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Use separate event handlers to handle various mouse events in wxPGSpinButton

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One common event handler for all mouse events is less readable than code split into separate handlers dedicated to specific event type.
This commit is contained in:
Artur Wieczorek
2019-06-24 23:37:10 +02:00
parent 8c0a210a75
commit 7a5fbbc06f
1 changed files with 33 additions and 31 deletions
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64
src/propgrid/advprops.cpp
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@@ -146,9 +146,9 @@ public:
m_hasCapture = false; m_hasCapture = false;
m_spins = 1; m_spins = 1;
Bind(wxEVT_LEFT_DOWN, &wxPGSpinButton::OnMouseEvent, this); Bind(wxEVT_LEFT_DOWN, &wxPGSpinButton::OnMouseLeftDown, this);
Bind(wxEVT_LEFT_UP, &wxPGSpinButton::OnMouseEvent, this); Bind(wxEVT_LEFT_UP, &wxPGSpinButton::OnMouseLeftUp, this);
Bind(wxEVT_MOTION, &wxPGSpinButton::OnMouseEvent, this); Bind(wxEVT_MOTION, &wxPGSpinButton::OnMouseMove, this);
Bind(wxEVT_MOUSE_CAPTURE_LOST, &wxPGSpinButton::OnMouseCaptureLost, this); Bind(wxEVT_MOUSE_CAPTURE_LOST, &wxPGSpinButton::OnMouseCaptureLost, this);
} }
@@ -200,44 +200,46 @@ private:
SetCursor(wxNullCursor); SetCursor(wxNullCursor);
} }
void OnMouseEvent(wxMouseEvent& event) void OnMouseLeftDown(wxMouseEvent& evt)
{ {
if ( event.GetEventType() == wxEVT_LEFT_DOWN ) m_bLeftDown = true;
m_ptPosition = evt.GetPosition();
evt.Skip();
}
void OnMouseLeftUp(wxMouseEvent& evt)
{
Release();
m_bLeftDown = false;
evt.Skip();
}
void OnMouseMove(wxMouseEvent& evt)
{
if ( m_bLeftDown )
{ {
m_bLeftDown = true; int dy = m_ptPosition.y - evt.GetPosition().y;
m_ptPosition = event.GetPosition(); if ( dy )
}
else if ( event.GetEventType() == wxEVT_LEFT_UP )
{
Release();
m_bLeftDown = false;
}
else if ( event.GetEventType() == wxEVT_MOTION )
{
if ( m_bLeftDown )
{ {
int dy = m_ptPosition.y - event.GetPosition().y; Capture();
if ( dy ) m_ptPosition = evt.GetPosition();
{
Capture();
m_ptPosition = event.GetPosition();
wxSpinEvent evtscroll( (dy >= 0) ? wxEVT_SCROLL_LINEUP : wxSpinEvent evtscroll( (dy >= 0) ? wxEVT_SCROLL_LINEUP :
wxEVT_SCROLL_LINEDOWN, wxEVT_SCROLL_LINEDOWN,
GetId() ); GetId() );
evtscroll.SetEventObject(this); evtscroll.SetEventObject(this);
wxASSERT( m_spins == 1 ); wxASSERT( m_spins == 1 );
m_spins = abs(dy); m_spins = abs(dy);
GetEventHandler()->ProcessEvent(evtscroll); GetEventHandler()->ProcessEvent(evtscroll);
m_spins = 1; m_spins = 1;
}
} }
} }
event.Skip(); evt.Skip();
} }
void OnMouseCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event)) void OnMouseCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event))
{ {
Release(); Release();