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[wxWidgets.git] / src / motif / dialog.cpp
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1/////////////////////////////////////////////////////////////////////////////
2// Name: 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
dfe1eee3 9// Licence: wxWindows licence
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10/////////////////////////////////////////////////////////////////////////////
11
12#ifdef __GNUG__
13#pragma implementation "dialog.h"
14#endif
15
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16#ifdef __VMS
17#define XtDisplay XTDISPLAY
18#define XtWindow XTWINDOW
19#define XtParent XTPARENT
20#define XtScreen XTSCREEN
21#endif
22
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23#include "wx/dialog.h"
24#include "wx/utils.h"
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25#include "wx/app.h"
26#include "wx/settings.h"
7e1bcfa8 27#include "wx/evtloop.h"
4bb6408c 28
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29#ifdef __VMS__
30#pragma message disable nosimpint
31#endif
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32#include <Xm/Xm.h>
33
34#include <X11/Shell.h>
35#if XmVersion >= 1002
36#include <Xm/XmAll.h>
37#endif
38#include <Xm/MwmUtil.h>
39#include <Xm/Label.h>
40#include <Xm/BulletinB.h>
41#include <Xm/Frame.h>
42#include <Xm/Text.h>
43#include <Xm/DialogS.h>
44#include <Xm/FileSB.h>
45#include <Xm/RowColumn.h>
46#include <Xm/LabelG.h>
47#include <Xm/AtomMgr.h>
48#if XmVersion > 1000
49#include <Xm/Protocols.h>
50#endif
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51#ifdef __VMS__
52#pragma message enable nosimpint
53#endif
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54
55#include "wx/motif/private.h"
56
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57// A stack of modal_showing flags, since we can't rely
58// on accessing wxDialog::m_modalShowing within
59// wxDialog::Show in case a callback has deleted the wxDialog.
7e1bcfa8 60// static wxList wxModalShowingStack;
dfc54541 61
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62// Lists to keep track of windows, so we can disable/enable them
63// for modal dialogs
64wxList wxModalDialogs;
798a4529 65extern wxList wxModelessWindows; // Frames and modeless dialogs
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66extern wxList wxPendingDelete;
67
47d67540 68#define wxUSE_INVISIBLE_RESIZE 1
dfc54541 69
798a4529 70IMPLEMENT_DYNAMIC_CLASS(wxDialog, wxTopLevelWindow)
4bb6408c 71
798a4529 72BEGIN_EVENT_TABLE(wxDialog, wxTopLevelWindow)
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73 EVT_BUTTON(wxID_OK, wxDialog::OnOK)
74 EVT_BUTTON(wxID_APPLY, wxDialog::OnApply)
75 EVT_BUTTON(wxID_CANCEL, wxDialog::OnCancel)
76 EVT_CHAR_HOOK(wxDialog::OnCharHook)
77 EVT_SYS_COLOUR_CHANGED(wxDialog::OnSysColourChanged)
78 EVT_CLOSE(wxDialog::OnCloseWindow)
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79END_EVENT_TABLE()
80
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81
82wxDialog::wxDialog()
83{
dfc54541 84 m_modalShowing = FALSE;
7e1bcfa8 85 m_eventLoop = NULL;
a756f210 86 m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
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87}
88
89bool wxDialog::Create(wxWindow *parent, wxWindowID id,
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90 const wxString& title,
91 const wxPoint& pos,
92 const wxSize& size,
93 long style,
94 const wxString& name)
4bb6408c 95{
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96 SetExtraStyle(GetExtraStyle() | wxTOPLEVEL_EX_DIALOG);
97
98 if( !wxTopLevelWindow::Create( parent, id, title, pos, size, style,
99 name ) )
100 return FALSE;
101
dfc54541 102 m_modalShowing = FALSE;
7e1bcfa8 103 m_eventLoop = NULL;
dfe1eee3 104
a756f210 105 m_backgroundColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
0d57be45 106 m_foregroundColour = *wxBLACK;
dfe1eee3 107
798a4529 108 Widget dialogShell = (Widget) m_mainWidget;
dfc54541 109 Widget shell = XtParent(dialogShell) ;
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110
111 SetTitle( title );
dfe1eee3 112
a756f210 113 m_font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
4b5f3fe6 114 ChangeFont(FALSE);
dfe1eee3 115
dfc54541 116 // Can't remember what this was about... but I think it's necessary.
dfad0599 117 if (wxUSE_INVISIBLE_RESIZE)
dfc54541 118 {
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119 if (pos.x > -1)
120 XtVaSetValues(dialogShell, XmNx, pos.x,
121 NULL);
122 if (pos.y > -1)
123 XtVaSetValues(dialogShell, XmNy, pos.y,
124 NULL);
dfe1eee3 125
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126 if (size.x > -1)
127 XtVaSetValues(dialogShell, XmNwidth, size.x, NULL);
128 if (size.y > -1)
129 XtVaSetValues(dialogShell, XmNheight, size.y, NULL);
dfc54541 130 }
dfe1eee3 131
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132 // Positioning of the dialog doesn't work properly unless the dialog
133 // is managed, so we manage without mapping to the screen.
134 // To show, we map the shell (actually it's parent).
dfad0599 135 if (!wxUSE_INVISIBLE_RESIZE)
dfc54541 136 XtVaSetValues(shell, XmNmappedWhenManaged, FALSE, NULL);
dfe1eee3 137
dfad0599 138 if (!wxUSE_INVISIBLE_RESIZE)
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139 {
140 XtManageChild(dialogShell);
141 SetSize(pos.x, pos.y, size.x, size.y);
142 }
143 XtAddEventHandler(dialogShell,ExposureMask,FALSE,
2e35f56f 144 wxUniversalRepaintProc, (XtPointer) this);
dfe1eee3 145
0d57be45 146 ChangeBackgroundColour();
dfe1eee3 147
dfc54541 148 return TRUE;
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149}
150
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151bool wxDialog::DoCreate( wxWindow* parent, wxWindowID id,
152 const wxString& title,
153 const wxPoint& pos,
154 const wxSize& size,
155 long style,
156 const wxString& name )
157{
158 Widget parentWidget = (Widget) 0;
159 if( parent )
160 parentWidget = (Widget) parent->GetTopWidget();
161 if( !parent )
162 parentWidget = (Widget) wxTheApp->GetTopLevelWidget();
163
164 wxASSERT_MSG( (parentWidget != (Widget) 0),
165 "Could not find a suitable parent shell for dialog." );
166
167 Arg args[2];
168 XtSetArg (args[0], XmNdefaultPosition, False);
169 XtSetArg (args[1], XmNautoUnmanage, False);
170 Widget dialogShell =
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171 XmCreateBulletinBoardDialog( parentWidget,
172 wxConstCast(name.c_str(), char),
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173 args, 2);
174 m_mainWidget = (WXWidget) dialogShell;
175
176 // We don't want margins, since there is enough elsewhere.
177 XtVaSetValues( dialogShell,
178 XmNmarginHeight, 0,
179 XmNmarginWidth, 0,
180 XmNresizePolicy, XmRESIZE_NONE,
181 NULL ) ;
182
183 XtTranslations ptr ;
184 XtOverrideTranslations(dialogShell,
185 ptr = XtParseTranslationTable("<Configure>: resize()"));
186 XtFree((char *)ptr);
187
188 XtRealizeWidget(dialogShell);
189
190 wxAddWindowToTable( (Widget)m_mainWidget, this );
191
192 return TRUE;
193}
194
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195void wxDialog::SetModal(bool flag)
196{
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197 if ( flag )
198 m_windowStyle |= wxDIALOG_MODAL ;
199 else
200 if ( m_windowStyle & wxDIALOG_MODAL )
2d120f83 201 m_windowStyle -= wxDIALOG_MODAL ;
dfe1eee3 202
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203 wxModelessWindows.DeleteObject(this);
204 if (!flag)
205 wxModelessWindows.Append(this);
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206}
207
208wxDialog::~wxDialog()
209{
3ab377bd 210 m_isBeingDeleted = TRUE;
7e1bcfa8 211 delete m_eventLoop;
798a4529 212
2e35f56f 213 if (m_mainWidget)
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214 {
215 XtRemoveEventHandler((Widget) m_mainWidget, ExposureMask, FALSE,
216 wxUniversalRepaintProc, (XtPointer) this);
217 }
dfe1eee3 218
dfc54541 219 m_modalShowing = FALSE;
dfad0599 220 if (!wxUSE_INVISIBLE_RESIZE && m_mainWidget)
dfc54541 221 {
2d120f83 222 XtUnmapWidget((Widget) m_mainWidget);
dfc54541 223 }
798a4529 224}
dfe1eee3 225
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226void wxDialog::DoDestroy()
227{
228 if( m_mainWidget )
cba2db0c 229 {
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230 wxDeleteWindowFromTable( (Widget)m_mainWidget );
231 XtDestroyWidget( (Widget)m_mainWidget );
dfc54541 232 }
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233}
234
235// By default, pressing escape cancels the dialog
236void wxDialog::OnCharHook(wxKeyEvent& event)
237{
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238 if (event.m_keyCode == WXK_ESCAPE)
239 {
240 // Behaviour changed in 2.0: we'll send a Cancel message
241 // to the dialog instead of Close.
242 wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
243 cancelEvent.SetEventObject( this );
244 GetEventHandler()->ProcessEvent(cancelEvent);
dfe1eee3 245
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246 return;
247 }
248 // We didn't process this event.
249 event.Skip();
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250}
251
bfc6fde4 252void wxDialog::DoSetSize(int x, int y, int width, int height, int sizeFlags)
4bb6408c 253{
dfc54541 254 XtVaSetValues((Widget) m_mainWidget, XmNresizePolicy, XmRESIZE_ANY, NULL);
bfc6fde4 255 wxWindow::DoSetSize(x, y, width, height, sizeFlags);
dfc54541 256 XtVaSetValues((Widget) m_mainWidget, XmNresizePolicy, XmRESIZE_NONE, NULL);
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257}
258
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259void wxDialog::DoSetClientSize(int width, int height)
260{
261 wxWindow::SetSize(-1, -1, width, height);
262}
263
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264void wxDialog::SetTitle(const wxString& title)
265{
798a4529 266 wxTopLevelWindow::SetTitle( title );
4bb6408c 267
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268 if( !title.empty() )
269 {
270 wxXmString str( title );
271 XtVaSetValues( (Widget)m_mainWidget,
272 XmNtitle, title.c_str(),
273 XmNdialogTitle, str(), // Roberto Cocchi
274 XmNiconName, title.c_str(),
275 NULL );
dfc54541 276 }
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277}
278
798a4529 279bool wxDialog::Show( bool show )
dfc54541 280{
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281 if( !wxTopLevelWindowMotif::Show( show ) )
282 return FALSE;
dfc54541 283
dfc54541 284 m_isShown = show;
dfe1eee3 285
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286 if (show)
287 {
dfad0599 288 if (!wxUSE_INVISIBLE_RESIZE)
2d120f83 289 XtMapWidget(XtParent((Widget) m_mainWidget));
dfc54541 290 else
798a4529 291 XtManageChild((Widget)m_mainWidget) ;
dfe1eee3 292
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293 XRaiseWindow( XtDisplay( (Widget)m_mainWidget ),
294 XtWindow( (Widget)m_mainWidget) );
dfe1eee3 295
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296 }
297 else
298 {
dfad0599 299 if (!wxUSE_INVISIBLE_RESIZE)
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300 XtUnmapWidget(XtParent((Widget) m_mainWidget));
301 else
798a4529 302 XtUnmanageChild((Widget)m_mainWidget) ;
dfe1eee3 303
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304 XFlush(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()));
305 XSync(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()), FALSE);
dfc54541 306 }
dfe1eee3 307
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308 return TRUE;
309}
310
311// Shows a dialog modally, returning a return code
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312int wxDialog::ShowModal()
313{
314 m_windowStyle |= wxDIALOG_MODAL;
dfe1eee3 315
dfc54541 316 Show(TRUE);
dfe1eee3 317
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318 if (m_modalShowing)
319 return 0;
7e1bcfa8 320 m_eventLoop = new wxEventLoop;
dfe1eee3 321
dfc54541 322 m_modalShowing = TRUE;
793f619f 323 XtAddGrab((Widget) m_mainWidget, TRUE, FALSE);
dfe1eee3 324
7e1bcfa8 325 m_eventLoop->Run();
dfe1eee3 326
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327 // Now process all events in case they get sent to a destroyed dialog
328 XSync(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()), FALSE);
7e1bcfa8 329 while (m_eventLoop->Pending())
dfc54541 330 {
3d870472 331 XFlush(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()));
7e1bcfa8 332 m_eventLoop->Dispatch();
dfc54541 333 }
dfe1eee3 334
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335 delete m_eventLoop;
336 m_eventLoop = NULL;
337
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338 // TODO: is it safe to call this, if the dialog may have been deleted
339 // by now? Probably only if we're using delayed deletion of dialogs.
340 return GetReturnCode();
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341}
342
343void wxDialog::EndModal(int retCode)
344{
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345 if (!m_modalShowing)
346 return;
dfe1eee3 347
dfc54541 348 SetReturnCode(retCode);
dfe1eee3 349
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350 // Strangely, we don't seem to need this now.
351 // XtRemoveGrab((Widget) m_mainWidget);
dfe1eee3 352
dfc54541 353 Show(FALSE);
dfe1eee3 354
dfc54541 355 m_modalShowing = FALSE;
7e1bcfa8 356 m_eventLoop->Exit();
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357}
358
359// Standard buttons
f9e02ac7 360void wxDialog::OnOK(wxCommandEvent& WXUNUSED(event))
4bb6408c 361{
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362 if ( Validate() && TransferDataFromWindow() )
363 {
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364 if ( IsModal() )
365 EndModal(wxID_OK);
366 else
367 {
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368 SetReturnCode(wxID_OK);
369 this->Show(FALSE);
4bb6408c 370 }
2d120f83 371 }
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372}
373
f9e02ac7 374void wxDialog::OnApply(wxCommandEvent& WXUNUSED(event))
4bb6408c 375{
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376 if (Validate())
377 TransferDataFromWindow();
378 // TODO probably need to disable the Apply button until things change again
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379}
380
f9e02ac7 381void wxDialog::OnCancel(wxCommandEvent& WXUNUSED(event))
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382{
383 if ( IsModal() )
384 EndModal(wxID_CANCEL);
385 else
386 {
387 SetReturnCode(wxID_CANCEL);
2d120f83 388 this->Show(FALSE);
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389 }
390}
391
af111fc3 392void wxDialog::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
4bb6408c 393{
e3065973 394 // We'll send a Cancel message by default,
4bb6408c 395 // which may close the dialog.
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396 // Check for looping if the Cancel event handler calls Close().
397
398 // Note that if a cancel button and handler aren't present in the dialog,
399 // nothing will happen when you close the dialog via the window manager, or
400 // via Close().
401 // We wouldn't want to destroy the dialog by default, since the dialog may have been
402 // created on the stack.
403 // However, this does mean that calling dialog->Close() won't delete the dialog
404 // unless the handler for wxID_CANCEL does so. So use Destroy() if you want to be
405 // sure to destroy the dialog.
406 // The default OnCancel (above) simply ends a modal dialog, and hides a modeless dialog.
407
4bb6408c 408 static wxList closing;
dfe1eee3 409
4bb6408c 410 if ( closing.Member(this) )
e3065973 411 return;
dfe1eee3 412
4bb6408c 413 closing.Append(this);
dfe1eee3 414
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415 wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
416 cancelEvent.SetEventObject( this );
e3065973 417 GetEventHandler()->ProcessEvent(cancelEvent); // This may close the dialog
4bb6408c 418
e3065973 419 closing.DeleteObject(this);
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420}
421
422// Destroy the window (delayed, if a managed window)
423bool wxDialog::Destroy()
424{
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425 if (!wxPendingDelete.Member(this))
426 wxPendingDelete.Append(this);
427 return TRUE;
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428}
429
f9e02ac7 430void wxDialog::OnSysColourChanged(wxSysColourChangedEvent& WXUNUSED(event))
4bb6408c 431{
a756f210 432 SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
2d120f83 433 Refresh();
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434}
435
94b49b93 436void wxDialog::ChangeFont(bool keepOriginalSize)
0d57be45 437{
94b49b93 438 wxWindow::ChangeFont(keepOriginalSize);
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439}
440
441void wxDialog::ChangeBackgroundColour()
442{
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443 if (GetMainWidget())
444 DoChangeBackgroundColour(GetMainWidget(), m_backgroundColour);
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445}
446
447void wxDialog::ChangeForegroundColour()
448{
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449 if (GetMainWidget())
450 DoChangeForegroundColour(GetMainWidget(), m_foregroundColour);
0d57be45 451}