scanned-image-extractor/scannerExtract/imageboundary.cpp

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2024-01-29 23:24:37 +00:00
/***********************************************************************
* This file is part of Scanned Image Extract.
*
* Scanned Image Extract 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.
*
* Scanned Image Extract 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 Scanned Image Extract. If not, see <http://www.gnu.org/licenses/>
*
*
* Copyright (C) 2015, Dominik Rueß; info@dominik-ruess.de
**********************************************************************/
#include "imageboundary.h"
#include <QBrush>
#include <QColor>
#include <QDebug>
#include <QPen>
#include <QStyleOptionGraphicsItem>
#include <QTime>
#include <QPainter>
#include <QTimer>
#include "TargetImage.h"
ImageBoundary::ImageBoundary(QGraphicsItem *parent)
: QGraphicsPathItem(parent)
, _isCopied(false)
, _userHasSeenThis(false)
, _boundaryPercentage(-1.0)
{
QPointF corner[] = {QPointF(-100,-75),
QPointF(100,-75),
QPointF(100,75),
QPointF(-100,75)};
setCorners(corner);
setFlag(QGraphicsItem::ItemIsMovable, true);
setFlag(QGraphicsItem::ItemIsSelectable, true);
setFlag(QGraphicsItem::ItemSendsGeometryChanges, true);
setBrush(NON_SELECTED);
}
QRectF ImageBoundary::boundingRect()
{
QRectF out;
QPointF mi(1e10,1e10), ma(-1e10, -1e10);
for (int i=0; i<4; i++)
{
mi.setX(qMin(mi.x(), corners()[i].x()));
mi.setY(qMin(mi.y(), corners()[i].y()));
ma.setX(qMax(ma.x(), corners()[i].x()));
ma.setY(qMax(ma.y(), corners()[i].y()));
}
out = QRectF(mi, ma);
return out;
}
void ImageBoundary::setCorners(const QPointF corner[])
{
QPainterPath path;
path.moveTo(corner[0]);
for (int i=0; i<4; i++) {
_corners[i] = corner[i];
if (i>0) {
path.lineTo(corner[i]);
}
}
path.lineTo(corner[0]);
setPath(path);
}
const QPointF* ImageBoundary::corners() const
{
return _corners;
}
void ImageBoundary::setCopied(const bool copied)
{
dirty();
_isCopied = copied;
}
void ImageBoundary::paint ( QPainter * painter,
const QStyleOptionGraphicsItem * option,
QWidget * widget )
{
QPen pen;
if ( this->isSelected()) {
setBrush(SELECTED);
pen.setStyle(Qt::DashLine);
QTime t = QTime::currentTime();
QVector<qreal> dashes;
dashes << 5 << 5;
pen.setDashPattern(dashes);
pen.setDashOffset(5*((float)t.second() + (float)t.msec()/1000.0));
} else {
setBrush(_isCopied ? COPIED : NON_SELECTED);
}
pen.setWidth(2);
pen.setCosmetic(true);
setPen(pen);
QStyleOptionGraphicsItem option2 (*option);
option2.state = option2.state & (~QStyle::State_Selected);
QGraphicsPathItem::paint(painter, &option2, widget);
}