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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 // Lists to keep track of windows, so we can disable/enable them
23 // for modal dialogs
24 wxList wxModalDialogs;
25 wxList wxModelessWindows; // Frames and modeless dialogs
26 extern wxList wxPendingDelete;
27
28 #if !USE_SHARED_LIBRARY
29 IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxPanel)
30
31 BEGIN_EVENT_TABLE(wxDialog, wxPanel)
32 EVT_BUTTON(wxID_OK, wxDialog::OnOK)
33 EVT_BUTTON(wxID_APPLY, wxDialog::OnApply)
34 EVT_BUTTON(wxID_CANCEL, wxDialog::OnCancel)
35 EVT_CHAR_HOOK(wxDialog::OnCharHook)
36 EVT_SYS_COLOUR_CHANGED(wxDialog::OnSysColourChanged)
37 EVT_CLOSE(wxDialog::OnCloseWindow)
38 END_EVENT_TABLE()
39
40 #endif
41
42 wxDialog::wxDialog()
43 {
44 SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
45 }
46
47 bool wxDialog::Create(wxWindow *parent, wxWindowID id,
48 const wxString& title,
49 const wxPoint& pos,
50 const wxSize& size,
51 long style,
52 const wxString& name)
53 {
54 m_windowStyle = style;
55
56 SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
57 SetName(name);
58
59 if (!parent)
60 wxTopLevelWindows.Append(this);
61
62 if (parent) parent->AddChild(this);
63
64 if ( id == -1 )
65 m_windowId = (int)NewControlId();
66 else
67 m_windowId = id;
68
69 // TODO: create dialog
70
71 return FALSE;
72 }
73
74 void wxDialog::SetModal(bool flag)
75 {
76 if ( flag )
77 m_windowStyle |= wxDIALOG_MODAL ;
78 else
79 if ( m_windowStyle & wxDIALOG_MODAL )
80 m_windowStyle -= wxDIALOG_MODAL ;
81
82 wxModelessWindows.DeleteObject(this);
83 if (!flag)
84 wxModelessWindows.Append(this);
85 }
86
87 wxDialog::~wxDialog()
88 {
89 // TODO
90 wxTopLevelWindows.DeleteObject(this);
91
92 if ( (GetWindowStyleFlag() & wxDIALOG_MODAL) != wxDIALOG_MODAL )
93 wxModelessWindows.DeleteObject(this);
94
95 // If this is the last top-level window, exit.
96 if (wxTheApp && (wxTopLevelWindows.Number() == 0))
97 {
98 wxTheApp->SetTopWindow(NULL);
99
100 if (wxTheApp->GetExitOnFrameDelete())
101 {
102 // TODO: exit
103 }
104 }
105 }
106
107 // By default, pressing escape cancels the dialog
108 void wxDialog::OnCharHook(wxKeyEvent& event)
109 {
110 if (event.m_keyCode == WXK_ESCAPE)
111 {
112 // Behaviour changed in 2.0: we'll send a Cancel message
113 // to the dialog instead of Close.
114 wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
115 cancelEvent.SetEventObject( this );
116 GetEventHandler()->ProcessEvent(cancelEvent);
117
118 return;
119 }
120 // We didn't process this event.
121 event.Skip();
122 }
123
124 void wxDialog::Iconize(bool WXUNUSED(iconize))
125 {
126 // TODO
127 }
128
129 bool wxDialog::IsIconized() const
130 {
131 // TODO
132 return FALSE;
133 }
134
135 void wxDialog::SetClientSize(int width, int height)
136 {
137 // TODO
138 }
139
140 void wxDialog::GetPosition(int *x, int *y) const
141 {
142 // TODO
143 }
144
145 bool wxDialog::Show(bool show)
146 {
147 // TODO
148 return FALSE;
149 }
150
151 void wxDialog::SetTitle(const wxString& title)
152 {
153 // TODO
154 }
155
156 wxString wxDialog::GetTitle() const
157 {
158 // TODO
159 return wxString("");
160 }
161
162 void wxDialog::Centre(int direction)
163 {
164 int x_offset,y_offset ;
165 int display_width, display_height;
166 int width, height, x, y;
167 wxWindow *parent = GetParent();
168 if ((direction & wxCENTER_FRAME) && parent)
169 {
170 parent->GetPosition(&x_offset,&y_offset) ;
171 parent->GetSize(&display_width,&display_height) ;
172 }
173 else
174 {
175 wxDisplaySize(&display_width, &display_height);
176 x_offset = 0 ;
177 y_offset = 0 ;
178 }
179
180 GetSize(&width, &height);
181 GetPosition(&x, &y);
182
183 if (direction & wxHORIZONTAL)
184 x = (int)((display_width - width)/2);
185 if (direction & wxVERTICAL)
186 y = (int)((display_height - height)/2);
187
188 SetSize(x+x_offset, y+y_offset, width, height);
189 }
190
191 // Replacement for Show(TRUE) for modal dialogs - returns return code
192 int wxDialog::ShowModal()
193 {
194 m_windowStyle |= wxDIALOG_MODAL;
195 // TODO: modal showing
196 Show(TRUE);
197 return GetReturnCode();
198 }
199
200 void wxDialog::EndModal(int retCode)
201 {
202 SetReturnCode(retCode);
203 // TODO modal un-showing
204 Show(FALSE);
205 }
206
207 // Standard buttons
208 void wxDialog::OnOK(wxCommandEvent& event)
209 {
210 if ( Validate() && TransferDataFromWindow() )
211 {
212 if ( IsModal() )
213 EndModal(wxID_OK);
214 else
215 {
216 SetReturnCode(wxID_OK);
217 this->Show(FALSE);
218 }
219 }
220 }
221
222 void wxDialog::OnApply(wxCommandEvent& event)
223 {
224 if (Validate())
225 TransferDataFromWindow();
226 // TODO probably need to disable the Apply button until things change again
227 }
228
229 void wxDialog::OnCancel(wxCommandEvent& event)
230 {
231 if ( IsModal() )
232 EndModal(wxID_CANCEL);
233 else
234 {
235 SetReturnCode(wxID_CANCEL);
236 this->Show(FALSE);
237 }
238 }
239
240 bool wxDialog::OnClose()
241 {
242 // Behaviour changed in 2.0: we'll send a Cancel message by default,
243 // which may close the dialog.
244 // Check for looping if the Cancel event handler calls Close()
245
246 static wxList closing;
247
248 if ( closing.Member(this) )
249 return FALSE;
250
251 closing.Append(this);
252
253 wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
254 cancelEvent.SetEventObject( this );
255 GetEventHandler()->ProcessEvent(cancelEvent);
256
257 closing.DeleteObject(this);
258
259 return FALSE;
260 }
261
262 void wxDialog::OnCloseWindow(wxCloseEvent& event)
263 {
264 // Compatibility
265 if ( GetEventHandler()->OnClose() || event.GetForce())
266 {
267 this->Destroy();
268 }
269 }
270
271 // Destroy the window (delayed, if a managed window)
272 bool wxDialog::Destroy()
273 {
274 if (!wxPendingDelete.Member(this))
275 wxPendingDelete.Append(this);
276 return TRUE;
277 }
278
279 void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& event)
280 {
281 SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
282 Refresh();
283 }
284
285 void wxDialog::Fit()
286 {
287 }