Move qt-ui to desktop-widgets

Since we have now destkop and mobile versions, 'qt-ui' was a very
poor name choice for a folder that contains only destkop-enabled
widgets.

Also, move the graphicsview-common.h/cpp to subsurface-core because
it doesn't depend on qgraphicsview, it merely implements all the
colors that we use throughout Subsurface, and we will use colors on both
desktop and mobile versions

Same thing applies for metrics.h/cpp

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 172 insertions, 0 deletions

diff --git a/desktop-widgets/profile/diveeventitem.cpp b/desktop-widgets/profile/diveeventitem.cpp
new file mode 100644
index 000000000..0bbc84267
--- /dev/null
+++ b/desktop-widgets/profile/diveeventitem.cpp
@@ -0,0 +1,172 @@
+#include "diveeventitem.h"
+#include "diveplotdatamodel.h"
+#include "divecartesianaxis.h"
+#include "animationfunctions.h"
+#include "libdivecomputer.h"
+#include "profile.h"
+#include "gettextfromc.h"
+#include "metrics.h"
+
+extern struct ev_select *ev_namelist;
+extern int evn_used;
+
+DiveEventItem::DiveEventItem(QObject *parent) : DivePixmapItem(parent),
+	vAxis(NULL),
+	hAxis(NULL),
+	dataModel(NULL),
+	internalEvent(NULL)
+{
+	setFlag(ItemIgnoresTransformations);
+}
+
+
+void DiveEventItem::setHorizontalAxis(DiveCartesianAxis *axis)
+{
+	hAxis = axis;
+	recalculatePos(true);
+}
+
+void DiveEventItem::setModel(DivePlotDataModel *model)
+{
+	dataModel = model;
+	recalculatePos(true);
+}
+
+void DiveEventItem::setVerticalAxis(DiveCartesianAxis *axis)
+{
+	vAxis = axis;
+	recalculatePos(true);
+	connect(vAxis, SIGNAL(sizeChanged()), this, SLOT(recalculatePos()));
+}
+
+struct event *DiveEventItem::getEvent()
+{
+	return internalEvent;
+}
+
+void DiveEventItem::setEvent(struct event *ev)
+{
+	if (!ev)
+		return;
+	internalEvent = ev;
+	setupPixmap();
+	setupToolTipString();
+	recalculatePos(true);
+}
+
+void DiveEventItem::setupPixmap()
+{
+	const IconMetrics& metrics = defaultIconMetrics();
+	int sz_bigger = metrics.sz_med + metrics.sz_small; // ex 40px
+	int sz_pix = sz_bigger/2; // ex 20px
+
+#define EVENT_PIXMAP(PIX) QPixmap(QString(PIX)).scaled(sz_pix, sz_pix, Qt::KeepAspectRatio, Qt::SmoothTransformation)
+#define EVENT_PIXMAP_BIGGER(PIX) QPixmap(QString(PIX)).scaled(sz_bigger, sz_bigger, Qt::KeepAspectRatio, Qt::SmoothTransformation)
+	if (same_string(internalEvent->name, "")) {
+		setPixmap(EVENT_PIXMAP(":warning"));
+	} else if (internalEvent->type == SAMPLE_EVENT_BOOKMARK) {
+		setPixmap(EVENT_PIXMAP(":flag"));
+	} else if (strcmp(internalEvent->name, "heading") == 0 ||
+		   (same_string(internalEvent->name, "SP change") && internalEvent->time.seconds == 0)) {
+		// 2 cases:
+		// a) some dive computers have heading in every sample
+		// b) at t=0 we might have an "SP change" to indicate dive type
+		// in both cases we want to get the right data into the tooltip but don't want the visual clutter
+		// so set an "almost invisible" pixmap (a narrow but somewhat tall, basically transparent pixmap)
+		// that allows tooltips to work when we don't want to show a specific
+		// pixmap for an event, but want to show the event value in the tooltip
+		QPixmap transparentPixmap(4, 20);
+		transparentPixmap.fill(QColor::fromRgbF(1.0, 1.0, 1.0, 0.01));
+		setPixmap(transparentPixmap);
+	} else if (event_is_gaschange(internalEvent)) {
+		if (internalEvent->gas.mix.he.permille)
+			setPixmap(EVENT_PIXMAP_BIGGER(":gaschangeTrimix"));
+		else if (gasmix_is_air(&internalEvent->gas.mix))
+			setPixmap(EVENT_PIXMAP_BIGGER(":gaschangeAir"));
+		else
+			setPixmap(EVENT_PIXMAP_BIGGER(":gaschangeNitrox"));
+	} else {
+		setPixmap(EVENT_PIXMAP(":warning"));
+	}
+#undef EVENT_PIXMAP
+}
+
+void DiveEventItem::setupToolTipString()
+{
+	// we display the event on screen - so translate
+	QString name = gettextFromC::instance()->tr(internalEvent->name);
+	int value = internalEvent->value;
+	int type = internalEvent->type;
+	if (value) {
+		if (event_is_gaschange(internalEvent)) {
+			name += ": ";
+			name += gasname(&internalEvent->gas.mix);
+
+			/* Do we have an explicit cylinder index?  Show it. */
+			if (internalEvent->gas.index >= 0)
+				name += QString(" (cyl %1)").arg(internalEvent->gas.index+1);
+		} else if (type == SAMPLE_EVENT_PO2 && name == "SP change") {
+			name += QString(":%1").arg((double)value / 1000);
+		} else {
+			name += QString(":%1").arg(value);
+		}
+	} else if (type == SAMPLE_EVENT_PO2 && name == "SP change") {
+		// this is a bad idea - we are abusing an existing event type that is supposed to
+		// warn of high or low pO₂ and are turning it into a set point change event
+		name += "\n" + tr("Manual switch to OC");
+	} else {
+		name += internalEvent->flags == SAMPLE_FLAGS_BEGIN ? tr(" begin", "Starts with space!") :
+								     internalEvent->flags == SAMPLE_FLAGS_END ? tr(" end", "Starts with space!") : "";
+	}
+	// qDebug() << name;
+	setToolTip(name);
+}
+
+void DiveEventItem::eventVisibilityChanged(const QString &eventName, bool visible)
+{
+}
+
+bool DiveEventItem::shouldBeHidden()
+{
+	struct event *event = internalEvent;
+
+	/*
+	 * Some gas change events are special. Some dive computers just tell us the initial gas this way.
+	 * Don't bother showing those
+	 */
+	struct sample *first_sample = &get_dive_dc(&displayed_dive, dc_number)->sample[0];
+	if (!strcmp(event->name, "gaschange") &&
+	    (event->time.seconds == 0 ||
+	     (first_sample && event->time.seconds == first_sample->time.seconds)))
+		return true;
+
+	for (int i = 0; i < evn_used; i++) {
+		if (!strcmp(event->name, ev_namelist[i].ev_name) && ev_namelist[i].plot_ev == false)
+			return true;
+	}
+	return false;
+}
+
+void DiveEventItem::recalculatePos(bool instant)
+{
+	if (!vAxis || !hAxis || !internalEvent || !dataModel)
+		return;
+
+	QModelIndexList result = dataModel->match(dataModel->index(0, DivePlotDataModel::TIME), Qt::DisplayRole, internalEvent->time.seconds);
+	if (result.isEmpty()) {
+		Q_ASSERT("can't find a spot in the dataModel");
+		hide();
+		return;
+	}
+	if (!isVisible() && !shouldBeHidden())
+		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);
+	if (!instant)
+		Animations::moveTo(this, x, y);
+	else
+		setPos(x, y);
+	if (isVisible() && shouldBeHidden())
+		hide();
+}