eu.hansolo.medusa.skins.FlatSkin Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of Medusa Show documentation
Show all versions of Medusa Show documentation
Medusa is a JavaFX 8 library containing gauges and clocks
/*
* Copyright (c) 2016 by Gerrit Grunwald
*
* Licensed 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 eu.hansolo.medusa.skins;
import eu.hansolo.medusa.Fonts;
import eu.hansolo.medusa.Gauge;
import eu.hansolo.medusa.Section;
import eu.hansolo.medusa.tools.Helper;
import javafx.geometry.Insets;
import javafx.scene.control.Skin;
import javafx.scene.control.SkinBase;
import javafx.scene.layout.Background;
import javafx.scene.layout.BackgroundFill;
import javafx.scene.layout.Border;
import javafx.scene.layout.BorderStroke;
import javafx.scene.layout.BorderStrokeStyle;
import javafx.scene.layout.BorderWidths;
import javafx.scene.layout.CornerRadii;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Arc;
import javafx.scene.shape.ArcType;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Line;
import javafx.scene.shape.StrokeLineCap;
import javafx.scene.shape.StrokeType;
import javafx.scene.text.Text;
import java.util.List;
import java.util.Locale;
/**
* Created by hansolo on 06.01.16.
*/
public class FlatSkin extends SkinBase implements Skin {
private static final double PREFERRED_WIDTH = 250;
private static final double PREFERRED_HEIGHT = 250;
private static final double MINIMUM_WIDTH = 50;
private static final double MINIMUM_HEIGHT = 50;
private static final double MAXIMUM_WIDTH = 1024;
private static final double MAXIMUM_HEIGHT = 1024;
private static final double ANGLE_RANGE = 360;
private double size;
private Circle colorRing;
private Arc bar;
private Line separator;
private Text titleText;
private Text valueText;
private Text unitText;
private Pane pane;
private double minValue;
private double range;
private double angleStep;
private boolean colorGradientEnabled;
private int noOfGradientStops;
private boolean sectionsVisible;
private List sections;
private String formatString;
private Locale locale;
// ******************** Constructors **************************************
public FlatSkin(Gauge gauge) {
super(gauge);
if (gauge.isAutoScale()) gauge.calcAutoScale();
minValue = gauge.getMinValue();
range = gauge.getRange();
angleStep = ANGLE_RANGE / range;
colorGradientEnabled = gauge.isGradientBarEnabled();
noOfGradientStops = gauge.getGradientBarStops().size();
sectionsVisible = gauge.getSectionsVisible();
sections = gauge.getSections();
formatString = new StringBuilder("%.").append(Integer.toString(gauge.getDecimals())).append("f").toString();
locale = gauge.getLocale();
initGraphics();
registerListeners();
setBar(gauge.getCurrentValue());
}
// ******************** Initialization ************************************
private void initGraphics() {
// Set initial size
if (Double.compare(getSkinnable().getPrefWidth(), 0.0) <= 0 || Double.compare(getSkinnable().getPrefHeight(), 0.0) <= 0 ||
Double.compare(getSkinnable().getWidth(), 0.0) <= 0 || Double.compare(getSkinnable().getHeight(), 0.0) <= 0) {
if (getSkinnable().getPrefWidth() > 0 && getSkinnable().getPrefHeight() > 0) {
getSkinnable().setPrefSize(getSkinnable().getPrefWidth(), getSkinnable().getPrefHeight());
} else {
getSkinnable().setPrefSize(PREFERRED_WIDTH, PREFERRED_HEIGHT);
}
}
colorRing = new Circle(PREFERRED_WIDTH * 0.5, PREFERRED_HEIGHT * 0.5, PREFERRED_WIDTH * 0.5);
colorRing.setFill(Color.TRANSPARENT);
colorRing.setStrokeWidth(PREFERRED_WIDTH * 0.0075);
colorRing.setStroke(getSkinnable().getBarColor());
bar = new Arc(PREFERRED_WIDTH * 0.5, PREFERRED_HEIGHT * 0.5, PREFERRED_WIDTH * 0.468, PREFERRED_HEIGHT * 0.468, 90, 0);
bar.setType(ArcType.OPEN);
bar.setStroke(getSkinnable().getBarColor());
bar.setStrokeWidth(PREFERRED_WIDTH * 0.15);
bar.setStrokeLineCap(StrokeLineCap.BUTT);
bar.setFill(null);
separator = new Line(PREFERRED_WIDTH * 0.5, 1, PREFERRED_WIDTH * 0.5, 0.16667 * PREFERRED_HEIGHT);
separator.setStroke(getSkinnable().getBorderPaint());
separator.setFill(Color.TRANSPARENT);
titleText = new Text(getSkinnable().getTitle());
titleText.setFont(Fonts.robotoLight(PREFERRED_WIDTH * 0.08));
titleText.setFill(getSkinnable().getTitleColor());
Helper.enableNode(titleText, !getSkinnable().getTitle().isEmpty());
valueText = new Text(String.format(locale, formatString, getSkinnable().getCurrentValue()));
valueText.setFont(Fonts.robotoRegular(PREFERRED_WIDTH * 0.27333));
valueText.setFill(getSkinnable().getValueColor());
Helper.enableNode(valueText, getSkinnable().isValueVisible());
unitText = new Text(getSkinnable().getUnit());
unitText.setFont(Fonts.robotoLight(PREFERRED_WIDTH * 0.08));
unitText.setFill(getSkinnable().getUnitColor());
Helper.enableNode(unitText, !getSkinnable().getUnit().isEmpty());
pane = new Pane(colorRing, bar, separator, titleText, valueText, unitText);
pane.setBackground(new Background(new BackgroundFill(getSkinnable().getBackgroundPaint(), new CornerRadii(1024), Insets.EMPTY)));
pane.setBorder(new Border(new BorderStroke(getSkinnable().getBorderPaint(), BorderStrokeStyle.SOLID, new CornerRadii(1024), new BorderWidths(getSkinnable().getBorderWidth()))));
getChildren().setAll(pane);
}
private void registerListeners() {
getSkinnable().widthProperty().addListener(o -> handleEvents("RESIZE"));
getSkinnable().heightProperty().addListener(o -> handleEvents("RESIZE"));
getSkinnable().setOnUpdate(e -> handleEvents(e.eventType.name()));
getSkinnable().currentValueProperty().addListener(o -> setBar(getSkinnable().getCurrentValue()));
}
// ******************** Methods *******************************************
@Override protected double computeMinWidth(final double HEIGHT, final double TOP, final double RIGHT, final double BOTTOM, final double LEFT) { return MINIMUM_WIDTH; }
@Override protected double computeMinHeight(final double WIDTH, final double TOP, final double RIGHT, final double BOTTOM, final double LEFT) { return MINIMUM_HEIGHT; }
@Override protected double computePrefWidth(final double HEIGHT, final double TOP, final double RIGHT, final double BOTTOM, final double LEFT) { return super.computePrefWidth(HEIGHT, TOP, RIGHT, BOTTOM, LEFT); }
@Override protected double computePrefHeight(final double WIDTH, final double TOP, final double RIGHT, final double BOTTOM, final double LEFT) { return super.computePrefHeight(WIDTH, TOP, RIGHT, BOTTOM, LEFT); }
@Override protected double computeMaxWidth(final double HEIGHT, final double TOP, final double RIGHT, final double BOTTOM, final double LEFT) { return MAXIMUM_WIDTH; }
@Override protected double computeMaxHeight(final double WIDTH, final double TOP, final double RIGHT, final double BOTTOM, final double LEFT) { return MAXIMUM_HEIGHT; }
private void handleEvents(final String EVENT_TYPE) {
if ("RESIZE".equals(EVENT_TYPE)) {
resize();
redraw();
} else if ("REDRAW".equals(EVENT_TYPE)) {
redraw();
} else if ("RECALC".equals(EVENT_TYPE)) {
minValue = getSkinnable().getMinValue();
range = getSkinnable().getRange();
angleStep = ANGLE_RANGE / range;
sections = getSkinnable().getSections();
redraw();
setBar(getSkinnable().getCurrentValue());
} else if ("VISIBILITY".equals(EVENT_TYPE)) {
Helper.enableNode(titleText, !getSkinnable().getTitle().isEmpty());
Helper.enableNode(unitText, !getSkinnable().getUnit().isEmpty());
Helper.enableNode(valueText, getSkinnable().isValueVisible());
}
}
private void setBar(final double VALUE) {
if (minValue > 0) {
bar.setLength((minValue - VALUE) * angleStep);
} else {
bar.setLength(-VALUE * angleStep);
}
setBarColor(VALUE);
valueText.setText(String.format(locale, formatString, VALUE));
resizeValueText();
}
private void setBarColor(final double VALUE) {
if (!sectionsVisible && !colorGradientEnabled) {
bar.setStroke(getSkinnable().getBarColor());
colorRing.setStroke(getSkinnable().getBarColor());
} else if (colorGradientEnabled && noOfGradientStops > 1) {
Color dynamicColor = getSkinnable().getGradientLookup().getColorAt((VALUE - minValue) / range);
bar.setStroke(dynamicColor);
colorRing.setStroke(dynamicColor);
} else {
for (Section section : sections) {
if (section.contains(VALUE)) {
bar.setStroke(section.getColor());
colorRing.setStroke(section.getColor());
break;
}
}
}
}
// ******************** Resizing ******************************************
private void resizeTitleText() {
double maxWidth = 0.56667 * size;
double fontSize = 0.08 * size;
titleText.setFont(Fonts.robotoLight(fontSize));
if (titleText.getLayoutBounds().getWidth() > maxWidth) { Helper.adjustTextSize(titleText, maxWidth, fontSize); }
titleText.relocate((size - titleText.getLayoutBounds().getWidth()) * 0.5, size * 0.225);
}
private void resizeValueText() {
double maxWidth = 0.5 * size;
double fontSize = 0.3 * size;
valueText.setFont(Fonts.robotoRegular(fontSize));
if (valueText.getLayoutBounds().getWidth() > maxWidth) { Helper.adjustTextSize(valueText, maxWidth, fontSize); }
valueText.relocate((size - valueText.getLayoutBounds().getWidth()) * 0.5, (size - valueText.getLayoutBounds().getHeight()) * 0.5);
}
private void resizeUnitText() {
double maxWidth = 0.56667 * size;
double fontSize = 0.08 * size;
unitText.setFont(Fonts.robotoLight(fontSize));
if (unitText.getLayoutBounds().getWidth() > maxWidth) { Helper.adjustTextSize(unitText, maxWidth, fontSize); }
unitText.relocate((size - unitText.getLayoutBounds().getWidth()) * 0.5, size * 0.66);
}
private void resize() {
double width = getSkinnable().getWidth() - getSkinnable().getInsets().getLeft() - getSkinnable().getInsets().getRight();
double height = getSkinnable().getHeight() - getSkinnable().getInsets().getTop() - getSkinnable().getInsets().getBottom();
size = width < height ? width : height;
if (width > 0 && height > 0) {
pane.setMaxSize(size, size);
pane.relocate((width - size) * 0.5, (height - size) * 0.5);
colorRing.setCenterX(size * 0.5);
colorRing.setCenterY(size * 0.5);
colorRing.setRadius(size * 0.5);
colorRing.setStrokeWidth(size * 0.0075);
colorRing.setStrokeType(StrokeType.INSIDE);
bar.setCenterX(size * 0.5);
bar.setCenterY(size * 0.5);
bar.setRadiusX(size * 0.4135);
bar.setRadiusY(size * 0.4135);
bar.setStrokeWidth(size * 0.12);
separator.setStartX(size * 0.5);
separator.setStartY(size * 0.0275);
separator.setEndX(size * 0.5);
separator.setEndY(size * 0.145);
resizeTitleText();
resizeValueText();
resizeUnitText();
}
}
private void redraw() {
locale = getSkinnable().getLocale();
formatString = new StringBuilder("%.").append(Integer.toString(getSkinnable().getDecimals())).append("f").toString();
colorGradientEnabled = getSkinnable().isGradientBarEnabled();
noOfGradientStops = getSkinnable().getGradientBarStops().size();
sectionsVisible = getSkinnable().getSectionsVisible();
pane.setBackground(new Background(new BackgroundFill(getSkinnable().getBackgroundPaint(), new CornerRadii(1024), Insets.EMPTY)));
pane.setBorder(new Border(new BorderStroke(getSkinnable().getBorderPaint(), BorderStrokeStyle.SOLID, new CornerRadii(1024), new BorderWidths(getSkinnable().getBorderWidth() / PREFERRED_WIDTH * size))));
setBarColor(getSkinnable().getCurrentValue());
valueText.setFill(getSkinnable().getValueColor());
unitText.setFill(getSkinnable().getUnitColor());
titleText.setFill(getSkinnable().getTitleColor());
separator.setStroke(getSkinnable().getBorderPaint());
titleText.setText(getSkinnable().getTitle());
resizeTitleText();
unitText.setText(getSkinnable().getUnit());
resizeUnitText();
}
}