public class TLcdGXYRefuelingTrackPainter extends ALcdGXYPainter
ILcdRefuelingTrack
and refueling air spaces ILcdRefuelingAirspace
). Refueling tracks are drawn as
lines, airspaces are drawn as polygons.
Track point are also drawn using an icon.
A symbol provider can be specified to override the refueling track icons.defaultCreationFillStyle, defaultCreationLineStyle, defaultFillStyle, defaultLineStyle, fWorkBounds
BODY, CREATING, DEFAULT, HANDLES, RESHAPING, SELECTED, SNAPS, TRANSLATING
Constructor and Description |
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TLcdGXYRefuelingTrackPainter() |
Modifier and Type | Method and Description |
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void |
boundsSFCT(Graphics aGraphics,
int aSequenceNumber,
ILcdGXYContext aILcdGXYContext,
ILcd2DEditableBounds aILcd2DEditableBounds)
Sets the supplied bounds (in view coordinates, pixels) so that it encompasses the representation of the object
in the given mode taking into account the given context.
|
Object |
clone()
Makes
Object.clone() public. |
Object |
getObject()
Returns the Object for which the representation is currently being handled by this painter.
|
ILcdGXYPainterStyle |
getRefuelingAirspaceLineStyle() |
ILcdGXYPainterStyle |
getRefuelingTrackLineStyle() |
ILcdIcon |
getSnapIcon() |
boolean |
isTouched(Graphics aGraphics,
int aSequenceNumber,
ILcdGXYContext aILcdGXYContext)
Checks if the representation of the object in the given mode is touched at the location as defined in the
supplied context.
|
void |
paint(Graphics aGraphics,
int aMode,
ILcdGXYContext aILcdGXYContext)
Displays the representation of the object in the given mode on the Graphics passed, taking into account the
supplied context.
|
void |
setObject(Object aObject)
Sets the Object for which the representation shall be handled by this painter.
|
void |
setRefuelingAirspaceLineStyle(ILcdGXYPainterStyle aLineStyle) |
void |
setRefuelingTrackLineStyle(ILcdGXYPainterStyle aLineStyle) |
void |
setSnapIcon(ILcdIcon aSnapIcon) |
void |
setSymbolProvider(TLcdGXYAISIconProviderPainter aProvider) |
Object |
snapTarget(Graphics aGraphics,
ILcdGXYContext aGXYContext)
Override this method to support snapping.
|
boolean |
supportSnap(Graphics aGraphics,
ILcdGXYContext aGXYContext)
Override this method to support snapping.
|
addPropertyChangeListener, anchorPointSFCT, firePropertyChangeEvent, firePropertyChangeEvent, getCursor, getDisplayName, getGXYPainter, isTraceOn, removePropertyChangeListener, setClassTraceOn, setDisplayName, setTraceOn
public Object clone()
ILcdCloneable
Makes Object.clone()
public.
java.lang.Object
, it can be implemented like this:
public Object clone() {
try {
return super.clone();
} catch ( CloneNotSupportedException e ) {
// Cannot happen: extends from Object and implements Cloneable (see also Object.clone)
throw new RuntimeException( e );
}
}
clone
in interface ILcdCloneable
clone
in interface ILcdGXYPainterProvider
clone
in class ALcdGXYPainter
Object.clone()
public void setSymbolProvider(TLcdGXYAISIconProviderPainter aProvider)
public ILcdGXYPainterStyle getRefuelingAirspaceLineStyle()
public void setRefuelingAirspaceLineStyle(ILcdGXYPainterStyle aLineStyle)
public ILcdGXYPainterStyle getRefuelingTrackLineStyle()
public void setRefuelingTrackLineStyle(ILcdGXYPainterStyle aLineStyle)
public void setSnapIcon(ILcdIcon aSnapIcon)
public ILcdIcon getSnapIcon()
public boolean isTouched(Graphics aGraphics, int aSequenceNumber, ILcdGXYContext aILcdGXYContext)
ILcdGXYPainter
The location that must be taken into account to check whether the representation is touched can be retrieved from
the context passed with the methods
ILcdGXYContext.getX()
and ILcdGXYContext.getY()
.
If the check is part of an ongoing operation of
user interaction, for example, when the mouse is being dragged, the location of the start of the operation can also
be taken into account using the methods
ILcdGXYContext.getDeltaX()
and ILcdGXYContext.getDeltaY()
.
The context contains the transformations required to convert this location into the equivalent location in
model space. Implementations of this interface usually follow either of the following patterns:
As the mode influences the way an object is represented, it must also be taken into account when checking whether that representation is being touched. When the mode contains CREATING, RESHAPING or TRANSLATING which indicate that the object must be represented in a state for an ongoing operation, the location of the start of the operation may be taken into account as mentioned above. The painting result can take into account multiple locations, to respond to, for example, multi-touch input. When the mode contains SELECTED, the painter should also check if the non-selected representation is touched, since these are always painted on top of each other.
The boundsSFCT
is often used to speed up the performance of this method as a location outside these bounds can never
touch the representation of the object.
Note that this method does not give an indication of what part of the object is touched. It is up to the painter implementations to provide methods to make this distinction. The method does also not indicate what sensitivity must be applied when checking if an object is touched. It is up to the implementation to decide what should be the maximum distance between the location given in the context and the closest relevant point or area of the representation of the object.
aGraphics
- the Graphics on which the representation of the object is paintedaSequenceNumber
- the mode the object is represented inaILcdGXYContext
- contains the location of the interaction and the transformations to convert this location into
model coordinatesboundsSFCT
public void boundsSFCT(Graphics aGraphics, int aSequenceNumber, ILcdGXYContext aILcdGXYContext, ILcd2DEditableBounds aILcd2DEditableBounds) throws TLcdNoBoundsException
ILcdGXYPainter
If this method returns without exception the bounds argument must encompass the representation of the object. A point outside the bounds will not be contained within the painted object.
The bounds returned in this method can be seen as the equivalent in the view space of the bounds in the model
space for ILcdBounded
objects.
aGraphics
- the Graphics on which the representation of the object is paintedaSequenceNumber
- the mode the object is represented in (see class documentation). For example, an object may be
represented differently in SELECTED mode compared to DEFAULT mode. The returned bounds of the representation
must take this different representation into account.aILcdGXYContext
- the context for which the representation of the object is painted. It contains amongst others
the transformations from model to world and world to view.aILcd2DEditableBounds
- the bounds that must be adapted to encompass the representation of the object in the given
mode and context. These bounds must not be taken into account when the method has thrown an exception.TLcdNoBoundsException
- if no bounds can be determined for the representation of the object.
This can happen when the object does not have a representation in the given context, for example when it is located
in a part of the world which is not visible in the current view.isTouched
public boolean supportSnap(Graphics aGraphics, ILcdGXYContext aGXYContext)
ALcdGXYPainter
supportSnap
in interface ILcdGXYPainter
supportSnap
in class ALcdGXYPainter
aGraphics
- the Graphics on which the representation of the object is paintedaGXYContext
- the context in which this object is represented and in which the editing of an object occurs.false
.public Object snapTarget(Graphics aGraphics, ILcdGXYContext aGXYContext)
ALcdGXYPainter
snapTarget
in interface ILcdGXYPainter
snapTarget
in class ALcdGXYPainter
aGraphics
- the Graphics on which the representation of the object is paintedaGXYContext
- the context in which this object is represented and in which the editing of an object occurs.null
.supportSnap
public void paint(Graphics aGraphics, int aMode, ILcdGXYContext aILcdGXYContext)
ILcdGXYPainter
The visual representation of an object depends on the context. Depending on the context (e.g. is the location covered by the view), an object may or may not have a representation. The context contains:
The mode passed in this method indicates what part of the object must be painted, whether it should be painted as selected or not, and whether user interaction (via mouse movements) must be taken into account.
When the mode passed contains either TRANSLATING, RESHAPING or CREATING, this method is also responsible for
interpreting interaction on the representation of an object and modifying the representation of the object
accordingly. The painter is not responsible for modifying the object itself, this is done by
a corresponding ILcdGXYEditor
.
Implementations of ILcdGXYPainter
and ILcdGXYEditor
interfaces must be consistent for
an object: the painter must display the result of the user interaction on the object, while the editor is
responsible for modifying the object as a result of the user interaction.
A good practice to ensure a consistent implementation is to implement both the ILcdGXYPainter
and ILcdGXYEditor
interfaces in a single class.
When the mode passed includes SNAPS, the part of the representation which corresponds to the object returned as
snap target by the method snapTarget
must be painted in order to provide the user with a visual indication of the snap target.
The Graphics passed in this method can be different from the Graphics returned by a view due to techniques such as double buffering (as applied in Swing). Basic drawing operations must always be performed on the Graphics passed as an argument in this method.
aGraphics
- the Graphics on which the representation of the object is paintedaMode
- the mode the object is represented in (see class documentation).aILcdGXYContext
- the ILcdGXYContext
the drawing depends on.public Object getObject()
ILcdGXYPainter
ILcdGXYPainter.setObject(Object)
public void setObject(Object aObject)
ILcdGXYPainter
Setting the object on the painter may have an effect on the internal state of the painter, for example, the color to use.
When the object is set to a painter, the context parameter in subsequent calls to methods in this class must contain a layer that contains this object and for which the painter for this object is this painter.
aObject
- the object for which the representation shall be handled by this painter.ILcdGXYPainter.getObject()