X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a23fd0e1d1329a4a258b4defb3e0b0001b700c6e..19e30148e18cc99296b26503c155e5cef59045f4:/src/msw/listbox.cpp diff --git a/src/msw/listbox.cpp b/src/msw/listbox.cpp index 4ca6a3955b..6d1f05a556 100644 --- a/src/msw/listbox.cpp +++ b/src/msw/listbox.cpp @@ -1,5 +1,5 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: listbox.cpp +// Name: src/msw/listbox.cpp // Purpose: wxListBox // Author: Julian Smart // Modified by: Vadim Zeitlin (owner drawn stuff) @@ -20,40 +20,70 @@ #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 +#ifdef __WXWINE__ + #if defined(GetWindowStyle) + #undef GetWindowStyle + #endif #endif -#ifdef GetCharWidth - #undef GetCharWidth -#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" +#ifndef __TWIN32__ + #ifdef __GNUWIN32_OLD__ + #include "wx/msw/gnuwin32/extra.h" + #endif +#endif -#if !USE_SHARED_LIBRARY - IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl) +#ifdef __WXWINE__ + #ifndef ListBox_SetItemData + #define ListBox_SetItemData(hwndCtl, index, data) \ + ((int)(DWORD)SendMessage((hwndCtl), LB_SETITEMDATA, (WPARAM)(int)(index), (LPARAM)(data))) + #endif + #ifndef ListBox_GetHorizontalExtent + #define ListBox_GetHorizontalExtent(hwndCtl) \ + ((int)(DWORD)SendMessage((hwndCtl), LB_GETHORIZONTALEXTENT, 0L, 0L)) + #endif + #ifndef ListBox_GetSelCount + #define ListBox_GetSelCount(hwndCtl) \ + ((int)(DWORD)SendMessage((hwndCtl), LB_GETSELCOUNT, 0L, 0L)) + #endif + #ifndef ListBox_GetSelItems + #define ListBox_GetSelItems(hwndCtl, cItems, lpItems) \ + ((int)(DWORD)SendMessage((hwndCtl), LB_GETSELITEMS, (WPARAM)(int)(cItems), (LPARAM)(int *)(lpItems))) + #endif + #ifndef ListBox_GetTextLen + #define ListBox_GetTextLen(hwndCtl, index) \ + ((int)(DWORD)SendMessage((hwndCtl), LB_GETTEXTLEN, (WPARAM)(int)(index), 0L)) + #endif + #ifndef ListBox_GetText + #define ListBox_GetText(hwndCtl, index, lpszBuffer) \ + ((int)(DWORD)SendMessage((hwndCtl), LB_GETTEXT, (WPARAM)(int)(index), (LPARAM)(LPCTSTR)(lpszBuffer))) + #endif #endif + IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl) + // ============================================================================ // list box item declaration and implementation // ============================================================================ @@ -72,7 +102,7 @@ wxListBoxItem::wxListBoxItem(const wxString& str) : wxOwnerDrawn(str, FALSE) SetMarginWidth(0); } -wxOwnerDrawn *wxListBox::CreateItem(size_t n) +wxOwnerDrawn *wxListBox::CreateItem(size_t WXUNUSED(n)) { return new wxListBoxItem(); } @@ -83,51 +113,11 @@ 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; @@ -148,13 +138,14 @@ bool wxListBox::Create(wxWindow *parent, m_selected = 0; SetName(name); +#if wxUSE_VALIDATORS SetValidator(validator); +#endif // wxUSE_VALIDATORS if (parent) parent->AddChild(this); - wxSystemSettings settings; - SetBackgroundColour(settings.GetSystemColour(wxSYS_COLOUR_WINDOW)); + SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); SetForegroundColour(parent->GetForegroundColour()); m_windowId = ( id == -1 ) ? (int)NewControlId() : id; @@ -165,14 +156,21 @@ bool wxListBox::Create(wxWindow *parent, int height = size.y; m_windowStyle = style; - DWORD wstyle = WS_VSCROLL | WS_TABSTOP | LBS_NOTIFY | LBS_HASSTRINGS; + DWORD wstyle = WS_VISIBLE | WS_VSCROLL | WS_TABSTOP | + LBS_NOTIFY | LBS_HASSTRINGS /* | WS_CLIPSIBLINGS */; + + wxASSERT_MSG( !(style & wxLB_MULTIPLE) || !(style & wxLB_EXTENDED), + _T("only one of listbox selection modes can be specified") ); + if ( m_windowStyle & wxCLIP_SIBLINGS ) + wstyle |= WS_CLIPSIBLINGS; + if (m_windowStyle & wxLB_MULTIPLE) wstyle |= LBS_MULTIPLESEL; else if (m_windowStyle & wxLB_EXTENDED) wstyle |= LBS_EXTENDEDSEL; if (m_windowStyle & wxLB_ALWAYS_SB) - wstyle |= LBS_DISABLENOSCROLL ; + wstyle |= LBS_DISABLENOSCROLL; if (m_windowStyle & wxLB_HSCROLL) wstyle |= WS_HSCROLL; if (m_windowStyle & wxLB_SORT) @@ -190,22 +188,22 @@ bool wxListBox::Create(wxWindow *parent, wstyle |= LBS_NOINTEGRALHEIGHT; bool want3D; - WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ; + WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D); - // Even with extended styles, need to combine with WS_BORDER - // for them to look right. + // Even with extended styles, need to combine with WS_BORDER for them to + // look right. if ( want3D || wxStyleHasBorder(m_windowStyle) ) { wstyle |= WS_BORDER; } - m_hWnd = (WXHWND)::CreateWindowEx(exStyle, "LISTBOX", NULL, + m_hWnd = (WXHWND)::CreateWindowEx(exStyle, wxT("LISTBOX"), NULL, wstyle | WS_CHILD, 0, 0, 0, 0, (HWND)parent->GetHWND(), (HMENU)m_windowId, wxGetInstance(), NULL); - wxCHECK_MSG( m_hWnd, FALSE, "Failed to create listbox" ); + wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create listbox") ); #if wxUSE_CTL3D if (want3D) @@ -230,47 +228,46 @@ bool wxListBox::Create(wxWindow *parent, SetSize(x, y, width, height); - Show(TRUE); - return TRUE; } wxListBox::~wxListBox() { -#if wxUSE_OWNER_DRAWN - size_t uiCount = m_aItems.Count(); - while ( uiCount-- != 0 ) { - delete m_aItems[uiCount]; - } -#endif // wxUSE_OWNER_DRAWN + Free(); } void wxListBox::SetupColours() { - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); + SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); SetForegroundColour(GetParent()->GetForegroundColour()); } -void wxListBox::SetFirstItem(int N) -{ - wxCHECK_RET( N >= 0 && N < m_noItems, - "invalid index in wxListBox::SetFirstItem" ); +// ---------------------------------------------------------------------------- +// implementation of wxListBoxBase methods +// ---------------------------------------------------------------------------- - SendMessage(GetHwnd(),LB_SETTOPINDEX,(WPARAM)N,(LPARAM)0) ; -} - -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--; @@ -278,155 +275,175 @@ void wxListBox::Delete(int N) SetHorizontalExtent(""); } -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 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); + + 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 ) + { +#if wxUSE_OWNER_DRAWN + if ( m_windowStyle & wxLB_OWNERDRAW ) + { + wxASSERT_MSG(clientData[i] == NULL, + wxT("Can't use client data with owner-drawn listboxes")); + } + ListBox_SetItemData(GetHwnd(), i, clientData[i]); +#else // !wxUSE_OWNER_DRAWN ListBox_SetItemData(GetHwnd(), i, clientData[i]); +#endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN + } } - 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++) { + for ( size_t ui = 0; ui < (size_t)m_noItems; ui++ ) { wxOwnerDrawn *pNewItem = CreateItem(ui); pNewItem->SetName(choices[ui]); m_aItems.Add(pNewItem); ListBox_SetItemData(GetHwnd(), ui, pNewItem); - - 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); + } } 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(); +} + +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) { wxCHECK_RET( N >= 0 && N < m_noItems, - "invalid index in wxListBox::SetSelection" ); + 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" ); + wxT("invalid index in wxListBox::Selected") ); 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 @@ -434,14 +451,14 @@ 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 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++ ) @@ -454,20 +471,19 @@ int wxListBox::GetSelections(wxArrayInt& aSelections) const } 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()); } @@ -476,7 +492,7 @@ int wxListBox::GetSelection() const wxString wxListBox::GetString(int N) const { wxCHECK_MSG( N >= 0 && N < m_noItems, "", - "invalid index in wxListBox::GetClientData" ); + wxT("invalid index in wxListBox::GetClientData") ); int len = ListBox_GetTextLen(GetHwnd(), N); @@ -488,65 +504,89 @@ wxString wxListBox::GetString(int N) const 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 + wxOwnerDrawn *pNewItem = CreateItem(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); +#endif // wxUSE_OWNER_DRAWN } - int cx; // button font dimensions - int cy; + m_noItems += nItems; + + SetHorizontalExtent(); +} - wxGetCharSize(GetHWND(), &cx, &cy, & this->GetFont()); +void wxListBox::SetString(int N, const wxString& s) +{ + wxCHECK_RET( N >= 0 && N < m_noItems, + wxT("invalid index in wxListBox::SetString") ); - float control_width, control_height, control_x, control_y; + // remember the state of the item + bool wasSelected = IsSelected(N); - // Deal with default size (using -1 values) - if (w1<=0) - w1 = DEFAULT_ITEM_WIDTH; + void *oldData = NULL; + wxClientData *oldObjData = NULL; + if ( m_clientDataItemsType == wxClientData_Void ) + oldData = GetClientData(N); + else if ( m_clientDataItemsType == wxClientData_Object ) + oldObjData = GetClientObject(N); - if (h1<=0) - h1 = DEFAULT_ITEM_HEIGHT; + // delete and recreate it + SendMessage(GetHwnd(), LB_DELETESTRING, N, 0); - control_x = (float)x1; - control_y = (float)y1; - control_width = (float)w1; - control_height = (float)h1; + int newN = N; + if ( N == m_noItems - 1 ) + newN = -1; - // Calculations may have made size too small - if (control_height <= 0) - control_height = (float)DEFAULT_ITEM_HEIGHT; + ListBox_InsertString(GetHwnd(), newN, s); - if (control_width <= 0) - control_width = (float)DEFAULT_ITEM_WIDTH; + // restore the client data + if ( oldData ) + SetClientData(N, oldData); + else if ( oldObjData ) + SetClientObject(N, oldObjData); - MoveWindow(GetHwnd(), - (int)control_x, (int)control_y, - (int)control_width, (int)control_height, - TRUE); + // 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::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) { @@ -555,7 +595,7 @@ void wxListBox::SetHorizontalExtent(const wxString& s) return; TEXTMETRIC lpTextMetric; - if (s != "") + if ( !s.IsEmpty() ) { int existingExtent = (int)SendMessage(GetHwnd(), LB_GETHORIZONTALEXTENT, 0, 0L); HDC dc = GetWindowDC(GetHwnd()); @@ -565,7 +605,7 @@ void wxListBox::SetHorizontalExtent(const wxString& s) GetTextMetrics(dc, &lpTextMetric); SIZE extentXY; - ::GetTextExtentPoint(dc, (LPSTR) (const char *)s, s.Length(), &extentXY); + ::GetTextExtentPoint(dc, (LPTSTR) (const wxChar *)s, s.Length(), &extentXY); int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth); if (oldFont) @@ -574,7 +614,6 @@ void wxListBox::SetHorizontalExtent(const wxString& s) ReleaseDC(GetHwnd(), dc); if (extentX > existingExtent) SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(extentX), 0L); - return; } else { @@ -591,7 +630,7 @@ void wxListBox::SetHorizontalExtent(const wxString& s) int len = (int)SendMessage(GetHwnd(), LB_GETTEXT, i, (LONG)wxBuffer); wxBuffer[len] = 0; SIZE extentXY; - ::GetTextExtentPoint(dc, (LPSTR)wxBuffer, len, &extentXY); + ::GetTextExtentPoint(dc, (LPTSTR)wxBuffer, len, &extentXY); int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth); if (extentX > largestExtent) largestExtent = extentX; @@ -604,128 +643,86 @@ void wxListBox::SetHorizontalExtent(const wxString& s) } } -void -wxListBox::InsertItems(int nItems, const wxString items[], int pos) -{ - 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) +wxSize wxListBox::DoGetBestSize() const { - wxCHECK_RET( N >= 0 && N < m_noItems, - "invalid index in wxListBox::SetString" ); + // 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; + } - int sel = -1; - if (!(m_windowStyle & wxLB_MULTIPLE) && !(m_windowStyle & wxLB_EXTENDED)) - sel = GetSelection(); + // give it some reasonable default value if there are no strings in the + // list + if ( wListbox == 0 ) + wListbox = 100; - char *oldData = (char *)wxListBox::GetClientData(N); + // the listbox should be slightly larger than the widest string + int cx, cy; + wxGetCharSize(GetHWND(), &cx, &cy, &GetFont()); - SendMessage(GetHwnd(), LB_DELETESTRING, N, 0); - - 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); + // 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); - // Selection may have changed - if (sel >= 0) - SetSelection(sel); - -#if wxUSE_OWNER_DRAWN - if ( m_windowStyle & wxLB_OWNERDRAW ) - // update item's text - m_aItems[N]->SetName(s); -#endif //USE_OWNER_DRAWN + return wxSize(wListbox, hListbox); } -int wxListBox::Number () const -{ - return m_noItems; -} - -// For single selection items only -wxString wxListBox::GetStringSelection () const -{ - int sel = GetSelection (); - if (sel > -1) - return this->GetString (sel); - else - return wxString(""); -} +// ---------------------------------------------------------------------------- +// callbacks +// ---------------------------------------------------------------------------- -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 if ( param == LBN_DBLCLK ) + { + evtType = wxEVT_COMMAND_LISTBOX_DOUBLECLICKED; } - 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 { - Deselect (event.m_commandInt); - return; + // some event we're not interested in + return FALSE; } - ProcessCommand (event); -} -WXHBRUSH wxListBox::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor, - WXUINT message, WXWPARAM wParam, WXLPARAM lParam) -{ -#if wxUSE_CTL3D - if ( m_useCtl3D ) + wxCommandEvent event(evtType, m_windowId); + event.SetEventObject( this ); + + wxArrayInt aSelections; + int n, count = GetSelections(aSelections); + if ( count > 0 ) { - HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam); - return (WXHBRUSH) hbrush; + n = aSelections[0]; + if ( HasClientObjectData() ) + event.SetClientObject( GetClientObject(n) ); + else if ( HasClientUntypedData() ) + event.SetClientData( GetClientData(n) ); + event.SetString( GetString(n) ); } -#endif - - if (GetParent()->GetTransparentBackground()) - SetBkMode((HDC) pDC, TRANSPARENT); else - SetBkMode((HDC) pDC, OPAQUE); - - ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue())); - ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue())); + { + n = -1; + } - wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID); + event.m_commandInt = n; - // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush - // has a zero usage count. - backgroundBrush->RealizeResource(); - return (WXHBRUSH) backgroundBrush->GetResourceHandle(); + return GetEventHandler()->ProcessEvent(event); } -long wxListBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) -{ - return wxControl::MSWWindowProc(nMsg, wParam, lParam); -} +// ---------------------------------------------------------------------------- +// wxCheckListBox support +// ---------------------------------------------------------------------------- #if wxUSE_OWNER_DRAWN @@ -748,13 +745,19 @@ bool wxListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item) MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item; + HDC hdc = CreateIC(wxT("DISPLAY"), NULL, NULL, 0); + wxDC dc; - dc.SetHDC((WXHDC)CreateIC("DISPLAY", NULL, NULL, 0)); - dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_ANSI_VAR_FONT)); + dc.SetHDC((WXHDC)hdc); + dc.SetFont(wxSystemSettings::GetFont(wxSYS_ANSI_VAR_FONT)); pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE; pStruct->itemWidth = dc.GetCharWidth(); + dc.SetHDC(0); + + DeleteDC(hdc); + return TRUE; } @@ -765,6 +768,11 @@ bool wxListBox::MSWOnDraw(WXDRAWITEMSTRUCT *item) 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); @@ -772,15 +780,15 @@ bool wxListBox::MSWOnDraw(WXDRAWITEMSTRUCT *item) wxListBoxItem *pItem = (wxListBoxItem *)data; - wxDC dc; - dc.SetHDC((WXHDC)pStruct->hDC, FALSE); + wxDCTemp dc((WXHDC)pStruct->hDC); wxRect rect(wxPoint(pStruct->rcItem.left, pStruct->rcItem.top), - wxPoint(pStruct->rcItem.right, pStruct->rcItem.bottom)); + wxPoint(pStruct->rcItem.right, pStruct->rcItem.bottom)); 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