webcoregraphicscontext.cpp

来自「手机浏览器源码程序,功能强大」· C++ 代码 · 共 75 行

/*
 * Copyright (c) 2005 Nokia Corporation, Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the Nokia Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "WebCoreGraphicsContext.h"

EXPORT_C CWebCoreGraphicsContext* CWebCoreGraphicsContext::NewL(CFbsBitmapDevice *aBitmapDevice, CFbsBitmap* aBitmap, MWebCoreScrollView* aView)
    {
    CWebCoreGraphicsContext *self = new (ELeave) CWebCoreGraphicsContext(aBitmap, aView);
    CleanupStack::PushL(self);
    self->ConstructL(aBitmapDevice);
    CleanupStack::Pop();
    return self;
    }

EXPORT_C CWebCoreGraphicsContext* CWebCoreGraphicsContext::NewL(CFbsBitGc& aGc, CFbsBitmap* aBitmap, MWebCoreScrollView* aView)
    {
    CWebCoreGraphicsContext *self = new (ELeave) CWebCoreGraphicsContext(aBitmap, aView);
    CleanupStack::PushL(self);
    self->ConstructL(aGc);
    CleanupStack::Pop();
    return self;
    }


void CWebCoreGraphicsContext::ConstructL(CFbsBitmapDevice *aBitmapDevice)
    {
	User::LeaveIfError(aBitmapDevice->CreateContext(iBitmapContext));
    iGcOwned = ETrue;
    }

void CWebCoreGraphicsContext::ConstructL(CFbsBitGc& aGc)
    {
    iBitmapContext = &aGc;
    iGcOwned = EFalse;
    }

CWebCoreGraphicsContext::CWebCoreGraphicsContext(CFbsBitmap* aBitmap, MWebCoreScrollView* aView)
    {
    iScrollView = aView;
	iOffscreenBitmap = aBitmap;
    }

CWebCoreGraphicsContext::~CWebCoreGraphicsContext()
    {
    if (iGcOwned)
    	delete iBitmapContext;
    }