Implement little bit more of scheme and fix connection angle

This commit adds few more bits to scheme but mainly it chnages how
connectors specify angles. Originally it was in radians but we was
mapping that trough mathematical operations directly to sizes. But that
was problematic because of floating point inacuracy and we sometimes
founded intersection where there should be one. So this commit gets rid
of this at all and instead allows just some fixes axes to be used
instead of arbitrary angles.

1 files changed, 29 insertions, 0 deletions

diff --git a/qtmips_gui/coreview/and.h b/qtmips_gui/coreview/and.h
new file mode 100644
index 0000000..ca0af30
--- /dev/null
+++ b/qtmips_gui/coreview/and.h
@@ -0,0 +1,29 @@
+#ifndef COREVIEW_AND_H
+#define COREVIEW_AND_H
+
+#include <QGraphicsItem>
+#include <QVector>
+#include "connection.h"
+
+namespace coreview {
+
+class And : public QGraphicsItem {
+public:
+    And(unsigned size = 2);
+    ~And();
+
+    QRectF boundingRect() const;
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
+
+    void setPos(qreal x, qreal y);
+    const Connector *connector_in(unsigned) const;
+    const Connector *connector_out() const;
+
+private:
+    QVector<Connector*> connectors;
+    Connector* con_out;
+};
+
+}
+
+#endif // COREVIEW_AND_H