public abstract class AbstractRenderer
extends java.lang.Object
NOTE: THIS WIDGET AND ITS API ARE STILL UNDER DEVELOPMENT. THIS IS A PRE-RELEASE ALPHA VERSION. USERS SHOULD EXPECT API CHANGES IN FUTURE VERSIONS.
Renders a single visual unit.Constructor and Description |
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AbstractRenderer() |
Modifier and Type | Method and Description |
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abstract org.eclipse.swt.graphics.Point |
computeSize(org.eclipse.swt.graphics.GC gc,
int wHint,
int hHint,
java.lang.Object value)
Returns the size of the given value's visual representation.
|
void |
dispose()
Disposes of any resources managed by this renderer.
|
org.eclipse.swt.graphics.Rectangle |
getBounds()
Returns the bounds.
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org.eclipse.swt.graphics.Point |
getSize()
Returns the size.
|
abstract void |
initialize(org.eclipse.swt.widgets.Control parent)
Performs any initialization logic (such as creating new colors or fonts).
|
boolean |
isDisposed() |
boolean |
isExpanded()
Returns the expansion state.
|
boolean |
isFocus()
Returns a boolean value indicating if this renderer has focus.
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boolean |
isHover()
Returns the hover state.
|
boolean |
isMouseDown()
Returns the boolean value indicating if the renderer has the mouseDown
state.
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boolean |
isSelected()
Returns the boolean state indicating if the selected state is set.
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abstract void |
paint(org.eclipse.swt.graphics.GC gc,
java.lang.Object value)
Paints the visual representation of the given value on the given GC.
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void |
setBounds(int x,
int y,
int width,
int height)
Sets the bounds of the drawing.
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void |
setBounds(org.eclipse.swt.graphics.Rectangle bounds)
Sets the bounds of the drawing.
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protected void |
setDisposed(boolean disposed) |
void |
setExpanded(boolean expanded)
Sets the expansion state of this renderer.
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void |
setFocus(boolean focus)
Sets focus state.
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void |
setHover(boolean hover)
Sets the hover state.
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void |
setLocation(int x,
int y)
Sets the location of the drawing.
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void |
setLocation(org.eclipse.swt.graphics.Point location)
Sets the location of the drawing.
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void |
setMouseDown(boolean mouseDown)
Sets the mouse down state.
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void |
setSelected(boolean selected)
Sets the selected state.
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void |
setSize(int width,
int height)
Sets the area of the drawing.
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void |
setSize(org.eclipse.swt.graphics.Point size)
Sets the area of the drawing.
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public org.eclipse.swt.graphics.Rectangle getBounds()
public void setBounds(int x, int y, int width, int height)
x
- X coordinate.y
- Y coordinate.width
- Width.height
- Height.public void setBounds(org.eclipse.swt.graphics.Rectangle bounds)
bounds
- Bounds.public org.eclipse.swt.graphics.Point getSize()
public void setLocation(int x, int y)
x
- X.y
- Y.public void setLocation(org.eclipse.swt.graphics.Point location)
location
- Location.public void setSize(int width, int height)
width
- Width.height
- Height.public void setSize(org.eclipse.swt.graphics.Point size)
size
- Size.public boolean isFocus()
public void setFocus(boolean focus)
focus
- focus state.public boolean isHover()
public void setHover(boolean hover)
hover
- Hover state.public boolean isMouseDown()
public void setMouseDown(boolean mouseDown)
mouseDown
- Mouse state.public boolean isSelected()
public void setSelected(boolean selected)
selected
- Selection state.public boolean isExpanded()
public void setExpanded(boolean expanded)
expanded
- The expanded to set.public abstract void paint(org.eclipse.swt.graphics.GC gc, java.lang.Object value)
Implementors need to respect the bounds values that may have been
specified. The bounds values may affect the x and y values for all
drawing operations as well as the width and heights. Implementors may use
a Transform
to translate the coordinates of all the
drawing operations, otherwise they will need to offset each draw.
gc
- GC to paint withvalue
- the value being paintedpublic abstract org.eclipse.swt.graphics.Point computeSize(org.eclipse.swt.graphics.GC gc, int wHint, int hHint, java.lang.Object value)
gc
- convenience GC for string and text extentswHint
- given width (or SWT.DEFAULT)hHint
- given height (or SWT.DEFAULT)value
- value to be sizedpublic abstract void initialize(org.eclipse.swt.widgets.Control parent)
parent
- control that is using the rendererpublic void dispose()
public boolean isDisposed()
protected void setDisposed(boolean disposed)
disposed
- the disposed to set