lokit: scale the validation dropdown with client zoom

For zoom > 2.0 and zoom < 0.5 the scaled dropdown looks either
too oversized or tiny and makes the ui look unpolished, so the
zoom factor is trimmed between this range and then used to scale
the validation window.

Change-Id: Ic69383f273cb32670b6012f59715250dbfcf627c
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/92915
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com>
Reviewed-by: Dennis Francis <dennis.francis@collabora.com>
(cherry picked from commit a87e78df635d4a8e745bfffcf33d022d2a498afa)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/93067
Tested-by: Jenkins

1 files changed, 22 insertions, 5 deletions

diff --git a/sc/source/ui/view/gridwin.cxx b/sc/source/ui/view/gridwin.cxx
index 98b025f6cf61..59a4d6b60d35 100644
--- a/sc/source/ui/view/gridwin.cxx
+++ b/sc/source/ui/view/gridwin.cxx
@@ -1072,8 +1072,10 @@ void ScGridWindow::LaunchDataSelectMenu( SCCOL nCol, SCROW nRow )
     long nHeight = 0;
     pViewData->GetMergeSizePixel( nCol, nRow, nSizeX, nSizeY );
     Point aPos = pViewData->GetScrPos( nCol, nRow, eWhich );
+    bool bLOKActive = comphelper::LibreOfficeKit::isActive();
+    double fListWindowZoom = 1.0;
 
-    if (comphelper::LibreOfficeKit::isActive())
+    if (bLOKActive)
     {
         // aPos is now view-zoom adjusted and in pixels an more importantly this is pixel aligned to the view-zoom,
         // but once we use this to set the position of the floating window, it has no information of view-zoom level
@@ -1084,8 +1086,17 @@ void ScGridWindow::LaunchDataSelectMenu( SCCOL nCol, SCROW nRow )
         double fZoomY(pViewData->GetZoomY());
         aPos.setX(aPos.getX() / fZoomX);
         aPos.setY(aPos.getY() / fZoomY);
+        // Reverse the zooms from sizes too
+        // nSizeX : because we need to rescale with another (trimmed) zoom level below.
         nSizeX = nSizeX / fZoomX;
+        // nSizeY : because this is used by vcl::FloatingWindow later to compute its vertical position
+        // since we pass the flag FloatWinPopupFlags::Down setup the popup.
         nSizeY = nSizeY / fZoomY;
+        // Limit zoom scale for Listwindow in the dropdown.
+        fListWindowZoom = std::max(std::min(fZoomY, 2.0), 0.5);
+        // nSizeX is only used in setting the width of dropdown, so rescale with
+        // the trimmed zoom.
+        nSizeX = nSizeX * fListWindowZoom;
     }
 
     if ( bLayoutRTL )
@@ -1097,12 +1108,14 @@ void ScGridWindow::LaunchDataSelectMenu( SCCOL nCol, SCROW nRow )
     aPos.AdjustY( nSizeY - 1 );
 
     mpFilterFloat.reset(VclPtr<ScFilterFloatingWindow>::Create(this, WinBits(WB_BORDER)));
-    if (comphelper::LibreOfficeKit::isActive())
+    if (bLOKActive)
     {
         mpFilterFloat->SetLOKNotifier(SfxViewShell::Current());
     }
     mpFilterFloat->SetPopupModeEndHdl(LINK( this, ScGridWindow, PopupModeEndHdl));
     mpFilterBox.reset(VclPtr<ScFilterListBox>::Create(mpFilterFloat.get(), this, nCol, nRow, ScFilterBoxMode::DataSelect));
+    if (bLOKActive)
+        mpFilterBox->SetZoom(Fraction(fListWindowZoom));
     // Fix for bug fdo#44925
     if (AllSettings::GetLayoutRTL() != bLayoutRTL)
         mpFilterBox->EnableMirroring();
@@ -1138,12 +1151,16 @@ void ScGridWindow::LaunchDataSelectMenu( SCCOL nCol, SCROW nRow )
 
         // minimum width in pixel
         const long nMinLOKWinWidth = static_cast<long>(1.3 * STD_COL_WIDTH * pViewData->GetPPTX());
-        bool bLOKActive = comphelper::LibreOfficeKit::isActive();
         if (bLOKActive && nSizeX < nMinLOKWinWidth)
             nSizeX = nMinLOKWinWidth;
 
-        if (bLOKActive && aStrings.size() < SC_FILTERLISTBOX_LINES)
-            nHeight = nHeight * (aStrings.size() + 1) / SC_FILTERLISTBOX_LINES;
+        if (bLOKActive)
+        {
+            if (aStrings.size() < SC_FILTERLISTBOX_LINES)
+                nHeight = nHeight * (aStrings.size() + 1) / SC_FILTERLISTBOX_LINES;
+
+            nHeight = nHeight * fListWindowZoom;
+        }
 
         Size aParentSize = GetParent()->GetOutputSizePixel();
         Size aSize( nSizeX, nHeight );