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 #ifndef FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_SCROLL_SCROLL_PAINT_METHOD_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_SCROLL_SCROLL_PAINT_METHOD_H 18 19 #include "core/components_ng/pattern/scroll/inner/scroll_bar.h" 20 #include "core/components_ng/pattern/scroll/scroll_edge_effect.h" 21 #include "core/components_ng/render/node_paint_method.h" 22 23 namespace OHOS::Ace::NG { 24 25 class ScrollPaintMethod : public NodePaintMethod { 26 DECLARE_ACE_TYPE(ScrollPaintMethod, NodePaintMethod) 27 28 public: 29 ScrollPaintMethod() = default; 30 ~ScrollPaintMethod() override = default; 31 32 CanvasDrawFunction GetForegroundDrawFunction(PaintWrapper* paintWrapper) override; 33 SetScrollBar(WeakPtr<ScrollBar> && scrollBar)34 void SetScrollBar(WeakPtr<ScrollBar>&& scrollBar) 35 { 36 scrollBar_ = scrollBar; 37 } 38 SetEdgeEffect(WeakPtr<ScrollEdgeEffect> && edgeEffect)39 void SetEdgeEffect(WeakPtr<ScrollEdgeEffect>&& edgeEffect) 40 { 41 edgeEffect_ = edgeEffect; 42 } 43 SetScrollBarOverlayModifier(WeakPtr<ScrollBarOverlayModifier> && scrollBarOverlayModifier)44 void SetScrollBarOverlayModifier(WeakPtr<ScrollBarOverlayModifier>&& scrollBarOverlayModifier) 45 { 46 scrollBarOverlayModifier_ = scrollBarOverlayModifier; 47 } 48 GetOverlayModifier(PaintWrapper * paintWrapper)49 RefPtr<Modifier> GetOverlayModifier(PaintWrapper* paintWrapper) override 50 { 51 return scrollBarOverlayModifier_.Upgrade(); 52 } 53 54 void UpdateOverlayModifier(PaintWrapper* paintWrapper) override; 55 56 private: 57 void PaintScrollEffect(RSCanvas& canvas, PaintWrapper* paintWrapper) const; 58 59 WeakPtr<ScrollBar> scrollBar_; 60 WeakPtr<ScrollEdgeEffect> edgeEffect_; 61 WeakPtr<ScrollBarOverlayModifier> scrollBarOverlayModifier_; 62 }; 63 } // namespace OHOS::Ace::NG 64 65 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_SCROLL_SCROLL_PAINT_METHOD_H 66