1 files changed, 88 insertions, 0 deletions
diff --git a/Swift/QtUI/Whiteboard/FreehandLineItem.cpp b/Swift/QtUI/Whiteboard/FreehandLineItem.cpp
new file mode 100644
index 0000000..3dc42a7
--- /dev/null
+++ b/Swift/QtUI/Whiteboard/FreehandLineItem.cpp
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2012 Mateusz Piękos
+ * Licensed under the simplified BSD license.
+ * See Documentation/Licenses/BSD-simplified.txt for more information.
+ */
+
+#include "FreehandLineItem.h"
+
+
+namespace Swift {
+	FreehandLineItem::FreehandLineItem(QGraphicsItem* parent) : QGraphicsItem(parent) {
+	}
+
+	QRectF FreehandLineItem::boundingRect() const
+	{
+		return boundRect;
+	}
+
+	void FreehandLineItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
+	{
+		painter->setPen(_pen);
+		if (points.size() > 0) {
+			QVector<QPointF>::const_iterator it = points.begin();
+			QPointF previous = *it;
+			++it;
+			for (; it != points.end(); ++it) {
+				painter->drawLine(previous, *it);
+				previous = *it;
+			}
+		}
+	}
+
+	void FreehandLineItem::setStartPoint(QPointF point)
+	{
+		points.clear();
+		points.append(point);
+		QRectF rect(point, point);
+		boundRect = rect;
+		update(rect);
+	}
+
+	void FreehandLineItem::lineTo(QPointF point)
+	{
+		qreal x1, x2, y1, y2;
+		x1 = points.last().x();
+		x2 = point.x();
+		y1 = points.last().y();
+		y2 = point.y();
+		if (x1 > x2) {
+			qreal temp = x1;
+			x1 = x2;
+			x2 = temp;
+		}
+		if (y1 > y2) {
+			qreal temp = y1;
+			y1 = y2;
+			y2 = temp;
+		}
+		QRectF rect(x1-1, y1-1, x2+1-x1, y2+1-y1);
+
+		points.append(point);
+
+		boundRect |= rect;
+		update(rect);
+	}
+
+	bool FreehandLineItem::collidesWithPath(const QPainterPath& path, Qt::ItemSelectionMode mode) const
+	{
+		QVector<QPointF>::const_iterator it;
+		QSizeF size(1,1);
+		for (it = points.begin(); it != points.end(); ++it)	{
+			if (path.intersects(QRectF(*it, size))) { 
+				return true;
+			}
+		}
+		return false;
+	}
+
+	void FreehandLineItem::setPen(const QPen& pen)
+	{
+		_pen = pen;
+	}
+
+	QPen FreehandLineItem::pen() const
+	{
+		return _pen;
+	}
+}