X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.eclipse.swt.win32.win32.x86_64%2Fsrc%2Forg%2Feclipse%2Fswt%2Fcustom%2FCTabFolderLayout.java;fp=bundles%2Forg.eclipse.swt.win32.win32.x86_64%2Fsrc%2Forg%2Feclipse%2Fswt%2Fcustom%2FCTabFolderLayout.java;h=5b653a493621a6cccc6d6af24d9942055b07b319;hb=6b98970d0458754dd67f789afbd0a39e1e7ac6eb;hp=0000000000000000000000000000000000000000;hpb=56a61575ce0d27b340cb12438c8a7f303842095e;p=simantics%2Fplatform.git

diff --git a/bundles/org.eclipse.swt.win32.win32.x86_64/src/org/eclipse/swt/custom/CTabFolderLayout.java b/bundles/org.eclipse.swt.win32.win32.x86_64/src/org/eclipse/swt/custom/CTabFolderLayout.java
new file mode 100644
index 000000000..5b653a493
--- /dev/null
+++ b/bundles/org.eclipse.swt.win32.win32.x86_64/src/org/eclipse/swt/custom/CTabFolderLayout.java
@@ -0,0 +1,123 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2012 IBM Corporation and others.
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * 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 {
+@Override
+protected Point computeSize(Composite composite, int wHint, int hHint, boolean flushCache) {
+	CTabFolder folder = (CTabFolder)composite;
+	CTabItem[] items = folder.items;
+	CTabFolderRenderer renderer = folder.renderer;
+	// preferred width of tab area to show all tabs
+	int tabW = 0;
+	int selectedIndex = folder.selectedIndex;
+	if (selectedIndex == -1) selectedIndex = 0;
+	GC gc = new GC(folder);
+	for (int i = 0; i < items.length; i++) {
+		if (folder.single) {
+			tabW = Math.max(tabW, renderer.computeSize(i, SWT.SELECTED, gc, SWT.DEFAULT, SWT.DEFAULT).x);
+		} else {
+			int state = 0;
+			if (i == selectedIndex) state |= SWT.SELECTED;
+			tabW += renderer.computeSize(i, state, gc, SWT.DEFAULT, SWT.DEFAULT).x;
+		}
+	}
+
+	int width = 0, wrapHeight = 0;
+	boolean leftControl = false, rightControl = false;
+	if (wHint == SWT.DEFAULT) {
+		for (int i = 0; i < folder.controls.length; i++) {
+			Control control = folder.controls[i];
+			if (!control.isDisposed() && control.getVisible()) {
+				if ((folder.controlAlignments[i] & SWT.LEAD) != 0) {
+					leftControl = true;
+				} else {
+					rightControl = true;
+				}
+				width += control.computeSize(SWT.DEFAULT, SWT.DEFAULT).x;
+			}
+		}
+	} else {
+		Point size = new Point (wHint, hHint);
+		boolean[][] positions = new boolean[1][];
+		Rectangle[] rects = folder.computeControlBounds(size, positions);
+		int minY = Integer.MAX_VALUE, maxY = 0;
+		for (int i = 0; i < rects.length; i++) {
+			if (positions[0][i]) {
+				minY = Math.min(minY, rects[i].y);
+				maxY = Math.max(maxY, rects[i].y + rects[i].height);
+				wrapHeight = maxY - minY;
+			} else {
+				if ((folder.controlAlignments[i] & SWT.LEAD) != 0) {
+					leftControl = true;
+				} else {
+					rightControl = true;
+				}
+				width += rects[i].width;
+			}
+		}
+	}
+	if (leftControl) width += CTabFolder.SPACING * 2;
+	if (rightControl) width += CTabFolder.SPACING * 2;
+	tabW += width;
+
+	gc.dispose();
+
+	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].control;
+		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 + folder.marginWidth);
+	int minHeight = (folder.minimized) ? 0 : controlH + wrapHeight;
+	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);
+}
+@Override
+protected boolean flushCache(Control control) {
+	return true;
+}
+@Override
+protected void layout(Composite composite, boolean flushCache) {
+	CTabFolder folder = (CTabFolder)composite;
+	// resize content
+	if (folder.selectedIndex != -1) {
+		Control control = folder.items[folder.selectedIndex].control;
+		if (control != null && !control.isDisposed()) {
+			control.setBounds(folder.getClientArea());
+		}
+	}
+}
+}