Class DefaultColumnHeaderRenderer
- java.lang.Object
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- org.eclipse.nebula.widgets.grid.AbstractRenderer
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- org.eclipse.nebula.widgets.grid.AbstractInternalWidget
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- org.eclipse.nebula.widgets.grid.GridHeaderRenderer
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- org.eclipse.nebula.widgets.grid.internal.DefaultColumnHeaderRenderer
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- All Implemented Interfaces:
IInternalWidget,IRenderer
- Direct Known Subclasses:
Win7GridColumnHeaderRenderer
public class DefaultColumnHeaderRenderer extends GridHeaderRenderer
The column header renderer.- Since:
- 2.0.0
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Field Summary
Fields Modifier and Type Field Description (package private) intarrowMarginprivate SortArrowRendererarrowRenderer(package private) intbottomMargin(package private) intimageSpacing(package private) intleftMargin(package private) intrightMarginprivate org.eclipse.swt.graphics.TextLayouttextLayout(package private) inttopMargin-
Fields inherited from class org.eclipse.nebula.widgets.grid.GridHeaderRenderer
truncationStyle
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Fields inherited from interface org.eclipse.nebula.widgets.grid.IInternalWidget
LeftMouseButtonDown, MouseMove
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Constructor Summary
Constructors Constructor Description DefaultColumnHeaderRenderer()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description private org.eclipse.swt.graphics.PointcomputeControlSize(GridColumn column)org.eclipse.swt.graphics.PointcomputeSize(org.eclipse.swt.graphics.GC gc, int wHint, int hHint, java.lang.Object value)Returns the size of the given value's visual representation.protected org.eclipse.swt.graphics.RectanglegetControlBounds(java.lang.Object value, boolean preferred)Returns the bounds of the control to displayorg.eclipse.swt.graphics.RectanglegetTextBounds(java.lang.Object value, boolean preferred)Returns the bounds of the text in the cell.private voidgetTextLayout(org.eclipse.swt.graphics.GC gc, GridColumn column)booleannotify(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.voidpaint(org.eclipse.swt.graphics.GC gc, java.lang.Object value)Paints the visual representation of the given value on the given GC.voidsetDisplay(org.eclipse.swt.widgets.Display display)Sets the display.-
Methods inherited from class org.eclipse.nebula.widgets.grid.GridHeaderRenderer
getHorizontalAlignment, getToggleBounds, getTruncationStyle, isWordWrap, setHorizontalAlignment, setTruncationStyle, setWordWrap
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Methods inherited from class org.eclipse.nebula.widgets.grid.AbstractInternalWidget
getHoverDetail, setHoverDetail
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Methods inherited from class org.eclipse.nebula.widgets.grid.AbstractRenderer
getBounds, getDisplay, getSize, isExpanded, isFocus, isHover, isMouseDown, isSelected, setBounds, setBounds, setExpanded, setFocus, setHover, setLocation, setLocation, setMouseDown, setSelected, setSize, setSize
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.eclipse.nebula.widgets.grid.IRenderer
setBounds, setBounds, setExpanded, setFocus, setHover, setLocation, setLocation, setMouseDown, setSelected, setSize, setSize
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Field Detail
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leftMargin
int leftMargin
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rightMargin
int rightMargin
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topMargin
int topMargin
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bottomMargin
int bottomMargin
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arrowMargin
int arrowMargin
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imageSpacing
int imageSpacing
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arrowRenderer
private SortArrowRenderer arrowRenderer
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textLayout
private org.eclipse.swt.graphics.TextLayout textLayout
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Method Detail
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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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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
Transformto 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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setDisplay
public void setDisplay(org.eclipse.swt.widgets.Display display)
Sets the display.- Specified by:
setDisplayin interfaceIRenderer- Overrides:
setDisplayin classAbstractRenderer- Parameters:
display- Display.
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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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getTextBounds
public org.eclipse.swt.graphics.Rectangle getTextBounds(java.lang.Object value, boolean preferred)Returns the bounds of the text in the cell. This is used when displaying in-place tooltips. Ifnullis returned here, in-place tooltips will not be displayed. If thepreferredargument istruethen the returned bounds should be large enough to show the entire text. Ifpreferredisfalsethen the returned bounds should be be relative to the current bounds.- Overrides:
getTextBoundsin classGridHeaderRenderer- Parameters:
value- the object being rendered.preferred- true if the preferred width of the text should be returned.- Returns:
- bounds of the text.
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getControlBounds
protected org.eclipse.swt.graphics.Rectangle getControlBounds(java.lang.Object value, boolean preferred)Description copied from class:GridHeaderRendererReturns the bounds of the control to display- Overrides:
getControlBoundsin classGridHeaderRenderer- Parameters:
value- the control to displaypreferred- iftrue, compute the preferred size- Returns:
- the bounds for the control or
nullif no control is rendered - See Also:
GridHeaderRenderer.getControlBounds(java.lang.Object, boolean)
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computeControlSize
private org.eclipse.swt.graphics.Point computeControlSize(GridColumn column)
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getTextLayout
private void getTextLayout(org.eclipse.swt.graphics.GC gc, GridColumn column)
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