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From Olaf Flebbe, "an implementation of GraphicsWindow::setCursor for WIN32."

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This commit is contained in:
Robert Osfield 2007-06-06 11:28:44 +00:00
parent 85c8797bc4
commit 36d50301cf
2 changed files with 98 additions and 3 deletions
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10
include/osgViewer/api/Win32/GraphicsWindowWin32
View File

@ -78,6 +78,9 @@ class GraphicsWindowWin32 : public osgViewer::GraphicsWindow
/** Switch on/off the cursor.*/
virtual void useCursor(bool /*cursorOn*/);
/** Set mouse cursor to a specific shape.*/
virtual void setCursor(MouseCursor cursor);
/** Handle a native (Win32) windowing event as received from the system */
virtual LRESULT handleNativeWindowingEvent( HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
@ -119,15 +122,20 @@ class GraphicsWindowWin32 : public osgViewer::GraphicsWindow
void transformMouseXY(float& x, float& y);
HCURSOR getOrCreateCursor(MouseCursor mouseShape);
HWND _hwnd;
HDC _hdc;
HGLRC _hglrc;
HCURSOR _currentCursor;
WNDPROC _windowProcedure;
double _timeOfLastCheckEvents;
int _screenOriginX;
int _screenOriginY;
unsigned int _screenWidth;
@ -146,6 +154,8 @@ class GraphicsWindowWin32 : public osgViewer::GraphicsWindow
bool _closeWindow;
bool _destroyWindow;
bool _destroying;
std::map<MouseCursor,HCURSOR> _mouseCursorMap;
};
}

91
src/osgViewer/GraphicsWindowWin32.cpp
View File

@ -1021,6 +1021,7 @@ GraphicsWindowWin32::GraphicsWindowWin32( osg::GraphicsContext::Traits* traits )
_destroying(false)
{
_traits = traits;
setCursor( LeftArrowCursor);
init();
@ -1772,6 +1773,89 @@ void GraphicsWindowWin32::useCursor( bool cursorOn )
_traits->useCursor = cursorOn;
}
void GraphicsWindowWin32::setCursor( MouseCursor mouseCursor )
{
HCURSOR newCursor = getOrCreateCursor( mouseCursor);
if (newCursor == _currentCursor) return;
_currentCursor = newCursor;
_traits->useCursor = (_currentCursor != NULL);
}
HCURSOR GraphicsWindowWin32::getOrCreateCursor(MouseCursor mouseCursor)
{
std::map<MouseCursor,HCURSOR>::iterator i = _mouseCursorMap.find(mouseCursor);
if (i != _mouseCursorMap.end()) return i->second;
switch (mouseCursor) {
case NoCursor:
_mouseCursorMap[mouseCursor] = NULL;
break;
case RightArrowCursor:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_ARROW);
break;
case LeftArrowCursor:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_ARROW);
break;
case InfoCursor:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_SIZEALL);
break;
case DestroyCursor:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_NO );
break;
case HelpCursor:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_HELP );
break;
case CycleCursor:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_NO );
break;
case SprayCursor:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_SIZEALL );
break;
case WaitCursor:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_WAIT);
break;
case TextCursor:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_IBEAM );
break;
case CrosshairCursor:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_CROSS );
break;
case UpDownCursor:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_SIZENS );
break;
case LeftRightCursor:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_SIZEWE );
break;
case TopSideCursor:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_UPARROW );
break;
case BottomSideCursor:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_UPARROW );
break;
case LeftSideCursor:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_SIZEWE);
break;
case RightSideCursor:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_SIZEWE );
break;
case TopLeftCorner:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_SIZENWSE );
break;
case TopRightCorner:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_SIZENESW );
break;
case BottomRightCorner:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_SIZENWSE );
break;
case BottomLeftCorner:
_mouseCursorMap[mouseCursor] = LoadCursor( NULL, IDC_SIZENESW );
break;
}
return _mouseCursorMap[mouseCursor];
}
void GraphicsWindowWin32::adaptKey( WPARAM wParam, LPARAM lParam, int& keySymbol, unsigned int& modifierMask )
{
modifierMask = 0;
@ -2044,9 +2128,10 @@ LRESULT GraphicsWindowWin32::handleNativeWindowingEvent( HWND hwnd, UINT uMsg, W
///////////////////
case WM_SETCURSOR :
///////////////////
if (_traits->useCursor) return ::DefWindowProc(hwnd, uMsg, wParam, lParam);
::SetCursor(NULL);
if (_traits->useCursor)
::SetCursor( _currentCursor);
else
::SetCursor(NULL);
return TRUE;
/////////////////