1 /*
2  * Copyright (C) 2016 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.layoutlib.bridge;import com.android.ide.common.rendering.api.RenderSession;
18 import com.android.ide.common.rendering.api.Result;
19 import com.android.ide.common.rendering.api.Result.Status;
20 import com.android.ide.common.rendering.api.SessionParams;
21 
22 import java.awt.Graphics2D;
23 import java.awt.image.BufferedImage;
24 
25 /**
26  * Legacy Bridge used in the SDK version of layoutlib
27  */
28 public final class Bridge extends com.android.ide.common.rendering.api.Bridge {
29     private static final String SDK_NOT_SUPPORTED = "The SDK layoutlib version is not supported";
30     private static final Result NOT_SUPPORTED_RESULT =
31             Status.NOT_IMPLEMENTED.createResult(SDK_NOT_SUPPORTED);
32     private static BufferedImage sImage;
33 
34     private static class BridgeRenderSession extends RenderSession {
35 
36         @Override
getImage()37         public synchronized BufferedImage getImage() {
38             if (sImage == null) {
39                 sImage = new BufferedImage(500, 500, BufferedImage.TYPE_INT_ARGB);
40                 Graphics2D g = sImage.createGraphics();
41                 g.clearRect(0, 0, 500, 500);
42                 g.drawString(SDK_NOT_SUPPORTED, 20, 20);
43                 g.dispose();
44             }
45 
46             return sImage;
47         }
48 
49         @Override
render(long timeout, boolean forceMeasure)50         public Result render(long timeout, boolean forceMeasure) {
51             return NOT_SUPPORTED_RESULT;
52         }
53 
54         @Override
measure(long timeout)55         public Result measure(long timeout) {
56             return NOT_SUPPORTED_RESULT;
57         }
58 
59         @Override
getResult()60         public Result getResult() {
61             return NOT_SUPPORTED_RESULT;
62         }
63     }
64 
65 
66     @Override
createSession(SessionParams params)67     public RenderSession createSession(SessionParams params) {
68         return new BridgeRenderSession();
69     }
70 
71     @Override
getApiLevel()72     public int getApiLevel() {
73         return 0;
74     }
75 }
76