|
Eclipse Platform Release 3.0 |
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Objectorg.eclipse.swt.widgets.Layout
org.eclipse.jface.text.source.SourceViewer.RulerLayout
Layout of a source viewer. Vertical ruler, text widget, and overview ruler are shown side by side.
Field Summary | |
protected int |
fGap
The gap between the text viewer and the vertical ruler. |
Constructor Summary | |
SourceViewer.RulerLayout(int gap)
Creates a new ruler layout with the given gap between text viewer and vertical ruler. |
Method Summary | |
protected Point |
computeSize(Composite composite,
int wHint,
int hHint,
boolean flushCache)
Computes and returns the size of the specified composite's client area according to this layout. |
protected void |
layout(Composite composite,
boolean flushCache)
Lays out the children of the specified composite according to this layout. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
protected int fGap
Constructor Detail |
public SourceViewer.RulerLayout(int gap)
gap
- the gap between text viewer and vertical rulerMethod Detail |
protected Point computeSize(Composite composite, int wHint, int hHint, boolean flushCache)
Layout
This method computes the minimum size that the client area of the composite must be in order to position all children at their minimum size inside the composite according to the layout algorithm encoded by this layout.
When a width or height hint is supplied, it is used to constrain the result. For example, if a width hint is provided that is less than the minimum width of the client area, the layout may choose to wrap and increase height, clip, overlap, or otherwise constrain the children.
computeSize
in class Layout
composite
- a composite widget using this layoutwHint
- width (SWT.DEFAULT
for minimum)hHint
- height (SWT.DEFAULT
for minimum)flushCache
- true
means flush cached layout values
Layout.layout(org.eclipse.swt.widgets.Composite, boolean)
,
Control.getBorderWidth()
,
Control.getBounds()
,
Control.getSize()
,
Control.pack()
,
"computeTrim, getClientArea for controls that implement them"protected void layout(Composite composite, boolean flushCache)
Layout
This method positions and sizes the children of a composite using the layout algorithm encoded by this layout. Children of the composite are positioned in the client area of the composite. The position of the composite is not altered by this method.
When the flush cache hint is true, the layout is instructed to flush any cached values associated with the children. Typically, a layout will cache the preferred sizes of the children to avoid the expense of computing these values each time the widget is layed out.
When layout is triggered explicitly by the programmer the flush cache hint is true. When layout is triggered by a resize, either caused by the programmer or by the user, the hint is false.
layout
in class Layout
composite
- a composite widget using this layoutflushCache
- true
means flush cached layout values
|
Eclipse Platform Release 3.0 |
||||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
Guidelines for using Eclipse APIs.
Copyright (c) IBM Corp. and others 2000, 2004. All rights reserved.