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

   1 /* gtkcellrenderertext.c
   2  * Copyright (C) 2000  Red Hat, Inc.,  Jonathan Blandford <jrb@redhat.com>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include <config.h>
  21 #include <stdlib.h>
  22 #include "gtkcellrenderertext.h"
  23 #include "gtkeditable.h"
  24 #include "gtkentry.h"
  25 #include "gtkmarshalers.h"
  26 #include "gtkintl.h"
  27 #include "gtkprivate.h"
  28 #include "gtktreeprivate.h"
  29 #include "gtkalias.h"
  30
  31 static void gtk_cell_renderer_text_finalize   (GObject                  *object);
  32
  33 static void gtk_cell_renderer_text_get_property  (GObject                  *object,
  34                                                   guint                     param_id,
  35                                                   GValue                   *value,
  36                                                   GParamSpec               *pspec);
  37 static void gtk_cell_renderer_text_set_property  (GObject                  *object,
  38                                                   guint                     param_id,
  39                                                   const GValue             *value,
  40                                                   GParamSpec               *pspec);
  41 static void gtk_cell_renderer_text_get_size   (GtkCellRenderer          *cell,
  42                                                GtkWidget                *widget,
  43                                                GdkRectangle             *cell_area,
  44                                                gint                     *x_offset,
  45                                                gint                     *y_offset,
  46                                                gint                     *width,
  47                                                gint                     *height);
  48 static void gtk_cell_renderer_text_render     (GtkCellRenderer          *cell,
  49                                                GdkWindow                *window,
  50                                                GtkWidget                *widget,
  51                                                GdkRectangle             *background_area,
  52                                                GdkRectangle             *cell_area,
  53                                                GdkRectangle             *expose_area,
  54                                                GtkCellRendererState      flags);
  55
  56 static GtkCellEditable *gtk_cell_renderer_text_start_editing (GtkCellRenderer      *cell,
  57                                                               GdkEvent             *event,
  58                                                               GtkWidget            *widget,
  59                                                               const gchar          *path,
  60                                                               GdkRectangle         *background_area,
  61                                                               GdkRectangle         *cell_area,
  62                                                               GtkCellRendererState  flags);
  63
  64 enum {
  65   EDITED,
  66   LAST_SIGNAL
  67 };
  68
  69 enum {
  70   PROP_0,
  71
  72   PROP_TEXT,
  73   PROP_MARKUP,
  74   PROP_ATTRIBUTES,
  75   PROP_SINGLE_PARAGRAPH_MODE,
  76   PROP_WIDTH_CHARS,
  77   PROP_WRAP_WIDTH,
  78   PROP_ALIGN,
  79
  80   /* Style args */
  81   PROP_BACKGROUND,
  82   PROP_FOREGROUND,
  83   PROP_BACKGROUND_GDK,
  84   PROP_FOREGROUND_GDK,
  85   PROP_FONT,
  86   PROP_FONT_DESC,
  87   PROP_FAMILY,
  88   PROP_STYLE,
  89   PROP_VARIANT,
  90   PROP_WEIGHT,
  91   PROP_STRETCH,
  92   PROP_SIZE,
  93   PROP_SIZE_POINTS,
  94   PROP_SCALE,
  95   PROP_EDITABLE,
  96   PROP_STRIKETHROUGH,
  97   PROP_UNDERLINE,
  98   PROP_RISE,
  99   PROP_LANGUAGE,
 100   PROP_ELLIPSIZE,
 101   PROP_WRAP_MODE,
 102
 103   /* Whether-a-style-arg-is-set args */
 104   PROP_BACKGROUND_SET,
 105   PROP_FOREGROUND_SET,
 106   PROP_FAMILY_SET,
 107   PROP_STYLE_SET,
 108   PROP_VARIANT_SET,
 109   PROP_WEIGHT_SET,
 110   PROP_STRETCH_SET,
 111   PROP_SIZE_SET,
 112   PROP_SCALE_SET,
 113   PROP_EDITABLE_SET,
 114   PROP_STRIKETHROUGH_SET,
 115   PROP_UNDERLINE_SET,
 116   PROP_RISE_SET,
 117   PROP_LANGUAGE_SET,
 118   PROP_ELLIPSIZE_SET,
 119   PROP_ALIGN_SET
 120 };
 121
 122 static guint text_cell_renderer_signals [LAST_SIGNAL];
 123
 124 #define GTK_CELL_RENDERER_TEXT_PATH "gtk-cell-renderer-text-path"
 125
 126 #define GTK_CELL_RENDERER_TEXT_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_CELL_RENDERER_TEXT, GtkCellRendererTextPrivate))
 127
 128 typedef struct _GtkCellRendererTextPrivate GtkCellRendererTextPrivate;
 129 struct _GtkCellRendererTextPrivate
 130 {
 131   guint single_paragraph : 1;
 132   guint language_set : 1;
 133   guint markup_set : 1;
 134   guint ellipsize_set : 1;
 135   guint align_set : 1;
 136
 137   gulong focus_out_id;
 138   PangoLanguage *language;
 139   PangoEllipsizeMode ellipsize;
 140   PangoWrapMode wrap_mode;
 141   PangoAlignment align;
 142
 143   gulong populate_popup_id;
 144   gulong entry_menu_popdown_timeout;
 145   gboolean in_entry_menu;
 146
 147   gint width_chars;
 148   gint wrap_width;
 149
 150   GtkWidget *entry;
 151 };
 152
 153 G_DEFINE_TYPE (GtkCellRendererText, gtk_cell_renderer_text, GTK_TYPE_CELL_RENDERER)
 154
 155 static void
 156 gtk_cell_renderer_text_init (GtkCellRendererText *celltext)
 157 {
 158   GtkCellRendererTextPrivate *priv;
 159
 160   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (celltext);
 161
 162   GTK_CELL_RENDERER (celltext)->xalign = 0.0;
 163   GTK_CELL_RENDERER (celltext)->yalign = 0.5;
 164   GTK_CELL_RENDERER (celltext)->xpad = 2;
 165   GTK_CELL_RENDERER (celltext)->ypad = 2;
 166   celltext->font_scale = 1.0;
 167   celltext->fixed_height_rows = -1;
 168   celltext->font = pango_font_description_new ();
 169
 170   priv->width_chars = -1;
 171   priv->wrap_width = -1;
 172   priv->wrap_mode = PANGO_WRAP_CHAR;
 173   priv->align = PANGO_ALIGN_LEFT;
 174   priv->align_set = FALSE;
 175 }
 176
 177 static void
 178 gtk_cell_renderer_text_class_init (GtkCellRendererTextClass *class)
 179 {
 180   GObjectClass *object_class = G_OBJECT_CLASS (class);
 181   GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (class);
 182
 183   object_class->finalize = gtk_cell_renderer_text_finalize;
 184
 185   object_class->get_property = gtk_cell_renderer_text_get_property;
 186   object_class->set_property = gtk_cell_renderer_text_set_property;
 187
 188   cell_class->get_size = gtk_cell_renderer_text_get_size;
 189   cell_class->render = gtk_cell_renderer_text_render;
 190   cell_class->start_editing = gtk_cell_renderer_text_start_editing;
 191
 192   g_object_class_install_property (object_class,
 193                                    PROP_TEXT,
 194                                    g_param_spec_string ("text",
 195                                                         P_("Text"),
 196                                                         P_("Text to render"),
 197                                                         NULL,
 198                                                         GTK_PARAM_READWRITE));
 199
 200   g_object_class_install_property (object_class,
 201                                    PROP_MARKUP,
 202                                    g_param_spec_string ("markup",
 203                                                         P_("Markup"),
 204                                                         P_("Marked up text to render"),
 205                                                         NULL,
 206                                                         GTK_PARAM_WRITABLE));
 207
 208   g_object_class_install_property (object_class,
 209                                    PROP_ATTRIBUTES,
 210                                    g_param_spec_boxed ("attributes",
 211                                                        P_("Attributes"),
 212                                                        P_("A list of style attributes to apply to the text of the renderer"),
 213                                                        PANGO_TYPE_ATTR_LIST,
 214                                                        GTK_PARAM_READWRITE));
 215
 216   g_object_class_install_property (object_class,
 217                                    PROP_SINGLE_PARAGRAPH_MODE,
 218                                    g_param_spec_boolean ("single-paragraph-mode",
 219                                                          P_("Single Paragraph Mode"),
 220                                                          P_("Whether or not to keep all text in a single paragraph"),
 221                                                          FALSE,
 222                                                          GTK_PARAM_READWRITE));
 223
 224
 225   g_object_class_install_property (object_class,
 226                                    PROP_BACKGROUND,
 227                                    g_param_spec_string ("background",
 228                                                         P_("Background color name"),
 229                                                         P_("Background color as a string"),
 230                                                         NULL,
 231                                                         GTK_PARAM_WRITABLE));
 232
 233   g_object_class_install_property (object_class,
 234                                    PROP_BACKGROUND_GDK,
 235                                    g_param_spec_boxed ("background-gdk",
 236                                                        P_("Background color"),
 237                                                        P_("Background color as a GdkColor"),
 238                                                        GDK_TYPE_COLOR,
 239                                                        GTK_PARAM_READWRITE));
 240
 241   g_object_class_install_property (object_class,
 242                                    PROP_FOREGROUND,
 243                                    g_param_spec_string ("foreground",
 244                                                         P_("Foreground color name"),
 245                                                         P_("Foreground color as a string"),
 246                                                         NULL,
 247                                                         GTK_PARAM_WRITABLE));
 248
 249   g_object_class_install_property (object_class,
 250                                    PROP_FOREGROUND_GDK,
 251                                    g_param_spec_boxed ("foreground-gdk",
 252                                                        P_("Foreground color"),
 253                                                        P_("Foreground color as a GdkColor"),
 254                                                        GDK_TYPE_COLOR,
 255                                                        GTK_PARAM_READWRITE));
 256
 257
 258   g_object_class_install_property (object_class,
 259                                    PROP_EDITABLE,
 260                                    g_param_spec_boolean ("editable",
 261                                                          P_("Editable"),
 262                                                          P_("Whether the text can be modified by the user"),
 263                                                          FALSE,
 264                                                          GTK_PARAM_READWRITE));
 265
 266   g_object_class_install_property (object_class,
 267                                    PROP_FONT,
 268                                    g_param_spec_string ("font",
 269                                                         P_("Font"),
 270                                                         P_("Font description as a string, e.g. \"Sans Italic 12\""),
 271                                                         NULL,
 272                                                         GTK_PARAM_READWRITE));
 273
 274   g_object_class_install_property (object_class,
 275                                    PROP_FONT_DESC,
 276                                    g_param_spec_boxed ("font-desc",
 277                                                        P_("Font"),
 278                                                        P_("Font description as a PangoFontDescription struct"),
 279                                                        PANGO_TYPE_FONT_DESCRIPTION,
 280                                                        GTK_PARAM_READWRITE));
 281
 282
 283   g_object_class_install_property (object_class,
 284                                    PROP_FAMILY,
 285                                    g_param_spec_string ("family",
 286                                                         P_("Font family"),
 287                                                         P_("Name of the font family, e.g. Sans, Helvetica, Times, Monospace"),
 288                                                         NULL,
 289                                                         GTK_PARAM_READWRITE));
 290
 291   g_object_class_install_property (object_class,
 292                                    PROP_STYLE,
 293                                    g_param_spec_enum ("style",
 294                                                       P_("Font style"),
 295                                                       P_("Font style"),
 296                                                       PANGO_TYPE_STYLE,
 297                                                       PANGO_STYLE_NORMAL,
 298                                                       GTK_PARAM_READWRITE));
 299
 300   g_object_class_install_property (object_class,
 301                                    PROP_VARIANT,
 302                                    g_param_spec_enum ("variant",
 303                                                      P_("Font variant"),
 304                                                      P_("Font variant"),
 305                                                       PANGO_TYPE_VARIANT,
 306                                                       PANGO_VARIANT_NORMAL,
 307                                                       GTK_PARAM_READWRITE));
 308
 309   g_object_class_install_property (object_class,
 310                                    PROP_WEIGHT,
 311                                    g_param_spec_int ("weight",
 312                                                      P_("Font weight"),
 313                                                      P_("Font weight"),
 314                                                      0,
 315                                                      G_MAXINT,
 316                                                      PANGO_WEIGHT_NORMAL,
 317                                                      GTK_PARAM_READWRITE));
 318
 319    g_object_class_install_property (object_class,
 320                                    PROP_STRETCH,
 321                                    g_param_spec_enum ("stretch",
 322                                                       P_("Font stretch"),
 323                                                       P_("Font stretch"),
 324                                                       PANGO_TYPE_STRETCH,
 325                                                       PANGO_STRETCH_NORMAL,
 326                                                       GTK_PARAM_READWRITE));
 327
 328   g_object_class_install_property (object_class,
 329                                    PROP_SIZE,
 330                                    g_param_spec_int ("size",
 331                                                      P_("Font size"),
 332                                                      P_("Font size"),
 333                                                      0,
 334                                                      G_MAXINT,
 335                                                      0,
 336                                                      GTK_PARAM_READWRITE));
 337
 338   g_object_class_install_property (object_class,
 339                                    PROP_SIZE_POINTS,
 340                                    g_param_spec_double ("size-points",
 341                                                         P_("Font points"),
 342                                                         P_("Font size in points"),
 343                                                         0.0,
 344                                                         G_MAXDOUBLE,
 345                                                         0.0,
 346                                                         GTK_PARAM_READWRITE));
 347
 348   g_object_class_install_property (object_class,
 349                                    PROP_SCALE,
 350                                    g_param_spec_double ("scale",
 351                                                         P_("Font scale"),
 352                                                         P_("Font scaling factor"),
 353                                                         0.0,
 354                                                         G_MAXDOUBLE,
 355                                                         1.0,
 356                                                         GTK_PARAM_READWRITE));
 357
 358   g_object_class_install_property (object_class,
 359                                    PROP_RISE,
 360                                    g_param_spec_int ("rise",
 361                                                      P_("Rise"),
 362                                                      P_("Offset of text above the baseline "
 363                                                         "(below the baseline if rise is negative)"),
 364                                                      -G_MAXINT,
 365                                                      G_MAXINT,
 366                                                      0,
 367                                                      GTK_PARAM_READWRITE));
 368
 369
 370   g_object_class_install_property (object_class,
 371                                    PROP_STRIKETHROUGH,
 372                                    g_param_spec_boolean ("strikethrough",
 373                                                          P_("Strikethrough"),
 374                                                          P_("Whether to strike through the text"),
 375                                                          FALSE,
 376                                                          GTK_PARAM_READWRITE));
 377
 378   g_object_class_install_property (object_class,
 379                                    PROP_UNDERLINE,
 380                                    g_param_spec_enum ("underline",
 381                                                       P_("Underline"),
 382                                                       P_("Style of underline for this text"),
 383                                                       PANGO_TYPE_UNDERLINE,
 384                                                       PANGO_UNDERLINE_NONE,
 385                                                       GTK_PARAM_READWRITE));
 386
 387   g_object_class_install_property (object_class,
 388                                    PROP_LANGUAGE,
 389                                    g_param_spec_string ("language",
 390                                                         P_("Language"),
 391                                                         P_("The language this text is in, as an ISO code. "
 392                                                            "Pango can use this as a hint when rendering the text. "
 393                                                            "If you don't understand this parameter, you probably don't need it"),
 394                                                         NULL,
 395                                                         GTK_PARAM_READWRITE));
 396
 397
 398   /**
 399    * GtkCellRendererText:ellipsize:
 400    *
 401    * Specifies the preferred place to ellipsize the string, if the cell renderer
 402    * does not have enough room to display the entire string. Setting it to
 403    * %PANGO_ELLIPSIZE_NONE turns off ellipsizing. See the wrap-width property
 404    * for another way of making the text fit into a given width.
 405    *
 406    * Since: 2.6
 407    */
 408   g_object_class_install_property (object_class,
 409                                    PROP_ELLIPSIZE,
 410                                    g_param_spec_enum ("ellipsize",
 411                                                       P_("Ellipsize"),
 412                                                       P_("The preferred place to ellipsize the string, "
 413                                                          "if the cell renderer does not have enough room "
 414                                                          "to display the entire string"),
 415                                                       PANGO_TYPE_ELLIPSIZE_MODE,
 416                                                       PANGO_ELLIPSIZE_NONE,
 417                                                       GTK_PARAM_READWRITE));
 418
 419   /**
 420    * GtkCellRendererText:width-chars:
 421    *
 422    * The desired width of the cell, in characters. If this property is set to
 423    * -1, the width will be calculated automatically, otherwise the cell will
 424    * request either 3 characters or the property value, whichever is greater.
 425    *
 426    * Since: 2.6
 427    **/
 428   g_object_class_install_property (object_class,
 429                                    PROP_WIDTH_CHARS,
 430                                    g_param_spec_int ("width-chars",
 431                                                      P_("Width In Characters"),
 432                                                      P_("The desired width of the label, in characters"),
 433                                                      -1,
 434                                                      G_MAXINT,
 435                                                      -1,
 436                                                      GTK_PARAM_READWRITE));
 437
 438   /**
 439    * GtkCellRendererText:wrap-mode:
 440    *
 441    * Specifies how to break the string into multiple lines, if the cell
 442    * renderer does not have enough room to display the entire string.
 443    * This property has no effect unless the wrap-width property is set.
 444    *
 445    * Since: 2.8
 446    */
 447   g_object_class_install_property (object_class,
 448                                    PROP_WRAP_MODE,
 449                                    g_param_spec_enum ("wrap-mode",
 450                                                       P_("Wrap mode"),
 451                                                       P_("How to break the string into multiple lines, "
 452                                                          "if the cell renderer does not have enough room "
 453                                                          "to display the entire string"),
 454                                                       PANGO_TYPE_WRAP_MODE,
 455                                                       PANGO_WRAP_CHAR,
 456                                                       GTK_PARAM_READWRITE));
 457
 458   /**
 459    * GtkCellRendererText:wrap-width:
 460    *
 461    * Specifies the width at which the text is wrapped. The wrap-mode property can
 462    * be used to influence at what character positions the line breaks can be placed.
 463    * Setting wrap-width to -1 turns wrapping off.
 464    *
 465    * Since: 2.8
 466    */
 467   g_object_class_install_property (object_class,
 468                                    PROP_WRAP_WIDTH,
 469                                    g_param_spec_int ("wrap-width",
 470                                                      P_("Wrap width"),
 471                                                      P_("The width at which the text is wrapped"),
 472                                                      -1,
 473                                                      G_MAXINT,
 474                                                      -1,
 475                                                      GTK_PARAM_READWRITE));
 476
 477   /**
 478    * GtkCellRendererText:alignment:
 479    *
 480    * Specifies how to align the lines of text with respect to each other.
 481    *
 482    * Note that this property describes how to align the lines of text in
 483    * case there are several of them. The "xalign" property of #GtkCellRenderer,
 484    * on the other hand, sets the horizontal alignment of the whole text.
 485    *
 486    * Since: 2.10
 487    */
 488   g_object_class_install_property (object_class,
 489                                    PROP_ALIGN,
 490                                    g_param_spec_enum ("alignment",
 491                                                       P_("Alignment"),
 492                                                       P_("How to align the lines"),
 493                                                       PANGO_TYPE_ALIGNMENT,
 494                                                       PANGO_ALIGN_LEFT,
 495                                                       GTK_PARAM_READWRITE));
 496
 497   /* Style props are set or not */
 498
 499 #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))
 500
 501   ADD_SET_PROP ("background-set", PROP_BACKGROUND_SET,
 502                 P_("Background set"),
 503                 P_("Whether this tag affects the background color"));
 504
 505   ADD_SET_PROP ("foreground-set", PROP_FOREGROUND_SET,
 506                 P_("Foreground set"),
 507                 P_("Whether this tag affects the foreground color"));
 508
 509   ADD_SET_PROP ("editable-set", PROP_EDITABLE_SET,
 510                 P_("Editability set"),
 511                 P_("Whether this tag affects text editability"));
 512
 513   ADD_SET_PROP ("family-set", PROP_FAMILY_SET,
 514                 P_("Font family set"),
 515                 P_("Whether this tag affects the font family"));
 516
 517   ADD_SET_PROP ("style-set", PROP_STYLE_SET,
 518                 P_("Font style set"),
 519                 P_("Whether this tag affects the font style"));
 520
 521   ADD_SET_PROP ("variant-set", PROP_VARIANT_SET,
 522                 P_("Font variant set"),
 523                 P_("Whether this tag affects the font variant"));
 524
 525   ADD_SET_PROP ("weight-set", PROP_WEIGHT_SET,
 526                 P_("Font weight set"),
 527                 P_("Whether this tag affects the font weight"));
 528
 529   ADD_SET_PROP ("stretch-set", PROP_STRETCH_SET,
 530                 P_("Font stretch set"),
 531                 P_("Whether this tag affects the font stretch"));
 532
 533   ADD_SET_PROP ("size-set", PROP_SIZE_SET,
 534                 P_("Font size set"),
 535                 P_("Whether this tag affects the font size"));
 536
 537   ADD_SET_PROP ("scale-set", PROP_SCALE_SET,
 538                 P_("Font scale set"),
 539                 P_("Whether this tag scales the font size by a factor"));
 540
 541   ADD_SET_PROP ("rise-set", PROP_RISE_SET,
 542                 P_("Rise set"),
 543                 P_("Whether this tag affects the rise"));
 544
 545   ADD_SET_PROP ("strikethrough-set", PROP_STRIKETHROUGH_SET,
 546                 P_("Strikethrough set"),
 547                 P_("Whether this tag affects strikethrough"));
 548
 549   ADD_SET_PROP ("underline-set", PROP_UNDERLINE_SET,
 550                 P_("Underline set"),
 551                 P_("Whether this tag affects underlining"));
 552
 553   ADD_SET_PROP ("language-set", PROP_LANGUAGE_SET,
 554                 P_("Language set"),
 555                 P_("Whether this tag affects the language the text is rendered as"));
 556
 557   ADD_SET_PROP ("ellipsize-set", PROP_ELLIPSIZE_SET,
 558                 P_("Ellipsize set"),
 559                 P_("Whether this tag affects the ellipsize mode"));
 560
 561   ADD_SET_PROP ("align-set", PROP_ALIGN_SET,
 562                 P_("Align set"),
 563                 P_("Whether this tag affects the alignment mode"));
 564
 565   /**
 566    * GtkCellRendererText::edited
 567    * @renderer: the object which received the signal
 568    * @path: the path identifying the edited cell
 569    * @new_text: the new text
 570    *
 571    * This signal is emitted after @renderer has been edited.
 572    *
 573    * It is the responsibility of the application to update the model
 574    * and store @new_text at the position indicated by @path.
 575    */
 576   text_cell_renderer_signals [EDITED] =
 577     g_signal_new (I_("edited"),
 578                   G_OBJECT_CLASS_TYPE (object_class),
 579                   G_SIGNAL_RUN_LAST,
 580                   G_STRUCT_OFFSET (GtkCellRendererTextClass, edited),
 581                   NULL, NULL,
 582                   _gtk_marshal_VOID__STRING_STRING,
 583                   G_TYPE_NONE, 2,
 584                   G_TYPE_STRING,
 585                   G_TYPE_STRING);
 586
 587   g_type_class_add_private (object_class, sizeof (GtkCellRendererTextPrivate));
 588 }
 589
 590 static void
 591 gtk_cell_renderer_text_finalize (GObject *object)
 592 {
 593   GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (object);
 594   GtkCellRendererTextPrivate *priv;
 595
 596   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (object);
 597
 598   pango_font_description_free (celltext->font);
 599
 600   g_free (celltext->text);
 601
 602   if (celltext->extra_attrs)
 603     pango_attr_list_unref (celltext->extra_attrs);
 604
 605   if (priv->language)
 606     g_object_unref (priv->language);
 607
 608   (* G_OBJECT_CLASS (gtk_cell_renderer_text_parent_class)->finalize) (object);
 609 }
 610
 611 static PangoFontMask
 612 get_property_font_set_mask (guint prop_id)
 613 {
 614   switch (prop_id)
 615     {
 616     case PROP_FAMILY_SET:
 617       return PANGO_FONT_MASK_FAMILY;
 618     case PROP_STYLE_SET:
 619       return PANGO_FONT_MASK_STYLE;
 620     case PROP_VARIANT_SET:
 621       return PANGO_FONT_MASK_VARIANT;
 622     case PROP_WEIGHT_SET:
 623       return PANGO_FONT_MASK_WEIGHT;
 624     case PROP_STRETCH_SET:
 625       return PANGO_FONT_MASK_STRETCH;
 626     case PROP_SIZE_SET:
 627       return PANGO_FONT_MASK_SIZE;
 628     }
 629
 630   return 0;
 631 }
 632
 633 static void
 634 gtk_cell_renderer_text_get_property (GObject        *object,
 635                                      guint           param_id,
 636                                      GValue         *value,
 637                                      GParamSpec     *pspec)
 638 {
 639   GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (object);
 640   GtkCellRendererTextPrivate *priv;
 641
 642   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (object);
 643
 644   switch (param_id)
 645     {
 646     case PROP_TEXT:
 647       g_value_set_string (value, celltext->text);
 648       break;
 649
 650     case PROP_ATTRIBUTES:
 651       g_value_set_boxed (value, celltext->extra_attrs);
 652       break;
 653
 654     case PROP_SINGLE_PARAGRAPH_MODE:
 655       g_value_set_boolean (value, priv->single_paragraph);
 656       break;
 657
 658     case PROP_BACKGROUND_GDK:
 659       {
 660         GdkColor color;
 661
 662         color.red = celltext->background.red;
 663         color.green = celltext->background.green;
 664         color.blue = celltext->background.blue;
 665
 666         g_value_set_boxed (value, &color);
 667       }
 668       break;
 669
 670     case PROP_FOREGROUND_GDK:
 671       {
 672         GdkColor color;
 673
 674         color.red = celltext->foreground.red;
 675         color.green = celltext->foreground.green;
 676         color.blue = celltext->foreground.blue;
 677
 678         g_value_set_boxed (value, &color);
 679       }
 680       break;
 681
 682     case PROP_FONT:
 683         g_value_take_string (value, pango_font_description_to_string (celltext->font));
 684       break;
 685
 686     case PROP_FONT_DESC:
 687       g_value_set_boxed (value, celltext->font);
 688       break;
 689
 690     case PROP_FAMILY:
 691       g_value_set_string (value, pango_font_description_get_family (celltext->font));
 692       break;
 693
 694     case PROP_STYLE:
 695       g_value_set_enum (value, pango_font_description_get_style (celltext->font));
 696       break;
 697
 698     case PROP_VARIANT:
 699       g_value_set_enum (value, pango_font_description_get_variant (celltext->font));
 700       break;
 701
 702     case PROP_WEIGHT:
 703       g_value_set_int (value, pango_font_description_get_weight (celltext->font));
 704       break;
 705
 706     case PROP_STRETCH:
 707       g_value_set_enum (value, pango_font_description_get_stretch (celltext->font));
 708       break;
 709
 710     case PROP_SIZE:
 711       g_value_set_int (value, pango_font_description_get_size (celltext->font));
 712       break;
 713
 714     case PROP_SIZE_POINTS:
 715       g_value_set_double (value, ((double)pango_font_description_get_size (celltext->font)) / (double)PANGO_SCALE);
 716       break;
 717
 718     case PROP_SCALE:
 719       g_value_set_double (value, celltext->font_scale);
 720       break;
 721
 722     case PROP_EDITABLE:
 723       g_value_set_boolean (value, celltext->editable);
 724       break;
 725
 726     case PROP_STRIKETHROUGH:
 727       g_value_set_boolean (value, celltext->strikethrough);
 728       break;
 729
 730     case PROP_UNDERLINE:
 731       g_value_set_enum (value, celltext->underline_style);
 732       break;
 733
 734     case PROP_RISE:
 735       g_value_set_int (value, celltext->rise);
 736       break;
 737
 738     case PROP_LANGUAGE:
 739       g_value_set_static_string (value, pango_language_to_string (priv->language));
 740       break;
 741
 742     case PROP_ELLIPSIZE:
 743       g_value_set_enum (value, priv->ellipsize);
 744       break;
 745
 746     case PROP_WRAP_MODE:
 747       g_value_set_enum (value, priv->wrap_mode);
 748       break;
 749
 750     case PROP_WRAP_WIDTH:
 751       g_value_set_int (value, priv->wrap_width);
 752       break;
 753
 754     case PROP_ALIGN:
 755       g_value_set_enum (value, priv->align);
 756       break;
 757
 758     case PROP_BACKGROUND_SET:
 759       g_value_set_boolean (value, celltext->background_set);
 760       break;
 761
 762     case PROP_FOREGROUND_SET:
 763       g_value_set_boolean (value, celltext->foreground_set);
 764       break;
 765
 766     case PROP_FAMILY_SET:
 767     case PROP_STYLE_SET:
 768     case PROP_VARIANT_SET:
 769     case PROP_WEIGHT_SET:
 770     case PROP_STRETCH_SET:
 771     case PROP_SIZE_SET:
 772       {
 773         PangoFontMask mask = get_property_font_set_mask (param_id);
 774         g_value_set_boolean (value, (pango_font_description_get_set_fields (celltext->font) & mask) != 0);
 775
 776         break;
 777       }
 778
 779     case PROP_SCALE_SET:
 780       g_value_set_boolean (value, celltext->scale_set);
 781       break;
 782
 783     case PROP_EDITABLE_SET:
 784       g_value_set_boolean (value, celltext->editable_set);
 785       break;
 786
 787     case PROP_STRIKETHROUGH_SET:
 788       g_value_set_boolean (value, celltext->strikethrough_set);
 789       break;
 790
 791     case PROP_UNDERLINE_SET:
 792       g_value_set_boolean (value, celltext->underline_set);
 793       break;
 794
 795     case  PROP_RISE_SET:
 796       g_value_set_boolean (value, celltext->rise_set);
 797       break;
 798
 799     case PROP_LANGUAGE_SET:
 800       g_value_set_boolean (value, priv->language_set);
 801       break;
 802
 803     case PROP_ELLIPSIZE_SET:
 804       g_value_set_boolean (value, priv->ellipsize_set);
 805       break;
 806
 807     case PROP_ALIGN_SET:
 808       g_value_set_boolean (value, priv->align_set);
 809       break;
 810
 811     case PROP_WIDTH_CHARS:
 812       g_value_set_int (value, priv->width_chars);
 813       break;
 814
 815     case PROP_BACKGROUND:
 816     case PROP_FOREGROUND:
 817     case PROP_MARKUP:
 818     default:
 819       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 820       break;
 821     }
 822 }
 823
 824
 825 static void
 826 set_bg_color (GtkCellRendererText *celltext,
 827               GdkColor            *color)
 828 {
 829   if (color)
 830     {
 831       if (!celltext->background_set)
 832         {
 833           celltext->background_set = TRUE;
 834           g_object_notify (G_OBJECT (celltext), "background-set");
 835         }
 836
 837       celltext->background.red = color->red;
 838       celltext->background.green = color->green;
 839       celltext->background.blue = color->blue;
 840     }
 841   else
 842     {
 843       if (celltext->background_set)
 844         {
 845           celltext->background_set = FALSE;
 846           g_object_notify (G_OBJECT (celltext), "background-set");
 847         }
 848     }
 849 }
 850
 851
 852 static void
 853 set_fg_color (GtkCellRendererText *celltext,
 854               GdkColor            *color)
 855 {
 856   if (color)
 857     {
 858       if (!celltext->foreground_set)
 859         {
 860           celltext->foreground_set = TRUE;
 861           g_object_notify (G_OBJECT (celltext), "foreground-set");
 862         }
 863
 864       celltext->foreground.red = color->red;
 865       celltext->foreground.green = color->green;
 866       celltext->foreground.blue = color->blue;
 867     }
 868   else
 869     {
 870       if (celltext->foreground_set)
 871         {
 872           celltext->foreground_set = FALSE;
 873           g_object_notify (G_OBJECT (celltext), "foreground-set");
 874         }
 875     }
 876 }
 877
 878 static PangoFontMask
 879 set_font_desc_fields (PangoFontDescription *desc,
 880                       PangoFontMask         to_set)
 881 {
 882   PangoFontMask changed_mask = 0;
 883
 884   if (to_set & PANGO_FONT_MASK_FAMILY)
 885     {
 886       const char *family = pango_font_description_get_family (desc);
 887       if (!family)
 888         {
 889           family = "sans";
 890           changed_mask |= PANGO_FONT_MASK_FAMILY;
 891         }
 892
 893       pango_font_description_set_family (desc, family);
 894     }
 895   if (to_set & PANGO_FONT_MASK_STYLE)
 896     pango_font_description_set_style (desc, pango_font_description_get_style (desc));
 897   if (to_set & PANGO_FONT_MASK_VARIANT)
 898     pango_font_description_set_variant (desc, pango_font_description_get_variant (desc));
 899   if (to_set & PANGO_FONT_MASK_WEIGHT)
 900     pango_font_description_set_weight (desc, pango_font_description_get_weight (desc));
 901   if (to_set & PANGO_FONT_MASK_STRETCH)
 902     pango_font_description_set_stretch (desc, pango_font_description_get_stretch (desc));
 903   if (to_set & PANGO_FONT_MASK_SIZE)
 904     {
 905       gint size = pango_font_description_get_size (desc);
 906       if (size <= 0)
 907         {
 908           size = 10 * PANGO_SCALE;
 909           changed_mask |= PANGO_FONT_MASK_SIZE;
 910         }
 911
 912       pango_font_description_set_size (desc, size);
 913     }
 914
 915   return changed_mask;
 916 }
 917
 918 static void
 919 notify_set_changed (GObject       *object,
 920                     PangoFontMask  changed_mask)
 921 {
 922   if (changed_mask & PANGO_FONT_MASK_FAMILY)
 923     g_object_notify (object, "family-set");
 924   if (changed_mask & PANGO_FONT_MASK_STYLE)
 925     g_object_notify (object, "style-set");
 926   if (changed_mask & PANGO_FONT_MASK_VARIANT)
 927     g_object_notify (object, "variant-set");
 928   if (changed_mask & PANGO_FONT_MASK_WEIGHT)
 929     g_object_notify (object, "weight-set");
 930   if (changed_mask & PANGO_FONT_MASK_STRETCH)
 931     g_object_notify (object, "stretch-set");
 932   if (changed_mask & PANGO_FONT_MASK_SIZE)
 933     g_object_notify (object, "size-set");
 934 }
 935
 936 static void
 937 notify_fields_changed (GObject       *object,
 938                        PangoFontMask  changed_mask)
 939 {
 940   if (changed_mask & PANGO_FONT_MASK_FAMILY)
 941     g_object_notify (object, "family");
 942   if (changed_mask & PANGO_FONT_MASK_STYLE)
 943     g_object_notify (object, "style");
 944   if (changed_mask & PANGO_FONT_MASK_VARIANT)
 945     g_object_notify (object, "variant");
 946   if (changed_mask & PANGO_FONT_MASK_WEIGHT)
 947     g_object_notify (object, "weight");
 948   if (changed_mask & PANGO_FONT_MASK_STRETCH)
 949     g_object_notify (object, "stretch");
 950   if (changed_mask & PANGO_FONT_MASK_SIZE)
 951     g_object_notify (object, "size");
 952 }
 953
 954 static void
 955 set_font_description (GtkCellRendererText  *celltext,
 956                       PangoFontDescription *font_desc)
 957 {
 958   GObject *object = G_OBJECT (celltext);
 959   PangoFontDescription *new_font_desc;
 960   PangoFontMask old_mask, new_mask, changed_mask, set_changed_mask;
 961
 962   if (font_desc)
 963     new_font_desc = pango_font_description_copy (font_desc);
 964   else
 965     new_font_desc = pango_font_description_new ();
 966
 967   old_mask = pango_font_description_get_set_fields (celltext->font);
 968   new_mask = pango_font_description_get_set_fields (new_font_desc);
 969
 970   changed_mask = old_mask | new_mask;
 971   set_changed_mask = old_mask ^ new_mask;
 972
 973   pango_font_description_free (celltext->font);
 974   celltext->font = new_font_desc;
 975
 976   g_object_freeze_notify (object);
 977
 978   g_object_notify (object, "font-desc");
 979   g_object_notify (object, "font");
 980
 981   if (changed_mask & PANGO_FONT_MASK_FAMILY)
 982     g_object_notify (object, "family");
 983   if (changed_mask & PANGO_FONT_MASK_STYLE)
 984     g_object_notify (object, "style");
 985   if (changed_mask & PANGO_FONT_MASK_VARIANT)
 986     g_object_notify (object, "variant");
 987   if (changed_mask & PANGO_FONT_MASK_WEIGHT)
 988     g_object_notify (object, "weight");
 989   if (changed_mask & PANGO_FONT_MASK_STRETCH)
 990     g_object_notify (object, "stretch");
 991   if (changed_mask & PANGO_FONT_MASK_SIZE)
 992     {
 993       g_object_notify (object, "size");
 994       g_object_notify (object, "size-points");
 995     }
 996
 997   notify_set_changed (object, set_changed_mask);
 998
 999   g_object_thaw_notify (object);
1000 }
1001
1002 static void
1003 gtk_cell_renderer_text_set_property (GObject      *object,
1004                                      guint         param_id,
1005                                      const GValue *value,
1006                                      GParamSpec   *pspec)
1007 {
1008   GtkCellRendererText *celltext = GTK_CELL_RENDERER_TEXT (object);
1009   GtkCellRendererTextPrivate *priv;
1010
1011   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (object);
1012
1013   switch (param_id)
1014     {
1015     case PROP_TEXT:
1016       g_free (celltext->text);
1017
1018       if (priv->markup_set)
1019         {
1020           if (celltext->extra_attrs)
1021             pango_attr_list_unref (celltext->extra_attrs);
1022           celltext->extra_attrs = NULL;
1023           priv->markup_set = FALSE;
1024         }
1025
1026       celltext->text = g_strdup (g_value_get_string (value));
1027       g_object_notify (object, "text");
1028       break;
1029
1030     case PROP_ATTRIBUTES:
1031       if (celltext->extra_attrs)
1032         pango_attr_list_unref (celltext->extra_attrs);
1033
1034       celltext->extra_attrs = g_value_get_boxed (value);
1035       if (celltext->extra_attrs)
1036         pango_attr_list_ref (celltext->extra_attrs);
1037       break;
1038     case PROP_MARKUP:
1039       {
1040         const gchar *str;
1041         gchar *text = NULL;
1042         GError *error = NULL;
1043         PangoAttrList *attrs = NULL;
1044
1045         str = g_value_get_string (value);
1046         if (str && !pango_parse_markup (str,
1047                                         -1,
1048                                         0,
1049                                         &attrs,
1050                                         &text,
1051                                         NULL,
1052                                         &error))
1053           {
1054             g_warning ("Failed to set text from markup due to error parsing markup: %s",
1055                        error->message);
1056             g_error_free (error);
1057             return;
1058           }
1059
1060         g_free (celltext->text);
1061
1062         if (celltext->extra_attrs)
1063           pango_attr_list_unref (celltext->extra_attrs);
1064
1065         celltext->text = text;
1066         celltext->extra_attrs = attrs;
1067         priv->markup_set = TRUE;
1068       }
1069       break;
1070
1071     case PROP_SINGLE_PARAGRAPH_MODE:
1072       priv->single_paragraph = g_value_get_boolean (value);
1073       break;
1074
1075     case PROP_BACKGROUND:
1076       {
1077         GdkColor color;
1078
1079         if (!g_value_get_string (value))
1080           set_bg_color (celltext, NULL);       /* reset to background_set to FALSE */
1081         else if (gdk_color_parse (g_value_get_string (value), &color))
1082           set_bg_color (celltext, &color);
1083         else
1084           g_warning ("Don't know color `%s'", g_value_get_string (value));
1085
1086         g_object_notify (object, "background-gdk");
1087       }
1088       break;
1089
1090     case PROP_FOREGROUND:
1091       {
1092         GdkColor color;
1093
1094         if (!g_value_get_string (value))
1095           set_fg_color (celltext, NULL);       /* reset to foreground_set to FALSE */
1096         else if (gdk_color_parse (g_value_get_string (value), &color))
1097           set_fg_color (celltext, &color);
1098         else
1099           g_warning ("Don't know color `%s'", g_value_get_string (value));
1100
1101         g_object_notify (object, "foreground-gdk");
1102       }
1103       break;
1104
1105     case PROP_BACKGROUND_GDK:
1106       /* This notifies the GObject itself. */
1107       set_bg_color (celltext, g_value_get_boxed (value));
1108       break;
1109
1110     case PROP_FOREGROUND_GDK:
1111       /* This notifies the GObject itself. */
1112       set_fg_color (celltext, g_value_get_boxed (value));
1113       break;
1114
1115     case PROP_FONT:
1116       {
1117         PangoFontDescription *font_desc = NULL;
1118         const gchar *name;
1119
1120         name = g_value_get_string (value);
1121
1122         if (name)
1123           font_desc = pango_font_description_from_string (name);
1124
1125         set_font_description (celltext, font_desc);
1126
1127         pango_font_description_free (font_desc);
1128
1129         if (celltext->fixed_height_rows != -1)
1130           celltext->calc_fixed_height = TRUE;
1131       }
1132       break;
1133
1134     case PROP_FONT_DESC:
1135       set_font_description (celltext, g_value_get_boxed (value));
1136
1137       if (celltext->fixed_height_rows != -1)
1138         celltext->calc_fixed_height = TRUE;
1139       break;
1140
1141     case PROP_FAMILY:
1142     case PROP_STYLE:
1143     case PROP_VARIANT:
1144     case PROP_WEIGHT:
1145     case PROP_STRETCH:
1146     case PROP_SIZE:
1147     case PROP_SIZE_POINTS:
1148       {
1149         PangoFontMask old_set_mask = pango_font_description_get_set_fields (celltext->font);
1150
1151         switch (param_id)
1152           {
1153           case PROP_FAMILY:
1154             pango_font_description_set_family (celltext->font,
1155                                                g_value_get_string (value));
1156             break;
1157           case PROP_STYLE:
1158             pango_font_description_set_style (celltext->font,
1159                                               g_value_get_enum (value));
1160             break;
1161           case PROP_VARIANT:
1162             pango_font_description_set_variant (celltext->font,
1163                                                 g_value_get_enum (value));
1164             break;
1165           case PROP_WEIGHT:
1166             pango_font_description_set_weight (celltext->font,
1167                                                g_value_get_int (value));
1168             break;
1169           case PROP_STRETCH:
1170             pango_font_description_set_stretch (celltext->font,
1171                                                 g_value_get_enum (value));
1172             break;
1173           case PROP_SIZE:
1174             pango_font_description_set_size (celltext->font,
1175                                              g_value_get_int (value));
1176             g_object_notify (object, "size-points");
1177             break;
1178           case PROP_SIZE_POINTS:
1179             pango_font_description_set_size (celltext->font,
1180                                              g_value_get_double (value) * PANGO_SCALE);
1181             g_object_notify (object, "size");
1182             break;
1183           }
1184
1185         if (celltext->fixed_height_rows != -1)
1186           celltext->calc_fixed_height = TRUE;
1187
1188         notify_set_changed (object, old_set_mask & pango_font_description_get_set_fields (celltext->font));
1189         g_object_notify (object, "font-desc");
1190         g_object_notify (object, "font");
1191
1192         break;
1193       }
1194
1195     case PROP_SCALE:
1196       celltext->font_scale = g_value_get_double (value);
1197       celltext->scale_set = TRUE;
1198       if (celltext->fixed_height_rows != -1)
1199         celltext->calc_fixed_height = TRUE;
1200       g_object_notify (object, "scale-set");
1201       break;
1202
1203     case PROP_EDITABLE:
1204       celltext->editable = g_value_get_boolean (value);
1205       celltext->editable_set = TRUE;
1206       if (celltext->editable)
1207         GTK_CELL_RENDERER (celltext)->mode = GTK_CELL_RENDERER_MODE_EDITABLE;
1208       else
1209         GTK_CELL_RENDERER (celltext)->mode = GTK_CELL_RENDERER_MODE_INERT;
1210       g_object_notify (object, "editable-set");
1211       break;
1212
1213     case PROP_STRIKETHROUGH:
1214       celltext->strikethrough = g_value_get_boolean (value);
1215       celltext->strikethrough_set = TRUE;
1216       g_object_notify (object, "strikethrough-set");
1217       break;
1218
1219     case PROP_UNDERLINE:
1220       celltext->underline_style = g_value_get_enum (value);
1221       celltext->underline_set = TRUE;
1222       g_object_notify (object, "underline-set");
1223
1224       break;
1225
1226     case PROP_RISE:
1227       celltext->rise = g_value_get_int (value);
1228       celltext->rise_set = TRUE;
1229       g_object_notify (object, "rise-set");
1230       if (celltext->fixed_height_rows != -1)
1231         celltext->calc_fixed_height = TRUE;
1232       break;
1233
1234     case PROP_LANGUAGE:
1235       priv->language_set = TRUE;
1236       if (priv->language)
1237         g_object_unref (priv->language);
1238       priv->language = pango_language_from_string (g_value_get_string (value));
1239       g_object_notify (object, "language-set");
1240       break;
1241
1242     case PROP_ELLIPSIZE:
1243       priv->ellipsize = g_value_get_enum (value);
1244       priv->ellipsize_set = TRUE;
1245       g_object_notify (object, "ellipsize-set");
1246       break;
1247
1248     case PROP_WRAP_MODE:
1249       priv->wrap_mode = g_value_get_enum (value);
1250       break;
1251
1252     case PROP_WRAP_WIDTH:
1253       priv->wrap_width = g_value_get_int (value);
1254       break;
1255
1256     case PROP_WIDTH_CHARS:
1257       priv->width_chars = g_value_get_int (value);
1258       break;
1259
1260     case PROP_ALIGN:
1261       priv->align = g_value_get_enum (value);
1262       priv->align_set = TRUE;
1263       g_object_notify (object, "align-set");
1264       break;
1265
1266     case PROP_BACKGROUND_SET:
1267       celltext->background_set = g_value_get_boolean (value);
1268       break;
1269
1270     case PROP_FOREGROUND_SET:
1271       celltext->foreground_set = g_value_get_boolean (value);
1272       break;
1273
1274     case PROP_FAMILY_SET:
1275     case PROP_STYLE_SET:
1276     case PROP_VARIANT_SET:
1277     case PROP_WEIGHT_SET:
1278     case PROP_STRETCH_SET:
1279     case PROP_SIZE_SET:
1280       if (!g_value_get_boolean (value))
1281         {
1282           pango_font_description_unset_fields (celltext->font,
1283                                                get_property_font_set_mask (param_id));
1284         }
1285       else
1286         {
1287           PangoFontMask changed_mask;
1288
1289           changed_mask = set_font_desc_fields (celltext->font,
1290                                                get_property_font_set_mask (param_id));
1291           notify_fields_changed (G_OBJECT (celltext), changed_mask);
1292         }
1293       break;
1294
1295     case PROP_SCALE_SET:
1296       celltext->scale_set = g_value_get_boolean (value);
1297       break;
1298
1299     case PROP_EDITABLE_SET:
1300       celltext->editable_set = g_value_get_boolean (value);
1301       break;
1302
1303     case PROP_STRIKETHROUGH_SET:
1304       celltext->strikethrough_set = g_value_get_boolean (value);
1305       break;
1306
1307     case PROP_UNDERLINE_SET:
1308       celltext->underline_set = g_value_get_boolean (value);
1309       break;
1310
1311     case PROP_RISE_SET:
1312       celltext->rise_set = g_value_get_boolean (value);
1313       break;
1314
1315     case PROP_LANGUAGE_SET:
1316       priv->language_set = g_value_get_boolean (value);
1317       break;
1318
1319     case PROP_ELLIPSIZE_SET:
1320       priv->ellipsize_set = g_value_get_boolean (value);
1321       break;
1322
1323     case PROP_ALIGN_SET:
1324       priv->align_set = g_value_get_boolean (value);
1325       break;
1326
1327     default:
1328       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
1329       break;
1330     }
1331 }
1332
1333 /**
1334  * gtk_cell_renderer_text_new:
1335  *
1336  * Creates a new #GtkCellRendererText. Adjust how text is drawn using
1337  * object properties. Object properties can be
1338  * set globally (with g_object_set()). Also, with #GtkTreeViewColumn,
1339  * you can bind a property to a value in a #GtkTreeModel. For example,
1340  * you can bind the "text" property on the cell renderer to a string
1341  * value in the model, thus rendering a different string in each row
1342  * of the #GtkTreeView
1343  *
1344  * Return value: the new cell renderer
1345  **/
1346 GtkCellRenderer *
1347 gtk_cell_renderer_text_new (void)
1348 {
1349   return g_object_new (GTK_TYPE_CELL_RENDERER_TEXT, NULL);
1350 }
1351
1352 static void
1353 add_attr (PangoAttrList  *attr_list,
1354           PangoAttribute *attr)
1355 {
1356   attr->start_index = 0;
1357   attr->end_index = G_MAXINT;
1358
1359   pango_attr_list_insert (attr_list, attr);
1360 }
1361
1362 static PangoLayout*
1363 get_layout (GtkCellRendererText *celltext,
1364             GtkWidget           *widget,
1365             gboolean             will_render,
1366             GtkCellRendererState flags)
1367 {
1368   PangoAttrList *attr_list;
1369   PangoLayout *layout;
1370   PangoUnderline uline;
1371   GtkCellRendererTextPrivate *priv;
1372
1373   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (celltext);
1374
1375   layout = gtk_widget_create_pango_layout (widget, celltext->text);
1376
1377   if (celltext->extra_attrs)
1378     attr_list = pango_attr_list_copy (celltext->extra_attrs);
1379   else
1380     attr_list = pango_attr_list_new ();
1381
1382   pango_layout_set_single_paragraph_mode (layout, priv->single_paragraph);
1383
1384   if (will_render)
1385     {
1386       /* Add options that affect appearance but not size */
1387
1388       /* note that background doesn't go here, since it affects
1389        * background_area not the PangoLayout area
1390        */
1391
1392       if (celltext->foreground_set
1393           && (flags & GTK_CELL_RENDERER_SELECTED) == 0)
1394         {
1395           PangoColor color;
1396
1397           color = celltext->foreground;
1398
1399           add_attr (attr_list,
1400                     pango_attr_foreground_new (color.red, color.green, color.blue));
1401         }
1402
1403       if (celltext->strikethrough_set)
1404         add_attr (attr_list,
1405                   pango_attr_strikethrough_new (celltext->strikethrough));
1406     }
1407
1408   add_attr (attr_list, pango_attr_font_desc_new (celltext->font));
1409
1410   if (celltext->scale_set &&
1411       celltext->font_scale != 1.0)
1412     add_attr (attr_list, pango_attr_scale_new (celltext->font_scale));
1413
1414   if (celltext->underline_set)
1415     uline = celltext->underline_style;
1416   else
1417     uline = PANGO_UNDERLINE_NONE;
1418
1419   if (priv->language_set)
1420     add_attr (attr_list, pango_attr_language_new (priv->language));
1421
1422   if ((flags & GTK_CELL_RENDERER_PRELIT) == GTK_CELL_RENDERER_PRELIT)
1423     {
1424       switch (uline)
1425         {
1426         case PANGO_UNDERLINE_NONE:
1427           uline = PANGO_UNDERLINE_SINGLE;
1428           break;
1429
1430         case PANGO_UNDERLINE_SINGLE:
1431           uline = PANGO_UNDERLINE_DOUBLE;
1432           break;
1433
1434         default:
1435           break;
1436         }
1437     }
1438
1439   if (uline != PANGO_UNDERLINE_NONE)
1440     add_attr (attr_list, pango_attr_underline_new (celltext->underline_style));
1441
1442   if (celltext->rise_set)
1443     add_attr (attr_list, pango_attr_rise_new (celltext->rise));
1444
1445   if (priv->ellipsize_set)
1446     pango_layout_set_ellipsize (layout, priv->ellipsize);
1447   else
1448     pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_NONE);
1449
1450   if (priv->wrap_width != -1)
1451     {
1452       pango_layout_set_width (layout, priv->wrap_width * PANGO_SCALE);
1453       pango_layout_set_wrap (layout, priv->wrap_mode);
1454     }
1455   else
1456     {
1457       pango_layout_set_width (layout, -1);
1458       pango_layout_set_wrap (layout, PANGO_WRAP_CHAR);
1459     }
1460
1461   if (priv->align_set)
1462     pango_layout_set_alignment (layout, priv->align);
1463   else
1464     {
1465       PangoAlignment align;
1466
1467       if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
1468         align = PANGO_ALIGN_RIGHT;
1469       else
1470         align = PANGO_ALIGN_LEFT;
1471
1472       pango_layout_set_alignment (layout, align);
1473     }
1474
1475   pango_layout_set_attributes (layout, attr_list);
1476
1477   pango_attr_list_unref (attr_list);
1478
1479   return layout;
1480 }
1481
1482 static void
1483 get_size (GtkCellRenderer *cell,
1484           GtkWidget       *widget,
1485           GdkRectangle    *cell_area,
1486           PangoLayout     *layout,
1487           gint            *x_offset,
1488           gint            *y_offset,
1489           gint            *width,
1490           gint            *height)
1491 {
1492   GtkCellRendererText *celltext = (GtkCellRendererText *) cell;
1493   PangoRectangle rect;
1494   GtkCellRendererTextPrivate *priv;
1495
1496   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (cell);
1497
1498   if (celltext->calc_fixed_height)
1499     {
1500       PangoContext *context;
1501       PangoFontMetrics *metrics;
1502       PangoFontDescription *font_desc;
1503       gint row_height;
1504
1505       font_desc = pango_font_description_copy_static (widget->style->font_desc);
1506       pango_font_description_merge_static (font_desc, celltext->font, TRUE);
1507
1508       if (celltext->scale_set)
1509         pango_font_description_set_size (font_desc,
1510                                          celltext->font_scale * pango_font_description_get_size (font_desc));
1511
1512       context = gtk_widget_get_pango_context (widget);
1513
1514       metrics = pango_context_get_metrics (context,
1515                                            font_desc,
1516                                            pango_context_get_language (context));
1517       row_height = (pango_font_metrics_get_ascent (metrics) +
1518                     pango_font_metrics_get_descent (metrics));
1519       pango_font_metrics_unref (metrics);
1520
1521       pango_font_description_free (font_desc);
1522
1523       gtk_cell_renderer_set_fixed_size (cell,
1524                                         cell->width, 2*cell->ypad +
1525                                         celltext->fixed_height_rows * PANGO_PIXELS (row_height));
1526
1527       if (height)
1528         {
1529           *height = cell->height;
1530           height = NULL;
1531         }
1532       celltext->calc_fixed_height = FALSE;
1533       if (width == NULL)
1534         return;
1535     }
1536
1537   if (layout)
1538     g_object_ref (layout);
1539   else
1540     layout = get_layout (celltext, widget, FALSE, 0);
1541
1542   pango_layout_get_pixel_extents (layout, NULL, &rect);
1543
1544   if (height)
1545     *height = cell->ypad * 2 + rect.height;
1546
1547   /* The minimum size for ellipsized labels is ~ 3 chars */
1548   if (width)
1549     {
1550       if (priv->ellipsize || priv->width_chars > 0)
1551         {
1552           PangoContext *context;
1553           PangoFontMetrics *metrics;
1554           gint char_width;
1555
1556           context = pango_layout_get_context (layout);
1557           metrics = pango_context_get_metrics (context, widget->style->font_desc, pango_context_get_language (context));
1558
1559           char_width = pango_font_metrics_get_approximate_char_width (metrics);
1560           pango_font_metrics_unref (metrics);
1561
1562           *width = cell->xpad * 2 + (PANGO_PIXELS (char_width) * MAX (priv->width_chars, 3));
1563         }
1564       else
1565         {
1566           *width = cell->xpad * 2 + rect.x + rect.width;
1567         }
1568     }
1569
1570   if (cell_area)
1571     {
1572       if (x_offset)
1573         {
1574           if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
1575             *x_offset = (1.0 - cell->xalign) * (cell_area->width - (rect.x + rect.width + (2 * cell->xpad)));
1576           else
1577             *x_offset = cell->xalign * (cell_area->width - (rect.x + rect.width + (2 * cell->xpad)));
1578
1579           if ((priv->ellipsize_set && priv->ellipsize != PANGO_ELLIPSIZE_NONE) || priv->wrap_width != -1)
1580             *x_offset = MAX(*x_offset, 0);
1581         }
1582       if (y_offset)
1583         {
1584           *y_offset = cell->yalign * (cell_area->height - (rect.height + (2 * cell->ypad)));
1585           *y_offset = MAX (*y_offset, 0);
1586         }
1587     }
1588   else
1589     {
1590       if (x_offset) *x_offset = 0;
1591       if (y_offset) *y_offset = 0;
1592     }
1593
1594   g_object_unref (layout);
1595 }
1596
1597
1598 static void
1599 gtk_cell_renderer_text_get_size (GtkCellRenderer *cell,
1600                                  GtkWidget       *widget,
1601                                  GdkRectangle    *cell_area,
1602                                  gint            *x_offset,
1603                                  gint            *y_offset,
1604                                  gint            *width,
1605                                  gint            *height)
1606 {
1607   get_size (cell, widget, cell_area, NULL,
1608             x_offset, y_offset, width, height);
1609 }
1610
1611 static void
1612 gtk_cell_renderer_text_render (GtkCellRenderer      *cell,
1613                                GdkDrawable          *window,
1614                                GtkWidget            *widget,
1615                                GdkRectangle         *background_area,
1616                                GdkRectangle         *cell_area,
1617                                GdkRectangle         *expose_area,
1618                                GtkCellRendererState  flags)
1619
1620 {
1621   GtkCellRendererText *celltext = (GtkCellRendererText *) cell;
1622   PangoLayout *layout;
1623   GtkStateType state;
1624   gint x_offset;
1625   gint y_offset;
1626   GtkCellRendererTextPrivate *priv;
1627
1628   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (cell);
1629
1630   layout = get_layout (celltext, widget, TRUE, flags);
1631   get_size (cell, widget, cell_area, layout, &x_offset, &y_offset, NULL, NULL);
1632
1633   if (!cell->sensitive)
1634     {
1635       state = GTK_STATE_INSENSITIVE;
1636     }
1637   else if ((flags & GTK_CELL_RENDERER_SELECTED) == GTK_CELL_RENDERER_SELECTED)
1638     {
1639       if (GTK_WIDGET_HAS_FOCUS (widget))
1640         state = GTK_STATE_SELECTED;
1641       else
1642         state = GTK_STATE_ACTIVE;
1643     }
1644   else if ((flags & GTK_CELL_RENDERER_PRELIT) == GTK_CELL_RENDERER_PRELIT &&
1645            GTK_WIDGET_STATE (widget) == GTK_STATE_PRELIGHT)
1646     {
1647       state = GTK_STATE_PRELIGHT;
1648     }
1649   else
1650     {
1651       if (GTK_WIDGET_STATE (widget) == GTK_STATE_INSENSITIVE)
1652         state = GTK_STATE_INSENSITIVE;
1653       else
1654         state = GTK_STATE_NORMAL;
1655     }
1656
1657   if (celltext->background_set &&
1658       (flags & GTK_CELL_RENDERER_SELECTED) == 0)
1659     {
1660       cairo_t *cr = gdk_cairo_create (window);
1661
1662       if (expose_area)
1663         {
1664           gdk_cairo_rectangle (cr, expose_area);
1665           cairo_clip (cr);
1666         }
1667
1668       gdk_cairo_rectangle (cr, background_area);
1669       cairo_set_source_rgb (cr,
1670                             celltext->background.red / 65535.,
1671                             celltext->background.green / 65535.,
1672                             celltext->background.blue / 65535.);
1673       cairo_fill (cr);
1674
1675       cairo_destroy (cr);
1676     }
1677
1678   if (priv->ellipsize_set && priv->ellipsize != PANGO_ELLIPSIZE_NONE)
1679     pango_layout_set_width (layout,
1680                             (cell_area->width - x_offset - 2 * cell->xpad) * PANGO_SCALE);
1681   else if (priv->wrap_width == -1)
1682     pango_layout_set_width (layout, -1);
1683
1684   gtk_paint_layout (widget->style,
1685                     window,
1686                     state,
1687                     TRUE,
1688                     expose_area,
1689                     widget,
1690                     "cellrenderertext",
1691                     cell_area->x + x_offset + cell->xpad,
1692                     cell_area->y + y_offset + cell->ypad,
1693                     layout);
1694
1695   g_object_unref (layout);
1696 }
1697
1698 static void
1699 gtk_cell_renderer_text_editing_done (GtkCellEditable *entry,
1700                                      gpointer         data)
1701 {
1702   const gchar *path;
1703   const gchar *new_text;
1704   GtkCellRendererTextPrivate *priv;
1705
1706   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (data);
1707
1708   priv->entry = NULL;
1709
1710   if (priv->focus_out_id > 0)
1711     {
1712       g_signal_handler_disconnect (entry, priv->focus_out_id);
1713       priv->focus_out_id = 0;
1714     }
1715
1716   if (priv->populate_popup_id > 0)
1717     {
1718       g_signal_handler_disconnect (entry, priv->populate_popup_id);
1719       priv->populate_popup_id = 0;
1720     }
1721
1722   if (priv->entry_menu_popdown_timeout)
1723     {
1724       g_source_remove (priv->entry_menu_popdown_timeout);
1725       priv->entry_menu_popdown_timeout = 0;
1726     }
1727
1728   gtk_cell_renderer_stop_editing (GTK_CELL_RENDERER (data),
1729                                   GTK_ENTRY (entry)->editing_canceled);
1730   if (GTK_ENTRY (entry)->editing_canceled)
1731     return;
1732
1733   path = g_object_get_data (G_OBJECT (entry), GTK_CELL_RENDERER_TEXT_PATH);
1734   new_text = gtk_entry_get_text (GTK_ENTRY (entry));
1735
1736   g_signal_emit (data, text_cell_renderer_signals[EDITED], 0, path, new_text);
1737 }
1738
1739 static gboolean
1740 popdown_timeout (gpointer data)
1741 {
1742   GtkCellRendererTextPrivate *priv;
1743
1744   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (data);
1745
1746   priv->entry_menu_popdown_timeout = 0;
1747
1748   if (!GTK_WIDGET_HAS_FOCUS (priv->entry))
1749     gtk_cell_renderer_text_editing_done (GTK_CELL_EDITABLE (priv->entry), data);
1750
1751   return FALSE;
1752 }
1753
1754 static void
1755 gtk_cell_renderer_text_popup_unmap (GtkMenu *menu,
1756                                     gpointer data)
1757 {
1758   GtkCellRendererTextPrivate *priv;
1759
1760   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (data);
1761
1762   priv->in_entry_menu = FALSE;
1763
1764   if (priv->entry_menu_popdown_timeout)
1765     return;
1766
1767   priv->entry_menu_popdown_timeout = gdk_threads_add_timeout (500, popdown_timeout,
1768                                                     data);
1769 }
1770
1771 static void
1772 gtk_cell_renderer_text_populate_popup (GtkEntry *entry,
1773                                        GtkMenu  *menu,
1774                                        gpointer  data)
1775 {
1776   GtkCellRendererTextPrivate *priv;
1777
1778   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (data);
1779
1780   if (priv->entry_menu_popdown_timeout)
1781     {
1782       g_source_remove (priv->entry_menu_popdown_timeout);
1783       priv->entry_menu_popdown_timeout = 0;
1784     }
1785
1786   priv->in_entry_menu = TRUE;
1787
1788   g_signal_connect (menu, "unmap",
1789                     G_CALLBACK (gtk_cell_renderer_text_popup_unmap), data);
1790 }
1791
1792 static gboolean
1793 gtk_cell_renderer_text_focus_out_event (GtkWidget *entry,
1794                                         GdkEvent  *event,
1795                                         gpointer   data)
1796 {
1797   GtkCellRendererTextPrivate *priv;
1798
1799   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (data);
1800
1801   if (priv->in_entry_menu)
1802     return FALSE;
1803
1804   GTK_ENTRY (entry)->editing_canceled = TRUE;
1805   gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (entry));
1806   gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (entry));
1807
1808   /* entry needs focus-out-event */
1809   return FALSE;
1810 }
1811
1812 static GtkCellEditable *
1813 gtk_cell_renderer_text_start_editing (GtkCellRenderer      *cell,
1814                                       GdkEvent             *event,
1815                                       GtkWidget            *widget,
1816                                       const gchar          *path,
1817                                       GdkRectangle         *background_area,
1818                                       GdkRectangle         *cell_area,
1819                                       GtkCellRendererState  flags)
1820 {
1821   GtkRequisition requisition;
1822   GtkCellRendererText *celltext;
1823   GtkCellRendererTextPrivate *priv;
1824
1825   celltext = GTK_CELL_RENDERER_TEXT (cell);
1826   priv = GTK_CELL_RENDERER_TEXT_GET_PRIVATE (cell);
1827
1828   /* If the cell isn't editable we return NULL. */
1829   if (celltext->editable == FALSE)
1830     return NULL;
1831
1832   priv->entry = g_object_new (GTK_TYPE_ENTRY,
1833                               "has-frame", FALSE,
1834                               "xalign", cell->xalign,
1835                               NULL);
1836
1837   if (celltext->text)
1838     gtk_entry_set_text (GTK_ENTRY (priv->entry), celltext->text);
1839   g_object_set_data_full (G_OBJECT (priv->entry), I_(GTK_CELL_RENDERER_TEXT_PATH), g_strdup (path), g_free);
1840
1841   gtk_editable_select_region (GTK_EDITABLE (priv->entry), 0, -1);
1842
1843   gtk_widget_size_request (priv->entry, &requisition);
1844   if (requisition.height < cell_area->height)
1845     {
1846       GtkBorder *style_border;
1847       GtkBorder border;
1848
1849       gtk_widget_style_get (priv->entry,
1850                             "inner-border", &style_border,
1851                             NULL);
1852
1853       if (style_border)
1854         {
1855           border = *style_border;
1856           g_boxed_free (GTK_TYPE_BORDER, style_border);
1857         }
1858       else
1859         {
1860           /* Since boxed style properties can't have default values ... */
1861           border.left = 2;
1862           border.right = 2;
1863         }
1864
1865       border.top = (cell_area->height - requisition.height) / 2;
1866       border.bottom = (cell_area->height - requisition.height) / 2;
1867       gtk_entry_set_inner_border (GTK_ENTRY (priv->entry), &border);
1868     }
1869
1870   priv->in_entry_menu = FALSE;
1871   if (priv->entry_menu_popdown_timeout)
1872     {
1873       g_source_remove (priv->entry_menu_popdown_timeout);
1874       priv->entry_menu_popdown_timeout = 0;
1875     }
1876
1877   g_signal_connect (priv->entry,
1878                     "editing_done",
1879                     G_CALLBACK (gtk_cell_renderer_text_editing_done),
1880                     celltext);
1881   priv->focus_out_id = g_signal_connect_after (priv->entry, "focus_out_event",
1882                                                G_CALLBACK (gtk_cell_renderer_text_focus_out_event),
1883                                                celltext);
1884   priv->populate_popup_id =
1885     g_signal_connect (priv->entry, "populate_popup",
1886                       G_CALLBACK (gtk_cell_renderer_text_populate_popup),
1887                       celltext);
1888
1889   gtk_widget_show (priv->entry);
1890
1891   return GTK_CELL_EDITABLE (priv->entry);
1892 }
1893
1894 /**
1895  * gtk_cell_renderer_text_set_fixed_height_from_font:
1896  * @renderer: A #GtkCellRendererText
1897  * @number_of_rows: Number of rows of text each cell renderer is allocated, or -1
1898  *
1899  * Sets the height of a renderer to explicitly be determined by the "font" and
1900  * "y_pad" property set on it.  Further changes in these properties do not
1901  * affect the height, so they must be accompanied by a subsequent call to this
1902  * function.  Using this function is unflexible, and should really only be used
1903  * if calculating the size of a cell is too slow (ie, a massive number of cells
1904  * displayed).  If @number_of_rows is -1, then the fixed height is unset, and
1905  * the height is determined by the properties again.
1906  **/
1907 void
1908 gtk_cell_renderer_text_set_fixed_height_from_font (GtkCellRendererText *renderer,
1909                                                    gint                 number_of_rows)
1910 {
1911   g_return_if_fail (GTK_IS_CELL_RENDERER_TEXT (renderer));
1912   g_return_if_fail (number_of_rows == -1 || number_of_rows > 0);
1913
1914   if (number_of_rows == -1)
1915     {
1916       gtk_cell_renderer_set_fixed_size (GTK_CELL_RENDERER (renderer),
1917                                         GTK_CELL_RENDERER (renderer)->width,
1918                                         -1);
1919     }
1920   else
1921     {
1922       renderer->fixed_height_rows = number_of_rows;
1923       renderer->calc_fixed_height = TRUE;
1924     }
1925 }
1926
1927 #define __GTK_CELL_RENDERER_TEXT_C__
1928 #include "gtkaliasdef.c"