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#include "ruleritem.h"
#include "divetextitem.h"
#include <QFont>
#include <QFontMetrics>
#include <QPainter>
#include <QGraphicsScene>
#include <QGraphicsView>
#include <QDebug>
#include <stdint.h>
#include "profile.h"
#include "display.h"
RulerNodeItem2::RulerNodeItem2(struct plot_info &info) : pInfo(info), entry(NULL), ruler(NULL)
{
setRect(QRect(QPoint(-8, 8), QPoint(8, -8)));
setBrush(QColor(0xff, 0, 0, 127));
setPen(QColor("#FF0000"));
setFlag(QGraphicsItem::ItemIsMovable);
setFlag(ItemSendsGeometryChanges);
setFlag(ItemIgnoresTransformations);
}
void RulerNodeItem2::setRuler(RulerItem2 *r)
{
ruler = r;
}
void RulerNodeItem2::recalculate()
{
struct plot_data *data = pInfo.entry + (pInfo.nr - 1);
uint16_t count = 0;
if (x() < 0) {
setPos(0, y());
} else if (x() > timeAxis->posAtValue(data->sec)) {
setPos(timeAxis->posAtValue(data->sec), y());
} else {
data = pInfo.entry;
count = 0;
while (timeAxis->posAtValue(data->sec) < x() && count < pInfo.nr) {
data = pInfo.entry + count;
count++;
}
setPos(timeAxis->posAtValue(data->sec), depthAxis->posAtValue(data->depth));
entry = data;
}
}
QVariant RulerNodeItem2::itemChange(GraphicsItemChange change, const QVariant &value)
{
if (change == ItemPositionHasChanged) {
recalculate();
if (ruler != NULL)
ruler->recalculate();
if (scene()) {
scene()->update();
}
}
return QGraphicsEllipseItem::itemChange(change, value);
}
RulerItem2::RulerItem2() : timeAxis(NULL),
depthAxis(NULL),
source(new RulerNodeItem2(pInfo)),
dest(new RulerNodeItem2(pInfo)),
textItem(new QGraphicsSimpleTextItem(this))
{
memset(&pInfo, 0, sizeof(pInfo));
source->setRuler(this);
dest->setRuler(this);
textItem->setFlag(QGraphicsItem::ItemIgnoresTransformations);
}
void RulerItem2::recalculate()
{
char buffer[500];
QPointF tmp;
QFont font;
QFontMetrics fm(font);
if (timeAxis == NULL || depthAxis == NULL || pInfo.nr == 0)
return;
prepareGeometryChange();
startPoint = mapFromItem(source, 0, 0);
endPoint = mapFromItem(dest, 0, 0);
if (startPoint.x() > endPoint.x()) {
tmp = endPoint;
endPoint = startPoint;
startPoint = tmp;
}
QLineF line(startPoint, endPoint);
compare_samples(source->entry, dest->entry, buffer, 500, 1);
text = QString(buffer);
//Draw Text
// This text item ignores transformations, so we cant use
// the line.angle(), we need to calculate the angle based
// on the view.
QGraphicsView *view = scene()->views().first();
QPoint begin = view->mapFromScene(mapToScene(startPoint));
QPoint end = view->mapFromScene(mapToScene(endPoint));
QLineF globalLine(begin, end);
textItem->setText(text);
textItem->resetMatrix();
textItem->resetTransform();
textItem->setPos(startPoint);
textItem->rotate(globalLine.angle() * -1);
}
RulerNodeItem2 *RulerItem2::sourceNode() const
{
return source;
}
RulerNodeItem2 *RulerItem2::destNode() const
{
return dest;
}
void RulerItem2::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
Q_UNUSED(option);
Q_UNUSED(widget);
QLineF line(startPoint, endPoint);
painter->setPen(QColor(Qt::black));
painter->setBrush(Qt::NoBrush);
painter->drawLine(line);
}
QRectF RulerItem2::boundingRect() const
{
return shape().controlPointRect();
}
QPainterPath RulerItem2::shape() const
{
QPainterPath path;
QLineF line(startPoint, endPoint);
QLineF line_n = line.normalVector();
line_n.setLength(height);
if (paint_direction == 1)
line_n.setAngle(line_n.angle() + 180);
path.moveTo(startPoint);
path.lineTo(line_n.p2());
path.lineTo(line_n.p2() + QPointF(line.dx(), line.dy()));
path.lineTo(endPoint);
path.lineTo(startPoint);
return path;
}
void RulerItem2::setPlotInfo(plot_info info)
{
pInfo = info;
recalculate();
dest->recalculate();
source->recalculate();
}
void RulerItem2::setAxis(DiveCartesianAxis *time, DiveCartesianAxis *depth)
{
timeAxis = time;
depthAxis = depth;
dest->depthAxis = depth;
dest->timeAxis = time;
source->depthAxis = depth;
source->timeAxis = time;
recalculate();
}
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