Files
lcd-image-converter/classes/data/imagesscaledproxy.cpp
2016-09-20 22:04:01 +05:00

85 lines
2.1 KiB
C++

/*
* LCD Image Converter. Converts images and fonts for embedded applications.
* Copyright (C) 2016 riuson
* mailto: riuson@gmail.com
*
* 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 "imagesscaledproxy.h"
#include "bitmaphelper.h"
ImagesScaledProxy::ImagesScaledProxy(QObject *parent)
: QSortFilterProxyModel(parent)
{
this->mScale = 2;
}
ImagesScaledProxy::~ImagesScaledProxy()
{
}
QVariant ImagesScaledProxy::data(const QModelIndex &index, int role) const
{
QVariant result = this->sourceModel()->data(index, role);
if (!index.isValid())
return result;
int columnIndex = index.column();
int valueIndex = index.row();
switch (role)
{
case Qt::DecorationRole:
{
if (columnIndex == 1)
{
QImage imageSource = result.value<QImage>();
QImage imageScaled = BitmapHelper::scale(&imageSource, this->mScale);
result = imageScaled;
}
break;
}
case Qt::SizeHintRole:
{
if (columnIndex == 1)
{
QSize size = result.toSize();
size.scale(size.width() * this->mScale, size.height() * this->mScale, Qt::KeepAspectRatio);
result = size;
}
break;
}
default:
break;
}
return result;
}
int ImagesScaledProxy::scale() const
{
return this->mScale;
}
void ImagesScaledProxy::setScale(int value)
{
if (value >= 1)
{
this->mScale = value;
emit this->scaleChanged();
}
}