///////////////////////////////////////////////////////////////////////////////
-// Name: listbox.cpp
+// Name: src/msw/listbox.cpp
// Purpose: wxListBox
// Author: Julian Smart
// Modified by: Vadim Zeitlin (owner drawn stuff)
// Created:
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
-// Licence: wxWindows license
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "listbox.h"
#endif
#pragma hdrstop
#endif
-#include "wx/window.h"
-#include "wx/msw/private.h"
+#if wxUSE_LISTBOX
#ifndef WX_PRECOMP
#include "wx/listbox.h"
#include "wx/utils.h"
#endif
-#include <windowsx.h>
+#include "wx/window.h"
+#include "wx/msw/private.h"
-#ifdef __WXWINE__
- #if defined(GetWindowStyle)
- #undef GetWindowStyle
- #endif
-#endif
+#include <windowsx.h>
#include "wx/dynarray.h"
#include "wx/log.h"
#include "wx/ownerdrw.h"
#endif
-#ifndef __TWIN32__
- #if defined(__GNUWIN32__)
- #ifndef wxUSE_NORLANDER_HEADERS
- #include "wx/msw/gnuwin32/extra.h"
- #endif
- #endif
+#ifdef __GNUWIN32_OLD__
+ #include "wx/msw/gnuwin32/extra.h"
#endif
-#ifdef __WXWINE__
- #ifndef ListBox_SetItemData
- #define ListBox_SetItemData(hwndCtl, index, data) \
- ((int)(DWORD)SendMessage((hwndCtl), LB_SETITEMDATA, (WPARAM)(int)(index), (LPARAM)(data)))
- #endif
- #ifndef ListBox_GetHorizontalExtent
- #define ListBox_GetHorizontalExtent(hwndCtl) \
- ((int)(DWORD)SendMessage((hwndCtl), LB_GETHORIZONTALEXTENT, 0L, 0L))
- #endif
- #ifndef ListBox_GetSelCount
- #define ListBox_GetSelCount(hwndCtl) \
- ((int)(DWORD)SendMessage((hwndCtl), LB_GETSELCOUNT, 0L, 0L))
- #endif
- #ifndef ListBox_GetSelItems
- #define ListBox_GetSelItems(hwndCtl, cItems, lpItems) \
- ((int)(DWORD)SendMessage((hwndCtl), LB_GETSELITEMS, (WPARAM)(int)(cItems), (LPARAM)(int *)(lpItems)))
- #endif
- #ifndef ListBox_GetTextLen
- #define ListBox_GetTextLen(hwndCtl, index) \
- ((int)(DWORD)SendMessage((hwndCtl), LB_GETTEXTLEN, (WPARAM)(int)(index), 0L))
- #endif
- #ifndef ListBox_GetText
- #define ListBox_GetText(hwndCtl, index, lpszBuffer) \
- ((int)(DWORD)SendMessage((hwndCtl), LB_GETTEXT, (WPARAM)(int)(index), (LPARAM)(LPCTSTR)(lpszBuffer)))
- #endif
+#if wxUSE_EXTENDED_RTTI
+WX_DEFINE_FLAGS( wxListBoxStyle )
+
+wxBEGIN_FLAGS( wxListBoxStyle )
+ // 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(wxLB_SINGLE)
+ wxFLAGS_MEMBER(wxLB_MULTIPLE)
+ wxFLAGS_MEMBER(wxLB_EXTENDED)
+ wxFLAGS_MEMBER(wxLB_HSCROLL)
+ wxFLAGS_MEMBER(wxLB_ALWAYS_SB)
+ wxFLAGS_MEMBER(wxLB_NEEDED_SB)
+ wxFLAGS_MEMBER(wxLB_SORT)
+
+wxEND_FLAGS( wxListBoxStyle )
+
+IMPLEMENT_DYNAMIC_CLASS_XTI(wxListBox, wxControl,"wx/listbox.h")
+
+wxBEGIN_PROPERTIES_TABLE(wxListBox)
+ wxEVENT_PROPERTY( Select , wxEVT_COMMAND_LISTBOX_SELECTED , wxCommandEvent )
+ wxEVENT_PROPERTY( DoubleClick , wxEVT_COMMAND_LISTBOX_DOUBLECLICKED , wxCommandEvent )
+
+ wxPROPERTY( Font , wxFont , SetFont , GetFont , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+ wxPROPERTY_COLLECTION( Choices , wxArrayString , wxString , AppendString , GetStrings, 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
+ wxPROPERTY( Selection ,int, SetSelection, GetSelection, EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
+ wxPROPERTY_FLAGS( WindowStyle , wxListBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
+wxEND_PROPERTIES_TABLE()
+
+wxBEGIN_HANDLERS_TABLE(wxListBox)
+wxEND_HANDLERS_TABLE()
+
+wxCONSTRUCTOR_4( wxListBox , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size )
+#else
+IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
#endif
- IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
+/*
+TODO PROPERTIES
+ selection
+ content
+ item
+*/
// ============================================================================
// list box item declaration and implementation
class wxListBoxItem : public wxOwnerDrawn
{
public:
- wxListBoxItem(const wxString& str = "");
+ wxListBoxItem(const wxString& str = wxEmptyString);
};
-wxListBoxItem::wxListBoxItem(const wxString& str) : wxOwnerDrawn(str, FALSE)
+wxListBoxItem::wxListBoxItem(const wxString& str) : wxOwnerDrawn(str, false)
{
// no bitmaps/checkmarks
SetMarginWidth(0);
}
-wxOwnerDrawn *wxListBox::CreateItem(size_t n)
+wxOwnerDrawn *wxListBox::CreateLboxItem(size_t WXUNUSED(n))
{
return new wxListBoxItem();
}
const wxString& name)
{
m_noItems = 0;
- m_hWnd = 0;
m_selected = 0;
- SetName(name);
-#if wxUSE_VALIDATORS
- SetValidator(validator);
-#endif // wxUSE_VALIDATORS
-
- if (parent)
- parent->AddChild(this);
+ // initialize base class fields
+ if ( !CreateControl(parent, id, pos, size, style, validator, name) )
+ return false;
- wxSystemSettings settings;
- SetBackgroundColour(settings.GetSystemColour(wxSYS_COLOUR_WINDOW));
- SetForegroundColour(parent->GetForegroundColour());
-
- m_windowId = ( id == -1 ) ? (int)NewControlId() : id;
-
- int x = pos.x;
- int y = pos.y;
- int width = size.x;
- int height = size.y;
- m_windowStyle = style;
-
- DWORD wstyle = WS_VISIBLE | WS_VSCROLL | WS_TABSTOP |
- LBS_NOTIFY | LBS_HASSTRINGS;
- if (m_windowStyle & wxLB_MULTIPLE)
- wstyle |= LBS_MULTIPLESEL;
- else if (m_windowStyle & wxLB_EXTENDED)
- wstyle |= LBS_EXTENDEDSEL;
-
- if (m_windowStyle & wxLB_ALWAYS_SB)
- wstyle |= LBS_DISABLENOSCROLL;
- if (m_windowStyle & wxLB_HSCROLL)
- wstyle |= WS_HSCROLL;
- if (m_windowStyle & wxLB_SORT)
- wstyle |= LBS_SORT;
-
-#if wxUSE_OWNER_DRAWN
- if ( m_windowStyle & wxLB_OWNERDRAW ) {
- // we don't support LBS_OWNERDRAWVARIABLE yet
- wstyle |= LBS_OWNERDRAWFIXED;
- }
-#endif
-
- // Without this style, you get unexpected heights, so e.g. constraint layout
- // doesn't work properly
- wstyle |= LBS_NOINTEGRALHEIGHT;
-
- 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 || wxStyleHasBorder(m_windowStyle) )
+ // create the native control
+ if ( !MSWCreateControl(_T("LISTBOX"), wxEmptyString, pos, size) )
{
- wstyle |= WS_BORDER;
+ // control creation failed
+ return false;
}
- m_hWnd = (WXHWND)::CreateWindowEx(exStyle, wxT("LISTBOX"), NULL,
- wstyle | WS_CHILD,
- 0, 0, 0, 0,
- (HWND)parent->GetHWND(), (HMENU)m_windowId,
- wxGetInstance(), NULL);
-
- wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create listbox") );
-
-#if wxUSE_CTL3D
- if (want3D)
+ // initialize the contents
+ for ( int i = 0; i < n; i++ )
{
- Ctl3dSubclassCtl(GetHwnd());
- m_useCtl3D = TRUE;
- }
-#endif
-
- // Subclass again to catch messages
- SubclassWin(m_hWnd);
-
- size_t ui;
- for (ui = 0; ui < (size_t)n; ui++) {
- Append(choices[ui]);
+ Append(choices[i]);
}
- if ( (m_windowStyle & wxLB_MULTIPLE) == 0 )
- SendMessage(GetHwnd(), LB_SETCURSEL, 0, 0);
+ // now we can compute our best size correctly, so do it if necessary
+ SetBestSize(size);
- SetFont(parent->GetFont());
-
- SetSize(x, y, width, height);
-
- Show(TRUE);
+ return true;
+}
- return TRUE;
+bool wxListBox::Create(wxWindow *parent,
+ wxWindowID id,
+ const wxPoint& pos,
+ const wxSize& size,
+ const wxArrayString& choices,
+ long style,
+ const wxValidator& validator,
+ const wxString& name)
+{
+ wxCArrayString chs(choices);
+ return Create(parent, id, pos, size, chs.GetCount(), chs.GetStrings(),
+ style, validator, name);
}
wxListBox::~wxListBox()
Free();
}
-void wxListBox::SetupColours()
+WXDWORD wxListBox::MSWGetStyle(long style, WXDWORD *exstyle) const
{
- SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
- SetForegroundColour(GetParent()->GetForegroundColour());
+ WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle);
+
+ // always show the vertical scrollbar if necessary -- otherwise it is
+ // impossible to use the control with the mouse
+ msStyle |= WS_VSCROLL;
+
+ // we always want to get the notifications
+ msStyle |= LBS_NOTIFY;
+
+ // without this style, you get unexpected heights, so e.g. constraint
+ // layout doesn't work properly
+ msStyle |= LBS_NOINTEGRALHEIGHT;
+
+ wxASSERT_MSG( !(style & wxLB_MULTIPLE) || !(style & wxLB_EXTENDED),
+ _T("only one of listbox selection modes can be specified") );
+
+ if ( style & wxLB_MULTIPLE )
+ msStyle |= LBS_MULTIPLESEL;
+ else if ( style & wxLB_EXTENDED )
+ msStyle |= LBS_EXTENDEDSEL;
+
+ if ( m_windowStyle & wxLB_ALWAYS_SB )
+ msStyle |= LBS_DISABLENOSCROLL;
+ if ( m_windowStyle & wxLB_HSCROLL )
+ msStyle |= WS_HSCROLL;
+ if ( m_windowStyle & wxLB_SORT )
+ msStyle |= LBS_SORT;
+
+#if wxUSE_OWNER_DRAWN && !defined(__WXWINCE__)
+ if ( m_windowStyle & wxLB_OWNERDRAW )
+ {
+ // we don't support LBS_OWNERDRAWVARIABLE yet and we also always put
+ // the strings in the listbox for simplicity even though we could have
+ // avoided it in this case
+ msStyle |= LBS_OWNERDRAWFIXED | LBS_HASSTRINGS;
+ }
+#endif // wxUSE_OWNER_DRAWN
+
+ return msStyle;
}
// ----------------------------------------------------------------------------
SendMessage(GetHwnd(), LB_DELETESTRING, N, 0);
m_noItems--;
- SetHorizontalExtent("");
+ SetHorizontalExtent(wxEmptyString);
}
int wxListBox::DoAppend(const wxString& item)
{
+ InvalidateBestSize();
+
int index = ListBox_AddString(GetHwnd(), item);
m_noItems++;
#if wxUSE_OWNER_DRAWN
if ( m_windowStyle & wxLB_OWNERDRAW ) {
- wxOwnerDrawn *pNewItem = CreateItem(index); // dummy argument
+ wxOwnerDrawn *pNewItem = CreateLboxItem(index); // dummy argument
pNewItem->SetName(item);
- m_aItems.Add(pNewItem);
+ m_aItems.Insert(pNewItem, index);
ListBox_SetItemData(GetHwnd(), index, pNewItem);
pNewItem->SetFont(GetFont());
}
-#endif
+#endif // wxUSE_OWNER_DRAWN
SetHorizontalExtent(item);
void wxListBox::DoSetItems(const wxArrayString& choices, void** clientData)
{
- ShowWindow(GetHwnd(), SW_HIDE);
+ // avoid flicker - but don't need to do this for a hidden listbox
+ bool hideAndShow = IsShown();
+ if ( hideAndShow )
+ {
+ ShowWindow(GetHwnd(), SW_HIDE);
+ }
ListBox_ResetContent(GetHwnd());
ListBox_AddString(GetHwnd(), choices[i]);
if ( clientData )
{
-#if wxUSE_OWNER_DRAWN
- wxASSERT_MSG(clientData[i] == NULL,
- wxT("Can't use client data with owner-drawn listboxes"));
-#else // !wxUSE_OWNER_DRAWN
- ListBox_SetItemData(GetHwnd(), i, clientData[i]);
-#endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN
+ SetClientData(i, clientData[i]);
}
}
#if wxUSE_OWNER_DRAWN
if ( m_windowStyle & wxLB_OWNERDRAW ) {
// first delete old items
- size_t ui = m_aItems.Count();
- while ( ui-- != 0 ) {
- delete m_aItems[ui];
- }
- m_aItems.Empty();
+ WX_CLEAR_ARRAY(m_aItems);
// then create new ones
- for ( ui = 0; ui < (size_t)m_noItems; ui++ ) {
- wxOwnerDrawn *pNewItem = CreateItem(ui);
+ for ( size_t ui = 0; ui < (size_t)m_noItems; ui++ ) {
+ wxOwnerDrawn *pNewItem = CreateLboxItem(ui);
pNewItem->SetName(choices[ui]);
m_aItems.Add(pNewItem);
ListBox_SetItemData(GetHwnd(), ui, pNewItem);
SetHorizontalExtent();
- ShowWindow(GetHwnd(), SW_SHOW);
+ if ( hideAndShow )
+ {
+ // show the listbox back if we hid it
+ ShowWindow(GetHwnd(), SW_SHOW);
+ }
}
int wxListBox::FindString(const wxString& s) const
#if wxUSE_OWNER_DRAWN
if ( m_windowStyle & wxLB_OWNERDRAW )
{
- size_t uiCount = m_aItems.Count();
- while ( uiCount-- != 0 ) {
- delete m_aItems[uiCount];
- }
-
- m_aItems.Clear();
+ WX_CLEAR_ARRAY(m_aItems);
}
else
#endif // wxUSE_OWNER_DRAWN
}
}
-void wxListBox::SetSelection(int N, bool select)
+void wxListBox::DoSetSelection(int N, bool select)
{
- wxCHECK_RET( N >= 0 && N < m_noItems,
+ wxCHECK_RET( N == wxNOT_FOUND ||
+ (N >= 0 && N < m_noItems),
wxT("invalid index in wxListBox::SetSelection") );
if ( HasMultipleSelection() )
bool wxListBox::IsSelected(int N) const
{
- wxCHECK_MSG( N >= 0 && N < m_noItems, FALSE,
+ wxCHECK_MSG( N >= 0 && N < m_noItems, false,
wxT("invalid index in wxListBox::Selected") );
- return SendMessage(GetHwnd(), LB_GETSEL, N, 0) == 0 ? FALSE : TRUE;
+ return SendMessage(GetHwnd(), LB_GETSEL, N, 0) == 0 ? false : true;
}
wxClientData* wxListBox::DoGetItemClientObject(int n) const
wxLogDebug(wxT("LB_SETITEMDATA failed"));
}
-bool wxListBox::HasMultipleSelection() const
-{
- return (m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED);
-}
-
// Return number of selections and an array of selected integers
int wxListBox::GetSelections(wxArrayInt& aSelections) const
{
if ( HasMultipleSelection() )
{
- int no_sel = ListBox_GetSelCount(GetHwnd());
- if (no_sel != 0) {
- int *selections = new int[no_sel];
- int rc = ListBox_GetSelItems(GetHwnd(), no_sel, selections);
-
- wxCHECK_MSG(rc != LB_ERR, -1, wxT("ListBox_GetSelItems failed"));
-
- aSelections.Alloc(no_sel);
- for ( int n = 0; n < no_sel; n++ )
- aSelections.Add(selections[n]);
+ int countSel = ListBox_GetSelCount(GetHwnd());
+ if ( countSel == LB_ERR )
+ {
+ wxLogDebug(_T("ListBox_GetSelCount failed"));
+ }
+ else if ( countSel != 0 )
+ {
+ int *selections = new int[countSel];
+
+ if ( ListBox_GetSelItems(GetHwnd(),
+ countSel, selections) == LB_ERR )
+ {
+ wxLogDebug(wxT("ListBox_GetSelItems failed"));
+ countSel = -1;
+ }
+ else
+ {
+ aSelections.Alloc(countSel);
+ for ( int n = 0; n < countSel; n++ )
+ aSelections.Add(selections[n]);
+ }
delete [] selections;
}
- return no_sel;
+ return countSel;
}
else // single-selection listbox
{
- aSelections.Add(ListBox_GetCurSel(GetHwnd()));
+ if (ListBox_GetCurSel(GetHwnd()) > -1)
+ aSelections.Add(ListBox_GetCurSel(GetHwnd()));
- return 1;
+ return aSelections.Count();
}
}
{
wxCHECK_MSG( !HasMultipleSelection(),
-1,
- wxT("GetSelection() can't be used with multiple-selection "
- "listboxes, use GetSelections() instead.") );
+ wxT("GetSelection() can't be used with multiple-selection listboxes, use GetSelections() instead.") );
return ListBox_GetCurSel(GetHwnd());
}
// Find string for position
wxString wxListBox::GetString(int N) const
{
- wxCHECK_MSG( N >= 0 && N < m_noItems, "",
- wxT("invalid index in wxListBox::GetClientData") );
+ wxCHECK_MSG( N >= 0 && N < m_noItems, wxEmptyString,
+ wxT("invalid index in wxListBox::GetString") );
int len = ListBox_GetTextLen(GetHwnd(), N);
// +1 for terminating NUL
wxString result;
- ListBox_GetText(GetHwnd(), N, result.GetWriteBuf(len + 1));
- result.UngetWriteBuf();
+ ListBox_GetText(GetHwnd(), N, (wxChar*)wxStringBuffer(result, len + 1));
return result;
}
wxCHECK_RET( pos >= 0 && pos <= m_noItems,
wxT("invalid index in wxListBox::InsertItems") );
+ InvalidateBestSize();
+
int nItems = items.GetCount();
for ( int i = 0; i < nItems; i++ )
- ListBox_InsertString(GetHwnd(), i + pos, items[i]);
+ {
+ int idx = ListBox_InsertString(GetHwnd(), i + pos, items[i]);
+
+#if wxUSE_OWNER_DRAWN
+ if ( m_windowStyle & wxLB_OWNERDRAW )
+ {
+ wxOwnerDrawn *pNewItem = CreateLboxItem(idx);
+ pNewItem->SetName(items[i]);
+ pNewItem->SetFont(GetFont());
+ m_aItems.Insert(pNewItem, idx);
+
+ ListBox_SetItemData(GetHwnd(), idx, pNewItem);
+ }
+#else
+ wxUnusedVar(idx);
+#endif // wxUSE_OWNER_DRAWN
+ }
+
m_noItems += nItems;
SetHorizontalExtent();
void *oldData = NULL;
wxClientData *oldObjData = NULL;
- if ( m_clientDataItemsType == ClientData_Void )
+ if ( m_clientDataItemsType == wxClientData_Void )
oldData = GetClientData(N);
- else if ( m_clientDataItemsType == ClientData_Object )
+ else if ( m_clientDataItemsType == wxClientData_Object )
oldObjData = GetClientObject(N);
// delete and recreate it
else if ( oldObjData )
SetClientObject(N, oldObjData);
- // we may have lost the selection
- if ( wasSelected )
- Select(N);
-
#if wxUSE_OWNER_DRAWN
if ( m_windowStyle & wxLB_OWNERDRAW )
+ {
// update item's text
m_aItems[N]->SetName(s);
+
+ // reassign the item's data
+ ListBox_SetItemData(GetHwnd(), N, m_aItems[N]);
+ }
#endif //USE_OWNER_DRAWN
+
+ // we may have lost the selection
+ if ( wasSelected )
+ Select(N);
}
int wxListBox::GetCount() const
return;
TEXTMETRIC lpTextMetric;
- if ( !s.IsEmpty() )
+ if ( !s.empty() )
{
int existingExtent = (int)SendMessage(GetHwnd(), LB_GETHORIZONTALEXTENT, 0, 0L);
HDC dc = GetWindowDC(GetHwnd());
HFONT oldFont = 0;
- if (GetFont().Ok() && GetFont().GetResourceHandle())
+ if (GetFont().Ok() && GetFont().GetResourceHandle() != 0)
oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle());
GetTextMetrics(dc, &lpTextMetric);
int largestExtent = 0;
HDC dc = GetWindowDC(GetHwnd());
HFONT oldFont = 0;
- if (GetFont().Ok() && GetFont().GetResourceHandle())
+ if (GetFont().Ok() && GetFont().GetResourceHandle() != 0)
oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle());
GetTextMetrics(dc, &lpTextMetric);
- int i;
- for (i = 0; i < m_noItems; i++)
+
+ for (int i = 0; i < m_noItems; i++)
{
- int len = (int)SendMessage(GetHwnd(), LB_GETTEXT, i, (LONG)wxBuffer);
- wxBuffer[len] = 0;
+ wxString str = GetString(i);
SIZE extentXY;
- ::GetTextExtentPoint(dc, (LPTSTR)wxBuffer, len, &extentXY);
+ ::GetTextExtentPoint(dc, str.c_str(), str.length(), &extentXY);
int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
if (extentX > largestExtent)
largestExtent = extentX;
// the listbox should be slightly larger than the widest string
int cx, cy;
- wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
+ wxGetCharSize(GetHWND(), &cx, &cy, GetFont());
wListbox += 3*cx;
- int hListbox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)*(wxMax(m_noItems, 7));
+ // Add room for the scrollbar
+ wListbox += wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);
+
+ // don't make the listbox too tall (limit height to 10 items) but don't
+ // make it too small neither
+ int hListbox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)*
+ wxMin(wxMax(m_noItems, 3), 10);
return wxSize(wListbox, hListbox);
}
bool wxListBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
{
+ wxEventType evtType;
if ( param == LBN_SELCHANGE )
{
- wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, m_windowId);
- event.SetEventObject( this );
-
- wxArrayInt aSelections;
- int n, count = GetSelections(aSelections);
- if ( count > 0 )
- {
- n = aSelections[0];
- if ( HasClientObjectData() )
- event.SetClientObject( GetClientObject(n) );
- else if ( HasClientUntypedData() )
- event.SetClientData( GetClientData(n) );
- event.SetString( GetString(n) );
- }
- else
- {
- n = -1;
- }
-
- event.m_commandInt = n;
-
- return GetEventHandler()->ProcessEvent(event);
+ evtType = wxEVT_COMMAND_LISTBOX_SELECTED;
}
else if ( param == LBN_DBLCLK )
{
- wxCommandEvent event(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, m_windowId);
- event.SetEventObject( this );
+ evtType = wxEVT_COMMAND_LISTBOX_DOUBLECLICKED;
+ }
+ else
+ {
+ // some event we're not interested in
+ return false;
+ }
+
+ wxCommandEvent event(evtType, m_windowId);
+ event.SetEventObject( this );
+
+ // retrieve the affected item
+ int n = SendMessage(GetHwnd(), LB_GETCARETINDEX, 0, 0);
+ if ( n != LB_ERR )
+ {
+ if ( HasClientObjectData() )
+ event.SetClientObject( GetClientObject(n) );
+ else if ( HasClientUntypedData() )
+ event.SetClientData( GetClientData(n) );
- return GetEventHandler()->ProcessEvent(event);
+ event.SetString( GetString(n) );
+ event.SetExtraLong( HasMultipleSelection() ? IsSelected(n) : true );
}
- //else:
- return FALSE;
+ event.SetInt(n);
+
+ return GetEventHandler()->ProcessEvent(event);
}
// ----------------------------------------------------------------------------
bool wxListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
{
// only owner-drawn control should receive this message
- wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
+ wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), false );
MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item;
+#ifdef __WXWINCE__
+ HDC hdc = GetDC(NULL);
+#else
HDC hdc = CreateIC(wxT("DISPLAY"), NULL, NULL, 0);
+#endif
wxDC dc;
dc.SetHDC((WXHDC)hdc);
- dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_ANSI_VAR_FONT));
+ dc.SetFont(GetFont());
pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE;
pStruct->itemWidth = dc.GetCharWidth();
DeleteDC(hdc);
- return TRUE;
+ return true;
}
// forward the message to the appropriate item
bool wxListBox::MSWOnDraw(WXDRAWITEMSTRUCT *item)
{
// only owner-drawn control should receive this message
- wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
+ wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), false );
DRAWITEMSTRUCT *pStruct = (DRAWITEMSTRUCT *)item;
+ UINT itemID = pStruct->itemID;
+
+ // the item may be -1 for an empty listbox
+ if ( itemID == (UINT)-1 )
+ return false;
long data = ListBox_GetItemData(GetHwnd(), pStruct->itemID);
- wxCHECK( data && (data != LB_ERR), FALSE );
+ wxCHECK( data && (data != LB_ERR), false );
wxListBoxItem *pItem = (wxListBoxItem *)data;
- wxDC dc;
- dc.SetHDC((WXHDC)pStruct->hDC, FALSE);
- wxRect rect(wxPoint(pStruct->rcItem.left, pStruct->rcItem.top),
- wxPoint(pStruct->rcItem.right, pStruct->rcItem.bottom));
+ wxDCTemp dc((WXHDC)pStruct->hDC);
+ wxPoint pt1(pStruct->rcItem.left, pStruct->rcItem.top);
+ wxPoint pt2(pStruct->rcItem.right, pStruct->rcItem.bottom);
+ wxRect rect(pt1, pt2);
return pItem->OnDrawItem(dc, rect,
- (wxOwnerDrawn::wxODAction)pStruct->itemAction,
- (wxOwnerDrawn::wxODStatus)pStruct->itemState);
+ (wxOwnerDrawn::wxODAction)pStruct->itemAction,
+ (wxOwnerDrawn::wxODStatus)pStruct->itemState);
}
-#endif
- // wxUSE_OWNER_DRAWN
+#endif // wxUSE_OWNER_DRAWN
+
+#endif // wxUSE_LISTBOX
projects / wxWidgets.git / blobdiff