X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/223d09f6b523aac674ef9b72a883dfa8d37c5d4e..1ecc323f2609c8afea31948b9eac2d965cc84f5e:/src/msw/listbox.cpp diff --git a/src/msw/listbox.cpp b/src/msw/listbox.cpp index 5374d816a7..69565096f7 100644 --- a/src/msw/listbox.cpp +++ b/src/msw/listbox.cpp @@ -1,18 +1,14 @@ /////////////////////////////////////////////////////////////////////////////// -// 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" @@ -20,72 +16,30 @@ #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 -#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 #if wxUSE_OWNER_DRAWN #include "wx/ownerdrw.h" #endif -#ifndef __TWIN32__ - #if defined(__GNUWIN32__) - #ifndef wxUSE_NORLANDER_HEADERS - #include - #endif - #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 - -#if !USE_SHARED_LIBRARY - IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl) -#endif - // ============================================================================ // list box item declaration and implementation // ============================================================================ @@ -95,18 +49,25 @@ 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(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 @@ -115,55 +76,15 @@ wxOwnerDrawn *wxListBox::CreateItem(size_t n) // list box control implementation // ============================================================================ -bool wxListBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) -{ - /* - if (param == LBN_SELCANCEL) - { - event.extraLong = FALSE; - } - */ - if (param == LBN_SELCHANGE) - { - wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, m_windowId); - wxArrayInt aSelections; - int count = GetSelections(aSelections); - if ( count > 0 ) - { - event.m_commandInt = aSelections[0] ; - event.m_clientData = GetClientData(event.m_commandInt); - wxString str(GetString(event.m_commandInt)); - if (str != wxT("")) - { - event.m_commandString = str; - } - } - else - { - event.m_commandInt = -1 ; - event.m_commandString.Empty(); - } - - event.SetEventObject( this ); - ProcessCommand(event); - return TRUE; - } - else if (param == LBN_DBLCLK) - { - wxCommandEvent event(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, m_windowId); - event.SetEventObject( this ); - GetEventHandler()->ProcessEvent(event) ; - return TRUE; - } - - return FALSE; -} +// ---------------------------------------------------------------------------- +// 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, @@ -175,291 +96,225 @@ bool wxListBox::Create(wxWindow *parent, const wxValidator& validator, const wxString& name) { - m_noItems = 0; - m_hWnd = 0; - m_selected = 0; - - SetName(name); - SetValidator(validator); - - 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; - if (m_windowStyle & wxLB_MULTIPLE) - wstyle |= LBS_MULTIPLESEL; - else if (m_windowStyle & wxLB_EXTENDED) - wstyle |= LBS_EXTENDEDSEL; + // initialize base class fields + if ( !CreateControl(parent, id, pos, size, style, validator, name) ) + return false; - 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; + // 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); - wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create listbox") ); + return true; +} -#if wxUSE_CTL3D - if (want3D) - { - Ctl3dSubclassCtl(GetHwnd()); - m_useCtl3D = TRUE; - } -#endif +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); +} - // Subclass again to catch messages - SubclassWin(m_hWnd); +wxListBox::~wxListBox() +{ + Clear(); +} - size_t ui; - for (ui = 0; ui < (size_t)n; ui++) { - Append(choices[ui]); - } +WXDWORD wxListBox::MSWGetStyle(long style, WXDWORD *exstyle) const +{ + WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle); - if ( (m_windowStyle & wxLB_MULTIPLE) == 0 ) - SendMessage(GetHwnd(), LB_SETCURSEL, 0, 0); + // we always want to get the notifications + msStyle |= LBS_NOTIFY; - SetFont(parent->GetFont()); + // without this style, you get unexpected heights, so e.g. constraint + // layout doesn't work properly + msStyle |= LBS_NOINTEGRALHEIGHT; - SetSize(x, y, width, height); + wxASSERT_MSG( !(style & wxLB_MULTIPLE) || !(style & wxLB_EXTENDED), + wxT("only one of listbox selection modes can be specified") ); - Show(TRUE); + if ( style & wxLB_MULTIPLE ) + msStyle |= LBS_MULTIPLESEL; + else if ( style & wxLB_EXTENDED ) + msStyle |= LBS_EXTENDEDSEL; - return TRUE; -} + wxASSERT_MSG( !(style & wxLB_ALWAYS_SB) || !(style & wxLB_NO_SB), + wxT( "Conflicting styles wxLB_ALWAYS_SB and wxLB_NO_SB." ) ); -wxListBox::~wxListBox() -{ -#if wxUSE_OWNER_DRAWN - size_t uiCount = m_aItems.Count(); - while ( uiCount-- != 0 ) { - delete m_aItems[uiCount]; + if ( !(style & wxLB_NO_SB) ) + { + msStyle |= WS_VSCROLL; + if ( style & wxLB_ALWAYS_SB ) + msStyle |= LBS_DISABLENOSCROLL; } -#endif // wxUSE_OWNER_DRAWN -} -void wxListBox::SetupColours() -{ - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); - SetForegroundColour(GetParent()->GetForegroundColour()); -} + if ( m_windowStyle & wxLB_HSCROLL ) + msStyle |= WS_HSCROLL; + if ( m_windowStyle & wxLB_SORT ) + msStyle |= LBS_SORT; -void wxListBox::SetFirstItem(int N) -{ - wxCHECK_RET( N >= 0 && N < m_noItems, - wxT("invalid index in wxListBox::SetFirstItem") ); +#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 - SendMessage(GetHwnd(),LB_SETTOPINDEX,(WPARAM)N,(LPARAM)0) ; + return msStyle; } -void wxListBox::SetFirstItem(const wxString& s) +void wxListBox::OnInternalIdle() { - int N = FindString(s) ; + wxWindow::OnInternalIdle(); - if ( N >= 0 ) - SetFirstItem(N) ; + if (m_updateHorizontalExtent) + { + SetHorizontalExtent(wxEmptyString); + m_updateHorizontalExtent = false; + } } -void wxListBox::Delete(int N) +void wxListBox::MSWOnItemsChanged() { - wxCHECK_RET( N >= 0 && N < m_noItems, - wxT("invalid index in wxListBox::Delete") ); + // 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 - SendMessage(GetHwnd(), LB_DELETESTRING, N, 0); - m_noItems--; + m_updateHorizontalExtent = true; - SetHorizontalExtent(""); + InvalidateBestSize(); } -void wxListBox::Append(const wxString& item) -{ - int index = ListBox_AddString(GetHwnd(), item); - m_noItems ++; +// ---------------------------------------------------------------------------- +// implementation of wxListBoxBase methods +// ---------------------------------------------------------------------------- -#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); - } -#endif +void wxListBox::DoSetFirstItem(int N) +{ + wxCHECK_RET( IsValid(N), + wxT("invalid index in wxListBox::SetFirstItem") ); - SetHorizontalExtent(item); + SendMessage(GetHwnd(), LB_SETTOPINDEX, (WPARAM)N, (LPARAM)0); } -void wxListBox::Append(const wxString& item, void *Client_data) +void wxListBox::DoDeleteOneItem(unsigned int n) { - int index = ListBox_AddString(GetHwnd(), item); - m_noItems ++; + wxCHECK_RET( IsValid(n), + wxT("invalid index in wxListBox::Delete") ); #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")); - } - else -#endif - - ListBox_SetItemData(GetHwnd(), index, Client_data); - - SetHorizontalExtent(item); -} - -void wxListBox::Set(int n, const wxString *choices, void** clientData) -{ - ShowWindow(GetHwnd(), SW_HIDE); - ListBox_ResetContent(GetHwnd()); - int i; - for (i = 0; i < n; i++) + if ( HasFlag(wxLB_OWNERDRAW) ) { - ListBox_AddString(GetHwnd(), choices[i]); - if ( clientData ) - ListBox_SetItemData(GetHwnd(), i, clientData[i]); + delete m_aItems[n]; + m_aItems.RemoveAt(n); } - m_noItems = n; - -#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(); +#endif // wxUSE_OWNER_DRAWN - // then create new ones - for (ui = 0; ui < (size_t)n; ui++) { - wxOwnerDrawn *pNewItem = CreateItem(ui); - pNewItem->SetName(choices[ui]); - m_aItems.Add(pNewItem); - ListBox_SetItemData(GetHwnd(), ui, pNewItem); + SendMessage(GetHwnd(), LB_DELETESTRING, n, 0); + m_noItems--; - wxASSERT_MSG(clientData[ui] == NULL, - wxT("Can't use client data with owner-drawn listboxes")); - } - } -#endif + MSWOnItemsChanged(); - SetHorizontalExtent(""); - ShowWindow(GetHwnd(), SW_SHOW); + 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 -1; + return wxNOT_FOUND; else return pos; } -void wxListBox::Clear() +void wxListBox::DoClear() { - ListBox_ResetContent(GetHwnd()); - #if wxUSE_OWNER_DRAWN - size_t uiCount = m_aItems.Count(); - while ( uiCount-- != 0 ) { - delete m_aItems[uiCount]; + if ( HasFlag(wxLB_OWNERDRAW) ) + { + WX_CLEAR_ARRAY(m_aItems); } - - m_aItems.Clear(); #endif // wxUSE_OWNER_DRAWN + ListBox_ResetContent(GetHwnd()); + m_noItems = 0; - ListBox_GetHorizontalExtent(GetHwnd()); + MSWOnItemsChanged(); + + 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 ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED)) - SendMessage(GetHwnd(), LB_SETSEL, select, N); + if ( HasMultipleSelection() ) + { + // Setting selection to -1 should deselect everything. + const bool deselectAll = N == wxNOT_FOUND; + SendMessage(GetHwnd(), LB_SETSEL, + deselectAll ? FALSE : select, + deselectAll ? -1 : N); + } else { - int N1 = N; - if (!select) - N1 = -1; - SendMessage(GetHwnd(), LB_SETCURSEL, N1, 0); + SendMessage(GetHwnd(), LB_SETCURSEL, select ? N : -1, 0); } -} - -bool wxListBox::Selected(int N) const -{ - wxCHECK_MSG( N >= 0 && N < m_noItems, FALSE, - wxT("invalid index in wxListBox::Selected") ); - return SendMessage(GetHwnd(), LB_GETSEL, N, 0) == 0 ? FALSE : TRUE; + UpdateOldSelections(); } -void wxListBox::Deselect(int N) +bool wxListBox::IsSelected(int N) const { - wxCHECK_RET( N >= 0 && N < m_noItems, - wxT("invalid index in wxListBox::Deselect") ); + wxCHECK_MSG( IsValid(N), false, + wxT("invalid index in wxListBox::Selected") ); - if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED)) - SendMessage(GetHwnd(), LB_SETSEL, FALSE, N); + return SendMessage(GetHwnd(), LB_GETSEL, N, 0) == 0 ? false : true; } -void *wxListBox::GetClientData(int N) const +void *wxListBox::DoGetItemClientData(unsigned int n) const { - wxCHECK_MSG( N >= 0 && N < m_noItems, NULL, - wxT("invalid index in wxListBox::GetClientData") ); - - return (void *)SendMessage(GetHwnd(), LB_GETITEMDATA, N, 0); + return (void *)SendMessage(GetHwnd(), LB_GETITEMDATA, n, 0); } -void wxListBox::SetClientData(int N, void *Client_data) +void wxListBox::DoSetItemClientData(unsigned int n, void *clientData) { - wxCHECK_RET( N >= 0 && N < m_noItems, - wxT("invalid index in wxListBox::SetClientData") ); - - if ( ListBox_SetItemData(GetHwnd(), N, Client_data) == LB_ERR ) + if ( ListBox_SetItemData(GetHwnd(), n, clientData) == LB_ERR ) + { wxLogDebug(wxT("LB_SETITEMDATA failed")); + } } // Return number of selections and an array of selected integers @@ -467,198 +322,225 @@ int wxListBox::GetSelections(wxArrayInt& aSelections) const { aSelections.Empty(); - if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED)) + if ( HasMultipleSelection() ) { - int no_sel = ListBox_GetSelCount(GetHwnd()); - if (no_sel != 0) { - int *selections = new int[no_sel]; - if ( ListBox_GetSelItems(GetHwnd(), no_sel, selections) == LB_ERR ) { - wxFAIL_MSG(wxT("This listbox can't have single-selection style!")); - } + 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 { - aSelections.Add(ListBox_GetCurSel(GetHwnd())); + if (ListBox_GetCurSel(GetHwnd()) > -1) + aSelections.Add(ListBox_GetCurSel(GetHwnd())); - return 1; + return aSelections.Count(); } } // Get single selection, for single choice list items int wxListBox::GetSelection() const { - wxCHECK_MSG( !(m_windowStyle & wxLB_MULTIPLE) && - !(m_windowStyle & wxLB_EXTENDED), + 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 +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; } -// 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) +int wxListBox::DoInsertItems(const wxArrayStringsAdapter & items, + unsigned int pos, + void **clientData, + wxClientDataType type) { - // Only necessary if we want a horizontal scrollbar - if (!(m_windowStyle & wxHSCROLL)) - return; - TEXTMETRIC lpTextMetric; + MSWAllocStorage(items, LB_INITSTORAGE); - if (s != wxT("")) - { - 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); + const bool append = pos == GetCount(); - if (oldFont) - ::SelectObject(dc, oldFont); + // we must use CB_ADDSTRING when appending as only it works correctly for + // the sorted controls + const unsigned msg = append ? LB_ADDSTRING : LB_INSERTSTRING; - ReleaseDC(GetHwnd(), dc); - if (extentX > existingExtent) - SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(extentX), 0L); - return; - } - else + if ( append ) + pos = 0; + + int n = wxNOT_FOUND; + + const unsigned int numItems = items.GetCount(); + for ( unsigned int i = 0; i < numItems; i++ ) { - 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++) + 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) ) { - int len = (int)SendMessage(GetHwnd(), LB_GETTEXT, i, (LONG)wxBuffer); - wxBuffer[len] = 0; - SIZE extentXY; - ::GetTextExtentPoint(dc, (LPTSTR)wxBuffer, len, &extentXY); - int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth); - if (extentX > largestExtent) - largestExtent = extentX; + wxOwnerDrawn *pNewItem = CreateLboxItem(n); + pNewItem->SetFont(GetFont()); + m_aItems.Insert(pNewItem, n); } - if (oldFont) - ::SelectObject(dc, oldFont); - - ReleaseDC(GetHwnd(), dc); - SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(largestExtent), 0L); +#endif // wxUSE_OWNER_DRAWN + AssignNewItemClientData(n, clientData, i, type); } + + MSWOnItemsChanged(); + + UpdateOldSelections(); + + return n; } -void -wxListBox::InsertItems(int nItems, const wxString items[], int pos) +int wxListBox::DoHitTestList(const wxPoint& point) const { - wxCHECK_RET( pos >= 0 && pos <= m_noItems, - wxT("invalid index in wxListBox::InsertItems") ); + LRESULT lRes = ::SendMessage(GetHwnd(), LB_ITEMFROMPOINT, + 0, MAKELPARAM(point.x, point.y)); - int i; - for (i = 0; i < nItems; i++) - ListBox_InsertString(GetHwnd(), i + pos, items[i]); - m_noItems += nItems; - - SetHorizontalExtent(wxT("")); + // 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") ); - int sel = -1; - if (!(m_windowStyle & wxLB_MULTIPLE) && !(m_windowStyle & wxLB_EXTENDED)) - sel = GetSelection(); + // remember the state of the item + bool wasSelected = IsSelected(n); - void *oldData = wxListBox::GetClientData(N); + void *oldData = NULL; + wxClientData *oldObjData = NULL; + if ( HasClientUntypedData() ) + oldData = GetClientData(n); + else if ( HasClientObjectData() ) + oldObjData = GetClientObject(n); - SendMessage(GetHwnd(), LB_DELETESTRING, N, 0); + // delete and recreate it + SendMessage(GetHwnd(), LB_DELETESTRING, n, 0); - int newN = N; - if (N == (m_noItems - 1)) + int newN = n; + if ( n == (m_noItems - 1) ) newN = -1; - SendMessage(GetHwnd(), LB_INSERTSTRING, newN, (LPARAM) (const wxChar *)s); - if (oldData) - wxListBox::SetClientData(N, oldData); + ListBox_InsertString(GetHwnd(), newN, s.wx_str()); - // Selection may have changed - if (sel >= 0) - SetSelection(sel); + // restore the client data + if ( oldData ) + SetClientData(n, oldData); + else if ( oldObjData ) + SetClientObject(n, oldObjData); -#if wxUSE_OWNER_DRAWN - if ( m_windowStyle & wxLB_OWNERDRAW ) - // update item's text - m_aItems[N]->SetName(s); -#endif //USE_OWNER_DRAWN + // we may have lost the selection + if ( wasSelected ) + Select(n); + + MSWOnItemsChanged(); } -int wxListBox::Number () const +unsigned int wxListBox::GetCount() const { return m_noItems; } -// For single selection items only -wxString wxListBox::GetStringSelection () const -{ - int sel = GetSelection (); - if (sel > -1) - return this->GetString (sel); - else - return wxString(""); -} +// ---------------------------------------------------------------------------- +// size-related stuff +// ---------------------------------------------------------------------------- -bool wxListBox::SetStringSelection (const wxString& s, bool flag) +void wxListBox::SetHorizontalExtent(const wxString& s) { - int sel = FindString (s); - if (sel > -1) + // the rest is only necessary if we want a horizontal scrollbar + if ( !HasFlag(wxHSCROLL) ) + return; + + + WindowHDC dc(GetHwnd()); + SelectInHDC selFont(dc, GetHfontOf(GetFont())); + + TEXTMETRIC lpTextMetric; + ::GetTextMetrics(dc, &lpTextMetric); + + int largestExtent = 0; + SIZE extentXY; + + if ( s.empty() ) { - SetSelection (sel, flag); - return TRUE; + // set extent to the max length of all strings + for ( unsigned int i = 0; i < m_noItems; i++ ) + { + const wxString str = GetString(i); + ::GetTextExtentPoint32(dc, str.c_str(), str.length(), &extentXY); + + int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth); + if ( extentX > largestExtent ) + largestExtent = extentX; + } } - else - return FALSE; + else // just increase the extent to the length of this string + { + int existingExtent = (int)SendMessage(GetHwnd(), + LB_GETHORIZONTALEXTENT, 0, 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() +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); @@ -672,74 +554,158 @@ wxSize wxListBox::DoGetBestSize() 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); } -// Is this the right thing? Won't setselection generate a command -// event too? No! It'll just generate a setselection event. -// But we still can't have this being called whenever a real command -// is generated, because it sets the selection, which will already -// have been done! (Unless we have an optional argument for calling -// by the actual window system, or a separate function, ProcessCommand) -void wxListBox::Command (wxCommandEvent & event) +// ---------------------------------------------------------------------------- +// callbacks +// ---------------------------------------------------------------------------- + +bool wxListBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) { - if (event.m_extraLong) - SetSelection (event.m_commandInt); + wxEventType evtType; + int n = wxNOT_FOUND; + if ( param == LBN_SELCHANGE ) + { + if ( HasMultipleSelection() ) + return CalcAndSendEvent(); + + evtType = wxEVT_COMMAND_LISTBOX_SELECTED; + + if ( m_selectedByKeyboard ) + { + // 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); + } + //else: n will be determined below from the mouse position + } + else if ( param == LBN_DBLCLK ) + { + evtType = wxEVT_COMMAND_LISTBOX_DOUBLECLICKED; + } else { - Deselect (event.m_commandInt); - return; + // some event we're not interested in + return false; } - ProcessCommand (event); + + // 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; + + if ( param == LBN_SELCHANGE ) + { + if ( !DoChangeSingleSelection(n) ) + 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); } -WXHBRUSH wxListBox::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor, - WXUINT message, WXWPARAM wParam, WXLPARAM lParam) +// ---------------------------------------------------------------------------- +// owner-drawn list boxes support +// ---------------------------------------------------------------------------- + +#if wxUSE_OWNER_DRAWN + +// misc overloaded methods +// ----------------------- + +bool wxListBox::SetFont(const wxFont &font) { -#if wxUSE_CTL3D - if ( m_useCtl3D ) + if ( HasFlag(wxLB_OWNERDRAW) ) { - HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam); - return (WXHBRUSH) hbrush; + const unsigned count = m_aItems.GetCount(); + for ( unsigned i = 0; i < count; i++ ) + m_aItems[i]->SetFont(font); } -#endif - if (GetParent()->GetTransparentBackground()) - SetBkMode((HDC) pDC, TRANSPARENT); - else - SetBkMode((HDC) pDC, OPAQUE); + wxListBoxBase::SetFont(font); - ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue())); - ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue())); + return true; +} - wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID); +bool wxListBox::GetItemRect(size_t n, wxRect& rect) const +{ + wxCHECK_MSG( IsValid(n), false, + wxT("invalid index in wxListBox::GetItemRect") ); + + RECT rc; - // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush - // has a zero usage count. - backgroundBrush->RealizeResource(); - return (WXHBRUSH) backgroundBrush->GetResourceHandle(); + 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; + } } -long wxListBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) +bool wxListBox::RefreshItem(size_t n) { - return wxControl::MSWWindowProc(nMsg, wParam, lParam); + wxRect rect; + if ( !GetItemRect(n, rect) ) + return false; + + RECT rc; + wxCopyRectToRECT(rect, rc); + + return ::InvalidateRect((HWND)GetHWND(), &rc, FALSE) == TRUE; } -#if wxUSE_OWNER_DRAWN // 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 @@ -749,43 +715,54 @@ long wxListBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) 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; - wxDC dc; - dc.SetHDC((WXHDC)CreateIC(wxT("DISPLAY"), NULL, NULL, 0)); - dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_ANSI_VAR_FONT)); +#ifdef __WXWINCE__ + HDC hdc = GetDC(NULL); +#else + HDC hdc = CreateIC(wxT("DISPLAY"), NULL, NULL, 0); +#endif - pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE; - pStruct->itemWidth = dc.GetCharWidth(); + { + wxDCTemp dc((WXHDC)hdc); + dc.SetFont(GetFont()); - return TRUE; + pStruct->itemHeight = dc.GetCharHeight() + 2 * LISTBOX_EXTRA_SPACE; + pStruct->itemWidth = dc.GetCharWidth(); + } + +#ifdef __WXWINCE__ + ReleaseDC(NULL, hdc); +#else + DeleteDC(hdc); +#endif + + 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; - long data = ListBox_GetItemData(GetHwnd(), pStruct->itemID); - - wxCHECK( data && (data != LB_ERR), FALSE ); + // the item may be -1 for an empty listbox + 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