1 files changed, 82 insertions, 0 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderLayout.java b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderLayout.java
new file mode 100644
index 0000000000..e01fac6e55
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT Custom Widgets/common/org/eclipse/swt/custom/CTabFolderLayout.java
@@ -0,0 +1,82 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.custom;
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * This class provides the layout for CTabFolder
+ * 
+ * @see CTabFolder
+ */
+class CTabFolderLayout extends Layout {
+protected Point computeSize(Composite composite, int wHint, int hHint, boolean flushCache) {
+	CTabFolder folder = (CTabFolder)composite;
+	CTabItem[] items = folder.items;
+	// preferred width of tab area to show all tabs
+	int tabW = 0;
+	GC gc = new GC(folder);
+	for (int i = 0; i < items.length; i++) {
+		if (folder.single) {
+			tabW = Math.max(tabW, items[i].preferredWidth(gc, true, false));
+		} else {
+			tabW += items[i].preferredWidth(gc, i == folder.selectedIndex, false);
+		}
+	}
+	gc.dispose();
+	tabW += 3;
+	if (folder.showMax) tabW += CTabFolder.BUTTON_SIZE;
+	if (folder.showMin) tabW += CTabFolder.BUTTON_SIZE;
+	if (folder.single) tabW += 3*CTabFolder.BUTTON_SIZE/2; //chevron
+	if (folder.topRight != null) {
+		Point pt = folder.topRight.computeSize(SWT.DEFAULT, folder.tabHeight, flushCache);
+		tabW += 3 + pt.x;
+	}
+	if (!folder.single && !folder.simple) tabW += folder.curveWidth - 2*folder.curveIndent;
+	
+	int controlW = 0;
+	int controlH = 0;
+	// preferred size of controls in tab items
+	for (int i = 0; i < items.length; i++) {
+		Control control = items[i].getControl();
+		if (control != null && !control.isDisposed()){
+			Point size = control.computeSize (wHint, hHint, flushCache);
+			controlW = Math.max (controlW, size.x);
+			controlH = Math.max (controlH, size.y);
+		}
+	}
+
+	int minWidth = Math.max(tabW, controlW);
+	int minHeight = (folder.minimized) ? 0 : controlH;
+	if (minWidth == 0) minWidth = CTabFolder.DEFAULT_WIDTH;
+	if (minHeight == 0) minHeight = CTabFolder.DEFAULT_HEIGHT;
+	
+	if (wHint != SWT.DEFAULT) minWidth  = wHint;
+	if (hHint != SWT.DEFAULT) minHeight = hHint;
+	
+	return new Point (minWidth, minHeight);
+}
+protected boolean flushCache(Control control) {
+	return true;
+}
+protected void layout(Composite composite, boolean flushCache) {
+	CTabFolder folder = (CTabFolder)composite;
+	// resize content
+	if (folder.selectedIndex != -1) {
+		Control control = folder.items[folder.selectedIndex].getControl();
+		if (control != null && !control.isDisposed()) {
+			control.setBounds(folder.getClientArea());
+		}
+	}
+}
+}