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

   1 package mograsim.logic.ui;\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 mograsim.logic.ui.model.ViewModel;\r
  10 import mograsim.logic.ui.model.components.GUIComponent;\r
  11 import mograsim.logic.ui.model.wires.GUIWire;\r
  12 import mograsim.logic.ui.model.wires.Pin;\r
  13 import net.haspamelodica.swt.helper.gcs.GeneralGC;\r
  14 import net.haspamelodica.swt.helper.swtobjectwrappers.Point;\r
  15 import net.haspamelodica.swt.helper.swtobjectwrappers.Rectangle;\r
  16 import net.haspamelodica.swt.helper.zoomablecanvas.ZoomableCanvas;\r
  17 \r
  18 /**\r
  19  * Simulation visualizer canvas.\r
  20  * \r
  21  * @author Daniel Kirschten\r
  22  */\r
  23 public class LogicUICanvas extends ZoomableCanvas\r
  24 {\r
  25         private static final boolean DRAW_PINS = false;\r
  26 \r
  27         private final ViewModel model;\r
  28 \r
  29         public LogicUICanvas(Composite parent, int style, ViewModel model)\r
  30         {\r
  31                 super(parent, style);\r
  32 \r
  33                 this.model = model;\r
  34 \r
  35                 Consumer<Object> redrawConsumer = o -> redrawThreadsafe();\r
  36                 Consumer<Pin> pinAddedListener = p ->\r
  37                 {\r
  38                         p.addPinMovedListener(redrawConsumer);\r
  39                         redrawThreadsafe();\r
  40                 };\r
  41                 Consumer<Pin> pinRemovedListener = p ->\r
  42                 {\r
  43                         p.removePinMovedListener(redrawConsumer);\r
  44                         redrawThreadsafe();\r
  45                 };\r
  46                 Consumer<? super GUIComponent> componentAddedListener = c ->\r
  47                 {\r
  48                         c.addComponentLookChangedListener(redrawConsumer);\r
  49                         c.addComponentMovedListener(redrawConsumer);\r
  50                         c.addPinAddedListener(pinAddedListener);\r
  51                         c.addPinRemovedListener(pinRemovedListener);\r
  52                         redrawThreadsafe();\r
  53                 };\r
  54                 model.addComponentAddedListener(componentAddedListener);\r
  55                 model.getComponents().forEach(componentAddedListener);\r
  56                 model.addComponentRemovedListener(c ->\r
  57                 {\r
  58                         c.removeComponentLookChangedListener(redrawConsumer);\r
  59                         c.removeComponentMovedListener(redrawConsumer);\r
  60                         c.removePinAddedListener(pinAddedListener);\r
  61                         c.removePinRemovedListener(pinRemovedListener);\r
  62                         redrawThreadsafe();\r
  63                 });\r
  64                 Consumer<? super GUIWire> wireAddedListener = w ->\r
  65                 {\r
  66                         w.addWireLookChangedListener(redrawConsumer);\r
  67                         redrawThreadsafe();\r
  68                 };\r
  69                 model.addWireAddedListener(wireAddedListener);\r
  70                 model.getWires().forEach(wireAddedListener);\r
  71                 model.addWireRemovedListener(w ->\r
  72                 {\r
  73                         w.removeWireLookChangedListener(redrawConsumer);\r
  74                         redrawThreadsafe();\r
  75                 });\r
  76 \r
  77                 addZoomedRenderer(gc ->\r
  78                 {\r
  79                         gc.setLineWidth(.5);\r
  80                         model.getWires().forEach(w -> w.render(gc));\r
  81                         Rectangle visibleRegion = new Rectangle(offX, offY, gW / zoom, gH / zoom);\r
  82                         model.getComponents().forEach(c -> drawComponent(gc, c, visibleRegion));\r
  83                 });\r
  84                 addListener(SWT.MouseDown, this::mouseDown);\r
  85         }\r
  86 \r
  87         private void drawComponent(GeneralGC gc, GUIComponent component, Rectangle visibleRegion)\r
  88         {\r
  89                 component.render(gc, visibleRegion);\r
  90                 if (DRAW_PINS)\r
  91                 {\r
  92                         gc.setBackground(getDisplay().getSystemColor(SWT.COLOR_DARK_CYAN));\r
  93                         for (Pin p : component.getPins())\r
  94                         {\r
  95                                 Point pos = p.getPos();\r
  96                                 gc.fillOval(pos.x - 1, pos.y - 1, 2, 2);\r
  97                         }\r
  98                 }\r
  99         }\r
 100 \r
 101         private void mouseDown(Event e)\r
 102         {\r
 103                 if (e.button == 1)\r
 104                 {\r
 105                         Point click = displayToWorldCoords(e.x, e.y);\r
 106                         for (GUIComponent component : model.getComponents())\r
 107                                 if (component.getBounds().contains(click) && component.clicked(click.x, click.y))\r
 108                                 {\r
 109                                         redraw();\r
 110                                         break;\r
 111                                 }\r
 112                 }\r
 113         }\r
 114 }