src/main/java/eu/svjatoslav/sixth/e3d/gui/GuiComponent.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.gui;
   6
   7 import eu.svjatoslav.sixth.e3d.geometry.Box;
   8 import eu.svjatoslav.sixth.e3d.geometry.Point3D;
   9 import eu.svjatoslav.sixth.e3d.gui.humaninput.KeyboardHelper;
  10 import eu.svjatoslav.sixth.e3d.gui.humaninput.KeyboardInputHandler;
  11 import eu.svjatoslav.sixth.e3d.gui.humaninput.MouseInteractionController;
  12 import eu.svjatoslav.sixth.e3d.math.Transform;
  13 import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.basic.line.LineAppearance;
  14 import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.base.AbstractCompositeShape;
  15 import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.wireframe.WireframeBox;
  16
  17 import java.awt.event.KeyEvent;
  18
  19 public class GuiComponent extends AbstractCompositeShape implements
  20         KeyboardInputHandler, MouseInteractionController {
  21
  22     private static final String GROUP_GUI_FOCUS = "gui.focus";
  23     public final ViewPanel viewPanel;
  24     Box containingBox = new Box();
  25     private WireframeBox borders = null;
  26
  27     private boolean borderShown = false;
  28
  29     public GuiComponent(final Transform transform,
  30                         final ViewPanel viewPanel, final Point3D size) {
  31         super(transform);
  32         this.viewPanel = viewPanel;
  33         setDimensions(size);
  34     }
  35
  36     private WireframeBox createBorder() {
  37         final LineAppearance appearance = new LineAppearance(10,
  38                 new eu.svjatoslav.sixth.e3d.renderer.raster.Color(255, 0, 0, 100));
  39
  40         final double borderSize = 10;
  41
  42         final Box borderArea = containingBox.clone().enlarge(borderSize);
  43
  44         return new WireframeBox(borderArea, appearance);
  45     }
  46
  47     @Override
  48     public boolean focusLost(final ViewPanel viewPanel) {
  49         hideBorder();
  50         return true;
  51     }
  52
  53     @Override
  54     public boolean focusReceived(final ViewPanel viewPanel) {
  55         showBorder();
  56         return true;
  57     }
  58
  59     public WireframeBox getBorders() {
  60         if (borders == null)
  61             borders = createBorder();
  62         return borders;
  63     }
  64
  65     public int getDepth() {
  66         return (int) containingBox.getDepth();
  67     }
  68
  69     public int getHeight() {
  70         return (int) containingBox.getHeight();
  71     }
  72
  73     public int getWidth() {
  74         return (int) containingBox.getWidth();
  75     }
  76
  77     public void hideBorder() {
  78         if (!borderShown)
  79             return;
  80         borderShown = false;
  81         removeGroup(GROUP_GUI_FOCUS);
  82     }
  83
  84     @Override
  85     public boolean keyPressed(final KeyEvent event, final ViewPanel viewPanel) {
  86         if (event.getKeyChar() == KeyboardHelper.ESC)
  87             viewPanel.getKeyboardFocusStack().popFocusOwner();
  88         return true;
  89     }
  90
  91     @Override
  92     public boolean keyReleased(final KeyEvent event, final ViewPanel viewPanel) {
  93         return false;
  94     }
  95
  96     @Override
  97     public boolean mouseClicked(int button) {
  98         return viewPanel.getKeyboardFocusStack().pushFocusOwner(this);
  99     }
 100
 101     @Override
 102     public boolean mouseEntered() {
 103         return false;
 104     }
 105
 106     @Override
 107     public boolean mouseExited() {
 108         return false;
 109     }
 110
 111     private void setDimensions(final Point3D size) {
 112         containingBox.setBoxSize(size);
 113     }
 114
 115     private void showBorder() {
 116         if (borderShown)
 117             return;
 118         borderShown = true;
 119         addShape(getBorders(), GROUP_GUI_FOCUS);
 120     }
 121
 122 }