X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/50c375d311ac4cefbf1ae1d11e19c9e7c00a873e..ce7208d49d5ce2ca1dc0b3b83f14f1d04f29c4bf:/src/msw/listbox.cpp?ds=sidebyside diff --git a/src/msw/listbox.cpp b/src/msw/listbox.cpp index 7220cf5ef1..bc989f5d32 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" @@ -20,71 +16,96 @@ #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 #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 +#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 -#if !USE_SHARED_LIBRARY - IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl) -#endif +/* +TODO PROPERTIES + selection + content + item +*/ // ============================================================================ // list box item declaration and implementation @@ -95,16 +116,16 @@ 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(); } @@ -136,107 +157,91 @@ bool wxListBox::Create(wxWindow *parent, 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; + // initialize base class fields + if ( !CreateControl(parent, id, pos, size, style, validator, name) ) + return false; - 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; + // create the native control + if ( !MSWCreateControl(_T("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 if necessary + SetBestSize(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() +{ + Free(); +} - 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); + // always show the vertical scrollbar if necessary -- otherwise it is + // impossible to use the control with the mouse + msStyle |= WS_VSCROLL; - SetFont(parent->GetFont()); + // we always want to get the notifications + msStyle |= LBS_NOTIFY; - SetSize(x, y, width, height); + // without this style, you get unexpected heights, so e.g. constraint + // layout doesn't work properly + msStyle |= LBS_NOINTEGRALHEIGHT; - Show(TRUE); + wxASSERT_MSG( !(style & wxLB_MULTIPLE) || !(style & wxLB_EXTENDED), + _T("only one of listbox selection modes can be specified") ); - return TRUE; -} + if ( style & wxLB_MULTIPLE ) + msStyle |= LBS_MULTIPLESEL; + else if ( style & wxLB_EXTENDED ) + msStyle |= LBS_EXTENDEDSEL; -wxListBox::~wxListBox() -{ -// Free(); -} + 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; -void wxListBox::SetupColours() -{ - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); - SetForegroundColour(GetParent()->GetForegroundColour()); +#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; } // ---------------------------------------------------------------------------- @@ -245,31 +250,31 @@ void wxListBox::SetupColours() 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::Delete(unsigned int n) { - wxCHECK_RET( N >= 0 && N < m_noItems, + wxCHECK_RET( IsValid(n), wxT("invalid index in wxListBox::Delete") ); -#if wxUSE_OWNER_DRAWN - delete m_aItems[N]; - m_aItems.Remove(N); -#else // !wxUSE_OWNER_DRAWN - if ( HasClientObjectData() ) - { - delete GetClientObject(N); - } -#endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN + // 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); + SendMessage(GetHwnd(), LB_DELETESTRING, n, 0); m_noItems--; - SetHorizontalExtent(""); + SetHorizontalExtent(wxEmptyString); } int wxListBox::DoAppend(const wxString& item) @@ -279,12 +284,13 @@ int wxListBox::DoAppend(const wxString& item) #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); @@ -293,38 +299,34 @@ int wxListBox::DoAppend(const wxString& 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()); m_noItems = choices.GetCount(); - int i; + unsigned int i; for (i = 0; i < m_noItems; i++) { 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 ( unsigned int ui = 0; ui < m_noItems; ui++ ) { + wxOwnerDrawn *pNewItem = CreateLboxItem(ui); pNewItem->SetName(choices[ui]); m_aItems.Add(pNewItem); ListBox_SetItemData(GetHwnd(), ui, pNewItem); @@ -334,12 +336,20 @@ void wxListBox::DoSetItems(const wxArrayString& choices, void** clientData) 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 +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); if (pos == LB_ERR) return wxNOT_FOUND; else @@ -348,7 +358,7 @@ int wxListBox::FindString(const wxString& s) const void wxListBox::Clear() { -// Free(); + Free(); ListBox_ResetContent(GetHwnd()); @@ -356,33 +366,27 @@ void wxListBox::Clear() SetHorizontalExtent(); } -/* 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(); + WX_CLEAR_ARRAY(m_aItems); } else #endif // wxUSE_OWNER_DRAWN if ( HasClientObjectData() ) { - for ( size_t n = 0; n < (size_t)m_noItems; n++ ) + for ( unsigned int n = 0; n < m_noItems; n++ ) { delete GetClientObject(n); } } } -*/ -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() ) @@ -397,33 +401,33 @@ void wxListBox::SetSelection(int N, bool select) 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 +wxClientData* wxListBox::DoGetItemClientObject(unsigned int n) const { return (wxClientData *)DoGetItemClientData(n); } -void *wxListBox::DoGetItemClientData(int n) const +void *wxListBox::DoGetItemClientData(unsigned int n) const { - wxCHECK_MSG( n >= 0 && n < m_noItems, NULL, + wxCHECK_MSG( IsValid(n), NULL, wxT("invalid index in wxListBox::GetClientData") ); return (void *)SendMessage(GetHwnd(), LB_GETITEMDATA, n, 0); } -void wxListBox::DoSetItemClientObject(int n, wxClientData* clientData) +void wxListBox::DoSetItemClientObject(unsigned int n, wxClientData* clientData) { DoSetItemClientData(n, clientData); } -void wxListBox::DoSetItemClientData(int n, void *clientData) +void wxListBox::DoSetItemClientData(unsigned int n, void *clientData) { - wxCHECK_RET( n >= 0 && n < m_noItems, + wxCHECK_RET( IsValid(n), wxT("invalid index in wxListBox::SetClientData") ); #if wxUSE_OWNER_DRAWN @@ -439,11 +443,6 @@ void wxListBox::DoSetItemClientData(int n, void *clientData) 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 { @@ -451,27 +450,39 @@ 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(); } } @@ -480,156 +491,179 @@ int wxListBox::GetSelection() const { 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; } void -wxListBox::DoInsertItems(const wxArrayString& items, int pos) +wxListBox::DoInsertItems(const wxArrayString& items, unsigned int pos) { - wxCHECK_RET( pos >= 0 && pos <= m_noItems, + wxCHECK_RET( IsValidInsert(pos), wxT("invalid index in wxListBox::InsertItems") ); - int nItems = items.GetCount(); - for ( int i = 0; i < nItems; i++ ) - ListBox_InsertString(GetHwnd(), i + pos, items[i]); + unsigned int nItems = items.GetCount(); + for ( unsigned int i = 0; i < nItems; 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 wxListBox::SetString(int N, const wxString& s) +int wxListBox::DoListHitTest(const wxPoint& point) const { - wxCHECK_RET( N >= 0 && N < m_noItems, + LRESULT lRes = ::SendMessage(GetHwnd(), LB_ITEMFROMPOINT, + 0L, MAKELONG(point.x, point.y)); + + // 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 : lRes; +} + +void wxListBox::SetString(unsigned int n, const wxString& s) +{ + 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 ( m_clientDataItemsType == wxClientData_Void ) + oldData = GetClientData(n); + else if ( m_clientDataItemsType == wxClientData_Object ) + 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); // restore the client data if ( oldData ) - SetClientData(N, oldData); + SetClientData(n, oldData); else if ( oldObjData ) - SetClientObject(N, oldObjData); - - // we may have lost the selection - if ( wasSelected ) - Select(N); + SetClientObject(n, oldObjData); #if wxUSE_OWNER_DRAWN if ( m_windowStyle & wxLB_OWNERDRAW ) + { // update item's text - m_aItems[N]->SetName(s); + 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); + + SetHorizontalExtent(); } -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)) + // in any case, our best size could have changed + InvalidateBestSize(); + + // 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() +wxSize wxListBox::DoGetBestSize() 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); @@ -644,13 +678,21 @@ wxSize wxListBox::DoGetBestSize() // 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); - return wxSize(wListbox, hListbox); + // 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); + + wxSize best(wListbox, hListbox); + CacheBestSize(best); + return best; } // ---------------------------------------------------------------------------- @@ -659,68 +701,40 @@ wxSize wxListBox::DoGetBestSize() 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 ); - - return GetEventHandler()->ProcessEvent(event); + evtType = wxEVT_COMMAND_LISTBOX_DOUBLECLICKED; } - //else: - - return FALSE; -} - -WXHBRUSH wxListBox::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor, - WXUINT message, WXWPARAM wParam, WXLPARAM lParam) -{ -#if wxUSE_CTL3D - if ( m_useCtl3D ) + else { - HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam); - return (WXHBRUSH) hbrush; + // some event we're not interested in + return false; } -#endif - if (GetParent()->GetTransparentBackground()) - SetBkMode((HDC) pDC, TRANSPARENT); - else - SetBkMode((HDC) pDC, OPAQUE); + wxCommandEvent event(evtType, m_windowId); + event.SetEventObject( this ); - ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue())); - ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue())); + // 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) ); - wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID); + event.SetString(GetString(n)); + event.SetExtraLong( HasMultipleSelection() ? IsSelected(n) : true ); + } - // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush - // has a zero usage count. - backgroundBrush->RealizeResource(); - return (WXHBRUSH) backgroundBrush->GetResourceHandle(); + event.SetInt(n); + + return GetEventHandler()->ProcessEvent(event); } // ---------------------------------------------------------------------------- @@ -744,43 +758,62 @@ WXHBRUSH wxListBox::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor, 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; - 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()); + + pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_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( ((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