sc: add an overlay to show sparklines in a sparkline group

This adds an overlay that shows/selects all sparklines in a
sparkline group for the cursor cell sparkline, if the cursor cell
has an associated sparkline.

Change-Id: I60a5873ebdf8606f262d217caf6011c4a003801a
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/132692
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>

2 files changed, 70 insertions, 0 deletions

diff --git a/sc/source/ui/inc/gridwin.hxx b/sc/source/ui/inc/gridwin.hxx
index b4117736484e..93d7abd095a3 100644
--- a/sc/source/ui/inc/gridwin.hxx
+++ b/sc/source/ui/inc/gridwin.hxx
@@ -106,6 +106,7 @@ class SAL_DLLPUBLIC_RTTI ScGridWindow : public vcl::Window, public DropTargetHel
     std::unique_ptr<sdr::overlay::OverlayObjectList> mpOODragRect;
     std::unique_ptr<sdr::overlay::OverlayObjectList> mpOOHeader;
     std::unique_ptr<sdr::overlay::OverlayObjectList> mpOOShrink;
+    std::unique_ptr<sdr::overlay::OverlayObjectList> mpOOSparklineGroup;
 
     std::optional<tools::Rectangle> mpAutoFillRect;
 
@@ -462,6 +463,8 @@ public:
     const std::vector<editeng::MisspellRanges>* GetAutoSpellData( SCCOL nPosX, SCROW nPosY );
     bool InsideVisibleRange( SCCOL nPosX, SCROW nPosY );
 
+    void UpdateSparklineGroupOverlay();
+    void DeleteSparklineGroupOverlay();
     void            DeleteCopySourceOverlay();
     void            UpdateCopySourceOverlay();
     void            DeleteCursorOverlay();
diff --git a/sc/source/ui/view/gridwin.cxx b/sc/source/ui/view/gridwin.cxx
index 6ce6a6d6c421..516c9ef16d50 100644
--- a/sc/source/ui/view/gridwin.cxx
+++ b/sc/source/ui/view/gridwin.cxx
@@ -128,6 +128,7 @@
 #include <datamapper.hxx>
 #include <inputopt.hxx>
 #include <queryparam.hxx>
+#include <SparklineList.hxx>
 
 #include <officecfg/Office/Common.hxx>
 
@@ -6034,6 +6035,7 @@ void ScGridWindow::CursorChanged()
     // now, just re-create them
 
     UpdateCursorOverlay();
+    UpdateSparklineGroupOverlay();
 }
 
 void ScGridWindow::ImpCreateOverlayObjects()
@@ -6045,6 +6047,7 @@ void ScGridWindow::ImpCreateOverlayObjects()
     UpdateDragRectOverlay();
     UpdateHeaderOverlay();
     UpdateShrinkOverlay();
+    UpdateSparklineGroupOverlay();
 }
 
 void ScGridWindow::ImpDestroyOverlayObjects()
@@ -6056,6 +6059,7 @@ void ScGridWindow::ImpDestroyOverlayObjects()
     DeleteDragRectOverlay();
     DeleteHeaderOverlay();
     DeleteShrinkOverlay();
+    DeleteSparklineGroupOverlay();
 }
 
 void ScGridWindow::UpdateAllOverlays()
@@ -6973,6 +6977,69 @@ void ScGridWindow::UpdateShrinkOverlay()
         SetMapMode( aOldMode );
 }
 
+void ScGridWindow::DeleteSparklineGroupOverlay()
+{
+    mpOOSparklineGroup.reset();
+}
+
+void ScGridWindow::UpdateSparklineGroupOverlay()
+{
+    MapMode aDrawMode = GetDrawMapMode();
+
+    MapMode aOldMode = GetMapMode();
+    if (aOldMode != aDrawMode)
+        SetMapMode(aDrawMode);
+
+    DeleteSparklineGroupOverlay();
+
+    ScAddress aCurrentAddress = mrViewData.GetCurPos();
+
+    ScDocument& rDocument = mrViewData.GetDocument();
+    if (auto pSparkline = rDocument.GetSparkline(aCurrentAddress))
+    {
+        mpOOSparklineGroup.reset(new sdr::overlay::OverlayObjectList);
+
+        rtl::Reference<sdr::overlay::OverlayManager> xOverlayManager = getOverlayManager();
+        if (xOverlayManager.is())
+        {
+            auto* pList = rDocument.GetSparklineList(aCurrentAddress.Tab());
+            if (pList)
+            {
+                auto const& pSparklines = pList->getSparklinesFor(pSparkline->getSparklineGroup());
+
+                Color aColor = SvtOptionsDrawinglayer::getHilightColor();
+
+                std::vector<basegfx::B2DRange> aRanges;
+                const basegfx::B2DHomMatrix aTransform(GetOutDev()->GetInverseViewTransformation());
+
+                for (auto const& pCurrentSparkline : pSparklines)
+                {
+                    SCCOL nColumn = pCurrentSparkline->getColumn();
+                    SCROW nRow = pCurrentSparkline->getRow();
+
+                    Point aStart = mrViewData.GetScrPos(nColumn, nRow, eWhich);
+                    Point aEnd = mrViewData.GetScrPos(nColumn + 1, nRow + 1, eWhich);
+
+                    basegfx::B2DRange aRange(aStart.X(), aStart.Y(), aEnd.X(), aEnd.Y());
+
+                    aRange.transform(aTransform);
+                    aRanges.push_back(aRange);
+                }
+
+                std::unique_ptr<sdr::overlay::OverlayObject> pOverlay(new sdr::overlay::OverlaySelection(
+                        sdr::overlay::OverlayType::Transparent,
+                        aColor, std::move(aRanges), true));
+
+                xOverlayManager->add(*pOverlay);
+                mpOOSparklineGroup->append(std::move(pOverlay));
+            }
+        }
+    }
+
+    if (aOldMode != aDrawMode)
+        SetMapMode(aOldMode);
+}
+
 // #i70788# central method to get the OverlayManager safely
 rtl::Reference<sdr::overlay::OverlayManager> ScGridWindow::getOverlayManager() const
 {