| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/os2/combobox.cpp |
| 3 | // Purpose: wxComboBox class |
| 4 | // Author: David Webster |
| 5 | // Modified by: |
| 6 | // Created: 10/13/99 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) David Webster |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // For compilers that support precompilation, includes "wx.h". |
| 13 | #include "wx/wxprec.h" |
| 14 | |
| 15 | #if wxUSE_COMBOBOX |
| 16 | |
| 17 | #include "wx/combobox.h" |
| 18 | |
| 19 | #ifndef WX_PRECOMP |
| 20 | #include "wx/settings.h" |
| 21 | #endif |
| 22 | |
| 23 | #include "wx/clipbrd.h" |
| 24 | #include "wx/os2/private.h" |
| 25 | |
| 26 | #define OWNER_DRAWN_LISTBOX_EXTRA_SPACE (1) |
| 27 | |
| 28 | MRESULT EXPENTRY wxComboEditWndProc( HWND hWnd |
| 29 | ,UINT uMessage |
| 30 | ,MPARAM wParam |
| 31 | ,MPARAM lParam |
| 32 | ); |
| 33 | // |
| 34 | // The pointer to standard wnd proc |
| 35 | // |
| 36 | static WXFARPROC gfnWndprocEdit = (WXFARPROC)NULL; |
| 37 | |
| 38 | bool wxComboBox::OS2Command( WXUINT uParam, WXWORD WXUNUSED(wId) ) |
| 39 | { |
| 40 | long lSel = GetSelection(); |
| 41 | wxString sValue; |
| 42 | |
| 43 | switch (uParam) |
| 44 | { |
| 45 | case CBN_LBSELECT: |
| 46 | if (lSel > -1) |
| 47 | { |
| 48 | wxCommandEvent vEvent( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() ); |
| 49 | |
| 50 | vEvent.SetInt(lSel); |
| 51 | vEvent.SetEventObject(this); |
| 52 | vEvent.SetString(GetStringSelection()); |
| 53 | |
| 54 | ProcessCommand(vEvent); |
| 55 | } |
| 56 | break; |
| 57 | |
| 58 | case CBN_EFCHANGE: |
| 59 | { |
| 60 | wxCommandEvent vEvent( wxEVT_COMMAND_TEXT_UPDATED, GetId() ); |
| 61 | |
| 62 | if (lSel == -1L) |
| 63 | sValue = GetValue(); |
| 64 | else |
| 65 | sValue = GetStringSelection(); |
| 66 | vEvent.SetString(sValue); |
| 67 | vEvent.SetEventObject(this); |
| 68 | ProcessCommand(vEvent); |
| 69 | } |
| 70 | break; |
| 71 | } |
| 72 | // |
| 73 | // There is no return value for the CBN_ notifications, so always return |
| 74 | // false from here to pass the message to DefWindowProc() |
| 75 | // |
| 76 | return false; |
| 77 | } // end of wxComboBox::OS2Command |
| 78 | |
| 79 | bool wxComboBox::Create( |
| 80 | wxWindow* pParent |
| 81 | , wxWindowID vId |
| 82 | , const wxString& rsValue |
| 83 | , const wxPoint& rPos |
| 84 | , const wxSize& rSize |
| 85 | , const wxArrayString& asChoices |
| 86 | , long lStyle |
| 87 | , const wxValidator& rValidator |
| 88 | , const wxString& rsName |
| 89 | ) |
| 90 | { |
| 91 | wxCArrayString chs(asChoices); |
| 92 | |
| 93 | return Create(pParent, vId, rsValue, rPos, rSize, chs.GetCount(), |
| 94 | chs.GetStrings(), lStyle, rValidator, rsName); |
| 95 | } |
| 96 | |
| 97 | bool wxComboBox::Create( |
| 98 | wxWindow* pParent |
| 99 | , wxWindowID vId |
| 100 | , const wxString& rsValue |
| 101 | , const wxPoint& rPos |
| 102 | , const wxSize& rSize |
| 103 | , int n |
| 104 | , const wxString asChoices[] |
| 105 | , long lStyle |
| 106 | , const wxValidator& rValidator |
| 107 | , const wxString& rsName |
| 108 | ) |
| 109 | { |
| 110 | m_isShown = false; |
| 111 | |
| 112 | if (!CreateControl( pParent |
| 113 | ,vId |
| 114 | ,rPos |
| 115 | ,rSize |
| 116 | ,lStyle |
| 117 | ,rValidator |
| 118 | ,rsName |
| 119 | )) |
| 120 | return false; |
| 121 | |
| 122 | // |
| 123 | // Get the right style |
| 124 | // |
| 125 | long lSstyle = 0L; |
| 126 | |
| 127 | lSstyle = WS_TABSTOP | |
| 128 | WS_VISIBLE; |
| 129 | |
| 130 | // clipping siblings does not yet work |
| 131 | // if (lStyle & wxCLIP_SIBLINGS ) |
| 132 | // lSstyle |= WS_CLIPSIBLINGS; |
| 133 | if (lStyle & wxCB_READONLY) |
| 134 | lSstyle |= CBS_DROPDOWNLIST; |
| 135 | else if (lStyle & wxCB_SIMPLE) |
| 136 | lSstyle |= CBS_SIMPLE; // A list (shown always) and edit control |
| 137 | else |
| 138 | lSstyle |= CBS_DROPDOWN; |
| 139 | |
| 140 | |
| 141 | if (!OS2CreateControl( wxT("COMBOBOX") |
| 142 | ,lSstyle |
| 143 | )) |
| 144 | return false; |
| 145 | |
| 146 | // |
| 147 | // A choice/combobox normally has a white background (or other, depending |
| 148 | // on global settings) rather than inheriting the parent's background colour. |
| 149 | // |
| 150 | SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); |
| 151 | |
| 152 | for (int i = 0; i < n; i++) |
| 153 | { |
| 154 | Append(asChoices[i]); |
| 155 | } |
| 156 | |
| 157 | SetSize( rPos.x |
| 158 | ,rPos.y |
| 159 | ,rSize.x |
| 160 | ,rSize.y |
| 161 | ); |
| 162 | |
| 163 | // Set height to use with sizers i.e. without the dropdown listbox |
| 164 | wxFont vFont = GetFont(); |
| 165 | int nEditHeight; |
| 166 | wxGetCharSize( GetHWND(), NULL, &nEditHeight, &vFont ); |
| 167 | nEditHeight = EDIT_HEIGHT_FROM_CHAR_HEIGHT(nEditHeight); |
| 168 | SetInitialSize(wxSize(-1,nEditHeight+4)); // +2x2 for the border |
| 169 | |
| 170 | if (!rsValue.empty()) |
| 171 | { |
| 172 | SetValue(rsValue); |
| 173 | } |
| 174 | gfnWndprocEdit = (WXFARPROC)::WinSubclassWindow( (HWND)GetHwnd() |
| 175 | ,(PFNWP)wxComboEditWndProc |
| 176 | ); |
| 177 | ::WinSetWindowULong(GetHwnd(), QWL_USER, (ULONG)this); |
| 178 | Show(true); |
| 179 | return true; |
| 180 | } // end of wxComboBox::Create |
| 181 | |
| 182 | wxString wxComboBox::GetValue() const |
| 183 | { |
| 184 | return HasFlag(wxCB_READONLY) ? GetStringSelection() |
| 185 | : wxTextEntry::GetValue(); |
| 186 | } |
| 187 | |
| 188 | void wxComboBox::SetValue(const wxString& value) |
| 189 | { |
| 190 | if ( HasFlag(wxCB_READONLY) ) |
| 191 | SetStringSelection(value); |
| 192 | else |
| 193 | wxTextEntry::SetValue(value); |
| 194 | } |
| 195 | |
| 196 | void wxComboBox::Clear() |
| 197 | { |
| 198 | wxChoice::Clear(); |
| 199 | if ( !HasFlag(wxCB_READONLY) ) |
| 200 | wxTextEntry::Clear(); |
| 201 | } |
| 202 | |
| 203 | bool wxComboBox::IsEditable() const |
| 204 | { |
| 205 | return !HasFlag(wxCB_READONLY) && wxTextEntry::IsEditable(); |
| 206 | } |
| 207 | |
| 208 | bool wxComboBox::ProcessEditMsg( |
| 209 | WXUINT uMsg |
| 210 | , WXWPARAM wParam |
| 211 | , WXLPARAM lParam) |
| 212 | { |
| 213 | SHORT vFlag; |
| 214 | switch (uMsg) |
| 215 | { |
| 216 | case WM_CHAR: |
| 217 | vFlag = SHORT1FROMMP(wParam); |
| 218 | switch(vFlag) |
| 219 | { |
| 220 | case KC_CHAR: |
| 221 | return (HandleChar( wParam |
| 222 | ,lParam |
| 223 | ,true /* isASCII */ |
| 224 | )); |
| 225 | |
| 226 | case KC_PREVDOWN: |
| 227 | return (HandleKeyDown( wParam |
| 228 | ,lParam |
| 229 | )); |
| 230 | |
| 231 | case KC_KEYUP: |
| 232 | return (HandleKeyUp( wParam |
| 233 | ,lParam |
| 234 | )); |
| 235 | } |
| 236 | break; |
| 237 | |
| 238 | case WM_SETFOCUS: |
| 239 | if (SHORT1FROMMP((MPARAM)lParam) == TRUE) |
| 240 | return(HandleSetFocus((WXHWND)(HWND)wParam)); |
| 241 | else |
| 242 | return(HandleKillFocus((WXHWND)(HWND)wParam)); |
| 243 | } |
| 244 | return false; |
| 245 | } // end of wxComboBox::ProcessEditMsg |
| 246 | |
| 247 | MRESULT EXPENTRY wxComboEditWndProc( |
| 248 | HWND hWnd |
| 249 | , UINT uMessage |
| 250 | , MPARAM wParam |
| 251 | , MPARAM lParam |
| 252 | ) |
| 253 | { |
| 254 | switch (uMessage) |
| 255 | { |
| 256 | // |
| 257 | // Forward some messages to the combobox |
| 258 | // |
| 259 | case WM_SETFOCUS: |
| 260 | case WM_CHAR: |
| 261 | { |
| 262 | wxComboBox* pCombo = (wxComboBox *)::WinQueryWindowULong( hWnd |
| 263 | ,QWL_USER |
| 264 | ); |
| 265 | |
| 266 | if (pCombo->ProcessEditMsg( uMessage |
| 267 | ,wParam |
| 268 | ,lParam |
| 269 | )) |
| 270 | return ((MRESULT)0); |
| 271 | } |
| 272 | break; |
| 273 | |
| 274 | // |
| 275 | // TODO: Deal with tooltips here |
| 276 | // |
| 277 | } |
| 278 | return (gfnWndprocEdit(hWnd, (ULONG)uMessage, (MPARAM)wParam, (MPARAM)lParam)); |
| 279 | } // end of wxComboEditWndProc |
| 280 | |
| 281 | #endif |
| 282 | // wxUSE_COMBOBOX |