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2cefcb34d25e6d36d3f66af01fd5c24088df63df
wxWidgets/src/msw/listctrl.cpp
Vadim Zeitlin 2cefcb34d2 compilation warning fix 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11382 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2001-08-15 11:47:39 +00:00

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/////////////////////////////////////////////////////////////////////////////
// Name: listctrl.cpp
// Purpose: wxListCtrl
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart and Markus Holzem
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#ifdef __GNUG__
#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(__GNUWIN32_OLD__) || defined(__TWIN32__)) && !defined(__CYGWIN10__))
#include "wx/msw/gnuwin32/extra.h"
#else
#include <commctrl.h>
#endif
#ifndef LVHT_ONITEM
#define LVHT_ONITEM \
(LVHT_ONITEMICON | LVHT_ONITEMLABEL | LVHT_ONITEMSTATEICON)
#endif
#ifndef LVM_SETEXTENDEDLISTVIEWSTYLE
#define LVM_SETEXTENDEDLISTVIEWSTYLE (0x1000 + 54)
#endif
#ifndef LVS_EX_FULLROWSELECT
#define LVS_EX_FULLROWSELECT 0x00000020
#endif
#ifndef LVS_OWNERDATA
#define LVS_OWNERDATA 0x1000
#endif
// mingw32/cygwin don't have declarations for comctl32.dll 4.70+ stuff
#ifndef NM_CACHEHINT
typedef struct tagNMLVCACHEHINT
{
NMHDR hdr;
int iFrom;
int iTo;
} NMLVCACHEHINT;
#define NM_CACHEHINT NMLVCACHEHINT
#endif
#ifndef LVN_ODCACHEHINT
#define LVN_ODCACHEHINT (-113)
#endif
// ----------------------------------------------------------------------------
// 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);
// ----------------------------------------------------------------------------
// 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_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_CACHE_HINT)
IMPLEMENT_DYNAMIC_CLASS(wxListCtrl, wxControl)
IMPLEMENT_DYNAMIC_CLASS(wxListView, wxListCtrl)
IMPLEMENT_DYNAMIC_CLASS(wxListItem, wxObject)
BEGIN_EVENT_TABLE(wxListCtrl, wxControl)
EVT_PAINT(wxListCtrl::OnPaint)
END_EVENT_TABLE()
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// wxListEvent
// ----------------------------------------------------------------------------
void wxListEvent::CopyObject(wxObject& object_dest) const
{
wxListEvent *obj = (wxListEvent *)&object_dest;
wxNotifyEvent::CopyObject(object_dest);
obj->m_code = m_code;
obj->m_itemIndex = m_itemIndex;
obj->m_oldItemIndex = m_oldItemIndex;
obj->m_col = m_col;
obj->m_cancelled = m_cancelled;
obj->m_pointDrag = m_pointDrag;
obj->m_item.m_mask = m_item.m_mask;
obj->m_item.m_itemId = m_item.m_itemId;
obj->m_item.m_col = m_item.m_col;
obj->m_item.m_state = m_item.m_state;
obj->m_item.m_stateMask = m_item.m_stateMask;
obj->m_item.m_text = m_item.m_text;
obj->m_item.m_image = m_item.m_image;
obj->m_item.m_data = m_item.m_data;
obj->m_item.m_format = m_item.m_format;
obj->m_item.m_width = m_item.m_width;
if ( m_item.HasAttributes() )
{
obj->m_item.SetTextColour(m_item.GetTextColour());
obj->m_item.SetBackgroundColour(m_item.GetBackgroundColour());
obj->m_item.SetFont(m_item.GetFont());
}
}
// ----------------------------------------------------------------------------
// 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_textCtrl = NULL;
m_hasAnyAttr = FALSE;
}
bool wxListCtrl::Create(wxWindow *parent,
wxWindowID id,
const wxPoint& pos,
const wxSize& size,
long style,
const wxValidator& 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;
if ( m_windowStyle & wxCLIP_SIBLINGS )
wstyle |= WS_CLIPSIBLINGS;
if ( wxStyleHasBorder(m_windowStyle) )
wstyle |= WS_BORDER;
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;
bool want3D;
WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
// Even with extended styles, need to combine with WS_BORDER
// for them to look right.
if ( want3D )
wstyle |= WS_BORDER;
long oldStyle = 0; // Dummy
wstyle |= ConvertToMSWStyle(oldStyle, m_windowStyle);
// Create the ListView control.
m_hWnd = (WXHWND)CreateWindowEx(exStyle,
WC_LISTVIEW,
wxT(""),
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;
}
// 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::GetSystemColour(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::FreeAllAttrs(bool dontRecreate)
{
if ( m_hasAnyAttr )
{
for ( wxNode *node = m_attrs.Next(); node; node = m_attrs.Next() )
{
delete (wxListItemAttr *)node->Data();
}
m_attrs.Destroy();
if ( !dontRecreate )
{
m_attrs.Create(wxKEY_INTEGER, 1000); // just as def ctor
}
m_hasAnyAttr = FALSE;
}
}
wxListCtrl::~wxListCtrl()
{
FreeAllAttrs(TRUE /* no need to recreate hash any more */);
if ( m_textCtrl )
{
m_textCtrl->SetHWND(0);
m_textCtrl->UnsubclassWin();
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;
lvCol.mask = 0;
lvCol.fmt = 0;
lvCol.pszText = NULL;
if ( item.m_mask & wxLIST_MASK_TEXT )
{
lvCol.mask |= LVCF_TEXT;
lvCol.pszText = new wxChar[513];
lvCol.cchTextMax = 512;
}
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 )
{
if (lvCol.fmt == LVCFMT_LEFT)
item.m_format = wxLIST_FORMAT_LEFT;
else if (lvCol.fmt == LVCFMT_RIGHT)
item.m_format = wxLIST_FORMAT_RIGHT;
else if (lvCol.fmt == LVCFMT_CENTER)
item.m_format = wxLIST_FORMAT_CENTRE;
}
return success;
}
// Sets information about this column
bool wxListCtrl::SetColumn(int col, wxListItem& item)
{
LV_COLUMN lvCol;
lvCol.mask = 0;
lvCol.fmt = 0;
lvCol.pszText = NULL;
if ( item.m_mask & wxLIST_MASK_TEXT )
{
lvCol.mask |= LVCF_TEXT;
lvCol.pszText = WXSTRINGCAST item.m_text;
lvCol.cchTextMax = 0; // Ignored
}
if ( item.m_mask & wxLIST_MASK_FORMAT )
{
lvCol.mask |= LVCF_FMT;
if ( item.m_format == wxLIST_FORMAT_LEFT )
lvCol.fmt = LVCFMT_LEFT;
if ( item.m_format == wxLIST_FORMAT_RIGHT )
lvCol.fmt = LVCFMT_RIGHT;
if ( item.m_format == wxLIST_FORMAT_CENTRE )
lvCol.fmt = LVCFMT_CENTER;
}
if ( item.m_mask & wxLIST_MASK_WIDTH )
{
lvCol.mask |= LVCF_WIDTH;
lvCol.cx = item.m_width;
if ( lvCol.cx == wxLIST_AUTOSIZE)
lvCol.cx = LVSCW_AUTOSIZE;
else if ( lvCol.cx == wxLIST_AUTOSIZE_USEHEADER)
lvCol.cx = LVSCW_AUTOSIZE_USEHEADER;
}
lvCol.mask |= LVCF_SUBITEM;
lvCol.iSubItem = col;
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);
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() )
{
wxListItemAttr *attr = (wxListItemAttr *)m_attrs.Get(item.iItem);
if ( attr == NULL )
m_attrs.Put(item.iItem, (wxObject *)new wxListItemAttr(*info.GetAttributes()));
else
*attr = *info.GetAttributes();
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
ListView_Update(GetHwnd(), 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);
if ( !::SendMessage(GetHwnd(), LVM_SETITEMSTATE,
(WPARAM)item, (LPARAM)&lvItem) )
{
wxLogLastError(_T("ListView_SetItemState"));
return FALSE;
}
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 wxString("");
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);
}
// Gets the item rectangle
bool wxListCtrl::GetItemRect(long item, wxRect& rect, int code) const
{
RECT rect2;
int code2 = LVIR_BOUNDS;
if ( code == wxLIST_RECT_BOUNDS )
code2 = LVIR_BOUNDS;
else if ( code == wxLIST_RECT_ICON )
code2 = LVIR_ICON;
else if ( code == wxLIST_RECT_LABEL )
code2 = LVIR_LABEL;
#ifdef __WXWINE__
bool success = (ListView_GetItemRect(GetHwnd(), (int) item, &rect2 ) != 0);
#else
bool success = (ListView_GetItemRect(GetHwnd(), (int) item, &rect2, code2) != 0);
#endif
rect.x = rect2.left;
rect.y = rect2.top;
rect.width = rect2.right - rect2.left;
rect.height = rect2.bottom - rect2.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 ListView_GetItemCount(GetHwnd());
}
// Retrieves the spacing between icons in pixels.
// If small is TRUE, gets the spacing for the small icon
// view, otherwise the large icon view.
int wxListCtrl::GetItemSpacing(bool isSmall) const
{
return ListView_GetItemSpacing(GetHwnd(), (BOOL) isSmall);
}
// 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)
{
return (ListView_DeleteItem(GetHwnd(), (int) item) != 0);
}
// Deletes all items
bool wxListCtrl::DeleteAllItems()
{
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))) );
// VS: ListView_EditLabel requires that the list has focus.
SetFocus();
HWND hWnd = (HWND) ListView_EditLabel(GetHwnd(), item);
if (m_textCtrl)
{
m_textCtrl->SetHWND(0);
m_textCtrl->UnsubclassWin();
delete m_textCtrl;
m_textCtrl = NULL;
}
m_textCtrl = (wxTextCtrl*) textControlClass->CreateObject();
m_textCtrl->SetHWND((WXHWND) hWnd);
m_textCtrl->SubclassWin((WXHWND) hWnd);
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.
long wxListCtrl::FindItem(long start, long data)
{
LV_FINDINFO findInfo;
findInfo.flags = LVFI_PARAM;
findInfo.lParam = data;
return ListView_FindItem(GetHwnd(), (int) start, & findInfo);
}
// 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);
// check whether it has any custom attributes
if ( info.HasAttributes() )
{
wxListItemAttr *attr;
attr = (wxListItemAttr*) m_attrs.Get(item.iItem);
if (attr == NULL)
m_attrs.Put(item.iItem, (wxObject *)new wxListItemAttr(*info.GetAttributes()));
else *attr = *info.GetAttributes();
m_hasAnyAttr = TRUE;
}
return (long) ListView_InsertItem(GetHwnd(), & item);
}
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;
lvCol.mask = 0;
lvCol.fmt = 0;
lvCol.pszText = NULL;
if ( item.m_mask & wxLIST_MASK_TEXT )
{
lvCol.mask |= LVCF_TEXT;
lvCol.pszText = WXSTRINGCAST item.m_text;
lvCol.cchTextMax = 0; // Ignored
}
if ( item.m_mask & wxLIST_MASK_FORMAT )
{
lvCol.mask |= LVCF_FMT;
if ( item.m_format == wxLIST_FORMAT_LEFT )
lvCol.fmt = LVCFMT_LEFT;
if ( item.m_format == wxLIST_FORMAT_RIGHT )
lvCol.fmt = LVCFMT_RIGHT;
if ( item.m_format == wxLIST_FORMAT_CENTRE )
lvCol.fmt = LVCFMT_CENTER;
}
lvCol.mask |= LVCF_WIDTH;
if ( item.m_mask & wxLIST_MASK_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;
}
else
{
// always give some width to the new column: this one is compatible
// with wxGTK
lvCol.cx = 80;
}
lvCol.mask |= LVCF_SUBITEM;
lvCol.iSubItem = col;
bool success = ListView_InsertColumn(GetHwnd(), col, & lvCol) != -1;
if ( success )
{
m_colCount++;
}
else
{
wxLogDebug(wxT("Failed to insert the column '%s' into listview!"),
lvCol.pszText);
}
return success;
}
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);
}
// Scrolls the list control. If in icon, small icon or report view mode,
// x specifies the number of pixels to scroll. If in list view mode, x
// specifies the number of columns to scroll.
// If in icon, small icon or list view mode, y specifies the number of pixels
// to scroll. If in report view mode, y specifies the number of lines to scroll.
bool wxListCtrl::ScrollList(int dx, int dy)
{
return (ListView_Scroll(GetHwnd(), dx, dy) != 0);
}
// 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.
// FIXME: this is horrible and MT-unsafe and everything else but I don't have
// time for anything better right now (VZ)
static long gs_sortData = 0;
static wxListCtrl *gs_sortCtrl = NULL;
static wxListCtrlCompare gs_sortFunction = NULL;
int wxCMPFUNC_CONV wxListCtrlCompareFn(const void *arg1, const void *arg2)
{
int n1 = *(const int *)arg1,
n2 = *(const int *)arg2;
return gs_sortFunction(gs_sortCtrl->GetItemData(n1),
gs_sortCtrl->GetItemData(n2),
gs_sortData);
}
bool wxListCtrl::SortItems(wxListCtrlCompare fn, long data)
{
// sort the attributes too
if ( m_hasAnyAttr )
{
int n,
count = GetItemCount();
int *aItems = new int[count];
for ( n = 0; n < count; n++ )
{
aItems[n] = n;
}
gs_sortData = data;
gs_sortCtrl = this;
gs_sortFunction = fn;
qsort(aItems, count, sizeof(int), wxListCtrlCompareFn);
gs_sortData = 0;
gs_sortCtrl = NULL;
gs_sortFunction = NULL;
wxHashTable attrsNew(wxKEY_INTEGER, 1000);
for ( n = 0; n < count; n++ )
{
wxObject *attr = m_attrs.Delete(aItems[n]);
if ( attr )
{
attrsNew.Put(n, attr);
}
}
m_attrs.Destroy();
m_attrs = attrsNew;
delete [] aItems;
}
if ( !ListView_SortItems(GetHwnd(), (PFNLVCOMPARE)fn, data) )
{
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);
wxEventType eventType = wxEVT_NULL;
NMHDR *nmhdr = (NMHDR *)lParam;
// almost all messages use NM_LISTVIEW
NM_LISTVIEW *nmLV = (NM_LISTVIEW *)nmhdr;
// this is true for almost all events
event.m_item.m_data = nmLV->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 = nmLV->iItem;
event.m_pointDrag.x = nmLV->ptAction.x;
event.m_pointDrag.y = nmLV->ptAction.y;
break;
case LVN_BEGINLABELEDIT:
{
eventType = wxEVT_COMMAND_LIST_BEGIN_LABEL_EDIT;
LV_DISPINFO *info = (LV_DISPINFO *)lParam;
wxConvertFromMSWListItem(GetHwnd(), event.m_item, info->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:
eventType = wxEVT_COMMAND_LIST_DELETE_ALL_ITEMS;
event.m_itemIndex = -1;
FreeAllAttrs();
break;
case LVN_DELETEITEM:
eventType = wxEVT_COMMAND_LIST_DELETE_ITEM;
event.m_itemIndex = nmLV->iItem;
if ( m_hasAnyAttr )
{
delete (wxListItemAttr *)m_attrs.Delete(nmLV->iItem);
}
break;
case LVN_ENDLABELEDIT:
{
eventType = wxEVT_COMMAND_LIST_END_LABEL_EDIT;
LV_DISPINFO *info = (LV_DISPINFO *)lParam;
wxConvertFromMSWListItem(GetHwnd(), event.m_item, info->item);
if ( info->item.pszText == NULL || info->item.iItem == -1 )
return FALSE;
event.m_itemIndex = event.m_item.m_itemId;
}
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 = nmLV->iItem;
break;
case LVN_ITEMCHANGED:
// This needs to be sent to wxListCtrl as a rather more concrete
// event. For now, just detect a selection or deselection.
if ( (nmLV->uNewState & LVIS_SELECTED) && !(nmLV->uOldState & LVIS_SELECTED) )
{
eventType = wxEVT_COMMAND_LIST_ITEM_SELECTED;
event.m_itemIndex = nmLV->iItem;
}
else if ( !(nmLV->uNewState & LVIS_SELECTED) && (nmLV->uOldState & LVIS_SELECTED) )
{
eventType = wxEVT_COMMAND_LIST_ITEM_DESELECTED;
event.m_itemIndex = nmLV->iItem;
}
else
{
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;
event.m_code = wxCharCodeMSWToWX(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 ( nmLV->iItem == -1 )
{
// not on item
return FALSE;
}
eventType = wxEVT_COMMAND_LIST_ITEM_ACTIVATED;
event.m_itemIndex = nmLV->iItem;
event.m_item.m_text = GetItemText(nmLV->iItem);
event.m_item.m_data = GetItemData(nmLV->iItem);
break;
case NM_RCLICK:
/* TECH NOTE: NM_RCLICK isn't really good enough here. We want to
subclass and check for the actual WM_RBUTTONDOWN message,
because NM_RCLICK waits for the WM_RBUTTONUP message as well
before firing off. We want to have notify events for both down
-and- up. */
{
// 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);
::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;
#if 0
case NM_MCLICK: // ***** THERE IS NO NM_MCLICK. Subclass anyone? ******
{
// if the user processes it in wxEVT_COMMAND_MIDDLE_CLICK(), don't do
// anything else
if ( wxControl::MSWOnNotify(idCtrl, lParam, result) )
{
return TRUE;
}
// else translate it into wxEVT_COMMAND_LIST_ITEM_MIDDLE_CLICK event
eventType = wxEVT_COMMAND_LIST_ITEM_MIDDLE_CLICK;
NMITEMACTIVATE* hdr = (NMITEMACTIVATE*)lParam;
event.m_itemIndex = hdr->iItem;
}
break;
#endif // 0
#if defined(_WIN32_IE) && _WIN32_IE >= 0x300 \
&& !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 0 ) )
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 )
{
event.m_oldItemIndex = cacheHint->iFrom;
long iMax = GetItemCount();
event.m_itemIndex = cacheHint->iTo < iMax ? cacheHint->iTo
: iMax - 1;
}
else
{
return FALSE;
}
}
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);
}
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);
}
// process the event
// -----------------
event.SetEventObject( this );
event.SetEventType(eventType);
if ( !GetEventHandler()->ProcessEvent(event) )
return FALSE;
// 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_ENDLABELEDIT:
// logic here is inversed compared to all the other messages
*result = event.IsAllowed();
return TRUE;
}
*result = !event.IsAllowed();
return TRUE;
}
#if defined(_WIN32_IE) && _WIN32_IE >= 0x300
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)
: (wxListItemAttr *)m_attrs.Get(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::GetSystemColour(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, firstItemRect.GetY() - 2, x, 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("not supposed to be called") );
return wxEmptyString;
}
int wxListCtrl::OnGetItemImage(long WXUNUSED(item)) const
{
// same as above
wxFAIL_MSG( _T("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, 0) )
{
wxLogLastError(_T("ListView_SetItemCount"));
}
}
void wxListCtrl::RefreshItem(long item)
{
if ( !ListView_Update(GetHwnd(), item) )
{
wxLogLastError(_T("ListView_Update"));
}
}
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);
}
// ----------------------------------------------------------------------------
// wxListItem
// ----------------------------------------------------------------------------
// List item structure
wxListItem::wxListItem()
{
m_mask = 0;
m_itemId = 0;
m_col = 0;
m_state = 0;
m_stateMask = 0;
m_image = 0;
m_data = 0;
m_format = wxLIST_FORMAT_CENTRE;
m_width = 0;
m_attr = NULL;
}
void wxListItem::Clear()
{
m_mask = 0;
m_itemId = 0;
m_col = 0;
m_state = 0;
m_stateMask = 0;
m_image = 0;
m_data = 0;
m_format = wxLIST_FORMAT_CENTRE;
m_width = 0;
m_text = wxEmptyString;
if (m_attr) delete m_attr;
m_attr = NULL;
}
void wxListItem::ClearAttributes()
{
if (m_attr) delete m_attr;
m_attr = NULL;
}
static void wxConvertFromMSWListItem(HWND hwndListCtrl,
wxListItem& info,
LV_ITEM& lvItem)
{
info.m_data = lvItem.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.lParam = info.m_data;
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;
if (info.m_mask & wxLIST_MASK_DATA)
lvItem.mask |= LVIF_PARAM;
}
// ----------------------------------------------------------------------------
// List event
// ----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxListEvent, wxNotifyEvent)
wxListEvent::wxListEvent(wxEventType commandType, int id)
: wxNotifyEvent(commandType, id)
{
m_code = 0;
m_itemIndex = 0;
m_oldItemIndex = 0;
m_col = 0;
m_cancelled = FALSE;
}
#endif // wxUSE_LISTCTRL
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