5.22

1 files changed, 65 insertions, 3 deletions

diff --git a/wx+/font_size.h b/wx+/font_size.h
index 773be928..7bfc62fc 100644
--- a/wx+/font_size.h
+++ b/wx+/font_size.h
@@ -9,16 +9,78 @@
 
 #include <zen/basic_math.h>
 #include <wx/window.h>
+#ifdef ZEN_WIN
+#include <zen/dll.h>
+#include <Uxtheme.h>
+#include <vsstyle.h> //TEXT_MAININSTRUCTION
+#include <vssym32.h> //TMT_COLOR
+#endif
 
 namespace zen
 {
 //set portable font size in multiples of the operating system's default font size
+void setRelativeFontSize(wxWindow& control, double factor);
+void setMainInstructionFont(wxWindow& control); //following Windows/Gnome/OS X guidelines
+
+
+
+
+
+
+
+
+
+
+
+
+//###################### implementation #####################
 inline
 void setRelativeFontSize(wxWindow& control, double factor)
 {
-    wxFont fnt = control.GetFont();
-    fnt.SetPointSize(numeric::round(wxNORMAL_FONT->GetPointSize() * factor));
-    control.SetFont(fnt);
+    wxFont font = control.GetFont();
+    font.SetPointSize(numeric::round(wxNORMAL_FONT->GetPointSize() * factor));
+    control.SetFont(font);
+};
+
+
+inline
+void setMainInstructionFont(wxWindow& control)
+{
+    wxFont font = control.GetFont();
+#ifdef ZEN_WIN //http://msdn.microsoft.com/de-DE/library/windows/desktop/aa974176#fonts
+    font.SetPointSize(numeric::round(wxNORMAL_FONT->GetPointSize() * 4.0 / 3));
+
+    //get main instruction color: don't hard-code, respect accessibility!
+    typedef HTHEME  (WINAPI* OpenThemeDataFun )(HWND hwnd, LPCWSTR pszClassList);
+    typedef HRESULT (WINAPI* CloseThemeDataFun)(HTHEME hTheme);
+    typedef HRESULT (WINAPI* GetThemeColorFun )(HTHEME hTheme, int iPartId, int iStateId, int iPropId, COLORREF *pColor);
+
+    const SysDllFun<OpenThemeDataFun>  openThemeData (L"UxTheme.dll", "OpenThemeData"); //available with Windows XP and later
+    const SysDllFun<CloseThemeDataFun> closeThemeData(L"UxTheme.dll", "CloseThemeData");
+    const SysDllFun<GetThemeColorFun>  getThemeColor (L"UxTheme.dll", "GetThemeColor");
+    if (openThemeData && closeThemeData && getThemeColor)
+        if (HTHEME hTheme = openThemeData(NULL,          //__in  HWND hwnd,
+                                          L"TEXTSTYLE")) //__in  LPCWSTR pszClassList
+        {
+            ZEN_ON_SCOPE_EXIT(closeThemeData(hTheme));
+
+            COLORREF cr = {};
+            if (getThemeColor(hTheme,               //_In_   HTHEME hTheme,
+                              TEXT_MAININSTRUCTION, //  _In_   int iPartId,
+                              0,                    //  _In_   int iStateId,
+                              TMT_TEXTCOLOR,        //  _In_   int iPropId,
+                              &cr) == S_OK)         //  _Out_  COLORREF *pColor
+                control.SetForegroundColour(wxColour(cr));
+        }
+
+#elif defined ZEN_LINUX //https://developer.gnome.org/hig-book/3.2/hig-book.html#alert-text
+    font.SetPointSize(numeric::round(wxNORMAL_FONT->GetPointSize() * 12.0 / 11));
+    font.SetWeight(wxFONTWEIGHT_BOLD);
+
+#elif defined ZEN_MAC //https://developer.apple.com/library/mac/documentation/UserExperience/Conceptual/AppleHIGuidelines/Windows/Windows.html#//apple_ref/doc/uid/20000961-TP10
+    font.SetWeight(wxFONTWEIGHT_BOLD);
+#endif
+    control.SetFont(font);
 };
 }