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/*
* Copyright (c) 2011, 2013, 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
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package com.sun.javafx.scene.control.skin;
import com.sun.javafx.scene.control.behavior.CellBehaviorBase;
import javafx.beans.InvalidationListener;
import javafx.beans.Observable;
import javafx.beans.WeakInvalidationListener;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.ReadOnlyDoubleProperty;
import javafx.scene.control.IndexedCell;
import javafx.scene.shape.Rectangle;
/**
*/
public abstract class TableCellSkinBase> extends CellSkinBase {
protected abstract ReadOnlyDoubleProperty columnWidthProperty(); // tableColumn.widthProperty()
protected abstract BooleanProperty columnVisibleProperty(); // tableColumn.visibleProperty()
// This property is set on the cell when we want to know its actual
// preferred width, not the width of the associated TableColumn.
// This is primarily used in NestedTableColumnHeader such that user double
// clicks result in the column being resized to fit the widest content in
// the column
static final String DEFER_TO_PARENT_PREF_WIDTH = "deferToParentPrefWidth";
boolean isDeferToParentForPrefWidth = false;
private InvalidationListener columnWidthListener = new InvalidationListener() {
@Override public void invalidated(Observable valueModel) {
getSkinnable().requestLayout();
}
};
private WeakInvalidationListener weakColumnWidthListener =
new WeakInvalidationListener(columnWidthListener);
public TableCellSkinBase(final C control, final B behavior) {
super(control, behavior);
// init(control) should not be called here - it should be called by the
// subclass after initialising itself. This is to prevent NPEs (for
// example, getVisibleLeafColumns() throws a NPE as the control itself
// is not yet set in subclasses).
}
protected void init(C control) {
// RT-22038
Rectangle clip = new Rectangle();
clip.widthProperty().bind(control.widthProperty());
clip.heightProperty().bind(control.heightProperty());
getSkinnable().setClip(clip);
// --- end of RT-22038
ReadOnlyDoubleProperty columnWidthProperty = columnWidthProperty();
if (columnWidthProperty != null) {
columnWidthProperty.addListener(weakColumnWidthListener);
}
registerChangeListener(control.visibleProperty(), "VISIBLE");
if (control.getProperties().containsKey(DEFER_TO_PARENT_PREF_WIDTH)) {
isDeferToParentForPrefWidth = true;
}
}
@Override protected void handleControlPropertyChanged(String p) {
super.handleControlPropertyChanged(p);
if ("VISIBLE".equals(p)) {
getSkinnable().setVisible(columnVisibleProperty().get());
}
}
@Override public void dispose() {
ReadOnlyDoubleProperty columnWidthProperty = columnWidthProperty();
if (columnWidthProperty != null) {
columnWidthProperty.removeListener(weakColumnWidthListener);
}
super.dispose();
}
@Override protected void layoutChildren(final double x, final double y,
final double w, final double h) {
// fit the cell within this space
// FIXME the subtraction of bottom padding isn't right here - but it
// results in better visuals, so I'm leaving it in place for now.
layoutLabelInArea(x, y, w, h - getSkinnable().getPadding().getBottom());
}
@Override protected double computePrefWidth(double height, double topInset, double rightInset, double bottomInset, double leftInset) {
if (isDeferToParentForPrefWidth) {
return super.computePrefWidth(height, topInset, rightInset, bottomInset, leftInset);
}
return columnWidthProperty().get();
}
}