bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/ToolBar.java - platform/eclipse.platform.swt - Git at Google

 package org.eclipse.swt.widgets;

 /*
  * Copyright (c) 2000, 2002 IBM Corp.  All rights reserved.
  * This file is made available under the terms of the Common Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/cpl-v10.html
  */

 import org.eclipse.swt.internal.carbon.OS;

 import org.eclipse.swt.*;
 import org.eclipse.swt.graphics.*;

 public class ToolBar extends Composite {
 	int itemCount;
 	ToolItem [] items;


 public ToolBar (Composite parent, int style) {
 	super (parent, checkStyle (style));

 	/*
 	* Ensure that either of HORIZONTAL or VERTICAL is set.
 	* NOTE: HORIZONTAL and VERTICAL have the same values
 	* as H_SCROLL and V_SCROLL so it is necessary to first
 	* clear these bits to avoid scroll bars and then reset
 	* the bits using the original style supplied by the
 	* programmer.
 	*/
 	if ((style & SWT.VERTICAL) != 0) {
 		this.style |= SWT.VERTICAL;
 	} else {
 		this.style |= SWT.HORIZONTAL;
 	}
 }

 static int checkStyle (int style) {
 	/*
 	* Even though it is legal to create this widget
 	* with scroll bars, they serve no useful purpose
 	* because they do not automatically scroll the
 	* widget's client area.  The fix is to clear
 	* the SWT style.
 	*/
 	return style & ~(SWT.H_SCROLL | SWT.V_SCROLL);
 }

 protected void checkSubclass () {
 	if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
 }

 public Point computeSize (int wHint, int hHint, boolean changed) {
 	checkWidget();
 	int width = wHint, height = hHint;
 	if (wHint == SWT.DEFAULT) width = 0x7FFFFFFF;
 	if (hHint == SWT.DEFAULT) height = 0x7FFFFFFF;
 	int [] result = layout (width, height, false);
 	Point extent = new Point (result [1], result [2]);
 	if (wHint != SWT.DEFAULT) extent.x = wHint;
 	if (hHint != SWT.DEFAULT) extent.y = hHint;
 	return extent;
 }

 void createHandle () {
 	state |= GRAB;
 	super.createHandle (parent.handle);
 }

 void createItem (ToolItem item, int index) {
 	if (!(0 <= index && index <= itemCount)) error (SWT.ERROR_INVALID_RANGE);
 	if (itemCount == items.length) {
 		ToolItem [] newItems = new ToolItem [itemCount + 4];
 		System.arraycopy (items, 0, newItems, 0, items.length);
 		items = newItems;
 	}
 	item.createWidget ();
 	System.arraycopy (items, index, items, index + 1, itemCount++ - index);
 	items [index] = item;
 	if (parent.font != null) item.setFontStyle (parent.font);
 }

 void createWidget () {
 	super.createWidget ();
 	items = new ToolItem [4];
 	itemCount = 0;
 }

 int defaultThemeFont () {
 	return OS.kThemeToolbarFont;
 }

 void destroyItem (ToolItem item) {
 	int index = 0;
 	while (index < itemCount) {
 		if (items [index] == item) break;
 		index++;
 	}
 	if (index == itemCount) return;
 	System.arraycopy (items, index + 1, items, index, --itemCount - index);
 	items [itemCount] = null;
 }

 void drawWidget (int control) {
 	drawBackground (handle, background);
 }

 public ToolItem getItem (int index) {
 	checkWidget();
 	if (0 <= index && index < itemCount) return items [index];
 	error (SWT.ERROR_INVALID_RANGE);
 	return null;
 }

 public ToolItem getItem (Point pt) {
 	checkWidget();
 	if (pt == null) error (SWT.ERROR_NULL_ARGUMENT);
 	for (int i=0; i<itemCount; i++) {
 		Rectangle rect = items [i].getBounds ();
 		if (rect.contains (pt)) return items [i];
 	}
 	return null;
 }

 public int getItemCount () {
 	checkWidget();
 	return itemCount;
 }

 public ToolItem [] getItems () {
 	checkWidget();
 	ToolItem [] result = new ToolItem [itemCount];
 	System.arraycopy (items, 0, result, 0, itemCount);
 	return result;
 }

 public int getRowCount () {
 	checkWidget();
 	Rectangle rect = getClientArea ();
 	return layout (rect.width, rect.height, false) [0];
 }

 public int indexOf (ToolItem item) {
 	checkWidget();
 	if (item == null) error (SWT.ERROR_NULL_ARGUMENT);
 	if (item.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
 	for (int i=0; i<itemCount; i++) {
 		if (items [i] == item) return i;
 	}
 	return -1;
 }

 int [] layoutHorizontal (int width, int height, boolean resize) {
 	int xSpacing = 0, ySpacing = 2;
 	int marginWidth = 0, marginHeight = 0;
 	int x = marginWidth, y = marginHeight;
 	int maxHeight = 0, maxX = 0, rows = 1;
 	boolean wrap = (style & SWT.WRAP) != 0;
 	int itemHeight = 0;
 	for (int i=0; i<itemCount; i++) {
 		Rectangle rect = items [i].getBounds ();
 		itemHeight = Math.max (itemHeight, rect.height);
 	}
 	for (int i=0; i<itemCount; i++) {
 		ToolItem item = items [i];
 		Rectangle rect = item.getBounds ();
 		if (wrap && i != 0 && x + rect.width > width) {
 			rows++;
 			x = marginWidth;
 			y += ySpacing + maxHeight;
 			maxHeight = 0;
 		}
 		maxHeight = Math.max (maxHeight, rect.height);
 		if (resize) {
 			item.setBounds (x, y, rect.width, itemHeight);
 		}
 		x += xSpacing + rect.width;
 		maxX = Math.max (maxX, x);
 	}
 	return new int [] {rows, maxX, y + maxHeight};
 }

 int [] layoutVertical (int width, int height, boolean resize) {
 	int xSpacing = 2, ySpacing = 0;
 	int marginWidth = 0, marginHeight = 0;
 	int x = marginWidth, y = marginHeight;
 	int maxWidth = 0, maxY = 0, cols = 1;
 	boolean wrap = (style & SWT.WRAP) != 0;
 	int itemWidth = 0;
 	for (int i=0; i<itemCount; i++) {
 		Rectangle rect = items [i].getBounds ();
 		itemWidth = Math.max (itemWidth, rect.width);
 	}
 	for (int i=0; i<itemCount; i++) {
 		ToolItem item = items [i];
 		Rectangle rect = item.getBounds ();
 		if (wrap && i != 0 && y + rect.height > height) {
 			cols++;
 			x += xSpacing + maxWidth;
 			y = marginHeight;
 			maxWidth = 0;
 		}
 		maxWidth = Math.max (maxWidth, rect.width);
 		if (resize) {
 			item.setBounds (x, y, itemWidth, rect.height);
 		}
 		y += ySpacing + rect.height;
 		maxY = Math.max (maxY, y);
 	}
 	return new int [] {cols, x + maxWidth, maxY};
 }

 int [] layout (int nWidth, int nHeight, boolean resize) {
 	if ((style & SWT.VERTICAL) != 0) {
 		return layoutVertical (nWidth, nHeight, resize);
 	} else {
 		return layoutHorizontal (nWidth, nHeight, resize);
 	}
 }

 void relayout () {
 	if (drawCount > 0) return;
 	Rectangle rect = getClientArea ();
 	layout (rect.width, rect.height, true);
 }

 void relayout (int width, int height) {
 	if (drawCount > 0) return;
 	layout (width, height, true);
 }

 void releaseWidget () {
 	for (int i=0; i<itemCount; i++) {
 		ToolItem item = items [i];
 		if (!item.isDisposed ()) item.releaseResources ();
 	}
 	items = null;
 	super.releaseWidget ();
 }

 int setBounds (int control, int x, int y, int width, int height, boolean move, boolean resize, boolean events) {
 	int result = super.setBounds (control, x, y, width, height, move, resize, events);
 	if ((result & RESIZED) != 0) {
 		Rectangle rect = getClientArea ();
 		relayout (rect.width, rect.height);
 	}
 	return result;
 }

 void setFontStyle (Font font) {
 	super.setFontStyle (font);
 	for (int i=0; i<itemCount; i++) {
 		ToolItem item = items [i];
 		item.setFontStyle (font);
 		Point size = item.computeSize ();
 		item.setSize (size.x, size.y, false);
 	}
 	relayout ();
 }

 public void setRedraw (boolean redraw) {
 	checkWidget();
 	super.setRedraw (redraw);
 	if (redraw && drawCount == 0) relayout();
 }

 }
	package org.eclipse.swt.widgets;

	/*
	* Copyright (c) 2000, 2002 IBM Corp. All rights reserved.
	* This file is made available under the terms of the Common Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/cpl-v10.html
	*/

	import org.eclipse.swt.internal.carbon.OS;

	import org.eclipse.swt.*;
	import org.eclipse.swt.graphics.*;

	public class ToolBar extends Composite {
	int itemCount;
	ToolItem [] items;


	public ToolBar (Composite parent, int style) {
	super (parent, checkStyle (style));

	/*
	* Ensure that either of HORIZONTAL or VERTICAL is set.
	* NOTE: HORIZONTAL and VERTICAL have the same values
	* as H_SCROLL and V_SCROLL so it is necessary to first
	* clear these bits to avoid scroll bars and then reset
	* the bits using the original style supplied by the
	* programmer.
	*/
	if ((style & SWT.VERTICAL) != 0) {
	this.style \|= SWT.VERTICAL;
	} else {
	this.style \|= SWT.HORIZONTAL;
	}
	}

	static int checkStyle (int style) {
	/*
	* Even though it is legal to create this widget
	* with scroll bars, they serve no useful purpose
	* because they do not automatically scroll the
	* widget's client area. The fix is to clear
	* the SWT style.
	*/
	return style & ~(SWT.H_SCROLL \| SWT.V_SCROLL);
	}

	protected void checkSubclass () {
	if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
	}

	public Point computeSize (int wHint, int hHint, boolean changed) {
	checkWidget();
	int width = wHint, height = hHint;
	if (wHint == SWT.DEFAULT) width = 0x7FFFFFFF;
	if (hHint == SWT.DEFAULT) height = 0x7FFFFFFF;
	int [] result = layout (width, height, false);
	Point extent = new Point (result [1], result [2]);
	if (wHint != SWT.DEFAULT) extent.x = wHint;
	if (hHint != SWT.DEFAULT) extent.y = hHint;
	return extent;
	}

	void createHandle () {
	state \|= GRAB;
	super.createHandle (parent.handle);
	}

	void createItem (ToolItem item, int index) {
	if (!(0 <= index && index <= itemCount)) error (SWT.ERROR_INVALID_RANGE);
	if (itemCount == items.length) {
	ToolItem [] newItems = new ToolItem [itemCount + 4];
	System.arraycopy (items, 0, newItems, 0, items.length);
	items = newItems;
	}
	item.createWidget ();
	System.arraycopy (items, index, items, index + 1, itemCount++ - index);
	items [index] = item;
	if (parent.font != null) item.setFontStyle (parent.font);
	}

	void createWidget () {
	super.createWidget ();
	items = new ToolItem [4];
	itemCount = 0;
	}

	int defaultThemeFont () {
	return OS.kThemeToolbarFont;
	}

	void destroyItem (ToolItem item) {
	int index = 0;
	while (index < itemCount) {
	if (items [index] == item) break;
	index++;
	}
	if (index == itemCount) return;
	System.arraycopy (items, index + 1, items, index, --itemCount - index);
	items [itemCount] = null;
	}

	void drawWidget (int control) {
	drawBackground (handle, background);
	}

	public ToolItem getItem (int index) {
	checkWidget();
	if (0 <= index && index < itemCount) return items [index];
	error (SWT.ERROR_INVALID_RANGE);
	return null;
	}

	public ToolItem getItem (Point pt) {
	checkWidget();
	if (pt == null) error (SWT.ERROR_NULL_ARGUMENT);
	for (int i=0; i<itemCount; i++) {
	Rectangle rect = items [i].getBounds ();
	if (rect.contains (pt)) return items [i];
	}
	return null;
	}

	public int getItemCount () {
	checkWidget();
	return itemCount;
	}

	public ToolItem [] getItems () {
	checkWidget();
	ToolItem [] result = new ToolItem [itemCount];
	System.arraycopy (items, 0, result, 0, itemCount);
	return result;
	}

	public int getRowCount () {
	checkWidget();
	Rectangle rect = getClientArea ();
	return layout (rect.width, rect.height, false) [0];
	}

	public int indexOf (ToolItem item) {
	checkWidget();
	if (item == null) error (SWT.ERROR_NULL_ARGUMENT);
	if (item.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
	for (int i=0; i<itemCount; i++) {
	if (items [i] == item) return i;
	}
	return -1;
	}

	int [] layoutHorizontal (int width, int height, boolean resize) {
	int xSpacing = 0, ySpacing = 2;
	int marginWidth = 0, marginHeight = 0;
	int x = marginWidth, y = marginHeight;
	int maxHeight = 0, maxX = 0, rows = 1;
	boolean wrap = (style & SWT.WRAP) != 0;
	int itemHeight = 0;
	for (int i=0; i<itemCount; i++) {
	Rectangle rect = items [i].getBounds ();
	itemHeight = Math.max (itemHeight, rect.height);
	}
	for (int i=0; i<itemCount; i++) {
	ToolItem item = items [i];
	Rectangle rect = item.getBounds ();
	if (wrap && i != 0 && x + rect.width > width) {
	rows++;
	x = marginWidth;
	y += ySpacing + maxHeight;
	maxHeight = 0;
	}
	maxHeight = Math.max (maxHeight, rect.height);
	if (resize) {
	item.setBounds (x, y, rect.width, itemHeight);
	}
	x += xSpacing + rect.width;
	maxX = Math.max (maxX, x);
	}
	return new int [] {rows, maxX, y + maxHeight};
	}

	int [] layoutVertical (int width, int height, boolean resize) {
	int xSpacing = 2, ySpacing = 0;
	int marginWidth = 0, marginHeight = 0;
	int x = marginWidth, y = marginHeight;
	int maxWidth = 0, maxY = 0, cols = 1;
	boolean wrap = (style & SWT.WRAP) != 0;
	int itemWidth = 0;
	for (int i=0; i<itemCount; i++) {
	Rectangle rect = items [i].getBounds ();
	itemWidth = Math.max (itemWidth, rect.width);
	}
	for (int i=0; i<itemCount; i++) {
	ToolItem item = items [i];
	Rectangle rect = item.getBounds ();
	if (wrap && i != 0 && y + rect.height > height) {
	cols++;
	x += xSpacing + maxWidth;
	y = marginHeight;
	maxWidth = 0;
	}
	maxWidth = Math.max (maxWidth, rect.width);
	if (resize) {
	item.setBounds (x, y, itemWidth, rect.height);
	}
	y += ySpacing + rect.height;
	maxY = Math.max (maxY, y);
	}
	return new int [] {cols, x + maxWidth, maxY};
	}

	int [] layout (int nWidth, int nHeight, boolean resize) {
	if ((style & SWT.VERTICAL) != 0) {
	return layoutVertical (nWidth, nHeight, resize);
	} else {
	return layoutHorizontal (nWidth, nHeight, resize);
	}
	}

	void relayout () {
	if (drawCount > 0) return;
	Rectangle rect = getClientArea ();
	layout (rect.width, rect.height, true);
	}

	void relayout (int width, int height) {
	if (drawCount > 0) return;
	layout (width, height, true);
	}

	void releaseWidget () {
	for (int i=0; i<itemCount; i++) {
	ToolItem item = items [i];
	if (!item.isDisposed ()) item.releaseResources ();
	}
	items = null;
	super.releaseWidget ();
	}

	int setBounds (int control, int x, int y, int width, int height, boolean move, boolean resize, boolean events) {
	int result = super.setBounds (control, x, y, width, height, move, resize, events);
	if ((result & RESIZED) != 0) {
	Rectangle rect = getClientArea ();
	relayout (rect.width, rect.height);
	}
	return result;
	}

	void setFontStyle (Font font) {
	super.setFontStyle (font);
	for (int i=0; i<itemCount; i++) {
	ToolItem item = items [i];
	item.setFontStyle (font);
	Point size = item.computeSize ();
	item.setSize (size.x, size.y, false);
	}
	relayout ();
	}

	public void setRedraw (boolean redraw) {
	checkWidget();
	super.setRedraw (redraw);
	if (redraw && drawCount == 0) relayout();
	}

	}