eu.webtoolkit.jwt.WTreeTableNode Maven / Gradle / Ivy
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/*
* Copyright (C) 2009 Emweb bvba, Leuven, Belgium.
*
* See the LICENSE file for terms of use.
*/
package eu.webtoolkit.jwt;
import java.util.*;
import java.util.regex.*;
import java.io.*;
import java.lang.ref.*;
import java.util.concurrent.locks.ReentrantLock;
import javax.servlet.http.*;
import javax.servlet.*;
import eu.webtoolkit.jwt.*;
import eu.webtoolkit.jwt.chart.*;
import eu.webtoolkit.jwt.utils.*;
import eu.webtoolkit.jwt.servlet.*;
/**
* A specialized tree node which allows additional data to be associated with
* each node.
*
*
* Additional data for each column can be set using
* {@link WTreeTableNode#setColumnWidget(int column, WWidget widget)
* setColumnWidget()}.
*
*
CSS
*
* This widget is styled by the current CSS theme. See {@link WTreeNode} for
* details.
*
*
* @see WTreeNode
* @see WTreeTable
*/
public class WTreeTableNode extends WTreeNode {
/**
* Creates a new tree table node.
*
*
* @see WTreeNode#WTreeNode(CharSequence labelText, WIconPair labelIcon,
* WTreeNode parent)
*/
public WTreeTableNode(CharSequence labelText, WIconPair labelIcon,
WTreeTableNode parentNode) {
super(labelText, labelIcon);
this.table_ = null;
this.row_ = null;
this.columnWidgets_ = new ArrayList();
if (parentNode != null) {
parentNode.addChildNode(this);
}
}
/**
* Creates a new tree table node.
*
* Calls
* {@link #WTreeTableNode(CharSequence labelText, WIconPair labelIcon, WTreeTableNode parentNode)
* this(labelText, (WIconPair)null, (WTreeTableNode)null)}
*/
public WTreeTableNode(CharSequence labelText) {
this(labelText, (WIconPair) null, (WTreeTableNode) null);
}
/**
* Creates a new tree table node.
*
* Calls
* {@link #WTreeTableNode(CharSequence labelText, WIconPair labelIcon, WTreeTableNode parentNode)
* this(labelText, labelIcon, (WTreeTableNode)null)}
*/
public WTreeTableNode(CharSequence labelText, WIconPair labelIcon) {
this(labelText, labelIcon, (WTreeTableNode) null);
}
/**
* Sets a widget to be displayed in the given column for this node.
*
* Columns are counted starting from 0 for the tree list itself, and 1 for
* the first additional column.
*
* The node label (in column 0) is not considered a column widget. To set a
* custom widget in column 0, you can add a widget to the
* {@link WTreeNode#getLabelArea() WTreeNode#getLabelArea()}.
*/
public void setColumnWidget(int column, WWidget widget) {
--column;
this.createExtraColumns(column);
if (column < (int) this.columnWidgets_.size()) {
if (this.columnWidgets_.get(column).widget != null)
this.columnWidgets_.get(column).widget.remove();
this.columnWidgets_.set(column, new WTreeTableNode.ColumnWidget(
widget, true));
} else {
this.columnWidgets_.add(new WTreeTableNode.ColumnWidget(widget,
true));
}
widget.setInline(false);
widget.setFloatSide(Side.Left);
widget.resize(this.columnWidth(column + 1), WLength.Auto);
if (column == (int) this.columnWidgets_.size() - 1) {
this.row_.addWidget(widget);
} else {
this.row_.insertBefore(widget,
this.columnWidgets_.get(column + 1).widget);
}
}
/**
* Returns the widget set for a column.
*
* Returns the widget set previously using
* {@link WTreeTableNode#setColumnWidget(int column, WWidget widget)
* setColumnWidget()}, or null if no widget was previously set.
*/
public WWidget getColumnWidget(int column) {
--column;
return column < (int) this.columnWidgets_.size()
&& this.columnWidgets_.get(column).isSet ? this.columnWidgets_
.get(column).widget : null;
}
/**
* Returns the table for this node.
*
*
* @see WTreeTableNode#setTable(WTreeTable table)
*/
WTreeTable getTable() {
return this.table_;
}
public void insertChildNode(int index, WTreeNode node) {
super.insertChildNode(index, node);
if (this.table_ != null) {
(((node) instanceof WTreeTableNode ? (WTreeTableNode) (node) : null))
.setTable(this.table_);
}
}
/**
* Sets the table for this node.
*
* This method is called when the node is inserted, directly, or indirectly
* into a table.
*
* You may want to reimplement this method if you wish to customize the
* behaviour of the node depending on table properties. For example to only
* associate data with the node when the tree list is actually used inside a
* table.
*
*
* @see WTreeTableNode#getTable()
*/
protected void setTable(WTreeTable table) {
if (this.table_ != table) {
this.table_ = table;
for (int i = 0; i < this.getChildNodes().size(); ++i) {
(((this.getChildNodes().get(i)) instanceof WTreeTableNode ? (WTreeTableNode) (this
.getChildNodes().get(i))
: null)).setTable(table);
}
this.createExtraColumns(table.getColumnCount() - 1);
for (int i = 0; i < this.columnWidgets_.size(); ++i) {
WWidget w = this.columnWidgets_.get(i).widget;
w.resize(this.columnWidth(i + 1), w.getHeight());
}
}
}
private WTreeTable table_;
private WContainerWidget row_;
static class ColumnWidget {
public WWidget widget;
public boolean isSet;
public ColumnWidget(WWidget aWidget, boolean set) {
this.widget = aWidget;
this.isSet = set;
}
}
private List columnWidgets_;
private void createExtraColumns(int numColumns) {
if (!(this.row_ != null)) {
this.row_ = new WContainerWidget();
this.getLabelArea().insertBefore(this.row_,
this.getLabelArea().getChildren().get(0));
this.row_.setFloatSide(Side.Right);
this.getLabelArea().resize(
new WLength(100, WLength.Unit.Percentage), WLength.Auto);
this.getLabelArea().getTable().resize(
new WLength(100, WLength.Unit.Percentage), WLength.Auto);
}
while ((int) this.columnWidgets_.size() < numColumns) {
WText w = new WText(new WString(" "), this.row_);
w.setInline(false);
this.columnWidgets_.add(new WTreeTableNode.ColumnWidget(w, false));
w.setFloatSide(Side.Left);
w.resize(this.columnWidth(this.columnWidgets_.size()), new WLength(
1));
}
}
private WLength columnWidth(int column) {
if (this.table_ != null) {
return this.table_.columnWidth(column);
} else {
return WLength.Auto;
}
}
}