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public abstract class TableView extends BoxView
Implements View interface for a table, that is composed of an element structure where the child elements of the element this view is responsible for represent rows and the child elements of the row elements are cells. The cell elements can have an arbitrary element structure under them, which will be built with the ViewFactory returned by the getViewFactory method.
TABLE ROW CELL CELL ROW CELL CELL
This is implemented as a hierarchy of boxes, the table itself is a vertical box, the rows are horizontal boxes, and the cells are vertical boxes. The cells are allowed to span multiple columns and rows. By default, the table can be thought of as being formed over a grid (i.e. somewhat like one would find in gridbag layout), where table cells can request to span more than one grid cell. The default horizontal span of table cells will be based upon this grid, but can be changed by reimplementing the requested span of the cell (i.e. table cells can have independant spans if desired).
Nested Class Summary | |
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class |
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class |
View of a row in a row-centric table. |
Field Summary |
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Fields inherited from class javax.swing.text.View |
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BadBreakWeight, ExcellentBreakWeight, ForcedBreakWeight, GoodBreakWeight, X_AXIS, Y_AXIS |
Constructor Summary | |
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Constructs a TableView for the given element. |
Method Summary | |
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protected SizeRequirements |
calculateMinorAxisRequirements(int axis, SizeRequirements r) Calculate the requirements for the minor axis. |
protected TableView.TableCell |
createTableCell(Element elem) |
protected TableView.TableRow |
createTableRow(Element elem) Creates a new table row. |
protected void |
Forwards the given DocumentEvent to the child views
that need to be notified of the change to the model.
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protected View |
getViewAtPosition(int pos, Rectangle a) Fetches the child view that represents the given position in the model. |
protected void |
layoutColumns(int targetSpan, int[] offsets, int[] spans, SizeRequirements[] reqs) Lays out the columns to fit within the given target span. |
protected void |
layoutMinorAxis(int targetSpan, int axis, int[] offsets, int[] spans) Perform layout for the minor axis of the box (i.e. |
void |
Change the child views. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public TableView(Element elem)
elem
- the element that this view is responsible forMethod Detail |
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protected SizeRequirements calculateMinorAxisRequirements(int axis, SizeRequirements r)
This is implemented to calculate the requirements as the sum of the requirements of the columns.
calculateMinorAxisRequirements
in class BoxView
axis
r
protected TableView.TableCell createTableCell(Element elem)
elem
- an elementprotected TableView.TableRow createTableRow(Element elem)
elem
- an elementprotected void forwardUpdate(DocumentEvent.ElementChange ec, DocumentEvent e, Shape a, ViewFactory f)
forwardUpdate
in class BoxView
ec
e
a
f
protected View getViewAtPosition(int pos, Rectangle a)
getViewAtPosition
in class CompositeView
pos
- the search position >= 0a
- the allocation to the table on entry, and the
allocation of the view containing the position on exitnull
if there isn't oneprotected void layoutColumns(int targetSpan, int[] offsets, int[] spans, SizeRequirements[] reqs)
targetSpan
- the given span for total of all the table
columnsoffsets
- the return value of the offset from the
origin for each columnspans
- the return value of how much to allocated to
each columnreqs
- the requirements desired for each column. This
is the column maximum of the cells minimum, preferred, and
maximum requested spanprotected void layoutMinorAxis(int targetSpan, int axis, int[] offsets, int[] spans)
This is implemented to call the layoutColumns method, and then forward to the superclass to actually carry out the layout of the tables rows.
layoutMinorAxis
in class BoxView
targetSpan
- the total span given to the view, which
whould be used to layout the children.axis
- the axis being layed out.offsets
- the offsets from the origin of the view for
each of the child views. This is a return value and is
filled in by the implementation of this method.spans
- the span of each child view. This is a return
value and is filled in by the implementation of this method.public void replace(int offset, int length, View[] views)
replace
in class BoxView
offset
length
views
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