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implement column resizing events in wxHeaderCtrl

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57190 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2008-12-08 14:40:42 +00:00
parent 4bfd0ed552
commit aef252d9da
9 changed files with 295 additions and 70 deletions
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85
src/msw/headerctrl.cpp
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@@ -260,16 +260,7 @@ void wxHeaderCtrl::DoSetOrInsertItem(Operation oper, unsigned int idx)
// wxHeaderCtrl events
// ----------------------------------------------------------------------------
bool wxHeaderCtrl::SendEvent(wxEventType evtType, unsigned int idx)
{
wxHeaderCtrlEvent event(evtType, GetId());
event.SetEventObject(this);
event.SetColumn(idx);
return GetEventHandler()->ProcessEvent(event);
}
bool wxHeaderCtrl::SendClickEvent(bool dblclk, int button, unsigned int idx)
wxEventType wxHeaderCtrl::GetClickEventType(bool dblclk, int button)
{
wxEventType evtType;
switch ( button )
@@ -291,23 +282,27 @@ bool wxHeaderCtrl::SendClickEvent(bool dblclk, int button, unsigned int idx)
default:
wxFAIL_MSG( wxS("unexpected event type") );
return false;
evtType = wxEVT_NULL;
}
return SendEvent(evtType, idx);
return evtType;
}
bool wxHeaderCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
{
NMHEADER * const nmhdr = (NMHEADER *)lParam;
const int idx = nmhdr->iItem;
wxEventType evtType = wxEVT_NULL;
int idx = nmhdr->iItem;
int width = 0;
switch ( const UINT code = nmhdr->hdr.code )
{
// click events
// ------------
case HDN_ITEMCLICK:
case HDN_ITEMDBLCLICK:
if ( SendClickEvent(code == HDN_ITEMDBLCLICK, nmhdr->iButton, idx) )
return true;
evtType = GetClickEventType(code == HDN_ITEMDBLCLICK, nmhdr->iButton);
break;
// although we should get the notifications about the right clicks
@@ -317,20 +312,64 @@ bool wxHeaderCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
case NM_RDBLCLK:
{
POINT pt;
const int col = wxMSWGetColumnClicked(&nmhdr->hdr, &pt);
if ( col != wxNOT_FOUND )
{
if ( SendClickEvent(code == NM_RDBLCLK, 1, col) )
return true;
}
idx = wxMSWGetColumnClicked(&nmhdr->hdr, &pt);
if ( idx != wxNOT_FOUND )
evtType = GetClickEventType(code == NM_RDBLCLK, 1);
//else: ignore clicks outside any column
}
break;
case HDN_DIVIDERDBLCLICK:
if ( SendEvent(wxEVT_COMMAND_HEADER_SEPARATOR_DCLICK, idx) )
return true;
evtType = wxEVT_COMMAND_HEADER_SEPARATOR_DCLICK;
break;
// column resizing events
// ----------------------
// see comments in wxListCtrl::MSWOnNotify() for why we catch both
// ASCII and Unicode versions of this message
case HDN_BEGINTRACKA:
case HDN_BEGINTRACKW:
evtType = wxEVT_COMMAND_HEADER_BEGIN_DRAG;
// fall through
case HDN_TRACKA:
case HDN_TRACKW:
if ( evtType == wxEVT_NULL )
evtType = wxEVT_COMMAND_HEADER_DRAGGING;
// fall through
case HDN_ENDTRACKA:
case HDN_ENDTRACKW:
if ( evtType == wxEVT_NULL )
evtType = wxEVT_COMMAND_HEADER_END_DRAG;
width = nmhdr->pitem->cxy;
break;
}
// do generate the corresponding wx event
if ( evtType != wxEVT_NULL )
{
wxHeaderCtrlEvent event(evtType, GetId());
event.SetEventObject(this);
event.SetColumn(idx);
event.SetWidth(width);
if ( GetEventHandler()->ProcessEvent(event) )
{
if ( !event.IsAllowed() )
{
// all of HDN_BEGIN{DRAG,TRACK}, HDN_TRACK and HDN_ITEMCHANGING
// interpret TRUE return value as meaning to stop the control
// default handling of the message
*result = TRUE;
}
return true;
}
}
return wxHeaderCtrlBase::MSWOnNotify(idCtrl, lParam, result);