qt 5.x 学习笔记 (2)
先来放一波过程中用到的资料和官方文档好了。
Standard Dialogs Example qt 5.8
更新的部分还是放在最前面好了。。。
convert from QString to char *的时候有个坑。。。
In order to convert a QString to a char*, then you first need to get a latin1 representation of the string by calling toLatin1() on it which will return a QByteArray. Then call data() on the QByteArray to get a pointer to the data stored in the byte array. See the documentation: See the following example for a demonstration:
举个栗子。。。。
1int main(int argc, char **argv)
2{
3 QApplication app(argc, argv);
4 QString str1 = "Test";
5 QByteArray ba = str1.toLatin1();
6 const char *c_str2 = ba.data();
7 printf("str2: %s", c_str2);
8 return app.exec();
9}
**Note that it is necessary to store the bytearray before you call data() on it, a call like the following const char *c_str2 = str2.toLatin1().data(); will make the application crash as the QByteArray has not been stored and hence no longer exists.**
目前基本框架出来了。。。
可以打开一个文件。。加密。。保存。。。
加密算法部分暂时用倒序输出代替。。。
界面布局还没搞。。。一些提示之类的还没搞。。。。。。。。
接下来要做的。。。大概就是把des写进去了。。。
放一波代码好了。。。
1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the examples of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:BSD$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** BSD License Usage
18** Alternatively, you may use this file under the terms of the BSD license
19** as follows:
20**
21** "Redistribution and use in source and binary forms, with or without
22** modification, are permitted provided that the following conditions are
23** met:
24** * Redistributions of source code must retain the above copyright
25** notice, this list of conditions and the following disclaimer.
26** * Redistributions in binary form must reproduce the above copyright
27** notice, this list of conditions and the following disclaimer in
28** the documentation and/or other materials provided with the
29** distribution.
30** * Neither the name of The Qt Company Ltd nor the names of its
31** contributors may be used to endorse or promote products derived
32** from this software without specific prior written permission.
33**
34**
35** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
36** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
37** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
38** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
39** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
42** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
43** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
44** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
45** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
46**
47** $QT_END_LICENSE$
48**
49****************************************************************************/
50
51#ifndef DIALOG_H
52#define DIALOG_H
53
54#include <QWidget>
55#include <QTextEdit>
56
57class QCheckBox;
58class QLabel;
59class QErrorMessage;
60
61class DialogOptionsWidget;
62
63class Dialog : public QWidget
64{
65 Q_OBJECT
66
67public:
68 Dialog(QWidget *parent = 0);
69
70private slots:
71
72 void setText();
1 void setOpenFileName();
2 void beginToCal();
3 void setSaveFileName();
4 void criticalMessage();
5 void informationMessage();
6 void questionMessage();
7 void warningMessage();
8 void errorMessage();
9
10private:
11
12 QLabel *textLabel;
13
14
15 QLabel *openFileNameLabel;
16
17 QLabel *saveFileNameLabel;
18 QLabel *criticalLabel;
19 QLabel *informationLabel;
20 QLabel *questionLabel;
21 QLabel *warningLabel;
22 QLabel *errorLabel;
23 QErrorMessage *errorMessageDialog;
24 DialogOptionsWidget *fileDialogOptionsWidget;
25 DialogOptionsWidget *colorDialogOptionsWidget;
26 DialogOptionsWidget *fontDialogOptionsWidget;
27 QString openFilesPath;
28 QTextEdit *textEdit;
29 QString QTextSt;
30};
31
32#endif
1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the examples of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:BSD$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** BSD License Usage
18** Alternatively, you may use this file under the terms of the BSD license
19** as follows:
20**
21** "Redistribution and use in source and binary forms, with or without
22** modification, are permitted provided that the following conditions are
23** met:
24** * Redistributions of source code must retain the above copyright
25** notice, this list of conditions and the following disclaimer.
26** * Redistributions in binary form must reproduce the above copyright
27** notice, this list of conditions and the following disclaimer in
28** the documentation and/or other materials provided with the
29** distribution.
30** * Neither the name of The Qt Company Ltd nor the names of its
31** contributors may be used to endorse or promote products derived
32** from this software without specific prior written permission.
33**
34**
35** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
36** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
37** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
38** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
39** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
42** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
43** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
44** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
45** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
46**
47** $QT_END_LICENSE$
48**
49****************************************************************************/
50
51#include <QtWidgets>
52#include <QTextEdit>
53
54#include "dialog.h"
55
56#define MESSAGE \
57 Dialog::tr("<p>Message boxes have a caption, a text, " \
58 "and any number of buttons, each with standard or custom texts." \
59 "<p>Click a button to close the message box. Pressing the Esc button " \
60 "will activate the detected escape button (if any).")
61#define MESSAGE_DETAILS \
62 Dialog::tr("If a message box has detailed text, the user can reveal it " \
63 "by pressing the Show Details... button.")
64
65class DialogOptionsWidget : public QGroupBox
66{
67public:
68 explicit DialogOptionsWidget(QWidget *parent = 0);
1 void addCheckBox(const QString &text, int value);
2 void addSpacer();
3 int value() const;
4
5private:
6 typedef QPair<QCheckBox *, int> CheckBoxEntry;
7 QVBoxLayout *layout;
8 QList<CheckBoxEntry> checkBoxEntries;
9};
1DialogOptionsWidget::DialogOptionsWidget(QWidget *parent) :
2 QGroupBox(parent) , layout(new QVBoxLayout)
3{
4 //setTitle(Dialog::tr("Optionsssss"));
5 // textEdit = new QTextEdit(this);
6 //setCentralWidget(textEdit);
7 //textEdit = new QTextEdit(this);
8 //setCentralWidget(textEdit);
9
10 // setLayout(layout);
11}
1void DialogOptionsWidget::addCheckBox(const QString &text, int value)
2{
3 QCheckBox *checkBox = new QCheckBox(text);
4 layout->addWidget(checkBox);
5 checkBoxEntries.append(CheckBoxEntry(checkBox, value));
6}
7
8void DialogOptionsWidget::addSpacer()
9{
10 layout->addItem(new QSpacerItem(0, 0, QSizePolicy::Ignored, QSizePolicy::MinimumExpanding));
11}
12
13int DialogOptionsWidget::value() const
14{
15 int result = 0;
16 foreach (const CheckBoxEntry &checkboxEntry, checkBoxEntries)
17 if (checkboxEntry.first->isChecked())
18 result |= checkboxEntry.second;
19 return result;
20}
21
22Dialog::Dialog(QWidget *parent)
23 : QWidget(parent)
24{
25 QVBoxLayout *verticalLayout;
26 if (QGuiApplication::styleHints()->showIsFullScreen() || QGuiApplication::styleHints()->showIsMaximized()) {
27 QHBoxLayout *horizontalLayout = new QHBoxLayout(this);
28 QGroupBox *groupBox = new QGroupBox(QGuiApplication::applicationDisplayName(), this);
29 horizontalLayout->addWidget(groupBox);
30 verticalLayout = new QVBoxLayout(groupBox);
31 } else {
32 verticalLayout = new QVBoxLayout(this);
33 }
34
35 QToolBox *toolbox = new QToolBox;
36 verticalLayout->addWidget(toolbox);
37
38 errorMessageDialog = new QErrorMessage(this);
39
40 int frameStyle = QFrame::Sunken | QFrame::Panel;
41
42 textLabel = new QLabel;
43 textLabel->setFrameStyle(frameStyle);
44 QPushButton *textButton = new QPushButton(tr("加密文件"));
45
46 openFileNameLabel = new QLabel;
47 openFileNameLabel->setFrameStyle(frameStyle);
48 QPushButton *openFileNameButton =
49 new QPushButton(tr("打开文件"));
50
51 QPushButton *calButton =
52 new QPushButton(tr("加密"));
53
54
55
56 saveFileNameLabel = new QLabel;
57 saveFileNameLabel->setFrameStyle(frameStyle);
58 QPushButton *saveFileNameButton =
59 new QPushButton(tr("QFileDialog::get&SaveFileName()"));
60
61 criticalLabel = new QLabel;
62 criticalLabel->setFrameStyle(frameStyle);
63 QPushButton *criticalButton =
64 new QPushButton(tr("QMessageBox::critica&l()"));
65
66 informationLabel = new QLabel;
67 informationLabel->setFrameStyle(frameStyle);
68 QPushButton *informationButton =
69 new QPushButton(tr("QMessageBox::i&nformation()"));
70
71 questionLabel = new QLabel;
72 questionLabel->setFrameStyle(frameStyle);
73 QPushButton *questionButton =
74 new QPushButton(tr("QMessageBox::&question()"));
75
76 warningLabel = new QLabel;
77 warningLabel->setFrameStyle(frameStyle);
78 QPushButton *warningButton = new QPushButton(tr("QMessageBox::&warning()"));
79
80 errorLabel = new QLabel;
81 errorLabel->setFrameStyle(frameStyle);
82 QPushButton *errorButton =
83 new QPushButton(tr("QErrorMessage::showM&essage()"));
84
85
86 connect(textButton, &QAbstractButton::clicked, this, &Dialog::setText);
87
88 connect(openFileNameButton, &QAbstractButton::clicked,
89 this, &Dialog::setOpenFileName);
90
91 connect(calButton,&QAbstractButton::clicked,
92 this,&Dialog::beginToCal);
93
94 connect(saveFileNameButton, &QAbstractButton::clicked,
95 this, &Dialog::setSaveFileName);
96 connect(criticalButton, &QAbstractButton::clicked, this, &Dialog::criticalMessage);
97 connect(informationButton, &QAbstractButton::clicked,
98 this, &Dialog::informationMessage);
99 connect(questionButton, &QAbstractButton::clicked, this, &Dialog::questionMessage);
100 connect(warningButton, &QAbstractButton::clicked, this, &Dialog::warningMessage);
101 connect(errorButton, &QAbstractButton::clicked, this, &Dialog::errorMessage);
102
103 QWidget *page = new QWidget;
104 QGridLayout *layout = new QGridLayout(page);
105 layout->setColumnStretch(1, 1);
106 layout->setColumnMinimumWidth(1, 250);
107
108 layout->addWidget(textButton, 3, 0);
109 layout->addWidget(textLabel, 3, 1);
110
111 layout->addItem(new QSpacerItem(0, 0, QSizePolicy::Ignored, QSizePolicy::MinimumExpanding), 5, 0);
112 toolbox->addItem(page, tr("Input Dialogs"));
113
114 const QString doNotUseNativeDialog = tr("Do not use native dialog");
115
116 page = new QWidget;
117 layout = new QGridLayout(page);
118 layout->setColumnStretch(1, 1);
119
120 /* colorDialogOptionsWidget = new DialogOptionsWidget;
121 colorDialogOptionsWidget->addCheckBox(doNotUseNativeDialog, QColorDialog::DontUseNativeDialog);
122 colorDialogOptionsWidget->addCheckBox(tr("Show alpha channel") , QColorDialog::ShowAlphaChannel);
123 colorDialogOptionsWidget->addCheckBox(tr("No buttons") , QColorDialog::NoButtons);
124 layout->addItem(new QSpacerItem(0, 0, QSizePolicy::Ignored, QSizePolicy::MinimumExpanding), 1, 0);
125 layout->addWidget(colorDialogOptionsWidget, 2, 0, 1 ,2);
126
127 toolbox->addItem(page, tr("Color Dialog"));
128 */
129
130 // page = new QWidget;
131 // layout = new QGridLayout(page);
132 // layout->setColumnStretch(1, 1);
133 // layout->addWidget(fontButton, 0, 0);
134 //layout->addWidget(fontLabel, 0, 1);
135
136
137 page = new QWidget;
138 layout = new QGridLayout(page);
139 layout->setColumnStretch(3,1);
140
141 layout->addWidget(openFileNameButton, 1, 0);
142 layout->addWidget(openFileNameLabel, 1,1);
143 layout->addWidget(calButton,1,2);
144
145 layout->addWidget(saveFileNameButton, 3, 0);
146 layout->addWidget(saveFileNameLabel, 3, 1);
147 fileDialogOptionsWidget = new DialogOptionsWidget;
148
149
150 layout->addItem(new QSpacerItem(0, 0, QSizePolicy::Ignored, QSizePolicy::MinimumExpanding), 4, 0);
151 toolbox->addItem(page, tr("File Dialogs"));
152
153
154 page = new QWidget;
155 layout = new QGridLayout(page);
156 layout->setColumnStretch(1, 1);
157 layout->addWidget(criticalButton, 0, 0);
158 layout->addWidget(criticalLabel, 0, 1);
159 layout->addWidget(informationButton, 1, 0);
160 layout->addWidget(informationLabel, 1, 1);
161 layout->addWidget(questionButton, 2, 0);
162 layout->addWidget(questionLabel, 2, 1);
163 layout->addWidget(warningButton, 3, 0);
164 layout->addWidget(warningLabel, 3, 1);
165 layout->addWidget(errorButton, 4, 0);
166 layout->addWidget(errorLabel, 4, 1);
167 layout->addItem(new QSpacerItem(0, 0, QSizePolicy::Ignored, QSizePolicy::MinimumExpanding), 5, 0);
168
169 toolbox->addItem(page, tr("Message Boxes"));
170
171 setWindowTitle(QGuiApplication::applicationDisplayName());
172}
173
174
175
176
177
178void Dialog::setText()
179{
180 bool ok;
181 QString text = QInputDialog::getText(this, tr("QInputDialog::getText()"),
182 tr("User name:"), QLineEdit::Normal,
183 QDir::home().dirName(), &ok);
184 if (ok && !text.isEmpty())
185 textLabel->setText(text);
186}
187
188
189
190
191
192
193
194
195void Dialog::setOpenFileName()
196{
197 const QFileDialog::Options options = QFlag(fileDialogOptionsWidget->value());
198 QString selectedFilter;
199 QString fileName = QFileDialog::getOpenFileName(this,
200 tr("QFileDialog::getOpenFileName()"),
201 openFileNameLabel->text(),
202 tr("All Files (*);;Text Files (*.txt)"),
203 &selectedFilter,
204 options);
205 if (!fileName.isEmpty())
206 {
207
208 openFileNameLabel->setText(fileName);
209 qDebug()<<"filename:"<<fileName;
210 QFile file(fileName);
211
212 //不仅仅是if判断。。重点是执行了open操作。。。顺便返回值罢了。。kk最菜.jpg
213
214 if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
215 QMessageBox::warning(this, tr("Read File"),
216 tr("Cannot open file:\n%1").arg(fileName));
217 return;
218 }
219
220 QTextStream in(&file);
221 QTextSt = in.readAll();
222 qDebug()<<"fileText:"<<QTextSt<<endl;
223 qDebug()<<"TextLen:"<<QTextSt.length();
224 file.close();
225 }
226}
227
228
229
230void Dialog::beginToCal()
231{
232 int len = QTextSt.length();
233 QString ret = "";
234 for ( int i = len-1 ; i >=0 ; i--)
235 {
236 QChar tmp = QTextSt[i];
237 ret+=tmp;
238
239 }
240 QTextSt = ret;
241}
242
243void Dialog::setSaveFileName()
244{
245 const QFileDialog::Options options = QFlag(fileDialogOptionsWidget->value());
246 QString selectedFilter;
247 QString fileName = QFileDialog::getSaveFileName(this,
248 tr("QFileDialog::getSaveFileName()"),
249 saveFileNameLabel->text(),
250 tr("All Files (*);;Text Files (*.txt)"),
251 &selectedFilter,
252 options);
253
254 if (!fileName.isEmpty())
255 {
256 saveFileNameLabel->setText(fileName);
257 QFile file(fileName);
258 if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
259 QMessageBox::warning(this, tr("Write File"),
260 tr("Cannot open file:\n%1").arg(fileName));
261 return;
262 }
263 QTextStream out(&file);
264 qDebug()<<"save file text:"<<QTextSt<<endl;
265 //out << textEdit->toPlainText();
266 out<<QTextSt<<endl;
267 file.close();
268 }
269
270
271}
272
273void Dialog::criticalMessage()
274{
275 QMessageBox::StandardButton reply;
276 reply = QMessageBox::critical(this, tr("QMessageBox::critical()"),
277 MESSAGE,
278 QMessageBox::Abort | QMessageBox::Retry | QMessageBox::Ignore);
279 if (reply == QMessageBox::Abort)
280 criticalLabel->setText(tr("Abort"));
281 else if (reply == QMessageBox::Retry)
282 criticalLabel->setText(tr("Retry"));
283 else
284 criticalLabel->setText(tr("Ignore"));
285}
286
287void Dialog::informationMessage()
288{
289 QMessageBox::StandardButton reply;
290 reply = QMessageBox::information(this, tr("QMessageBox::information()"), MESSAGE);
291 if (reply == QMessageBox::Ok)
292 informationLabel->setText(tr("OK"));
293 else
294 informationLabel->setText(tr("Escape"));
295}
296
297void Dialog::questionMessage()
298{
299 QMessageBox::StandardButton reply;
300 reply = QMessageBox::question(this, tr("QMessageBox::question()"),
301 MESSAGE,
302 QMessageBox::Yes | QMessageBox::No | QMessageBox::Cancel);
303 if (reply == QMessageBox::Yes)
304 questionLabel->setText(tr("Yes"));
305 else if (reply == QMessageBox::No)
306 questionLabel->setText(tr("No"));
307 else
308 questionLabel->setText(tr("Cancel"));
309}
310
311void Dialog::warningMessage()
312{
313 QMessageBox msgBox(QMessageBox::Warning, tr("QMessageBox::warning()"),
314 MESSAGE, 0, this);
315 msgBox.setDetailedText(MESSAGE_DETAILS);
316 msgBox.addButton(tr("Save &Again"), QMessageBox::AcceptRole);
317 msgBox.addButton(tr("&Continue"), QMessageBox::RejectRole);
318 if (msgBox.exec() == QMessageBox::AcceptRole)
319 warningLabel->setText(tr("Save Again"));
320 else
321 warningLabel->setText(tr("Continue"));
322
323}
324
325void Dialog::errorMessage()
326{
327 errorMessageDialog->showMessage(
328 tr("This dialog shows and remembers error messages. "
329 "If the checkbox is checked (as it is by default), "
330 "the shown message will be shown again, "
331 "but if the user unchecks the box the message "
332 "will not appear again if QErrorMessage::showMessage() "
333 "is called with the same message."));
334 errorLabel->setText(tr("If the box is unchecked, the message "
335 "won't appear again."));
336}
1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the examples of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:BSD$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** BSD License Usage
18** Alternatively, you may use this file under the terms of the BSD license
19** as follows:
20**
21** "Redistribution and use in source and binary forms, with or without
22** modification, are permitted provided that the following conditions are
23** met:
24** * Redistributions of source code must retain the above copyright
25** notice, this list of conditions and the following disclaimer.
26** * Redistributions in binary form must reproduce the above copyright
27** notice, this list of conditions and the following disclaimer in
28** the documentation and/or other materials provided with the
29** distribution.
30** * Neither the name of The Qt Company Ltd nor the names of its
31** contributors may be used to endorse or promote products derived
32** from this software without specific prior written permission.
33**
34**
35** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
36** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
37** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
38** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
39** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
42** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
43** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
44** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
45** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
46**
47** $QT_END_LICENSE$
48**
49****************************************************************************/
1#include <QApplication>
2#include <QStyleHints>
3#include <QDesktopWidget>
4#include <QTranslator>
5#include <QLocale>
6#include <QLibraryInfo>
7
8#include "dialog.h"
9
10int main(int argc, char *argv[])
11{
12 QApplication app(argc, argv);
13 QGuiApplication::setApplicationDisplayName(Dialog::tr("Standard Dialogs"));
14
15#ifndef QT_NO_TRANSLATION
16 QString translatorFileName = QLatin1String("qt_");
17 translatorFileName += QLocale::system().name();
18 QTranslator *translator = new QTranslator(&app);
19 if (translator->load(translatorFileName, QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
20 app.installTranslator(translator);
21#endif
22
23 Dialog dialog;
24 if (!QGuiApplication::styleHints()->showIsFullScreen() && !QGuiApplication::styleHints()->showIsMaximized()) {
25 const QRect availableGeometry = QApplication::desktop()->availableGeometry(&dialog);
26 dialog.resize(availableGeometry.width() * 4 / 5, availableGeometry.height() * 2 / 3);
27 dialog.move((availableGeometry.width() - dialog.width()) / 2,
28 (availableGeometry.height() - dialog.height()) / 2);
29 }
30 dialog.show();
31
32 return app.exec();
33}
记录一些坑？（其实也不算坑。。。
目前我的做法是有一个全局的QString。。。
我是打算直接拆分包装这个QString。。。每8位。。。
然后QString的[] operator得到的是QCharRef类型。。。。
QString之前有的toAscii()被移除了。。。。
qt 5.2以后的方法叫:toLatin1()