AuroraMiddleware/wxWidgets
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Fix mouse coordinates in scrolled views to be those that wxWidgets expects.

Browse Source 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@49574 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
David Elliott 2007-11-01 06:06:07 +00:00
parent 618d53b890
commit a4ee505901
1 changed files with 38 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
src/cocoa/window.mm
View File

@ -1202,6 +1202,44 @@ void wxWindowCocoa::InitMouseEvent(wxMouseEvent& event, WX_NSEvent cocoaEvent)
// Mouse events happen at the NSWindow level so we need to convert
// into our bounds coordinates then convert to wx coordinates.
NSPoint cocoaPoint = [m_cocoaNSView convertPoint:[(NSEvent*)cocoaEvent locationInWindow] fromView:nil];
if( m_wxCocoaScrollView != NULL)
{
// This gets the wx client area (i.e. the visible portion of the content) in
// the coordinate system of our (the doucment) view.
NSRect documentVisibleRect = [[m_wxCocoaScrollView->GetNSScrollView() contentView] documentVisibleRect];
// For horizontal, simply subtract the origin.
// e.g. if the origin is at 123 and the user clicks as far left as possible then
// the coordinate that wx wants is 0.
cocoaPoint.x -= documentVisibleRect.origin.x;
if([m_cocoaNSView isFlipped])
{
// In the flipped view case this works exactly like horizontal.
cocoaPoint.y -= documentVisibleRect.origin.y;
}
// For vertical we have to mind non-flipped (e.g. y=0 at bottom) views.
// We also need to mind the fact that we're still in Cocoa coordinates
// and not wx coordinates. The wx coordinate translation will still occur
// and that is going to be wxY = boundsH - cocoaY for non-flipped views.
// When we consider scrolling we are truly interested in how far the top
// edge of the bounds rectangle is scrolled off the screen.
// Assuming the bounds origin is 0 (which is an assumption we make in
// wxCocoa since wxWidgets has no analog to it) then the top edge of
// the bounds rectangle is simply its height. The top edge of the
// documentVisibleRect (e.g. the client area) is its height plus
// its origin.
// Thus, we simply need add the distance between the bounds top
// and the client (docuemntVisibleRect) top.
// Or putting it another way, we subtract the distance between the
// client top and the bounds top.
else
{
NSRect bounds = [m_cocoaNSView bounds];
CGFloat scrollYOrigin = (bounds.size.height - (documentVisibleRect.origin.y + documentVisibleRect.size.height));
cocoaPoint.y += scrollYOrigin;
}
}
NSPoint pointWx = CocoaTransformBoundsToWx(cocoaPoint);
// FIXME: Should we be adjusting for client area origin?
const wxPoint &clientorigin = GetClientAreaOrigin();