X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=org.simantics.district.network.ui%2Fsrc%2Forg%2Fsimantics%2Fdistrict%2Fnetwork%2Fui%2Fnodes%2FDistrictNetworkHoverInfoNode.java;fp=org.simantics.district.network.ui%2Fsrc%2Forg%2Fsimantics%2Fdistrict%2Fnetwork%2Fui%2Fnodes%2FDistrictNetworkHoverInfoNode.java;h=cb7053a01839d4c0a457e859c56a2985c76afd4f;hb=731368eea74c3292199315a38d6914b09b813632;hp=0000000000000000000000000000000000000000;hpb=e1559239456cfd3d9ad925cd3bbd4b04a41e71d6;p=simantics%2Fdistrict.git

diff --git a/org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkHoverInfoNode.java b/org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkHoverInfoNode.java
new file mode 100644
index 00000000..cb7053a0
--- /dev/null
+++ b/org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkHoverInfoNode.java
@@ -0,0 +1,109 @@
+package org.simantics.district.network.ui.nodes;
+
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.Graphics2D;
+import java.awt.geom.AffineTransform;
+import java.awt.geom.Point2D;
+import java.awt.geom.Rectangle2D;
+import java.util.List;
+import java.util.concurrent.atomic.AtomicReference;
+
+import org.simantics.scenegraph.g2d.G2DNode;
+import org.simantics.scl.runtime.Lists;
+import org.simantics.scl.runtime.tuple.Tuple3;
+
+public class DistrictNetworkHoverInfoNode extends G2DNode implements HoverSensitiveNode {
+
+	private static final Font FONT = new Font(Font.DIALOG, Font.PLAIN, 12);
+
+	private static final long serialVersionUID = 1L;
+
+	public static final String NODE_KEY = "DISTRICT_NETWORK_HOVER_INFO";
+
+	private static final int W1 = 50;
+	private static final int W2 = 30;
+	private static final int PAD = 5;
+
+	private List<Tuple3> labels;
+
+	private Point2D origin;
+
+	private boolean hover = false;
+	
+	private static AtomicReference<DistrictNetworkHoverInfoNode> activeNode = new AtomicReference<>();
+
+	@Override
+	public void render(Graphics2D g) {
+		if (!hover || activeNode.get() != this)
+			return;
+
+		AffineTransform ot = g.getTransform();
+		Font of = g.getFont();
+		doRender(g);
+		g.setFont(of);
+		g.setTransform(ot);
+	}
+
+	private void doRender(Graphics2D g) {
+		g.translate(origin.getX(), origin.getY());
+		double scale = 1.5 / g.getTransform().getScaleX();
+		g.scale(scale, scale);
+
+		g.setFont(FONT);
+		double rowHeight = g.getFontMetrics().getHeight() * 1.1;
+
+		g.setColor(Color.BLACK);
+		
+		for (Tuple3 t : labels) {
+			g.translate(0.f, -rowHeight);
+			
+			if (t.c0 != null) {
+				g.drawString((String) t.c0, -(W1 + PAD + W2), 0.f);
+			}
+			
+			if (t.c1 != null) {
+				int width1 = g.getFontMetrics().stringWidth((String) t.c1);
+				g.drawString((String) t.c1, - width1, 0.f);
+			}
+			
+			if (t.c2 != null) {
+				g.drawString((String) t.c2, PAD, 0.f);
+			}
+		}
+	}
+
+	@Override
+	public Rectangle2D getBoundsInLocal() {
+		return null;
+	}
+
+	@SuppressWarnings("unchecked")
+	public void setLabels(List<Tuple3> list) {
+		this.labels = Lists.reverse(list);
+	}
+
+	public void setOrigin(Point2D origin) {
+		this.origin = origin;
+	}
+
+	@Override
+	public boolean hover(boolean hover, boolean isConnectionTool) {
+		hover = hover && activeNode.updateAndGet(current -> current == null ? this : current) == this;
+		boolean changed = hover != this.hover;
+		this.hover = hover;
+		
+		if (changed) {
+			if (!hover) activeNode.updateAndGet(current -> current == this ? null : current);
+			repaint();
+		}
+		
+		return changed;
+	}
+	
+	@Override
+	public void delete() {
+		super.delete();
+		activeNode.getAndUpdate(current -> current == this ? null : current);
+	}
+}