| /* |
| * 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.ui; |
| |
| import com.intellij.util.ui.UIUtil; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import javax.swing.*; |
| import java.awt.*; |
| |
| /** |
| * @author Vladimir Kondratyev |
| */ |
| public abstract class ColoredListCellRenderer<T> extends SimpleColoredComponent implements ListCellRenderer { |
| private final ListCellRenderer myDefaultGtkRenderer = UIUtil.isUnderGTKLookAndFeel() ? new JComboBox().getRenderer() : null; |
| |
| protected boolean mySelected; |
| protected Color myForeground; |
| protected Color mySelectionForeground; |
| @Nullable |
| private final JComboBox myComboBox; |
| |
| public ColoredListCellRenderer() { |
| this(null); |
| } |
| |
| public ColoredListCellRenderer(@Nullable JComboBox comboBox) { |
| myComboBox = comboBox; |
| setFocusBorderAroundIcon(true); |
| getIpad().left = UIUtil.getListCellHPadding(); |
| getIpad().right = UIUtil.getListCellHPadding(); |
| } |
| |
| public Component getListCellRendererComponent(JList list, Object value, int index, boolean selected, boolean hasFocus) { |
| clear(); |
| |
| if (myComboBox != null) { |
| setEnabled(myComboBox.isEnabled()); |
| } |
| setFont(list.getFont()); |
| mySelected = selected; |
| myForeground = list.getForeground(); |
| mySelectionForeground = list.getSelectionForeground(); |
| if (UIUtil.isWinLafOnVista()) { |
| // the system draws a gradient background on the combobox selected item - don't overdraw it with our solid background |
| if (index == -1) { |
| setOpaque(false); |
| mySelected = false; |
| } |
| else { |
| setOpaque(true); |
| setBackground(selected ? list.getSelectionBackground() : null); |
| } |
| } |
| else { |
| setBackground(selected ? list.getSelectionBackground() : null); |
| } |
| |
| setPaintFocusBorder(hasFocus); |
| |
| customizeCellRenderer(list, (T)value, index, selected, hasFocus); |
| |
| if (myDefaultGtkRenderer != null && list.getModel() instanceof ComboBoxModel) { |
| final Component component = myDefaultGtkRenderer.getListCellRendererComponent(list, value, index, selected, hasFocus); |
| if (component instanceof JLabel) { |
| return formatToLabel((JLabel)component); |
| } |
| } |
| return this; |
| } |
| |
| /** |
| * When the item is selected then we use default tree's selection foreground. |
| * It guaranties readability of selected text in any LAF. |
| */ |
| public final void append(@NotNull String fragment, @NotNull SimpleTextAttributes attributes, boolean isMainText) { |
| if (mySelected) { |
| super.append(fragment, new SimpleTextAttributes(attributes.getStyle(), mySelectionForeground), isMainText); |
| } |
| else if (attributes.getFgColor() == null) { |
| super.append(fragment, new SimpleTextAttributes(attributes.getStyle(), myForeground), isMainText); |
| } |
| else { |
| super.append(fragment, attributes, isMainText); |
| } |
| } |
| |
| @NotNull |
| public Dimension getPreferredSize() { |
| // There is a bug in BasicComboPopup. It does not add renderer into CellRendererPane, |
| // so font can be null here. |
| |
| Font oldFont = getFont(); |
| if (oldFont == null) { |
| setFont(UIUtil.getListFont()); |
| } |
| Dimension result = super.getPreferredSize(); |
| if (oldFont == null) { |
| setFont(null); |
| } |
| |
| return result; |
| } |
| |
| protected abstract void customizeCellRenderer(JList list, T value, int index, boolean selected, boolean hasFocus); |
| } |