/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #ifndef NSDISPLAYLISTINVALIDATION_H_ #define NSDISPLAYLISTINVALIDATION_H_ #include "mozilla/Attributes.h" #include "mozilla/layers/WebRenderUserData.h" #include "ImgDrawResult.h" #include "nsRect.h" #include "nsColor.h" #include "gfxRect.h" #include "mozilla/gfx/MatrixFwd.h" namespace mozilla { class nsDisplayBackgroundImage; class nsCharClipDisplayItem; class nsDisplayItem; class nsDisplayListBuilder; class nsDisplayTableItem; class nsDisplayThemedBackground; class nsDisplayEffectsBase; class nsDisplayMasksAndClipPaths; class nsDisplayFilters; namespace gfx { struct sRGBColor; } /** * This stores the geometry of an nsDisplayItem, and the area * that will be affected when painting the item. * * It is used to retain information about display items so they * can be compared against new display items in the next paint. */ class nsDisplayItemGeometry { public: nsDisplayItemGeometry(nsDisplayItem* aItem, nsDisplayListBuilder* aBuilder); virtual ~nsDisplayItemGeometry(); /** * Compute the area required to be invalidated if this * display item is removed. */ const nsRect& ComputeInvalidationRegion() { return mBounds; } /** * Shifts all retained areas of the nsDisplayItemGeometry by the given offset. * * This is used to compensate for scrolling, since the destination buffer * can scroll without requiring a full repaint. * * @param aOffset Offset to shift by. */ virtual void MoveBy(const nsPoint& aOffset) { mBounds.MoveBy(aOffset); } /** * Bounds of the display item */ nsRect mBounds; }; /** * A default geometry implementation, used by nsDisplayItem. Retains * and compares the bounds, and border rect. * * This should be sufficient for the majority of display items. */ class nsDisplayItemGenericGeometry : public nsDisplayItemGeometry { public: nsDisplayItemGenericGeometry(nsDisplayItem* aItem, nsDisplayListBuilder* aBuilder); void MoveBy(const nsPoint& aOffset) override; nsRect mBorderRect; }; bool ShouldSyncDecodeImages(nsDisplayListBuilder* aBuilder); nsDisplayItemGeometry* GetPreviousGeometry(nsDisplayItem*); class nsDisplayItemBoundsGeometry : public nsDisplayItemGeometry { public: nsDisplayItemBoundsGeometry(nsDisplayItem* aItem, nsDisplayListBuilder* aBuilder); bool mHasRoundedCorners; }; class nsDisplayBorderGeometry : public nsDisplayItemGeometry { public: nsDisplayBorderGeometry(nsDisplayItem* aItem, nsDisplayListBuilder* aBuilder); }; class nsDisplayBackgroundGeometry : public nsDisplayItemGeometry { public: nsDisplayBackgroundGeometry(nsDisplayBackgroundImage* aItem, nsDisplayListBuilder* aBuilder); void MoveBy(const nsPoint& aOffset) override; nsRect mPositioningArea; nsRect mDestRect; }; class nsDisplayThemedBackgroundGeometry : public nsDisplayItemGeometry { public: nsDisplayThemedBackgroundGeometry(nsDisplayThemedBackground* aItem, nsDisplayListBuilder* aBuilder); void MoveBy(const nsPoint& aOffset) override; nsRect mPositioningArea; bool mWindowIsActive; }; class nsDisplayTreeBodyGeometry : public nsDisplayItemGenericGeometry { public: nsDisplayTreeBodyGeometry(nsDisplayItem* aItem, nsDisplayListBuilder* aBuilder, bool aWindowIsActive) : nsDisplayItemGenericGeometry(aItem, aBuilder), mWindowIsActive(aWindowIsActive) {} bool mWindowIsActive = false; }; class nsDisplayBoxShadowInnerGeometry : public nsDisplayItemGeometry { public: nsDisplayBoxShadowInnerGeometry(nsDisplayItem* aItem, nsDisplayListBuilder* aBuilder); void MoveBy(const nsPoint& aOffset) override; nsRect mPaddingRect; }; class nsDisplaySolidColorGeometry : public nsDisplayItemBoundsGeometry { public: nsDisplaySolidColorGeometry(nsDisplayItem* aItem, nsDisplayListBuilder* aBuilder, nscolor aColor) : nsDisplayItemBoundsGeometry(aItem, aBuilder), mColor(aColor) {} nscolor mColor; }; class nsDisplaySolidColorRegionGeometry : public nsDisplayItemBoundsGeometry { public: nsDisplaySolidColorRegionGeometry(nsDisplayItem* aItem, nsDisplayListBuilder* aBuilder, const nsRegion& aRegion, mozilla::gfx::sRGBColor aColor) : nsDisplayItemBoundsGeometry(aItem, aBuilder), mRegion(aRegion), mColor(aColor) {} void MoveBy(const nsPoint& aOffset) override; nsRegion mRegion; mozilla::gfx::sRGBColor mColor; }; class nsDisplaySVGEffectGeometry : public nsDisplayItemGeometry { public: nsDisplaySVGEffectGeometry(nsDisplayEffectsBase* aItem, nsDisplayListBuilder* aBuilder); void MoveBy(const nsPoint& aOffset) override; gfxRect mBBox; gfxPoint mUserSpaceOffset; nsPoint mFrameOffsetToReferenceFrame; bool mHandleOpacity; }; class nsDisplayMasksAndClipPathsGeometry : public nsDisplaySVGEffectGeometry { public: nsDisplayMasksAndClipPathsGeometry(nsDisplayMasksAndClipPaths* aItem, nsDisplayListBuilder* aBuilder); nsTArray<nsRect> mDestRects; }; class nsDisplayFiltersGeometry : public nsDisplaySVGEffectGeometry { public: nsDisplayFiltersGeometry(nsDisplayFilters* aItem, nsDisplayListBuilder* aBuilder); }; class nsDisplayTableItemGeometry : public nsDisplayItemGenericGeometry { public: nsDisplayTableItemGeometry(nsDisplayTableItem* aItem, nsDisplayListBuilder* aBuilder, const nsPoint& aFrameOffsetToViewport); nsPoint mFrameOffsetToViewport; }; class nsDisplayOpacityGeometry : public nsDisplayItemGenericGeometry { public: nsDisplayOpacityGeometry(nsDisplayItem* aItem, nsDisplayListBuilder* aBuilder, float aOpacity) : nsDisplayItemGenericGeometry(aItem, aBuilder), mOpacity(aOpacity) {} float mOpacity; }; class nsDisplayTransformGeometry : public nsDisplayItemGeometry { public: nsDisplayTransformGeometry(nsDisplayItem* aItem, nsDisplayListBuilder* aBuilder, const mozilla::gfx::Matrix4x4Flagged& aTransform, int32_t aAppUnitsPerDevPixel) : nsDisplayItemGeometry(aItem, aBuilder), mTransform(aTransform), mAppUnitsPerDevPixel(aAppUnitsPerDevPixel) {} void MoveBy(const nsPoint& aOffset) override { nsDisplayItemGeometry::MoveBy(aOffset); mTransform.PostTranslate( NSAppUnitsToFloatPixels(aOffset.x, mAppUnitsPerDevPixel), NSAppUnitsToFloatPixels(aOffset.y, mAppUnitsPerDevPixel), 0.0f); } mozilla::gfx::Matrix4x4Flagged mTransform; int32_t mAppUnitsPerDevPixel; }; } // namespace mozilla #endif /*NSDISPLAYLISTINVALIDATION_H_*/