Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 158 insertions, 0 deletions

diff --git a/canvas/source/vcl/canvascustomsprite.cxx b/canvas/source/vcl/canvascustomsprite.cxx
new file mode 100644
index 000000000..4bdebd448
--- /dev/null
+++ b/canvas/source/vcl/canvascustomsprite.cxx
@@ -0,0 +1,158 @@
+/* -*- 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <sal/config.h>
+
+#include <basegfx/point/b2dpoint.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <tools/diagnose_ex.h>
+#include <vcl/outdev.hxx>
+
+#include "canvascustomsprite.hxx"
+
+using namespace ::com::sun::star;
+
+
+namespace vclcanvas
+{
+
+    CanvasCustomSprite::CanvasCustomSprite( const geometry::RealSize2D&               rSpriteSize,
+                                            rendering::XGraphicDevice&                rDevice,
+                                            const ::canvas::SpriteSurface::Reference& rOwningSpriteCanvas,
+                                            const OutDevProviderSharedPtr&            rOutDevProvider,
+                                            bool                                      bShowSpriteBounds )
+    {
+        ENSURE_OR_THROW( rOwningSpriteCanvas &&
+                         rOutDevProvider,
+                         "CanvasCustomSprite::CanvasCustomSprite(): Invalid sprite canvas" );
+
+        // setup back buffer
+
+
+        const ::Size aSize(
+            static_cast<sal_Int32>( std::max( 1.0,
+                                                ceil( rSpriteSize.Width ))),  // round up to nearest int,
+                                                                              // enforce sprite to have at
+                                                                               // least (1,1) pixel size
+            static_cast<sal_Int32>( std::max( 1.0,
+                                                ceil( rSpriteSize.Height ))) );
+
+        // create content backbuffer in screen depth
+        BackBufferSharedPtr pBackBuffer = std::make_shared<BackBuffer>( rOutDevProvider->getOutDev() );
+        pBackBuffer->setSize( aSize );
+
+        // create mask backbuffer
+        BackBufferSharedPtr pBackBufferMask = std::make_shared<BackBuffer>( rOutDevProvider->getOutDev() );
+        pBackBufferMask->setSize( aSize );
+
+        // TODO(F1): Implement alpha vdev (could prolly enable
+        // antialiasing again, then)
+
+        // disable font antialiasing (causes ugly shadows otherwise)
+        pBackBuffer->getOutDev().SetAntialiasing( AntialiasingFlags::DisableText );
+        pBackBufferMask->getOutDev().SetAntialiasing( AntialiasingFlags::DisableText );
+
+        // set mask vdev drawmode, such that everything is painted
+        // black. That leaves us with a binary image, white for
+        // background, black for painted content
+        pBackBufferMask->getOutDev().SetDrawMode( DrawModeFlags::BlackLine | DrawModeFlags::BlackFill | DrawModeFlags::BlackText |
+                                                  DrawModeFlags::BlackGradient | DrawModeFlags::BlackBitmap );
+
+
+        // setup canvas helper
+
+
+        // always render into back buffer, don't preserve state (it's
+        // our private VDev, after all), have notion of alpha
+        maCanvasHelper.init( rDevice,
+                             pBackBuffer,
+                             false,
+                             true );
+        maCanvasHelper.setBackgroundOutDev( pBackBufferMask );
+
+
+        // setup sprite helper
+
+
+        maSpriteHelper.init( rSpriteSize,
+                             rOwningSpriteCanvas,
+                             pBackBuffer,
+                             pBackBufferMask,
+                             bShowSpriteBounds );
+
+        // clear sprite to 100% transparent
+        maCanvasHelper.clear();
+    }
+
+    OUString SAL_CALL CanvasCustomSprite::getImplementationName()
+    {
+        return "VCLCanvas.CanvasCustomSprite";
+    }
+
+    sal_Bool SAL_CALL CanvasCustomSprite::supportsService( const OUString& ServiceName )
+    {
+        return cppu::supportsService( this, ServiceName );
+    }
+
+    uno::Sequence< OUString > SAL_CALL CanvasCustomSprite::getSupportedServiceNames()
+    {
+        return { "com.sun.star.rendering.CanvasCustomSprite" };
+    }
+
+    // Sprite
+    void CanvasCustomSprite::redraw( OutputDevice& rOutDev,
+                                     bool          bBufferedUpdate ) const
+    {
+        SolarMutexGuard aGuard;
+
+        redraw( rOutDev, maSpriteHelper.getPosPixel(), bBufferedUpdate );
+    }
+
+    void CanvasCustomSprite::redraw( OutputDevice&              rOutDev,
+                                     const ::basegfx::B2DPoint& rOrigOutputPos,
+                                     bool                       bBufferedUpdate ) const
+    {
+        SolarMutexGuard aGuard;
+
+        maSpriteHelper.redraw( rOutDev,
+                               rOrigOutputPos,
+                               mbSurfaceDirty,
+                               bBufferedUpdate );
+
+        mbSurfaceDirty = false;
+    }
+
+    bool CanvasCustomSprite::repaint( const GraphicObjectSharedPtr& rGrf,
+                                      const rendering::ViewState&   viewState,
+                                      const rendering::RenderState& renderState,
+                                      const ::Point&                rPt,
+                                      const ::Size&                 rSz,
+                                      const GraphicAttr&            rAttr ) const
+    {
+        SolarMutexGuard aGuard;
+
+        mbSurfaceDirty = true;
+
+        return maCanvasHelper.repaint( rGrf, viewState, renderState, rPt, rSz, rAttr );
+    }
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */