* QLPainter: antialias edges of primitives only if text is antialiased.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@18197 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/src/frontends/qt4/QLPainter.cpp b/src/frontends/qt4/QLPainter.cpp
index 8eafc0320d632c3efe36fcd58a2642a3c32de803..9420fc1c5a7c36a3281899c4413996343a75b06b 100644 (file)
--- a/src/frontends/qt4/QLPainter.cpp
+++ b/src/frontends/qt4/QLPainter.cpp
@@ -98,7 +98,8 @@ void QLPainter::line(int x1, int y1, int x2, int y2,
                return;
 
        setQPainterPen(col, ls, lw);
-       bool const do_antialiasing = x1 != x2 && y1 != y2;
+       bool const do_antialiasing = renderHints() & TextAntialiasing
+               && x1 != x2 && y1 != y2;
        setRenderHint(Antialiasing, do_antialiasing);
        drawLine(x1, y1, x2, y2);
        setRenderHint(Antialiasing, false);
@@ -113,10 +114,11 @@ void QLPainter::lines(int const * xp, int const * yp, int np,
        if (!isDrawingEnabled())
                return;
 
+       bool const text_is_antialiased = renderHints() & TextAntialiasing;
        setQPainterPen(col, ls, lw);
        for (int i = 1; i < np; ++i) {
-               bool const do_antialiasing = false &&
-                       xp[i-1] != xp[i] && yp[i-1] != yp[i];
+               bool const do_antialiasing = text_is_antialiased 
+                       && xp[i-1] != xp[i] && yp[i-1] != yp[i];
                setRenderHint(Antialiasing, do_antialiasing);
                drawLine(xp[i-1], yp[i-1], xp[i], yp[i]);
                setRenderHint(Antialiasing, false);
@@ -151,7 +153,7 @@ void QLPainter::arc(int x, int y, unsigned int w, unsigned int h,
 
        // LyX usings 1/64ths degree, Qt usings 1/16th
        setQPainterPen(col);
-       bool const do_antialiasing = true; 
+       bool const do_antialiasing = renderHints() & TextAntialiasing;
        setRenderHint(Antialiasing, do_antialiasing);
        drawArc(x, y, w, h, a1 / 4, a2 / 4);
        setRenderHint(Antialiasing, false);