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   1 /**
   2  * Copyright (c) 2010-2023 Contributors to the openHAB project
   3  *
   4  * See the NOTICE file(s) distributed with this work for additional
   5  * information.
   6  *
   7  * This program and the accompanying materials are made available under the
   8  * terms of the Eclipse Public License 2.0 which is available at
   9  * http://www.eclipse.org/legal/epl-2.0
  10  *
  11  * SPDX-License-Identifier: EPL-2.0
  12  */
  13 package org.openhab.binding.nanoleaf.internal.layout.shape;
  14
  15 import java.awt.BasicStroke;
  16 import java.awt.Color;
  17 import java.awt.Graphics2D;
  18 import java.awt.Polygon;
  19 import java.awt.Stroke;
  20 import java.util.ArrayList;
  21 import java.util.Collections;
  22 import java.util.List;
  23
  24 import org.eclipse.jdt.annotation.NonNullByDefault;
  25 import org.openhab.binding.nanoleaf.internal.layout.DrawingSettings;
  26 import org.openhab.binding.nanoleaf.internal.layout.ImagePoint2D;
  27 import org.openhab.binding.nanoleaf.internal.layout.PanelState;
  28 import org.openhab.binding.nanoleaf.internal.layout.Point2D;
  29 import org.openhab.binding.nanoleaf.internal.layout.ShapeType;
  30 import org.openhab.binding.nanoleaf.internal.model.PositionDatum;
  31 import org.openhab.core.library.types.HSBType;
  32
  33 /**
  34  * A single line.
  35  *
  36  * @author Jørgen Austvik - Initial contribution
  37  */
  38 @NonNullByDefault
  39 public class SingleLine extends Panel {
  40
  41     private static final int CORNER_DIAMETER = 4;
  42     private static final int LINE_WIDTH = 6;
  43
  44     private final List<PositionDatum> corners;
  45
  46     public SingleLine(ShapeType shapeType, List<PositionDatum> corners) {
  47         super(shapeType);
  48
  49         this.corners = Collections.unmodifiableList(new ArrayList<>(corners));
  50     }
  51
  52     @Override
  53     public List<Point2D> generateOutline() {
  54         List<Point2D> result = new ArrayList<>(corners.size());
  55         for (PositionDatum corner : corners) {
  56             result.add(new Point2D(corner.getPosX(), corner.getPosY()));
  57         }
  58
  59         return result;
  60     }
  61
  62     @Override
  63     public void draw(Graphics2D graphics, DrawingSettings settings, PanelState state) {
  64         List<ImagePoint2D> outline = settings.generateImagePoints(generateOutline());
  65         Polygon p = new Polygon();
  66         for (int i = 0; i < outline.size(); i++) {
  67             ImagePoint2D pos = outline.get(i);
  68             p.addPoint(pos.getX(), pos.getY());
  69         }
  70
  71         if (settings.shouldFillWithColor()) {
  72             Color corner1Color = getColor(corners.get(0).getPanelId(), state);
  73             Color corner2Color = getColor(corners.get(0).getPanelId(), state);
  74
  75             ImagePoint2D center = findCenter(outline);
  76
  77             Stroke oldStroke = graphics.getStroke();
  78             Stroke lineStroke = new BasicStroke(LINE_WIDTH, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
  79             graphics.setStroke(lineStroke);
  80             graphics.setColor(corner1Color);
  81             graphics.drawLine(outline.get(0).getX(), outline.get(0).getY(), center.getX(), center.getY());
  82             graphics.setColor(corner2Color);
  83             graphics.drawLine(outline.get(1).getX(), outline.get(1).getY(), center.getX(), center.getY());
  84             graphics.setStroke(oldStroke);
  85         }
  86
  87         if (settings.shouldDrawOutline()) {
  88             graphics.setColor(settings.getOutlineColor());
  89             graphics.drawPolygon(p);
  90         }
  91
  92         if (settings.shouldDrawCorners()) {
  93             for (PositionDatum corner : corners) {
  94                 ImagePoint2D position = settings.generateImagePoint(new Point2D(corner.getPosX(), corner.getPosY()));
  95                 graphics.setColor(getColor(corner.getPanelId(), state));
  96                 graphics.fillOval(position.getX() - CORNER_DIAMETER / 2, position.getY() - CORNER_DIAMETER / 2,
  97                         CORNER_DIAMETER, CORNER_DIAMETER);
  98
  99                 if (settings.shouldDrawOutline()) {
 100                     graphics.setColor(settings.getOutlineColor());
 101                     graphics.drawOval(position.getX() - CORNER_DIAMETER / 2, position.getY() - CORNER_DIAMETER / 2,
 102                             CORNER_DIAMETER, CORNER_DIAMETER);
 103                 }
 104             }
 105         }
 106
 107         if (settings.shouldDrawLabels()) {
 108             graphics.setColor(settings.getLabelColor());
 109
 110             for (PositionDatum corner : corners) {
 111                 ImagePoint2D position = settings.generateImagePoint(new Point2D(corner.getPosX(), corner.getPosY()));
 112                 graphics.drawString(Integer.toString(corner.getPanelId()), position.getX(), position.getY());
 113             }
 114         }
 115     }
 116
 117     private ImagePoint2D findCenter(List<ImagePoint2D> outline) {
 118         Point2D[] bounds = findBounds(outline);
 119         int midX = bounds[0].getX() + (bounds[1].getX() - bounds[0].getX()) / 2;
 120         int midY = bounds[0].getY() + (bounds[1].getY() - bounds[0].getY()) / 2;
 121         return new ImagePoint2D(midX, midY);
 122     }
 123
 124     private static Color getColor(int panelId, PanelState state) {
 125         HSBType color = state.getHSBForPanel(panelId);
 126         return new Color(color.getRGB());
 127     }
 128 }