/*
* Copyright 2000-2012 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.ui.popup.list;
import com.intellij.icons.AllIcons;
import com.intellij.openapi.actionSystem.Shortcut;
import com.intellij.openapi.actionSystem.ShortcutProvider;
import com.intellij.openapi.actionSystem.ShortcutSet;
import com.intellij.openapi.keymap.KeymapUtil;
import com.intellij.openapi.ui.popup.ListItemDescriptorAdapter;
import com.intellij.openapi.ui.popup.ListPopupStep;
import com.intellij.openapi.ui.popup.ListPopupStepEx;
import com.intellij.openapi.ui.popup.util.BaseListPopupStep;
import com.intellij.ui.ColorUtil;
import com.intellij.ui.IdeBorderFactory;
import com.intellij.util.ArrayUtil;
import com.intellij.util.ui.UIUtil;
import org.jetbrains.annotations.Nullable;
import javax.swing.*;
import java.awt.*;
public class PopupListElementRenderer<E> extends GroupedItemsListRenderer<E> {
private final ListPopupImpl myPopup;
private JLabel myShortcutLabel;
public PopupListElementRenderer(final ListPopupImpl aPopup) {
super(new ListItemDescriptorAdapter<E>() {
@Override
public String getTextFor(E value) {
return aPopup.getListStep().getTextFor(value);
}
@Override
public Icon getIconFor(E value) {
return aPopup.getListStep().getIconFor(value);
}
@Override
public boolean hasSeparatorAboveOf(E value) {
return aPopup.getListModel().isSeparatorAboveOf(value);
}
@Override
public String getCaptionAboveOf(E value) {
return aPopup.getListModel().getCaptionAboveOf(value);
}
@Nullable
@Override
public String getTooltipFor(E value) {
ListPopupStep<Object> listStep = aPopup.getListStep();
if (!(listStep instanceof ListPopupStepEx)) return null;
return ((ListPopupStepEx<E>)listStep).getTooltipTextFor(value);
}
});
myPopup = aPopup;
}
@Override
protected JComponent createItemComponent() {
JPanel panel = new JPanel(new BorderLayout());
createLabel();
panel.add(myTextLabel, BorderLayout.CENTER);
myShortcutLabel = new JLabel();
myShortcutLabel.setBorder(IdeBorderFactory.createEmptyBorder(0, 0, 0, 3));
Color color = UIManager.getColor("MenuItem.acceleratorForeground");
myShortcutLabel.setForeground(color);
panel.add(myShortcutLabel, BorderLayout.EAST);
return layoutComponent(panel);
}
@Override
protected void customizeComponent(JList<? extends E> list, E value, boolean isSelected) {
ListPopupStep<Object> step = myPopup.getListStep();
boolean isSelectable = step.isSelectable(value);
myTextLabel.setEnabled(isSelectable);
if (!isSelected && step instanceof BaseListPopupStep) {
Color bg = ((BaseListPopupStep)step).getBackgroundFor(value);
Color fg = ((BaseListPopupStep)step).getForegroundFor(value);
if (fg != null) myTextLabel.setForeground(fg);
if (bg != null) UIUtil.setBackgroundRecursively(myComponent, bg);
}
if (step.isMnemonicsNavigationEnabled()) {
final int pos = step.getMnemonicNavigationFilter().getMnemonicPos(value);
if (pos != -1) {
String text = myTextLabel.getText();
text = text.substring(0, pos) + text.substring(pos + 1);
myTextLabel.setText(text);
myTextLabel.setDisplayedMnemonicIndex(pos);
}
}
else {
myTextLabel.setDisplayedMnemonicIndex(-1);
}
if (step.hasSubstep(value) && isSelectable) {
myNextStepLabel.setVisible(true);
final boolean isDark = ColorUtil.isDark(UIUtil.getListSelectionBackground());
myNextStepLabel.setIcon(isSelected ? isDark ? AllIcons.Icons.Ide.NextStepInverted
: AllIcons.Icons.Ide.NextStep
: AllIcons.Icons.Ide.NextStepGrayed);
}
else {
myNextStepLabel.setVisible(false);
//myNextStepLabel.setIcon(PopupIcons.EMPTY_ICON);
}
setSelected(myNextStepLabel, isSelected);
if (myShortcutLabel != null) {
myShortcutLabel.setText("");
if (value instanceof ShortcutProvider) {
ShortcutSet set = ((ShortcutProvider)value).getShortcut();
if (set != null) {
Shortcut shortcut = ArrayUtil.getFirstElement(set.getShortcuts());
if (shortcut != null) {
myShortcutLabel.setText(" " + KeymapUtil.getShortcutText(shortcut));
}
}
}
setSelected(myShortcutLabel, isSelected);
myShortcutLabel.setForeground(isSelected ? UIManager.getColor("MenuItem.acceleratorSelectionForeground") : UIManager.getColor("MenuItem.acceleratorForeground"));
}
}
}