160 lines
3.6 KiB
C++
160 lines
3.6 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include "base/unique_qptr.h"
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#include "editor/photo_editor_inner_common.h"
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#include <QGraphicsItem>
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class QGraphicsSceneHoverEvent;
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class QGraphicsSceneMouseEvent;
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class QStyleOptionGraphicsItem;
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namespace Ui {
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class PopupMenu;
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} // namespace Ui
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namespace Editor {
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class NumberedItem : public QGraphicsItem {
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public:
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enum class Status {
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Normal,
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Undid,
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Removed,
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};
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enum { Type = UserType + 1 };
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using QGraphicsItem::QGraphicsItem;
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int type() const override;
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void setNumber(int number);
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[[nodiscard]] int number() const;
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[[nodiscard]] Status status() const;
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void setStatus(Status status);
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[[nodiscard]] bool isNormalStatus() const;
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[[nodiscard]] bool isUndidStatus() const;
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[[nodiscard]] bool isRemovedStatus() const;
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virtual void save(SaveState state);
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virtual void restore(SaveState state);
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virtual bool hasState(SaveState state) const;
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private:
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int _number = 0;
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Status _status = Status::Normal;
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};
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class ItemBase : public NumberedItem {
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public:
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enum { Type = UserType + 2 };
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struct Data {
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float64 initialZoom = 0.;
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std::shared_ptr<float64> zPtr;
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int size = 0;
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int x = 0;
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int y = 0;
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bool flipped = false;
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int rotation = 0;
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QSize imageSize;
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};
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ItemBase(Data data);
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QRectF boundingRect() const override;
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void paint(
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QPainter *p,
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const QStyleOptionGraphicsItem *option,
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QWidget *widget) override;
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int type() const override;
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bool flipped() const;
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void setFlip(bool value);
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void updateZoom(float64 zoom);
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bool hasState(SaveState state) const override;
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void save(SaveState state) override;
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void restore(SaveState state) override;
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protected:
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enum HandleType {
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None,
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Left,
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Right,
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};
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void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override;
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void hoverMoveEvent(QGraphicsSceneHoverEvent *event) override;
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void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
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void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
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void contextMenuEvent(QGraphicsSceneContextMenuEvent *event) override;
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void keyPressEvent(QKeyEvent *e) override;
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using Action = void(ItemBase::*)();
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void performForSelectedItems(Action action);
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void actionFlip();
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void actionDelete();
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void actionDuplicate();
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QRectF contentRect() const;
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QRectF innerRect() const;
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float64 size() const;
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float64 horizontalSize() const;
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float64 verticalSize() const;
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void setAspectRatio(float64 aspectRatio);
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virtual void performFlip();
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virtual std::shared_ptr<ItemBase> duplicate(Data data) const = 0;
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private:
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HandleType handleType(const QPointF &pos) const;
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QRectF rightHandleRect() const;
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QRectF leftHandleRect() const;
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bool isHandling() const;
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void updateVerticalSize();
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void updatePens(QPen pen);
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void handleActionKey(not_null<QKeyEvent*> e);
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Data generateData() const;
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void applyData(const Data &data);
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const std::shared_ptr<float64> _lastZ;
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const QSize _imageSize;
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struct {
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QPen select;
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QPen selectInactive;
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QPen handle;
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QPen handleInactive;
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} _pens;
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base::unique_qptr<Ui::PopupMenu> _menu;
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struct {
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Data data;
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float64 zValue = 0.;
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NumberedItem::Status status;
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} _saved, _keeped;
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struct {
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int min = 0;
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int max = 0;
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} _sizeLimits;
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float64 _scaledHandleSize = 1.0;
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QMarginsF _scaledInnerMargins;
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float64 _horizontalSize = 0;
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float64 _verticalSize = 0;
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float64 _aspectRatio = 1.0;
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HandleType _handle = HandleType::None;
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bool _flipped = false;
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};
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} // namespace Editor
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