app/modify_tool.c

   1 /* Dia -- an diagram creation/manipulation program
   2  * Copyright (C) 1998 Alexander Larsson
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program 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
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17  */
  18 #include <config.h>
  19
  20 #include <stdio.h>
  21 #include <math.h>
  22
  23 #include "modify_tool.h"
  24 #include "handle_ops.h"
  25 #include "object_ops.h"
  26 #include "connectionpoint_ops.h"
  27 #include "message.h"
  28 #include "properties.h"
  29 #include "select.h"
  30 #include "preferences.h"
  31 #include "cursor.h"
  32 #include "highlight.h"
  33 #include "textedit.h"
  34
  35 #include "diacanvas.h"
  36 #include "prop_text.h"
  37 #include "gtk/gtk.h"
  38
  39
  40 static DiaObject *click_select_object(DDisplay *ddisp, Point *clickedpoint,
  41                                    GdkEventButton *event);
  42 static int do_if_clicked_handle(DDisplay *ddisp, ModifyTool *tool,
  43                                 Point *clickedpoint,
  44                                 GdkEventButton *event);
  45 static void modify_button_press(ModifyTool *tool, GdkEventButton *event,
  46                                  DDisplay *ddisp);
  47 static void modify_button_release(ModifyTool *tool, GdkEventButton *event,
  48                                   DDisplay *ddisp);
  49 static void modify_motion(ModifyTool *tool, GdkEventMotion *event,
  50                           DDisplay *ddisp);
  51 static void modify_double_click(ModifyTool *tool, GdkEventButton *event,
  52                                 DDisplay *ddisp);
  53 static void modify_make_text_edit(DDisplay *ddisp, DiaObject *obj,
  54                                   Point *clickedpoint);
  55 static void modify_start_text_edit(DDisplay *ddisp, Text *text, DiaObject *obj,
  56                                    Point *clickedpoint);
  57
  58
  59 Tool *
  60 create_modify_tool(void)
  61 {
  62   ModifyTool *tool;
  63
  64   tool = g_new0(ModifyTool, 1);
  65   tool->tool.type = MODIFY_TOOL;
  66   tool->tool.button_press_func = (ButtonPressFunc) &modify_button_press;
  67   tool->tool.button_release_func = (ButtonReleaseFunc) &modify_button_release;
  68   tool->tool.motion_func = (MotionFunc) &modify_motion;
  69   tool->tool.double_click_func = (DoubleClickFunc) &modify_double_click;
  70   tool->gc = NULL;
  71   tool->state = STATE_NONE;
  72   tool->break_connections = 0;
  73   tool->auto_scrolled = FALSE;
  74
  75   tool->orig_pos = NULL;
  76
  77   return (Tool *)tool;
  78 }
  79
  80 static ModifierKeys
  81 gdk_event_to_dia_ModifierKeys(guint event_state)
  82 {
  83         ModifierKeys mod = MODIFIER_NONE;
  84         if (event_state & GDK_SHIFT_MASK)
  85                 mod |= MODIFIER_SHIFT;
  86    /*     Used intenally do not propagate
  87     *     if (event_state & GDK_CONTROL_MASK)
  88                 mod | MODIFIER_CONTROL;
  89                 */
  90         return mod;
  91 }
  92
  93
  94 void
  95 free_modify_tool(Tool *tool)
  96 {
  97   ModifyTool *mtool = (ModifyTool *)tool;
  98   if (mtool->gc)
  99     gdk_gc_unref(mtool->gc);
 100   g_free(mtool);
 101 }
 102
 103 /*
 104   This function is buggy. Fix it later!
 105 static void
 106 transitive_select(DDisplay *ddisp, Point *clickedpoint, DiaObject *obj)
 107 {
 108   guint i;
 109   GList *j;
 110   DiaObject *obj1;
 111
 112   for(i = 0; i < obj->num_connections; i++) {
 113     printf("%d\n", i);
 114     j = obj->connections[i]->connected;
 115     while(j != NULL && (obj1 = (DiaObject *)j->data) != NULL) {
 116       diagram_select(ddisp->diagram, obj1);
 117       obj1->ops->select(obj1, clickedpoint,
 118                         (Renderer *)ddisp->renderer);
 119       transitive_select(ddisp, clickedpoint, obj1);
 120       j = g_list_next(j);
 121     }
 122   }
 123 }
 124 */
 125
 126 static DiaObject *
 127 click_select_object(DDisplay *ddisp, Point *clickedpoint,
 128                     GdkEventButton *event)
 129 {
 130   Diagram *diagram;
 131   real click_distance;
 132   DiaObject *obj;
 133
 134   diagram = ddisp->diagram;
 135
 136   /* Find the closest object to select it: */
 137
 138   click_distance = ddisplay_untransform_length(ddisp, 3.0);
 139
 140   obj = diagram_find_clicked_object(diagram, clickedpoint,
 141                                     click_distance);
 142
 143   if (obj!=NULL) {
 144     /* Selected an object. */
 145     GList *already;
 146     /*printf("Selected object!\n");*/
 147
 148     already = g_list_find(diagram->data->selected, obj);
 149     if (already == NULL) { /* Not already selected */
 150       /*printf("Not already selected\n");*/
 151
 152       if (!(event->state & GDK_SHIFT_MASK)) {
 153         /* Not Multi-select => remove current selection */
 154         diagram_remove_all_selected(diagram, TRUE);
 155       }
 156
 157       diagram_select(diagram, obj);
 158       textedit_activate_object(ddisp, obj, clickedpoint);
 159
 160       /*
 161         This stuff is buggy, fix it later.
 162       if (event->state & GDK_CONTROL_MASK) {
 163         transitive_select(ddisp, clickedpoint, obj);
 164       }
 165       */
 166
 167       ddisplay_do_update_menu_sensitivity(ddisp);
 168       object_add_updates_list(diagram->data->selected, diagram);
 169       diagram_flush(diagram);
 170
 171       return obj;
 172     } else { /* Clicked on already selected. */
 173       /*printf("Already selected\n");*/
 174       textedit_activate_object(ddisp, obj, clickedpoint);
 175       object_add_updates_list(diagram->data->selected, diagram);
 176       diagram_flush(diagram);
 177
 178       if (event->state & GDK_SHIFT_MASK) { /* Multi-select */
 179         /* Remove the selected selected */
 180         ddisplay_do_update_menu_sensitivity(ddisp);
 181         diagram_unselect_object(ddisp->diagram, (DiaObject *)already->data);
 182         diagram_flush(ddisp->diagram);
 183       } else {
 184         /* Maybe start editing text */
 185 #ifdef NEW_TEXT_EDIT
 186         modify_make_text_edit(ddisp, obj, clickedpoint);
 187 #endif
 188         return obj;
 189       }
 190     }
 191   } /* Else part moved to allow union/intersection select */
 192
 193   return NULL;
 194 }
 195
 196 static glong
 197 time_micro()
 198 {
 199   GTimeVal tv;
 200
 201   g_get_current_time(&tv);
 202   return tv.tv_sec*G_USEC_PER_SEC+tv.tv_usec;
 203 }
 204
 205 static int do_if_clicked_handle(DDisplay *ddisp, ModifyTool *tool,
 206                                 Point *clickedpoint, GdkEventButton *event)
 207 {
 208   DiaObject *obj;
 209   Handle *handle;
 210   real dist;
 211
 212   handle = NULL;
 213   dist = diagram_find_closest_handle(ddisp->diagram, &handle,
 214                                      &obj, clickedpoint);
 215   if  (handle_is_clicked(ddisp, handle, clickedpoint)) {
 216     tool->state = STATE_MOVE_HANDLE;
 217     tool->break_connections = TRUE;
 218     tool->last_to = handle->pos;
 219     tool->handle = handle;
 220     tool->object = obj;
 221     gdk_pointer_grab (ddisp->canvas->window, FALSE,
 222                       GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON1_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 223                       NULL, NULL, event->time);
 224     tool->start_at = handle->pos;
 225     tool->start_time = time_micro();
 226     ddisplay_set_all_cursor(get_cursor(CURSOR_SCROLL));
 227     return TRUE;
 228   }
 229   return FALSE;
 230 }
 231
 232 static void
 233 modify_button_press(ModifyTool *tool, GdkEventButton *event,
 234                      DDisplay *ddisp)
 235 {
 236   Point clickedpoint;
 237   DiaObject *clicked_obj;
 238
 239   ddisplay_untransform_coords(ddisp,
 240                               (int)event->x, (int)event->y,
 241                               &clickedpoint.x, &clickedpoint.y);
 242
 243
 244   if (do_if_clicked_handle(ddisp, tool, &clickedpoint, event))
 245     return;
 246
 247   clicked_obj = click_select_object(ddisp, &clickedpoint, event);
 248   if (do_if_clicked_handle(ddisp, tool, &clickedpoint, event))
 249     return;
 250
 251   if ( clicked_obj != NULL ) {
 252     tool->state = STATE_MOVE_OBJECT;
 253     tool->object = clicked_obj;
 254     tool->move_compensate = clicked_obj->position;
 255     point_sub(&tool->move_compensate, &clickedpoint);
 256     tool->break_connections = TRUE;
 257     gdk_pointer_grab (ddisp->canvas->window, FALSE,
 258                       GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON1_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 259                       NULL, NULL, event->time);
 260     tool->start_at = clickedpoint;
 261     tool->start_time = time_micro();
 262     ddisplay_set_all_cursor(get_cursor(CURSOR_SCROLL));
 263   } else {
 264     tool->state = STATE_BOX_SELECT;
 265     tool->start_box = clickedpoint;
 266     tool->end_box = clickedpoint;
 267     tool->x1 = tool->x2 = (int) event->x;
 268     tool->y1 = tool->y2 = (int) event->y;
 269
 270     if (tool->gc == NULL) {
 271       tool->gc = gdk_gc_new(ddisp->canvas->window);
 272       gdk_gc_set_line_attributes(tool->gc, 1, GDK_LINE_ON_OFF_DASH,
 273                                  GDK_CAP_BUTT, GDK_JOIN_MITER);
 274       gdk_gc_set_foreground(tool->gc, &color_gdk_white);
 275       gdk_gc_set_function(tool->gc, GDK_XOR);
 276     }
 277
 278     gdk_draw_rectangle (ddisp->canvas->window, tool->gc, FALSE,
 279                         tool->x1, tool->y1,
 280                         tool->x2 - tool->x1, tool->y2 - tool->y1);
 281
 282     gdk_pointer_grab (ddisp->canvas->window, FALSE,
 283                       GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON1_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
 284                       NULL, NULL, event->time);
 285   }
 286 }
 287
 288
 289 static void
 290 modify_double_click(ModifyTool *tool, GdkEventButton *event,
 291                     DDisplay *ddisp)
 292 {
 293   Point clickedpoint;
 294   DiaObject *clicked_obj;
 295
 296   ddisplay_untransform_coords(ddisp,
 297                               (int)event->x, (int)event->y,
 298                               &clickedpoint.x, &clickedpoint.y);
 299
 300   clicked_obj = click_select_object(ddisp, &clickedpoint, event);
 301
 302   if ( clicked_obj != NULL ) {
 303     properties_show(ddisp->diagram, clicked_obj);
 304   } else { /* No object selected */
 305     /*printf("didn't select object\n");*/
 306     if (!(event->state & GDK_SHIFT_MASK)) {
 307       /* Not Multi-select => Remove all selected */
 308       ddisplay_do_update_menu_sensitivity(ddisp);
 309       diagram_remove_all_selected(ddisp->diagram, TRUE);
 310       diagram_flush(ddisp->diagram);
 311     }
 312   }
 313 }
 314
 315 #define MIN_PIXELS 10
 316
 317 /** Makes sure that objects aren't accidentally moved when double-clicking
 318  * for properties.  Objects do not move unless double click time has passed
 319  * or the move is 'significant'.  Allowing the 'significant' move makes a
 320  * regular grab-and-move less jerky.
 321  *
 322  * There's a slight chance that the user could move outside the
 323  * minimum movement limit and back in within the double click time
 324  * (normally .25 seconds), but that's very, very unlikely.  If
 325  * it happens, the cursor wouldn't reset just right.
 326  */
 327
 328 static gboolean
 329 modify_move_already(ModifyTool *tool, DDisplay *ddisp, Point *to)
 330 {
 331   static gboolean settings_taken = FALSE;
 332   static int double_click_time = 250;
 333   real dist;
 334
 335   if (!settings_taken) {
 336     /* One could argue that if the settings were updated while running,
 337        we should re-read them.  But I don't see any way to get notified,
 338        and I don't want to do this whole thing for each bit of the
 339        move --Lars */
 340     GtkSettings *settings = gtk_settings_get_default();
 341     if (settings == NULL) {
 342       g_message(_("Couldn't get GTK settings"));
 343     } else {
 344       g_object_get(G_OBJECT(settings),
 345                    "gtk-double-click-time", &double_click_time, NULL);
 346     }
 347     settings_taken = TRUE;
 348   }
 349   if (tool->start_time < time_micro()-double_click_time*1000) {
 350     return TRUE;
 351   }
 352   dist = distance_point_point_manhattan(&tool->start_at, to);
 353   if (ddisp->grid.snap) {
 354     real grid_x = ddisp->diagram->grid.width_x;
 355     real grid_y = ddisp->diagram->grid.width_y;
 356     if (dist > grid_x || dist > grid_y) {
 357       return TRUE;
 358     }
 359   }
 360   if (ddisplay_transform_length(ddisp, dist) > MIN_PIXELS) {
 361     return (ddisplay_transform_length(ddisp, dist) > MIN_PIXELS);
 362   } else {
 363     return FALSE;
 364   }
 365 }
 366
 367 /** Used for highlighting mainpoint connections. */
 368 static Color mainpoint_color = { 1.0, 0.8, 0.0 };
 369 /** Used for highlighting normal connections. */
 370 static Color cp_color = { 1.0, 0.0, 0.0 };
 371
 372 static void
 373 modify_motion(ModifyTool *tool, GdkEventMotion *event,
 374               DDisplay *ddisp)
 375 {
 376   Point to;
 377   Point now, delta, full_delta;
 378   gboolean auto_scroll, vertical = FALSE;
 379   ConnectionPoint *connectionpoint;
 380   ObjectChange *objchange;
 381   gchar *postext;
 382   GtkStatusbar *statusbar;
 383   guint context_id;
 384
 385   if (tool->state==STATE_NONE)
 386     return; /* Fast path... */
 387
 388   auto_scroll = ddisplay_autoscroll(ddisp, event->x, event->y);
 389
 390   ddisplay_untransform_coords(ddisp, event->x, event->y, &to.x, &to.y);
 391
 392   if (!modify_move_already(tool, ddisp, &to)) return;
 393
 394   switch (tool->state) {
 395   case STATE_MOVE_OBJECT:
 396
 397     if (tool->orig_pos == NULL) {
 398       GList *list;
 399       int i;
 400       DiaObject *obj;
 401
 402       /* consider non-selected children affected */
 403       list = parent_list_affected(ddisp->diagram->data->selected);
 404       tool->orig_pos = g_new(Point, g_list_length(list));
 405       i=0;
 406       while (list != NULL) {
 407         obj = (DiaObject *)  list->data;
 408         tool->orig_pos[i] = obj->position;
 409         list = g_list_next(list); i++;
 410       }
 411     }
 412
 413     if (tool->break_connections)
 414       diagram_unconnect_selected(ddisp->diagram); /* Pushes UNDO info */
 415
 416     if (event->state & GDK_CONTROL_MASK) {
 417       full_delta = to;
 418       point_sub(&full_delta, &tool->start_at);
 419       vertical = (fabs(full_delta.x) < fabs(full_delta.y));
 420     }
 421
 422     point_add(&to, &tool->move_compensate);
 423     snap_to_grid(ddisp, &to.x, &to.y);
 424
 425     now = tool->object->position;
 426
 427     delta = to;
 428     point_sub(&delta, &now);
 429
 430     if (event->state & GDK_CONTROL_MASK) {
 431       /* Up-down or left-right */
 432       if (vertical) {
 433         delta.x = tool->start_at.x + tool->move_compensate.x - now.x;
 434       } else {
 435         delta.y = tool->start_at.y + tool->move_compensate.y - now.y;
 436       }
 437     }
 438
 439     object_add_updates_list(ddisp->diagram->data->selected, ddisp->diagram);
 440     objchange = object_list_move_delta(ddisp->diagram->data->selected, &delta);
 441     if (objchange != NULL) {
 442       undo_object_change(ddisp->diagram, tool->object, objchange);
 443     }
 444     object_add_updates_list(ddisp->diagram->data->selected, ddisp->diagram);
 445
 446     object_add_updates(tool->object, ddisp->diagram);
 447
 448     /* Put current mouse position in status bar */
 449     statusbar = GTK_STATUSBAR (ddisp->modified_status);
 450     context_id = gtk_statusbar_get_context_id (statusbar, "ObjectPos");
 451
 452     postext = g_strdup_printf("%.3f, %.3f - %.3f, %.3f",
 453                               tool->object->bounding_box.left,
 454                               tool->object->bounding_box.top,
 455                               tool->object->bounding_box.right,
 456                               tool->object->bounding_box.bottom);
 457
 458     gtk_statusbar_pop (statusbar, context_id);
 459     gtk_statusbar_push (statusbar, context_id, postext);
 460
 461     g_free(postext);
 462
 463     diagram_update_connections_selection(ddisp->diagram);
 464     diagram_flush(ddisp->diagram);
 465     break;
 466   case STATE_MOVE_HANDLE:
 467     full_delta = to;
 468     point_sub(&full_delta, &tool->start_at);
 469
 470     /* make sure resizing is restricted to its parent */
 471
 472
 473     /* if resize was blocked by parent, that means the resizing was
 474       outward, thus it won't bother the children so we don't have to
 475       check the children */
 476     if (!parent_handle_move_out_check(tool->object, &to))
 477       parent_handle_move_in_check(tool->object, &to, &tool->start_at);
 478
 479     /* Move to ConnectionPoint if near: */
 480     connectionpoint =
 481       object_find_connectpoint_display(ddisp, &to, tool->object, TRUE);
 482
 483     if (event->state & GDK_CONTROL_MASK)
 484       vertical = (fabs(full_delta.x) < fabs(full_delta.y));
 485
 486     highlight_reset_all(ddisp->diagram);
 487     if ((tool->handle->connect_type != HANDLE_NONCONNECTABLE)) {
 488       if (connectionpoint != NULL) {
 489         Color *hi_color;
 490         to = connectionpoint->pos;
 491         if (connectionpoint->flags & CP_FLAGS_MAIN) {
 492           hi_color = &mainpoint_color;
 493         } else {
 494           hi_color = &cp_color;
 495         }
 496         highlight_object(connectionpoint->object, hi_color, ddisp->diagram);
 497         ddisplay_set_all_cursor(get_cursor(CURSOR_CONNECT));
 498       }
 499     }
 500     if (connectionpoint == NULL) {
 501       /* No connectionopoint near, then snap to grid (if enabled) */
 502       snap_to_grid(ddisp, &to.x, &to.y);
 503       ddisplay_set_all_cursor(get_cursor(CURSOR_SCROLL));
 504     }
 505
 506     if (tool->break_connections) {
 507       /* break connections to the handle currently selected. */
 508       if (tool->handle->connected_to!=NULL) {
 509         Change *change = undo_unconnect(ddisp->diagram, tool->object,
 510                                         tool->handle);
 511
 512         (change->apply)(change, ddisp->diagram);
 513       }
 514     }
 515
 516     if (event->state & GDK_CONTROL_MASK) {
 517       /* Up-down or left-right */
 518       if (vertical) {
 519         to.x = tool->start_at.x;
 520       } else {
 521         to.y = tool->start_at.y;
 522       }
 523     }
 524
 525     if (tool->orig_pos == NULL) {
 526       tool->orig_pos = g_new(Point, 1);
 527       *tool->orig_pos = tool->handle->pos;
 528     }
 529
 530     /* Put current mouse position in status bar */
 531     statusbar = GTK_STATUSBAR (ddisp->modified_status);
 532     context_id = gtk_statusbar_get_context_id (statusbar, "CursorPos");
 533
 534     postext = g_strdup_printf("%.3f, %.3f", to.x, to.y);
 535
 536     gtk_statusbar_pop (statusbar, context_id);
 537     gtk_statusbar_push (statusbar, context_id, postext);
 538
 539     g_free(postext);
 540
 541     object_add_updates(tool->object, ddisp->diagram);
 542
 543     /* Handle undo */
 544     objchange = tool->object->ops->move_handle(tool->object, tool->handle,
 545                                                &to, connectionpoint,
 546                                                HANDLE_MOVE_USER, gdk_event_to_dia_ModifierKeys(event->state));
 547     if (objchange != NULL) {
 548       undo_object_change(ddisp->diagram, tool->object, objchange);
 549     }
 550     object_add_updates(tool->object, ddisp->diagram);
 551
 552     diagram_update_connections_selection(ddisp->diagram);
 553     diagram_flush(ddisp->diagram);
 554     break;
 555   case STATE_BOX_SELECT:
 556
 557     if (!auto_scroll && !tool->auto_scrolled)
 558     {
 559       gdk_draw_rectangle (ddisp->canvas->window, tool->gc, FALSE,
 560                           tool->x1, tool->y1,
 561                           tool->x2 - tool->x1, tool->y2 - tool->y1);
 562     }
 563
 564     tool->end_box = to;
 565
 566     ddisplay_transform_coords(ddisp,
 567                               MIN(tool->start_box.x, tool->end_box.x),
 568                               MIN(tool->start_box.y, tool->end_box.y),
 569                               &tool->x1, &tool->y1);
 570     ddisplay_transform_coords(ddisp,
 571                               MAX(tool->start_box.x, tool->end_box.x),
 572                               MAX(tool->start_box.y, tool->end_box.y),
 573                               &tool->x2, &tool->y2);
 574
 575     gdk_draw_rectangle (ddisp->canvas->window, tool->gc, FALSE,
 576                         tool->x1, tool->y1,
 577                         tool->x2 - tool->x1, tool->y2 - tool->y1);
 578     break;
 579   case STATE_NONE:
 580
 581     break;
 582   default:
 583     message_error("Internal error: Strange state in modify_tool\n");
 584   }
 585
 586   tool->last_to = to;
 587   tool->auto_scrolled = auto_scroll;
 588 }
 589
 590 /** Find the list of objects selected by current rubberbanding.
 591  * The list should be freed after use. */
 592 static GList *
 593 find_selected_objects(DDisplay *ddisp, ModifyTool *tool)
 594 {
 595   Rectangle r;
 596   r.left = MIN(tool->start_box.x, tool->end_box.x);
 597   r.right = MAX(tool->start_box.x, tool->end_box.x);
 598   r.top = MIN(tool->start_box.y, tool->end_box.y);
 599   r.bottom = MAX(tool->start_box.y, tool->end_box.y);
 600
 601   if (prefs.reverse_rubberbanding_intersects &&
 602       tool->start_box.x > tool->end_box.x) {
 603     return
 604       layer_find_objects_intersecting_rectangle(ddisp->diagram->data->active_layer, &r);
 605   } else {
 606     return
 607       layer_find_objects_in_rectangle(ddisp->diagram->data->active_layer, &r);
 608   }
 609 }
 610
 611 static void
 612 modify_button_release(ModifyTool *tool, GdkEventButton *event,
 613                       DDisplay *ddisp)
 614 {
 615   Point *dest_pos, to;
 616   GList *list;
 617   int i;
 618   DiaObject *active_obj = NULL;
 619   ObjectChange *objchange;
 620
 621   tool->break_connections = FALSE;
 622   ddisplay_set_all_cursor(default_cursor);
 623
 624   switch (tool->state) {
 625   case STATE_MOVE_OBJECT:
 626     /* Return to normal state */
 627     gdk_pointer_ungrab (event->time);
 628
 629     ddisplay_untransform_coords(ddisp, event->x, event->y, &to.x, &to.y);
 630     if (!modify_move_already(tool, ddisp, &to)) {
 631       tool->orig_pos = NULL;
 632       tool->state = STATE_NONE;
 633       return;
 634     }
 635
 636     diagram_update_connections_selection(ddisp->diagram);
 637
 638     if (tool->orig_pos != NULL) {
 639       /* consider the non-selected children affected */
 640       list = parent_list_affected(ddisp->diagram->data->selected);
 641       dest_pos = g_new(Point, g_list_length(list));
 642       i=0;
 643       while (list != NULL) {
 644         DiaObject *obj = (DiaObject *)  list->data;
 645         dest_pos[i] = obj->position;
 646         list = g_list_next(list); i++;
 647       }
 648
 649       undo_move_objects(ddisp->diagram, tool->orig_pos, dest_pos,
 650                         parent_list_affected(ddisp->diagram->data->selected));
 651     }
 652
 653     ddisplay_connect_selected(ddisp); /* pushes UNDO info */
 654     diagram_update_extents(ddisp->diagram);
 655     diagram_modified(ddisp->diagram);
 656     diagram_flush(ddisp->diagram);
 657
 658     undo_set_transactionpoint(ddisp->diagram->undo);
 659
 660     tool->orig_pos = NULL;
 661     tool->state = STATE_NONE;
 662     break;
 663   case STATE_MOVE_HANDLE:
 664     gdk_pointer_ungrab (event->time);
 665     tool->state = STATE_NONE;
 666
 667     if (tool->orig_pos != NULL) {
 668       undo_move_handle(ddisp->diagram, tool->handle, tool->object,
 669                        *tool->orig_pos, tool->last_to);
 670     }
 671
 672     /* Final move: */
 673     object_add_updates(tool->object, ddisp->diagram);
 674     objchange = tool->object->ops->move_handle(tool->object, tool->handle,
 675                                                &tool->last_to, NULL,
 676                                                HANDLE_MOVE_USER_FINAL,gdk_event_to_dia_ModifierKeys(event->state));
 677     if (objchange != NULL) {
 678       undo_object_change(ddisp->diagram, tool->object, objchange);
 679     }
 680
 681     object_add_updates(tool->object, ddisp->diagram);
 682
 683     /* Connect if possible: */
 684     if (tool->handle->connect_type != HANDLE_NONCONNECTABLE) {
 685       object_connect_display(ddisp, tool->object, tool->handle, TRUE); /* pushes UNDO info */
 686       diagram_update_connections_selection(ddisp->diagram);
 687     }
 688
 689     highlight_reset_all(ddisp->diagram);
 690     diagram_flush(ddisp->diagram);
 691
 692     diagram_modified(ddisp->diagram);
 693     diagram_update_extents(ddisp->diagram);
 694
 695     undo_set_transactionpoint(ddisp->diagram->undo);
 696
 697     if (tool->orig_pos != NULL) {
 698       g_free(tool->orig_pos);
 699       tool->orig_pos = NULL;
 700     }
 701
 702     break;
 703   case STATE_BOX_SELECT:
 704     gdk_pointer_ungrab (event->time);
 705     /* Remember the currently active object for reactivating. */
 706     active_obj = active_focus()!=NULL?focus_get_object(active_focus()):NULL;
 707     /* Remove last box: */
 708     if (!tool->auto_scrolled) {
 709       gdk_draw_rectangle (ddisp->canvas->window, tool->gc, FALSE,
 710                         tool->x1, tool->y1,
 711                         tool->x2 - tool->x1, tool->y2 - tool->y1);
 712     }
 713
 714     {
 715       GList *list, *list_to_free;
 716
 717       list = list_to_free = find_selected_objects(ddisp, tool);
 718
 719       if (selection_style == SELECT_REPLACE &&
 720           !(event->state & GDK_SHIFT_MASK)) {
 721         /* Not Multi-select => Remove all selected */
 722         diagram_remove_all_selected(ddisp->diagram, TRUE);
 723       }
 724
 725       if (selection_style == SELECT_INTERSECTION) {
 726         GList *intersection = NULL;
 727
 728         while (list != NULL) {
 729           DiaObject *obj = (DiaObject *)list->data;
 730
 731           if (diagram_is_selected(ddisp->diagram, obj)) {
 732             intersection = g_list_append(intersection, obj);
 733           }
 734
 735           list = g_list_next(list);
 736         }
 737         list = intersection;
 738         diagram_remove_all_selected(ddisp->diagram, TRUE);
 739         while (list != NULL) {
 740           DiaObject *obj = (DiaObject *)list->data;
 741
 742           diagram_select(ddisp->diagram, obj);
 743
 744           list = g_list_next(list);
 745         }
 746         g_list_free(intersection);
 747       } else {
 748         while (list != NULL) {
 749           DiaObject *obj = (DiaObject *)list->data;
 750
 751           if (selection_style == SELECT_REMOVE) {
 752             if (diagram_is_selected(ddisp->diagram, obj))
 753               diagram_unselect_object(ddisp->diagram, obj);
 754           } else if (selection_style == SELECT_INVERT) {
 755             if (diagram_is_selected(ddisp->diagram, obj))
 756               diagram_unselect_object(ddisp->diagram, obj);
 757             else
 758               diagram_select(ddisp->diagram, obj);
 759           } else {
 760             if (!diagram_is_selected(ddisp->diagram, obj))
 761               diagram_select(ddisp->diagram, obj);
 762           }
 763
 764           list = g_list_next(list);
 765         }
 766       }
 767
 768       g_list_free(list_to_free);
 769
 770     }
 771
 772     if (active_obj != NULL &&
 773         diagram_is_selected(ddisp->diagram, active_obj)) {
 774       textedit_activate_object(ddisp, active_obj, NULL);
 775     } else {
 776       textedit_activate_first(ddisp);
 777     }
 778     ddisplay_do_update_menu_sensitivity(ddisp);
 779     ddisplay_flush(ddisp);
 780
 781     tool->state = STATE_NONE;
 782     break;
 783   case STATE_NONE:
 784     break;
 785   default:
 786     message_error("Internal error: Strange state in modify_tool\n");
 787
 788   }
 789 }
 790
 791 #define EDIT_BORDER_WIDTH 5
 792
 793 static gboolean
 794 modify_edit_end(GtkWidget *widget, GdkEventFocus *event, gpointer data)
 795 {
 796   GtkTextView *view = GTK_TEXT_VIEW(widget);
 797   DiaObject *obj = (DiaObject*)data;
 798   GQuark quark = g_quark_from_string(PROP_TYPE_TEXT);
 799   const PropDescription *props = obj->ops->describe_props(obj);
 800   int i;
 801
 802   printf("Ending focus\n");
 803
 804   for (i = 0; props[i].name != NULL; i++) {
 805     printf("Testing to remove: %s\n", props[i].name);
 806     if (props[i].type_quark == quark) {
 807       GPtrArray *textprops = g_ptr_array_sized_new(1);
 808       TextProperty *textprop;
 809       Property *prop = props[i].ops->new_prop(&props[i], pdtpp_true);
 810       GtkTextBuffer *buf;
 811       GtkTextIter start, end;
 812
 813       printf("Going to stop %d\n", i);
 814       buf = gtk_text_view_get_buffer(view);
 815       g_ptr_array_add(textprops, prop);
 816       obj->ops->get_props(obj, textprops);
 817       textprop = (TextProperty*)prop;
 818       if (textprop->text_data != NULL) g_free(textprop->text_data);
 819       gtk_text_buffer_get_bounds(buf, &start, &end);
 820       textprop->text_data = gtk_text_buffer_get_text(buf, &start, &end, TRUE);
 821       printf("Setting text %s\n", textprop->text_data);
 822       obj->ops->set_props(obj, textprops);
 823       gtk_widget_destroy(widget);
 824     }
 825   }
 826   return FALSE;
 827 }
 828
 829 /** Start editing the first text among selected objects, if any */
 830 static void
 831 modify_edit_first_text(DDisplay *ddisp)
 832 {
 833   GList *edits = ddisp->diagram->data->text_edits;
 834
 835   if (edits != NULL) {
 836     Text *text = (Text*)edits->data;
 837     modify_start_text_edit(ddisp, text, text->parent_object, NULL);
 838   }
 839 }
 840
 841 void
 842 modify_start_text_edit(DDisplay *ddisp, Text *text, DiaObject *obj, Point *clickedpoint)
 843 {
 844   GtkWidget *view = gtk_text_view_new();
 845   int x, y, i;
 846   GtkTextBuffer *buf;
 847   GtkTextTag *fonttag;
 848   GtkTextIter start, end;
 849   real ascent;
 850   int ascent_pixels;
 851
 852   printf("modify_start_text_edit\n");
 853   ddisplay_transform_coords(ddisp,
 854                             text->position.x,
 855                             text->position.y,
 856                             &x, &y);
 857   ascent = dia_font_scaled_ascent(text->line[0],
 858                                   text->font,
 859                                   text->height,
 860                                   ddisp->zoom_factor);
 861   printf("Text prop string %s pos %d, %d ascent %f\n",
 862          text->line[0], x, y, ascent);
 863   ascent_pixels = ddisplay_transform_length(ddisp, ascent);
 864   y -= ascent_pixels;
 865   dia_canvas_put(DIA_CANVAS(ddisp->canvas), view,
 866                  x-EDIT_BORDER_WIDTH, y-EDIT_BORDER_WIDTH);
 867   buf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(view));
 868   for (i = 0; i < text->numlines; i++) {
 869     gtk_text_buffer_insert_at_cursor(buf, text->line[i], -1);
 870   }
 871   fonttag =
 872     gtk_text_buffer_create_tag(buf,
 873                                NULL,
 874                                "font-desc",
 875                                dia_font_get_description(text->font),
 876                                NULL);
 877   gtk_text_buffer_get_bounds(buf, &start, &end);
 878   gtk_text_buffer_apply_tag(buf, fonttag, &start, &end);
 879
 880   printf("Above lines %d below %d\n",
 881          gtk_text_view_get_pixels_above_lines(GTK_TEXT_VIEW(view)),
 882          gtk_text_view_get_pixels_below_lines(GTK_TEXT_VIEW(view)));
 883
 884   gtk_text_view_set_border_window_size(GTK_TEXT_VIEW(view),
 885                                        GTK_TEXT_WINDOW_LEFT,
 886                                        EDIT_BORDER_WIDTH);
 887   gtk_text_view_set_border_window_size(GTK_TEXT_VIEW(view),
 888                                        GTK_TEXT_WINDOW_RIGHT,
 889                                        EDIT_BORDER_WIDTH);
 890   gtk_text_view_set_border_window_size(GTK_TEXT_VIEW(view),
 891                                        GTK_TEXT_WINDOW_TOP,
 892                                        EDIT_BORDER_WIDTH);
 893   gtk_text_view_set_border_window_size(GTK_TEXT_VIEW(view),
 894                                        GTK_TEXT_WINDOW_BOTTOM,
 895                                        EDIT_BORDER_WIDTH);
 896   /* Using deprecated function because the fucking gobject documentation
 897    * fucking sucks. */
 898 #ifdef NEW_TEXT_EDIT
 899   gtk_signal_connect(GTK_OBJECT(view), "focus-out-event",
 900                      modify_edit_end, obj);
 901 #endif
 902   gtk_widget_grab_focus(view);
 903   gtk_widget_show(view);
 904 }
 905
 906 void
 907 modify_make_text_edit(DDisplay *ddisp, DiaObject *obj, Point *clickedpoint)
 908 {
 909   const PropDescription *props = obj->ops->describe_props(obj);
 910   int i;
 911   for (i = 0; props[i].name != NULL; i++) {
 912     GQuark type = g_quark_from_string(PROP_TYPE_TEXT);
 913     printf("Testing %s\n", props[i].type);
 914     if (props[i].type_quark == type) {
 915       GtkWidget *view = gtk_text_view_new();
 916       GPtrArray *textprops = g_ptr_array_sized_new(1);
 917       TextProperty *textprop;
 918       Property *prop = props[i].ops->new_prop(&props[i], pdtpp_true);
 919       int x, y;
 920       GtkTextBuffer *buf;
 921       GtkTextTag *fonttag;
 922       GtkTextIter start, end;
 923       real ascent;
 924       int ascent_pixels;
 925
 926       g_ptr_array_add(textprops, prop);
 927
 928       printf("Found text prop %d\n", i);
 929       obj->ops->get_props(obj, textprops);
 930       textprop = (TextProperty*)prop;
 931       ddisplay_transform_coords(ddisp,
 932                                 textprop->attr.position.x,
 933                                 textprop->attr.position.y,
 934                                 &x, &y);
 935       ascent = dia_font_scaled_ascent(textprop->text_data,
 936                                       textprop->attr.font,
 937                                       textprop->attr.height,
 938                                       ddisp->zoom_factor);
 939       printf("Text prop string %s pos %d, %d ascent %f\n",
 940              textprop->text_data, x, y, ascent);
 941       ascent_pixels = ddisplay_transform_length(ddisp, ascent);
 942       y -= ascent_pixels;
 943       dia_canvas_put(DIA_CANVAS(ddisp->canvas), view,
 944                      x-EDIT_BORDER_WIDTH, y-EDIT_BORDER_WIDTH);
 945       buf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(view));
 946       gtk_text_buffer_insert_at_cursor(buf, textprop->text_data, -1);
 947       fonttag =
 948         gtk_text_buffer_create_tag(buf,
 949                                    NULL,
 950                                    "font-desc",
 951                                    dia_font_get_description(textprop->attr.font),
 952                                    NULL);
 953       gtk_text_buffer_get_bounds(buf, &start, &end);
 954       gtk_text_buffer_apply_tag(buf, fonttag, &start, &end);
 955
 956       printf("Above lines %d below %d\n",
 957              gtk_text_view_get_pixels_above_lines(GTK_TEXT_VIEW(view)),
 958              gtk_text_view_get_pixels_below_lines(GTK_TEXT_VIEW(view)));
 959
 960       gtk_text_view_set_border_window_size(GTK_TEXT_VIEW(view),
 961                                            GTK_TEXT_WINDOW_LEFT,
 962                                            EDIT_BORDER_WIDTH);
 963       gtk_text_view_set_border_window_size(GTK_TEXT_VIEW(view),
 964                                            GTK_TEXT_WINDOW_RIGHT,
 965                                            EDIT_BORDER_WIDTH);
 966       gtk_text_view_set_border_window_size(GTK_TEXT_VIEW(view),
 967                                            GTK_TEXT_WINDOW_TOP,
 968                                            EDIT_BORDER_WIDTH);
 969       gtk_text_view_set_border_window_size(GTK_TEXT_VIEW(view),
 970                                            GTK_TEXT_WINDOW_BOTTOM,
 971                                            EDIT_BORDER_WIDTH);
 972       /* Using deprecated function because the fucking gobject documentation
 973        * fucking sucks. */
 974 #ifdef NEW_TEXT_EDIT
 975       gtk_signal_connect(GTK_OBJECT(view), "focus-out-event",
 976                          modify_edit_end, obj);
 977 #endif
 978       gtk_widget_grab_focus(view);
 979       gtk_widget_show(view);
 980     }
 981   }
 982 }