Move source files into folder

src/PixelAttributes.cpp

@@ -0,0 +1,45 @@
+#include <cstring>
+
+#include "PixelAttributes.h"
+
+PixelAttributes::PixelAttributes():
+	m_width(0)
+{
+	for (size_t i = 0; i < LineCount; ++i) {
+		m_pixelAttributes[i] = nullptr;
+	}
+}
+
+PixelAttributes::~PixelAttributes()
+{
+	freeAttributes();
+}
+
+void PixelAttributes::setWidth(int width)
+{
+	freeAttributes();
+	m_width = width + 1; // 1px gradient calculation
+	for (size_t i = 0; i < LineCount; ++i) {
+		m_pixelAttributes[i] = new PixelAttribute[m_width];
+	}
+}
+
+void PixelAttributes::scroll()
+{
+	size_t lineLength = m_width * sizeof(PixelAttribute);
+	memcpy(m_pixelAttributes[FirstLine], m_pixelAttributes[LastLine], lineLength);
+	for (size_t i = 1; i < LineCount - 1; ++i) {
+		memcpy(m_pixelAttributes[i], m_pixelAttributes[EmptyLine], lineLength);
+	}
+}
+
+void PixelAttributes::freeAttributes()
+{
+	for (size_t i = 0; i < LineCount; ++i) {
+		if (m_pixelAttributes[i] != nullptr) {
+			delete[] m_pixelAttributes[i];
+			m_pixelAttributes[i] = nullptr;
+		}
+	}
+}
+