Fix fdo#55142 - wrong character pos calculation on mac.

Change-Id: If8a0f527102b70bf1dcf292f8df31aaff9fba5c8

vcl/aqua/source/gdi/atsui/salgdi.cxx

@@ -354,6 +354,8 @@ AquaSalGraphics::AquaSalGraphics()
 {
     // create the style object for font attributes
     ATSUCreateStyle( &maATSUStyle );
+
+    ResetFontStyle();
 }
 
 // -----------------------------------------------------------------------
@@ -579,6 +581,29 @@ bool AquaSalGraphics::AddTempDevFont( ImplDevFontList*,
 
 // -----------------------------------------------------------------------
 
+void AquaSalGraphics::ResetFontStyle()
+{
+    ATSUClearStyle(maATSUStyle);
+
+    // Set justification attributes
+    ATSJustPriorityWidthDeltaOverrides nPriorityJustOverrides;
+    memset(nPriorityJustOverrides, 0, sizeof(nPriorityJustOverrides));
+
+    nPriorityJustOverrides[kJUSTLetterPriority].growFlags = kJUSTOverrideLimits;
+    nPriorityJustOverrides[kJUSTLetterPriority].shrinkFlags = kJUSTOverrideLimits;
+
+    ATSUAttributeTag        theTag = kATSUPriorityJustOverrideTag;
+    ByteCount               theSize = sizeof(ATSJustPriorityWidthDeltaOverrides);
+    ATSUAttributeValuePtr   thePtr = &nPriorityJustOverrides;
+    OSStatus eStatus = ATSUSetAttributes(maATSUStyle, 1, &theTag, &theSize, &thePtr);
+    if (eStatus != noErr)
+    {
+        DBG_WARNING("AquaSalGraphics::ResetFontStyle() : Could not override justification attributes!\n");
+    }
+}
+
+// -----------------------------------------------------------------------
+
 // callbacks from ATSUGlyphGetCubicPaths() fore GetGlyphOutline()
 struct GgoData { basegfx::B2DPolygon maPolygon; basegfx::B2DPolyPolygon* mpPolyPoly; };
 
@@ -698,7 +723,7 @@ sal_uInt16 AquaSalGraphics::SetFont( FontSelectPattern* pReqFont, int /*nFallbac
 {
     if( !pReqFont )
     {
-        ATSUClearStyle( maATSUStyle );
+        ResetFontStyle();
         mpMacFontData = NULL;
         return 0;
     }
@@ -784,7 +809,7 @@ sal_uInt16 AquaSalGraphics::SetFont( FontSelectPattern* pReqFont, int /*nFallbac
     if( eStatus != noErr )
     {
         DBG_WARNING( "AquaSalGraphics::SetFont() : Could not set font attributes!\n");
-        ATSUClearStyle( maATSUStyle );
+        ResetFontStyle();
         mpMacFontData = NULL;
         return 0;
     }

vcl/inc/aqua/atsui/salgdi.h

@@ -353,6 +353,7 @@ private:
     bool GetRawFontData( const PhysicalFontFace* pFontData,
                          std::vector<unsigned char>& rBuffer,
                          bool* pJustCFF );
+    void ResetFontStyle();
 };
 
 // --- some trivial inlines