[WIP] CFV Refactor

[deliverable/tracecompass.git] / tmf / org.eclipse.tracecompass.tmf.ui / src / org / eclipse / tracecompass / internal / provisional / tmf / ui / views / timegraph2 / swtjfx / examples / Example.java

diff --git a/tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/internal/provisional/tmf/ui/views/timegraph2/swtjfx/examples/Example.java b/tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/internal/provisional/tmf/ui/views/timegraph2/swtjfx/examples/Example.java
new file mode 100644 (file)
index 0000000..0d14c60
--- /dev/null
+++ b/tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/internal/provisional/tmf/ui/views/timegraph2/swtjfx/examples/Example.java
@@ -0,0 +1,61 @@
+package org.eclipse.tracecompass.internal.provisional.tmf.ui.views.timegraph2.swtjfx.examples;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+
+import javafx.application.Application;
+import javafx.beans.value.ChangeListener;
+import javafx.beans.value.ObservableValue;
+import javafx.scene.Node;
+import javafx.scene.Scene;
+import javafx.scene.control.ScrollPane;
+import javafx.scene.paint.Color;
+import javafx.scene.shape.Rectangle;
+import javafx.stage.Stage;
+
+@NonNullByDefault({})
+public class Example extends Application {
+    @Override
+    public void start(Stage stage) {
+        Node content = new Rectangle(1000, 700, Color.GREEN);
+        ScrollPane scrollPane = new ScrollPane(content);
+        scrollPane.setPrefSize(500, 300);
+
+        ChangeListener<Object> changeListener = new ChangeListener<Object>() {
+            @Override
+            public void changed(ObservableValue<? extends Object> observable, Object oldValue, Object newValue) {
+                double hmin = scrollPane.getHmin();
+                double hmax = scrollPane.getHmax();
+                double hvalue = scrollPane.getHvalue();
+                double contentWidth = content.getLayoutBounds().getWidth();
+                double viewportWidth = scrollPane.getViewportBounds().getWidth();
+
+                double hoffset =
+                    Math.max(0, contentWidth - viewportWidth) * (hvalue - hmin) / (hmax - hmin);
+
+                double vmin = scrollPane.getVmin();
+                double vmax = scrollPane.getVmax();
+                double vvalue = scrollPane.getVvalue();
+                double contentHeight = content.getLayoutBounds().getHeight();
+                double viewportHeight = scrollPane.getViewportBounds().getHeight();
+
+                double voffset =
+                    Math.max(0,  contentHeight - viewportHeight) * (vvalue - vmin) / (vmax - vmin);
+
+                System.out.printf("Offset: [%.1f, %.1f] width: %.1f height: %.1f %n",
+                        hoffset, voffset, viewportWidth, viewportHeight);
+            }
+        };
+        scrollPane.viewportBoundsProperty().addListener(changeListener);
+        scrollPane.hvalueProperty().addListener(changeListener);
+        scrollPane.vvalueProperty().addListener(changeListener);
+
+        Scene scene = new Scene(scrollPane, 640, 480);
+        stage.setScene(scene);
+
+        stage.show();
+    }
+
+    public static void main(String[] args) {
+        launch(args);
+    }
+}
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