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5205e26b9bc6fd6df5a817fe198b671d388f46b4
wxWidgets/src/msw/listctrl.cpp
Vadim Zeitlin 5205e26b9b show first item added with InsertItem() correctly (part of patch 833247) 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@25557 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2004-02-07 14:31:29 +00:00

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/////////////////////////////////////////////////////////////////////////////
// Name: src/msw/listctrl.cpp
// Purpose: wxListCtrl
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "listctrl.h"
#pragma implementation "listctrlbase.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#if wxUSE_LISTCTRL && defined(__WIN95__)
#ifndef WX_PRECOMP
#include "wx/app.h"
#include "wx/intl.h"
#include "wx/log.h"
#include "wx/settings.h"
#endif
#include "wx/textctrl.h"
#include "wx/imaglist.h"
#include "wx/listctrl.h"
#include "wx/dcclient.h"
#include "wx/msw/private.h"
#if defined(__WXWINCE__)
#include <ole2.h>
#include <shellapi.h>
#if _WIN32_WCE < 400
#include <aygshell.h>
#endif
#endif
// include <commctrl.h> "properly"
#include "wx/msw/wrapcctl.h"
// ----------------------------------------------------------------------------
// private functions
// ----------------------------------------------------------------------------
// convert our state and mask flags to LV_ITEM constants
static void wxConvertToMSWFlags(long state, long mask, LV_ITEM& lvItem);
// convert wxListItem to LV_ITEM
static void wxConvertToMSWListItem(const wxListCtrl *ctrl,
const wxListItem& info, LV_ITEM& lvItem);
// convert LV_ITEM to wxListItem
static void wxConvertFromMSWListItem(HWND hwndListCtrl,
wxListItem& info,
/* const */ LV_ITEM& lvItem);
// convert our wxListItem to LV_COLUMN
static void wxConvertToMSWListCol(int col, const wxListItem& item,
LV_COLUMN& lvCol);
// ----------------------------------------------------------------------------
// private helper classes
// ----------------------------------------------------------------------------
// We have to handle both fooW and fooA notifications in several cases
// because of broken comctl32.dll and/or unicows.dll. This class is used to
// convert LV_ITEMA and LV_ITEMW to LV_ITEM (which is either LV_ITEMA or
// LV_ITEMW depending on wxUSE_UNICODE setting), so that it can be processed
// by wxConvertToMSWListItem().
#if wxUSE_UNICODE
#define LV_ITEM_NATIVE LV_ITEMW
#define LV_ITEM_OTHER LV_ITEMA
#define LV_CONV_TO_WX cMB2WX
#define LV_CONV_BUF wxMB2WXbuf
#else // ANSI
#define LV_ITEM_NATIVE LV_ITEMA
#define LV_ITEM_OTHER LV_ITEMW
#define LV_CONV_TO_WX cWC2WX
#define LV_CONV_BUF wxWC2WXbuf
#endif // Unicode/ANSI
class wxLV_ITEM
{
public:
// default ctor, use Init() later
wxLV_ITEM() { m_buf = NULL; m_pItem = NULL; }
// init without conversion
void Init(LV_ITEM_NATIVE& item)
{
wxASSERT_MSG( !m_pItem, _T("Init() called twice?") );
m_pItem = &item;
}
// init with conversion
void Init(LV_ITEM_OTHER& item)
{
// avoid unnecessary dynamic memory allocation, jjust make m_pItem
// point to our own m_item
// memcpy() can't work if the struct sizes are different
wxCOMPILE_TIME_ASSERT( sizeof(LV_ITEM_OTHER) == sizeof(LV_ITEM_NATIVE),
CodeCantWorkIfDiffSizes);
memcpy(&m_item, &item, sizeof(LV_ITEM_NATIVE));
// convert text from ANSI to Unicod if necessary
if ( (item.mask & LVIF_TEXT) && item.pszText )
{
m_buf = new LV_CONV_BUF(wxConvLocal.LV_CONV_TO_WX(item.pszText));
m_item.pszText = (wxChar *)m_buf->data();
}
}
// ctor without conversion
wxLV_ITEM(LV_ITEM_NATIVE& item) : m_buf(NULL), m_pItem(&item) { }
// ctor with conversion
wxLV_ITEM(LV_ITEM_OTHER& item) : m_buf(NULL)
{
Init(item);
}
~wxLV_ITEM() { delete m_buf; }
// conversion to the real LV_ITEM
operator LV_ITEM_NATIVE&() const { return *m_pItem; }
private:
LV_CONV_BUF *m_buf;
LV_ITEM_NATIVE *m_pItem;
LV_ITEM_NATIVE m_item;
DECLARE_NO_COPY_CLASS(wxLV_ITEM)
};
///////////////////////////////////////////////////////
// Problem:
// The MSW version had problems with SetTextColour() et
// al as the wxListItemAttr's were stored keyed on the
// item index. If a item was inserted anywhere but the end
// of the list the the text attributes (colour etc) for
// the following items were out of sync.
//
// Solution:
// Under MSW the only way to associate data with a List
// item independant of its position in the list is to
// store a pointer to it in its lParam attribute. However
// user programs are already using this (via the
// SetItemData() GetItemData() calls).
//
// However what we can do is store a pointer to a
// structure which contains the attributes we want *and*
// a lParam for the users data, e.g.
//
// class wxListItemInternalData
// {
// public:
// wxListItemAttr *attr;
// long lParam; // user data
// };
//
// To conserve memory, a wxListItemInternalData is
// only allocated for a LV_ITEM if text attributes or
// user data(lparam) are being set.
// class wxListItemInternalData
class wxListItemInternalData
{
public:
wxListItemAttr *attr;
LPARAM lParam; // user data
wxListItemInternalData() : attr(NULL), lParam(0) {}
~wxListItemInternalData()
{
if (attr)
delete attr;
};
DECLARE_NO_COPY_CLASS(wxListItemInternalData)
};
// Get the internal data structure
static wxListItemInternalData *wxGetInternalData(HWND hwnd, long itemId);
static wxListItemInternalData *wxGetInternalData(wxListCtrl *ctl, long itemId);
static wxListItemAttr *wxGetInternalDataAttr(wxListCtrl *ctl, long itemId);
static void wxDeleteInternalData(wxListCtrl* ctl, long itemId);
// ----------------------------------------------------------------------------
// events
// ----------------------------------------------------------------------------
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_BEGIN_DRAG)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_BEGIN_RDRAG)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_END_LABEL_EDIT)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_DELETE_ITEM)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_DELETE_ALL_ITEMS)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_GET_INFO)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_SET_INFO)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_SELECTED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_DESELECTED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_KEY_DOWN)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_INSERT_ITEM)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_CLICK)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_RIGHT_CLICK)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_BEGIN_DRAG)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_DRAGGING)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_COL_END_DRAG)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_MIDDLE_CLICK)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_ACTIVATED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_ITEM_FOCUSED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_LIST_CACHE_HINT)
#if wxUSE_EXTENDED_RTTI
WX_DEFINE_FLAGS( wxListCtrlStyle )
wxBEGIN_FLAGS( wxListCtrlStyle )
// new style border flags, we put them first to
// use them for streaming out
wxFLAGS_MEMBER(wxBORDER_SIMPLE)
wxFLAGS_MEMBER(wxBORDER_SUNKEN)
wxFLAGS_MEMBER(wxBORDER_DOUBLE)
wxFLAGS_MEMBER(wxBORDER_RAISED)
wxFLAGS_MEMBER(wxBORDER_STATIC)
wxFLAGS_MEMBER(wxBORDER_NONE)
// old style border flags
wxFLAGS_MEMBER(wxSIMPLE_BORDER)
wxFLAGS_MEMBER(wxSUNKEN_BORDER)
wxFLAGS_MEMBER(wxDOUBLE_BORDER)
wxFLAGS_MEMBER(wxRAISED_BORDER)
wxFLAGS_MEMBER(wxSTATIC_BORDER)
wxFLAGS_MEMBER(wxBORDER)
// standard window styles
wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
wxFLAGS_MEMBER(wxCLIP_CHILDREN)
wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
wxFLAGS_MEMBER(wxWANTS_CHARS)
wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
wxFLAGS_MEMBER(wxVSCROLL)
wxFLAGS_MEMBER(wxHSCROLL)
wxFLAGS_MEMBER(wxLC_LIST)
wxFLAGS_MEMBER(wxLC_REPORT)
wxFLAGS_MEMBER(wxLC_ICON)
wxFLAGS_MEMBER(wxLC_SMALL_ICON)
wxFLAGS_MEMBER(wxLC_ALIGN_TOP)
wxFLAGS_MEMBER(wxLC_ALIGN_LEFT)
wxFLAGS_MEMBER(wxLC_AUTOARRANGE)
wxFLAGS_MEMBER(wxLC_USER_TEXT)
wxFLAGS_MEMBER(wxLC_EDIT_LABELS)
wxFLAGS_MEMBER(wxLC_NO_HEADER)
wxFLAGS_MEMBER(wxLC_SINGLE_SEL)
wxFLAGS_MEMBER(wxLC_SORT_ASCENDING)
wxFLAGS_MEMBER(wxLC_SORT_DESCENDING)
wxFLAGS_MEMBER(wxLC_VIRTUAL)
wxEND_FLAGS( wxListCtrlStyle )
IMPLEMENT_DYNAMIC_CLASS_XTI(wxListCtrl, wxControl,"wx/listctrl.h")
wxBEGIN_PROPERTIES_TABLE(wxListCtrl)
wxEVENT_PROPERTY( TextUpdated , wxEVT_COMMAND_TEXT_UPDATED , wxCommandEvent )
wxPROPERTY_FLAGS( WindowStyle , wxListCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
wxEND_PROPERTIES_TABLE()
wxBEGIN_HANDLERS_TABLE(wxListCtrl)
wxEND_HANDLERS_TABLE()
wxCONSTRUCTOR_5( wxListCtrl , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
/*
TODO : Expose more information of a list's layout etc. via appropriate objects (<28> la NotebookPageInfo)
*/
#else
IMPLEMENT_DYNAMIC_CLASS(wxListCtrl, wxControl)
#endif
IMPLEMENT_DYNAMIC_CLASS(wxListView, wxListCtrl)
IMPLEMENT_DYNAMIC_CLASS(wxListItem, wxObject)
IMPLEMENT_DYNAMIC_CLASS(wxListEvent, wxNotifyEvent)
BEGIN_EVENT_TABLE(wxListCtrl, wxControl)
EVT_PAINT(wxListCtrl::OnPaint)
END_EVENT_TABLE()
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// wxListCtrl construction
// ----------------------------------------------------------------------------
void wxListCtrl::Init()
{
m_imageListNormal = NULL;
m_imageListSmall = NULL;
m_imageListState = NULL;
m_ownsImageListNormal = m_ownsImageListSmall = m_ownsImageListState = FALSE;
m_baseStyle = 0;
m_colCount = 0;
m_count = 0;
m_ignoreChangeMessages = FALSE;
m_textCtrl = NULL;
m_AnyInternalData = FALSE;
m_hasAnyAttr = FALSE;
}
bool wxListCtrl::Create(wxWindow *parent,
wxWindowID id,
const wxPoint& pos,
const wxSize& size,
long style,
const wxValidator& wxVALIDATOR_PARAM(validator),
const wxString& name)
{
#if wxUSE_VALIDATORS
SetValidator(validator);
#endif // wxUSE_VALIDATORS
SetName(name);
int x = pos.x;
int y = pos.y;
int width = size.x;
int height = size.y;
m_windowStyle = style;
SetParent(parent);
if (width <= 0)
width = 100;
if (height <= 0)
height = 30;
if (x < 0)
x = 0;
if (y < 0)
y = 0;
m_windowId = (id == -1) ? NewControlId() : id;
DWORD wstyle = WS_VISIBLE | WS_CHILD | WS_TABSTOP |
LVS_SHAREIMAGELISTS | LVS_SHOWSELALWAYS;
m_baseStyle = wstyle;
if ( !DoCreateControl(x, y, width, height) )
return FALSE;
if (parent)
parent->AddChild(this);
return TRUE;
}
bool wxListCtrl::DoCreateControl(int x, int y, int w, int h)
{
DWORD wstyle = m_baseStyle;
WXDWORD exStyle = 0;
WXDWORD standardStyle = MSWGetStyle(GetWindowStyle(), & exStyle) ;
long oldStyle = 0; // Dummy
wstyle |= ConvertToMSWStyle(oldStyle, m_windowStyle);
wstyle |= standardStyle;
// Create the ListView control.
m_hWnd = (WXHWND)CreateWindowEx(exStyle,
WC_LISTVIEW,
wxEmptyString,
wstyle,
x, y, w, h,
GetWinHwnd(GetParent()),
(HMENU)m_windowId,
wxGetInstance(),
NULL);
if ( !m_hWnd )
{
wxLogError(_("Can't create list control window, check that comctl32.dll is installed."));
return FALSE;
}
// explicitly say that we want to use Unicode because otherwise we get ANSI
// versions of _some_ messages (notably LVN_GETDISPINFOA) in MSLU build
#if wxUSE_UNICODE
::SendMessage(GetHwnd(), LVM_SETUNICODEFORMAT, TRUE, 0);
#endif
// for comctl32.dll v 4.70+ we want to have this attribute because it's
// prettier (and also because wxGTK does it like this)
if ( (wstyle & LVS_REPORT) && wxTheApp->GetComCtl32Version() >= 470 )
{
::SendMessage(GetHwnd(), LVM_SETEXTENDEDLISTVIEWSTYLE,
0, LVS_EX_FULLROWSELECT);
}
SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
SetForegroundColour(GetParent()->GetForegroundColour());
SubclassWin(m_hWnd);
return TRUE;
}
void wxListCtrl::UpdateStyle()
{
if ( GetHWND() )
{
// The new window view style
long dummy;
DWORD dwStyleNew = ConvertToMSWStyle(dummy, m_windowStyle);
dwStyleNew |= m_baseStyle;
// Get the current window style.
DWORD dwStyleOld = ::GetWindowLong(GetHwnd(), GWL_STYLE);
// Only set the window style if the view bits have changed.
if ( dwStyleOld != dwStyleNew )
{
::SetWindowLong(GetHwnd(), GWL_STYLE, dwStyleNew);
}
}
}
void wxListCtrl::FreeAllInternalData()
{
if (m_AnyInternalData)
{
int n = GetItemCount();
int i = 0;
m_ignoreChangeMessages = TRUE;
for (i = 0; i < n; i++)
wxDeleteInternalData(this, i);
m_ignoreChangeMessages = FALSE;
m_AnyInternalData = FALSE;
}
}
wxListCtrl::~wxListCtrl()
{
FreeAllInternalData();
if ( m_textCtrl )
{
m_textCtrl->UnsubclassWin();
m_textCtrl->SetHWND(0);
delete m_textCtrl;
m_textCtrl = NULL;
}
if (m_ownsImageListNormal) delete m_imageListNormal;
if (m_ownsImageListSmall) delete m_imageListSmall;
if (m_ownsImageListState) delete m_imageListState;
}
// ----------------------------------------------------------------------------
// set/get/change style
// ----------------------------------------------------------------------------
// Add or remove a single window style
void wxListCtrl::SetSingleStyle(long style, bool add)
{
long flag = GetWindowStyleFlag();
// Get rid of conflicting styles
if ( add )
{
if ( style & wxLC_MASK_TYPE)
flag = flag & ~wxLC_MASK_TYPE;
if ( style & wxLC_MASK_ALIGN )
flag = flag & ~wxLC_MASK_ALIGN;
if ( style & wxLC_MASK_SORT )
flag = flag & ~wxLC_MASK_SORT;
}
if ( flag & style )
{
if ( !add )
flag -= style;
}
else
{
if ( add )
{
flag |= style;
}
}
m_windowStyle = flag;
UpdateStyle();
}
// Set the whole window style
void wxListCtrl::SetWindowStyleFlag(long flag)
{
m_windowStyle = flag;
UpdateStyle();
}
// Can be just a single style, or a bitlist
long wxListCtrl::ConvertToMSWStyle(long& oldStyle, long style) const
{
long wstyle = 0;
if ( style & wxLC_ICON )
{
if ( (oldStyle & LVS_TYPEMASK) == LVS_SMALLICON )
oldStyle -= LVS_SMALLICON;
if ( (oldStyle & LVS_TYPEMASK) == LVS_REPORT )
oldStyle -= LVS_REPORT;
if ( (oldStyle & LVS_TYPEMASK) == LVS_LIST )
oldStyle -= LVS_LIST;
wstyle |= LVS_ICON;
}
if ( style & wxLC_SMALL_ICON )
{
if ( (oldStyle & LVS_TYPEMASK) == LVS_ICON )
oldStyle -= LVS_ICON;
if ( (oldStyle & LVS_TYPEMASK) == LVS_REPORT )
oldStyle -= LVS_REPORT;
if ( (oldStyle & LVS_TYPEMASK) == LVS_LIST )
oldStyle -= LVS_LIST;
wstyle |= LVS_SMALLICON;
}
if ( style & wxLC_LIST )
{
if ( (oldStyle & LVS_TYPEMASK) == LVS_ICON )
oldStyle -= LVS_ICON;
if ( (oldStyle & LVS_TYPEMASK) == LVS_REPORT )
oldStyle -= LVS_REPORT;
if ( (oldStyle & LVS_TYPEMASK) == LVS_SMALLICON )
oldStyle -= LVS_SMALLICON;
wstyle |= LVS_LIST;
}
if ( style & wxLC_REPORT )
{
if ( (oldStyle & LVS_TYPEMASK) == LVS_ICON )
oldStyle -= LVS_ICON;
if ( (oldStyle & LVS_TYPEMASK) == LVS_LIST )
oldStyle -= LVS_LIST;
if ( (oldStyle & LVS_TYPEMASK) == LVS_SMALLICON )
oldStyle -= LVS_SMALLICON;
wstyle |= LVS_REPORT;
}
if ( style & wxLC_ALIGN_LEFT )
{
if ( oldStyle & LVS_ALIGNTOP )
oldStyle -= LVS_ALIGNTOP;
wstyle |= LVS_ALIGNLEFT;
}
if ( style & wxLC_ALIGN_TOP )
{
if ( oldStyle & LVS_ALIGNLEFT )
oldStyle -= LVS_ALIGNLEFT;
wstyle |= LVS_ALIGNTOP;
}
if ( style & wxLC_AUTOARRANGE )
wstyle |= LVS_AUTOARRANGE;
if ( style & wxLC_NO_SORT_HEADER )
wstyle |= LVS_NOSORTHEADER;
if ( style & wxLC_NO_HEADER )
wstyle |= LVS_NOCOLUMNHEADER;
if ( style & wxLC_EDIT_LABELS )
wstyle |= LVS_EDITLABELS;
if ( style & wxLC_SINGLE_SEL )
wstyle |= LVS_SINGLESEL;
if ( style & wxLC_SORT_ASCENDING )
{
if ( oldStyle & LVS_SORTDESCENDING )
oldStyle -= LVS_SORTDESCENDING;
wstyle |= LVS_SORTASCENDING;
}
if ( style & wxLC_SORT_DESCENDING )
{
if ( oldStyle & LVS_SORTASCENDING )
oldStyle -= LVS_SORTASCENDING;
wstyle |= LVS_SORTDESCENDING;
}
#if !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 0 ) )
if ( style & wxLC_VIRTUAL )
{
int ver = wxTheApp->GetComCtl32Version();
if ( ver < 470 )
{
wxLogWarning(_("Please install a newer version of comctl32.dll\n(at least version 4.70 is required but you have %d.%02d)\nor this program won't operate correctly."),
ver / 100, ver % 100);
}
wstyle |= LVS_OWNERDATA;
}
#endif
return wstyle;
}
// ----------------------------------------------------------------------------
// accessors
// ----------------------------------------------------------------------------
// Sets the foreground, i.e. text, colour
bool wxListCtrl::SetForegroundColour(const wxColour& col)
{
if ( !wxWindow::SetForegroundColour(col) )
return FALSE;
ListView_SetTextColor(GetHwnd(), wxColourToRGB(col));
return TRUE;
}
// Sets the background colour
bool wxListCtrl::SetBackgroundColour(const wxColour& col)
{
if ( !wxWindow::SetBackgroundColour(col) )
return FALSE;
// we set the same colour for both the "empty" background and the items
// background
COLORREF color = wxColourToRGB(col);
ListView_SetBkColor(GetHwnd(), color);
ListView_SetTextBkColor(GetHwnd(), color);
return TRUE;
}
// Gets information about this column
bool wxListCtrl::GetColumn(int col, wxListItem& item) const
{
LV_COLUMN lvCol;
wxZeroMemory(lvCol);
lvCol.mask = LVCF_WIDTH;
if ( item.m_mask & wxLIST_MASK_TEXT )
{
lvCol.mask |= LVCF_TEXT;
lvCol.pszText = new wxChar[513];
lvCol.cchTextMax = 512;
}
if ( item.m_mask & wxLIST_MASK_FORMAT )
{
lvCol.mask |= LVCF_FMT;
}
if ( item.m_mask & wxLIST_MASK_IMAGE )
{
lvCol.mask |= LVCF_IMAGE;
}
bool success = ListView_GetColumn(GetHwnd(), col, &lvCol) != 0;
// item.m_subItem = lvCol.iSubItem;
item.m_width = lvCol.cx;
if ( (item.m_mask & wxLIST_MASK_TEXT) && lvCol.pszText )
{
item.m_text = lvCol.pszText;
delete[] lvCol.pszText;
}
if ( item.m_mask & wxLIST_MASK_FORMAT )
{
switch (lvCol.fmt & LVCFMT_JUSTIFYMASK) {
case LVCFMT_LEFT:
item.m_format = wxLIST_FORMAT_LEFT;
break;
case LVCFMT_RIGHT:
item.m_format = wxLIST_FORMAT_RIGHT;
break;
case LVCFMT_CENTER:
item.m_format = wxLIST_FORMAT_CENTRE;
break;
default:
item.m_format = -1; // Unknown?
break;
}
}
// the column images were not supported in older versions but how to check
// for this? we can't use _WIN32_IE because we always define it to a very
// high value, so see if another symbol which is only defined starting from
// comctl32.dll 4.70 is available
#ifdef NM_CUSTOMDRAW // _WIN32_IE >= 0x0300
if ( item.m_mask & wxLIST_MASK_IMAGE )
{
item.m_image = lvCol.iImage;
}
#endif // LVCOLUMN::iImage exists
return success;
}
// Sets information about this column
bool wxListCtrl::SetColumn(int col, wxListItem& item)
{
LV_COLUMN lvCol;
wxConvertToMSWListCol(col, item, lvCol);
return ListView_SetColumn(GetHwnd(), col, &lvCol) != 0;
}
// Gets the column width
int wxListCtrl::GetColumnWidth(int col) const
{
return ListView_GetColumnWidth(GetHwnd(), col);
}
// Sets the column width
bool wxListCtrl::SetColumnWidth(int col, int width)
{
int col2 = col;
if ( m_windowStyle & wxLC_LIST )
col2 = -1;
int width2 = width;
if ( width2 == wxLIST_AUTOSIZE)
width2 = LVSCW_AUTOSIZE;
else if ( width2 == wxLIST_AUTOSIZE_USEHEADER)
width2 = LVSCW_AUTOSIZE_USEHEADER;
return ListView_SetColumnWidth(GetHwnd(), col2, width2) != 0;
}
// Gets the number of items that can fit vertically in the
// visible area of the list control (list or report view)
// or the total number of items in the list control (icon
// or small icon view)
int wxListCtrl::GetCountPerPage() const
{
return ListView_GetCountPerPage(GetHwnd());
}
// Gets the edit control for editing labels.
wxTextCtrl* wxListCtrl::GetEditControl() const
{
return m_textCtrl;
}
// Gets information about the item
bool wxListCtrl::GetItem(wxListItem& info) const
{
LV_ITEM lvItem;
wxZeroMemory(lvItem);
lvItem.iItem = info.m_itemId;
lvItem.iSubItem = info.m_col;
if ( info.m_mask & wxLIST_MASK_TEXT )
{
lvItem.mask |= LVIF_TEXT;
lvItem.pszText = new wxChar[513];
lvItem.cchTextMax = 512;
}
else
{
lvItem.pszText = NULL;
}
if (info.m_mask & wxLIST_MASK_DATA)
lvItem.mask |= LVIF_PARAM;
if (info.m_mask & wxLIST_MASK_IMAGE)
lvItem.mask |= LVIF_IMAGE;
if ( info.m_mask & wxLIST_MASK_STATE )
{
lvItem.mask |= LVIF_STATE;
// the other bits are hardly interesting anyhow
lvItem.stateMask = LVIS_SELECTED | LVIS_FOCUSED;
}
bool success = ListView_GetItem((HWND)GetHWND(), &lvItem) != 0;
if ( !success )
{
wxLogError(_("Couldn't retrieve information about list control item %d."),
lvItem.iItem);
}
else
{
// give NULL as hwnd as we already have everything we need
wxConvertFromMSWListItem(NULL, info, lvItem);
}
if (lvItem.pszText)
delete[] lvItem.pszText;
return success;
}
// Sets information about the item
bool wxListCtrl::SetItem(wxListItem& info)
{
LV_ITEM item;
wxConvertToMSWListItem(this, info, item);
// we never update the lParam if it contains our pointer
// to the wxListItemInternalData structure
item.mask &= ~LVIF_PARAM;
// check if setting attributes or lParam
if (info.HasAttributes() || (info.m_mask & wxLIST_MASK_DATA))
{
// get internal item data
// perhaps a cache here ?
wxListItemInternalData *data = wxGetInternalData(this, info.m_itemId);
if (! data)
{
// need to set it
m_AnyInternalData = TRUE;
data = new wxListItemInternalData();
item.lParam = (LPARAM) data;
item.mask |= LVIF_PARAM;
};
// user data
if (info.m_mask & wxLIST_MASK_DATA)
data->lParam = info.m_data;
// attributes
if (info.HasAttributes())
{
if (data->attr)
*data->attr = *info.GetAttributes();
else
data->attr = new wxListItemAttr(*info.GetAttributes());
};
};
// we could be changing only the attribute in which case we don't need to
// call ListView_SetItem() at all
if ( item.mask )
{
item.cchTextMax = 0;
if ( !ListView_SetItem(GetHwnd(), &item) )
{
wxLogDebug(_T("ListView_SetItem() failed"));
return FALSE;
}
}
// we need to update the item immediately to show the new image
bool updateNow = (info.m_mask & wxLIST_MASK_IMAGE) != 0;
// check whether it has any custom attributes
if ( info.HasAttributes() )
{
m_hasAnyAttr = TRUE;
// if the colour has changed, we must redraw the item
updateNow = TRUE;
}
if ( updateNow )
{
// we need this to make the change visible right now
RefreshItem(item.iItem);
}
return TRUE;
}
long wxListCtrl::SetItem(long index, int col, const wxString& label, int imageId)
{
wxListItem info;
info.m_text = label;
info.m_mask = wxLIST_MASK_TEXT;
info.m_itemId = index;
info.m_col = col;
if ( imageId > -1 )
{
info.m_image = imageId;
info.m_mask |= wxLIST_MASK_IMAGE;
}
return SetItem(info);
}
// Gets the item state
int wxListCtrl::GetItemState(long item, long stateMask) const
{
wxListItem info;
info.m_mask = wxLIST_MASK_STATE;
info.m_stateMask = stateMask;
info.m_itemId = item;
if (!GetItem(info))
return 0;
return info.m_state;
}
// Sets the item state
bool wxListCtrl::SetItemState(long item, long state, long stateMask)
{
// NB: don't use SetItem() here as it doesn't work with the virtual list
// controls
LV_ITEM lvItem;
wxZeroMemory(lvItem);
wxConvertToMSWFlags(state, stateMask, lvItem);
// for the virtual list controls we need to refresh the previously focused
// item manually when changing focus without changing selection
// programmatically because otherwise it keeps its focus rectangle until
// next repaint (yet another comctl32 bug)
long focusOld;
if ( IsVirtual() &&
(stateMask & wxLIST_STATE_FOCUSED) &&
(state & wxLIST_STATE_FOCUSED) )
{
focusOld = GetNextItem(-1, wxLIST_NEXT_ALL, wxLIST_STATE_FOCUSED);
}
else
{
focusOld = -1;
}
if ( !::SendMessage(GetHwnd(), LVM_SETITEMSTATE,
(WPARAM)item, (LPARAM)&lvItem) )
{
wxLogLastError(_T("ListView_SetItemState"));
return FALSE;
}
if ( focusOld != -1 )
{
// no need to refresh the item if it was previously selected, it would
// only result in annoying flicker
if ( !(GetItemState(focusOld,
wxLIST_STATE_SELECTED) & wxLIST_STATE_SELECTED) )
{
RefreshItem(focusOld);
}
}
return TRUE;
}
// Sets the item image
bool wxListCtrl::SetItemImage(long item, int image, int WXUNUSED(selImage))
{
wxListItem info;
info.m_mask = wxLIST_MASK_IMAGE;
info.m_image = image;
info.m_itemId = item;
return SetItem(info);
}
// Gets the item text
wxString wxListCtrl::GetItemText(long item) const
{
wxListItem info;
info.m_mask = wxLIST_MASK_TEXT;
info.m_itemId = item;
if (!GetItem(info))
return wxEmptyString;
return info.m_text;
}
// Sets the item text
void wxListCtrl::SetItemText(long item, const wxString& str)
{
wxListItem info;
info.m_mask = wxLIST_MASK_TEXT;
info.m_itemId = item;
info.m_text = str;
SetItem(info);
}
// Gets the item data
long wxListCtrl::GetItemData(long item) const
{
wxListItem info;
info.m_mask = wxLIST_MASK_DATA;
info.m_itemId = item;
if (!GetItem(info))
return 0;
return info.m_data;
}
// Sets the item data
bool wxListCtrl::SetItemData(long item, long data)
{
wxListItem info;
info.m_mask = wxLIST_MASK_DATA;
info.m_itemId = item;
info.m_data = data;
return SetItem(info);
}
wxRect wxListCtrl::GetViewRect() const
{
wxASSERT_MSG( !HasFlag(wxLC_REPORT | wxLC_LIST),
_T("wxListCtrl::GetViewRect() only works in icon mode") );
RECT rc;
if ( !ListView_GetViewRect(GetHwnd(), &rc) )
{
wxLogDebug(_T("ListView_GetViewRect() failed."));
wxZeroMemory(rc);
}
wxRect rect;
wxCopyRECTToRect(rc, rect);
return rect;
}
// Gets the item rectangle
bool wxListCtrl::GetItemRect(long item, wxRect& rect, int code) const
{
RECT rectWin;
int codeWin;
if ( code == wxLIST_RECT_BOUNDS )
codeWin = LVIR_BOUNDS;
else if ( code == wxLIST_RECT_ICON )
codeWin = LVIR_ICON;
else if ( code == wxLIST_RECT_LABEL )
codeWin = LVIR_LABEL;
else
{
wxFAIL_MSG( _T("incorrect code in GetItemRect()") );
codeWin = LVIR_BOUNDS;
}
bool success = ListView_GetItemRect(GetHwnd(), (int) item, &rectWin, codeWin) != 0;
rect.x = rectWin.left;
rect.y = rectWin.top;
rect.width = rectWin.right - rectWin.left;
rect.height = rectWin.bottom - rectWin.top;
return success;
}
// Gets the item position
bool wxListCtrl::GetItemPosition(long item, wxPoint& pos) const
{
POINT pt;
bool success = (ListView_GetItemPosition(GetHwnd(), (int) item, &pt) != 0);
pos.x = pt.x; pos.y = pt.y;
return success;
}
// Sets the item position.
bool wxListCtrl::SetItemPosition(long item, const wxPoint& pos)
{
return (ListView_SetItemPosition(GetHwnd(), (int) item, pos.x, pos.y) != 0);
}
// Gets the number of items in the list control
int wxListCtrl::GetItemCount() const
{
return m_count;
}
wxSize wxListCtrl::GetItemSpacing() const
{
const int spacing = ListView_GetItemSpacing(GetHwnd(), (BOOL)HasFlag(wxLC_SMALL_ICON));
return wxSize(LOWORD(spacing), HIWORD(spacing));
}
int wxListCtrl::GetItemSpacing(bool isSmall) const
{
return ListView_GetItemSpacing(GetHwnd(), (BOOL) isSmall);
}
void wxListCtrl::SetItemTextColour( long item, const wxColour &col )
{
wxListItem info;
info.m_itemId = item;
info.SetTextColour( col );
SetItem( info );
}
wxColour wxListCtrl::GetItemTextColour( long item ) const
{
wxListItem info;
info.m_itemId = item;
GetItem( info );
return info.GetTextColour();
}
void wxListCtrl::SetItemBackgroundColour( long item, const wxColour &col )
{
wxListItem info;
info.m_itemId = item;
info.SetBackgroundColour( col );
SetItem( info );
}
wxColour wxListCtrl::GetItemBackgroundColour( long item ) const
{
wxListItem info;
info.m_itemId = item;
GetItem( info );
return info.GetBackgroundColour();
}
// Gets the number of selected items in the list control
int wxListCtrl::GetSelectedItemCount() const
{
return ListView_GetSelectedCount(GetHwnd());
}
// Gets the text colour of the listview
wxColour wxListCtrl::GetTextColour() const
{
COLORREF ref = ListView_GetTextColor(GetHwnd());
wxColour col(GetRValue(ref), GetGValue(ref), GetBValue(ref));
return col;
}
// Sets the text colour of the listview
void wxListCtrl::SetTextColour(const wxColour& col)
{
ListView_SetTextColor(GetHwnd(), PALETTERGB(col.Red(), col.Green(), col.Blue()));
}
// Gets the index of the topmost visible item when in
// list or report view
long wxListCtrl::GetTopItem() const
{
return (long) ListView_GetTopIndex(GetHwnd());
}
// Searches for an item, starting from 'item'.
// 'geometry' is one of
// wxLIST_NEXT_ABOVE/ALL/BELOW/LEFT/RIGHT.
// 'state' is a state bit flag, one or more of
// wxLIST_STATE_DROPHILITED/FOCUSED/SELECTED/CUT.
// item can be -1 to find the first item that matches the
// specified flags.
// Returns the item or -1 if unsuccessful.
long wxListCtrl::GetNextItem(long item, int geom, int state) const
{
long flags = 0;
if ( geom == wxLIST_NEXT_ABOVE )
flags |= LVNI_ABOVE;
if ( geom == wxLIST_NEXT_ALL )
flags |= LVNI_ALL;
if ( geom == wxLIST_NEXT_BELOW )
flags |= LVNI_BELOW;
if ( geom == wxLIST_NEXT_LEFT )
flags |= LVNI_TOLEFT;
if ( geom == wxLIST_NEXT_RIGHT )
flags |= LVNI_TORIGHT;
if ( state & wxLIST_STATE_CUT )
flags |= LVNI_CUT;
if ( state & wxLIST_STATE_DROPHILITED )
flags |= LVNI_DROPHILITED;
if ( state & wxLIST_STATE_FOCUSED )
flags |= LVNI_FOCUSED;
if ( state & wxLIST_STATE_SELECTED )
flags |= LVNI_SELECTED;
return (long) ListView_GetNextItem(GetHwnd(), item, flags);
}
wxImageList *wxListCtrl::GetImageList(int which) const
{
if ( which == wxIMAGE_LIST_NORMAL )
{
return m_imageListNormal;
}
else if ( which == wxIMAGE_LIST_SMALL )
{
return m_imageListSmall;
}
else if ( which == wxIMAGE_LIST_STATE )
{
return m_imageListState;
}
return NULL;
}
void wxListCtrl::SetImageList(wxImageList *imageList, int which)
{
int flags = 0;
if ( which == wxIMAGE_LIST_NORMAL )
{
flags = LVSIL_NORMAL;
if (m_ownsImageListNormal) delete m_imageListNormal;
m_imageListNormal = imageList;
m_ownsImageListNormal = FALSE;
}
else if ( which == wxIMAGE_LIST_SMALL )
{
flags = LVSIL_SMALL;
if (m_ownsImageListSmall) delete m_imageListSmall;
m_imageListSmall = imageList;
m_ownsImageListSmall = FALSE;
}
else if ( which == wxIMAGE_LIST_STATE )
{
flags = LVSIL_STATE;
if (m_ownsImageListState) delete m_imageListState;
m_imageListState = imageList;
m_ownsImageListState = FALSE;
}
ListView_SetImageList(GetHwnd(), (HIMAGELIST) imageList ? imageList->GetHIMAGELIST() : 0, flags);
}
void wxListCtrl::AssignImageList(wxImageList *imageList, int which)
{
SetImageList(imageList, which);
if ( which == wxIMAGE_LIST_NORMAL )
m_ownsImageListNormal = TRUE;
else if ( which == wxIMAGE_LIST_SMALL )
m_ownsImageListSmall = TRUE;
else if ( which == wxIMAGE_LIST_STATE )
m_ownsImageListState = TRUE;
}
// ----------------------------------------------------------------------------
// Operations
// ----------------------------------------------------------------------------
// Arranges the items
bool wxListCtrl::Arrange(int flag)
{
UINT code = 0;
if ( flag == wxLIST_ALIGN_LEFT )
code = LVA_ALIGNLEFT;
else if ( flag == wxLIST_ALIGN_TOP )
code = LVA_ALIGNTOP;
else if ( flag == wxLIST_ALIGN_DEFAULT )
code = LVA_DEFAULT;
else if ( flag == wxLIST_ALIGN_SNAP_TO_GRID )
code = LVA_SNAPTOGRID;
return (ListView_Arrange(GetHwnd(), code) != 0);
}
// Deletes an item
bool wxListCtrl::DeleteItem(long item)
{
if ( !ListView_DeleteItem(GetHwnd(), (int) item) )
{
wxLogLastError(_T("ListView_DeleteItem"));
return FALSE;
}
m_count -= 1;
wxASSERT_MSG( m_count == ListView_GetItemCount(GetHwnd()),
wxT("m_count should match ListView_GetItemCount"));
// the virtual list control doesn't refresh itself correctly, help it
if ( IsVirtual() )
{
// we need to refresh all the lines below the one which was deleted
wxRect rectItem;
if ( item > 0 && GetItemCount() )
{
GetItemRect(item - 1, rectItem);
}
else
{
rectItem.y =
rectItem.height = 0;
}
wxRect rectWin = GetRect();
rectWin.height = rectWin.GetBottom() - rectItem.GetBottom();
rectWin.y = rectItem.GetBottom();
RefreshRect(rectWin);
}
return TRUE;
}
// Deletes all items
bool wxListCtrl::DeleteAllItems()
{
FreeAllInternalData();
return ListView_DeleteAllItems(GetHwnd()) != 0;
}
// Deletes all items
bool wxListCtrl::DeleteAllColumns()
{
while ( m_colCount > 0 )
{
if ( ListView_DeleteColumn(GetHwnd(), 0) == 0 )
{
wxLogLastError(wxT("ListView_DeleteColumn"));
return FALSE;
}
m_colCount--;
}
wxASSERT_MSG( m_colCount == 0, wxT("no columns should be left") );
return TRUE;
}
// Deletes a column
bool wxListCtrl::DeleteColumn(int col)
{
bool success = (ListView_DeleteColumn(GetHwnd(), col) != 0);
if ( success && (m_colCount > 0) )
m_colCount --;
return success;
}
// Clears items, and columns if there are any.
void wxListCtrl::ClearAll()
{
DeleteAllItems();
if ( m_colCount > 0 )
DeleteAllColumns();
}
wxTextCtrl* wxListCtrl::EditLabel(long item, wxClassInfo* textControlClass)
{
wxASSERT( (textControlClass->IsKindOf(CLASSINFO(wxTextCtrl))) );
// ListView_EditLabel requires that the list has focus.
SetFocus();
WXHWND hWnd = (WXHWND) ListView_EditLabel(GetHwnd(), item);
if ( !hWnd )
{
// failed to start editing
return NULL;
}
// [re]create the text control wrapping the HWND we got
if ( m_textCtrl )
{
m_textCtrl->UnsubclassWin();
m_textCtrl->SetHWND(0);
delete m_textCtrl;
}
m_textCtrl = (wxTextCtrl *)textControlClass->CreateObject();
m_textCtrl->SetHWND(hWnd);
m_textCtrl->SubclassWin(hWnd);
m_textCtrl->SetParent(this);
// we must disallow TABbing away from the control while the edit contol is
// shown because this leaves it in some strange state (just try removing
// this line and then pressing TAB while editing an item in listctrl
// inside a panel)
m_textCtrl->SetWindowStyle(m_textCtrl->GetWindowStyle() | wxTE_PROCESS_TAB);
return m_textCtrl;
}
// End label editing, optionally cancelling the edit
bool wxListCtrl::EndEditLabel(bool WXUNUSED(cancel))
{
wxFAIL_MSG( _T("not implemented") );
return FALSE;
}
// Ensures this item is visible
bool wxListCtrl::EnsureVisible(long item)
{
return ListView_EnsureVisible(GetHwnd(), (int) item, FALSE) != 0;
}
// Find an item whose label matches this string, starting from the item after 'start'
// or the beginning if 'start' is -1.
long wxListCtrl::FindItem(long start, const wxString& str, bool partial)
{
LV_FINDINFO findInfo;
findInfo.flags = LVFI_STRING;
if ( partial )
findInfo.flags |= LVFI_PARTIAL;
findInfo.psz = str;
// ListView_FindItem() excludes the first item from search and to look
// through all the items you need to start from -1 which is unnatural and
// inconsistent with the generic version - so we adjust the index
if (start != -1)
start --;
return ListView_FindItem(GetHwnd(), (int) start, &findInfo);
}
// Find an item whose data matches this data, starting from the item after 'start'
// or the beginning if 'start' is -1.
// NOTE : Lindsay Mathieson - 14-July-2002
// No longer use ListView_FindItem as the data attribute is now stored
// in a wxListItemInternalData structure refernced by the actual lParam
long wxListCtrl::FindItem(long start, long data)
{
long idx = start + 1;
long count = GetItemCount();
while (idx < count)
{
if (GetItemData(idx) == data)
return idx;
idx++;
};
return -1;
}
// Find an item nearest this position in the specified direction, starting from
// the item after 'start' or the beginning if 'start' is -1.
long wxListCtrl::FindItem(long start, const wxPoint& pt, int direction)
{
LV_FINDINFO findInfo;
findInfo.flags = LVFI_NEARESTXY;
findInfo.pt.x = pt.x;
findInfo.pt.y = pt.y;
findInfo.vkDirection = VK_RIGHT;
if ( direction == wxLIST_FIND_UP )
findInfo.vkDirection = VK_UP;
else if ( direction == wxLIST_FIND_DOWN )
findInfo.vkDirection = VK_DOWN;
else if ( direction == wxLIST_FIND_LEFT )
findInfo.vkDirection = VK_LEFT;
else if ( direction == wxLIST_FIND_RIGHT )
findInfo.vkDirection = VK_RIGHT;
return ListView_FindItem(GetHwnd(), (int) start, & findInfo);
}
// Determines which item (if any) is at the specified point,
// giving details in 'flags' (see wxLIST_HITTEST_... flags above)
long wxListCtrl::HitTest(const wxPoint& point, int& flags)
{
LV_HITTESTINFO hitTestInfo;
hitTestInfo.pt.x = (int) point.x;
hitTestInfo.pt.y = (int) point.y;
ListView_HitTest(GetHwnd(), & hitTestInfo);
flags = 0;
if ( hitTestInfo.flags & LVHT_ABOVE )
flags |= wxLIST_HITTEST_ABOVE;
if ( hitTestInfo.flags & LVHT_BELOW )
flags |= wxLIST_HITTEST_BELOW;
if ( hitTestInfo.flags & LVHT_NOWHERE )
flags |= wxLIST_HITTEST_NOWHERE;
if ( hitTestInfo.flags & LVHT_ONITEMICON )
flags |= wxLIST_HITTEST_ONITEMICON;
if ( hitTestInfo.flags & LVHT_ONITEMLABEL )
flags |= wxLIST_HITTEST_ONITEMLABEL;
if ( hitTestInfo.flags & LVHT_ONITEMSTATEICON )
flags |= wxLIST_HITTEST_ONITEMSTATEICON;
if ( hitTestInfo.flags & LVHT_TOLEFT )
flags |= wxLIST_HITTEST_TOLEFT;
if ( hitTestInfo.flags & LVHT_TORIGHT )
flags |= wxLIST_HITTEST_TORIGHT;
return (long) hitTestInfo.iItem;
}
// Inserts an item, returning the index of the new item if successful,
// -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);
item.mask &= ~LVIF_PARAM;
// check wether we need to allocate our internal data
bool needInternalData = ((info.m_mask & wxLIST_MASK_DATA) || info.HasAttributes());
if (needInternalData)
{
m_AnyInternalData = TRUE;
item.mask |= LVIF_PARAM;
// internal stucture that manages data
wxListItemInternalData *data = new wxListItemInternalData();
item.lParam = (LPARAM) data;
if (info.m_mask & wxLIST_MASK_DATA)
data->lParam = info.m_data;
// check whether it has any custom attributes
if ( info.HasAttributes() )
{
// take copy of attributes
data->attr = new wxListItemAttr(*info.GetAttributes());
// and remember that we have some now...
m_hasAnyAttr = TRUE;
}
};
long rv = ListView_InsertItem(GetHwnd(), & item);
m_count++;
wxASSERT_MSG( m_count == ListView_GetItemCount(GetHwnd()),
wxT("m_count should match ListView_GetItemCount"));
return rv;
}
long wxListCtrl::InsertItem(long index, const wxString& label)
{
wxListItem info;
info.m_text = label;
info.m_mask = wxLIST_MASK_TEXT;
info.m_itemId = index;
return InsertItem(info);
}
// Inserts an image item
long wxListCtrl::InsertItem(long index, int imageIndex)
{
wxListItem info;
info.m_image = imageIndex;
info.m_mask = wxLIST_MASK_IMAGE;
info.m_itemId = index;
return InsertItem(info);
}
// Inserts an image/string item
long wxListCtrl::InsertItem(long index, const wxString& label, int imageIndex)
{
wxListItem info;
info.m_image = imageIndex;
info.m_text = label;
info.m_mask = wxLIST_MASK_IMAGE | wxLIST_MASK_TEXT;
info.m_itemId = index;
return InsertItem(info);
}
// For list view mode (only), inserts a column.
long wxListCtrl::InsertColumn(long col, wxListItem& item)
{
LV_COLUMN lvCol;
wxConvertToMSWListCol(col, item, lvCol);
if ( !(lvCol.mask & LVCF_WIDTH) )
{
// always give some width to the new column: this one is compatible
// with the generic version
lvCol.mask |= LVCF_WIDTH;
lvCol.cx = 80;
}
long n = ListView_InsertColumn(GetHwnd(), col, &lvCol);
if ( n != -1 )
{
m_colCount++;
}
else // failed to insert?
{
wxLogDebug(wxT("Failed to insert the column '%s' into listview!"),
lvCol.pszText);
}
return n;
}
long wxListCtrl::InsertColumn(long col,
const wxString& heading,
int format,
int width)
{
wxListItem item;
item.m_mask = wxLIST_MASK_TEXT | wxLIST_MASK_FORMAT;
item.m_text = heading;
if ( width > -1 )
{
item.m_mask |= wxLIST_MASK_WIDTH;
item.m_width = width;
}
item.m_format = format;
return InsertColumn(col, item);
}
// scroll the control by the given number of pixels (exception: in list view,
// dx is interpreted as number of columns)
bool wxListCtrl::ScrollList(int dx, int dy)
{
if ( !ListView_Scroll(GetHwnd(), dx, dy) )
{
wxLogDebug(_T("ListView_Scroll(%d, %d) failed"), dx, dy);
return FALSE;
}
return TRUE;
}
// Sort items.
// fn is a function which takes 3 long arguments: item1, item2, data.
// item1 is the long data associated with a first item (NOT the index).
// item2 is the long data associated with a second item (NOT the index).
// data is the same value as passed to SortItems.
// The return value is a negative number if the first item should precede the second
// item, a positive number of the second item should precede the first,
// or zero if the two items are equivalent.
// data is arbitrary data to be passed to the sort function.
// Internal structures for proxying the user compare function
// so that we can pass it the *real* user data
// translate lParam data and call user func
struct wxInternalDataSort
{
wxListCtrlCompare user_fn;
long data;
};
int CALLBACK wxInternalDataCompareFunc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
{
struct wxInternalDataSort *internalData = (struct wxInternalDataSort *) lParamSort;
wxListItemInternalData *data1 = (wxListItemInternalData *) lParam1;
wxListItemInternalData *data2 = (wxListItemInternalData *) lParam2;
long d1 = (data1 == NULL ? 0 : data1->lParam);
long d2 = (data2 == NULL ? 0 : data2->lParam);
return internalData->user_fn(d1, d2, internalData->data);
};
bool wxListCtrl::SortItems(wxListCtrlCompare fn, long data)
{
struct wxInternalDataSort internalData;
internalData.user_fn = fn;
internalData.data = data;
// WPARAM cast is needed for mingw/cygwin
if ( !ListView_SortItems(GetHwnd(),
wxInternalDataCompareFunc,
(WPARAM) &internalData) )
{
wxLogDebug(_T("ListView_SortItems() failed"));
return FALSE;
}
return TRUE;
}
// ----------------------------------------------------------------------------
// message processing
// ----------------------------------------------------------------------------
bool wxListCtrl::MSWCommand(WXUINT cmd, WXWORD id)
{
if (cmd == EN_UPDATE)
{
wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, id);
event.SetEventObject( this );
ProcessCommand(event);
return TRUE;
}
else if (cmd == EN_KILLFOCUS)
{
wxCommandEvent event(wxEVT_KILL_FOCUS, id);
event.SetEventObject( this );
ProcessCommand(event);
return TRUE;
}
else
return FALSE;
}
bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
{
// prepare the event
// -----------------
wxListEvent event(wxEVT_NULL, m_windowId);
event.SetEventObject(this);
wxEventType eventType = wxEVT_NULL;
NMHDR *nmhdr = (NMHDR *)lParam;
// if your compiler is as broken as this, you should really change it: this
// code is needed for normal operation! #ifdef below is only useful for
// automatic rebuilds which are done with a very old compiler version
#ifdef HDN_BEGINTRACKA
// check for messages from the header (in report view)
HWND hwndHdr = ListView_GetHeader(GetHwnd());
// is it a message from the header?
if ( nmhdr->hwndFrom == hwndHdr )
{
HD_NOTIFY *nmHDR = (HD_NOTIFY *)nmhdr;
event.m_itemIndex = -1;
switch ( nmhdr->code )
{
// yet another comctl32.dll bug: under NT/W2K it sends Unicode
// TRACK messages even to ANSI programs: on my system I get
// HDN_BEGINTRACKW and HDN_ENDTRACKA and no HDN_TRACK at all!
//
// work around is to simply catch both versions and hope that it
// works (why should this message exist in ANSI and Unicode is
// beyond me as it doesn't deal with strings at all...)
//
// note that fr HDN_TRACK another possibility could be to use
// HDN_ITEMCHANGING but it is sent even after HDN_ENDTRACK and when
// something other than the item width changes so we'd have to
// filter out the unwanted events then
case HDN_BEGINTRACKA:
case HDN_BEGINTRACKW:
eventType = wxEVT_COMMAND_LIST_COL_BEGIN_DRAG;
// fall through
case HDN_TRACKA:
case HDN_TRACKW:
if ( eventType == wxEVT_NULL )
eventType = wxEVT_COMMAND_LIST_COL_DRAGGING;
// fall through
case HDN_ENDTRACKA:
case HDN_ENDTRACKW:
if ( eventType == wxEVT_NULL )
eventType = wxEVT_COMMAND_LIST_COL_END_DRAG;
event.m_item.m_width = nmHDR->pitem->cxy;
event.m_col = nmHDR->iItem;
break;
#if defined(__WXWINCE__) && _WIN32_WCE < 400
case GN_CONTEXTMENU:
#endif //__WXWINCE__
case NM_RCLICK:
{
eventType = wxEVT_COMMAND_LIST_COL_RIGHT_CLICK;
event.m_col = -1;
// find the column clicked: we have to search for it
// ourselves as the notification message doesn't provide
// this info
// where did the click occur?
POINT ptClick;
#if defined(__WXWINCE__) && _WIN32_WCE < 400
if(nmhdr->code == GN_CONTEXTMENU) {
ptClick = ((NMRGINFO*)nmhdr)->ptAction;
} else
#endif //__WXWINCE__
if ( !::GetCursorPos(&ptClick) )
{
wxLogLastError(_T("GetCursorPos"));
}
if ( !::ScreenToClient(hwndHdr, &ptClick) )
{
wxLogLastError(_T("ScreenToClient(listctrl header)"));
}
event.m_pointDrag.x = ptClick.x;
event.m_pointDrag.y = ptClick.y;
int colCount = Header_GetItemCount(hwndHdr);
RECT rect;
for ( int col = 0; col < colCount; col++ )
{
if ( Header_GetItemRect(hwndHdr, col, &rect) )
{
if ( ::PtInRect(&rect, ptClick) )
{
event.m_col = col;
break;
}
}
}
}
break;
case HDN_GETDISPINFOW:
{
LPNMHDDISPINFOW info = (LPNMHDDISPINFOW) lParam;
// This is a fix for a strange bug under XP.
// Normally, info->iItem is a valid index, but
// sometimes this is a silly (large) number
// and when we return FALSE via wxControl::MSWOnNotify
// to indicate that it hasn't yet been processed,
// there's a GPF in Windows.
// By returning TRUE here, we avoid further processing
// of this strange message.
if ( info->iItem >= GetColumnCount() )
return TRUE;
}
// fall through
default:
return wxControl::MSWOnNotify(idCtrl, lParam, result);
}
}
else
#endif // defined(HDN_BEGINTRACKA)
if ( nmhdr->hwndFrom == GetHwnd() )
{
// almost all messages use NM_LISTVIEW
NM_LISTVIEW *nmLV = (NM_LISTVIEW *)nmhdr;
const int iItem = nmLV->iItem;
// FreeAllInternalData will cause LVN_ITEMCHANG* messages, which can be
// ignored for efficiency. It is done here because the internal data is in the
// process of being deleted so we don't want to try and access it below.
if ( m_ignoreChangeMessages &&
( (nmLV->hdr.code == LVN_ITEMCHANGED) || (nmLV->hdr.code == LVN_ITEMCHANGING)))
{
return TRUE;
}
// If we have a valid item then check if there is a data value
// associated with it and put it in the event.
if ( iItem >= 0 && iItem < GetItemCount() )
{
wxListItemInternalData *internaldata =
wxGetInternalData(GetHwnd(), iItem);
if ( internaldata )
event.m_item.m_data = internaldata->lParam;
}
switch ( nmhdr->code )
{
case LVN_BEGINRDRAG:
eventType = wxEVT_COMMAND_LIST_BEGIN_RDRAG;
// fall through
case LVN_BEGINDRAG:
if ( eventType == wxEVT_NULL )
{
eventType = wxEVT_COMMAND_LIST_BEGIN_DRAG;
}
event.m_itemIndex = iItem;
event.m_pointDrag.x = nmLV->ptAction.x;
event.m_pointDrag.y = nmLV->ptAction.y;
break;
// NB: we have to handle both *A and *W versions here because some
// versions of comctl32.dll send ANSI messages even to the
// Unicode windows
case LVN_BEGINLABELEDITA:
case LVN_BEGINLABELEDITW:
{
wxLV_ITEM item;
if ( nmhdr->code == LVN_BEGINLABELEDITA )
{
item.Init(((LV_DISPINFOA *)lParam)->item);
}
else // LVN_BEGINLABELEDITW
{
item.Init(((LV_DISPINFOW *)lParam)->item);
}
eventType = wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT;
wxConvertFromMSWListItem(GetHwnd(), event.m_item, item);
event.m_itemIndex = event.m_item.m_itemId;
}
break;
case LVN_ENDLABELEDITA:
case LVN_ENDLABELEDITW:
{
wxLV_ITEM item;
if ( nmhdr->code == LVN_ENDLABELEDITA )
{
item.Init(((LV_DISPINFOA *)lParam)->item);
}
else // LVN_ENDLABELEDITW
{
item.Init(((LV_DISPINFOW *)lParam)->item);
}
// was editing cancelled?
const LV_ITEM& lvi = (LV_ITEM)item;
if ( !lvi.pszText || lvi.iItem == -1 )
{
// don't keep a stale wxTextCtrl around
if ( m_textCtrl )
{
// EDIT control will be deleted by the list control itself so
// prevent us from deleting it as well
m_textCtrl->UnsubclassWin();
m_textCtrl->SetHWND(0);
delete m_textCtrl;
m_textCtrl = NULL;
}
event.SetEditCanceled(true);
}
eventType = wxEVT_COMMAND_LIST_END_LABEL_EDIT;
wxConvertFromMSWListItem(NULL, event.m_item, item);
event.m_itemIndex = event.m_item.m_itemId;
}
break;
case LVN_COLUMNCLICK:
eventType = wxEVT_COMMAND_LIST_COL_CLICK;
event.m_itemIndex = -1;
event.m_col = nmLV->iSubItem;
break;
case LVN_DELETEALLITEMS:
m_count = 0;
eventType = wxEVT_COMMAND_LIST_DELETE_ALL_ITEMS;
event.m_itemIndex = -1;
break;
case LVN_DELETEITEM:
if (m_count == 0)
// this should be prevented by the post-processing code below,
// but "just in case"
return FALSE;
eventType = wxEVT_COMMAND_LIST_DELETE_ITEM;
event.m_itemIndex = iItem;
// delete the assoicated internal data
wxDeleteInternalData(this, iItem);
break;
case LVN_SETDISPINFO:
{
eventType = wxEVT_COMMAND_LIST_SET_INFO;
LV_DISPINFO *info = (LV_DISPINFO *)lParam;
wxConvertFromMSWListItem(GetHwnd(), event.m_item, info->item);
}
break;
case LVN_INSERTITEM:
eventType = wxEVT_COMMAND_LIST_INSERT_ITEM;
event.m_itemIndex = iItem;
break;
case LVN_ITEMCHANGED:
// we translate this catch all message into more interesting
// (and more easy to process) wxWindows events
// first of all, we deal with the state change events only and
// only for valid items (item == -1 for the virtual list
// control)
if ( nmLV->uChanged & LVIF_STATE && iItem != -1 )
{
// temp vars for readability
const UINT stOld = nmLV->uOldState;
const UINT stNew = nmLV->uNewState;
event.m_item.SetId(iItem);
event.m_item.SetMask(wxLIST_MASK_TEXT |
wxLIST_MASK_IMAGE |
wxLIST_MASK_DATA);
GetItem(event.m_item);
// has the focus changed?
if ( !(stOld & LVIS_FOCUSED) && (stNew & LVIS_FOCUSED) )
{
eventType = wxEVT_COMMAND_LIST_ITEM_FOCUSED;
event.m_itemIndex = iItem;
}
if ( (stNew & LVIS_SELECTED) != (stOld & LVIS_SELECTED) )
{
if ( eventType != wxEVT_NULL )
{
// focus and selection have both changed: send the
// focus event from here and the selection one
// below
event.SetEventType(eventType);
(void)GetEventHandler()->ProcessEvent(event);
}
else // no focus event to send
{
// then need to set m_itemIndex as it wasn't done
// above
event.m_itemIndex = iItem;
}
eventType = stNew & LVIS_SELECTED
? wxEVT_COMMAND_LIST_ITEM_SELECTED
: wxEVT_COMMAND_LIST_ITEM_DESELECTED;
}
}
if ( eventType == wxEVT_NULL )
{
// not an interesting event for us
return FALSE;
}
break;
case LVN_KEYDOWN:
{
LV_KEYDOWN *info = (LV_KEYDOWN *)lParam;
WORD wVKey = info->wVKey;
// get the current selection
long lItem = GetNextItem(-1,
wxLIST_NEXT_ALL,
wxLIST_STATE_SELECTED);
// <Enter> or <Space> activate the selected item if any (but
// not with Shift and/or Ctrl as then they have a predefined
// meaning for the list view)
if ( lItem != -1 &&
(wVKey == VK_RETURN || wVKey == VK_SPACE) &&
!(wxIsShiftDown() || wxIsCtrlDown()) )
{
eventType = wxEVT_COMMAND_LIST_ITEM_ACTIVATED;
}
else
{
eventType = wxEVT_COMMAND_LIST_KEY_DOWN;
// wxCharCodeMSWToWX() returns 0 if the key is an ASCII
// value which should be used as is
int code = wxCharCodeMSWToWX(wVKey);
event.m_code = code ? code : wVKey;
}
event.m_itemIndex =
event.m_item.m_itemId = lItem;
if ( lItem != -1 )
{
// fill the other fields too
event.m_item.m_text = GetItemText(lItem);
event.m_item.m_data = GetItemData(lItem);
}
}
break;
case NM_DBLCLK:
// if the user processes it in wxEVT_COMMAND_LEFT_CLICK(), don't do
// anything else
if ( wxControl::MSWOnNotify(idCtrl, lParam, result) )
{
return TRUE;
}
// else translate it into wxEVT_COMMAND_LIST_ITEM_ACTIVATED event
// if it happened on an item (and not on empty place)
if ( iItem == -1 )
{
// not on item
return FALSE;
}
eventType = wxEVT_COMMAND_LIST_ITEM_ACTIVATED;
event.m_itemIndex = iItem;
event.m_item.m_text = GetItemText(iItem);
event.m_item.m_data = GetItemData(iItem);
break;
#if defined(__WXWINCE__) && _WIN32_WCE < 400
case GN_CONTEXTMENU:
#endif //__WXWINCE__
case NM_RCLICK:
// if the user processes it in wxEVT_COMMAND_RIGHT_CLICK(),
// don't do anything else
if ( wxControl::MSWOnNotify(idCtrl, lParam, result) )
{
return TRUE;
}
// else translate it into wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK event
LV_HITTESTINFO lvhti;
wxZeroMemory(lvhti);
#if defined(__WXWINCE__) && _WIN32_WCE < 400
if(nmhdr->code == GN_CONTEXTMENU) {
lvhti.pt = ((NMRGINFO*)nmhdr)->ptAction;
} else
#endif //__WXWINCE__
::GetCursorPos(&(lvhti.pt));
::ScreenToClient(GetHwnd(),&(lvhti.pt));
if ( ListView_HitTest(GetHwnd(),&lvhti) != -1 )
{
if ( lvhti.flags & LVHT_ONITEM )
{
eventType = wxEVT_COMMAND_LIST_ITEM_RIGHT_CLICK;
event.m_itemIndex = lvhti.iItem;
event.m_pointDrag.x = lvhti.pt.x;
event.m_pointDrag.y = lvhti.pt.y;
}
}
break;
#ifdef NM_CUSTOMDRAW
case NM_CUSTOMDRAW:
*result = OnCustomDraw(lParam);
return TRUE;
#endif // _WIN32_IE >= 0x300
case LVN_ODCACHEHINT:
{
const NM_CACHEHINT *cacheHint = (NM_CACHEHINT *)lParam;
eventType = wxEVT_COMMAND_LIST_CACHE_HINT;
// we get some really stupid cache hints like ones for
// items in range 0..0 for an empty control or, after
// deleting an item, for items in invalid range -- filter
// this garbage out
if ( cacheHint->iFrom > cacheHint->iTo )
return FALSE;
event.m_oldItemIndex = cacheHint->iFrom;
const long iMax = GetItemCount();
event.m_itemIndex = cacheHint->iTo < iMax ? cacheHint->iTo
: iMax - 1;
}
break;
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);
}
// see comment at the end of wxListCtrl::GetColumn()
#ifdef NM_CUSTOMDRAW
if ( lvi.mask & LVIF_IMAGE )
{
lvi.iImage = OnGetItemImage(item);
}
#endif // NM_CUSTOMDRAW
// 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);
}
}
else
{
// where did this one come from?
return FALSE;
}
// process the event
// -----------------
event.SetEventType(eventType);
bool processed = GetEventHandler()->ProcessEvent(event);
// post processing
// ---------------
switch ( nmhdr->code )
{
case LVN_DELETEALLITEMS:
// always return TRUE to suppress all additional LVN_DELETEITEM
// notifications - this makes deleting all items from a list ctrl
// much faster
*result = TRUE;
return TRUE;
case LVN_ENDLABELEDITA:
case LVN_ENDLABELEDITW:
// logic here is inversed compared to all the other messages
*result = event.IsAllowed();
// don't keep a stale wxTextCtrl around
if ( m_textCtrl )
{
// EDIT control will be deleted by the list control itself so
// prevent us from deleting it as well
m_textCtrl->UnsubclassWin();
m_textCtrl->SetHWND(0);
delete m_textCtrl;
m_textCtrl = NULL;
}
return TRUE;
}
if ( processed )
*result = !event.IsAllowed();
return processed;
}
// see comment at the end of wxListCtrl::GetColumn()
#ifdef NM_CUSTOMDRAW // _WIN32_IE >= 0x0300
WXLPARAM wxListCtrl::OnCustomDraw(WXLPARAM lParam)
{
LPNMLVCUSTOMDRAW lplvcd = (LPNMLVCUSTOMDRAW)lParam;
NMCUSTOMDRAW& nmcd = lplvcd->nmcd;
switch ( nmcd.dwDrawStage )
{
case CDDS_PREPAINT:
// if we've got any items with non standard attributes,
// notify us before painting each item
//
// for virtual controls, always suppose that we have attributes as
// there is no way to check for this
return IsVirtual() || m_hasAnyAttr ? CDRF_NOTIFYITEMDRAW
: CDRF_DODEFAULT;
case CDDS_ITEMPREPAINT:
{
size_t item = (size_t)nmcd.dwItemSpec;
if ( item >= (size_t)GetItemCount() )
{
// we get this message with item == 0 for an empty control,
// we must ignore it as calling OnGetItemAttr() would be
// wrong
return CDRF_DODEFAULT;
}
wxListItemAttr *attr =
IsVirtual() ? OnGetItemAttr(item)
: wxGetInternalDataAttr(this, item);
if ( !attr )
{
// nothing to do for this item
return CDRF_DODEFAULT;
}
HFONT hFont;
wxColour colText, colBack;
if ( attr->HasFont() )
{
wxFont font = attr->GetFont();
hFont = (HFONT)font.GetResourceHandle();
}
else
{
hFont = 0;
}
if ( attr->HasTextColour() )
{
colText = attr->GetTextColour();
}
else
{
colText = GetTextColour();
}
if ( attr->HasBackgroundColour() )
{
colBack = attr->GetBackgroundColour();
}
else
{
colBack = GetBackgroundColour();
}
lplvcd->clrText = wxColourToRGB(colText);
lplvcd->clrTextBk = wxColourToRGB(colBack);
// note that if we wanted to set colours for
// individual columns (subitems), we would have
// returned CDRF_NOTIFYSUBITEMREDRAW from here
if ( hFont )
{
::SelectObject(nmcd.hdc, hFont);
return CDRF_NEWFONT;
}
}
// fall through to return CDRF_DODEFAULT
default:
return CDRF_DODEFAULT;
}
}
#endif // NM_CUSTOMDRAW supported
// Necessary for drawing hrules and vrules, if specified
void wxListCtrl::OnPaint(wxPaintEvent& event)
{
wxPaintDC dc(this);
wxControl::OnPaint(event);
// Reset the device origin since it may have been set
dc.SetDeviceOrigin(0, 0);
bool drawHRules = ((GetWindowStyle() & wxLC_HRULES) != 0);
bool drawVRules = ((GetWindowStyle() & wxLC_VRULES) != 0);
if (!drawHRules && !drawVRules)
return;
if ((GetWindowStyle() & wxLC_REPORT) == 0)
return;
wxPen pen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT), 1, wxSOLID);
dc.SetPen(pen);
dc.SetBrush(* wxTRANSPARENT_BRUSH);
wxSize clientSize = GetClientSize();
wxRect itemRect;
int cy=0;
int itemCount = GetItemCount();
int i;
if (drawHRules)
{
long top = GetTopItem();
for (i = top; i < top + GetCountPerPage() + 1; i++)
{
if (GetItemRect(i, itemRect))
{
cy = itemRect.GetTop();
if (i != 0) // Don't draw the first one
{
dc.DrawLine(0, cy, clientSize.x, cy);
}
// Draw last line
if (i == itemCount - 1)
{
cy = itemRect.GetBottom();
dc.DrawLine(0, cy, clientSize.x, cy);
}
}
}
}
i = itemCount - 1;
if (drawVRules && (i > -1))
{
wxRect firstItemRect;
GetItemRect(0, firstItemRect);
if (GetItemRect(i, itemRect))
{
int col;
int x = itemRect.GetX();
for (col = 0; col < GetColumnCount(); col++)
{
int colWidth = GetColumnWidth(col);
x += colWidth ;
dc.DrawLine(x-1, firstItemRect.GetY() - 2, x-1, itemRect.GetBottom());
}
}
}
}
// ----------------------------------------------------------------------------
// virtual list controls
// ----------------------------------------------------------------------------
wxString wxListCtrl::OnGetItemText(long WXUNUSED(item), long WXUNUSED(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("wxListCtrl::OnGetItemText not supposed to be called") );
return wxEmptyString;
}
int wxListCtrl::OnGetItemImage(long WXUNUSED(item)) const
{
// same as above
wxFAIL_MSG( _T("wxListCtrl::OnGetItemImage not supposed to be called") );
return -1;
}
wxListItemAttr *wxListCtrl::OnGetItemAttr(long WXUNUSED_UNLESS_DEBUG(item)) const
{
wxASSERT_MSG( item >= 0 && item < GetItemCount(),
_T("invalid item index in OnGetItemAttr()") );
// no attributes by default
return NULL;
}
void wxListCtrl::SetItemCount(long count)
{
wxASSERT_MSG( IsVirtual(), _T("this is for virtual controls only") );
if ( !::SendMessage(GetHwnd(), LVM_SETITEMCOUNT, (WPARAM)count,
LVSICF_NOSCROLL | LVSICF_NOINVALIDATEALL) )
{
wxLogLastError(_T("ListView_SetItemCount"));
}
m_count = count;
wxASSERT_MSG( m_count == ListView_GetItemCount(GetHwnd()),
wxT("m_count should match ListView_GetItemCount"));
}
void wxListCtrl::RefreshItem(long item)
{
// strangely enough, ListView_Update() results in much more flicker here
// than a dumb Refresh() -- why?
#if 0
if ( !ListView_Update(GetHwnd(), item) )
{
wxLogLastError(_T("ListView_Update"));
}
#else // 1
wxRect rect;
GetItemRect(item, rect);
RefreshRect(rect);
#endif // 0/1
}
void wxListCtrl::RefreshItems(long itemFrom, long itemTo)
{
wxRect rect1, rect2;
GetItemRect(itemFrom, rect1);
GetItemRect(itemTo, rect2);
wxRect rect = rect1;
rect.height = rect2.GetBottom() - rect1.GetTop();
RefreshRect(rect);
}
static wxListItemInternalData *wxGetInternalData(HWND hwnd, long itemId)
{
LV_ITEM it;
it.mask = LVIF_PARAM;
it.iItem = itemId;
bool success = ListView_GetItem(hwnd, &it) != 0;
if (success)
return (wxListItemInternalData *) it.lParam;
else
return NULL;
};
static wxListItemInternalData *wxGetInternalData(wxListCtrl *ctl, long itemId)
{
return wxGetInternalData((HWND) ctl->GetHWND(), itemId);
};
static wxListItemAttr *wxGetInternalDataAttr(wxListCtrl *ctl, long itemId)
{
wxListItemInternalData *data = wxGetInternalData(ctl, itemId);
if (data)
return data->attr;
else
return NULL;
};
static void wxDeleteInternalData(wxListCtrl* ctl, long itemId)
{
wxListItemInternalData *data = wxGetInternalData(ctl, itemId);
if (data)
{
LV_ITEM item;
memset(&item, 0, sizeof(item));
item.iItem = itemId;
item.mask = LVIF_PARAM;
item.lParam = (LPARAM) 0;
ListView_SetItem((HWND)ctl->GetHWND(), &item);
delete data;
}
}
static void wxConvertFromMSWListItem(HWND hwndListCtrl,
wxListItem& info,
LV_ITEM& lvItem)
{
wxListItemInternalData *internaldata =
(wxListItemInternalData *) lvItem.lParam;
if (internaldata)
info.m_data = internaldata->lParam;
info.m_mask = 0;
info.m_state = 0;
info.m_stateMask = 0;
info.m_itemId = lvItem.iItem;
long oldMask = lvItem.mask;
bool needText = FALSE;
if (hwndListCtrl != 0)
{
if ( lvItem.mask & LVIF_TEXT )
needText = FALSE;
else
needText = TRUE;
if ( needText )
{
lvItem.pszText = new wxChar[513];
lvItem.cchTextMax = 512;
}
lvItem.mask |= LVIF_TEXT | LVIF_IMAGE | LVIF_PARAM;
::SendMessage(hwndListCtrl, LVM_GETITEM, 0, (LPARAM)& lvItem);
}
if ( lvItem.mask & LVIF_STATE )
{
info.m_mask |= wxLIST_MASK_STATE;
if ( lvItem.stateMask & LVIS_CUT)
{
info.m_stateMask |= wxLIST_STATE_CUT;
if ( lvItem.state & LVIS_CUT )
info.m_state |= wxLIST_STATE_CUT;
}
if ( lvItem.stateMask & LVIS_DROPHILITED)
{
info.m_stateMask |= wxLIST_STATE_DROPHILITED;
if ( lvItem.state & LVIS_DROPHILITED )
info.m_state |= wxLIST_STATE_DROPHILITED;
}
if ( lvItem.stateMask & LVIS_FOCUSED)
{
info.m_stateMask |= wxLIST_STATE_FOCUSED;
if ( lvItem.state & LVIS_FOCUSED )
info.m_state |= wxLIST_STATE_FOCUSED;
}
if ( lvItem.stateMask & LVIS_SELECTED)
{
info.m_stateMask |= wxLIST_STATE_SELECTED;
if ( lvItem.state & LVIS_SELECTED )
info.m_state |= wxLIST_STATE_SELECTED;
}
}
if ( lvItem.mask & LVIF_TEXT )
{
info.m_mask |= wxLIST_MASK_TEXT;
info.m_text = lvItem.pszText;
}
if ( lvItem.mask & LVIF_IMAGE )
{
info.m_mask |= wxLIST_MASK_IMAGE;
info.m_image = lvItem.iImage;
}
if ( lvItem.mask & LVIF_PARAM )
info.m_mask |= wxLIST_MASK_DATA;
if ( lvItem.mask & LVIF_DI_SETITEM )
info.m_mask |= wxLIST_SET_ITEM;
info.m_col = lvItem.iSubItem;
if (needText)
{
if (lvItem.pszText)
delete[] lvItem.pszText;
}
lvItem.mask = oldMask;
}
static void wxConvertToMSWFlags(long state, long stateMask, LV_ITEM& lvItem)
{
if (stateMask & wxLIST_STATE_CUT)
{
lvItem.stateMask |= LVIS_CUT;
if (state & wxLIST_STATE_CUT)
lvItem.state |= LVIS_CUT;
}
if (stateMask & wxLIST_STATE_DROPHILITED)
{
lvItem.stateMask |= LVIS_DROPHILITED;
if (state & wxLIST_STATE_DROPHILITED)
lvItem.state |= LVIS_DROPHILITED;
}
if (stateMask & wxLIST_STATE_FOCUSED)
{
lvItem.stateMask |= LVIS_FOCUSED;
if (state & wxLIST_STATE_FOCUSED)
lvItem.state |= LVIS_FOCUSED;
}
if (stateMask & wxLIST_STATE_SELECTED)
{
lvItem.stateMask |= LVIS_SELECTED;
if (state & wxLIST_STATE_SELECTED)
lvItem.state |= LVIS_SELECTED;
}
}
static void wxConvertToMSWListItem(const wxListCtrl *ctrl,
const wxListItem& info,
LV_ITEM& lvItem)
{
lvItem.iItem = (int) info.m_itemId;
lvItem.iImage = info.m_image;
lvItem.stateMask = 0;
lvItem.state = 0;
lvItem.mask = 0;
lvItem.iSubItem = info.m_col;
if (info.m_mask & wxLIST_MASK_STATE)
{
lvItem.mask |= LVIF_STATE;
wxConvertToMSWFlags(info.m_state, info.m_stateMask, lvItem);
}
if (info.m_mask & wxLIST_MASK_TEXT)
{
lvItem.mask |= LVIF_TEXT;
if ( ctrl->GetWindowStyleFlag() & wxLC_USER_TEXT )
{
lvItem.pszText = LPSTR_TEXTCALLBACK;
}
else
{
// pszText is not const, hence the cast
lvItem.pszText = (wxChar *)info.m_text.c_str();
if ( lvItem.pszText )
lvItem.cchTextMax = info.m_text.Length();
else
lvItem.cchTextMax = 0;
}
}
if (info.m_mask & wxLIST_MASK_IMAGE)
lvItem.mask |= LVIF_IMAGE;
}
static void wxConvertToMSWListCol(int WXUNUSED(col), const wxListItem& item,
LV_COLUMN& lvCol)
{
wxZeroMemory(lvCol);
if ( item.m_mask & wxLIST_MASK_TEXT )
{
lvCol.mask |= LVCF_TEXT;
lvCol.pszText = (wxChar *)item.m_text.c_str(); // cast is safe
}
if ( item.m_mask & wxLIST_MASK_FORMAT )
{
lvCol.mask |= LVCF_FMT;
if ( item.m_format == wxLIST_FORMAT_LEFT )
lvCol.fmt = LVCFMT_LEFT;
else if ( item.m_format == wxLIST_FORMAT_RIGHT )
lvCol.fmt = LVCFMT_RIGHT;
else if ( item.m_format == wxLIST_FORMAT_CENTRE )
lvCol.fmt = LVCFMT_CENTER;
}
if ( item.m_mask & wxLIST_MASK_WIDTH )
{
lvCol.mask |= LVCF_WIDTH;
if ( item.m_width == wxLIST_AUTOSIZE)
lvCol.cx = LVSCW_AUTOSIZE;
else if ( item.m_width == wxLIST_AUTOSIZE_USEHEADER)
lvCol.cx = LVSCW_AUTOSIZE_USEHEADER;
else
lvCol.cx = item.m_width;
}
// see comment at the end of wxListCtrl::GetColumn()
#ifdef NM_CUSTOMDRAW // _WIN32_IE >= 0x0300
if ( item.m_mask & wxLIST_MASK_IMAGE )
{
if ( wxTheApp->GetComCtl32Version() >= 470 )
{
lvCol.mask |= LVCF_IMAGE | LVCF_FMT;
// we use LVCFMT_BITMAP_ON_RIGHT because thei mages on the right
// seem to be generally nicer than on the left and the generic
// version only draws them on the right (we don't have a flag to
// specify the image location anyhow)
//
// we don't use LVCFMT_COL_HAS_IMAGES because it doesn't seem to
// make any difference in my tests -- but maybe we should?
lvCol.fmt |= LVCFMT_BITMAP_ON_RIGHT | LVCFMT_IMAGE;
lvCol.iImage = item.m_image;
}
//else: it doesn't support item images anyhow
}
#endif // _WIN32_IE >= 0x0300
}
#endif // wxUSE_LISTCTRL
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