static void
scroll_button_press(ScrollTool *tool, GdkEventButton *event,
		     DDisplay *ddisp)
{
  Point clickedpoint;

  tool->use_hand = (event->state & GDK_SHIFT_MASK) != 0;
  if (tool->use_hand) {
    if (!closed_hand_cursor)
      closed_hand_cursor = create_cursor(ddisp->canvas->window,
					 hand_closed_data_bits,
					 hand_closed_data_width,
					 hand_closed_data_height,
					 hand_closed_mask_bits,
					 hand_closed_data_width/2,
					 hand_closed_data_height/2);
    ddisplay_set_all_cursor(closed_hand_cursor);
  } else
    ddisplay_set_all_cursor(scroll_cursor);

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

  tool->scrolling = TRUE;
  tool->last_pos = clickedpoint;
}
Exemple #2
0
static void
modify_double_click(ModifyTool *tool, GdkEventButton *event,
		    DDisplay *ddisp)
{
  Point clickedpoint;
  DiaObject *clicked_obj;

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

  clicked_obj = click_select_object(ddisp, &clickedpoint, event);

  if ( clicked_obj != NULL ) {
    object_list_properties_show(ddisp->diagram, ddisp->diagram->data->selected);
  } else { /* No object selected */
    /*printf("didn't select object\n");*/
    if (!(event->state & GDK_SHIFT_MASK)) {
      /* Not Multi-select => Remove all selected */
      ddisplay_do_update_menu_sensitivity(ddisp);
      diagram_remove_all_selected(ddisp->diagram, TRUE);
      diagram_flush(ddisp->diagram);
    }
  }
}
Exemple #3
0
static void
modify_button_press(ModifyTool *tool, GdkEventButton *event,
		     DDisplay *ddisp)
{
  Point clickedpoint;
  DiaObject *clicked_obj;
  gboolean some_selected;

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

  /* don't got to single handle movement if there is more than one object selected */
  some_selected = g_list_length (ddisp->diagram->data->selected) > 1;
  if (!some_selected && do_if_clicked_handle(ddisp, tool, &clickedpoint, event))
    return;
  
  clicked_obj = click_select_object(ddisp, &clickedpoint, event);
  if (!some_selected && do_if_clicked_handle(ddisp, tool, &clickedpoint, event))
    return;

  if ( clicked_obj != NULL ) {
    tool->state = STATE_MOVE_OBJECT;
    tool->object = clicked_obj;
    tool->move_compensate = clicked_obj->position;
    point_sub(&tool->move_compensate, &clickedpoint);
    tool->break_connections = TRUE; /* unconnect when not grabbing handles, just setting to
				      * FALSE is not enough. Need to refine the move op, too. */
    gdk_pointer_grab (gtk_widget_get_window(ddisp->canvas), FALSE,
                      GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON1_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
                      NULL, NULL, event->time);
    tool->start_at = clickedpoint;
    tool->start_time = time_micro();
    ddisplay_set_all_cursor(get_cursor(CURSOR_SCROLL));
  } else {
    tool->state = STATE_BOX_SELECT;
    tool->start_box = clickedpoint;
    tool->end_box = clickedpoint;
    tool->x1 = tool->x2 = (int) event->x;
    tool->y1 = tool->y2 = (int) event->y;

    if (tool->gc == NULL) {
      tool->gc = gdk_gc_new(gtk_widget_get_window(ddisp->canvas));
      gdk_gc_set_line_attributes(tool->gc, 1, GDK_LINE_ON_OFF_DASH, 
				 GDK_CAP_BUTT, GDK_JOIN_MITER);
      gdk_gc_set_foreground(tool->gc, &color_gdk_white);
      gdk_gc_set_function(tool->gc, GDK_XOR);
    }

    gdk_draw_rectangle (gtk_widget_get_window (ddisp->canvas), tool->gc, FALSE,
			tool->x1, tool->y1,
			tool->x2 - tool->x1, tool->y2 - tool->y1);

    gdk_pointer_grab (gtk_widget_get_window (ddisp->canvas), FALSE,
                      GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON1_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
                      NULL, NULL, event->time);
  }
}
Exemple #4
0
/*!
 * Remember the last clicked point given in pixel coodinates
 */
void 
ddisplay_set_clicked_point(DDisplay *ddisp, int x, int y)
{
  Point pt;

  ddisplay_untransform_coords(ddisp, x, y, &pt.x, &pt.y);
  
  ddisp->clicked_position = pt;
}
static void
scroll_motion(ScrollTool *tool, GdkEventMotion *event,
	      DDisplay *ddisp)
{
  Point to;
  Point delta;

  /* set the cursor appropriately, and change use_hand if needed */
  if (!tool->scrolling) {
    /* try to minimise the number of cursor type changes */
    if ((event->state & GDK_SHIFT_MASK) != 0) {
      if (!tool->use_hand) {
	tool->use_hand = TRUE;
	if (!open_hand_cursor)
	  open_hand_cursor = create_cursor(ddisp->canvas->window,
					   hand_open_data_bits,
					   hand_open_data_width,
					   hand_open_data_height,
					   hand_open_mask_bits,
					   hand_open_data_width/2,
					   hand_open_data_height/2);
	ddisplay_set_all_cursor(open_hand_cursor);
      }
    } else
      if (tool->use_hand) {
	tool->use_hand = FALSE;
	ddisplay_set_all_cursor(scroll_cursor);
      }
    return;
  }

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

  if (tool->use_hand) {
    delta = tool->last_pos;
    point_sub(&delta, &to);

    tool->last_pos = to;
    point_add(&tool->last_pos, &delta);

    /* we use this so you can scroll past the edge of the image */
    point_add(&delta, &ddisp->origo);
    ddisplay_set_origo(ddisp, delta.x, delta.y);
    ddisplay_update_scrollbars(ddisp);
    ddisplay_add_update_all(ddisp);
  } else {
    delta = to;
    point_sub(&delta, &tool->last_pos);
    point_scale(&delta, 0.5);

    ddisplay_scroll(ddisp, &delta);
    tool->last_pos = to;
  }
  ddisplay_flush(ddisp);
}
Exemple #6
0
static void
modify_button_press(ModifyTool *tool, GdkEventButton *event,
		     DDisplay *ddisp)
{
  Point clickedpoint;
  DiaObject *clicked_obj;
  gboolean some_selected;

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

  /* don't got to single handle movement if there is more than one object selected */
  some_selected = g_list_length (ddisp->diagram->data->selected) > 1;
  if (!some_selected && do_if_clicked_handle(ddisp, tool, &clickedpoint, event))
    return;

  clicked_obj = click_select_object(ddisp, &clickedpoint, event);
  if (!some_selected && do_if_clicked_handle(ddisp, tool, &clickedpoint, event))
    return;

  if ( clicked_obj != NULL ) {
    tool->state = STATE_MOVE_OBJECT;
    tool->object = clicked_obj;
    tool->move_compensate = clicked_obj->position;
    point_sub(&tool->move_compensate, &clickedpoint);
    tool->break_connections = TRUE; /* unconnect when not grabbing handles, just setting to
				      * FALSE is not enough. Need to refine the move op, too. */
    gdk_pointer_grab (gtk_widget_get_window(ddisp->canvas), FALSE,
                      GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON1_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
                      NULL, NULL, event->time);
    tool->start_at = clickedpoint;
    tool->start_time = time_micro();
    ddisplay_set_all_cursor_name (NULL, "move");
  } else {
    tool->state = STATE_BOX_SELECT;
    tool->start_box = clickedpoint;
    tool->end_box = clickedpoint;
    tool->x1 = tool->x2 = (int) event->x;
    tool->y1 = tool->y2 = (int) event->y;

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

    gdk_pointer_grab (gtk_widget_get_window (ddisp->canvas), FALSE,
                      GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON1_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
                      NULL, NULL, event->time);
  }
}
Exemple #7
0
static void
modify_button_hold(ModifyTool *tool, GdkEventButton *event,
		DDisplay *ddisp)
{
  Point clickedpoint;

  switch (tool->state) {
  case STATE_MOVE_OBJECT:
    /* A button hold is as if user was moving object - if it is
     * a text object and can be edited, then the move is cancelled */
    ddisplay_untransform_coords(ddisp,
				(int)event->x, (int)event->y,
				&clickedpoint.x, &clickedpoint.y);

    if (tool->object != NULL &&
	diagram_is_selected(ddisp->diagram, tool->object)) {
      if (textedit_activate_object(ddisp, tool->object, &clickedpoint)) {
	/* Return tool to normal state - object is text and is in edit */
	gdk_pointer_ungrab (event->time);
	tool->orig_pos = NULL;
	tool->state = STATE_NONE;
	/* Activate Text Edit */
	gtk_action_activate (menus_get_action ("ToolsTextedit"));
      }
    }
    break;
  case STATE_MOVE_HANDLE:
    break;
  case STATE_BOX_SELECT:
    break;
  case STATE_NONE:
    break;
  default:
    message_error("Internal error: Strange state in modify_tool (button_hold)\n");
  }
}
Exemple #8
0
static void
modify_button_release(ModifyTool *tool, GdkEventButton *event,
		      DDisplay *ddisp)
{
  Point *dest_pos, to;
  GList *list;
  int i;
  ObjectChange *objchange;

  tool->break_connections = FALSE;
  ddisplay_set_all_cursor(default_cursor);

  /* remove position from status bar */
  {
    GtkStatusbar *statusbar = GTK_STATUSBAR (ddisp->modified_status);
    guint context_id = gtk_statusbar_get_context_id (statusbar, "ObjectPos");
    gtk_statusbar_pop (statusbar, context_id);
  }
  switch (tool->state) {
  case STATE_MOVE_OBJECT:
    /* Return to normal state */
    gdk_pointer_ungrab (event->time);

    ddisplay_untransform_coords(ddisp, event->x, event->y, &to.x, &to.y);
    if (!modify_move_already(tool, ddisp, &to)) {
      tool->orig_pos = NULL;
      tool->state = STATE_NONE;
      return;
    }

    diagram_update_connections_selection(ddisp->diagram);

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

      undo_move_objects(ddisp->diagram, tool->orig_pos, dest_pos,
			parent_list_affected(ddisp->diagram->data->selected));
    }

    ddisplay_connect_selected(ddisp); /* pushes UNDO info */
    diagram_update_extents(ddisp->diagram);
    diagram_modified(ddisp->diagram);
    diagram_flush(ddisp->diagram);

    undo_set_transactionpoint(ddisp->diagram->undo);

    tool->orig_pos = NULL;
    tool->state = STATE_NONE;
    break;
  case STATE_MOVE_HANDLE:
    gdk_pointer_ungrab (event->time);
    tool->state = STATE_NONE;

    if (tool->orig_pos != NULL) {
      undo_move_handle(ddisp->diagram, tool->handle, tool->object,
		       *tool->orig_pos, tool->last_to, gdk_event_to_dia_ModifierKeys(event->state));
    }

    /* Final move: */
    object_add_updates(tool->object, ddisp->diagram);
    objchange = tool->object->ops->move_handle(tool->object, tool->handle,
					       &tool->last_to, NULL,
					       HANDLE_MOVE_USER_FINAL,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);

    /* Connect if possible: */
    if (tool->handle->connect_type != HANDLE_NONCONNECTABLE) {
      object_connect_display(ddisp, tool->object, tool->handle, TRUE); /* pushes UNDO info */
      diagram_update_connections_selection(ddisp->diagram);
    }

    highlight_reset_all(ddisp->diagram);
    diagram_flush(ddisp->diagram);

    diagram_modified(ddisp->diagram);
    diagram_update_extents(ddisp->diagram);

    undo_set_transactionpoint(ddisp->diagram->undo);

    if (tool->orig_pos != NULL) {
      g_free(tool->orig_pos);
      tool->orig_pos = NULL;
    }

    break;
  case STATE_BOX_SELECT:

    gdk_pointer_ungrab (event->time);
    /* Remove last box: */
    dia_interactive_renderer_set_selection (ddisp->renderer,
                                            FALSE, 0, 0, 0, 0);

    {
      GList *list, *list_to_free;

      list = list_to_free = find_selected_objects(ddisp, tool);

      if (selection_style == SELECT_REPLACE &&
          !(event->state & GDK_SHIFT_MASK)) {
        /* Not Multi-select => Remove all selected */
        diagram_remove_all_selected(ddisp->diagram, TRUE);
      }

      if (selection_style == SELECT_INTERSECTION) {
        GList *intersection = NULL;

        while (list != NULL) {
          DiaObject *obj = (DiaObject *)list->data;

          if (diagram_is_selected(ddisp->diagram, obj)) {
            intersection = g_list_append(intersection, obj);
          }

          list = g_list_next(list);
        }
        list = intersection;
        diagram_remove_all_selected(ddisp->diagram, TRUE);
        while (list != NULL) {
          DiaObject *obj = (DiaObject *)list->data;

          diagram_select(ddisp->diagram, obj);

          list = g_list_next(list);
        }
        g_list_free(intersection);
      } else {
        while (list != NULL) {
          DiaObject *obj = (DiaObject *)list->data;

          if (selection_style == SELECT_REMOVE) {
            if (diagram_is_selected(ddisp->diagram, obj))
              diagram_unselect_object(ddisp->diagram, obj);
          } else if (selection_style == SELECT_INVERT) {
            if (diagram_is_selected(ddisp->diagram, obj))
              diagram_unselect_object(ddisp->diagram, obj);
            else
              diagram_select(ddisp->diagram, obj);
          } else {
            if (!diagram_is_selected(ddisp->diagram, obj))
              diagram_select(ddisp->diagram, obj);
          }

          list = g_list_next(list);
        }
      }

      g_list_free(list_to_free);

    }

    ddisplay_do_update_menu_sensitivity(ddisp);
    ddisplay_flush(ddisp);

    tool->state = STATE_NONE;
    break;
  case STATE_NONE:
    break;
  default:
    message_error("Internal error: Strange state in modify_tool\n");

  }
}
Exemple #9
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;
}
Exemple #10
0
static void
create_object_button_press(CreateObjectTool *tool, GdkEventButton *event,
			   DDisplay *ddisp)
{
  Point clickedpoint, origpoint;
  Handle *handle1;
  Handle *handle2;
  DiaObject *obj;
  real click_distance;

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

  origpoint = clickedpoint;

  snap_to_grid(ddisp, &clickedpoint.x, &clickedpoint.y);

  click_distance = ddisplay_untransform_length(ddisp, 3.0);

  obj = dia_object_default_create (tool->objtype, &clickedpoint,
                                   tool->user_data,
                                   &handle1, &handle2);

  tool->obj = obj; /* ensure that tool->obj is initialised in case we
		      return early. */
  if (!obj) {
    tool->moving = FALSE;
    tool->handle = NULL;
    message_error(_("'%s' creation failed"), tool->objtype ? tool->objtype->name : "NULL");
    return;
  }

  diagram_add_object(ddisp->diagram, obj);

  /* Try a connect */
  if (handle1 != NULL &&
      handle1->connect_type != HANDLE_NONCONNECTABLE) {
    ConnectionPoint *connectionpoint;
    connectionpoint =
      object_find_connectpoint_display(ddisp, &origpoint, obj, TRUE);
    if (connectionpoint != NULL) {
      (obj->ops->move)(obj, &origpoint);
    }
  }
  
  if (!(event->state & GDK_SHIFT_MASK)) {
    /* Not Multi-select => remove current selection */
    diagram_remove_all_selected(ddisp->diagram, TRUE);
  }
  diagram_select(ddisp->diagram, obj);

  /* Connect first handle if possible: */
  if ((handle1!= NULL) &&
      (handle1->connect_type != HANDLE_NONCONNECTABLE)) {
    object_connect_display(ddisp, obj, handle1, TRUE);
  }

  object_add_updates(obj, ddisp->diagram);
  ddisplay_do_update_menu_sensitivity(ddisp);
  diagram_flush(ddisp->diagram);
  
  if (handle2 != NULL) {
    tool->handle = handle2;
    tool->moving = TRUE;
    tool->last_to = handle2->pos;
    
    gdk_pointer_grab (gtk_widget_get_window(ddisp->canvas), FALSE,
		      GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON1_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
		      NULL, NULL, event->time);
    ddisplay_set_all_cursor(get_cursor(CURSOR_SCROLL));
  } else {
    diagram_update_extents(ddisp->diagram);
    tool->moving = FALSE;
  }

}
Exemple #11
0
static void
create_object_motion(CreateObjectTool *tool, GdkEventMotion *event,
		   DDisplay *ddisp)
{
  Point to;
  ConnectionPoint *connectionpoint = NULL;
  gchar *postext;
  GtkStatusbar *statusbar;
  guint context_id;

  if (!tool->moving)
    return;
  
  ddisplay_untransform_coords(ddisp, event->x, event->y, &to.x, &to.y);

  /* make sure the new object is restricted to its parent */
  parent_handle_move_out_check(tool->obj, &to);

  /* Move to ConnectionPoint if near: */
  if (tool->handle != NULL &&
      tool->handle->connect_type != HANDLE_NONCONNECTABLE) {
    connectionpoint =
      object_find_connectpoint_display(ddisp, &to, tool->obj, TRUE);
    
    if (connectionpoint != NULL) {
      to = connectionpoint->pos;
      highlight_object(connectionpoint->object, DIA_HIGHLIGHT_CONNECTIONPOINT, ddisp->diagram);
      ddisplay_set_all_cursor(get_cursor(CURSOR_CONNECT));
    }
  }
  
  if (connectionpoint == NULL) {
    /* No connectionopoint near, then snap to grid (if enabled) */
    snap_to_grid(ddisp, &to.x, &to.y);
    highlight_reset_all(ddisp->diagram);
    ddisplay_set_all_cursor(get_cursor(CURSOR_SCROLL));
  }
      
  object_add_updates(tool->obj, ddisp->diagram);
  tool->obj->ops->move_handle(tool->obj, tool->handle, &to, connectionpoint,
			      HANDLE_MOVE_CREATE, 0);
  object_add_updates(tool->obj, ddisp->diagram);

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

  g_free(postext);
  
  diagram_flush(ddisp->diagram);

  tool->last_to = to;
  
  return;
}