X-Git-Url: https://mograsim.net/gitweb/?a=blobdiff_plain;f=LogicUI%2Fsrc%2Fera%2Fmi%2Fgui%2FLogicUICanvas.java;fp=LogicUI%2Fsrc%2Fera%2Fmi%2Fgui%2FLogicUICanvas.java;h=fd6d4daa030e919e9d55679a1dc011b3e335c3df;hb=da0a4b7d0619283bb4384091356ce3f105c84e78;hp=0000000000000000000000000000000000000000;hpb=d51bf9c3df364fa37f80730a02a67009edf729e4;p=Mograsim.git

diff --git a/LogicUI/src/era/mi/gui/LogicUICanvas.java b/LogicUI/src/era/mi/gui/LogicUICanvas.java
new file mode 100644
index 00000000..fd6d4daa
--- /dev/null
+++ b/LogicUI/src/era/mi/gui/LogicUICanvas.java
@@ -0,0 +1,89 @@
+package era.mi.gui;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Event;
+
+import era.mi.gui.components.BasicGUIComponent;
+import era.mi.gui.wires.GUIWire;
+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;
+
+/**
+ * Simulation visualizer canvas.
+ * 
+ * @author Daniel Kirschten
+ */
+public class LogicUICanvas extends ZoomableCanvas
+{
+	private final Set<BasicGUIComponent> components;
+	private final Map<BasicGUIComponent, Point> componentPositions;
+	private final Set<GUIWire> wires;
+
+	public LogicUICanvas(Composite parent, int style)
+	{
+		super(parent, style);
+
+		components = new HashSet<>();
+		componentPositions = new HashMap<>();
+		wires = new HashSet<>();
+
+		addZoomedRenderer(gc -> components.forEach(c -> drawComponent(gc, c)));
+		addZoomedRenderer(gc -> wires.forEach(w -> w.render(gc)));
+		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(this::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(getDisplay().getSystemColor(SWT.COLOR_BLUE));
+	}
+
+	private void mouseDown(Event e)
+	{
+		if (e.button == 1)
+		{
+			Point click = 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))
+						redraw();
+					break;
+				}
+		}
+	}
+}
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