diff options
Diffstat (limited to 'canvas/source/cairo/cairo_win32_cairo.cxx')
| -rw-r--r-- | canvas/source/cairo/cairo_win32_cairo.cxx | 330 |
1 files changed, 330 insertions, 0 deletions
diff --git a/canvas/source/cairo/cairo_win32_cairo.cxx b/canvas/source/cairo/cairo_win32_cairo.cxx new file mode 100644 index 000000000000..d286604706c6 --- /dev/null +++ b/canvas/source/cairo/cairo_win32_cairo.cxx @@ -0,0 +1,330 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * 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. + * + ************************************************************************/ + +#define _WIN32_WINNT 0x0500 + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_canvas.hxx" + +#ifdef WNT +/************************************************************************ + * Win32 surface backend for OpenOffice.org Cairo Canvas * + ************************************************************************/ + +#include <tools/prewin.h> +#include <windows.h> +#include <tools/postwin.h> + +#include <osl/diagnose.h> +#include <vcl/bitmap.hxx> +#include <vcl/virdev.hxx> +#include <vcl/sysdata.hxx> + +#include "cairo_win32_cairo.hxx" + +#ifdef CAIRO_HAS_WIN32_SURFACE + +namespace cairo +{ + +#include <cairo-win32.h> + + bool IsCairoWorking( OutputDevice* ) + { + // trivially true for Windows + return true; + } + + /** + * Surface::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 Surface::getSimilar() + * + * Set the mpSurface to the new surface or NULL + **/ + Win32Surface::Win32Surface( const CairoSurfaceSharedPtr& pSurface ) : + mpSurface( pSurface ) + {} + + /** + * Surface::Surface: Create Canvas surface from Window reference. + * @param pSysData Platform native system environment data (struct SystemEnvData in vcl/inc/sysdata.hxx) + * @param x horizontal location of the new surface + * @param y vertical location 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 + **/ + Win32Surface::Win32Surface( HDC hDC, int x, int y) : + mpSurface( + cairo_win32_surface_create(hDC), + &cairo_surface_destroy) + { + cairo_surface_set_device_offset( mpSurface.get(), x, y ); + } + + /** + * Surface::Surface: Create platfrom native Canvas surface from BitmapSystemData + * @param pBmpData Platform native image data (struct BitmapSystemData in vcl/inc/bitmap.hxx) + * + * Create a surface based on image data on pBmpData + * + * Set the mpSurface to the new surface or NULL + **/ + Win32Surface::Win32Surface( const BitmapSystemData& rBmpData ) : + mpSurface() + { + OSL_ASSERT(rBmpData.pDIB == NULL); + + if(rBmpData.pDIB != NULL) { + // So just leave mpSurface to NULL, little else we can do at + // this stage. Hopefully the Win32 patch to + // cairocanvas::DeviceHelper::getSurface(BitmapSystemData&, + // const Size&) will catch the cases where this + // constructor would be called with a DIB bitmap, and we + // will never get here. At least it worked for Ballmer.ppt. + } + else + { + HDC hDC = CreateCompatibleDC(NULL); + void* hOrigBitmap; + OSL_TRACE ("Surface::Surface(): Selecting bitmap %p into DC %p", rBmpData.pDDB, hDC); + hOrigBitmap = SelectObject( hDC, (HANDLE)rBmpData.pDDB ); + if(hOrigBitmap == NULL) + OSL_TRACE ("SelectObject failed: %d", GetLastError ()); + mpSurface.reset( + cairo_win32_surface_create(hDC), + &cairo_surface_destroy); + } + } + + /** + * Surface::getCairo: Create Cairo (drawing object) for the Canvas surface + * + * @return new Cairo or NULL + **/ + CairoSharedPtr Win32Surface::getCairo() const + { + return CairoSharedPtr( cairo_create(mpSurface.get()), + &cairo_destroy ); + } + + /** + * Surface::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 Win32Surface::getSimilar( Content aContent, int width, int height ) const + { + return SurfaceSharedPtr( + new Win32Surface( + CairoSurfaceSharedPtr( + cairo_surface_create_similar( mpSurface.get(), aContent, width, height ), + &cairo_surface_destroy ))); + } + + /** + * Surface::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 Win32Surface::Resize( int /*width*/, int /*height*/ ) + { + OSL_ENSURE(false,"not supposed to be called!"); + } + + void Win32Surface::flush() const + { + GdiFlush(); + } + + /** + * Surface::getDepth: Get the color depth of the Canvas surface. + * + * @return color depth + **/ + int Win32Surface::getDepth() const + { + if (mpSurface) { + 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::Surface::getDepth(): ERROR - depth unspecified!"); + return -1; + } + + + /** + * cairo::createVirtualDevice: Create a VCL virtual device for the CGContext in the cairo Surface + * + * @return The new virtual device + **/ + boost::shared_ptr<VirtualDevice> Win32Surface::createVirtualDevice() const + { + SystemGraphicsData aSystemGraphicsData; + aSystemGraphicsData.nSize = sizeof(SystemGraphicsData); + aSystemGraphicsData.hDC = cairo_win32_surface_get_dc( mpSurface.get() ); + + return boost::shared_ptr<VirtualDevice>( + new VirtualDevice( &aSystemGraphicsData, sal::static_int_cast<USHORT>(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 Win32Surface(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 && pSysData->hWnd) + surf = SurfaceSharedPtr(new Win32Surface(GetDC((HWND) pSysData->hWnd), x, y)); + } + else if( rRefDevice.GetOutDevType() == OUTDEV_VIRDEV ) + { + SystemGraphicsData aSysData = ((const VirtualDevice&) rRefDevice).GetSystemGfxData(); + if (aSysData.hDC) + surf = SurfaceSharedPtr(new Win32Surface((HDC) aSysData.hDC, x, y)); + } + 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() ) + return SurfaceSharedPtr(new Win32Surface( rData )); + else + return SurfaceSharedPtr(); + } + + + /** + * cairo::ucs4toindex: Convert ucs4 char to glyph index + * @param ucs4 an ucs4 char + * @param hfont current font + * + * @return true if successful + **/ + unsigned long ucs4toindex(unsigned int ucs4, HFONT hfont) + { + wchar_t unicode[2]; + WORD glyph_index; + HDC hdc = NULL; + int i = 0; + + hdc = CreateCompatibleDC (NULL); + + if (!hdc) return 0; + if (!SetGraphicsMode (hdc, GM_ADVANCED)) { + DeleteDC (hdc); + return 0; + } + + SelectObject (hdc, hfont); + SetMapMode (hdc, MM_TEXT); + + unicode[0] = ucs4; + unicode[1] = 0; + if (GetGlyphIndicesW (hdc, unicode, 1, &glyph_index, 0) == GDI_ERROR) { + glyph_index = 0; + } + + DeleteDC (hdc); + return glyph_index; + } + + +} // namespace cairo + +#endif // CAIRO_HAS_WIN32_SURFACE + +#endif // WNT + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |