| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: dialog.cpp |
| 3 | // Purpose: wxDialog class |
| 4 | // Author: AUTHOR |
| 5 | // Modified by: |
| 6 | // Created: ??/??/98 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) AUTHOR |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | #ifdef __GNUG__ |
| 13 | #pragma implementation "dialog.h" |
| 14 | #endif |
| 15 | |
| 16 | #include "wx/dialog.h" |
| 17 | #include "wx/utils.h" |
| 18 | #include "wx/frame.h" |
| 19 | #include "wx/app.h" |
| 20 | #include "wx/settings.h" |
| 21 | |
| 22 | #include <wx/mac/uma.h> |
| 23 | |
| 24 | // Lists to keep track of windows, so we can disable/enable them |
| 25 | // for modal dialogs |
| 26 | wxList wxModalDialogs; |
| 27 | wxList wxModelessWindows; // Frames and modeless dialogs |
| 28 | extern wxList wxPendingDelete; |
| 29 | |
| 30 | #if !USE_SHARED_LIBRARY |
| 31 | IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxPanel) |
| 32 | |
| 33 | BEGIN_EVENT_TABLE(wxDialog, wxPanel) |
| 34 | EVT_SIZE(wxDialog::OnSize) |
| 35 | EVT_BUTTON(wxID_OK, wxDialog::OnOK) |
| 36 | EVT_BUTTON(wxID_APPLY, wxDialog::OnApply) |
| 37 | EVT_BUTTON(wxID_CANCEL, wxDialog::OnCancel) |
| 38 | EVT_CHAR_HOOK(wxDialog::OnCharHook) |
| 39 | EVT_SYS_COLOUR_CHANGED(wxDialog::OnSysColourChanged) |
| 40 | EVT_CLOSE(wxDialog::OnCloseWindow) |
| 41 | END_EVENT_TABLE() |
| 42 | |
| 43 | #endif |
| 44 | |
| 45 | wxDialog::wxDialog() |
| 46 | { |
| 47 | m_isShown = FALSE; |
| 48 | SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE)); |
| 49 | } |
| 50 | |
| 51 | bool wxDialog::Create(wxWindow *parent, wxWindowID id, |
| 52 | const wxString& title, |
| 53 | const wxPoint& pos, |
| 54 | const wxSize& size, |
| 55 | long style, |
| 56 | const wxString& name) |
| 57 | { |
| 58 | |
| 59 | SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE)); |
| 60 | |
| 61 | if (!parent) |
| 62 | wxTopLevelWindows.Append(this); |
| 63 | |
| 64 | if (parent) parent->AddChild(this); |
| 65 | |
| 66 | if ( id == -1 ) |
| 67 | m_windowId = (int)NewControlId(); |
| 68 | else |
| 69 | m_windowId = id; |
| 70 | |
| 71 | MacCreateRealWindow( title , pos , size , MacRemoveBordersFromStyle(style) , name ) ; |
| 72 | |
| 73 | m_macWindowData->m_macWindowBackgroundTheme = kThemeBrushDialogBackgroundActive ; |
| 74 | return TRUE; |
| 75 | } |
| 76 | |
| 77 | void wxDialog::SetModal(bool flag) |
| 78 | { |
| 79 | if ( flag ) |
| 80 | { |
| 81 | m_windowStyle |= wxDIALOG_MODAL; |
| 82 | |
| 83 | wxModelessWindows.DeleteObject(this); |
| 84 | } |
| 85 | else |
| 86 | { |
| 87 | m_windowStyle &= ~wxDIALOG_MODAL; |
| 88 | |
| 89 | wxModelessWindows.Append(this); |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | wxDialog::~wxDialog() |
| 94 | { |
| 95 | m_isBeingDeleted = TRUE ; |
| 96 | wxTopLevelWindows.DeleteObject(this); |
| 97 | |
| 98 | Show(FALSE); |
| 99 | |
| 100 | if ( !IsModal() ) |
| 101 | wxModelessWindows.DeleteObject(this); |
| 102 | |
| 103 | // If this is the last top-level window, exit. |
| 104 | if (wxTheApp && (wxTopLevelWindows.Number() == 0)) |
| 105 | { |
| 106 | wxTheApp->SetTopWindow(NULL); |
| 107 | |
| 108 | if (wxTheApp->GetExitOnFrameDelete()) |
| 109 | { |
| 110 | wxTheApp->ExitMainLoop() ; |
| 111 | } |
| 112 | } |
| 113 | } |
| 114 | |
| 115 | // By default, pressing escape cancels the dialog |
| 116 | void wxDialog::OnCharHook(wxKeyEvent& event) |
| 117 | { |
| 118 | if (event.m_keyCode == WXK_ESCAPE) |
| 119 | { |
| 120 | // Behaviour changed in 2.0: we'll send a Cancel message |
| 121 | // to the dialog instead of Close. |
| 122 | wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL); |
| 123 | cancelEvent.SetEventObject( this ); |
| 124 | GetEventHandler()->ProcessEvent(cancelEvent); |
| 125 | |
| 126 | return; |
| 127 | } |
| 128 | // We didn't process this event. |
| 129 | event.Skip(); |
| 130 | } |
| 131 | |
| 132 | void wxDialog::Iconize(bool WXUNUSED(iconize)) |
| 133 | { |
| 134 | // mac dialogs cannot be iconized |
| 135 | } |
| 136 | |
| 137 | bool wxDialog::IsIconized() const |
| 138 | { |
| 139 | // mac dialogs cannot be iconized |
| 140 | return FALSE; |
| 141 | } |
| 142 | |
| 143 | void wxDialog::DoSetClientSize(int width, int height) |
| 144 | { |
| 145 | wxWindow::DoSetClientSize( width , height ) ; |
| 146 | } |
| 147 | |
| 148 | void wxDialog::DoGetPosition(int *x, int *y) const |
| 149 | { |
| 150 | wxWindow::DoGetPosition( x , y ) ; |
| 151 | } |
| 152 | |
| 153 | bool wxDialog::IsModal() const |
| 154 | { |
| 155 | return (GetWindowStyleFlag() & wxDIALOG_MODAL) != 0; |
| 156 | } |
| 157 | |
| 158 | |
| 159 | bool wxDialog::IsModalShowing() const |
| 160 | { |
| 161 | return wxModalDialogs.Find((wxDialog *)this) != NULL; // const_cast |
| 162 | } |
| 163 | |
| 164 | |
| 165 | extern bool s_macIsInModalLoop ; |
| 166 | |
| 167 | bool wxDialog::Show(bool show) |
| 168 | { |
| 169 | if ( !wxDialogBase::Show(show) ) |
| 170 | { |
| 171 | // nothing to do |
| 172 | return FALSE; |
| 173 | } |
| 174 | |
| 175 | if ( show ) |
| 176 | { |
| 177 | // usually will result in TransferDataToWindow() being called |
| 178 | InitDialog(); |
| 179 | } |
| 180 | |
| 181 | if ( IsModal() ) |
| 182 | { |
| 183 | if ( show ) |
| 184 | { |
| 185 | DoShowModal(); |
| 186 | } |
| 187 | else // end of modal dialog |
| 188 | { |
| 189 | // this will cause IsModalShowing() return FALSE and our local |
| 190 | // message loop will terminate |
| 191 | wxModalDialogs.DeleteObject(this); |
| 192 | } |
| 193 | } |
| 194 | |
| 195 | return TRUE; |
| 196 | } |
| 197 | |
| 198 | void wxDialog::DoShowModal() |
| 199 | { |
| 200 | wxCHECK_RET( !IsModalShowing(), _T("DoShowModal() called twice") ); |
| 201 | |
| 202 | wxModalDialogs.Append(this); |
| 203 | |
| 204 | wxWindow *parent = GetParent(); |
| 205 | |
| 206 | // remember where the focus was |
| 207 | wxWindow *winFocus = FindFocus(); |
| 208 | if ( !winFocus ) |
| 209 | { |
| 210 | winFocus = parent; |
| 211 | } |
| 212 | if ( !winFocus ) |
| 213 | { |
| 214 | winFocus = wxTheApp->GetTopWindow(); |
| 215 | } |
| 216 | // TODO : test whether parent gets disabled |
| 217 | |
| 218 | s_macIsInModalLoop = true ; |
| 219 | |
| 220 | while ( IsModalShowing() ) |
| 221 | { |
| 222 | while ( !wxTheApp->Pending() && wxTheApp->ProcessIdle() ) |
| 223 | { |
| 224 | } |
| 225 | wxTheApp->MacDoOneEvent() ; |
| 226 | } |
| 227 | |
| 228 | s_macIsInModalLoop = false ; |
| 229 | |
| 230 | // TODO probably reenable the parent window if any |
| 231 | |
| 232 | // and restore focus |
| 233 | if ( winFocus ) |
| 234 | { |
| 235 | winFocus->SetFocus(); |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | |
| 240 | // Replacement for Show(TRUE) for modal dialogs - returns return code |
| 241 | int wxDialog::ShowModal() |
| 242 | { |
| 243 | m_windowStyle |= wxDIALOG_MODAL; |
| 244 | Show(TRUE); |
| 245 | return GetReturnCode(); |
| 246 | } |
| 247 | |
| 248 | // NB: this function (surprizingly) may be called for both modal and modeless |
| 249 | // dialogs and should work for both of them |
| 250 | void wxDialog::EndModal(int retCode) |
| 251 | { |
| 252 | SetReturnCode(retCode); |
| 253 | Show(FALSE); |
| 254 | } |
| 255 | |
| 256 | // Standard buttons |
| 257 | void wxDialog::OnOK(wxCommandEvent& event) |
| 258 | { |
| 259 | if ( Validate() && TransferDataFromWindow() ) |
| 260 | { |
| 261 | EndModal(wxID_OK); |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | void wxDialog::OnApply(wxCommandEvent& event) |
| 266 | { |
| 267 | if (Validate()) |
| 268 | TransferDataFromWindow(); |
| 269 | // TODO probably need to disable the Apply button until things change again |
| 270 | } |
| 271 | |
| 272 | void wxDialog::OnCancel(wxCommandEvent& event) |
| 273 | { |
| 274 | EndModal(wxID_CANCEL); |
| 275 | } |
| 276 | |
| 277 | void wxDialog::OnCloseWindow(wxCloseEvent& event) |
| 278 | { |
| 279 | // We'll send a Cancel message by default, |
| 280 | // which may close the dialog. |
| 281 | // Check for looping if the Cancel event handler calls Close(). |
| 282 | |
| 283 | // Note that if a cancel button and handler aren't present in the dialog, |
| 284 | // nothing will happen when you close the dialog via the window manager, or |
| 285 | // via Close(). |
| 286 | // We wouldn't want to destroy the dialog by default, since the dialog may have been |
| 287 | // created on the stack. |
| 288 | // However, this does mean that calling dialog->Close() won't delete the dialog |
| 289 | // unless the handler for wxID_CANCEL does so. So use Destroy() if you want to be |
| 290 | // sure to destroy the dialog. |
| 291 | // The default OnCancel (above) simply ends a modal dialog, and hides a modeless dialog. |
| 292 | |
| 293 | static wxList closing; |
| 294 | |
| 295 | if ( closing.Member(this) ) |
| 296 | return; |
| 297 | |
| 298 | closing.Append(this); |
| 299 | |
| 300 | wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL); |
| 301 | cancelEvent.SetEventObject( this ); |
| 302 | GetEventHandler()->ProcessEvent(cancelEvent); // This may close the dialog |
| 303 | |
| 304 | closing.DeleteObject(this); |
| 305 | } |
| 306 | |
| 307 | // Destroy the window (delayed, if a managed window) |
| 308 | bool wxDialog::Destroy() |
| 309 | { |
| 310 | wxCHECK_MSG( !wxPendingDelete.Member(this), FALSE, |
| 311 | _T("wxDialog destroyed twice") ); |
| 312 | |
| 313 | wxPendingDelete.Append(this); |
| 314 | return TRUE; |
| 315 | } |
| 316 | |
| 317 | void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& event) |
| 318 | { |
| 319 | SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE)); |
| 320 | Refresh(); |
| 321 | } |
| 322 | |