FGFS-4.1/OpenSceneGraph
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From Erik Johnson, "There is an issue on win32 if the application hides the cursor using GraphicsWindowWin32::useCursor(false). The cursor has a habit of re-showing itself.

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To reproduce, on win32:

-Run osgViewer in a windowed mode, with the cursor off, as such:
    osgViewer::Viewer::Windows windows;
    viewer.getWindows(windows);
    for(osgViewer::Viewer::Windows::iterator itr = windows.begin();
       itr != windows.end();
       ++itr)
    {
       (*itr)->useCursor( false );
    }

-Quickly move the cursor into the window  (cursor it should be hidden)
-Resize the window by dragging the border (notice the cursor changes to "resize" cursor)
-Move the cursor back to the inside of the window (notice the cursor is not hidden anymore)

The attached SVN patch will set the cursor to a "NoCursor" during useCursor(false).  This correctly stores the no cursor state, so it can be rejuvenated after a future cursor change.  This patch also fixes a couple instances where a hidden cursor should show itself, like when it's on the title bar, or the window close button."
This commit is contained in:
Robert Osfield 2010-02-25 18:05:59 +00:00
parent 8059c4a745
commit 7ca071192e
1 changed files with 14 additions and 1 deletions
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15
src/osgViewer/GraphicsWindowWin32.cpp
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@ -2057,6 +2057,10 @@ void GraphicsWindowWin32::setWindowName( const std::string & name )
void GraphicsWindowWin32::useCursor( bool cursorOn )
{
_traits->useCursor = cursorOn;
if (_traits->useCursor == false)
{
setCursor(NoCursor);
}
}
void GraphicsWindowWin32::setCursor( MouseCursor mouseCursor )
@ -2074,7 +2078,7 @@ void GraphicsWindowWin32::setCursorImpl( MouseCursor mouseCursor )
if (newCursor == _currentCursor) return;
_currentCursor = newCursor;
_traits->useCursor = (_currentCursor != NULL);
_traits->useCursor = (_currentCursor != NULL) && (_mouseCursor != NoCursor);
if (_mouseCursor != InheritCursor)
::SetCursor(_currentCursor);
@ -2490,6 +2494,15 @@ LRESULT GraphicsWindowWin32::handleNativeWindowingEvent( HWND hwnd, UINT uMsg, W
case HTGROWBOX:
setCursorImpl(BottomRightCorner);
break;
case HTSYSMENU:
case HTCAPTION:
case HTMAXBUTTON:
case HTMINBUTTON:
case HTCLOSE:
case HTHELP:
setCursorImpl(LeftArrowCursor);
break;
default:
if (_traits->useCursor && _appMouseCursor != InheritCursor)
setCursorImpl(_appMouseCursor);