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path: root/sw/source/ui/docvw/HeaderFooterWin.cxx
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * Version: MPL 1.1 / GPLv3+ / LGPLv3+
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License or as specified alternatively below. You may obtain a copy of
 * the License at http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * Major Contributor(s):
 * [ Copyright (C) 2011 SUSE <cbosdonnat@suse.com> (initial developer) ]
 *
 * All Rights Reserved.
 *
 * For minor contributions see the git repository.
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 3 or later (the "GPLv3+"), or
 * the GNU Lesser General Public License Version 3 or later (the "LGPLv3+"),
 * in which case the provisions of the GPLv3+ or the LGPLv3+ are applicable
 * instead of those above.
 */

#include <app.hrc>
#include <docvw.hrc>
#include <globals.hrc>
#include <popup.hrc>
#include <svtools/svtools.hrc>

#include <cmdid.h>
#include <DashedLine.hxx>
#include <docsh.hxx>
#include <edtwin.hxx>
#include <fmthdft.hxx>
#include <HeaderFooterWin.hxx>
#include <pagedesc.hxx>
#include <pagefrm.hxx>
#include <SwRewriter.hxx>
#include <view.hxx>
#include <viewopt.hxx>
#include <wrtsh.hxx>

#include <basegfx/color/bcolortools.hxx>
#include <basegfx/matrix/b2dhommatrixtools.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/range/b2drectangle.hxx>
#include <basegfx/vector/b2dsize.hxx>
#include <drawinglayer/attribute/fillgradientattribute.hxx>
#include <drawinglayer/attribute/fontattribute.hxx>
#include <drawinglayer/primitive2d/fillgradientprimitive2d.hxx>
#include <drawinglayer/primitive2d/modifiedcolorprimitive2d.hxx>
#include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
#include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
#include <drawinglayer/primitive2d/textlayoutdevice.hxx>
#include <drawinglayer/primitive2d/textprimitive2d.hxx>
#include <editeng/boxitem.hxx>
#include <svtools/svtdata.hxx>
#include <svx/hdft.hxx>
#include <svx/sdr/contact/objectcontacttools.hxx>
#include <vcl/decoview.hxx>
#include <vcl/gradient.hxx>
#include <vcl/menubtn.hxx>
#include <vcl/svapp.hxx>

#define TEXT_PADDING 5
#define BOX_DISTANCE 10
#define BUTTON_WIDTH 18

using namespace basegfx;
using namespace basegfx::tools;
using namespace drawinglayer::attribute;
using namespace drawinglayer::primitive2d;

namespace
{
    static basegfx::BColor lcl_GetFillColor( basegfx::BColor aLineColor )
    {
        basegfx::BColor aHslLine = basegfx::tools::rgb2hsl( aLineColor );
        double nLuminance = aHslLine.getZ() * 2.5;
        if ( nLuminance == 0 )
            nLuminance = 0.5;
        else if ( nLuminance >= 1.0 )
            nLuminance = aHslLine.getZ() * 0.4;
        aHslLine.setZ( nLuminance );
        return basegfx::tools::hsl2rgb( aHslLine );
    }

    static basegfx::BColor lcl_GetLighterGradientColor( basegfx::BColor aDarkColor )
    {
        basegfx::BColor aHslDark = basegfx::tools::rgb2hsl( aDarkColor );
        double nLuminance = aHslDark.getZ() * 255 + 20;
        aHslDark.setZ( nLuminance / 255.0 );
        return basegfx::tools::hsl2rgb( aHslDark );
    }

    static B2DPolygon lcl_GetPolygon( const Rectangle& rRect, bool bHeader )
    {
        const double nRadius = 3;
        const double nKappa((M_SQRT2 - 1.0) * 4.0 / 3.0);

        B2DPolygon aPolygon;
        aPolygon.append( B2DPoint( rRect.Left(), rRect.Top() ) );

        {
            B2DPoint aCorner( rRect.Left(), rRect.Bottom() );
            B2DPoint aStart( rRect.Left(), rRect.Bottom() - nRadius );
            B2DPoint aEnd( rRect.Left() + nRadius, rRect.Bottom() );
            aPolygon.append( aStart );
            aPolygon.appendBezierSegment(
                    interpolate( aStart, aCorner, nKappa ),
                    interpolate( aEnd, aCorner, nKappa ),
                    aEnd );
        }

        {
            B2DPoint aCorner( rRect.Right(), rRect.Bottom() );
            B2DPoint aStart( rRect.Right() - nRadius, rRect.Bottom() );
            B2DPoint aEnd( rRect.Right(), rRect.Bottom() - nRadius );
            aPolygon.append( aStart );
            aPolygon.appendBezierSegment(
                    interpolate( aStart, aCorner, nKappa ),
                    interpolate( aEnd, aCorner, nKappa ),
                    aEnd );
        }

        aPolygon.append( B2DPoint( rRect.Right(), rRect.Top() ) );

        if ( !bHeader )
        {
            B2DRectangle aBRect( rRect.Left(), rRect.Top(), rRect.Right(), rRect.Bottom() );
            B2DHomMatrix aRotation = createRotateAroundPoint(
                   aBRect.getCenterX(), aBRect.getCenterY(), M_PI );
            aPolygon.transform( aRotation );
        }

        return aPolygon;
    }
}


SwHeaderFooterWin::SwHeaderFooterWin( SwEditWin* pEditWin, const SwPageFrm* pPageFrm, bool bHeader ) :
    MenuButton( pEditWin, WB_DIALOGCONTROL ),
    SwFrameControl( pEditWin, pPageFrm ),
    m_sLabel( ),
    m_bIsHeader( bHeader ),
    m_pPopupMenu( NULL ),
    m_pLine( NULL ),
    m_bIsAppearing( false ),
    m_nFadeRate( 100 ),
    m_nDelayAppearing( 0 ),
    m_aFadeTimer( )
{
    // Get the font and configure it
    Font aFont = GetSettings().GetStyleSettings().GetToolFont();
    SetZoomedPointFont( aFont );

    // Use pixels for the rest of the drawing
    SetMapMode( MapMode ( MAP_PIXEL ) );

    // Create the line control
    m_pLine = new SwDashedLine( GetEditWin(), &SwViewOption::GetHeaderFooterMarkColor );
    m_pLine->SetZOrder( this, WINDOW_ZORDER_BEFOR );

    // Create and set the PopupMenu
    m_pPopupMenu = new PopupMenu( SW_RES( MN_HEADERFOOTER_BUTTON ) );

    // Rewrite the menu entries' text
    if ( m_bIsHeader )
    {
        m_pPopupMenu->SetItemText( FN_HEADERFOOTER_EDIT, SW_RESSTR( STR_FORMAT_HEADER ) );
        m_pPopupMenu->SetItemText( FN_HEADERFOOTER_DELETE, SW_RESSTR( STR_DELETE_HEADER ) );
    }
    else
    {
        m_pPopupMenu->SetItemText( FN_HEADERFOOTER_EDIT, SW_RESSTR( STR_FORMAT_FOOTER ) );
        m_pPopupMenu->SetItemText( FN_HEADERFOOTER_DELETE, SW_RESSTR( STR_DELETE_FOOTER ) );
    }

    SetPopupMenu( m_pPopupMenu );

    m_aFadeTimer.SetTimeout( 50 );
    m_aFadeTimer.SetTimeoutHdl( LINK( this, SwHeaderFooterWin, FadeHandler ) );
}

SwHeaderFooterWin::~SwHeaderFooterWin( )
{
    delete m_pPopupMenu;
    delete m_pLine;
}

const SwPageFrm* SwHeaderFooterWin::GetPageFrame( )
{
    return static_cast< const SwPageFrm * >( GetFrame( ) );
}

void SwHeaderFooterWin::SetOffset( Point aOffset, long nXLineStart, long nXLineEnd )
{
    // Compute the text to show
    m_sLabel = ResId::toString( SW_RES( STR_HEADER_TITLE ) );
    if ( !m_bIsHeader )
        m_sLabel = ResId::toString( SW_RES( STR_FOOTER_TITLE ) );
    sal_Int32 nPos = m_sLabel.lastIndexOf( rtl::OUString::createFromAscii( "%1" ) );
    m_sLabel = m_sLabel.replaceAt( nPos, 2, GetPageFrame()->GetPageDesc()->GetName() );

    // Compute the text size and get the box position & size from it
    Rectangle aTextRect;
    GetTextBoundRect( aTextRect, String( m_sLabel ) );
    Rectangle aTextPxRect = LogicToPixel( aTextRect );

    Size  aBoxSize ( aTextPxRect.GetWidth() + BUTTON_WIDTH + TEXT_PADDING * 2,
                     aTextPxRect.GetHeight() + TEXT_PADDING  * 2 );

    long nYFooterOff = 0;
    if ( !m_bIsHeader )
        nYFooterOff = aBoxSize.Height();

    Point aBoxPos( aOffset.X() - aBoxSize.Width() - BOX_DISTANCE,
                   aOffset.Y() - nYFooterOff );

    if ( Application::GetSettings().GetLayoutRTL() )
    {
        aBoxPos.setX( aOffset.X() + BOX_DISTANCE );
    }

    // Set the position & Size of the window
    SetPosSizePixel( aBoxPos, aBoxSize );

    double nYLinePos = aBoxPos.Y();
    if ( !m_bIsHeader )
        nYLinePos += aBoxSize.Height();
    Point aLinePos( nXLineStart, nYLinePos );
    Size aLineSize( nXLineEnd - nXLineStart, 1 );
    m_pLine->SetPosSizePixel( aLinePos, aLineSize );
}

void SwHeaderFooterWin::ShowAll( bool bShow )
{
    if ( !PopupMenu::IsInExecute() )
    {
        m_bIsAppearing = bShow;
        if ( bShow )
            m_nDelayAppearing = 0;

        if ( m_aFadeTimer.IsActive( ) )
            m_aFadeTimer.Stop();
        m_aFadeTimer.Start( );
    }
}

bool SwHeaderFooterWin::Contains( const Point &rDocPt ) const
{
    Rectangle aRect( GetPosPixel(), GetSizePixel() );
    if ( aRect.IsInside( rDocPt ) )
        return true;

    Rectangle aLineRect( m_pLine->GetPosPixel(), m_pLine->GetSizePixel() );
    if ( aLineRect.IsInside( rDocPt ) )
        return true;

    return false;
}

void SwHeaderFooterWin::Paint( const Rectangle& )
{
    const Rectangle aRect( Rectangle( Point( 0, 0 ), PixelToLogic( GetSizePixel() ) ) );
    Primitive2DSequence aSeq( 3 );

    B2DPolygon aPolygon = lcl_GetPolygon( aRect, m_bIsHeader );

    // Colors
    basegfx::BColor aLineColor = SwViewOption::GetHeaderFooterMarkColor().getBColor();
    basegfx::BColor aFillColor = lcl_GetFillColor( aLineColor );
    basegfx::BColor aLighterColor = lcl_GetLighterGradientColor( aFillColor );

    const StyleSettings& rSettings = Application::GetSettings().GetStyleSettings();
    if ( rSettings.GetHighContrastMode() )
    {
        aLineColor = rSettings.GetDialogTextColor().getBColor();

        aFillColor = rSettings.GetDialogColor( ).getBColor();
        aLineColor = rSettings.GetDialogTextColor( ).getBColor();

        aSeq[0] = Primitive2DReference( new PolyPolygonColorPrimitive2D(
                B2DPolyPolygon( aPolygon ), aFillColor ) );
    }
    else
    {
        B2DRectangle aGradientRect( aRect.Left(), aRect.Top(), aRect.Right(), aRect.Bottom() );
        double nAngle = M_PI;
        if ( m_bIsHeader )
            nAngle = 0;
        FillGradientAttribute aFillAttrs( GRADIENTSTYLE_LINEAR, 0.0, 0.0, 0.0, nAngle,
                aLighterColor, aFillColor, 10 );
        aSeq[0] = Primitive2DReference( new FillGradientPrimitive2D(
                aGradientRect, aFillAttrs ) );
    }

    // Create the border lines primitive
    aSeq[1] = Primitive2DReference( new PolygonHairlinePrimitive2D(
            aPolygon, aLineColor ) );

    // Create the text primitive
    B2DVector aFontSize;
    FontAttribute aFontAttr = getFontAttributeFromVclFont(
           aFontSize, GetFont(), false, false );

    Rectangle aTextRect;
    GetTextBoundRect( aTextRect, String( m_sLabel ) );

    FontMetric aFontMetric = GetFontMetric( GetFont() );
    double nTextOffsetY = aFontMetric.GetHeight() - aFontMetric.GetDescent() + TEXT_PADDING;
    Point aTextPos( TEXT_PADDING, nTextOffsetY );

    basegfx::B2DHomMatrix aTextMatrix( createScaleTranslateB2DHomMatrix(
                aFontSize.getX(), aFontSize.getY(),
                double( aTextPos.X() ), double( aTextPos.Y() ) ) );

    aSeq[2] = Primitive2DReference( new TextSimplePortionPrimitive2D(
                aTextMatrix,
                String( m_sLabel ), 0, m_sLabel.getLength(),
                std::vector< double >( ),
                aFontAttr,
                com::sun::star::lang::Locale(),
                aLineColor ) );

    // Create the 'plus' or 'arrow' primitive
    B2DRectangle aSignArea( B2DPoint( aRect.Right() - BUTTON_WIDTH, 0.0 ),
                            B2DSize( aRect.Right(), aRect.getHeight() ) );

    B2DPolygon aSign;
    if ( IsEmptyHeaderFooter( ) )
    {
        // Create the + polygon
        double nLeft = aSignArea.getMinX() + TEXT_PADDING;
        double nRight = aSignArea.getMaxX() - TEXT_PADDING;
        double nHalfW = ( nRight - nLeft ) / 2.0;

        double nTop = aSignArea.getCenterY() - nHalfW;
        double nBottom = aSignArea.getCenterY() + nHalfW;

        aSign.append( B2DPoint( nLeft, aSignArea.getCenterY() - 1.0 ) );
        aSign.append( B2DPoint( aSignArea.getCenterX() - 1.0, aSignArea.getCenterY() - 1.0 ) );
        aSign.append( B2DPoint( aSignArea.getCenterX() - 1.0, nTop ) );
        aSign.append( B2DPoint( aSignArea.getCenterX() + 1.0, nTop ) );
        aSign.append( B2DPoint( aSignArea.getCenterX() + 1.0, aSignArea.getCenterY() - 1.0 ) );
        aSign.append( B2DPoint( nRight, aSignArea.getCenterY() - 1.0 ) );
        aSign.append( B2DPoint( nRight, aSignArea.getCenterY() + 1.0 ) );
        aSign.append( B2DPoint( aSignArea.getCenterX() + 1.0, aSignArea.getCenterY() + 1.0 ) );
        aSign.append( B2DPoint( aSignArea.getCenterX() + 1.0, nBottom ) );
        aSign.append( B2DPoint( aSignArea.getCenterX() - 1.0, nBottom ) );
        aSign.append( B2DPoint( aSignArea.getCenterX() - 1.0, aSignArea.getCenterY() + 1.0  ) );
        aSign.append( B2DPoint( nLeft, aSignArea.getCenterY() + 1.0  ) );
        aSign.setClosed( true );
    }
    else
    {
        // Create the v polygon
        B2DPoint aLeft( aSignArea.getMinX() + TEXT_PADDING, aSignArea.getCenterY() );
        B2DPoint aRight( aSignArea.getMaxX() - TEXT_PADDING, aSignArea.getCenterY() );
        B2DPoint aBottom( ( aLeft.getX() + aRight.getX() ) / 2.0, aLeft.getY() + 4.0 );
        aSign.append( aLeft );
        aSign.append( aRight );
        aSign.append( aBottom );
        aSign.setClosed( true );
    }

    BColor aSignColor = Color( COL_BLACK ).getBColor( );
    if ( Application::GetSettings().GetStyleSettings().GetHighContrastMode() )
        aSignColor = Color( COL_WHITE ).getBColor( );

    aSeq.realloc( aSeq.getLength() + 1 );
    aSeq[ aSeq.getLength() - 1 ] = Primitive2DReference( new PolyPolygonColorPrimitive2D(
            B2DPolyPolygon( aSign ), aSignColor ) );

    // Create the processor and process the primitives
    const drawinglayer::geometry::ViewInformation2D aNewViewInfos;
    drawinglayer::processor2d::BaseProcessor2D * pProcessor =
        sdr::contact::createBaseProcessor2DFromOutputDevice(
                    *this, aNewViewInfos );

    // TODO Ghost it all if needed
    Primitive2DSequence aGhostedSeq( 1 );
    double nFadeRate = double( m_nFadeRate ) / 100.0;
    aGhostedSeq[0] = Primitive2DReference( new ModifiedColorPrimitive2D(
                aSeq, BColorModifier( Color( COL_WHITE ).getBColor(), 1.0 - nFadeRate, BCOLORMODIFYMODE_INTERPOLATE ) ) );

    pProcessor->process( aGhostedSeq );
    delete pProcessor;
}

bool SwHeaderFooterWin::IsEmptyHeaderFooter( )
{
    bool bResult = true;

    // Actually check it
    const SwPageDesc* pDesc = GetPageFrame()->GetPageDesc();

    const SwFrmFmt* pFmt = pDesc->GetLeftFmt();
    if ( GetPageFrame()->OnRightPage() )
         pFmt = pDesc->GetRightFmt();

    if ( pFmt )
    {
        if ( m_bIsHeader )
            bResult = !pFmt->GetHeader().IsActive();
        else
            bResult = !pFmt->GetFooter().IsActive();
    }

    return bResult;
}

void SwHeaderFooterWin::ExecuteCommand( sal_uInt16 nSlot )
{
    SwView& rView = GetEditWin()->GetView();
    SwWrtShell& rSh = rView.GetWrtShell();

    const String& rStyleName = GetPageFrame()->GetPageDesc()->GetName();
    switch ( nSlot )
    {
        case FN_HEADERFOOTER_EDIT:
            {
                sal_uInt16 nPageId = TP_FOOTER_PAGE;
                if ( m_bIsHeader )
                    nPageId = TP_HEADER_PAGE;

                rView.GetDocShell()->FormatPage(
                        rStyleName,
                        nPageId, &rSh );
            }
            break;
        case FN_HEADERFOOTER_BORDERBACK:
            {
                const SwPageDesc* pDesc = GetPageFrame()->GetPageDesc();
                const SwFrmFmt& rMaster = pDesc->GetMaster();
                SwFrmFmt* pHFFmt = const_cast< SwFrmFmt* >( rMaster.GetFooter().GetFooterFmt() );
                if ( m_bIsHeader )
                    pHFFmt = const_cast< SwFrmFmt* >( rMaster.GetHeader().GetHeaderFmt() );


                SfxItemPool* pPool = pHFFmt->GetAttrSet().GetPool();
                SfxItemSet aSet( *pPool,
                       RES_BACKGROUND, RES_BACKGROUND,
                       RES_BOX, RES_BOX,
                       SID_ATTR_BORDER_INNER, SID_ATTR_BORDER_INNER,
                       RES_SHADOW, RES_SHADOW, 0 );

                aSet.Put( pHFFmt->GetAttrSet() );

                // Create a box info item... needed by the dialog
                SvxBoxInfoItem aBoxInfo( SID_ATTR_BORDER_INNER );
                const SfxPoolItem *pBoxInfo;
                if ( SFX_ITEM_SET == pHFFmt->GetAttrSet().GetItemState( SID_ATTR_BORDER_INNER,
                                                        sal_True, &pBoxInfo) )
                    aBoxInfo = *(SvxBoxInfoItem*)pBoxInfo;

                aBoxInfo.SetTable( sal_False );
                aBoxInfo.SetDist( sal_True);
                aBoxInfo.SetMinDist( sal_False );
                aBoxInfo.SetDefDist( MIN_BORDER_DIST );
                aBoxInfo.SetValid( VALID_DISABLE );
                aSet.Put( aBoxInfo );

                if ( svx::ShowBorderBackgroundDlg( this, &aSet, true ) )
                {
                    const SfxPoolItem* pItem;
                    if ( SFX_ITEM_SET == aSet.GetItemState( RES_BACKGROUND, sal_False, &pItem ) )
                        pHFFmt->SetFmtAttr( *pItem );

                    if ( SFX_ITEM_SET == aSet.GetItemState( RES_BOX, sal_False, &pItem ) )
                        pHFFmt->SetFmtAttr( *pItem );

                    if ( SFX_ITEM_SET == aSet.GetItemState( RES_SHADOW, sal_False, &pItem ) )
                        pHFFmt->SetFmtAttr( *pItem );
                }
            }
            break;
        case FN_HEADERFOOTER_DELETE:
            {
                rSh.ChangeHeaderOrFooter( rStyleName, m_bIsHeader, false, true );
            }
            break;
        default:
            break;
    }
}

void SwHeaderFooterWin::SetReadonly( bool bReadonly )
{
    ShowAll( !bReadonly );
}

void SwHeaderFooterWin::MouseButtonDown( const MouseEvent& rMEvt )
{
    if ( IsEmptyHeaderFooter( ) )
    {
        SwView& rView = GetEditWin()->GetView();
        SwWrtShell& rSh = rView.GetWrtShell();

        const String& rStyleName = GetPageFrame()->GetPageDesc()->GetName();
        rSh.ChangeHeaderOrFooter( rStyleName, m_bIsHeader, true, false );
    }
    else
        MenuButton::MouseButtonDown( rMEvt );
}

void SwHeaderFooterWin::Select( )
{
    ExecuteCommand( GetCurItemId() );
}

IMPL_LINK( SwHeaderFooterWin, FadeHandler, Timer *, EMPTYARG )
{
    const int TICKS_BEFORE_WE_APPEAR = 10;
    if ( m_bIsAppearing && m_nDelayAppearing < TICKS_BEFORE_WE_APPEAR )
    {
        ++m_nDelayAppearing;
        m_aFadeTimer.Start();
        return 0;
    }

    if ( m_bIsAppearing && m_nFadeRate > 0 )
        m_nFadeRate -= 25;
    else if ( !m_bIsAppearing && m_nFadeRate < 100 )
        m_nFadeRate += 25;

    if ( m_nFadeRate != 100 && !IsVisible() )
    {
        Show( true );
        m_pLine->Show( true );
    }
    else if ( m_nFadeRate == 100 && IsVisible( ) )
    {
        Show( false );
        m_pLine->Show( false );
    }
    else
        Invalidate();

    if ( IsVisible( ) && m_nFadeRate > 0 && m_nFadeRate < 100 )
        m_aFadeTimer.Start();

    return 0;
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */