diff options
Diffstat (limited to 'canvas/source/cairo/cairo_quartz_cairo.cxx')
| -rw-r--r-- | canvas/source/cairo/cairo_quartz_cairo.cxx | 347 |
1 files changed, 347 insertions, 0 deletions
diff --git a/canvas/source/cairo/cairo_quartz_cairo.cxx b/canvas/source/cairo/cairo_quartz_cairo.cxx new file mode 100644 index 000000000000..52626a0ae849 --- /dev/null +++ b/canvas/source/cairo/cairo_quartz_cairo.cxx @@ -0,0 +1,347 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_canvas.hxx" + +#ifdef QUARTZ +/************************************************************************ + * Mac OS X/Quartz surface backend for OpenOffice.org Cairo Canvas * + ************************************************************************/ + +#include <osl/diagnose.h> +#include <vcl/sysdata.hxx> +#include <vcl/bitmap.hxx> +#include <vcl/virdev.hxx> + +#include "cairo_cairo.hxx" + +#if defined CAIRO_HAS_QUARTZ_SURFACE + +#include "cairo_quartz_cairo.hxx" + +namespace cairo +{ + bool IsCairoWorking( OutputDevice* ) + { + // trivially true for Mac + return true; + } + + /** + * QuartzSurface::Surface: Create generic Canvas surface using given Cairo Surface + * + * @param pSurface Cairo Surface + * + * This constructor only stores data, it does no processing. + * It is used with e.g. cairo_image_surface_create_for_data() + * and QuartzSurface::getSimilar() + * + * Set the mpSurface to the new surface or NULL + **/ + QuartzSurface::QuartzSurface( const CairoSurfaceSharedPtr& pSurface ) : + mpView(NULL), + mpSurface( pSurface ) + { + // Necessary, context is lost otherwise + CGContextRetain( getCGContext() ); // == NULL for non-native surfaces + } + + /** + * QuartzSurface::Surface: Create Canvas surface from Window reference. + * @param NSView + * @param x horizontal location of the new surface + * @param y vertical location of the new surface + * @param width width of the new surface + * @param height height of the new surface + * + * pSysData contains the platform native Window reference. + * pSysData is used to create a surface on the Window + * + * Set the mpSurface to the new surface or NULL + **/ + QuartzSurface::QuartzSurface( NSView* pView, int x, int y, int width, int height ) : + mpView(pView), + mpSurface() + { + OSL_TRACE("Canvas::cairo::Surface(NSView*, x:%d, y:%d, w:%d, h:%d): New Surface for window", x, y, width, height); + + // on Mac OS X / Quartz we are not drawing directly to the screen, but via regular CGContextRef. + // The actual drawing to NSView (i.e. screen) is done in QuartzSurface::flush() + + // HACK: currently initial size for windowsurface is 0x0, which is not possible for us. + if (width == 0 || height == 0) { + width = [mpView bounds].size.width; + height = [mpView bounds].size.height; + OSL_TRACE("Canvas::cairo::Surface(): BUG!! size is ZERO! fixing to %d x %d...", width, height); + } + + // create a generic surface, NSView/Window is ARGB32. + mpSurface.reset( + cairo_quartz_surface_create(CAIRO_FORMAT_ARGB32, width, height), + &cairo_surface_destroy); + + cairo_surface_set_device_offset( mpSurface.get(), x, y ); + } + + /** + * QuartzSurface::Surface: Create Canvas surface from CGContextRef. + * @param CGContext Native graphics context + * @param x horizontal location of the new surface + * @param y vertical location of the new surface + * @param width width of the new surface + * @param height height of the new surface + * + * Set the mpSurface to the new surface or NULL + **/ + QuartzSurface::QuartzSurface( CGContextRef rContext, int x, int y, int width, int height ) : + mpView(NULL), + mpSurface() + { + OSL_TRACE("Canvas::cairo::Surface(CGContext:%p, x:%d, y:%d, w:%d, h:%d): New Surface.", rContext, x, y, width, height); + // create surface based on CGContext + + // ensure kCGBitmapByteOrder32Host flag, otherwise Cairo breaks (we are practically always using CGBitmapContext) + OSL_ASSERT ((CGBitmapContextGetBitsPerPixel(rContext) != 32) || + (CGBitmapContextGetBitmapInfo(rContext) & kCGBitmapByteOrderMask) == kCGBitmapByteOrder32Host); + + mpSurface.reset(cairo_quartz_surface_create_for_cg_context(rContext, width, height), + &cairo_surface_destroy); + + cairo_surface_set_device_offset( mpSurface.get(), x, y ); + + // Necessary, context is lost otherwise + CGContextRetain(rContext); + } + + + /** + * QuartzSurface::getCairo: Create Cairo (drawing object) for the Canvas surface + * + * @return new Cairo or NULL + **/ + CairoSharedPtr QuartzSurface::getCairo() const + { + if (mpSurface.get()){ + return CairoSharedPtr( cairo_create(mpSurface.get()), + &cairo_destroy ); + } else { + return CairoSharedPtr(); + } + } + + /** + * QuartzSurface::getSimilar: Create new similar Canvas surface + * @param aContent format of the new surface (cairo_content_t from cairo/src/cairo.h) + * @param width width of the new surface + * @param height height of the new surface + * + * Creates a new Canvas surface. This normally creates platform native surface, even though + * generic function is used. + * + * Cairo surface from aContent (cairo_content_t) + * + * @return new surface or NULL + **/ + SurfaceSharedPtr QuartzSurface::getSimilar( Content aContent, int width, int height ) const + { + return SurfaceSharedPtr( + new QuartzSurface( + CairoSurfaceSharedPtr( + cairo_surface_create_similar( mpSurface.get(), aContent, width, height ), + &cairo_surface_destroy ))); + } + + /** + * QuartzSurface::Resize: Resizes the Canvas surface. + * @param width new width of the surface + * @param height new height of the surface + * + * Only used on X11. + * + * @return The new surface or NULL + **/ + void QuartzSurface::Resize( int width, int height ) + { + OSL_ENSURE(false,"not supposed to be called!"); + } + + + /** + * QuartzSurface::flush: Draw the data to screen + **/ + void QuartzSurface::flush() const + { + // can only flush surfaces with NSView + if( !mpView ) return; + + OSL_TRACE("Canvas::cairo::QuartzSurface::flush(): flush to NSView"); + + CGContextRef mrContext = getCGContext(); + + if (!mrContext) return; + + [mpView lockFocus]; + + /** + * This code is using same screen update code as in VCL (esp. AquaSalGraphics::UpdateWindow() ) + */ + CGContextRef rViewContext = reinterpret_cast<CGContextRef>([[NSGraphicsContext currentContext] graphicsPort]); + CGImageRef xImage = CGBitmapContextCreateImage(mrContext); + CGContextDrawImage(rViewContext, + CGRectMake( 0, 0, + CGImageGetWidth(xImage), + CGImageGetHeight(xImage)), + xImage); + CGImageRelease( xImage ); + CGContextFlush( rViewContext ); + + [mpView unlockFocus]; + } + + /** + * QuartzSurface::getDepth: Get the color depth of the Canvas surface. + * + * @return color depth + **/ + int QuartzSurface::getDepth() const + { + if (mpSurface.get()) { + switch (cairo_surface_get_content (mpSurface.get())) { + case CAIRO_CONTENT_ALPHA: return 8; break; + case CAIRO_CONTENT_COLOR: return 24; break; + case CAIRO_CONTENT_COLOR_ALPHA: return 32; break; + } + } + OSL_TRACE("Canvas::cairo::QuartzSurface::getDepth(): ERROR - depth unspecified!"); + + return -1; + } + + /** + * QuartzSurface::getCGContext: Get the native CGContextRef of the Canvas's cairo surface + * + * @return graphics context + **/ + CGContextRef QuartzSurface::getCGContext() const + { + if (mpSurface.get()) + return cairo_quartz_surface_get_cg_context(mpSurface.get()); + else + return NULL; + } + + /** + * cairo::createVirtualDevice: Create a VCL virtual device for the CGContext in the cairo Surface + * + * @return The new virtual device + **/ + boost::shared_ptr<VirtualDevice> QuartzSurface::createVirtualDevice() const + { + SystemGraphicsData aSystemGraphicsData; + aSystemGraphicsData.nSize = sizeof(SystemGraphicsData); + aSystemGraphicsData.rCGContext = getCGContext(); + return boost::shared_ptr<VirtualDevice>( + new VirtualDevice( &aSystemGraphicsData, getDepth() )); + } + + /** + * cairo::createSurface: Create generic Canvas surface using given Cairo Surface + * + * @param rSurface Cairo Surface + * + * @return new Surface + */ + SurfaceSharedPtr createSurface( const CairoSurfaceSharedPtr& rSurface ) + { + return SurfaceSharedPtr(new QuartzSurface(rSurface)); + } + + /** + * cairo::createSurface: Create Canvas surface using given VCL Window or Virtualdevice + * + * @param rSurface Cairo Surface + * + * For VCL Window, use platform native system environment data (struct SystemEnvData in vcl/inc/sysdata.hxx) + * For VCL Virtualdevice, use platform native system graphics data (struct SystemGraphicsData in vcl/inc/sysdata.hxx) + * + * @return new Surface + */ + SurfaceSharedPtr createSurface( const OutputDevice& rRefDevice, + int x, int y, int width, int height ) + { + SurfaceSharedPtr surf; + + if( rRefDevice.GetOutDevType() == OUTDEV_WINDOW ) + { + const Window &rWindow = (const Window &) rRefDevice; + const SystemEnvData* pSysData = GetSysData(&rWindow); + if (pSysData) + surf = SurfaceSharedPtr(new QuartzSurface(pSysData->pView, x, y, width, height)); + } + else if( rRefDevice.GetOutDevType() == OUTDEV_VIRDEV ) + { + SystemGraphicsData aSysData = ((const VirtualDevice&) rRefDevice).GetSystemGfxData(); + + if (aSysData.rCGContext) + surf = SurfaceSharedPtr(new QuartzSurface(aSysData.rCGContext, x, y, width, height)); + } + return surf; + } + + /** + * cairo::createBitmapSurface: Create platfrom native Canvas surface from BitmapSystemData + * @param OutputDevice (not used) + * @param rData Platform native image data (struct BitmapSystemData in vcl/inc/bitmap.hxx) + * @param rSize width and height of the new surface + * + * Create a surface based on image data on rData + * + * @return new surface or empty surface + **/ + SurfaceSharedPtr createBitmapSurface( const OutputDevice& /* rRefDevice */, + const BitmapSystemData& rData, + const Size& rSize ) + { + OSL_TRACE( "requested size: %d x %d available size: %d x %d", + rSize.Width(), rSize.Height(), rData.mnWidth, rData.mnHeight ); + + if ( rData.mnWidth == rSize.Width() && rData.mnHeight == rSize.Height() ) + { + CGContextRef rContext = (CGContextRef)rData.rImageContext; + OSL_TRACE("Canvas::cairo::createBitmapSurface(): New native image surface, context = %p.", rData.rImageContext); + + return SurfaceSharedPtr(new QuartzSurface(rContext, 0, 0, rData.mnWidth, rData.mnHeight)); + } + return SurfaceSharedPtr(); + } + +} // namespace cairo + +#endif // CAIRO_HAS_QUARTZ_SURFACE + +#endif // QUARTZ |