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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.jetbrains.python.hierarchy;
import com.intellij.ide.IdeBundle;
import com.intellij.ide.hierarchy.HierarchyNodeDescriptor;
import com.intellij.ide.util.treeView.NodeDescriptor;
import com.intellij.navigation.ItemPresentation;
import com.intellij.openapi.roots.ui.util.CompositeAppearance;
import com.intellij.openapi.util.Comparing;
import com.intellij.psi.NavigatablePsiElement;
import com.intellij.psi.PsiElement;
import com.jetbrains.python.psi.PyClass;
import com.jetbrains.python.psi.PyFunction;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
/**
* Created by IntelliJ IDEA.
* User: Alexey.Ivanov
* Date: Jul 31, 2009
* Time: 6:26:37 PM
*/
public class PyHierarchyNodeDescriptor extends HierarchyNodeDescriptor {
public PyHierarchyNodeDescriptor(final NodeDescriptor parentDescriptor, @NotNull final PsiElement element, final boolean isBase) {
super(element.getProject(), parentDescriptor, element, isBase);
}
@Nullable
public PsiElement getPsiElement() {
return myElement;
}
public boolean isValid() {
return myElement != null && myElement.isValid();
}
@Override
public boolean update() {
boolean changes = super.update();
final CompositeAppearance oldText = myHighlightedText;
myHighlightedText = new CompositeAppearance();
NavigatablePsiElement element = (NavigatablePsiElement)myElement;
if (element == null) {
final String invalidPrefix = IdeBundle.message("node.hierarchy.invalid");
if (!myHighlightedText.getText().startsWith(invalidPrefix)) {
myHighlightedText.getBeginning().addText(invalidPrefix, HierarchyNodeDescriptor.getInvalidPrefixAttributes());
}
return true;
}
final ItemPresentation presentation = element.getPresentation();
if (presentation != null) {
if (element instanceof PyFunction) {
final PyClass cls = ((PyFunction)element).getContainingClass();
if (cls != null) {
myHighlightedText.getEnding().addText(cls.getName() + ".");
}
}
myHighlightedText.getEnding().addText(presentation.getPresentableText());
myHighlightedText.getEnding().addText(" " + presentation.getLocationString(), HierarchyNodeDescriptor.getPackageNameAttributes());
}
myName = myHighlightedText.getText();
if (!Comparing.equal(myHighlightedText, oldText)) {
changes = true;
}
return changes;
}
}
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