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

   1 /*
   2  * Sixth 3D engine. Copyright ©2012-2020, 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     private static final int MAX_FONT_SIZE = 500;
  23     private static final Font[] fonts = new Font[MAX_FONT_SIZE];
  24     private String value;
  25
  26     private eu.svjatoslav.sixth.e3d.renderer.raster.Color foregroundColor;
  27     private Color foregroundAwtColor;
  28
  29     private eu.svjatoslav.sixth.e3d.renderer.raster.Color backgroundColor;
  30
  31     public CanvasCharacter(final Point3D point, final char character,
  32                            final eu.svjatoslav.sixth.e3d.renderer.raster.Color foregroundColor,
  33                            final eu.svjatoslav.sixth.e3d.renderer.raster.Color backgroundColor) {
  34
  35         super(5);
  36         coordinates[0].coordinate = point;
  37
  38         value = String.valueOf(character);
  39
  40         this.foregroundColor = foregroundColor;
  41         foregroundAwtColor = foregroundColor.toAwtColor();
  42
  43         this.backgroundColor = backgroundColor;
  44
  45         // set corner coordinates (for drawing background)
  46         {
  47             final double widthHalf = TextCanvas.FONT_CHAR_WIDTH_PIXELS / 2d;
  48             final double heightHalf = TextCanvas.FONT_CHAR_HEIGHT_PIXELS / 2d;
  49
  50             // upper left
  51             coordinates[1].coordinate = point.clone().translateX(-widthHalf)
  52                     .translateY(-heightHalf);
  53
  54             // upper right
  55             coordinates[2].coordinate = point.clone().translateX(widthHalf)
  56                     .translateY(-heightHalf);
  57
  58             // lower right
  59             coordinates[3].coordinate = point.clone().translateX(widthHalf)
  60                     .translateY(heightHalf);
  61
  62             // lower left
  63             coordinates[4].coordinate = point.clone().translateX(-widthHalf)
  64                     .translateY(heightHalf);
  65
  66         }
  67     }
  68
  69     public static Font getFont(final int size) {
  70         if (fonts[size] != null)
  71             return fonts[size];
  72
  73         final Font font = new Font("Courier", Font.BOLD, size);
  74         fonts[size] = font;
  75         return font;
  76     }
  77
  78     public eu.svjatoslav.sixth.e3d.renderer.raster.Color getBackgroundColor() {
  79         return backgroundColor;
  80     }
  81
  82     public void setBackgroundColor(
  83             final eu.svjatoslav.sixth.e3d.renderer.raster.Color backgroundColor) {
  84         this.backgroundColor = backgroundColor;
  85     }
  86
  87     public eu.svjatoslav.sixth.e3d.renderer.raster.Color getForegroundColor() {
  88         return foregroundColor;
  89     }
  90
  91     public void setForegroundColor(
  92             final eu.svjatoslav.sixth.e3d.renderer.raster.Color foregroundColor) {
  93         this.foregroundColor = foregroundColor;
  94         foregroundAwtColor = foregroundColor.toAwtColor();
  95     }
  96
  97     @Override
  98     public void paint(final RenderingContext renderingContext) {
  99
 100         SolidPolygon.drawPolygon(renderingContext,
 101                 coordinates[1].onScreenCoordinate,
 102                 coordinates[2].onScreenCoordinate,
 103                 coordinates[3].onScreenCoordinate, mouseInteractionController,
 104                 backgroundColor);
 105
 106         SolidPolygon.drawPolygon(renderingContext,
 107                 coordinates[1].onScreenCoordinate,
 108                 coordinates[3].onScreenCoordinate,
 109                 coordinates[4].onScreenCoordinate, mouseInteractionController,
 110                 backgroundColor);
 111
 112         final int size = (int) ((renderingContext.width * 4.5) / onScreenZ);
 113
 114         // do not render too large characters
 115         if (size >= MAX_FONT_SIZE)
 116             return;
 117
 118         final Point2D onScreenLocation = coordinates[0].onScreenCoordinate;
 119
 120         // screen borders check
 121         if (onScreenLocation.x < 0)
 122             return;
 123         if (onScreenLocation.y < 0)
 124             return;
 125
 126         if (onScreenLocation.x > renderingContext.width)
 127             return;
 128         if (onScreenLocation.y > renderingContext.height)
 129             return;
 130
 131         renderingContext.graphics.setFont(getFont(size));
 132         renderingContext.graphics.setColor(foregroundAwtColor);
 133         renderingContext.graphics.drawString(
 134                 value,
 135                 (int) onScreenLocation.x - (int) (size / 3.2),
 136                 (int) onScreenLocation.y + (int) (size / 2.5));
 137
 138     }
 139
 140     public void setValue(final char value) {
 141         this.value = String.valueOf(value);
 142     }
 143
 144 }