/////////////////////////////////////////////////////////////////////////////
-// Name: msw/combobox.cpp
+// Name: src/msw/combobox.cpp
// Purpose: wxComboBox class
// Author: Julian Smart
// Modified by:
// Created: 01/02/97
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart and Markus Holzem
+// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
-#pragma implementation "combobox.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
#if wxUSE_COMBOBOX
+#include "wx/combobox.h"
+
#ifndef WX_PRECOMP
-#include "wx/settings.h"
+ #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
+ #include "wx/settings.h"
+ #include "wx/log.h"
+ // for wxEVT_COMMAND_TEXT_ENTER
+ #include "wx/textctrl.h"
+ #include "wx/app.h"
+ #include "wx/brush.h"
#endif
-#include "wx/combobox.h"
-#include "wx/brush.h"
#include "wx/clipbrd.h"
#include "wx/msw/private.h"
#if wxUSE_TOOLTIPS
- #ifndef __GNUWIN32_OLD__
- #include <commctrl.h>
- #endif
#include "wx/tooltip.h"
#endif // wxUSE_TOOLTIPS
// 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
switch ( message )
{
- // forward some messages to the combobox
+ // forward some messages to the combobox to generate the appropriate
+ // wxEvents from them
case WM_KEYUP:
case WM_KEYDOWN:
case WM_CHAR:
+ case WM_SYSCHAR:
+ case WM_SYSKEYDOWN:
+ case WM_SYSKEYUP:
+ case WM_SETFOCUS:
+ case WM_KILLFOCUS:
{
wxComboBox *combo = wxDynamicCast(win, wxComboBox);
- wxCHECK_MSG( combo, 0, _T("should have combo as parent") );
-
- if ( combo->MSWProcessEditMsg(message, wParam, lParam) )
+ if ( !combo )
+ {
+ // we can get WM_KILLFOCUS while our parent is already half
+ // destroyed and hence doesn't look like a combobx any
+ // longer, check for it to avoid bogus assert failures
+ if ( !win->IsBeingDeleted() )
+ {
+ wxFAIL_MSG( _T("should have combo as parent") );
+ }
+ }
+ else if ( combo->MSWProcessEditMsg(message, wParam, lParam) )
+ {
+ // handled by parent
return 0;
+ }
}
break;
-#if 0
case WM_GETDLGCODE:
{
wxCHECK_MSG( win, 0, _T("should have a parent") );
- if ( win->GetWindowStyle() & wxPROCESS_ENTER )
+ if ( win->GetWindowStyle() & wxTE_PROCESS_ENTER )
{
// need to return a custom dlg code or we'll never get it
return DLGC_WANTMESSAGE;
}
}
break;
-#endif // 0
-
- // deal with tooltips here
-#if wxUSE_TOOLTIPS
- case WM_NOTIFY:
- {
- wxCHECK_MSG( win, 0, _T("should have a parent") );
- NMHDR* hdr = (NMHDR *)lParam;
- if ( (int)hdr->code == TTN_NEEDTEXT )
- {
- wxToolTip *tooltip = win->GetToolTip();
- if ( tooltip )
- {
- TOOLTIPTEXT *ttt = (TOOLTIPTEXT *)lParam;
- ttt->lpszText = (wxChar *)tooltip->GetTip().c_str();
- }
-
- // processed
- return 0;
- }
- }
+ case WM_CUT:
+ case WM_COPY:
+ case WM_PASTE:
+ if( win->HandleClipboardEvent( message ) )
+ return 0;
break;
-#endif // wxUSE_TOOLTIPS
}
return ::CallWindowProc(CASTWNDPROC gs_wndprocEdit, hWnd, message, wParam, lParam);
}
-WXHBRUSH wxComboBox::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
- WXUINT message,
- WXWPARAM wParam,
- WXLPARAM lParam)
-{
-#if wxUSE_CTL3D
- if ( m_useCtl3D )
- {
- HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
- return (WXHBRUSH) hbrush;
- }
-#endif // wxUSE_CTL3D
+// ----------------------------------------------------------------------------
+// wxComboBox callbacks
+// ----------------------------------------------------------------------------
- HDC hdc = (HDC)pDC;
- if (GetParent()->GetTransparentBackground())
- SetBkMode(hdc, TRANSPARENT);
- else
- SetBkMode(hdc, OPAQUE);
+WXLRESULT wxComboBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+{
+ // TODO: handle WM_CTLCOLOR messages from our EDIT control to be able to
+ // set its colour correctly (to be the same as our own one)
- wxColour colBack = GetBackgroundColour();
+ switch ( nMsg )
+ {
+ case WM_SIZE:
+ // wxStaticBox can generate this message, when modifying the control's style.
+ // This causes the content of the combobox to be selected, for some reason.
+ case WM_STYLECHANGED:
+ {
+ // combobox selection sometimes spontaneously changes when its
+ // size changes, restore it to the old value if necessary
+ long fromOld, toOld;
+ GetSelection(&fromOld, &toOld);
+ WXLRESULT result = wxChoice::MSWWindowProc(nMsg, wParam, lParam);
- if (!IsEnabled())
- colBack = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
+ long fromNew, toNew;
+ GetSelection(&fromNew, &toNew);
- ::SetBkColor(hdc, wxColourToRGB(colBack));
- ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
+ if ( fromOld != fromNew || toOld != toNew )
+ {
+ SetSelection(fromOld, toOld);
+ }
- wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBack, wxSOLID);
+ return result;
+ }
+ }
- return (WXHBRUSH)brush->GetResourceHandle();
+ return wxChoice::MSWWindowProc(nMsg, wParam, lParam);
}
-// ----------------------------------------------------------------------------
-// wxComboBox
-// ----------------------------------------------------------------------------
-
bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam)
{
switch ( msg )
{
case WM_CHAR:
- return HandleChar(wParam, lParam, TRUE /* isASCII */);
+ // for compatibility with wxTextCtrl, generate a special message
+ // when Enter is pressed
+ if ( wParam == VK_RETURN )
+ {
+ if (SendMessage(GetHwnd(), CB_GETDROPPEDSTATE, 0, 0))
+ return false;
+
+ wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
+
+ const int sel = GetSelection();
+ event.SetInt(sel);
+ event.SetString(GetValue());
+ InitCommandEventWithItems(event, sel);
+
+ 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;
+ }
+ }
+ // fall through
+ case WM_SYSCHAR:
+ return HandleChar(wParam, lParam, true /* isASCII */);
+
+ case WM_SYSKEYDOWN:
case WM_KEYDOWN:
return HandleKeyDown(wParam, lParam);
+ case WM_SYSKEYUP:
case WM_KEYUP:
return HandleKeyUp(wParam, lParam);
+
+ case WM_SETFOCUS:
+ return HandleSetFocus((WXHWND)wParam);
+
+ case WM_KILLFOCUS:
+ return HandleKillFocus((WXHWND)wParam);
}
- return FALSE;
+ return false;
}
-bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
+bool wxComboBox::MSWCommand(WXUINT param, WXWORD id)
{
+ int sel = -1;
+ wxString value;
+
switch ( param )
{
- case CBN_SELCHANGE:
- if (GetSelection() > -1)
+ case CBN_SELENDOK:
+#ifndef __SMARTPHONE__
+ // we need to reset this to prevent the selection from being undone
+ // by wxChoice, see wxChoice::MSWCommand() and comments there
+ m_lastAcceptedSelection = wxID_NONE;
+#endif
+
+ // set these variables so that they could be also fixed in
+ // CBN_EDITCHANGE below
+ sel = GetSelection();
+ value = GetStringSelection();
+
+ // this string is going to become the new combobox value soon but
+ // we need it to be done right now, otherwise the event handler
+ // could get a wrong value when it calls our GetValue()
+ ::SetWindowText(GetHwnd(), value);
+
{
wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, GetId());
- event.SetInt(GetSelection());
- event.SetEventObject(this);
- event.SetString(GetStringSelection());
+ event.SetInt(sel);
+ event.SetString(value);
+ InitCommandEventWithItems(event, sel);
+
ProcessCommand(event);
}
- break;
+
+ // fall through: for compability with wxGTK, also send the text
+ // update event when the selection changes (this also seems more
+ // logical as the text does change)
case CBN_EDITCHANGE:
{
wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
- event.SetString(GetValue());
- event.SetEventObject(this);
+
+ // if sel != -1, value was already initialized above
+ if ( sel == -1 )
+ {
+ value = wxGetWindowText(GetHwnd());
+ }
+
+ event.SetString(value);
+ InitCommandEventWithItems(event, sel);
+
ProcessCommand(event);
}
break;
+
+ default:
+ return wxChoice::MSWCommand(param, id);
}
- // there is no return value for the CBN_ notifications, so always return
- // FALSE from here to pass the message to DefWindowProc()
- return FALSE;
+ // skip wxChoice version as it would generate its own events for
+ // CBN_SELENDOK
+ return wxControl::MSWCommand(param, id);
}
WXHWND wxComboBox::GetEditHWND() const
return (WXHWND)hwndEdit;
}
+// ----------------------------------------------------------------------------
+// wxComboBox creation
+// ----------------------------------------------------------------------------
+
bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
const wxString& value,
const wxPoint& pos,
const wxValidator& validator,
const wxString& name)
{
- // first create wxWin object
- if ( !CreateControl(parent, id, pos, size, style, validator, name) )
- return FALSE;
+ // 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;
+
+ 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
+ );
+
+ // usually WS_TABSTOP is added by wxControl::MSWGetStyle() but as we're
+ // created hidden (see Create() above), it is not done for us but we still
+ // want to have this style
+ msStyle |= WS_TABSTOP;
+
+ // 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?
- // and now create the MSW control
- if ( !MSWCreateControl(_T("COMBOBOX"), msStyle) )
- return FALSE;
+ return msStyle;
+}
- SetSize(pos.x, pos.y, size.x, size.y);
+// ----------------------------------------------------------------------------
+// wxComboBox text control-like methods
+// ----------------------------------------------------------------------------
- // 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));
+wxString wxComboBox::GetValue() const
+{
+ return wxGetWindowText(m_hWnd);
+}
- for ( int i = 0; i < n; i++ )
- {
- Append(choices[i]);
- }
+void wxComboBox::SetValue(const wxString& value)
+{
+ if ( HasFlag(wxCB_READONLY) )
+ SetStringSelection(value);
+ else
+ SetWindowText(GetHwnd(), value.c_str());
+}
- if ( !value.IsEmpty() )
+// Clipboard operations
+void wxComboBox::Copy()
+{
+ SendMessage(GetHwnd(), WM_COPY, 0, 0L);
+}
+
+void wxComboBox::Cut()
+{
+ SendMessage(GetHwnd(), WM_CUT, 0, 0L);
+}
+
+void wxComboBox::Paste()
+{
+ SendMessage(GetHwnd(), WM_PASTE, 0, 0L);
+}
+
+void wxComboBox::Undo()
+{
+ if (CanUndo())
{
- SetValue(value);
+ HWND hEditWnd = (HWND) GetEditHWND();
+ if ( hEditWnd )
+ ::SendMessage(hEditWnd, EM_UNDO, 0, 0);
}
+}
- // 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);
}
+}
- return TRUE;
+void wxComboBox::SelectAll()
+{
+ SetSelection(0, GetLastPosition());
}
-// TODO: update and clear all this horrible mess (VZ)
+bool wxComboBox::CanUndo() const
+{
+ if (!IsEditable())
+ return false;
-void wxComboBox::SetValue(const wxString& value)
+ HWND hEditWnd = (HWND) GetEditHWND();
+ if ( hEditWnd )
+ return ::SendMessage(hEditWnd, EM_CANUNDO, 0, 0) != 0;
+ else
+ return false;
+}
+
+bool wxComboBox::CanRedo() const
{
- // If newlines are denoted by just 10, must stick 13 in front.
- int singletons = 0;
- int len = value.Length();
- int i;
- for (i = 0; i < len; i ++)
- {
- if ((i > 0) && (value[i] == 10) && (value[i-1] != 13))
- singletons ++;
- }
- if (singletons > 0)
- {
- wxChar *tmp = new wxChar[len + singletons + 1];
- int j = 0;
- for (i = 0; i < len; i ++)
- {
- if ((i > 0) && (value[i] == 10) && (value[i-1] != 13))
- {
- tmp[j] = 13;
- j ++;
- }
- tmp[j] = value[i];
- j ++;
- }
- tmp[j] = 0;
- SetWindowText(GetHwnd(), tmp);
- delete[] tmp;
- }
- else
- SetWindowText(GetHwnd(), value);
+ if (!IsEditable())
+ return false;
+
+ HWND hEditWnd = (HWND) GetEditHWND();
+ if ( hEditWnd )
+ return ::SendMessage(hEditWnd, EM_CANUNDO, 0, 0) != 0;
+ else
+ return false;
}
-// Clipboard operations
-void wxComboBox::Copy()
+bool wxComboBox::HasSelection() const
{
- HWND hWnd = GetHwnd();
- SendMessage(hWnd, WM_COPY, 0, 0L);
+ long from, to;
+ GetSelection(&from, &to);
+ return from != to;
}
-void wxComboBox::Cut()
+bool wxComboBox::CanCopy() const
{
- HWND hWnd = GetHwnd();
- SendMessage(hWnd, WM_CUT, 0, 0L);
+ // Can copy if there's a selection
+ return HasSelection();
}
-void wxComboBox::Paste()
+bool wxComboBox::CanCut() const
+{
+ return IsEditable() && CanCopy();
+}
+
+bool wxComboBox::CanPaste() const
{
- HWND hWnd = GetHwnd();
- SendMessage(hWnd, WM_PASTE, 0, 0L);
+ 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
+{
+ return !HasFlag(wxCB_READONLY);
}
void wxComboBox::SetEditable(bool editable)
{
- // Can't implement in MSW?
-// HWND hWnd = GetHwnd();
-// SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L);
+ HWND hWnd = (HWND)GetEditHWND();
+ if ( !::SendMessage(hWnd, EM_SETREADONLY, !editable, 0) )
+ {
+ wxLogLastError(_T("SendMessage(EM_SETREADONLY)"));
+ }
}
void wxComboBox::SetInsertionPoint(long pos)
{
-/*
- HWND hWnd = GetHwnd();
-#ifdef __WIN32__
- SendMessage(hWnd, EM_SETSEL, pos, pos);
- SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
-#else
- SendMessage(hWnd, EM_SETSEL, 0, MAKELPARAM(pos, pos));
-#endif
- char *nothing = "";
- SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing);
-*/
+ if ( GetWindowStyle() & wxCB_READONLY )
+ return;
+
+ HWND hWnd = GetHwnd();
+ ::SendMessage(hWnd, CB_SETEDITSEL, 0, MAKELPARAM(pos, pos));
+ HWND hEditWnd = (HWND) GetEditHWND();
+ if ( hEditWnd )
+ {
+ // 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) wxEmptyString);
+ }
}
void wxComboBox::SetInsertionPointEnd()
{
-/*
- long pos = GetLastPosition();
- SetInsertionPoint(pos);
-*/
+ // setting insertion point doesn't make sense for read only comboboxes
+ if ( !(GetWindowStyle() & wxCB_READONLY) )
+ {
+ wxTextPos pos = GetLastPosition();
+ SetInsertionPoint(pos);
+ }
}
long wxComboBox::GetInsertionPoint() const
{
-/*
- DWORD Pos=(DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L);
- return Pos&0xFFFF;
-*/
- return 0;
+ // CB_GETEDITSEL returns the index of the first character of the selection in
+ // its low-order word
+ DWORD pos= (DWORD)::SendMessage(GetHwnd(), CB_GETEDITSEL, 0, 0L);
+ return LOWORD(pos);
}
-long wxComboBox::GetLastPosition() const
+wxTextPos wxComboBox::GetLastPosition() const
{
-/*
- HWND hWnd = GetHwnd();
+ HWND hEditWnd = (HWND) GetEditHWND();
- // Will always return a number > 0 (according to docs)
- int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L);
-
- // This gets the char index for the _beginning_ of the last line
- int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L);
-
- // Get number of characters in the last line. We'll add this to the character
+ // Get number of characters in the last (only) line. We'll add this to the character
// index for the last line, 1st position.
- int lineLength = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0L);
+ wxTextPos lineLength = (wxTextPos)SendMessage(hEditWnd, EM_LINELENGTH, (WPARAM) 0, (LPARAM)0L);
- return (long)(charIndex + lineLength);
-*/
- return 0;
+ return lineLength;
}
void wxComboBox::Replace(long from, long to, const wxString& value)
{
#if wxUSE_CLIPBOARD
- HWND hWnd = GetHwnd();
- long fromChar = from;
- long toChar = to;
-
- // Set selection and remove it
-#ifdef __WIN32__
- SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar);
-#else
- SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar));
-#endif
- SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
+ Remove(from, to);
// Now replace with 'value', by pasting.
wxSetClipboardData(wxDF_TEXT, (wxObject *)(const wxChar *)value, 0, 0);
// Paste into edit control
- SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L);
+ SendMessage(GetHwnd(), WM_PASTE, (WPARAM)0, (LPARAM)0L);
+#else
+ wxUnusedVar(from);
+ wxUnusedVar(to);
+ wxUnusedVar(value);
#endif
}
void wxComboBox::Remove(long from, long to)
{
- HWND hWnd = GetHwnd();
- long fromChar = from;
- long toChar = to;
-
- // Cut all selected text
-#ifdef __WIN32__
- SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar);
-#else
- SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar));
-#endif
- SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
+ // Set selection and remove it
+ SetSelection(from, to);
+ SendMessage(GetHwnd(), WM_CUT, (WPARAM)0, (LPARAM)0);
}
void wxComboBox::SetSelection(long from, long to)
{
- HWND hWnd = GetHwnd();
- long fromChar = from;
- long toChar = to;
- // if from and to are both -1, it means
- // (in wxWindows) that all text should be selected.
- // This translates into Windows convention
- if ((from == -1) && (to == -1))
+ // if from and to are both -1, it means (in wxWidgets) that all text should
+ // be selected, translate this into Windows convention
+ if ( (from == -1) && (to == -1) )
{
- fromChar = 0;
- toChar = -1;
+ from = 0;
}
-#ifdef __WIN32__
- SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)fromChar, (LPARAM)toChar);
-// SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
-#else
- // WPARAM is 0: selection is scrolled into view
- SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar));
-#endif
+ if ( SendMessage(GetHwnd(), CB_SETEDITSEL,
+ 0, (LPARAM)MAKELONG(from, to)) == CB_ERR )
+ {
+ wxLogDebug(_T("CB_SETEDITSEL failed"));
+ }
}
-void wxComboBox::DoMoveWindow(int x, int y, int width, int height)
+void wxComboBox::GetSelection(long* from, long* to) const
{
- // here is why this is necessary: if the width is negative, the combobox
- // window proc makes the window of the size width*height instead of
- // interpreting height in the usual manner (meaning the height of the drop
- // down list - usually the height specified in the call to MoveWindow()
- // will not change the height of combo box per se)
- //
- // this behaviour is not documented anywhere, but this is just how it is
- // here (NT 4.4) and, anyhow, the check shouldn't hurt - however without
- // the check, constraints/sizers using combos may break the height
- // constraint will have not at all the same value as expected
- if ( width < 0 )
- return;
+ DWORD dwStart, dwEnd;
+ if ( ::SendMessage(GetHwnd(), CB_GETEDITSEL,
+ (WPARAM)&dwStart, (LPARAM)&dwEnd) == CB_ERR )
+ {
+ *from =
+ *to = 0;
+ }
+ else
+ {
+ *from = dwStart;
+ *to = dwEnd;
+ }
+}
- int cx, cy;
- wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
+// ----------------------------------------------------------------------------
+// standard event handling
+// ----------------------------------------------------------------------------
- // what should the height of the drop down list be? we choose 10 items by
- // default and also 10 items max (if we always use n, the list will never
- // have vertical scrollbar)
- int n = GetCount();
- if ( !n || (n > 10) )
- n = 10;
+void wxComboBox::OnCut(wxCommandEvent& WXUNUSED(event))
+{
+ Cut();
+}
- height = (n + 1)* EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
+void wxComboBox::OnCopy(wxCommandEvent& WXUNUSED(event))
+{
+ Copy();
+}
- wxControl::DoMoveWindow(x, y, width, height);
+void wxComboBox::OnPaste(wxCommandEvent& WXUNUSED(event))
+{
+ Paste();
}
-wxSize wxComboBox::DoGetBestSize() const
+void wxComboBox::OnUndo(wxCommandEvent& WXUNUSED(event))
{
- // the choice calculates the horz size correctly, but not the vertical
- // component: correct it
- wxSize size = wxChoice::DoGetBestSize();
+ Undo();
+}
- int cx, cy;
- wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
- size.y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
+void wxComboBox::OnRedo(wxCommandEvent& WXUNUSED(event))
+{
+ Redo();
+}
- return size;
+void wxComboBox::OnDelete(wxCommandEvent& WXUNUSED(event))
+{
+ long from, to;
+ GetSelection(& from, & to);
+ if (from != -1 && to != -1)
+ Remove(from, to);
}
-#endif
- // wxUSE_COMBOBOX
+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