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/*
* Copyright (C) 2012 The Android Open Source Project
*
* 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.android.ide.eclipse.gltrace.views.detail;
import com.android.ide.eclipse.gltrace.state.GLCompositeProperty;
import com.android.ide.eclipse.gltrace.state.GLStateType;
import com.android.ide.eclipse.gltrace.state.GLStringProperty;
import com.android.ide.eclipse.gltrace.state.IGLProperty;
import org.eclipse.jface.action.IContributionItem;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Text;
import java.util.Collections;
import java.util.List;
public class ShaderSourceDetailsProvider implements IStateDetailProvider {
private Text mTextControl;
@Override
public boolean isApplicable(IGLProperty state) {
return getShaderSourceProperty(state) != null;
}
@Override
public void createControl(Composite parent) {
mTextControl = new Text(parent, SWT.BORDER| SWT.READ_ONLY
| SWT.MULTI | SWT.WRAP | SWT.V_SCROLL | SWT.H_SCROLL);
mTextControl.setEditable(false);
}
@Override
public void disposeControl() {
}
@Override
public Control getControl() {
return mTextControl;
}
@Override
public void updateControl(IGLProperty state) {
IGLProperty shaderSrcProperty = getShaderSourceProperty(state);
if (shaderSrcProperty instanceof GLStringProperty) {
String shaderSrc = ((GLStringProperty) shaderSrcProperty).getStringValue();
mTextControl.setText(shaderSrc);
mTextControl.setEnabled(true);
} else {
mTextControl.setText(""); //$NON-NLS-1$
mTextControl.setEnabled(false);
}
}
/**
* Get the {@link GLStateType#SHADER_SOURCE} property given a node in
* the state hierarchy.
* @param state any node in the GL state hierarchy
* @return The {@link GLStateType#SHADER_SOURCE} property if a unique instance
* of it can be accessed from the given node, null otherwise.
* A unique instance can be accessed if the given node is
* either the requested node itself, or its parent or sibling.
*/
private IGLProperty getShaderSourceProperty(IGLProperty state) {
if (state.getType() == GLStateType.SHADER_SOURCE) {
// given node is the requested node
return state;
}
if (state.getType() != GLStateType.PER_SHADER_STATE) {
// if it is not the parent, then it could be a sibling, in which case
// we go up a level to its parent
state = state.getParent();
}
if (state != null && state.getType() == GLStateType.PER_SHADER_STATE) {
// if it is the parent, we can access the required property
return ((GLCompositeProperty) state).getProperty(GLStateType.SHADER_SOURCE);
}
return null;
}
@Override
public List<IContributionItem> getToolBarItems() {
return Collections.emptyList();
}
}
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