1 /*
2 * Copyright (c) 2022-2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "color_parser.h"
17 #include <cstdlib>
18
19 #include "window_manager_hilog.h"
20
21 namespace OHOS {
22 namespace Rosen {
23 namespace {
24 constexpr HiviewDFX::HiLogLabel LABEL = {LOG_CORE, HILOG_DOMAIN_WINDOW, "ColorParser"};
25 }
26
Parse(const std::string & colorStr,uint32_t & colorValue)27 bool ColorParser::Parse(const std::string& colorStr, uint32_t& colorValue)
28 {
29 if (colorStr.empty()) {
30 WLOGFE("color string is empty");
31 return false;
32 }
33
34 if (colorStr[0] == '#') { // start with '#'
35 std::string color = colorStr.substr(1);
36 if (!IsValidHexString(color)) {
37 return false;
38 }
39 char* ptr;
40 colorValue = std::strtoul(color.c_str(), &ptr, 16); // convert hex string to number
41 if (colorStr.size() == 7) { // #RRGGBB: RRGGBB -> AARRGGBB
42 colorValue |= 0xff000000;
43 return true;
44 } else if (colorStr.size() == 9) { // #AARRGGBB
45 return true;
46 } else {
47 // do nothing
48 }
49 }
50 return false;
51 }
52
IsValidHexString(const std::string & colorStr)53 bool ColorParser::IsValidHexString(const std::string& colorStr)
54 {
55 if (colorStr.empty()) {
56 return false;
57 }
58 for (char ch : colorStr) {
59 if ((ch >= '0' && ch <= '9') || (ch >= 'a' && ch <= 'f') || (ch >= 'A' && ch <= 'F')) {
60 continue;
61 }
62 return false;
63 }
64 return true;
65 }
66 } // namespace Rosen
67 } // namespace OHOS