From: Julian Smart <julian@anthemion.co.uk>
Date: Thu, 28 Feb 2002 15:57:26 +0000 (+0000)
Subject: Corrected points to pixels calculation
X-Git-Url: https://git.saurik.com/wxWidgets.git/commitdiff_plain/0a68bc69086f122b9f7166f505c415db9ee21afe

Corrected points to pixels calculation


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@14425 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---

diff --git a/src/unix/fontutil.cpp b/src/unix/fontutil.cpp
index 6ac7550395..7379c3aab2 100644
--- a/src/unix/fontutil.cpp
+++ b/src/unix/fontutil.cpp
@@ -644,20 +644,17 @@ static wxNativeFont wxLoadQueryFont(int pointSize,
 
     int yPixelsPerCM = screenInfo.ydpcm;
 
-    // A point is 1/20 of an inch.
+    // A point is 1/72 of an inch.
     // An inch is 2.541 cm.
-    // So pixelHeight = (pointSize / 20) (inches) * 2.541 (for cm) * yPixelsPerCM (for pixels)
+    // So pixelHeight = (pointSize / 72) (inches) * 2.541 (for cm) * yPixelsPerCM (for pixels)
     // In fact pointSize is 10 * the normal point size so
     // divide by 10.
 
-    // I don't know why this is necessary, but otherwise fonts
-    // are just too big.
-    float fudgeFactor = 0.6 ;
-    int pixelHeight = (int) ( (((float)pointSize) / 200.0) * 2.541 * (float) yPixelsPerCM * fudgeFactor) ;
+    int pixelHeight = (int) ( (((float)pointSize) / 720.0) * 2.541 * (float) yPixelsPerCM * fudgeFactor) ;
 
     // An alternative: assume that the screen is 72 dpi.
-    // This gets a similar result to above (pre-fudge factor)
-    //int pixelHeight = (int) (((float)pointSize / 200.0) * 72.0) ;
+    //int pixelHeight = (int) (((float)pointSize / 720.0) * 72.0) ;
+    //int pixelHeight = (int) ((float)pointSize / 10.0) ;
     
     GR_LOGFONT logFont;
     logFont.lfHeight = pixelHeight;