/**************************************************************************** ** ** Copyright (C) 2015 The Qt Company Ltd. ** Contact: http://www.qt.io/licensing/ ** ** This file is part of the QtGui module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see http://www.qt.io/terms-conditions. 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These rights are described in The Qt Company LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3.0 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU General Public License version 3.0 requirements will be ** met: http://www.gnu.org/copyleft/gpl.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "qpaintdevice.h" #include "qpainter.h" #include "qwidget.h" #include "qbitmap.h" #include "qapplication.h" #include "qprinter.h" #include #include #include #include #include QT_BEGIN_NAMESPACE /***************************************************************************** Internal variables and functions *****************************************************************************/ /*! \internal */ float qt_mac_defaultDpi_x() { // Mac OS X currently assumes things to be 72 dpi. // (see http://developer.apple.com/releasenotes/GraphicsImaging/RN-ResolutionIndependentUI/) // This may need to be re-worked as we go further in the resolution-independence stuff. return 72; } /*! \internal */ float qt_mac_defaultDpi_y() { // Mac OS X currently assumes things to be 72 dpi. // (see http://developer.apple.com/releasenotes/GraphicsImaging/RN-ResolutionIndependentUI/) // This may need to be re-worked as we go further in the resolution-independence stuff. return 72; } /*! \internal Returns the QuickDraw CGrafPtr of the paint device. 0 is returned if it can't be obtained. Do not hold the pointer around for long as it can be relocated. \warning This function is only available on Mac OS X. */ Q_GUI_EXPORT GrafPtr qt_mac_qd_context(const QPaintDevice *device) { if (device->devType() == QInternal::Pixmap) { return static_cast(static_cast(device)->macQDHandle()); } else if(device->devType() == QInternal::Widget) { return static_cast(static_cast(device)->macQDHandle()); } else if(device->devType() == QInternal::Printer) { QPaintEngine *engine = static_cast(device)->paintEngine(); return static_cast(static_cast(engine)->handle()); } return 0; } extern CGColorSpaceRef qt_mac_colorSpaceForDeviceType(const QPaintDevice *pdev); /*! \internal Returns the CoreGraphics CGContextRef of the paint device. 0 is returned if it can't be obtained. It is the caller's responsiblity to CGContextRelease the context when finished using it. \warning This function is only available on Mac OS X. */ Q_GUI_EXPORT CGContextRef qt_mac_cg_context(const QPaintDevice *pdev) { if (pdev->devType() == QInternal::Pixmap) { const QPixmap *pm = static_cast(pdev); CGColorSpaceRef colorspace = qt_mac_colorSpaceForDeviceType(pdev); uint flags = kCGImageAlphaPremultipliedFirst; #ifdef kCGBitmapByteOrder32Host //only needed because CGImage.h added symbols in the minor version flags |= kCGBitmapByteOrder32Host; #endif CGContextRef ret = 0; // It would make sense to put this into a mac #ifdef'ed // virtual function in the QPixmapData at some point if (pm->data->classId() == QPixmapData::MacClass) { const QMacPixmapData *pmData = static_cast(pm->data.data()); ret = CGBitmapContextCreate(pmData->pixels, pmData->w, pmData->h, 8, pmData->bytesPerRow, colorspace, flags); if(!ret) qWarning("QPaintDevice: Unable to create context for pixmap (%d/%d/%d)", pmData->w, pmData->h, (pmData->bytesPerRow * pmData->h)); } else if (pm->data->classId() == QPixmapData::RasterClass) { QImage *image = pm->data->buffer(); ret = CGBitmapContextCreate(image->bits(), image->width(), image->height(), 8, image->bytesPerLine(), colorspace, flags); } CGContextTranslateCTM(ret, 0, pm->height()); CGContextScaleCTM(ret, 1, -1); return ret; } else if (pdev->devType() == QInternal::Widget) { CGContextRef ret = static_cast(static_cast(pdev)->macCGHandle()); CGContextRetain(ret); return ret; } else if (pdev->devType() == QInternal::MacQuartz) { return static_cast(pdev)->cgContext(); } return 0; } QT_END_NAMESPACE