Hi,
I recently updated wxArt2D and I discovered a problem with
a2dCanvasObject::IsHitWorld() afterwards:
To me it seems that you have replaced:
a2dIterC ic( canvasView );
a2dCanvasObject *handle = obj->IsHitWorld( ic, x, y, wxLAYER_ALL,
a2dCANOBJHITOPTION_NOROOT );
which worked fine for me with:
a2dIterC ic( canvasView );
ic.SetPerLayerMode( true );
a2dHitEvent hitEvent = a2dHitEvent( x, y, false );
a2dCanvasObject *handle = obj->IsHitWorld( ic, hitEvent );
what I would suppose to do exactly the same but unfortunately never
finds an object.
I think I'm missing something important here but cannot figuere it out
myself. Could you help me, please?
Please see my code below.
Best regards
Glaz
void MyToolController::OnMouseEvent( wxMouseEvent& event )
{
double mx = event.GetX();
double my = event.GetY();
//to world coordinates to do hit test in world coordinates
double xw = GetCanvasView()->GetDrawer2D()->DeviceToWorldX( mx );
double yw = GetCanvasView()->GetDrawer2D()->DeviceToWorldY( my );
a2dCanvasObject *a2dCanObj = GetCanvasView()->IsHitWorld( xw, yw );
// The mouse is moving.
if( event.Moving() )
{
// The mouse is over an object.
if( a2dCanObj )
{
// Test if the mouse hit a handle.
// Old way - not working anymore since the wxArt2D
update.
std::string handleHit = HitTest::handleHit( dguie, xw,
yw,
GetCanvasView() );
// New way - never finds a handle.
std::string handleHit = HitTest::handleHit_2( dguie,
xw, yw,
GetCanvasView() );
// Now do something with the found handle if a handle
has been found.
}
}
// Old and formerly working way of doing the hit test.
// A static method.
std::string HitTest::handleHit( a2dCanvasObject *obj, double x, double
y, a2dCanvasView *canvasView )
{
a2dIterC ic( canvasView );
a2dCanvasObject *handle = obj->IsHitWorld( ic, x, y, wxLAYER_ALL,
a2dCANOBJHITOPTION_NOROOT );
if( handle )
{
if( handle->GetName() == "LOWERLEFT" ) return
"LOWERLEFT";
if( handle->GetName() == "UPPERLEFT" ) return
"UPPERLEFT";
if( handle->GetName() == "UPPERRIGHT" ) return
"UPPERRIGHT";
if( handle->GetName() == "LOWERRIGHT" ) return
"LOWERRIGHT";
if( handle->GetName() == "MIDDLELEFT" ) return
"MIDDLELEFT";
if( handle->GetName() == "UPPERMIDDLE" ) return
"UPPERMIDDLE";
if( handle->GetName() == "MIDDLERIGHT" ) return
"MIDDLERIGHT";
if( handle->GetName() == "LOWERMIDDLE" ) return
"LOWERMIDDLE";
}
return "NOHANDLEHIT";
}
// New but not working way of doing the hit test.
// A static method.
std::string HitTest::handleHit_2( a2dCanvasObject *obj, double x, double
y, a2dCanvasView *canvasView )
{
a2dIterC ic( canvasView );
ic.SetPerLayerMode( true );
a2dHitEvent hitEvent = a2dHitEvent( x, y, false );
//a2dCanvasObject *handle = obj->IsHitWorld( ic, hitEvent );
a2dCanvasObject *handle = obj->ChildIsHitWorld( ic, hitEvent );
if( handle )
{
if( handle->GetName() == "LOWERLEFT" ) return
"LOWERLEFT";
if( handle->GetName() == "UPPERLEFT" ) return
"UPPERLEFT";
if( handle->GetName() == "UPPERRIGHT" ) return
"UPPERRIGHT";
if( handle->GetName() == "LOWERRIGHT" ) return
"LOWERRIGHT";
if( handle->GetName() == "MIDDLELEFT" ) return
"MIDDLELEFT";
if( handle->GetName() == "UPPERMIDDLE" ) return
"UPPERMIDDLE";
if( handle->GetName() == "MIDDLERIGHT" ) return
"MIDDLERIGHT";
if( handle->GetName() == "LOWERMIDDLE" ) return
"LOWERMIDDLE";
}
return "NOHANDLEHIT";
}
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