src/main/java/eu/svjatoslav/sixth/e3d/gui/GuiComponent.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.geometry.Box;
  13 import eu.svjatoslav.sixth.e3d.geometry.Point3D;
  14 import eu.svjatoslav.sixth.e3d.geometry.Transform;
  15 import eu.svjatoslav.sixth.e3d.gui.humaninput.MouseInteractionController;
  16 import eu.svjatoslav.sixth.e3d.gui.humaninput.UserInputHandler;
  17 import eu.svjatoslav.sixth.e3d.gui.textEditorComponent.KeyboardHelper;
  18 import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.basic.line.LineAppearance;
  19 import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.base.AbstractCompositeShape;
  20 import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.wireframe.WireframeBox;
  21
  22 import java.awt.event.KeyEvent;
  23
  24 public class GuiComponent extends AbstractCompositeShape implements
  25         UserInputHandler, MouseInteractionController {
  26
  27     private static final String GROUP_GUI_FOCUS = "gui.focus";
  28     public final ViewContext viewContext;
  29     Box containingBox = new Box();
  30     private WireframeBox borders = null;
  31
  32     private boolean borderShown = false;
  33
  34     public GuiComponent(final Transform transform,
  35                         final ViewContext viewContext, final Point3D size) {
  36         super(transform);
  37         this.viewContext = viewContext;
  38         setDimensions(size);
  39     }
  40
  41     @Override
  42     public boolean beforeViewUpdate(final ViewContext viewContext,
  43                                     final int millisecondsSinceLastFrame) {
  44         return false;
  45     }
  46
  47     private WireframeBox createBorder() {
  48         final LineAppearance appearance = new LineAppearance(10,
  49                 new eu.svjatoslav.sixth.e3d.renderer.raster.Color(255, 0, 0, 100));
  50
  51         final double borderSize = 10;
  52
  53         final Box borderArea = containingBox.clone().addBorder(borderSize);
  54
  55         return new WireframeBox(borderArea, appearance);
  56     }
  57
  58     @Override
  59     public void focusLost(final ViewContext viewContext) {
  60         hideBorder();
  61     }
  62
  63     @Override
  64     public void focusReceived(final ViewContext viewContext) {
  65         showBorder();
  66     }
  67
  68     public WireframeBox getBorders() {
  69         if (borders == null)
  70             borders = createBorder();
  71         return borders;
  72     }
  73
  74     public int getDepth() {
  75         return (int) containingBox.getDepth();
  76     }
  77
  78     public int getHeight() {
  79         return (int) containingBox.getHeight();
  80     }
  81
  82     public int getWidth() {
  83         return (int) containingBox.getWidth();
  84     }
  85
  86     public void hideBorder() {
  87         if (!borderShown)
  88             return;
  89         borderShown = false;
  90         removeGroup(GROUP_GUI_FOCUS);
  91     }
  92
  93     @Override
  94     public void keyPressed(final KeyEvent event, final ViewContext viewContext) {
  95         if (event.getKeyChar() == KeyboardHelper.ESC)
  96             viewContext.getKeyboardFocusTracker().popFocusOwner();
  97     }
  98
  99     @Override
 100     public void keyReleased(final KeyEvent event, final ViewContext viewContext) {
 101     }
 102
 103     @Override
 104     public void mouseClicked() {
 105         viewContext.getKeyboardFocusTracker().setFocusOwner(this);
 106     }
 107
 108     @Override
 109     public void mouseEntered() {
 110     }
 111
 112     @Override
 113     public void mouseExited() {
 114     }
 115
 116     private void setDimensions(final Point3D size) {
 117         containingBox.setSizeCentered(size);
 118     }
 119
 120     public void showBorder() {
 121         if (borderShown)
 122             return;
 123         borderShown = true;
 124         addShape(getBorders(), GROUP_GUI_FOCUS);
 125     }
 126
 127 }