94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
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/*
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* Squawk messenger.
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* Copyright (C) 2019 Yury Gubich <blue@macaw.me>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef DROPSHADOWEFFECT_H
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#define DROPSHADOWEFFECT_H
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#include <QGraphicsEffect>
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#include <QPainter>
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#include <QPointF>
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#include <QColor>
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class PixmapFilter : public QObject
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{
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Q_OBJECT
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public:
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PixmapFilter(QObject *parent = nullptr);
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virtual ~PixmapFilter() = 0;
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virtual QRectF boundingRectFor(const QRectF &rect) const;
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virtual void draw(QPainter *painter, const QPointF &p, const QPixmap &src, const QRectF &srcRect = QRectF()) const = 0;
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};
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class PixmapDropShadowFilter : public PixmapFilter
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{
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Q_OBJECT
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public:
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PixmapDropShadowFilter(QObject *parent = nullptr);
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~PixmapDropShadowFilter();
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void draw(QPainter *p, const QPointF &pos, const QPixmap &px, const QRectF &src = QRectF()) const override;
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qreal blurRadius() const;
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void setBlurRadius(qreal radius);
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QColor color() const;
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void setColor(const QColor &color);
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qreal thickness() const;
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void setThickness(qreal thickness);
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void setFrame(bool top, bool right, bool bottom, bool left);
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protected:
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QColor mColor;
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qreal mRadius;
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qreal mThickness;
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bool top;
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bool right;
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bool bottom;
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bool left;
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};
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class DropShadowEffect : public QGraphicsEffect
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{
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Q_OBJECT
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public:
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qreal blurRadius() const;
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QColor color() const;
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void setFrame(bool top, bool right, bool bottom, bool left);
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void setThickness(qreal thickness);
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signals:
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void blurRadiusChanged(qreal blurRadius);
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void colorChanged(const QColor &color);
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public slots:
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void setBlurRadius(qreal blurRadius);
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void setColor(const QColor &color);
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protected:
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void draw(QPainter * painter) override;
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protected:
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PixmapDropShadowFilter filter;
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};
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#endif // DROPSHADOWEFFECT_H
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