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added virtual listctrl support

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10837 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2001-07-05 01:27:38 +00:00
parent 3abf2c720b
commit 98ec9dbebc
7 changed files with 228 additions and 174 deletions
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123
src/msw/listctrl.cpp
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@@ -29,9 +29,7 @@
#pragma hdrstop
#endif
#if wxUSE_LISTCTRL
#ifdef __WIN95__
#if wxUSE_LISTCTRL && defined(__WIN95__)
#ifndef WX_PRECOMP
#include "wx/app.h"
@@ -426,12 +424,6 @@ long wxListCtrl::ConvertToMSWStyle(long& oldStyle, long style) const
if ( style & wxLC_AUTOARRANGE )
wstyle |= LVS_AUTOARRANGE;
// Apparently, no such style (documentation wrong?)
/*
if ( style & wxLC_BUTTON )
wstyle |= LVS_BUTTON;
*/
if ( style & wxLC_NO_SORT_HEADER )
wstyle |= LVS_NOSORTHEADER;
@@ -458,6 +450,11 @@ long wxListCtrl::ConvertToMSWStyle(long& oldStyle, long style) const
wstyle |= LVS_SORTDESCENDING;
}
if ( style & wxLC_VIRTUAL )
{
wstyle |= LVS_OWNERDATA;
}
return wstyle;
}
@@ -1191,6 +1188,8 @@ long wxListCtrl::HitTest(const wxPoint& point, int& flags)
// -1 otherwise.
long wxListCtrl::InsertItem(wxListItem& info)
{
wxASSERT_MSG( !IsVirtual(), _T("can't be used with virtual controls") );
LV_ITEM item;
wxConvertToMSWListItem(this, info, item);
@@ -1454,24 +1453,6 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
}
break;
case LVN_GETDISPINFO:
// this provokes stack overflow: indeed, wxConvertFromMSWListItem()
// sends us WM_NOTIFY! As it doesn't do anything for now, just leave
// it out.
#if 0
{
// TODO: some text buffering here, I think
// TODO: API for getting Windows to retrieve values
// on demand.
eventType = wxEVT_COMMAND_LIST_GET_INFO;
LV_DISPINFO *info = (LV_DISPINFO *)lParam;
wxConvertFromMSWListItem(this, event.m_item, info->item, GetHwnd());
break;
}
#endif // 0
return FALSE;
case LVN_INSERTITEM:
eventType = wxEVT_COMMAND_LIST_INSERT_ITEM;
event.m_itemIndex = nmLV->iItem;
@@ -1687,6 +1668,34 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
// break; // can never be reached
#endif // _WIN32_IE >= 0x300
case LVN_GETDISPINFO:
if ( IsVirtual() )
{
LV_DISPINFO *info = (LV_DISPINFO *)lParam;
LV_ITEM& lvi = info->item;
long item = lvi.iItem;
if ( lvi.mask & LVIF_TEXT )
{
wxString text = OnGetItemText(item, lvi.iSubItem);
wxStrncpy(lvi.pszText, text, lvi.cchTextMax);
}
if ( lvi.mask & LVIF_IMAGE )
{
lvi.iImage = OnGetItemImage(item);
}
// a little dose of healthy paranoia: as we never use
// LVM_SETCALLBACKMASK we're not supposed to get these ones
wxASSERT_MSG( !(lvi.mask & LVIF_STATE),
_T("we don't support state callbacks yet!") );
return TRUE;
}
// fall through
default:
return wxControl::MSWOnNotify(idCtrl, lParam, result);
}
@@ -1713,20 +1722,6 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
return TRUE;
case LVN_GETDISPINFO:
{
LV_DISPINFO *info = (LV_DISPINFO *)lParam;
if ( info->item.mask & LVIF_TEXT )
{
if ( !event.m_item.m_text.IsNull() )
{
info->item.pszText = AddPool(event.m_item.m_text);
info->item.cchTextMax = wxStrlen(info->item.pszText) + 1;
}
}
// wxConvertToMSWListItem(this, event.m_item, info->item);
break;
}
case LVN_ENDLABELEDIT:
{
*result = event.IsAllowed();
@@ -1739,19 +1734,6 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
return TRUE;
}
wxChar *wxListCtrl::AddPool(const wxString& str)
{
// Remove the first element if 3 strings exist
if ( m_stringPool.Number() == 3 )
{
wxNode *node = m_stringPool.First();
delete[] (char *)node->Data();
delete node;
}
wxNode *node = m_stringPool.Add(WXSTRINGCAST str);
return (wxChar *)node->Data();
}
// Necessary for drawing hrules and vrules, if specified
void wxListCtrl::OnPaint(wxPaintEvent& event)
{
@@ -1817,6 +1799,37 @@ void wxListCtrl::OnPaint(wxPaintEvent& event)
}
}
// ----------------------------------------------------------------------------
// virtual list controls
// ----------------------------------------------------------------------------
wxString wxListCtrl::OnGetItemText(long item, long col) const
{
// this is a pure virtual function, in fact - which is not really pure
// because the controls which are not virtual don't need to implement it
wxFAIL_MSG( _T("not supposed to be called") );
return wxEmptyString;
}
int wxListCtrl::OnGetItemImage(long item) const
{
// same as above
wxFAIL_MSG( _T("not supposed to be called") );
return -1;
}
void wxListCtrl::SetItemCount(long count)
{
wxASSERT_MSG( IsVirtual(), _T("this is for virtual controls only") );
if ( !::SendMessage(GetHwnd(), LVM_SETITEMCOUNT, (WPARAM)count, 0) )
{
wxLogLastError(_T("ListView_SetItemCount"));
}
}
// ----------------------------------------------------------------------------
// wxListItem
// ----------------------------------------------------------------------------
@@ -2022,6 +2035,4 @@ wxListEvent::wxListEvent(wxEventType commandType, int id)
m_cancelled = FALSE;
}
#endif // __WIN95__
#endif // wxUSE_LISTCTRL