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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, wxTopLevelWindow) | |
32 | ||
33 | BEGIN_EVENT_TABLE(wxDialog, wxDialogBase) | |
34 | EVT_BUTTON(wxID_OK, wxDialog::OnOK) | |
35 | EVT_BUTTON(wxID_APPLY, wxDialog::OnApply) | |
36 | EVT_BUTTON(wxID_CANCEL, wxDialog::OnCancel) | |
37 | ||
38 | EVT_CHAR_HOOK(wxDialog::OnCharHook) | |
39 | ||
40 | EVT_SYS_COLOUR_CHANGED(wxDialog::OnSysColourChanged) | |
41 | ||
42 | EVT_CLOSE(wxDialog::OnCloseWindow) | |
43 | END_EVENT_TABLE() | |
44 | ||
45 | #endif | |
46 | ||
47 | wxDialog::wxDialog() | |
48 | { | |
49 | m_isShown = FALSE; | |
50 | SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)); | |
51 | } | |
52 | ||
53 | bool wxDialog::Create(wxWindow *parent, wxWindowID id, | |
54 | const wxString& title, | |
55 | const wxPoint& pos, | |
56 | const wxSize& size, | |
57 | long style, | |
58 | const wxString& name) | |
59 | { | |
60 | ||
61 | SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)); | |
62 | ||
63 | ||
64 | if ( !wxTopLevelWindow::Create(parent, id, title, pos, size, style, name) ) | |
65 | return FALSE; | |
66 | ||
67 | MacCreateRealWindow( title , pos , size , MacRemoveBordersFromStyle(style) , name ) ; | |
68 | ||
69 | m_macWindowBackgroundTheme = kThemeBrushDialogBackgroundActive ; | |
70 | return TRUE; | |
71 | } | |
72 | ||
73 | void wxDialog::SetModal(bool flag) | |
74 | { | |
75 | if ( flag ) | |
76 | { | |
77 | m_windowStyle |= wxDIALOG_MODAL; | |
78 | ||
79 | wxModelessWindows.DeleteObject(this); | |
80 | } | |
81 | else | |
82 | { | |
83 | m_windowStyle &= ~wxDIALOG_MODAL; | |
84 | ||
85 | wxModelessWindows.Append(this); | |
86 | } | |
87 | } | |
88 | ||
89 | wxDialog::~wxDialog() | |
90 | { | |
91 | m_isBeingDeleted = TRUE ; | |
92 | Show(FALSE); | |
93 | } | |
94 | ||
95 | // By default, pressing escape cancels the dialog , on mac command-stop does the same thing | |
96 | void wxDialog::OnCharHook(wxKeyEvent& event) | |
97 | { | |
98 | if ( | |
99 | ( event.m_keyCode == WXK_ESCAPE || | |
100 | ( event.m_keyCode == '.' && event.MetaDown() ) ) | |
101 | && FindWindow(wxID_CANCEL) ) | |
102 | { | |
103 | // Behaviour changed in 2.0: we'll send a Cancel message | |
104 | // to the dialog instead of Close. | |
105 | wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL); | |
106 | cancelEvent.SetEventObject( this ); | |
107 | GetEventHandler()->ProcessEvent(cancelEvent); | |
108 | ||
109 | return; | |
110 | } | |
111 | // We didn't process this event. | |
112 | event.Skip(); | |
113 | } | |
114 | ||
115 | bool wxDialog::IsModal() const | |
116 | { | |
117 | return (GetWindowStyleFlag() & wxDIALOG_MODAL) != 0; | |
118 | } | |
119 | ||
120 | ||
121 | bool wxDialog::IsModalShowing() const | |
122 | { | |
123 | return wxModalDialogs.Find((wxDialog *)this) != NULL; // const_cast | |
124 | } | |
125 | ||
126 | extern bool s_macIsInModalLoop ; | |
127 | ||
128 | bool wxDialog::Show(bool show) | |
129 | { | |
130 | if ( !wxDialogBase::Show(show) ) | |
131 | { | |
132 | // nothing to do | |
133 | return FALSE; | |
134 | } | |
135 | ||
136 | if ( show ) | |
137 | { | |
138 | // usually will result in TransferDataToWindow() being called | |
139 | InitDialog(); | |
140 | } | |
141 | ||
142 | if ( IsModal() ) | |
143 | { | |
144 | if ( show ) | |
145 | { | |
146 | DoShowModal(); | |
147 | } | |
148 | else // end of modal dialog | |
149 | { | |
150 | // this will cause IsModalShowing() return FALSE and our local | |
151 | // message loop will terminate | |
152 | wxModalDialogs.DeleteObject(this); | |
153 | } | |
154 | } | |
155 | ||
156 | return TRUE; | |
157 | } | |
158 | ||
159 | void wxDialog::DoShowModal() | |
160 | { | |
161 | wxCHECK_RET( !IsModalShowing(), _T("DoShowModal() called twice") ); | |
162 | ||
163 | wxModalDialogs.Append(this); | |
164 | ||
165 | wxWindow *parent = GetParent(); | |
166 | ||
167 | // remember where the focus was | |
168 | wxWindow *winFocus = FindFocus(); | |
169 | if ( !winFocus ) | |
170 | { | |
171 | winFocus = parent; | |
172 | } | |
173 | if ( !winFocus ) | |
174 | { | |
175 | winFocus = wxTheApp->GetTopWindow(); | |
176 | } | |
177 | // TODO : test whether parent gets disabled | |
178 | ||
179 | bool formerModal = s_macIsInModalLoop ; | |
180 | s_macIsInModalLoop = true ; | |
181 | ||
182 | while ( IsModalShowing() ) | |
183 | { | |
184 | while ( !wxTheApp->Pending() && wxTheApp->ProcessIdle() ) | |
185 | { | |
186 | } | |
187 | wxTheApp->MacDoOneEvent() ; | |
188 | } | |
189 | ||
190 | s_macIsInModalLoop = formerModal ; | |
191 | ||
192 | // TODO probably reenable the parent window if any | |
193 | ||
194 | // and restore focus | |
195 | if ( winFocus ) | |
196 | { | |
197 | winFocus->SetFocus(); | |
198 | } | |
199 | } | |
200 | ||
201 | ||
202 | // Replacement for Show(TRUE) for modal dialogs - returns return code | |
203 | int wxDialog::ShowModal() | |
204 | { | |
205 | m_windowStyle |= wxDIALOG_MODAL; | |
206 | Show(TRUE); | |
207 | return GetReturnCode(); | |
208 | } | |
209 | ||
210 | // NB: this function (surprizingly) may be called for both modal and modeless | |
211 | // dialogs and should work for both of them | |
212 | void wxDialog::EndModal(int retCode) | |
213 | { | |
214 | SetReturnCode(retCode); | |
215 | Show(FALSE); | |
216 | } | |
217 | ||
218 | // Standard buttons | |
219 | void wxDialog::OnOK(wxCommandEvent& event) | |
220 | { | |
221 | if ( Validate() && TransferDataFromWindow() ) | |
222 | { | |
223 | EndModal(wxID_OK); | |
224 | } | |
225 | } | |
226 | ||
227 | void wxDialog::OnApply(wxCommandEvent& event) | |
228 | { | |
229 | if (Validate()) | |
230 | TransferDataFromWindow(); | |
231 | // TODO probably need to disable the Apply button until things change again | |
232 | } | |
233 | ||
234 | void wxDialog::OnCancel(wxCommandEvent& event) | |
235 | { | |
236 | EndModal(wxID_CANCEL); | |
237 | } | |
238 | ||
239 | void wxDialog::OnCloseWindow(wxCloseEvent& event) | |
240 | { | |
241 | // We'll send a Cancel message by default, | |
242 | // which may close the dialog. | |
243 | // Check for looping if the Cancel event handler calls Close(). | |
244 | ||
245 | // Note that if a cancel button and handler aren't present in the dialog, | |
246 | // nothing will happen when you close the dialog via the window manager, or | |
247 | // via Close(). | |
248 | // We wouldn't want to destroy the dialog by default, since the dialog may have been | |
249 | // created on the stack. | |
250 | // However, this does mean that calling dialog->Close() won't delete the dialog | |
251 | // unless the handler for wxID_CANCEL does so. So use Destroy() if you want to be | |
252 | // sure to destroy the dialog. | |
253 | // The default OnCancel (above) simply ends a modal dialog, and hides a modeless dialog. | |
254 | ||
255 | static wxList closing; | |
256 | ||
257 | if ( closing.Member(this) ) | |
258 | return; | |
259 | ||
260 | closing.Append(this); | |
261 | ||
262 | wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL); | |
263 | cancelEvent.SetEventObject( this ); | |
264 | GetEventHandler()->ProcessEvent(cancelEvent); // This may close the dialog | |
265 | ||
266 | closing.DeleteObject(this); | |
267 | } | |
268 | ||
269 | void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& event) | |
270 | { | |
271 | SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)); | |
272 | Refresh(); | |
273 | } | |
274 |