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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /gfx/thebes/gfxQuartzNativeDrawing.h | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/thebes/gfxQuartzNativeDrawing.h')
-rw-r--r-- | gfx/thebes/gfxQuartzNativeDrawing.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/gfx/thebes/gfxQuartzNativeDrawing.h b/gfx/thebes/gfxQuartzNativeDrawing.h new file mode 100644 index 0000000000..9e8b0bede6 --- /dev/null +++ b/gfx/thebes/gfxQuartzNativeDrawing.h @@ -0,0 +1,71 @@ +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- + * 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 _GFXQUARTZNATIVEDRAWING_H_ +#define _GFXQUARTZNATIVEDRAWING_H_ + +#include "mozilla/Attributes.h" + +#include "mozilla/gfx/2D.h" +#include "mozilla/gfx/BorrowedContext.h" +#include "mozilla/RefPtr.h" + +class gfxQuartzNativeDrawing { + typedef mozilla::gfx::DrawTarget DrawTarget; + typedef mozilla::gfx::Rect Rect; + + public: + /* Create native Quartz drawing for a rectangle bounded by + * nativeRect. + * + * Typical usage looks like: + * + * gfxQuartzNativeDrawing nativeDraw(ctx, nativeRect); + * CGContextRef cgContext = nativeDraw.BeginNativeDrawing(); + * if (!cgContext) + * return NS_ERROR_FAILURE; + * + * ... call Quartz operations on CGContextRef to draw to nativeRect ... + * + * nativeDraw.EndNativeDrawing(); + * + * aNativeRect is the size of the surface (in Quartz/Cocoa points) that + * will be created _if_ the gfxQuartzNativeDrawing decides to create a new + * surface and CGContext for its drawing operations, which it then + * composites into the target DrawTarget. + * + * (Note that aNativeRect will be ignored if the gfxQuartzNativeDrawing + * uses the target DrawTarget directly.) + * + * The optional aBackingScale parameter is a scaling factor that will be + * applied when creating and rendering into such a temporary surface. + */ + gfxQuartzNativeDrawing(DrawTarget& aDrawTarget, const Rect& aNativeRect); + + /* Returns a CGContextRef which may be used for native drawing. This + * CGContextRef is valid until EndNativeDrawing is called; if it is used + * for drawing after that time, the result is undefined. */ + CGContextRef BeginNativeDrawing(); + + /* Marks the end of native drawing */ + void EndNativeDrawing(); + + private: + // don't allow copying via construction or assignment + gfxQuartzNativeDrawing(const gfxQuartzNativeDrawing&) = delete; + const gfxQuartzNativeDrawing& operator=(const gfxQuartzNativeDrawing&) = + delete; + + // Final destination context + RefPtr<DrawTarget> mDrawTarget; + RefPtr<DrawTarget> mTempDrawTarget; + mozilla::gfx::BorrowedCGContext mBorrowedContext; + mozilla::gfx::Rect mNativeRect; + + // saved state + CGContextRef mCGContext; +}; + +#endif |