]> git.saurik.com Git - wxWidgets.git/blame - src/gtk/filepicker.cpp
Add doc for wxGraphicsContext.Create(), which is a lightweight context with no target...
[wxWidgets.git] / src / gtk / filepicker.cpp
CommitLineData
ec376c8f
VZ
1/////////////////////////////////////////////////////////////////////////////
2// Name: src/gtk/filepicker.cpp
3// Purpose: implementation of wxFileButton and wxDirButton
4// Author: Francesco Montorsi
5// Modified By:
6// Created: 15/04/2006
7// Id: $Id$
8// Copyright: (c) Francesco Montorsi
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12
13// ----------------------------------------------------------------------------
14// headers
15// ----------------------------------------------------------------------------
16
17// For compilers that support precompilation, includes "wx.h".
18#include "wx/wxprec.h"
19
4e621d24 20#if wxUSE_FILEPICKERCTRL
4ce7b1e4 21
ec376c8f 22#include "wx/filepicker.h"
c757b5fe 23#include "wx/tooltip.h"
ec376c8f 24
9dc44eff 25#include <gtk/gtk.h>
e808cf8a 26#include "wx/gtk/private.h"
ec376c8f
VZ
27
28// ============================================================================
29// implementation
30// ============================================================================
31
ec376c8f
VZ
32//-----------------------------------------------------------------------------
33// wxFileButton
34//-----------------------------------------------------------------------------
35
36IMPLEMENT_DYNAMIC_CLASS(wxFileButton, wxButton)
37
38bool wxFileButton::Create( wxWindow *parent, wxWindowID id,
39 const wxString &label, const wxString &path,
40 const wxString &message, const wxString &wildcard,
41 const wxPoint &pos, const wxSize &size,
42 long style, const wxValidator& validator,
43 const wxString &name )
44{
4db37208
VZ
45 // we can't use the native button for wxFLP_SAVE pickers as it can only
46 // open existing files and there is no way to create a new file using it
4e621d24 47 if (!(style & wxFLP_SAVE) && !(style & wxFLP_USE_TEXTCTRL))
ec376c8f 48 {
77d82770 49 // VERY IMPORTANT: this code is identical to relative code in wxDirButton;
a65ffcb2 50 // if you find a problem here, fix it also in wxDirButton !
ec376c8f 51
ec376c8f
VZ
52 if (!PreCreation( parent, pos, size ) ||
53 !wxControl::CreateBase(parent, id, pos, size, style & wxWINDOW_STYLE_MASK,
54 validator, name))
55 {
56 wxFAIL_MSG( wxT("wxFileButton creation failed") );
57 return false;
58 }
59
60 // create the dialog associated with this button
556151f5
MW
61 // NB: unlike generic implementation, native GTK implementation needs to create
62 // the filedialog here as it needs to use gtk_file_chooser_button_new_with_dialog()
ec376c8f
VZ
63 SetWindowStyle(style);
64 m_path = path;
556151f5
MW
65 m_message = message;
66 m_wildcard = wildcard;
67 if ((m_dialog = CreateDialog()) == NULL)
ec376c8f 68 return false;
03647350 69
ec376c8f
VZ
70 // little trick used to avoid problems when there are other GTK windows 'grabbed':
71 // GtkFileChooserDialog won't be responsive to user events if there is another
72 // window which called gtk_grab_add (and this happens if e.g. a wxDialog is running
73 // in modal mode in the application - see wxDialogGTK::ShowModal).
74 // An idea could be to put the grab on the m_dialog->m_widget when the GtkFileChooserButton
75 // is clicked and then remove it as soon as the user closes the dialog itself.
76 // Unfortunately there's no way to hook in the 'clicked' event of the GtkFileChooserButton,
77 // thus we add grab on m_dialog->m_widget when it's shown and remove it when it's
78 // hidden simply using its "show" and "hide" events - clean & simple :)
79 g_signal_connect(m_dialog->m_widget, "show", G_CALLBACK(gtk_grab_add), NULL);
80 g_signal_connect(m_dialog->m_widget, "hide", G_CALLBACK(gtk_grab_remove), NULL);
81
ec376c8f
VZ
82 // use as label the currently selected file
83 m_widget = gtk_file_chooser_button_new_with_dialog( m_dialog->m_widget );
9ff9d30c 84 g_object_ref(m_widget);
ec376c8f
VZ
85
86 // we need to know when the dialog has been dismissed clicking OK...
87 // NOTE: the "clicked" signal is not available for a GtkFileChooserButton
88 // thus we are forced to use wxFileDialog's event
ce7fe42e 89 m_dialog->Connect(wxEVT_BUTTON,
ec376c8f
VZ
90 wxCommandEventHandler(wxFileButton::OnDialogOK),
91 NULL, this);
92
93 m_parent->DoAddChild( this );
94
95 PostCreation(size);
170acdc9 96 SetInitialSize(size);
ec376c8f
VZ
97 }
98 else
99 return wxGenericFileButton::Create(parent, id, label, path, message, wildcard,
100 pos, size, style, validator, name);
101 return true;
102}
103
104wxFileButton::~wxFileButton()
105{
3ca5e2db
VZ
106 if ( m_dialog )
107 {
108 // We need to delete the C++ dialog object here but we shouldn't delete
109 // its widget which is used by our GtkFileChooserButton and will be
110 // deleted by it when it is itself destroyed in our base class dtor. So
111 // take the widget ownership away from the dialog to avoid GTK+ errors
112 // that would happen if GtkFileChooserButton tried to access the
113 // already destroyed dialog widget.
114 g_object_unref(m_dialog->m_widget);
115 m_dialog->m_widget = NULL;
116 delete m_dialog;
117 }
ec376c8f
VZ
118}
119
120void wxFileButton::OnDialogOK(wxCommandEvent& ev)
121{
122 // the wxFileDialog associated with the GtkFileChooserButton has been closed
123 // using the OK button, thus the selected file has changed...
124 if (ev.GetId() == wxID_OK)
125 {
126 // ...update our path
556151f5 127 UpdatePathFromDialog(m_dialog);
ec376c8f
VZ
128
129 // ...and fire an event
ce7fe42e 130 wxFileDirPickerEvent event(wxEVT_FILEPICKER_CHANGED, this, GetId(), m_path);
937013e0 131 HandleWindowEvent(event);
ec376c8f
VZ
132 }
133}
134
58772e49
VZ
135void wxFileButton::SetPath(const wxString &str)
136{
137 m_path = str;
03647350 138
dee059c4
JS
139 if (m_dialog)
140 UpdateDialogPath(m_dialog);
58772e49
VZ
141}
142
75cb911c
VZ
143void wxFileButton::SetInitialDirectory(const wxString& dir)
144{
145 if (m_dialog)
06a41924
VZ
146 {
147 // Only change the directory if the default file name doesn't have any
148 // directory in it, otherwise it takes precedence.
149 if ( m_path.find_first_of(wxFileName::GetPathSeparators()) ==
150 wxString::npos )
151 {
152 static_cast<wxFileDialog*>(m_dialog)->SetDirectory(dir);
153 }
154 }
75cb911c
VZ
155 else
156 wxGenericFileButton::SetInitialDirectory(dir);
157}
158
4e621d24 159#endif // wxUSE_FILEPICKERCTRL
ec376c8f 160
4e621d24 161#if wxUSE_DIRPICKERCTRL
ec376c8f 162
f04f570f 163#ifdef __UNIX__
58772e49 164#include <unistd.h> // chdir
f04f570f 165#endif
58772e49 166
ec376c8f
VZ
167//-----------------------------------------------------------------------------
168// "current-folder-changed"
169//-----------------------------------------------------------------------------
170
171extern "C" {
172static void gtk_dirbutton_currentfolderchanged_callback(GtkFileChooserButton *widget,
173 wxDirButton *p)
174{
175 // update the m_path member of the wxDirButtonGTK
58772e49
VZ
176 // unless the path was changed by wxDirButton::SetPath()
177 if (p->m_bIgnoreNextChange)
178 {
179 p->m_bIgnoreNextChange=false;
180 return;
181 }
ec376c8f
VZ
182 wxASSERT(p);
183
184 // NB: it's important to use gtk_file_chooser_get_filename instead of
185 // gtk_file_chooser_get_current_folder (see GTK docs) !
e808cf8a 186 wxGtkString filename(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(widget)));
77d82770 187 p->GTKUpdatePath(filename);
ec376c8f
VZ
188
189 // since GtkFileChooserButton when used to pick directories also uses a combobox,
190 // maybe that the current folder has been changed but not through the GtkFileChooserDialog
191 // and thus the 'gtk_filedialog_ok_callback' could have not been called...
192 // thus we need to make sure the current working directory is updated if wxDIRP_CHANGE_DIR
193 // style was given.
194 if (p->HasFlag(wxDIRP_CHANGE_DIR))
195 chdir(filename);
ec376c8f
VZ
196
197 // ...and fire an event
ce7fe42e 198 wxFileDirPickerEvent event(wxEVT_DIRPICKER_CHANGED, p, p->GetId(), p->GetPath());
937013e0 199 p->HandleWindowEvent(event);
ec376c8f
VZ
200}
201}
202
203
204//-----------------------------------------------------------------------------
205// wxDirButtonGTK
206//-----------------------------------------------------------------------------
207
208IMPLEMENT_DYNAMIC_CLASS(wxDirButton, wxButton)
209
210bool wxDirButton::Create( wxWindow *parent, wxWindowID id,
211 const wxString &label, const wxString &path,
212 const wxString &message, const wxString &wildcard,
213 const wxPoint &pos, const wxSize &size,
214 long style, const wxValidator& validator,
215 const wxString &name )
216{
4e621d24 217 if (!(style & wxDIRP_USE_TEXTCTRL))
ec376c8f
VZ
218 {
219 // VERY IMPORTANT: this code is identic to relative code in wxFileButton;
220 // if you find a problem here, fix it also in wxFileButton !
221
ec376c8f
VZ
222 if (!PreCreation( parent, pos, size ) ||
223 !wxControl::CreateBase(parent, id, pos, size, style & wxWINDOW_STYLE_MASK,
224 validator, name))
225 {
226 wxFAIL_MSG( wxT("wxDirButtonGTK creation failed") );
227 return false;
228 }
229
230 // create the dialog associated with this button
231 SetWindowStyle(style);
556151f5
MW
232 m_message = message;
233 m_wildcard = wildcard;
234 if ((m_dialog = CreateDialog()) == NULL)
ec376c8f 235 return false;
58772e49 236 SetPath(path);
ec376c8f
VZ
237
238 // little trick used to avoid problems when there are other GTK windows 'grabbed':
239 // GtkFileChooserDialog won't be responsive to user events if there is another
240 // window which called gtk_grab_add (and this happens if e.g. a wxDialog is running
241 // in modal mode in the application - see wxDialogGTK::ShowModal).
242 // An idea could be to put the grab on the m_dialog->m_widget when the GtkFileChooserButton
243 // is clicked and then remove it as soon as the user closes the dialog itself.
244 // Unfortunately there's no way to hook in the 'clicked' event of the GtkFileChooserButton,
245 // thus we add grab on m_dialog->m_widget when it's shown and remove it when it's
246 // hidden simply using its "show" and "hide" events - clean & simple :)
247 g_signal_connect(m_dialog->m_widget, "show", G_CALLBACK(gtk_grab_add), NULL);
248 g_signal_connect(m_dialog->m_widget, "hide", G_CALLBACK(gtk_grab_remove), NULL);
249
250
251 // NOTE: we deliberately ignore the given label as GtkFileChooserButton
252 // use as label the currently selected file
253 m_widget = gtk_file_chooser_button_new_with_dialog( m_dialog->m_widget );
9ff9d30c 254 g_object_ref(m_widget);
ec376c8f 255
ec376c8f
VZ
256 // GtkFileChooserButton signals
257 g_signal_connect(m_widget, "current-folder-changed",
258 G_CALLBACK(gtk_dirbutton_currentfolderchanged_callback), this);
259
260 m_parent->DoAddChild( this );
261
262 PostCreation(size);
170acdc9 263 SetInitialSize(size);
ec376c8f
VZ
264 }
265 else
266 return wxGenericDirButton::Create(parent, id, label, path, message, wildcard,
267 pos, size, style, validator, name);
268 return true;
269}
270
271wxDirButton::~wxDirButton()
272{
05534268 273 delete m_dialog;
ec376c8f
VZ
274}
275
77d82770 276void wxDirButton::GTKUpdatePath(const char *gtkpath)
03647350 277{
77d82770
RR
278 m_path = wxString::FromUTF8(gtkpath);
279}
faaa88e7 280void wxDirButton::SetPath(const wxString& str)
58772e49 281{
faaa88e7
VZ
282 if ( m_path == str )
283 {
284 // don't do anything and especially don't set m_bIgnoreNextChange
285 return;
286 }
287
58772e49
VZ
288 m_path = str;
289
290 // wxDirButton uses the "current-folder-changed" signal which is triggered also
291 // when we set the path on the dialog associated with this button; thus we need
292 // to set the following flag to avoid sending a wxFileDirPickerEvent from this
293 // function (which would be inconsistent with wxFileButton's behaviour and in
294 // general with all wxWidgets control-manipulation functions which do not send events).
295 m_bIgnoreNextChange = true;
296
dee059c4
JS
297 if (m_dialog)
298 UpdateDialogPath(m_dialog);
58772e49
VZ
299}
300
75cb911c
VZ
301void wxDirButton::SetInitialDirectory(const wxString& dir)
302{
303 if (m_dialog)
304 {
305 if (m_path.empty())
306 static_cast<wxDirDialog*>(m_dialog)->SetPath(dir);
307 }
308 else
309 wxGenericDirButton::SetInitialDirectory(dir);
310}
311
4e621d24 312#endif // wxUSE_DIRPICKERCTRL