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-rw-r--r--toolkit/source/layout/core/box.cxx284
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diff --git a/toolkit/source/layout/core/box.cxx b/toolkit/source/layout/core/box.cxx
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-/* -*- 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.
- *
- ************************************************************************/
-
-#include "box.hxx"
-
-#include <tools/debug.hxx>
-#include <sal/macros.h>
-
-// fixed point precision for distributing error
-#define FIXED_PT 16
-
-namespace layoutimpl
-{
-
-using namespace css;
-
-Box::ChildProps::ChildProps( Box::ChildData *pData )
-{
- addProp( RTL_CONSTASCII_USTRINGPARAM( "Expand" ),
- ::getCppuType( static_cast< const sal_Bool* >( NULL ) ),
- &(pData->mbExpand) );
- addProp( RTL_CONSTASCII_USTRINGPARAM( "Fill" ),
- ::getCppuType( static_cast< const sal_Bool* >( NULL ) ),
- &(pData->mbFill) );
- addProp( RTL_CONSTASCII_USTRINGPARAM( "Padding" ),
- ::getCppuType( static_cast< const sal_Int32* >( NULL ) ),
- &(pData->mnPadding) );
-}
-
-Box::ChildData::ChildData( uno::Reference< awt::XLayoutConstrains > const& xChild )
- : Box_Base::ChildData( xChild )
- , mnPadding( 0 )
- , mbExpand( true )
- , mbFill( true )
-{
-}
-
-Box::ChildData*
-Box::createChild( uno::Reference< awt::XLayoutConstrains > const& xChild )
- {
- return new ChildData( xChild );
- }
-
-Box::ChildProps*
-Box::createChildProps( Box_Base::ChildData *pData )
-{
- return new ChildProps( static_cast<Box::ChildData*> ( pData ) );
-}
-
-Box::Box( bool horizontal )
- : Box_Base()
- , mnSpacing( 0 )
- , mbHomogeneous( false )
- , mbHorizontal( horizontal )
-{
- addProp( RTL_CONSTASCII_USTRINGPARAM( "Homogeneous" ),
- ::getCppuType( static_cast< const sal_Bool* >( NULL ) ),
- &mbHomogeneous );
- addProp( RTL_CONSTASCII_USTRINGPARAM( "Spacing" ),
- ::getCppuType( static_cast< const sal_Int32* >( NULL ) ),
- &mnSpacing );
- mbHasFlowChildren = false;
-}
-
-awt::Size
-Box::calculateSize( long nWidth )
-{
- int nVisibleChildren = 0;
- // primary vs secundary axis (instead of a X and Y)
- int nPrimSize = 0;
- int nSecSize = 0;
- int nFlowMinWidth = 0; // in case the box only has flow children
-
- mbHasFlowChildren = false;
-
- for ( std::list<Box_Base::ChildData *>::const_iterator it
- = maChildren.begin(); it != maChildren.end(); ++it )
- {
- ChildData *child = static_cast<Box::ChildData*> ( *it );
- if ( !child->isVisible() )
- continue;
-
- uno::Reference< awt::XLayoutContainer > xChildCont( child->mxChild, uno::UNO_QUERY );
- bool bFlow = xChildCont.is() && xChildCont->hasHeightForWidth();
-
- awt::Size aChildSize = child->maRequisition = child->mxChild->getMinimumSize();
-
- if ( !mbHorizontal /*vertical*/ && bFlow )
- {
- if ( nFlowMinWidth == 0 || nFlowMinWidth > aChildSize.Width )
- nFlowMinWidth = aChildSize.Width;
- mbHasFlowChildren = true;
- }
- else
- {
- int size = primDim( aChildSize ) + child->mnPadding * 2;
- if ( mbHomogeneous )
- nPrimSize = SAL_MAX( nPrimSize, size );
- else
- nPrimSize += size;
-
- nSecSize = SAL_MAX( nSecSize, secDim( aChildSize ) );
- }
- nVisibleChildren++;
- }
-
- if ( nVisibleChildren )
- {
- if ( mbHomogeneous )
- nPrimSize *= nVisibleChildren;
- nPrimSize += (nVisibleChildren - 1) * mnSpacing;
- }
-
- if ( mbHasFlowChildren )
- {
- if ( nWidth == 0 )
- nWidth = nSecSize ? nSecSize : nFlowMinWidth;
- for ( std::list<Box_Base::ChildData *>::const_iterator it
- = maChildren.begin(); it != maChildren.end(); ++it )
- {
- ChildData *child = static_cast<Box::ChildData*> ( *it );
- if ( !child->isVisible() )
- continue;
-
- uno::Reference< awt::XLayoutContainer > xChildCont( child->mxChild, uno::UNO_QUERY );
- bool bFlow = xChildCont.is() && xChildCont->hasHeightForWidth();
-
- if ( bFlow )
- nPrimSize += xChildCont->getHeightForWidth( nWidth );
- }
- }
-
- nPrimSize += mnBorderWidth * 2;
- nSecSize += mnBorderWidth * 2;
- return awt::Size( mbHorizontal ? nPrimSize : nSecSize,
- mbHorizontal ? nSecSize : nPrimSize );
-}
-
-awt::Size SAL_CALL
-Box::getMinimumSize() throw(uno::RuntimeException)
-{
- maRequisition = calculateSize();
- return maRequisition;
-}
-
-sal_Bool SAL_CALL
-Box::hasHeightForWidth()
- throw(uno::RuntimeException)
-{
- return mbHasFlowChildren;
-}
-
-sal_Int32 SAL_CALL
-Box::getHeightForWidth( sal_Int32 nWidth )
- throw(uno::RuntimeException)
-{
- if ( hasHeightForWidth() )
- return calculateSize( nWidth ).Height;
- return maRequisition.Height;
-}
-
-void SAL_CALL
-Box::allocateArea( const awt::Rectangle &newArea )
- throw (uno::RuntimeException)
-{
- maAllocation = newArea;
- int nVisibleChildren = 0, nExpandChildren = 0;
-
- for ( std::list<Box_Base::ChildData *>::const_iterator it
- = maChildren.begin(); it != maChildren.end(); ++it )
- {
- ChildData *child = static_cast<Box::ChildData*> ( *it );
- if ( child->isVisible() )
- {
- nVisibleChildren++;
- if ( child->mbExpand )
- nExpandChildren++;
- }
- }
- if ( !nVisibleChildren )
- return;
-
- // split rectangle for dimension helpers
- awt::Point newPoint( newArea.X, newArea.Y );
- awt::Size newSize( newArea.Width, newArea.Height );
-
- int nExtraSpace;
- if ( mbHomogeneous )
- nExtraSpace = ( ( primDim( newSize ) - mnBorderWidth * 2 -
- ( nVisibleChildren - 1 ) * mnSpacing )) / nVisibleChildren;
- else if ( nExpandChildren )
- {
- int reqSize = primDim( maRequisition );
- if ( !mbHorizontal && hasHeightForWidth() )
- reqSize = getHeightForWidth( newArea.Width );
- nExtraSpace = ( primDim( newSize ) - reqSize ) / nExpandChildren;
- }
- else
- nExtraSpace = 0;
-
- int nChildPrimPoint, nChildSecPoint, nChildPrimSize, nChildSecSize;
-
- int nStartPoint = primDim( newPoint ) + mnBorderWidth;
- int nBoxSecSize = SAL_MAX( 1, secDim( newSize ) - mnBorderWidth * 2 );
-
- for ( std::list<Box_Base::ChildData *>::const_iterator it
- = maChildren.begin(); it != maChildren.end(); ++it )
- {
- ChildData *child = static_cast<Box::ChildData*> ( *it );
- if ( !child->isVisible() )
- continue;
-
- awt::Point aChildPos;
- int nBoxPrimSize; // of the available box space
-
- if ( mbHomogeneous )
- nBoxPrimSize = nExtraSpace;
- else
- {
- uno::Reference< awt::XLayoutContainer > xChildCont( child->mxChild, uno::UNO_QUERY );
- bool bFlow = xChildCont.is() && xChildCont->hasHeightForWidth();
- if ( !mbHorizontal && bFlow )
- nBoxPrimSize = xChildCont->getHeightForWidth( newArea.Width );
- else
- nBoxPrimSize = primDim( child->maRequisition );
- nBoxPrimSize += child->mnPadding;
- if ( child->mbExpand )
- nBoxPrimSize += nExtraSpace;
- }
-
- nChildPrimPoint = nStartPoint + child->mnPadding;
- nChildSecPoint = secDim( newPoint ) + mnBorderWidth;
-
- nChildSecSize = nBoxSecSize;
- if ( child->mbFill )
- nChildPrimSize = SAL_MAX( 1, nBoxPrimSize - child->mnPadding);
- else
- {
- nChildPrimSize = primDim( child->maRequisition );
- nChildPrimPoint += (nBoxPrimSize - nChildPrimSize) / 2;
-
- nChildSecPoint += (nBoxSecSize - nChildSecSize) / 2;
- }
-
- awt::Rectangle area;
- area.X = mbHorizontal ? nChildPrimPoint : nChildSecPoint;
- area.Y = mbHorizontal ? nChildSecPoint : nChildPrimPoint;
- area.Width = mbHorizontal ? nChildPrimSize : nChildSecSize;
- area.Height = mbHorizontal ? nChildSecSize : nChildPrimSize;
-
- allocateChildAt( child->mxChild, area );
-
- nStartPoint += nBoxPrimSize + mnSpacing + child->mnPadding;
- }
-}
-
-} // namespace layoutimpl
-
-/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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