1 /*
2  * Copyright 2013 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 #ifndef ANDROID_SURFACE_FLINGER_COLORIZER_H
18 #define ANDROID_SURFACE_FLINGER_COLORIZER_H
19 
20 #include <android-base/stringprintf.h>
21 
22 namespace android {
23 
24 // ---------------------------------------------------------------------------
25 
26 class Colorizer {
27     bool mEnabled;
28 public:
29     enum color {
30         RED     = 31,
31         GREEN   = 32,
32         YELLOW  = 33,
33         BLUE    = 34,
34         MAGENTA = 35,
35         CYAN    = 36,
36         WHITE   = 37
37     };
38 
Colorizer(bool enabled)39     explicit Colorizer(bool enabled)
40         : mEnabled(enabled) {
41     }
42 
colorize(std::string & out,color c)43     void colorize(std::string& out, color c) {
44         if (mEnabled) {
45             base::StringAppendF(&out, "\e[%dm", c);
46         }
47     }
48 
bold(std::string & out)49     void bold(std::string& out) {
50         if (mEnabled) {
51             out.append("\e[1m");
52         }
53     }
54 
reset(std::string & out)55     void reset(std::string& out) {
56         if (mEnabled) {
57             out.append("\e[0m");
58         }
59     }
60 };
61 
62 // ---------------------------------------------------------------------------
63 
64 }; // namespace android
65 
66 
67 #endif /* ANDROID_SURFACE_FLINGER_COLORIZER_H */
68