в 14:21, 25 мая 2010

2010-05-25T14:21:06Z

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2010-05-25T10:24:44Z

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==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>

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в 14:21, 25 мая 2010

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