objectcontact.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#include <svx/sdr/contact/objectcontact.hxx>
#include <tools/debug.hxx>
#include <svx/sdr/contact/viewobjectcontact.hxx>
#include <svx/sdr/contact/viewcontact.hxx>

using namespace com::sun::star;

namespace sdr::contact {

bool ObjectContact::supportsGridOffsets() const
{
    // default does not support GridOffset
    return false;
}

void ObjectContact::calculateGridOffsetForViewOjectContact(
    basegfx::B2DVector& /*rTarget*/,
    const ViewObjectContact& /*rClient*/) const
{
    // default does not on-demand calculate GridOffset
}

void ObjectContact::calculateGridOffsetForB2DRange(
    basegfx::B2DVector& /*rTarget*/,
    const basegfx::B2DRange& /*rB2DRange*/) const
{
    // default does not on-demand calculate GridOffset
}

ObjectContact::ObjectContact()
:   mpViewObjectContactRedirector(nullptr),
    mbIsPreviewRenderer(false)
{
}

ObjectContact::~ObjectContact() COVERITY_NOEXCEPT_FALSE
{
    // get rid of all registered contacts
    // #i84257# To avoid that each 'delete pCandidate' again uses
    // the local RemoveViewObjectContact with a search and removal in the
    // vector, simply copy and clear local vector.
    std::vector< ViewObjectContact* > aLocalVOCList;
    aLocalVOCList.swap(maViewObjectContactVector);

    for (const auto & pCandidate : aLocalVOCList)
        // ViewObjectContacts only make sense with View and Object contacts.
        // When the contact to the SdrObject is deleted like in this case,
        // all ViewObjectContacts can be deleted, too.
        delete pCandidate;

    // assert when there were new entries added during deletion
    DBG_ASSERT(maViewObjectContactVector.empty(), "Corrupted ViewObjectContactList (!)");
}

// LazyInvalidate request. Default implementation directly handles
// this by calling back triggerLazyInvalidate() at the VOC
void ObjectContact::setLazyInvalidate(ViewObjectContact& rVOC)
{
    rVOC.triggerLazyInvalidate();
}

// call this to support evtl. preparations for repaint. Default does nothing
void ObjectContact::PrepareProcessDisplay()
{
}

// A new ViewObjectContact was created and shall be remembered.
void ObjectContact::AddViewObjectContact(ViewObjectContact& rVOContact)
{
    maViewObjectContactVector.push_back(&rVOContact);
}

// A ViewObjectContact was deleted and shall be forgotten.
void ObjectContact::RemoveViewObjectContact(ViewObjectContact& rVOContact)
{
    std::vector< ViewObjectContact* >::iterator aFindResult = std::find(maViewObjectContactVector.begin(), maViewObjectContactVector.end(), &rVOContact);

    if(aFindResult != maViewObjectContactVector.end())
    {
        maViewObjectContactVector.erase(aFindResult);
    }
}

// Process the whole displaying
void ObjectContact::ProcessDisplay(DisplayInfo& /*rDisplayInfo*/)
{
    // default does nothing
}

// test if visualizing of entered groups is switched on at all
bool ObjectContact::DoVisualizeEnteredGroup() const
{
    // Do not do that as default
    return false;
}

// get active group's (the entered group) ViewContact
const ViewContact* ObjectContact::getActiveViewContact() const
{
    // default has no active VC
    return nullptr;
}

// Invalidate given rectangle at the window/output which is represented by
// this ObjectContact.
void ObjectContact::InvalidatePartOfView(const basegfx::B2DRange& /*rRange*/) const
{
    // nothing to do here in the default version
}

// Get info about the need to visualize GluePoints
bool ObjectContact::AreGluePointsVisible() const
{
    return false;
}

// check if text animation is allowed. Default is sal_true.
bool ObjectContact::IsTextAnimationAllowed() const
{
    return true;
}

// check if graphic animation is allowed. Default is sal_true.
bool ObjectContact::IsGraphicAnimationAllowed() const
{
    return true;
}

void ObjectContact::SetViewObjectContactRedirector(ViewObjectContactRedirector* pNew)
{
    if(mpViewObjectContactRedirector != pNew)
    {
        mpViewObjectContactRedirector = pNew;
    }
}

// print? Default is false
bool ObjectContact::isOutputToPrinter() const
{
    return false;
}

// recording MetaFile? Default is false
bool ObjectContact::isOutputToRecordingMetaFile() const
{
    return false;
}

// pdf export? Default is false
bool ObjectContact::isOutputToPDFFile() const
{
    return false;
}

// gray display mode
bool ObjectContact::isDrawModeGray() const
{
    return false;
}

// high contrast display mode
bool ObjectContact::isDrawModeHighContrast() const
{
    return false;
}

// access to SdrPageView. Default implementation returns NULL
SdrPageView* ObjectContact::TryToGetSdrPageView() const
{
    return nullptr;
}

// access to OutputDevice. Default implementation returns NULL
OutputDevice* ObjectContact::TryToGetOutputDevice() const
{
    return nullptr;
}

void ObjectContact::resetAllGridOffsets()
{
    const sal_uInt32 nVOCCount(getViewObjectContactCount());

    for(sal_uInt32 a(0); a < nVOCCount; a++)
    {
        ViewObjectContact* pVOC(getViewObjectContact(a));
        assert(pVOC && "ObjectContact: ViewObjectContact list Corrupt (!)");
        pVOC->resetGridOffset();
    }
}

}

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