/* pushes undo info */ void object_connect_display(DDisplay *ddisp, DiaObject *obj, Handle *handle, gboolean snap_to_objects) { ConnectionPoint *connectionpoint; if (handle == NULL) return; if (handle->connected_to == NULL) { connectionpoint = object_find_connectpoint_display(ddisp, &handle->pos, obj, snap_to_objects); if (connectionpoint != NULL) { Change *change = undo_connect(ddisp->diagram, obj, handle, connectionpoint); (change->apply)(change, ddisp->diagram); } } }
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; }
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; } }
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; }