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/*
* Copyright 2000-2013 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.ide.palette.impl;
import com.intellij.ide.dnd.DnDEvent;
import com.intellij.ide.dnd.DnDManager;
import com.intellij.ide.dnd.DnDTarget;
import com.intellij.ide.palette.PaletteGroup;
import com.intellij.ide.palette.PaletteItem;
import com.intellij.openapi.actionSystem.*;
import com.intellij.openapi.project.Project;
import com.intellij.ui.PopupHandler;
import com.intellij.util.ui.UIUtil;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.Nullable;
import javax.swing.*;
import javax.swing.border.CompoundBorder;
import java.awt.*;
import java.awt.event.*;
/**
* @author yole
*/
public class PaletteGroupHeader extends JCheckBox implements DataProvider {
private final PaletteWindow myPaletteWindow;
private PaletteComponentList myComponentList;
private final PaletteGroup myGroup;
public PaletteGroupHeader(PaletteWindow paletteWindow, PaletteGroup group) {
myPaletteWindow = paletteWindow;
myGroup = group;
if (group.getName() == null) {
setVisible(false);
}
else {
setText(group.getName());
}
setSelected(true);
addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (myComponentList != null) {
myComponentList.setVisible(isSelected());
}
}
});
addMouseListener(new PopupHandler() {
public void invokePopup(Component comp, int x, int y) {
myPaletteWindow.setLastFocusedGroup(PaletteGroupHeader.this);
showGroupPopupMenu(comp, x, y);
}
});
setIcon(UIUtil.getTreeCollapsedIcon());
setSelectedIcon(UIUtil.getTreeExpandedIcon());
setFont(getFont().deriveFont(Font.BOLD));
setFocusPainted(false);
setMargin(new Insets(0, 3, 0, 3));
setOpaque(true);
if (getBorder() instanceof CompoundBorder) { // from BasicLookAndFeel
Dimension pref = getPreferredSize();
pref.height -= 3;
setPreferredSize(pref);
}
DnDManager.getInstance().registerTarget(new DnDTarget() {
public boolean update(DnDEvent aEvent) {
setBorderPainted(true);
aEvent.setDropPossible(aEvent.getAttachedObject() instanceof PaletteItem);
return true;
}
public void drop(DnDEvent aEvent) {
setBorderPainted(false);
if (aEvent.getAttachedObject() instanceof PaletteItem) {
myGroup.handleDrop(myPaletteWindow.getProject(), (PaletteItem) aEvent.getAttachedObject(), -1);
}
}
public void cleanUpOnLeave() {
setBorderPainted(false);
}
public void updateDraggedImage(Image image, Point dropPoint, Point imageOffset) {
}
}, this);
addFocusListener(new FocusAdapter() {
@Override public void focusGained(FocusEvent e) {
myPaletteWindow.setLastFocusedGroup(PaletteGroupHeader.this);
}
});
initActions();
}
public void showGroupPopupMenu(final Component comp, final int x, final int y) {
ActionGroup group = myGroup.getPopupActionGroup();
if (group != null) {
ActionPopupMenu popupMenu = ActionManager.getInstance().createActionPopupMenu(ActionPlaces.UNKNOWN, group);
popupMenu.getComponent().show(comp, x, y);
}
}
private void initActions() {
@NonNls InputMap inputMap = getInputMap(WHEN_FOCUSED);
inputMap.put(KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, 0, false), "moveFocusDown");
inputMap.put(KeyStroke.getKeyStroke(KeyEvent.VK_UP, 0, false), "moveFocusUp");
inputMap.put(KeyStroke.getKeyStroke(KeyEvent.VK_LEFT, 0, false), "collapse");
inputMap.put(KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, 0, false), "expand");
@NonNls ActionMap actionMap = getActionMap();
actionMap.put("moveFocusDown", new MoveFocusAction(true));
actionMap.put("moveFocusUp", new MoveFocusAction(false));
actionMap.put("collapse", new ExpandAction(false));
actionMap.put("expand", new ExpandAction(true));
}
@Override public Color getBackground() {
if (isFocusOwner()) {
return UIUtil.getListSelectionBackground();
}
return super.getBackground();
}
@Override public Color getForeground() {
if (isFocusOwner()) {
return UIUtil.getListSelectionForeground();
}
return super.getForeground();
}
public void setComponentList(final PaletteComponentList componentList) {
myComponentList = componentList;
}
public PaletteComponentList getComponentList() {
return myComponentList;
}
public PaletteGroup getGroup() {
return myGroup;
}
@Nullable public Object getData(String dataId) {
Object data = myPaletteWindow.getData(dataId);
if (data != null) return data;
Project project = CommonDataKeys.PROJECT.getData(myPaletteWindow);
return myGroup.getData(project, dataId);
}
private class MoveFocusAction extends AbstractAction {
private final boolean moveDown;
public MoveFocusAction(boolean moveDown) {
this.moveDown = moveDown;
}
public void actionPerformed(ActionEvent e) {
KeyboardFocusManager kfm = KeyboardFocusManager.getCurrentKeyboardFocusManager();
Container container = kfm.getCurrentFocusCycleRoot();
FocusTraversalPolicy policy = container.getFocusTraversalPolicy();
if (null == policy) policy = kfm.getDefaultFocusTraversalPolicy();
Component next =
moveDown ? policy.getComponentAfter(container, PaletteGroupHeader.this) : policy.getComponentBefore(container, PaletteGroupHeader.this);
if (null != next && next instanceof PaletteComponentList) {
final PaletteComponentList list = (PaletteComponentList)next;
if (list.getModel().getSize() != 0) {
list.takeFocusFrom(PaletteGroupHeader.this, list == myComponentList ? 0 : -1);
return;
}
else {
next = moveDown ? policy.getComponentAfter(container, next) : policy.getComponentBefore(container, next);
}
}
if (null != next && next instanceof PaletteGroupHeader) {
next.requestFocus();
}
}
}
private class ExpandAction extends AbstractAction {
private final boolean expand;
public ExpandAction(boolean expand) {
this.expand = expand;
}
public void actionPerformed(ActionEvent e) {
if (expand == isSelected()) return;
setSelected(expand);
if (myComponentList != null) {
myComponentList.setVisible(isSelected());
}
}
}
}
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