/*
* 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.ide.util.treeView;
import consulo.ide.IconDescriptorUpdaters;
import com.intellij.ide.projectView.impl.nodes.PsiDirectoryNode;
import com.intellij.openapi.ide.CopyPasteManager;
import com.intellij.openapi.project.IndexNotReadyException;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Comparing;
import com.intellij.openapi.util.Iconable;
import com.intellij.openapi.vcs.FileStatusManager;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.PsiElement;
import com.intellij.psi.SmartPointerManager;
import com.intellij.psi.SmartPsiElementPointer;
import com.intellij.psi.util.PsiUtilCore;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import consulo.annotations.RequiredDispatchThread;
import javax.swing.*;
import java.awt.*;
public class SmartElementDescriptor extends NodeDescriptor{
private final SmartPsiElementPointer mySmartPointer;
public SmartElementDescriptor(@NotNull Project project, NodeDescriptor parentDescriptor, @NotNull PsiElement element) {
super(project, parentDescriptor);
mySmartPointer = SmartPointerManager.getInstance(myProject).createSmartPsiElementPointer(element);
}
@Nullable
public final PsiElement getPsiElement() {
return mySmartPointer.getElement();
}
@Override
public Object getElement() {
return getPsiElement();
}
protected boolean isMarkReadOnly() {
return getParentDescriptor() instanceof PsiDirectoryNode;
}
protected boolean isMarkModified() {
return getParentDescriptor() instanceof PsiDirectoryNode;
}
// Should be called in atomic action
@RequiredDispatchThread
@Override
public boolean update() {
PsiElement element = mySmartPointer.getElement();
if (element == null) return true;
int flags = Iconable.ICON_FLAG_VISIBILITY;
if (isMarkReadOnly()){
flags |= Iconable.ICON_FLAG_READ_STATUS;
}
Icon icon = null;
try {
icon = IconDescriptorUpdaters.getIcon(element, flags);
}
catch (IndexNotReadyException ignored) {
}
Color color = null;
if (isMarkModified() ){
VirtualFile virtualFile = PsiUtilCore.getVirtualFile(element);
if (virtualFile != null) {
color = FileStatusManager.getInstance(myProject).getStatus(virtualFile).getColor();
}
}
if (CopyPasteManager.getInstance().isCutElement(element)) {
color = CopyPasteManager.CUT_COLOR;
}
boolean changes = !Comparing.equal(icon, getIcon()) || !Comparing.equal(color, myColor);
setIcon(icon);
myColor = color;
return changes;
}
}