How to hide dotted lines around the focused control?

[gimel]

I have a question: how to hide dotted lines around the focused control (in our app, we show focus as blue bar under the control)? I didn't experiment with stylesheets yet. We need to support Windows and Mac.

[gimel]

Digged thru Qt sources, found a solution for Vista:

class CheckBoxStyleNoFocusDrawVista: public QWindowsVistaStyle{
public:
	void drawControl(ControlElement element, const QStyleOption *opt,
	                               QPainter *p, const QWidget *widget) const
	{
	    switch (element) {
	    case CE_CheckBox:
	        if (const QStyleOptionButton *btn = qstyleoption_cast<const QStyleOptionButton *>(opt)) {
	            QStyleOptionButton subopt = *btn;
	            subopt.rect = subElementRect(SE_CheckBoxIndicator, btn, widget);
	            drawPrimitive(PE_IndicatorCheckBox, &subopt, p, widget);
	            subopt.rect = subElementRect(SE_CheckBoxContents, btn, widget);
	            drawControl(CE_CheckBoxLabel, &subopt, p, widget);
	        }
	        break;
	    default:
	    	QWindowsVistaStyle::drawControl(element, opt, p, widget);
	    }
	}
};
 
void CheckBox1::CheckBox1():QCheckBox(){
	setStyle(new CheckBoxStyleNoFocusDraw());
}

class CheckBoxStyleNoFocusDrawVista: public QWindowsVistaStyle{
public:
	void drawControl(ControlElement element, const QStyleOption *opt,
	                               QPainter *p, const QWidget *widget) const
	{
	    switch (element) {
	    case CE_CheckBox:
	        if (const QStyleOptionButton *btn = qstyleoption_cast<const QStyleOptionButton *>(opt)) {
	            QStyleOptionButton subopt = *btn;
	            subopt.rect = subElementRect(SE_CheckBoxIndicator, btn, widget);
	            drawPrimitive(PE_IndicatorCheckBox, &subopt, p, widget);
	            subopt.rect = subElementRect(SE_CheckBoxContents, btn, widget);
	            drawControl(CE_CheckBoxLabel, &subopt, p, widget);
	        }
	        break;
	    default:
	    	QWindowsVistaStyle::drawControl(element, opt, p, widget);
	    }
	}
};

void CheckBox1::CheckBox1():QCheckBox(){
	setStyle(new CheckBoxStyleNoFocusDraw());
}

To copy to clipboard, switch view to plain text mode 

This needs to be extended for all operating systems (Windows, XP, Vista, Mac).

[gimel]

Here's a convinience function for determining Windows version:

typedef enum {Vista, Windows, XP} WindowsVersion;
 
WindowsVersion getWindowsVersion(){
	OSVERSIONINFOEX osvi;
   BOOL bOsVersionInfoEx;
   ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
   osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
 
   if( !(bOsVersionInfoEx = GetVersionEx ((OSVERSIONINFO *) &osvi)) ){
	  osvi.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
	  if (! GetVersionEx ( (OSVERSIONINFO *) &osvi) )
		 return Windows;//default
   }
 
   switch (osvi.dwPlatformId){
      case VER_PLATFORM_WIN32_NT:
 
         if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1 )
            return XP;
 
         if ( osvi.dwMajorVersion >= 6 )
            return Vista;
   }
   return Windows;
}
 
class CheckBoxStyleNoFocusDraw_XP: public QWindowsXPStyle{...}
 
class CheckBoxStyleNoFocusDraw_Windows: public QWindowsStyle{...}

typedef enum {Vista, Windows, XP} WindowsVersion;

WindowsVersion getWindowsVersion(){
	OSVERSIONINFOEX osvi;
   BOOL bOsVersionInfoEx;
   ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
   osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);

   if( !(bOsVersionInfoEx = GetVersionEx ((OSVERSIONINFO *) &osvi)) ){
	  osvi.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
	  if (! GetVersionEx ( (OSVERSIONINFO *) &osvi) )
		 return Windows;//default
   }

   switch (osvi.dwPlatformId){
      case VER_PLATFORM_WIN32_NT:

         if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1 )
            return XP;

         if ( osvi.dwMajorVersion >= 6 )
            return Vista;
   }
   return Windows;
}

class CheckBoxStyleNoFocusDraw_XP: public QWindowsXPStyle{...}

class CheckBoxStyleNoFocusDraw_Windows: public QWindowsStyle{...}

To copy to clipboard, switch view to plain text mode 

[aamer4yu]

How about using QSysInfo::WindowsVersion for determining windows version ?