bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/Composite.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.internal.carbon.Rect;

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

 public class Composite extends Scrollable {
 	Layout layout;
 	Control[] tabList;

 Composite () {
 	/* Do nothing */
 }

 public Composite (Composite parent, int style) {
 	super (parent, style);
 }

 Control [] _getChildren () {
 	short [] count = new short [1];
 	OS.CountSubControls (handle, count);
 	if (count [0] == 0) return new Control [0];
 	Control [] children = new Control [count [0]];
 	int [] outControl= new int [1];
 	int i = 0, j = 0;
 	while (i < count [0]) {
 		int status = OS.GetIndexedSubControl (handle, (short)(i+1), outControl);
 		if (status == OS.noErr) {
 			Widget widget = WidgetTable.get (outControl [0]);
 			if (widget != null && widget != this) {
 				if (widget instanceof Control) {
 					children [j++] = (Control) widget;
 				}
 			}
 		}
 		i++;
 	}
 	if (j == count [0]) return children;
 	Control [] newChildren = new Control [j];
 	System.arraycopy (children, 0, newChildren, 0, j);
 	return newChildren;
 }

 Control [] _getTabList () {
 	if (tabList == null) return null;
 	int count = 0;
 	for (int i=0; i<tabList.length; i++) {
 		if (!tabList [i].isDisposed ()) count++;
 	}
 	if (count == tabList.length) return tabList;
 	Control [] newList = new Control [count];
 	int index = 0;
 	for (int i=0; i<tabList.length; i++) {
 		if (!tabList [i].isDisposed ()) {
 			newList [index++] = tabList [i];
 		}
 	}
 	tabList = newList;
 	return tabList;
 }

 public Point computeSize (int wHint, int hHint, boolean changed) {
 	checkWidget();
 	Point size;
 	if (layout != null) {
 		if ((wHint == SWT.DEFAULT) || (hHint == SWT.DEFAULT)) {
 			size = layout.computeSize (this, wHint, hHint, changed);
 		} else {
 			size = new Point (wHint, hHint);
 		}
 	} else {
 		size = minimumSize ();
 	}
 	if (size.x == 0) size.x = DEFAULT_WIDTH;
 	if (size.y == 0) size.y = DEFAULT_HEIGHT;
 	if (wHint != SWT.DEFAULT) size.x = wHint;
 	if (hHint != SWT.DEFAULT) size.y = hHint;
 	Rectangle trim = computeTrim (0, 0, size.x, size.y);
 	return new Point (trim.width, trim.height);
 }

 protected void checkSubclass () {
 	/* Do nothing - Subclassing is allowed */
 }

 Control [] computeTabList () {
 	Control result [] = super.computeTabList ();
 	if (result.length == 0) return result;
 	Control [] list = tabList != null ? _getTabList () : _getChildren ();
 	for (int i=0; i<list.length; i++) {
 		Control child = list [i];
 		Control [] childList = child.computeTabList ();
 		if (childList.length != 0) {
 			Control [] newResult = new Control [result.length + childList.length];
 			System.arraycopy (result, 0, newResult, 0, result.length);
 			System.arraycopy (childList, 0, newResult, result.length, childList.length);
 			result = newResult;
 		}
 	}
 	return result;
 }

 void createHandle () {
 	state |= CANVAS | GRAB;
 	if ((style & (SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL)) != 0) {
 		createScrolledHandle (parent.handle);
 	} else {
 		createHandle (parent.handle);
 	}
 }

 void createHandle (int parentHandle) {
 	int features = OS.kControlSupportsEmbedding | OS.kControlSupportsFocus | OS.kControlGetsFocusOnClick;
 	int [] outControl = new int [1];
 	int window = OS.GetControlOwner (parentHandle);
 	OS.CreateUserPaneControl (window, null, features, outControl);
 	if (outControl [0] == 0) error (SWT.ERROR_NO_HANDLES);
 	handle = outControl [0];
 }

 void createScrolledHandle (int parentHandle) {
 	int features = OS.kControlSupportsEmbedding;
 	int [] outControl = new int [1];
 	int window = OS.GetControlOwner (parentHandle);
 	OS.CreateUserPaneControl (window, null, features, outControl);
 	if (outControl [0] == 0) error (SWT.ERROR_NO_HANDLES);
 	scrolledHandle = outControl [0];
 	outControl [0] = 0;
 	features |= OS.kControlSupportsFocus | OS.kControlGetsFocusOnClick;
 	OS.CreateUserPaneControl (window, null, features, outControl);
 	if (outControl [0] == 0) error (SWT.ERROR_NO_HANDLES);
 	handle = outControl [0];
 }

 void drawWidget (int control) {
 	if ((state & CANVAS) != 0) {
 		if (control == scrolledHandle) {
 			Rect rect = new Rect ();
 			OS.GetControlBounds (scrolledHandle, rect);
 			OS.EraseRect (rect);
 			Rect inset = inset ();
 			rect.left += inset.left;
 			rect.top += inset.top;
 			rect.right -= inset.right;
 			rect.bottom -= inset.bottom;
 			boolean drawFocus = (style & SWT.NO_FOCUS) == 0 && hooksKeys ();
 			boolean drawBorder = hasBorder ();
 			int state = OS.IsControlActive (handle) ? OS.kThemeStateActive : OS.kThemeStateInactive;
 			if (hasFocus ()) {
 				if (drawBorder) OS.DrawThemeEditTextFrame (rect, state);
 				if (drawFocus) OS.DrawThemeFocusRect (rect, true);
 			} else {
 				if (drawFocus) OS.DrawThemeFocusRect (rect, false);
 				if (drawBorder) OS.DrawThemeEditTextFrame (rect, state);
 			}
 		} else {
 			if ((style & SWT.NO_BACKGROUND) != 0) return;
 			drawBackground (control, background);
 		}
 	} else {
 		super.drawWidget (control);
 	}
 }

 void enableWidget (boolean enabled) {
 	//NOT DONE - take into account current scroll bar state
 	if ((state & CANVAS) != 0) {
 		if (horizontalBar != null) horizontalBar.enableWidget (enabled);
 		if (verticalBar != null) verticalBar.enableWidget (enabled);
 		return;
 	}
 	super.enableWidget (enabled);
 }

 public Control [] getChildren () {
 	checkWidget();
 	return _getChildren ();
 }

 int getChildrenCount () {
 	/*
 	* NOTE:  The current implementation will count
 	* non-registered children.
 	*/
 	short [] count = new short [1];
 	OS.CountSubControls (handle, count);
 	return count [0];
 }

 public Layout getLayout () {
 	checkWidget();
 	return layout;
 }

 public Control [] getTabList () {
 	checkWidget ();
 	Control [] tabList = _getTabList ();
 	if (tabList == null) {
 		int count = 0;
 		Control [] list =_getChildren ();
 		for (int i=0; i<list.length; i++) {
 			if (list [i].isTabGroup ()) count++;
 		}
 		tabList = new Control [count];
 		int index = 0;
 		for (int i=0; i<list.length; i++) {
 			if (list [i].isTabGroup ()) {
 				tabList [index++] = list [i];
 			}
 		}
 	}
 	return tabList;
 }

 int kEventControlClick (int nextHandler, int theEvent, int userData) {
 	int result = super.kEventControlClick (nextHandler, theEvent, userData);
 	if (result == OS.noErr) return result;
 	if ((state & CANVAS) != 0) {
 		if (!isEnabled ()) return result;
 		if ((style & SWT.NO_FOCUS) == 0 && hooksKeys ()) {
 			int [] theControl = new int [1];
 			int window = OS.GetControlOwner (handle);
 			OS.GetKeyboardFocus (window, theControl);
 			if (handle != theControl [0]) {
 				short [] count = new short [1];
 				OS.CountSubControls (handle, count);
 				if (count [0] == 0) {
 					if (OS.SetKeyboardFocus (window, handle, (short) OS.kControlFocusNextPart) == OS.noErr) {
 						return OS.noErr;
 					}
 				}
 			}
 		}
 	}
 	return result;
 }

 int kEventControlSetFocusPart (int nextHandler, int theEvent, int userData) {
 	int result = super.kEventControlSetFocusPart (nextHandler, theEvent, userData);
 	if (result == OS.noErr) return result;
 	if (((state & CANVAS) != 0 && (style & SWT.NO_FOCUS) == 0 && hooksKeys ())) {
 		if (scrolledHandle != 0) redrawWidget (scrolledHandle);
 		return OS.noErr;
 	}
 	return result;
 }

 boolean hooksKeys () {
 	return hooks (SWT.KeyDown) || hooks (SWT.KeyUp) || hooks (SWT.Traverse);
 }

 public void layout () {
 	checkWidget();
 	layout (true);
 }

 public void layout (boolean changed) {
 	checkWidget();
 	if (layout == null) return;
 	int count = getChildrenCount ();
 	if (count == 0) return;
 	layout.layout (this, changed);
 }

 Point minimumSize () {
 	Control [] children = _getChildren ();
 	int width = 0, height = 0;
 	for (int i=0; i<children.length; i++) {
 		Rectangle rect = children [i].getBounds ();
 		width = Math.max (width, rect.x + rect.width);
 		height = Math.max (height, rect.y + rect.height);
 	}
 	return new Point (width, height);
 }

 void releaseChildren () {
 	Control [] children = _getChildren ();
 	for (int i=0; i<children.length; i++) {
 		Control child = children [i];
 		if (!child.isDisposed ()) child.releaseResources ();
 	}
 }

 void releaseWidget () {
 	releaseChildren ();
 	super.releaseWidget ();
 	layout = null;
 	tabList = null;
 }

 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 (layout != null && (result & RESIZED) != 0) layout.layout (this, false);
 	return result;
 }

 public boolean setFocus () {
 	checkWidget ();
 	if ((style & SWT.NO_FOCUS) != 0) return false;
 	Control [] children = _getChildren ();
 	for (int i= 0; i < children.length; i++) {
 		if (children [i].setFocus ()) return true;
 	}
 	return super.setFocus ();
 }

 public void setLayout (Layout layout) {
 	checkWidget();
 	this.layout = layout;
 }

 public void setTabList (Control [] tabList) {
 	checkWidget ();
 	if (tabList != null) {
 		for (int i=0; i<tabList.length; i++) {
 			Control control = tabList [i];
 			if (control == null) error (SWT.ERROR_INVALID_ARGUMENT);
 			if (control.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT);
 			/*
 			* This code is intentionally commented.
 			* Tab lists are currently only supported
 			* for the direct children of a composite.
 			*/
 //			Shell shell = control.getShell ();
 //			while (control != shell && control != this) {
 //				control = control.parent;
 //			}
 //			if (control != this) error (SWT.ERROR_INVALID_PARENT);
 			if (control.parent != this) error (SWT.ERROR_INVALID_PARENT);
 		}
 		Control [] newList = new Control [tabList.length];
 		System.arraycopy (tabList, 0, newList, 0, tabList.length);
 		tabList = newList;
 	}
 	this.tabList = tabList;
 }

 void setZOrder () {
 	super.setZOrder ();
 	if (scrolledHandle != 0) OS.HIViewAddSubview (scrolledHandle, handle);
 }

 }
	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.internal.carbon.Rect;

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

	public class Composite extends Scrollable {
	Layout layout;
	Control[] tabList;

	Composite () {
	/* Do nothing */
	}

	public Composite (Composite parent, int style) {
	super (parent, style);
	}

	Control [] _getChildren () {
	short [] count = new short [1];
	OS.CountSubControls (handle, count);
	if (count [0] == 0) return new Control [0];
	Control [] children = new Control [count [0]];
	int [] outControl= new int [1];
	int i = 0, j = 0;
	while (i < count [0]) {
	int status = OS.GetIndexedSubControl (handle, (short)(i+1), outControl);
	if (status == OS.noErr) {
	Widget widget = WidgetTable.get (outControl [0]);
	if (widget != null && widget != this) {
	if (widget instanceof Control) {
	children [j++] = (Control) widget;
	}
	}
	}
	i++;
	}
	if (j == count [0]) return children;
	Control [] newChildren = new Control [j];
	System.arraycopy (children, 0, newChildren, 0, j);
	return newChildren;
	}

	Control [] _getTabList () {
	if (tabList == null) return null;
	int count = 0;
	for (int i=0; i<tabList.length; i++) {
	if (!tabList [i].isDisposed ()) count++;
	}
	if (count == tabList.length) return tabList;
	Control [] newList = new Control [count];
	int index = 0;
	for (int i=0; i<tabList.length; i++) {
	if (!tabList [i].isDisposed ()) {
	newList [index++] = tabList [i];
	}
	}
	tabList = newList;
	return tabList;
	}

	public Point computeSize (int wHint, int hHint, boolean changed) {
	checkWidget();
	Point size;
	if (layout != null) {
	if ((wHint == SWT.DEFAULT) \|\| (hHint == SWT.DEFAULT)) {
	size = layout.computeSize (this, wHint, hHint, changed);
	} else {
	size = new Point (wHint, hHint);
	}
	} else {
	size = minimumSize ();
	}
	if (size.x == 0) size.x = DEFAULT_WIDTH;
	if (size.y == 0) size.y = DEFAULT_HEIGHT;
	if (wHint != SWT.DEFAULT) size.x = wHint;
	if (hHint != SWT.DEFAULT) size.y = hHint;
	Rectangle trim = computeTrim (0, 0, size.x, size.y);
	return new Point (trim.width, trim.height);
	}

	protected void checkSubclass () {
	/* Do nothing - Subclassing is allowed */
	}

	Control [] computeTabList () {
	Control result [] = super.computeTabList ();
	if (result.length == 0) return result;
	Control [] list = tabList != null ? _getTabList () : _getChildren ();
	for (int i=0; i<list.length; i++) {
	Control child = list [i];
	Control [] childList = child.computeTabList ();
	if (childList.length != 0) {
	Control [] newResult = new Control [result.length + childList.length];
	System.arraycopy (result, 0, newResult, 0, result.length);
	System.arraycopy (childList, 0, newResult, result.length, childList.length);
	result = newResult;
	}
	}
	return result;
	}

	void createHandle () {
	state \|= CANVAS \| GRAB;
	if ((style & (SWT.BORDER \| SWT.H_SCROLL \| SWT.V_SCROLL)) != 0) {
	createScrolledHandle (parent.handle);
	} else {
	createHandle (parent.handle);
	}
	}

	void createHandle (int parentHandle) {
	int features = OS.kControlSupportsEmbedding \| OS.kControlSupportsFocus \| OS.kControlGetsFocusOnClick;
	int [] outControl = new int [1];
	int window = OS.GetControlOwner (parentHandle);
	OS.CreateUserPaneControl (window, null, features, outControl);
	if (outControl [0] == 0) error (SWT.ERROR_NO_HANDLES);
	handle = outControl [0];
	}

	void createScrolledHandle (int parentHandle) {
	int features = OS.kControlSupportsEmbedding;
	int [] outControl = new int [1];
	int window = OS.GetControlOwner (parentHandle);
	OS.CreateUserPaneControl (window, null, features, outControl);
	if (outControl [0] == 0) error (SWT.ERROR_NO_HANDLES);
	scrolledHandle = outControl [0];
	outControl [0] = 0;
	features \|= OS.kControlSupportsFocus \| OS.kControlGetsFocusOnClick;
	OS.CreateUserPaneControl (window, null, features, outControl);
	if (outControl [0] == 0) error (SWT.ERROR_NO_HANDLES);
	handle = outControl [0];
	}

	void drawWidget (int control) {
	if ((state & CANVAS) != 0) {
	if (control == scrolledHandle) {
	Rect rect = new Rect ();
	OS.GetControlBounds (scrolledHandle, rect);
	OS.EraseRect (rect);
	Rect inset = inset ();
	rect.left += inset.left;
	rect.top += inset.top;
	rect.right -= inset.right;
	rect.bottom -= inset.bottom;
	boolean drawFocus = (style & SWT.NO_FOCUS) == 0 && hooksKeys ();
	boolean drawBorder = hasBorder ();
	int state = OS.IsControlActive (handle) ? OS.kThemeStateActive : OS.kThemeStateInactive;
	if (hasFocus ()) {
	if (drawBorder) OS.DrawThemeEditTextFrame (rect, state);
	if (drawFocus) OS.DrawThemeFocusRect (rect, true);
	} else {
	if (drawFocus) OS.DrawThemeFocusRect (rect, false);
	if (drawBorder) OS.DrawThemeEditTextFrame (rect, state);
	}
	} else {
	if ((style & SWT.NO_BACKGROUND) != 0) return;
	drawBackground (control, background);
	}
	} else {
	super.drawWidget (control);
	}
	}

	void enableWidget (boolean enabled) {
	//NOT DONE - take into account current scroll bar state
	if ((state & CANVAS) != 0) {
	if (horizontalBar != null) horizontalBar.enableWidget (enabled);
	if (verticalBar != null) verticalBar.enableWidget (enabled);
	return;
	}
	super.enableWidget (enabled);
	}

	public Control [] getChildren () {
	checkWidget();
	return _getChildren ();
	}

	int getChildrenCount () {
	/*
	* NOTE: The current implementation will count
	* non-registered children.
	*/
	short [] count = new short [1];
	OS.CountSubControls (handle, count);
	return count [0];
	}

	public Layout getLayout () {
	checkWidget();
	return layout;
	}

	public Control [] getTabList () {
	checkWidget ();
	Control [] tabList = _getTabList ();
	if (tabList == null) {
	int count = 0;
	Control [] list =_getChildren ();
	for (int i=0; i<list.length; i++) {
	if (list [i].isTabGroup ()) count++;
	}
	tabList = new Control [count];
	int index = 0;
	for (int i=0; i<list.length; i++) {
	if (list [i].isTabGroup ()) {
	tabList [index++] = list [i];
	}
	}
	}
	return tabList;
	}

	int kEventControlClick (int nextHandler, int theEvent, int userData) {
	int result = super.kEventControlClick (nextHandler, theEvent, userData);
	if (result == OS.noErr) return result;
	if ((state & CANVAS) != 0) {
	if (!isEnabled ()) return result;
	if ((style & SWT.NO_FOCUS) == 0 && hooksKeys ()) {
	int [] theControl = new int [1];
	int window = OS.GetControlOwner (handle);
	OS.GetKeyboardFocus (window, theControl);
	if (handle != theControl [0]) {
	short [] count = new short [1];
	OS.CountSubControls (handle, count);
	if (count [0] == 0) {
	if (OS.SetKeyboardFocus (window, handle, (short) OS.kControlFocusNextPart) == OS.noErr) {
	return OS.noErr;
	}
	}
	}
	}
	}
	return result;
	}

	int kEventControlSetFocusPart (int nextHandler, int theEvent, int userData) {
	int result = super.kEventControlSetFocusPart (nextHandler, theEvent, userData);
	if (result == OS.noErr) return result;
	if (((state & CANVAS) != 0 && (style & SWT.NO_FOCUS) == 0 && hooksKeys ())) {
	if (scrolledHandle != 0) redrawWidget (scrolledHandle);
	return OS.noErr;
	}
	return result;
	}

	boolean hooksKeys () {
	return hooks (SWT.KeyDown) \|\| hooks (SWT.KeyUp) \|\| hooks (SWT.Traverse);
	}

	public void layout () {
	checkWidget();
	layout (true);
	}

	public void layout (boolean changed) {
	checkWidget();
	if (layout == null) return;
	int count = getChildrenCount ();
	if (count == 0) return;
	layout.layout (this, changed);
	}

	Point minimumSize () {
	Control [] children = _getChildren ();
	int width = 0, height = 0;
	for (int i=0; i<children.length; i++) {
	Rectangle rect = children [i].getBounds ();
	width = Math.max (width, rect.x + rect.width);
	height = Math.max (height, rect.y + rect.height);
	}
	return new Point (width, height);
	}

	void releaseChildren () {
	Control [] children = _getChildren ();
	for (int i=0; i<children.length; i++) {
	Control child = children [i];
	if (!child.isDisposed ()) child.releaseResources ();
	}
	}

	void releaseWidget () {
	releaseChildren ();
	super.releaseWidget ();
	layout = null;
	tabList = null;
	}

	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 (layout != null && (result & RESIZED) != 0) layout.layout (this, false);
	return result;
	}

	public boolean setFocus () {
	checkWidget ();
	if ((style & SWT.NO_FOCUS) != 0) return false;
	Control [] children = _getChildren ();
	for (int i= 0; i < children.length; i++) {
	if (children [i].setFocus ()) return true;
	}
	return super.setFocus ();
	}

	public void setLayout (Layout layout) {
	checkWidget();
	this.layout = layout;
	}

	public void setTabList (Control [] tabList) {
	checkWidget ();
	if (tabList != null) {
	for (int i=0; i<tabList.length; i++) {
	Control control = tabList [i];
	if (control == null) error (SWT.ERROR_INVALID_ARGUMENT);
	if (control.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT);
	/*
	* This code is intentionally commented.
	* Tab lists are currently only supported
	* for the direct children of a composite.
	*/
	// Shell shell = control.getShell ();
	// while (control != shell && control != this) {
	// control = control.parent;
	// }
	// if (control != this) error (SWT.ERROR_INVALID_PARENT);
	if (control.parent != this) error (SWT.ERROR_INVALID_PARENT);
	}
	Control [] newList = new Control [tabList.length];
	System.arraycopy (tabList, 0, newList, 0, tabList.length);
	tabList = newList;
	}
	this.tabList = tabList;
	}

	void setZOrder () {
	super.setZOrder ();
	if (scrolledHandle != 0) OS.HIViewAddSubview (scrolledHandle, handle);
	}

	}