/* -*- 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 <svx/svdpagv.hxx>

#include <svx/svxids.hrc>

#include <editeng/sizeitem.hxx>

#include <sfx2/bindings.hxx>

#include <svl/ptitem.hxx>

#include <osl/diagnose.h>

#include <vcl/ptrstyle.hxx>

#include <tabvwsh.hxx>

#include <gridwin.hxx>

#include <dbfunc.hxx>

#include <viewdata.hxx>

#include <output.hxx>

#include <drawview.hxx>

#include <fupoor.hxx>

#include <fusel.hxx>

#include <scmod.hxx>

#include <appoptio.hxx>

#include <drawutil.hxx>

#include <document.hxx>

#include <comphelper/lok.hxx>

static bool lcl_HasSelectionChanged(const SdrMarkList & rBeforeList, const SdrMarkList & rAfterList)

{

    if (rBeforeList.GetMarkCount() != rAfterList.GetMarkCount())

        return true;

    for (size_t nObject = 0; nObject < rBeforeList.GetMarkCount(); ++nObject)

    {

        if (rBeforeList.GetMark(nObject)->GetMarkedSdrObj() !=

            rAfterList.GetMark(nObject)->GetMarkedSdrObj())

            return true;

    }

    return false;

}

bool ScGridWindow::DrawMouseButtonDown(const MouseEvent& rMEvt)

{

    // Keep track of the mouse position when the left button was pressed so we can detect if it was

    // moved on mouse up

    if (rMEvt.IsLeft())

        aDrawMouseDownPos = rMEvt.GetPosPixel();

    bool bRet = false;

    FuPoor* pDraw = mrViewData.GetView()->GetDrawFuncPtr();

    if (pDraw)

        pDraw->ResetSelectionHasChanged();

    ScDrawView* pDrView = mrViewData.GetScDrawView();

    if (pDraw && !mrViewData.IsRefMode())

    {

        MapMode aDrawMode = GetDrawMapMode();

        MapMode aOldMode = GetMapMode();

        if ( comphelper::LibreOfficeKit::isActive() && aOldMode != aDrawMode )

            SetMapMode( aDrawMode );

        pDraw->SetWindow( this );

        Point aLogicPos = PixelToLogic(rMEvt.GetPosPixel());

        if ( pDraw->IsDetectiveHit( aLogicPos ) )

        {

            // nothing on detective arrows (double click is evaluated on ButtonUp)

            bRet = true;

        }

        else

        {

            SdrMarkList aPreMarkList = pDrView->GetMarkedObjectList();

            bRet = pDraw->MouseButtonDown( rMEvt );

            if (bRet)

            {

                if (lcl_HasSelectionChanged(aPreMarkList, pDrView->GetMarkedObjectList()))

                    pDraw->SetSelectionHasChanged();

                UpdateStatusPosSize();

            }

        }

        if ( comphelper::LibreOfficeKit::isActive() && aOldMode != aDrawMode )

            SetMapMode( aOldMode );

    }

    // cancel draw with right key

    if ( pDrView && !rMEvt.IsLeft() && !bRet )

    {

        pDrView->BrkAction();

        bRet = true;

    }

    return bRet;

}

namespace

{

bool lcl_MouseUnmoved(ScDrawView* pDrView, const MouseEvent& rMEvt, const Point& aDownPos)

{

    sal_Int32 nThreshold = pDrView->GetDragThresholdPixels();

    const Point& aMousePos = rMEvt.GetPosPixel();

    return std::abs(aMousePos.getX() - aDownPos.getX()) < nThreshold &&

        std::abs(aMousePos.getY() - aDownPos.getY()) < nThreshold;

}

}

bool ScGridWindow::DrawMouseButtonUp(const MouseEvent& rMEvt)

{

    ScViewFunc* pView = mrViewData.GetView();

    bool bRet = false;

    bool bLOKitActive = comphelper::LibreOfficeKit::isActive();

    FuPoor* pDraw = pView->GetDrawFuncPtr();

    if (pDraw && !mrViewData.IsRefMode())

    {

        MapMode aDrawMode = GetDrawMapMode();

        MapMode aOldMode = GetMapMode();

        if ( bLOKitActive && aOldMode != aDrawMode )

            SetMapMode( aDrawMode );

        pDraw->SetWindow( this );

        bRet = pDraw->MouseButtonUp( rMEvt );

        // execute "format paint brush" for drawing objects

        SfxItemSet* pDrawBrush = pView->GetDrawBrushSet();

        ScDrawView* pDrView = mrViewData.GetScDrawView();

        if ( pDrawBrush )

        {

            if ( pDrView )

            {

                pDrView->SetAttrToMarked(*pDrawBrush, true/*bReplaceAll*/);

            }

            if ( !pView->IsPaintBrushLocked() )

                pView->ResetBrushDocument(); // end paint brush mode if not locked

        }

        else if (!bLOKitActive && pDrView->GetMarkedObjectList().GetMarkCount() > 0

                 && rMEvt.IsLeft()

                 && rMEvt.GetClicks() == 1

            && ScModule::get()->GetAppOptions().IsClickChangeRotation()

            && !pDraw->HasSelectionChanged()

            && dynamic_cast<FuSelection*>(pDraw)

            && lcl_MouseUnmoved(pDrView, rMEvt, aDrawMouseDownPos))

        {

            mrViewData.GetView()->SwitchRotateMode();

        }

        if ( bLOKitActive && aOldMode != aDrawMode )

            SetMapMode( aOldMode );

    }

    return bRet;

}

bool ScGridWindow::DrawMouseMove(const MouseEvent& rMEvt)

{

    FuPoor* pDraw = mrViewData.GetView()->GetDrawFuncPtr();

    if (pDraw && !mrViewData.IsRefMode())

    {

        MapMode aDrawMode = GetDrawMapMode();

        MapMode aOldMode = GetMapMode();

        if ( comphelper::LibreOfficeKit::isActive() && aOldMode != aDrawMode )

            SetMapMode( aDrawMode );

        pDraw->SetWindow( this );

        bool bRet = pDraw->MouseMove( rMEvt );

        if ( bRet )

            UpdateStatusPosSize();

        if ( comphelper::LibreOfficeKit::isActive() && aOldMode != aDrawMode )

            SetMapMode( aOldMode );

        return bRet;

    }

    else

    {

        SetPointer( PointerStyle::Arrow );

        return false;

    }

}

void ScGridWindow::DrawEndAction()

{

    ScDrawView* pDrView = mrViewData.GetScDrawView();

    if ( pDrView && pDrView->IsAction() )

        pDrView->BrkAction();

    FuPoor* pDraw = mrViewData.GetView()->GetDrawFuncPtr();

    if (pDraw)

        pDraw->StopDragTimer();

    //  ReleaseMouse on call

}

bool ScGridWindow::DrawCommand(const CommandEvent& rCEvt)

{

    ScDrawView* pDrView = mrViewData.GetScDrawView();

    FuPoor* pDraw = mrViewData.GetView()->GetDrawFuncPtr();

    if (pDrView && pDraw && !mrViewData.IsRefMode())

    {

        pDraw->SetWindow( this );

        sal_uInt8 nUsed = pDraw->Command( rCEvt );

        if( nUsed == SC_CMD_USED )

            nButtonDown = 0;  // MouseButtonUp is swallowed...

        if( nUsed || pDrView->IsAction() )

            return true;

    }

    return false;

}

bool ScGridWindow::DrawKeyInput(const KeyEvent& rKEvt, vcl::Window* pWin)

{

    ScDrawView* pDrView = mrViewData.GetScDrawView();

    FuPoor* pDraw = mrViewData.GetView()->GetDrawFuncPtr();

    if (pDrView && pDrView->KeyInput(rKEvt, pWin))

        return true;

    if (pDrView && pDraw && !mrViewData.IsRefMode())

    {

        pDraw->SetWindow( this );

        const SdrMarkList& rMarkList = pDrView->GetMarkedObjectList();

        bool bOldMarked = rMarkList.GetMarkCount() != 0;

        if (pDraw->KeyInput( rKEvt ))

        {

            bool bLeaveDraw = false;

            bool bUsed = true;

            bool bNewMarked = rMarkList.GetMarkCount() != 0;

            if ( !mrViewData.GetView()->IsDrawSelMode() )

                if ( !bNewMarked )

                {

                    mrViewData.GetViewShell()->SetDrawShell( false );

                    bLeaveDraw = true;

                    if ( !bOldMarked &&

                        rKEvt.GetKeyCode().GetCode() == KEY_DELETE )

                        bUsed = false; // nothing deleted

                    if(bOldMarked)

                        GetFocus();

                }

            if (!bLeaveDraw)

                UpdateStatusPosSize(); // for moving/resizing etc. by keyboard

            return bUsed;

        }

    }

    return false;

}

void ScGridWindow::DrawRedraw( ScOutputData& rOutputData, SdrLayerID nLayer )

{

    const ScViewOptions& rOpts = mrViewData.GetOptions();

    // use new flags at SdrPaintView for hiding objects

    const bool bDrawOle(VOBJ_MODE_SHOW == rOpts.GetObjMode(sc::ViewObjectType::OLE));

    const bool bDrawChart(VOBJ_MODE_SHOW == rOpts.GetObjMode(sc::ViewObjectType::CHART));

    const bool bDrawDraw(VOBJ_MODE_SHOW == rOpts.GetObjMode(sc::ViewObjectType::DRAW));

    if(!(bDrawOle || bDrawChart || bDrawDraw))

        return;

    ScDrawView* pDrView = mrViewData.GetView()->GetScDrawView();

    if(pDrView)

    {

        pDrView->setHideOle(!bDrawOle);

        pDrView->setHideChart(!bDrawChart);

        pDrView->setHideDraw(!bDrawDraw);

        pDrView->setHideFormControl(!bDrawDraw);

    }

    rOutputData.DrawSelectiveObjects(nLayer);

}

void ScGridWindow::DrawSdrGrid( const tools::Rectangle& rDrawingRect, OutputDevice* pContentDev )

{

    // Draw grid lines

    ScDrawView* pDrView = mrViewData.GetView()->GetScDrawView();

    if ( pDrView && pDrView->IsGridVisible() )

    {

        SdrPageView* pPV = pDrView->GetSdrPageView();

        OSL_ENSURE(pPV, "PageView not available");

        if (pPV)

        {

            pContentDev->SetLineColor(COL_GRAY);

            pPV->DrawPageViewGrid( *pContentDev, rDrawingRect );

        }

    }

}

MapMode ScGridWindow::GetDrawMapMode( bool bForce )

{

    ScDocument& rDoc = mrViewData.GetDocument();

    // FIXME this shouldn't be necessary once we change the entire Calc to

    // work in the logic coordinates (ideally 100ths of mm - so that it is

    // the same as editeng and drawinglayer), and get rid of all the

    // SetMapMode's and other unnecessary fun we have with pixels

    if (comphelper::LibreOfficeKit::isActive())

    {

        return mrViewData.GetLogicMode();

    }

    SCTAB nTab = mrViewData.CurrentTabForData();

    bool bNegativePage = rDoc.IsNegativePage( nTab );

    MapMode aDrawMode = mrViewData.GetLogicMode();

    ScDrawView* pDrView = mrViewData.GetView()->GetScDrawView();

    if ( pDrView || bForce )

    {

        double fScaleX;

        double fScaleY;

        if (pDrView)

            pDrView->GetScale( fScaleX, fScaleY );

        else

        {

            SCCOL nEndCol = 0;

            SCROW nEndRow = 0;

            rDoc.GetTableArea( nTab, nEndCol, nEndRow );

            if (nEndCol<20) nEndCol = 20;

            if (nEndRow<20) nEndRow = 1000;

            ScDrawUtil::CalcScale( rDoc, nTab, 0,0, nEndCol,nEndRow, GetOutDev(),

                                   mrViewData.GetZoomX(),mrViewData.GetZoomY(),

                                   mrViewData.GetPPTX(),mrViewData.GetPPTY(),

                                   fScaleX,fScaleY );

        }

        aDrawMode.SetScaleX(fScaleX);

        aDrawMode.SetScaleY(fScaleY);

    }

    aDrawMode.SetOrigin(Point());

    Point aStartPos = mrViewData.GetPixPos(eWhich);

    if ( bNegativePage )

    {

        //  RTL uses negative positions for drawing objects

        aStartPos.setX( -aStartPos.X() + GetOutputSizePixel().Width() - 1 );

    }

    aDrawMode.SetOrigin( PixelToLogic( aStartPos, aDrawMode ) );

    return aDrawMode;

}

void ScGridWindow::DrawAfterScroll()

{

    PaintImmediately(); // always, so the behaviour with and without DrawingLayer is the same

    ScDrawView* pDrView = mrViewData.GetView()->GetScDrawView();

    if (pDrView)

    {

        OutlinerView* pOlView = pDrView->GetTextEditOutlinerView();

        if (pOlView && pOlView->GetWindow() == this)

            pOlView->ShowCursor(false); // was removed at scrolling

    }

}

void ScGridWindow::CreateAnchorHandle(SdrHdlList& rHdl, const ScAddress& rAddress)

{

    ScDrawView* pDrView = mrViewData.GetView()->GetScDrawView();

    if (pDrView)

    {

        const ScViewOptions& rOpts = mrViewData.GetOptions();

        if(rOpts.GetOption(sc::ViewOption::ANCHOR))

        {

            bool bNegativePage = mrViewData.GetDocument().IsNegativePage( mrViewData.CurrentTabForData() );

            Point aPos = mrViewData.GetScrPos( rAddress.Col(), rAddress.Row(), eWhich, true );

            aPos = PixelToLogic(aPos);

            rHdl.AddHdl(std::make_unique<SdrHdl>(aPos, bNegativePage ? SdrHdlKind::Anchor_TR : SdrHdlKind::Anchor));

        }

    }

}

void ScGridWindow::UpdateStatusPosSize()

{

    ScDrawView* pDrView = mrViewData.GetView()->GetScDrawView();

    if (!pDrView)

        return; // shouldn't be called in that case

    SdrPageView* pPV = pDrView->GetSdrPageView();

    if (!pPV)

        return; // shouldn't be called in that case either

    SfxItemSet aSet(SfxItemSet::makeFixedSfxItemSet<SID_ATTR_POSITION, SID_ATTR_SIZE>(mrViewData.GetViewShell()->GetPool()));

    //  Fill items for position and size:

    //  show action rectangle during action,

    //  position and size of selected object(s) if something is selected,

    //  mouse position otherwise

    bool bActionItem = false;

    if ( pDrView->IsAction() ) // action rectangle

    {

        tools::Rectangle aRect;

        pDrView->TakeActionRect( aRect );

        if ( !aRect.IsEmpty() )

        {

            pPV->LogicToPagePos(aRect);

            aSet.Put( SfxPointItem( SID_ATTR_POSITION, aRect.TopLeft() ) );

            aSet.Put( SvxSizeItem( SID_ATTR_SIZE,

                    Size( aRect.Right() - aRect.Left(), aRect.Bottom() - aRect.Top() ) ) );

            bActionItem = true;

        }

    }

    if ( !bActionItem )

    {

        const SdrMarkList& rMarkList = pDrView->GetMarkedObjectList();

        if ( rMarkList.GetMarkCount() != 0 ) // selected objects

        {

            tools::Rectangle aRect = pDrView->GetAllMarkedRect();

            pPV->LogicToPagePos(aRect);

            aSet.Put( SfxPointItem( SID_ATTR_POSITION, aRect.TopLeft() ) );

            aSet.Put( SvxSizeItem( SID_ATTR_SIZE,

                    Size( aRect.Right() - aRect.Left(), aRect.Bottom() - aRect.Top() ) ) );

        }

        else // mouse position

        {

            Point aPos = PixelToLogic(aCurMousePos);

            pPV->LogicToPagePos(aPos);

            aSet.Put( SfxPointItem( SID_ATTR_POSITION, aPos ) );

            aSet.Put( SvxSizeItem( SID_ATTR_SIZE, Size( 0, 0 ) ) );

        }

    }

    mrViewData.GetBindings().SetState(aSet);

}

bool ScGridWindow::DrawHasMarkedObj()

{

    ScDrawView* p = mrViewData.GetScDrawView();

    return p && p->GetMarkedObjectList().GetMarkCount() != 0;

}

void ScGridWindow::DrawMarkDropObj( SdrObject* pObj )

{

    ScDrawView* pDrView = mrViewData.GetView()->GetScDrawView();

    if (pDrView)

        pDrView->MarkDropObj(pObj);

}

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