void
diagram_unconnect_selected(Diagram *dia)
{
  GList *list;

  list = dia->data->selected;
    
  while (list!=NULL) {
    DiaObject *selected_obj = (DiaObject *) list->data;
    int i;

    for (i=0; i<selected_obj->num_handles; i++) {
      Handle *handle = selected_obj->handles[i];
      
      if ((handle->connected_to != NULL) &&
	  (handle->connect_type == HANDLE_CONNECTABLE)){
	  /* don't do this if type is HANDLE_CONNECTABLE_BREAK */
	if (!diagram_is_selected(dia, handle->connected_to->object)) {
	  Change *change = undo_unconnect(dia, selected_obj, handle);
	  (change->apply)(change, dia);
	}
      }
    }

    list = g_list_next(list);
  }
}
Beispiel #2
0
/* Remove connections from obj to objects outside created group. */
static void
strip_connections(DiaObject *obj, GList *not_strip_list, Diagram *dia)
{
  int i;
  Handle *handle;
  Change *change;

  for (i=0;i<obj->num_handles;i++) {
    handle = obj->handles[i];
    if ((handle->connected_to != NULL) &&
	(g_list_find(not_strip_list, handle->connected_to->object)==NULL)) {
      change = undo_unconnect(dia, obj, handle);
      (change->apply)(change, dia);
    }
  }
}
Beispiel #3
0
static void
modify_motion (ModifyTool     *tool,
               GdkEventMotion *event,
               DDisplay       *ddisp)
{
  Point to;
  Point now, delta, full_delta;
  gboolean auto_scroll, vertical = FALSE;
  ConnectionPoint *connectionpoint = NULL;
  ObjectChange *objchange = NULL;

  ddisplay_untransform_coords(ddisp, event->x, event->y, &to.x, &to.y);

  if (tool->state==STATE_NONE) {
    DiaObject *obj = NULL;
    Handle *handle = NULL;

    diagram_find_closest_handle (ddisp->diagram, &handle, &obj, &to);
    if  (handle && handle->type != HANDLE_NON_MOVABLE
      && handle->id >= HANDLE_RESIZE_NW && handle->id <= HANDLE_RESIZE_SE
      && handle_is_clicked(ddisp, handle, &to)
      && g_list_length (ddisp->diagram->data->selected) == 1)
      ddisplay_set_all_cursor (get_direction_cursor (CURSOR_DIRECTION_0 + handle->id));
    else
      ddisplay_set_all_cursor_name (NULL, "default");
    return; /* Fast path... */
  }
  auto_scroll = ddisplay_autoscroll(ddisp, event->x, event->y);

  if (!modify_move_already(tool, ddisp, &to)) return;

  switch (tool->state) {
  case STATE_MOVE_OBJECT:

    if (tool->orig_pos == NULL) {
      GList *list, *pla;
      int i;
      DiaObject *obj;

      /* consider non-selected children affected */
      pla = list = parent_list_affected(ddisp->diagram->data->selected);
      tool->orig_pos = g_new(Point, g_list_length(list));
      i=0;
      while (list != NULL) {
        obj = (DiaObject *)  list->data;
        tool->orig_pos[i] = obj->position;
        list = g_list_next(list); i++;
      }
      g_list_free (pla);
    }

    if (tool->break_connections)
      diagram_unconnect_selected(ddisp->diagram); /* Pushes UNDO info */

    if (gdk_event_to_dia_ModifierKeys (event->state) & MODIFIER_CONTROL) {
      full_delta = to;
      point_sub(&full_delta, &tool->start_at);
      vertical = (fabs(full_delta.x) < fabs(full_delta.y));
    }

    point_add(&to, &tool->move_compensate);
    snap_to_grid(ddisp, &to.x, &to.y);

    now = tool->object->position;

    delta = to;
    point_sub(&delta, &now);

    if (gdk_event_to_dia_ModifierKeys (event->state) & MODIFIER_CONTROL) {
      /* Up-down or left-right */
      if (vertical) {
       delta.x = tool->start_at.x + tool->move_compensate.x - now.x;
      } else {
       delta.y = tool->start_at.y + tool->move_compensate.y - now.y;
      }
    }

    object_add_updates_list(ddisp->diagram->data->selected, ddisp->diagram);
    objchange = object_list_move_delta(ddisp->diagram->data->selected, &delta);
    if (objchange != NULL) {
      undo_object_change(ddisp->diagram, tool->object, objchange);
    }
    object_add_updates_list(ddisp->diagram->data->selected, ddisp->diagram);

    object_add_updates(tool->object, ddisp->diagram);

    /* Put current mouse position in status bar */
    {
      gchar *postext;
      GtkStatusbar *statusbar = GTK_STATUSBAR (ddisp->modified_status);
      guint context_id = gtk_statusbar_get_context_id (statusbar, "ObjectPos");
      gtk_statusbar_pop (statusbar, context_id);
      postext = g_strdup_printf("%.3f, %.3f - %.3f, %.3f",
			        tool->object->bounding_box.left,
			        tool->object->bounding_box.top,
			        tool->object->bounding_box.right,
			        tool->object->bounding_box.bottom);

      gtk_statusbar_pop (statusbar, context_id);
      gtk_statusbar_push (statusbar, context_id, postext);

      g_free(postext);
    }

    diagram_update_connections_selection(ddisp->diagram);
    diagram_flush(ddisp->diagram);
    break;
  case STATE_MOVE_HANDLE:
    full_delta = to;
    point_sub(&full_delta, &tool->start_at);
    /* make sure resizing is restricted to its parent */

    /* if resize was blocked by parent, that means the resizing was
      outward, thus it won't bother the children so we don't have to
      check the children */
    if (!parent_handle_move_out_check(tool->object, &to))
      parent_handle_move_in_check(tool->object, &to, &tool->start_at);

    if (gdk_event_to_dia_ModifierKeys (event->state) & MODIFIER_CONTROL)
      vertical = (fabs(full_delta.x) < fabs(full_delta.y));

    highlight_reset_all(ddisp->diagram);
    if ((tool->handle->connect_type != HANDLE_NONCONNECTABLE)) {
      /* Move to ConnectionPoint if near: */
      connectionpoint = object_find_connectpoint_display (ddisp,
                                                          &to,
                                                          tool->object, TRUE);
      if (connectionpoint != NULL) {
        DiaHighlightType type;
        to = connectionpoint->pos;
        if (connectionpoint->flags & CP_FLAGS_MAIN) {
          type = DIA_HIGHLIGHT_CONNECTIONPOINT_MAIN;
        } else {
          type = DIA_HIGHLIGHT_CONNECTIONPOINT;
        }
        highlight_object(connectionpoint->object, type, ddisp->diagram);
        ddisplay_set_all_cursor_name (NULL, "crosshair");
      }
    }
    if (connectionpoint == NULL) {
      /* No connectionopoint near, then snap to grid (if enabled) */
      snap_to_grid(ddisp, &to.x, &to.y);
      ddisplay_set_all_cursor_name (NULL, "move");
    }

    if (tool->break_connections) {
      /* break connections to the handle currently selected. */
      if (tool->handle->connected_to!=NULL) {
        Change *change = undo_unconnect (ddisp->diagram,
                                         tool->object,
                                         tool->handle);

        (change->apply)(change, ddisp->diagram);
      }
    }

    if (gdk_event_to_dia_ModifierKeys (event->state) & MODIFIER_CONTROL) {
      /* Up-down or left-right */
      if (vertical) {
       to.x = tool->start_at.x;
      } else {
       to.y = tool->start_at.y;
      }
    }

    if (tool->orig_pos == NULL) {
      tool->orig_pos = g_new(Point, 1);
      *tool->orig_pos = tool->handle->pos;
    }

    /* Put current mouse position in status bar */
    {
      gchar *postext;
      GtkStatusbar *statusbar = GTK_STATUSBAR (ddisp->modified_status);
      guint context_id = gtk_statusbar_get_context_id (statusbar, "ObjectPos");

      if (tool->object) { /* play safe */
        real w = tool->object->bounding_box.right - tool->object->bounding_box.left;
        real h = tool->object->bounding_box.bottom - tool->object->bounding_box.top;
        postext = g_strdup_printf("%.3f, %.3f (%.3fx%.3f)", to.x, to.y, w, h);
      } else {
        postext = g_strdup_printf("%.3f, %.3f", to.x, to.y);
      }

      gtk_statusbar_pop (statusbar, context_id);
      gtk_statusbar_push (statusbar, context_id, postext);

      g_free(postext);
    }

    object_add_updates(tool->object, ddisp->diagram);

    /* Handle undo */
    if (tool->object)
      objchange = tool->object->ops->move_handle(tool->object, tool->handle,
					         &to, connectionpoint,
					         HANDLE_MOVE_USER, gdk_event_to_dia_ModifierKeys(event->state));
    if (objchange != NULL) {
      undo_object_change(ddisp->diagram, tool->object, objchange);
    }
    object_add_updates(tool->object, ddisp->diagram);

    diagram_update_connections_selection(ddisp->diagram);
    diagram_flush(ddisp->diagram);
    break;
  case STATE_BOX_SELECT:
    tool->end_box = to;

    ddisplay_transform_coords (ddisp,
                               MIN (tool->start_box.x, tool->end_box.x),
                               MIN (tool->start_box.y, tool->end_box.y),
                               &tool->x1, &tool->y1);
    ddisplay_transform_coords (ddisp,
                               MAX (tool->start_box.x, tool->end_box.x),
                               MAX (tool->start_box.y, tool->end_box.y),
                               &tool->x2, &tool->y2);

    dia_interactive_renderer_set_selection (ddisp->renderer,
                                            TRUE,
                                            tool->x1,
                                            tool->y1,
                                            tool->x2 - tool->x1,
                                            tool->y2 - tool->y1);
    ddisplay_flush (ddisp);

    break;
  case STATE_NONE:
    break;
  default:
    message_error("Internal error: Strange state in modify_tool\n");
  }

  tool->last_to = to;
  tool->auto_scrolled = auto_scroll;
}
Beispiel #4
0
void
diagram_selected_break_external(Diagram *dia)
{
  GList *list;
  GList *connected_list;
  DiaObject *obj;
  DiaObject *other_obj;
  int i,j;

  list = dia->data->selected;
  while (list != NULL) {
    obj = (DiaObject *)list->data;
    
    /* Break connections between this object and objects not selected: */
    for (i=0;i<obj->num_handles;i++) {
      ConnectionPoint *con_point;
      con_point = obj->handles[i]->connected_to;
      
      if ( con_point == NULL )
	break; /* Not connected */
      
      other_obj = con_point->object;
      if (g_list_find(dia->data->selected, other_obj) == NULL) {
	/* other_obj is not selected, break connection */
	Change *change = undo_unconnect(dia, obj, obj->handles[i]);
	(change->apply)(change, dia);
	object_add_updates(obj, dia);
      }
    }
    
    /* Break connections from non selected objects to this object: */
    for (i=0;i<obj->num_connections;i++) {
      connected_list = obj->connections[i]->connected;
      
      while (connected_list != NULL) {
	other_obj = (DiaObject *)connected_list->data;
	
	if (g_list_find(dia->data->selected, other_obj) == NULL) {
	  /* other_obj is not in list, break all connections
	     to obj from other_obj */
	  
	  for (j=0;j<other_obj->num_handles;j++) {
	    ConnectionPoint *con_point;
	    con_point = other_obj->handles[j]->connected_to;

	    if (con_point && (con_point->object == obj)) {
	      Change *change;
	      connected_list = g_list_previous(connected_list);
	      change = undo_unconnect(dia, other_obj,
					      other_obj->handles[j]);
	      (change->apply)(change, dia);
	      if (connected_list == NULL)
		connected_list = obj->connections[i]->connected;
	    }
	  }
	}
	
	connected_list = g_list_next(connected_list);
      }
    }

    list = g_list_next(list);
  }
}