C++/Qt/QInputDialog
Содержание
QInputDialog: get integer
<source lang="cpp"> Foundations of Qt Development\Chapter03\messagebox\main.cpp /*
* Copyright (c) 2006-2007, Johan Thelin * * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of APress nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */
- include <QApplication>
- include <QMessageBox>
- include <QInputDialog>
- include <QIcon>
class Tester : public QWidget { public:
void test()
{
QMessageBox::information(
this,
tr("Application Name"),
tr("An information message.") );
QMessageBox::warning(
this,
tr("Application Name"),
tr("A warning message.") );
QMessageBox::critical(
this,
tr("Application Name"),
tr("A critical message.") );
switch( QMessageBox::question(
this,
tr("Application Name"),
tr("An information message."),
QMessageBox::Yes |
QMessageBox::No |
QMessageBox::Cancel,
QMessageBox::Cancel ) )
{
case QMessageBox::Yes:
qDebug( "yes" );
break;
case QMessageBox::No:
qDebug( "no" );
break;
case QMessageBox::Cancel:
qDebug( "cancel" );
break;
default:
qDebug( "close" );
break;
}
setWindowIcon( QIcon("cut.png") );
{
bool ok;
int value = QInputDialog::getInteger(
this,
tr("Integer"),
tr("Enter an angle:"),
90,
0,
360,
1,
&ok );
if( ok )
{
}
} {
bool ok;
QStringList items;
items << tr("Foo") << tr("Bar") << tr("Baz");
QString item = QInputDialog::getItem(
this,
tr("Item"),
tr("Pick an item:"),
items,
0,
false,
&ok );
if( ok && !item.isEmpty() )
{
}
} {
bool ok;
QString text = QInputDialog::getText(
this,
tr("String"),
tr("Enter a city name:"),
QLineEdit::Normal,
tr("Alings?s"),
&ok );
if( ok && !text.isEmpty() )
{
}
}
}
}; int main( int argc, char **argv ) {
QApplication app( argc, argv ); Tester t; t.test(); return 0;
}
</source>
QInputDialog: get string item
<source lang="cpp"> Foundations of Qt Development\Chapter03\messagebox\main.cpp /*
* Copyright (c) 2006-2007, Johan Thelin * * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of APress nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */
- include <QApplication>
- include <QMessageBox>
- include <QInputDialog>
- include <QIcon>
class Tester : public QWidget { public:
void test()
{
QMessageBox::information(
this,
tr("Application Name"),
tr("An information message.") );
QMessageBox::warning(
this,
tr("Application Name"),
tr("A warning message.") );
QMessageBox::critical(
this,
tr("Application Name"),
tr("A critical message.") );
switch( QMessageBox::question(
this,
tr("Application Name"),
tr("An information message."),
QMessageBox::Yes |
QMessageBox::No |
QMessageBox::Cancel,
QMessageBox::Cancel ) )
{
case QMessageBox::Yes:
qDebug( "yes" );
break;
case QMessageBox::No:
qDebug( "no" );
break;
case QMessageBox::Cancel:
qDebug( "cancel" );
break;
default:
qDebug( "close" );
break;
}
setWindowIcon( QIcon("cut.png") );
{
bool ok;
int value = QInputDialog::getInteger(
this,
tr("Integer"),
tr("Enter an angle:"),
90,
0,
360,
1,
&ok );
if( ok )
{
}
} {
bool ok;
QStringList items;
items << tr("Foo") << tr("Bar") << tr("Baz");
QString item = QInputDialog::getItem(
this,
tr("Item"),
tr("Pick an item:"),
items,
0,
false,
&ok );
if( ok && !item.isEmpty() )
{
}
} {
bool ok;
QString text = QInputDialog::getText(
this,
tr("String"),
tr("Enter a city name:"),
QLineEdit::Normal,
tr("Alings?s"),
&ok );
if( ok && !text.isEmpty() )
{
}
}
}
}; int main( int argc, char **argv ) {
QApplication app( argc, argv ); Tester t; t.test(); return 0;
}
</source>
QInputDialog: get text
<source lang="cpp"> Foundations of Qt Development\Chapter03\messagebox\main.cpp /*
* Copyright (c) 2006-2007, Johan Thelin * * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of APress nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */
- include <QApplication>
- include <QMessageBox>
- include <QInputDialog>
- include <QIcon>
class Tester : public QWidget { public:
void test()
{
QMessageBox::information(
this,
tr("Application Name"),
tr("An information message.") );
QMessageBox::warning(
this,
tr("Application Name"),
tr("A warning message.") );
QMessageBox::critical(
this,
tr("Application Name"),
tr("A critical message.") );
switch( QMessageBox::question(
this,
tr("Application Name"),
tr("An information message."),
QMessageBox::Yes |
QMessageBox::No |
QMessageBox::Cancel,
QMessageBox::Cancel ) )
{
case QMessageBox::Yes:
qDebug( "yes" );
break;
case QMessageBox::No:
qDebug( "no" );
break;
case QMessageBox::Cancel:
qDebug( "cancel" );
break;
default:
qDebug( "close" );
break;
}
setWindowIcon( QIcon("cut.png") );
{
bool ok;
int value = QInputDialog::getInteger(
this,
tr("Integer"),
tr("Enter an angle:"),
90,
0,
360,
1,
&ok );
if( ok )
{
}
} {
bool ok;
QStringList items;
items << tr("Foo") << tr("Bar") << tr("Baz");
QString item = QInputDialog::getItem(
this,
tr("Item"),
tr("Pick an item:"),
items,
0,
false,
&ok );
if( ok && !item.isEmpty() )
{
}
} {
bool ok;
QString text = QInputDialog::getText(
this,
tr("String"),
tr("Enter a city name:"),
QLineEdit::Normal,
tr("Alings?s"),
&ok );
if( ok && !text.isEmpty() )
{
}
}
}
}; int main( int argc, char **argv ) {
QApplication app( argc, argv ); Tester t; t.test(); return 0;
}
</source>
Read int from dialog
<source lang="cpp">
- include <QtGui>
int main (int argc, char* argv[]) {
QApplication app(argc, argv);
QTextStream cout(stdout, QIODevice::WriteOnly);
int factArg = QInputDialog::getInteger(0, "Calculator","value:", 1);
QString response = QString("The factorial of %1 is %2.\n%3").arg(factArg).arg(1);
int answer = QMessageBox::question(0, "Play again?", response,QMessageBox::Yes | QMessageBox::No);
}
</source>
Set value for QInputDialog
<source lang="cpp">
- include <QInputDialog>
- include <QStringList>
- include <QApplication>
int main(int argc, char** argv) {
QApplication app(argc, argv);
app.setQuitOnLastWindowClosed(false);
QStringList hobbits, yesno;
hobbits << "a" << "B" << "S" << "M" << "P";
yesno << "yes" << "no";
QString outcome, more, title("title");
QString query("a query");
do {
QString pick = QInputDialog::getItem(0, title, query, hobbits);
outcome = QString("You picked %1, try again?").arg(pick);
more = QInputDialog::getItem(0, "Pick a Hobbit", outcome, yesno, 1, false);
} while (more == "yes");
}
</source>
