The final restructured version for automatic build using maven tycho

[Mograsim.git] / plugins / net.mograsim.logic.model.editor / src / net / mograsim / logic / model / editor / handles / WireHandle.java

diff --git a/plugins/net.mograsim.logic.model.editor/src/net/mograsim/logic/model/editor/handles/WireHandle.java b/plugins/net.mograsim.logic.model.editor/src/net/mograsim/logic/model/editor/handles/WireHandle.java
new file mode 100644 (file)
index 0000000..839c2b5
--- /dev/null
+++ b/plugins/net.mograsim.logic.model.editor/src/net/mograsim/logic/model/editor/handles/WireHandle.java
@@ -0,0 +1,161 @@
+package net.mograsim.logic.model.editor.handles;
+
+import java.util.Optional;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.widgets.Display;
+
+import net.haspamelodica.swt.helper.gcs.GeneralGC;
+import net.haspamelodica.swt.helper.swtobjectwrappers.Point;
+import net.haspamelodica.swt.helper.swtobjectwrappers.Rectangle;
+import net.mograsim.logic.model.editor.states.EditorState;
+import net.mograsim.logic.model.model.LogicModelModifiable;
+import net.mograsim.logic.model.model.wires.ModelWire;
+
+public class WireHandle extends Handle
+{
+       private boolean selected = false;
+       private final static double WIDTH = 2.0;
+       private final static double WIDTH_SQUARED = WIDTH * WIDTH;
+       private final LogicModelModifiable model;
+       public final ModelWire parent;
+
+       public WireHandle(LogicModelModifiable model, ModelWire parent)
+       {
+               super(5);
+               this.model = model;
+               this.parent = parent;
+               parent.addPathChangedListener(c -> updateBounds());
+               updateBounds();
+       }
+
+       @Override
+       void destroy()
+       {
+               super.destroy();
+               parent.removePathChangedListener(c -> updateBounds());
+       }
+
+       public void updateBounds()
+       {
+               Rectangle r = parent.getBounds();
+               moveTo(r.x, r.y);
+               setSize(r.width, r.height);
+       }
+
+       @Override
+       public void render(GeneralGC gc)
+       {
+               if (selected)
+               {
+                       gc.setLineWidth(WIDTH);
+                       gc.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_YELLOW));
+                       gc.drawPolyline(parent.getEffectivePath());
+               }
+       }
+
+       @Override
+       public void onSelect()
+       {
+               selected = true;
+               callRedrawListeners();
+       }
+
+       @Override
+       public void onDeselect()
+       {
+               selected = false;
+               callRedrawListeners();
+       }
+
+       @Override
+       public void reqDelete()
+       {
+               // this wire could already be removed implicitly when removing a selection containing both wires and components
+               if (model.getWireByName(parent.name) != null)
+                       model.destroyWire(parent);
+       }
+
+       @Override
+       public boolean contains(double x, double y)
+       {
+               return click(parent, x, y).isPresent();
+       }
+
+       @Override
+       public boolean click(double x, double y, int stateMask, EditorState state)
+       {
+               Optional<WireClickData> op = click(parent, x, y);
+               if (op.isEmpty())
+                       return false;
+               WireClickData data = op.get();
+               return state.clickedHandle(new WireHandleClickInfo(this, data.segment, data.pos, stateMask));
+       }
+
+       public static class WireHandleClickInfo extends HandleClickInfo
+       {
+               public final int segment;
+               public final Point posOnWire;
+
+               WireHandleClickInfo(WireHandle clicked, int segment, Point posOnWire, int stateMask)
+               {
+                       super(clicked, stateMask);
+                       this.segment = segment;
+                       this.posOnWire = posOnWire;
+               }
+
+       }
+
+       private static Optional<WireClickData> click(ModelWire w, double x, double y)
+       {
+               Rectangle modifiedBounds = w.getBounds();
+               modifiedBounds.x -= WIDTH;
+               modifiedBounds.y -= WIDTH;
+               modifiedBounds.width += WIDTH * 2;
+               modifiedBounds.height += WIDTH * 2;
+               if (modifiedBounds.contains(x, y))
+               {
+                       double[] effectivePath = w.getEffectivePath();
+                       for (int i = 3; i < effectivePath.length; i += 2)
+                       {
+                               double a1 = effectivePath[i - 3], a2 = effectivePath[i - 2], b1 = effectivePath[i - 1], b2 = effectivePath[i], r1 = b2 - a2,
+                                               r2 = a1 - b1;
+
+                               double f = ((x - a1) * r2 + (a2 - y) * r1) / (-r2 * r2 - r1 * r1);
+                               if (f >= 0 && f <= 1)
+                               {
+                                       double e1 = a1 + f * (b1 - a1), e2 = a2 + f * (b2 - a2);
+                                       r1 = e1 - x;
+                                       r2 = e2 - y;
+                                       if (r1 * r1 + r2 * r2 <= WIDTH_SQUARED)
+                                               return Optional.of(new WireClickData(new Point(e1, e2), (i / 2) - 1));
+                               }
+                       }
+               }
+               return Optional.empty();
+       }
+
+       private final static class WireClickData
+       {
+               WireClickData(Point pos, int segment)
+               {
+                       this.pos = pos;
+                       this.segment = segment;
+               }
+
+               /**
+                * Position on the wire that is closest to the click
+                */
+               public final Point pos;
+               /**
+                * Segment of the wire that the {@link Point} pos is on
+                */
+               public final int segment;
+       }
+
+       @Override
+       public HandleType getType()
+       {
+               return HandleType.WIRE;
+       }
+}