Added a DiveEventItem that knows how to handle itself.

Simply pass a event to the item and it will know what
to do. The sad part is that this isn't true yet - there's
quite a bit of boilerplate that a lot of the items are needing,
but the good part is that the boolerplate is the same in
all of the items, which means that I can create a tiny bit
of abstraction to encapsulate it and the code will be
way smaller to setup the items on the canvas.

Right now the items are being correctly placed on the
right places. It doesn't supports hidding / showing yet.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 123 insertions, 0 deletions

diff --git a/qt-ui/profile/diveeventitem.cpp b/qt-ui/profile/diveeventitem.cpp
new file mode 100644
index 000000000..a6153f96f
--- /dev/null
+++ b/qt-ui/profile/diveeventitem.cpp
@@ -0,0 +1,123 @@
+#include "diveeventitem.h"
+#include "diveplotdatamodel.h"
+#include "divecartesianaxis.h"
+#include "dive.h"
+#include <QDebug>
+
+DiveEventItem::DiveEventItem(QObject* parent): DivePixmapItem(parent),
+	vAxis(NULL), hAxis(NULL), internalEvent(NULL), dataModel(NULL)
+{
+	setFlag(ItemIgnoresTransformations);
+}
+
+
+void DiveEventItem::setHorizontalAxis(DiveCartesianAxis* axis)
+{
+	hAxis = axis;
+	recalculate();
+}
+
+void DiveEventItem::setModel(DivePlotDataModel* model)
+{
+	dataModel = model;
+	recalculate();
+}
+
+void DiveEventItem::setVerticalAxis(DiveCartesianAxis* axis)
+{
+	vAxis = axis;
+	recalculate();
+}
+
+void DiveEventItem::setEvent(struct event* ev)
+{
+	internalEvent = ev;
+	setupPixmap();
+	setupToolTipString();
+	recalculate();
+}
+
+void DiveEventItem::setupPixmap()
+{
+#define EVENT_PIXMAP( PIX ) QPixmap(QString(PIX)).scaled(20, 20, Qt::KeepAspectRatio, Qt::SmoothTransformation)
+	if(!internalEvent->name){
+		setPixmap(EVENT_PIXMAP(":warning"));
+	} else if ((strcmp(internalEvent->name, "bookmark") == 0)) {
+		setPixmap(EVENT_PIXMAP(":flag"));
+	} else if(strcmp(internalEvent->name, "heading") == 0){
+		setPixmap(EVENT_PIXMAP(":flag"));
+	} else {
+		setPixmap(EVENT_PIXMAP(":warning"));
+	}
+#undef EVENT_PIXMAP
+}
+
+void DiveEventItem::setupToolTipString()
+{
+	//TODO Fix this. :)
+#if 0
+	This needs to be redone, but right now the events are being plotted and I liked pretty much the code.
+
+	struct dive *dive = getDiveById(diveId);
+	Q_ASSERT(dive != NULL);
+	EventItem *item = new EventItem(ev, 0, isGrayscale);
+	item->setPos(x, y);
+	scene()->addItem(item);
+
+	/* we display the event on screen - so translate (with the correct context for events) */
+	QString name = gettextFromC::instance()->tr(ev->name);
+	if (ev->value) {
+		if (ev->name && strcmp(ev->name, "gaschange") == 0) {
+			int he = get_he(&dive->cylinder[entry->cylinderindex].gasmix);
+			int o2 = get_o2(&dive->cylinder[entry->cylinderindex].gasmix);
+
+			name += ": ";
+			if (he)
+				name += QString("%1/%2").arg((o2 + 5) / 10).arg((he + 5) / 10);
+			else if (is_air(o2, he))
+				name += tr("air");
+			else
+				name += QString(tr("EAN%1")).arg((o2 + 5) / 10);
+
+		} else if (ev->name && !strcmp(ev->name, "SP change")) {
+			name += QString(":%1").arg((double) ev->value / 1000);
+		} else {
+			name += QString(":%1").arg(ev->value);
+		}
+	} else if (ev->name && name == "SP change") {
+		name += "\n" + tr("Bailing out to OC");
+	} else {
+		name += ev->flags == SAMPLE_FLAGS_BEGIN ? tr(" begin", "Starts with space!") :
+				ev->flags == SAMPLE_FLAGS_END ? tr(" end", "Starts with space!") : "";
+	}
+
+	//item->setToolTipController(toolTip);
+	//item->addToolTip(name);
+	item->setToolTip(name);
+#endif
+}
+
+void DiveEventItem::eventVisibilityChanged(const QString& eventName, bool visible)
+{
+
+}
+
+void DiveEventItem::recalculate()
+{
+	if (!vAxis || !hAxis || !internalEvent || !dataModel){
+		return;
+	}
+	qDebug() << "Calculating.";
+	QModelIndexList result = dataModel->match(dataModel->index(0,DivePlotDataModel::TIME), Qt::DisplayRole, internalEvent->time.seconds );
+	if(result.isEmpty()){
+		hide();
+		return;
+	}
+	if(!isVisible()){
+		show();
+	}
+	int depth = dataModel->data(dataModel->index(result.first().row(), DivePlotDataModel::DEPTH)).toInt();
+	qreal x = hAxis->posAtValue(internalEvent->time.seconds);
+	qreal y = vAxis->posAtValue(depth);
+	setPos(x, y);
+}