mirror of
https://github.com/openharmony/graphic_ui.git
synced 2026-06-30 23:17:56 -04:00
mamingshuai
41 lines
1.5 KiB
C++
Executable File
41 lines
1.5 KiB
C++
Executable File
/*
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "draw/draw_curve.h"
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#include "animator/interpolation.h"
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#include "draw/draw_line.h"
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namespace OHOS {
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void DrawCurve::DrawCubicBezier(const Point& start, const Point& control1, const Point& control2, const Point& end,
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const Rect& mask, int16_t width, const ColorType& color, OpacityType opacity)
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{
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if ((width == 0) || (opacity == OPA_TRANSPARENT)) {
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return;
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}
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Point prePoint = start;
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for (int16_t t = 1; t <= INTERPOLATION_RANGE; t++) {
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Point point;
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point.x = Interpolation::GetBezierInterpolation(t, start.x, control1.x, control2.x, end.x);
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point.y = Interpolation::GetBezierInterpolation(t, start.y, control1.y, control2.y, end.y);
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if ((prePoint.x == point.x) && (prePoint.y == point.y)) {
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continue;
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}
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DrawLine::Draw(prePoint, point, mask, width, color, opacity);
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prePoint = point;
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}
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}
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}
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