gtktreeview.c 177 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
/* gtktreeview.c
 * Copyright (C) 2000  Red Hat, Inc.,  Jonathan Blandford <jrb@redhat.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */


#include "gtktreeview.h"
#include "gtkrbtree.h"
Havoc Pennington's avatar
Havoc Pennington committed
23
#include "gtktreednd.h"
24 25 26 27 28 29 30
#include "gtktreeprivate.h"
#include "gtkcellrenderer.h"
#include "gtksignal.h"
#include "gtkmain.h"
#include "gtkbutton.h"
#include "gtkalignment.h"
#include "gtklabel.h"
Havoc Pennington's avatar
Havoc Pennington committed
31 32
#include "gtkhbox.h"
#include "gtkarrow.h"
33
#include "gtkintl.h"
34 35 36 37 38

#include <gdk/gdkkeysyms.h>



Havoc Pennington's avatar
Havoc Pennington committed
39 40 41 42 43 44 45 46 47 48 49 50 51 52
/* The "background" areas of all rows/cells add up to cover the entire tree.
 * The background includes all inter-row and inter-cell spacing.
 * The "cell" areas are the cell_area passed in to gtk_cell_renderer_render(),
 * i.e. just the cells, no spacing.
 */

#define BACKGROUND_FIRST_PIXEL(tree_view,tree,node) (_gtk_rbtree_node_find_offset ((tree), (node)) + TREE_VIEW_HEADER_HEIGHT ((tree_view)))
#define CELL_FIRST_PIXEL(tree_view,tree,node) (BACKGROUND_FIRST_PIXEL (tree_view,tree,node) + TREE_VIEW_VERTICAL_SEPARATOR/2)

#define BACKGROUND_HEIGHT(node) (GTK_RBNODE_GET_HEIGHT (node))
#define CELL_HEIGHT(node) (BACKGROUND_HEIGHT (node) - TREE_VIEW_VERTICAL_SEPARATOR);

#define TREE_WINDOW_Y_TO_RBTREE_Y(tree_view,y) ((y) - TREE_VIEW_HEADER_HEIGHT (tree_view))
#define RBTREE_Y_TO_TREE_WINDOW_Y(tree_view,y) ((y) + TREE_VIEW_HEADER_HEIGHT (tree_view))
53 54 55 56 57 58 59 60 61 62

typedef struct _GtkTreeViewChild GtkTreeViewChild;

struct _GtkTreeViewChild
{
  GtkWidget *widget;
  gint x;
  gint y;
};

63 64 65 66 67 68 69 70 71 72 73
enum {
  PROP_0,

  PROP_MODEL,
  PROP_HADJUSTMENT,
  PROP_VADJUSTMENT,
  PROP_HEADERS_VISIBLE,
  PROP_HEADERS_CLICKABLE,
  PROP_EXPANDER_COLUMN,
  PROP_RULES_HINT
};
74 75 76

static void     gtk_tree_view_init                 (GtkTreeView      *tree_view);
static void     gtk_tree_view_class_init           (GtkTreeViewClass *klass);
77 78 79 80 81 82 83 84 85 86
static void     gtk_tree_view_set_property         (GObject         *object,
						    guint            prop_id,
						    const GValue    *value,
						    GParamSpec      *pspec,
						    const gchar     *trailer);
static void     gtk_tree_view_get_property         (GObject         *object,
						    guint            prop_id,
						    GValue          *value,
						    GParamSpec      *pspec,
						    const gchar     *trailer);
87 88 89
/* object signals */
static void     gtk_tree_view_finalize             (GObject          *object);

90
/* widget signals */
91
static void     gtk_tree_view_setup_model          (GtkTreeView      *tree_view);
92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126
static void     gtk_tree_view_realize              (GtkWidget        *widget);
static void     gtk_tree_view_unrealize            (GtkWidget        *widget);
static void     gtk_tree_view_map                  (GtkWidget        *widget);
static void     gtk_tree_view_size_request         (GtkWidget        *widget,
						    GtkRequisition   *requisition);
static void     gtk_tree_view_size_allocate        (GtkWidget        *widget,
						    GtkAllocation    *allocation);
static gboolean gtk_tree_view_expose               (GtkWidget        *widget,
						    GdkEventExpose   *event);
static gboolean gtk_tree_view_motion               (GtkWidget        *widget,
						    GdkEventMotion   *event);
static gboolean gtk_tree_view_enter_notify         (GtkWidget        *widget,
						    GdkEventCrossing *event);
static gboolean gtk_tree_view_leave_notify         (GtkWidget        *widget,
						    GdkEventCrossing *event);
static gboolean gtk_tree_view_button_press         (GtkWidget        *widget,
						    GdkEventButton   *event);
static gboolean gtk_tree_view_button_release       (GtkWidget        *widget,
						    GdkEventButton   *event);
static void     gtk_tree_view_draw_focus           (GtkWidget        *widget);
static gint     gtk_tree_view_focus_in             (GtkWidget        *widget,
						    GdkEventFocus    *event);
static gint     gtk_tree_view_focus_out            (GtkWidget        *widget,
						    GdkEventFocus    *event);
static gint     gtk_tree_view_focus                (GtkContainer     *container,
						    GtkDirectionType  direction);

/* container signals */
static void     gtk_tree_view_remove               (GtkContainer     *container,
						    GtkWidget        *widget);
static void     gtk_tree_view_forall               (GtkContainer     *container,
						    gboolean          include_internals,
						    GtkCallback       callback,
						    gpointer          callback_data);

Havoc Pennington's avatar
Havoc Pennington committed
127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161
/* Source side drag signals */
static void gtk_tree_view_drag_begin       (GtkWidget        *widget,
                                            GdkDragContext   *context);
static void gtk_tree_view_drag_end         (GtkWidget        *widget,
                                            GdkDragContext   *context);
static void gtk_tree_view_drag_data_get    (GtkWidget        *widget,
                                            GdkDragContext   *context,
                                            GtkSelectionData *selection_data,
                                            guint             info,
                                            guint             time);
static void gtk_tree_view_drag_data_delete (GtkWidget        *widget,
                                            GdkDragContext   *context);

/* Target side drag signals */
static void     gtk_tree_view_drag_leave         (GtkWidget        *widget,
                                                  GdkDragContext   *context,
                                                  guint             time);
static gboolean gtk_tree_view_drag_motion        (GtkWidget        *widget,
                                                  GdkDragContext   *context,
                                                  gint              x,
                                                  gint              y,
                                                  guint             time);
static gboolean gtk_tree_view_drag_drop          (GtkWidget        *widget,
                                                  GdkDragContext   *context,
                                                  gint              x,
                                                  gint              y,
                                                  guint             time);
static void     gtk_tree_view_drag_data_received (GtkWidget        *widget,
                                                  GdkDragContext   *context,
                                                  gint              x,
                                                  gint              y,
                                                  GtkSelectionData *selection_data,
                                                  guint             info,
                                                  guint             time);

162 163 164 165
/* tree_model signals */
static void     gtk_tree_view_set_adjustments      (GtkTreeView      *tree_view,
						    GtkAdjustment    *hadj,
						    GtkAdjustment    *vadj);
166
static void     gtk_tree_view_changed              (GtkTreeModel     *model,
167
						    GtkTreePath      *path,
168
						    GtkTreeIter      *iter,
169
						    gpointer          data);
170
static void     gtk_tree_view_inserted             (GtkTreeModel     *model,
171
						    GtkTreePath      *path,
172
						    GtkTreeIter      *iter,
173
						    gpointer          data);
174
static void     gtk_tree_view_has_child_toggled    (GtkTreeModel     *model,
175
						    GtkTreePath      *path,
176
						    GtkTreeIter      *iter,
177
						    gpointer          data);
178
static void     gtk_tree_view_deleted              (GtkTreeModel     *model,
179 180 181 182
						    GtkTreePath      *path,
						    gpointer          data);

/* Internal functions */
183 184 185 186
static void     gtk_tree_view_queue_draw_node      (GtkTreeView      *tree_view,
						    GtkRBTree        *tree,
						    GtkRBNode        *node,
						    GdkRectangle     *clip_rect);
Havoc Pennington's avatar
Havoc Pennington committed
187 188 189
static void     gtk_tree_view_queue_draw_path      (GtkTreeView      *tree_view,
                                                    GtkTreePath      *path,
                                                    GdkRectangle     *clip_rect);
190
static void     gtk_tree_view_draw_arrow           (GtkTreeView      *tree_view,
Havoc Pennington's avatar
Havoc Pennington committed
191
                                                    GtkRBTree        *tree,
192 193 194
						    GtkRBNode        *node,
						    gint              x,
						    gint              y);
Havoc Pennington's avatar
Havoc Pennington committed
195 196
static void     gtk_tree_view_get_arrow_xrange     (GtkTreeView      *tree_view,
                                                    gint              *x1,
Havoc Pennington's avatar
Havoc Pennington committed
197
                                                    gint              *x2);
198 199 200 201 202
static gint     gtk_tree_view_new_column_width     (GtkTreeView      *tree_view,
						    gint              i,
						    gint             *x);
static void     gtk_tree_view_adjustment_changed   (GtkAdjustment    *adjustment,
						    GtkTreeView      *tree_view);
203
static gint     gtk_tree_view_insert_iter_height   (GtkTreeView      *tree_view,
204
						    GtkRBTree        *tree,
205
						    GtkTreeIter      *iter,
206 207 208
						    gint              depth);
static void     gtk_tree_view_build_tree           (GtkTreeView      *tree_view,
						    GtkRBTree        *tree,
209
						    GtkTreeIter      *iter,
210 211 212 213 214
						    gint              depth,
						    gboolean          recurse,
						    gboolean          calc_bounds);
static void     gtk_tree_view_calc_size            (GtkTreeView      *priv,
						    GtkRBTree        *tree,
215
						    GtkTreeIter      *iter,
216
						    gint              depth);
217 218
static gboolean gtk_tree_view_discover_dirty_iter  (GtkTreeView      *tree_view,
						    GtkTreeIter      *iter,
219 220 221 222
						    gint              depth,
						    gint             *height);
static void     gtk_tree_view_discover_dirty       (GtkTreeView      *tree_view,
						    GtkRBTree        *tree,
223
						    GtkTreeIter      *iter,
224 225
						    gint              depth);
static void     gtk_tree_view_check_dirty          (GtkTreeView      *tree_view);
226
#if 0
227 228 229
static void     gtk_tree_view_create_button        (GtkTreeView      *tree_view,
						    gint              i);
static void     gtk_tree_view_create_buttons       (GtkTreeView      *tree_view);
230
#endif
231 232 233
static void     gtk_tree_view_clamp_node_visible   (GtkTreeView      *tree_view,
						    GtkRBTree        *tree,
						    GtkRBNode        *node);
Havoc Pennington's avatar
Havoc Pennington committed
234 235
static gboolean gtk_tree_view_maybe_begin_dragging_row (GtkTreeView      *tree_view,
                                                        GdkEventMotion   *event);
236 237
static void     _gtk_tree_view_update_col_width    (GtkTreeView      *tree_view);

238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262

static GtkContainerClass *parent_class = NULL;


/* Class Functions */
GtkType
gtk_tree_view_get_type (void)
{
  static GtkType tree_view_type = 0;

  if (!tree_view_type)
    {
      static const GTypeInfo tree_view_info =
      {
        sizeof (GtkTreeViewClass),
	NULL,		/* base_init */
	NULL,		/* base_finalize */
        (GClassInitFunc) gtk_tree_view_class_init,
	NULL,		/* class_finalize */
	NULL,		/* class_data */
        sizeof (GtkTreeView),
	0,              /* n_preallocs */
        (GInstanceInitFunc) gtk_tree_view_init
      };

263
      tree_view_type = g_type_register_static (GTK_TYPE_CONTAINER, "GtkTreeView", &tree_view_info, 0);
264 265 266 267 268 269 270 271
    }

  return tree_view_type;
}

static void
gtk_tree_view_class_init (GtkTreeViewClass *class)
{
272
  GObjectClass *o_class;
273 274 275 276
  GtkObjectClass *object_class;
  GtkWidgetClass *widget_class;
  GtkContainerClass *container_class;

277 278 279 280 281
  o_class = (GObjectClass *) class;
  object_class = (GtkObjectClass *) class;
  widget_class = (GtkWidgetClass *) class;
  container_class = (GtkContainerClass *) class;

282 283
  parent_class = g_type_class_peek_parent (class);

284
  o_class->finalize = gtk_tree_view_finalize;
285 286
  o_class->set_property = gtk_tree_view_set_property;
  o_class->get_property = gtk_tree_view_get_property;
287

288 289 290 291 292 293 294 295 296 297 298 299 300 301
  widget_class->realize = gtk_tree_view_realize;
  widget_class->unrealize = gtk_tree_view_unrealize;
  widget_class->map = gtk_tree_view_map;
  widget_class->size_request = gtk_tree_view_size_request;
  widget_class->size_allocate = gtk_tree_view_size_allocate;
  widget_class->expose_event = gtk_tree_view_expose;
  widget_class->motion_notify_event = gtk_tree_view_motion;
  widget_class->enter_notify_event = gtk_tree_view_enter_notify;
  widget_class->leave_notify_event = gtk_tree_view_leave_notify;
  widget_class->button_press_event = gtk_tree_view_button_press;
  widget_class->button_release_event = gtk_tree_view_button_release;
  widget_class->focus_in_event = gtk_tree_view_focus_in;
  widget_class->focus_out_event = gtk_tree_view_focus_out;

Havoc Pennington's avatar
Havoc Pennington committed
302 303 304 305 306 307 308 309 310 311
  widget_class->drag_begin = gtk_tree_view_drag_begin;
  widget_class->drag_end = gtk_tree_view_drag_end;
  widget_class->drag_data_get = gtk_tree_view_drag_data_get;
  widget_class->drag_data_delete = gtk_tree_view_drag_data_delete;

  widget_class->drag_leave = gtk_tree_view_drag_leave;
  widget_class->drag_motion = gtk_tree_view_drag_motion;
  widget_class->drag_drop = gtk_tree_view_drag_drop;
  widget_class->drag_data_received = gtk_tree_view_drag_data_received;
  
312 313 314 315 316 317
  container_class->forall = gtk_tree_view_forall;
  container_class->remove = gtk_tree_view_remove;
  container_class->focus = gtk_tree_view_focus;

  class->set_scroll_adjustments = gtk_tree_view_set_adjustments;

318 319
  g_object_class_install_property (o_class,
                                   PROP_MODEL,
Tim Janik's avatar
Tim Janik committed
320 321 322 323 324 325
                                   g_param_spec_object ("model",
							_("TreeView Model"),
							_("The model for the tree view"),
							GTK_TYPE_TREE_MODEL,
							G_PARAM_READWRITE));
  
326 327 328 329
  g_object_class_install_property (o_class,
                                   PROP_HADJUSTMENT,
                                   g_param_spec_object ("hadjustment",
							_("Horizontal Adjustment"),
Jonathan Blandford's avatar
Jonathan Blandford committed
330
                                                        _("Horizontal Adjustment for the widget"),
331 332 333 334 335 336 337
                                                        GTK_TYPE_ADJUSTMENT,
                                                        G_PARAM_READWRITE));

  g_object_class_install_property (o_class,
                                   PROP_VADJUSTMENT,
                                   g_param_spec_object ("vadjustment",
							_("Vertical Adjustment"),
Jonathan Blandford's avatar
Jonathan Blandford committed
338
                                                        _("Vertical Adjustment for the widget"),
339 340 341 342 343 344 345
                                                        GTK_TYPE_ADJUSTMENT,
                                                        G_PARAM_READWRITE));

  g_object_class_install_property (o_class,
                                   PROP_HEADERS_VISIBLE,
                                   g_param_spec_boolean ("headers_visible",
							 _("Visible"),
Jonathan Blandford's avatar
Jonathan Blandford committed
346
							 _("Show the column header buttons"),
347 348 349 350 351 352 353
							 FALSE,
							 G_PARAM_READWRITE));

  g_object_class_install_property (o_class,
                                   PROP_HEADERS_CLICKABLE,
                                   g_param_spec_boolean ("headers_clickable",
							 _("Headers Clickable"),
Jonathan Blandford's avatar
Jonathan Blandford committed
354
							 _("Column headers respond to click events"),
355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371
							 FALSE,
							 G_PARAM_READWRITE));

  g_object_class_install_property (o_class,
                                   PROP_EXPANDER_COLUMN,
                                   g_param_spec_uint ("expander_column",
						      _("Expand Column"),
						      _("Set the column number for the expander column"),
						      0,
						      G_MAXINT,
						      0,
						      G_PARAM_READWRITE));

  g_object_class_install_property (o_class,
                                   PROP_RULES_HINT,
                                   g_param_spec_boolean ("rules_hint",
							 _("Rules Hint"),
Jonathan Blandford's avatar
Jonathan Blandford committed
372
							 _("Set a hint to the theme engine to draw rows in alternating colors"),
373 374 375
							 FALSE,
							 G_PARAM_READWRITE));

376 377 378 379 380
  widget_class->set_scroll_adjustments_signal =
    gtk_signal_new ("set_scroll_adjustments",
		    GTK_RUN_LAST,
		    GTK_CLASS_TYPE (object_class),
		    GTK_SIGNAL_OFFSET (GtkTreeViewClass, set_scroll_adjustments),
Tim Janik's avatar
Tim Janik committed
381
		    gtk_marshal_VOID__OBJECT_OBJECT,
382
		    GTK_TYPE_NONE, 2,
383
		    GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
384 385 386 387 388 389 390 391 392
}

static void
gtk_tree_view_init (GtkTreeView *tree_view)
{
  tree_view->priv = g_new0 (GtkTreeViewPrivate, 1);

  GTK_WIDGET_SET_FLAGS (tree_view, GTK_CAN_FOCUS);

393
  tree_view->priv->model = NULL;
394 395
  tree_view->priv->flags = GTK_TREE_VIEW_IS_LIST | GTK_TREE_VIEW_SHOW_EXPANDERS | GTK_TREE_VIEW_DRAW_KEYFOCUS | GTK_TREE_VIEW_HEADERS_VISIBLE;
  tree_view->priv->tab_offset = TREE_VIEW_EXPANDER_WIDTH;
396 397
  tree_view->priv->n_columns = 0;
  tree_view->priv->columns = NULL;
398 399 400 401 402 403 404 405 406
  tree_view->priv->button_pressed_node = NULL;
  tree_view->priv->button_pressed_tree = NULL;
  tree_view->priv->prelight_node = NULL;
  tree_view->priv->header_height = 1;
  tree_view->priv->x_drag = 0;
  tree_view->priv->drag_pos = -1;
  tree_view->priv->selection = NULL;
  tree_view->priv->anchor = NULL;
  tree_view->priv->cursor = NULL;
407
  tree_view->priv->header_has_focus = FALSE;
Havoc Pennington's avatar
Havoc Pennington committed
408 409 410 411
  tree_view->priv->pressed_button = -1;
  tree_view->priv->press_start_x = -1;
  tree_view->priv->press_start_y = -1;
  
412
  gtk_tree_view_set_adjustments (tree_view, NULL, NULL);
413
  _gtk_tree_view_update_size (tree_view);
414 415
}

416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431

/* Object methods
 */

static void
gtk_tree_view_finalize (GObject *object)
{
  GtkTreeView *tree_view = (GtkTreeView *) object;

  if (tree_view->priv->tree)
    _gtk_rbtree_free (tree_view->priv->tree);

  if (tree_view->priv->scroll_to_path != NULL)
    gtk_tree_path_free (tree_view->priv->scroll_to_path);

  if (tree_view->priv->drag_dest_row)
432
    gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
433 434 435 436 437 438
  
  g_free (tree_view->priv);
  if (G_OBJECT_CLASS (parent_class)->finalize)
    (* G_OBJECT_CLASS (parent_class)->finalize) (object);
}

439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455
/* Property handlers
 */

static void
gtk_tree_view_set_property (GObject         *object,
			    guint            prop_id,
			    const GValue    *value,
			    GParamSpec      *pspec,
			    const gchar     *trailer)
{
  GtkTreeView *tree_view;

  tree_view = GTK_TREE_VIEW (object);

  switch (prop_id)
    {
    case PROP_MODEL:
Jonathan Blandford's avatar
Jonathan Blandford committed
456
      gtk_tree_view_set_model (tree_view, GTK_TREE_MODEL (g_value_get_object (value)));
457 458
      break;
    case PROP_HADJUSTMENT:
Jonathan Blandford's avatar
Jonathan Blandford committed
459
      gtk_tree_view_set_hadjustment (tree_view, GTK_ADJUSTMENT (g_value_get_object (value)));
460 461
      break;
    case PROP_VADJUSTMENT:
Jonathan Blandford's avatar
Jonathan Blandford committed
462
      gtk_tree_view_set_vadjustment (tree_view, GTK_ADJUSTMENT (g_value_get_object (value)));
463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520
      break;
    case PROP_HEADERS_VISIBLE:
      gtk_tree_view_set_headers_visible (tree_view, g_value_get_boolean (value));
      break;
    case PROP_HEADERS_CLICKABLE:
      gtk_tree_view_set_headers_clickable (tree_view, g_value_get_boolean (value));
      break;
    case PROP_EXPANDER_COLUMN:
      gtk_tree_view_set_expander_column (tree_view, g_value_get_uint (value));
      break;
    case PROP_RULES_HINT:
      gtk_tree_view_set_rules_hint (tree_view, g_value_get_boolean (value));
      break;
    default:
      break;
    }
}

static void
gtk_tree_view_get_property (GObject         *object,
			    guint            prop_id,
			    GValue          *value,
			    GParamSpec      *pspec,
			    const gchar     *trailer)
{
  GtkTreeView *tree_view;

  tree_view = GTK_TREE_VIEW (object);
  
  switch (prop_id)
    {
    case PROP_MODEL:
      g_value_set_object (value, G_OBJECT (tree_view->priv->model));
      break;
    case PROP_HADJUSTMENT:
      g_value_set_object (value, G_OBJECT (tree_view->priv->hadjustment));
      break;
    case PROP_VADJUSTMENT:
      g_value_set_object (value, G_OBJECT (tree_view->priv->vadjustment));
      break;
    case PROP_HEADERS_VISIBLE:
      g_value_set_boolean (value, gtk_tree_view_get_headers_visible (tree_view));
      break;
    case PROP_HEADERS_CLICKABLE:
      /* g_value_set_boolean (value, gtk_tree_view_get_headers_clickable (tree_view)); */
      break;
    case PROP_EXPANDER_COLUMN:
      g_value_set_uint (value, tree_view->priv->expander_column);
      break;
    case PROP_RULES_HINT:
      g_value_set_boolean (value, tree_view->priv->has_rules);
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }
}

521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616
/* Widget methods
 */

static void
gtk_tree_view_realize (GtkWidget *widget)
{
  GList *tmp_list;
  GtkTreeView *tree_view;
  GdkGCValues values;
  GdkWindowAttr attributes;
  gint attributes_mask;

  g_return_if_fail (widget != NULL);
  g_return_if_fail (GTK_IS_TREE_VIEW (widget));

  tree_view = GTK_TREE_VIEW (widget);

  gtk_tree_view_check_dirty (GTK_TREE_VIEW (widget));
  GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);

  /* Make the main, clipping window */
  attributes.window_type = GDK_WINDOW_CHILD;
  attributes.x = widget->allocation.x;
  attributes.y = widget->allocation.y;
  attributes.width = widget->allocation.width;
  attributes.height = widget->allocation.height;
  attributes.wclass = GDK_INPUT_OUTPUT;
  attributes.visual = gtk_widget_get_visual (widget);
  attributes.colormap = gtk_widget_get_colormap (widget);
  attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;

  attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;

  widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
				   &attributes, attributes_mask);
  gdk_window_set_user_data (widget->window, widget);

  /* Make the window for the tree */
  attributes.x = 0;
  attributes.y = 0;
  attributes.width = tree_view->priv->width;
  attributes.height = tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view);
  attributes.event_mask = GDK_EXPOSURE_MASK |
    GDK_SCROLL_MASK |
    GDK_POINTER_MOTION_MASK |
    GDK_ENTER_NOTIFY_MASK |
    GDK_LEAVE_NOTIFY_MASK |
    GDK_BUTTON_PRESS_MASK |
    GDK_BUTTON_RELEASE_MASK |
    gtk_widget_get_events (widget);

  tree_view->priv->bin_window = gdk_window_new (widget->window,
						&attributes, attributes_mask);
  gdk_window_set_user_data (tree_view->priv->bin_window, widget);

  /* Make the column header window */
  attributes.x = 0;
  attributes.y = 0;
  attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
  attributes.height = tree_view->priv->header_height;
  attributes.event_mask = (GDK_EXPOSURE_MASK |
			   GDK_SCROLL_MASK |
			   GDK_BUTTON_PRESS_MASK |
			   GDK_BUTTON_RELEASE_MASK |
			   GDK_KEY_PRESS_MASK |
			   GDK_KEY_RELEASE_MASK) |
    gtk_widget_get_events (widget);

  tree_view->priv->header_window = gdk_window_new (widget->window,
						   &attributes, attributes_mask);
  gdk_window_set_user_data (tree_view->priv->header_window, widget);


  values.foreground = (widget->style->white.pixel==0 ?
		       widget->style->black:widget->style->white);
  values.function = GDK_XOR;
  values.subwindow_mode = GDK_INCLUDE_INFERIORS;
  tree_view->priv->xor_gc = gdk_gc_new_with_values (widget->window,
						    &values,
						    GDK_GC_FOREGROUND |
						    GDK_GC_FUNCTION |
						    GDK_GC_SUBWINDOW);
  /* Add them all up. */
  widget->style = gtk_style_attach (widget->style, widget->window);
  gdk_window_set_background (widget->window, &widget->style->base[widget->state]);
  gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
  gtk_style_set_background (widget->style, tree_view->priv->header_window, GTK_STATE_NORMAL);

  tmp_list = tree_view->priv->children;
  while (tmp_list)
    {
      GtkTreeViewChild *child = tmp_list->data;
      tmp_list = tmp_list->next;

      gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
    }
617 618 619 620

  for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
    _gtk_tree_view_column_realize_button (GTK_TREE_VIEW_COLUMN (tmp_list->data));

621
  _gtk_tree_view_update_size (GTK_TREE_VIEW (widget));
622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637

  if (tree_view->priv->scroll_to_path != NULL ||
      tree_view->priv->scroll_to_column != NULL)
    {
      gtk_tree_view_scroll_to_cell (tree_view,
				    tree_view->priv->scroll_to_path,
				    tree_view->priv->scroll_to_column,
				    tree_view->priv->scroll_to_row_align,
				    tree_view->priv->scroll_to_col_align);
      if (tree_view->priv->scroll_to_path)
	{
	  gtk_tree_path_free (tree_view->priv->scroll_to_path);
	  tree_view->priv->scroll_to_path = NULL;
	}
      tree_view->priv->scroll_to_column = NULL;
    }
638 639 640 641 642 643
}

static void
gtk_tree_view_unrealize (GtkWidget *widget)
{
  GtkTreeView *tree_view;
644
  GList *list;
645 646 647 648 649 650

  g_return_if_fail (widget != NULL);
  g_return_if_fail (GTK_IS_TREE_VIEW (widget));

  tree_view = GTK_TREE_VIEW (widget);

Havoc Pennington's avatar
Havoc Pennington committed
651 652 653 654 655 656 657 658 659 660 661
  if (tree_view->priv->scroll_timeout != 0)
    {
      gtk_timeout_remove (tree_view->priv->scroll_timeout);
      tree_view->priv->scroll_timeout = 0;
    }

  if (tree_view->priv->open_dest_timeout != 0)
    {
      gtk_timeout_remove (tree_view->priv->open_dest_timeout);
      tree_view->priv->open_dest_timeout = 0;
    }
662 663 664 665

  for (list = tree_view->priv->columns; list; list = list->next)
    _gtk_tree_view_column_unrealize_button (GTK_TREE_VIEW_COLUMN (list->data));

666 667 668 669 670 671 672 673
  gdk_window_set_user_data (tree_view->priv->bin_window, NULL);
  gdk_window_destroy (tree_view->priv->bin_window);
  tree_view->priv->bin_window = NULL;

  gdk_window_set_user_data (tree_view->priv->header_window, NULL);
  gdk_window_destroy (tree_view->priv->header_window);
  tree_view->priv->header_window = NULL;

674
  gdk_cursor_destroy (tree_view->priv->cursor_drag);
Havoc Pennington's avatar
Havoc Pennington committed
675 676
  gdk_gc_destroy (tree_view->priv->xor_gc);  
  
677 678
  /* GtkWidget::unrealize destroys children and widget->window */
  
679 680 681 682
  if (GTK_WIDGET_CLASS (parent_class)->unrealize)
    (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}

683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717
static void
gtk_tree_view_map_buttons (GtkTreeView *tree_view)
{
  GList *list;

  g_return_if_fail (GTK_WIDGET_MAPPED (tree_view));
  
  if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
    {
      GtkTreeViewColumn *column;
      
      for (list = tree_view->priv->columns; list; list = list->next)
	{
	  column = list->data;
          if (GTK_WIDGET_VISIBLE (column->button) &&
              !GTK_WIDGET_MAPPED (column->button))
            gtk_widget_map (column->button);
	}
      for (list = tree_view->priv->columns; list; list = list->next)
	{
	  column = list->data;
	  if (column->visible == FALSE)
	    continue;
	  if (column->column_type == GTK_TREE_VIEW_COLUMN_RESIZEABLE)
	    {
	      gdk_window_raise (column->window);
	      gdk_window_show (column->window);
	    }
	  else
	    gdk_window_hide (column->window);
	}
      gdk_window_show (tree_view->priv->header_window);
    }
}

718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743
static void
gtk_tree_view_map (GtkWidget *widget)
{
  GList *tmp_list;
  GtkTreeView *tree_view;

  g_return_if_fail (widget != NULL);
  g_return_if_fail (GTK_IS_TREE_VIEW (widget));

  tree_view = GTK_TREE_VIEW (widget);

  GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);

  tmp_list = tree_view->priv->children;
  while (tmp_list)
    {
      GtkTreeViewChild *child = tmp_list->data;
      tmp_list = tmp_list->next;

      if (GTK_WIDGET_VISIBLE (child->widget))
	{
	  if (!GTK_WIDGET_MAPPED (child->widget))
	    gtk_widget_map (child->widget);
	}
    }
  gdk_window_show (tree_view->priv->bin_window);
744 745 746 747 748 749 750 751 752 753 754 755 756 757

  gtk_tree_view_map_buttons (tree_view);
  
  gdk_window_show (widget->window);
}

static void
gtk_tree_view_size_request_buttons (GtkTreeView *tree_view)
{
  GList *list;
  
  tree_view->priv->header_height = 1;

  if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_MODEL_SETUP))
758
    {
759 760 761 762 763 764 765 766 767
      for (list = tree_view->priv->columns; list; list = list->next)
        {
          GtkRequisition requisition;
          GtkTreeViewColumn *column;
          
          column = list->data;
          
          gtk_widget_size_request (column->button, &requisition);
          
768
          gtk_tree_view_column_set_width (column, MAX (column->width, requisition.width));
769 770
          tree_view->priv->header_height = MAX (tree_view->priv->header_height, requisition.height);
        }
771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797
    }
}

static void
gtk_tree_view_size_request (GtkWidget      *widget,
			    GtkRequisition *requisition)
{
  GtkTreeView *tree_view;
  GList *tmp_list;

  g_return_if_fail (widget != NULL);
  g_return_if_fail (GTK_IS_TREE_VIEW (widget));

  tree_view = GTK_TREE_VIEW (widget);

  requisition->width = 200;
  requisition->height = 200;

  tmp_list = tree_view->priv->children;

  while (tmp_list)
    {
      GtkTreeViewChild *child = tmp_list->data;
      GtkRequisition child_requisition;

      tmp_list = tmp_list->next;

798 799
      if (GTK_WIDGET_VISIBLE (child->widget))
        gtk_widget_size_request (child->widget, &child_requisition);
800
    }
801 802

  gtk_tree_view_size_request_buttons (tree_view);
803 804 805 806 807 808 809 810 811 812
}

static void
gtk_tree_view_size_allocate_buttons (GtkWidget *widget)
{
  GtkTreeView *tree_view;
  GList *list;
  GtkTreeViewColumn *column;
  GtkAllocation allocation;
  gint width = 0;
813
  
814 815 816 817 818
  tree_view = GTK_TREE_VIEW (widget);

  allocation.y = 0;
  allocation.height = tree_view->priv->header_height;

819
  for (list = tree_view->priv->columns; list != NULL; list = list->next)
820 821 822 823 824 825 826
    {
      column = list->data;

      if (!column->visible)
	continue;

      allocation.x = width;
827
      allocation.width = column->displayed_width;
Havoc Pennington's avatar
Havoc Pennington committed
828
      width += column->width;
829 830 831
      gtk_widget_size_allocate (column->button, &allocation);

      if (column->window)
832
	gdk_window_move_resize (column->window,
833 834
                                allocation.x + allocation.width - TREE_VIEW_DRAG_WIDTH/2,
				allocation.y,
835
                                TREE_VIEW_DRAG_WIDTH, allocation.height);
836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851
    }
}

static void
gtk_tree_view_size_allocate (GtkWidget     *widget,
			     GtkAllocation *allocation)
{
  GList *tmp_list;
  GtkTreeView *tree_view;

  g_return_if_fail (widget != NULL);
  g_return_if_fail (GTK_IS_TREE_VIEW (widget));

  widget->allocation = *allocation;

  tree_view = GTK_TREE_VIEW (widget);
Havoc Pennington's avatar
Havoc Pennington committed
852 853 854
  
  gtk_tree_view_check_dirty (tree_view);
  
855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878
  tmp_list = tree_view->priv->children;

  while (tmp_list)
    {
      GtkAllocation allocation;
      GtkRequisition requisition;

      GtkTreeViewChild *child = tmp_list->data;
      tmp_list = tmp_list->next;

      allocation.x = child->x;
      allocation.y = child->y;
      gtk_widget_get_child_requisition (child->widget, &requisition);
      allocation.width = requisition.width;
      allocation.height = requisition.height;

      gtk_widget_size_allocate (child->widget, &allocation);
    }

  if (GTK_WIDGET_REALIZED (widget))
    {
      gdk_window_move_resize (widget->window,
			      allocation->x, allocation->y,
			      allocation->width, allocation->height);
Havoc Pennington's avatar
Havoc Pennington committed
879

880 881 882 883
      gdk_window_move_resize (tree_view->priv->header_window,
			      0, 0,
			      MAX (tree_view->priv->width, allocation->width),
			      tree_view->priv->header_height);
884 885 886 887 888 889 890

      if (tree_view->priv->width < allocation->width)
	gdk_window_resize (tree_view->priv->bin_window,
			   allocation->width,
			   tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view));

      _gtk_tree_view_update_col_width (tree_view);
891
    }
892
  
893 894
  gtk_tree_view_size_allocate_buttons (widget);

895 896 897 898
  tree_view->priv->hadjustment->page_size = allocation->width;
  tree_view->priv->hadjustment->page_increment = allocation->width / 2;
  tree_view->priv->hadjustment->lower = 0;
  tree_view->priv->hadjustment->upper = tree_view->priv->width;
Havoc Pennington's avatar
Havoc Pennington committed
899

900 901 902 903 904 905 906 907
  if (tree_view->priv->hadjustment->value + allocation->width > tree_view->priv->width)
    tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
  gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->hadjustment), "changed");

  tree_view->priv->vadjustment->page_size = allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view);
  tree_view->priv->vadjustment->page_increment = (allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view)) / 2;
  tree_view->priv->vadjustment->lower = 0;
  tree_view->priv->vadjustment->upper = tree_view->priv->height;
Havoc Pennington's avatar
Havoc Pennington committed
908

909 910 911
  if (tree_view->priv->vadjustment->value + allocation->height > tree_view->priv->height)
    gtk_adjustment_set_value (tree_view->priv->vadjustment,
			      (gfloat) MAX (tree_view->priv->height - allocation->height, 0));
Havoc Pennington's avatar
Havoc Pennington committed
912

913
  gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->vadjustment), "changed");
914

915 916
}

Havoc Pennington's avatar
Havoc Pennington committed
917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943
static void
gtk_tree_view_draw_node_focus_rect (GtkWidget   *widget,
                                    GtkTreePath *path)
{
  GtkTreeView *tree_view;
  GtkRBTree *tree = NULL;
  GtkRBNode *node = NULL;
  gint bin_window_width = 0;
  
  g_return_if_fail (widget != NULL);
  g_return_if_fail (GTK_IS_TREE_VIEW (widget));

  tree_view = GTK_TREE_VIEW (widget);

  _gtk_tree_view_find_node (tree_view, path, &tree, &node);

  if (tree == NULL)
    return;

  gdk_drawable_get_size (tree_view->priv->bin_window,
                         &bin_window_width, NULL);
  
  /* FIXME need a style function appropriate for this */
  gdk_draw_rectangle (tree_view->priv->bin_window,
		      widget->style->fg_gc[GTK_STATE_NORMAL],
		      FALSE,
		      0,
Havoc Pennington's avatar
Havoc Pennington committed
944
                      BACKGROUND_FIRST_PIXEL (tree_view, tree, node),
Havoc Pennington's avatar
Havoc Pennington committed
945
                      bin_window_width - 2,
Havoc Pennington's avatar
Havoc Pennington committed
946
		      BACKGROUND_HEIGHT (node) - 1);
Havoc Pennington's avatar
Havoc Pennington committed
947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971
}

GdkPixmap*
gtk_tree_view_create_row_drag_icon (GtkTreeView  *tree_view,
                                    GtkTreePath  *path)
{
  GtkTreeIter   iter;
  GtkRBTree    *tree;
  GtkRBNode    *node;
  GtkCellRenderer *cell;
  gint i;
  gint cell_offset;
  GList *list;
  GdkRectangle background_area;
  GtkWidget *widget;
  gint depth;
  /* start drawing inside the black outline */
  gint x = 1, y = 1;
  GdkDrawable *drawable;
  gint bin_window_width;
  
  widget = GTK_WIDGET (tree_view);

  depth = gtk_tree_path_get_depth (path);

Havoc Pennington's avatar
Havoc Pennington committed
972 973 974 975
  _gtk_tree_view_find_node (tree_view,
                            path,
                            &tree,
                            &node);
Havoc Pennington's avatar
Havoc Pennington committed
976

Havoc Pennington's avatar
Havoc Pennington committed
977 978 979
  if (tree == NULL)
    return NULL;
  
Havoc Pennington's avatar
Havoc Pennington committed
980 981 982 983 984 985 986
  if (!gtk_tree_model_get_iter (tree_view->priv->model,
                                &iter,
                                path))
    return NULL;
    
  cell_offset = x;

Havoc Pennington's avatar
Havoc Pennington committed
987 988
  background_area.y = y;
  background_area.height = BACKGROUND_HEIGHT (node);
Havoc Pennington's avatar
Havoc Pennington committed
989 990 991 992 993 994

  gdk_drawable_get_size (tree_view->priv->bin_window,
                         &bin_window_width, NULL);
  
  drawable = gdk_pixmap_new (tree_view->priv->bin_window,
                             bin_window_width + 2,
Havoc Pennington's avatar
Havoc Pennington committed
995
                             background_area.height + 2,
Havoc Pennington's avatar
Havoc Pennington committed
996 997 998 999 1000 1001 1002
                             -1);

  gdk_draw_rectangle (drawable,
                      widget->style->base_gc[GTK_WIDGET_STATE (widget)],
                      TRUE,
                      0, 0,
                      bin_window_width + 2,
Havoc Pennington's avatar
Havoc Pennington committed
1003
                      background_area.height + 2);
Havoc Pennington's avatar
Havoc Pennington committed
1004 1005 1006 1007 1008 1009

  gdk_draw_rectangle (drawable,
                      widget->style->black_gc,
                      FALSE,
                      0, 0,
                      bin_window_width + 1,
Havoc Pennington's avatar
Havoc Pennington committed
1010
                      background_area.height + 1);
Havoc Pennington's avatar
Havoc Pennington committed
1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025
  
  for (i = 0, list = tree_view->priv->columns; i < tree_view->priv->n_columns; i++, list = list->next)
    {
      GtkTreeViewColumn *column = list->data;
      GdkRectangle cell_area;
      
      if (!column->visible)
        continue;

      cell = column->cell;
      gtk_tree_view_column_set_cell_data (column,
                                          tree_view->priv->model,
                                          &iter);

      background_area.x = cell_offset;
1026
      background_area.width = column->displayed_width;
Havoc Pennington's avatar
Havoc Pennington committed
1027 1028

      cell_area = background_area;
Havoc Pennington's avatar
Havoc Pennington committed
1029 1030 1031

      cell_area.y += TREE_VIEW_VERTICAL_SEPARATOR / 2;
      cell_area.height -= TREE_VIEW_VERTICAL_SEPARATOR;
Havoc Pennington's avatar
Havoc Pennington committed
1032 1033 1034 1035 1036 1037 1038
      
      if (i == tree_view->priv->expander_column &&
          TREE_VIEW_DRAW_EXPANDERS(tree_view))
        {
          cell_area.x += depth * tree_view->priv->tab_offset;
          cell_area.width -= depth * tree_view->priv->tab_offset;
        }
1039 1040 1041 1042 1043 1044 1045 1046
      if (cell->visible)
	gtk_cell_renderer_render (cell,
				  drawable,
				  widget,
				  &background_area,
				  &cell_area,
				  NULL,
				  0);
Havoc Pennington's avatar
Havoc Pennington committed
1047
      
1048
      cell_offset += column->displayed_width;
Havoc Pennington's avatar
Havoc Pennington committed
1049 1050 1051 1052 1053
    }

  return drawable;
}

1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064
/* Warning: Very scary function.
 * Modify at your own risk
 */
static gboolean
gtk_tree_view_bin_expose (GtkWidget      *widget,
			  GdkEventExpose *event)
{
  GtkTreeView *tree_view;
  GtkTreePath *path;
  GtkRBTree *tree;
  GList *list;
Havoc Pennington's avatar
Havoc Pennington committed
1065
  GtkRBNode *node;
1066
  GtkRBNode *cursor = NULL;
Havoc Pennington's avatar
Havoc Pennington committed
1067
  GtkRBTree *cursor_tree = NULL;
Havoc Pennington's avatar
Havoc Pennington committed
1068 1069
  GtkRBNode *drag_highlight = NULL;
  GtkRBTree *drag_highlight_tree = NULL;
1070
  GtkTreeIter iter;
1071 1072 1073 1074 1075 1076 1077 1078
  GtkCellRenderer *cell;
  gint new_y;
  gint y_offset, x_offset, cell_offset;
  gint i, max_height;
  gint depth;
  GdkRectangle background_area;
  GdkRectangle cell_area;
  guint flags;
Havoc Pennington's avatar
Havoc Pennington committed
1079 1080
  gint highlight_x;
  gint bin_window_width;
1081 1082
  GtkTreePath *cursor_path;
  GtkTreePath *drag_dest_path;
1083 1084
  GList *last_column;

1085 1086 1087 1088 1089 1090 1091
  g_return_val_if_fail (widget != NULL, FALSE);
  g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);

  tree_view = GTK_TREE_VIEW (widget);

  if (tree_view->priv->tree == NULL)
    return TRUE;
Havoc Pennington's avatar
Havoc Pennington committed
1092
  
1093 1094 1095 1096 1097 1098
  gtk_tree_view_check_dirty (GTK_TREE_VIEW (widget));
  /* we want to account for a potential HEADER offset.
   * That is, if the header exists, we want to offset our event by its
   * height to find the right node.
   */
  new_y = (event->area.y<TREE_VIEW_HEADER_HEIGHT (tree_view))?TREE_VIEW_HEADER_HEIGHT (tree_view):event->area.y;
Havoc Pennington's avatar
Havoc Pennington committed
1099 1100 1101

  /* y_offset is the */
  
1102
  y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree,
Havoc Pennington's avatar
Havoc Pennington committed
1103
                                       TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, new_y),
1104 1105 1106 1107 1108 1109 1110 1111 1112
				       &tree,
				       &node) + new_y - event->area.y;
  if (node == NULL)
    return TRUE;

  /* find the path for the node */
  path = _gtk_tree_view_find_path ((GtkTreeView *)widget,
				   tree,
				   node);
1113 1114 1115
  gtk_tree_model_get_iter (tree_view->priv->model,
			   &iter,
			   path);
1116 1117 1118
  depth = gtk_tree_path_get_depth (path);
  gtk_tree_path_free (path);

1119 1120 1121
  cursor_path = NULL;
  drag_dest_path = NULL;
  
1122
  if (tree_view->priv->cursor)
1123 1124 1125 1126 1127
    cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);

  if (cursor_path)
    _gtk_tree_view_find_node (tree_view, cursor_path,
                              &cursor_tree, &cursor);
1128

Havoc Pennington's avatar
Havoc Pennington committed
1129
  if (tree_view->priv->drag_dest_row)
1130 1131 1132 1133
    drag_dest_path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);

  if (drag_dest_path)
    _gtk_tree_view_find_node (tree_view, drag_dest_path,
Havoc Pennington's avatar
Havoc Pennington committed
1134 1135 1136 1137
                              &drag_highlight_tree, &drag_highlight);

  gdk_drawable_get_size (tree_view->priv->bin_window,
                         &bin_window_width, NULL);
1138 1139 1140 1141 1142 1143 1144 1145

  for (last_column = g_list_last (tree_view->priv->columns);
       last_column &&
	 !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible) &&
	 GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (last_column->data)->button);
       last_column = last_column->prev)
    ;

1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157
  /* Actually process the expose event.  To do this, we want to
   * start at the first node of the event, and walk the tree in
   * order, drawing each successive node.
   */

  do
    {
      /* Need to think about this more.
	 if (tree_view->priv->show_expanders)
	 max_height = MAX (TREE_VIEW_EXPANDER_MIN_HEIGHT, GTK_RBNODE_GET_HEIGHT (node));
	 else
      */
Havoc Pennington's avatar
Havoc Pennington committed
1158 1159
      gboolean parity;
      
Havoc Pennington's avatar
Havoc Pennington committed
1160
      max_height = BACKGROUND_HEIGHT (node);
1161 1162 1163

      x_offset = -event->area.x;
      cell_offset = 0;
Havoc Pennington's avatar
Havoc Pennington committed
1164 1165
      highlight_x = 0; /* should match x coord of first cell */
      
Havoc Pennington's avatar
Havoc Pennington committed
1166 1167
      background_area.y = y_offset + event->area.y;
      background_area.height = max_height;
1168 1169 1170 1171 1172
      flags = 0;

      if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PRELIT))
	flags |= GTK_CELL_RENDERER_PRELIT;

Havoc Pennington's avatar
Havoc Pennington committed
1173 1174
      parity = _gtk_rbtree_node_find_parity (tree, node);
      
1175
      if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
Havoc Pennington's avatar
Havoc Pennington committed
1176 1177
        flags |= GTK_CELL_RENDERER_SELECTED;
      
1178
      for (i = 0, list = tree_view->priv->columns; i < tree_view->priv->n_columns; i++, list = list->next)
1179 1180
	{
	  GtkTreeViewColumn *column = list->data;
1181
	  const gchar *detail = NULL;
Havoc Pennington's avatar
Havoc Pennington committed
1182
          
1183
	  if (!column->visible)
Havoc Pennington's avatar
Havoc Pennington committed
1184
            continue;
1185

1186 1187 1188 1189 1190 1191 1192
	  if (cell_offset > event->area.x + event->area.width ||
	      cell_offset + column->displayed_width < event->area.x)
	    {
	      cell_offset += column->displayed_width;
	      continue;
	    }

Havoc Pennington's avatar
Havoc Pennington committed
1193 1194 1195 1196
          if (column->show_sort_indicator)
            flags |= GTK_CELL_RENDERER_SORTED;
          else
            flags &= ~GTK_CELL_RENDERER_SORTED;
1197

1198 1199 1200
	  cell = column->cell;
	  gtk_tree_view_column_set_cell_data (column,
					      tree_view->priv->model,
1201
					      &iter);
1202 1203

	  background_area.x = cell_offset;
1204
	  background_area.width = column->displayed_width;
1205

Havoc Pennington's avatar
Havoc Pennington committed
1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253
          cell_area = background_area;
          cell_area.y += TREE_VIEW_VERTICAL_SEPARATOR / 2;
          cell_area.height -= TREE_VIEW_VERTICAL_SEPARATOR;

          /* Select the detail for drawing the cell.  relevant
           * factors are parity, sortedness, and whether to
           * display rules.
           */

          /* FIXME when we have style properties, clean this up.
           */

          if (tree_view->priv->has_rules)
            {
              if (flags & GTK_CELL_RENDERER_SORTED)
                {
                  if (parity)
                    detail = "cell_odd_ruled_sorted";
                  else
                    detail = "cell_even_ruled_sorted";
                }
              else
                {
                  if (parity)
                    detail = "cell_odd_ruled";
                  else
                    detail = "cell_even_ruled";
                }
            }
          else
            {
              if (flags & GTK_CELL_RENDERER_SORTED)
                {
                  if (parity)
                    detail = "cell_odd_sorted";
                  else
                    detail = "cell_even_sorted";
                }
              else
                {
                  if (parity)
                    detail = "cell_odd";
                  else
                    detail = "cell_even";
                }
            }

          g_assert (detail);
1254

Havoc Pennington's avatar
Havoc Pennington committed
1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268
          /* Draw background */
          gtk_paint_flat_box (widget->style,
                              event->window,
                              (flags & GTK_CELL_RENDERER_SELECTED) ?
                              GTK_STATE_SELECTED : GTK_STATE_NORMAL,
                              GTK_SHADOW_NONE,
                              &event->area,
                              widget,
                              detail,
                              background_area.x,
                              background_area.y,
                              background_area.width,
                              background_area.height);
          
Havoc Pennington's avatar
Havoc Pennington committed
1269 1270
	  if (i == tree_view->priv->expander_column &&
              TREE_VIEW_DRAW_EXPANDERS(tree_view))
1271 1272 1273
	    {
	      cell_area.x += depth*tree_view->priv->tab_offset;
	      cell_area.width -= depth*tree_view->priv->tab_offset;
Havoc Pennington's avatar
Havoc Pennington committed
1274 1275 1276 1277 1278 1279

              /* If we have an expander column, the highlight underline
               * starts with that column, so that it indicates which
               * level of the tree we're dropping at.
               */
              highlight_x = cell_area.x;
1280 1281 1282 1283 1284 1285 1286 1287 1288

	      if (cell->visible)
		gtk_cell_renderer_render (cell,
					  event->window,
					  widget,
					  &background_area,
					  &cell_area,
					  &event->area,
					  flags);
Havoc Pennington's avatar
Havoc Pennington committed
1289

1290 1291 1292 1293 1294
	      if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT)
		{
		  gint x, y;
		  gdk_window_get_pointer (tree_view->priv->bin_window, &x, &y, 0);
		  gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
Havoc Pennington's avatar
Havoc Pennington committed
1295
                                            tree,
1296 1297 1298 1299 1300
					    node,
					    x, y);
		}
	    }
	  else
1301 1302 1303 1304 1305 1306 1307 1308 1309
	    {
	      if (cell->visible)
		gtk_cell_renderer_render (cell,
					  event->window,
					  widget,
					  &background_area,
					  &cell_area,
					  &event->area,
					  flags);
1310
	    }
1311
	  cell_offset += column->displayed_width;
1312 1313 1314 1315 1316 1317
	}

      if (node == cursor &&
	  GTK_WIDGET_HAS_FOCUS (widget))
	gtk_tree_view_draw_focus (widget);

Havoc Pennington's avatar
Havoc Pennington committed
1318 1319 1320 1321 1322 1323