From b08da94007d7a2e71f932bff67750051c1ad5d65 Mon Sep 17 00:00:00 2001
From: Tomaz Canabrava <tcanabrava@kde.org>
Date: Tue, 21 Jan 2014 17:34:36 -0200
Subject: [PATCH] Draw the Ceiling in red if preferences are marked for that.

This code actually uses the preferences for something. It will show and
hide the calculated ceiling in red if the prefrerences are changed for
that. One bad thing that I did in this commit ( so it was easy to try ) is
that a preference change will redraw the whole graph - not optimized. I'll
make this better in a later commit so that only the affected items will be
redrawn.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
---
 qt-ui/profile/diveprofileitem.cpp | 39 +++++++++++++++++++++++++++++++
 qt-ui/profile/diveprofileitem.h   |  7 ++++++
 qt-ui/profile/profilewidget2.cpp  | 15 +++++++++++-
 qt-ui/profile/profilewidget2.h    |  3 +++
 4 files changed, 63 insertions(+), 1 deletion(-)

diff --git a/qt-ui/profile/diveprofileitem.cpp b/qt-ui/profile/diveprofileitem.cpp
index 5cb064983..bf8af7956 100644
--- a/qt-ui/profile/diveprofileitem.cpp
+++ b/qt-ui/profile/diveprofileitem.cpp
@@ -364,3 +364,42 @@ void DiveCalculatedCeiling::paint(QPainter* painter, const QStyleOptionGraphicsI
 {
 	QGraphicsPolygonItem::paint(painter, option, widget);
 }
+
+
+void DiveReportedCeiling::modelDataChanged()
+{
+	if (!hAxis || !vAxis || !dataModel || hDataColumn == -1 || vDataColumn == -1)
+		return;
+
+	if (prefs.profile_dc_ceiling){
+		setVisible(prefs.profile_red_ceiling);
+	}else{
+		setVisible(false);
+	}
+
+	QPolygonF p;
+	p.append(QPointF(hAxis->posAtValue(0), vAxis->posAtValue(0)));
+	plot_data *entry = dataModel->data();
+	for (int i = 0, count = dataModel->rowCount(); i < count; i++, entry++) {
+		if (entry->in_deco && entry->stopdepth) {
+			if (entry->stopdepth < entry->depth) {
+				p.append(QPointF(hAxis->posAtValue(entry->sec), vAxis->posAtValue(entry->stopdepth)));
+			} else {
+				p.append(QPointF(hAxis->posAtValue(entry->sec), vAxis->posAtValue(entry->depth)));
+			}
+		} else {
+			p.append(QPointF(hAxis->posAtValue(entry->sec), vAxis->posAtValue(0)));
+		}
+	}
+	setPolygon(p);
+	QLinearGradient pat(0, p.boundingRect().top(), 0, p.boundingRect().bottom());
+	pat.setColorAt(0, getColor(CEILING_SHALLOW));
+	pat.setColorAt(1, getColor(CEILING_DEEP));
+	setPen(QPen(QBrush(Qt::NoBrush),0));
+	setBrush(pat);
+}
+
+void DiveReportedCeiling::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
+{
+	QGraphicsPolygonItem::paint(painter, option, widget);
+}
diff --git a/qt-ui/profile/diveprofileitem.h b/qt-ui/profile/diveprofileitem.h
index 9e71eac19..9b737db5e 100644
--- a/qt-ui/profile/diveprofileitem.h
+++ b/qt-ui/profile/diveprofileitem.h
@@ -87,4 +87,11 @@ public:
 	virtual void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget = 0);
 };
 
+class DiveReportedCeiling : public AbstractProfilePolygonItem{
+	Q_OBJECT
+
+public:
+	virtual void modelDataChanged();
+	virtual void paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget = 0);
+};
 #endif
\ No newline at end of file
diff --git a/qt-ui/profile/profilewidget2.cpp b/qt-ui/profile/profilewidget2.cpp
index 790b2c611..b5610e4cf 100644
--- a/qt-ui/profile/profilewidget2.cpp
+++ b/qt-ui/profile/profilewidget2.cpp
@@ -39,7 +39,8 @@ ProfileWidget2::ProfileWidget2(QWidget *parent) :
 	cartesianPlane(new DiveCartesianPlane()),
 	meanDepth(new DiveLineItem()),
 	diveComputerText(new DiveTextItem()),
-	diveCeiling(NULL)
+	diveCeiling(NULL),
+	reportedCeiling(NULL)
 {
 	setScene(new QGraphicsScene());
 	scene()->setSceneRect(0, 0, 100, 100);
@@ -386,6 +387,18 @@ void ProfileWidget2::plotDives(QList<dive*> dives)
 		allTissues.append(tissueItem);
 		scene()->addItem(tissueItem);
 	}
+
+	if(reportedCeiling){
+		scene()->removeItem(reportedCeiling);
+		delete reportedCeiling;
+	}
+	reportedCeiling = new DiveReportedCeiling();
+	reportedCeiling->setHorizontalAxis(timeAxis);
+	reportedCeiling->setVerticalAxis(profileYAxis);
+	reportedCeiling->setModel(dataModel);
+	reportedCeiling->setVerticalDataColumn(DivePlotDataModel::CEILING);
+	reportedCeiling->setHorizontalDataColumn(DivePlotDataModel::TIME);
+	scene()->addItem(reportedCeiling);
 	emit startProfileState();
 }
 
diff --git a/qt-ui/profile/profilewidget2.h b/qt-ui/profile/profilewidget2.h
index 37508cea4..369941930 100644
--- a/qt-ui/profile/profilewidget2.h
+++ b/qt-ui/profile/profilewidget2.h
@@ -16,6 +16,7 @@
 #include "graphicsview-common.h"
 #include "divelineitem.h"
 
+class DiveReportedCeiling;
 class DiveTextItem;
 class TemperatureAxis;
 class DiveEventItem;
@@ -33,6 +34,7 @@ struct DiveTemperatureItem;
 struct plot_info;
 struct DiveGasPressureItem;
 struct DiveCalculatedCeiling;
+struct DiveReportedCeiling;
 
 class ProfileWidget2 : public QGraphicsView {
 	Q_OBJECT
@@ -86,6 +88,7 @@ private:
 	DiveTextItem *diveComputerText;
 	DiveCalculatedCeiling *diveCeiling;
 	QList<DiveCalculatedCeiling*> allTissues;
+	DiveReportedCeiling *reportedCeiling;
 };
 
 #endif