AuroraMiddleware/wxWidgets
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Use separate event handlers to handle individual wxPGHeaderCtrl events

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The code to handle events split into separate functions dedicated to handle the events of specific type is more readable than the code concentrated in one function handling all kinds of events.
This commit is contained in:
Artur Wieczorek 2019-05-21 23:11:43 +02:00
parent 5fc0af423e
commit e45c6b0dd1
1 changed files with 37 additions and 44 deletions
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81
src/propgrid/manager.cpp
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@ -239,6 +239,10 @@ public:
// Seed titles with defaults
m_columns[0]->SetTitle(_("Property"));
m_columns[1]->SetTitle(_("Value"));
Bind(wxEVT_HEADER_RESIZING, &wxPGHeaderCtrl::OnResizing, this);
Bind(wxEVT_HEADER_BEGIN_RESIZE, &wxPGHeaderCtrl::OnBeginResize, this);
Bind(wxEVT_HEADER_END_RESIZE, &wxPGHeaderCtrl::OnEndResize, this);
}
virtual ~wxPGHeaderCtrl()
@ -352,56 +356,45 @@ private:
wxPG_SPLITTER_FROM_EVENT);
}
virtual bool ProcessEvent( wxEvent& event ) wxOVERRIDE
void OnResizing(wxHeaderCtrlEvent& evt)
{
wxHeaderCtrlEvent* hcEvent = wxDynamicCast(&event, wxHeaderCtrlEvent);
if ( hcEvent )
{
wxPropertyGrid* pg = m_manager->GetGrid();
int col = hcEvent->GetColumn();
wxEventType evtType = event.GetEventType();
int col = evt.GetColumn();
int colWidth = evt.GetWidth();
if ( evtType == wxEVT_HEADER_RESIZING )
{
int colWidth = hcEvent->GetWidth();
OnSetColumnWidth(col, colWidth);
OnColumWidthsChanged();
OnSetColumnWidth(col, colWidth);
OnColumWidthsChanged();
wxPropertyGrid* pg = m_manager->GetGrid();
pg->SendEvent(wxEVT_PG_COL_DRAGGING, NULL, NULL, 0,
(unsigned int)col);
}
pg->SendEvent(wxEVT_PG_COL_DRAGGING,
NULL, NULL, 0,
(unsigned int)col);
void OnBeginResize(wxHeaderCtrlEvent& evt)
{
int col = evt.GetColumn();
wxPropertyGrid* pg = m_manager->GetGrid();
return true;
}
else if ( evtType == wxEVT_HEADER_BEGIN_RESIZE )
{
// Don't allow resizing the rightmost column
// (like it's not allowed for the rightmost wxPropertyGrid splitter)
if ( col == (int)m_page->GetColumnCount() - 1 )
hcEvent->Veto();
// Never allow column resize if layout is static
else if ( m_manager->HasFlag(wxPG_STATIC_SPLITTER) )
hcEvent->Veto();
// Allow application to veto dragging
else if ( pg->SendEvent(wxEVT_PG_COL_BEGIN_DRAG,
NULL, NULL, 0,
(unsigned int)col) )
hcEvent->Veto();
// Don't allow resizing the rightmost column
// (like it's not allowed for the rightmost wxPropertyGrid splitter)
if ( col == (int)m_page->GetColumnCount() - 1 )
evt.Veto();
// Never allow column resize if layout is static
else if ( m_manager->HasFlag(wxPG_STATIC_SPLITTER) )
evt.Veto();
// Allow application to veto dragging
else if ( pg->SendEvent(wxEVT_PG_COL_BEGIN_DRAG,
NULL, NULL, 0,
(unsigned int)col) )
evt.Veto();
}
return true;
}
else if ( evtType == wxEVT_HEADER_END_RESIZE )
{
pg->SendEvent(wxEVT_PG_COL_END_DRAG,
NULL, NULL, 0,
(unsigned int)col);
return true;
}
}
return wxHeaderCtrl::ProcessEvent(event);
void OnEndResize(wxHeaderCtrlEvent& evt)
{
int col = evt.GetColumn();
wxPropertyGrid* pg = m_manager->GetGrid();
pg->SendEvent(wxEVT_PG_COL_END_DRAG,
NULL, NULL, 0,
(unsigned int)col);
}
wxPropertyGridManager* m_manager;