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#include "diveplanner.h"
#include <QMouseEvent>
#include <QDebug>
DivePlanner* DivePlanner::instance()
{
static DivePlanner *self = new DivePlanner();
return self;
}
DivePlanner::DivePlanner(QWidget* parent): QGraphicsView(parent), activeDraggedHandler(0)
{
setMouseTracking(true);
setScene( new QGraphicsScene());
scene()->setSceneRect(0,0,100,100);
verticalLine = new QGraphicsLineItem(0,0,0, 100);
verticalLine->setPen(QPen(Qt::DotLine));
scene()->addItem(verticalLine);
horizontalLine = new QGraphicsLineItem(0,0,100,0);
horizontalLine->setPen(QPen(Qt::DotLine));
scene()->addItem(horizontalLine);
}
void DivePlanner::mouseDoubleClickEvent(QMouseEvent* event)
{
QPointF mappedPos = mapToScene(event->pos());
if(isPointOutOfBoundaries(mappedPos))
return;
if(handles.count() && handles.last()->x() > mappedPos.x()){
return;
}
DiveHandler *item = new DiveHandler ();
item->setRect(-5,-5,10,10);
item->setFlag(QGraphicsItem::ItemIgnoresTransformations);
item->setPos( mappedPos );
scene()->addItem(item);
handles << item;
if (lines.empty()){
QGraphicsLineItem *first = new QGraphicsLineItem(0,0, mappedPos.x(), mappedPos.y());
item->from = first;
lines.push_back(first);
create_deco_stop();
scene()->addItem(first);
}else{
clear_generated_deco();
DiveHandler *prevHandle = handles.at( handles.count()-2);
QGraphicsLineItem *line = new QGraphicsLineItem(prevHandle->x(), prevHandle->y(), item->x(), item->y());
prevHandle->to = line;
item->from = line;
lines.push_back(line);
scene()->addItem(line);
create_deco_stop();
}
}
void DivePlanner::clear_generated_deco()
{
for(int i = handles.count(); i <= lines.count(); i++){
scene()->removeItem(lines.last());
delete lines.last();
lines.removeLast();
}
}
void DivePlanner::create_deco_stop()
{
// this needs to create everything
// for the calculated deco. it should return the *first*
// line that's calculated, so the
QGraphicsLineItem *item = new QGraphicsLineItem(handles.last()->x(), handles.last()->y(), 100, 0);
scene()->addItem(item);
lines << item;
}
void DivePlanner::resizeEvent(QResizeEvent* event)
{
QGraphicsView::resizeEvent(event);
fitInView(sceneRect(), Qt::KeepAspectRatio);
}
void DivePlanner::showEvent(QShowEvent* event)
{
QGraphicsView::showEvent(event);
fitInView(sceneRect(), Qt::KeepAspectRatio);
}
void DivePlanner::mouseMoveEvent(QMouseEvent* event)
{
QPointF mappedPos = mapToScene(event->pos());
if (isPointOutOfBoundaries(mappedPos))
return;
verticalLine->setLine(mappedPos.x(), 0, mappedPos.x(), 100);
horizontalLine->setLine(0, mappedPos.y(), 100, mappedPos.y());
if (activeDraggedHandler){
int idx = handles.indexOf(activeDraggedHandler);
activeDraggedHandler->setPos(mappedPos);
if (activeDraggedHandler->from){
QLineF f = activeDraggedHandler->from->line();
activeDraggedHandler->from->setLine(f.x1(), f.y1(), mappedPos.x(), mappedPos.y());
}
if(activeDraggedHandler == handles.last()){
clear_generated_deco();
create_deco_stop();
}
if (activeDraggedHandler->to){
QLineF f = activeDraggedHandler->to->line();
activeDraggedHandler->to->setLine(mappedPos.x(), mappedPos.y(), f.x2(), f.y2());
}
}
if (!handles.count())
return;
if (handles.last()->x() > mappedPos.x()){
verticalLine->setPen( QPen(QBrush(Qt::red), 0, Qt::SolidLine));
horizontalLine->setPen( QPen(QBrush(Qt::red), 0, Qt::SolidLine));
}else{
verticalLine->setPen(QPen(Qt::DotLine));
horizontalLine->setPen(QPen(Qt::DotLine));
}
}
bool DivePlanner::isPointOutOfBoundaries(QPointF point)
{
if (point.x() > sceneRect().width()
|| point.x() < 0
|| point.y() < 0
|| point.y() > sceneRect().height())
{
return true;
}
return false;
}
void DivePlanner::mousePressEvent(QMouseEvent* event)
{
QPointF mappedPos = mapToScene(event->pos());
Q_FOREACH(QGraphicsItem *item, scene()->items(mappedPos)){
if (DiveHandler *h = qgraphicsitem_cast<DiveHandler*>(item)){
activeDraggedHandler = h;
activeDraggedHandler->setBrush(Qt::red);
}
}
}
void DivePlanner::mouseReleaseEvent(QMouseEvent* event)
{
if (activeDraggedHandler)
activeDraggedHandler = 0;
}
DiveHandler::DiveHandler(): QGraphicsEllipseItem(), from(0), to(0)
{
}
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