Class TLcdGXYEllipsePainter
- All Implemented Interfaces:
ILcdCloneable
,ILcdPropertyChangeSource
,ILcdGXYEditor
,ILcdGXYEditorProvider
,ILcdGXYPainter
,ILcdGXYPainterProvider
,ILcdGXYPathPainter
,Serializable
,Cloneable
ILcdEllipse
objects and enables visual editing of
ILcd2DEditableEllipse
objects in an ILcdGXYView
.
Painting an ILcdEllipse
Body
This painter provides three paint modes to paint the body of an ILcdEllipse
object. The mode
property can be set using the method setMode
and allows the ellipse to be painted
as:
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An outlined ellipse (OUTLINED ) |
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A filled ellipse (FILLED ) |
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A filled and outlined ellipse (OUTLINED_FILLED ) |
Objects that are selected or that are being edited, are painted as defined by the selectionMode and editMode properties, respectively. The same values as above can be used for both mode properties.
Handles
This painter defines the four axis points of the ILcdEllipse
object as a handle of
the ellipse. The following image clarifies the handle location, the axis points are represented
by red points.
Note that the center point of the ellipse is painted in
BODY
mode depending on the drawCenter
property. When painted, it can be used as a handle to edit the object.
Snap targets
If the center point is painted (see isDrawCenter()
) or when snapping to invisible points is
enabled (see isSnapToInvisiblePoints()
), the center point can also be returned. The point
returned as a snap target is highlighted with the snapIcon
.
Styling options
The visualization of the ILcdEllipse
object is governed by the line style and fill style
set to this painter. Depending on the paint mode chosen one or both of these will be taken into account.
Locating an ILcdEllipse in a view
Anchor point of an ILcdEllipse
The anchor point of the ILcdEllipse
object is located at the center point of the bounds,
calculated by boundsSFCT
. Note that the center point of the ILcdEllipse
object is not taken into account.
When is an ILcdEllipse touched
Depending on the paint mode, an ellipse is touched when either the contour, one of the axis handles, the center point, or the internal area (when filled) of the ellipse is touched. Note that the center point can only be touched if it is painted.
Visually editing and creating an ILcd2DEditableEllipse
Modifying an ILcd2DEditableEllipse
This editor provides the following edit functionality for the different render modes:
RESHAPED
: the ellipse is reshaped, depending on whether one of the axis handles is touched. The image below illustrate the editing behavior. The small black arrow indicates the path of the mouse cursor while reshaping the ellipse.
Moving an axis point. TRANSLATED
: the whole ellipse is translated, depending on whether the contour or the interior is touched. The images below illustrate the editing behavior. The small black arrow indicates the path of the mouse cursor while translating the ellipse.
Moving the contour.
Moving the interior.
Note that, if the center point of the ellipse is touched (and painted), the whole ellipse can be translated as if the contour was touched.
Creating an ILcd2DEditableEllipse
When initializing an ellipse via interaction through the view, a number of user interactions are required
to complete the initialization. This number depends on the creation mode
and
it is either 2 or 3 for the modes TWO_CLICK
or THREE_CLICK
.
Accepted snap targets
All points are accepted as snap target as long as:
- the point can be transformed to the reference of the
ILcdEllipse
object with themodel to model transformation
, - the point is not the center point of the
ILcdEllipse
object set to this painter.
Additional properties
Caching
This painter implementation supports caching for objects implementing ILcdCache
.
Caching can be turned on/off with the setPaintCache
method.
Drawing the center point
The drawCenter
and drawCenterWhenSelected
properties define when the center point needs to be painted. If the center point is painted, it can
be touched, moved,...
- See Also:
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Field Summary
Modifier and TypeFieldDescriptionstatic final int
Constant value indicating that the body of the ellipse is touched.static final int
Constant value indicating that the center point of the ellipse is touched.static final int
Constant value indicating that the anchor point should be chosen as the center point of the ellipse.static final int
Constant for editing and selection painting modes, indicating that the painting mode for default (not selected and not edited) objects should be copied.static final int
Draw theILcdEllipse
object as a filled ellipse, only the area of the ellipse defined by theILcdEllipse
is painted.static final int
Constant value indicating that the anchor point should be chosen as the focus point of the ellipse.static final int
Constant value indicating that the end point of the major axis of the ellipse is touched.static final int
Constant value indicating that the opposite end point of the major axis of the ellipse is touched.static final int
Constant value indicating that the anchor point should be chosen in the middle of the bounds, calculated byboundsSFCT
.static final int
Constant value indicating that the end point of the minor axis of the ellipse is touched.static final int
Constant value indicating that the opposite end point of the minor axis of the ellipse is touched.static final int
Constant value indicating that the ellipse is not touched.static final int
Draw theILcdEllipse
object as an outlined ellipse, only the contour of the ellipse defined by theILcdEllipse
is painted.static final int
Draw theILcdEllipse
object as an outlined and filled ellipse, both the area and the contour of the ellipse defined by theILcdEllipse
are painted.static final int
Constant for the three click creation mode.static final int
Constant for the two click creation mode.Fields inherited from class com.luciad.view.gxy.ALcdGXYPainter
defaultCreationFillStyle, defaultCreationLineStyle, defaultFillStyle, defaultLineStyle, fWorkBounds
Fields inherited from interface com.luciad.view.gxy.ILcdGXYEditor
CREATING, END_CREATION, RESHAPED, START_CREATION, TRANSLATED
Fields inherited from interface com.luciad.view.gxy.ILcdGXYPainter
CREATING, HANDLES, RESHAPING, SELECTED, SNAPS, TRANSLATING
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Constructor Summary
ConstructorDescriptionConstructs a defaultTLcdGXYEllipsePainter
and sets the display name to "Ellipse". -
Method Summary
Modifier and TypeMethodDescriptionboolean
acceptSnapTarget
(Graphics aGraphics, ILcdGXYContext aGXYContext) Determines whether a snap target should be accepted or not.void
anchorPointSFCT
(Graphics aGraphics, int aMode, ILcdGXYContext aGXYContext, Point aPointSFCT) ImplementsILcdGXYPainter.anchorPointSFCT
.boolean
appendAWTPath
(ILcdGXYContext aGXYContext, int aRenderMode, ILcdAWTPath aAWTPathSFCT) Appends a discretized representation in view coordinates to the given path.boolean
appendGeneralPath
(ILcdGXYContext aGXYContext, int aRenderMode, ILcdGeneralPath aGeneralPathSFCT) Appends a discretized representation in world coordinates to the given path.protected void
boundsOfEditingLabelsSFCT
(Graphics aGraphics, ILcdEllipse aEllipse, int aTouchedLocation, ILcdGXYContext aGXYContext, ILcd2DEditableBounds aBoundsSFCT) Called by theboundsSFCT
method when editing anILcd2DEditableEllipse
.void
boundsSFCT
(Graphics aGraphics, int aRenderMode, ILcdGXYContext aGXYContext, ILcd2DEditableBounds aBoundsSFCT) Computes the bounds of the representation of anILcdEllipse
in AWT coordinates.clone()
MakesObject.clone()
public.boolean
edit
(Graphics aGraphics, int aRenderMode, ILcdGXYContext aGXYContext) This implementation edits theILcdEllipse
object set to the painter.int
Returns the location of the anchor point (by default: MIDDLE_OF_BOUNDS).int
Returns either 2 or 3 depending on thecreation mode
(TWO_CLICK
orTHREE_CLICK
) as the number of required user interactions.getCursor
(Graphics aGraphics, int aRenderMode, ILcdGXYContext aGXYContext) Returns aCursor
that clarifies the render mode and context this painter is operating in.int
Deprecated.getGXYEditor
(Object aObject) Returns this instance as editor for editing the specifiedObject
.Returns the object that can currently be painted or edited by this painter/editor.boolean
Returns whether caching is used when painting this painter's object.Returns the icon that is used to paint snap target points of the object set to this painter.boolean
Returns whether the center point of the ellipse should be displayed.boolean
Returns whether the center point of the ellipse should be displayed when it is painted in selected mode.boolean
Returns whether the painter allows snapping to the invisible points of the shape.boolean
isTouched
(Graphics aGraphics, int aRenderMode, ILcdGXYContext aGXYContext) Depending on the rendering mode, returns whether the contour, the axis handles or the center point of the ellipse is touched.boolean
Deprecated.This method has been deprecated.void
paint
(Graphics aGraphics, int aRenderMode, ILcdGXYContext aGXYContext) Displays the representation of the object in the given mode on the Graphics passed, taking into account the context passed.protected void
paintEditingLabels
(Graphics aGraphics, ILcdEllipse aEllipse, int aTouchedLocation, ILcdGXYContext aGXYContext) Called by thepaint
method when editing anILcd2DEditableEllipse
.void
setAnchorPointLocation
(int aAnchorPointLocation) Sets the preferred anchor point location.void
setCreationMode
(int aCreationMode) Sets the mode to decide how to create anILcdEllipse
object.void
setDrawCenter
(boolean aDrawCenter) Sets whether the center point of the ellipse should be displayed or not.void
setDrawCenterWhenSelected
(boolean aDrawCenterWhenSelected) Sets whether the center point of the ellipse should be displayed when it is painted in selected mode or not.void
setEditingMode
(int aEditingMode) Deprecated.UseALcdGXYAreaPainter.setEditMode(int)
instead.void
setModelModelTransformationClass
(Class aModel2ModelTransformationClass) Sets the transformation class that should be used when snapping to points that are defined in a different reference than the reference of this painter's object.void
Sets the object to paint and edit.void
setPaintCache
(boolean aPaintCache) Turns caching of the representation of the object on or off.void
setSnapIcon
(ILcdIcon aSnapIcon) Sets the icon that marks snap targets of the object currently set to this painter.void
setSnapToInvisiblePoints
(boolean aSnapToInvisiblePoints) Sets whether the other shapes can snap to invisible points of this shape.void
setTraceOn
(boolean aTraceOn) Deprecated.This method has been deprecated.protected void
setupGraphicsForFill
(Graphics aGraphics, Object aObject, int aRenderMode, ILcdGXYContext aGXYContext) Called just before filling ellipses on the specifiedGraphics
object.protected void
setupGraphicsForLine
(Graphics aGraphics, Object aObject, int aRenderMode, ILcdGXYContext aGXYContext) Called just before painting a line on the specifiedGraphics
object.snapTarget
(Graphics aGraphics, ILcdGXYContext aGXYContext) Returns the center point of theILcdEllipse
if it is touched.boolean
supportSnap
(Graphics aGraphics, ILcdGXYContext aGXYContext) This implementation supports snapping, always returnstrue
.Methods inherited from class com.luciad.view.gxy.painter.ALcdGXYAreaPainter
getEditMode, getFillStyle, getLineStyle, getMode, getSelectionMode, setEditMode, setFillStyle, setLineStyle, setMode, setSelectionMode
Methods inherited from class com.luciad.view.gxy.ALcdGXYPainter
addPropertyChangeListener, firePropertyChangeEvent, firePropertyChangeEvent, getDisplayName, getGXYPainter, removePropertyChangeListener, setClassTraceOn, setDisplayName
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface com.luciad.view.gxy.ILcdGXYEditor
getDisplayName
Methods inherited from interface com.luciad.view.gxy.ILcdGXYPainter
getDisplayName
Methods inherited from interface com.luciad.util.ILcdPropertyChangeSource
addPropertyChangeListener, removePropertyChangeListener
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Field Details
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OUTLINED
public static final int OUTLINEDDraw theILcdEllipse
object as an outlined ellipse, only the contour of the ellipse defined by theILcdEllipse
is painted.- See Also:
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FILLED
public static final int FILLEDDraw theILcdEllipse
object as a filled ellipse, only the area of the ellipse defined by theILcdEllipse
is painted.- See Also:
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OUTLINED_FILLED
public static final int OUTLINED_FILLEDDraw theILcdEllipse
object as an outlined and filled ellipse, both the area and the contour of the ellipse defined by theILcdEllipse
are painted.- See Also:
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DEFAULT
public static final int DEFAULTConstant for editing and selection painting modes, indicating that the painting mode for default (not selected and not edited) objects should be copied. This avoids having to set all modes separately.- See Also:
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NOT_TOUCHED
public static final int NOT_TOUCHEDConstant value indicating that the ellipse is not touched.- See Also:
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CENTER
public static final int CENTERConstant value indicating that the center point of the ellipse is touched.- See Also:
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BODY
public static final int BODYConstant value indicating that the body of the ellipse is touched.- See Also:
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MAJOR_RADIUS_CORNER
public static final int MAJOR_RADIUS_CORNERConstant value indicating that the end point of the major axis of the ellipse is touched.- See Also:
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MINOR_RADIUS_CORNER
public static final int MINOR_RADIUS_CORNERConstant value indicating that the end point of the minor axis of the ellipse is touched.- See Also:
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MAJOR_RADIUS_OPPOSITE_CORNER
public static final int MAJOR_RADIUS_OPPOSITE_CORNERConstant value indicating that the opposite end point of the major axis of the ellipse is touched.- See Also:
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MINOR_RADIUS_OPPOSITE_CORNER
public static final int MINOR_RADIUS_OPPOSITE_CORNERConstant value indicating that the opposite end point of the minor axis of the ellipse is touched.- See Also:
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MIDDLE_OF_BOUNDS
public static final int MIDDLE_OF_BOUNDSConstant value indicating that the anchor point should be chosen in the middle of the bounds, calculated byboundsSFCT
.- See Also:
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FOCUS_POINT
public static final int FOCUS_POINTConstant value indicating that the anchor point should be chosen as the focus point of the ellipse. If this point cannot be calculated, theMIDDLE_OF_BOUNDS
method is used to calculate the anchor point.- See Also:
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CENTER_POINT
public static final int CENTER_POINTConstant value indicating that the anchor point should be chosen as the center point of the ellipse. If this point cannot be calculated, theMIDDLE_OF_BOUNDS
method is used to calculate the anchor point.- See Also:
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TWO_CLICK
public static final int TWO_CLICKConstant for the two click creation mode. The clicks define:- the position of the center point, and
- the semi-major axis, semi-minor axis length and the rotation angle of the ellipse.
- See Also:
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THREE_CLICK
public static final int THREE_CLICKConstant for the three click creation mode. The clicks define:- the position of the center point,
- the semi-major axis length and the rotation angle of the ellipse, and
- the semi-minor axis length.
- See Also:
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Constructor Details
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TLcdGXYEllipsePainter
public TLcdGXYEllipsePainter()Constructs a defaultTLcdGXYEllipsePainter
and sets the display name to "Ellipse".
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Method Details
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setTraceOn
public void setTraceOn(boolean aTraceOn) Deprecated.This method has been deprecated. It is recommended to use the standard Java logging framework directly.Enables tracing for this class instance. Calling this method with eithertrue
orfalse
as argument automatically turns off tracing for all other class instances for whichsetTraceOn
has not been called. If the argument isfalse
then only the informative, warning and error log messages are recorded.- Overrides:
setTraceOn
in classALcdGXYPainter
- Parameters:
aTraceOn
- if true then all log messages are recorded for this instance. If false, then only the informative, warning and error log messages are recorded.
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isTraceOn
public boolean isTraceOn()Deprecated.This method has been deprecated. It is recommended to use the standard Java logging framework directly.Returnstrue
if tracing is enabled for this class.- Overrides:
isTraceOn
in classALcdGXYPainter
- Returns:
- true if tracing is enabled for this class, false otherwise.
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setObject
Sets the object to paint and edit. The object should be an instance of
ILcdEllipse
for painting and an instance ofILcd2DEditableEllipse
for editing.This painter/editor can be used to paint the object without using the edit functionality. This method shall therefore only check if the object implements
ILcdEllipse
and shall throw aClassCastException
if it does not.When this painter is used as editor with an object that does not implement the interface
ILcd2DEditableEllipse
, theedit
method shall throw the necessary exception.- Specified by:
setObject
in interfaceILcdGXYEditor
- Specified by:
setObject
in interfaceILcdGXYPainter
- Parameters:
aObject
- The object to paint and edit.- Throws:
ClassCastException
- when the object does not implementILcdEllipse
.- See Also:
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getObject
Returns the object that can currently be painted or edited by this painter/editor.- Specified by:
getObject
in interfaceILcdGXYEditor
- Specified by:
getObject
in interfaceILcdGXYPainter
- Returns:
- the object that can currently be painted or edited by this painter/editor.
- See Also:
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setEditingMode
public void setEditingMode(int aEditingMode) Deprecated.UseALcdGXYAreaPainter.setEditMode(int)
instead. -
getEditingMode
public int getEditingMode()Deprecated.UseALcdGXYAreaPainter.getEditMode()
instead. -
setCreationMode
public void setCreationMode(int aCreationMode) Sets the mode to decide how to create anILcdEllipse
object. An ellipse can be created in the following modes. The default value isTWO_CLICK
.TWO_CLICK
, which enables setting the center point, the axis length and the rotation angle, orTHREE_CLICK
, which enables setting the center point, the semi-major axis length and the rotation angle, and the semi-minor axis length.
- Parameters:
aCreationMode
- The mode deciding how to create anILcdEllipse
object.
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setPaintCache
public void setPaintCache(boolean aPaintCache) Turns caching of the representation of the object on or off. Caching greatly reduces the time to paint an object but requires more memory. The representation of an object can only be cached for objects which implementILcdCache
. By default, caching is turned on.- Parameters:
aPaintCache
- A flag indicating whether to use caching when painting an object.- See Also:
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getPaintCache
public boolean getPaintCache()Returns whether caching is used when painting this painter's object.- Returns:
true
if caching is used to paint this painter's object,false
otherwise.- See Also:
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setDrawCenter
public void setDrawCenter(boolean aDrawCenter) Sets whether the center point of the ellipse should be displayed or not. The default value of this property isfalse
. This setting has an influence on the methodsboundsSFCT
,isTouched
and snapping. Regardless of this setting, the center point is always displayed as a handle in HANDLES mode to allow editing.- Parameters:
aDrawCenter
- A flag indicating whether the center point should be displayed or not.- See Also:
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isDrawCenter
public boolean isDrawCenter()Returns whether the center point of the ellipse should be displayed.- Returns:
- whether the center point of the ellipse should be displayed.
- See Also:
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setDrawCenterWhenSelected
public void setDrawCenterWhenSelected(boolean aDrawCenterWhenSelected) Sets whether the center point of the ellipse should be displayed when it is painted in selected mode or not. The default value of this property istrue
. This setting has an influence on the methodsboundsSFCT
,isTouched
and snapping. Regardless of this setting, the center point is always displayed as a handle in HANDLES mode to allow editing.- Parameters:
aDrawCenterWhenSelected
- A flag indicating whether the center point should be displayed when it is painted in selected mode or not.- See Also:
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isDrawCenterWhenSelected
public boolean isDrawCenterWhenSelected()Returns whether the center point of the ellipse should be displayed when it is painted in selected mode.- Returns:
- whether the center point of the ellipse should be displayed when it is painted in selected mode.
- See Also:
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setSnapToInvisiblePoints
public void setSnapToInvisiblePoints(boolean aSnapToInvisiblePoints) Sets whether the other shapes can snap to invisible points of this shape. For anILcdEllipse
object, there's only one invisible point, being the center point of the ellipse when it is not drawn. The default value isfalse
.- Parameters:
aSnapToInvisiblePoints
- A flag indicating whether snapping to the invisible points is allowed.- See Also:
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isSnapToInvisiblePoints
public boolean isSnapToInvisiblePoints()Returns whether the painter allows snapping to the invisible points of the shape.- Returns:
- whether the painter allows snapping to the invisible points of the shape.
- See Also:
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setSnapIcon
Sets the icon that marks snap targets of the object currently set to this painter. This icon is painted when thepaint
method is called with the render modeILcdGXYPainter.SNAPS
.- Parameters:
aSnapIcon
- The icon that should be used to paint snap target points.- See Also:
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getSnapIcon
Returns the icon that is used to paint snap target points of the object set to this painter.- Returns:
- the icon that is used to paint snap target points of the object set to this painter.
- See Also:
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getAnchorPointLocation
public int getAnchorPointLocation()Returns the location of the anchor point (by default: MIDDLE_OF_BOUNDS).- Returns:
- one of
MIDDLE_OF_BOUNDS
,FOCUS_POINT
,CENTER_POINT
.
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setAnchorPointLocation
public void setAnchorPointLocation(int aAnchorPointLocation) Sets the preferred anchor point location.- Parameters:
aAnchorPointLocation
- one ofMIDDLE_OF_BOUNDS
,FOCUS_POINT
,CENTER_POINT
.
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setupGraphicsForLine
protected void setupGraphicsForLine(Graphics aGraphics, Object aObject, int aRenderMode, ILcdGXYContext aGXYContext) Called just before painting a line on the specified
Graphics
object. It can be redefined in order to set specificGraphics
properties likeColor
, etc...This implementation calls
ILcdGXYPainterStyle.setupGraphics(java.awt.Graphics, java.lang.Object, int, com.luciad.view.gxy.ILcdGXYContext)
on the lineStyle property if a line style has been set to this instance.- Parameters:
aGraphics
- The graphics to paint the object on.aObject
- The object to paint.aRenderMode
- The mode to render the object in.aGXYContext
- The context to render the object in.
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setupGraphicsForFill
protected void setupGraphicsForFill(Graphics aGraphics, Object aObject, int aRenderMode, ILcdGXYContext aGXYContext) Called just before filling ellipses on the specified
Graphics
object. It can be redefined in order to set specificGraphics
properties likeColor
, etc...This implementation calls
ILcdGXYPainterStyle.setupGraphics(java.awt.Graphics, java.lang.Object, int, com.luciad.view.gxy.ILcdGXYContext)
on the fillStyle property if a fill style has been set to this instance.- Parameters:
aGraphics
- The graphics to paint the object on.aObject
- The object to paint.aRenderMode
- The mode to render the object in.aGXYContext
- The context to render the object in.
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paint
Displays the representation of the object in the given mode on the Graphics passed, taking into account the context passed.This implementation will use the specified render mode to determine how the object needs to be rendered. The object is rendered as shown in the images of the class documentation.
- Specified by:
paint
in interfaceILcdGXYPainter
- Parameters:
aGraphics
- The graphics to paint the object on.aRenderMode
- The mode to render the object in.aGXYContext
- The context to render the object in.
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appendAWTPath
Description copied from interface:ILcdGXYPathPainter
Appends a discretized representation in view coordinates to the given path.- Specified by:
appendAWTPath
in interfaceILcdGXYPathPainter
- Parameters:
aGXYContext
- the graphics contextaRenderMode
- the rendering modeaAWTPathSFCT
- the path to append to- Returns:
- true if a discretization of the shape could be successfully appended to the path
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appendGeneralPath
public boolean appendGeneralPath(ILcdGXYContext aGXYContext, int aRenderMode, ILcdGeneralPath aGeneralPathSFCT) Description copied from interface:ILcdGXYPathPainter
Appends a discretized representation in world coordinates to the given path.- Specified by:
appendGeneralPath
in interfaceILcdGXYPathPainter
- Parameters:
aGXYContext
- the graphics contextaRenderMode
- the rendering modeaGeneralPathSFCT
- the path to append to- Returns:
- true if a discretization of the shape could be successfully appended to the path
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paintEditingLabels
protected void paintEditingLabels(Graphics aGraphics, ILcdEllipse aEllipse, int aTouchedLocation, ILcdGXYContext aGXYContext) Called by the
paint
method when editing anILcd2DEditableEllipse
. It draws labels indicating the values of properties being changed. For example, the coordinates of the center point of the ellipse, the major or minor axis extent, the rotation angle, etc ... This method is empty and therefore does not draw the labels but it can be redefined for specific needs.The
aTouchedLocation
argument indicates which part of the ellipse is being edited. For example,MAJOR_RADIUS_CORNER
corresponds to the end point of the major axis of the ellipse. It should be one of the following constants:CENTER
,BODY
,MAJOR_RADIUS_CORNER
,MINOR_RADIUS_CORNER
,MAJOR_RADIUS_OPPOSITE_CORNER
,MINOR_RADIUS_OPPOSITE_CORNER
- Parameters:
aGraphics
- The graphics to paint the object on.aEllipse
- The ellipse that is being edited.aTouchedLocation
- The part of the ellipse that is being edited.aGXYContext
- The context to render the object in.
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boundsSFCT
public void boundsSFCT(Graphics aGraphics, int aRenderMode, ILcdGXYContext aGXYContext, ILcd2DEditableBounds aBoundsSFCT) throws TLcdNoBoundsException Computes the bounds of the representation of anILcdEllipse
in AWT coordinates.- Specified by:
boundsSFCT
in interfaceILcdGXYPainter
- Parameters:
aGraphics
- The graphics to paint the object on.aRenderMode
- The mode to render the object in.aGXYContext
- The context to render the object in.aBoundsSFCT
- The bounds to update.- Throws:
TLcdNoBoundsException
- if no bounds can be determined for the representation of the object. This can be 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 projection as set in the views world reference.- See Also:
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boundsOfEditingLabelsSFCT
protected void boundsOfEditingLabelsSFCT(Graphics aGraphics, ILcdEllipse aEllipse, int aTouchedLocation, ILcdGXYContext aGXYContext, ILcd2DEditableBounds aBoundsSFCT) Called by the
boundsSFCT
method when editing anILcd2DEditableEllipse
. It calculates the bounds of the labels indicating the values of properties being changed. For example, the coordinates of the center point of the ellipse, the major or minor axis extent, the rotation angle, etc ... Since by default, no labels are painted, this implementation is empty and theaBoundsSFCT
argument remains unchanged.Note that the
ILcd2DEditableBounds
object already contains the bounds of the edited object. Upon exit of this method, this object should be set to the union of the bounds of the edited object and the labels painted while editing.The
aTouchedLocation
argument indicates which part of the ellipse is being edited. For example,MAJOR_RADIUS_CORNER
corresponds to the end point of the major axis of the ellipse. It should be one of the following constants:CENTER
,BODY
,MAJOR_RADIUS_CORNER
,MINOR_RADIUS_CORNER
,MAJOR_RADIUS_OPPOSITE_CORNER
,MINOR_RADIUS_OPPOSITE_CORNER
- Parameters:
aGraphics
- The graphics to paint the object on.aEllipse
- The ellipse that is being edited.aTouchedLocation
- The part of the ellipse that is being edited.aGXYContext
- The context to render the object in.aBoundsSFCT
- The bounds in view coordinates to be updated.
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isTouched
Depending on the rendering mode, returns whether the contour, the axis handles or the center point of the ellipse is touched. Note that the center point can only be touched if it is painted. The coordinate for which the check is done is derived from the context passed as argument.- Specified by:
isTouched
in interfaceILcdGXYPainter
- Parameters:
aGraphics
- The graphics to paint the object on.aRenderMode
- The mode to render the object in.aGXYContext
- The context in which the object is rendered.- Returns:
- whether the contour, the axis handles or the center point of the ellipse is touched.
- See Also:
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anchorPointSFCT
public void anchorPointSFCT(Graphics aGraphics, int aMode, ILcdGXYContext aGXYContext, Point aPointSFCT) throws TLcdNoBoundsException Description copied from class:ALcdGXYPainter
ImplementsILcdGXYPainter.anchorPointSFCT
.aPointSFCT
will be set to the center of the bounds calculated by boundsSFCT.- Specified by:
anchorPointSFCT
in interfaceILcdGXYPainter
- Overrides:
anchorPointSFCT
in classALcdGXYPainter
- Parameters:
aGraphics
- the Graphics on which the representation of the object is paintedaMode
- the mode the object is painted in (see class documentation)aGXYContext
- 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.aPointSFCT
- the point that has to be moved to the location of the anchor point of the representation of the object. This point must not be taken into account when the method has thrown a TLcdNoBoundsException.- Throws:
TLcdNoBoundsException
- if no anchor point can be determined for the representation of the object. This can be 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 projection as set in the views world reference.- See Also:
-
getCursor
Returns aCursor
that clarifies the render mode and context this painter is operating in. When no specificCursor
is required,null
is returned.- Specified by:
getCursor
in interfaceILcdGXYPainter
- Overrides:
getCursor
in classALcdGXYPainter
- Parameters:
aGraphics
- The graphics on which the object is painted.aRenderMode
- The mode to render the object in.aGXYContext
- The context in which the object is rendered.- Returns:
- a cursor to indicate the type of operating mode and context. Returns
null
if no particular cursor is required.
-
getGXYEditor
Returns this instance as editor for editing the specifiedObject
. If thisObject
is not the same as theObject
set to this painter, thesetObject(Object)
method is called to update the object set to the painter.- Specified by:
getGXYEditor
in interfaceILcdGXYEditorProvider
- Parameters:
aObject
- the object to be edited.- Returns:
- this instance as editor for editing the specified
Object
.
-
edit
This implementation edits the
ILcdEllipse
object set to the painter. The object needs to implement the interfaceILcd2DEditableEllipse
otherwise aClassCastException
will be thrown.In
ILcdGXYEditor.TRANSLATED
render mode, theILcdEllipse
object is edited as follows:- While touching an axis handle, the object gets translated as a whole.
- While touching the center point, the object gets translated as a whole.
- While touching the contour, the object gets translated as a whole.
In
ILcdGXYEditor.RESHAPED
render mode, theILcdEllipse
object is edited as follows:- While touching an axis handle, the length of the corresponding axis will change. Also the rotation angle of the axis will be affected.
The creation render mode behavior is defined by the
creation mode
. Further changes have to be done within edition mode.- In the
TWO_CLICK
mode, the first point determines the center point of the ellipse and the second the axis length and the rotation angle of the ellipse. - In the
THREE_CLICK
mode, the first point determines the center point of the ellipse, the second the semi-major axis length and the rotation angle of the ellipse, and the third the length of the semi-minor axis of the ellipse.
If, in all render modes, a snap target is found for a moved or created point, the snap target location is used for the moved/created point.
- Specified by:
edit
in interfaceILcdGXYEditor
- Parameters:
aGraphics
- The graphics to edit the object on.aRenderMode
- The mode to render the object in.aGXYContext
- The context to render the object in.- Returns:
- true if the object has changed when this method returns, false otherwise.
- Throws:
ClassCastException
- if the painter's object does not implementILcd2DEditableEllipse
.- See Also:
-
getCreationClickCount
public int getCreationClickCount()Returns either 2 or 3 depending on thecreation mode
(TWO_CLICK
orTHREE_CLICK
) as the number of required user interactions.- Specified by:
getCreationClickCount
in interfaceILcdGXYEditor
- Returns:
- either 2 or 3 depending on the
creation mode
. - See Also:
-
setModelModelTransformationClass
Sets the transformation class that should be used when snapping to points that are defined in a different reference than the reference of this painter's object. The transformation will be instantiated and setup to transform points from the model of the snap layer to points in the model which contains the current object of this painter. The default value is the
TLcdGeoReference2GeoReference
class.This property allows the painter to snap to points defined in a different model reference.
Instances of this specified class should implement
ILcdModelModelTransformation
, otherwise the snapping functionality to different model references will not work.- Parameters:
aModel2ModelTransformationClass
- the transformation used as described above.
-
acceptSnapTarget
Determines whether a snap target should be accepted or not. A snap target is accepted if the following conditions are met:
- The current object is an
ILcd2DEditableEllipse
. - The snap target is an
ILcdPoint
whose coordinates are expressed in the same coordinate system as the current objects coordinate system or the model to model transformation can transform the point to a point in the objects coordinate system. - The snap object is not the center point of the current object. If this is wanted, override the function and return true if the snap object is the center point.
- One of the axis corner points or the center point is touched or when both minor and
major axis are
0
. This enables snapping when creating an ellipse.
- Specified by:
acceptSnapTarget
in interfaceILcdGXYEditor
- Parameters:
aGraphics
- the graphics on which the snap target should be checked.aGXYContext
- the context in which the snap target should be checked.- Returns:
true
if the above conditions are met,false
otherwise.- See Also:
- The current object is an
-
snapTarget
Returns the center point of the
ILcdEllipse
if it is touched. If it was not touched,null
will be returned. Note that the center point is only returned if the center point is drawn (seeisDrawCenter()
) or when snapping to invisible points is enabled (seeisSnapToInvisiblePoints()
).- Specified by:
snapTarget
in interfaceILcdGXYPainter
- Overrides:
snapTarget
in classALcdGXYPainter
- Parameters:
aGraphics
- the graphics on which is worked.aGXYContext
- the context of the snapping.- Returns:
- the center point of the
ILcdEllipse
if it is touched,null
otherwise. - See Also:
-
supportSnap
This implementation supports snapping, always returnstrue
.- Specified by:
supportSnap
in interfaceILcdGXYPainter
- Overrides:
supportSnap
in classALcdGXYPainter
- Parameters:
aGraphics
- the graphics on which is worked.aGXYContext
- the context of the snapping.- Returns:
true
.
-
clone
Description copied from interface:ILcdCloneable
Makes
When for example extending fromObject.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 ); } }
- Specified by:
clone
in interfaceILcdCloneable
- Specified by:
clone
in interfaceILcdGXYEditorProvider
- Specified by:
clone
in interfaceILcdGXYPainterProvider
- Overrides:
clone
in classALcdGXYAreaPainter
- Returns:
- a clone of this painter provider.
- See Also:
-
ALcdGXYAreaPainter.getEditMode()
instead.