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Added a ruler which can be dragged along the profile

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This patch adds a ruler QGraphicsItem which can be dragged
along the profile. The ruler displays minimum, maximum and
average for depth and speed (ascent/descent rate). Also, all used
gas will be displayed.

This also adds a new attribute to struct plot_data to store the
speed (not just as velocity_t).

Signed-off-by: Maximilian Güntner <maximilian.guentner@gmail.com>
This commit is contained in:
Maximilian Güntner 2013-09-25 02:07:07 +02:00
parent 3312c9a3a4
commit 248f1b86d1
5 changed files with 411 additions and 8 deletions
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50
qt-ui/profilegraphics.h
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@ -57,6 +57,49 @@ private:
QRectF nextRectangle;
};
class RulerItem;
class RulerNodeItem : public QObject, public QGraphicsEllipseItem
{
Q_OBJECT
friend class RulerItem;
public:
explicit RulerNodeItem(QGraphicsItem* parent, graphics_context gc);
void setRuler(RulerItem *r);
void recalculate();
protected:
QVariant itemChange(GraphicsItemChange change, const QVariant & value );
private:
graphics_context gc;
struct plot_data *entry;
RulerItem* ruler;
};
class RulerItem : public QGraphicsObject
{
Q_OBJECT
public:
explicit RulerItem(QGraphicsItem* parent,
RulerNodeItem *sourceMarker,
RulerNodeItem *destMarker);
void recalculate();
RulerNodeItem* sourceNode() const;
RulerNodeItem* destNode() const;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget * widget = 0);
QRectF boundingRect() const;
QPainterPath shape() const;
private:
QPointF startPoint, endPoint;
RulerNodeItem *source, *dest;
QString text;
int height;
int paint_direction;
};
class EventItem : public QGraphicsPolygonItem
{
public:
@ -128,6 +171,10 @@ private:
void plot_pp_text();
void plot_depth_scale();
void create_ruler();
void add_ruler();
void remove_ruler();
QColor getColor(const color_indice_t i);
QColor get_sac_color(int sac, int avg_sac);
void scrollViewTo(const QPoint pos);
@ -139,6 +186,8 @@ private:
struct dive *dive;
struct divecomputer *diveDC;
int zoomLevel;
bool rulerEnabled;
bool printMode;
bool isGrayscale;
@ -147,6 +196,7 @@ private:
QGraphicsItem* timeMarkers;
QGraphicsItem* depthMarkers;
QGraphicsItem* diveComputer;
RulerItem *rulerItem;
// For 'Plan' mode.:
GraphicsTextEditor *depthEditor;