66 lines
1.4 KiB
C++
66 lines
1.4 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 <QGraphicsScene>
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class QGraphicsSceneMouseEvent;
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class QGraphicsSceneMouseEvent;
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class QGraphicsSceneMouseEvent;
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namespace Ui {
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class RpWidget;
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} // namespace Ui
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namespace Editor {
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class ItemCanvas;
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class NumberedItem;
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class Scene final : public QGraphicsScene {
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public:
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Scene(const QRectF &rect);
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~Scene();
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void applyBrush(const QColor &color, float size);
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[[nodiscard]] std::vector<QGraphicsItem*> items(
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Qt::SortOrder order = Qt::DescendingOrder) const;
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void addItem(not_null<NumberedItem*> item);
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[[nodiscard]] rpl::producer<> mousePresses() const;
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protected:
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void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
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void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
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void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override;
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private:
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void clearPath();
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void addLineItem();
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const not_null<ItemCanvas*> _canvas;
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QPainterPath _path;
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bool _drawing = false;
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float64 _lastLineZ = 0.;
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int _itemNumber = 0;
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struct {
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float size = 1.;
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QColor color;
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} _brushData;
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rpl::event_stream<> _mousePresses;
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rpl::lifetime _lifetime;
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};
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} // namespace Editor
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