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com.jfoenix.controls.JFXTreeViewPath Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package com.jfoenix.controls;
import com.jfoenix.assets.JFoenixResources;
import com.jfoenix.svg.SVGGlyph;
import com.jfoenix.utils.JFXNodeUtils;
import javafx.css.*;
import javafx.css.converter.SizeConverter;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Node;
import javafx.scene.control.*;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.*;
import javafx.scene.paint.Color;
import javafx.scene.shape.Polygon;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* @author Shadi Shaheen
* @version 1.0
* @since 2017-02-11
*/
public class JFXTreeViewPath extends ScrollPane {
private PseudoClass firstClass = PseudoClass.getPseudoClass("first");
private PseudoClass nextClass = PseudoClass.getPseudoClass("next");
private PseudoClass lastClass = PseudoClass.getPseudoClass("last");
private Region clip = new Region();
private HBox container = new HBox();
private double lastX;
public JFXTreeViewPath(TreeView treeView) {
getStyleClass().add(DEFAULT_STYLE_CLASS);
setClip(clip);
clip.setBackground(new Background(new BackgroundFill(Color.BLACK, new CornerRadii(3), Insets.EMPTY)));
backgroundProperty().addListener(observable -> JFXNodeUtils.updateBackground(getBackground(), clip));
container.getStyleClass().add("buttons-container");
container.getChildren().add(new Label("Selection Path..."));
container.setAlignment(Pos.CENTER_LEFT);
container.widthProperty().addListener(observable -> setHvalue(getHmax()));
setContent(container);
setPannable(true);
setVbarPolicy(ScrollPane.ScrollBarPolicy.NEVER);
setHbarPolicy(ScrollPane.ScrollBarPolicy.NEVER);
setFitToHeight(true);
treeView.getSelectionModel().selectedItemProperty().addListener(observable -> {
TreeItem selectedItem = treeView.getSelectionModel().getSelectedItem();
TreeItem temp = selectedItem;
int level = treeView.getTreeItemLevel(temp) - (treeView.isShowRoot() ? 0 : 1);
if (temp != null) {
List newPath = new ArrayList<>();
while (temp != null) {
TreeItem parent = treeView.isShowRoot() ? temp : temp.getParent();
if (parent != null) {
Button button = null;
if (temp.isLeaf()) {
button = createLastButton(temp, parent.getParent());
button.pseudoClassStateChanged(lastClass, true);
} else if (parent.getParent() == null) {
button = createFirstButton(temp);
button.pseudoClassStateChanged(firstClass, true);
} else {
button = createNextButton(temp);
button.pseudoClassStateChanged(nextClass, true);
}
final TreeItem node = temp;
button.setOnAction(action -> treeView.scrollTo(treeView.getRow(node)));
final StackPane container = new StackPane(button);
container.setPickOnBounds(false);
if (parent.getParent() != null) {
container.setTranslateX((-getOffset()-1) * level--);
}
if (temp!=selectedItem) {
final SVGGlyph arrow = new SVGGlyph("M366 698l196-196-196-196 60-60 256 256-256 256z", Color.BLACK);
arrow.setSizeForWidth(6);
arrow.setMouseTransparent(true);
StackPane.setAlignment(arrow, Pos.CENTER_RIGHT);
container.getChildren().add(arrow);
}
newPath.add(0, container);
}
temp = temp.getParent();
}
container.getChildren().setAll(newPath);
}
});
container.addEventFilter(MouseEvent.MOUSE_PRESSED, event -> {
lastX = event.getX();
});
container.addEventFilter(MouseEvent.MOUSE_DRAGGED, event -> {
double dx = lastX - event.getX();
if (Math.abs(dx) > 0.5) {
double newHVal = (getHvalue() + dx / (container.getWidth()));
setHvalue(newHVal);
}
});
JFXScrollPane.smoothHScrolling(this);
}
@Override
protected void layoutChildren() {
super.layoutChildren();
clip.resizeRelocate(0,0,getWidth(), getHeight());
}
/**
* {@inheritDoc}
*/
@Override
public String getUserAgentStylesheet() {
return JFoenixResources.load("css/controls/jfx-tree-view-path.css").toExternalForm();
}
@Override
protected double computeMinHeight(double width) {
return super.computePrefHeight(width);
}
private JFXButton createNextButton(TreeItem temp) {
return new JFXButton(temp.getValue().toString()) {
{
setPadding(new Insets(getOffset(), 1.5 * getOffset(), getOffset(), 2 * getOffset()));
setBackground(new Background(new BackgroundFill(Color.TRANSPARENT, CornerRadii.EMPTY, Insets.EMPTY)));
}
@Override
protected void layoutChildren() {
super.layoutChildren();
double width = getWidth();
Polygon polygon = new Polygon();
final double height = getHeight();
polygon.getPoints().addAll(new Double[] {
0.0, 0.0,
width - getOffset(), 0.0,
width, height / 2,
width - getOffset(), height,
0.0, height,
getOffset(), height / 2});
setClip(polygon);
}
};
}
public JFXButton createFirstButton(TreeItem temp) {
return new JFXButton(temp.getValue().toString()) {
{
setPadding(new Insets(getOffset(), 1.5 * getOffset(), getOffset(), getOffset()));
setBackground(new Background(new BackgroundFill(Color.TRANSPARENT, CornerRadii.EMPTY, Insets.EMPTY)));
}
@Override
protected void layoutChildren() {
super.layoutChildren();
double width = getWidth();
Polygon polygon = new Polygon();
final double height = getHeight();
polygon.getPoints().addAll(new Double[] {
0.0, 0.0,
width - getOffset(), 0.0,
width, height / 2,
width - getOffset(), height,
0.0, height});
setClip(polygon);
}
};
}
private JFXButton createLastButton(TreeItem temp, TreeItem parent) {
return new JFXButton(temp.getValue().toString()) {
private boolean noParent = parent == null;
{
setPadding(new Insets(getOffset(), getOffset(), getOffset(), (noParent? 1 : 2) * getOffset()));
setBackground(new Background(new BackgroundFill(Color.TRANSPARENT, CornerRadii.EMPTY, Insets.EMPTY)));
}
@Override
protected void layoutChildren() {
super.layoutChildren();
double width = getWidth();
Polygon polygon = new Polygon();
final double height = getHeight();
polygon.getPoints().addAll(new Double[] {
0.0, 0.0,
width, 0.0,
width, height,
0.0, height,
noParent ? 0 : getOffset(), noParent ? 0 : height / 2});
setClip(polygon);
}
};
}
private static final String DEFAULT_STYLE_CLASS = "jfx-tree-view-path";
private StyleableDoubleProperty offset = new SimpleStyleableDoubleProperty(
StyleableProperties.OFFSET,
JFXTreeViewPath.this,
"offset",
10.0);
public double getOffset() {
return offset.get();
}
public StyleableDoubleProperty offsetProperty() {
return offset;
}
public void setOffset(double offset) {
this.offset.set(offset);
}
private static class StyleableProperties {
private static final CssMetaData OFFSET =
new CssMetaData("-jfx-offset",
SizeConverter.getInstance(), 10.0) {
@Override
public boolean isSettable(JFXTreeViewPath control) {
return control.offset == null || !control.offset.isBound();
}
@Override
public StyleableDoubleProperty getStyleableProperty(JFXTreeViewPath control) {
return control.offsetProperty();
}
};
private static final List> CHILD_STYLEABLES;
static {
final List> styleables =
new ArrayList<>(Control.getClassCssMetaData());
Collections.addAll(styleables,
OFFSET
);
CHILD_STYLEABLES = Collections.unmodifiableList(styleables);
}
}
// inherit the styleable properties from parent
private List> STYLEABLES;
@Override
public List> getControlCssMetaData() {
if (STYLEABLES == null) {
final List> styleables =
new ArrayList<>(ScrollPane.getClassCssMetaData());
styleables.addAll(getClassCssMetaData());
STYLEABLES = Collections.unmodifiableList(styleables);
}
return STYLEABLES;
}
public static List> getClassCssMetaData() {
return StyleableProperties.CHILD_STYLEABLES;
}
}
