X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1e6feb95a79834836e88143b15d9f424ebe79621..eed9e4791274d68ea1fb0c556bf3199ecf88a7d9:/src/msw/choice.cpp diff --git a/src/msw/choice.cpp b/src/msw/choice.cpp index 6c9206a796..e80ff3b166 100644 --- a/src/msw/choice.cpp +++ b/src/msw/choice.cpp @@ -5,8 +5,8 @@ // Modified by: Vadim Zeitlin to derive from wxChoiceBase // Created: 04/01/98 // RCS-ID: $Id$ -// Copyright: (c) Julian Smart and Markus Holzem -// Licence: wxWindows license +// Copyright: (c) Julian Smart +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // ============================================================================ @@ -17,7 +17,7 @@ // headers // ---------------------------------------------------------------------------- -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "choice.h" #endif @@ -40,7 +40,63 @@ #include "wx/msw/private.h" +#if wxUSE_EXTENDED_RTTI +WX_DEFINE_FLAGS( wxChoiceStyle ) + +wxBEGIN_FLAGS( wxChoiceStyle ) + // 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) + +wxEND_FLAGS( wxChoiceStyle ) + +IMPLEMENT_DYNAMIC_CLASS_XTI(wxChoice, wxControl,"wx/choice.h") + +wxBEGIN_PROPERTIES_TABLE(wxChoice) + wxEVENT_PROPERTY( Select , wxEVT_COMMAND_CHOICE_SELECTED , wxCommandEvent ) + + wxPROPERTY( Font , wxFont , SetFont , GetFont , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) + wxPROPERTY_COLLECTION( Choices , wxArrayString , wxString , AppendString , GetStrings , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) + wxPROPERTY( Selection ,int, SetSelection, GetSelection, , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) + wxPROPERTY_FLAGS( WindowStyle , wxChoiceStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style +wxEND_PROPERTIES_TABLE() + +wxBEGIN_HANDLERS_TABLE(wxChoice) +wxEND_HANDLERS_TABLE() + +wxCONSTRUCTOR_4( wxChoice , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size ) +#else IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl) +#endif +/* + TODO PROPERTIES + selection (long) + content (list) + item +*/ // ============================================================================ // implementation @@ -59,17 +115,6 @@ bool wxChoice::Create(wxWindow *parent, const wxValidator& validator, const wxString& name) { - if ( !CreateControl(parent, id, pos, size, style, validator, name) ) - return FALSE; - - long msStyle = WS_CHILD | CBS_DROPDOWNLIST | WS_TABSTOP | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL /* | WS_CLIPSIBLINGS */; - if ( style & wxCB_SORT ) - msStyle |= CBS_SORT; - - if ( style & wxCLIP_SIBLINGS ) - msStyle |= WS_CLIPSIBLINGS; - - // Experience shows that wxChoice vs. wxComboBox distinction confuses // quite a few people - try to help them wxASSERT_MSG( !(style & wxCB_DROPDOWN) && @@ -78,23 +123,105 @@ bool wxChoice::Create(wxWindow *parent, _T("this style flag is ignored by wxChoice, you ") _T("probably want to use a wxComboBox") ); - if ( !MSWCreateControl(wxT("COMBOBOX"), msStyle) ) + return CreateAndInit(parent, id, pos, size, n, choices, style, + validator, name); +} + +bool wxChoice::CreateAndInit(wxWindow *parent, + wxWindowID id, + const wxPoint& pos, + const wxSize& sizeOrig, + int n, const wxString choices[], + long style, + const wxValidator& validator, + const wxString& name) +{ + // this is a bit hackish but we want to prevent MSWCreateControl() from + // calling SetBestSize() (which it would do if any of the size components + // is not given) because it wouldn't calculate it correctly if we have any + // strings as they're not yet added to the control when it is called + // + // so: if we have any strings, we fudge the size parameter so that + // SetBestSize() is not called by MSWCreateControl() but then we do call it + // manually below + bool autoSize = false; + wxSize size = sizeOrig; + if ( n ) + { + if ( size.x < 0 ) + { + size.x = 1; + autoSize = true; + } + if ( size.y < 0 ) + { + size.y = 1; + autoSize = true; + } + } + + // initialize wxControl + if ( !CreateControl(parent, id, pos, size, style, validator, name) ) + return FALSE; + + // now create the real HWND + if ( !MSWCreateControl(wxT("COMBOBOX"), _T(""), pos, size) ) return FALSE; - // A choice/combobox normally has a white background (or other, depending - // on global settings) rather than inheriting the parent's background colour. - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); + // choice/combobox normally has "white" (depends on colour scheme, of + // course) background rather than inheriting the parent's background + SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); + + // initialize the controls contents for ( int i = 0; i < n; i++ ) { Append(choices[i]); } - SetSize(pos.x, pos.y, size.x, size.y); + // and now we may finally size the control properly (if needed) + if ( autoSize ) + { + SetBestSize(sizeOrig); + } return TRUE; } +bool wxChoice::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); +} + +WXDWORD wxChoice::MSWGetStyle(long style, WXDWORD *exstyle) const +{ + // we never have an external border + WXDWORD msStyle = wxControl::MSWGetStyle + ( + (style & ~wxBORDER_MASK) | wxBORDER_NONE, exstyle + ); + + // WS_CLIPSIBLINGS is useful with wxChoice and doesn't seem to result in + // any problems + msStyle |= WS_CLIPSIBLINGS; + + // wxChoice-specific styles + msStyle |= CBS_DROPDOWNLIST | WS_HSCROLL | WS_VSCROLL; + if ( style & wxCB_SORT ) + msStyle |= CBS_SORT; + + return msStyle; +} + wxChoice::~wxChoice() { Free(); @@ -106,11 +233,35 @@ wxChoice::~wxChoice() int wxChoice::DoAppend(const wxString& item) { - int n = (int)SendMessage(GetHwnd(), CB_ADDSTRING, 0, (LONG)item.c_str()); + int n = (int)SendMessage(GetHwnd(), CB_ADDSTRING, 0, (LPARAM)item.c_str()); if ( n == CB_ERR ) { wxLogLastError(wxT("SendMessage(CB_ADDSTRING)")); } + else // ok + { + // we need to refresh our size in order to have enough space for the + // newly added items + UpdateVisibleHeight(); + } + + return n; +} + +int wxChoice::DoInsert(const wxString& item, int pos) +{ + wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list")); + wxCHECK_MSG((pos>=0) && (pos<=GetCount()), -1, wxT("invalid index")); + + int n = (int)SendMessage(GetHwnd(), CB_INSERTSTRING, pos, (LPARAM)item.c_str()); + if ( n == CB_ERR ) + { + wxLogLastError(wxT("SendMessage(CB_INSERTSTRING)")); + } + else // ok + { + UpdateVisibleHeight(); + } return n; } @@ -125,6 +276,8 @@ void wxChoice::Delete(int n) } SendMessage(GetHwnd(), CB_DELETESTRING, n, 0); + + UpdateVisibleHeight(); } void wxChoice::Clear() @@ -132,6 +285,8 @@ void wxChoice::Clear() Free(); SendMessage(GetHwnd(), CB_RESETCONTENT, 0, 0); + + UpdateVisibleHeight(); } void wxChoice::Free() @@ -191,26 +346,52 @@ int wxChoice::FindString(const wxString& s) const #endif // Watcom/!Watcom } -void wxChoice::SetString(int WXUNUSED(n), const wxString& WXUNUSED(s)) +void wxChoice::SetString(int n, const wxString& s) { - wxFAIL_MSG(wxT("not implemented")); + wxCHECK_RET( n >= 0 && n < GetCount(), + wxT("invalid item index in wxChoice::SetString") ); -#if 0 // should do this, but no Insert() so far - Delete(n); - Insert(n + 1, s); -#endif + // we have to delete and add back the string as there is no way to change a + // string in place + + // we need to preserve the client data + void *data; + if ( m_clientDataItemsType != wxClientData_None ) + { + data = DoGetItemClientData(n); + } + else // no client data + { + data = NULL; + } + + ::SendMessage(GetHwnd(), CB_DELETESTRING, n, 0); + ::SendMessage(GetHwnd(), CB_INSERTSTRING, n, (LPARAM)s.c_str() ); + + if ( data ) + { + DoSetItemClientData(n, data); + } + //else: it's already NULL by default } wxString wxChoice::GetString(int n) const { - size_t len = (size_t)::SendMessage(GetHwnd(), CB_GETLBTEXTLEN, n, 0); + int len = (int)::SendMessage(GetHwnd(), CB_GETLBTEXTLEN, n, 0); + wxString str; - if (len) { - if ( ::SendMessage(GetHwnd(), CB_GETLBTEXT, n, - (LPARAM)str.GetWriteBuf(len)) == CB_ERR ) { + if ( len != CB_ERR && len > 0 ) + { + if ( ::SendMessage + ( + GetHwnd(), + CB_GETLBTEXT, + n, + (LPARAM)(wxChar *)wxStringBuffer(str, len) + ) == CB_ERR ) + { wxLogLastError(wxT("SendMessage(CB_GETLBTEXT)")); } - str.UngetWriteBuf(); } return str; @@ -222,7 +403,8 @@ wxString wxChoice::GetString(int n) const void wxChoice::DoSetItemClientData( int n, void* clientData ) { - if ( SendMessage(GetHwnd(), CB_SETITEMDATA, n, (LPARAM)clientData) == CB_ERR ) + if ( ::SendMessage(GetHwnd(), CB_SETITEMDATA, + n, (LPARAM)clientData) == CB_ERR ) { wxLogLastError(wxT("CB_SETITEMDATA")); } @@ -256,6 +438,12 @@ wxClientData* wxChoice::DoGetItemClientObject( int n ) const // wxMSW specific helpers // ---------------------------------------------------------------------------- +void wxChoice::UpdateVisibleHeight() +{ + // be careful to not change the width here + DoSetSize(-1, -1, -1, GetSize().y, wxSIZE_USE_EXISTING); +} + void wxChoice::DoMoveWindow(int x, int y, int width, int height) { // here is why this is necessary: if the width is negative, the combobox @@ -274,28 +462,64 @@ void wxChoice::DoMoveWindow(int x, int y, int width, int height) wxControl::DoMoveWindow(x, y, width, height); } +void wxChoice::DoGetSize(int *w, int *h) const +{ + // this is weird: sometimes, the height returned by Windows is clearly the + // total height of the control including the drop down list -- but only + // sometimes, and normally it isn't... I have no idea about what to do with + // this + wxControl::DoGetSize(w, h); +} + void wxChoice::DoSetSize(int x, int y, - int width, int WXUNUSED(height), + int width, int height, int sizeFlags) { - // Ignore height parameter because height doesn't mean 'initially - // displayed' height, it refers to the drop-down menu as well. The - // wxWindows interpretation is different; also, getting the size returns - // the _displayed_ size (NOT the drop down menu size) so - // setting-getting-setting size would not work. - wxControl::DoSetSize(x, y, width, -1, sizeFlags); + int heightOrig = height; + + // the height which we must pass to Windows should be the total height of + // the control including the drop down list while the height given to us + // is, of course, just the height of the permanently visible part of it + if ( height != -1 ) + { + // don't make the drop down list too tall, arbitrarily limit it to 40 + // items max and also don't leave it empty + size_t nItems = GetCount(); + if ( !nItems ) + nItems = 9; + else if ( nItems > 39 ) + nItems = 39; + + // add space for the drop down list + const int hItem = SendMessage(GetHwnd(), CB_GETITEMHEIGHT, 0, 0); + height += hItem*(nItems + 1); + } + + wxControl::DoSetSize(x, y, width, height, sizeFlags); + + // if the height specified for the visible part of the control is + // different from the current one, we need to change it separately + // as it is not affected by normal WM_SETSIZE + if ( height != -1 ) + { + const int delta = heightOrig - GetSize().y; + if ( delta ) + { + int h = ::SendMessage(GetHwnd(), CB_GETITEMHEIGHT, (WPARAM)-1, 0); + SendMessage(GetHwnd(), CB_SETITEMHEIGHT, (WPARAM)-1, h + delta); + } + } } wxSize wxChoice::DoGetBestSize() const { // find the widest string - int wLine; int wChoice = 0; - int nItems = GetCount(); - for ( int i = 0; i < nItems; i++ ) + const size_t nItems = GetCount(); + for ( size_t i = 0; i < nItems; i++ ) { - wxString str(GetString(i)); - GetTextExtent(str, &wLine, NULL); + int wLine; + GetTextExtent(GetString(i), &wLine, NULL); if ( wLine > wChoice ) wChoice = wLine; } @@ -305,20 +529,13 @@ wxSize wxChoice::DoGetBestSize() const if ( wChoice == 0 ) wChoice = 100; - // the combobox should be larger than the widest string - int cx, cy; - wxGetCharSize(GetHWND(), &cx, &cy, &GetFont()); + // the combobox should be slightly larger than the widest string + wChoice += 5*GetCharWidth(); - wChoice += 5*cx; - - // Choice drop-down list depends on number of items (limited to 10) - size_t nStrings = nItems == 0 ? 10 : wxMin(10, nItems) + 1; - int hChoice = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)*nStrings; - - return wxSize(wChoice, hChoice); + return wxSize(wChoice, EDIT_HEIGHT_FROM_CHAR_HEIGHT(GetCharHeight())); } -long wxChoice::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) +WXLRESULT wxChoice::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) { if ( nMsg == WM_LBUTTONUP ) { @@ -363,35 +580,16 @@ bool wxChoice::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) } WXHBRUSH wxChoice::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor), -#if wxUSE_CTL3D - WXUINT message, - WXWPARAM wParam, - WXLPARAM lParam -#else WXUINT WXUNUSED(message), WXWPARAM WXUNUSED(wParam), WXLPARAM WXUNUSED(lParam) -#endif ) { -#if wxUSE_CTL3D - if ( m_useCtl3D ) - { - HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam); - return (WXHBRUSH) hbrush; - } -#endif // wxUSE_CTL3D - HDC hdc = (HDC)pDC; - if (GetParent()->GetTransparentBackground()) - SetBkMode(hdc, TRANSPARENT); - else - SetBkMode(hdc, OPAQUE); - wxColour colBack = GetBackgroundColour(); if (!IsEnabled()) - colBack = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE); + colBack = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE); ::SetBkColor(hdc, wxColourToRGB(colBack)); ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));