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

   1 /*
   2  * Sixth 3D engine. Author: Svjatoslav Agejenko.
   3  * This project is released under Creative Commons Zero (CC0) license.
   4  */
   5 package eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.textcanvas;
   6
   7 import eu.svjatoslav.sixth.e3d.geometry.Point2D;
   8 import eu.svjatoslav.sixth.e3d.geometry.Point3D;
   9 import eu.svjatoslav.sixth.e3d.gui.RenderingContext;
  10 import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.AbstractCoordinateShape;
  11 import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.basic.solidpolygon.SolidPolygon;
  12
  13 import java.awt.*;
  14
  15 public class CanvasCharacter extends AbstractCoordinateShape {
  16
  17     private static final int MAX_FONT_SIZE = 500;
  18     private static final Font[] fonts = new Font[MAX_FONT_SIZE];
  19     private String value;
  20
  21     private eu.svjatoslav.sixth.e3d.renderer.raster.Color foregroundColor;
  22     private Color foregroundAwtColor;
  23
  24     private eu.svjatoslav.sixth.e3d.renderer.raster.Color backgroundColor;
  25
  26     public CanvasCharacter(final Point3D point, final char character,
  27                            final eu.svjatoslav.sixth.e3d.renderer.raster.Color foregroundColor,
  28                            final eu.svjatoslav.sixth.e3d.renderer.raster.Color backgroundColor) {
  29
  30         super(5);
  31         coordinates[0].coordinate = point;
  32
  33         value = String.valueOf(character);
  34
  35         this.foregroundColor = foregroundColor;
  36         foregroundAwtColor = foregroundColor.toAwtColor();
  37
  38         this.backgroundColor = backgroundColor;
  39
  40         // set corner coordinates (for drawing background)
  41         {
  42             final double widthHalf = TextCanvas.FONT_CHAR_WIDTH / 2d;
  43             final double heightHalf = TextCanvas.FONT_CHAR_HEIGHT / 2d;
  44
  45             // upper left
  46             coordinates[1].coordinate = point.clone().translateX(-widthHalf)
  47                     .translateY(-heightHalf);
  48
  49             // upper right
  50             coordinates[2].coordinate = point.clone().translateX(widthHalf)
  51                     .translateY(-heightHalf);
  52
  53             // lower right
  54             coordinates[3].coordinate = point.clone().translateX(widthHalf)
  55                     .translateY(heightHalf);
  56
  57             // lower left
  58             coordinates[4].coordinate = point.clone().translateX(-widthHalf)
  59                     .translateY(heightHalf);
  60
  61         }
  62     }
  63
  64     public static Font getFont(final int size) {
  65         if (fonts[size] != null)
  66             return fonts[size];
  67
  68         final Font font = new Font("Courier", Font.BOLD, size);
  69         fonts[size] = font;
  70         return font;
  71     }
  72
  73     public eu.svjatoslav.sixth.e3d.renderer.raster.Color getBackgroundColor() {
  74         return backgroundColor;
  75     }
  76
  77     public void setBackgroundColor(
  78             final eu.svjatoslav.sixth.e3d.renderer.raster.Color backgroundColor) {
  79         this.backgroundColor = backgroundColor;
  80     }
  81
  82     public eu.svjatoslav.sixth.e3d.renderer.raster.Color getForegroundColor() {
  83         return foregroundColor;
  84     }
  85
  86     public void setForegroundColor(
  87             final eu.svjatoslav.sixth.e3d.renderer.raster.Color foregroundColor) {
  88         this.foregroundColor = foregroundColor;
  89         foregroundAwtColor = foregroundColor.toAwtColor();
  90     }
  91
  92     @Override
  93     public void paint(final RenderingContext renderingContext) {
  94
  95         SolidPolygon.drawPolygon(renderingContext,
  96                 coordinates[1].onScreenCoordinate,
  97                 coordinates[2].onScreenCoordinate,
  98                 coordinates[3].onScreenCoordinate, mouseInteractionController,
  99                 backgroundColor);
 100
 101         SolidPolygon.drawPolygon(renderingContext,
 102                 coordinates[1].onScreenCoordinate,
 103                 coordinates[3].onScreenCoordinate,
 104                 coordinates[4].onScreenCoordinate, mouseInteractionController,
 105                 backgroundColor);
 106
 107         final int size = (int) ((renderingContext.width * 4.5) / onScreenZ);
 108
 109         // do not render too large characters
 110         if (size >= MAX_FONT_SIZE)
 111             return;
 112
 113         final Point2D onScreenLocation = coordinates[0].onScreenCoordinate;
 114
 115         // screen borders check
 116         if (onScreenLocation.x < 0)
 117             return;
 118         if (onScreenLocation.y < 0)
 119             return;
 120
 121         if (onScreenLocation.x > renderingContext.width)
 122             return;
 123         if (onScreenLocation.y > renderingContext.height)
 124             return;
 125
 126         renderingContext.graphics.setFont(getFont(size));
 127         renderingContext.graphics.setColor(foregroundAwtColor);
 128         renderingContext.graphics.drawString(
 129                 value,
 130                 (int) onScreenLocation.x - (int) (size / 3.2),
 131                 (int) onScreenLocation.y + (int) (size / 2.5));
 132
 133     }
 134
 135     public void setValue(final char value) {
 136         this.value = String.valueOf(value);
 137     }
 138
 139 }