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.GUIWire;\r
  12 import era.mi.gui.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 final ViewModel model;\r
  26 \r
  27         public LogicUICanvas(Composite parent, int style, ViewModel model)\r
  28         {\r
  29                 super(parent, style);\r
  30 \r
  31                 this.model = model;\r
  32 \r
  33                 Consumer<Object> redrawConsumer = o -> redrawThreadsafe();\r
  34                 Consumer<Pin> pinAddedListener = p ->\r
  35                 {\r
  36                         p.addPinMovedListener(redrawConsumer);\r
  37                         redrawThreadsafe();\r
  38                 };\r
  39                 Consumer<Pin> pinRemovedListener = p ->\r
  40                 {\r
  41                         p.removePinMovedListener(redrawConsumer);\r
  42                         redrawThreadsafe();\r
  43                 };\r
  44                 Consumer<? super GUIComponent> componentAddedListener = c ->\r
  45                 {\r
  46                         c.addComponentLookChangedListener(redrawConsumer);\r
  47                         c.addComponentMovedListener(redrawConsumer);\r
  48                         c.addPinAddedListener(pinAddedListener);\r
  49                         c.addPinRemovedListener(pinRemovedListener);\r
  50                         redrawThreadsafe();\r
  51                 };\r
  52                 model.addComponentAddedListener(componentAddedListener);\r
  53                 model.getComponents().forEach(componentAddedListener);\r
  54                 model.addComponentRemovedListener(c ->\r
  55                 {\r
  56                         c.removeComponentLookChangedListener(redrawConsumer);\r
  57                         c.removeComponentMovedListener(redrawConsumer);\r
  58                         c.removePinAddedListener(pinAddedListener);\r
  59                         c.removePinRemovedListener(pinRemovedListener);\r
  60                         redrawThreadsafe();\r
  61                 });\r
  62                 Consumer<? super GUIWire> wireAddedListener = w ->\r
  63                 {\r
  64                         w.addWireLookChangedListener(redrawConsumer);\r
  65                         redrawThreadsafe();\r
  66                 };\r
  67                 model.addWireAddedListener(wireAddedListener);\r
  68                 model.getWires().forEach(wireAddedListener);\r
  69                 model.addWireRemovedListener(w ->\r
  70                 {\r
  71                         w.removeWireLookChangedListener(redrawConsumer);\r
  72                         redrawThreadsafe();\r
  73                 });\r
  74 \r
  75                 addZoomedRenderer(gc ->\r
  76                 {\r
  77                         Rectangle visibleRegion = new Rectangle(offX, offY, gW / zoom, gH / zoom);\r
  78                         model.getComponents().forEach(c -> drawComponent(gc, c, visibleRegion));\r
  79                 });\r
  80                 addZoomedRenderer(gc -> model.getWires().forEach(w -> w.render(gc)));\r
  81                 addListener(SWT.MouseDown, this::mouseDown);\r
  82         }\r
  83 \r
  84         private void drawComponent(GeneralGC gc, GUIComponent component, Rectangle visibleRegion)\r
  85         {\r
  86                 component.render(gc, visibleRegion);\r
  87                 gc.setBackground(getDisplay().getSystemColor(SWT.COLOR_DARK_CYAN));\r
  88                 for (Pin p : component.getPins())\r
  89                 {\r
  90                         Point pos = p.getPos();\r
  91                         gc.fillOval(pos.x - 1, pos.y - 1, 2, 2);\r
  92                 }\r
  93         }\r
  94 \r
  95         private void mouseDown(Event e)\r
  96         {\r
  97                 if (e.button == 1)\r
  98                 {\r
  99                         Point click = displayToWorldCoords(e.x, e.y);\r
 100                         for (GUIComponent component : model.getComponents())\r
 101                                 if (component.getBounds().contains(click) && component.clicked(click.x, click.y))\r
 102                                 {\r
 103                                         redraw();\r
 104                                         break;\r
 105                                 }\r
 106                 }\r
 107         }\r
 108 }