| /* |
| * Copyright (C) 2007 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.values.uimodel; |
| |
| import com.android.ide.eclipse.adt.internal.editors.descriptors.TextValueDescriptor; |
| 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.UiTextValueNode; |
| |
| import org.eclipse.jface.dialogs.IMessageProvider; |
| import org.eclipse.swt.events.DisposeEvent; |
| import org.eclipse.swt.events.DisposeListener; |
| import org.eclipse.swt.events.ModifyEvent; |
| import org.eclipse.swt.events.ModifyListener; |
| import org.eclipse.swt.widgets.Text; |
| |
| import java.util.regex.Pattern; |
| |
| /** |
| * Displays and edits a color XML element value with a custom validator. |
| * <p/> |
| * See {@link UiAttributeNode} for more information. |
| */ |
| public class UiColorValueNode extends UiTextValueNode { |
| |
| /** Accepted RGBA formats are one of #RGB, #ARGB, #RRGGBB or #AARRGGBB. */ |
| private static final Pattern RGBA_REGEXP = Pattern.compile( |
| "#(?:[0-9a-fA-F]{3,4}|[0-9a-fA-F]{6}|[0-9a-fA-F]{8})"); //$NON-NLS-1$ |
| |
| public UiColorValueNode(TextValueDescriptor attributeDescriptor, UiElementNode uiParent) { |
| super(attributeDescriptor, uiParent); |
| } |
| |
| /* (non-java doc) |
| * |
| * Add a modify listener that will check colors have the proper format, |
| * that is one of #RGB, #ARGB, #RRGGBB or #AARRGGBB. |
| */ |
| @Override |
| protected void onAddValidators(final Text text) { |
| ModifyListener listener = new ModifyListener() { |
| @Override |
| public void modifyText(ModifyEvent e) { |
| String color = text.getText(); |
| if (RGBA_REGEXP.matcher(color).matches()) { |
| getManagedForm().getMessageManager().removeMessage(text, text); |
| } else { |
| getManagedForm().getMessageManager().addMessage(text, |
| "Accepted color formats are one of #RGB, #ARGB, #RRGGBB or #AARRGGBB.", |
| null /* data */, IMessageProvider.ERROR, text); |
| } |
| } |
| }; |
| |
| text.addModifyListener(listener); |
| |
| // Make sure the validator removes its message(s) when the widget is disposed |
| text.addDisposeListener(new DisposeListener() { |
| @Override |
| public void widgetDisposed(DisposeEvent e) { |
| getManagedForm().getMessageManager().removeMessage(text, text); |
| } |
| }); |
| |
| // Finally call the validator once to make sure the initial value is processed |
| listener.modifyText(null); |
| } |
| } |