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      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.sdkuilib.internal.widgets;
     18 
     19 
     20 import org.eclipse.swt.SWT;
     21 import org.eclipse.swt.graphics.Image;
     22 import org.eclipse.swt.widgets.Composite;
     23 
     24 /**
     25  * A label that can display 2 images depending on its enabled/disabled state.
     26  * This acts as a button by firing the {@link SWT#Selection} listener.
     27  */
     28 public class ImgDisabledButton extends ToggleButton {
     29     public ImgDisabledButton(
     30             Composite parent,
     31             int style,
     32             Image imageEnabled,
     33             Image imageDisabled,
     34             String tooltipEnabled,
     35             String tooltipDisabled) {
     36         super(parent,
     37                 style,
     38                 imageEnabled,
     39                 imageDisabled,
     40                 tooltipEnabled,
     41                 tooltipDisabled);
     42     }
     43 
     44     @Override
     45     public void setEnabled(boolean enabled) {
     46         super.setEnabled(enabled);
     47         updateImageAndTooltip();
     48         redraw();
     49     }
     50 
     51     @Override
     52     public void setState(int state) {
     53         throw new UnsupportedOperationException(); // not available for this type of button
     54     }
     55 
     56     @Override
     57     public int getState() {
     58         return (isDisposed() || !isEnabled()) ? 1 : 0;
     59     }
     60 }
     61