diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Slider.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Slider.java | 796 |
1 files changed, 0 insertions, 796 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Slider.java b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Slider.java deleted file mode 100755 index 0f8985a261..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Slider.java +++ /dev/null @@ -1,796 +0,0 @@ -package org.eclipse.swt.widgets;
-
-/*
- * (c) Copyright IBM Corp. 2000, 2001.
- * All Rights Reserved
- */
-
-import org.eclipse.swt.internal.*;
-import org.eclipse.swt.internal.win32.*;
-import org.eclipse.swt.*;
-import org.eclipse.swt.graphics.*;
-import org.eclipse.swt.events.*;
-
-/**
- * Instances of this class are selectable user interface
- * objects that represent a range of positive, numeric values.
- * <p>
- * At any given moment, a given slider 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 slider represents (that is, between its
- * <em>minimum</em> and <em>maximum</em> values).
- * </p><p>
- * Typically, sliders 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, sliders are either <code>HORIZONTAL</code>
- * (which have left and right facing buttons for incrementing and
- * decrementing the value) or <code>VERTICAL</code> (which have
- * up and down facing buttons for incrementing and decrementing
- * the value).
- * </p><p>
- * On some platforms, the size of the slider'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 slider will not change.
- * </p>
- * <dl>
- * <dt><b>Styles:</b></dt>
- * <dd>HORIZONTAL, VERTICAL</dd>
- * <dt><b>Events:</b></dt>
- * <dd>Selection</dd>
- * </dl>
- * <p>
- * IMPORTANT: This class is <em>not</em> intended to be subclassed.
- *
- * @see ScrollBar
- */
-public class Slider extends Control {
- int increment, pageIncrement;
- static final int ScrollBarProc;
- static final TCHAR ScrollBarClass = new TCHAR (0, "SCROLLBAR", true);
- static {
- WNDCLASS lpWndClass = new WNDCLASS ();
- OS.GetClassInfo (0, ScrollBarClass, lpWndClass);
- ScrollBarProc = lpWndClass.lpfnWndProc;
- }
-
-/**
- * Constructs a new instance of this class given its parent
- * and a style value describing its behavior and appearance.
- * <p>
- * The style value is either one of the style constants defined in
- * class <code>SWT</code> which is applicable to instances of this
- * class, or must be built by <em>bitwise OR</em>'ing together
- * (that is, using the <code>int</code> "|" operator) two or more
- * of those <code>SWT</code> style constants. The class description
- * for all SWT widget classes should include a comment which
- * describes the style constants which are applicable to the class.
- * </p>
- *
- * @param parent a composite control which will be the parent of the new instance (cannot be null)
- * @param style the style of control to construct
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
- * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
- * </ul>
- *
- * @see SWT
- * @see Widget#checkSubclass
- * @see Widget#getStyle
- */
-public Slider (Composite parent, int style) {
- super (parent, checkStyle (style));
-}
-
-/**
- * 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
- */
-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);
-}
-
-int callWindowProc (int msg, int wParam, int lParam) {
- if (handle == 0) return 0;
- return OS.CallWindowProc (ScrollBarProc, handle, msg, wParam, lParam);
-}
-
-static int checkStyle (int style) {
- return checkBits (style, SWT.HORIZONTAL, SWT.VERTICAL, 0, 0, 0, 0);
-}
-
-public Point computeSize (int wHint, int hHint, boolean changed) {
- checkWidget ();
- int border = getBorderWidth ();
- int width = border * 2, height = border * 2;
- if ((style & SWT.HORIZONTAL) != 0) {
- width += OS.GetSystemMetrics (OS.SM_CXHSCROLL) * 10;
- height += OS.GetSystemMetrics (OS.SM_CYHSCROLL);
- } else {
- width += OS.GetSystemMetrics (OS.SM_CXVSCROLL);
- height += OS.GetSystemMetrics (OS.SM_CYVSCROLL) * 10;
- }
- if (wHint != SWT.DEFAULT) width = wHint + (border * 2);
- if (hHint != SWT.DEFAULT) height = hHint + (border * 2);
- return new Point (width, height);
-}
-
-void createWidget () {
- super.createWidget ();
- increment = 1;
- pageIncrement = 10;
- /*
- * Set the intial values of the maximum
- * to 100 and the thumb to 10. Note that
- * info.nPage needs to be 11 in order to
- * get a thumb that is 10.
- */
- SCROLLINFO info = new SCROLLINFO ();
- info.cbSize = SCROLLINFO.sizeof;
- info.fMask = OS.SIF_ALL;
- info.nMax = 100;
- info.nPage = 11;
- OS.SetScrollInfo (handle, OS.SB_CTL, info, true);
-}
-
-int defaultBackground () {
- return OS.GetSysColor (OS.COLOR_SCROLLBAR);
-}
-
-int defaultForeground () {
- return OS.GetSysColor (OS.COLOR_BTNFACE);
-}
-
-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 ();
- SCROLLINFO info = new SCROLLINFO ();
- info.cbSize = SCROLLINFO.sizeof;
- info.fMask = OS.SIF_RANGE;
- OS.GetScrollInfo (handle, OS.SB_CTL, info);
- return info.nMax;
-}
-
-/**
- * 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 ();
- SCROLLINFO info = new SCROLLINFO ();
- info.cbSize = SCROLLINFO.sizeof;
- info.fMask = OS.SIF_RANGE;
- OS.GetScrollInfo (handle, OS.SB_CTL, info);
- return info.nMin;
-}
-
-/**
- * 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 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 ();
- SCROLLINFO info = new SCROLLINFO ();
- info.cbSize = SCROLLINFO.sizeof;
- info.fMask = OS.SIF_POS;
- OS.GetScrollInfo (handle, OS.SB_CTL, info);
- return info.nPos;
-}
-
-/**
- * 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>
- */
-public int getThumb () {
- checkWidget ();
- SCROLLINFO info = new SCROLLINFO ();
- info.cbSize = SCROLLINFO.sizeof;
- info.fMask = OS.SIF_PAGE;
- OS.GetScrollInfo (handle, OS.SB_CTL, info);
- if (info.nPage != 0) --info.nPage;
- return info.nPage;
-}
-
-/**
- * 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) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) return;
- eventTable.unhook (SWT.Selection, listener);
- eventTable.unhook (SWT.DefaultSelection,listener);
-}
-
-void setBounds (int x, int y, int width, int height, int flags) {
- super.setBounds (x, y, width, height, flags);
- /*
- * Bug in Windows. If the scroll bar is resized when it has focus,
- * the flashing cursor that is used to show that the scroll bar has
- * focus is not moved. The fix is to post a fake WM_SETFOCUS to
- * get the scroll bar to recompute the size of the flashing cursor.
- */
- if (OS.GetFocus () == handle) {
- OS.PostMessage (handle, OS.WM_SETFOCUS, 0, 0);
- }
-}
-
-public void setEnabled (boolean enabled) {
- checkWidget ();
- if (OS.IsWinCE) {
- super.setEnabled (enabled);
- } else {
- int flags = enabled ? OS.ESB_ENABLE_BOTH : OS.ESB_DISABLE_BOTH;
- OS.EnableScrollBar (handle, OS.SB_CTL, flags);
- }
- state &= ~DISABLED;
- if (!enabled) state |= DISABLED;
-}
-
-/**
- * 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>
- */
-public void setMaximum (int value) {
- checkWidget ();
- if (value < 0) return;
- SCROLLINFO info = new SCROLLINFO ();
- info.cbSize = SCROLLINFO.sizeof;
- info.fMask = OS.SIF_RANGE | OS.SIF_DISABLENOSCROLL;
- OS.GetScrollInfo (handle, OS.SB_CTL, info);
- if (value - info.nMin - info.nPage < 1) return;
- info.nMax = value;
- OS.SetScrollInfo (handle, OS.SB_CTL, info, (state & DISABLED) == 0);
-
- /*
- * Feature in Windows. Using SIF_DISABLENOSCROLL,
- * SetScrollInfo () can change enabled and disabled
- * state of the scroll bar causing a scroll bar that
- * was disabled by the application to become enabled.
- * The fix is to disable the scroll bar (again) when
- * the application has disabled the scroll bar.
- */
- if ((state & DISABLED) != 0) {
- if (OS.IsWinCE) {
- OS.EnableWindow (handle, false);
- } else {
- OS.EnableScrollBar (handle, OS.SB_CTL, OS.ESB_DISABLE_BOTH);
- }
- }
-
- /*
- * Bug in Windows. If the thumb is resized when it has focus,
- * the flashing cursor that is used to show that the scroll bar has
- * focus is not moved. The fix is to post a fake WM_SETFOCUS to
- * get the scroll bar to recompute the size of the flashing cursor.
- */
- if (OS.GetFocus () == handle) {
- OS.PostMessage (handle, OS.WM_SETFOCUS, 0, 0);
- }
-}
-
-/**
- * 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>
- */
-public void setMinimum (int value) {
- checkWidget ();
- if (value < 0) return;
- SCROLLINFO info = new SCROLLINFO ();
- info.cbSize = SCROLLINFO.sizeof;
- info.fMask = OS.SIF_RANGE | OS.SIF_DISABLENOSCROLL;
- OS.GetScrollInfo (handle, OS.SB_CTL, info);
- if (info.nMax - value - info.nPage < 1) return;
- info.nMin = value;
- OS.SetScrollInfo (handle, OS.SB_CTL, info, true);
-
- /*
- * Feature in Windows. Using SIF_DISABLENOSCROLL,
- * SetScrollInfo () can change enabled and disabled
- * state of the scroll bar causing a scroll bar that
- * was disabled by the application to become enabled.
- * The fix is to disable the scroll bar (again) when
- * the application has disabled the scroll bar.
- */
- if ((state & DISABLED) != 0) {
- if (OS.IsWinCE) {
- OS.EnableWindow (handle, false);
- } else {
- OS.EnableScrollBar (handle, OS.SB_CTL, OS.ESB_DISABLE_BOTH);
- }
- }
-
- /*
- * Bug in Windows. If the thumb is resized when it has focus,
- * the flashing cursor that is used to show that the scroll bar has
- * focus is not moved. The fix is to post a fake WM_SETFOCUS to
- * get the scroll bar to recompute the size of the flashing cursor.
- */
- if (OS.GetFocus () == handle) {
- OS.PostMessage (handle, OS.WM_SETFOCUS, 0, 0);
- }
-}
-
-/**
- * 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>
- */
-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 value) {
- checkWidget ();
- if (value < 0) return;
- SCROLLINFO info = new SCROLLINFO ();
- info.cbSize = SCROLLINFO.sizeof;
- info.fMask = OS.SIF_POS;
- info.nPos = value;
- OS.SetScrollInfo (handle, OS.SB_CTL, info, true);
-}
-
-/**
- * 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
- */
-public void setThumb (int value) {
- checkWidget ();
-
- /* Position the thumb */
- if (value < 1) return;
- SCROLLINFO info = new SCROLLINFO ();
- info.cbSize = SCROLLINFO.sizeof;
- info.fMask = OS.SIF_PAGE | OS.SIF_RANGE | OS.SIF_DISABLENOSCROLL;
- OS.GetScrollInfo (handle, OS.SB_CTL, info);
- if (info.nMax - info.nMin - value < 0) return;
- info.nPage = value;
- if (info.nPage != 0) info.nPage++;
- OS.SetScrollInfo (handle, OS.SB_CTL, info, true);
-
- /*
- * Feature in Windows. Using SIF_DISABLENOSCROLL,
- * SetScrollInfo () can change enabled and disabled
- * state of the scroll bar causing a scroll bar that
- * was disabled by the application to become enabled.
- * The fix is to disable the scroll bar (again) when
- * the application has disabled the scroll bar.
- */
- if ((state & DISABLED) != 0) {
- if (OS.IsWinCE) {
- OS.EnableWindow (handle, false);
- } else {
- OS.EnableScrollBar (handle, OS.SB_CTL, OS.ESB_DISABLE_BOTH);
- }
- }
-
- /*
- * Bug in Windows. If the thumb is resized when it has focus,
- * the flashing cursor that is used to show that the scroll bar has
- * focus is not moved. The fix is to post a fake WM_SETFOCUS to
- * get the scroll bar to recompute the size of the flashing cursor.
- */
- if (OS.GetFocus () == handle) {
- OS.PostMessage (handle, OS.WM_SETFOCUS, 0, 0);
- }
-}
-
-/**
- * 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>
- */
-public void setValues (int selection, int minimum, int maximum, int thumb, int increment, int pageIncrement) {
- checkWidget ();
- if (selection < 0) return;
- if (minimum < 0) return;
- if (maximum < 0) return;
- if (thumb < 1) return;
- if (maximum - minimum - thumb < 0) return;
- if (increment < 1) return;
- if (pageIncrement < 1) return;
- this.increment = increment;
- this.pageIncrement = pageIncrement;
- SCROLLINFO info = new SCROLLINFO ();
- info.cbSize = SCROLLINFO.sizeof;
- info.fMask = OS.SIF_POS | OS.SIF_PAGE | OS.SIF_RANGE | OS.SIF_DISABLENOSCROLL;
- info.nPos = selection;
- info.nMin = minimum;
- info.nMax = maximum;
- info.nPage = thumb;
- if (info.nPage != 0) info.nPage++;
- OS.SetScrollInfo (handle, OS.SB_CTL, info, true);
-
- /*
- * Feature in Windows. Using SIF_DISABLENOSCROLL,
- * SetScrollInfo () can change enabled and disabled
- * state of the scroll bar causing a scroll bar that
- * was disabled by the application to become enabled.
- * The fix is to disable the scroll bar (again) when
- * the application has disabled the scroll bar.
- */
- if ((state & DISABLED) != 0) {
- if (OS.IsWinCE) {
- OS.EnableWindow (handle, false);
- } else {
- OS.EnableScrollBar (handle, OS.SB_CTL, OS.ESB_DISABLE_BOTH);
- }
- }
-
- /*
- * Bug in Windows. If the thumb is resized when it has focus,
- * the flashing cursor that is used to show that the scroll bar has
- * focus is not moved. The fix is to post a fake WM_SETFOCUS to
- * get the scroll bar to recompute the size of the flashing cursor.
- */
- if (OS.GetFocus () == handle) {
- OS.PostMessage (handle, OS.WM_SETFOCUS, 0, 0);
- }
-}
-
-int widgetExtStyle () {
- /*
- * Bug in Windows. If a scroll bar control is given a border,
- * dragging the scroll bar thumb eats away parts of the border
- * while the thumb is dragged. The fix is to clear WS_BORDER
- * for all scroll bars.
- */
- int bits = super.widgetExtStyle ();
- if ((style & SWT.BORDER) != 0) bits &= ~OS.WS_EX_CLIENTEDGE;
- return bits;
-}
-
-int widgetStyle () {
- int bits = super.widgetStyle () | OS.WS_TABSTOP;
- /*
- * Bug in Windows. If a scroll bar control is given a border,
- * dragging the scroll bar thumb eats away parts of the border
- * while the thumb is dragged. The fix is to clear WS_BORDER.
- */
- if ((style & SWT.BORDER) != 0) bits &= ~OS.WS_BORDER;
- if ((style & SWT.HORIZONTAL) != 0) return bits | OS.SBS_HORZ;
- return bits | OS.SBS_VERT;
-}
-
-TCHAR windowClass () {
- return ScrollBarClass;
-}
-
-int windowProc () {
- return ScrollBarProc;
-}
-
-LRESULT WM_LBUTTONDBLCLK (int wParam, int lParam) {
-
- /*
- * Feature in Windows. For some reason, capturing
- * the mouse after processing WM_LBUTTONDBLCLK for the
- * widget interferes with the normal mouse processing
- * for the widget. The fix is to avoid the automatic
- * mouse capture.
- */
-
- /*
- * Feature in Windows. Windows uses the WS_TABSTOP
- * style for the scroll bar to decide that focus
- * should be set during WM_LBUTTONDBLCLK. This is
- * not the desired behavior. The fix is to clear
- * and restore WS_TABSTOP so that Windows will not
- * assign focus.
- */
-
- int hwndCapture = OS.GetCapture ();
- int oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE);
- int newBits = oldBits & ~OS.WS_TABSTOP;
- OS.SetWindowLong (handle, OS.GWL_STYLE, newBits);
- LRESULT result = super.WM_LBUTTONDBLCLK (wParam, lParam);
- OS.SetWindowLong (handle, OS.GWL_STYLE, oldBits);
- if (OS.GetCapture () != hwndCapture) OS.SetCapture (hwndCapture);
- return result;
-}
-
-LRESULT WM_LBUTTONDOWN (int wParam, int lParam) {
-
- /*
- * Feature in Windows. For some reason, capturing
- * the mouse after processing WM_LBUTTONDOWN for the
- * widget interferes with the normal mouse processing
- * for the widget. The fix is to avoid the automatic
- * mouse capture.
- */
-
- /*
- * Feature in Windows. Windows uses the WS_TABSTOP
- * style for the scroll bar to decide that focus
- * should be set during WM_LBUTTONDOWN. This is
- * not the desired behavior. The fix is to clear
- * and restore WS_TABSTOP so that Windows will not
- * assign focus.
- */
-
- int hwndCapture = OS.GetCapture ();
- int oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE);
- int newBits = oldBits & ~OS.WS_TABSTOP;
- OS.SetWindowLong (handle, OS.GWL_STYLE, newBits);
- LRESULT result = super.WM_LBUTTONDOWN (wParam, lParam);
- OS.SetWindowLong (handle, OS.GWL_STYLE, oldBits);
- if (OS.GetCapture () != hwndCapture) OS.SetCapture (hwndCapture);
- return result;
-}
-
-LRESULT wmScrollChild (int wParam, int lParam) {
-
- /* Do nothing when scrolling is ending */
- int code = wParam & 0xFFFF;
- if (code == OS.SB_ENDSCROLL) return null;
-
- /* Move the thumb */
- Event event = new Event ();
- SCROLLINFO info = new SCROLLINFO ();
- info.cbSize = SCROLLINFO.sizeof;
- info.fMask = OS.SIF_TRACKPOS | OS.SIF_POS | OS.SIF_RANGE;
- OS.GetScrollInfo (handle, OS.SB_CTL, info);
- info.fMask = OS.SIF_POS;
- switch (code) {
- case OS.SB_THUMBPOSITION:
- /*
- * Do not set the detail field to DRAG to
- * indicate that the dragging has ended.
- */
- info.nPos = info.nTrackPos;
- break;
- case OS.SB_THUMBTRACK:
- event.detail = SWT.DRAG;
- info.nPos = info.nTrackPos;
- break;
- case OS.SB_TOP:
- event.detail = SWT.HOME;
- info.nPos = info.nMin;
- break;
- case OS.SB_BOTTOM:
- event.detail = SWT.END;
- info.nPos = info.nMax;
- break;
- case OS.SB_LINEDOWN:
- event.detail = SWT.ARROW_DOWN;
- info.nPos += increment;
- break;
- case OS.SB_LINEUP:
- event.detail = SWT.ARROW_UP;
- info.nPos = Math.max (info.nMin, info.nPos - increment);
- break;
- case OS.SB_PAGEDOWN:
- event.detail = SWT.PAGE_DOWN;
- info.nPos += pageIncrement;
- break;
- case OS.SB_PAGEUP:
- event.detail = SWT.PAGE_UP;
- info.nPos = Math.max (info.nMin, info.nPos - pageIncrement);
- break;
- }
- OS.SetScrollInfo (handle, OS.SB_CTL, info, true);
-
- /*
- * Send the event because WM_HSCROLL and
- * WM_VSCROLL are sent from a modal message
- * loop in Windows that is active when the
- * user is scrolling.
- */
- sendEvent (SWT.Selection, event);
- // the widget could be destroyed at this point
- return null;
-}
-
-}
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