Differential D19155 Diff 52082 plugins/dockers/smallcolorselector/KisClickableGLImageWidget.h

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plugins/dockers/smallcolorselector/KisClickableGLImageWidget.h

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		1		/*
		2		* Copyright (c) 2019 Dmitry Kazakov <dimula73@gmail.com>
		3		*
		4		* This program is free software; you can redistribute it and/or modify
		5		* it under the terms of the GNU General Public License as published by
		6		* the Free Software Foundation; either version 2 of the License, or
		7		* (at your option) any later version.
		8		*
		9		* This program is distributed in the hope that it will be useful,
		10		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		11		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		12		* GNU General Public License for more details.
		13		*
		14		* You should have received a copy of the GNU General Public License
		15		* along with this program; if not, write to the Free Software
		16		* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
		17		*/
		18
		19		#ifndef KISCLICKABLEGLIMAGEWIDGET_H
		20		#define KISCLICKABLEGLIMAGEWIDGET_H
		21
		22		#include <KisGLImageWidget.h>
		23		#include <QScopedPointer>
		24
		25
		26		class KisClickableGLImageWidget : public KisGLImageWidget
		27		{
		28		Q_OBJECT
		29		public:
		30		struct HandlePaintingStrategy {
		31		virtual void drawHandle(QPainter *p, const QPointF &normalizedPoint, const QRect &rect, bool useOpacity) = 0;
		32		virtual ~HandlePaintingStrategy() {}
		33		};
		34
		35		struct VerticalLineHandleStrategy : public HandlePaintingStrategy {
		36		void drawHandle(QPainter *p, const QPointF &normalizedPoint, const QRect &rect, bool useOpacity) override;
		37		};
		38
		39		struct CircularHandleStrategy : public HandlePaintingStrategy {
		40		void drawHandle(QPainter *p, const QPointF &normalizedPoint, const QRect &rect, bool useOpacity) override;
		41		};
		42
		43		public:
		44		KisClickableGLImageWidget(QWidget *parent = nullptr);
		45		KisClickableGLImageWidget(QSurfaceFormat::ColorSpace colorSpace,
		46		QWidget *parent = nullptr);
		47		~KisClickableGLImageWidget();
		48
		49		void setHandlePaintingStrategy(HandlePaintingStrategy *strategy);
		50		void setUseHandleOpacity(bool value);
		51
		52		QPointF normalizedPos() const;
		53		void setNormalizedPos(const QPointF &pos, bool update = true);
		54
		55		void paintEvent(QPaintEvent *event) override;
		56
		57		void mousePressEvent(QMouseEvent *event) override;
		58		void mouseReleaseEvent(QMouseEvent *event) override;
		59		void mouseMoveEvent(QMouseEvent *event) override;
		60
		61		Q_SIGNALS:
		62		void selected(const QPointF &normalizedPos);
		63
		64		private:
		65		QPointF normalizePoint(const QPointF &pos) const;
		66
		67		private:
		68		QPointF m_normalizedClickPoint;
		69		QScopedPointer<HandlePaintingStrategy> m_handleStrategy;
		70		bool m_useHandleOpacity = true;
		71		};
		72
		73		#endif // KISCLICKABLEGLIMAGEWIDGET_H