Calc: implemented parallel cell text editing

Change-Id: If8cc7a637cee6ba66813d55b25160fee13a2a219
Reviewed-on: https://gerrit.libreoffice.org/29410
Reviewed-by: Marco Cecchetti <mrcekets@gmail.com>
Tested-by: Marco Cecchetti <mrcekets@gmail.com>

5 files changed, 319 insertions, 1 deletions

diff --git a/sc/source/ui/inc/tabview.hxx b/sc/source/ui/inc/tabview.hxx
index 34793bf24b1e..4cd3d79fe19d 100644
--- a/sc/source/ui/inc/tabview.hxx
+++ b/sc/source/ui/inc/tabview.hxx
@@ -449,6 +449,9 @@ public:
 
     void            InvalidateAttribs();
 
+    void            OnLibreOfficeKitTabChanged();
+    void            AddEditViewToOtherView(SfxViewShell* pViewShell, ScSplitPos eWhich);
+    void            RemoveEditViewFromOtherView(SfxViewShell* pViewShell, ScSplitPos eWhich);
     void            MakeEditView( ScEditEngineDefaulter* pEngine, SCCOL nCol, SCROW nRow );
     void            KillEditView( bool bNoPaint );
     void            UpdateEditView();
diff --git a/sc/source/ui/view/gridwin4.cxx b/sc/source/ui/view/gridwin4.cxx
index b650fc4a293e..a52fc5bda7c8 100644
--- a/sc/source/ui/view/gridwin4.cxx
+++ b/sc/source/ui/view/gridwin4.cxx
@@ -967,6 +967,92 @@ void ScGridWindow::DrawContent(OutputDevice &rDevice, const ScTableInfo& rTableI
             pCrsr->Show();
     }
 
+
+    if (comphelper::LibreOfficeKit::isActive())
+    {
+        ScTabViewShell* pThisViewShell = pViewData->GetViewShell();
+        SfxViewShell* pViewShell = SfxViewShell::GetFirst();
+
+        while (pViewShell)
+        {
+            if (pViewShell != pThisViewShell)
+            {
+                ScTabViewShell* pTabViewShell = dynamic_cast<ScTabViewShell*>(pViewShell);
+                if (pTabViewShell)
+                {
+                    ScViewData& rOtherViewData = pTabViewShell->GetViewData();
+                    ScSplitPos eOtherWhich = rOtherViewData.GetEditActivePart();
+
+                    bool bOtherEditMode = rOtherViewData.HasEditView(eOtherWhich);
+                    SCCOL nCol1 = rOtherViewData.GetEditStartCol();
+                    SCROW nRow1 = rOtherViewData.GetEditStartRow();
+                    SCCOL nCol2 = rOtherViewData.GetEditEndCol();
+                    SCROW nRow2 = rOtherViewData.GetEditEndRow();
+                    bOtherEditMode = bOtherEditMode
+                            && ( nCol2 >= nX1 && nCol1 <= nX2 && nRow2 >= nY1 && nRow1 <= nY2 );
+                    if (bOtherEditMode && rOtherViewData.GetRefTabNo() == nTab)
+                    {
+                        EditView* pOtherEditView = rOtherViewData.GetEditView(eOtherWhich);
+                        Point aOtherScrPos = rOtherViewData.GetScrPos( nX1, nY1, eOtherWhich );
+                        if ( bLayoutRTL )
+                        {
+                            long nEndPixel = pViewData->GetScrPos( nX2+1, maVisibleRange.mnRow1, eWhich ).X();
+                            aOtherScrPos.X() = nEndPixel + 1;
+                        }
+
+                        long nScreenX = aOutputData.nScrX;
+                        long nScreenY = aOutputData.nScrY;
+                        long nScreenW = aOutputData.GetScrW();
+                        long nScreenH = aOutputData.GetScrH();
+
+                        rDevice.SetLineColor();
+                        rDevice.SetFillColor(pEditView->GetBackgroundColor());
+                        Point aStart = rOtherViewData.GetScrPos( nCol1, nRow1, eOtherWhich );
+                        Point aEnd = rOtherViewData.GetScrPos( nCol2+1, nRow2+1, eOtherWhich );
+
+                        // don't overwrite grid
+                        long nLayoutSign = bLayoutRTL ? -1 : 1;
+                        aEnd.X() -= 2 * nLayoutSign;
+                        aEnd.Y() -= 2;
+
+                        Rectangle aBackground(aStart, aEnd);
+
+                        aBackground += Point(nScreenX, nScreenY);
+                        rDevice.SetMapMode(aDrawMode);
+
+
+                        // paint the background
+                        rDevice.DrawRect(rDevice.PixelToLogic(aBackground));
+
+                        if (bIsTiledRendering)
+                        {
+                            auto aOrigin = aOriginalMode.GetOrigin();
+                            aOrigin.setX(aOrigin.getX() / TWIPS_PER_PIXEL + nScrX);
+                            aOrigin.setY(aOrigin.getY() / TWIPS_PER_PIXEL + nScrY);
+                            static const double twipFactor = 15 * 1.76388889; // 26.45833335
+                            aOrigin = Point(aOrigin.getX() * twipFactor,
+                                            aOrigin.getY() * twipFactor);
+                            MapMode aNew = rDevice.GetMapMode();
+                            aNew.SetOrigin(aOrigin);
+                            rDevice.SetMapMode(aNew);
+                        }
+
+                        pOtherEditView->Paint(rDevice.PixelToLogic(Rectangle(Point(nScreenX, nScreenY), Size(nScreenW, nScreenH))), &rDevice);
+                        rDevice.SetMapMode(MAP_PIXEL);
+                    }
+
+                 }
+            }
+
+            pViewShell = SfxViewShell::GetNext(*pViewShell);
+        }
+
+    }
+
+
+
+
+
     if (pViewData->HasEditView(eWhich))
     {
         // flush OverlayManager before changing the MapMode
diff --git a/sc/source/ui/view/tabview3.cxx b/sc/source/ui/view/tabview3.cxx
index b3a2219642ba..0aaaa6dec6fb 100644
--- a/sc/source/ui/view/tabview3.cxx
+++ b/sc/source/ui/view/tabview3.cxx
@@ -27,6 +27,7 @@
 #include <svx/sdr/overlay/overlaymanager.hxx>
 #include <svx/svdoole2.hxx>
 #include <sfx2/bindings.hxx>
+#include <sfx2/lokhelper.hxx>
 #include <sfx2/viewfrm.hxx>
 #include <vcl/cursor.hxx>
 
@@ -1888,6 +1889,175 @@ void ScTabView::SetTabNo( SCTAB nTab, bool bNew, bool bExtendSelection, bool bSa
                 pRefDlg->ViewShellChanged();
             }
         }
+
+        OnLibreOfficeKitTabChanged();
+    }
+}
+
+class ExtraEditViewManager
+{
+public:
+    ExtraEditViewManager(ScTabViewShell* pThisViewShell, VclPtr<ScGridWindow>* pGridWin)
+        : mpThisViewShell(pThisViewShell)
+        , mpGridWin(pGridWin)
+        , mpOtherEditView(nullptr)
+        , mpOtherEngine(nullptr)
+        , mpEditViews(nullptr)
+        , maSameEditViewChecker()
+    {}
+
+    void Add(SfxViewShell* pViewShell, ScSplitPos eWhich)
+    {
+        Apply(pViewShell, eWhich, &ExtraEditViewManager::Adder);
+    }
+
+    void Remove(SfxViewShell* pViewShell, ScSplitPos eWhich)
+    {
+        Apply(pViewShell, eWhich, &ExtraEditViewManager::Remover);
+    }
+
+private:
+    class SameEditViewChecker
+    {
+    public:
+        SameEditViewChecker()
+            : mpOtherEditView(nullptr)
+            , mpWindow(nullptr)
+        {}
+        void SetEditView(EditView* pOtherEditView) { mpOtherEditView = pOtherEditView; }
+        void SetWindow(ScGridWindow* pWindow) { mpWindow = pWindow; }
+        bool operator() (EditView* pView)
+        {
+            return ( pView != nullptr
+                  && pView->GetWindow() == mpWindow
+                  && pView->GetEditEngine() == mpOtherEditView->GetEditEngine()
+                  && pView->GetOutputArea() == mpOtherEditView->GetOutputArea()
+                  && pView->GetVisArea() == mpOtherEditView->GetVisArea() );
+        }
+
+    private:
+        EditView* mpOtherEditView;
+        ScGridWindow* mpWindow;
+    };
+
+private:
+    typedef void (ExtraEditViewManager::* FuncType)(ScGridWindow* );
+
+    void Apply(SfxViewShell* pViewShell, ScSplitPos eWhich, FuncType fHandler)
+    {
+        ScTabViewShell* pOtherViewShell = dynamic_cast<ScTabViewShell*>(pViewShell);
+        if (pOtherViewShell != nullptr && pOtherViewShell != mpThisViewShell)
+        {
+            mpOtherEditView = pOtherViewShell->GetViewData().GetEditView(eWhich);
+            if (mpOtherEditView != nullptr)
+            {
+                mpOtherEngine = mpOtherEditView->GetEditEngine();
+                if (mpOtherEngine != nullptr)
+                {
+                    mpEditViews = &(mpOtherEngine->GetEditViews());
+                    maSameEditViewChecker.SetEditView(mpOtherEditView);
+                    for (int i = 0; i < 4; ++i)
+                    {
+                        (this->*fHandler)(mpGridWin[i]);
+                    }
+                }
+            }
+        }
+    }
+
+    void Adder(ScGridWindow* pWin)
+    {
+        if (pWin != nullptr)
+        {
+            maSameEditViewChecker.SetWindow(pWin);
+            auto found = std::find_if(mpEditViews->begin(), mpEditViews->end(), maSameEditViewChecker);
+            if (found == mpEditViews->end())
+            {
+                EditView* pThisEditView = new EditView( mpOtherEngine, pWin );
+                if (pThisEditView != nullptr)
+                {
+                    pThisEditView->SetOutputArea(mpOtherEditView->GetOutputArea());
+                    pThisEditView->SetVisArea(mpOtherEditView->GetVisArea());
+                    mpOtherEngine->InsertView(pThisEditView);
+                }
+            }
+        }
+    }
+
+    void Remover(ScGridWindow* pWin)
+    {
+        if (pWin != nullptr)
+        {
+            maSameEditViewChecker.SetWindow(pWin);
+            auto found = std::find_if(mpEditViews->begin(), mpEditViews->end(), maSameEditViewChecker);
+            if (found != mpEditViews->end())
+            {
+                EditView* pView = *found;
+                if (pView)
+                {
+                    mpOtherEngine->RemoveView(pView);
+                    delete pView;
+                    pView = nullptr;
+                }
+            }
+        }
+    }
+
+private:
+    ScTabViewShell* mpThisViewShell;
+    VclPtr<ScGridWindow>* mpGridWin;
+    EditView* mpOtherEditView;
+    EditEngine* mpOtherEngine;
+    EditEngine::ViewsType* mpEditViews;
+    SameEditViewChecker maSameEditViewChecker;
+};
+
+void ScTabView::AddEditViewToOtherView(SfxViewShell* pViewShell, ScSplitPos eWhich)
+{
+    ExtraEditViewManager aExtraEditViewManager(aViewData.GetViewShell(), pGridWin);
+    aExtraEditViewManager.Add(pViewShell, eWhich);
+}
+
+void ScTabView::RemoveEditViewFromOtherView(SfxViewShell* pViewShell, ScSplitPos eWhich)
+{
+    ExtraEditViewManager aExtraEditViewManager(aViewData.GetViewShell(), pGridWin);
+    aExtraEditViewManager.Remove(pViewShell, eWhich);
+}
+
+void ScTabView::OnLibreOfficeKitTabChanged()
+{
+    if (comphelper::LibreOfficeKit::isActive())
+    {
+        ScTabViewShell* pThisViewShell = aViewData.GetViewShell();
+        SCTAB nThisTabNo = pThisViewShell->GetViewData().GetTabNo();
+        auto lTabSwitch =
+                [pThisViewShell, nThisTabNo] (ScTabViewShell* pOtherViewShell)
+                {
+                    ScViewData& rOtherViewData = pOtherViewShell->GetViewData();
+                    SCTAB nOtherTabNo = rOtherViewData.GetTabNo();
+                    if (nThisTabNo == nOtherTabNo)
+                    {
+                        for (int i = 0; i < 4; ++i)
+                        {
+                            if (rOtherViewData.HasEditView( (ScSplitPos)(i)))
+                            {
+                                pThisViewShell->AddEditViewToOtherView(pOtherViewShell, (ScSplitPos)(i));
+                            }
+                        }
+                    }
+                    else
+                    {
+                        for (int i = 0; i < 4; ++i)
+                        {
+                            if (rOtherViewData.HasEditView( (ScSplitPos)(i)))
+                            {
+                                pThisViewShell->RemoveEditViewFromOtherView(pOtherViewShell, (ScSplitPos)(i));
+                            }
+                        }
+                    }
+                };
+
+        SfxLokHelper::forEachOtherView(pThisViewShell, lTabSwitch);
     }
 }
 
diff --git a/sc/source/ui/view/tabview5.cxx b/sc/source/ui/view/tabview5.cxx
index a9d3dcab6707..10a39b3a2555 100644
--- a/sc/source/ui/view/tabview5.cxx
+++ b/sc/source/ui/view/tabview5.cxx
@@ -25,6 +25,7 @@
 #include <svx/svdoutl.hxx>
 #include <sfx2/bindings.hxx>
 #include <sfx2/dispatch.hxx>
+#include <sfx2/lokhelper.hxx>
 #include <sfx2/objsh.hxx>
 
 #include "tabview.hxx"
@@ -54,7 +55,6 @@
 #include <officecfg/Office/Calc.hxx>
 #include <LibreOfficeKit/LibreOfficeKitEnums.h>
 
-
 using namespace com::sun::star;
 
 void ScTabView::Init()
@@ -159,6 +159,24 @@ ScTabView::~ScTabView()
     DELETEZ(pDrawOld);
     DELETEZ(pDrawActual);
 
+    if (comphelper::LibreOfficeKit::isActive())
+    {
+        ScTabViewShell* pThisViewShell = GetViewData().GetViewShell();
+
+        auto lRemoveEditView =
+                [pThisViewShell] (ScTabViewShell* pOtherViewShell)
+                {
+                    ScViewData& rOtherViewData = pOtherViewShell->GetViewData();
+                    for (int k = 0; k < 4; ++k)
+                    {
+                        if (rOtherViewData.HasEditView((ScSplitPos)(k)))
+                            pThisViewShell->RemoveEditViewFromOtherView(pOtherViewShell, (ScSplitPos)(k));
+                    }
+                };
+
+        SfxLokHelper::forEachOtherView(pThisViewShell, lRemoveEditView);
+    }
+
     aViewData.KillEditView();           // solange GridWin's noch existieren
 
     if (pDrawView)
diff --git a/sc/source/ui/view/viewdata.cxx b/sc/source/ui/view/viewdata.cxx
index 240661d11c18..77d9f42df304 100644
--- a/sc/source/ui/view/viewdata.cxx
+++ b/sc/source/ui/view/viewdata.cxx
@@ -20,6 +20,7 @@
 #include "scitems.hxx"
 #include <editeng/eeitem.hxx>
 
+#include <sfx2/lokhelper.hxx>
 #include <sfx2/viewfrm.hxx>
 #include <editeng/adjustitem.hxx>
 #include <svx/algitem.hxx>
@@ -76,6 +77,22 @@ using namespace com::sun::star;
 static bool bMoveArea = false;                  // Member?
 sal_uInt16 nEditAdjust = SVX_ADJUST_LEFT;       // Member!
 
+namespace {
+
+void lcl_LOKRemoveEditView(ScTabViewShell* pTabViewShell, ScSplitPos eWhich)
+{
+    if (comphelper::LibreOfficeKit::isActive())
+    {
+        auto lRemoveEditView =
+                [pTabViewShell, eWhich] (ScTabViewShell* pOtherViewShell)
+                { pOtherViewShell->RemoveEditViewFromOtherView(pTabViewShell, eWhich); };
+
+        SfxLokHelper::forEachOtherView(pTabViewShell, lRemoveEditView);
+    }
+}
+
+} // anonymous namespace
+
 ScViewDataTable::ScViewDataTable() :
                 eZoomType( SvxZoomType::PERCENT ),
                 aZoomX( 1,1 ),
@@ -958,12 +975,18 @@ void ScViewData::SetEditEngine( ScSplitPos eWhich,
     {
         //  if the view is already there don't call anything that changes the cursor position
         if (bEditActive[eWhich])
+        {
             bWasThere = true;
+        }
         else
+        {
+            lcl_LOKRemoveEditView(GetViewShell(), eWhich);
             pEditView[eWhich]->SetEditEngine(pNewEngine);
+        }
 
         if (pEditView[eWhich]->GetWindow() != pWin)
         {
+            lcl_LOKRemoveEditView(GetViewShell(), eWhich);
             pEditView[eWhich]->SetWindow(pWin);
             OSL_FAIL("EditView Window has changed");
         }
@@ -1133,6 +1156,23 @@ void ScViewData::SetEditEngine( ScSplitPos eWhich,
 
     pEditView[eWhich]->Invalidate();            //  needed?
     //  needed, wenn position changed
+
+    if (comphelper::LibreOfficeKit::isActive())
+    {
+        ScTabViewShell* pThisViewShell = GetViewShell();
+        SCTAB nThisTabNo = GetTabNo();
+        auto lAddEditView =
+                [pThisViewShell, nThisTabNo, eWhich] (ScTabViewShell* pOtherViewShell)
+                {
+                    ScViewData& rOtherViewData = pOtherViewShell->GetViewData();
+                    SCTAB nOtherTabNo = rOtherViewData.GetTabNo();
+                    if (nThisTabNo == nOtherTabNo)
+                        pOtherViewShell->AddEditViewToOtherView(pThisViewShell, eWhich);
+                };
+
+        SfxLokHelper::forEachOtherView(pThisViewShell, lAddEditView);
+    }
+
 }
 
 IMPL_LINK_TYPED( ScViewData, EditEngineHdl, EditStatus&, rStatus, void )
@@ -1422,6 +1462,7 @@ void ScViewData::ResetEditView()
         {
             if (bEditActive[i])
             {
+                lcl_LOKRemoveEditView(GetViewShell(), (ScSplitPos)(i));
                 pEngine = pEditView[i]->GetEditEngine();
                 pEngine->RemoveView(pEditView[i]);
                 pEditView[i]->SetOutputArea( Rectangle() );