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, 113 insertions, 0 deletions

diff --git a/desktop-widgets/profile/divetextitem.cpp b/desktop-widgets/profile/divetextitem.cpp
new file mode 100644
index 000000000..3bf00d68f
--- /dev/null
+++ b/desktop-widgets/profile/divetextitem.cpp
@@ -0,0 +1,113 @@
+#include "divetextitem.h"
+#include "mainwindow.h"
+#include "profilewidget2.h"
+#include "subsurface-core/color.h"
+
+#include <QBrush>
+
+DiveTextItem::DiveTextItem(QGraphicsItem *parent) : QGraphicsItemGroup(parent),
+	internalAlignFlags(Qt::AlignHCenter | Qt::AlignVCenter),
+	textBackgroundItem(new QGraphicsPathItem(this)),
+	textItem(new QGraphicsPathItem(this)),
+	printScale(1.0),
+	scale(1.0),
+	connected(false)
+{
+	setFlag(ItemIgnoresTransformations);
+	textBackgroundItem->setBrush(QBrush(getColor(TEXT_BACKGROUND)));
+	textBackgroundItem->setPen(Qt::NoPen);
+	textItem->setPen(Qt::NoPen);
+}
+
+void DiveTextItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+	updateText();
+	QGraphicsItemGroup::paint(painter, option, widget);
+}
+
+void DiveTextItem::fontPrintScaleUpdate(double scale)
+{
+	printScale = scale;
+}
+
+void DiveTextItem::setAlignment(int alignFlags)
+{
+	if (alignFlags != internalAlignFlags) {
+		internalAlignFlags = alignFlags;
+	}
+}
+
+void DiveTextItem::setBrush(const QBrush &b)
+{
+	textItem->setBrush(b);
+}
+
+void DiveTextItem::setScale(double newscale)
+{
+	if (scale != newscale) {
+		scale = newscale;
+	}
+}
+
+void DiveTextItem::setText(const QString &t)
+{
+	if (internalText != t) {
+		if (!connected) {
+			if (scene()) {
+				// by now we should be on a scene. grab the profile widget from it and setup our printScale
+				// and connect to the signal that makes sure we keep track if that changes
+				ProfileWidget2 *profile = qobject_cast<ProfileWidget2 *>(scene()->views().first());
+				connect(profile, SIGNAL(fontPrintScaleChanged(double)), this, SLOT(fontPrintScaleUpdate(double)), Qt::UniqueConnection);
+				fontPrintScaleUpdate(profile->getFontPrintScale());
+				connected = true;
+			} else {
+				qDebug() << "called before scene was set up" << t;
+			}
+		}
+		internalText = t;
+		updateText();
+	}
+}
+
+const QString &DiveTextItem::text()
+{
+	return internalText;
+}
+
+void DiveTextItem::updateText()
+{
+	double size;
+	if (internalText.isEmpty()) {
+		return;
+	}
+
+	QFont fnt(qApp->font());
+	if ((size = fnt.pixelSize()) > 0) {
+		// set in pixels - so the scale factor may not make a difference if it's too close to 1
+		size *= scale * printScale;
+		fnt.setPixelSize(size);
+	} else {
+		size = fnt.pointSizeF();
+		size *= scale * printScale;
+		fnt.setPointSizeF(size);
+	}
+	QFontMetrics fm(fnt);
+
+	QPainterPath textPath;
+	qreal xPos = 0, yPos = 0;
+
+	QRectF rect = fm.boundingRect(internalText);
+	yPos = (internalAlignFlags & Qt::AlignTop) ? 0 :
+		(internalAlignFlags & Qt::AlignBottom) ? +rect.height() :
+		/*(internalAlignFlags & Qt::AlignVCenter  ? */ +rect.height() / 4;
+
+	xPos = (internalAlignFlags & Qt::AlignLeft) ? -rect.width() :
+		(internalAlignFlags & Qt::AlignHCenter) ? -rect.width() / 2 :
+		/* (internalAlignFlags & Qt::AlignRight) */ 0;
+
+	textPath.addText(xPos, yPos, fnt, internalText);
+	QPainterPathStroker stroker;
+	stroker.setWidth(3);
+	textBackgroundItem->setPath(stroker.createStroke(textPath));
+	textItem->setPath(textPath);
+}