#endif // WX_PRECOMP
#include "wx/headerctrl.h"
+
+#ifndef wxHAS_GENERIC_HEADERCTRL
+
#include "wx/imaglist.h"
#include "wx/msw/wrapcctl.h"
#include "wx/msw/private.h"
+// from src/msw/listctrl.cpp
+extern int WXDLLIMPEXP_CORE wxMSWGetColumnClicked(NMHDR *nmhdr, POINT *ptClick);
+
// ============================================================================
// wxHeaderCtrl implementation
// ============================================================================
// wxHeaderCtrl scrolling
// ----------------------------------------------------------------------------
-// as the native control doesn't support offsetting its contents, we use a hack
-// here to make it appear correctly when the parent is scrolled: instead of
-// scrolling or repainting we simply move the control window itself
-void wxHeaderCtrl::ScrollWindow(int dx,
- int WXUNUSED_UNLESS_DEBUG(dy),
- const wxRect * WXUNUSED_UNLESS_DEBUG(rect))
+void wxHeaderCtrl::DoScrollHorz(int dx)
{
- // this doesn't make sense at all
- wxASSERT_MSG( !dy, "header window can't be scrolled vertically" );
-
- // this would actually be nice to support for "frozen" headers
- wxASSERT_MSG( !rect, "header window can't be scrolled partially" );
-
- // offset the window by the scroll increment to the left and increment its
- // width to still extend to the right boundary to compensate for it (notice
- // that dx is negative when scrolling to the right)
+ // as the native control doesn't support offsetting its contents, we use a
+ // hack here to make it appear correctly when the parent is scrolled:
+ // instead of scrolling or repainting we simply move the control window
+ // itself: to be precise, offset it by the scroll increment to the left and
+ // increment its width to still extend to the right boundary to compensate
+ // for it (notice that dx is negative when scrolling to the right)
SetSize(GetPosition().x + dx, -1, GetSize().x - dx, -1, wxSIZE_USE_EXISTING);
}
return Header_GetItemCount(GetHwnd());
}
-void wxHeaderCtrl::DoInsert(const wxHeaderColumn& col, unsigned int idx)
+void wxHeaderCtrl::DoSetCount(unsigned int count)
{
- // copy the HDITEM because we may modify it below
- HDITEM hdi = col.GetHDI();
+ unsigned n;
+
+ // first delete all old columns
+ const unsigned countOld = DoGetCount();
+ for ( n = 0; n < countOld; n++ )
+ {
+ if ( !Header_DeleteItem(GetHwnd(), 0) )
+ {
+ wxLogLastError(_T("Header_DeleteItem"));
+ }
+ }
+
+ // and add the new ones
+ for ( n = 0; n < count; n++ )
+ {
+ DoInsertItem(n);
+ }
+}
+
+void wxHeaderCtrl::DoUpdate(unsigned int idx)
+{
+ // the native control does provide Header_SetItem() but it's inconvenient
+ // to use it because it sends HDN_ITEMCHANGING messages and we'd have to
+ // arrange not to block setting the width from there and the logic would be
+ // more complicated as we'd have to reset the old values as well as setting
+ // the new ones -- so instead just recreate the column
+ Header_DeleteItem(GetHwnd(), idx);
+ DoInsertItem(idx);
+}
+
+void wxHeaderCtrl::DoInsertItem(unsigned int idx)
+{
+ const wxHeaderColumnBase& col = GetColumn(idx);
+
+ wxHDITEM hdi;
+
+ // notice that we need to store the string we use the pointer to until we
+ // pass it to the control
+ hdi.mask |= HDI_TEXT;
+ wxWxCharBuffer buf = col.GetTitle().wx_str();
+ hdi.pszText = buf.data();
+ hdi.cchTextMax = wxStrlen(buf);
const wxBitmap bmp = col.GetBitmap();
if ( bmp.IsOk() )
{
- const int bmpWidth = bmp.GetWidth(),
- bmpHeight = bmp.GetHeight();
+ hdi.mask |= HDI_IMAGE;
- if ( !m_imageList )
+ if ( bmp.IsOk() )
{
- m_imageList = new wxImageList(bmpWidth, bmpHeight);
- Header_SetImageList(GetHwnd(), GetHimagelistOf(m_imageList));
+ const int bmpWidth = bmp.GetWidth(),
+ bmpHeight = bmp.GetHeight();
+
+ if ( !m_imageList )
+ {
+ m_imageList = new wxImageList(bmpWidth, bmpHeight);
+ Header_SetImageList(GetHwnd(), GetHimagelistOf(m_imageList));
+ }
+ else // already have an image list
+ {
+ // check that all bitmaps we use have the same size
+ int imageWidth,
+ imageHeight;
+ m_imageList->GetSize(0, imageWidth, imageHeight);
+
+ wxASSERT_MSG( imageWidth == bmpWidth && imageHeight == bmpHeight,
+ "all column bitmaps must have the same size" );
+ }
+
+ m_imageList->Add(bmp);
+ hdi.iImage = m_imageList->GetImageCount() - 1;
}
- else // already have an image list
+ else // no bitmap but we still need to update the item
{
- // check that all bitmaps we use have the same size
- int imageWidth,
- imageHeight;
- m_imageList->GetSize(0, imageWidth, imageHeight);
-
- wxASSERT_MSG( imageWidth == bmpWidth && imageHeight == bmpHeight,
- "all column bitmaps must have the same size" );
+ hdi.iImage = I_IMAGENONE;
}
+ }
- m_imageList->Add(bmp);
- hdi.mask |= HDI_IMAGE;
- hdi.iImage = m_imageList->GetImageCount() - 1;
+ if ( col.GetAlignment() != wxALIGN_NOT )
+ {
+ hdi.mask |= HDI_FORMAT;
+ switch ( col.GetAlignment() )
+ {
+ case wxALIGN_LEFT:
+ hdi.fmt |= HDF_LEFT;
+ break;
+
+ case wxALIGN_CENTER:
+ case wxALIGN_CENTER_HORIZONTAL:
+ hdi.fmt |= HDF_CENTER;
+ break;
+
+ case wxALIGN_RIGHT:
+ hdi.fmt |= HDF_RIGHT;
+ break;
+
+ default:
+ wxFAIL_MSG( "invalid column header alignment" );
+ }
}
- if ( col.IsHidden() )
+ if ( col.IsSortKey() )
{
- hdi.mask |= HDI_WIDTH;
- hdi.cxy = 0;
+ hdi.mask |= HDI_FORMAT;
+ hdi.fmt |= col.IsSortOrderAscending() ? HDF_SORTUP : HDF_SORTDOWN;
}
- if ( Header_InsertItem(GetHwnd(), idx, &hdi) == -1 )
+ if ( col.GetWidth() != wxCOL_WIDTH_DEFAULT || col.IsHidden() )
{
- wxLogLastError(_T("Header_InsertItem"));
+ hdi.mask |= HDI_WIDTH;
+ hdi.cxy = col.IsHidden() ? 0 : col.GetWidth();
}
-}
-void wxHeaderCtrl::DoDelete(unsigned int idx)
-{
- if ( !Header_DeleteItem(GetHwnd(), idx) )
+ if ( ::SendMessage(GetHwnd(), HDM_INSERTITEM, idx, (LPARAM)&hdi) == -1 )
{
- wxLogLastError(_T("Header_DeleteItem"));
+ wxLogLastError(_T("Header_InsertItem()"));
}
}
// ----------------------------------------------------------------------------
-// wxHeaderCtrl columns attributes
+// wxHeaderCtrl events
// ----------------------------------------------------------------------------
-void wxHeaderCtrl::DoShowColumn(unsigned int idx, bool show)
+wxEventType wxHeaderCtrl::GetClickEventType(bool dblclk, int button)
{
- wxHDITEM hdi;
- hdi.mask = HDI_WIDTH;
-
- if ( !Header_GetItem(GetHwnd(), idx, &hdi) )
+ wxEventType evtType;
+ switch ( button )
{
- wxLogLastError(_T("Header_GetItem(HDI_WIDTH)"));
- return;
+ case 0:
+ evtType = dblclk ? wxEVT_COMMAND_HEADER_DCLICK
+ : wxEVT_COMMAND_HEADER_CLICK;
+ break;
+
+ case 1:
+ evtType = dblclk ? wxEVT_COMMAND_HEADER_RIGHT_DCLICK
+ : wxEVT_COMMAND_HEADER_RIGHT_CLICK;
+ break;
+
+ case 2:
+ evtType = dblclk ? wxEVT_COMMAND_HEADER_MIDDLE_DCLICK
+ : wxEVT_COMMAND_HEADER_MIDDLE_CLICK;
+ break;
+
+ default:
+ wxFAIL_MSG( wxS("unexpected event type") );
+ evtType = wxEVT_NULL;
}
- if ( show )
- hdi.cxy = 80; // FIXME: we don't have the column width here any more
- else
- hdi.cxy = 0;
-
- if ( !Header_SetItem(GetHwnd(), idx, &hdi) )
- {
- wxLogLastError(_T("Header_SetItem(HDI_WIDTH)"));
- return;
- }
+ return evtType;
}
-void wxHeaderCtrl::DoShowSortIndicator(unsigned int idx, int sortOrder)
+bool wxHeaderCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
{
- wxHDITEM hdi;
- hdi.mask = HDI_FORMAT;
-
- if ( !Header_GetItem(GetHwnd(), idx, &hdi) )
+ NMHEADER * const nmhdr = (NMHEADER *)lParam;
+
+ wxEventType evtType = wxEVT_NULL;
+ int idx = nmhdr->iItem;
+ int width = 0;
+ bool cancelled = false;
+ const UINT code = nmhdr->hdr.code;
+ switch ( code )
{
- wxLogLastError(_T("Header_GetItem(HDI_FORMAT)"));
- return;
+ // click events
+ // ------------
+
+ case HDN_ITEMCLICK:
+ case HDN_ITEMDBLCLICK:
+ evtType = GetClickEventType(code == HDN_ITEMDBLCLICK, nmhdr->iButton);
+ break;
+
+ // although we should get the notifications about the right clicks
+ // via HDN_ITEM[DBL]CLICK too according to MSDN this simply doesn't
+ // happen in practice on any Windows system up to 2003
+ case NM_RCLICK:
+ case NM_RDBLCLK:
+ {
+ POINT pt;
+ 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:
+ 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:
+ // non-resizeable columns can't be resized no matter what, don't
+ // even generate any events for them
+ if ( !GetColumn(idx).IsResizeable() )
+ {
+ *result = TRUE;
+
+ return true;
+ }
+
+ evtType = wxEVT_COMMAND_HEADER_BEGIN_RESIZE;
+ // fall through
+
+ case HDN_TRACKA:
+ case HDN_TRACKW:
+ if ( evtType == wxEVT_NULL )
+ evtType = wxEVT_COMMAND_HEADER_RESIZING;
+ // fall through
+
+ case HDN_ENDTRACKA:
+ case HDN_ENDTRACKW:
+ width = nmhdr->pitem->cxy;
+
+ if ( evtType == wxEVT_NULL )
+ {
+ evtType = wxEVT_COMMAND_HEADER_END_RESIZE;
+
+ // don't generate events with invalid width
+ const int minWidth = GetColumn(idx).GetMinWidth();
+ if ( width < minWidth )
+ width = minWidth;
+ }
+ break;
+
+ case HDN_ITEMCHANGING:
+ if ( nmhdr->pitem && (nmhdr->pitem->mask & HDI_WIDTH) )
+ {
+ // prevent the column from being shrunk beneath its min width
+ if ( nmhdr->pitem->cxy < GetColumn(idx).GetMinWidth() )
+ {
+ *result = TRUE;
+
+ return true;
+ }
+ }
+ break;
+
+ case NM_RELEASEDCAPTURE:
+ cancelled = true;
+ break;
}
- if ( sortOrder == -1 )
- hdi.fmt &= ~(HDF_SORTDOWN | HDF_SORTUP);
- else
- hdi.fmt |= sortOrder ? HDF_SORTUP : HDF_SORTDOWN;
- if ( !Header_SetItem(GetHwnd(), idx, &hdi) )
+ // do generate the corresponding wx event
+ if ( evtType != wxEVT_NULL )
{
- wxLogLastError(_T("Header_SetItem(HDI_FORMAT)"));
+ wxHeaderCtrlEvent event(evtType, GetId());
+ event.SetEventObject(this);
+ event.SetColumn(idx);
+ event.SetWidth(width);
+ if ( cancelled )
+ event.SetCancelled();
+
+ 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);
}
+#endif // wxHAS_GENERIC_HEADERCTRL
projects / wxWidgets.git / blobdiff