#include "logicblock.h" #include using namespace coreview; ////////////////////// #define GAP 3 #define RADIUS GAP #define LINE_OFFSET 1 #define PENW 1 ////////////////////// LogicBlock::LogicBlock(QString name) : LogicBlock(QVector({name})) { } LogicBlock::LogicBlock(QVector name) : QGraphicsItem(nullptr) { QFont font; font.setPointSize(7); qreal h = 0, w = 0; for (int i = 0; i < name.size(); i++) { QGraphicsSimpleTextItem *t = new QGraphicsSimpleTextItem(name[i], this); t->setFont(font); text.append(t); QRectF t_box = t->boundingRect(); t->setPos(-t_box.width()/2, h + LINE_OFFSET); h += t_box.height() + LINE_OFFSET; if (w < t_box.width()) w = t_box.width(); } box = QRectF(-w/2 - GAP, -GAP, w + (2*GAP), h + (2*GAP)); } LogicBlock::~LogicBlock() { for (int i = 0; i < connectors.size(); i++) delete connectors[i].con; for (int i = 0; i < text.size(); i++) delete text[i]; } QRectF LogicBlock::boundingRect() const { return QRectF(box.x() - PENW/2, box.y() - PENW/2, box.width() + PENW, box.height() + PENW); } void LogicBlock::paint(QPainter *painter, const QStyleOptionGraphicsItem *option __attribute__((unused)), QWidget *widget __attribute__((unused))) { painter->drawRoundedRect(box, RADIUS, RADIUS); } void LogicBlock::setPos(qreal x, qreal y) { QGraphicsItem::setPos(x, y); for (int i = 0; i < connectors.size(); i++) { struct Con &c = connectors[i]; c.con->setPos(x + c.p.x(), y + c.p.y()); } } void LogicBlock::setSize(qreal width, qreal height) { box.setX(-width/2 - GAP); box.setWidth(width + (2*GAP)); box.setHeight(height + (2*GAP)); for (int i = 0; i < connectors.size(); i++) { // Update point for all connectors struct Con &c = connectors[i]; c.p = con_pos(c.x, c.y); } setPos(x(), y()); } static qreal sign(qreal v) { // This intentionally doesn't return 0 on v == 0 return (0 <= v) - (0 > v); } const Connector *LogicBlock::new_connector(qreal x, qreal y) { // stick to closest edge if (fabs(x) > fabs(y)) x = sign(x); else y = sign(y); // Note: we are using here that 0 and M_PI is same angle but different orientation (but we ignore orientation for now) Connector *c = new Connector(fabs(x) > fabs(y) ? Connector::AX_X : Connector::AX_Y); connectors.append({ .con = c, .x = x, .y = y, .p = con_pos(x, y) }); setPos(this->x(), this->y()); // Update connector position return c; } QPointF LogicBlock::con_pos(qreal x, qreal y) { qreal px, py; px = (box.right() - GAP) * x; py = (box.bottom()/2 - GAP) * (y + 1) + GAP; if (fabs(x) == 1) px += GAP * sign(x); if (fabs(y) == 1) py += GAP * sign(y); return QPointF(px, py); }