Package org.eclipse.nebula.widgets.grid
Class DefaultCellRenderer
java.lang.Object
org.eclipse.nebula.widgets.grid.AbstractRenderer
org.eclipse.nebula.widgets.grid.AbstractInternalWidget
org.eclipse.nebula.widgets.grid.GridCellRenderer
org.eclipse.nebula.widgets.grid.DefaultCellRenderer
- All Implemented Interfaces:
IInternalWidget
,IRenderer
public class DefaultCellRenderer extends GridCellRenderer
The renderer for a cell in Grid.
- Since:
- 2.0.0
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Field Summary
Fields Modifier and Type Field Description (package private) int
bottomMargin
(package private) int
leftMargin
(package private) int
rightMargin
(package private) int
textBottomMargin
(package private) int
textTopMargin
(package private) int
topMargin
(package private) int
treeIndent
Fields inherited from interface org.eclipse.nebula.widgets.grid.IInternalWidget
LeftMouseButtonDown, MouseMove
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Constructor Summary
Constructors Constructor Description DefaultCellRenderer()
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Method Summary
Modifier and Type Method Description 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.org.eclipse.swt.graphics.Rectangle
getTextBounds(GridItem item, boolean preferred)
Returns the bounds of the text in the cell.boolean
notify(int event, org.eclipse.swt.graphics.Point point, java.lang.Object value)
Mechanism used to notify the light weight widgets that an event occurred that it might be interested in.void
paint(org.eclipse.swt.graphics.GC gc, java.lang.Object value)
Paints the visual representation of the given value on the given GC.void
setCheck(boolean check)
void
setTree(boolean tree)
Methods inherited from class org.eclipse.nebula.widgets.grid.GridCellRenderer
getAlignment, getColumn, getRow, getTruncationStyle, getVerticalAlignment, isCellFocus, isCellSelected, isCheck, isColumnHover, isDragging, isRowFocus, isRowHover, isTree, isWordWrap, setAlignment, setCellFocus, setCellSelected, setColumn, setColumnHover, setDragging, setRow, setRowFocus, setRowHover, setTruncationStyle, setVerticalAlignment, setWordWrap
Methods inherited from class org.eclipse.nebula.widgets.grid.AbstractInternalWidget
getHoverDetail, setHoverDetail
Methods inherited from class org.eclipse.nebula.widgets.grid.AbstractRenderer
getBounds, getDisplay, getSize, isExpanded, isFocus, isHover, isMouseDown, isSelected, setBounds, setBounds, setDisplay, setExpanded, setFocus, setHover, setLocation, setLocation, setMouseDown, setSelected, setSize, setSize
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface org.eclipse.nebula.widgets.grid.IRenderer
setBounds, setBounds, setDisplay, setExpanded, setFocus, setHover, setLocation, setLocation, setMouseDown, setSelected, setSize, setSize
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Field Details
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leftMargin
int leftMargin -
rightMargin
int rightMargin -
topMargin
int topMargin -
bottomMargin
int bottomMargin -
textTopMargin
int textTopMargin -
textBottomMargin
int textBottomMargin -
treeIndent
int treeIndent
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Constructor Details
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DefaultCellRenderer
public DefaultCellRenderer()
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Method Details
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paint
public void paint(org.eclipse.swt.graphics.GC gc, java.lang.Object value)Paints the visual representation of the given value on the given GC. The actual class of the value object is determined by the use of the implementing class.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.- Parameters:
gc
- GC to paint withvalue
- the value being painted
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computeSize
public 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.- Parameters:
gc
- convenience GC for string and text extentswHint
- given width (or SWT.DEFAULT)hHint
- given height (or SWT.DEFAULT)value
- value to be sized- Returns:
- the size
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notify
public boolean notify(int event, org.eclipse.swt.graphics.Point point, java.lang.Object value)Mechanism used to notify the light weight widgets that an event occurred that it might be interested in.- Parameters:
event
- Event type.point
- Location of event.value
- New value.- Returns:
- widget handled the event.
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setTree
public void setTree(boolean tree)- Overrides:
setTree
in classGridCellRenderer
- Parameters:
tree
- The tree to set.
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setCheck
public void setCheck(boolean check)- Overrides:
setCheck
in classGridCellRenderer
- Parameters:
check
- The check to set.
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getTextBounds
Returns the bounds of the text in the cell. This is used when displaying in-place tooltips. Ifnull
is returned here, in-place tooltips will not be displayed. If thepreferred
argument istrue
then the returned bounds should be large enough to show the entire text. Ifpreferred
isfalse
then the returned bounds should be be relative to the current bounds.- Overrides:
getTextBounds
in classGridCellRenderer
- Parameters:
item
- item to calculate text bounds.preferred
- true if the preferred width of the text should be returned.- Returns:
- bounds of the text.
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