eu.hansolo.medusa.skins.FlatSkin Maven / Gradle / Ivy
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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 java.util.List;
import java.util.Locale;
import javafx.beans.InvalidationListener;
import javafx.geometry.Insets;
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 static eu.hansolo.medusa.tools.Helper.formatNumber;
/**
* Created by hansolo on 06.01.16.
*/
public class FlatSkin extends GaugeSkinBase {
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 InvalidationListener currentValueListener;
// ******************** 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();
currentValueListener = o -> setBar(gauge.getCurrentValue());
initGraphics();
registerListeners();
setBar(gauge.getCurrentValue());
}
// ******************** Initialization ************************************
private void initGraphics() {
// Set initial size
if (Double.compare(gauge.getPrefWidth(), 0.0) <= 0 || Double.compare(gauge.getPrefHeight(), 0.0) <= 0 ||
Double.compare(gauge.getWidth(), 0.0) <= 0 || Double.compare(gauge.getHeight(), 0.0) <= 0) {
if (gauge.getPrefWidth() > 0 && gauge.getPrefHeight() > 0) {
gauge.setPrefSize(gauge.getPrefWidth(), gauge.getPrefHeight());
} else {
gauge.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(gauge.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(gauge.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(gauge.getBorderPaint());
separator.setFill(Color.TRANSPARENT);
titleText = new Text(gauge.getTitle());
titleText.setFont(Fonts.robotoLight(PREFERRED_WIDTH * 0.08));
titleText.setFill(gauge.getTitleColor());
Helper.enableNode(titleText, !gauge.getTitle().isEmpty());
valueText = new Text(formatNumber(gauge.getLocale(), gauge.getFormatString(), gauge.getDecimals(), gauge.getCurrentValue()));
valueText.setFont(Fonts.robotoRegular(PREFERRED_WIDTH * 0.27333));
valueText.setFill(gauge.getValueColor());
Helper.enableNode(valueText, gauge.isValueVisible());
unitText = new Text(gauge.getUnit());
unitText.setFont(Fonts.robotoLight(PREFERRED_WIDTH * 0.08));
unitText.setFill(gauge.getUnitColor());
Helper.enableNode(unitText, !gauge.getUnit().isEmpty());
pane = new Pane(colorRing, bar, separator, titleText, valueText, unitText);
pane.setBackground(new Background(new BackgroundFill(gauge.getBackgroundPaint(), new CornerRadii(1024), Insets.EMPTY)));
pane.setBorder(new Border(new BorderStroke(gauge.getBorderPaint(), BorderStrokeStyle.SOLID, new CornerRadii(1024), new BorderWidths(gauge.getBorderWidth()))));
getChildren().setAll(pane);
}
@Override protected void registerListeners() {
super.registerListeners();
gauge.currentValueProperty().addListener(currentValueListener);
}
// ******************** Methods *******************************************
@Override protected void handleEvents(final String EVENT_TYPE) {
super.handleEvents(EVENT_TYPE);
if ("RECALC".equals(EVENT_TYPE)) {
minValue = gauge.getMinValue();
range = gauge.getRange();
angleStep = ANGLE_RANGE / range;
sections = gauge.getSections();
redraw();
setBar(gauge.getCurrentValue());
} else if ("VISIBILITY".equals(EVENT_TYPE)) {
Helper.enableNode(titleText, !gauge.getTitle().isEmpty());
Helper.enableNode(unitText, !gauge.getUnit().isEmpty());
Helper.enableNode(valueText, gauge.isValueVisible());
}
}
private void setBar( final double VALUE ) {
double barLength = 0;
double min = gauge.getMinValue();
double max = gauge.getMaxValue();
double clampedValue = Helper.clamp(min, max, VALUE);
if ( gauge.isStartFromZero() ) {
if ( ( VALUE > min || min < 0 ) && ( VALUE < max || max > 0 ) ) {
if ( max < 0 ) {
barLength = ( max - clampedValue ) * angleStep;
} else if ( min > 0 ) {
barLength = ( min - clampedValue ) * angleStep;
} else {
barLength = - clampedValue * angleStep;
}
}
} else {
barLength = ( min - clampedValue ) * angleStep;
}
bar.setLength(barLength);
setBarColor(VALUE);
valueText.setText(formatNumber(gauge.getLocale(), gauge.getFormatString(), gauge.getDecimals(), VALUE));
resizeValueText();
}
private void setBarColor( final double VALUE ) {
if (!sectionsVisible && !colorGradientEnabled) {
bar.setStroke(gauge.getBarColor());
colorRing.setStroke(gauge.getBarColor());
} else if (colorGradientEnabled && noOfGradientStops > 1) {
Color dynamicColor = gauge.getGradientLookup().getColorAt((VALUE - minValue) / range);
bar.setStroke(dynamicColor);
colorRing.setStroke(dynamicColor);
} else {
bar.setStroke(gauge.getBarColor());
colorRing.setStroke(gauge.getBarColor());
for (Section section : sections) {
if (section.contains(VALUE)) {
bar.setStroke(section.getColor());
colorRing.setStroke(section.getColor());
break;
}
}
}
}
@Override public void dispose() {
gauge.currentValueProperty().removeListener(currentValueListener);
super.dispose();
}
// ******************** 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);
}
@Override protected void resize() {
double width = gauge.getWidth() - gauge.getInsets().getLeft() - gauge.getInsets().getRight();
double height = gauge.getHeight() - gauge.getInsets().getTop() - gauge.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();
}
}
@Override protected void redraw() {
colorGradientEnabled = gauge.isGradientBarEnabled();
noOfGradientStops = gauge.getGradientBarStops().size();
sectionsVisible = gauge.getSectionsVisible();
pane.setBackground(new Background(new BackgroundFill(gauge.getBackgroundPaint(), new CornerRadii(1024), Insets.EMPTY)));
pane.setBorder(new Border(new BorderStroke(gauge.getBorderPaint(), BorderStrokeStyle.SOLID, new CornerRadii(1024), new BorderWidths(gauge.getBorderWidth() / PREFERRED_WIDTH * size))));
setBarColor(gauge.getCurrentValue());
valueText.setFill(gauge.getValueColor());
unitText.setFill(gauge.getUnitColor());
titleText.setFill(gauge.getTitleColor());
separator.setStroke(gauge.getBorderPaint());
titleText.setText(gauge.getTitle());
resizeTitleText();
unitText.setText(gauge.getUnit());
resizeUnitText();
}
}