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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/ScrollBar.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/ScrollBar.java | 795 |
1 files changed, 0 insertions, 795 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/ScrollBar.java b/bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/ScrollBar.java deleted file mode 100644 index 8313c229d8..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/ScrollBar.java +++ /dev/null @@ -1,795 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2009 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.widgets; - - -import org.eclipse.swt.internal.carbon.OS; - -import org.eclipse.swt.*; -import org.eclipse.swt.events.*; -import org.eclipse.swt.graphics.*; - -/** - * Instances of this class are selectable user interface - * objects that represent a range of positive, numeric values. - * <p> - * At any given moment, a given scroll bar will have a - * single 'selection' that is considered to be its - * value, which is constrained to be within the range of - * values the scroll bar represents (that is, between its - * <em>minimum</em> and <em>maximum</em> values). - * </p><p> - * Typically, scroll bars will be made up of five areas: - * <ol> - * <li>an arrow button for decrementing the value</li> - * <li>a page decrement area for decrementing the value by a larger amount</li> - * <li>a <em>thumb</em> for modifying the value by mouse dragging</li> - * <li>a page increment area for incrementing the value by a larger amount</li> - * <li>an arrow button for incrementing the value</li> - * </ol> - * Based on their style, scroll bars are either <code>HORIZONTAL</code> - * (which have a left facing button for decrementing the value and a - * right facing button for incrementing it) or <code>VERTICAL</code> - * (which have an upward facing button for decrementing the value - * and a downward facing buttons for incrementing it). - * </p><p> - * On some platforms, the size of the scroll bar's thumb can be - * varied relative to the magnitude of the range of values it - * represents (that is, relative to the difference between its - * maximum and minimum values). Typically, this is used to - * indicate some proportional value such as the ratio of the - * visible area of a document to the total amount of space that - * it would take to display it. SWT supports setting the thumb - * size even if the underlying platform does not, but in this - * case the appearance of the scroll bar will not change. - * </p><p> - * Scroll bars are created by specifying either <code>H_SCROLL</code>, - * <code>V_SCROLL</code> or both when creating a <code>Scrollable</code>. - * They are accessed from the <code>Scrollable</code> using - * <code>getHorizontalBar</code> and <code>getVerticalBar</code>. - * </p><p> - * Note: Scroll bars are not Controls. On some platforms, scroll bars - * that appear as part of some standard controls such as a text or list - * have no operating system resources and are not children of the control. - * For this reason, scroll bars are treated specially. To create a control - * that looks like a scroll bar but has operating system resources, use - * <code>Slider</code>. - * </p> - * <dl> - * <dt><b>Styles:</b></dt> - * <dd>HORIZONTAL, VERTICAL</dd> - * <dt><b>Events:</b></dt> - * <dd>Selection</dd> - * </dl> - * <p> - * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified. - * </p><p> - * IMPORTANT: This class is <em>not</em> intended to be subclassed. - * </p> - * - * @see Slider - * @see Scrollable - * @see Scrollable#getHorizontalBar - * @see Scrollable#getVerticalBar - * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> - * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> - * @noextend This class is not intended to be subclassed by clients. - */ -public class ScrollBar extends Widget { - int handle; - int visibleRgn, oldActionProc; - Scrollable parent; - boolean dragging; - int increment = 1; - int pageIncrement = 10; - -ScrollBar () { - /* Do nothing */ -} - -ScrollBar (Scrollable parent, int style) { - super (parent, checkStyle (style)); - this.parent = parent; - createWidget (); -} - -/** - * Adds the listener to the collection of listeners who will - * be notified when the user changes the receiver's value, by sending - * it one of the messages defined in the <code>SelectionListener</code> - * interface. - * <p> - * When <code>widgetSelected</code> is called, the event object detail field contains one of the following values: - * <code>SWT.NONE</code> - for the end of a drag. - * <code>SWT.DRAG</code>. - * <code>SWT.HOME</code>. - * <code>SWT.END</code>. - * <code>SWT.ARROW_DOWN</code>. - * <code>SWT.ARROW_UP</code>. - * <code>SWT.PAGE_DOWN</code>. - * <code>SWT.PAGE_UP</code>. - * <code>widgetDefaultSelected</code> is not called. - * </p> - * - * @param listener the listener which should be notified when the user changes the receiver's value - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see SelectionListener - * @see #removeSelectionListener - * @see SelectionEvent - */ -public void addSelectionListener(SelectionListener listener) { - checkWidget(); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener(listener); - addListener(SWT.Selection,typedListener); - addListener(SWT.DefaultSelection,typedListener); -} - -static int checkStyle (int style) { - return checkBits (style, SWT.HORIZONTAL, SWT.VERTICAL, 0, 0, 0, 0); -} - -int actionProc (int theControl, int partCode) { - int result = super.actionProc (theControl, partCode); - if (result == OS.noErr) return result; - Event event = new Event (); - int inc = 0; - switch (partCode) { - case OS.kControlUpButtonPart: - inc -= increment; - event.detail = SWT.ARROW_UP; - break; - case OS.kControlPageUpPart: - inc -= pageIncrement; - event.detail = SWT.PAGE_UP; - break; - case OS.kControlPageDownPart: - inc += pageIncrement; - event.detail = SWT.PAGE_DOWN; - break; - case OS.kControlDownButtonPart: - inc += increment; - event.detail = SWT.ARROW_DOWN; - break; - case OS.kControlIndicatorPart: - dragging = true; - event.detail = SWT.DRAG; - break; - default: - return result; - } - if (oldActionProc != 0) { - OS.Call (oldActionProc, theControl, partCode); - parent.redrawBackgroundImage (); - } else { - int value = OS.GetControl32BitValue (handle) + inc; - OS.SetControl32BitValue (handle, value); - } - sendEvent (SWT.Selection, event); - return result; -} - -void destroyHandle () { - int theControl = handle; - releaseHandle (); - if (theControl != 0) { - OS.DisposeControl (theControl); - } -} - -void destroyWidget () { - parent.destroyScrollBar (this); - releaseHandle (); - //parent.sendEvent (SWT.Resize); -} - -void enableWidget (boolean enabled) { - if (enabled) { - OS.EnableControl (handle); - } else { - OS.DisableControl (handle); - } -} - -void createHandle () { - int actionProc = display.actionProc; - int [] outControl = new int [1]; - int window = OS.GetControlOwner (parent.scrolledHandle); - OS.CreateScrollBarControl (window, null, 0, 0, 90, 10, true, actionProc, outControl); - if (outControl [0] == 0) error (SWT.ERROR_NO_HANDLES); - handle = outControl [0]; -} - -void createWidget () { - super.createWidget (); - setZOrder (); -} - -void deregister () { - super.deregister (); - display.removeWidget (handle); -} - -boolean getDrawing () { - return parent.getDrawing (); -} - -/** - * Returns <code>true</code> if the receiver is enabled, and - * <code>false</code> otherwise. A disabled control is typically - * not selectable from the user interface and draws with an - * inactive or "grayed" look. - * - * @return the receiver's enabled state - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see #isEnabled - */ -public boolean getEnabled () { - checkWidget(); - return (state & DISABLED) == 0; -} - -/** - * Returns the amount that the receiver's value will be - * modified by when the up/down (or right/left) arrows - * are pressed. - * - * @return the increment - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public int getIncrement () { - checkWidget(); - return increment; -} - -/** - * Returns the maximum value which the receiver will allow. - * - * @return the maximum - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public int getMaximum () { - checkWidget(); - int maximum = OS.GetControl32BitMaximum (handle) & 0x7FFFFFFF; - int viewSize = OS.GetControlViewSize (handle); - return maximum + viewSize; -} - -/** - * Returns the minimum value which the receiver will allow. - * - * @return the minimum - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public int getMinimum () { - checkWidget(); - return OS.GetControl32BitMinimum (handle) & 0x7FFFFFFF; -} - -/** - * Returns the amount that the receiver's value will be - * modified by when the page increment/decrement areas - * are selected. - * - * @return the page increment - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public int getPageIncrement () { - checkWidget(); - return pageIncrement; -} - -/** - * Returns the receiver's parent, which must be a Scrollable. - * - * @return the receiver's parent - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public Scrollable getParent () { - checkWidget (); - return parent; -} - -/** - * Returns the single 'selection' that is the receiver's value. - * - * @return the selection - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public int getSelection () { - checkWidget(); - return OS.GetControl32BitValue (handle) & 0x7FFFFFFF; -} - -/** - * Returns a point describing the receiver's size. The - * x coordinate of the result is the width of the receiver. - * The y coordinate of the result is the height of the - * receiver. - * - * @return the receiver's size - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public Point getSize () { - checkWidget(); - return getControlSize (handle); -} - -/** - * Returns the size of the receiver's thumb relative to the - * difference between its maximum and minimum values. - * - * @return the thumb value - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see ScrollBar - */ -public int getThumb () { - checkWidget(); - return OS.GetControlViewSize (handle); -} - -/** - * Returns <code>true</code> if the receiver is visible, and - * <code>false</code> otherwise. - * <p> - * If one of the receiver's ancestors is not visible or some - * other condition makes the receiver not visible, this method - * may still indicate that it is considered visible even though - * it may not actually be showing. - * </p> - * - * @return the receiver's visibility state - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public boolean getVisible () { - checkWidget(); - return (state & HIDDEN) == 0; -} - -int getVisibleRegion (int control, boolean clipChildren) { - if (visibleRgn == 0) { - visibleRgn = OS.NewRgn (); - calculateVisibleRegion (control, visibleRgn, clipChildren); - } - int result = OS.NewRgn (); - OS.CopyRgn (visibleRgn, result); - return result; -} - -void hookEvents () { - super.hookEvents (); - int controlProc = display.controlProc; - int [] mask = new int [] { - OS.kEventClassControl, OS.kEventControlTrack, - }; - int controlTarget = OS.GetControlEventTarget (handle); - OS.InstallEventHandler (controlTarget, controlProc, mask.length / 2, mask, handle, null); - if ((parent.state & CANVAS) == 0) { - oldActionProc = OS.GetControlAction (handle); - OS.SetControlAction (handle, display.actionProc); - } -} - - -void invalidateVisibleRegion (int control) { - resetVisibleRegion (control); - parent.resetVisibleRegion (control); -} - -void invalWindowRgn (int window, int rgn) { - parent.invalWindowRgn (window, rgn); -} - -boolean isDrawing () { - return getDrawing() && parent.isDrawing(); -} - -/** - * Returns <code>true</code> if the receiver is enabled and all - * of the receiver's ancestors are enabled, and <code>false</code> - * otherwise. A disabled control is typically not selectable from the - * user interface and draws with an inactive or "grayed" look. - * - * @return the receiver's enabled state - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see #getEnabled - */ -public boolean isEnabled () { - checkWidget(); - return getEnabled () && parent.isEnabled (); -} - -boolean isTrimHandle (int trimHandle) { - return handle == trimHandle; -} - -/** - * Returns <code>true</code> if the receiver is visible and all - * of the receiver's ancestors are visible and <code>false</code> - * otherwise. - * - * @return the receiver's visibility state - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see #getVisible - */ -public boolean isVisible () { - checkWidget(); - return getVisible () && parent.isVisible (); -} - -int kEventMouseDown (int nextHandler, int theEvent, int userData) { - int status = super.kEventMouseDown (nextHandler, theEvent, userData); - if (status == OS.noErr) return status; - dragging = false; - status = OS.CallNextEventHandler (nextHandler, theEvent); - if (dragging) { - Event event = new Event (); - sendEvent (SWT.Selection, event); - } - dragging = false; - return status; -} - -int kEventMouseWheelMoved (int nextHandler, int theEvent, int userData) { - return parent.kEventMouseWheelMoved (nextHandler, theEvent, userData); -} - -void redraw () { - redrawWidget (handle, false); -} - -/** - * Removes the listener from the collection of listeners who will - * be notified when the user changes the receiver's value. - * - * @param listener the listener which should no longer be notified - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see SelectionListener - * @see #addSelectionListener - */ -public void removeSelectionListener(SelectionListener listener) { - checkWidget(); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook(SWT.Selection, listener); - eventTable.unhook(SWT.DefaultSelection,listener); -} - -void register () { - super.register (); - display.addWidget (handle, this); -} - -void releaseHandle () { - super.releaseHandle (); - handle = 0; -} - -void releaseParent () { - super.releaseParent (); - if (parent.horizontalBar == this) parent.horizontalBar = null; - if (parent.verticalBar == this) parent.verticalBar = null; - parent.resizeClientArea (); -} - -void releaseWidget () { - super.releaseWidget (); - if (visibleRgn != 0) OS.DisposeRgn (visibleRgn); - visibleRgn = 0; -} - -void resetVisibleRegion (int control) { - if (visibleRgn != 0) { - OS.DisposeRgn (visibleRgn); - visibleRgn = 0; - } -} - -/** - * Sets the amount that the receiver's value will be - * modified by when the up/down (or right/left) arrows - * are pressed to the argument, which must be at least - * one. - * - * @param value the new increment (must be greater than zero) - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setIncrement (int value) { - checkWidget(); - if (value < 1) return; - increment = value; -} - -/** - * Enables the receiver if the argument is <code>true</code>, - * and disables it otherwise. A disabled control is typically - * not selectable from the user interface and draws with an - * inactive or "grayed" look. - * - * @param enabled the new enabled state - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setEnabled (boolean enabled) { - checkWidget(); - if (enabled) { - if ((state & DISABLED) == 0) return; - state &= ~DISABLED; - OS.EnableControl (handle); - } else { - if ((state & DISABLED) != 0) return; - state |= DISABLED; - OS.DisableControl (handle); - } -} - -/** - * Sets the maximum. If this value is negative or less than or - * equal to the minimum, the value is ignored. If necessary, first - * the thumb and then the selection are adjusted to fit within the - * new range. - * - * @param value the new maximum - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setMaximum (int value) { - checkWidget(); - if (value < 0) return; - int minimum = OS.GetControl32BitMinimum (handle); - if (value <= minimum) return; - int viewSize = OS.GetControlViewSize (handle); - if (value - minimum < viewSize) { - viewSize = value - minimum; - OS.SetControlViewSize (handle, viewSize); - } - OS.SetControl32BitMaximum (handle, value - viewSize); -} - -/** - * Sets the minimum value. If this value is negative or greater - * than or equal to the maximum, the value is ignored. If necessary, - * first the thumb and then the selection are adjusted to fit within - * the new range. - * - * @param value the new minimum - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setMinimum (int value) { - checkWidget(); - if (value < 0) return; - int viewSize = OS.GetControlViewSize (handle); - int maximum = OS.GetControl32BitMaximum (handle) + viewSize; - if (value >= maximum) return; - if (maximum - value < viewSize) { - viewSize = maximum - value; - OS.SetControl32BitMaximum (handle, maximum - viewSize); - OS.SetControlViewSize (handle, viewSize); - } - OS.SetControl32BitMinimum (handle, value); -} - -/** - * Sets the amount that the receiver's value will be - * modified by when the page increment/decrement areas - * are selected to the argument, which must be at least - * one. - * - * @param value the page increment (must be greater than zero) - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setPageIncrement (int value) { - checkWidget(); - if (value < 1) return; - pageIncrement = value; -} - -/** - * Sets the single <em>selection</em> that is the receiver's - * value to the argument which must be greater than or equal - * to zero. - * - * @param selection the new selection (must be zero or greater) - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setSelection (int value) { - checkWidget(); - OS.SetControl32BitValue (handle, value); -} - -/** - * Sets the size of the receiver's thumb relative to the - * difference between its maximum and minimum values. This new - * value will be ignored if it is less than one, and will be - * clamped if it exceeds the receiver's current range. - * - * @param value the new thumb value, which must be at least one and not - * larger than the size of the current range - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setThumb (int value) { - checkWidget(); - if (value < 1) return; - int minimum = OS.GetControl32BitMinimum (handle); - int viewSize = OS.GetControlViewSize (handle); - int maximum = OS.GetControl32BitMaximum (handle) + viewSize; - value = Math.min (value, maximum - minimum); - OS.SetControl32BitMaximum (handle, maximum - value); - OS.SetControlViewSize (handle, value); -} - -/** - * Sets the receiver's selection, minimum value, maximum - * value, thumb, increment and page increment all at once. - * <p> - * Note: This is similar to setting the values individually - * using the appropriate methods, but may be implemented in a - * more efficient fashion on some platforms. - * </p> - * - * @param selection the new selection value - * @param minimum the new minimum value - * @param maximum the new maximum value - * @param thumb the new thumb value - * @param increment the new increment value - * @param pageIncrement the new pageIncrement value - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setValues (int selection, int minimum, int maximum, int thumb, int increment, int pageIncrement) { - checkWidget(); - if (minimum < 0) return; - if (maximum < 0) return; - if (thumb < 1) return; - if (increment < 1) return; - if (pageIncrement < 1) return; - thumb = Math.min (thumb, maximum - minimum); - OS.SetControl32BitMinimum (handle, minimum); - OS.SetControl32BitMaximum (handle, maximum - thumb); - OS.SetControlViewSize (handle, thumb); - OS.SetControl32BitValue (handle, selection); - this.increment = increment; - this.pageIncrement = pageIncrement; -} - -/** - * Marks the receiver as visible if the argument is <code>true</code>, - * and marks it invisible otherwise. - * <p> - * If one of the receiver's ancestors is not visible or some - * other condition makes the receiver not visible, marking - * it visible may not actually cause it to be displayed. - * </p> - * - * @param visible the new visibility state - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setVisible (boolean visible) { - checkWidget(); - if (visible) { - if ((state & HIDDEN) == 0) return; - state &= ~HIDDEN; - } else { - if ((state & HIDDEN) != 0) return; - state |= HIDDEN; - } - if (parent.setScrollBarVisible (this, visible)) { - sendEvent (visible ? SWT.Show : SWT.Hide); - parent.sendEvent (SWT.Resize); - } -} - -void setZOrder () { - OS.HIViewAddSubview (parent.scrolledHandle, handle); -} - -} |