author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 18 Aug 2010 10:37:55 +0300 | |
changeset 33 | 3e2da88830cd |
parent 30 | 5dc02b23752f |
permissions | -rw-r--r-- |
0 | 1 |
/**************************************************************************** |
2 |
** |
|
18
2f34d5167611
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
3 |
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
0 | 4 |
** All rights reserved. |
5 |
** Contact: Nokia Corporation (qt-info@nokia.com) |
|
6 |
** |
|
7 |
** This file is part of the examples of the Qt Toolkit. |
|
8 |
** |
|
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
9 |
** $QT_BEGIN_LICENSE:BSD$ |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
10 |
** You may use this file under the terms of the BSD license as follows: |
0 | 11 |
** |
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
12 |
** "Redistribution and use in source and binary forms, with or without |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
13 |
** modification, are permitted provided that the following conditions are |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
14 |
** met: |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
15 |
** * Redistributions of source code must retain the above copyright |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
16 |
** notice, this list of conditions and the following disclaimer. |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
17 |
** * Redistributions in binary form must reproduce the above copyright |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
18 |
** notice, this list of conditions and the following disclaimer in |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
19 |
** the documentation and/or other materials provided with the |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
20 |
** distribution. |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
21 |
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
22 |
** the names of its contributors may be used to endorse or promote |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
23 |
** products derived from this software without specific prior written |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
24 |
** permission. |
0 | 25 |
** |
30
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
26 |
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
27 |
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
28 |
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
29 |
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
30 |
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
31 |
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
32 |
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
33 |
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
34 |
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
35 |
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
5dc02b23752f
Revision: 201025
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
18
diff
changeset
|
36 |
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." |
0 | 37 |
** $QT_END_LICENSE$ |
38 |
** |
|
39 |
****************************************************************************/ |
|
40 |
||
41 |
#include "dialog.h" |
|
42 |
||
43 |
int uniqueAlbumId; |
|
44 |
int uniqueArtistId; |
|
45 |
||
46 |
Dialog::Dialog(QSqlRelationalTableModel *albums, QDomDocument details, |
|
47 |
QFile *output, QWidget *parent) |
|
48 |
: QDialog(parent) |
|
49 |
{ |
|
50 |
model = albums; |
|
51 |
albumDetails = details; |
|
52 |
outputFile = output; |
|
53 |
||
54 |
QGroupBox *inputWidgetBox = createInputWidgets(); |
|
55 |
QDialogButtonBox *buttonBox = createButtons(); |
|
56 |
||
57 |
QVBoxLayout *layout = new QVBoxLayout; |
|
58 |
layout->addWidget(inputWidgetBox); |
|
59 |
layout->addWidget(buttonBox); |
|
60 |
setLayout(layout); |
|
61 |
||
62 |
setWindowTitle(tr("Add Album")); |
|
63 |
} |
|
64 |
||
65 |
void Dialog::submit() |
|
66 |
{ |
|
67 |
QString artist = artistEditor->text(); |
|
68 |
QString title = titleEditor->text(); |
|
69 |
||
70 |
if (artist.isEmpty() || title.isEmpty()) { |
|
71 |
QString message(tr("Please provide both the name of the artist " |
|
72 |
"and the title of the album.")); |
|
73 |
QMessageBox::information(this, tr("Add Album"), message); |
|
74 |
} else { |
|
75 |
int artistId = findArtistId(artist); |
|
76 |
int albumId = addNewAlbum(title, artistId); |
|
77 |
||
78 |
QStringList tracks; |
|
79 |
tracks = tracksEditor->text().split(',', QString::SkipEmptyParts); |
|
80 |
addTracks(albumId, tracks); |
|
81 |
||
82 |
increaseAlbumCount(indexOfArtist(artist)); |
|
83 |
accept(); |
|
84 |
} |
|
85 |
} |
|
86 |
||
87 |
int Dialog::findArtistId(const QString &artist) |
|
88 |
{ |
|
89 |
QSqlTableModel *artistModel = model->relationModel(2); |
|
90 |
int row = 0; |
|
91 |
||
92 |
while (row < artistModel->rowCount()) { |
|
93 |
QSqlRecord record = artistModel->record(row); |
|
94 |
if (record.value("artist") == artist) |
|
95 |
return record.value("id").toInt(); |
|
96 |
else |
|
97 |
row++; |
|
98 |
} |
|
99 |
return addNewArtist(artist); |
|
100 |
} |
|
101 |
||
102 |
||
103 |
int Dialog::addNewArtist(const QString &name) |
|
104 |
{ |
|
105 |
QSqlTableModel *artistModel = model->relationModel(2); |
|
106 |
QSqlRecord record; |
|
107 |
||
108 |
int id = generateArtistId(); |
|
109 |
||
110 |
QSqlField f1("id", QVariant::Int); |
|
111 |
QSqlField f2("artist", QVariant::String); |
|
112 |
QSqlField f3("albumcount", QVariant::Int); |
|
113 |
||
114 |
f1.setValue(QVariant(id)); |
|
115 |
f2.setValue(QVariant(name)); |
|
116 |
f3.setValue(QVariant(0)); |
|
117 |
record.append(f1); |
|
118 |
record.append(f2); |
|
119 |
record.append(f3); |
|
120 |
||
121 |
artistModel->insertRecord(-1, record); |
|
122 |
return id; |
|
123 |
} |
|
124 |
||
125 |
int Dialog::addNewAlbum(const QString &title, int artistId) |
|
126 |
{ |
|
127 |
int id = generateAlbumId(); |
|
128 |
QSqlRecord record; |
|
129 |
||
130 |
QSqlField f1("albumid", QVariant::Int); |
|
131 |
QSqlField f2("title", QVariant::String); |
|
132 |
QSqlField f3("artistid", QVariant::Int); |
|
133 |
QSqlField f4("year", QVariant::Int); |
|
134 |
||
135 |
f1.setValue(QVariant(id)); |
|
136 |
f2.setValue(QVariant(title)); |
|
137 |
f3.setValue(QVariant(artistId)); |
|
138 |
f4.setValue(QVariant(yearEditor->value())); |
|
139 |
record.append(f1); |
|
140 |
record.append(f2); |
|
141 |
record.append(f3); |
|
142 |
record.append(f4); |
|
143 |
||
144 |
model->insertRecord(-1, record); |
|
145 |
return id; |
|
146 |
} |
|
147 |
||
148 |
void Dialog::addTracks(int albumId, QStringList tracks) |
|
149 |
{ |
|
150 |
QDomElement albumNode = albumDetails.createElement("album"); |
|
151 |
albumNode.setAttribute("id", albumId); |
|
152 |
||
153 |
for (int i = 0; i < tracks.count(); i++) { |
|
154 |
QString trackNumber = QString::number(i); |
|
155 |
if (i < 10) |
|
156 |
trackNumber.prepend("0"); |
|
157 |
||
158 |
QDomText textNode = albumDetails.createTextNode(tracks.at(i)); |
|
159 |
||
160 |
QDomElement trackNode = albumDetails.createElement("track"); |
|
161 |
trackNode.setAttribute("number", trackNumber); |
|
162 |
trackNode.appendChild(textNode); |
|
163 |
||
164 |
albumNode.appendChild(trackNode); |
|
165 |
} |
|
166 |
||
167 |
QDomNodeList archive = albumDetails.elementsByTagName("archive"); |
|
168 |
archive.item(0).appendChild(albumNode); |
|
169 |
||
170 |
/* |
|
171 |
The following code is commented out since the example uses an in |
|
172 |
memory database, i.e., altering the XML file will bring the data |
|
173 |
out of sync. |
|
174 |
||
175 |
if (!outputFile->open(QIODevice::WriteOnly)) { |
|
176 |
return; |
|
177 |
} else { |
|
178 |
QTextStream stream(outputFile); |
|
179 |
archive.item(0).save(stream, 4); |
|
180 |
outputFile->close(); |
|
181 |
} |
|
182 |
*/ |
|
183 |
} |
|
184 |
||
185 |
void Dialog::increaseAlbumCount(QModelIndex artistIndex) |
|
186 |
{ |
|
187 |
QSqlTableModel *artistModel = model->relationModel(2); |
|
188 |
||
189 |
QModelIndex albumCountIndex; |
|
190 |
albumCountIndex = artistIndex.sibling(artistIndex.row(), 2); |
|
191 |
||
192 |
int albumCount = albumCountIndex.data().toInt(); |
|
193 |
artistModel->setData(albumCountIndex, QVariant(albumCount + 1)); |
|
194 |
} |
|
195 |
||
196 |
||
197 |
void Dialog::revert() |
|
198 |
{ |
|
199 |
artistEditor->clear(); |
|
200 |
titleEditor->clear(); |
|
201 |
yearEditor->setValue(QDate::currentDate().year()); |
|
202 |
tracksEditor->clear(); |
|
203 |
} |
|
204 |
||
205 |
QGroupBox *Dialog::createInputWidgets() |
|
206 |
{ |
|
207 |
QGroupBox *box = new QGroupBox(tr("Add Album")); |
|
208 |
||
209 |
QLabel *artistLabel = new QLabel(tr("Artist:")); |
|
210 |
QLabel *titleLabel = new QLabel(tr("Title:")); |
|
211 |
QLabel *yearLabel = new QLabel(tr("Year:")); |
|
212 |
QLabel *tracksLabel = new QLabel(tr("Tracks (separated by comma):")); |
|
213 |
||
214 |
artistEditor = new QLineEdit; |
|
215 |
titleEditor = new QLineEdit; |
|
216 |
||
217 |
yearEditor = new QSpinBox; |
|
218 |
yearEditor->setMinimum(1900); |
|
219 |
yearEditor->setMaximum(QDate::currentDate().year()); |
|
220 |
yearEditor->setValue(yearEditor->maximum()); |
|
221 |
yearEditor->setReadOnly(false); |
|
222 |
||
223 |
tracksEditor = new QLineEdit; |
|
224 |
||
225 |
QGridLayout *layout = new QGridLayout; |
|
226 |
layout->addWidget(artistLabel, 0, 0); |
|
227 |
layout->addWidget(artistEditor, 0, 1); |
|
228 |
layout->addWidget(titleLabel, 1, 0); |
|
229 |
layout->addWidget(titleEditor, 1, 1); |
|
230 |
layout->addWidget(yearLabel, 2, 0); |
|
231 |
layout->addWidget(yearEditor, 2, 1); |
|
232 |
layout->addWidget(tracksLabel, 3, 0, 1, 2); |
|
233 |
layout->addWidget(tracksEditor, 4, 0, 1, 2); |
|
234 |
box->setLayout(layout); |
|
235 |
||
236 |
return box; |
|
237 |
} |
|
238 |
||
239 |
QDialogButtonBox *Dialog::createButtons() |
|
240 |
{ |
|
241 |
QPushButton *closeButton = new QPushButton(tr("&Close")); |
|
242 |
QPushButton *revertButton = new QPushButton(tr("&Revert")); |
|
243 |
QPushButton *submitButton = new QPushButton(tr("&Submit")); |
|
244 |
||
245 |
closeButton->setDefault(true); |
|
246 |
||
247 |
connect(closeButton, SIGNAL(clicked()), this, SLOT(close())); |
|
248 |
connect(revertButton, SIGNAL(clicked()), this, SLOT(revert())); |
|
249 |
connect(submitButton, SIGNAL(clicked()), this, SLOT(submit())); |
|
250 |
||
251 |
QDialogButtonBox *buttonBox = new QDialogButtonBox; |
|
252 |
buttonBox->addButton(submitButton, QDialogButtonBox::ResetRole); |
|
253 |
buttonBox->addButton(revertButton, QDialogButtonBox::ResetRole); |
|
254 |
buttonBox->addButton(closeButton, QDialogButtonBox::RejectRole); |
|
255 |
||
256 |
return buttonBox; |
|
257 |
} |
|
258 |
||
259 |
QModelIndex Dialog::indexOfArtist(const QString &artist) |
|
260 |
{ |
|
261 |
QSqlTableModel *artistModel = model->relationModel(2); |
|
262 |
||
263 |
for (int i = 0; i < artistModel->rowCount(); i++) { |
|
264 |
QSqlRecord record = artistModel->record(i); |
|
265 |
if (record.value("artist") == artist) |
|
266 |
return artistModel->index(i, 1); |
|
267 |
} |
|
268 |
||
269 |
return QModelIndex(); |
|
270 |
} |
|
271 |
||
272 |
int Dialog::generateArtistId() |
|
273 |
{ |
|
274 |
uniqueArtistId += 1; |
|
275 |
return uniqueArtistId; |
|
276 |
} |
|
277 |
||
278 |
int Dialog::generateAlbumId() |
|
279 |
{ |
|
280 |
uniqueAlbumId += 1; |
|
281 |
return uniqueAlbumId; |
|
282 |
} |