X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/42e69d6b435a4dd5415caf3750db62cf45b6f373..b9efe021b554fa3967d1442cf758435c5cd5ae8f:/src/msw/listbox.cpp?ds=sidebyside diff --git a/src/msw/listbox.cpp b/src/msw/listbox.cpp index 994f8e8f9b..ffe24da141 100644 --- a/src/msw/listbox.cpp +++ b/src/msw/listbox.cpp @@ -1,15 +1,15 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: listbox.cpp +// Name: src/msw/listbox.cpp // Purpose: wxListBox // Author: Julian Smart // Modified by: Vadim Zeitlin (owner drawn stuff) // Created: // RCS-ID: $Id$ // Copyright: (c) Julian Smart -// Licence: wxWindows license +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "listbox.h" #endif @@ -20,36 +20,97 @@ #pragma hdrstop #endif +#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/listbox.h" +#include "wx/settings.h" +#include "wx/brush.h" +#include "wx/font.h" +#include "wx/dc.h" +#include "wx/utils.h" #endif +#include "wx/window.h" #include "wx/msw/private.h" -#include #include -#ifndef __TWIN32__ - #ifdef __GNUWIN32__ - #include - #endif -#endif +#include "wx/dynarray.h" +#include "wx/log.h" #if wxUSE_OWNER_DRAWN #include "wx/ownerdrw.h" #endif -#include "wx/dynarray.h" -#include "wx/log.h" - -#if !USE_SHARED_LIBRARY - IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl) +#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 +/* +TODO PROPERTIES + selection + content + item +*/ + // ============================================================================ // list box item declaration and implementation // ============================================================================ @@ -59,16 +120,16 @@ 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(); } @@ -79,51 +140,11 @@ 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 != "") - { - 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 +// Listbox item wxListBox::wxListBox() { m_noItems = 0; @@ -140,290 +161,298 @@ 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; - - 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; + // 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(_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; + // Necessary to prevent scroll problems within a notebook with Windows + // effects enabled + SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); - 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, "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, "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); +} + +wxListBox::~wxListBox() +{ + Free(); +} - // Subclass again to catch messages - SubclassWin(m_hWnd); +WXDWORD wxListBox::MSWGetStyle(long style, WXDWORD *exstyle) const +{ + WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle); - size_t ui; - for (ui = 0; ui < (size_t)n; ui++) { - Append(choices[ui]); - } + // always show the vertical scrollbar if necessary -- otherwise it is + // impossible to use the control with the mouse + msStyle |= WS_VSCROLL; - 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), + _T("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; -} + 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; -wxListBox::~wxListBox() -{ -#if wxUSE_OWNER_DRAWN - size_t uiCount = m_aItems.Count(); - while ( uiCount-- != 0 ) { - delete m_aItems[uiCount]; +#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 -} -void wxListBox::SetupColours() -{ - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); - SetForegroundColour(GetParent()->GetForegroundColour()); + return msStyle; } -void wxListBox::SetFirstItem(int N) -{ - wxCHECK_RET( N >= 0 && N < m_noItems, - "invalid index in wxListBox::SetFirstItem" ); - - SendMessage(GetHwnd(),LB_SETTOPINDEX,(WPARAM)N,(LPARAM)0) ; -} +// ---------------------------------------------------------------------------- +// implementation of wxListBoxBase methods +// ---------------------------------------------------------------------------- -void wxListBox::SetFirstItem(const wxString& s) +void wxListBox::DoSetFirstItem(int N) { - int N = FindString(s) ; + wxCHECK_RET( N >= 0 && N < m_noItems, + wxT("invalid index in wxListBox::SetFirstItem") ); - if ( N >= 0 ) - SetFirstItem(N) ; + SendMessage(GetHwnd(), LB_SETTOPINDEX, (WPARAM)N, (LPARAM)0); } void wxListBox::Delete(int N) { wxCHECK_RET( N >= 0 && N < m_noItems, - "invalid index in wxListBox::Delete" ); + 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(""); + SetHorizontalExtent(wxEmptyString); + + InvalidateBestSize(); } -void wxListBox::Append(const wxString& item) +int wxListBox::DoAppend(const wxString& item) { int index = ListBox_AddString(GetHwnd(), item); - m_noItems ++; + m_noItems++; #if wxUSE_OWNER_DRAWN if ( m_windowStyle & wxLB_OWNERDRAW ) { - wxOwnerDrawn *pNewItem = CreateItem(index); // dummy argument + wxOwnerDrawn *pNewItem = CreateLboxItem(index); // dummy argument pNewItem->SetName(item); - m_aItems.Add(pNewItem); + m_aItems.Insert(pNewItem, index); ListBox_SetItemData(GetHwnd(), index, pNewItem); + pNewItem->SetFont(GetFont()); } -#endif +#endif // wxUSE_OWNER_DRAWN SetHorizontalExtent(item); + + InvalidateBestSize(); + return index; } -void wxListBox::Append(const wxString& item, char *Client_data) +void wxListBox::DoSetItems(const wxArrayString& choices, void** clientData) { - int index = ListBox_AddString(GetHwnd(), item); - m_noItems ++; - -#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("Can't use client data with owner-drawn listboxes"); + // avoid flicker - but don't need to do this for a hidden listbox + bool hideAndShow = IsShown(); + if ( hideAndShow ) + { + ShowWindow(GetHwnd(), SW_HIDE); } - else -#endif - ListBox_SetItemData(GetHwnd(), index, Client_data); - - SetHorizontalExtent(item); -} - -void wxListBox::Set(int n, const wxString *choices, char** clientData) -{ - ShowWindow(GetHwnd(), SW_HIDE); ListBox_ResetContent(GetHwnd()); + + m_noItems = choices.GetCount(); int i; - for (i = 0; i < n; i++) + for (i = 0; i < m_noItems; i++) { ListBox_AddString(GetHwnd(), choices[i]); if ( clientData ) - ListBox_SetItemData(GetHwnd(), i, clientData[i]); + { + SetClientData(i, clientData[i]); + } } - 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(); + WX_CLEAR_ARRAY(m_aItems); // then create new ones - for (ui = 0; ui < (size_t)n; ui++) { - wxOwnerDrawn *pNewItem = CreateItem(ui); + for ( size_t ui = 0; ui < (size_t)m_noItems; ui++ ) { + wxOwnerDrawn *pNewItem = CreateLboxItem(ui); pNewItem->SetName(choices[ui]); m_aItems.Add(pNewItem); ListBox_SetItemData(GetHwnd(), ui, pNewItem); - - wxASSERT_MSG(clientData[ui] == NULL, - "Can't use client data with owner-drawn listboxes"); } } -#endif +#endif // wxUSE_OWNER_DRAWN - SetHorizontalExtent(""); - ShowWindow(GetHwnd(), SW_SHOW); + SetHorizontalExtent(); + + if ( hideAndShow ) + { + // show the listbox back if we hid it + ShowWindow(GetHwnd(), SW_SHOW); + } + + InvalidateBestSize(); } int wxListBox::FindString(const wxString& s) const { int pos = ListBox_FindStringExact(GetHwnd(), (WPARAM)-1, s); if (pos == LB_ERR) - return -1; + return wxNOT_FOUND; else return pos; } void wxListBox::Clear() { + Free(); + ListBox_ResetContent(GetHwnd()); + m_noItems = 0; + SetHorizontalExtent(); + + InvalidateBestSize(); +} + +void wxListBox::Free() +{ #if wxUSE_OWNER_DRAWN - size_t uiCount = m_aItems.Count(); - while ( uiCount-- != 0 ) { - delete m_aItems[uiCount]; + if ( m_windowStyle & wxLB_OWNERDRAW ) + { + WX_CLEAR_ARRAY(m_aItems); } - - m_aItems.Clear(); + else #endif // wxUSE_OWNER_DRAWN - - m_noItems = 0; - ListBox_GetHorizontalExtent(GetHwnd()); + if ( HasClientObjectData() ) + { + for ( size_t n = 0; n < (size_t)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, - "invalid index in wxListBox::SetSelection" ); + wxCHECK_RET( N == wxNOT_FOUND || + (N >= 0 && N < m_noItems), + wxT("invalid index in wxListBox::SetSelection") ); - if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED)) + if ( HasMultipleSelection() ) + { SendMessage(GetHwnd(), LB_SETSEL, select, 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 +bool wxListBox::IsSelected(int N) const { - wxCHECK_MSG( N >= 0 && N < m_noItems, FALSE, - "invalid index in wxListBox::Selected" ); + wxCHECK_MSG( N >= 0 && N < m_noItems, false, + wxT("invalid index in wxListBox::Selected") ); - return SendMessage(GetHwnd(), LB_GETSEL, N, 0) == 0 ? FALSE : TRUE; + return SendMessage(GetHwnd(), LB_GETSEL, N, 0) == 0 ? false : true; } -void wxListBox::Deselect(int N) +wxClientData* wxListBox::DoGetItemClientObject(int n) const { - wxCHECK_RET( N >= 0 && N < m_noItems, - "invalid index in wxListBox::Deselect" ); - - if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED)) - SendMessage(GetHwnd(), LB_SETSEL, FALSE, N); + return (wxClientData *)DoGetItemClientData(n); } -char *wxListBox::GetClientData(int N) const +void *wxListBox::DoGetItemClientData(int n) const { - wxCHECK_MSG( N >= 0 && N < m_noItems, NULL, - "invalid index in wxListBox::GetClientData" ); + wxCHECK_MSG( n >= 0 && n < m_noItems, NULL, + wxT("invalid index in wxListBox::GetClientData") ); - return (char *)SendMessage(GetHwnd(), LB_GETITEMDATA, N, 0); + return (void *)SendMessage(GetHwnd(), LB_GETITEMDATA, n, 0); } -void wxListBox::SetClientData(int N, char *Client_data) +void wxListBox::DoSetItemClientObject(int n, wxClientData* clientData) { - wxCHECK_RET( N >= 0 && N < m_noItems, - "invalid index in wxListBox::SetClientData" ); + DoSetItemClientData(n, clientData); +} + +void wxListBox::DoSetItemClientData(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 ) - wxLogDebug("LB_SETITEMDATA failed"); +#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")); } // Return number of selections and an array of selected integers @@ -431,40 +460,50 @@ 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("This listbox can't have single-selection style!"); - } + int countSel = ListBox_GetSelCount(GetHwnd()); + if ( countSel == LB_ERR ) + { + wxLogDebug(_T("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, - "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()); } @@ -472,78 +511,110 @@ int wxListBox::GetSelection() const // Find string for position wxString wxListBox::GetString(int N) const { - wxCHECK_MSG( N >= 0 && N < m_noItems, "", - "invalid index in wxListBox::GetClientData" ); + wxCHECK_MSG( N >= 0 && N < m_noItems, wxEmptyString, + wxT("invalid index in wxListBox::GetString") ); int len = ListBox_GetTextLen(GetHwnd(), N); // +1 for terminating NUL wxString result; - ListBox_GetText(GetHwnd(), N, result.GetWriteBuf(len + 1)); - result.UngetWriteBuf(); + ListBox_GetText(GetHwnd(), N, (wxChar*)wxStringBuffer(result, len + 1)); return result; } -void wxListBox::DoSetSize(int x, int y, int width, int height, int sizeFlags) +void +wxListBox::DoInsertItems(const wxArrayString& items, int pos) { - int currentX, currentY; - GetPosition(¤tX, ¤tY); - - int x1 = x; - int y1 = y; - int w1 = width; - int h1 = height; + wxCHECK_RET( pos >= 0 && pos <= m_noItems, + wxT("invalid index in wxListBox::InsertItems") ); - if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) - x1 = currentX; - if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) - y1 = currentY; + int nItems = items.GetCount(); + for ( int i = 0; i < nItems; i++ ) + { + int idx = ListBox_InsertString(GetHwnd(), i + pos, items[i]); - AdjustForParentClientOrigin(x1, y1, sizeFlags); +#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); - // If we're prepared to use the existing size, then... - if (width == -1 && height == -1 && ((sizeFlags & wxSIZE_AUTO) != wxSIZE_AUTO)) - { - GetSize(&w1, &h1); + ListBox_SetItemData(GetHwnd(), idx, pNewItem); + } +#else + wxUnusedVar(idx); +#endif // wxUSE_OWNER_DRAWN } - int cx; // button font dimensions - int cy; + m_noItems += nItems; + + SetHorizontalExtent(); + + InvalidateBestSize(); +} + +void wxListBox::SetString(int N, const wxString& s) +{ + wxCHECK_RET( N >= 0 && N < m_noItems, + wxT("invalid index in wxListBox::SetString") ); + + // remember the state of the item + bool wasSelected = IsSelected(N); + + void *oldData = NULL; + wxClientData *oldObjData = NULL; + if ( m_clientDataItemsType == wxClientData_Void ) + oldData = GetClientData(N); + else if ( m_clientDataItemsType == wxClientData_Object ) + oldObjData = GetClientObject(N); - wxGetCharSize(GetHWND(), &cx, &cy, & this->GetFont()); + // delete and recreate it + SendMessage(GetHwnd(), LB_DELETESTRING, N, 0); - float control_width, control_height, control_x, control_y; + int newN = N; + if ( N == m_noItems - 1 ) + newN = -1; - // Deal with default size (using -1 values) - if (w1<=0) - w1 = DEFAULT_ITEM_WIDTH; + ListBox_InsertString(GetHwnd(), newN, s); - if (h1<=0) - h1 = DEFAULT_ITEM_HEIGHT; + // restore the client data + if ( oldData ) + SetClientData(N, oldData); + else if ( oldObjData ) + SetClientObject(N, oldObjData); - control_x = (float)x1; - control_y = (float)y1; - control_width = (float)w1; - control_height = (float)h1; +#if wxUSE_OWNER_DRAWN + if ( m_windowStyle & wxLB_OWNERDRAW ) + { + // update item's text + m_aItems[N]->SetName(s); - // Calculations may have made size too small - if (control_height <= 0) - control_height = (float)DEFAULT_ITEM_HEIGHT; + // reassign the item's data + ListBox_SetItemData(GetHwnd(), N, m_aItems[N]); + } +#endif //USE_OWNER_DRAWN - if (control_width <= 0) - control_width = (float)DEFAULT_ITEM_WIDTH; + // we may have lost the selection + if ( wasSelected ) + Select(N); - MoveWindow(GetHwnd(), - (int)control_x, (int)control_y, - (int)control_width, (int)control_height, - TRUE); + InvalidateBestSize(); +} +int wxListBox::GetCount() const +{ + return m_noItems; } -// 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. +// ---------------------------------------------------------------------------- +// helpers +// ---------------------------------------------------------------------------- + +// 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) { @@ -552,17 +623,17 @@ void wxListBox::SetHorizontalExtent(const wxString& s) return; TEXTMETRIC lpTextMetric; - if (s != "") + if ( !s.empty() ) { int existingExtent = (int)SendMessage(GetHwnd(), LB_GETHORIZONTALEXTENT, 0, 0L); HDC dc = GetWindowDC(GetHwnd()); HFONT oldFont = 0; - if (GetFont().Ok() && GetFont().GetResourceHandle()) + if (GetFont().Ok() && GetFont().GetResourceHandle() != 0) oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle()); GetTextMetrics(dc, &lpTextMetric); SIZE extentXY; - ::GetTextExtentPoint(dc, (LPSTR) (const char *)s, s.Length(), &extentXY); + ::GetTextExtentPoint32(dc, (LPTSTR) (const wxChar *)s, s.Length(), &extentXY); int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth); if (oldFont) @@ -571,24 +642,22 @@ void wxListBox::SetHorizontalExtent(const wxString& s) ReleaseDC(GetHwnd(), dc); if (extentX > existingExtent) SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(extentX), 0L); - return; } else { int largestExtent = 0; HDC dc = GetWindowDC(GetHwnd()); HFONT oldFont = 0; - if (GetFont().Ok() && GetFont().GetResourceHandle()) + if (GetFont().Ok() && GetFont().GetResourceHandle() != 0) oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle()); GetTextMetrics(dc, &lpTextMetric); - int i; - for (i = 0; i < m_noItems; i++) + + for (int i = 0; i < m_noItems; i++) { - int len = (int)SendMessage(GetHwnd(), LB_GETTEXT, i, (LONG)wxBuffer); - wxBuffer[len] = 0; + wxString str = GetString(i); SIZE extentXY; - ::GetTextExtentPoint(dc, (LPSTR)wxBuffer, len, &extentXY); + ::GetTextExtentPoint32(dc, str.c_str(), str.length(), &extentXY); int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth); if (extentX > largestExtent) largestExtent = extentX; @@ -601,129 +670,89 @@ void wxListBox::SetHorizontalExtent(const wxString& s) } } -void -wxListBox::InsertItems(int nItems, const wxString items[], int pos) +wxSize wxListBox::DoGetBestSize() const { - wxCHECK_RET( pos >= 0 && pos <= m_noItems, - "invalid index in wxListBox::InsertItems" ); - - int i; - for (i = 0; i < nItems; i++) - ListBox_InsertString(GetHwnd(), i + pos, items[i]); - m_noItems += nItems; - - SetHorizontalExtent(""); -} - -void wxListBox::SetString(int N, const wxString& s) -{ - wxCHECK_RET( N >= 0 && N < m_noItems, - "invalid index in wxListBox::SetString" ); - - int sel = -1; - if (!(m_windowStyle & wxLB_MULTIPLE) && !(m_windowStyle & wxLB_EXTENDED)) - sel = GetSelection(); + // find the widest string + int wLine; + int wListbox = 0; + for ( int i = 0; i < m_noItems; i++ ) + { + wxString str(GetString(i)); + GetTextExtent(str, &wLine, NULL); + if ( wLine > wListbox ) + wListbox = wLine; + } - char *oldData = (char *)wxListBox::GetClientData(N); + // give it some reasonable default value if there are no strings in the + // list + if ( wListbox == 0 ) + wListbox = 100; - SendMessage(GetHwnd(), LB_DELETESTRING, N, 0); + // the listbox should be slightly larger than the widest string + int cx, cy; + wxGetCharSize(GetHWND(), &cx, &cy, GetFont()); - int newN = N; - if (N == (m_noItems - 1)) - newN = -1; + wListbox += 3*cx; - SendMessage(GetHwnd(), LB_INSERTSTRING, newN, (LPARAM) (const char *)s); - if (oldData) - wxListBox::SetClientData(N, oldData); + // Add room for the scrollbar + wListbox += wxSystemSettings::GetMetric(wxSYS_VSCROLL_X); - // Selection may have changed - if (sel >= 0) - SetSelection(sel); + // 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); -#if wxUSE_OWNER_DRAWN - if ( m_windowStyle & wxLB_OWNERDRAW ) - // update item's text - m_aItems[N]->SetName(s); -#endif //USE_OWNER_DRAWN + wxSize best(wListbox, hListbox); + CacheBestSize(best); + return best; } -int wxListBox::Number () const -{ - return m_noItems; -} +// ---------------------------------------------------------------------------- +// callbacks +// ---------------------------------------------------------------------------- -// For single selection items only -wxString wxListBox::GetStringSelection () const -{ - int sel = GetSelection (); - if (sel > -1) - return this->GetString (sel); - else - return wxString(""); -} - -bool wxListBox::SetStringSelection (const wxString& s, bool flag) +bool wxListBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) { - int sel = FindString (s); - if (sel > -1) + wxEventType evtType; + if ( param == LBN_SELCHANGE ) { - SetSelection (sel, flag); - return TRUE; + evtType = wxEVT_COMMAND_LISTBOX_SELECTED; } - else - return FALSE; -} - -// 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) -{ - if (event.m_extraLong) - SetSelection (event.m_commandInt); - else + else if ( param == LBN_DBLCLK ) { - Deselect (event.m_commandInt); - return; + evtType = wxEVT_COMMAND_LISTBOX_DOUBLECLICKED; } - ProcessCommand (event); -} - -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); -long wxListBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) -{ - return wxControl::MSWWindowProc(nMsg, wParam, lParam); + return GetEventHandler()->ProcessEvent(event); } +// ---------------------------------------------------------------------------- +// wxCheckListBox support +// ---------------------------------------------------------------------------- + #if wxUSE_OWNER_DRAWN // drawing @@ -741,43 +770,59 @@ 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( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), false ); MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item; +#ifdef __WXWINCE__ + HDC hdc = GetDC(NULL); +#else + HDC hdc = CreateIC(wxT("DISPLAY"), NULL, NULL, 0); +#endif + wxDC dc; - dc.SetHDC((WXHDC)CreateIC("DISPLAY", NULL, NULL, 0)); - dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_ANSI_VAR_FONT)); + dc.SetHDC((WXHDC)hdc); + dc.SetFont(GetFont()); pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE; pStruct->itemWidth = dc.GetCharWidth(); - return TRUE; + dc.SetHDC(0); + + DeleteDC(hdc); + + 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