Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.diagram / src / org / simantics / diagram / profile / ButtonNode.java

diff --git a/bundles/org.simantics.diagram/src/org/simantics/diagram/profile/ButtonNode.java b/bundles/org.simantics.diagram/src/org/simantics/diagram/profile/ButtonNode.java
new file mode 100644 (file)
index 0000000..e387057
--- /dev/null
+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/profile/ButtonNode.java
@@ -0,0 +1,167 @@
+package org.simantics.diagram.profile;\r
+\r
+import java.awt.Graphics2D;\r
+import java.awt.geom.AffineTransform;\r
+import java.awt.geom.Point2D;\r
+import java.awt.geom.Rectangle2D;\r
+\r
+import org.simantics.datatypes.literal.RGB;\r
+import org.simantics.datatypes.literal.Vec2d;\r
+import org.simantics.diagram.elements.DiagramNodeUtil;\r
+import org.simantics.diagram.internal.Activator;\r
+import org.simantics.diagram.profile.ButtonResult.A;\r
+import org.simantics.diagram.profile.ButtonResult.B;\r
+import org.simantics.scenegraph.g2d.G2DNode;\r
+import org.simantics.scenegraph.g2d.events.EventTypes;\r
+import org.simantics.scenegraph.g2d.events.MouseEvent;\r
+import org.simantics.scenegraph.g2d.events.MouseEvent.MouseButtonPressedEvent;\r
+import org.simantics.scenegraph.g2d.events.MouseEvent.MouseButtonReleasedEvent;\r
+import org.simantics.scenegraph.g2d.nodes.SVGNode;\r
+import org.simantics.scenegraph.utils.NodeUtil;\r
+import org.simantics.scl.runtime.function.Function1;\r
+\r
+public class ButtonNode extends IconButtonNode {\r
+       \r
+       private static final long serialVersionUID = -1963362069190362275L;\r
+       \r
+       private B config;\r
+       private boolean isDown = false;\r
+       private Function1<Boolean, Boolean> pressed;\r
+       \r
+       private static SVGNode ON = new SVGNode();\r
+       private static SVGNode OFF = new SVGNode();\r
+       private static boolean initialized = false;\r
+       \r
+    Rectangle2D EMPTY = new Rectangle2D.Double(0, 0, 0, 0);\r
+       \r
+       private SVGNode current = OFF;\r
+       private Rectangle2D lastBounds = EMPTY; \r
+\r
+       public void staticInit() {\r
+               if(!initialized) {\r
+                       ON.setData(createSVG("BUTTON_ON"));\r
+                       OFF.setData(createSVG("BUTTON_OFF"));\r
+                       initialized = true;\r
+               }\r
+       }\r
+       \r
+       @Override\r
+       public void init() {\r
+               staticInit();\r
+        addEventHandler(this);\r
+       }\r
+       \r
+    @Override\r
+    public void cleanup() {\r
+        removeEventHandler(this);\r
+        super.cleanup();\r
+    }\r
+       \r
+       private void setValue(double value) {\r
+               \r
+               // Value does not affect LATCH buttons\r
+               if(ButtonMode.LATCH.equals(config.mode)) return;\r
+               \r
+               if(value < 0.5) {\r
+                       current = OFF;\r
+               } else {\r
+                       current = ON;\r
+               } \r
+               \r
+       }\r
+       \r
+       private void setConfig(B config) {\r
+\r
+               if(this.config == config) return;\r
+        this.config = config;\r
+               \r
+       }\r
+       \r
+       public void setA(A data) {\r
+\r
+               setConfig(data.config);\r
+        setValue(data.value);\r
+               \r
+       }\r
+       \r
+    @Override\r
+    public void render(Graphics2D g2d) {\r
+\r
+               AffineTransform ot = null;\r
+               if (!transform.isIdentity()) {\r
+                       ot = g2d.getTransform();\r
+                       g2d.transform(transform);\r
+               }\r
+       \r
+               current.render(g2d);\r
+               lastBounds = current.getBounds();\r
+\r
+               if (ot != null)\r
+                       g2d.setTransform(ot);\r
+       \r
+    }\r
+\r
+       @Override\r
+       public Rectangle2D getBoundsInLocal() {\r
+               return lastBounds;\r
+       }\r
+\r
+       @Override\r
+       void setData(IconButtonResult state) {\r
+               ButtonResult br = (ButtonResult)state;\r
+               setA(br.getA());\r
+               pressed = br.getPressed();\r
+       }\r
+\r
+    private boolean hitTest(MouseEvent event) {\r
+        Rectangle2D bounds = getBounds();\r
+        if (bounds == null)\r
+            return false;\r
+        Point2D localPos = NodeUtil.worldToLocal(this, event.controlPosition, new Point2D.Double());\r
+        double x = localPos.getX();\r
+        double y = localPos.getY();\r
+        return bounds.contains(x, y);\r
+    }\r
+       \r
+       @Override\r
+    protected boolean mouseButtonPressed(MouseButtonPressedEvent e) {\r
+               if(!e.hasAnyButton(MouseEvent.LEFT_BUTTON)) return false;\r
+               if(!hitTest(e)) return false; \r
+               if(pressed != null) {\r
+                       pressed.apply(true);\r
+                       isDown = true;\r
+                       if(ButtonMode.LATCH.equals(config.mode)) {\r
+                               current = ON;\r
+                               DiagramNodeUtil.getCanvasContext((G2DNode)this).getContentContext().setDirty();\r
+                       }\r
+               }\r
+        return true;\r
+    }\r
+\r
+       @Override\r
+    protected boolean mouseButtonReleased(MouseButtonReleasedEvent e) {\r
+               if(e.hasAnyButton(MouseEvent.LEFT_BUTTON)) return false;\r
+               if(!hitTest(e) && !isDown) return false; \r
+               if(pressed != null) {\r
+                       pressed.apply(false);\r
+                       isDown = false;\r
+                       if(ButtonMode.LATCH.equals(config.mode)) {\r
+                               current = OFF;\r
+                               DiagramNodeUtil.getCanvasContext((G2DNode)this).getContentContext().setDirty();\r
+                       }\r
+               }\r
+        return true;\r
+    }\r
+       \r
+    @Override\r
+    public int getEventMask() {\r
+        return EventTypes.MouseButtonPressedMask\r
+                | EventTypes.MouseButtonReleasedMask\r
+                ;\r
+    }  \r
+    \r
+    public String createSVG(String iconName) {\r
+       return Activator.ICON_PROVIDER.apply(iconName, new RGB.Integer(0,  0, 0), new Vec2d(1,1));\r
+    }\r
+    \r
+}
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