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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php
*
* 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.adt.internal.editors.descriptors;
import com.android.ide.common.api.IAttributeInfo;
import com.android.ide.eclipse.adt.internal.editors.ui.FlagValueCellEditor;
import com.android.ide.eclipse.adt.internal.editors.uimodel.UiAttributeNode;
import com.android.ide.eclipse.adt.internal.editors.uimodel.UiElementNode;
import com.android.ide.eclipse.adt.internal.editors.uimodel.UiFlagAttributeNode;
import com.android.ide.eclipse.adt.internal.editors.uimodel.UiListAttributeNode;
import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.swt.widgets.Composite;
/**
* Describes a text attribute that can only contains some predefined values.
* It is displayed by a {@link UiListAttributeNode}.
*
* Note: in Android resources, a "flag" is a list of fixed values where one or
* more values can be selected using an "or", e.g. "align='left|top'".
* By contrast, an "enum" is a list of fixed values of which only one can be
* selected at a given time, e.g. "gravity='right'".
* <p/>
* This class handles the "flag" case.
* The "enum" case is done using {@link ListAttributeDescriptor}.
*/
public class FlagAttributeDescriptor extends TextAttributeDescriptor {
private String[] mNames;
/**
* Creates a new {@link FlagAttributeDescriptor}.
* <p/>
* If <code>attrInfo</code> is not null and has non-null flag values, these will be
* used for the list.
* Otherwise values are automatically extracted from the FrameworkResourceManager.
*/
public FlagAttributeDescriptor(String xmlLocalName, String nsUri, IAttributeInfo attrInfo) {
super(xmlLocalName, nsUri, attrInfo);
if (attrInfo != null) {
mNames = attrInfo.getFlagValues();
}
}
/**
* Creates a new {@link FlagAttributeDescriptor} which uses the provided values
* and does not lookup the content of <code>attrInfo</code>.
*/
public FlagAttributeDescriptor(String xmlLocalName, String uiName, String nsUri,
String tooltip, IAttributeInfo attrInfo, String[] names) {
super(xmlLocalName, nsUri, attrInfo);
mNames = names;
}
/**
* @return The initial names of the flags. Can be null, in which case the Framework
* resource parser should be checked.
*/
public String[] getNames() {
return mNames;
}
/**
* @return A new {@link UiListAttributeNode} linked to this descriptor.
*/
@Override
public UiAttributeNode createUiNode(UiElementNode uiParent) {
return new UiFlagAttributeNode(this, uiParent);
}
// ------- IPropertyDescriptor Methods
@Override
public CellEditor createPropertyEditor(Composite parent) {
return new FlagValueCellEditor(parent);
}
}
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