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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
26wxList wxModalDialogs;
27//wxList wxModelessWindows; // Frames and modeless dialogs
28extern wxList wxPendingDelete;
29
30#if !USE_SHARED_LIBRARY
31IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxTopLevelWindow)
32
33BEGIN_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)
43END_EVENT_TABLE()
44
45#endif
46
47wxDialog::wxDialog()
48{
49 m_isShown = FALSE;
50 SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
51}
52
53bool 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 SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
61
62
63 if ( !wxTopLevelWindow::Create(parent, id, title, pos, size, style, name) )
64 return FALSE;
65
66 MacCreateRealWindow( title , pos , size , MacRemoveBordersFromStyle(style) & ~(wxYES|wxOK|wxNO|wxCANCEL) , name ) ;
67
68 m_macWindowBackgroundTheme = kThemeBrushDialogBackgroundActive ;
69 SetThemeWindowBackground( (WindowRef) m_macWindow , m_macWindowBackgroundTheme , false ) ;
70
71 return TRUE;
72}
73
74void wxDialog::SetModal(bool flag)
75{
76 if ( flag )
77 {
78 m_windowStyle |= wxDIALOG_MODAL;
79
80 wxModelessWindows.DeleteObject(this);
81#if TARGET_CARBON
82 SetWindowModality( (WindowRef) MacGetWindowRef() , kWindowModalityAppModal , NULL ) ;
83#endif
84 }
85 else
86 {
87 m_windowStyle &= ~wxDIALOG_MODAL;
88
89 wxModelessWindows.Append(this);
90 }
91}
92
93wxDialog::~wxDialog()
94{
95 m_isBeingDeleted = TRUE;
96 Show(FALSE);
97}
98
99// By default, pressing escape cancels the dialog , on mac command-stop does the same thing
100void wxDialog::OnCharHook(wxKeyEvent& event)
101{
102 if (( event.m_keyCode == WXK_ESCAPE ||
103 ( event.m_keyCode == '.' && event.MetaDown() ) )
104 && FindWindow(wxID_CANCEL) )
105 {
106 // Behaviour changed in 2.0: we'll send a Cancel message
107 // to the dialog instead of Close.
108 wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
109 cancelEvent.SetEventObject( this );
110 GetEventHandler()->ProcessEvent(cancelEvent);
111
112 return;
113 }
114 // We didn't process this event.
115 event.Skip();
116}
117
118bool wxDialog::IsModal() const
119{
120 return (GetWindowStyleFlag() & wxDIALOG_MODAL) != 0;
121}
122
123
124bool wxDialog::IsModalShowing() const
125{
126 return wxModalDialogs.Find((wxDialog *)this) != NULL; // const_cast
127}
128
129bool wxDialog::Show(bool show)
130{
131 if ( !wxDialogBase::Show(show) )
132 {
133 // nothing to do
134 return FALSE;
135 }
136
137 if ( show )
138 {
139 // usually will result in TransferDataToWindow() being called
140 InitDialog();
141 }
142
143 if ( IsModal() )
144 {
145 if ( show )
146 {
147 DoShowModal();
148 }
149 else // end of modal dialog
150 {
151 // this will cause IsModalShowing() return FALSE and our local
152 // message loop will terminate
153 wxModalDialogs.DeleteObject(this);
154 }
155 }
156
157 return TRUE;
158}
159
160#if !TARGET_CARBON
161extern bool s_macIsInModalLoop ;
162#endif
163
164void wxDialog::DoShowModal()
165{
166 wxCHECK_RET( !IsModalShowing(), _T("DoShowModal() called twice") );
167
168 wxModalDialogs.Append(this);
169
170 wxWindow *parent = GetParent();
171
172#if TARGET_CARBON
173 BeginAppModalStateForWindow( (WindowRef) MacGetWindowRef()) ;
174#else
175 // TODO : test whether parent gets disabled
176 bool formerModal = s_macIsInModalLoop ;
177 s_macIsInModalLoop = true ;
178#endif
179 while ( IsModalShowing() )
180 {
181 wxTheApp->MacDoOneEvent() ;
182 // calls process idle itself
183 }
184
185#if TARGET_CARBON
186 EndAppModalStateForWindow( (WindowRef) MacGetWindowRef() ) ;
187#else
188 // TODO probably reenable the parent window if any
189 s_macIsInModalLoop = formerModal ;
190#endif
191}
192
193
194// Replacement for Show(TRUE) for modal dialogs - returns return code
195int wxDialog::ShowModal()
196{
197 if ( !IsModal() )
198 {
199 SetModal(TRUE);
200 }
201
202 Show(TRUE);
203 return GetReturnCode();
204}
205
206// NB: this function (surprizingly) may be called for both modal and modeless
207// dialogs and should work for both of them
208void wxDialog::EndModal(int retCode)
209{
210 SetReturnCode(retCode);
211 Show(FALSE);
212}
213
214// Standard buttons
215void wxDialog::OnOK(wxCommandEvent& WXUNUSED(event))
216{
217 if ( Validate() && TransferDataFromWindow() )
218 {
219 EndModal(wxID_OK);
220 }
221}
222
223void wxDialog::OnApply(wxCommandEvent& WXUNUSED(event))
224{
225 if (Validate())
226 TransferDataFromWindow();
227 // TODO probably need to disable the Apply button until things change again
228}
229
230void wxDialog::OnCancel(wxCommandEvent& WXUNUSED(event))
231{
232 EndModal(wxID_CANCEL);
233}
234
235void wxDialog::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
236{
237 // We'll send a Cancel message by default,
238 // which may close the dialog.
239 // Check for looping if the Cancel event handler calls Close().
240
241 // Note that if a cancel button and handler aren't present in the dialog,
242 // nothing will happen when you close the dialog via the window manager, or
243 // via Close().
244 // We wouldn't want to destroy the dialog by default, since the dialog may have been
245 // created on the stack.
246 // However, this does mean that calling dialog->Close() won't delete the dialog
247 // unless the handler for wxID_CANCEL does so. So use Destroy() if you want to be
248 // sure to destroy the dialog.
249 // The default OnCancel (above) simply ends a modal dialog, and hides a modeless dialog.
250
251 static wxList closing;
252
253 if ( closing.Member(this) )
254 return;
255
256 closing.Append(this);
257
258 wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
259 cancelEvent.SetEventObject( this );
260 GetEventHandler()->ProcessEvent(cancelEvent); // This may close the dialog
261
262 closing.DeleteObject(this);
263}
264
265void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& WXUNUSED(event))
266{
267 SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
268 Refresh();
269}
270