// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "combobox.h"
#endif
#include "wx/textctrl.h"
#endif
+#include "wx/app.h"
#include "wx/combobox.h"
#include "wx/brush.h"
#include "wx/clipbrd.h"
// wxWin macros
// ----------------------------------------------------------------------------
+#if wxUSE_EXTENDED_RTTI
+WX_DEFINE_FLAGS( wxComboBoxStyle )
+
+wxBEGIN_FLAGS( wxComboBoxStyle )
+ // 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(wxCB_SIMPLE)
+ wxFLAGS_MEMBER(wxCB_SORT)
+ wxFLAGS_MEMBER(wxCB_READONLY)
+ wxFLAGS_MEMBER(wxCB_DROPDOWN)
+
+wxEND_FLAGS( wxComboBoxStyle )
+
+IMPLEMENT_DYNAMIC_CLASS_XTI(wxComboBox, wxControl,"wx/combobox.h")
+
+wxBEGIN_PROPERTIES_TABLE(wxComboBox)
+ wxEVENT_PROPERTY( Select , wxEVT_COMMAND_COMBOBOX_SELECTED , wxCommandEvent )
+ wxEVENT_PROPERTY( TextEnter , wxEVT_COMMAND_TEXT_ENTER , wxCommandEvent )
+
+ // TODO DELEGATES
+ 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( Value ,wxString, SetValue, GetValue, EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+ wxPROPERTY( Selection ,int, SetSelection, GetSelection, EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+ wxPROPERTY_FLAGS( WindowStyle , wxComboBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
+wxEND_PROPERTIES_TABLE()
+
+wxBEGIN_HANDLERS_TABLE(wxComboBox)
+wxEND_HANDLERS_TABLE()
+
+wxCONSTRUCTOR_5( wxComboBox , wxWindow* , Parent , wxWindowID , Id , wxString , Value , wxPoint , Position , wxSize , Size )
+
+#else
+
IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
+#endif
+
+BEGIN_EVENT_TABLE(wxComboBox, wxControl)
+ EVT_MENU(wxID_CUT, wxComboBox::OnCut)
+ EVT_MENU(wxID_COPY, wxComboBox::OnCopy)
+ EVT_MENU(wxID_PASTE, wxComboBox::OnPaste)
+ EVT_MENU(wxID_UNDO, wxComboBox::OnUndo)
+ EVT_MENU(wxID_REDO, wxComboBox::OnRedo)
+ EVT_MENU(wxID_CLEAR, wxComboBox::OnDelete)
+ EVT_MENU(wxID_SELECTALL, wxComboBox::OnSelectAll)
+
+ EVT_UPDATE_UI(wxID_CUT, wxComboBox::OnUpdateCut)
+ EVT_UPDATE_UI(wxID_COPY, wxComboBox::OnUpdateCopy)
+ EVT_UPDATE_UI(wxID_PASTE, wxComboBox::OnUpdatePaste)
+ EVT_UPDATE_UI(wxID_UNDO, wxComboBox::OnUpdateUndo)
+ EVT_UPDATE_UI(wxID_REDO, wxComboBox::OnUpdateRedo)
+ EVT_UPDATE_UI(wxID_CLEAR, wxComboBox::OnUpdateDelete)
+ EVT_UPDATE_UI(wxID_SELECTALL, wxComboBox::OnUpdateSelectAll)
+END_EVENT_TABLE()
+
// ----------------------------------------------------------------------------
// function prototypes
// ----------------------------------------------------------------------------
// ---------------------------------------------------------------------------
// the pointer to standard radio button wnd proc
-static WXFARPROC gs_wndprocEdit = (WXFARPROC)NULL;
+static WNDPROC gs_wndprocEdit = (WNDPROC)NULL;
// ============================================================================
// implementation
return ::CallWindowProc(CASTWNDPROC gs_wndprocEdit, hWnd, message, wParam, lParam);
}
-WXHBRUSH wxComboBox::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor),
- WXUINT WXUNUSED(message),
- WXWPARAM WXUNUSED(wParam),
- WXLPARAM WXUNUSED(lParam)
- )
-{
- HDC hdc = (HDC)pDC;
- if (GetParent()->GetTransparentBackground())
- SetBkMode(hdc, TRANSPARENT);
- else
- SetBkMode(hdc, OPAQUE);
-
- wxColour colBack = GetBackgroundColour();
-
- if (!IsEnabled())
- colBack = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
-
- ::SetBkColor(hdc, wxColourToRGB(colBack));
- ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
+// ----------------------------------------------------------------------------
+// wxComboBox callbacks
+// ----------------------------------------------------------------------------
- wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBack, wxSOLID);
+WXLRESULT wxComboBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+{
+ // handle WM_CTLCOLOR messages from our EDIT control to be able to set its
+ // colour correctly (to be the same as our own one)
+ switch ( nMsg )
+ {
+ case CB_SETCURSEL:
+ // Selection was set with SetSelection. Update the value too.
+ if ((int)wParam > GetCount())
+ m_value = wxEmptyString;
+ else
+ m_value = GetString(wParam);
+ m_selectionOld = -1;
+ break;
+ }
- return (WXHBRUSH)brush->GetResourceHandle();
+ return wxChoice::MSWWindowProc(nMsg, wParam, lParam);
}
-// ----------------------------------------------------------------------------
-// wxComboBox
-// ----------------------------------------------------------------------------
-
bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam)
{
switch ( msg )
InitCommandEvent(event);
event.SetString(GetValue());
event.SetInt(GetSelection());
- ProcessCommand(event);
+ if ( ProcessCommand(event) )
+ {
+ // don't let the event through to the native control
+ // because it doesn't need it and may generate an annoying
+ // beep if it gets it
+ return true;
+ }
}
- return HandleChar(wParam, lParam, TRUE /* isASCII */);
+ return HandleChar(wParam, lParam, true /* isASCII */);
case WM_KEYDOWN:
return HandleKeyDown(wParam, lParam);
return HandleKillFocus((WXHWND)wParam);
}
- return FALSE;
+ return false;
}
bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
{
case CBN_SELCHANGE:
sel = GetSelection();
- if ( sel > -1 )
+
+ // somehow we get 2 CBN_SELCHANGE events with the same index when
+ // the user selects an item in the combobox -- ignore duplicates
+ if ( sel > -1 && sel != m_selectionOld )
{
- value = GetString(sel);
+ m_selectionOld = sel;
+
+ // GetValue() would still return the old value from here but
+ // according to the docs we should return the new value if the
+ // user calls it in his event handler, so update internal
+ // m_value
+ m_value = GetString(sel);
wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, GetId());
event.SetInt(sel);
event.SetEventObject(this);
- event.SetString(value);
+ event.SetString(m_value);
ProcessCommand(event);
}
- else
+ else // no valid selection
{
+ m_selectionOld = sel;
+
+ // hence no EVT_TEXT neither
break;
}
// want the new one)
if ( sel == -1 )
{
- value = GetValue();
+ m_value = wxGetWindowText(GetHwnd());
+ m_selectionOld = -1;
}
else // we're synthesizing text updated event from sel change
{
- // we need to do this because the user code expects
- // wxComboBox::GetValue() to return the new value from
- // "text updated" handler but it hadn't been updated yet
- SetValue(value);
+ // We need to retrieve the current selection because the
+ // user may have changed it in the previous handler (for
+ // CBN_SELCHANGE above).
+ sel = GetSelection();
+ if ( sel > -1 )
+ {
+ m_value = GetString(sel);
+ }
}
- event.SetString(value);
+ event.SetString(m_value);
event.SetEventObject(this);
ProcessCommand(event);
}
}
// there is no return value for the CBN_ notifications, so always return
- // FALSE from here to pass the message to DefWindowProc()
- return FALSE;
+ // false from here to pass the message to DefWindowProc()
+ return false;
}
WXHWND wxComboBox::GetEditHWND() const
return (WXHWND)hwndEdit;
}
+// ----------------------------------------------------------------------------
+// wxComboBox creation
+// ----------------------------------------------------------------------------
+
bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
const wxString& value,
const wxPoint& pos,
// pretend that wxComboBox is hidden while it is positioned and resized and
// show it only right before leaving this method because otherwise there is
// some noticeable flicker while the control rearranges itself
- m_isShown = FALSE;
+ m_isShown = false;
+
+ if ( !CreateAndInit(parent, id, pos, size, n, choices, style,
+ validator, name) )
+ return false;
+
+ // we shouldn't call SetValue() for an empty string because this would
+ // (correctly) result in an assert with a read only combobox and is useless
+ // for the other ones anyhow
+ if ( !value.empty() )
+ SetValue(value);
+
+ // a (not read only) combobox is, in fact, 2 controls: the combobox itself
+ // and an edit control inside it and if we want to catch events from this
+ // edit control, we must subclass it as well
+ if ( !(style & wxCB_READONLY) )
+ {
+ gs_wndprocEdit = wxSetWindowProc((HWND)GetEditHWND(),
+ wxComboEditWndProc);
+ }
+
+ // and finally, show the control
+ Show(true);
+
+ return true;
+}
+
+bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
+ const wxString& value,
+ const wxPoint& pos,
+ const wxSize& size,
+ const wxArrayString& choices,
+ long style,
+ const wxValidator& validator,
+ const wxString& name)
+{
+ wxCArrayString chs(choices);
+ return Create(parent, id, value, pos, size, chs.GetCount(),
+ chs.GetStrings(), style, validator, name);
+}
+
+WXDWORD wxComboBox::MSWGetStyle(long style, WXDWORD *exstyle) const
+{
+ // we never have an external border
+ WXDWORD msStyle = wxChoice::MSWGetStyle
+ (
+ (style & ~wxBORDER_MASK) | wxBORDER_NONE, exstyle
+ );
- // first create wxWin object
- if ( !CreateControl(parent, id, pos, size, style, validator, name) )
- return FALSE;
+ // remove the style always added by wxChoice
+ msStyle &= ~CBS_DROPDOWNLIST;
- // get the right style
- long msStyle = WS_TABSTOP | WS_VSCROLL | WS_HSCROLL |
- CBS_AUTOHSCROLL | CBS_NOINTEGRALHEIGHT /* | WS_CLIPSIBLINGS */;
if ( style & wxCB_READONLY )
msStyle |= CBS_DROPDOWNLIST;
+#ifndef __WXWINCE__
else if ( style & wxCB_SIMPLE )
msStyle |= CBS_SIMPLE; // A list (shown always) and edit control
+#endif
else
msStyle |= CBS_DROPDOWN;
- if ( style & wxCB_SORT )
- msStyle |= CBS_SORT;
+ // there is no reason to not always use CBS_AUTOHSCROLL, so do use it
+ msStyle |= CBS_AUTOHSCROLL;
+
+ // NB: we used to also add CBS_NOINTEGRALHEIGHT here but why?
+
+ return msStyle;
+}
+
+// ----------------------------------------------------------------------------
+// wxComboBox text control-like methods
+// ----------------------------------------------------------------------------
- if ( style & wxCLIP_SIBLINGS )
- msStyle |= WS_CLIPSIBLINGS;
+void wxComboBox::SetValue(const wxString& value)
+{
+ if ( HasFlag(wxCB_READONLY) )
+ SetStringSelection(value);
+ else
+ SetWindowText(GetHwnd(), value.c_str());
+ m_value = value;
+ m_selectionOld = GetSelection();
+}
- // and now create the MSW control
- if ( !MSWCreateControl(_T("COMBOBOX"), msStyle) )
- return FALSE;
+// Clipboard operations
+void wxComboBox::Copy()
+{
+ SendMessage(GetHwnd(), WM_COPY, 0, 0L);
+}
- // A choice/combobox normally has a white background (or other, depending
- // on global settings) rather than inheriting the parent's background colour.
- SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
+void wxComboBox::Cut()
+{
+ SendMessage(GetHwnd(), WM_CUT, 0, 0L);
+}
- for ( int i = 0; i < n; i++ )
- {
- Append(choices[i]);
- }
+void wxComboBox::Paste()
+{
+ SendMessage(GetHwnd(), WM_PASTE, 0, 0L);
+}
- if ( !value.IsEmpty() )
+void wxComboBox::Undo()
+{
+ if (CanUndo())
{
- SetValue(value);
+ HWND hEditWnd = (HWND) GetEditHWND() ;
+ if ( hEditWnd )
+ ::SendMessage(hEditWnd, EM_UNDO, 0, 0);
}
+}
- // do this after appending the values to the combobox so that autosizing
- // works correctly
- SetSize(pos.x, pos.y, size.x, size.y);
-
- // a (not read only) combobox is, in fact, 2 controls: the combobox itself
- // and an edit control inside it and if we want to catch events from this
- // edit control, we must subclass it as well
- if ( !(style & wxCB_READONLY) )
+void wxComboBox::Redo()
+{
+ if (CanUndo())
{
- gs_wndprocEdit = (WXFARPROC)::SetWindowLong
- (
- (HWND)GetEditHWND(),
- GWL_WNDPROC,
- (LPARAM)wxComboEditWndProc
- );
+ // Same as Undo, since Undo undoes the undo, i.e. a redo.
+ HWND hEditWnd = (HWND) GetEditHWND() ;
+ if ( hEditWnd )
+ ::SendMessage(hEditWnd, EM_UNDO, 0, 0);
}
+}
- // and finally, show the control
- Show(TRUE);
+void wxComboBox::SelectAll()
+{
+ SetSelection(0, GetLastPosition());
+}
- return TRUE;
+bool wxComboBox::CanUndo() const
+{
+ HWND hEditWnd = (HWND) GetEditHWND() ;
+ if ( hEditWnd )
+ return ::SendMessage(hEditWnd, EM_CANUNDO, 0, 0) != 0;
+ else
+ return false;
}
-void wxComboBox::SetValue(const wxString& value)
+bool wxComboBox::CanRedo() const
{
- if ( HasFlag(wxCB_READONLY) )
- SetStringSelection(value);
+ HWND hEditWnd = (HWND) GetEditHWND() ;
+ if ( hEditWnd )
+ return ::SendMessage(hEditWnd, EM_CANUNDO, 0, 0) != 0;
else
- SetWindowText(GetHwnd(), value.c_str());
+ return false;
}
-// Clipboard operations
-void wxComboBox::Copy()
+bool wxComboBox::HasSelection() const
{
- SendMessage(GetHwnd(), WM_COPY, 0, 0L);
+ long from, to;
+ GetSelection(&from, &to);
+ return from != to;
}
-void wxComboBox::Cut()
+bool wxComboBox::CanCopy() const
{
- SendMessage(GetHwnd(), WM_CUT, 0, 0L);
+ // Can copy if there's a selection
+ return HasSelection();
}
-void wxComboBox::Paste()
+bool wxComboBox::CanCut() const
+{
+ return CanCopy() && IsEditable();
+}
+
+bool wxComboBox::CanPaste() const
+{
+ if ( !IsEditable() )
+ return false;
+
+ // Standard edit control: check for straight text on clipboard
+ if ( !::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) )
+ return false;
+
+ bool isTextAvailable = ::IsClipboardFormatAvailable(CF_TEXT) != 0;
+ ::CloseClipboard();
+
+ return isTextAvailable;
+}
+
+bool wxComboBox::IsEditable() const
{
- SendMessage(GetHwnd(), WM_PASTE, 0, 0L);
+ return !HasFlag(wxCB_READONLY);
}
void wxComboBox::SetEditable(bool WXUNUSED(editable))
// Scroll insertion point into view
SendMessage(hEditWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
// Why is this necessary? (Copied from wxTextCtrl::SetInsertionPoint)
- SendMessage(hEditWnd, EM_REPLACESEL, 0, (LPARAM)_T(""));
+ SendMessage(hEditWnd, EM_REPLACESEL, 0, (LPARAM) wxEmptyString);
}
#endif // __WIN32__
}
long fromChar = from;
long toChar = to;
// if from and to are both -1, it means
- // (in wxWindows) that all text should be selected.
+ // (in wxWidgets) that all text should be selected.
// This translates into Windows convention
if ((from == -1) && (to == -1))
{
toChar = -1;
}
- if (
-#ifdef __WIN32__
- SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar))
-#else // Win16
- SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)fromChar, (LPARAM)toChar)
-#endif
- == CB_ERR )
+ if ( SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar)) == CB_ERR )
{
wxLogDebug(_T("CB_SETEDITSEL failed"));
}
}
-#endif
- // wxUSE_COMBOBOX
+void wxComboBox::GetSelection(long* from, long* to) const
+{
+ DWORD dwStart, dwEnd;
+ ::SendMessage(GetHwnd(), CB_GETEDITSEL, (WPARAM)&dwStart, (LPARAM)&dwEnd);
+
+ *from = dwStart;
+ *to = dwEnd;
+}
+
+int wxComboBox::GetSelection() const
+{
+ return wxChoice::GetSelection();
+}
+
+// ----------------------------------------------------------------------------
+// standard event handling
+// ----------------------------------------------------------------------------
+
+void wxComboBox::OnCut(wxCommandEvent& WXUNUSED(event))
+{
+ Cut();
+}
+
+void wxComboBox::OnCopy(wxCommandEvent& WXUNUSED(event))
+{
+ Copy();
+}
+
+void wxComboBox::OnPaste(wxCommandEvent& WXUNUSED(event))
+{
+ Paste();
+}
+
+void wxComboBox::OnUndo(wxCommandEvent& WXUNUSED(event))
+{
+ Undo();
+}
+
+void wxComboBox::OnRedo(wxCommandEvent& WXUNUSED(event))
+{
+ Redo();
+}
+
+void wxComboBox::OnDelete(wxCommandEvent& WXUNUSED(event))
+{
+ long from, to;
+ GetSelection(& from, & to);
+ if (from != -1 && to != -1)
+ Remove(from, to);
+}
+
+void wxComboBox::OnSelectAll(wxCommandEvent& WXUNUSED(event))
+{
+ SetSelection(-1, -1);
+}
+
+void wxComboBox::OnUpdateCut(wxUpdateUIEvent& event)
+{
+ event.Enable( CanCut() );
+}
+
+void wxComboBox::OnUpdateCopy(wxUpdateUIEvent& event)
+{
+ event.Enable( CanCopy() );
+}
+
+void wxComboBox::OnUpdatePaste(wxUpdateUIEvent& event)
+{
+ event.Enable( CanPaste() );
+}
+
+void wxComboBox::OnUpdateUndo(wxUpdateUIEvent& event)
+{
+ event.Enable( CanUndo() );
+}
+
+void wxComboBox::OnUpdateRedo(wxUpdateUIEvent& event)
+{
+ event.Enable( CanRedo() );
+}
+
+void wxComboBox::OnUpdateDelete(wxUpdateUIEvent& event)
+{
+ event.Enable(HasSelection() && IsEditable()) ;
+}
+
+void wxComboBox::OnUpdateSelectAll(wxUpdateUIEvent& event)
+{
+ event.Enable(GetLastPosition() > 0);
+}
+
+#endif // wxUSE_COMBOBOX
projects / wxWidgets.git / blobdiff