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152 lines
3.4 KiB
152 lines
3.4 KiB
/***************************************************************************
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sq_glselectionpainter.h - description
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-------------------
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begin : Apr 4 2007
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copyright : (C) 2007 by Baryshev Dmitry
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email : ksquirrel.iv@gmail.com
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***************************************************************************/
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/***************************************************************************
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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 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef SQ_GLSELECTIONPAINTER_H
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#define SQ_GLSELECTIONPAINTER_H
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#include <tqrect.h>
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#include <tqpoint.h>
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class SQ_GLWidget;
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/*
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* This is a selection painter for SQ_GLWidget.
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*
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* Selection can be shown as rectangle and ellipse.
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*
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* Ellipsis selection mainly used in redeye filter.
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*/
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class SQ_GLSelectionPainter
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{
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public:
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enum Type { Rectangle, Ellipse };
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SQ_GLSelectionPainter(SQ_GLWidget *widget);
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~SQ_GLSelectionPainter();
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void setSourceSize(int, int);
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TQPoint center() const;
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void draw();
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/*
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* Set selection type - rectangle or ellipse
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*/
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int type() const;
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/*
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* when selection is drawn and visible, it's valid.
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* After end() it becomes invalid.
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*/
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bool valid() const;
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void setVisible(bool vis);
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void begin(Type tp, int x, int y, bool U = true);
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void move(int x, int y);
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void setGeometry(const TQRect &rc);
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void end();
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/*
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* Selected rectangle geometry
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*/
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TQPoint pos() const;
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TQSize size() const;
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private:
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void drawEllipse(float xradius, float yradius);
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void drawRect();
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void hackXY(int &x, int &y);
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private:
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SQ_GLWidget *w;
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int sourcew, sourceh;
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int sw, sh, sx, sy;
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int angle;
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int xmoveold, ymoveold;
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bool m_valid, m_shown;
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Type m_type;
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};
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inline
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TQPoint SQ_GLSelectionPainter::pos() const
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{
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return valid() ? TQPoint(sourcew/2 + sx, sourceh/2 - sy) : TQPoint();
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}
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inline
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TQSize SQ_GLSelectionPainter::size() const
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{
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return valid() ? TQSize(sw, sh) : TQSize();
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}
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inline
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int SQ_GLSelectionPainter::type() const
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{
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return m_type;
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}
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inline
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void SQ_GLSelectionPainter::setGeometry(const TQRect &rc)
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{
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int X = rc.x(), Y = rc.y();
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hackXY(X, Y);
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sx = X;
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sy = Y;
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sw = rc.width();
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sh = rc.height();
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}
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inline
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void SQ_GLSelectionPainter::setSourceSize(int w, int h)
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{
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sourcew = w;
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sourceh = h;
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}
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inline
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void SQ_GLSelectionPainter::setVisible(bool vis)
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{
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if(m_valid) m_shown = vis;
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}
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inline
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bool SQ_GLSelectionPainter::valid() const
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{
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return m_valid && m_shown;
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}
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inline
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TQPoint SQ_GLSelectionPainter::center() const
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{
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return TQPoint(sx + sw/2, sy - sh/2);
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}
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inline
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void SQ_GLSelectionPainter::hackXY(int &x, int &y)
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{
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x -= sourcew / 2;
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y = sourceh / 2 - y;
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}
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#endif
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