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Transform the DiveProfileItem to an Abstract Generalization

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The DiveProfileItem contained much of the complexity and
algorithms for almost all line-based items on the canvas,
so I transformed that to a general abstraction and implemented
a new DiveProfileItem that uses it. this should reduce a
bit of code since the implementation of the PP Graphs, Temperature
Cylinder Pressure and maybe a few others will only need to
reimplement the paint() and the modelDataChanged() methods.
The rest is ready.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Tomaz Canabrava 2014-01-16 16:21:23 -02:00 • committed by Dirk Hohndel
parent 1f80788286
commit 254beef5d4
4 changed files with 37 additions and 27 deletions
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33
qt-ui/profile/diveprofileitem.cpp
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@ -7,43 +7,43 @@
#include <QPainter>
#include <QLinearGradient>
DiveProfileItem::DiveProfileItem(): QObject(), QGraphicsPolygonItem(),
AbstractProfilePolygonItem::AbstractProfilePolygonItem(): QObject(), QGraphicsPolygonItem(),
hAxis(NULL), vAxis(NULL), dataModel(NULL), hDataColumn(-1), vDataColumn(-1)
{
}
void DiveProfileItem::setHorizontalAxis(DiveCartesianAxis* horizontal)
void AbstractProfilePolygonItem::setHorizontalAxis(DiveCartesianAxis* horizontal)
{
hAxis = horizontal;
modelDataChanged();
}
void DiveProfileItem::setHorizontalDataColumn(int column)
void AbstractProfilePolygonItem::setHorizontalDataColumn(int column)
{
hDataColumn = column;
modelDataChanged();
}
void DiveProfileItem::setModel(QAbstractTableModel* model)
void AbstractProfilePolygonItem::setModel(QAbstractTableModel* model)
{
dataModel = model;
modelDataChanged();
}
void DiveProfileItem::setVerticalAxis(DiveCartesianAxis* vertical)
void AbstractProfilePolygonItem::setVerticalAxis(DiveCartesianAxis* vertical)
{
vAxis = vertical;
modelDataChanged();
}
void DiveProfileItem::setVerticalDataColumn(int column)
void AbstractProfilePolygonItem::setVerticalDataColumn(int column)
{
vDataColumn = column;
modelDataChanged();
}
void DiveProfileItem::modelDataChanged()
void AbstractProfilePolygonItem::modelDataChanged()
{
// We don't have enougth data to calculate things, quit.
if (!hAxis || !vAxis || !dataModel || hDataColumn == -1 || vDataColumn == -1)
@ -62,13 +62,6 @@ void DiveProfileItem::modelDataChanged()
poly.append(point);
}
setPolygon(poly);
// This is the blueish gradient that the Depth Profile should have.
// It's a simple QLinearGradient with 2 stops, starting from top to bottom.
QLinearGradient pat(0, poly.boundingRect().top(), 0, poly.boundingRect().bottom());
pat.setColorAt(1, getColor(DEPTH_BOTTOM));
pat.setColorAt(0, getColor(DEPTH_TOP));
setBrush(QBrush(pat));
}
void DiveProfileItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget) {
@ -92,3 +85,15 @@ void DiveProfileItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* o
painter->drawLine(polygon()[i-1],polygon()[i]);
}
}
void DiveProfileItem::modelDataChanged(){
AbstractProfilePolygonItem::modelDataChanged();
if(polygon().isEmpty())
return;
// This is the blueish gradient that the Depth Profile should have.
// It's a simple QLinearGradient with 2 stops, starting from top to bottom.
QLinearGradient pat(0, polygon().boundingRect().top(), 0, polygon().boundingRect().bottom());
pat.setColorAt(1, getColor(DEPTH_BOTTOM));
pat.setColorAt(0, getColor(DEPTH_TOP));
setBrush(QBrush(pat));
}