///////////////////////////////////////////////////////////////////////////////
-// 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__
- #pragma implementation "listbox.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#pragma hdrstop
#endif
-#include "wx/window.h"
-#include "wx/msw/private.h"
+#if wxUSE_LISTBOX
-#ifndef WX_PRECOMP
#include "wx/listbox.h"
-#include "wx/settings.h"
-#include "wx/brush.h"
-#include "wx/font.h"
-#include "wx/dc.h"
-#include "wx/utils.h"
-#endif
-
-#include <windowsx.h>
-#ifdef __WXWINE__
- #if defined(GetWindowStyle)
- #undef GetWindowStyle
- #endif
+#ifndef WX_PRECOMP
+ #include "wx/dynarray.h"
+ #include "wx/settings.h"
+ #include "wx/brush.h"
+ #include "wx/font.h"
+ #include "wx/dc.h"
+ #include "wx/utils.h"
+ #include "wx/log.h"
+ #include "wx/window.h"
#endif
-#include "wx/dynarray.h"
-#include "wx/log.h"
+#include "wx/msw/private.h"
+#include "wx/msw/dc.h"
+
+#include <windowsx.h>
#if wxUSE_OWNER_DRAWN
#include "wx/ownerdrw.h"
#endif
-#ifndef __TWIN32__
- #ifdef __GNUWIN32_OLD__
- #include "wx/msw/gnuwin32/extra.h"
- #endif
-#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
-#endif
-
- IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
-
// ============================================================================
// list box item declaration and implementation
// ============================================================================
class wxListBoxItem : public wxOwnerDrawn
{
public:
- wxListBoxItem(const wxString& str = "");
-};
+ wxListBoxItem(wxListBox *parent)
+ { m_parent = parent; }
-wxListBoxItem::wxListBoxItem(const wxString& str) : wxOwnerDrawn(str, FALSE)
-{
- // no bitmaps/checkmarks
- SetMarginWidth(0);
-}
+ wxListBox *GetParent() const
+ { return m_parent; }
+
+ int GetIndex() const
+ { return m_parent->GetItemIndex(const_cast<wxListBoxItem*>(this)); }
+
+ wxString GetName() const
+ { return m_parent->GetString(GetIndex()); }
+
+private:
+ wxListBox *m_parent;
+};
-wxOwnerDrawn *wxListBox::CreateItem(size_t n)
+wxOwnerDrawn *wxListBox::CreateLboxItem(size_t WXUNUSED(n))
{
- return new wxListBoxItem();
+ return new wxListBoxItem(this);
}
#endif //USE_OWNER_DRAWN
// creation
// ----------------------------------------------------------------------------
-// Listbox item
-wxListBox::wxListBox()
+void wxListBox::Init()
{
m_noItems = 0;
- m_selected = 0;
+ m_updateHorizontalExtent = false;
+ m_selectedByKeyboard = false;
}
bool wxListBox::Create(wxWindow *parent,
const wxValidator& validator,
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);
-
- 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 /* | WS_CLIPSIBLINGS */;
- 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;
+ // initialize base class fields
+ if ( !CreateControl(parent, id, pos, size, style, validator, name) )
+ return false;
-#if wxUSE_OWNER_DRAWN
- if ( m_windowStyle & wxLB_OWNERDRAW ) {
- // we don't support LBS_OWNERDRAWVARIABLE yet
- wstyle |= LBS_OWNERDRAWFIXED;
+ // create the native control
+ if ( !MSWCreateControl(wxT("LISTBOX"), wxEmptyString, pos, size) )
+ {
+ // control creation failed
+ return false;
}
-#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) )
+ // initialize the contents
+ for ( int i = 0; i < n; i++ )
{
- wstyle |= WS_BORDER;
+ Append(choices[i]);
}
- m_hWnd = (WXHWND)::CreateWindowEx(exStyle, wxT("LISTBOX"), NULL,
- wstyle | WS_CHILD,
- 0, 0, 0, 0,
- (HWND)parent->GetHWND(), (HMENU)m_windowId,
- wxGetInstance(), NULL);
+ // now we can compute our best size correctly, so do it again
+ SetInitialSize(size);
+
+ return true;
+}
- wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create listbox") );
+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);
+}
-#if wxUSE_CTL3D
- if (want3D)
- {
- Ctl3dSubclassCtl(GetHwnd());
- m_useCtl3D = TRUE;
- }
-#endif
+wxListBox::~wxListBox()
+{
+ Clear();
+}
+
+WXDWORD wxListBox::MSWGetStyle(long style, WXDWORD *exstyle) const
+{
+ WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle);
- // Subclass again to catch messages
- SubclassWin(m_hWnd);
+ // we always want to get the notifications
+ msStyle |= LBS_NOTIFY;
- size_t ui;
- for (ui = 0; ui < (size_t)n; ui++) {
- Append(choices[ui]);
- }
+ // without this style, you get unexpected heights, so e.g. constraint
+ // layout doesn't work properly
+ msStyle |= LBS_NOINTEGRALHEIGHT;
- if ( (m_windowStyle & wxLB_MULTIPLE) == 0 )
- SendMessage(GetHwnd(), LB_SETCURSEL, 0, 0);
+ wxASSERT_MSG( !(style & wxLB_MULTIPLE) || !(style & wxLB_EXTENDED),
+ wxT("only one of listbox selection modes can be specified") );
- SetFont(parent->GetFont());
+ if ( style & wxLB_MULTIPLE )
+ msStyle |= LBS_MULTIPLESEL;
+ else if ( style & wxLB_EXTENDED )
+ msStyle |= LBS_EXTENDEDSEL;
+
+ wxASSERT_MSG( !(style & wxLB_ALWAYS_SB) || !(style & wxLB_NO_SB),
+ wxT( "Conflicting styles wxLB_ALWAYS_SB and wxLB_NO_SB." ) );
+
+ if ( !(style & wxLB_NO_SB) )
+ {
+ msStyle |= WS_VSCROLL;
+ if ( style & wxLB_ALWAYS_SB )
+ msStyle |= LBS_DISABLENOSCROLL;
+ }
- SetSize(x, y, width, height);
+ if ( m_windowStyle & wxLB_HSCROLL )
+ msStyle |= WS_HSCROLL;
+ if ( m_windowStyle & wxLB_SORT )
+ msStyle |= LBS_SORT;
- return TRUE;
+#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;
}
-wxListBox::~wxListBox()
+void wxListBox::OnInternalIdle()
{
- Free();
+ wxWindow::OnInternalIdle();
+
+ if (m_updateHorizontalExtent)
+ {
+ SetHorizontalExtent(wxEmptyString);
+ m_updateHorizontalExtent = false;
+ }
}
-void wxListBox::SetupColours()
+void wxListBox::MSWOnItemsChanged()
{
- SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
- SetForegroundColour(GetParent()->GetForegroundColour());
+ // we need to do two things when items change: update their max horizontal
+ // extent so that horizontal scrollbar could be shown or hidden as
+ // appropriate and also invlaidate the best size
+ //
+ // updating the max extent is slow (it's an O(N) operation) and so we defer
+ // it until the idle time but the best size should be invalidated
+ // immediately doing it in idle time is too late -- layout using incorrect
+ // old best size will have been already done by then
+
+ m_updateHorizontalExtent = true;
+
+ InvalidateBestSize();
}
// ----------------------------------------------------------------------------
void wxListBox::DoSetFirstItem(int N)
{
- wxCHECK_RET( N >= 0 && N < m_noItems,
+ wxCHECK_RET( IsValid(N),
wxT("invalid index in wxListBox::SetFirstItem") );
SendMessage(GetHwnd(), LB_SETTOPINDEX, (WPARAM)N, (LPARAM)0);
}
-void wxListBox::Delete(int N)
+void wxListBox::DoDeleteOneItem(unsigned int n)
{
- wxCHECK_RET( N >= 0 && N < m_noItems,
+ wxCHECK_RET( IsValid(n),
wxT("invalid index in wxListBox::Delete") );
- // for owner drawn objects, the data is used for storing wxOwnerDrawn
- // pointers and we shouldn't touch it
-#if !wxUSE_OWNER_DRAWN
- if ( !(m_windowStyle & wxLB_OWNERDRAW) )
-#endif // !wxUSE_OWNER_DRAWN
- if ( HasClientObjectData() )
- {
- delete GetClientObject(N);
- }
-
- SendMessage(GetHwnd(), LB_DELETESTRING, N, 0);
- m_noItems--;
-
- SetHorizontalExtent("");
-}
-
-int wxListBox::DoAppend(const wxString& item)
-{
- int index = ListBox_AddString(GetHwnd(), item);
- m_noItems++;
-
#if wxUSE_OWNER_DRAWN
- if ( m_windowStyle & wxLB_OWNERDRAW ) {
- wxOwnerDrawn *pNewItem = CreateItem(index); // dummy argument
- pNewItem->SetName(item);
- m_aItems.Add(pNewItem);
- ListBox_SetItemData(GetHwnd(), index, pNewItem);
- pNewItem->SetFont(GetFont());
- }
-#endif
-
- SetHorizontalExtent(item);
-
- return index;
-}
-
-void wxListBox::DoSetItems(const wxArrayString& choices, void** clientData)
-{
- // avoid flicker - but don't need to do this for a hidden listbox
- bool hideAndShow = IsShown();
- if ( hideAndShow )
+ if ( HasFlag(wxLB_OWNERDRAW) )
{
- ShowWindow(GetHwnd(), SW_HIDE);
- }
-
- ListBox_ResetContent(GetHwnd());
-
- m_noItems = choices.GetCount();
- int i;
- for (i = 0; i < m_noItems; i++)
- {
- ListBox_AddString(GetHwnd(), choices[i]);
- if ( clientData )
- {
-#if wxUSE_OWNER_DRAWN
- if ( m_windowStyle & wxLB_OWNERDRAW )
- {
- wxASSERT_MSG(clientData[i] == NULL,
- wxT("Can't use client data with owner-drawn listboxes"));
- }
- ListBox_SetItemData(GetHwnd(), i, clientData[i]);
-#else // !wxUSE_OWNER_DRAWN
- ListBox_SetItemData(GetHwnd(), i, clientData[i]);
-#endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN
- }
- }
-
-#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();
-
- // then create new ones
- for ( ui = 0; ui < (size_t)m_noItems; ui++ ) {
- wxOwnerDrawn *pNewItem = CreateItem(ui);
- pNewItem->SetName(choices[ui]);
- m_aItems.Add(pNewItem);
- ListBox_SetItemData(GetHwnd(), ui, pNewItem);
- }
+ delete m_aItems[n];
+ m_aItems.RemoveAt(n);
}
#endif // wxUSE_OWNER_DRAWN
- SetHorizontalExtent();
+ SendMessage(GetHwnd(), LB_DELETESTRING, n, 0);
+ m_noItems--;
- if ( hideAndShow )
- {
- // show the listbox back if we hid it
- ShowWindow(GetHwnd(), SW_SHOW);
- }
+ MSWOnItemsChanged();
+
+ UpdateOldSelections();
}
-int wxListBox::FindString(const wxString& s) const
+int wxListBox::FindString(const wxString& s, bool bCase) const
{
- int pos = ListBox_FindStringExact(GetHwnd(), (WPARAM)-1, s);
+ // back to base class search for not native search type
+ if (bCase)
+ return wxItemContainerImmutable::FindString( s, bCase );
+
+ int pos = ListBox_FindStringExact(GetHwnd(), -1, s.wx_str());
if (pos == LB_ERR)
return wxNOT_FOUND;
else
return pos;
}
-void wxListBox::Clear()
+void wxListBox::DoClear()
{
- Free();
+#if wxUSE_OWNER_DRAWN
+ if ( HasFlag(wxLB_OWNERDRAW) )
+ {
+ WX_CLEAR_ARRAY(m_aItems);
+ }
+#endif // wxUSE_OWNER_DRAWN
ListBox_ResetContent(GetHwnd());
m_noItems = 0;
- SetHorizontalExtent();
-}
+ MSWOnItemsChanged();
-void wxListBox::Free()
-{
-#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();
- }
- else
-#endif // wxUSE_OWNER_DRAWN
- if ( HasClientObjectData() )
- {
- for ( size_t n = 0; n < (size_t)m_noItems; n++ )
- {
- delete GetClientObject(n);
- }
- }
+ UpdateOldSelections();
}
-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 || IsValid(N),
wxT("invalid index in wxListBox::SetSelection") );
if ( HasMultipleSelection() )
{
- SendMessage(GetHwnd(), LB_SETSEL, select, N);
+ // Setting selection to -1 should deselect everything.
+ const bool deselectAll = N == wxNOT_FOUND;
+ SendMessage(GetHwnd(), LB_SETSEL,
+ deselectAll ? FALSE : select,
+ deselectAll ? -1 : N);
}
else
{
SendMessage(GetHwnd(), LB_SETCURSEL, select ? N : -1, 0);
}
+
+ UpdateOldSelections();
}
bool wxListBox::IsSelected(int N) const
{
- wxCHECK_MSG( N >= 0 && N < m_noItems, FALSE,
+ wxCHECK_MSG( IsValid(N), 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
+void *wxListBox::DoGetItemClientData(unsigned int n) const
{
- return (wxClientData *)DoGetItemClientData(n);
-}
-
-void *wxListBox::DoGetItemClientData(int n) const
-{
- wxCHECK_MSG( n >= 0 && n < m_noItems, NULL,
- wxT("invalid index in wxListBox::GetClientData") );
+ LPARAM rc = SendMessage(GetHwnd(), LB_GETITEMDATA, n, 0);
+ if ( rc == LB_ERR && GetLastError() != ERROR_SUCCESS )
+ {
+ wxLogLastError(wxT("LB_GETITEMDATA"));
- return (void *)SendMessage(GetHwnd(), LB_GETITEMDATA, n, 0);
-}
+ return NULL;
+ }
-void wxListBox::DoSetItemClientObject(int n, wxClientData* clientData)
-{
- DoSetItemClientData(n, clientData);
+ return (void *)rc;
}
-void wxListBox::DoSetItemClientData(int n, void *clientData)
+void wxListBox::DoSetItemClientData(unsigned int n, void *clientData)
{
- wxCHECK_RET( n >= 0 && n < m_noItems,
- wxT("invalid index in wxListBox::SetClientData") );
-
-#if wxUSE_OWNER_DRAWN
- if ( m_windowStyle & wxLB_OWNERDRAW )
- {
- // client data must be pointer to wxOwnerDrawn, otherwise we would crash
- // in OnMeasure/OnDraw.
- wxFAIL_MSG(wxT("Can't use client data with owner-drawn listboxes"));
- }
-#endif // wxUSE_OWNER_DRAWN
-
if ( ListBox_SetItemData(GetHwnd(), n, clientData) == LB_ERR )
+ {
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
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"));
+ int countSel = ListBox_GetSelCount(GetHwnd());
+ if ( countSel == LB_ERR )
+ {
+ wxLogDebug(wxT("ListBox_GetSelCount failed"));
+ }
+ else if ( countSel != 0 )
+ {
+ int *selections = new int[countSel];
- aSelections.Alloc(no_sel);
- for ( int n = 0; n < no_sel; n++ )
- aSelections.Add(selections[n]);
+ 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
{
}
// Find string for position
-wxString wxListBox::GetString(int N) const
+wxString wxListBox::GetString(unsigned int n) const
{
- wxCHECK_MSG( N >= 0 && N < m_noItems, "",
- wxT("invalid index in wxListBox::GetClientData") );
+ wxCHECK_MSG( IsValid(n), wxEmptyString,
+ wxT("invalid index in wxListBox::GetString") );
- int len = ListBox_GetTextLen(GetHwnd(), N);
+ 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;
}
-void
-wxListBox::DoInsertItems(const wxArrayString& items, int pos)
+int wxListBox::DoInsertItems(const wxArrayStringsAdapter & items,
+ unsigned int pos,
+ void **clientData,
+ wxClientDataType type)
{
- wxCHECK_RET( pos >= 0 && pos <= m_noItems,
- wxT("invalid index in wxListBox::InsertItems") );
+ MSWAllocStorage(items, LB_INITSTORAGE);
+
+ const bool append = pos == GetCount();
+
+ // we must use CB_ADDSTRING when appending as only it works correctly for
+ // the sorted controls
+ const unsigned msg = append ? LB_ADDSTRING : LB_INSERTSTRING;
+
+ if ( append )
+ pos = 0;
+
+ int n = wxNOT_FOUND;
- int nItems = items.GetCount();
- for ( int i = 0; i < nItems; i++ )
- ListBox_InsertString(GetHwnd(), i + pos, items[i]);
- m_noItems += nItems;
+ const unsigned int numItems = items.GetCount();
+ for ( unsigned int i = 0; i < numItems; i++ )
+ {
+ n = MSWInsertOrAppendItem(pos, items[i], msg);
+ if ( n == wxNOT_FOUND )
+ return n;
+
+ if ( !append )
+ pos++;
+
+ ++m_noItems;
+
+#if wxUSE_OWNER_DRAWN
+ if ( HasFlag(wxLB_OWNERDRAW) )
+ {
+ wxOwnerDrawn *pNewItem = CreateLboxItem(n);
+ pNewItem->SetFont(GetFont());
+ m_aItems.Insert(pNewItem, n);
+ }
+#endif // wxUSE_OWNER_DRAWN
+ AssignNewItemClientData(n, clientData, i, type);
+ }
+
+ MSWOnItemsChanged();
+
+ UpdateOldSelections();
+
+ return n;
+}
+
+int wxListBox::DoHitTestList(const wxPoint& point) const
+{
+ LRESULT lRes = ::SendMessage(GetHwnd(), LB_ITEMFROMPOINT,
+ 0, MAKELPARAM(point.x, point.y));
- SetHorizontalExtent();
+ // non zero high-order word means that this item is outside of the client
+ // area, IOW the point is outside of the listbox
+ return HIWORD(lRes) ? wxNOT_FOUND : LOWORD(lRes);
}
-void wxListBox::SetString(int N, const wxString& s)
+void wxListBox::SetString(unsigned int n, const wxString& s)
{
- wxCHECK_RET( N >= 0 && N < m_noItems,
+ wxCHECK_RET( IsValid(n),
wxT("invalid index in wxListBox::SetString") );
// remember the state of the item
- bool wasSelected = IsSelected(N);
+ bool wasSelected = IsSelected(n);
void *oldData = NULL;
wxClientData *oldObjData = NULL;
- if ( m_clientDataItemsType == ClientData_Void )
- oldData = GetClientData(N);
- else if ( m_clientDataItemsType == ClientData_Object )
- oldObjData = GetClientObject(N);
+ if ( HasClientUntypedData() )
+ oldData = GetClientData(n);
+ else if ( HasClientObjectData() )
+ oldObjData = GetClientObject(n);
// delete and recreate it
- SendMessage(GetHwnd(), LB_DELETESTRING, N, 0);
+ SendMessage(GetHwnd(), LB_DELETESTRING, n, 0);
- int newN = N;
- if ( N == m_noItems - 1 )
+ int newN = n;
+ if ( n == (m_noItems - 1) )
newN = -1;
- ListBox_InsertString(GetHwnd(), newN, s);
+ ListBox_InsertString(GetHwnd(), newN, s.wx_str());
// restore the client data
if ( oldData )
- SetClientData(N, oldData);
+ SetClientData(n, oldData);
else if ( oldObjData )
- SetClientObject(N, oldObjData);
+ SetClientObject(n, oldObjData);
// we may have lost the selection
if ( wasSelected )
- Select(N);
+ Select(n);
-#if wxUSE_OWNER_DRAWN
- if ( m_windowStyle & wxLB_OWNERDRAW )
- // update item's text
- m_aItems[N]->SetName(s);
-#endif //USE_OWNER_DRAWN
+ MSWOnItemsChanged();
}
-int wxListBox::GetCount() const
+unsigned int wxListBox::GetCount() const
{
return m_noItems;
}
// ----------------------------------------------------------------------------
-// helpers
+// size-related stuff
// ----------------------------------------------------------------------------
-// Windows-specific code to set the horizontal extent of the listbox, if
-// necessary. If s is non-NULL, it's used to calculate the horizontal extent.
-// Otherwise, all strings are used.
void wxListBox::SetHorizontalExtent(const wxString& s)
{
- // Only necessary if we want a horizontal scrollbar
- if (!(m_windowStyle & wxHSCROLL))
+ // the rest is only necessary if we want a horizontal scrollbar
+ if ( !HasFlag(wxHSCROLL) )
return;
- TEXTMETRIC lpTextMetric;
- if ( !s.IsEmpty() )
- {
- int existingExtent = (int)SendMessage(GetHwnd(), LB_GETHORIZONTALEXTENT, 0, 0L);
- HDC dc = GetWindowDC(GetHwnd());
- HFONT oldFont = 0;
- if (GetFont().Ok() && GetFont().GetResourceHandle())
- oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle());
-
- GetTextMetrics(dc, &lpTextMetric);
- SIZE extentXY;
- ::GetTextExtentPoint(dc, (LPTSTR) (const wxChar *)s, s.Length(), &extentXY);
- int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
- if (oldFont)
- ::SelectObject(dc, oldFont);
+ WindowHDC dc(GetHwnd());
+ SelectInHDC selFont(dc, GetHfontOf(GetFont()));
- ReleaseDC(GetHwnd(), dc);
- if (extentX > existingExtent)
- SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(extentX), 0L);
- }
- else
+ TEXTMETRIC lpTextMetric;
+ ::GetTextMetrics(dc, &lpTextMetric);
+
+ int largestExtent = 0;
+ SIZE extentXY;
+
+ if ( s.empty() )
{
- int largestExtent = 0;
- HDC dc = GetWindowDC(GetHwnd());
- HFONT oldFont = 0;
- if (GetFont().Ok() && GetFont().GetResourceHandle())
- oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle());
-
- GetTextMetrics(dc, &lpTextMetric);
- int i;
- for (i = 0; i < m_noItems; i++)
+ // set extent to the max length of all strings
+ for ( unsigned int i = 0; i < m_noItems; i++ )
{
- int len = (int)SendMessage(GetHwnd(), LB_GETTEXT, i, (LONG)wxBuffer);
- wxBuffer[len] = 0;
- SIZE extentXY;
- ::GetTextExtentPoint(dc, (LPTSTR)wxBuffer, len, &extentXY);
+ const wxString str = GetString(i);
+ ::GetTextExtentPoint32(dc, str.c_str(), str.length(), &extentXY);
+
int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
- if (extentX > largestExtent)
+ if ( extentX > largestExtent )
largestExtent = extentX;
}
- if (oldFont)
- ::SelectObject(dc, oldFont);
+ }
+ else // just increase the extent to the length of this string
+ {
+ int existingExtent = (int)SendMessage(GetHwnd(),
+ LB_GETHORIZONTALEXTENT, 0, 0L);
- ReleaseDC(GetHwnd(), dc);
- SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(largestExtent), 0L);
+ ::GetTextExtentPoint32(dc, s.c_str(), s.length(), &extentXY);
+
+ int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
+ if ( extentX > existingExtent )
+ largestExtent = extentX;
}
+
+ if ( largestExtent )
+ SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(largestExtent), 0L);
+ //else: it shouldn't change
}
-wxSize wxListBox::DoGetBestSize() const
+wxSize wxListBox::DoGetBestClientSize() const
{
// find the widest string
int wLine;
int wListbox = 0;
- for ( int i = 0; i < m_noItems; i++ )
+ for (unsigned int i = 0; i < m_noItems; i++)
{
wxString str(GetString(i));
GetTextExtent(str, &wLine, NULL);
wListbox = 100;
// the listbox should be slightly larger than the widest string
- int cx, cy;
- wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
+ wListbox += 3*GetCharWidth();
- wListbox += 3*cx;
+ // add room for the scrollbar
+ wListbox += wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);
- int hListbox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)*(wxMax(m_noItems, 7));
+ // don't make the listbox too tall (limit height to 10 items) but don't
+ // make it too small neither
+ int hListbox = SendMessage(GetHwnd(), LB_GETITEMHEIGHT, 0, 0)*
+ wxMin(wxMax(m_noItems, 3), 10);
return wxSize(wListbox, hListbox);
}
bool wxListBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
{
+ wxEventType evtType;
+ int n = wxNOT_FOUND;
if ( param == LBN_SELCHANGE )
{
- wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, m_windowId);
- event.SetEventObject( this );
+ if ( HasMultipleSelection() )
+ return CalcAndSendEvent();
- 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
+ evtType = wxEVT_COMMAND_LISTBOX_SELECTED;
+
+ if ( m_selectedByKeyboard )
{
- n = -1;
+ // We shouldn't use the mouse position to find the item as mouse
+ // can be anywhere, ask the listbox itself. Notice that this can't
+ // be used when the item is selected using the mouse however as
+ // LB_GETCARETINDEX will always return a valid item, even if the
+ // mouse is clicked below all the items, which is why we find the
+ // item ourselves below in this case.
+ n = SendMessage(GetHwnd(), LB_GETCARETINDEX, 0, 0);
}
-
- event.m_commandInt = n;
-
- return GetEventHandler()->ProcessEvent(event);
+ //else: n will be determined below from the mouse position
}
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;
+ }
+
+ // Find the item position if it was a mouse-generated selection event or a
+ // double click event (which is always generated using the mouse)
+ if ( n == wxNOT_FOUND )
+ {
+ const DWORD pos = ::GetMessagePos();
+ const wxPoint pt(GET_X_LPARAM(pos), GET_Y_LPARAM(pos));
+ n = HitTest(ScreenToClient(wxPoint(pt)));
+ }
+
+ // We get events even when mouse is clicked outside of any valid item from
+ // Windows, just ignore them.
+ if ( n == wxNOT_FOUND )
+ return false;
- return GetEventHandler()->ProcessEvent(event);
+ if ( param == LBN_SELCHANGE )
+ {
+ if ( !DoChangeSingleSelection(n) )
+ return false;
}
- //else:
- return FALSE;
+ // Do generate an event otherwise.
+ return SendEvent(evtType, n, true /* selection */);
+}
+
+WXLRESULT
+wxListBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+{
+ // Remember whether there was a keyboard or mouse event before
+ // LBN_SELCHANGE: this allows us to correctly determine the item affected
+ // by it in MSWCommand() above in any case.
+ if ( WM_KEYFIRST <= nMsg && nMsg <= WM_KEYLAST )
+ m_selectedByKeyboard = true;
+ else if ( WM_MOUSEFIRST <= nMsg && nMsg <= WM_MOUSELAST )
+ m_selectedByKeyboard = false;
+
+ return wxListBoxBase::MSWWindowProc(nMsg, wParam, lParam);
}
// ----------------------------------------------------------------------------
-// wxCheckListBox support
+// owner-drawn list boxes support
// ----------------------------------------------------------------------------
#if wxUSE_OWNER_DRAWN
+// misc overloaded methods
+// -----------------------
+
+bool wxListBox::SetFont(const wxFont &font)
+{
+ if ( HasFlag(wxLB_OWNERDRAW) )
+ {
+ const unsigned count = m_aItems.GetCount();
+ for ( unsigned i = 0; i < count; i++ )
+ m_aItems[i]->SetFont(font);
+ }
+
+ wxListBoxBase::SetFont(font);
+
+ return true;
+}
+
+bool wxListBox::GetItemRect(size_t n, wxRect& rect) const
+{
+ wxCHECK_MSG( IsValid(n), false,
+ wxT("invalid index in wxListBox::GetItemRect") );
+
+ RECT rc;
+
+ if ( ListBox_GetItemRect(GetHwnd(), n, &rc) != LB_ERR )
+ {
+ rect = wxRectFromRECT(rc);
+ return true;
+ }
+ else
+ {
+ // couldn't retrieve rect: for example, item isn't visible
+ return false;
+ }
+}
+
+bool wxListBox::RefreshItem(size_t n)
+{
+ wxRect rect;
+ if ( !GetItemRect(n, rect) )
+ return false;
+
+ RECT rc;
+ wxCopyRectToRECT(rect, rc);
+
+ return ::InvalidateRect((HWND)GetHWND(), &rc, FALSE) == TRUE;
+}
+
+
// drawing
// -------
-// space beneath/above each row in pixels
-// "standard" checklistbox use 1 here, some might prefer 2. 0 is ugly.
-#define OWNER_DRAWN_LISTBOX_EXTRA_SPACE (1)
+namespace
+{
+ // space beneath/above each row in pixels
+ static const int LISTBOX_EXTRA_SPACE = 1;
+
+} // anonymous namespace
// the height is the same for all items
// TODO should be changed for LBS_OWNERDRAWVARIABLE style listboxes
bool wxListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
{
// only owner-drawn control should receive this message
- wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
+ wxCHECK( HasFlag(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));
-
- pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE;
- pStruct->itemWidth = dc.GetCharWidth();
+ {
+ wxDCTemp dc((WXHDC)hdc);
+ dc.SetFont(GetFont());
- dc.SetHDC(0);
+ pStruct->itemHeight = dc.GetCharHeight() + 2 * LISTBOX_EXTRA_SPACE;
+ pStruct->itemWidth = dc.GetCharWidth();
+ }
+#ifdef __WXWINCE__
+ ReleaseDC(NULL, hdc);
+#else
DeleteDC(hdc);
+#endif
- 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( HasFlag(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 );
+ if ( pStruct->itemID == (UINT)-1 )
+ return false;
- wxListBoxItem *pItem = (wxListBoxItem *)data;
+ wxListBoxItem *pItem = (wxListBoxItem *)m_aItems[pStruct->itemID];
- 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);
- return pItem->OnDrawItem(dc, rect,
- (wxOwnerDrawn::wxODAction)pStruct->itemAction,
- (wxOwnerDrawn::wxODStatus)pStruct->itemState);
+ return pItem->OnDrawItem(dc, wxRectFromRECT(pStruct->rcItem),
+ (wxOwnerDrawn::wxODAction)pStruct->itemAction,
+ (wxOwnerDrawn::wxODStatus)(pStruct->itemState | wxOwnerDrawn::wxODHidePrefix));
}
-#endif
- // wxUSE_OWNER_DRAWN
+#endif // wxUSE_OWNER_DRAWN
+
+#endif // wxUSE_LISTBOX
projects / wxWidgets.git / blobdiff