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| -rw-r--r-- | slideshow/source/inc/tools.hxx | 396 |
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diff --git a/slideshow/source/inc/tools.hxx b/slideshow/source/inc/tools.hxx new file mode 100644 index 000000000..edfefe246 --- /dev/null +++ b/slideshow/source/inc/tools.hxx @@ -0,0 +1,396 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_SLIDESHOW_SOURCE_INC_TOOLS_HXX +#define INCLUDED_SLIDESHOW_SOURCE_INC_TOOLS_HXX + +#include <com/sun/star/uno/Sequence.hxx> +#include <com/sun/star/beans/XPropertySet.hpp> +#include <com/sun/star/uno/Reference.hxx> +#include <com/sun/star/animations/XAnimationNode.hpp> +#include <com/sun/star/container/XEnumerationAccess.hpp> +#include <com/sun/star/container/XEnumeration.hpp> +#include <comphelper/random.hxx> +#include <sal/log.hxx> + +#include <cppcanvas/color.hxx> + +#include "shapeattributelayer.hxx" +#include "shape.hxx" +#include "rgbcolor.hxx" +#include "hslcolor.hxx" + +#include <memory> + +namespace com::sun::star::beans { struct NamedValue; } +namespace basegfx +{ + class B2DRange; + class B2DVector; + class B2IVector; + class B2DHomMatrix; + typedef B2IVector B2ISize; +} +namespace cppcanvas{ class Canvas; } + +class GDIMetaFile; + +/* Definition of some animation tools */ +namespace slideshow +{ + namespace internal + { + class UnoView; + class Shape; + class ShapeAttributeLayer; + typedef std::shared_ptr< UnoView > UnoViewSharedPtr; + typedef std::shared_ptr< GDIMetaFile > GDIMetaFileSharedPtr; + + template <typename T> + inline ::std::size_t hash_value( T const * p ) + { + ::std::size_t d = static_cast< ::std::size_t >( + reinterpret_cast< ::std::ptrdiff_t >(p) ); + return d + (d >> 3); + } + + template <typename T> + struct hash + { + ::std::size_t operator()( T const& val ) const { + return hash_value(val); + } + }; + } +} + +namespace com::sun::star::uno { + + template <typename T> + inline ::std::size_t hash_value( + css::uno::Reference<T> const& x ) + { + // normalize to object root, because _only_ XInterface is defined + // to be stable during object lifetime: + css::uno::Reference< css::uno::XInterface> const xRoot( x, css::uno::UNO_QUERY ); + return slideshow::internal::hash<void *>()(xRoot.get()); + } + +} + +namespace slideshow +{ + namespace internal + { + // Value extraction from Any + // ========================= + + /// extract unary double value from Any + bool extractValue( double& o_rValue, + const css::uno::Any& rSourceAny, + const ShapeSharedPtr& rShape, + const basegfx::B2DVector& rSlideBounds ); + + /// extract int from Any + bool extractValue( sal_Int32& o_rValue, + const css::uno::Any& rSourceAny, + const ShapeSharedPtr& rShape, + const basegfx::B2DVector& rSlideBounds ); + + /// extract enum/constant group value from Any + bool extractValue( sal_Int16& o_rValue, + const css::uno::Any& rSourceAny, + const ShapeSharedPtr& rShape, + const basegfx::B2DVector& rSlideBounds ); + + /// extract color value from Any + bool extractValue( RGBColor& o_rValue, + const css::uno::Any& rSourceAny, + const ShapeSharedPtr& rShape, + const basegfx::B2DVector& rSlideBounds ); + + /// extract color value from Any + bool extractValue( HSLColor& o_rValue, + const css::uno::Any& rSourceAny, + const ShapeSharedPtr& rShape, + const basegfx::B2DVector& rSlideBounds ); + + /// extract plain string from Any + bool extractValue( OUString& o_rValue, + const css::uno::Any& rSourceAny, + const ShapeSharedPtr& rShape, + const basegfx::B2DVector& rSlideBounds ); + + /// extract bool value from Any + bool extractValue( bool& o_rValue, + const css::uno::Any& rSourceAny, + const ShapeSharedPtr& rShape, + const basegfx::B2DVector& rSlideBounds ); + + /// extract double 2-tuple from Any + bool extractValue( basegfx::B2DTuple& o_rPair, + const css::uno::Any& rSourceAny, + const ShapeSharedPtr& rShape, + const basegfx::B2DVector& rSlideBounds ); + + /** Search a sequence of NamedValues for a given element. + + @return true, if the sequence contains the specified + element. + */ + bool findNamedValue( css::uno::Sequence< css::beans::NamedValue > const& rSequence, + const css::beans::NamedValue& rSearchKey ); + + basegfx::B2DRange calcRelativeShapeBounds( const basegfx::B2DVector& rPageSize, + const basegfx::B2DRange& rShapeBounds ); + + /** Get the shape transformation from the attribute set + + @param rBounds + Original shape bound rect (to substitute default attribute + layer values) + + @param pAttr + Attribute set. Might be NULL (then, rBounds is used to set + a simple scale and translate of the unit rect to rBounds). + */ + basegfx::B2DHomMatrix getShapeTransformation( + const basegfx::B2DRectangle& rBounds, + const ShapeAttributeLayerSharedPtr& pAttr ); + + /** Get a shape's sprite transformation from the attribute set + + @param rPixelSize + Pixel size of the sprite + + @param rOrigSize + Original shape size (i.e. the size of the actual sprite + content, in the user coordinate system) + + @param pAttr + Attribute set. Might be NULL (then, rBounds is used to set + a simple scale and translate of the unit rect to rBounds). + + @return the transformation to be applied to the sprite. + */ + basegfx::B2DHomMatrix getSpriteTransformation( + const basegfx::B2DVector& rPixelSize, + const basegfx::B2DVector& rOrigSize, + const ShapeAttributeLayerSharedPtr& pAttr ); + + /** Calc update area for a shape. + + This method calculates the 'covered' area for the shape, + i.e. the rectangle that is affected when rendering the + shape. Apart from applying the given transformation to the + shape rectangle, this method also takes attributes into + account, which further scale the output (e.g. character + sizes). + + @param rUnitBounds + Shape bounds, in the unit rect coordinate space + + @param rShapeTransform + Transformation matrix the shape should undergo. + + @param pAttr + Current shape attributes + */ + basegfx::B2DRectangle getShapeUpdateArea( + const basegfx::B2DRectangle& rUnitBounds, + const basegfx::B2DHomMatrix& rShapeTransform, + const ShapeAttributeLayerSharedPtr& pAttr ); + + /** Calc update area for a shape. + + This method calculates the 'covered' area for the shape, + i.e. the rectangle that is affected when rendering the + shape. The difference from the other getShapeUpdateArea() + method is the fact that this one works without + ShapeAttributeLayer, and only scales up the given shape + user coordinate bound rect. The method is typically used + to retrieve user coordinate system bound rects for shapes + which are smaller than the default unit bound rect + (because e.g. of subsetting) + + @param rUnitBounds + Shape bounds, in the unit rect coordinate space + + @param rShapeBounds + Current shape bounding box in user coordinate space. + */ + basegfx::B2DRange getShapeUpdateArea( const basegfx::B2DRange& rUnitBounds, + const basegfx::B2DRange& rShapeBounds ); + + /** Calc output position and size of shape, according to given + attribute layer. + + Rotations, shears etc. and not taken into account, + i.e. the returned rectangle is NOT the bounding box. Use + it as if aBounds.getMinimum() is the output position and + aBounds.getRange() the scaling of the shape. + */ + basegfx::B2DRectangle getShapePosSize( + const basegfx::B2DRectangle& rOrigBounds, + const ShapeAttributeLayerSharedPtr& pAttr ); + + /** Convert a plain UNO API 32 bit int to RGBColor + */ + RGBColor unoColor2RGBColor( sal_Int32 ); + /** Convert an IntSRGBA to plain UNO API 32 bit int + */ + sal_Int32 RGBAColor2UnoColor( cppcanvas::IntSRGBA ); + + /** Fill a plain rectangle on the given canvas with the given color + */ + void fillRect( const cppcanvas::CanvasSharedPtr& rCanvas, + const basegfx::B2DRectangle& rRect, + cppcanvas::IntSRGBA aFillColor ); + + /** Init canvas with default background (white) + */ + void initSlideBackground( const cppcanvas::CanvasSharedPtr& rCanvas, + const basegfx::B2ISize& rSize ); + + /// Gets a random ordinal [0,n) + inline ::std::size_t getRandomOrdinal( const ::std::size_t n ) + { + return comphelper::rng::uniform_size_distribution(0, n-1); + } + + template <typename ValueType> + inline bool getPropertyValue( + ValueType & rValue, + css::uno::Reference< + css::beans::XPropertySet> const & xPropSet, + OUString const & propName ) + { + try { + const css::uno::Any& a( + xPropSet->getPropertyValue( propName ) ); + bool const bRet = css::uno::fromAny(a, &rValue); +#if OSL_DEBUG_LEVEL > 0 + if( !bRet ) + SAL_INFO("slideshow", __func__ << ": while retrieving property " << propName << ", cannot extract Any of type " + << a.getValueTypeRef()->pTypeName); +#endif + return bRet; + } + catch (css::uno::RuntimeException &) + { + throw; + } + catch (css::uno::Exception &) + { + return false; + } + } + + template <typename ValueType> + inline bool getPropertyValue( + css::uno::Reference< ValueType >& rIfc, + css::uno::Reference< css::beans::XPropertySet> const & xPropSet, + OUString const & propName ) + { + try + { + const css::uno::Any& a(xPropSet->getPropertyValue( propName )); + rIfc.set( a, css::uno::UNO_QUERY ); + + bool const bRet = rIfc.is(); +#if OSL_DEBUG_LEVEL > 0 + if( !bRet ) + SAL_INFO("slideshow", __func__ << ": while retrieving property " << propName << ", cannot extract Any of type " + << a.getValueTypeRef()->pTypeName << " to interface"); +#endif + return bRet; + } + catch (css::uno::RuntimeException &) + { + throw; + } + catch (css::uno::Exception &) + { + return false; + } + } + + /// Get the content of the BoundRect shape property + basegfx::B2DRectangle getAPIShapeBounds( const css::uno::Reference< css::drawing::XShape >& xShape ); + +/* + TODO(F1): When ZOrder someday becomes usable enable this + + /// Get the content of the ZOrder shape property + double getAPIShapePrio( const css::uno::Reference< css::drawing::XShape >& xShape ); +*/ + + basegfx::B2IVector getSlideSizePixel( const basegfx::B2DVector& rSize, + const UnoViewSharedPtr& pView ); + } + + // TODO(Q1): this could possibly be implemented with a somewhat + // more lightweight template, by having the actual worker receive + // only a function pointer, and a thin templated wrapper around + // that which converts member functions into that. + + /** Apply given functor to every animation node child. + + @param xNode + Parent node + + @param rFunctor + Functor to apply. The functor must have an appropriate + operator()( const css::uno::Reference< css::animations::XAnimationNode >& ) member. + + @return true, if the functor was successfully applied to + all children, false otherwise. + */ + template< typename Functor > inline bool for_each_childNode( const css::uno::Reference< css::animations::XAnimationNode >& xNode, + Functor& rFunctor ) + { + try + { + // get an XEnumerationAccess to the children + css::uno::Reference< css::container::XEnumerationAccess > + xEnumerationAccess( xNode, + css::uno::UNO_QUERY_THROW ); + css::uno::Reference< css::container::XEnumeration > + xEnumeration( xEnumerationAccess->createEnumeration(), + css::uno::UNO_SET_THROW ); + + while( xEnumeration->hasMoreElements() ) + { + css::uno::Reference< css::animations::XAnimationNode > + xChildNode( xEnumeration->nextElement(), + css::uno::UNO_QUERY_THROW ); + rFunctor( xChildNode ); + } + return true; + } + catch( css::uno::Exception& ) + { + return false; + } + } +} + +#endif // INCLUDED_SLIDESHOW_SOURCE_INC_TOOLS_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |