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1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: src/univ/dialog.cpp | |
3 | // Author: Robert Roebling, Vaclav Slavik | |
4 | // Id: $Id$ | |
5 | // Copyright: (c) 2001 SciTech Software, Inc. (www.scitechsoft.com) | |
65571936 | 6 | // Licence: wxWindows licence |
0e0de6b8 VS |
7 | ///////////////////////////////////////////////////////////////////////////// |
8 | ||
2e9f62da VZ |
9 | // ============================================================================ |
10 | // declarations | |
11 | // ============================================================================ | |
12 | ||
13 | // ---------------------------------------------------------------------------- | |
14 | // headers | |
15 | // ---------------------------------------------------------------------------- | |
16 | ||
2e9f62da VZ |
17 | // For compilers that support precompilation, includes "wx.h". |
18 | #include "wx/wxprec.h" | |
19 | ||
20 | #ifdef __BORLANDC__ | |
21 | #pragma hdrstop | |
22 | #endif | |
23 | ||
fdf565fe WS |
24 | #include "wx/dialog.h" |
25 | ||
2e9f62da | 26 | #ifndef WX_PRECOMP |
2e9f62da VZ |
27 | #include "wx/utils.h" |
28 | #include "wx/app.h" | |
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29 | #endif |
30 | ||
0e0de6b8 | 31 | #include "wx/evtloop.h" |
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32 | |
33 | //----------------------------------------------------------------------------- | |
34 | // wxDialog | |
35 | //----------------------------------------------------------------------------- | |
36 | ||
37 | BEGIN_EVENT_TABLE(wxDialog,wxDialogBase) | |
38 | EVT_BUTTON (wxID_OK, wxDialog::OnOK) | |
39 | EVT_BUTTON (wxID_CANCEL, wxDialog::OnCancel) | |
40 | EVT_BUTTON (wxID_APPLY, wxDialog::OnApply) | |
41 | EVT_CLOSE (wxDialog::OnCloseWindow) | |
42 | END_EVENT_TABLE() | |
43 | ||
44 | IMPLEMENT_DYNAMIC_CLASS(wxDialog,wxTopLevelWindow) | |
45 | ||
46 | void wxDialog::Init() | |
47 | { | |
48 | m_returnCode = 0; | |
49 | m_windowDisabler = NULL; | |
50 | m_eventLoop = NULL; | |
a290fa5a | 51 | m_isShowingModal = false; |
0e0de6b8 VS |
52 | } |
53 | ||
54 | wxDialog::~wxDialog() | |
55 | { | |
a9efc294 VS |
56 | // if the dialog is modal, this will end its event loop |
57 | Show(false); | |
58 | ||
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59 | delete m_eventLoop; |
60 | } | |
61 | ||
62 | bool wxDialog::Create(wxWindow *parent, | |
63 | wxWindowID id, const wxString &title, | |
64 | const wxPoint &pos, const wxSize &size, | |
65 | long style, const wxString &name) | |
66 | { | |
21f4383a | 67 | SetExtraStyle(GetExtraStyle() | wxTOPLEVEL_EX_DIALOG); |
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68 | |
69 | // all dialogs should have tab traversal enabled | |
70 | style |= wxTAB_TRAVERSAL; | |
71 | ||
72 | return wxTopLevelWindow::Create(parent, id, title, pos, size, style, name); | |
73 | } | |
74 | ||
75 | void wxDialog::OnApply(wxCommandEvent &WXUNUSED(event)) | |
76 | { | |
3aa8e4ea | 77 | if ( Validate() ) |
0e0de6b8 VS |
78 | TransferDataFromWindow(); |
79 | } | |
80 | ||
81 | void wxDialog::OnCancel(wxCommandEvent &WXUNUSED(event)) | |
82 | { | |
83 | if ( IsModal() ) | |
84 | { | |
85 | EndModal(wxID_CANCEL); | |
86 | } | |
87 | else | |
88 | { | |
89 | SetReturnCode(wxID_CANCEL); | |
a290fa5a | 90 | Show(false); |
0e0de6b8 VS |
91 | } |
92 | } | |
93 | ||
94 | void wxDialog::OnOK(wxCommandEvent &WXUNUSED(event)) | |
95 | { | |
96 | if ( Validate() && TransferDataFromWindow() ) | |
97 | { | |
98 | if ( IsModal() ) | |
99 | { | |
100 | EndModal(wxID_OK); | |
101 | } | |
102 | else | |
103 | { | |
104 | SetReturnCode(wxID_OK); | |
a290fa5a | 105 | Show(false); |
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106 | } |
107 | } | |
108 | } | |
109 | ||
110 | void wxDialog::OnCloseWindow(wxCloseEvent& WXUNUSED(event)) | |
111 | { | |
112 | // We'll send a Cancel message by default, | |
113 | // which may close the dialog. | |
114 | // Check for looping if the Cancel event handler calls Close(). | |
115 | ||
116 | // Note that if a cancel button and handler aren't present in the dialog, | |
117 | // nothing will happen when you close the dialog via the window manager, or | |
118 | // via Close(). | |
119 | // We wouldn't want to destroy the dialog by default, since the dialog may have been | |
120 | // created on the stack. | |
121 | // However, this does mean that calling dialog->Close() won't delete the dialog | |
122 | // unless the handler for wxID_CANCEL does so. So use Destroy() if you want to be | |
123 | // sure to destroy the dialog. | |
124 | // The default OnCancel (above) simply ends a modal dialog, and hides a modeless dialog. | |
125 | ||
126 | static wxList s_closing; | |
127 | ||
128 | if (s_closing.Member(this)) | |
129 | return; // no loops | |
130 | ||
131 | s_closing.Append(this); | |
132 | ||
133 | wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL); | |
134 | cancelEvent.SetEventObject(this); | |
135 | GetEventHandler()->ProcessEvent(cancelEvent); | |
136 | s_closing.DeleteObject(this); | |
137 | } | |
138 | ||
139 | bool wxDialog::Show(bool show) | |
140 | { | |
141 | if ( !show ) | |
142 | { | |
143 | // if we had disabled other app windows, reenable them back now because | |
144 | // if they stay disabled Windows will activate another window (one | |
145 | // which is enabled, anyhow) and we will lose activation | |
146 | if ( m_windowDisabler ) | |
147 | { | |
148 | delete m_windowDisabler; | |
149 | m_windowDisabler = NULL; | |
150 | } | |
151 | ||
152 | if ( IsModal() ) | |
153 | EndModal(wxID_CANCEL); | |
154 | } | |
155 | ||
3aa8e4ea JS |
156 | if (show && CanDoLayoutAdaptation()) |
157 | DoLayoutAdaptation(); | |
158 | ||
0e0de6b8 VS |
159 | bool ret = wxDialogBase::Show(show); |
160 | ||
3aa8e4ea | 161 | if ( show ) |
0e0de6b8 VS |
162 | InitDialog(); |
163 | ||
164 | return ret; | |
165 | } | |
166 | ||
167 | bool wxDialog::IsModal() const | |
168 | { | |
169 | return m_isShowingModal; | |
170 | } | |
171 | ||
0e0de6b8 VS |
172 | int wxDialog::ShowModal() |
173 | { | |
174 | if ( IsModal() ) | |
175 | { | |
176 | wxFAIL_MSG( wxT("wxDialog:ShowModal called twice") ); | |
177 | return GetReturnCode(); | |
178 | } | |
179 | ||
180 | // use the apps top level window as parent if none given unless explicitly | |
181 | // forbidden | |
182 | if ( !GetParent() && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) ) | |
183 | { | |
71d1d0e2 | 184 | wxWindow * const parent = GetParentForModalDialog(); |
0e0de6b8 VS |
185 | if ( parent && parent != this ) |
186 | { | |
187 | m_parent = parent; | |
188 | } | |
189 | } | |
190 | ||
a290fa5a | 191 | Show(true); |
0e0de6b8 | 192 | |
a290fa5a | 193 | m_isShowingModal = true; |
0e0de6b8 | 194 | |
9a83f860 | 195 | wxASSERT_MSG( !m_windowDisabler, wxT("disabling windows twice?") ); |
0e0de6b8 | 196 | |
e3fc616c | 197 | #if defined(__WXGTK__) || defined(__WXMGL__) |
b22d16ad | 198 | wxBusyCursorSuspender suspender; |
e3fc616c | 199 | // FIXME (FIXME_MGL) - make sure busy cursor disappears under MSW too |
b22d16ad VS |
200 | #endif |
201 | ||
0e0de6b8 VS |
202 | m_windowDisabler = new wxWindowDisabler(this); |
203 | if ( !m_eventLoop ) | |
204 | m_eventLoop = new wxEventLoop; | |
205 | ||
206 | m_eventLoop->Run(); | |
207 | ||
208 | return GetReturnCode(); | |
209 | } | |
210 | ||
211 | void wxDialog::EndModal(int retCode) | |
212 | { | |
9a83f860 | 213 | wxASSERT_MSG( m_eventLoop, wxT("wxDialog is not modal") ); |
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214 | |
215 | SetReturnCode(retCode); | |
216 | ||
217 | if ( !IsModal() ) | |
218 | { | |
219 | wxFAIL_MSG( wxT("wxDialog:EndModal called twice") ); | |
220 | return; | |
221 | } | |
222 | ||
a290fa5a | 223 | m_isShowingModal = false; |
fdf565fe | 224 | |
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225 | m_eventLoop->Exit(); |
226 | ||
a290fa5a | 227 | Show(false); |
0e0de6b8 | 228 | } |