libreoffice/sd/source/ui/slidesorter/controller/SlsDragAndDropContext.cxx

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#include "SlsDragAndDropContext.hxx"

#include "SlideSorter.hxx"
#include "model/SlideSorterModel.hxx"
#include "model/SlsPageEnumerationProvider.hxx"
#include "view/SlideSorterView.hxx"
#include "controller/SlideSorterController.hxx"
#include "controller/SlsInsertionIndicatorHandler.hxx"
#include "controller/SlsScrollBarManager.hxx"
#include "controller/SlsProperties.hxx"
#include "controller/SlsSelectionFunction.hxx"
#include "controller/SlsSelectionManager.hxx"
#include "controller/SlsTransferable.hxx"
#include "DrawDocShell.hxx"
#include "drawdoc.hxx"
#include "app.hrc"
#include <sfx2/bindings.hxx>
#include <boost/bind.hpp>

namespace sd { namespace slidesorter { namespace controller {

DragAndDropContext::DragAndDropContext (SlideSorter& rSlideSorter)
    : mpTargetSlideSorter(&rSlideSorter),
      mnInsertionIndex(-1)
{
    ::std::vector<const SdPage*> aPages;

    // No Drag-and-Drop for master pages.
    if (rSlideSorter.GetModel().GetEditMode() != EM_PAGE)
        return;

    rSlideSorter.GetController().GetInsertionIndicatorHandler()->UpdateIndicatorIcon(
        dynamic_cast<Transferable*>(SD_MOD()->pTransferDrag));
}




DragAndDropContext::~DragAndDropContext (void)
{
    SetTargetSlideSorter (NULL, Point(0,0), InsertionIndicatorHandler::UnknownMode, false);
}




void DragAndDropContext::Dispose (void)
{
    mnInsertionIndex = -1;
}




void DragAndDropContext::UpdatePosition (
    const Point& rMousePosition,
    const InsertionIndicatorHandler::Mode eMode,
    const bool bAllowAutoScroll)
{
    if (mpTargetSlideSorter == NULL)
        return;

    if (mpTargetSlideSorter->GetProperties()->IsUIReadOnly())
        return;

    // Convert window coordinates into model coordinates (we need the
    // window coordinates for auto-scrolling because that remains
    // constant while scrolling.)
    SharedSdWindow pWindow (mpTargetSlideSorter->GetContentWindow());
    const Point aMouseModelPosition (pWindow->PixelToLogic(rMousePosition));
    ::boost::shared_ptr<InsertionIndicatorHandler> pInsertionIndicatorHandler (
        mpTargetSlideSorter->GetController().GetInsertionIndicatorHandler());

    if ( ! (bAllowAutoScroll
            && mpTargetSlideSorter->GetController().GetScrollBarManager().AutoScroll(
                rMousePosition,
                ::boost::bind(
                    &DragAndDropContext::UpdatePosition, this, rMousePosition, eMode, false))))
    {
        pInsertionIndicatorHandler->UpdatePosition(aMouseModelPosition, eMode);

        // Remember the new insertion index.
        mnInsertionIndex = pInsertionIndicatorHandler->GetInsertionPageIndex();
        if (pInsertionIndicatorHandler->IsInsertionTrivial(mnInsertionIndex, eMode))
            mnInsertionIndex = -1;
    }
}




void DragAndDropContext::SetTargetSlideSorter (
    SlideSorter* pSlideSorter,
    const Point aMousePosition,
    const InsertionIndicatorHandler::Mode eMode,
    const bool bIsOverSourceView)
{
    if (mpTargetSlideSorter != NULL)
    {
        mpTargetSlideSorter->GetController().GetScrollBarManager().StopAutoScroll();
        mpTargetSlideSorter->GetController().GetInsertionIndicatorHandler()->End(
            Animator::AM_Animated);
    }

    mpTargetSlideSorter = pSlideSorter;

    if (mpTargetSlideSorter != NULL)
    {
        mpTargetSlideSorter->GetController().GetInsertionIndicatorHandler()->Start(
            bIsOverSourceView);
        mpTargetSlideSorter->GetController().GetInsertionIndicatorHandler()->UpdatePosition(
            aMousePosition,
            eMode);

    }
}


} } } // end of namespace ::sd::slidesorter::controller

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