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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk/dialog.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 // For compilers that support precompilation, includes "wx.h".
11 #include "wx/wxprec.h"
12
13 #include "wx/dialog.h"
14
15 #ifndef WX_PRECOMP
16 #include "wx/cursor.h"
17 #endif // WX_PRECOMP
18
19 #include "wx/evtloop.h"
20
21 #include <gtk/gtk.h>
22
23 // this is defined in src/gtk/toplevel.cpp
24 extern int wxOpenModalDialogsCount;
25
26 //-----------------------------------------------------------------------------
27 // wxDialog
28 //-----------------------------------------------------------------------------
29
30 IMPLEMENT_DYNAMIC_CLASS(wxDialog,wxTopLevelWindow)
31
32 void wxDialog::Init()
33 {
34 m_returnCode = 0;
35 m_modalShowing = false;
36 m_themeEnabled = true;
37 }
38
39 wxDialog::wxDialog( wxWindow *parent,
40 wxWindowID id, const wxString &title,
41 const wxPoint &pos, const wxSize &size,
42 long style, const wxString &name )
43 {
44 Init();
45
46 (void)Create( parent, id, title, pos, size, style, name );
47 }
48
49 bool wxDialog::Create( wxWindow *parent,
50 wxWindowID id, const wxString &title,
51 const wxPoint &pos, const wxSize &size,
52 long style, const wxString &name )
53 {
54 SetExtraStyle(GetExtraStyle() | wxTOPLEVEL_EX_DIALOG);
55
56 // all dialogs should have tab traversal enabled
57 style |= wxTAB_TRAVERSAL;
58
59 return wxTopLevelWindow::Create(parent, id, title, pos, size, style, name);
60 }
61
62 bool wxDialog::Show( bool show )
63 {
64 if (!show && IsModal())
65 {
66 EndModal( wxID_CANCEL );
67 }
68
69 if (show && CanDoLayoutAdaptation())
70 DoLayoutAdaptation();
71
72 bool ret = wxDialogBase::Show(show);
73
74 if (show)
75 InitDialog();
76
77 return ret;
78 }
79
80 wxDialog::~wxDialog()
81 {
82 m_isBeingDeleted = true;
83
84 // if the dialog is modal, this will end its event loop
85 if ( IsModal() )
86 EndModal(wxID_CANCEL);
87 }
88
89 bool wxDialog::IsModal() const
90 {
91 return m_modalShowing;
92 }
93
94 void wxDialog::SetModal( bool WXUNUSED(flag) )
95 {
96 wxFAIL_MSG( wxT("wxDialog:SetModal obsolete now") );
97 }
98
99 int wxDialog::ShowModal()
100 {
101 if (IsModal())
102 {
103 wxFAIL_MSG( wxT("wxDialog:ShowModal called twice") );
104 return GetReturnCode();
105 }
106
107 // release the mouse if it's currently captured as the window having it
108 // will be disabled when this dialog is shown -- but will still keep the
109 // capture making it impossible to do anything in the modal dialog itself
110 wxWindow * const win = wxWindow::GetCapture();
111 if ( win )
112 win->GTKReleaseMouseAndNotify();
113
114 // use the apps top level window as parent if none given unless explicitly
115 // forbidden
116 if ( !GetParent() && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) )
117 {
118 wxWindow * const parent = GetParentForModalDialog();
119 if ( parent && parent != this )
120 {
121 gtk_window_set_transient_for( GTK_WINDOW(m_widget),
122 GTK_WINDOW(parent->m_widget) );
123 }
124 }
125
126 wxBusyCursorSuspender cs; // temporarily suppress the busy cursor
127
128 Show( true );
129
130 m_modalShowing = true;
131
132 wxOpenModalDialogsCount++;
133
134 // NOTE: gtk_window_set_modal internally calls gtk_grab_add() !
135 gtk_window_set_modal(GTK_WINDOW(m_widget), TRUE);
136
137 wxGUIEventLoop().Run();
138
139 gtk_window_set_modal(GTK_WINDOW(m_widget), FALSE);
140
141 wxOpenModalDialogsCount--;
142
143 return GetReturnCode();
144 }
145
146 void wxDialog::EndModal( int retCode )
147 {
148 SetReturnCode( retCode );
149
150 if (!IsModal())
151 {
152 wxFAIL_MSG( "either wxDialog:EndModal called twice or ShowModal wasn't called" );
153 return;
154 }
155
156 m_modalShowing = false;
157
158 gtk_main_quit();
159
160 Show( false );
161 }