#include <targetlistcomponent.h>

Inheritance diagram for TargetListComponent:

Public Member Functions
	TargetListComponent (SkyComposite *parent)

	TargetListComponent (SkyComposite *parent)

	TargetListComponent (SkyComposite parent, QList< SkyObject > objectList, QPen _pen, bool(optionDrawSymbols)(void)=0, bool(*optionDrawLabels)(void)=0)

	TargetListComponent (SkyComposite parent, QList< SkyObject > objectList, QPen _pen, bool(optionDrawSymbols)(void)=0, bool(*optionDrawLabels)(void)=0)

virtual void	draw (SkyPainter *skyp)

virtual void	draw (SkyPainter *skyp)

Public Member Functions inherited from SkyComponent
	SkyComponent (SkyComposite *parent)

virtual	~SkyComponent ()

virtual void	drawTrails (SkyPainter *skyp)

virtual void	emitProgressText (const QString &message)

virtual SkyObject *	findByName (const QString &name)

QHash< int, QStringList > &	objectNames ()

QStringList &	objectNames (int type)

virtual SkyObject *	objectNearest (SkyPoint *p, double &maxrad)

virtual void	objectsInArea (QList< SkyObject * > &list, const SkyRegion &region)

SkyComposite *	parent ()

virtual bool	selected ()

virtual void	update (KSNumbers *)

virtual void	updateMoons (KSNumbers *)

virtual void	updatePlanets (KSNumbers *)

Public Attributes
bool(*	drawLabels )(void)

bool(*	drawSymbols )(void)

SkyObjectList *	list

QPen	pen

Additional Inherited Members
Protected Member Functions inherited from SkyComponent
void	removeFromNames (const SkyObject *obj)

Detailed Description

Highlights objects present in certain lists by drawing "target" symbols around them.

To represent lists of specific objects on the skymap (eg: A star hopping route, or a list of planned observation targets), one would typically like to draw over the skymap, a bunch of symbols highlighting the locations of these objects. This class manages drawing of such lists. Along with the list, we also associate a pen to use to represent objects from that list. Once this class is made aware of a list to plot (which is stored somewhere else), it does so when called from the SkyMapComposite. The class may be supplied with pointers to two methods that tell it whether to draw symbols / labels or not. Disabling symbol drawing is equivalent to disabling the list. If the pointers are NULL, the symbols are always drawn, but the labels are not drawn.

Note: This does not inherit from ListComponent because it is not necessary. ListComponent has extra methods like objectNearest(), which we don't want. Also, ListComponent maintains its own list, whereas this class merely holds a pointer to a list that's manipulated from elsewhere.

Definition at line 50 of file skycomponents/targetlistcomponent.h.

Constructor & Destructor Documentation

TargetListComponent::TargetListComponent ( SkyComposite * parent )

explicit

Default constructor.

Definition at line 22 of file skycomponents/targetlistcomponent.cpp.

TargetListComponent::TargetListComponent	(	SkyComposite *	parent,
		QList< SkyObject * > *	objectList,
		QPen	_pen,
		bool(*)(void)	optionDrawSymbols = `0`,
		bool(*)(void)	optionDrawLabels = `0`
	)

Constructor that sets up this target list.

Definition at line 28 of file skycomponents/targetlistcomponent.cpp.

TargetListComponent::TargetListComponent ( SkyComposite * parent )

explicit

Default constructor.

TargetListComponent::TargetListComponent	(	SkyComposite *	parent,
		QList< SkyObject * > *	objectList,
		QPen	_pen,
		bool(*)(void)	optionDrawSymbols = `0`,
		bool(*)(void)	optionDrawLabels = `0`
	)

Constructor that sets up this target list.

Member Function Documentation

void TargetListComponent::draw ( SkyPainter * skyp )

virtual

Draw this component by iterating over the list.

This method is now implemented in SkyPainter subclasses, and hence is redundant.

Note: This method does not bother refreshing the coordinates of the objects on the list. So this must be called only after the objects are drawn in a given draw cycle.

But I'd let this method stick around for a while, before I get rid of it altogether

Akarsh

void TargetListComponent::drawTargetSymbol( SkyPainter *skyp, SkyObject *obj ) { SkyMap *map = SkyMap::Instance(); // FIXME: Replace with projector upon merger of Harry's code if ( ! map->checkVisibility( obj ) ) return; QPointF o = map->toScreen( obj ); // FIXME: Replace with appropriate call on the projector upon merger of Harry's code if( !drawSymbols || (*drawSymbols)() ) { if (o.x() >= 0. && o.x() <= map->width()*map->scale() && o.y() >=0. && o.y() <= map->height()*map->scale() ) { if ( Options::useAntialias() ) { float size = 20.*map->scale(); float x1 = o.x() - 0.5*size; float y1 = o.y() - 0.5*size; psky.drawArc( QRectF(x1, y1, size, size), -60*16, 120*16 ); psky.drawArc( QRectF(x1, y1, size, size), 120*16, 120*16 ); } else { int size = 20*int(map->scale()); int x1 = int(o.x()) - size/2; int y1 = int(o.y()) - size/2; psky.drawArc( QRect(x1, y1, size, size), -60*16, 120*16 ); psky.drawArc( QRect(x1, y1, size, size), 120*16, 120*16 ); } if ( drawLabels && (*drawLabels)() ) obj->drawRudeNameLabel( psky, o ); } } }

Implements SkyComponent.

Definition at line 70 of file skycomponents/targetlistcomponent.cpp.

virtual void TargetListComponent::draw ( SkyPainter * skyp )

virtual

Draw this component by iterating over the list.

Note: This method does not bother refreshing the coordinates of the objects on the list. So this must be called only after the objects are drawn in a given draw cycle.

Implements SkyComponent.