net.mograsim.logic.ui/src/net/mograsim/logic/ui/LogicUICanvas.java

   1 package net.mograsim.logic.ui;
   2
   3 import org.eclipse.swt.SWT;
   4 import org.eclipse.swt.widgets.Composite;
   5 import org.eclipse.swt.widgets.Event;
   6
   7 import net.haspamelodica.swt.helper.swtobjectwrappers.Point;
   8 import net.haspamelodica.swt.helper.swtobjectwrappers.Rectangle;
   9 import net.haspamelodica.swt.helper.zoomablecanvas.ZoomableCanvas;
  10 import net.mograsim.logic.ui.model.ViewModel;
  11 import net.mograsim.logic.ui.model.components.GUIComponent;
  12
  13 /**
  14  * Simulation visualizer canvas.
  15  *
  16  * @author Daniel Kirschten
  17  */
  18 public class LogicUICanvas extends ZoomableCanvas
  19 {
  20         private final ViewModel model;
  21
  22         public LogicUICanvas(Composite parent, int style, ViewModel model)
  23         {
  24                 super(parent, style);
  25
  26                 this.model = model;
  27
  28                 LogicUIRenderer renderer = new LogicUIRenderer(model);
  29                 addZoomedRenderer(gc -> renderer.render(gc, new Rectangle(-offX / zoom, -offY / zoom, gW / zoom, gH / zoom)));
  30                 model.addRedrawListener(this::redrawThreadsafe);
  31
  32                 addListener(SWT.MouseDown, this::mouseDown);
  33         }
  34
  35         private void mouseDown(Event e)
  36         {
  37                 if (e.button == 1)
  38                 {
  39                         Point click = displayToWorldCoords(e.x, e.y);
  40                         for (GUIComponent component : model.getComponents())
  41                                 if (component.getBounds().contains(click) && component.clicked(click.x, click.y))
  42                                 {
  43                                         redraw();
  44                                         break;
  45                                 }
  46                 }
  47         }
  48 }