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95 lines (81 loc) · 3.03 KB
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/***********************************************************************
*
* Copyright (C) 2008, 2009, 2010, 2012 Graeme Gott <graeme@gottcode.org>
* Copyright (C) 2017 wereturtle
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
***********************************************************************/
#include "image_button.h"
#if (QT_VERSION >= QT_VERSION_CHECK(5,0,0))
#include <QStandardPaths>
#else
#include <QDesktopServices>
#endif
#include <QFileDialog>
#include <QImageReader>
//-----------------------------------------------------------------------------
ImageButton::ImageButton(qreal devicePixelRatio, QWidget* parent)
: QPushButton(parent), devicePixelRatio(devicePixelRatio)
{
setAutoDefault(false);
setIconSize(QSize(100, 100));
unsetImage();
connect(this, SIGNAL(clicked()), this, SLOT(onClicked()));
}
//-----------------------------------------------------------------------------
void ImageButton::setImage(const QString& image, const QString& path)
{
QImageReader source(image);
if (source.canRead()) {
m_image = image;
QSize size = source.size();
size.scale(100 * devicePixelRatio, 100 * devicePixelRatio, Qt::KeepAspectRatio);
source.setScaledSize(size);
setIcon(QPixmap::fromImage(source.read(), Qt::AutoColor | Qt::AvoidDither));
m_path = (!path.isEmpty() && QImageReader(path).canRead()) ? path : QString();
emit changed(m_path);
} else {
unsetImage();
}
}
//-----------------------------------------------------------------------------
void ImageButton::unsetImage()
{
m_image.clear();
m_path.clear();
QPixmap icon(100,100);
icon.fill(Qt::transparent);
setIcon(icon);
emit changed(m_path);
}
//-----------------------------------------------------------------------------
void ImageButton::onClicked()
{
QStringList filters;
QList<QByteArray> formats = QImageReader::supportedImageFormats();
foreach (QByteArray type, formats) {
filters.append("*." + type);
}
#if (QT_VERSION >= QT_VERSION_CHECK(5,0,0))
QString path = !m_path.isEmpty() ? m_path : QStandardPaths::writableLocation(QStandardPaths::PicturesLocation);
#else
QString path = !m_path.isEmpty() ? m_path : QDesktopServices::storageLocation(QDesktopServices::PicturesLocation);
#endif
QString image = QFileDialog::getOpenFileName(window(), tr("Open Image"), path, tr("Images(%1)").arg(filters.join(" ")));
if (!image.isEmpty()) {
setImage(image, image);
}
}
//-----------------------------------------------------------------------------