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90 lines
3.3 KiB
C++
90 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Thebes gfx.
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*
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* The Initial Developer of the Original Code is Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2008
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Matthew Gregan <kinetik@flim.org>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef _GFXQUARTZNATIVEDRAWING_H_
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#define _GFXQUARTZNATIVEDRAWING_H_
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#include "gfxContext.h"
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#include "gfxQuartzSurface.h"
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class THEBES_API gfxQuartzNativeDrawing {
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public:
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/* Create native Quartz drawing for a rectangle bounded by
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* nativeRect.
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*
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* Typical usage looks like:
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*
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* gfxQuartzNativeDrawing nativeDraw(ctx, nativeRect);
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* CGContextRef cgContext = nativeDraw.BeginNativeDrawing();
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* if (!cgContext)
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* return NS_ERROR_FAILURE;
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*
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* ... call Quartz operations on CGContextRef to draw to nativeRect ...
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*
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* nativeDraw.EndNativeDrawing();
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*/
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gfxQuartzNativeDrawing(gfxContext *ctx,
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const gfxRect& nativeRect);
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/* Returns a CGContextRef which may be used for native drawing. This
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* CGContextRef is valid until EndNativeDrawing is called; if it is used
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* for drawing after that time, the result is undefined. */
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CGContextRef BeginNativeDrawing();
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/* Marks the end of native drawing */
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void EndNativeDrawing();
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private:
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// don't allow copying via construction or assignment
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gfxQuartzNativeDrawing(const gfxQuartzNativeDrawing&);
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const gfxQuartzNativeDrawing& operator=(const gfxQuartzNativeDrawing&);
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// Final destination context
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nsRefPtr<gfxContext> mContext;
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// context that draws to mQuartzSurface; can be different from mContext
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// if mContext is not drawing to Quartz
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nsRefPtr<gfxContext> mSurfaceContext;
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gfxRect mNativeRect;
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// saved state
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nsRefPtr<gfxQuartzSurface> mQuartzSurface;
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CGContextRef mCGContext;
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};
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#endif
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