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/*
* Copyright (c) 2012, 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package javafx.scene.control.skin;
import com.sun.javafx.scene.control.behavior.BehaviorBase;
import com.sun.javafx.scene.control.behavior.TreeTableCellBehavior;
import java.util.Map;
import javafx.beans.property.ReadOnlyObjectProperty;
import javafx.scene.Node;
import javafx.scene.control.*;
/**
* Default skin implementation for the {@link TreeTableCell} control.
*
* @param The type of the UI control (e.g. the type of the 'row'), this is wrapped in a TreeItem.
* @param The type of the content in the cell, based on its {@link TreeTableColumn}.
* @see TreeTableCell
* @since 9
*/
public class TreeTableCellSkin extends TableCellSkinBase, T, TreeTableCell> {
/* *************************************************************************
* *
* Private Fields *
* *
**************************************************************************/
private final BehaviorBase> behavior;
/* *************************************************************************
* *
* Constructors *
* *
**************************************************************************/
/**
* Creates a new TreeTableCellSkin instance, installing the necessary child
* nodes into the Control {@link Control#getChildren() children} list, as
* well as the necessary input mappings for handling key, mouse, etc events.
*
* @param control The control that this skin should be installed onto.
*/
public TreeTableCellSkin(TreeTableCell control) {
super(control);
// install default input map for the TreeTableCell control
behavior = new TreeTableCellBehavior<>(control);
// control.setInputMap(behavior.getInputMap());
}
/* *************************************************************************
* *
* Public API *
* *
**************************************************************************/
/** {@inheritDoc} */
@Override public void dispose() {
super.dispose();
if (behavior != null) {
behavior.dispose();
}
}
/* *************************************************************************
* *
* Private implementation *
* *
**************************************************************************/
/** {@inheritDoc} */
@Override public ReadOnlyObjectProperty> tableColumnProperty() {
return getSkinnable().tableColumnProperty();
}
/** {@inheritDoc} */
@Override
protected double computeMinWidth(double height, double topInset, double rightInset, double bottomInset,
double leftInset) {
return super.computeMinWidth(height, topInset, rightInset, bottomInset, leftInset) + calculateIndentation();
}
/** {@inheritDoc} */
@Override
protected void layoutChildren(double x, double y, double w, double h) {
double indentation = calculateIndentation();
x += indentation;
w -= indentation;
super.layoutChildren(x, y, w, h);
}
/** {@inheritDoc} */
@Override
protected double computePrefWidth(double height, double topInset, double rightInset, double bottomInset,
double leftInset) {
if (isDeferToParentForPrefWidth) {
return super.computePrefWidth(height, topInset, rightInset, bottomInset, leftInset) + calculateIndentation();
}
return super.computePrefWidth(height, topInset, rightInset, bottomInset, leftInset);
}
/** {@inheritDoc} */
@Override
protected double computePrefHeight(double width, double topInset, double rightInset, double bottomInset,
double leftInset) {
width -= calculateIndentation();
return super.computePrefHeight(width, topInset, rightInset, bottomInset, leftInset);
}
private double calculateIndentation() {
double indentation = 0;
// RT-27167: we must take into account the disclosure node and the
// indentation (which is not taken into account by the LabeledSkinBase.
final double height = getCellSize();
TreeTableCell cell = getSkinnable();
TreeTableColumn tableColumn = cell.getTableColumn();
if (tableColumn == null) return indentation;
// check if this column is the TreeTableView treeColumn (i.e. the
// column showing the disclosure node and graphic).
TreeTableView treeTable = cell.getTreeTableView();
if (treeTable == null) return indentation;
int columnIndex = treeTable.getVisibleLeafIndex(tableColumn);
TreeTableColumn treeColumn = treeTable.getTreeColumn();
if ((treeColumn == null && columnIndex != 0) || (treeColumn != null && !tableColumn.equals(treeColumn))) {
return indentation;
}
TreeTableRow treeTableRow = cell.getTableRow();
if (treeTableRow == null) return indentation;
TreeItem treeItem = treeTableRow.getTreeItem();
if (treeItem == null) return indentation;
int nodeLevel = treeTable.getTreeItemLevel(treeItem);
if (!treeTable.isShowRoot()) nodeLevel--;
double indentPerLevel = 10;
if (treeTableRow.getSkin() instanceof TreeTableRowSkin) {
indentPerLevel = ((TreeTableRowSkin)treeTableRow.getSkin()).getIndentationPerLevel();
}
indentation += nodeLevel * indentPerLevel;
// add in the width of the disclosure node, if one exists
Map, Double> mdwp = TableRowSkinBase.maxDisclosureWidthMap;
indentation += mdwp.containsKey(treeColumn) ? mdwp.get(treeColumn) : 0;
// adding in the width of the graphic on the tree item
Node graphic = treeItem.getGraphic();
indentation += graphic == null ? 0 : graphic.prefWidth(height);
return indentation;
}
}
