src/main/java/eu/svjatoslav/sixth/e3d/gui/RenderingContext.java

   1 /*
   2  * Sixth 3D engine. Copyright ©2012-2018, 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.gui;
  11
  12 import eu.svjatoslav.sixth.e3d.gui.humaninput.MouseEvent;
  13 import eu.svjatoslav.sixth.e3d.gui.humaninput.MouseInteractionController;
  14
  15 import java.awt.*;
  16 import java.awt.image.BufferedImage;
  17 import java.awt.image.DataBufferByte;
  18 import java.awt.image.WritableRaster;
  19
  20 public class RenderingContext {
  21
  22     public static final int bufferedImageType = BufferedImage.TYPE_4BYTE_ABGR;
  23     public final Graphics2D graphics;
  24     public final byte[] pixels;
  25     public final int width;
  26     public final int height;
  27     public final int xCenter;
  28     public final int yCenter;
  29     public final double zoom;
  30     final BufferedImage bufferedImage;
  31     public int frameNumber = 0;
  32
  33     /**
  34      * Mouse click. During rendering we can detect which item user clicked on.
  35      */
  36     public MouseEvent mouseEvent;
  37
  38     /**
  39      * Item that user clicked on.
  40      */
  41     public MouseInteractionController objectUnderMouse;
  42
  43     public RenderingContext(final int width, final int height) {
  44         this.width = width;
  45         this.height = height;
  46
  47         this.xCenter = width / 2;
  48         this.yCenter = height / 2;
  49
  50         this.zoom = width / 3d;
  51
  52         bufferedImage = new BufferedImage(width, height, bufferedImageType);
  53
  54         final WritableRaster raster = bufferedImage.getRaster();
  55         final DataBufferByte dbi = (DataBufferByte) raster.getDataBuffer();
  56         pixels = dbi.getData();
  57
  58         graphics = (Graphics2D) bufferedImage.getGraphics();
  59         graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
  60         graphics.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
  61     }
  62
  63 }