LogicUI/src/era/mi/gui/LogicUICanvas.java

   1 package era.mi.gui;
   2
   3 import org.eclipse.swt.SWT;
   4 import org.eclipse.swt.widgets.Composite;
   5 import org.eclipse.swt.widgets.Event;
   6
   7 import era.mi.gui.model.ViewModel;
   8 import era.mi.gui.model.components.GUIComponent;
   9 import era.mi.gui.model.wires.Pin;
  10 import net.haspamelodica.swt.helper.gcs.GeneralGC;
  11 import net.haspamelodica.swt.helper.swtobjectwrappers.Point;
  12 import net.haspamelodica.swt.helper.swtobjectwrappers.Rectangle;
  13 import net.haspamelodica.swt.helper.zoomablecanvas.ZoomableCanvas;
  14
  15 /**
  16  * Simulation visualizer canvas.
  17  *
  18  * @author Daniel Kirschten
  19  */
  20 public class LogicUICanvas extends ZoomableCanvas
  21 {
  22         private final ViewModel model;
  23
  24         public LogicUICanvas(Composite parent, int style, ViewModel model)
  25         {
  26                 super(parent, style);
  27
  28                 this.model = model;
  29
  30                 model.addComponentAddedListener(c -> redrawThreadsafe());
  31                 model.addWireAddedListener(c -> redrawThreadsafe());
  32                 model.addComponentRemovedListener(c -> redrawThreadsafe());
  33                 model.addWireRemovedListener(c -> redrawThreadsafe());
  34
  35                 addZoomedRenderer(gc ->
  36                 {
  37                         Rectangle visibleRegion = new Rectangle(offX, offY, gW / zoom, gH / zoom);
  38                         model.getComponents().forEach(c -> drawComponent(gc, c, visibleRegion));
  39                 });
  40                 addZoomedRenderer(gc -> model.getWires().forEach(w -> w.render(gc)));
  41                 addListener(SWT.MouseDown, this::mouseDown);
  42         }
  43
  44         private void drawComponent(GeneralGC gc, GUIComponent component, Rectangle visibleRegion)
  45         {
  46                 component.render(gc, visibleRegion);
  47                 gc.setBackground(getDisplay().getSystemColor(SWT.COLOR_CYAN));
  48                 for (Pin p : component.getPins())
  49                 {
  50                         Point pos = p.getPos();
  51                         gc.fillOval(pos.x - 1, pos.y - 1, 2, 2);
  52                 }
  53         }
  54
  55         private void mouseDown(Event e)
  56         {
  57                 if (e.button == 1)
  58                 {
  59                         Point click = displayToWorldCoords(e.x, e.y);
  60                         for (GUIComponent component : model.getComponents())
  61                                 if (component.getBounds().contains(click) && component.clicked(click.x, click.y))
  62                                 {
  63                                         redraw();
  64                                         break;
  65                                 }
  66                 }
  67         }
  68 }