1 files changed, 151 insertions, 0 deletions
diff --git a/src/ksquirrelpart/sq_glselectionpainter.h b/src/ksquirrelpart/sq_glselectionpainter.h
new file mode 100644
index 0000000..ea39286
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+++ b/src/ksquirrelpart/sq_glselectionpainter.h
@@ -0,0 +1,151 @@
+/***************************************************************************
+                          sq_glselectionpainter.h  -  description
+                             -------------------
+    begin                : Apr 4 2007
+    copyright            : (C) 2007 by Baryshev Dmitry
+    email                : [email protected]
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef SQ_GLSELECTIONPAINTER_H
+#define SQ_GLSELECTIONPAINTER_H
+
+#include <tqrect.h>
+#include <tqpoint.h>
+
+class SQ_GLWidget;
+
+/*
+ *  This is a selection painter for SQ_GLWidget.
+ *
+ *  Selection can be shown as rectangle and ellipse.
+ *
+ *  Ellipsis selection mainly used in redeye filter.
+ */
+
+class SQ_GLSelectionPainter
+{
+    public:
+        enum Type { Rectangle, Ellipse };
+
+        SQ_GLSelectionPainter(SQ_GLWidget *widget);
+        ~SQ_GLSelectionPainter();
+
+        void setSourceSize(int, int);
+
+        TQPoint center() const;
+
+        void draw();
+
+        /*
+         *  Set selection type - rectangle or ellipse
+         */
+        int type() const;
+
+        /*
+         *  when selection is drawn and visible, it's valid.
+         *  After end() it becomes invalid.
+         */
+        bool valid() const;
+
+        void setVisible(bool vis);
+
+        void begin(Type tp, int x, int y, bool U = true);
+        void move(int x, int y);
+        void setGeometry(const TQRect &rc);
+        void end();
+
+        /*
+         *  Selected rectangle geometry
+         */
+        TQPoint pos() const;
+        TQSize size() const;
+
+    private:
+        void drawEllipse(float xradius, float yradius);
+        void drawRect();
+        void hackXY(int &x, int &y);
+
+    private:
+        SQ_GLWidget *w;
+        int       sourcew, sourceh;
+        int       sw, sh, sx, sy;
+
+        int       angle;
+        int       xmoveold, ymoveold;
+        bool      m_valid, m_shown;
+        Type      m_type;
+};
+
+inline
+TQPoint SQ_GLSelectionPainter::pos() const
+{
+    return valid() ? TQPoint(sourcew/2 + sx, sourceh/2 - sy) : TQPoint();
+}
+
+inline
+TQSize SQ_GLSelectionPainter::size() const
+{
+    return valid() ? TQSize(sw, sh) : TQSize();
+}
+
+inline
+int SQ_GLSelectionPainter::type() const
+{
+    return m_type;
+}
+
+inline
+void SQ_GLSelectionPainter::setGeometry(const TQRect &rc)
+{
+    int X = rc.x(), Y = rc.y();
+
+    hackXY(X, Y);
+
+    sx = X;
+    sy = Y;
+    sw = rc.width();
+    sh = rc.height();
+}
+
+inline
+void SQ_GLSelectionPainter::setSourceSize(int w, int h)
+{
+    sourcew = w;
+    sourceh = h;
+}
+
+inline
+void SQ_GLSelectionPainter::setVisible(bool vis)
+{
+    if(m_valid) m_shown = vis;
+}
+
+inline
+bool SQ_GLSelectionPainter::valid() const
+{
+    return m_valid && m_shown;
+}
+
+inline
+TQPoint SQ_GLSelectionPainter::center() const
+{
+    return TQPoint(sx + sw/2, sy - sh/2);
+}
+
+inline
+void SQ_GLSelectionPainter::hackXY(int &x, int &y)
+{
+    x -= sourcew / 2;
+    y =  sourceh / 2 - y;
+}
+
+#endif