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comparison libgui/src/shortcut-manager.cc @ 18611:086093fbdc1a gui-release

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first implementation of a shortcut manager (bug #41217) * file-editor.cc (set_shortcuts): use shortcut-manager to set some shortcuts * main_window.cc (set_global_shortcuts): use shortcut-manager to set some shortcuts; (construct_file_menu): all actions as class variables; (construct_edit_menu): all actions as class variables; * main_window.h: actions as class variables * module.mk: new files shortcut_manager.cc, shortcut_manager.h * octave-gui.cc (octave_start_gui): initialize the shortcut_manager * settings-dialog.cc (constructor): call shortcut-manager for shortcut table (write_changed_settings): call shortcut-manager for writing shortcuts * settings-dialog.ui: new tab with a tree widget for the shortcuts * shortcut_manager.cc (constructor, destructor): new class; (instance_ok): checks if instance is valid, creates a new one otherwise; (do_init_data): initialize the list with all shortcut's data; (init): internal function for initializing the data list; (do_fill_treewidget): fills the tree widget in the settings dialog; (do_write_shortcuts): writes shortcuts from settings dialog into file; (do_set_shortcut): setting the shortcut for an action; (handle_double_clicked): slot for double clicking into the tree widget; (shortcut_dialog): dialog for entering a new shortcut; (shortcut_dialog_finished): processing the dialog's result; (shortcut_dialog_set_default): setting the shortcut to it's default; (enter_shortcut::enter_shortcut): new class derived from QLineEdit; (enter_shortcut::handle_direct_shortcut): switch between normal editing and directly entering a shortcut; (enter_shortcut::keyPressEvent): event handler filtering the shortcuts; * shortcut_manager.h (init_data): static function calling do_init_data; (write_shortcuts): static function calling do_write_shortcuts; (fill_treewidget): static function calling do_fill_treewidget; (set_shortcut): static function calling do_set_shortcut;
author Torsten <ttl@justmail.de>
date Tue, 01 Apr 2014 21:29:48 +0200
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children a827fc5fe59d
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18610:6e81b59d657c 18611:086093fbdc1a
1 /*
2
3 Copyright (C) 2014 Torsten <ttl@justmail.de>
4
5 This file is part of Octave.
6
7 Octave is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the
9 Free Software Foundation; either version 3 of the License, or (at your
10 option) any later version.
11
12 Octave is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with Octave; see the file COPYING. If not, see
19 <http://www.gnu.org/licenses/>.
20
21 */
22
23 #ifdef HAVE_CONFIG_H
24 #include <config.h>
25 #endif
26
27 #include <QMessageBox>
28 #include <QDebug>
29 #include <QGridLayout>
30 #include <QVBoxLayout>
31 #include <QDialogButtonBox>
32 #include <QPushButton>
33 #include <QLineEdit>
34 #include <QCheckBox>
35 #include <QHeaderView>
36 #include <QAction>
37
38 #include "error.h"
39 #include "resource-manager.h"
40 #include "shortcut-manager.h"
41 #include "singleton-cleanup.h"
42
43 shortcut_manager *shortcut_manager::instance = 0;
44
45 shortcut_manager::shortcut_manager ()
46 {
47 setObjectName ("Shortcut_Manager");
48 }
49
50 shortcut_manager::~shortcut_manager ()
51 {
52 }
53
54 bool
55 shortcut_manager::instance_ok (void)
56 {
57 bool retval = true;
58
59 if (! instance)
60 {
61 instance = new shortcut_manager ();
62
63 if (instance)
64 singleton_cleanup_list::add (cleanup_instance);
65 }
66
67 if (! instance)
68 {
69 ::error ("unable to create shortcut_manager object!");
70
71 retval = false;
72 }
73
74 return retval;
75 }
76
77 void
78 shortcut_manager::do_init_data ()
79 {
80 // actions of the main window
81 init (tr ("New File"), "main_file:new_file", QKeySequence::New );
82 init (tr ("New Function"), "main_file:new_function", QKeySequence ("Ctrl+Shift+N") );
83 init (tr ("New Figure"), "main_file:new_figure", QKeySequence () );
84 init (tr ("Open File"), "main_file:open_file", QKeySequence::Open );
85 init (tr ("Load Workspace"), "main_file:load_workspace", QKeySequence () );
86 init (tr ("Save Workspace As"), "main_file:save_workspace", QKeySequence () );
87 init (tr ("Preferences"), "main_file:preferences", QKeySequence () );
88 init (tr ("Exit Octave"), "main_file:exit", QKeySequence::Quit );
89
90 init (tr ("Copy"), "main_edit:copy", QKeySequence::Copy);
91 init (tr ("Paste"), "main_edit:paste", QKeySequence::Paste);
92 init (tr ("Undo"), "main_edit:undo", QKeySequence::Undo);
93 init (tr ("Select All"), "main_edit:select_all", QKeySequence () );
94 init (tr ("Clear Clipboard"), "main_edit:clear_clipboard", QKeySequence () );
95 init (tr ("Find in Files"), "main_edit:find_in_files", QKeySequence (Qt::ControlModifier + Qt::ShiftModifier + Qt::Key_F) );
96 init (tr ("Clear Command Window"), "main_edit:clear_command_window", QKeySequence () );
97 init (tr ("Clear Command History"), "main_edit:clear_history", QKeySequence () );
98 init (tr ("Clear Workspace"), "main_edit:clear_workspace", QKeySequence () );
99
100 // actions of the editor
101 init (tr ("Save File"), "editor_file:save", QKeySequence::Save );
102 init (tr ("Save File As"), "editor_file:save_as", QKeySequence::SaveAs );
103 }
104
105 void
106 shortcut_manager::init (QString description, QString key, QKeySequence def_sc)
107 {
108 QSettings *settings = resource_manager::get_settings ();
109
110 settings->beginGroup ("shortcuts");
111 QKeySequence actual = QKeySequence (settings->value (key, def_sc).toString ());
112 settings->endGroup ();
113
114 shortcut_t shortcut_info;
115 shortcut_info.description = description;
116 shortcut_info.settings_key = key;
117 shortcut_info.actual_sc = actual;
118 shortcut_info.default_sc = def_sc;
119 _sc << shortcut_info;
120
121 if (! actual.isEmpty ())
122 _shortcut_hash[actual] = _sc.count (); // offset of 1 to avoid 0
123 _action_hash[key] = _sc.count (); // offset of 1 to avoid 0
124 }
125
126 void
127 shortcut_manager::do_fill_treewidget (QTreeWidget *tree_view)
128 {
129 _dialog = 0;
130 _level_hash.clear ();
131
132 tree_view->header ()->setResizeMode (QHeaderView::ResizeToContents);
133
134 QTreeWidgetItem *main = new QTreeWidgetItem (tree_view);
135 main->setText (0, tr ("Main"));
136 main->setExpanded (true);
137 QTreeWidgetItem *main_file = new QTreeWidgetItem (main);
138 main_file->setText (0, tr ("File"));
139 QTreeWidgetItem *main_edit = new QTreeWidgetItem (main);
140 main_edit->setText (0, tr ("Edit"));
141 QTreeWidgetItem *main_debug = new QTreeWidgetItem (main);
142 main_debug->setText (0, tr ("Debug"));
143 QTreeWidgetItem *main_window = new QTreeWidgetItem (main);
144 main_window->setText (0, tr ("Window"));
145 QTreeWidgetItem *main_help = new QTreeWidgetItem (main);
146 main_help->setText (0, tr ("Help"));
147 QTreeWidgetItem *main_news = new QTreeWidgetItem (main);
148 main_news->setText (0, tr ("News"));
149
150 _level_hash["main_file"] = main_file;
151 _level_hash["main_edit"] = main_edit;
152 _level_hash["main_debug"] = main_debug;
153 _level_hash["main_window"] = main_window;
154 _level_hash["main_help"] = main_help;
155 _level_hash["main_news"] = main_news;
156
157 QTreeWidgetItem *editor = new QTreeWidgetItem (tree_view);
158 editor->setText (0, tr ("Editor"));
159 editor->setExpanded (true);
160 QTreeWidgetItem *editor_file = new QTreeWidgetItem (editor);
161 editor_file->setText (0, tr ("File"));
162 QTreeWidgetItem *editor_edit = new QTreeWidgetItem (editor);
163 editor_edit->setText (0, tr ("Edit"));
164 QTreeWidgetItem *editor_view = new QTreeWidgetItem (editor);
165 editor_view->setText (0, tr ("View"));
166 QTreeWidgetItem *editor_debug = new QTreeWidgetItem (editor);
167 editor_debug->setText (0, tr ("Debug"));
168 QTreeWidgetItem *editor_run = new QTreeWidgetItem (editor);
169 editor_run->setText (0, tr ("Run"));
170 QTreeWidgetItem *editor_help = new QTreeWidgetItem (editor);
171 editor_help->setText (0, tr ("Help"));
172
173 _level_hash["editor_file"] = editor_file;
174 _level_hash["editor_edit"] = editor_edit;
175 _level_hash["editor_view"] = editor_view;
176 _level_hash["editor_debug"] = editor_debug;
177 _level_hash["editor_run"] = editor_run;
178 _level_hash["editor_help"] = editor_help;
179
180 connect (tree_view, SIGNAL (itemDoubleClicked (QTreeWidgetItem*, int)),
181 this, SLOT (handle_double_clicked (QTreeWidgetItem*, int)));
182
183 for (int i = 0; i < _sc.count (); i++)
184 {
185 shortcut_t shortcut_info = _sc.at (i);
186
187 QTreeWidgetItem* section = _level_hash[shortcut_info.settings_key.section(':',0,0)];
188 QTreeWidgetItem* tree_item = new QTreeWidgetItem (section);
189
190 tree_item->setText (0, shortcut_info.description);
191 tree_item->setText (1, shortcut_info.default_sc);
192 tree_item->setText (2, shortcut_info.actual_sc);
193
194 _item_index_hash[tree_item] = i + 1; // index+1 to avoid 0
195 _index_item_hash[i] = tree_item;
196 }
197 }
198
199 void
200 shortcut_manager::do_write_shortcuts ()
201 {
202 QSettings *settings = resource_manager::get_settings ();
203
204 settings->beginGroup ("shortcuts");
205 for (int i = 0; i < _sc.count (); i++)
206 settings->setValue(_sc.at (i).settings_key, _sc.at (i).actual_sc.toString ());
207 settings->endGroup ();
208
209 settings->sync ();
210
211 delete _dialog;
212 }
213
214 void
215 shortcut_manager::do_set_shortcut (QAction* action, const QString& key)
216 {
217 QSettings *settings = resource_manager::get_settings ();
218
219 int index = _action_hash[key] - 1;
220
221 action->setShortcut (
222 settings->value ("shortcuts/" + key, _sc.at (index).default_sc).toString ());
223 }
224
225 void
226 shortcut_manager::handle_double_clicked (QTreeWidgetItem* item, int)
227 {
228 int i = _item_index_hash[item];
229 if (i == 0)
230 return; // top-level-item clicked
231
232 shortcut_dialog (i-1); // correct to index starting at 0
233 }
234
235 void
236 shortcut_manager::shortcut_dialog (int index)
237 {
238 if (! _dialog)
239 {
240 _dialog = new QDialog (this);
241
242 _dialog->setWindowTitle (tr ("Enter new Shortcut"));
243
244 QVBoxLayout *box = new QVBoxLayout(_dialog);
245
246 QLabel *help = new QLabel (tr ("Apply the desired shortcut or click "
247 "on the right button to reset the "
248 "shortcut to its default."));
249 help->setWordWrap (true);
250 box->addWidget (help);
251
252 QCheckBox *direct = new QCheckBox (tr ("Enter shortcut directly by performing it"));
253 direct->setCheckState (Qt::Checked);
254 box->addWidget (direct);
255
256 QGridLayout *grid = new QGridLayout();
257
258 QLabel *actual = new QLabel (tr ("Actual shortcut"));
259 _edit_actual = new enter_shortcut (_dialog);
260 _edit_actual->setAlignment (Qt::AlignHCenter);
261 grid->addWidget (actual, 0, 0);
262 grid->addWidget (_edit_actual, 0, 1);
263
264 QLabel *def = new QLabel (tr ("Default shortcut"));
265 _label_default = new QLabel (_dialog);
266 _label_default->setAlignment (Qt::AlignHCenter);
267 grid->addWidget (def, 1, 0);
268 grid->addWidget (_label_default, 1, 1);
269
270 QPushButton *set_default = new QPushButton (tr ("Set to default"));
271 grid->addWidget (set_default, 0, 2);
272 connect (set_default, SIGNAL (clicked ()),
273 this, SLOT (shortcut_dialog_set_default ()));
274
275 box->addLayout (grid);
276
277 QDialogButtonBox *button_box = new QDialogButtonBox (QDialogButtonBox::Ok
278 | QDialogButtonBox::Cancel);
279 QList<QAbstractButton *> buttons = button_box->buttons ();
280 for (int i = 0; i < buttons.count (); i++)
281 buttons.at (i)->setShortcut (QKeySequence ());
282 connect(button_box, SIGNAL (accepted ()), _dialog, SLOT (accept ()));
283 connect(button_box, SIGNAL (rejected ()), _dialog, SLOT (reject ()));
284 box->addWidget (button_box);
285
286 _dialog->setLayout (box);
287
288 connect (direct, SIGNAL (stateChanged (int)),
289 _edit_actual, SLOT (handle_direct_shortcut (int)));
290 connect (_dialog, SIGNAL (finished (int)),
291 this, SLOT (shortcut_dialog_finished (int)));
292
293 }
294
295 _edit_actual->setText (_sc.at (index).actual_sc);
296 _label_default->setText (_sc.at (index).default_sc);
297 _handled_index = index;
298
299 _edit_actual->setFocus ();
300 _dialog->setFocusProxy (_edit_actual);
301 _dialog->exec ();
302 }
303
304 void
305 shortcut_manager::shortcut_dialog_finished (int result)
306 {
307 if (result == QDialog::Rejected)
308 return;
309
310 int double_index = _shortcut_hash[_edit_actual->text()] - 1;
311
312 if (double_index >= 0 && double_index != _handled_index)
313 {
314 int ret = QMessageBox::warning(this, tr("Double Shortcut"),
315 tr ("The chosen shortcut\n \"%1\"\n"
316 "is already used for the action\n \"%2\".\n"
317 "Do you want to use the shortcut anyhow removing it "
318 "from the previous action?")
319 .arg (_edit_actual->text())
320 .arg (_sc.at (double_index).description),
321 QMessageBox::Yes | QMessageBox::No, QMessageBox::Yes);
322
323 if (ret == QMessageBox::Yes)
324 {
325 shortcut_t double_shortcut = _sc.at (double_index);
326 double_shortcut.actual_sc = QKeySequence ();
327 _sc.replace (double_index, double_shortcut);
328 _index_item_hash[double_index]->setText (1, QKeySequence ());
329 }
330 else
331 return;
332 }
333
334 shortcut_t shortcut = _sc.at (_handled_index);
335 if (! shortcut.actual_sc.isEmpty ())
336 _shortcut_hash.remove (shortcut.actual_sc);
337 shortcut.actual_sc = _edit_actual->text();
338 _sc.replace (_handled_index, shortcut);
339
340 _index_item_hash[_handled_index]->setText (2, shortcut.actual_sc);
341
342 if (! shortcut.actual_sc.isEmpty ())
343 _shortcut_hash[shortcut.actual_sc] = _handled_index + 1; // index+1 to avoid 0
344 }
345
346 void
347 shortcut_manager::shortcut_dialog_set_default ()
348 {
349 _edit_actual->setText (_label_default->text ());
350 }
351
352
353
354 enter_shortcut::enter_shortcut (QWidget *p) : QLineEdit (p)
355 {
356 _direct_shortcut = true;
357 }
358
359 enter_shortcut::~enter_shortcut ()
360 {
361 }
362
363 void
364 enter_shortcut::handle_direct_shortcut (int state)
365 {
366 if (state)
367 _direct_shortcut = true;
368 else
369 _direct_shortcut = false;
370 }
371
372 void
373 enter_shortcut::keyPressEvent (QKeyEvent *e)
374 {
375 if (! _direct_shortcut)
376 {
377 QLineEdit::keyPressEvent (e);
378 return;
379 }
380
381 if (e->type () == QEvent::KeyPress)
382 {
383 int key = e->key ();
384
385 if (key == Qt::Key_unknown || key == 0 || key >= 16777248)
386 return;
387
388 Qt::KeyboardModifiers modifiers = e->modifiers ();
389
390 if(modifiers & Qt::ShiftModifier)
391 key += Qt::SHIFT;
392 if(modifiers & Qt::ControlModifier)
393 key += Qt::CTRL;
394 if(modifiers & Qt::AltModifier)
395 key += Qt::ALT;
396 if(modifiers & Qt::MetaModifier)
397 key += Qt::META;
398
399 setText (QKeySequence(key));
400 }
401 }
402