tdf#119965 implement tooltip widget style on macos

Change-Id: I7625adbf365aa908c072ca42060e926569629044
Reviewed-on: https://gerrit.libreoffice.org/71279
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
(cherry picked from commit 43f8ea21)

vcl/osx/salframe.cxx

@@ -1181,6 +1181,8 @@ void AquaSalFrame::UpdateSettings( AllSettings& rSettings )
     aStyleSettings.SetTitleFont( aTitleFont );
     aStyleSettings.SetFloatTitleFont( aTitleFont );
 
+    vcl::Font aTooltipFont(getFont([NSFont toolTipsFontOfSize: 0], nDPIY, aAppFont));
+    aStyleSettings.SetHelpFont(aTooltipFont);
 
     Color aHighlightColor( getColor( [NSColor selectedTextBackgroundColor],
                                       aStyleSettings.GetHighlightColor(), mpNSWindow ) );

vcl/osx/salnativewidgets.cxx

@@ -255,6 +255,8 @@ bool AquaSalGraphics::IsNativeControlSupported( ControlType nType, ControlPart n
             break;
 
         case ControlType::Tooltip: // ** TO DO
+            if (nPart == ControlPart::Entire)
+                return true;
             break;
 
         case ControlType::MenuPopup:
@@ -423,6 +425,21 @@ bool AquaSalGraphics::drawNativeControl(ControlType nType,
         }
         break;
 
+        case ControlType::Tooltip:
+        {
+            HIThemeBackgroundDrawInfo aThemeBackgroundInfo;
+            aThemeBackgroundInfo.version = 0;
+            aThemeBackgroundInfo.state = getState( nState );
+            aThemeBackgroundInfo.kind = kThemeBrushAlertBackgroundActive;
+            rc.size.width += 2;
+            rc.size.height += 2;
+
+            HIThemeApplyBackground( &rc, &aThemeBackgroundInfo, mrContext, kHIThemeOrientationNormal);
+            CGContextFillRect( mrContext, rc );
+            bOK = true;
+        }
+        break;
+
     case ControlType::Menubar:
     case ControlType::MenuPopup:
         {