tdesktop/Telegram/SourceFiles/editor/editor_crop.h

98 lines
2.0 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#pragma once
#include "ui/rp_widget.h"
#include "base/flat_map.h"
#include "editor/photo_editor_common.h"
namespace Editor {
// Crop control.
class Crop final : public Ui::RpWidget {
public:
Crop(
not_null<Ui::RpWidget*> parent,
const PhotoModifications &modifications,
const QSize &imageSize,
EditorData type);
void applyTransform(
const QRect &geometry,
int angle,
bool flipped,
const QSizeF &scaledImageSize);
[[nodiscard]] QRect saveCropRect();
[[nodiscard]] style::margins cropMargins() const;
protected:
void mousePressEvent(QMouseEvent *e) override;
void mouseReleaseEvent(QMouseEvent *e) override;
void mouseMoveEvent(QMouseEvent *e) override;
private:
struct InfoAtDown {
QRectF rect;
Qt::Edges edge;
QPoint point;
float64 cropRatio = 0.;
struct Borders {
int left = 0;
int right = 0;
int top = 0;
int bottom = 0;
} borders;
};
void paintPoints(QPainter &p);
void updateEdges();
[[nodiscard]] QPoint pointOfEdge(Qt::Edges e) const;
void setCropPaint(QRectF &&rect);
void convertCropPaintToOriginal();
void computeDownState(const QPoint &p);
void clearDownState();
[[nodiscard]] Qt::Edges mouseState(const QPoint &p);
void performCrop(const QPoint &pos);
void performMove(const QPoint &pos);
const int _pointSize;
const float _pointSizeH;
const style::margins _innerMargins;
const QPoint _offset;
const QMarginsF _edgePointMargins;
const QSize _imageSize;
const EditorData _data;
base::flat_map<Qt::Edges, QRectF> _edges;
struct {
float64 w = 0.;
float64 h = 0.;
} _ratio;
QRectF _cropPaint;
QRectF _cropOriginal;
QRectF _innerRect;
QPainterPath _painterPath;
InfoAtDown _down;
int _angle = 0;
bool _flipped = false;
bool _keepAspectRatio = false;
};
} // namespace Editor