-package era.mi.gui;
-
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.atomic.AtomicBoolean;
-
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.layout.FillLayout;
-import org.eclipse.swt.widgets.Display;
-import org.eclipse.swt.widgets.Event;
-import org.eclipse.swt.widgets.Shell;
-
-import era.mi.gui.components.BasicGUIComponent;
-import era.mi.gui.wires.GUIWire;
-import era.mi.logic.Simulation;
-import net.haspamelodica.swt.helper.gcs.GeneralGC;
-import net.haspamelodica.swt.helper.gcs.TranslatedGC;
-import net.haspamelodica.swt.helper.swtobjectwrappers.Point;
-import net.haspamelodica.swt.helper.zoomablecanvas.ZoomableCanvas;
-import net.haspamelodica.swt.helper.zoomablecanvas.helper.ZoomableCanvasOverlay;
-import net.haspamelodica.swt.helper.zoomablecanvas.helper.ZoomableCanvasUserInput;
-
-/**
- * Standalone simulation visualizer.
- *
- * @author Daniel Kirschten
- */
-public class LogicUI
-{
- private final Display display;
- private final Shell shell;
- private final ZoomableCanvas canvas;
- private final Set<BasicGUIComponent> components;
- private final Map<BasicGUIComponent, Point> componentPositions;
- private final Set<GUIWire> wires;
-
- public LogicUI()
- {
- display = new Display();
- shell = new Shell(display);
- shell.setLayout(new FillLayout());
- canvas = new ZoomableCanvas(shell, SWT.NONE);
-
- components = new HashSet<>();
- componentPositions = new HashMap<>();
- wires = new HashSet<>();
-
- canvas.addZoomedRenderer(gc -> components.forEach(c -> drawComponent(gc, c)));
- canvas.addZoomedRenderer(gc -> wires.forEach(w -> w.render(gc)));
- ZoomableCanvasUserInput userInput = new ZoomableCanvasUserInput(canvas);
- userInput.buttonDrag = 3;
- userInput.buttonZoom = 2;
- userInput.enableUserInput();
- new ZoomableCanvasOverlay(canvas, null).enableScale();
- canvas.addListener(SWT.MouseDown, this::mouseDown);
- }
-
- /**
- * Add a component to be drawn. Returns the given component for convenience.
- *
- * @author Daniel Kirschten
- */
- public <C extends BasicGUIComponent> C addComponent(C component, double x, double y)
- {
- components.add(component);
- componentPositions.put(component, new Point(x, y));
- return component;
- }
-
- /**
- * Add a graphical wire between the given connection points of the given components. The given components have to be added and the given
- * connection points have to be connected logically first.
- *
- * @author Daniel Kirschten
- */
- public void addWire(BasicGUIComponent component1, int component1ConnectionIndex, BasicGUIComponent component2,
- int component2ConnectionIndex, Point... path)
- {
- wires.add(new GUIWire(canvas::redrawThreadsafe, component1, component1ConnectionIndex, componentPositions.get(component1),
- component2, component2ConnectionIndex, componentPositions.get(component2), path));
- }
-
- private void drawComponent(GeneralGC gc, BasicGUIComponent component)
- {
- TranslatedGC tgc = new TranslatedGC(gc, componentPositions.get(component));
- component.render(tgc);
- tgc.setBackground(display.getSystemColor(SWT.COLOR_BLUE));
- }
-
- private void mouseDown(Event e)
- {
- if (e.button == 1)
- {
- Point click = canvas.displayToWorldCoords(e.x, e.y);
- for (BasicGUIComponent component : components)
- if (component.getBounds().translate(componentPositions.get(component)).contains(click))
- {
- if (component.clicked(click.x, click.y))
- canvas.redraw();
- break;
- }
- }
- }
-
- /**
- * Start the simulation timeline, and open the UI shell. Returns when the shell is closed.
- */
- public void run()
- {
- AtomicBoolean running = new AtomicBoolean(true);
- Thread simulationThread = new Thread(() ->
- {
- while (running.get())
- {
- // always execute to keep timeline from "hanging behind" for too long
- Simulation.TIMELINE.executeUpTo(System.currentTimeMillis(), System.currentTimeMillis() + 10);
- long sleepTime;
- if (Simulation.TIMELINE.hasNext())
- sleepTime = Simulation.TIMELINE.nextEventTime() - System.currentTimeMillis();
- else
- sleepTime = 10;
- try
- {
- if (sleepTime > 0)
- Thread.sleep(sleepTime);
- }
- catch (InterruptedException e)
- {
- } // it is normal execution flow to be interrupted
- }
- });
- simulationThread.start();
- Simulation.TIMELINE.addEventAddedListener(event ->
- {
- if (event.getTiming() <= System.currentTimeMillis())
- simulationThread.interrupt();
- });
-
- shell.open();
- while (!shell.isDisposed())
- if (!display.readAndDispatch())
- display.sleep();
- running.set(false);
- simulationThread.interrupt();
- }
-}
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