gmic-qt/src/KeypointList.h

123 lines
4.3 KiB
C++

/** -*- mode: c++ ; c-basic-offset: 2 -*-
*
* @file KeypointList.h
*
* Copyright 2017 Sebastien Fourey
*
* This file is part of G'MIC-Qt, a generic plug-in for raster graphics
* editors, offering hundreds of filters thanks to the underlying G'MIC
* image processing framework.
*
* gmic_qt 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.
*
* gmic_qt 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 gmic_qt. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef GMIC_QT_KEYPOINTLIST_H
#define GMIC_QT_KEYPOINTLIST_H
#include <QColor>
#include <QDebug>
#include <QPointF>
#include <QSize>
#include <cmath>
#include <deque>
#include "Common.h"
namespace GmicQt
{
class KeypointList {
public:
struct Keypoint {
float x;
float y;
QColor color; /* A negative alpha means "Keep opacity while moved" */
bool removable;
bool burst;
float radius; /* A negative value is a percentage of the preview diagonal */
bool keepOpacityWhenSelected;
Keypoint(float x, float y, QColor color, bool removable, bool burst, float radius, bool keepOpacityWhenSelected);
Keypoint(QPointF point, QColor color, bool removable, bool burst, float radius, bool keepOpacityWhenSelected);
Keypoint(QColor color, bool removable, bool burst, float radius, bool keepOpacityWhenSelected);
bool isNaN() const;
Keypoint & setNaN();
inline void setPosition(float x, float y);
inline void setPosition(const QPointF & p);
static const float DefaultRadius;
inline int actualRadiusFromPreviewSize(const QSize & size) const;
};
KeypointList();
void add(const Keypoint & keypoint);
bool isEmpty();
void clear();
QPointF position(int n) const;
QColor color(int n) const;
bool isRemovable(int n) const;
typedef std::deque<Keypoint>::iterator iterator;
typedef std::deque<Keypoint>::const_iterator const_iterator;
typedef std::deque<Keypoint>::reverse_iterator reverse_iterator;
typedef std::deque<Keypoint>::const_reverse_iterator const_reverse_iterator;
typedef std::deque<Keypoint>::size_type size_type;
typedef std::deque<Keypoint>::reference reference;
typedef std::deque<Keypoint>::const_reference const_reference;
size_type size() const { return _keypoints.size(); }
reference operator[](size_type index) { return _keypoints[index]; }
const_reference operator[](size_type index) const { return _keypoints[index]; }
void pop_front() { _keypoints.pop_front(); }
const Keypoint & front() { return _keypoints.front(); }
const Keypoint & front() const { return _keypoints.front(); }
iterator begin() { return _keypoints.begin(); }
iterator end() { return _keypoints.end(); }
const_iterator cbegin() const { return _keypoints.cbegin(); }
const_iterator cend() const { return _keypoints.cend(); }
reverse_iterator rbegin() { return _keypoints.rbegin(); }
reverse_iterator rend() { return _keypoints.rend(); }
const_reverse_iterator rbegin() const { return _keypoints.crbegin(); }
const_reverse_iterator rend() const { return _keypoints.crend(); }
const_reverse_iterator crbegin() const { return _keypoints.crbegin(); }
const_reverse_iterator crend() const { return _keypoints.crend(); }
private:
std::deque<Keypoint> _keypoints;
};
void KeypointList::Keypoint::setPosition(float x, float y)
{
KeypointList::Keypoint::x = x;
KeypointList::Keypoint::y = y;
}
void KeypointList::Keypoint::setPosition(const QPointF & point)
{
KeypointList::Keypoint::x = (float)point.x();
KeypointList::Keypoint::y = (float)point.y();
}
int KeypointList::Keypoint::actualRadiusFromPreviewSize(const QSize & size) const
{
if (radius >= 0) {
return static_cast<int>(radius);
} else {
return std::max(2, static_cast<int>(std::round(-static_cast<double>(radius) * (std::sqrt(size.width() * size.width() + size.height() * size.height())) / 100.0)));
}
}
} // namespace GmicQt
#endif // GMIC_QT_KEYPOINTLIST_H