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Metric conversion constants not doubled in each port code.

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@31101 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Włodzimierz Skiba
2004-12-21 16:25:59 +00:00
parent 885fb02fa1
commit e2bcbdfbc7
13 changed files with 33 additions and 114 deletions
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30
include/wx/math.h
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@@ -26,6 +26,36 @@
#define M_PI 3.1415926535897932384626433832795
#endif
// Scaling factors for various unit conversions
#ifndef METRIC_CONVERSION_CONSTANT
#define METRIC_CONVERSION_CONSTANT 0.0393700787
#endif
#ifndef mm2inches
#define mm2inches (METRIC_CONVERSION_CONSTANT)
#endif
#ifndef inches2mm
#define inches2mm (1/(mm2inches))
#endif
#ifndef mm2twips
#define mm2twips (METRIC_CONVERSION_CONSTANT*1440)
#endif
#ifndef twips2mm
#define twips2mm (1/(mm2twips))
#endif
#ifndef mm2pt
#define mm2pt (METRIC_CONVERSION_CONSTANT*72)
#endif
#ifndef pt2mm
#define pt2mm (1/(mm2pt))
#endif
/* unknown __VISAGECC__, __SYMANTECCC__ */
#if defined(__VISUALC__) || defined(__BORLANDC__) || defined(__WATCOMC__)