bundles/org.eclipse.swt/Eclipse SWT Theme/win32/org/eclipse/swt/internal/theme/ScrollBarDrawData.java - platform/eclipse.platform.swt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2012 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.internal.theme;

 import org.eclipse.swt.*;
 import org.eclipse.swt.graphics.*;
 import org.eclipse.swt.internal.win32.*;

 public class ScrollBarDrawData extends RangeDrawData {
 	public int thumb;
 	public int increment;
 	public int pageIncrement;

 public ScrollBarDrawData() {
 	state = new int[6];
 }

 @Override
 void draw(Theme theme, GC gc, Rectangle bounds) {
 	if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) {
 		long /*int*/ hTheme = OS.OpenThemeData(0, getClassId());
 		RECT rect = new RECT ();
 		if ((style & SWT.VERTICAL) != 0) {
 			int width = OS.GetThemeSysSize(hTheme, OS.SM_CXVSCROLL);
 			rect.left = bounds.x;
 			rect.right = rect.left + bounds.width;
 			rect.top = bounds.y;
 			rect.bottom = rect.top + width;
 			int[] part = getPartId(DrawData.SCROLLBAR_UP_ARROW);
 			OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
 			rect.bottom = bounds.y + bounds.height;
 			rect.top = rect.bottom - width;
 			part = getPartId(DrawData.SCROLLBAR_DOWN_ARROW);
 			OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
 			int totalWidth = bounds.height - 2 * width;
 			int thumbWidth = Math.max(width / 2, (totalWidth * thumb) / Math.max(1, (maximum - minimum)));//BAD
 			int thumbPos = bounds.y + width + Math.max(0, (totalWidth * selection) / Math.max(1, (maximum - minimum)));
 			rect.top = bounds.y + width;
 			rect.bottom = thumbPos;
 			part = getPartId(DrawData.SCROLLBAR_UP_TRACK);
 			OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
 			rect.top = rect.bottom;
 			rect.bottom = rect.top + thumbWidth;
 			part = getPartId(DrawData.SCROLLBAR_THUMB);
 			OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
 			OS.DrawThemeBackground (hTheme, gc.handle, OS.SBP_GRIPPERVERT, part[1], rect, null);
 			rect.top = rect.bottom;
 			rect.bottom = bounds.y + bounds.height - width;
 			part = getPartId(DrawData.SCROLLBAR_DOWN_TRACK);
 			OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
 		} else {
 			//TODO - why SM_CXHSCROLL = 0?
 			int height = OS.GetThemeSysSize(hTheme, OS.SM_CXVSCROLL);
 			rect.top = bounds.y;
 			rect.bottom = rect.top + bounds.height;
 			rect.left = bounds.x;
 			rect.right = rect.left + height;
 			int[] part = getPartId(DrawData.SCROLLBAR_LEFT_ARROW);
 			OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
 			rect.right = bounds.x + bounds.width;
 			rect.left = rect.right - height;
 			part = getPartId(DrawData.SCROLLBAR_RIGHT_ARROW);
 			OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
 			int totalWidth = bounds.width - 2 * height;
 			int thumbWidth = Math.max(height / 2, (totalWidth * thumb) / (maximum - minimum));//BAD
 			int thumbPos = bounds.x + height + Math.max(0, (totalWidth * selection) / Math.max(1, (maximum - minimum)));
 			rect.left = bounds.x + height;
 			rect.right = thumbPos;
 			part = getPartId(DrawData.SCROLLBAR_UP_TRACK);
 			OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
 			rect.left = rect.right;
 			rect.right = rect.left + thumbWidth;
 			part = getPartId(DrawData.SCROLLBAR_THUMB);
 			OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
 			OS.DrawThemeBackground (hTheme, gc.handle, OS.SBP_GRIPPERHORZ, part[1], rect, null);
 			rect.left = rect.right;
 			rect.right = bounds.x + bounds.width - height;
 			part = getPartId(DrawData.SCROLLBAR_DOWN_TRACK);
 			OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
 		}
 		OS.CloseThemeData (hTheme);
 	}
 }

 @Override
 char[] getClassId() {
 	return SCROLLBAR;
 }

 @Override
 int[] getPartId(int part) {
 	int iPartId = 0, iStateId = 0;
 	int state = this.state[part];
 	switch (part) {
 		case DrawData.SCROLLBAR_UP_ARROW:
 			iPartId = OS.SBP_ARROWBTN;
 			if ((style & SWT.VERTICAL) != 0) {
 				iStateId = OS.ABS_UPNORMAL;
 				if ((state & DrawData.HOT) != 0) iStateId = OS.ABS_UPHOT;
 				if ((state & DrawData.PRESSED) != 0) iStateId = OS.ABS_UPPRESSED;
 				if ((state & DrawData.DISABLED) != 0) iStateId = OS.ABS_UPDISABLED;
 			} else {
 				iStateId = OS.ABS_LEFTNORMAL;
 				if ((state & DrawData.HOT) != 0) iStateId = OS.ABS_LEFTHOT;
 				if ((state & DrawData.PRESSED) != 0) iStateId = OS.ABS_LEFTPRESSED;
 				if ((state & DrawData.DISABLED) != 0) iStateId = OS.ABS_LEFTDISABLED;
 			}
 			break;
 		case DrawData.SCROLLBAR_DOWN_ARROW:
 			iPartId = OS.SBP_ARROWBTN;
 			if ((style & SWT.VERTICAL) != 0) {
 				iStateId = OS.ABS_DOWNNORMAL;
 				if ((state & DrawData.HOT) != 0) iStateId = OS.ABS_DOWNHOT;
 				if ((state & DrawData.PRESSED) != 0) iStateId = OS.ABS_DOWNPRESSED;
 				if ((state & DrawData.DISABLED) != 0) iStateId = OS.ABS_DOWNDISABLED;
 			} else {
 				iStateId = OS.ABS_RIGHTNORMAL;
 				if ((state & DrawData.HOT) != 0) iStateId = OS.ABS_RIGHTHOT;
 				if ((state & DrawData.PRESSED) != 0) iStateId = OS.ABS_RIGHTPRESSED;
 				if ((state & DrawData.DISABLED) != 0) iStateId = OS.ABS_RIGHTDISABLED;
 			}
 			break;
 		case DrawData.WIDGET_WHOLE:
 		case DrawData.SCROLLBAR_THUMB:
 			if ((style & SWT.VERTICAL) != 0) {
 				iPartId = OS.SBP_THUMBBTNVERT;
 			} else {
 				iPartId = OS.SBP_THUMBBTNHORZ;
 			}
 			break;
 		case DrawData.SCROLLBAR_UP_TRACK:
 			if ((style & SWT.VERTICAL) != 0) {
 				iPartId = OS.SBP_UPPERTRACKVERT;
 			} else {
 				iPartId = OS.SBP_UPPERTRACKHORZ;
 			}
 			break;
 		case DrawData.SCROLLBAR_DOWN_TRACK:
 			if ((style & SWT.VERTICAL) != 0) {
 				iPartId = OS.SBP_LOWERTRACKVERT;
 			} else {
 				iPartId = OS.SBP_LOWERTRACKHORZ;
 			}
 			break;
 	}
 	if (part != DrawData.SCROLLBAR_DOWN_ARROW && part != DrawData.SCROLLBAR_UP_ARROW) {
 		iStateId = OS.SCRBS_NORMAL;
 		if ((state & DrawData.HOT) != 0) iStateId = OS.SCRBS_HOT;
 		if ((state & DrawData.PRESSED) != 0) iStateId = OS.SCRBS_PRESSED;
 		if ((state & DrawData.DISABLED) != 0) iStateId = OS.SCRBS_DISABLED;
 	}
 	return new int[]{iPartId, iStateId};
 }

 @Override
 Rectangle getBounds(int part, Rectangle bounds) {
 	if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) {
 		long /*int*/ hTheme = OS.OpenThemeData(0, getClassId());
 		if ((style & SWT.VERTICAL) != 0) {
 			int width = OS.GetThemeSysSize(hTheme, OS.SM_CXVSCROLL);
 			int totalWidth = bounds.height - 2 * width;
 			int thumbWidth = Math.max(width / 2, (totalWidth * thumb) / Math.max(1, (maximum - minimum)));//BAD
 			int thumbPos = bounds.y + width + Math.max(0, (totalWidth * selection) / Math.max(1, (maximum - minimum)));
 			switch (part) {
 				case DrawData.SCROLLBAR_DOWN_ARROW:
 					return new Rectangle(bounds.x, bounds.y + bounds.height - width, bounds.width, width);
 				case DrawData.SCROLLBAR_UP_ARROW:
 					return new Rectangle(bounds.x, bounds.y, bounds.width, width);
 				case DrawData.SCROLLBAR_UP_TRACK:
 					return new Rectangle(bounds.x, bounds.y + width, bounds.width, thumbPos - bounds.y - width);
 				case DrawData.SCROLLBAR_THUMB:
 					return new Rectangle(bounds.x, thumbPos, bounds.width, thumbWidth);
 				case DrawData.SCROLLBAR_DOWN_TRACK:
 					return new Rectangle(bounds.x, thumbPos + thumbWidth, bounds.width, bounds.y + bounds.height - width - thumbPos - thumbWidth);
 			}
 		} else {

 		}
 		OS.CloseThemeData (hTheme);
 	}
 	return super.getBounds(part, bounds);
 }

 @Override
 int getSelection(Point position, Rectangle bounds) {
 	if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) {
 		long /*int*/ hTheme = OS.OpenThemeData(0, getClassId());
 		if ((style & SWT.VERTICAL) != 0) {
 			int width = OS.GetThemeSysSize(hTheme, OS.SM_CXVSCROLL);
 			int totalWidth = bounds.height - 2 * width;
 			int thumbPos = bounds.y + width + Math.max(0, (totalWidth * selection) / Math.max(1, (maximum - minimum)));
 			thumbPos += position.y;
 			int selection = ((thumbPos - bounds.y - width) * (maximum - minimum)) / totalWidth;
 			return Math.max(0, Math.min(selection, maximum - thumb));
 		} else {

 		}
 		OS.CloseThemeData (hTheme);
 	}
 	return 0;
 }

 @Override
 int hit(Theme theme, Point position, Rectangle bounds) {
 	if (!(OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ())) return -1;
 	long /*int*/ hTheme = OS.OpenThemeData(0, getClassId());
 	//TODO - should we take a GC?
 	int hDC = 0;
 	RECT rect = new RECT ();
 	POINT pt = new POINT();
 	pt.x = position.x;
 	pt.y = position.y;
 	short[] code = new short[1];
 	try {
 		if ((style & SWT.VERTICAL) != 0) {
 			int width = OS.GetThemeSysSize(hTheme, OS.SM_CXVSCROLL);
 			rect.left = bounds.x;
 			rect.right = rect.left + bounds.width;
 			rect.top = bounds.y;
 			rect.bottom = rect.top + width;
 			int[] part = getPartId(DrawData.SCROLLBAR_UP_ARROW);
 			OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
 			if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_UP_ARROW;
 			rect.bottom = bounds.y + bounds.height;
 			rect.top = rect.bottom - width;
 			part = getPartId(DrawData.SCROLLBAR_DOWN_ARROW);
 			OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
 			if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_DOWN_ARROW;
 			int totalWidth = bounds.height - 2 * width;
 			int thumbWidth = Math.max(width / 2, (totalWidth * thumb) / Math.max(1, (maximum - minimum)));//BAD
 			int thumbPos = bounds.y + width + Math.max(0, (totalWidth * selection) / Math.max(1, (maximum - minimum)));
 			rect.top = bounds.y + width;
 			rect.bottom = thumbPos;
 			part = getPartId(DrawData.SCROLLBAR_THUMB);
 			OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
 			if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_UP_TRACK;
 			rect.top = rect.bottom;
 			rect.bottom = rect.top + thumbWidth;
 			part = getPartId(DrawData.SCROLLBAR_UP_TRACK);
 			OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
 			if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_THUMB;
 			rect.top = rect.bottom;
 			rect.bottom = bounds.y + bounds.height - width;
 			part = getPartId(DrawData.SCROLLBAR_DOWN_TRACK);
 			OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
 			if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_DOWN_TRACK;
 		} else {
 			int height = OS.GetThemeSysSize(hTheme, OS.SM_CXVSCROLL);//BAD - why SM_CXHSCROLL = 0?
 			rect.top = bounds.y;
 			rect.bottom = rect.top + bounds.height;
 			rect.left = bounds.x;
 			rect.right = rect.left + height;
 			int[] part = getPartId(DrawData.SCROLLBAR_LEFT_ARROW);
 			OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
 			if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_UP_ARROW;
 			rect.right = bounds.x + bounds.width;
 			rect.left = rect.right - height;
 			part = getPartId(DrawData.SCROLLBAR_RIGHT_ARROW);
 			OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
 			if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_DOWN_ARROW;
 			int totalWidth = bounds.width - 2 * height;
 			int thumbWidth = Math.max(height / 2, (totalWidth * thumb) / (maximum - minimum));//BAD
 			int thumbPos = bounds.x + height + Math.max(0, (totalWidth * selection) / Math.max(1, (maximum - minimum)));
 			rect.left = bounds.x + height;
 			rect.right = thumbPos;
 			part = getPartId(DrawData.SCROLLBAR_LEFT_TRACK);
 			OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
 			if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_UP_TRACK;
 			rect.left = rect.right;
 			rect.right = rect.left + thumbWidth;
 			part = getPartId(DrawData.SCROLLBAR_THUMB);
 			OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
 			if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_THUMB;
 			rect.left = rect.right;
 			rect.right = bounds.x + bounds.width - height;
 			part = getPartId(DrawData.SCROLLBAR_RIGHT_TRACK);
 			OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
 			if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_DOWN_TRACK;
 		}
 	} finally {
 		OS.CloseThemeData (hTheme);
 	}
 	return DrawData.WIDGET_NOWHERE;
 }

 }
	/*******************************************************************************
	* Copyright (c) 2000, 2012 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.internal.theme;

	import org.eclipse.swt.*;
	import org.eclipse.swt.graphics.*;
	import org.eclipse.swt.internal.win32.*;

	public class ScrollBarDrawData extends RangeDrawData {
	public int thumb;
	public int increment;
	public int pageIncrement;

	public ScrollBarDrawData() {
	state = new int[6];
	}

	@Override
	void draw(Theme theme, GC gc, Rectangle bounds) {
	if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) {
	long /int/ hTheme = OS.OpenThemeData(0, getClassId());
	RECT rect = new RECT ();
	if ((style & SWT.VERTICAL) != 0) {
	int width = OS.GetThemeSysSize(hTheme, OS.SM_CXVSCROLL);
	rect.left = bounds.x;
	rect.right = rect.left + bounds.width;
	rect.top = bounds.y;
	rect.bottom = rect.top + width;
	int[] part = getPartId(DrawData.SCROLLBAR_UP_ARROW);
	OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
	rect.bottom = bounds.y + bounds.height;
	rect.top = rect.bottom - width;
	part = getPartId(DrawData.SCROLLBAR_DOWN_ARROW);
	OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
	int totalWidth = bounds.height - 2 * width;
	int thumbWidth = Math.max(width / 2, (totalWidth * thumb) / Math.max(1, (maximum - minimum)));//BAD
	int thumbPos = bounds.y + width + Math.max(0, (totalWidth * selection) / Math.max(1, (maximum - minimum)));
	rect.top = bounds.y + width;
	rect.bottom = thumbPos;
	part = getPartId(DrawData.SCROLLBAR_UP_TRACK);
	OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
	rect.top = rect.bottom;
	rect.bottom = rect.top + thumbWidth;
	part = getPartId(DrawData.SCROLLBAR_THUMB);
	OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
	OS.DrawThemeBackground (hTheme, gc.handle, OS.SBP_GRIPPERVERT, part[1], rect, null);
	rect.top = rect.bottom;
	rect.bottom = bounds.y + bounds.height - width;
	part = getPartId(DrawData.SCROLLBAR_DOWN_TRACK);
	OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
	} else {
	//TODO - why SM_CXHSCROLL = 0?
	int height = OS.GetThemeSysSize(hTheme, OS.SM_CXVSCROLL);
	rect.top = bounds.y;
	rect.bottom = rect.top + bounds.height;
	rect.left = bounds.x;
	rect.right = rect.left + height;
	int[] part = getPartId(DrawData.SCROLLBAR_LEFT_ARROW);
	OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
	rect.right = bounds.x + bounds.width;
	rect.left = rect.right - height;
	part = getPartId(DrawData.SCROLLBAR_RIGHT_ARROW);
	OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
	int totalWidth = bounds.width - 2 * height;
	int thumbWidth = Math.max(height / 2, (totalWidth * thumb) / (maximum - minimum));//BAD
	int thumbPos = bounds.x + height + Math.max(0, (totalWidth * selection) / Math.max(1, (maximum - minimum)));
	rect.left = bounds.x + height;
	rect.right = thumbPos;
	part = getPartId(DrawData.SCROLLBAR_UP_TRACK);
	OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
	rect.left = rect.right;
	rect.right = rect.left + thumbWidth;
	part = getPartId(DrawData.SCROLLBAR_THUMB);
	OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
	OS.DrawThemeBackground (hTheme, gc.handle, OS.SBP_GRIPPERHORZ, part[1], rect, null);
	rect.left = rect.right;
	rect.right = bounds.x + bounds.width - height;
	part = getPartId(DrawData.SCROLLBAR_DOWN_TRACK);
	OS.DrawThemeBackground (hTheme, gc.handle, part[0], part[1], rect, null);
	}
	OS.CloseThemeData (hTheme);
	}
	}

	@Override
	char[] getClassId() {
	return SCROLLBAR;
	}

	@Override
	int[] getPartId(int part) {
	int iPartId = 0, iStateId = 0;
	int state = this.state[part];
	switch (part) {
	case DrawData.SCROLLBAR_UP_ARROW:
	iPartId = OS.SBP_ARROWBTN;
	if ((style & SWT.VERTICAL) != 0) {
	iStateId = OS.ABS_UPNORMAL;
	if ((state & DrawData.HOT) != 0) iStateId = OS.ABS_UPHOT;
	if ((state & DrawData.PRESSED) != 0) iStateId = OS.ABS_UPPRESSED;
	if ((state & DrawData.DISABLED) != 0) iStateId = OS.ABS_UPDISABLED;
	} else {
	iStateId = OS.ABS_LEFTNORMAL;
	if ((state & DrawData.HOT) != 0) iStateId = OS.ABS_LEFTHOT;
	if ((state & DrawData.PRESSED) != 0) iStateId = OS.ABS_LEFTPRESSED;
	if ((state & DrawData.DISABLED) != 0) iStateId = OS.ABS_LEFTDISABLED;
	}
	break;
	case DrawData.SCROLLBAR_DOWN_ARROW:
	iPartId = OS.SBP_ARROWBTN;
	if ((style & SWT.VERTICAL) != 0) {
	iStateId = OS.ABS_DOWNNORMAL;
	if ((state & DrawData.HOT) != 0) iStateId = OS.ABS_DOWNHOT;
	if ((state & DrawData.PRESSED) != 0) iStateId = OS.ABS_DOWNPRESSED;
	if ((state & DrawData.DISABLED) != 0) iStateId = OS.ABS_DOWNDISABLED;
	} else {
	iStateId = OS.ABS_RIGHTNORMAL;
	if ((state & DrawData.HOT) != 0) iStateId = OS.ABS_RIGHTHOT;
	if ((state & DrawData.PRESSED) != 0) iStateId = OS.ABS_RIGHTPRESSED;
	if ((state & DrawData.DISABLED) != 0) iStateId = OS.ABS_RIGHTDISABLED;
	}
	break;
	case DrawData.WIDGET_WHOLE:
	case DrawData.SCROLLBAR_THUMB:
	if ((style & SWT.VERTICAL) != 0) {
	iPartId = OS.SBP_THUMBBTNVERT;
	} else {
	iPartId = OS.SBP_THUMBBTNHORZ;
	}
	break;
	case DrawData.SCROLLBAR_UP_TRACK:
	if ((style & SWT.VERTICAL) != 0) {
	iPartId = OS.SBP_UPPERTRACKVERT;
	} else {
	iPartId = OS.SBP_UPPERTRACKHORZ;
	}
	break;
	case DrawData.SCROLLBAR_DOWN_TRACK:
	if ((style & SWT.VERTICAL) != 0) {
	iPartId = OS.SBP_LOWERTRACKVERT;
	} else {
	iPartId = OS.SBP_LOWERTRACKHORZ;
	}
	break;
	}
	if (part != DrawData.SCROLLBAR_DOWN_ARROW && part != DrawData.SCROLLBAR_UP_ARROW) {
	iStateId = OS.SCRBS_NORMAL;
	if ((state & DrawData.HOT) != 0) iStateId = OS.SCRBS_HOT;
	if ((state & DrawData.PRESSED) != 0) iStateId = OS.SCRBS_PRESSED;
	if ((state & DrawData.DISABLED) != 0) iStateId = OS.SCRBS_DISABLED;
	}
	return new int[]{iPartId, iStateId};
	}

	@Override
	Rectangle getBounds(int part, Rectangle bounds) {
	if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) {
	long /int/ hTheme = OS.OpenThemeData(0, getClassId());
	if ((style & SWT.VERTICAL) != 0) {
	int width = OS.GetThemeSysSize(hTheme, OS.SM_CXVSCROLL);
	int totalWidth = bounds.height - 2 * width;
	int thumbWidth = Math.max(width / 2, (totalWidth * thumb) / Math.max(1, (maximum - minimum)));//BAD
	int thumbPos = bounds.y + width + Math.max(0, (totalWidth * selection) / Math.max(1, (maximum - minimum)));
	switch (part) {
	case DrawData.SCROLLBAR_DOWN_ARROW:
	return new Rectangle(bounds.x, bounds.y + bounds.height - width, bounds.width, width);
	case DrawData.SCROLLBAR_UP_ARROW:
	return new Rectangle(bounds.x, bounds.y, bounds.width, width);
	case DrawData.SCROLLBAR_UP_TRACK:
	return new Rectangle(bounds.x, bounds.y + width, bounds.width, thumbPos - bounds.y - width);
	case DrawData.SCROLLBAR_THUMB:
	return new Rectangle(bounds.x, thumbPos, bounds.width, thumbWidth);
	case DrawData.SCROLLBAR_DOWN_TRACK:
	return new Rectangle(bounds.x, thumbPos + thumbWidth, bounds.width, bounds.y + bounds.height - width - thumbPos - thumbWidth);
	}
	} else {

	}
	OS.CloseThemeData (hTheme);
	}
	return super.getBounds(part, bounds);
	}

	@Override
	int getSelection(Point position, Rectangle bounds) {
	if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) {
	long /int/ hTheme = OS.OpenThemeData(0, getClassId());
	if ((style & SWT.VERTICAL) != 0) {
	int width = OS.GetThemeSysSize(hTheme, OS.SM_CXVSCROLL);
	int totalWidth = bounds.height - 2 * width;
	int thumbPos = bounds.y + width + Math.max(0, (totalWidth * selection) / Math.max(1, (maximum - minimum)));
	thumbPos += position.y;
	int selection = ((thumbPos - bounds.y - width) * (maximum - minimum)) / totalWidth;
	return Math.max(0, Math.min(selection, maximum - thumb));
	} else {

	}
	OS.CloseThemeData (hTheme);
	}
	return 0;
	}

	@Override
	int hit(Theme theme, Point position, Rectangle bounds) {
	if (!(OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ())) return -1;
	long /int/ hTheme = OS.OpenThemeData(0, getClassId());
	//TODO - should we take a GC?
	int hDC = 0;
	RECT rect = new RECT ();
	POINT pt = new POINT();
	pt.x = position.x;
	pt.y = position.y;
	short[] code = new short[1];
	try {
	if ((style & SWT.VERTICAL) != 0) {
	int width = OS.GetThemeSysSize(hTheme, OS.SM_CXVSCROLL);
	rect.left = bounds.x;
	rect.right = rect.left + bounds.width;
	rect.top = bounds.y;
	rect.bottom = rect.top + width;
	int[] part = getPartId(DrawData.SCROLLBAR_UP_ARROW);
	OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
	if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_UP_ARROW;
	rect.bottom = bounds.y + bounds.height;
	rect.top = rect.bottom - width;
	part = getPartId(DrawData.SCROLLBAR_DOWN_ARROW);
	OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
	if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_DOWN_ARROW;
	int totalWidth = bounds.height - 2 * width;
	int thumbWidth = Math.max(width / 2, (totalWidth * thumb) / Math.max(1, (maximum - minimum)));//BAD
	int thumbPos = bounds.y + width + Math.max(0, (totalWidth * selection) / Math.max(1, (maximum - minimum)));
	rect.top = bounds.y + width;
	rect.bottom = thumbPos;
	part = getPartId(DrawData.SCROLLBAR_THUMB);
	OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
	if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_UP_TRACK;
	rect.top = rect.bottom;
	rect.bottom = rect.top + thumbWidth;
	part = getPartId(DrawData.SCROLLBAR_UP_TRACK);
	OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
	if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_THUMB;
	rect.top = rect.bottom;
	rect.bottom = bounds.y + bounds.height - width;
	part = getPartId(DrawData.SCROLLBAR_DOWN_TRACK);
	OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
	if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_DOWN_TRACK;
	} else {
	int height = OS.GetThemeSysSize(hTheme, OS.SM_CXVSCROLL);//BAD - why SM_CXHSCROLL = 0?
	rect.top = bounds.y;
	rect.bottom = rect.top + bounds.height;
	rect.left = bounds.x;
	rect.right = rect.left + height;
	int[] part = getPartId(DrawData.SCROLLBAR_LEFT_ARROW);
	OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
	if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_UP_ARROW;
	rect.right = bounds.x + bounds.width;
	rect.left = rect.right - height;
	part = getPartId(DrawData.SCROLLBAR_RIGHT_ARROW);
	OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
	if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_DOWN_ARROW;
	int totalWidth = bounds.width - 2 * height;
	int thumbWidth = Math.max(height / 2, (totalWidth * thumb) / (maximum - minimum));//BAD
	int thumbPos = bounds.x + height + Math.max(0, (totalWidth * selection) / Math.max(1, (maximum - minimum)));
	rect.left = bounds.x + height;
	rect.right = thumbPos;
	part = getPartId(DrawData.SCROLLBAR_LEFT_TRACK);
	OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
	if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_UP_TRACK;
	rect.left = rect.right;
	rect.right = rect.left + thumbWidth;
	part = getPartId(DrawData.SCROLLBAR_THUMB);
	OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
	if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_THUMB;
	rect.left = rect.right;
	rect.right = bounds.x + bounds.width - height;
	part = getPartId(DrawData.SCROLLBAR_RIGHT_TRACK);
	OS.HitTestThemeBackground(hTheme, hDC, part[0], part[1], 0, rect, 0, pt, code);
	if (code[0] != OS.HTNOWHERE) return DrawData.SCROLLBAR_DOWN_TRACK;
	}
	} finally {
	OS.CloseThemeData (hTheme);
	}
	return DrawData.WIDGET_NOWHERE;
	}

	}