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Bug 407483 - [performance] Performance improvements to decorators

Browse source 
On non-cdt projects, the decorators caused a ICProjectDescription to
be created every time a resource was decorated. The decorators should
only get the description when it already exists. Performance was also a
bit improved on cdt projects by extracting some variables out of a loop.

Change-Id: I125dc0ba55a72cfbd272fb6d6658474216021803
Reviewed-on: https://git.eclipse.org/r/12744
Reviewed-by: Andrew Gvozdev <angvoz.dev@gmail.com>
IP-Clean: Andrew Gvozdev <angvoz.dev@gmail.com>
Tested-by: Andrew Gvozdev <angvoz.dev@gmail.com>
This commit is contained in:
Marc-Andre Laperle 2013-05-12 23:33:10 -04:00
parent f70ab948fc
commit a1f59f3708
2 changed files with 14 additions and 7 deletions
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11
core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/CustomBuildSettingsDecorator.java
View file

@ -12,6 +12,7 @@ package org.eclipse.cdt.internal.ui.viewsupport;
import java.util.List;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IResource;
@ -27,6 +28,7 @@ import org.eclipse.cdt.core.model.CoreModel;
import org.eclipse.cdt.core.settings.model.ICConfigurationDescription;
import org.eclipse.cdt.core.settings.model.ICLanguageSettingEntry;
import org.eclipse.cdt.core.settings.model.ICProjectDescription;
import org.eclipse.cdt.core.settings.model.ICProjectDescriptionManager;
import org.eclipse.cdt.core.settings.model.ICResourceDescription;
import org.eclipse.cdt.internal.ui.CPluginImages;
@ -39,7 +41,8 @@ public class CustomBuildSettingsDecorator implements ILightweightLabelDecorator
public void decorate(Object element, IDecoration decoration) {
if (element instanceof IFile || element instanceof IFolder) {
IResource rc = (IResource) element;
ICProjectDescription prjDescription = CoreModel.getDefault().getProjectDescription(rc.getProject(), false);
ICProjectDescriptionManager projectDescriptionManager = CoreModel.getDefault().getProjectDescriptionManager();
ICProjectDescription prjDescription = projectDescriptionManager.getProjectDescription(rc.getProject(), ICProjectDescriptionManager.GET_IF_LOADDED);
if (prjDescription != null) {
ICConfigurationDescription cfgDescription = prjDescription.getDefaultSettingConfiguration();
if (cfgDescription != null) {
@ -57,11 +60,13 @@ public class CustomBuildSettingsDecorator implements ILightweightLabelDecorator
}
if (cfgDescription instanceof ILanguageSettingsProvidersKeeper) {
IContainer parent = rc.getParent();
List<String> languages = LanguageSettingsManager.getLanguages(rc, cfgDescription);
for (ILanguageSettingsProvider provider: ((ILanguageSettingsProvidersKeeper) cfgDescription).getLanguageSettingProviders()) {
for (String languageId : LanguageSettingsManager.getLanguages(rc, cfgDescription)) {
for (String languageId : languages) {
List<ICLanguageSettingEntry> list = provider.getSettingEntries(cfgDescription, rc, languageId);
if (list != null) {
List<ICLanguageSettingEntry> listDefault = provider.getSettingEntries(cfgDescription, rc.getParent(), languageId);
List<ICLanguageSettingEntry> listDefault = provider.getSettingEntries(cfgDescription, parent, languageId);
// != is OK here due as the equal lists will have the same reference in WeakHashSet
if (list != listDefault)
return true;

10
core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/ExcludedFileDecorator.java
View file

@ -1,5 +1,5 @@
/*******************************************************************************
* Copyright (c) 2010 Atmel Corporation and others.
* Copyright (c) 2010, 2013 Atmel Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
@ -13,6 +13,7 @@ package org.eclipse.cdt.internal.ui.viewsupport;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jface.preference.JFacePreferences;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.viewers.IDecoration;
@ -38,20 +39,21 @@ public class ExcludedFileDecorator implements ILightweightLabelDecorator {
if (element instanceof IFile || element instanceof IFolder) {
IResource resource = (IResource) element;
ICProjectDescriptionManager mngr = CoreModel.getDefault().getProjectDescriptionManager();
ICProjectDescription desc = mngr.getProjectDescription(resource.getProject(), false);
ICProjectDescription desc = mngr.getProjectDescription(resource.getProject(), ICProjectDescriptionManager.GET_IF_LOADDED);
if (desc == null)
return;
ICConfigurationDescription conf = desc.getDefaultSettingConfiguration();
ICSourceEntry[] entries = conf.getSourceEntries();
boolean isUnderSourceRoot = false;
IPath fullPath = resource.getFullPath();
for (ICSourceEntry icSourceEntry : entries) {
if (icSourceEntry.getFullPath().isPrefixOf(resource.getFullPath())) {
if (icSourceEntry.getFullPath().isPrefixOf(fullPath)) {
isUnderSourceRoot = true;
break;
}
}
// Only bother to mark items that would be included otherwise
if (isUnderSourceRoot && CDataUtil.isExcluded(resource.getFullPath(), entries)) {
if (isUnderSourceRoot && CDataUtil.isExcluded(fullPath, entries)) {
decoration.addOverlay(CPluginImages.DESC_OVR_INACTIVE);
decoration.setForegroundColor(JFaceResources.getColorRegistry().get(JFacePreferences.QUALIFIER_COLOR));
}