source: trunk/examples/tutorials/addressbook/part7/addressbook.cpp@ 5

Last change on this file since 5 was 2, checked in by Dmitry A. Kuminov, 16 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.
File size: 13.5 KB
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1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information ([email protected])
5**
6** This file is part of the examples of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial Usage
10** Licensees holding valid Qt Commercial licenses may use this file in
11** accordance with the Qt Commercial License Agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and Nokia.
14**
15** GNU Lesser General Public License Usage
16** Alternatively, this file may be used under the terms of the GNU Lesser
17** General Public License version 2.1 as published by the Free Software
18** Foundation and appearing in the file LICENSE.LGPL included in the
19** packaging of this file. Please review the following information to
20** ensure the GNU Lesser General Public License version 2.1 requirements
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24** additional rights. These rights are described in the Nokia Qt LGPL
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26** package.
27**
28** GNU General Public License Usage
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30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
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36** If you are unsure which license is appropriate for your use, please
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38** $QT_END_LICENSE$
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40****************************************************************************/
41
42#include <QtGui>
43#include "addressbook.h"
44
45AddressBook::AddressBook(QWidget *parent)
46 : QWidget(parent)
47{
48 QLabel *nameLabel = new QLabel(tr("Name:"));
49 nameLine = new QLineEdit;
50 nameLine->setReadOnly(true);
51
52 QLabel *addressLabel = new QLabel(tr("Address:"));
53 addressText = new QTextEdit;
54 addressText->setReadOnly(true);
55
56 addButton = new QPushButton(tr("&Add"));
57
58 editButton = new QPushButton(tr("&Edit"));
59 editButton->setEnabled(false);
60 removeButton = new QPushButton(tr("&Remove"));
61 removeButton->setEnabled(false);
62 findButton = new QPushButton(tr("&Find"));
63 findButton->setEnabled(false);
64 submitButton = new QPushButton(tr("&Submit"));
65 submitButton->hide();
66 cancelButton = new QPushButton(tr("&Cancel"));
67 cancelButton->hide();
68
69 nextButton = new QPushButton(tr("&Next"));
70 nextButton->setEnabled(false);
71 previousButton = new QPushButton(tr("&Previous"));
72 previousButton->setEnabled(false);
73
74 loadButton = new QPushButton(tr("&Load..."));
75 loadButton->setToolTip(tr("Load contacts from a file"));
76 saveButton = new QPushButton(tr("Sa&ve..."));
77 saveButton->setToolTip(tr("Save contacts to a file"));
78 saveButton->setEnabled(false);
79
80 exportButton = new QPushButton(tr("E&xport"));
81 exportButton->setToolTip(tr("Export as vCard"));
82 exportButton->setEnabled(false);
83
84 dialog = new FindDialog;
85
86 connect(addButton, SIGNAL(clicked()), this, SLOT(addContact()));
87 connect(submitButton, SIGNAL(clicked()), this, SLOT(submitContact()));
88 connect(editButton, SIGNAL(clicked()), this, SLOT(editContact()));
89 connect(cancelButton, SIGNAL(clicked()), this, SLOT(cancel()));
90 connect(removeButton, SIGNAL(clicked()), this, SLOT(removeContact()));
91 connect(findButton, SIGNAL(clicked()), this, SLOT(findContact()));
92 connect(nextButton, SIGNAL(clicked()), this, SLOT(next()));
93 connect(previousButton, SIGNAL(clicked()), this, SLOT(previous()));
94 connect(loadButton, SIGNAL(clicked()), this, SLOT(loadFromFile()));
95 connect(saveButton, SIGNAL(clicked()), this, SLOT(saveToFile()));
96 connect(exportButton, SIGNAL(clicked()), this, SLOT(exportAsVCard()));
97
98 QVBoxLayout *buttonLayout1 = new QVBoxLayout;
99 buttonLayout1->addWidget(addButton);
100 buttonLayout1->addWidget(editButton);
101 buttonLayout1->addWidget(removeButton);
102 buttonLayout1->addWidget(findButton);
103 buttonLayout1->addWidget(submitButton);
104 buttonLayout1->addWidget(cancelButton);
105 buttonLayout1->addWidget(loadButton);
106 buttonLayout1->addWidget(saveButton);
107 buttonLayout1->addWidget(exportButton);
108 buttonLayout1->addStretch();
109
110 QHBoxLayout *buttonLayout2 = new QHBoxLayout;
111 buttonLayout2->addWidget(previousButton);
112 buttonLayout2->addWidget(nextButton);
113
114 QGridLayout *mainLayout = new QGridLayout;
115 mainLayout->addWidget(nameLabel, 0, 0);
116 mainLayout->addWidget(nameLine, 0, 1);
117 mainLayout->addWidget(addressLabel, 1, 0, Qt::AlignTop);
118 mainLayout->addWidget(addressText, 1, 1);
119 mainLayout->addLayout(buttonLayout1, 1, 2);
120 mainLayout->addLayout(buttonLayout2, 2, 1);
121
122 setLayout(mainLayout);
123 setWindowTitle(tr("Simple Address Book"));
124}
125
126void AddressBook::addContact()
127{
128 oldName = nameLine->text();
129 oldAddress = addressText->toPlainText();
130
131 nameLine->clear();
132 addressText->clear();
133
134 updateInterface(AddingMode);
135}
136
137void AddressBook::editContact()
138{
139 oldName = nameLine->text();
140 oldAddress = addressText->toPlainText();
141
142 updateInterface(EditingMode);
143}
144
145void AddressBook::submitContact()
146{
147 QString name = nameLine->text();
148 QString address = addressText->toPlainText();
149
150 if (name == "" || address == "") {
151 QMessageBox::information(this, tr("Empty Field"),
152 tr("Please enter a name and address."));
153 return;
154 }
155
156 if (currentMode == AddingMode) {
157
158 if (!contacts.contains(name)) {
159 contacts.insert(name, address);
160 QMessageBox::information(this, tr("Add Successful"),
161 tr("\"%1\" has been added to your address book.").arg(name));
162 } else {
163 QMessageBox::information(this, tr("Add Unsuccessful"),
164 tr("Sorry, \"%1\" is already in your address book.").arg(name));
165 return;
166 }
167 } else if (currentMode == EditingMode) {
168
169 if (oldName != name) {
170 if (!contacts.contains(name)) {
171 QMessageBox::information(this, tr("Edit Successful"),
172 tr("\"%1\" has been edited in your address book.").arg(oldName));
173 contacts.remove(oldName);
174 contacts.insert(name, address);
175 } else {
176 QMessageBox::information(this, tr("Edit Unsuccessful"),
177 tr("Sorry, \"%1\" is already in your address book.").arg(name));
178 return;
179 }
180 } else if (oldAddress != address) {
181 QMessageBox::information(this, tr("Edit Successful"),
182 tr("\"%1\" has been edited in your address book.").arg(name));
183 contacts[name] = address;
184 }
185 }
186
187 updateInterface(NavigationMode);
188}
189
190void AddressBook::cancel()
191{
192 nameLine->setText(oldName);
193 addressText->setText(oldAddress);
194 updateInterface(NavigationMode);
195}
196
197void AddressBook::removeContact()
198{
199 QString name = nameLine->text();
200 QString address = addressText->toPlainText();
201
202 if (contacts.contains(name)) {
203
204 int button = QMessageBox::question(this,
205 tr("Confirm Remove"),
206 tr("Are you sure you want to remove \"%1\"?").arg(name),
207 QMessageBox::Yes | QMessageBox::No);
208
209 if (button == QMessageBox::Yes) {
210
211 previous();
212 contacts.remove(name);
213
214 QMessageBox::information(this, tr("Remove Successful"),
215 tr("\"%1\" has been removed from your address book.").arg(name));
216 }
217 }
218
219 updateInterface(NavigationMode);
220}
221
222void AddressBook::next()
223{
224 QString name = nameLine->text();
225 QMap<QString, QString>::iterator i = contacts.find(name);
226
227 if (i != contacts.end())
228 i++;
229
230 if (i == contacts.end())
231 i = contacts.begin();
232
233 nameLine->setText(i.key());
234 addressText->setText(i.value());
235}
236
237void AddressBook::previous()
238{
239 QString name = nameLine->text();
240 QMap<QString, QString>::iterator i = contacts.find(name);
241
242 if (i == contacts.end()) {
243 nameLine->clear();
244 addressText->clear();
245 return;
246 }
247
248 if (i == contacts.begin())
249 i = contacts.end();
250
251 i--;
252 nameLine->setText(i.key());
253 addressText->setText(i.value());
254}
255
256void AddressBook::findContact()
257{
258 dialog->show();
259
260 if (dialog->exec() == 1) {
261 QString contactName = dialog->getFindText();
262
263 if (contacts.contains(contactName)) {
264 nameLine->setText(contactName);
265 addressText->setText(contacts.value(contactName));
266 } else {
267 QMessageBox::information(this, tr("Contact Not Found"),
268 tr("Sorry, \"%1\" is not in your address book.").arg(contactName));
269 return;
270 }
271 }
272
273 updateInterface(NavigationMode);
274}
275void AddressBook::updateInterface(Mode mode)
276{
277 currentMode = mode;
278
279 switch (currentMode) {
280
281 case AddingMode:
282 case EditingMode:
283
284 nameLine->setReadOnly(false);
285 nameLine->setFocus(Qt::OtherFocusReason);
286 addressText->setReadOnly(false);
287
288 addButton->setEnabled(false);
289 editButton->setEnabled(false);
290 removeButton->setEnabled(false);
291
292 nextButton->setEnabled(false);
293 previousButton->setEnabled(false);
294
295 submitButton->show();
296 cancelButton->show();
297
298 loadButton->setEnabled(false);
299 saveButton->setEnabled(false);
300 exportButton->setEnabled(false);
301 break;
302
303 case NavigationMode:
304
305 if (contacts.isEmpty()) {
306 nameLine->clear();
307 addressText->clear();
308 }
309
310 nameLine->setReadOnly(true);
311 addressText->setReadOnly(true);
312 addButton->setEnabled(true);
313
314 int number = contacts.size();
315 editButton->setEnabled(number >= 1);
316 removeButton->setEnabled(number >= 1);
317 findButton->setEnabled(number > 2);
318 nextButton->setEnabled(number > 1);
319 previousButton->setEnabled(number > 1);
320
321 submitButton->hide();
322 cancelButton->hide();
323
324 exportButton->setEnabled(number >= 1);
325
326 loadButton->setEnabled(true);
327 saveButton->setEnabled(number >= 1);
328 break;
329 }
330}
331
332void AddressBook::saveToFile()
333{
334 QString fileName = QFileDialog::getSaveFileName(this,
335 tr("Save Address Book"), "",
336 tr("Address Book (*.abk);;All Files (*)"));
337
338 if (fileName.isEmpty())
339 return;
340 else {
341 QFile file(fileName);
342
343 if (!file.open(QIODevice::WriteOnly)) {
344 QMessageBox::information(this, tr("Unable to open file"),
345 file.errorString());
346 return;
347 }
348
349 QDataStream out(&file);
350 out.setVersion(QDataStream::Qt_4_3);
351 out << contacts;
352 }
353
354 updateInterface(NavigationMode);
355}
356
357void AddressBook::loadFromFile()
358{
359 QString fileName = QFileDialog::getOpenFileName(this,
360 tr("Open Address Book"), "",
361 tr("Address Book (*.abk);;All Files (*)"));
362
363 if (fileName.isEmpty())
364 return;
365 else {
366 QFile file(fileName);
367
368 if (!file.open(QIODevice::ReadOnly)) {
369 QMessageBox::information(this, tr("Unable to open file"),
370 file.errorString());
371 return;
372 }
373
374 QDataStream in(&file);
375 in.setVersion(QDataStream::Qt_4_3);
376 contacts.empty(); // empty existing contacts
377 in >> contacts;
378
379 QMap<QString, QString>::iterator i = contacts.begin();
380 nameLine->setText(i.key());
381 addressText->setText(i.value());
382 }
383
384 updateInterface(NavigationMode);
385}
386
387//! [export function part1]
388void AddressBook::exportAsVCard()
389{
390 QString name = nameLine->text();
391 QString address = addressText->toPlainText();
392 QString firstName;
393 QString lastName;
394 QStringList nameList;
395
396 int index = name.indexOf(" ");
397
398 if (index != -1) {
399 nameList = name.split(QRegExp("\\s+"), QString::SkipEmptyParts);
400 firstName = nameList.first();
401 lastName = nameList.last();
402 } else {
403 firstName = name;
404 lastName = "";
405 }
406
407 QString fileName = QFileDialog::getSaveFileName(this,
408 tr("Export Contact"), "",
409 tr("vCard Files (*.vcf);;All Files (*)"));
410
411 if (fileName.isEmpty())
412 return;
413
414 QFile file(fileName);
415//! [export function part1]
416
417//! [export function part2]
418 if (!file.open(QIODevice::WriteOnly)) {
419 QMessageBox::information(this, tr("Unable to open file"),
420 file.errorString());
421 return;
422 }
423
424 QTextStream out(&file);
425//! [export function part2]
426
427//! [export function part3]
428 out << "BEGIN:VCARD" << "\n";
429 out << "VERSION:2.1" << "\n";
430 out << "N:" << lastName << ";" << firstName << "\n";
431
432 if (!nameList.isEmpty())
433 out << "FN:" << nameList.join(" ") << "\n";
434 else
435 out << "FN:" << firstName << "\n";
436//! [export function part3]
437
438//! [export function part4]
439 address.replace(";", "\\;", Qt::CaseInsensitive);
440 address.replace("\n", ";", Qt::CaseInsensitive);
441 address.replace(",", " ", Qt::CaseInsensitive);
442
443 out << "ADR;HOME:;" << address << "\n";
444 out << "END:VCARD" << "\n";
445
446 QMessageBox::information(this, tr("Export Successful"),
447 tr("\"%1\" has been exported as a vCard.").arg(name));
448}
449//! [export function part4]
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