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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#include "exportdialog.h"
#include "imageview.h" // ExportData
#include <coreplugin/coreicons.h>
#include <utils/pathchooser.h>
#include <QApplication>
#include <QDesktopWidget>
#include <QDialogButtonBox>
#include <QFileDialog>
#include <QFormLayout>
#include <QHBoxLayout>
#include <QMessageBox>
#include <QLabel>
#include <QLineEdit>
#include <QPushButton>
#include <QSpinBox>
#include <QToolButton>
#include <QVBoxLayout>
#include <QImageWriter>
#include <QDebug>
#include <QDir>
#include <QFileInfo>
#include <QMimeDatabase>
#include <QMimeType>
namespace ImageViewer {
namespace Internal {
enum { exportMinimumSize = 1, exportMaximumSize = 2000 };
QString ExportDialog::imageNameFilterString()
{
static QString result;
if (result.isEmpty()) {
QMimeDatabase mimeDatabase;
const QString separator = QStringLiteral(";;");
foreach (const QByteArray &mimeType, QImageWriter::supportedMimeTypes()) {
const QString filter = mimeDatabase.mimeTypeForName(QLatin1String(mimeType)).filterString();
if (!filter.isEmpty()) {
if (mimeType == QByteArrayLiteral("image/png")) {
if (!result.isEmpty())
result.prepend(separator);
result.prepend(filter);
} else {
if (!result.isEmpty())
result.append(separator);
result.append(filter);
}
}
}
}
return result;
}
ExportDialog::ExportDialog(QWidget *parent)
: QDialog(parent)
, m_pathChooser(new Utils::PathChooser(this))
, m_widthSpinBox(new QSpinBox(this))
, m_heightSpinBox(new QSpinBox(this))
, m_aspectRatio(1)
{
auto formLayout = new QFormLayout(this);
m_pathChooser->setMinimumWidth(QApplication::desktop()->availableGeometry(this).width() / 5);
m_pathChooser->setExpectedKind(Utils::PathChooser::SaveFile);
m_pathChooser->setPromptDialogFilter(imageNameFilterString());
formLayout->addRow(tr("File:"), m_pathChooser);
auto sizeLayout = new QHBoxLayout;
m_widthSpinBox->setMinimum(exportMinimumSize);
m_widthSpinBox->setMaximum(exportMaximumSize);
connect(m_widthSpinBox, QOverload<int>::of(&QSpinBox::valueChanged),
this, &ExportDialog::exportWidthChanged);
sizeLayout->addWidget(m_widthSpinBox);
//: Multiplication, as in 32x32
sizeLayout->addWidget(new QLabel(tr("x")));
m_heightSpinBox->setMinimum(exportMinimumSize);
m_heightSpinBox->setMaximum(exportMaximumSize);
connect(m_heightSpinBox, QOverload<int>::of(&QSpinBox::valueChanged),
this, &ExportDialog::exportHeightChanged);
sizeLayout->addWidget(m_heightSpinBox);
auto resetButton = new QToolButton(this);
resetButton->setIcon(QIcon(QStringLiteral(":/qt-project.org/styles/commonstyle/images/refresh-32.png")));
sizeLayout->addWidget(resetButton);
sizeLayout->addStretch();
connect(resetButton, &QAbstractButton::clicked, this, &ExportDialog::resetExportSize);
formLayout->addRow(tr("Size:"), sizeLayout);
auto buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, this);
connect(buttonBox, &QDialogButtonBox::accepted, this, &QDialog::accept);
connect(buttonBox, &QDialogButtonBox::rejected, this, &QDialog::reject);
formLayout->addRow(buttonBox);
}
void ExportDialog::accept()
{
if (!m_pathChooser->isValid()) {
QMessageBox::warning(this, windowTitle(), m_pathChooser->errorMessage());
return;
}
const QString fileName = exportFileName();
if (QFileInfo::exists(fileName)) {
const QString question = tr("%1 already exists.\nWould you like to overwrite it?")
.arg(QDir::toNativeSeparators(fileName));
if (QMessageBox::question(this, windowTitle(), question, QMessageBox::Yes | QMessageBox::No) != QMessageBox::Yes)
return;
}
QDialog::accept();
}
QSize ExportDialog::exportSize() const
{
return {m_widthSpinBox->value(), m_heightSpinBox->value()};
}
void ExportDialog::setExportSize(const QSize &size)
{
m_defaultSize = size;
const QSizeF defaultSizeF(m_defaultSize);
m_aspectRatio = defaultSizeF.width() / defaultSizeF.height();
setExportWidthBlocked(size.width());
setExportHeightBlocked(size.height());
}
void ExportDialog::resetExportSize()
{
setExportWidthBlocked(m_defaultSize.width());
setExportHeightBlocked(m_defaultSize.height());
}
void ExportDialog::setExportWidthBlocked(int width)
{
if (m_widthSpinBox->value() != width) {
QSignalBlocker blocker(m_widthSpinBox);
m_widthSpinBox->setValue(width);
}
}
void ExportDialog::setExportHeightBlocked(int height)
{
if (m_heightSpinBox->value() != height) {
QSignalBlocker blocker(m_heightSpinBox);
m_heightSpinBox->setValue(height);
}
}
void ExportDialog::exportWidthChanged(int width)
{
const bool square = m_defaultSize.width() == m_defaultSize.height();
setExportHeightBlocked(square ? width : qRound(qreal(width) / m_aspectRatio));
}
void ExportDialog::exportHeightChanged(int height)
{
const bool square = m_defaultSize.width() == m_defaultSize.height();
setExportWidthBlocked(square ? height : qRound(qreal(height) * m_aspectRatio));
}
QString ExportDialog::exportFileName() const
{
return m_pathChooser->filePath().toString();
}
void ExportDialog::setExportFileName(const QString &f)
{
m_pathChooser->setFilePath(Utils::FilePath::fromString(f));
}
ExportData ExportDialog::exportData() const
{
return {exportFileName(), exportSize()};
}
} // namespace Internal
} // namespace ImageViewer
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