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

   1 package era.mi.gui;\r
   2 \r
   3 import java.util.function.Consumer;\r
   4 \r
   5 import org.eclipse.swt.SWT;\r
   6 import org.eclipse.swt.widgets.Composite;\r
   7 import org.eclipse.swt.widgets.Event;\r
   8 \r
   9 import era.mi.gui.model.ViewModel;\r
  10 import era.mi.gui.model.components.GUIComponent;\r
  11 import era.mi.gui.model.wires.Pin;\r
  12 import net.haspamelodica.swt.helper.gcs.GeneralGC;\r
  13 import net.haspamelodica.swt.helper.swtobjectwrappers.Point;\r
  14 import net.haspamelodica.swt.helper.swtobjectwrappers.Rectangle;\r
  15 import net.haspamelodica.swt.helper.zoomablecanvas.ZoomableCanvas;\r
  16 \r
  17 /**\r
  18  * Simulation visualizer canvas.\r
  19  * \r
  20  * @author Daniel Kirschten\r
  21  */\r
  22 public class LogicUICanvas extends ZoomableCanvas\r
  23 {\r
  24         private final ViewModel model;\r
  25 \r
  26         public LogicUICanvas(Composite parent, int style, ViewModel model)\r
  27         {\r
  28                 super(parent, style);\r
  29 \r
  30                 this.model = model;\r
  31 \r
  32                 Consumer<Object> redrawConsumer = o -> redrawThreadsafe();\r
  33                 Consumer<Pin> pinAddedListener = p ->\r
  34                 {\r
  35                         p.addPinMovedListener(redrawConsumer);\r
  36                         redrawThreadsafe();\r
  37                 };\r
  38                 Consumer<Pin> pinRemovedListener = p ->\r
  39                 {\r
  40                         p.removePinMovedListener(redrawConsumer);\r
  41                         redrawThreadsafe();\r
  42                 };\r
  43                 model.addComponentAddedListener(c ->\r
  44                 {\r
  45                         c.addComponentChangedListener(redrawConsumer);\r
  46                         c.addComponentMovedListener(redrawConsumer);\r
  47                         c.addPinAddedListener(pinAddedListener);\r
  48                         c.addPinRemovedListener(pinRemovedListener);\r
  49                         redrawThreadsafe();\r
  50                 });\r
  51                 model.addComponentRemovedListener(c ->\r
  52                 {\r
  53                         c.removeComponentChangedListener(redrawConsumer);\r
  54                         c.removeComponentMovedListener(redrawConsumer);\r
  55                         c.removePinAddedListener(pinAddedListener);\r
  56                         c.removePinRemovedListener(pinRemovedListener);\r
  57                         redrawThreadsafe();\r
  58                 });\r
  59                 model.addWireAddedListener(c -> redrawThreadsafe());\r
  60                 model.addWireRemovedListener(c -> redrawThreadsafe());\r
  61 \r
  62                 addZoomedRenderer(gc ->\r
  63                 {\r
  64                         Rectangle visibleRegion = new Rectangle(offX, offY, gW / zoom, gH / zoom);\r
  65                         model.getComponents().forEach(c -> drawComponent(gc, c, visibleRegion));\r
  66                 });\r
  67                 addZoomedRenderer(gc -> model.getWires().forEach(w -> w.render(gc)));\r
  68                 addListener(SWT.MouseDown, this::mouseDown);\r
  69         }\r
  70 \r
  71         private void drawComponent(GeneralGC gc, GUIComponent component, Rectangle visibleRegion)\r
  72         {\r
  73                 component.render(gc, visibleRegion);\r
  74                 gc.setBackground(getDisplay().getSystemColor(SWT.COLOR_CYAN));\r
  75                 for (Pin p : component.getPins())\r
  76                 {\r
  77                         Point pos = p.getPos();\r
  78                         gc.fillOval(pos.x - 1, pos.y - 1, 2, 2);\r
  79                 }\r
  80         }\r
  81 \r
  82         private void mouseDown(Event e)\r
  83         {\r
  84                 if (e.button == 1)\r
  85                 {\r
  86                         Point click = displayToWorldCoords(e.x, e.y);\r
  87                         for (GUIComponent component : model.getComponents())\r
  88                                 if (component.getBounds().contains(click) && component.clicked(click.x, click.y))\r
  89                                 {\r
  90                                         redraw();\r
  91                                         break;\r
  92                                 }\r
  93                 }\r
  94         }\r
  95 }