src/main/java/eu/svjatoslav/sixth/e3d/renderer/raster/shapes/composite/textcanvas/CanvasCharacter.java

   1 /*
   2  * Sixth 3D engine. Copyright ©2012-2019, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of version 3 of the GNU Lesser General Public License
   6  * or later as published by the Free Software Foundation.
   7  *
   8  */
   9
  10 package eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.textcanvas;
  11
  12 import eu.svjatoslav.sixth.e3d.geometry.Point2D;
  13 import eu.svjatoslav.sixth.e3d.geometry.Point3D;
  14 import eu.svjatoslav.sixth.e3d.gui.RenderingContext;
  15 import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.AbstractCoordinateShape;
  16 import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.basic.solidpolygon.SolidPolygon;
  17
  18 import java.awt.*;
  19
  20 public class CanvasCharacter extends AbstractCoordinateShape {
  21
  22     public static final double SIZE_MULTIPLIER = 0.005;
  23     private static final int MAX_FONT_SIZE = 500;
  24     private static final Font[] fonts = new Font[MAX_FONT_SIZE];
  25     private String value;
  26
  27     private eu.svjatoslav.sixth.e3d.renderer.raster.Color foregroundColor;
  28     private Color foregroundAwtColor;
  29
  30     private eu.svjatoslav.sixth.e3d.renderer.raster.Color backgroundColor;
  31
  32     public CanvasCharacter(final Point3D point, final char character,
  33                            final eu.svjatoslav.sixth.e3d.renderer.raster.Color foregroundColor,
  34                            final eu.svjatoslav.sixth.e3d.renderer.raster.Color backgroundColor) {
  35
  36         super(5);
  37         coordinates[0].coordinate = point;
  38
  39         value = String.valueOf(character);
  40
  41         this.foregroundColor = foregroundColor;
  42         foregroundAwtColor = foregroundColor.toAwtColor();
  43
  44         this.backgroundColor = backgroundColor;
  45
  46         // set corner coordinates (for drawing background)
  47         {
  48             final double widthHalf = TextCanvas.FONT_CHAR_WIDTH / 2d;
  49             final double heightHalf = TextCanvas.FONT_CHAR_HEIGHT / 2d;
  50
  51             // upper left
  52             coordinates[1].coordinate = point.clone().translateX(-widthHalf)
  53                     .translateY(-heightHalf);
  54
  55             // upper right
  56             coordinates[2].coordinate = point.clone().translateX(widthHalf)
  57                     .translateY(-heightHalf);
  58
  59             // lower right
  60             coordinates[3].coordinate = point.clone().translateX(widthHalf)
  61                     .translateY(heightHalf);
  62
  63             // lower left
  64             coordinates[4].coordinate = point.clone().translateX(-widthHalf)
  65                     .translateY(heightHalf);
  66
  67         }
  68     }
  69
  70     public static Font getFont(final int size) {
  71         if (fonts[size] != null)
  72             return fonts[size];
  73
  74         final Font font = new Font("Courier", Font.BOLD, size);
  75         fonts[size] = font;
  76         return font;
  77     }
  78
  79     public eu.svjatoslav.sixth.e3d.renderer.raster.Color getBackgroundColor() {
  80         return backgroundColor;
  81     }
  82
  83     public void setBackgroundColor(
  84             final eu.svjatoslav.sixth.e3d.renderer.raster.Color backgroundColor) {
  85         this.backgroundColor = backgroundColor;
  86     }
  87
  88     public eu.svjatoslav.sixth.e3d.renderer.raster.Color getForegroundColor() {
  89         return foregroundColor;
  90     }
  91
  92     public void setForegroundColor(
  93             final eu.svjatoslav.sixth.e3d.renderer.raster.Color foregroundColor) {
  94         this.foregroundColor = foregroundColor;
  95         foregroundAwtColor = foregroundColor.toAwtColor();
  96     }
  97
  98     @Override
  99     public void paint(final RenderingContext renderingContext) {
 100
 101         SolidPolygon.drawPolygon(renderingContext,
 102                 coordinates[1].onScreenCoordinate,
 103                 coordinates[2].onScreenCoordinate,
 104                 coordinates[3].onScreenCoordinate, mouseInteractionController,
 105                 backgroundColor);
 106
 107         SolidPolygon.drawPolygon(renderingContext,
 108                 coordinates[1].onScreenCoordinate,
 109                 coordinates[3].onScreenCoordinate,
 110                 coordinates[4].onScreenCoordinate, mouseInteractionController,
 111                 backgroundColor);
 112
 113         final int size = (int) ((renderingContext.width * 4.5) / onScreenZ);
 114
 115         // do not render too large characters
 116         if (size >= MAX_FONT_SIZE)
 117             return;
 118
 119         final Point2D onScreenLocation = coordinates[0].onScreenCoordinate;
 120
 121         // screen borders check
 122         if (onScreenLocation.x < 0)
 123             return;
 124         if (onScreenLocation.y < 0)
 125             return;
 126
 127         if (onScreenLocation.x > renderingContext.width)
 128             return;
 129         if (onScreenLocation.y > renderingContext.height)
 130             return;
 131
 132         renderingContext.graphics.setFont(getFont(size));
 133         renderingContext.graphics.setColor(foregroundAwtColor);
 134         renderingContext.graphics.drawString(value, (int) onScreenLocation.x
 135                 - (int) (size / 3.2), (int) onScreenLocation.y
 136                 + (int) (size / 2.5));
 137
 138     }
 139
 140     public void setValue(final char value) {
 141         this.value = String.valueOf(value);
 142     }
 143
 144 }