1 /////////////////////////////////////////////////////////////////////////////
3 // Purpose: wxComboBox class
4 // Author: Julian Smart
8 // Copyright: (c) Julian Smart and Markus Holzem
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
13 #pragma implementation "combobox.h"
16 // For compilers that support precompilation, includes "wx.h".
17 #include "wx/wxprec.h"
29 #include "wx/combobox.h"
30 #include "wx/clipbrd.h"
31 #include "wx/msw/private.h"
33 #if !USE_SHARED_LIBRARY
34 IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
37 bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
39 if (param == CBN_SELCHANGE)
41 wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, m_windowId);
42 event.SetInt(GetSelection());
43 event.SetEventObject(this);
44 event.SetString(GetStringSelection());
45 ProcessCommand(event);
49 else if (param == CBN_EDITCHANGE)
51 wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId);
52 event.SetString(GetValue());
53 event.SetEventObject(this);
54 ProcessCommand(event);
62 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
63 const wxString& value,
66 int n, const wxString choices[],
68 const wxValidator& validator,
72 SetValidator(validator);
73 if (parent) parent->AddChild(this);
74 SetBackgroundColour(parent->GetBackgroundColour()) ;
75 SetForegroundColour(parent->GetForegroundColour()) ;
77 m_windowStyle = style;
80 m_windowId = (int)NewControlId();
89 long msStyle = WS_CHILD | WS_TABSTOP | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL |
92 if (m_windowStyle & wxCB_READONLY)
93 msStyle |= CBS_DROPDOWNLIST;
94 else if (m_windowStyle & wxCB_SIMPLE)
95 msStyle |= CBS_SIMPLE; // A list (shown always) and edit control
97 msStyle |= CBS_DROPDOWN;
99 if (m_windowStyle & wxCB_SORT)
103 WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ;
105 // Even with extended styles, need to combine with WS_BORDER
106 // for them to look right.
107 if ( want3D || wxStyleHasBorder(m_windowStyle) )
108 msStyle |= WS_BORDER;
110 m_hWnd = (WXHWND)::CreateWindowEx(exStyle, _T("COMBOBOX"), NULL,
112 0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
113 wxGetInstance(), NULL);
115 wxCHECK_MSG( m_hWnd, FALSE, _T("Failed to create combobox") );
121 Ctl3dSubclassCtl(wx_combo);
127 // Subclass again for purposes of dialog editing mode
130 SetFont(parent->GetFont());
132 for (i = 0; i < n; i++)
139 SetSize(x, y, width, height);
140 if ( !value.IsEmpty() )
148 void wxComboBox::SetValue(const wxString& value)
150 // If newlines are denoted by just 10, must stick 13 in front.
152 int len = value.Length();
154 for (i = 0; i < len; i ++)
156 if ((i > 0) && (value[i] == 10) && (value[i-1] != 13))
161 wxChar *tmp = new wxChar[len + singletons + 1];
163 for (i = 0; i < len; i ++)
165 if ((i > 0) && (value[i] == 10) && (value[i-1] != 13))
174 SetWindowText(GetHwnd(), tmp);
178 SetWindowText(GetHwnd(), value);
181 // Clipboard operations
182 void wxComboBox::Copy()
184 HWND hWnd = GetHwnd();
185 SendMessage(hWnd, WM_COPY, 0, 0L);
188 void wxComboBox::Cut()
190 HWND hWnd = GetHwnd();
191 SendMessage(hWnd, WM_CUT, 0, 0L);
194 void wxComboBox::Paste()
196 HWND hWnd = GetHwnd();
197 SendMessage(hWnd, WM_PASTE, 0, 0L);
200 void wxComboBox::SetEditable(bool editable)
202 // Can't implement in MSW?
203 // HWND hWnd = GetHwnd();
204 // SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L);
207 void wxComboBox::SetInsertionPoint(long pos)
210 HWND hWnd = GetHwnd();
212 SendMessage(hWnd, EM_SETSEL, pos, pos);
213 SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
215 SendMessage(hWnd, EM_SETSEL, 0, MAKELPARAM(pos, pos));
218 SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing);
222 void wxComboBox::SetInsertionPointEnd()
225 long pos = GetLastPosition();
226 SetInsertionPoint(pos);
230 long wxComboBox::GetInsertionPoint() const
233 DWORD Pos=(DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L);
239 long wxComboBox::GetLastPosition() const
242 HWND hWnd = GetHwnd();
244 // Will always return a number > 0 (according to docs)
245 int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L);
247 // This gets the char index for the _beginning_ of the last line
248 int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L);
250 // Get number of characters in the last line. We'll add this to the character
251 // index for the last line, 1st position.
252 int lineLength = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0L);
254 return (long)(charIndex + lineLength);
259 void wxComboBox::Replace(long from, long to, const wxString& value)
262 HWND hWnd = GetHwnd();
263 long fromChar = from;
266 // Set selection and remove it
268 SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar);
270 SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar));
272 SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
274 // Now replace with 'value', by pasting.
275 wxSetClipboardData(wxDF_TEXT, (wxObject *)(const wxChar *)value, 0, 0);
277 // Paste into edit control
278 SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L);
282 void wxComboBox::Remove(long from, long to)
284 HWND hWnd = GetHwnd();
285 long fromChar = from;
288 // Cut all selected text
290 SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar);
292 SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar));
294 SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
297 void wxComboBox::SetSelection(long from, long to)
299 HWND hWnd = GetHwnd();
300 long fromChar = from;
302 // if from and to are both -1, it means
303 // (in wxWindows) that all text should be selected.
304 // This translates into Windows convention
305 if ((from == -1) && (to == -1))
312 SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)fromChar, (LPARAM)toChar);
313 // SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
315 // WPARAM is 0: selection is scrolled into view
316 SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar));
320 void wxComboBox::DoSetSize(int x, int y,
321 int width, int height,
324 wxControl::DoSetSize(x, y, width, height, sizeFlags);