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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/motif/dialog.cpp | |
3 | // Purpose: wxDialog class | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 17/09/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // For compilers that support precompilation, includes "wx.h". | |
13 | #include "wx/wxprec.h" | |
14 | ||
15 | #ifdef __VMS | |
16 | #define XtDisplay XTDISPLAY | |
17 | #define XtWindow XTWINDOW | |
18 | #define XtParent XTPARENT | |
19 | #define XtScreen XTSCREEN | |
20 | #endif | |
21 | ||
22 | #include "wx/dialog.h" | |
23 | ||
24 | #ifndef WX_PRECOMP | |
25 | #include "wx/app.h" | |
26 | #include "wx/utils.h" | |
27 | #include "wx/settings.h" | |
28 | #endif | |
29 | ||
30 | #include "wx/evtloop.h" | |
31 | ||
32 | #ifdef __VMS__ | |
33 | #pragma message disable nosimpint | |
34 | #endif | |
35 | #include <Xm/Xm.h> | |
36 | ||
37 | #include <X11/Shell.h> | |
38 | #if XmVersion >= 1002 | |
39 | #include <Xm/XmAll.h> | |
40 | #endif | |
41 | #include <Xm/MwmUtil.h> | |
42 | #include <Xm/Label.h> | |
43 | #include <Xm/BulletinB.h> | |
44 | #include <Xm/Frame.h> | |
45 | #include <Xm/Text.h> | |
46 | #include <Xm/DialogS.h> | |
47 | #include <Xm/FileSB.h> | |
48 | #include <Xm/RowColumn.h> | |
49 | #include <Xm/LabelG.h> | |
50 | #include <Xm/AtomMgr.h> | |
51 | #if XmVersion > 1000 | |
52 | #include <Xm/Protocols.h> | |
53 | #endif | |
54 | #ifdef __VMS__ | |
55 | #pragma message enable nosimpint | |
56 | #endif | |
57 | ||
58 | #include "wx/motif/private.h" | |
59 | ||
60 | // A stack of modal_showing flags, since we can't rely | |
61 | // on accessing wxDialog::m_modalShowing within | |
62 | // wxDialog::Show in case a callback has deleted the wxDialog. | |
63 | // static wxList wxModalShowingStack; | |
64 | ||
65 | // Lists to keep track of windows, so we can disable/enable them | |
66 | // for modal dialogs | |
67 | wxList wxModalDialogs; | |
68 | extern wxList wxModelessWindows; // Frames and modeless dialogs | |
69 | ||
70 | #define wxUSE_INVISIBLE_RESIZE 1 | |
71 | ||
72 | IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxTopLevelWindow) | |
73 | ||
74 | wxDialog::wxDialog() | |
75 | { | |
76 | m_modalShowing = false; | |
77 | m_eventLoop = NULL; | |
78 | } | |
79 | ||
80 | bool wxDialog::Create(wxWindow *parent, wxWindowID id, | |
81 | const wxString& title, | |
82 | const wxPoint& pos, | |
83 | const wxSize& size, | |
84 | long style, | |
85 | const wxString& name) | |
86 | { | |
87 | SetExtraStyle(GetExtraStyle() | wxTOPLEVEL_EX_DIALOG); | |
88 | ||
89 | if( !wxTopLevelWindow::Create( parent, id, title, pos, size, style, | |
90 | name ) ) | |
91 | return false; | |
92 | ||
93 | m_modalShowing = false; | |
94 | m_eventLoop = NULL; | |
95 | ||
96 | Widget dialogShell = (Widget) m_mainWidget; | |
97 | ||
98 | SetTitle( title ); | |
99 | ||
100 | // Can't remember what this was about... but I think it's necessary. | |
101 | #if wxUSE_INVISIBLE_RESIZE | |
102 | if (pos.x > -1) | |
103 | XtVaSetValues(dialogShell, XmNx, pos.x, | |
104 | NULL); | |
105 | if (pos.y > -1) | |
106 | XtVaSetValues(dialogShell, XmNy, pos.y, | |
107 | NULL); | |
108 | ||
109 | if (size.x > -1) | |
110 | XtVaSetValues(dialogShell, XmNwidth, size.x, NULL); | |
111 | if (size.y > -1) | |
112 | XtVaSetValues(dialogShell, XmNheight, size.y, NULL); | |
113 | #endif | |
114 | ||
115 | // Positioning of the dialog doesn't work properly unless the dialog | |
116 | // is managed, so we manage without mapping to the screen. | |
117 | // To show, we map the shell (actually it's parent). | |
118 | #if !wxUSE_INVISIBLE_RESIZE | |
119 | Widget shell = XtParent(dialogShell) ; | |
120 | XtVaSetValues(shell, XmNmappedWhenManaged, False, NULL); | |
121 | #endif | |
122 | ||
123 | #if !wxUSE_INVISIBLE_RESIZE | |
124 | XtManageChild(dialogShell); | |
125 | SetSize(pos.x, pos.y, size.x, size.y); | |
126 | #endif | |
127 | ||
128 | XtAddEventHandler(dialogShell,ExposureMask,False, | |
129 | wxUniversalRepaintProc, (XtPointer) this); | |
130 | ||
131 | PostCreation(); | |
132 | ||
133 | return true; | |
134 | } | |
135 | ||
136 | bool wxDialog::XmDoCreateTLW(wxWindow* parent, | |
137 | wxWindowID WXUNUSED(id), | |
138 | const wxString& WXUNUSED(title), | |
139 | const wxPoint& WXUNUSED(pos), | |
140 | const wxSize& WXUNUSED(size), | |
141 | long WXUNUSED(style), | |
142 | const wxString& name) | |
143 | { | |
144 | Widget parentWidget = (Widget) 0; | |
145 | if( parent ) | |
146 | parentWidget = (Widget) parent->GetTopWidget(); | |
147 | if( !parent ) | |
148 | parentWidget = (Widget) wxTheApp->GetTopLevelWidget(); | |
149 | ||
150 | wxASSERT_MSG( (parentWidget != (Widget) 0), | |
151 | "Could not find a suitable parent shell for dialog." ); | |
152 | ||
153 | Arg args[2]; | |
154 | XtSetArg (args[0], XmNdefaultPosition, False); | |
155 | XtSetArg (args[1], XmNautoUnmanage, False); | |
156 | Widget dialogShell = | |
157 | XmCreateBulletinBoardDialog( parentWidget, | |
158 | name.char_str(), | |
159 | args, 2); | |
160 | m_mainWidget = (WXWidget) dialogShell; | |
161 | ||
162 | // We don't want margins, since there is enough elsewhere. | |
163 | XtVaSetValues( dialogShell, | |
164 | XmNmarginHeight, 0, | |
165 | XmNmarginWidth, 0, | |
166 | XmNresizePolicy, XmRESIZE_NONE, | |
167 | NULL ) ; | |
168 | ||
169 | XtTranslations ptr ; | |
170 | XtOverrideTranslations(dialogShell, | |
171 | ptr = XtParseTranslationTable("<Configure>: resize()")); | |
172 | XtFree((char *)ptr); | |
173 | ||
174 | XtRealizeWidget(dialogShell); | |
175 | ||
176 | wxAddWindowToTable( (Widget)m_mainWidget, this ); | |
177 | ||
178 | return true; | |
179 | } | |
180 | ||
181 | void wxDialog::SetModal(bool flag) | |
182 | { | |
183 | if ( flag ) | |
184 | wxModelessWindows.DeleteObject(this); | |
185 | else | |
186 | wxModelessWindows.Append(this); | |
187 | } | |
188 | ||
189 | wxDialog::~wxDialog() | |
190 | { | |
191 | m_isBeingDeleted = true; | |
192 | ||
193 | delete m_eventLoop; | |
194 | ||
195 | if (m_mainWidget) | |
196 | { | |
197 | XtRemoveEventHandler((Widget) m_mainWidget, ExposureMask, False, | |
198 | wxUniversalRepaintProc, (XtPointer) this); | |
199 | } | |
200 | ||
201 | m_modalShowing = false; | |
202 | ||
203 | #if !wxUSE_INVISIBLE_RESIZE | |
204 | if (m_mainWidget) | |
205 | { | |
206 | XtUnmapWidget((Widget) m_mainWidget); | |
207 | } | |
208 | #endif | |
209 | ||
210 | PreDestroy(); | |
211 | ||
212 | if ( m_mainWidget ) | |
213 | { | |
214 | wxDeleteWindowFromTable( (Widget)m_mainWidget ); | |
215 | XtDestroyWidget( (Widget)m_mainWidget ); | |
216 | } | |
217 | } | |
218 | ||
219 | void wxDialog::DoSetSize(int x, int y, int width, int height, int sizeFlags) | |
220 | { | |
221 | XtVaSetValues((Widget) m_mainWidget, XmNresizePolicy, XmRESIZE_ANY, NULL); | |
222 | wxWindow::DoSetSize(x, y, width, height, sizeFlags); | |
223 | XtVaSetValues((Widget) m_mainWidget, XmNresizePolicy, XmRESIZE_NONE, NULL); | |
224 | } | |
225 | ||
226 | void wxDialog::DoSetClientSize(int width, int height) | |
227 | { | |
228 | wxWindow::SetSize(-1, -1, width, height); | |
229 | } | |
230 | ||
231 | void wxDialog::SetTitle(const wxString& title) | |
232 | { | |
233 | wxTopLevelWindow::SetTitle( title ); | |
234 | ||
235 | if( !title.empty() ) | |
236 | { | |
237 | wxXmString str( title ); | |
238 | XtVaSetValues( (Widget)m_mainWidget, | |
239 | XmNtitle, (const char*)title.mb_str(), | |
240 | XmNdialogTitle, str(), | |
241 | XmNiconName, (const char*)title.mb_str(), | |
242 | NULL ); | |
243 | } | |
244 | } | |
245 | ||
246 | bool wxDialog::Show( bool show ) | |
247 | { | |
248 | if( !wxWindowBase::Show( show ) ) | |
249 | return false; | |
250 | ||
251 | m_isShown = show; | |
252 | ||
253 | if (show) | |
254 | { | |
255 | // this usually will result in TransferDataToWindow() being called | |
256 | // which will change the controls values so do it before showing as | |
257 | // otherwise we could have some flicker | |
258 | InitDialog(); | |
259 | } | |
260 | ||
261 | if (show) | |
262 | { | |
263 | #if !wxUSE_INVISIBLE_RESIZE | |
264 | XtMapWidget(XtParent((Widget) m_mainWidget)); | |
265 | #else | |
266 | XtManageChild((Widget)m_mainWidget) ; | |
267 | #endif | |
268 | ||
269 | XRaiseWindow( XtDisplay( (Widget)m_mainWidget ), | |
270 | XtWindow( (Widget)m_mainWidget) ); | |
271 | ||
272 | } | |
273 | else | |
274 | { | |
275 | #if !wxUSE_INVISIBLE_RESIZE | |
276 | XtUnmapWidget(XtParent((Widget) m_mainWidget)); | |
277 | #else | |
278 | XtUnmanageChild((Widget)m_mainWidget) ; | |
279 | #endif | |
280 | ||
281 | XFlush(XtDisplay((Widget)m_mainWidget)); | |
282 | XSync(XtDisplay((Widget)m_mainWidget), False); | |
283 | } | |
284 | ||
285 | return true; | |
286 | } | |
287 | ||
288 | // Shows a dialog modally, returning a return code | |
289 | int wxDialog::ShowModal() | |
290 | { | |
291 | Show(true); | |
292 | ||
293 | // after the event loop ran, the widget might already have been destroyed | |
294 | WXDisplay* display = (WXDisplay*)XtDisplay( (Widget)m_mainWidget ); | |
295 | ||
296 | if (m_modalShowing) | |
297 | return 0; | |
298 | m_eventLoop = new wxEventLoop; | |
299 | ||
300 | m_modalShowing = true; | |
301 | XtAddGrab((Widget) m_mainWidget, True, False); | |
302 | ||
303 | m_eventLoop->Run(); | |
304 | ||
305 | // Now process all events in case they get sent to a destroyed dialog | |
306 | wxFlushEvents( display ); | |
307 | ||
308 | delete m_eventLoop; | |
309 | m_eventLoop = NULL; | |
310 | ||
311 | // TODO: is it safe to call this, if the dialog may have been deleted | |
312 | // by now? Probably only if we're using delayed deletion of dialogs. | |
313 | return GetReturnCode(); | |
314 | } | |
315 | ||
316 | void wxDialog::EndModal(int retCode) | |
317 | { | |
318 | if (!m_modalShowing) | |
319 | return; | |
320 | ||
321 | SetReturnCode(retCode); | |
322 | ||
323 | // Strangely, we don't seem to need this now. | |
324 | // XtRemoveGrab((Widget) m_mainWidget); | |
325 | ||
326 | Show(false); | |
327 | ||
328 | m_modalShowing = false; | |
329 | m_eventLoop->Exit(); | |
330 | ||
331 | SetModal(false); | |
332 | } | |
333 | ||
334 | // Destroy the window (delayed, if a managed window) | |
335 | bool wxDialog::Destroy() | |
336 | { | |
337 | if (!wxPendingDelete.Member(this)) | |
338 | wxPendingDelete.Append(this); | |
339 | return true; | |
340 | } | |
341 | ||
342 | void wxDialog::ChangeFont(bool keepOriginalSize) | |
343 | { | |
344 | wxWindow::ChangeFont(keepOriginalSize); | |
345 | } | |
346 | ||
347 | void wxDialog::ChangeBackgroundColour() | |
348 | { | |
349 | if (GetMainWidget()) | |
350 | wxDoChangeBackgroundColour(GetMainWidget(), m_backgroundColour); | |
351 | } | |
352 | ||
353 | void wxDialog::ChangeForegroundColour() | |
354 | { | |
355 | if (GetMainWidget()) | |
356 | wxDoChangeForegroundColour(GetMainWidget(), m_foregroundColour); | |
357 | } |