| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.uiDesigner.actions; |
| |
| import com.intellij.openapi.actionSystem.AnAction; |
| import com.intellij.openapi.actionSystem.AnActionEvent; |
| import com.intellij.openapi.actionSystem.Presentation; |
| import com.intellij.uiDesigner.FormEditingUtil; |
| import com.intellij.uiDesigner.SelectionState; |
| import com.intellij.uiDesigner.componentTree.ComponentPtr; |
| import com.intellij.uiDesigner.componentTree.ComponentTreeBuilder; |
| import com.intellij.uiDesigner.designSurface.GuiEditor; |
| import com.intellij.uiDesigner.propertyInspector.DesignerToolWindowManager; |
| |
| import java.util.Stack; |
| |
| /** |
| * @author Anton Katilin |
| * @author Vladimir Kondratyev |
| */ |
| public final class ShrinkSelectionAction extends AnAction{ |
| public void actionPerformed(final AnActionEvent e) { |
| final GuiEditor editor = FormEditingUtil.getEditorFromContext(e.getDataContext()); |
| assert editor != null; |
| final SelectionState selectionState = editor.getSelectionState(); |
| selectionState.setInsideChange(true); |
| ComponentTreeBuilder builder = DesignerToolWindowManager.getInstance(editor).getComponentTreeBuilder(); |
| builder.beginUpdateSelection(); |
| |
| try{ |
| final Stack<ComponentPtr[]> history = selectionState.getSelectionHistory(); |
| history.pop(); |
| SelectionState.restoreSelection(editor, history.peek()); |
| } |
| finally{ |
| builder.endUpdateSelection(); |
| selectionState.setInsideChange(false); |
| } |
| } |
| |
| public void update(final AnActionEvent e) { |
| final Presentation presentation = e.getPresentation(); |
| final GuiEditor editor = FormEditingUtil.getEditorFromContext(e.getDataContext()); |
| if(editor == null){ |
| presentation.setEnabled(false); |
| return; |
| } |
| |
| final Stack<ComponentPtr[]> history = editor.getSelectionState().getSelectionHistory(); |
| presentation.setEnabled(history.size() > 1); |
| } |
| } |