Added ( finally ) the code to reduce depth on the planner

Added the code to reduce depth on the planner. Depth
cannot be lower than 40m and it also won't let the
user reduce if there's any point on the 'reduced' area.
the icon is ugly - we need an artist.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>

1 files changed, 39 insertions, 0 deletions

diff --git a/qt-ui/diveplanner.cpp b/qt-ui/diveplanner.cpp
index 1cabdfacf..74851cef0 100644
--- a/qt-ui/diveplanner.cpp
+++ b/qt-ui/diveplanner.cpp
@@ -110,6 +110,20 @@ DivePlannerGraphics::DivePlannerGraphics(QWidget* parent): QGraphicsView(parent)
 	scene()->addItem(plusTime);
 	connect(plusTime, SIGNAL(clicked()), this, SLOT(increaseTime()));
 
+	lessDepth = new Button();
+	lessDepth->setPixmap(QPixmap(":minimum"));
+	lessDepth->setPos(fromPercent(2, Qt::Horizontal), fromPercent(5, Qt::Vertical));
+	lessDepth->setToolTip("Decreases maximum depth by 10m");
+	scene()->addItem(lessDepth);
+	connect(lessDepth, SIGNAL(clicked()), this, SLOT(decreaseDepth()));
+
+	lessTime = new Button();
+	lessTime->setPixmap(QPixmap(":minimum"));
+	lessTime->setPos(fromPercent(92, Qt::Horizontal), fromPercent(95, Qt::Vertical));
+	lessTime->setToolTip("Decreases minimum dive time by 10m");
+	scene()->addItem(lessTime);
+	connect(lessTime, SIGNAL(clicked()), this, SLOT(decreaseTime()));
+
 	okBtn = new Button();
 	okBtn->setText(tr("Ok"));
 	okBtn->setPos(fromPercent(1, Qt::Horizontal), fromPercent(95, Qt::Vertical));
@@ -295,6 +309,31 @@ void DivePlannerGraphics::increaseTime()
 	createDecoStops();
 }
 
+void DivePlannerGraphics::decreaseDepth()
+{
+	if (depthLine->maximum() - 10 < MIN_DEEPNESS)
+		return;
+
+	Q_FOREACH(DiveHandler *d, handles){
+		if (depthLine->valueAt(d->pos()) > depthLine->maximum() - 10){
+			QMessageBox::warning(mainWindow(),
+				tr("Handler Position Error"),
+				tr("One or more of your stops will be lost with this operations, \n"
+					"Please, remove them first."));
+			return;
+		}
+	}
+
+	depthLine->setMaximum(depthLine->maximum() - 10);
+	depthLine->updateTicks();
+	createDecoStops();
+}
+
+void DivePlannerGraphics::decreaseTime()
+{
+
+}
+
 void DivePlannerGraphics::mouseDoubleClickEvent(QMouseEvent* event)
 {
 	QPointF mappedPos = mapToScene(event->pos());