#ifndef PROFILEGRAPHICS_H
#define PROFILEGRAPHICS_H

#include "graphicsview-common.h"
#include "../display.h"
#include <QGraphicsView>
#include <QGraphicsItem>
#include <QIcon>
#include <QDoubleSpinBox>
#include <QPushButton>
#include <QGraphicsProxyWidget>

struct graphics_context;
struct plot_info;
class RulerItem;
class ToolTipItem;

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 QGraphicsPixmapItem {
public:
	explicit EventItem(struct event *ev, QGraphicsItem *parent = 0, bool grayscale = false);
	struct event *ev;

private:
	QString text;
	bool isGrayscale;

	QColor getColor(const color_indice_t i);
};

class GraphicsTextEditor : public QGraphicsTextItem {
	Q_OBJECT
public:
	GraphicsTextEditor(QGraphicsItem *parent = 0);

protected:
	virtual void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);
	virtual void keyReleaseEvent(QKeyEvent *event);

signals:
	void textChanged(const QString &text);
	void editingFinished(const QString &text);
};

class ProfileGraphicsView : public QGraphicsView {
	Q_OBJECT
public:
	enum Mode {
		DIVE,
		PLAN
	};

	ProfileGraphicsView(QWidget *parent = 0);
	void plot(struct dive *d, bool forceRedraw = false);
	bool eventFilter(QObject *obj, QEvent *event);
	void clear();
	void setPrintMode(bool mode, bool grayscale = false);

protected:
	void resizeEvent(QResizeEvent *event);
	void mouseMoveEvent(QMouseEvent *event);
	void wheelEvent(QWheelEvent *event);
	void showEvent(QShowEvent *event);
	void contextMenuEvent(QContextMenuEvent *event);

public
slots:
	void refresh();
	void edit_dive_time(const QString &time);
	void on_rulerAction();
	void on_scaleAction();
	void changeGas();
	void hideEvents();
	void unhideEvents();
	void removeEvent();
	void addBookmark();

private:
	void plot_depth_profile();
	QGraphicsItemGroup *plot_text(text_render_options_t *tro, const QPointF &pos, const QString &text, QGraphicsItem *parent = 0);
	void plot_events(struct divecomputer *dc);
	void plot_one_event(struct event *event);
	void plot_temperature_profile();
	void plot_cylinder_pressure();
	void plot_temperature_text();
	void plot_single_temp_text(int sec, int mkelvin);
	void plot_depth_text();
	void plot_text_samples();
	void plot_depth_sample(plot_data *entry, text_render_options_t *tro);
	void plot_cylinder_pressure_text();
	void plot_pressure_value(int mbar, int sec, double xalign, double yalign);
	void plot_gas_value(int mbar, int sec, double xalign, double yalign, int o2, int he);
	void plot_deco_text();
	void plot_add_line(int sec, double val, QColor c, QPointF &from);
	void plot_pp_gas_profile();
	void plot_pp_text();
	void plot_depth_scale();


	void addControlItems(struct dive *d);

	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);
	void createPPLegend(QString tr, const QColor &c, QPointF &legendPos);

	QPen defaultPen;
	QBrush defaultBrush;
	ToolTipItem *toolTip;
	graphics_context gc;
	int diveId;
	struct divecomputer *diveDC;
	int zoomLevel;

	bool rulerEnabled;
	bool printMode;
	bool isGrayscale;

	// Top Level Items.
	QGraphicsItem *profileGrid;
	QGraphicsItem *timeMarkers;
	QGraphicsItem *depthMarkers;
	QGraphicsItem *diveComputer;
	RulerItem *rulerItem;
	QGraphicsProxyWidget *toolBarProxy;

	// For 'Plan' mode.:
	GraphicsTextEditor *depthEditor;
	GraphicsTextEditor *timeEditor;

	enum Mode mode;
};

#endif // PROFILEGRAPHICS_H