diff options
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 | 769 |
1 files changed, 213 insertions, 556 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 index b4055f1a14..839ba34afb 100644 --- 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 @@ -6,121 +6,31 @@ package org.eclipse.swt.widgets; * 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.internal.carbon.*; import org.eclipse.swt.*; -import org.eclipse.swt.graphics.*; 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 <em>selection</em> 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 - */ -public /*final*/ class ScrollBar extends Widget { +public class ScrollBar extends Widget { + int handle; Scrollable parent; - private int increment= 1; - private int pageIncrement= 10; - boolean visible= true; - + boolean dragging; + int increment = 1; + int pageIncrement = 10; + ScrollBar () { - /* Do Nothing */ + /* Do nothing */ } + ScrollBar (Scrollable parent, int style) { super (parent, checkStyle (style)); this.parent = parent; - createWidget (0); -} -/** - * Adds the listener to the collection of listeners who will - * be notified when the receiver's value changes, 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>0</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 - * - * @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 - */ + createWidget (); +} + public void addSelectionListener(SelectionListener listener) { checkWidget(); if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); @@ -128,482 +38,251 @@ public void addSelectionListener(SelectionListener 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); } -void createHandle (int index) { - state |= HANDLE; - handle= 0; - if ((style & SWT.H_SCROLL) != 0) { - handle= parent.hScrollBar; - } else if ((style & SWT.V_SCROLL) != 0) { - handle= parent.vScrollBar; + +int actionProc (int theControl, int partCode) { + Event event = new Event (); + int value = OS.GetControl32BitValue (handle); + switch (partCode) { + case OS.kControlUpButtonPart: + value -= increment; + event.detail = SWT.ARROW_UP; + break; + case OS.kControlPageUpPart: + value -= pageIncrement; + event.detail = SWT.PAGE_UP; + break; + case OS.kControlPageDownPart: + value += pageIncrement; + event.detail = SWT.PAGE_DOWN; + break; + case OS.kControlDownButtonPart: + value += increment; + event.detail = SWT.ARROW_DOWN; + break; + case OS.kControlIndicatorPart: + dragging = true; + event.detail = SWT.DRAG; + break; + default: + return 0; } - if (handle == 0) error (SWT.ERROR_NO_HANDLES); + OS.SetControl32BitValue (handle, value); + sendEvent (SWT.Selection, event); + if (dragging) { + Display display = getDisplay (); + display.update (); + } + return 0; } -/** -* Gets the Display. -*/ + +void destroyWidget () { + int theControl = handle; + releaseHandle (); + if (theControl != 0) { + OS.DisposeControl (theControl); + } +} + +void createHandle () { + Display display = getDisplay (); + 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 (); + WidgetTable.remove (handle); +} + public Display getDisplay () { Scrollable parent = this.parent; if (parent == null) error (SWT.ERROR_WIDGET_DISPOSED); return parent.getDisplay (); } -/** - * 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 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 boolean getEnabled () { checkWidget(); - return OS.IsControlEnabled(handle); -} -/** - * 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> - */ + return (state & DISABLED) == 0; +} + 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(); - return OS.GetControl32BitMaximum(handle) + OS.GetControlViewSize(handle); -} -/** - * 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> - */ + int maximum = OS.GetControl32BitMaximum (handle); + int viewSize = OS.GetControlViewSize (handle); + return maximum + viewSize; +} + public int getMinimum () { checkWidget(); - return OS.GetControl32BitMinimum(handle); -} -/** - * 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> - */ + return OS.GetControl32BitMinimum (handle); +} + public int getPageIncrement () { checkWidget(); return pageIncrement; } -/** - * Returns the receiver's parent, which must be 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(); + checkWidget (); return parent; } -/** - * Returns the single <em>selection</em> 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); -} -/** - * 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> - */ + return OS.GetControl32BitValue (handle); +} + public Point getSize () { checkWidget(); - MacRect bounds= new MacRect(); - OS.GetControlBounds(handle, bounds.getData()); - return bounds.getSize(); -} -/** - * Answers 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 - */ + Rect rect = getControlSize (handle); + return new Point (rect.right - rect.left, rect.bottom - rect.top); +} + 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> - */ + return OS.GetControlViewSize (handle); +} + public boolean getVisible () { checkWidget(); - return OS.IsControlVisible(handle); + return (state & HIDDEN) == 0; } -/* AW + void hookEvents () { - int windowProc = parent.getDisplay ().windowProc; - OS.XtAddCallback (handle, OS.XmNvalueChangedCallback, windowProc, SWT.Selection); - OS.XtAddCallback (handle, OS.XmNdragCallback, windowProc, SWT.Selection); - OS.XtAddCallback (handle, OS.XmNtoBottomCallback, windowProc, SWT.Selection); - OS.XtAddCallback (handle, OS.XmNincrementCallback, windowProc, SWT.Selection); - OS.XtAddCallback (handle, OS.XmNdecrementCallback, windowProc, SWT.Selection); - OS.XtAddCallback (handle, OS.XmNpageIncrementCallback, windowProc, SWT.Selection); - OS.XtAddCallback (handle, OS.XmNpageDecrementCallback, windowProc, SWT.Selection); - OS.XtAddCallback (handle, OS.XmNtoTopCallback, windowProc, SWT.Selection); -} -*/ -/** - * 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 - */ + super.hookEvents (); + Display display = getDisplay (); + int controlProc = display.controlProc; + int [] mask = new int [] { + OS.kEventClassControl, OS.kEventControlDraw, + }; + int controlTarget = OS.GetControlEventTarget (handle); + OS.InstallEventHandler (controlTarget, controlProc, mask.length / 2, mask, handle, null); +} + public boolean isEnabled () { checkWidget(); - return getEnabled () && parent.isEnabled (); -} -/** - * 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 - */ + return OS.IsControlEnabled (handle); +} + public boolean isVisible () { checkWidget(); - return getVisible () && parent.isVisible (); -} -/* AW -void manageChildren () { - OS.XtManageChild (handle); -} -*/ -int processSelection (Object callData) { - - MacControlEvent macEvent= (MacControlEvent) callData; - int partCode= macEvent.getPartCode(); - boolean mouseDown= macEvent.isMouseDown(); - - if ((partCode != OS.kControlIndicatorPart) && !mouseDown) - return 0; - - Event event= new Event (); - - switch (partCode) { - case OS.kControlUpButtonPart: - OS.SetControl32BitValue(handle, OS.GetControl32BitValue(handle) - increment); - event.detail = SWT.ARROW_UP; - break; - case OS.kControlPageUpPart: - OS.SetControl32BitValue(handle, OS.GetControl32BitValue(handle) - pageIncrement); - event.detail = SWT.PAGE_UP; - break; - case OS.kControlPageDownPart: - OS.SetControl32BitValue(handle, OS.GetControl32BitValue(handle) + pageIncrement); - event.detail = SWT.PAGE_DOWN; - break; - case OS.kControlDownButtonPart: - OS.SetControl32BitValue(handle, OS.GetControl32BitValue(handle) + increment); - event.detail = SWT.ARROW_DOWN; - break; - case OS.kControlIndicatorPart: // end of drag or continuos drag - if (mouseDown) { - event.detail = SWT.DRAG; // continuos drag - } else { - /* - * Do not set the detail field to SWT.DRAG - * to indicate that the dragging has ended. - */ - } - break; - } + return OS.HIViewIsVisible (handle); +} - sendEvent (SWT.Selection, event); - // flush display - getDisplay().update(); +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; +} - return OS.kNoErr; +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); } -int processWheel(int eRefHandle) { - int[] t= new int[1]; - OS.GetEventParameter(eRefHandle, OS.kEventParamMouseWheelDelta, OS.typeSInt32, null, null, t); - OS.SetControl32BitValue(handle, OS.GetControl32BitValue(handle) - (increment * t[0])); - Event event= new Event (); - event.detail= t[0] > 0 ? SWT.ARROW_UP : SWT.ARROW_DOWN; - sendEvent (SWT.Selection, event); - getDisplay().update(); - return OS.kNoErr; + +void register () { + super.register (); + WidgetTable.put (handle, this); } + void releaseChild () { super.releaseChild (); - if (parent.horizontalBar == this) parent.horizontalBar = null; - if (parent.verticalBar == this) parent.verticalBar = null; + //NOT DONE - layout parent +} + +void releaseHandle () { + super.releaseHandle (); + handle = 0; } + void releaseWidget () { super.releaseWidget (); parent = null; } -/** - * Removes the listener from the collection of listeners who will - * be notified when the receiver's value changes. - * - * @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) { + +public void setIncrement (int value) { checkWidget(); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook(SWT.Selection, listener); - eventTable.unhook(SWT.DefaultSelection,listener); + 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) - OS.EnableControl(handle); - else - OS.DisableControl(handle); -} -/** - * 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; -} -/** - * Sets the maximum value which the receiver will allow - * to be the argument which must be greater than or - * equal to zero. - * - * @param value the new maximum (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> - */ + if (enabled) { + if ((state & DISABLED) == 0) return; + state &= ~DISABLED; + OS.EnableControl (handle); + } else { + if ((state & DISABLED) != 0) return; + state |= DISABLED; + OS.DisableControl (handle); + } +} + public void setMaximum (int value) { checkWidget(); if (value < 0) return; - OS.SetControl32BitMaximum(handle, value-OS.GetControlViewSize(handle)); -} -/** - * Sets the minimum value which the receiver will allow - * to be the argument which must be greater than or - * equal to zero. - * - * @param value the new minimum (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> - */ + int minimum = OS.GetControl32BitMinimum (handle); + int viewSize = OS.GetControlViewSize (handle); + if (value - minimum - viewSize < 0) return; + OS.SetControl32BitMaximum (handle, value - viewSize); +} + public void setMinimum (int value) { checkWidget(); if (value < 0) return; - 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. - * - * @return 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> - */ + int maximum = OS.GetControl32BitMinimum (handle); + int viewSize = OS.GetControlViewSize (handle); + if (maximum - value - viewSize < 0) return; + OS.SetControl32BitMinimum (handle, value); +} + 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 value 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 selection) { + pageIncrement = value; +} + +public void setSelection (int value) { checkWidget(); - if (selection < 0) return; - OS.SetControl32BitValue(handle, selection); -} -/** - * Sets the size of the receiver's thumb relative to the - * difference between its maximum and minimum values to the - * argument which must be at least one. - * - * @param value the new thumb value (must be at least one) - * - * @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 - */ + if (value < 0) return; + OS.SetControl32BitValue (handle, value); +} + public void setThumb (int value) { checkWidget(); if (value < 1) return; - int oldMaximum= OS.GetControl32BitMaximum(handle) + OS.GetControlViewSize(handle); - OS.SetControlViewSize(handle, value); - OS.SetControl32BitMaximum(handle, oldMaximum-value); -} -/** - * Sets the receiver's selection, minimum value, maximum - * value, thumb, increment and page increment all at once. - * <p> - * Note: This is equivalent 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> - */ + OS.SetControlViewSize (handle, value); +} + public void setValues (int selection, int minimum, int maximum, int thumb, int increment, int pageIncrement) { checkWidget(); if (selection < 0) return; @@ -613,52 +292,30 @@ public void setValues (int selection, int minimum, int maximum, int thumb, int i if (maximum - minimum - thumb < 0) return; if (increment < 1) return; if (pageIncrement < 1) return; - 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> - */ + OS.SetControl32BitMinimum (handle, minimum); + OS.SetControl32BitMaximum (handle, maximum - thumb); + OS.SetControlViewSize (handle, thumb); + OS.SetControl32BitValue (handle, selection); + this.increment = increment; + this.pageIncrement = pageIncrement; +} + public void setVisible (boolean visible) { checkWidget(); - -// this.visible= visible; -// if (OS.IsControlVisible(handle) != visible) { -// OS.HIViewSetVisible(handle, visible); -// parent.relayout123(); -// sendEvent(visible ? SWT.Show : SWT.Hide); -// } - - if (this.visible != visible) { - this.visible= visible; - int topHandle = topHandle (); - if (OS.IsControlVisible(topHandle) != visible) { - OS.HIViewSetVisible(topHandle, visible); - parent.relayout123(); - sendEvent (visible ? SWT.Show : SWT.Hide); - } - } -} - -void internalSetBounds(MacRect bounds) { - OS.SetControlBounds(handle, bounds.getData()); + if (visible) { + if ((state & HIDDEN) == 0) return; + state &= ~HIDDEN; + } else { + if ((state & HIDDEN) != 0) return; + state |= HIDDEN; + } + OS.HIViewSetVisible (handle, visible); + sendEvent (visible ? SWT.Show : SWT.Hide); + parent.layoutControl(); +} + +void setZOrder () { + OS.HIViewAddSubview (parent.scrolledHandle, handle); } } |