Fix highlighting in IGUIEditBox where kerning pairs are used in the font. For...

Fix highlighting in IGUIEditBox where kerning pairs are used in the font. For example in future italic, OS or other custom fonts.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@2444 dfc29bdd-3216-0410-991c-e03cc46cb475

changes.txt

 Changes in 1.6
 
+ - Fix highlighting in IGUIEditBox where kerning pairs are used in the font. For example in future italic, OS or other custom fonts.
+
  - IOSOperator::getTextFromClipboard returns now const c8* instead of c8* 
 
  - Support for copy&paste on linux (X11) added (fixing bug 2804014 found by Pan)

source/Irrlicht/CGUIEditBox.cpp

@@ -803,6 +803,12 @@ void CGUIEditBox::draw()
 						// highlight start is on this line
 						s = txtLine->subString(0, realmbgn - startPos);
 						mbegin = font->getDimension(s.c_str()).Width;
+
+						// deal with kerning
+						mbegin += font->getKerningWidth( 
+							&((*txtLine)[realmbgn - startPos]), 
+							realmbgn - startPos > 0 ? &((*txtLine)[realmbgn - startPos - 1]) : 0);   
+
 						lineStartPos = realmbgn - startPos;
 					}
 					if (i == hlineStart + hlineCount - 1)
@@ -846,7 +852,8 @@ void CGUIEditBox::draw()
 			startPos = BrokenTextPositions[cursorLine];
 		}
 		s = txtLine->subString(0,CursorPos-startPos);
-		charcursorpos = font->getDimension(s.c_str()).Width;
+		charcursorpos = font->getDimension(s.c_str()).Width + 
+			font->getKerningWidth(L"_", CursorPos-startPos > 0 ? &((*txtLine)[CursorPos-startPos-1]) : 0);
 
 		if (focus && (os::Timer::getTime() - BlinkStartTime) % 700 < 350)
 		{