examples/dialogs/standarddialogs/dialog.cpp
changeset 0 1918ee327afb
child 3 41300fa6a67c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/dialogs/standarddialogs/dialog.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,385 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "dialog.h"
+
+#define MESSAGE \
+    Dialog::tr("<p>Message boxes have a caption, a text, " \
+               "and any number of buttons, each with standard or custom texts." \
+               "<p>Click a button to close the message box. Pressing the Esc button " \
+               "will activate the detected escape button (if any).")
+
+Dialog::Dialog(QWidget *parent)
+    : QDialog(parent)
+{
+    errorMessageDialog = new QErrorMessage(this);
+
+    int frameStyle = QFrame::Sunken | QFrame::Panel;
+
+    integerLabel = new QLabel;
+    integerLabel->setFrameStyle(frameStyle);
+    QPushButton *integerButton =
+            new QPushButton(tr("QInputDialog::get&Int()"));
+
+    doubleLabel = new QLabel;
+    doubleLabel->setFrameStyle(frameStyle);
+    QPushButton *doubleButton =
+            new QPushButton(tr("QInputDialog::get&Double()"));
+
+    itemLabel = new QLabel;
+    itemLabel->setFrameStyle(frameStyle);
+    QPushButton *itemButton = new QPushButton(tr("QInputDialog::getIte&m()"));
+
+    textLabel = new QLabel;
+    textLabel->setFrameStyle(frameStyle);
+    QPushButton *textButton = new QPushButton(tr("QInputDialog::get&Text()"));
+
+    colorLabel = new QLabel;
+    colorLabel->setFrameStyle(frameStyle);
+    QPushButton *colorButton = new QPushButton(tr("QColorDialog::get&Color()"));
+
+    fontLabel = new QLabel;
+    fontLabel->setFrameStyle(frameStyle);
+    QPushButton *fontButton = new QPushButton(tr("QFontDialog::get&Font()"));
+
+    directoryLabel = new QLabel;
+    directoryLabel->setFrameStyle(frameStyle);
+    QPushButton *directoryButton =
+            new QPushButton(tr("QFileDialog::getE&xistingDirectory()"));
+
+    openFileNameLabel = new QLabel;
+    openFileNameLabel->setFrameStyle(frameStyle);
+    QPushButton *openFileNameButton =
+            new QPushButton(tr("QFileDialog::get&OpenFileName()"));
+
+    openFileNamesLabel = new QLabel;
+    openFileNamesLabel->setFrameStyle(frameStyle);
+    QPushButton *openFileNamesButton =
+            new QPushButton(tr("QFileDialog::&getOpenFileNames()"));
+
+    saveFileNameLabel = new QLabel;
+    saveFileNameLabel->setFrameStyle(frameStyle);
+    QPushButton *saveFileNameButton =
+            new QPushButton(tr("QFileDialog::get&SaveFileName()"));
+
+    criticalLabel = new QLabel;
+    criticalLabel->setFrameStyle(frameStyle);
+    QPushButton *criticalButton =
+            new QPushButton(tr("QMessageBox::critica&l()"));
+
+    informationLabel = new QLabel;
+    informationLabel->setFrameStyle(frameStyle);
+    QPushButton *informationButton =
+            new QPushButton(tr("QMessageBox::i&nformation()"));
+
+    questionLabel = new QLabel;
+    questionLabel->setFrameStyle(frameStyle);
+    QPushButton *questionButton =
+            new QPushButton(tr("QMessageBox::&question()"));
+
+    warningLabel = new QLabel;
+    warningLabel->setFrameStyle(frameStyle);
+    QPushButton *warningButton = new QPushButton(tr("QMessageBox::&warning()"));
+
+    errorLabel = new QLabel;
+    errorLabel->setFrameStyle(frameStyle);
+    QPushButton *errorButton =
+            new QPushButton(tr("QErrorMessage::show&M&essage()"));
+
+    connect(integerButton, SIGNAL(clicked()), this, SLOT(setInteger()));
+    connect(doubleButton, SIGNAL(clicked()), this, SLOT(setDouble()));
+    connect(itemButton, SIGNAL(clicked()), this, SLOT(setItem()));
+    connect(textButton, SIGNAL(clicked()), this, SLOT(setText()));
+    connect(colorButton, SIGNAL(clicked()), this, SLOT(setColor()));
+    connect(fontButton, SIGNAL(clicked()), this, SLOT(setFont()));
+    connect(directoryButton, SIGNAL(clicked()),
+            this, SLOT(setExistingDirectory()));
+    connect(openFileNameButton, SIGNAL(clicked()),
+            this, SLOT(setOpenFileName()));
+    connect(openFileNamesButton, SIGNAL(clicked()),
+            this, SLOT(setOpenFileNames()));
+    connect(saveFileNameButton, SIGNAL(clicked()),
+            this, SLOT(setSaveFileName()));
+    connect(criticalButton, SIGNAL(clicked()), this, SLOT(criticalMessage()));
+    connect(informationButton, SIGNAL(clicked()),
+            this, SLOT(informationMessage()));
+    connect(questionButton, SIGNAL(clicked()), this, SLOT(questionMessage()));
+    connect(warningButton, SIGNAL(clicked()), this, SLOT(warningMessage()));
+    connect(errorButton, SIGNAL(clicked()), this, SLOT(errorMessage()));
+
+    native = new QCheckBox(this);
+    native->setText("Use native file dialog.");
+    native->setChecked(true);
+    QGridLayout *layout = new QGridLayout;
+    layout->setColumnStretch(1, 1);
+    layout->setColumnMinimumWidth(1, 250);
+    layout->addWidget(integerButton, 0, 0);
+    layout->addWidget(integerLabel, 0, 1);
+    layout->addWidget(doubleButton, 1, 0);
+    layout->addWidget(doubleLabel, 1, 1);
+    layout->addWidget(itemButton, 2, 0);
+    layout->addWidget(itemLabel, 2, 1);
+    layout->addWidget(textButton, 3, 0);
+    layout->addWidget(textLabel, 3, 1);
+    layout->addWidget(colorButton, 4, 0);
+    layout->addWidget(colorLabel, 4, 1);
+    layout->addWidget(fontButton, 5, 0);
+    layout->addWidget(fontLabel, 5, 1);
+    layout->addWidget(directoryButton, 6, 0);
+    layout->addWidget(directoryLabel, 6, 1);
+    layout->addWidget(openFileNameButton, 7, 0);
+    layout->addWidget(openFileNameLabel, 7, 1);
+    layout->addWidget(openFileNamesButton, 8, 0);
+    layout->addWidget(openFileNamesLabel, 8, 1);
+    layout->addWidget(saveFileNameButton, 9, 0);
+    layout->addWidget(saveFileNameLabel, 9, 1);
+    layout->addWidget(criticalButton, 10, 0);
+    layout->addWidget(criticalLabel, 10, 1);
+    layout->addWidget(informationButton, 11, 0);
+    layout->addWidget(informationLabel, 11, 1);
+    layout->addWidget(questionButton, 12, 0);
+    layout->addWidget(questionLabel, 12, 1);
+    layout->addWidget(warningButton, 13, 0);
+    layout->addWidget(warningLabel, 13, 1);
+    layout->addWidget(errorButton, 14, 0);
+    layout->addWidget(errorLabel, 14, 1);
+    layout->addWidget(native, 15, 0);
+    setLayout(layout);
+
+    setWindowTitle(tr("Standard Dialogs"));
+}
+
+void Dialog::setInteger()
+{
+//! [0]
+    bool ok;
+    int i = QInputDialog::getInt(this, tr("QInputDialog::getInteger()"),
+                                 tr("Percentage:"), 25, 0, 100, 1, &ok);
+    if (ok)
+        integerLabel->setText(tr("%1%").arg(i));
+//! [0]
+}
+
+void Dialog::setDouble()
+{
+//! [1]
+    bool ok;
+    double d = QInputDialog::getDouble(this, tr("QInputDialog::getDouble()"),
+                                       tr("Amount:"), 37.56, -10000, 10000, 2, &ok);
+    if (ok)
+        doubleLabel->setText(QString("$%1").arg(d));
+//! [1]
+}
+
+void Dialog::setItem()
+{
+//! [2]
+    QStringList items;
+    items << tr("Spring") << tr("Summer") << tr("Fall") << tr("Winter");
+
+    bool ok;
+    QString item = QInputDialog::getItem(this, tr("QInputDialog::getItem()"),
+                                         tr("Season:"), items, 0, false, &ok);
+    if (ok && !item.isEmpty())
+        itemLabel->setText(item);
+//! [2]
+}
+
+void Dialog::setText()
+{
+//! [3]
+    bool ok;
+    QString text = QInputDialog::getText(this, tr("QInputDialog::getText()"),
+                                         tr("User name:"), QLineEdit::Normal,
+                                         QDir::home().dirName(), &ok);
+    if (ok && !text.isEmpty())
+        textLabel->setText(text);
+//! [3]
+}
+
+void Dialog::setColor()
+{
+    QColor color = QColorDialog::getColor(Qt::green, this);
+    if (color.isValid()) {
+        colorLabel->setText(color.name());
+        colorLabel->setPalette(QPalette(color));
+        colorLabel->setAutoFillBackground(true);
+    }
+}
+
+void Dialog::setFont()
+{
+    bool ok;
+    QFont font = QFontDialog::getFont(&ok, QFont(fontLabel->text()), this);
+    if (ok) {
+        fontLabel->setText(font.key());
+        fontLabel->setFont(font);
+    }
+}
+
+void Dialog::setExistingDirectory()
+{
+    QFileDialog::Options options = QFileDialog::DontResolveSymlinks | QFileDialog::ShowDirsOnly;
+    if (!native->isChecked())
+        options |= QFileDialog::DontUseNativeDialog;
+    QString directory = QFileDialog::getExistingDirectory(this,
+                                tr("QFileDialog::getExistingDirectory()"),
+                                directoryLabel->text(),
+                                options);
+    if (!directory.isEmpty())
+        directoryLabel->setText(directory);
+}
+
+void Dialog::setOpenFileName()
+{
+    QFileDialog::Options options;
+    if (!native->isChecked())
+        options |= QFileDialog::DontUseNativeDialog;
+    QString selectedFilter;
+    QString fileName = QFileDialog::getOpenFileName(this,
+                                tr("QFileDialog::getOpenFileName()"),
+                                openFileNameLabel->text(),
+                                tr("All Files (*);;Text Files (*.txt)"),
+                                &selectedFilter,
+                                options);
+    if (!fileName.isEmpty())
+        openFileNameLabel->setText(fileName);
+}
+
+void Dialog::setOpenFileNames()
+{
+    QFileDialog::Options options;
+    if (!native->isChecked())
+        options |= QFileDialog::DontUseNativeDialog;
+    QString selectedFilter;
+    QStringList files = QFileDialog::getOpenFileNames(
+                                this, tr("QFileDialog::getOpenFileNames()"),
+                                openFilesPath,
+                                tr("All Files (*);;Text Files (*.txt)"),
+                                &selectedFilter,
+                                options);
+    if (files.count()) {
+        openFilesPath = files[0];
+        openFileNamesLabel->setText(QString("[%1]").arg(files.join(", ")));
+    }
+}
+
+void Dialog::setSaveFileName()
+{
+    QFileDialog::Options options;
+    if (!native->isChecked())
+        options |= QFileDialog::DontUseNativeDialog;
+    QString selectedFilter;
+    QString fileName = QFileDialog::getSaveFileName(this,
+                                tr("QFileDialog::getSaveFileName()"),
+                                saveFileNameLabel->text(),
+                                tr("All Files (*);;Text Files (*.txt)"),
+                                &selectedFilter,
+                                options);
+    if (!fileName.isEmpty())
+        saveFileNameLabel->setText(fileName);
+}
+
+void Dialog::criticalMessage()
+{
+    QMessageBox::StandardButton reply;
+    reply = QMessageBox::critical(this, tr("QMessageBox::critical()"),
+                                    MESSAGE,
+                                    QMessageBox::Abort | QMessageBox::Retry | QMessageBox::Ignore);
+    if (reply == QMessageBox::Abort)
+        criticalLabel->setText(tr("Abort"));
+    else if (reply == QMessageBox::Retry)
+        criticalLabel->setText(tr("Retry"));
+    else
+        criticalLabel->setText(tr("Ignore"));
+}
+
+void Dialog::informationMessage()
+{
+    QMessageBox::StandardButton reply;
+    reply = QMessageBox::information(this, tr("QMessageBox::information()"), MESSAGE);
+    if (reply == QMessageBox::Ok)
+        informationLabel->setText(tr("OK"));
+    else
+        informationLabel->setText(tr("Escape"));
+}
+
+void Dialog::questionMessage()
+{
+    QMessageBox::StandardButton reply;
+    reply = QMessageBox::question(this, tr("QMessageBox::question()"),
+                                    MESSAGE,
+                                    QMessageBox::Yes | QMessageBox::No | QMessageBox::Cancel);
+    if (reply == QMessageBox::Yes)
+        questionLabel->setText(tr("Yes"));
+    else if (reply == QMessageBox::No)
+        questionLabel->setText(tr("No"));
+    else
+        questionLabel->setText(tr("Cancel"));
+}
+
+void Dialog::warningMessage()
+{
+    QMessageBox msgBox(QMessageBox::Warning, tr("QMessageBox::warning()"),
+                       MESSAGE, 0, this);
+    msgBox.addButton(tr("Save &Again"), QMessageBox::AcceptRole);
+    msgBox.addButton(tr("&Continue"), QMessageBox::RejectRole);
+    if (msgBox.exec() == QMessageBox::AcceptRole)
+        warningLabel->setText(tr("Save Again"));
+    else
+        warningLabel->setText(tr("Continue"));
+
+}
+
+void Dialog::errorMessage()
+{
+    errorMessageDialog->showMessage(
+            tr("This dialog shows and remembers error messages. "
+               "If the checkbox is checked (as it is by default), "
+               "the shown message will be shown again, "
+               "but if the user unchecks the box the message "
+               "will not appear again if QErrorMessage::showMessage() "
+               "is called with the same message."));
+    errorLabel->setText(tr("If the box is unchecked, the message "
+                           "won't appear again."));
+}