X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=eclipse%2Forg.argeo.cms.swt%2Fsrc%2Forg%2Fargeo%2Fcms%2Fswt%2Fwidgets%2FScrolledPage.java;fp=eclipse%2Forg.argeo.cms.swt%2Fsrc%2Forg%2Fargeo%2Fcms%2Fswt%2Fwidgets%2FScrolledPage.java;h=135f4c14744b9dc9e67b14772481d57a9f7ff937;hb=24241fea161ffb28b879739bbeb986bdaa30ebd7;hp=0000000000000000000000000000000000000000;hpb=55d1a78150b6be0004f6bcb28703bcdd6daf55a1;p=lgpl%2Fargeo-commons.git

diff --git a/eclipse/org.argeo.cms.swt/src/org/argeo/cms/swt/widgets/ScrolledPage.java b/eclipse/org.argeo.cms.swt/src/org/argeo/cms/swt/widgets/ScrolledPage.java
new file mode 100644
index 000000000..135f4c147
--- /dev/null
+++ b/eclipse/org.argeo.cms.swt/src/org/argeo/cms/swt/widgets/ScrolledPage.java
@@ -0,0 +1,74 @@
+package org.argeo.cms.swt.widgets;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.custom.ScrolledComposite;
+import org.eclipse.swt.events.ControlEvent;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+
+/**
+ * A composite that can be scrolled vertically. It wraps a
+ * {@link ScrolledComposite} (and is being wrapped by it), simplifying its
+ * configuration.
+ */
+public class ScrolledPage extends Composite {
+	private static final long serialVersionUID = 1593536965663574437L;
+
+	private ScrolledComposite scrolledComposite;
+
+	public ScrolledPage(Composite parent, int style) {
+		this(parent, style, false);
+	}
+
+	public ScrolledPage(Composite parent, int style, boolean alwaysShowScroll) {
+		super(createScrolledComposite(parent, alwaysShowScroll), style);
+		scrolledComposite = (ScrolledComposite) getParent();
+		scrolledComposite.setContent(this);
+
+		scrolledComposite.setExpandVertical(true);
+		scrolledComposite.setExpandHorizontal(true);
+		scrolledComposite.addControlListener(new ScrollControlListener());
+	}
+
+	private static ScrolledComposite createScrolledComposite(Composite parent, boolean alwaysShowScroll) {
+		ScrolledComposite scrolledComposite = new ScrolledComposite(parent, SWT.V_SCROLL);
+		scrolledComposite.setAlwaysShowScrollBars(alwaysShowScroll);
+		return scrolledComposite;
+	}
+
+	@Override
+	public void layout(boolean changed, boolean all) {
+		updateScroll();
+		super.layout(changed, all);
+	}
+
+	public void showControl(Control control) {
+		scrolledComposite.showControl(control);
+	}
+
+	protected void updateScroll() {
+		Rectangle r = scrolledComposite.getClientArea();
+		Point preferredSize = computeSize(r.width, SWT.DEFAULT);
+		scrolledComposite.setMinHeight(preferredSize.y);
+	}
+
+	// public ScrolledComposite getScrolledComposite() {
+	// return this.scrolledComposite;
+	// }
+
+	/** Set it on the wrapping scrolled composite */
+	@Override
+	public void setLayoutData(Object layoutData) {
+		scrolledComposite.setLayoutData(layoutData);
+	}
+
+	private class ScrollControlListener extends org.eclipse.swt.events.ControlAdapter {
+		private static final long serialVersionUID = -3586986238567483316L;
+
+		public void controlResized(ControlEvent e) {
+			updateScroll();
+		}
+	}
+}