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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/gtk1/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/app.h" | |
17 | #include "wx/frame.h" | |
18 | #include "wx/cursor.h" | |
19 | #endif // WX_PRECOMP | |
20 | ||
21 | #include "wx/evtloop.h" | |
22 | ||
23 | #include <gdk/gdk.h> | |
24 | #include <gtk/gtk.h> | |
25 | #include <gdk/gdkkeysyms.h> | |
26 | ||
27 | #include "wx/gtk1/win_gtk.h" | |
28 | ||
29 | //----------------------------------------------------------------------------- | |
30 | // global data | |
31 | //----------------------------------------------------------------------------- | |
32 | ||
33 | extern int g_openDialogs; | |
34 | ||
35 | //----------------------------------------------------------------------------- | |
36 | // wxDialog | |
37 | //----------------------------------------------------------------------------- | |
38 | ||
39 | BEGIN_EVENT_TABLE(wxDialog,wxDialogBase) | |
40 | EVT_BUTTON (wxID_OK, wxDialog::OnOK) | |
41 | EVT_BUTTON (wxID_CANCEL, wxDialog::OnCancel) | |
42 | EVT_BUTTON (wxID_APPLY, wxDialog::OnApply) | |
43 | EVT_CLOSE (wxDialog::OnCloseWindow) | |
44 | END_EVENT_TABLE() | |
45 | ||
46 | IMPLEMENT_DYNAMIC_CLASS(wxDialog,wxTopLevelWindow) | |
47 | ||
48 | void wxDialog::Init() | |
49 | { | |
50 | m_returnCode = 0; | |
51 | m_sizeSet = false; | |
52 | m_modalShowing = false; | |
53 | m_themeEnabled = true; | |
54 | } | |
55 | ||
56 | wxDialog::wxDialog( wxWindow *parent, | |
57 | wxWindowID id, const wxString &title, | |
58 | const wxPoint &pos, const wxSize &size, | |
59 | long style, const wxString &name ) | |
60 | { | |
61 | Init(); | |
62 | ||
63 | (void)Create( parent, id, title, pos, size, style, name ); | |
64 | } | |
65 | ||
66 | bool wxDialog::Create( wxWindow *parent, | |
67 | wxWindowID id, const wxString &title, | |
68 | const wxPoint &pos, const wxSize &size, | |
69 | long style, const wxString &name ) | |
70 | { | |
71 | SetExtraStyle(GetExtraStyle() | wxTOPLEVEL_EX_DIALOG); | |
72 | ||
73 | // all dialogs should have tab traversal enabled | |
74 | style |= wxTAB_TRAVERSAL; | |
75 | ||
76 | return wxTopLevelWindow::Create(parent, id, title, pos, size, style, name); | |
77 | } | |
78 | ||
79 | void wxDialog::OnApply( wxCommandEvent &WXUNUSED(event) ) | |
80 | { | |
81 | if (Validate()) | |
82 | TransferDataFromWindow(); | |
83 | } | |
84 | ||
85 | void wxDialog::OnCancel( wxCommandEvent &WXUNUSED(event) ) | |
86 | { | |
87 | if (IsModal()) | |
88 | { | |
89 | EndModal(wxID_CANCEL); | |
90 | } | |
91 | else | |
92 | { | |
93 | SetReturnCode(wxID_CANCEL); | |
94 | Show(false); | |
95 | } | |
96 | } | |
97 | ||
98 | void wxDialog::OnOK( wxCommandEvent &WXUNUSED(event) ) | |
99 | { | |
100 | if (Validate() && TransferDataFromWindow()) | |
101 | { | |
102 | if (IsModal()) | |
103 | { | |
104 | EndModal(wxID_OK); | |
105 | } | |
106 | else | |
107 | { | |
108 | SetReturnCode(wxID_OK); | |
109 | Show(false); | |
110 | } | |
111 | } | |
112 | } | |
113 | ||
114 | void wxDialog::OnPaint( wxPaintEvent& WXUNUSED(event) ) | |
115 | { | |
116 | // yes | |
117 | } | |
118 | ||
119 | void wxDialog::OnCloseWindow(wxCloseEvent& WXUNUSED(event)) | |
120 | { | |
121 | // We'll send a Cancel message by default, | |
122 | // which may close the dialog. | |
123 | // Check for looping if the Cancel event handler calls Close(). | |
124 | ||
125 | // Note that if a cancel button and handler aren't present in the dialog, | |
126 | // nothing will happen when you close the dialog via the window manager, or | |
127 | // via Close(). | |
128 | // We wouldn't want to destroy the dialog by default, since the dialog may have been | |
129 | // created on the stack. | |
130 | // However, this does mean that calling dialog->Close() won't delete the dialog | |
131 | // unless the handler for wxID_CANCEL does so. So use Destroy() if you want to be | |
132 | // sure to destroy the dialog. | |
133 | // The default OnCancel (above) simply ends a modal dialog, and hides a modeless dialog. | |
134 | ||
135 | static wxList s_closing; | |
136 | ||
137 | if (s_closing.Member(this)) | |
138 | return; // no loops | |
139 | ||
140 | s_closing.Append(this); | |
141 | ||
142 | wxCommandEvent cancelEvent(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL); | |
143 | cancelEvent.SetEventObject( this ); | |
144 | GetEventHandler()->ProcessEvent(cancelEvent); | |
145 | s_closing.DeleteObject(this); | |
146 | } | |
147 | ||
148 | bool wxDialog::Show( bool show ) | |
149 | { | |
150 | if (!show && IsModal()) | |
151 | { | |
152 | EndModal( wxID_CANCEL ); | |
153 | } | |
154 | ||
155 | if (show && !m_sizeSet) | |
156 | { | |
157 | /* by calling GtkOnSize here, we don't have to call | |
158 | either after showing the frame, which would entail | |
159 | much ugly flicker nor from within the size_allocate | |
160 | handler, because GTK 1.1.X forbids that. */ | |
161 | ||
162 | GtkOnSize( m_x, m_y, m_width, m_height ); | |
163 | } | |
164 | ||
165 | bool ret = wxWindow::Show( show ); | |
166 | ||
167 | if (show) InitDialog(); | |
168 | ||
169 | return ret; | |
170 | } | |
171 | ||
172 | bool wxDialog::IsModal() const | |
173 | { | |
174 | return m_modalShowing; | |
175 | } | |
176 | ||
177 | void wxDialog::SetModal( bool WXUNUSED(flag) ) | |
178 | { | |
179 | wxFAIL_MSG( wxT("wxDialog:SetModal obsolete now") ); | |
180 | } | |
181 | ||
182 | int wxDialog::ShowModal() | |
183 | { | |
184 | if (IsModal()) | |
185 | { | |
186 | wxFAIL_MSG( wxT("wxDialog:ShowModal called twice") ); | |
187 | return GetReturnCode(); | |
188 | } | |
189 | ||
190 | // use the apps top level window as parent if none given unless explicitly | |
191 | // forbidden | |
192 | if ( !GetParent() && !(GetWindowStyleFlag() & wxDIALOG_NO_PARENT) ) | |
193 | { | |
194 | wxWindow *parent = wxTheApp->GetTopWindow(); | |
195 | if ( parent && | |
196 | parent != this && | |
197 | parent->IsBeingDeleted() && | |
198 | !(parent->GetExtraStyle() & wxWS_EX_TRANSIENT) ) | |
199 | { | |
200 | m_parent = parent; | |
201 | gtk_window_set_transient_for( GTK_WINDOW(m_widget), GTK_WINDOW(parent->m_widget) ); | |
202 | } | |
203 | } | |
204 | ||
205 | wxBusyCursorSuspender cs; // temporarily suppress the busy cursor | |
206 | ||
207 | Show( true ); | |
208 | ||
209 | m_modalShowing = true; | |
210 | ||
211 | g_openDialogs++; | |
212 | ||
213 | gtk_grab_add( m_widget ); | |
214 | ||
215 | wxEventLoop().Run(); | |
216 | ||
217 | gtk_grab_remove( m_widget ); | |
218 | ||
219 | g_openDialogs--; | |
220 | ||
221 | return GetReturnCode(); | |
222 | } | |
223 | ||
224 | void wxDialog::EndModal( int retCode ) | |
225 | { | |
226 | SetReturnCode( retCode ); | |
227 | ||
228 | if (!IsModal()) | |
229 | { | |
230 | wxFAIL_MSG( wxT("wxDialog:EndModal called twice") ); | |
231 | return; | |
232 | } | |
233 | ||
234 | m_modalShowing = false; | |
235 | ||
236 | gtk_main_quit(); | |
237 | ||
238 | Show( false ); | |
239 | } |