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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* 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 INCLUDED_VCL_INC_QUARTZ_CGHELPER_HXX
#define INCLUDED_VCL_INC_QUARTZ_CGHELPER_HXX
#include <premac.h>
#include <CoreGraphics/CoreGraphics.h>
#include <postmac.h>
#include <quartz/utils.h>
class CGLayerHolder
{
private:
CGLayerRef mpLayer;
// Layer's scaling factor
float mfScale;
public:
CGLayerHolder()
: mpLayer(nullptr)
, mfScale(1.0)
{
}
CGLayerHolder(CGLayerRef pLayer, float fScale = 1.0)
: mpLayer(pLayer)
, mfScale(fScale)
{
}
// Just the size of the layer in pixels
CGSize getSizePixels() const
{
CGSize aSize;
if (mpLayer)
{
aSize = CGLayerGetSize(mpLayer);
}
return aSize;
}
// Size in points is size in pixels divided by the scaling factor
CGSize getSizePoints() const
{
CGSize aSize;
if (mpLayer)
{
const CGSize aLayerSize = getSizePixels();
aSize.width = aLayerSize.width / mfScale;
aSize.height = aLayerSize.height / mfScale;
}
return aSize;
}
CGLayerRef get() const { return mpLayer; }
bool isSet() const { return mpLayer != nullptr; }
void set(CGLayerRef const& pLayer) { mpLayer = pLayer; }
float getScale() const { return mfScale; }
void setScale(float fScale) { mfScale = fScale; }
};
class CGContextHolder
{
private:
CGContextRef mpContext;
public:
CGContextHolder()
: mpContext(nullptr)
{
}
CGContextHolder(CGContextRef pContext)
: mpContext(pContext)
{
}
CGContextRef get() const { return mpContext; }
bool isSet() const { return mpContext != nullptr; }
void set(CGContextRef const& pContext) { mpContext = pContext; }
void saveState() { CGContextSaveGState(mpContext); }
void restoreState() { CGContextRestoreGState(mpContext); }
};
#endif // INCLUDED_VCL_INC_QUARTZ_CGHELPER_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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