1 /*
2 * Copyright (c) 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 "core/components_ng/pattern/grid/grid_utils.h"
17
18 namespace OHOS::Ace::NG {
19 namespace {
20
21 const std::string UNIT_AUTO = "auto";
22
23 } // namespace
24
ParseArgs(const std::string & args)25 std::string GridUtils::ParseArgs(const std::string& args)
26 {
27 if (args.empty() || args.find(UNIT_AUTO) == std::string::npos) {
28 return args;
29 }
30 std::string rowsArgs;
31 std::vector<std::string> strs;
32 StringUtils::StringSplitter(args, ' ', strs);
33 std::string current;
34 size_t rowArgSize = strs.size();
35 for (size_t i = 0; i < rowArgSize; ++i) {
36 current = strs[i];
37 // "auto" means 1fr in grid
38 if (strs[i] == std::string(UNIT_AUTO)) {
39 current = "1fr";
40 }
41 rowsArgs += " " + current;
42 }
43 return rowsArgs;
44 }
45
46 namespace {
GetRowGap(const RefPtr<GridLayoutProperty> & props,float frameHeight)47 inline float GetRowGap(const RefPtr<GridLayoutProperty>& props, float frameHeight)
48 {
49 auto scale = props->GetLayoutConstraint()->scaleProperty;
50 return ConvertToPx(props->GetRowsGap().value_or(0.0_vp), scale, frameHeight).value_or(0);
51 }
52
GetColumnGap(const RefPtr<GridLayoutProperty> & props,float frameWidth)53 inline float GetColumnGap(const RefPtr<GridLayoutProperty>& props, float frameWidth)
54 {
55 auto scale = props->GetLayoutConstraint()->scaleProperty;
56 return ConvertToPx(props->GetColumnsGap().value_or(0.0_vp), scale, frameWidth).value_or(0);
57 }
58 } // namespace
59
GetMainGap(const RefPtr<GridLayoutProperty> & props,const SizeF & frameSize,Axis axis)60 float GridUtils::GetMainGap(const RefPtr<GridLayoutProperty>& props, const SizeF& frameSize, Axis axis)
61 {
62 return axis == Axis::HORIZONTAL ? GetColumnGap(props, frameSize.Width()) : GetRowGap(props, frameSize.Height());
63 }
64
GetCrossGap(const RefPtr<GridLayoutProperty> & props,const SizeF & frameSize,Axis axis)65 float GridUtils::GetCrossGap(const RefPtr<GridLayoutProperty>& props, const SizeF& frameSize, Axis axis)
66 {
67 return axis == Axis::HORIZONTAL ? GetRowGap(props, frameSize.Height()) : GetColumnGap(props, frameSize.Width());
68 }
69
CheckNeedCacheLayout(const RefPtr<LayoutWrapper> & layoutWrapper)70 bool GridUtils::CheckNeedCacheLayout(const RefPtr<LayoutWrapper>& layoutWrapper)
71 {
72 return !layoutWrapper || (layoutWrapper->CheckNeedForceMeasureAndLayout() && !layoutWrapper->CheckHasPreMeasured());
73 }
74
75 } // namespace OHOS::Ace::NG