Added missing source file

src/textitem.cpp

@@ -0,0 +1,35 @@
+#include "textitem.h"
+
+bool TextItem::collidesWithItem(const TextItem *other) const
+{
+	QRectF r1(boundingRect());
+	QRectF r2(other->boundingRect());
+
+	if (r1.isEmpty() || r2.isEmpty() || !r1.intersects(r2))
+		return false;
+
+	return other->shape().intersects(shape());
+}
+
+int TextItem::avgCharWidth() const
+{
+	qreal ratio;
+	ushort cp = _text.at(0).unicode();
+
+	// CJK & East Asian scripts
+	if (cp >= 0x2E80)
+		ratio = 1.0;
+	// Greek & Cyrilic
+	else if (cp >= 0x03FF && cp <= 0x04FF) {
+		ratio = (_font.capitalization() == QFont::AllUppercase) ? 0.75 : 0.67;
+		if (_font.bold())
+			ratio *= 1.1;
+	// The rest (Latin scripts, Arabic, ...)
+	} else {
+		ratio = (_font.capitalization() == QFont::AllUppercase) ? 0.7 : 0.55;
+		if (_font.bold())
+			ratio *= 1.1;
+	}
+
+	return ratio * _font.pixelSize();
+}