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