X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/dabeb02181178d15b6914992a34eb223a98aaa0a..ed39ff57b30a70a2395e07887a70bc01e7a3b7ec:/src/msw/listbox.cpp diff --git a/src/msw/listbox.cpp b/src/msw/listbox.cpp index d1db5e48b3..662b86359f 100644 --- a/src/msw/listbox.cpp +++ b/src/msw/listbox.cpp @@ -1,75 +1,77 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: listbox.cpp +// Name: src/msw/listbox.cpp // Purpose: wxListBox // Author: Julian Smart // Modified by: Vadim Zeitlin (owner drawn stuff) -// Created: +// Created: // RCS-ID: $Id$ // Copyright: (c) Julian Smart // Licence: wxWindows license /////////////////////////////////////////////////////////////////////////////// #ifdef __GNUG__ -#pragma implementation "listbox.h" + #pragma implementation "listbox.h" #endif // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #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/utils.h" #endif +#include "wx/window.h" #include "wx/msw/private.h" -#include #include -#ifdef __GNUWIN32__ -#include -#endif +#include "wx/dynarray.h" +#include "wx/log.h" -#ifdef GetCharWidth -#undef GetCharWidth +#if wxUSE_OWNER_DRAWN + #include "wx/ownerdrw.h" #endif -#if USE_OWNER_DRAWN - #include "wx/ownerdrw.h" +#ifndef __TWIN32__ + #ifdef __GNUWIN32_OLD__ + #include "wx/msw/gnuwin32/extra.h" + #endif #endif -#include "wx/dynarray.h" -#include "wx/log.h" - -#if !USE_SHARED_LIBRARY - IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl) -#endif +IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl) // ============================================================================ // list box item declaration and implementation // ============================================================================ -#if USE_OWNER_DRAWN +#if wxUSE_OWNER_DRAWN 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); + // no bitmaps/checkmarks + SetMarginWidth(0); } -wxOwnerDrawn *wxListBox::CreateItem(uint n) +wxOwnerDrawn *wxListBox::CreateLboxItem(size_t WXUNUSED(n)) { - return new wxListBoxItem(); + return new wxListBoxItem(); } #endif //USE_OWNER_DRAWN @@ -78,695 +80,624 @@ wxOwnerDrawn *wxListBox::CreateItem(uint n) // list box control implementation // ============================================================================ -// this macro is dangerous but still better than tons of (HWND)GetHWND() -#define hwnd (HWND)GetHWND() - -bool wxListBox::MSWCommand(const WXUINT param, const 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 = copystring((char *)(const char *)str); - } - else - { - event.m_commandInt = -1 ; - event.m_commandString = copystring("") ; - } - - event.SetEventObject( this ); - ProcessCommand(event); - if (event.m_commandString) - delete[] event.m_commandString ; - return TRUE; - } - else if (param == LBN_DBLCLK) - { - wxCommandEvent event(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, m_windowId); - event.SetEventObject( this ); - if ( !GetEventHandler()->ProcessEvent(event) ) - { -#if WXWIN_COMPATIBILITY - wxWindow *parent = (wxWindow *)GetParent(); - if (parent) - parent->GetEventHandler()->OnDefaultAction(this); -#endif - return TRUE; - } - } - return FALSE; -} +// ---------------------------------------------------------------------------- +// creation +// ---------------------------------------------------------------------------- // Listbox item -wxListBox::wxListBox(void) +wxListBox::wxListBox() { - m_noItems = 0; - m_selected = 0; + m_noItems = 0; + m_selected = 0; } -bool wxListBox::Create(wxWindow *parent, const wxWindowID id, +bool wxListBox::Create(wxWindow *parent, + wxWindowID id, const wxPoint& pos, const wxSize& size, - const int n, const wxString choices[], - const long style, + int n, const wxString choices[], + long style, const wxValidator& validator, const wxString& name) { - m_noItems = n; - m_hWnd = 0; - m_selected = 0; + m_noItems = 0; + m_hWnd = 0; + m_selected = 0; - SetName(name); - SetValidator(validator); + SetName(name); +#if wxUSE_VALIDATORS + SetValidator(validator); +#endif // wxUSE_VALIDATORS - if (parent) parent->AddChild(this); + if (parent) + parent->AddChild(this); - wxSystemSettings settings; - SetBackgroundColour(settings.GetSystemColour(wxSYS_COLOUR_WINDOW)); - SetForegroundColour(parent->GetDefaultForegroundColour()); + SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); + SetForegroundColour(parent->GetForegroundColour()); - m_windowId = ( id == -1 ) ? (int)NewControlId() : id; + 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; + int x = pos.x; + int y = pos.y; + int width = size.x; + int height = size.y; + m_windowStyle = style; - DWORD wstyle = 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; + DWORD wstyle = WS_VISIBLE | WS_VSCROLL | WS_TABSTOP | + LBS_NOTIFY | LBS_HASSTRINGS /* | WS_CLIPSIBLINGS */; - 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; + wxASSERT_MSG( !(style & wxLB_MULTIPLE) || !(style & wxLB_EXTENDED), + _T("only one of listbox selection modes can be specified") ); -#if USE_OWNER_DRAWN - if ( m_windowStyle & wxLB_OWNERDRAW ) { - // we don't support LBS_OWNERDRAWVARIABLE yet - wstyle |= LBS_OWNERDRAWFIXED; - } -#endif - // Without this style, you get unexpected heights, so e.g. constraint layout - // doesn't work properly - wstyle |= LBS_NOINTEGRALHEIGHT; - - bool want3D; - WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ; - - // Even with extended styles, need to combine with WS_BORDER - // for them to look right. - if ( want3D || (m_windowStyle & wxSIMPLE_BORDER) - || (m_windowStyle & wxRAISED_BORDER) - || (m_windowStyle & wxSUNKEN_BORDER) - || (m_windowStyle & wxDOUBLE_BORDER) ) { - wstyle |= WS_BORDER; - } - - HWND wx_list = CreateWindowEx(exStyle, "LISTBOX", NULL, - wstyle | WS_CHILD, - 0, 0, 0, 0, - (HWND)parent->GetHWND(), (HMENU)m_windowId, - wxGetInstance(), NULL); - - m_hWnd = (WXHWND)wx_list; - -#if CTL3D - if (want3D) - { - Ctl3dSubclassCtl(wx_list); - m_useCtl3D = TRUE; - } -#endif + if ( (m_windowStyle & wxBORDER_MASK) == wxBORDER_DEFAULT ) + m_windowStyle |= wxBORDER_SUNKEN; + + if ( m_windowStyle & wxCLIP_SIBLINGS ) + wstyle |= WS_CLIPSIBLINGS; - // Subclass again to catch messages - SubclassWin((WXHWND)wx_list); + if (m_windowStyle & wxLB_MULTIPLE) + wstyle |= LBS_MULTIPLESEL; + else if (m_windowStyle & wxLB_EXTENDED) + wstyle |= LBS_EXTENDEDSEL; - uint ui; - for (ui = 0; ui < (uint)n; ui++) { - SendMessage(wx_list, LB_ADDSTRING, 0, (LPARAM)(const char *)choices[ui]); - } + 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 USE_OWNER_DRAWN +#if wxUSE_OWNER_DRAWN if ( m_windowStyle & wxLB_OWNERDRAW ) { - for (ui = 0; ui < (uint)n; ui++) { - // create new item which will process WM_{DRAW|MEASURE}ITEM messages - wxOwnerDrawn *pNewItem = CreateItem(ui); - pNewItem->SetName(choices[ui]); - m_aItems.Add(pNewItem); - ListBox_SetItemData(wx_list, ui, pNewItem); - } + // we don't support LBS_OWNERDRAWVARIABLE yet + wstyle |= LBS_OWNERDRAWFIXED; } #endif - if ((m_windowStyle & wxLB_MULTIPLE) == 0) - SendMessage(wx_list, LB_SETCURSEL, 0, 0); + // Without this style, you get unexpected heights, so e.g. constraint layout + // doesn't work properly + wstyle |= LBS_NOINTEGRALHEIGHT; - SetFont(* parent->GetFont()); + bool want3D; + WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D); - SetSize(x, y, width, height); + // Even with extended styles, need to combine with WS_BORDER for them to + // look right. + if ( want3D || wxStyleHasBorder(m_windowStyle) ) + { + wstyle |= WS_BORDER; + } - ShowWindow(wx_list, SW_SHOW); + m_hWnd = (WXHWND)::CreateWindowEx(exStyle, wxT("LISTBOX"), NULL, + wstyle | WS_CHILD, + 0, 0, 0, 0, + (HWND)parent->GetHWND(), (HMENU)m_windowId, + wxGetInstance(), NULL); - return TRUE; -} + wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create listbox") ); -wxListBox::~wxListBox(void) -{ -#if USE_OWNER_DRAWN - uint uiCount = m_aItems.Count(); - while ( uiCount-- != 0 ) { - delete m_aItems[uiCount]; +#if wxUSE_CTL3D + if (want3D) + { + Ctl3dSubclassCtl(GetHwnd()); + m_useCtl3D = TRUE; } #endif + + // Subclass again to catch messages + SubclassWin(m_hWnd); + + size_t ui; + for (ui = 0; ui < (size_t)n; ui++) { + Append(choices[ui]); + } + + if ( (m_windowStyle & wxLB_MULTIPLE) == 0 ) + SendMessage(GetHwnd(), LB_SETCURSEL, 0, 0); + + SetFont(parent->GetFont()); + + SetSize(x, y, width, height); + + return TRUE; } -void wxListBox::SetupColours(void) +wxListBox::~wxListBox() { - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); - SetForegroundColour(GetParent()->GetDefaultForegroundColour()); + Free(); } -void wxListBox::SetFirstItem(const int N) +void wxListBox::SetupColours() { - SendMessage(hwnd,LB_SETTOPINDEX,(WPARAM)N,(LPARAM)0) ; + SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); + SetForegroundColour(GetParent()->GetForegroundColour()); } -void wxListBox::SetFirstItem(const wxString& s) +// ---------------------------------------------------------------------------- +// implementation of wxListBoxBase methods +// ---------------------------------------------------------------------------- + +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(const int N) +void wxListBox::Delete(int N) { - SendMessage(hwnd, LB_DELETESTRING, N, 0); - m_noItems --; - SetHorizontalExtent(""); + wxCHECK_RET( N >= 0 && N < m_noItems, + 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(wxEmptyString); } -void wxListBox::Append(const wxString& item) +int wxListBox::DoAppend(const wxString& item) { - int index = ListBox_AddString(hwnd, item); - m_noItems ++; + int index = ListBox_AddString(GetHwnd(), item); + m_noItems++; -#if USE_OWNER_DRAWN +#if wxUSE_OWNER_DRAWN if ( m_windowStyle & wxLB_OWNERDRAW ) { - wxOwnerDrawn *pNewItem = CreateItem(-1); // dummy argument - pNewItem->SetName(item); - m_aItems.Add(pNewItem); - ListBox_SetItemData(hwnd, index, pNewItem); + wxOwnerDrawn *pNewItem = CreateLboxItem(index); // dummy argument + pNewItem->SetName(item); + m_aItems.Insert(pNewItem, index); + ListBox_SetItemData(GetHwnd(), index, pNewItem); + pNewItem->SetFont(GetFont()); } -#endif +#endif // wxUSE_OWNER_DRAWN + + SetHorizontalExtent(item); - SetHorizontalExtent(item); + return index; } -void wxListBox::Append(const wxString& item, char *Client_data) +void wxListBox::DoSetItems(const wxArrayString& choices, void** clientData) { - int index = ListBox_AddString(hwnd, item); - m_noItems ++; + // avoid flicker - but don't need to do this for a hidden listbox + bool hideAndShow = IsShown(); + if ( hideAndShow ) + { + ShowWindow(GetHwnd(), SW_HIDE); + } -#if USE_OWNER_DRAWN + ListBox_ResetContent(GetHwnd()); + + m_noItems = choices.GetCount(); + int i; + for (i = 0; i < m_noItems; i++) + { + ListBox_AddString(GetHwnd(), choices[i]); + if ( clientData ) + { + SetClientData(i, clientData[i]); + } + } + +#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"); + // first delete old items + WX_CLEAR_ARRAY(m_aItems); + + // then create new ones + 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); + } } - else -#endif - ListBox_SetItemData(hwnd, index, Client_data); +#endif // wxUSE_OWNER_DRAWN + + SetHorizontalExtent(); - SetHorizontalExtent(item); + if ( hideAndShow ) + { + // show the listbox back if we hid it + ShowWindow(GetHwnd(), SW_SHOW); + } } -void wxListBox::Set(const int n, const wxString *choices, char** clientData) +int wxListBox::FindString(const wxString& s) const { - ShowWindow(hwnd, SW_HIDE); - ListBox_ResetContent(hwnd); - int i; - for (i = 0; i < n; i++) - { - ListBox_AddString(hwnd, choices[i]); - if ( clientData ) - ListBox_SetItemData(hwnd, i, clientData[i]); - } - m_noItems = n; - -#if USE_OWNER_DRAWN - if ( m_windowStyle & wxLB_OWNERDRAW ) { - // first delete old items - uint ui = m_aItems.Count(); - while ( ui-- != 0 ) { - delete m_aItems[ui]; - } - m_aItems.Empty(); - - // then create new ones - for (ui = 0; ui < (uint)n; ui++) { - wxOwnerDrawn *pNewItem = CreateItem(ui); - pNewItem->SetName(choices[ui]); - m_aItems.Add(pNewItem); - ListBox_SetItemData(hwnd, ui, pNewItem); - - wxASSERT_MSG(clientData[ui] == NULL, - "Can't use client data with owner-drawn listboxes"); - } - } -#endif + int pos = ListBox_FindStringExact(GetHwnd(), (WPARAM)-1, s); + if (pos == LB_ERR) + return wxNOT_FOUND; + else + return pos; +} + +void wxListBox::Clear() +{ + Free(); - SetHorizontalExtent(""); - ShowWindow(hwnd, SW_SHOW); + ListBox_ResetContent(GetHwnd()); + + m_noItems = 0; + SetHorizontalExtent(); } -int wxListBox::FindString(const wxString& s) const +void wxListBox::Free() { - int pos = ListBox_FindStringExact(hwnd, (WPARAM)-1, s); - if (pos == LB_ERR) - return -1; - else - return pos; +#if wxUSE_OWNER_DRAWN + if ( m_windowStyle & wxLB_OWNERDRAW ) + { + WX_CLEAR_ARRAY(m_aItems); + } + else +#endif // wxUSE_OWNER_DRAWN + if ( HasClientObjectData() ) + { + for ( size_t n = 0; n < (size_t)m_noItems; n++ ) + { + delete GetClientObject(n); + } + } } -void wxListBox::Clear(void) +void wxListBox::SetSelection(int N, bool select) { - ListBox_ResetContent(hwnd); + wxCHECK_RET( N >= 0 && N < m_noItems, + wxT("invalid index in wxListBox::SetSelection") ); - m_noItems = 0; - ListBox_GetHorizontalExtent(hwnd); + if ( HasMultipleSelection() ) + { + SendMessage(GetHwnd(), LB_SETSEL, select, N); + } + else + { + SendMessage(GetHwnd(), LB_SETCURSEL, select ? N : -1, 0); + } } -void wxListBox::SetSelection(const int N, const bool select) +bool wxListBox::IsSelected(int N) const { - if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED)) - SendMessage(hwnd, LB_SETSEL, select, N); - else - { - int N1 = N; - if (!select) - N1 = -1; - SendMessage(hwnd, LB_SETCURSEL, N1, 0); - } + wxCHECK_MSG( N >= 0 && N < m_noItems, FALSE, + wxT("invalid index in wxListBox::Selected") ); + + return SendMessage(GetHwnd(), LB_GETSEL, N, 0) == 0 ? FALSE : TRUE; } -bool wxListBox::Selected(const int N) const +wxClientData* wxListBox::DoGetItemClientObject(int n) const { - return SendMessage(hwnd, LB_GETSEL, N, 0) == 0 ? FALSE : TRUE; + return (wxClientData *)DoGetItemClientData(n); } -void wxListBox::Deselect(const int N) +void *wxListBox::DoGetItemClientData(int n) const { - if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED)) - SendMessage(hwnd, LB_SETSEL, FALSE, N); + wxCHECK_MSG( n >= 0 && n < m_noItems, NULL, + wxT("invalid index in wxListBox::GetClientData") ); + + return (void *)SendMessage(GetHwnd(), LB_GETITEMDATA, n, 0); } -char *wxListBox::GetClientData(const int N) const +void wxListBox::DoSetItemClientObject(int n, wxClientData* clientData) { - return (char *)SendMessage(hwnd, LB_GETITEMDATA, N, 0); + DoSetItemClientData(n, clientData); } -void wxListBox::SetClientData(const int N, char *Client_data) +void wxListBox::DoSetItemClientData(int n, void *clientData) { - if ( ListBox_SetItemData(hwnd, N, Client_data) == LB_ERR ) - wxLogDebug("LB_SETITEMDATA failed"); + wxCHECK_RET( n >= 0 && n < m_noItems, + wxT("invalid index in wxListBox::SetClientData") ); + +#if wxUSE_OWNER_DRAWN + if ( m_windowStyle & wxLB_OWNERDRAW ) + { + // client data must be pointer to wxOwnerDrawn, otherwise we would crash + // in OnMeasure/OnDraw. + wxFAIL_MSG(wxT("Can't use client data with owner-drawn listboxes")); + } +#endif // wxUSE_OWNER_DRAWN + + if ( ListBox_SetItemData(GetHwnd(), n, clientData) == LB_ERR ) + wxLogDebug(wxT("LB_SETITEMDATA failed")); } // Return number of selections and an array of selected integers int wxListBox::GetSelections(wxArrayInt& aSelections) const { - aSelections.Empty(); - - if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED)) - { - int no_sel = ListBox_GetSelCount(hwnd); - if (no_sel != 0) { - int *selections = new int[no_sel]; - if ( ListBox_GetSelItems(hwnd, no_sel, selections) == LB_ERR ) { - wxFAIL_MSG("This listbox can't have single-selection style!"); - } - - aSelections.Alloc(no_sel); - for ( int n = 0; n < no_sel; n++ ) - aSelections.Add(selections[n]); - - delete [] selections; - } + aSelections.Empty(); - return no_sel; - } - else // single-selection listbox - { - aSelections.Add(ListBox_GetCurSel(hwnd)); + if ( HasMultipleSelection() ) + { + 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 countSel; + } + else // single-selection listbox + { + 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), - -1, - "GetSelection() can't be used with multiple-selection " - "listboxes, use GetSelections() instead." ); + wxCHECK_MSG( !HasMultipleSelection(), + -1, + wxT("GetSelection() can't be used with multiple-selection listboxes, use GetSelections() instead.") ); - return ListBox_GetCurSel(hwnd); + return ListBox_GetCurSel(GetHwnd()); } // Find string for position -wxString wxListBox::GetString(const int N) const +wxString wxListBox::GetString(int N) const { - if (N < 0 || N > m_noItems) - return wxString(""); - - int len = (int)SendMessage(hwnd, LB_GETTEXT, N, (LONG)wxBuffer); - wxBuffer[len] = 0; - return wxString(wxBuffer); -} + wxCHECK_MSG( N >= 0 && N < m_noItems, wxEmptyString, + wxT("invalid index in wxListBox::GetClientData") ); -void wxListBox::SetSize(const int x, const int y, const int width, const int height, const int sizeFlags) -{ - int currentX, currentY; - GetPosition(¤tX, ¤tY); - - int x1 = x; - int y1 = y; - int w1 = width; - int h1 = height; - - if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) - x1 = currentX; - if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) - y1 = currentY; - - // If we're prepared to use the existing size, then... - if (width == -1 && height == -1 && ((sizeFlags & wxSIZE_AUTO) != wxSIZE_AUTO)) - { - GetSize(&w1, &h1); - } - - int cx; // button font dimensions - int cy; - - wxGetCharSize(GetHWND(), &cx, &cy,GetFont()); - - float control_width, control_height, control_x, control_y; - - // Deal with default size (using -1 values) - if (w1<=0) - w1 = DEFAULT_ITEM_WIDTH; - - if (h1<=0) - h1 = DEFAULT_ITEM_HEIGHT; - - control_x = (float)x1; - control_y = (float)y1; - control_width = (float)w1; - control_height = (float)h1; - - // Calculations may have made size too small - if (control_height <= 0) - control_height = (float)DEFAULT_ITEM_HEIGHT; - - if (control_width <= 0) - control_width = (float)DEFAULT_ITEM_WIDTH; - -// wxDebugMsg("About to set the listbox height to %d", (int)control_height); - MoveWindow(hwnd, (int)control_x, (int)control_y, - (int)control_width, (int)control_height, TRUE); - -/* -#if WXWIN_COMPATIBILITY - GetEventHandler()->OldOnSize(width, height); -#else - wxSizeEvent event(wxSize(width, height), m_windowId); - event.eventObject = this; - GetEventHandler()->ProcessEvent(event); -#endif -*/ + int len = ListBox_GetTextLen(GetHwnd(), N); + // +1 for terminating NUL + wxString result; + ListBox_GetText(GetHwnd(), N, result.GetWriteBuf(len + 1)); + result.UngetWriteBuf(); + + 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) +void +wxListBox::DoInsertItems(const wxArrayString& items, int pos) { - // Only necessary if we want a horizontal scrollbar - if (!(m_windowStyle & wxHSCROLL)) - return; - TEXTMETRIC lpTextMetric; - - if (s != "") - { - int existingExtent = (int)SendMessage(hwnd, LB_GETHORIZONTALEXTENT, 0, 0L); - HDC dc = GetWindowDC(hwnd); - HFONT oldFont = 0; - if (GetFont() && GetFont()->GetResourceHandle()) - oldFont = ::SelectObject(dc, (HFONT) GetFont()->GetResourceHandle()); - - GetTextMetrics(dc, &lpTextMetric); - SIZE extentXY; - ::GetTextExtentPoint(dc, (LPSTR) (const char *)s, s.Length(), &extentXY); - int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth); - - if (oldFont) - ::SelectObject(dc, oldFont); - - ReleaseDC(hwnd, dc); - if (extentX > existingExtent) - SendMessage(hwnd, LB_SETHORIZONTALEXTENT, LOWORD(extentX), 0L); - return; - } - else - { - int largestExtent = 0; - HDC dc = GetWindowDC(hwnd); - HFONT oldFont = 0; - if (GetFont() && GetFont()->GetResourceHandle()) - oldFont = ::SelectObject(dc, (HFONT) GetFont()->GetResourceHandle()); - - GetTextMetrics(dc, &lpTextMetric); - int i; - for (i = 0; i < m_noItems; i++) + wxCHECK_RET( pos >= 0 && pos <= m_noItems, + wxT("invalid index in wxListBox::InsertItems") ); + + int nItems = items.GetCount(); + for ( int i = 0; i < nItems; i++ ) { - int len = (int)SendMessage(hwnd, LB_GETTEXT, i, (LONG)wxBuffer); - wxBuffer[len] = 0; - SIZE extentXY; - ::GetTextExtentPoint(dc, (LPSTR)wxBuffer, len, &extentXY); - int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth); - if (extentX > largestExtent) - largestExtent = extentX; + 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); + } +#endif // wxUSE_OWNER_DRAWN } - if (oldFont) - ::SelectObject(dc, oldFont); - ReleaseDC(hwnd, dc); - SendMessage(hwnd, LB_SETHORIZONTALEXTENT, LOWORD(largestExtent), 0L); - } + m_noItems += nItems; + + SetHorizontalExtent(); } -void -wxListBox::InsertItems(const int nItems, const wxString items[], const int pos) +void wxListBox::SetString(int N, const wxString& s) { - int i; - for (i = 0; i < nItems; i++) - ListBox_InsertString(hwnd, i + pos, items[i]); - m_noItems += nItems; + wxCHECK_RET( N >= 0 && N < m_noItems, + wxT("invalid index in wxListBox::SetString") ); - #if USE_OWNER_DRAWN - if ( m_windowStyle & wxLB_OWNERDRAW ) { - for ( i = 0; i < nItems; i++ ) { - wxOwnerDrawn *pNewItem = CreateItem((uint)(pos + i)); - pNewItem->SetName(items[i]); - m_aItems.Insert(pNewItem, (uint)(pos + i)); - ListBox_SetItemData(hwnd, i, pNewItem); - } - } - #endif + // remember the state of the item + bool wasSelected = IsSelected(N); - SetHorizontalExtent(""); -} + void *oldData = NULL; + wxClientData *oldObjData = NULL; + if ( m_clientDataItemsType == wxClientData_Void ) + oldData = GetClientData(N); + else if ( m_clientDataItemsType == wxClientData_Object ) + oldObjData = GetClientObject(N); -void wxListBox::SetString(const int N, const wxString& s) -{ - int sel = GetSelection(); - - char *oldData = (char *)wxListBox::GetClientData(N); - - SendMessage(hwnd, LB_DELETESTRING, N, 0); - - int newN = N; - if (N == (m_noItems - 1)) - newN = -1; - - SendMessage(hwnd, LB_INSERTSTRING, newN, (LPARAM) (const char *)s); - if (oldData) - wxListBox::SetClientData(N, oldData); - - // Selection may have changed - if (sel >= 0) - SetSelection(sel); - -#if USE_OWNER_DRAWN - if ( m_windowStyle & wxLB_OWNERDRAW ) - // update item's text - m_aItems[N]->SetName(s); + // delete and recreate it + SendMessage(GetHwnd(), LB_DELETESTRING, N, 0); + + int newN = N; + if ( N == m_noItems - 1 ) + newN = -1; + + ListBox_InsertString(GetHwnd(), newN, s); + + // restore the client data + if ( oldData ) + SetClientData(N, oldData); + else if ( oldObjData ) + SetClientObject(N, oldObjData); + + // we may have lost the selection + if ( wasSelected ) + Select(N); + +#if wxUSE_OWNER_DRAWN + if ( m_windowStyle & wxLB_OWNERDRAW ) + { + // update item's text + m_aItems[N]->SetName(s); + + // reassign the item's data + ListBox_SetItemData(GetHwnd(), N, m_aItems[N]); + } #endif //USE_OWNER_DRAWN } -int wxListBox::Number (void) const +int wxListBox::GetCount() const { - return m_noItems; + return m_noItems; } -// For single selection items only -wxString wxListBox::GetStringSelection (void) const -{ - int sel = GetSelection (); - if (sel > -1) - return this->GetString (sel); - else - return wxString(""); -} +// ---------------------------------------------------------------------------- +// helpers +// ---------------------------------------------------------------------------- -bool wxListBox::SetStringSelection (const wxString& s, const bool flag) +// 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 sel = FindString (s); - if (sel > -1) + // Only necessary if we want a horizontal scrollbar + if (!(m_windowStyle & wxHSCROLL)) + return; + TEXTMETRIC lpTextMetric; + + if ( !s.IsEmpty() ) { - SetSelection (sel, flag); - return TRUE; + 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); + + ReleaseDC(GetHwnd(), dc); + if (extentX > existingExtent) + SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(extentX), 0L); + } + else + { + 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++) + { + 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; + } + if (oldFont) + ::SelectObject(dc, oldFont); + + ReleaseDC(GetHwnd(), dc); + SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(largestExtent), 0L); } - 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) +wxSize wxListBox::DoGetBestSize() const { - if (event.m_extraLong) - SetSelection (event.m_commandInt); - else + // find the widest string + int wLine; + int wListbox = 0; + for ( int i = 0; i < m_noItems; i++ ) { - Deselect (event.m_commandInt); - return; + wxString str(GetString(i)); + GetTextExtent(str, &wLine, NULL); + if ( wLine > wListbox ) + wListbox = wLine; } - ProcessCommand (event); -} -WXHBRUSH wxListBox::OnCtlColor(const WXHDC pDC, const WXHWND pWnd, const WXUINT nCtlColor, - WXUINT message, WXWPARAM wParam, WXLPARAM lParam) -{ -#if CTL3D - if ( m_useCtl3D ) - { - HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam); - return (WXHBRUSH) hbrush; - } -#endif + // give it some reasonable default value if there are no strings in the + // list + if ( wListbox == 0 ) + wListbox = 100; - if (GetParent()->GetTransparentBackground()) - SetBkMode((HDC) pDC, TRANSPARENT); - else - SetBkMode((HDC) pDC, OPAQUE); + // the listbox should be slightly larger than the widest string + int cx, cy; + wxGetCharSize(GetHWND(), &cx, &cy, &GetFont()); - ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue())); - ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue())); + wListbox += 3*cx; - wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID); + // 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); - // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush - // has a zero usage count. - backgroundBrush->RealizeResource(); - return (WXHBRUSH) backgroundBrush->GetResourceHandle(); + return wxSize(wListbox, hListbox); } -long wxListBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) +// ---------------------------------------------------------------------------- +// callbacks +// ---------------------------------------------------------------------------- + +bool wxListBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) { -#if 0 - switch (nMsg) - { - case WM_INITDIALOG: - case WM_ACTIVATE: - case WM_SETFOCUS: - case WM_KILLFOCUS: - case WM_CREATE: - case WM_PAINT: - case WM_QUERYDRAGICON: - case WM_SIZE: - case WM_RBUTTONDOWN: - case WM_RBUTTONUP: - case WM_RBUTTONDBLCLK: - case WM_MBUTTONDOWN: - case WM_MBUTTONUP: - case WM_MBUTTONDBLCLK: - case WM_LBUTTONDOWN: - case WM_LBUTTONUP: - case WM_LBUTTONDBLCLK: - case WM_MOUSEMOVE: - case WM_DESTROY: - case WM_COMMAND: - case WM_NOTIFY: - case WM_MENUSELECT: - case WM_INITMENUPOPUP: - case WM_DRAWITEM: - case WM_MEASUREITEM: - case WM_KEYDOWN: - case WM_KEYUP: - case WM_CHAR: // Always an ASCII character - case WM_HSCROLL: - case WM_VSCROLL: - case WM_CTLCOLORBTN: - case WM_CTLCOLORDLG: - case WM_CTLCOLORLISTBOX: - case WM_CTLCOLORMSGBOX: - case WM_CTLCOLORSCROLLBAR: - case WM_CTLCOLORSTATIC: - case WM_CTLCOLOREDIT: - case WM_SYSCOLORCHANGE: - case WM_ERASEBKGND: - case WM_MDIACTIVATE: - case WM_DROPFILES: - case WM_QUERYENDSESSION: - case WM_CLOSE: - case WM_GETMINMAXINFO: - case WM_NCHITTEST: - return MSWDefWindowProc(nMsg, wParam, lParam ); + wxEventType evtType; + if ( param == LBN_SELCHANGE ) + { + evtType = wxEVT_COMMAND_LISTBOX_SELECTED; } -#endif - return wxControl::MSWWindowProc(nMsg, wParam, lParam); + else if ( param == LBN_DBLCLK ) + { + evtType = wxEVT_COMMAND_LISTBOX_DOUBLECLICKED; + } + else + { + // some event we're not interested in + return FALSE; + } + + wxCommandEvent event(evtType, m_windowId); + event.SetEventObject( this ); + + // retrieve the affected item + int n = SendMessage(GetHwnd(), LB_GETCARETINDEX, 0, 0); + if ( n != LB_ERR ) + { + if ( HasClientObjectData() ) + event.SetClientObject( GetClientObject(n) ); + else if ( HasClientUntypedData() ) + event.SetClientData( GetClientData(n) ); + + event.SetString( GetString(n) ); + event.SetExtraLong( HasMultipleSelection() ? IsSelected(n) : TRUE ); + } + + event.m_commandInt = n; + + return GetEventHandler()->ProcessEvent(event); } -#if USE_OWNER_DRAWN +// ---------------------------------------------------------------------------- +// wxCheckListBox support +// ---------------------------------------------------------------------------- + +#if wxUSE_OWNER_DRAWN // drawing // ------- @@ -776,48 +707,61 @@ long wxListBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) #define OWNER_DRAWN_LISTBOX_EXTRA_SPACE (1) // the height is the same for all items -// ## should be changed for LBS_OWNERDRAWVARIABLE style listboxes -// NB: can't forward this to wxListBoxItem because LB_SETITEMDATA -// message is not yet sent when we get here! +// TODO should be changed for LBS_OWNERDRAWVARIABLE style listboxes + +// NB: can't forward this to wxListBoxItem because LB_SETITEMDATA +// message is not yet sent when we get here! bool wxListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item) { - // only owner-drawn control should receive this message - wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE ); + // only owner-drawn control should receive this message + wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE ); - MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item; + MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item; - wxDC dc; - dc.SetHDC((WXHDC)CreateIC("DISPLAY", NULL, NULL, 0)); - dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_ANSI_VAR_FONT)); + HDC hdc = CreateIC(wxT("DISPLAY"), NULL, NULL, 0); - pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE; - pStruct->itemWidth = dc.GetCharWidth(); + wxDC dc; + dc.SetHDC((WXHDC)hdc); + dc.SetFont(wxSystemSettings::GetFont(wxSYS_ANSI_VAR_FONT)); - return TRUE; + pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE; + pStruct->itemWidth = dc.GetCharWidth(); + + 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 ); + // only owner-drawn control should receive this message + wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE ); + + DRAWITEMSTRUCT *pStruct = (DRAWITEMSTRUCT *)item; + UINT itemID = pStruct->itemID; - DRAWITEMSTRUCT *pStruct = (DRAWITEMSTRUCT *)item; - wxListBoxItem *pItem = (wxListBoxItem *)SendMessage(hwnd, LB_GETITEMDATA, - pStruct->itemID, 0); + // the item may be -1 for an empty listbox + if ( itemID == (UINT)-1 ) + return FALSE; - wxCHECK( (int)pItem != LB_ERR, FALSE ); + long data = ListBox_GetItemData(GetHwnd(), pStruct->itemID); - wxDC dc; - dc.SetHDC((WXHDC)pStruct->hDC, FALSE); - wxRect rect(pStruct->rcItem.left, pStruct->rcItem.top, - pStruct->rcItem.right - pStruct->rcItem.left, - pStruct->rcItem.bottom - pStruct->rcItem.top); + wxCHECK( data && (data != LB_ERR), FALSE ); - return pItem->OnDrawItem(dc, rect, - (wxOwnerDrawn::wxODAction)pStruct->itemAction, - (wxOwnerDrawn::wxODStatus)pStruct->itemState); + wxListBoxItem *pItem = (wxListBoxItem *)data; + + wxDCTemp dc((WXHDC)pStruct->hDC); + wxRect rect(wxPoint(pStruct->rcItem.left, pStruct->rcItem.top), + wxPoint(pStruct->rcItem.right, pStruct->rcItem.bottom)); + + return pItem->OnDrawItem(dc, rect, + (wxOwnerDrawn::wxODAction)pStruct->itemAction, + (wxOwnerDrawn::wxODStatus)pStruct->itemState); } -#endif - // USE_OWNER_DRAWN +#endif // wxUSE_OWNER_DRAWN + +#endif // wxUSE_LISTBOX