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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: dialog.cpp | |
3 | // Purpose: wxDialog class | |
4 | // Author: Stefan Csomor | |
5 | // Modified by: | |
6 | // Created: 1998-01-01 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Stefan Csomor | |
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 | void wxDialog::Init() | |
48 | { | |
49 | m_isModalStyle = false; | |
50 | } | |
51 | ||
52 | bool wxDialog::Create(wxWindow *parent, wxWindowID id, | |
53 | const wxString& title, | |
54 | const wxPoint& pos, | |
55 | const wxSize& size, | |
56 | long style, | |
57 | const wxString& name) | |
58 | { | |
59 | SetExtraStyle(GetExtraStyle() | wxTOPLEVEL_EX_DIALOG); | |
60 | ||
61 | // All dialogs should really have this style | |
62 | style |= wxTAB_TRAVERSAL; | |
63 | ||
64 | if ( !wxTopLevelWindow::Create(parent, id, title, pos, size, style & ~(wxYES|wxOK|wxNO|wxCANCEL) , name) ) | |
65 | return FALSE; | |
66 | ||
67 | return TRUE; | |
68 | } | |
69 | ||
70 | void wxDialog::SetModal(bool flag) | |
71 | { | |
72 | if ( flag ) | |
73 | { | |
74 | m_isModalStyle = true; | |
75 | ||
76 | wxModelessWindows.DeleteObject(this); | |
77 | #if TARGET_CARBON | |
78 | SetWindowModality( (WindowRef) MacGetWindowRef() , kWindowModalityAppModal , NULL ) ; | |
79 | #endif | |
80 | } | |
81 | else | |
82 | { | |
83 | m_isModalStyle = false; | |
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 (( event.m_keyCode == WXK_ESCAPE || | |
99 | ( event.m_keyCode == '.' && event.MetaDown() ) ) | |
100 | && FindWindow(wxID_CANCEL) ) | |
101 | { | |
102 | // Behaviour changed in 2.0: we'll send a Cancel message | |
103 | // to the dialog instead of Close. | |
104 | wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL); | |
105 | cancelEvent.SetEventObject( this ); | |
106 | GetEventHandler()->ProcessEvent(cancelEvent); | |
107 | ||
108 | return; | |
109 | } | |
110 | // We didn't process this event. | |
111 | event.Skip(); | |
112 | } | |
113 | ||
114 | bool wxDialog::IsModal() const | |
115 | { | |
116 | return m_isModalStyle; | |
117 | } | |
118 | ||
119 | ||
120 | bool wxDialog::IsModalShowing() const | |
121 | { | |
122 | return wxModalDialogs.Find((wxDialog *)this) != NULL; // const_cast | |
123 | } | |
124 | ||
125 | bool wxDialog::Show(bool show) | |
126 | { | |
127 | if ( !wxDialogBase::Show(show) ) | |
128 | { | |
129 | // nothing to do | |
130 | return FALSE; | |
131 | } | |
132 | ||
133 | if ( show ) | |
134 | { | |
135 | // usually will result in TransferDataToWindow() being called | |
136 | InitDialog(); | |
137 | } | |
138 | ||
139 | if ( IsModal() ) | |
140 | { | |
141 | if ( show ) | |
142 | { | |
143 | DoShowModal(); | |
144 | } | |
145 | else // end of modal dialog | |
146 | { | |
147 | // this will cause IsModalShowing() return FALSE and our local | |
148 | // message loop will terminate | |
149 | wxModalDialogs.DeleteObject(this); | |
150 | } | |
151 | } | |
152 | ||
153 | return TRUE; | |
154 | } | |
155 | ||
156 | #if !TARGET_CARBON | |
157 | extern bool s_macIsInModalLoop ; | |
158 | #endif | |
159 | ||
160 | void wxDialog::DoShowModal() | |
161 | { | |
162 | wxCHECK_RET( !IsModalShowing(), _T("DoShowModal() called twice") ); | |
163 | ||
164 | wxModalDialogs.Append(this); | |
165 | ||
166 | #if TARGET_CARBON | |
167 | // BeginAppModalStateForWindow( (WindowRef) MacGetWindowRef()) ; | |
168 | #else | |
169 | // TODO : test whether parent gets disabled | |
170 | bool formerModal = s_macIsInModalLoop ; | |
171 | s_macIsInModalLoop = true ; | |
172 | #endif | |
173 | while ( IsModalShowing() ) | |
174 | { | |
175 | wxTheApp->MacDoOneEvent() ; | |
176 | // calls process idle itself | |
177 | } | |
178 | ||
179 | #if TARGET_CARBON | |
180 | // EndAppModalStateForWindow( (WindowRef) MacGetWindowRef() ) ; | |
181 | #else | |
182 | // TODO probably reenable the parent window if any | |
183 | s_macIsInModalLoop = formerModal ; | |
184 | #endif | |
185 | } | |
186 | ||
187 | ||
188 | // Replacement for Show(TRUE) for modal dialogs - returns return code | |
189 | int wxDialog::ShowModal() | |
190 | { | |
191 | if ( !IsModal() ) | |
192 | { | |
193 | SetModal(TRUE); | |
194 | } | |
195 | ||
196 | Show(TRUE); | |
197 | return GetReturnCode(); | |
198 | } | |
199 | ||
200 | // NB: this function (surprizingly) may be called for both modal and modeless | |
201 | // dialogs and should work for both of them | |
202 | void wxDialog::EndModal(int retCode) | |
203 | { | |
204 | SetReturnCode(retCode); | |
205 | Show(FALSE); | |
206 | } | |
207 | ||
208 | // Standard buttons | |
209 | void wxDialog::OnOK(wxCommandEvent& WXUNUSED(event)) | |
210 | { | |
211 | if ( Validate() && TransferDataFromWindow() ) | |
212 | { | |
213 | EndModal(wxID_OK); | |
214 | } | |
215 | } | |
216 | ||
217 | void wxDialog::OnApply(wxCommandEvent& WXUNUSED(event)) | |
218 | { | |
219 | if (Validate()) | |
220 | TransferDataFromWindow(); | |
221 | // TODO probably need to disable the Apply button until things change again | |
222 | } | |
223 | ||
224 | void wxDialog::OnCancel(wxCommandEvent& WXUNUSED(event)) | |
225 | { | |
226 | EndModal(wxID_CANCEL); | |
227 | } | |
228 | ||
229 | void wxDialog::OnCloseWindow(wxCloseEvent& WXUNUSED(event)) | |
230 | { | |
231 | // We'll send a Cancel message by default, | |
232 | // which may close the dialog. | |
233 | // Check for looping if the Cancel event handler calls Close(). | |
234 | ||
235 | // Note that if a cancel button and handler aren't present in the dialog, | |
236 | // nothing will happen when you close the dialog via the window manager, or | |
237 | // via Close(). | |
238 | // We wouldn't want to destroy the dialog by default, since the dialog may have been | |
239 | // created on the stack. | |
240 | // However, this does mean that calling dialog->Close() won't delete the dialog | |
241 | // unless the handler for wxID_CANCEL does so. So use Destroy() if you want to be | |
242 | // sure to destroy the dialog. | |
243 | // The default OnCancel (above) simply ends a modal dialog, and hides a modeless dialog. | |
244 | ||
245 | static wxList closing; | |
246 | ||
247 | if ( closing.Member(this) ) | |
248 | return; | |
249 | ||
250 | closing.Append(this); | |
251 | ||
252 | wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL); | |
253 | cancelEvent.SetEventObject( this ); | |
254 | GetEventHandler()->ProcessEvent(cancelEvent); // This may close the dialog | |
255 | ||
256 | closing.DeleteObject(this); | |
257 | } | |
258 | ||
259 | void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& WXUNUSED(event)) | |
260 | { | |
261 | SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)); | |
262 | Refresh(); | |
263 | } | |
264 |