git.sur5r.net Git - glabels/blob - glabels2/src/view-text.c

   1 /*
   2  *  (GLABELS) Label and Business Card Creation program for GNOME
   3  *
   4  *  view_text.c:  GLabels label text object widget
   5  *
   6  *  Copyright (C) 2001-2002  Jim Evins <evins@snaught.com>.
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21  */
  22
  23 #include <glib.h>
  24
  25 #include <libgnomeprint/gnome-glyphlist.h>
  26
  27 #include "view-text.h"
  28 #include "canvas-hacktext.h"
  29
  30 #include "view-highlight.h"
  31
  32 #include "glabels.h"
  33 #include "wdgt-text-entry.h"
  34 #include "wdgt-text-props.h"
  35 #include "wdgt-position.h"
  36
  37 #include "pixmaps/cursor_text.xbm"
  38 #include "pixmaps/cursor_text_mask.xbm"
  39
  40 #include "debug.h"
  41
  42 /*========================================================*/
  43 /* Private macros and constants.                          */
  44 /*========================================================*/
  45
  46 /*========================================================*/
  47 /* Private types.                                         */
  48 /*========================================================*/
  49
  50 struct _glViewTextPrivate {
  51
  52         GList     *item_list;
  53
  54         /* Page 0 widgets */
  55         GtkWidget *text_entry;
  56
  57         /* Page 1 widgets */
  58         GtkWidget *text_props;
  59
  60         /* Page 2 widgets */
  61         GtkWidget *position;
  62 };
  63
  64 /*========================================================*/
  65 /* Private globals.                                       */
  66 /*========================================================*/
  67
  68 static glViewObjectClass *parent_class = NULL;
  69
  70
  71 /*========================================================*/
  72 /* Private function prototypes.                           */
  73 /*========================================================*/
  74
  75 static void      gl_view_text_class_init       (glViewTextClass *klass);
  76 static void      gl_view_text_instance_init    (glViewText *view_text);
  77 static void      gl_view_text_finalize         (GObject *object);
  78
  79 static void      update_view_text_cb           (glLabelObject *object,
  80                                                 glViewText *view_text);
  81
  82 static GtkWidget *construct_properties_dialog  (glViewText *view_text);
  83
  84 static void      response_cb                   (GtkDialog *dialog,
  85                                                 gint response,
  86                                                 glViewText *view_text);
  87
  88 static void      text_entry_changed_cb         (glWdgtTextEntry *text_entry,
  89                                                 glViewText *view_text);
  90
  91 static void      text_props_changed_cb         (glWdgtTextProps *text_props,
  92                                                 glViewText *view_text);
  93
  94 static void      position_changed_cb           (glWdgtPosition *position,
  95                                                 glViewText *view_text);
  96
  97 static void      update_dialog_cb              (glLabelObject *object,
  98                                                 glViewText *view_text);
  99
 100 static void      draw_hacktext                 (glViewText *view_text);
 101
 102 \f
 103 /*****************************************************************************/
 104 /* Boilerplate object stuff.                                                 */
 105 /*****************************************************************************/
 106 GType
 107 gl_view_text_get_type (void)
 108 {
 109         static GType type = 0;
 110
 111         if (!type) {
 112                 GTypeInfo info = {
 113                         sizeof (glViewTextClass),
 114                         NULL,
 115                         NULL,
 116                         (GClassInitFunc) gl_view_text_class_init,
 117                         NULL,
 118                         NULL,
 119                         sizeof (glViewText),
 120                         0,
 121                         (GInstanceInitFunc) gl_view_text_instance_init,
 122                 };
 123
 124                 type = g_type_register_static (GL_TYPE_VIEW_OBJECT,
 125                                                "glViewText", &info, 0);
 126         }
 127
 128         return type;
 129 }
 130
 131 static void
 132 gl_view_text_class_init (glViewTextClass *klass)
 133 {
 134         GObjectClass *object_class = (GObjectClass *) klass;
 135
 136         gl_debug (DEBUG_VIEW, "START");
 137
 138         parent_class = g_type_class_peek_parent (klass);
 139
 140         object_class->finalize = gl_view_text_finalize;
 141
 142         gl_debug (DEBUG_VIEW, "END");
 143 }
 144
 145 static void
 146 gl_view_text_instance_init (glViewText *view_text)
 147 {
 148         gl_debug (DEBUG_VIEW, "START");
 149
 150         view_text->private = g_new0 (glViewTextPrivate, 1);
 151
 152         gl_debug (DEBUG_VIEW, "END");
 153 }
 154
 155 static void
 156 gl_view_text_finalize (GObject *object)
 157 {
 158         glLabel       *parent;
 159
 160         gl_debug (DEBUG_VIEW, "START");
 161
 162         g_return_if_fail (object && GL_IS_VIEW_TEXT (object));
 163
 164         G_OBJECT_CLASS (parent_class)->finalize (object);
 165
 166         gl_debug (DEBUG_VIEW, "END");
 167 }
 168
 169 /*****************************************************************************/
 170 /* NEW text object view.                                                  */
 171 /*****************************************************************************/
 172 glViewObject *
 173 gl_view_text_new (glLabelText *object,
 174                   glView     *view)
 175 {
 176         glViewText         *view_text;
 177         GtkMenu            *menu;
 178         GtkWidget          *dialog;
 179
 180         gl_debug (DEBUG_VIEW, "START");
 181         g_return_if_fail (object && GL_IS_LABEL_TEXT (object));
 182         g_return_if_fail (view && GL_IS_VIEW (view));
 183
 184         view_text = g_object_new (gl_view_text_get_type(), NULL);
 185
 186         gl_view_object_set_view (GL_VIEW_OBJECT(view_text), view);
 187         gl_view_object_set_object (GL_VIEW_OBJECT(view_text),
 188                                    GL_LABEL_OBJECT(object),
 189                                    GL_VIEW_HIGHLIGHT_SIMPLE);
 190
 191         /* Create analogous canvas item. */
 192         draw_hacktext (view_text);
 193
 194         g_signal_connect (G_OBJECT (object), "changed",
 195                           G_CALLBACK (update_view_text_cb), view_text);
 196
 197         /* Create a dialog for controlling/viewing object properties. */
 198         dialog = construct_properties_dialog (view_text);
 199         gl_view_object_set_dialog     (GL_VIEW_OBJECT(view_text), dialog);
 200
 201         gl_debug (DEBUG_VIEW, "END");
 202
 203         return GL_VIEW_OBJECT (view_text);
 204 }
 205
 206 /*---------------------------------------------------------------------------*/
 207 /* PRIVATE. label object "changed" callback.                                 */
 208 /*---------------------------------------------------------------------------*/
 209 static void
 210 update_view_text_cb (glLabelObject *object,
 211                      glViewText    *view_text)
 212 {
 213         glView             *view;
 214
 215         gl_debug (DEBUG_VIEW, "START");
 216
 217         view = gl_view_object_get_view (GL_VIEW_OBJECT(view_text));
 218
 219         /* Adjust appearance of analogous canvas item. */
 220         draw_hacktext (view_text);
 221
 222         /* Adjust highlight */
 223         gl_view_object_update_highlight (GL_VIEW_OBJECT(view_text));
 224
 225         gl_debug (DEBUG_VIEW, "END");
 226 }
 227
 228 /*****************************************************************************/
 229 /* Create a properties dialog for a text object.                          */
 230 /*****************************************************************************/
 231 static GtkWidget *
 232 construct_properties_dialog (glViewText *view_text)
 233 {
 234         GtkWidget          *dialog, *notebook, *wvbox, *wbutton;
 235         BonoboWindow       *win = glabels_get_active_window ();
 236         glLabelObject      *object;
 237         gdouble            x, y, w, h, label_width, label_height;
 238         GList              *lines;
 239         gchar              *font_family;
 240         gdouble            font_size;
 241         GnomeFontWeight    font_weight;
 242         gboolean           font_italic_flag;
 243         guint              color;
 244         GtkJustification   just;
 245         glMerge            *merge;
 246
 247         gl_debug (DEBUG_VIEW, "START");
 248
 249         /* retrieve object and query parameters */
 250         object = gl_view_object_get_object (GL_VIEW_OBJECT(view_text));
 251         gl_label_object_get_position (GL_LABEL_OBJECT(object), &x, &y);
 252         lines = gl_label_text_get_lines(GL_LABEL_TEXT(object));
 253         gl_label_text_get_props (GL_LABEL_TEXT(object),
 254                                  &font_family, &font_size,
 255                                  &font_weight, &font_italic_flag,
 256                                  &color, &just);
 257         gl_label_get_size (GL_LABEL(object->parent),
 258                            &label_width, &label_height);
 259         merge = gl_label_get_merge (GL_LABEL(object->parent));
 260
 261         /*-----------------------------------------------------------------*/
 262         /* Build dialog with notebook.                                     */
 263         /*-----------------------------------------------------------------*/
 264         gl_debug (DEBUG_VIEW, "Creating dialog...");
 265         dialog = gtk_dialog_new_with_buttons ( _("Edit text object properties"),
 266                                                GTK_WINDOW (win),
 267                                                GTK_DIALOG_DESTROY_WITH_PARENT,
 268                                                GTK_STOCK_CLOSE,
 269                                                            GTK_RESPONSE_CLOSE,
 270                                                NULL );
 271         g_signal_connect (G_OBJECT (dialog), "response",
 272                           G_CALLBACK (response_cb), view_text);
 273
 274         notebook = gtk_notebook_new ();
 275         gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox),
 276                             notebook, TRUE, TRUE, 0);
 277
 278         /*---------------------------*/
 279         /* Text Notebook Tab         */
 280         /*---------------------------*/
 281         gl_debug (DEBUG_VIEW, "Creating text tab...");
 282         wvbox = gtk_vbox_new (FALSE, GNOME_PAD);
 283         gtk_container_set_border_width (GTK_CONTAINER (wvbox), 10);
 284         gtk_notebook_append_page (GTK_NOTEBOOK (notebook), wvbox,
 285                                   gtk_label_new (_("Text")));
 286
 287         /* text entry */
 288         gl_debug (DEBUG_VIEW, "Creating text entry...");
 289         view_text->private->text_entry =
 290                 gl_wdgt_text_entry_new ("Text", merge->field_defs);
 291         gl_debug (DEBUG_VIEW, "1");
 292         gl_wdgt_text_entry_set_text (GL_WDGT_TEXT_ENTRY(view_text->private->text_entry),
 293                                      (merge->type != GL_MERGE_NONE),
 294                                      lines);
 295         gl_debug (DEBUG_VIEW, "2");
 296         gtk_box_pack_start (GTK_BOX (wvbox), view_text->private->text_entry,
 297                             FALSE, FALSE, 0);
 298         gl_debug (DEBUG_VIEW, "3");
 299         g_signal_connect ( G_OBJECT(view_text->private->text_entry),
 300                            "changed", G_CALLBACK (text_entry_changed_cb),
 301                            view_text);
 302
 303
 304         /*---------------------------*/
 305         /* Text Props Notebook Tab   */
 306         /*---------------------------*/
 307         gl_debug (DEBUG_VIEW, "Creating props tab...");
 308         wvbox = gtk_vbox_new (FALSE, GNOME_PAD);
 309         gtk_container_set_border_width (GTK_CONTAINER (wvbox), 10);
 310         gtk_notebook_append_page (GTK_NOTEBOOK (notebook), wvbox,
 311                                   gtk_label_new (_("Appearance")));
 312
 313         /* text props entry */
 314         gl_debug (DEBUG_VIEW, "Creating props entry...");
 315         view_text->private->text_props =
 316                 gl_wdgt_text_props_new ("Text Properties");
 317         gl_wdgt_text_props_set_params (GL_WDGT_TEXT_PROPS(view_text->private->text_props),
 318                                        font_family, font_size, font_weight,
 319                                        font_italic_flag, color, just);
 320         gtk_box_pack_start (GTK_BOX (wvbox), view_text->private->text_props,
 321                             FALSE, FALSE, 0);
 322         g_signal_connect ( G_OBJECT(view_text->private->text_props),
 323                            "changed", G_CALLBACK (text_props_changed_cb),
 324                            view_text);
 325
 326
 327         /*----------------------------*/
 328         /* Position/Size Notebook Tab */
 329         /*----------------------------*/
 330         gl_debug (DEBUG_VIEW, "Creating position tab...");
 331         wvbox = gtk_vbox_new (FALSE, GNOME_PAD);
 332         gtk_container_set_border_width (GTK_CONTAINER (wvbox), 10);
 333         gtk_notebook_append_page (GTK_NOTEBOOK (notebook), wvbox,
 334                                   gtk_label_new (_("Position")));
 335
 336         /* ------ Position Frame ------ */
 337         gl_debug (DEBUG_VIEW, "Creating position entry...");
 338         view_text->private->position = gl_wdgt_position_new (_("Position"));
 339         gl_wdgt_position_set_params (GL_WDGT_POSITION (view_text->private->position),
 340                                      x, y,
 341                                      label_width, label_height);
 342         gtk_box_pack_start (GTK_BOX (wvbox),
 343                                 view_text->private->position,
 344                             FALSE, FALSE, 0);
 345         g_signal_connect (G_OBJECT (view_text->private->position),
 346                           "changed",
 347                           G_CALLBACK(position_changed_cb), view_text);
 348
 349
 350         /*----------------------------*/
 351         /* Track object changes.      */
 352         /*----------------------------*/
 353         g_signal_connect (G_OBJECT (object), "changed",
 354                           G_CALLBACK (update_dialog_cb), view_text);
 355
 356         gl_debug (DEBUG_VIEW, "END");
 357
 358         return dialog;
 359 }
 360
 361 /*---------------------------------------------------------------------------*/
 362 /* PRIVATE.  "Response" callback.                                            */
 363 /*---------------------------------------------------------------------------*/
 364 static void
 365 response_cb (GtkDialog     *dialog,
 366              gint          response,
 367              glViewText   *view_text)
 368 {
 369         gl_debug (DEBUG_VIEW, "START");
 370
 371         g_return_if_fail(dialog != NULL);
 372         g_return_if_fail(GTK_IS_DIALOG(dialog));
 373
 374         switch(response) {
 375         case GTK_RESPONSE_CLOSE:
 376                 gtk_widget_hide (GTK_WIDGET(dialog));
 377                 break;
 378         default:
 379                 g_assert_not_reached();
 380         }
 381
 382         gl_debug (DEBUG_VIEW, "END");
 383 }
 384
 385 /*---------------------------------------------------------------------------*/
 386 /* PRIVATE.  text_entry "changed" callback.                                  */
 387 /*---------------------------------------------------------------------------*/
 388 static void
 389 text_entry_changed_cb (glWdgtTextEntry  *text_entry,
 390                        glViewText       *view_text)
 391 {
 392         glLabelObject    *object;
 393         GList            *lines;
 394
 395         gl_debug (DEBUG_VIEW, "START");
 396
 397         object = gl_view_object_get_object (GL_VIEW_OBJECT(view_text));
 398
 399         lines = gl_wdgt_text_entry_get_text (text_entry);
 400
 401         g_signal_handlers_block_by_func (G_OBJECT(object),
 402                                          update_dialog_cb, view_text);
 403         gl_label_text_set_lines (GL_LABEL_TEXT(object), lines);
 404         g_signal_handlers_unblock_by_func (G_OBJECT(object),
 405                                            update_dialog_cb, view_text);
 406
 407         gl_text_node_lines_free (&lines);
 408
 409         gl_debug (DEBUG_VIEW, "END");
 410 }
 411
 412 /*---------------------------------------------------------------------------*/
 413 /* PRIVATE.  text_props "changed" callback.                                  */
 414 /*---------------------------------------------------------------------------*/
 415 static void
 416 text_props_changed_cb (glWdgtTextProps  *text_props,
 417                        glViewText       *view_text)
 418 {
 419         glLabelObject      *object;
 420         gchar              *font_family;
 421         gdouble            font_size;
 422         GnomeFontWeight    font_weight;
 423         gboolean           font_italic_flag;
 424         guint              color;
 425         GtkJustification   just;
 426
 427
 428         gl_debug (DEBUG_VIEW, "START");
 429
 430         object = gl_view_object_get_object (GL_VIEW_OBJECT(view_text));
 431
 432         gl_wdgt_text_props_get_params (text_props,
 433                                        &font_family, &font_size, &font_weight,
 434                                        &font_italic_flag,
 435                                        &color, &just);
 436
 437         g_signal_handlers_block_by_func (G_OBJECT(object),
 438                                          update_dialog_cb, view_text);
 439         gl_label_text_set_props (GL_LABEL_TEXT(object),
 440                                  font_family, font_size, font_weight,
 441                                  font_italic_flag,
 442                                  color, just);
 443         g_signal_handlers_unblock_by_func (G_OBJECT(object),
 444                                            update_dialog_cb, view_text);
 445
 446         g_free (font_family);
 447
 448         gl_debug (DEBUG_VIEW, "END");
 449 }
 450
 451 /*---------------------------------------------------------------------------*/
 452 /* PRIVATE.  position "changed" callback.                                    */
 453 /*---------------------------------------------------------------------------*/
 454 static void
 455 position_changed_cb (glWdgtPosition     *position,
 456                      glViewText         *view_text)
 457 {
 458         glLabelObject      *object;
 459         gdouble            x, y;
 460
 461         gl_debug (DEBUG_VIEW, "START");
 462
 463         gl_wdgt_position_get_position (GL_WDGT_POSITION (position), &x, &y);
 464
 465         object = gl_view_object_get_object (GL_VIEW_OBJECT(view_text));
 466
 467         g_signal_handlers_block_by_func (G_OBJECT(object),
 468                                          update_dialog_cb, view_text);
 469         gl_label_object_set_position (GL_LABEL_OBJECT(object), x, y);
 470         g_signal_handlers_unblock_by_func (G_OBJECT(object),
 471                                            update_dialog_cb, view_text);
 472
 473         gl_debug (DEBUG_VIEW, "END");
 474 }
 475
 476 /*---------------------------------------------------------------------------*/
 477 /* PRIVATE. label object "changed" callback.                                 */
 478 /*---------------------------------------------------------------------------*/
 479 static void
 480 update_dialog_cb (glLabelObject  *object,
 481                   glViewText     *view_text)
 482 {
 483         gdouble            x, y;
 484         GList              *lines;
 485         glMerge            *merge;
 486         gchar              *font_family;
 487         gdouble            font_size;
 488         GnomeFontWeight    font_weight;
 489         gboolean           font_italic_flag;
 490         guint              color;
 491         GtkJustification   just;
 492
 493         gl_debug (DEBUG_VIEW, "START");
 494
 495         /* Query properties of object. */
 496         lines = gl_label_text_get_lines(GL_LABEL_TEXT(object));
 497         gl_label_text_get_props (GL_LABEL_TEXT(object),
 498                                  &font_family, &font_size,
 499                                  &font_weight, &font_italic_flag,
 500                                  &color, &just);
 501         gl_label_object_get_position (GL_LABEL_OBJECT(object), &x, &y);
 502         merge = gl_label_get_merge (GL_LABEL(object->parent));
 503
 504         /* Block widget handlers to prevent recursion */
 505         g_signal_handlers_block_by_func (G_OBJECT(view_text->private->text_entry),
 506                                          text_entry_changed_cb, view_text);
 507         g_signal_handlers_block_by_func (G_OBJECT(view_text->private->text_props),
 508                                          text_props_changed_cb, view_text);
 509         g_signal_handlers_block_by_func (G_OBJECT(view_text->private->position),
 510                                          position_changed_cb, view_text);
 511
 512         /* Update widgets in property dialog */
 513
 514         gl_wdgt_text_entry_set_text (GL_WDGT_TEXT_ENTRY(view_text->private->text_entry),
 515                                      (merge->type != GL_MERGE_NONE),
 516                                      lines);
 517         gl_wdgt_text_props_set_params (GL_WDGT_TEXT_PROPS(view_text->private->text_props),
 518                                        font_family, font_size, font_weight,
 519                                        font_italic_flag, color, just);
 520         gl_wdgt_position_set_position (GL_WDGT_POSITION(view_text->private->position),
 521                                        x, y);
 522
 523         /* Unblock widget handlers */
 524         g_signal_handlers_unblock_by_func (G_OBJECT(view_text->private->text_entry),
 525                                            text_entry_changed_cb, view_text);
 526         g_signal_handlers_unblock_by_func (G_OBJECT(view_text->private->text_props),
 527                                            text_props_changed_cb, view_text);
 528         g_signal_handlers_unblock_by_func (G_OBJECT(view_text->private->position),
 529                                            position_changed_cb, view_text);
 530
 531         gl_text_node_lines_free (&lines);
 532
 533         gl_debug (DEBUG_VIEW, "END");
 534 }
 535
 536 /*****************************************************************************/
 537 /* Return apropos cursor for create object mode.                             */
 538 /*****************************************************************************/
 539 GdkCursor *
 540 gl_view_text_get_create_cursor (void)
 541 {
 542         static GdkCursor *cursor = NULL;
 543         GdkPixmap        *pixmap_data, *pixmap_mask;
 544         GdkColor         fg = { 0, 0, 0, 0 };
 545         GdkColor         bg = { 0, 65535, 65535, 65535 };
 546
 547         gl_debug (DEBUG_VIEW, "START");
 548
 549         if (!cursor) {
 550                 pixmap_data = gdk_bitmap_create_from_data (NULL,
 551                                                            cursor_text_bits,
 552                                                            cursor_text_width,
 553                                                            cursor_text_height);
 554                 pixmap_mask = gdk_bitmap_create_from_data (NULL,
 555                                                            cursor_text_mask_bits,
 556                                                            cursor_text_mask_width,
 557                                                            cursor_text_mask_height);
 558                 cursor =
 559                     gdk_cursor_new_from_pixmap (pixmap_data, pixmap_mask, &fg,
 560                                                 &bg, cursor_text_x_hot,
 561                                                 cursor_text_y_hot);
 562         }
 563
 564         gl_debug (DEBUG_VIEW, "END");
 565
 566         return cursor;
 567 }
 568
 569 /*****************************************************************************/
 570 /* Canvas event handler for creating text objects.                           */
 571 /*****************************************************************************/
 572 int
 573 gl_view_text_create_event_handler (GnomeCanvas *canvas,
 574                                       GdkEvent    *event,
 575                                       glView      *view)
 576 {
 577         static gdouble      x0, y0;
 578         static gboolean     dragging = FALSE;
 579         static glViewObject *view_text;
 580         static GObject      *object;
 581         gdouble             x, y;
 582         GList               *lines;
 583
 584         gl_debug (DEBUG_VIEW, "");
 585
 586         switch (event->type) {
 587
 588         case GDK_BUTTON_PRESS:
 589                 gl_debug (DEBUG_VIEW, "BUTTON_PRESS");
 590                 switch (event->button.button) {
 591                 case 1:
 592                         dragging = TRUE;
 593                         gdk_pointer_grab (GTK_WIDGET (view->canvas)->window,
 594                                           FALSE,
 595                                           GDK_POINTER_MOTION_MASK |
 596                                           GDK_BUTTON_RELEASE_MASK |
 597                                           GDK_BUTTON_PRESS_MASK,
 598                                           NULL, NULL, event->button.time);
 599                         gnome_canvas_window_to_world (canvas,
 600                                                       event->button.x,
 601                                                       event->button.y, &x, &y);
 602                         object = gl_label_text_new (view->label);
 603                         gl_label_object_set_position (GL_LABEL_OBJECT(object),
 604                                                      x, y);
 605                         lines = gl_text_node_lines_new_from_text (_("Text"));
 606                         gl_label_text_set_lines (GL_LABEL_TEXT(object), lines);
 607                         view_text = gl_view_text_new (GL_LABEL_TEXT(object),
 608                                                       view);
 609                         x0 = x;
 610                         y0 = y;
 611                         return TRUE;
 612
 613                 default:
 614                         return FALSE;
 615                 }
 616
 617         case GDK_BUTTON_RELEASE:
 618                 gl_debug (DEBUG_VIEW, "BUTTON_RELEASE");
 619                 switch (event->button.button) {
 620                 case 1:
 621                         dragging = FALSE;
 622                         gdk_pointer_ungrab (event->button.time);
 623                         gnome_canvas_window_to_world (canvas,
 624                                                       event->button.x,
 625                                                       event->button.y, &x, &y);
 626                         gl_label_object_set_position (GL_LABEL_OBJECT(object),
 627                                                       x, y);
 628                         gl_view_unselect_all (view);
 629                         gl_view_object_select (GL_VIEW_OBJECT(view_text));
 630                         gl_view_arrow_mode (view);
 631                         return TRUE;
 632
 633                 default:
 634                         return FALSE;
 635                 }
 636
 637         case GDK_MOTION_NOTIFY:
 638                 gl_debug (DEBUG_VIEW, "MOTION_NOTIFY");
 639                 if (dragging && (event->motion.state & GDK_BUTTON1_MASK)) {
 640                         gnome_canvas_window_to_world (canvas,
 641                                                       event->button.x,
 642                                                       event->button.y, &x, &y);
 643                         gl_label_object_set_position (GL_LABEL_OBJECT(object),
 644                                                       x, y);
 645                         return TRUE;
 646                 } else {
 647                         return FALSE;
 648                 }
 649
 650         default:
 651                 return FALSE;
 652         }
 653
 654 }
 655
 656 /*--------------------------------------------------------------------------*/
 657 /* PRIVATE.  Draw hacktext to item (group).                                 */
 658 /*--------------------------------------------------------------------------*/
 659 static void
 660 draw_hacktext (glViewText *view_text)
 661 {
 662         glLabelObject    *object;
 663         GnomeCanvasItem  *group, *item;
 664         GList            *lines;
 665         gchar            *text;
 666         gchar            *font_family;
 667         GnomeFontWeight  font_weight;
 668         gboolean         font_italic_flag;
 669         gdouble          font_size;
 670         guint            color;
 671         GtkJustification just;
 672         GnomeFont        *font;
 673         GnomeGlyphList   *glyphlist;
 674         ArtDRect         bbox;
 675         gdouble          affine[6];
 676         gdouble          x_offset, y_offset, w, object_w, object_h;
 677         gint             i;
 678         gchar            **line;
 679         GList            *li;
 680
 681         gl_debug (DEBUG_VIEW, "START");
 682
 683         /* Query label object and properties */
 684         object = gl_view_object_get_object (GL_VIEW_OBJECT(view_text));
 685         gl_label_object_get_size (object, &object_w, &object_h);
 686         gl_label_text_get_props (GL_LABEL_TEXT(object),
 687                                  &font_family, &font_size,
 688                                  &font_weight, &font_italic_flag,
 689                                  &color, &just);
 690         lines = gl_label_text_get_lines(GL_LABEL_TEXT(object));
 691         text = gl_text_node_lines_expand (lines, NULL);
 692         line = g_strsplit (text, "\n", -1);
 693
 694         /* get parent item/group to render to. */
 695         group = gl_view_object_get_group (GL_VIEW_OBJECT(view_text));
 696
 697         /* remove previous items from group. */
 698         for (li = view_text->private->item_list; li != NULL; li = li->next) {
 699                 gl_debug (DEBUG_VIEW, "in loop");
 700                 gtk_object_destroy (GTK_OBJECT (li->data));
 701         }
 702         gl_debug (DEBUG_VIEW, "1");
 703         g_list_free (view_text->private->item_list);
 704         view_text->private->item_list = NULL;
 705         gl_debug (DEBUG_VIEW, "2");
 706
 707         /* get Gnome Font */
 708         font = gnome_font_find_closest_from_weight_slant (font_family,
 709                                                           font_weight,
 710                                                           font_italic_flag,
 711                                                           font_size);
 712         art_affine_identity (affine);
 713
 714         /* render to group, one item per line. */
 715         for (i = 0; line[i] != NULL; i++) {
 716
 717                 glyphlist = gnome_glyphlist_from_text_dumb (font, color,
 718                                                             0.0, 0.0,
 719                                                             line[i]);
 720
 721                 gnome_glyphlist_bbox (glyphlist, affine, 0, &bbox);
 722                 w = bbox.x1;
 723
 724                 switch (just) {
 725                 case GTK_JUSTIFY_LEFT:
 726                         x_offset = 0.0;
 727                         break;
 728                 case GTK_JUSTIFY_CENTER:
 729                         x_offset = (object_w - w) / 2.0;
 730                         break;
 731                 case GTK_JUSTIFY_RIGHT:
 732                         x_offset = object_w - w;
 733                         break;
 734                 default:
 735                         x_offset = 0.0;
 736                         break;  /* shouldn't happen */
 737                 }
 738
 739                 y_offset =
 740                         (i + 1) * font_size + gnome_font_get_descender (font);
 741
 742                 item = gnome_canvas_item_new (GNOME_CANVAS_GROUP (group),
 743                                               gl_canvas_hacktext_get_type (),
 744                                               "x", x_offset,
 745                                               "y", y_offset,
 746                                               "glyphlist", glyphlist, NULL);
 747                 view_text->private->item_list =
 748                         g_list_prepend (view_text->private->item_list, item);
 749
 750         }
 751
 752         /* clean up */
 753         g_strfreev (line);
 754         gl_text_node_lines_free (&lines);
 755         g_free (text);
 756
 757         gl_debug (DEBUG_VIEW, "END");
 758 }
 759