cppcanvas/source/uno/uno_mtfrenderer.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include <cppcanvas/vclfactory.hxx>
  11 #include <o3tl/any.hxx>
  12 #include <com/sun/star/rendering/XMtfRenderer.hpp>
  13 #include <com/sun/star/rendering/XBitmapCanvas.hpp>
  14 #include <com/sun/star/uno/XComponentContext.hpp>
  15 #include <com/sun/star/beans/XFastPropertySet.hpp>
  16 #include <comphelper/compbase.hxx>
  17 #include <vcl/gdimtf.hxx>
  18
  19 using namespace ::com::sun::star;
  20
  21 typedef comphelper::WeakComponentImplHelper<css::rendering::XMtfRenderer, css::beans::XFastPropertySet> MtfRendererBase;
  22
  23 namespace {
  24
  25 class MtfRenderer : public MtfRendererBase
  26 {
  27 public:
  28     MtfRenderer (css::uno::Sequence<css::uno::Any> const& args,
  29                  css::uno::Reference<css::uno::XComponentContext> const&);
  30
  31     // XMtfRenderer iface
  32     void SAL_CALL setMetafile (const css::uno::Sequence< sal_Int8 >& rMtf) override;
  33     void SAL_CALL draw (double fScaleX, double fScaleY) override;
  34
  35     // XFastPropertySet
  36     // setFastPropertyValue (0, GDIMetaFile*) is used to speedup the rendering
  37     virtual css::uno::Any SAL_CALL getFastPropertyValue(sal_Int32 /*nHandle*/) override { return css::uno::Any(); }
  38     virtual void SAL_CALL setFastPropertyValue(sal_Int32 nHandle, const css::uno::Any&) override;
  39
  40 private:
  41     GDIMetaFile* mpMetafile;
  42     css::uno::Reference<css::rendering::XBitmapCanvas> mxCanvas;
  43 };
  44
  45 void MtfRenderer::setMetafile (const uno::Sequence< sal_Int8 >& /*rMtf*/)
  46 {
  47         // printf ("MtfRenderer::setMetafile unimplemented, use fast property set or implement me\n");
  48 }
  49
  50 void MtfRenderer::draw (double fScaleX, double fScaleY)
  51 {
  52     if (mpMetafile && mxCanvas) {
  53         cppcanvas::BitmapCanvasSharedPtr canvas = cppcanvas::VCLFactory::createBitmapCanvas (mxCanvas);
  54         cppcanvas::RendererSharedPtr renderer = cppcanvas::VCLFactory::createRenderer (canvas, *mpMetafile, cppcanvas::Renderer::Parameters ());
  55         ::basegfx::B2DHomMatrix aMatrix;
  56         aMatrix.scale( fScaleX, fScaleY );
  57         canvas->setTransformation( aMatrix );
  58         renderer->draw ();
  59     }
  60 }
  61
  62 void MtfRenderer::setFastPropertyValue( sal_Int32 nHandle, const uno::Any& aAny)
  63 {
  64     if (nHandle == 0) {
  65         mpMetafile = reinterpret_cast<GDIMetaFile*>( *o3tl::doAccess<sal_Int64>(aAny) );
  66     }
  67 }
  68
  69 MtfRenderer::MtfRenderer (uno::Sequence<uno::Any> const& aArgs, uno::Reference<uno::XComponentContext> const&) : mpMetafile (nullptr)
  70 {
  71     if( aArgs.getLength() == 1 ) {
  72         aArgs[0] >>= mxCanvas;
  73     }
  74 }
  75
  76 } // namespace
  77
  78 extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
  79 com_sun_star_comp_rendering_MtfRenderer_get_implementation(
  80     css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const& args)
  81 {
  82     return cppu::acquire(new MtfRenderer(args, context));
  83 }
  84
  85 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */