path: root/svx/source/sdr/contact/viewcontactofsdrpage.cxx

/* -*- 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 <sdr/contact/viewcontactofsdrpage.hxx>
#include <svx/sdr/contact/viewobjectcontact.hxx>
#include <svx/svdpage.hxx>
#include <svx/sdr/contact/displayinfo.hxx>
#include <sdr/contact/viewobjectcontactofsdrpage.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <svx/svdpagv.hxx>
#include <svx/svdview.hxx>
#include <vcl/svapp.hxx>
#include <svx/sdr/contact/objectcontact.hxx>
#include <drawinglayer/primitive2d/backgroundcolorprimitive2d.hxx>
#include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
#include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <svx/sdr/primitive2d/sdrattributecreator.hxx>
#include <svx/sdr/primitive2d/sdrdecompositiontools.hxx>
#include <vcl/lazydelete.hxx>
#include <vcl/settings.hxx>
#include <svx/svdstr.hrc>
#include <svdglob.hxx>
#include <drawinglayer/primitive2d/discreteshadowprimitive2d.hxx>
#include <drawinglayer/attribute/sdrfillattribute.hxx>

namespace sdr { namespace contact {

ViewContactOfPageSubObject::ViewContactOfPageSubObject(ViewContactOfSdrPage& rParentViewContactOfSdrPage)
:   mrParentViewContactOfSdrPage(rParentViewContactOfSdrPage)
{
}

ViewContactOfPageSubObject::~ViewContactOfPageSubObject()
{
}

ViewContact* ViewContactOfPageSubObject::GetParentContact() const
{
    return &mrParentViewContactOfSdrPage;
}

const SdrPage& ViewContactOfPageSubObject::getPage() const
{
    return mrParentViewContactOfSdrPage.GetSdrPage();
}

ViewObjectContact& ViewContactOfPageBackground::CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact)
{
    ViewObjectContact* pRetval = new ViewObjectContactOfPageBackground(rObjectContact, *this);
    DBG_ASSERT(pRetval, "ViewContact::CreateObjectSpecificViewObjectContact() failed (!)");

    return *pRetval;
}

drawinglayer::primitive2d::Primitive2DSequence ViewContactOfPageBackground::createViewIndependentPrimitive2DSequence() const
{
    // We have only the page information, not the view information. Use the
    // svtools::DOCCOLOR color for initialisation
    const svtools::ColorConfig aColorConfig;
    const Color aInitColor(aColorConfig.GetColorValue(svtools::DOCCOLOR).nColor);
    const basegfx::BColor aRGBColor(aInitColor.getBColor());
    const drawinglayer::primitive2d::Primitive2DReference xReference(
        new drawinglayer::primitive2d::BackgroundColorPrimitive2D(aRGBColor));

    return drawinglayer::primitive2d::Primitive2DSequence(&xReference, 1);
}

ViewContactOfPageBackground::ViewContactOfPageBackground(ViewContactOfSdrPage& rParentViewContactOfSdrPage)
:   ViewContactOfPageSubObject(rParentViewContactOfSdrPage)
{
}

ViewContactOfPageBackground::~ViewContactOfPageBackground()
{
}

ViewObjectContact& ViewContactOfPageShadow::CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact)
{
    ViewObjectContact* pRetval = new ViewObjectContactOfPageShadow(rObjectContact, *this);
    DBG_ASSERT(pRetval, "ViewContact::CreateObjectSpecificViewObjectContact() failed (!)");

    return *pRetval;
}

drawinglayer::primitive2d::Primitive2DSequence ViewContactOfPageShadow::createViewIndependentPrimitive2DSequence() const
{
    static bool bUseOldPageShadow(false);
    const SdrPage& rPage = getPage();
    basegfx::B2DHomMatrix aPageMatrix;
    aPageMatrix.set(0, 0, (double)rPage.GetWdt());
    aPageMatrix.set(1, 1, (double)rPage.GetHgt());

    if(bUseOldPageShadow)
    {
        // create page shadow polygon
        const double fPageBorderFactor(1.0 / 256.0);
        basegfx::B2DPolygon aPageShadowPolygon;
        aPageShadowPolygon.append(basegfx::B2DPoint(1.0, fPageBorderFactor));
        aPageShadowPolygon.append(basegfx::B2DPoint(1.0 + fPageBorderFactor, fPageBorderFactor));
        aPageShadowPolygon.append(basegfx::B2DPoint(1.0 + fPageBorderFactor, 1.0 + fPageBorderFactor));
        aPageShadowPolygon.append(basegfx::B2DPoint(fPageBorderFactor, 1.0 + fPageBorderFactor));
        aPageShadowPolygon.append(basegfx::B2DPoint(fPageBorderFactor, 1.0));
        aPageShadowPolygon.append(basegfx::B2DPoint(1.0, 1.0));
        aPageShadowPolygon.setClosed(true);
        aPageShadowPolygon.transform(aPageMatrix);

        // We have only the page information, not the view information. Use the
        // svtools::FONTCOLOR color for initialisation
        const svtools::ColorConfig aColorConfig;
        const Color aShadowColor(aColorConfig.GetColorValue(svtools::FONTCOLOR).nColor);
        const basegfx::BColor aRGBShadowColor(aShadowColor.getBColor());
        const drawinglayer::primitive2d::Primitive2DReference xReference(
            new drawinglayer::primitive2d::PolyPolygonColorPrimitive2D(
                basegfx::B2DPolyPolygon(aPageShadowPolygon),
                aRGBShadowColor));

        return drawinglayer::primitive2d::Primitive2DSequence(&xReference, 1);
    }
    else
    {
        static vcl::DeleteOnDeinit< drawinglayer::primitive2d::DiscreteShadow > aDiscreteShadow(
            new drawinglayer::primitive2d::DiscreteShadow(
                BitmapEx(
                    ResId(
                        SIP_SA_PAGESHADOW35X35,
                        *ImpGetResMgr()))));

        if(aDiscreteShadow.get())
        {
            const drawinglayer::primitive2d::Primitive2DReference xReference(
                new drawinglayer::primitive2d::DiscreteShadowPrimitive2D(
                    aPageMatrix,
                    *aDiscreteShadow.get()));

            return drawinglayer::primitive2d::Primitive2DSequence(&xReference, 1);
        }

        return drawinglayer::primitive2d::Primitive2DSequence();
    }
}

ViewContactOfPageShadow::ViewContactOfPageShadow(ViewContactOfSdrPage& rParentViewContactOfSdrPage)
:   ViewContactOfPageSubObject(rParentViewContactOfSdrPage)
{
}

ViewContactOfPageShadow::~ViewContactOfPageShadow()
{
}

ViewObjectContact& ViewContactOfMasterPage::CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact)
{
    ViewObjectContact* pRetval = new ViewObjectContactOfMasterPage(rObjectContact, *this);
    DBG_ASSERT(pRetval, "ViewContact::CreateObjectSpecificViewObjectContact() failed (!)");

    return *pRetval;
}

drawinglayer::primitive2d::Primitive2DSequence ViewContactOfMasterPage::createViewIndependentPrimitive2DSequence() const
{
    drawinglayer::primitive2d::Primitive2DSequence xRetval;

    // this class is used when the page is a MasterPage and is responsible to
    // create a visualisation for the MPBGO, if exists. This needs to be suppressed
    // when a SdrPage which uses a MasterPage creates it's output. Suppression
    // is done in the corresponding VOC since DisplayInfo data is needed
    const SdrPage& rPage = getPage();

    if(rPage.IsMasterPage())
    {
        if(0 == rPage.GetPageNum())
        {
            // #i98063#
            // filter MasterPage 0 since it's the HandoutPage. Thus, it's a
            // MasterPage, but has no MPBGO, so there is nothing to do here.
        }
        else
        {
            drawinglayer::attribute::SdrFillAttribute aFill;

            // #i110846# Suppress SdrPage FillStyle for MasterPages without StyleSheets,
            // else the PoolDefault (XFILL_COLOR and Blue8) will be used. Normally, all
            // MasterPages should have a StyleSheet excactly for this reason, but historically
            // e.g. the Notes MasterPage has no StyleSheet set (and there maybe others).
            if(rPage.getSdrPageProperties().GetStyleSheet())
            {
                // create page fill attributes with correct properties
                aFill = drawinglayer::primitive2d::createNewSdrFillAttribute(
                    rPage.getSdrPageProperties().GetItemSet());
            }

            if(!aFill.isDefault())
            {
                // direct model data is the page size, get and use it
                const basegfx::B2DRange aInnerRange(
                    rPage.GetLftBorder(), rPage.GetUppBorder(),
                    rPage.GetWdt() - rPage.GetRgtBorder(), rPage.GetHgt() - rPage.GetLwrBorder());
                const basegfx::B2DPolygon aInnerPolgon(basegfx::tools::createPolygonFromRect(aInnerRange));
                const drawinglayer::primitive2d::Primitive2DReference xReference(
                    drawinglayer::primitive2d::createPolyPolygonFillPrimitive(
                        basegfx::B2DPolyPolygon(aInnerPolgon),
                        aFill,
                        drawinglayer::attribute::FillGradientAttribute()));

                xRetval = drawinglayer::primitive2d::Primitive2DSequence(&xReference, 1);
            }
        }
    }

    return xRetval;
}

ViewContactOfMasterPage::ViewContactOfMasterPage(ViewContactOfSdrPage& rParentViewContactOfSdrPage)
:   ViewContactOfPageSubObject(rParentViewContactOfSdrPage)
{
}

ViewContactOfMasterPage::~ViewContactOfMasterPage()
{
}

ViewObjectContact& ViewContactOfPageFill::CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact)
{
    ViewObjectContact* pRetval = new ViewObjectContactOfPageFill(rObjectContact, *this);
    DBG_ASSERT(pRetval, "ViewContact::CreateObjectSpecificViewObjectContact() failed (!)");

    return *pRetval;
}

drawinglayer::primitive2d::Primitive2DSequence ViewContactOfPageFill::createViewIndependentPrimitive2DSequence() const
{
    const SdrPage& rPage = getPage();
    const basegfx::B2DRange aPageFillRange(0.0, 0.0, (double)rPage.GetWdt(), (double)rPage.GetHgt());
    const basegfx::B2DPolygon aPageFillPolygon(basegfx::tools::createPolygonFromRect(aPageFillRange));

    // We have only the page information, not the view information. Use the
    // svtools::DOCCOLOR color for initialisation
    const svtools::ColorConfig aColorConfig;
    const Color aPageFillColor(aColorConfig.GetColorValue(svtools::DOCCOLOR).nColor);

    // create and add primitive
    const basegfx::BColor aRGBColor(aPageFillColor.getBColor());
    const drawinglayer::primitive2d::Primitive2DReference xReference(new drawinglayer::primitive2d::PolyPolygonColorPrimitive2D(basegfx::B2DPolyPolygon(aPageFillPolygon), aRGBColor));

    return drawinglayer::primitive2d::Primitive2DSequence(&xReference, 1);
}

ViewContactOfPageFill::ViewContactOfPageFill(ViewContactOfSdrPage& rParentViewContactOfSdrPage)
:   ViewContactOfPageSubObject(rParentViewContactOfSdrPage)
{
}

ViewContactOfPageFill::~ViewContactOfPageFill()
{
}

ViewObjectContact& ViewContactOfOuterPageBorder::CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact)
{
    ViewObjectContact* pRetval = new ViewObjectContactOfOuterPageBorder(rObjectContact, *this);
    DBG_ASSERT(pRetval, "ViewContact::CreateObjectSpecificViewObjectContact() failed (!)");

    return *pRetval;
}

drawinglayer::primitive2d::Primitive2DSequence ViewContactOfOuterPageBorder::createViewIndependentPrimitive2DSequence() const
{
    drawinglayer::primitive2d::Primitive2DSequence xRetval;
    const SdrPage& rPage = getPage();
    const basegfx::B2DRange aPageBorderRange(0.0, 0.0, (double)rPage.GetWdt(), (double)rPage.GetHgt());

    // Changed to 0x949599 for renaissance, before svtools::FONTCOLOR was used.
    // Added old case as fallback for HighContrast.
    basegfx::BColor aRGBBorderColor(0x94 / (double)0xff, 0x95 / (double)0xff, 0x99 / (double)0xff);

    if(Application::GetSettings().GetStyleSettings().GetHighContrastMode())
    {
        const svtools::ColorConfig aColorConfig;
        const Color aBorderColor(aColorConfig.GetColorValue(svtools::FONTCOLOR).nColor);

        aRGBBorderColor = aBorderColor.getBColor();
    }

    if(rPage.getPageBorderOnlyLeftRight())
    {
        // #i93597# for Report Designer, the page border shall be only displayed right and left,
        // but not top and bottom. Create simplified geometry.
        basegfx::B2DPolygon aLeft, aRight;

        aLeft.append(basegfx::B2DPoint(aPageBorderRange.getMinX(), aPageBorderRange.getMinY()));
        aLeft.append(basegfx::B2DPoint(aPageBorderRange.getMinX(), aPageBorderRange.getMaxY()));

        aRight.append(basegfx::B2DPoint(aPageBorderRange.getMaxX(), aPageBorderRange.getMinY()));
        aRight.append(basegfx::B2DPoint(aPageBorderRange.getMaxX(), aPageBorderRange.getMaxY()));

        xRetval.realloc(2);
        xRetval[0] = drawinglayer::primitive2d::Primitive2DReference(new drawinglayer::primitive2d::PolygonHairlinePrimitive2D(aLeft, aRGBBorderColor));
        xRetval[1] = drawinglayer::primitive2d::Primitive2DReference(new drawinglayer::primitive2d::PolygonHairlinePrimitive2D(aRight, aRGBBorderColor));
    }
    else
    {
        xRetval.realloc(1);
        const basegfx::B2DPolygon aPageBorderPolygon(basegfx::tools::createPolygonFromRect(aPageBorderRange));
        xRetval[0] = drawinglayer::primitive2d::Primitive2DReference(new drawinglayer::primitive2d::PolygonHairlinePrimitive2D(aPageBorderPolygon, aRGBBorderColor));
    }

    return xRetval;
}

ViewContactOfOuterPageBorder::ViewContactOfOuterPageBorder(ViewContactOfSdrPage& rParentViewContactOfSdrPage)
:   ViewContactOfPageSubObject(rParentViewContactOfSdrPage)
{
}

ViewContactOfOuterPageBorder::~ViewContactOfOuterPageBorder()
{
}

ViewObjectContact& ViewContactOfInnerPageBorder::CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact)
{
    ViewObjectContact* pRetval = new ViewObjectContactOfInnerPageBorder(rObjectContact, *this);
    DBG_ASSERT(pRetval, "ViewContact::CreateObjectSpecificViewObjectContact() failed (!)");

    return *pRetval;
}

drawinglayer::primitive2d::Primitive2DSequence ViewContactOfInnerPageBorder::createViewIndependentPrimitive2DSequence() const
{
    const SdrPage& rPage = getPage();
    const basegfx::B2DRange aPageBorderRange(
        (double)rPage.GetLftBorder(), (double)rPage.GetUppBorder(),
        (double)(rPage.GetWdt() - rPage.GetRgtBorder()), (double)(rPage.GetHgt() - rPage.GetLwrBorder()));
    const basegfx::B2DPolygon aPageBorderPolygon(basegfx::tools::createPolygonFromRect(aPageBorderRange));

    // We have only the page information, not the view information. Use the
    // svtools::FONTCOLOR or svtools::DOCBOUNDARIES color for initialisation
    const svtools::ColorConfig aColorConfig;
    Color aBorderColor;

    if(Application::GetSettings().GetStyleSettings().GetHighContrastMode())
    {
        aBorderColor = aColorConfig.GetColorValue(svtools::FONTCOLOR).nColor;
    }
    else
    {
        aBorderColor = aColorConfig.GetColorValue(svtools::DOCBOUNDARIES).nColor;
    }

    // create page outer border primitive
    const basegfx::BColor aRGBBorderColor(aBorderColor.getBColor());
    const drawinglayer::primitive2d::Primitive2DReference xReference(new drawinglayer::primitive2d::PolygonHairlinePrimitive2D(aPageBorderPolygon, aRGBBorderColor));

    return drawinglayer::primitive2d::Primitive2DSequence(&xReference, 1);
}

ViewContactOfInnerPageBorder::ViewContactOfInnerPageBorder(ViewContactOfSdrPage& rParentViewContactOfSdrPage)
:   ViewContactOfPageSubObject(rParentViewContactOfSdrPage)
{
}

ViewContactOfInnerPageBorder::~ViewContactOfInnerPageBorder()
{
}

ViewObjectContact& ViewContactOfPageHierarchy::CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact)
{
    ViewObjectContact* pRetval = new ViewObjectContactOfPageHierarchy(rObjectContact, *this);
    DBG_ASSERT(pRetval, "ViewContact::CreateObjectSpecificViewObjectContact() failed (!)");

    return *pRetval;
}

drawinglayer::primitive2d::Primitive2DSequence ViewContactOfPageHierarchy::createViewIndependentPrimitive2DSequence() const
{
    // collect sub-hierarchy
    drawinglayer::primitive2d::Primitive2DSequence xRetval;
    const sal_uInt32 nObjectCount(GetObjectCount());

    // collect all sub-primitives
    for(sal_uInt32 a(0); a < nObjectCount; a++)
    {
        const ViewContact& rCandidate(GetViewContact(a));
        const drawinglayer::primitive2d::Primitive2DSequence aCandSeq(rCandidate.getViewIndependentPrimitive2DSequence());

        drawinglayer::primitive2d::appendPrimitive2DSequenceToPrimitive2DSequence(xRetval, aCandSeq);
    }

    return xRetval;
}

ViewContactOfPageHierarchy::ViewContactOfPageHierarchy(ViewContactOfSdrPage& rParentViewContactOfSdrPage)
:   ViewContactOfPageSubObject(rParentViewContactOfSdrPage)
{
}

ViewContactOfPageHierarchy::~ViewContactOfPageHierarchy()
{
}

sal_uInt32 ViewContactOfPageHierarchy::GetObjectCount() const
{
    return getPage().GetObjCount();
}

ViewContact& ViewContactOfPageHierarchy::GetViewContact(sal_uInt32 nIndex) const
{
    SdrObject* pObj = getPage().GetObj(nIndex);
    assert(pObj && "ViewContactOfPageHierarchy::GetViewContact: Corrupt SdrObjList (!)");
    return pObj->GetViewContact();
}

ViewObjectContact& ViewContactOfGrid::CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact)
{
    ViewObjectContact* pRetval = new ViewObjectContactOfPageGrid(rObjectContact, *this);
    DBG_ASSERT(pRetval, "ViewContact::CreateObjectSpecificViewObjectContact() failed (!)");

    return *pRetval;
}

drawinglayer::primitive2d::Primitive2DSequence ViewContactOfGrid::createViewIndependentPrimitive2DSequence() const
{
    // We have only the page information, not the view information and thus no grid settings. Create empty
    // default. For the view-dependent implementation, see ViewObjectContactOfPageGrid::createPrimitive2DSequence
    return drawinglayer::primitive2d::Primitive2DSequence();
}

ViewContactOfGrid::ViewContactOfGrid(ViewContactOfSdrPage& rParentViewContactOfSdrPage, bool bFront)
:   ViewContactOfPageSubObject(rParentViewContactOfSdrPage),
    mbFront(bFront)
{
}

ViewContactOfGrid::~ViewContactOfGrid()
{
}

ViewObjectContact& ViewContactOfHelplines::CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact)
{
    ViewObjectContact* pRetval = new ViewObjectContactOfPageHelplines(rObjectContact, *this);
    DBG_ASSERT(pRetval, "ViewContact::CreateObjectSpecificViewObjectContact() failed (!)");

    return *pRetval;
}

drawinglayer::primitive2d::Primitive2DSequence ViewContactOfHelplines::createViewIndependentPrimitive2DSequence() const
{
    // We have only the page information, not the view information and thus no helplines. Create empty
    // default. For the view-dependent implementation, see ViewObjectContactOfPageHelplines::createPrimitive2DSequence
    return drawinglayer::primitive2d::Primitive2DSequence();
}

ViewContactOfHelplines::ViewContactOfHelplines(ViewContactOfSdrPage& rParentViewContactOfSdrPage, bool bFront)
:   ViewContactOfPageSubObject(rParentViewContactOfSdrPage),
    mbFront(bFront)
{
}

ViewContactOfHelplines::~ViewContactOfHelplines()
{
}

// Create a Object-Specific ViewObjectContact, set ViewContact and
// ObjectContact. Always needs to return something.
ViewObjectContact& ViewContactOfSdrPage::CreateObjectSpecificViewObjectContact(ObjectContact& rObjectContact)
{
    ViewObjectContact* pRetval = new ViewObjectContactOfSdrPage(rObjectContact, *this);
    DBG_ASSERT(pRetval, "ViewContact::CreateObjectSpecificViewObjectContact() failed (!)");

    return *pRetval;
}

ViewContactOfSdrPage::ViewContactOfSdrPage(SdrPage& rPage)
:   ViewContact(),
    mrPage(rPage),
    maViewContactOfPageBackground(*this),
    maViewContactOfPageShadow(*this),
    maViewContactOfPageFill(*this),
    maViewContactOfMasterPage(*this),
    maViewContactOfOuterPageBorder(*this),
    maViewContactOfInnerPageBorder(*this),
    maViewContactOfGridBack(*this, false),
    maViewContactOfHelplinesBack(*this, false),
    maViewContactOfPageHierarchy(*this),
    maViewContactOfGridFront(*this, true),
    maViewContactOfHelplinesFront(*this, true)
{
}

ViewContactOfSdrPage::~ViewContactOfSdrPage()
{
}

// Access to possible sub-hierarchy
sal_uInt32 ViewContactOfSdrPage::GetObjectCount() const
{
    // Fixed count of content. It contains PageBackground (Wiese), PageShadow, PageFill,
    // then - depending on if the page has a MasterPage - either MasterPage Hierarchy
    // or MPBGO. Also OuterPageBorder, InnerPageBorder and two pairs of Grid and Helplines
    // (for front and back) which internally are visible or not depending on the current
    // front/back setting for those.
    return 11;
}

ViewContact& ViewContactOfSdrPage::GetViewContact(sal_uInt32 nIndex) const
{
    switch(nIndex)
    {
        case 0: return (ViewContact&)maViewContactOfPageBackground;
        case 1: return (ViewContact&)maViewContactOfPageShadow;
        case 2: return (ViewContact&)maViewContactOfPageFill;
        case 3:
        {
            const SdrPage& rPage = GetSdrPage();

            if(rPage.TRG_HasMasterPage())
            {
                return rPage.TRG_GetMasterPageDescriptorViewContact();
            }
            else
            {
                return (ViewContact&)maViewContactOfMasterPage;
            }
        }
        case 4: return (ViewContact&)maViewContactOfOuterPageBorder;
        case 5: return (ViewContact&)maViewContactOfInnerPageBorder;
        case 6: return (ViewContact&)maViewContactOfGridBack;
        case 7: return (ViewContact&)maViewContactOfHelplinesBack;
        case 8: return (ViewContact&)maViewContactOfPageHierarchy;
        case 9: return (ViewContact&)maViewContactOfGridFront;
        default: return (ViewContact&)maViewContactOfHelplinesFront;
    }
}

// React on changes of the object of this ViewContact
void ViewContactOfSdrPage::ActionChanged()
{
    // call parent
    ViewContact::ActionChanged();

    // apply to local viewContacts, they all rely on page information. Exception
    // is the sub hierarchy; this will not be influenced by the change
    maViewContactOfPageBackground.ActionChanged();
    maViewContactOfPageShadow.ActionChanged();
    maViewContactOfPageFill.ActionChanged();

    const SdrPage& rPage = GetSdrPage();

    if(rPage.TRG_HasMasterPage())
    {
        rPage.TRG_GetMasterPageDescriptorViewContact().ActionChanged();
    }
    else if(rPage.IsMasterPage())
    {
        maViewContactOfMasterPage.ActionChanged();
    }

    maViewContactOfOuterPageBorder.ActionChanged();
    maViewContactOfInnerPageBorder.ActionChanged();
    maViewContactOfGridBack.ActionChanged();
    maViewContactOfHelplinesBack.ActionChanged();
    maViewContactOfGridFront.ActionChanged();
    maViewContactOfHelplinesFront.ActionChanged();
}

// override for acessing the SdrPage
SdrPage* ViewContactOfSdrPage::TryToGetSdrPage() const
{
    return &GetSdrPage();
}

drawinglayer::primitive2d::Primitive2DSequence ViewContactOfSdrPage::createViewIndependentPrimitive2DSequence() const
{
    drawinglayer::primitive2d::Primitive2DSequence xRetval;

    // collect all sub-sequences including sub hierarchy.
    drawinglayer::primitive2d::appendPrimitive2DSequenceToPrimitive2DSequence(xRetval, maViewContactOfPageBackground.getViewIndependentPrimitive2DSequence());
    drawinglayer::primitive2d::appendPrimitive2DSequenceToPrimitive2DSequence(xRetval, maViewContactOfPageShadow.getViewIndependentPrimitive2DSequence());
    drawinglayer::primitive2d::appendPrimitive2DSequenceToPrimitive2DSequence(xRetval, maViewContactOfPageFill.getViewIndependentPrimitive2DSequence());

    const SdrPage& rPage = GetSdrPage();

    if(rPage.TRG_HasMasterPage())
    {
        drawinglayer::primitive2d::appendPrimitive2DSequenceToPrimitive2DSequence(xRetval,
            rPage.TRG_GetMasterPageDescriptorViewContact().getViewIndependentPrimitive2DSequence());
    }
    else if(rPage.IsMasterPage())
    {
        drawinglayer::primitive2d::appendPrimitive2DSequenceToPrimitive2DSequence(xRetval,
            maViewContactOfMasterPage.getViewIndependentPrimitive2DSequence());
    }

    drawinglayer::primitive2d::appendPrimitive2DSequenceToPrimitive2DSequence(xRetval, maViewContactOfOuterPageBorder.getViewIndependentPrimitive2DSequence());
    drawinglayer::primitive2d::appendPrimitive2DSequenceToPrimitive2DSequence(xRetval, maViewContactOfInnerPageBorder.getViewIndependentPrimitive2DSequence());
    drawinglayer::primitive2d::appendPrimitive2DSequenceToPrimitive2DSequence(xRetval, maViewContactOfPageHierarchy.getViewIndependentPrimitive2DSequence());

    // Only add front versions of grid and helplines since no visibility test is done,
    // so adding the back incarnations is not necessary. This makes the Front
    // visualisation the default when no visibility tests are done.

    // Since we have no view here, no grid and helpline definitions are available currently. The used
    // methods at ViewContactOfHelplines and ViewContactOfGrid return only empty sequences and
    // do not need to be called ATM. This may change later if grid or helpline info gets
    // model data (it should not). Keeping the lines commented to hold this hint.

    // drawinglayer::primitive2d::appendPrimitive2DSequenceToPrimitive2DSequence(xRetval, maViewContactOfGridFront.getViewIndependentPrimitive2DSequence());
    // drawinglayer::primitive2d::appendPrimitive2DSequenceToPrimitive2DSequence(xRetval, maViewContactOfHelplinesFront.getViewIndependentPrimitive2DSequence());

    return xRetval;
}

}}

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