk_cell_renderer_text_new (void)
1075 {
1076   return GTK_CELL_RENDERER (g_object_new (gtk_cell_renderer_text_get_type (), NULL));
1077 }
1078
1079 static void
1080 add_attr (PangoAttrList  *attr_list,
1081           PangoAttribute *attr)
1082 {
1083   attr->start_index = 0;
1084   attr->end_index = G_MAXINT;
1085
1086   pango_attr_list_insert (attr_list, attr);
1087 }
1088
1089 static PangoLayout*
1090 get_layout (GtkCellRendererText *celltext,
1091             GtkWidget           *widget,
1092             gboolean             will_render,
1093             GtkCellRendererState flags)
1094 {
1095   PangoAttrList *attr_list;
1096   PangoLayout *layout;
1097   PangoUnderline uline;
1098
1099   layout = gtk_widget_create_pango_layout (widget, celltext->text);
1100
1101   if (celltext->extra_attrs)
1102     attr_list = pango_attr_list_copy (celltext->extra_attrs);
1103   else
1104     attr_list = pango_attr_list_new ();
1105
1106   if (will_render)
1107     {
1108       /* Add options that affect appearance but not size */
1109
1110       /* note that background doesn't go here, since it affects
1111        * background_area not the PangoLayout area
1112        */
1113
1114       if (celltext->foreground_set)
1115         {
1116           PangoColor color;
1117
1118           color = celltext->foreground;
1119
1120           add_attr (attr_list,
1121                     pango_attr_foreground_new (color.red, color.green, color.blue));
1122         }
1123
1124       if (celltext->strikethrough_set)
1125         add_attr (attr_list,
1126                   pango_attr_strikethrough_new (celltext->strikethrough));
1127     }
1128
1129   add_attr (attr_list, pango_attr_font_desc_new (celltext->font));
1130
1131   if (celltext->scale_set &&
1132       celltext->font_scale != 1.0)
1133     add_attr (attr_list, pango_attr_scale_new (celltext->font_scale));
1134
1135   if (celltext->underline_set)
1136     uline = celltext->underline_style;
1137   else
1138     uline = PANGO_UNDERLINE_NONE;
1139
1140   if ((flags & GTK_CELL_RENDERER_PRELIT) == GTK_CELL_RENDERER_PRELIT)
1141     {
1142       switch (uline)
1143         {
1144         case PANGO_UNDERLINE_NONE:
1145           uline = PANGO_UNDERLINE_SINGLE;
1146           break;
1147
1148         case PANGO_UNDERLINE_SINGLE:
1149           uline = PANGO_UNDERLINE_DOUBLE;
1150           break;
1151
1152         default:
1153           break;
1154         }
1155     }
1156
1157   if (uline != PANGO_UNDERLINE_NONE)
1158     add_attr (attr_list, pango_attr_underline_new (celltext->underline_style));
1159
1160   if (celltext->rise_set)
1161     add_attr (attr_list, pango_attr_rise_new (celltext->rise));
1162
1163   pango_layout_set_attributes (layout, attr_list);
1164   pango_layout_set_width (layout, -1);
1165
1166   pango_attr_list_unref (attr_list);
1167
1168   return layout;
1169 }
1170
1171 static void
1172 gtk_cell_renderer_text_get_size (GtkCellRenderer *cell,
1173                                  GtkWidget       *widget,
1174                                  GdkRectangle    *cell_area,
1175                                  gint            *x_offset,
1176                                  gint            *y_offset,
1177                                  gint            *width,
1178                                  gint            *height)
1179 {
1180   GtkCellRendererText *celltext = (GtkCellRendererText *) cell;
1181   PangoRectangle rect;
1182   PangoLayout *layout;
1183
1184   if (celltext->calc_fixed_height)
1185     {
1186       PangoContext *context;
1187       PangoFontMetrics *metrics;
1188       PangoFontDescription *font_desc;
1189       gint row_height;
1190
1191       font_desc = pango_font_description_copy (widget->style->font_desc);
1192       pango_font_description_merge (font_desc, celltext->font, TRUE);
1193
1194       if (celltext->scale_set)
1195         pango_font_description_set_size (font_desc,
1196                                          celltext->font_scale * pango_font_description_get_size (font_desc));
1197
1198       context = gtk_widget_get_pango_context (widget);
1199
1200       metrics = pango_context_get_metrics (context,
1201                                            font_desc,
1202                                            pango_context_get_language (context));
1203       row_height = (pango_font_metrics_get_ascent (metrics) +
1204                     pango_font_metrics_get_descent (metrics));
1205       pango_font_metrics_unref (metrics);
1206
1207       gtk_cell_renderer_set_fixed_size (cell,
1208                                         cell->width, 2*cell->ypad +
1209                                         celltext->fixed_height_rows * PANGO_PIXELS (row_height));
1210
1211       if (height)
1212         {
1213           *height = cell->height;
1214           height = NULL;
1215         }
1216       celltext->calc_fixed_height = FALSE;
1217       if (width == NULL)
1218         return;
1219     }
1220   layout = get_layout (celltext, widget, FALSE, 0);
1221   pango_layout_get_pixel_extents (layout, NULL, &rect);
1222
1223   if (width)
1224     *width = GTK_CELL_RENDERER (celltext)->xpad * 2 + rect.width;
1225
1226   if (height)
1227     *height = GTK_CELL_RENDERER (celltext)->ypad * 2 + rect.height;
1228
1229   if (cell_area)
1230     {
1231       if (x_offset)
1232         {
1233           *x_offset = cell->xalign * (cell_area->width - rect.width - (2 * cell->xpad));
1234           *x_offset = MAX (*x_offset, 0);
1235         }
1236       if (y_offset)
1237         {
1238           *y_offset = cell->yalign * (cell_area->height - rect.height - (2 * cell->ypad));
1239           *y_offset = MAX (*y_offset, 0);
1240         }
1241     }
1242
1243   g_object_unref (G_OBJECT (layout));
1244 }
1245
1246 static void
1247 gtk_cell_renderer_text_render (GtkCellRenderer    *cell,
1248                                GdkWindow          *window,
1249                                GtkWidget          *widget,
1250                                GdkRectangle       *background_area,
1251                                GdkRectangle       *cell_area,
1252                                GdkRectangle       *expose_area,
1253                                guint               flags)
1254
1255 {
1256   GtkCellRendererText *celltext = (GtkCellRendererText *) cell;
1257   PangoLayout *layout;
1258   GtkStateType state;
1259   gint x_offset;
1260   gint y_offset;
1261
1262   layout = get_layout (celltext, widget, TRUE, flags);
1263
1264   gtk_cell_renderer_text_get_size (cell, widget, cell_area, &x_offset, &y_offset, NULL, NULL);
1265
1266   if ((flags & GTK_CELL_RENDERER_SELECTED) == GTK_CELL_RENDERER_SELECTED)
1267     {
1268       if (GTK_WIDGET_HAS_FOCUS (widget))
1269         state = GTK_STATE_SELECTED;
1270       else
1271         state = GTK_STATE_ACTIVE;
1272     }
1273   else
1274     {
1275       state = GTK_STATE_NORMAL;
1276     }
1277
1278   if (celltext->background_set && state != GTK_STATE_SELECTED)
1279     {
1280       GdkColor color;
1281       GdkGC *gc;
1282
1283       color.red = celltext->background.red;
1284       color.green = celltext->background.green;
1285       color.blue = celltext->background.blue;
1286
1287       gc = gdk_gc_new (window);
1288
1289       gdk_gc_set_rgb_fg_color (gc, &color);
1290
1291       gdk_draw_rectangle (window,
1292                           gc,
1293                           TRUE,
1294                           background_area->x,
1295                           background_area->y,
1296                           background_area->width,
1297                           background_area->height);
1298
1299       g_object_unref (G_OBJECT (gc));
1300     }
1301
1302   gtk_paint_layout (widget->style,
1303                     window,
1304                     state,
1305                     TRUE,
1306                     cell_area,
1307                     widget,
1308                     "cellrenderertext",
1309                     cell_area->x + x_offset + cell->xpad,
1310                     cell_area->y + y_offset + cell->ypad,
1311                     layout);
1312
1313   g_object_unref (G_OBJECT (layout));
1314 }
1315 static void
1316 gtk_cell_renderer_text_editing_done (GtkCellEditable *entry,
1317                                      gpointer         data)
1318 {
1319   gchar *path;
1320   gchar *new_text;
1321
1322   path = g_object_get_data (G_OBJECT (entry), GTK_CELL_RENDERER_TEXT_PATH);
1323   new_text = gtk_entry_get_text (GTK_ENTRY (entry));
1324
1325   gtk_signal_emit (GTK_OBJECT (data), text_cell_renderer_signals[EDITED], path, new_text);
1326 }
1327
1328 static GtkCellEditable *
1329 gtk_cell_renderer_text_start_editing (GtkCellRenderer      *cell,
1330                                       GdkEvent             *event,
1331                                       GtkWidget            *widget,
1332                                       gchar                *path,
1333                                       GdkRectangle         *background_area,
1334                                       GdkRectangle         *cell_area,
1335                                       GtkCellRendererState  flags)
1336 {
1337   GtkCellRendererText *celltext;
1338   GtkWidget *entry;
1339
1340   celltext = GTK_CELL_RENDERER_TEXT (cell);
1341
1342   /* If the cell isn't editable we return NULL. */
1343   if (celltext->editable == FALSE)
1344     return NULL;
1345
1346   entry = g_object_new (GTK_TYPE_ENTRY,
1347                         "has_frame", FALSE,
1348                         NULL);
1349
1350   gtk_entry_set_text (GTK_ENTRY (entry), celltext->text);
1351   g_object_set_data_full (G_OBJECT (entry), GTK_CELL_RENDERER_TEXT_PATH, g_strdup (path), g_free);
1352
1353   gtk_editable_select_region (GTK_EDITABLE (entry), 0, -1);
1354
1355   gtk_widget_show (entry);
1356   gtk_signal_connect (GTK_OBJECT (entry),
1357                       "editing_done",
1358                       G_CALLBACK (gtk_cell_renderer_text_editing_done),
1359                       celltext);
1360   return GTK_CELL_EDITABLE (entry);
1361
1362 }
1363
1364 /**
1365  * gtk_cell_renderer_text_set_fixed_height_from_font:
1366  * @renderer: A #GtkCellRendererText
1367  * @number_of_rows: Number of rows of text each cell renderer is allocated, or -1
1368  *
1369  * Sets the height of a renderer to explicitly be determined by the "font" and
1370  * "y_pad" property set on it.  Further changes in these properties do not
1371  * affect the height, so they must be accompanied by a subsequent call to this
1372  * function.  Using this function is unflexible, and should really only be used
1373  * if calculating the size of a cell is too slow (ie, a massive number of cells
1374  * displayed).  If @number_of_rows is -1, then the fixed height is unset, and
1375  * the height is determined by the properties again.
1376  **/
1377 void
1378 gtk_cell_renderer_text_set_fixed_height_from_font (GtkCellRendererText *renderer,
1379                                                    gint                 number_of_rows)
1380 {
1381   g_return_if_fail (GTK_IS_CELL_RENDERER_TEXT (renderer));
1382   g_return_if_fail (number_of_rows == -1 || number_of_rows > 0);
1383
1384   if (number_of_rows == -1)
1385     {
1386       gtk_cell_renderer_set_fixed_size (GTK_CELL_RENDERER (renderer),
1387                                         GTK_CELL_RENDERER (renderer)->width,
1388                                         -1);
1389     }
1390   else
1391     {
1392       renderer->fixed_height_rows = number_of_rows;
1393       renderer->calc_fixed_height = TRUE;
1394     }
1395 }