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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 | 784 |
1 files changed, 0 insertions, 784 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 a0773560c3..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Slider.java +++ /dev/null @@ -1,784 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2005 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.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 'selection' 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 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 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> - * 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 ScrollBar - */ -public class Slider extends Control { - int increment, pageIncrement; - boolean ignoreFocus; - 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 - * lists the style constants that are applicable to the class. - * Style bits are also inherited from superclasses. - * </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#HORIZONTAL - * @see SWT#VERTICAL - * @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>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 - * - * @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 hwnd, int msg, int wParam, int lParam) { - if (handle == 0) return 0; - /* - * Feature in Windows. Windows runs a modal message - * loop when the user drags a scroll bar. This means - * that mouse down events won't get delivered until - * after the loop finishes. The fix is to run any - * deferred messages, including mouse down messages - * before calling the scroll bar window proc. - */ - switch (msg) { - case OS.WM_LBUTTONDOWN: - case OS.WM_LBUTTONDBLCLK: - display.runDeferredEvents (); - } - return OS.CallWindowProc (ScrollBarProc, hwnd, 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); -} - -void enableWidget (boolean enabled) { - super.enableWidget (enabled); - if (!OS.IsWinCE) { - int flags = enabled ? OS.ESB_ENABLE_BOTH : OS.ESB_DISABLE_BOTH; - OS.EnableScrollBar (handle, OS.SB_CTL, flags); - } - if (enabled) { - state &= ~DISABLED; - } else { - state |= DISABLED; - } -} - -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 'selection', which 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 send a fake WM_SETFOCUS to - * get the scroll bar to recompute the size of the flashing cursor. - */ - if (OS.GetFocus () == handle) { - ignoreFocus = true; - OS.SendMessage (handle, OS.WM_SETFOCUS, 0, 0); - ignoreFocus = false; - } -} - -/** - * 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. 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, which must be greater than the current 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 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; - SetScrollInfo (handle, OS.SB_CTL, info, true); -} - -/** - * 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; - 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; - SetScrollInfo (handle, OS.SB_CTL, info, true); -} - -/** - * 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; -} - -boolean SetScrollInfo (int hwnd, int flags, SCROLLINFO info, boolean fRedraw) { - /* - * 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) fRedraw = false; - boolean result = OS.SetScrollInfo (hwnd, flags, info, fRedraw); - if ((state & DISABLED) != 0) { - OS.EnableWindow (handle, false); - if (!OS.IsWinCE) { - 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 send a fake WM_SETFOCUS - * to get the scroll bar to recompute the size of the flashing - * cursor. - */ - if (OS.GetFocus () == handle) { - ignoreFocus = true; - OS.SendMessage (handle, OS.WM_SETFOCUS, 0, 0); - ignoreFocus = false; - } - return result; -} - -/** - * Sets the 'selection', which 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 (); - SCROLLINFO info = new SCROLLINFO (); - info.cbSize = SCROLLINFO.sizeof; - info.fMask = OS.SIF_POS; - info.nPos = value; - 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. 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; - 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); - info.nPage = value; - if (info.nPage != 0) info.nPage++; - SetScrollInfo (handle, OS.SB_CTL, info, true); -} - -/** - * 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; - 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++; - SetScrollInfo (handle, OS.SB_CTL, info, true); -} - -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 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_KEYDOWN (int wParam, int lParam) { - LRESULT result = super.WM_KEYDOWN (wParam, lParam); - if (result != null) return result; - if ((style & SWT.VERTICAL) != 0) return result; - /* - * Bug in Windows. When a horizontal scroll bar is mirrored, - * the native control does not correctly swap the arrow keys. - * The fix is to swap them before calling the scroll bar window - * proc. - * - * NOTE: This fix is not ideal. It breaks when the bug is fixed - * in the operating system. - */ - if ((style & SWT.MIRRORED) != 0) { - switch (wParam) { - case OS.VK_LEFT: - case OS.VK_RIGHT: { - int key = wParam == OS.VK_LEFT ? OS.VK_RIGHT : OS.VK_LEFT; - int code = callWindowProc (handle, OS.WM_KEYDOWN, key, lParam); - return new LRESULT (code); - } - } - } - return result; -} - -LRESULT WM_LBUTTONDBLCLK (int wParam, int lParam) { - /* - * 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 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); - if (isDisposed ()) return LRESULT.ZERO; - OS.SetWindowLong (handle, OS.GWL_STYLE, oldBits); - if (result == LRESULT.ZERO) return result; - - /* - * Feature in Windows. Windows runs a modal message loop - * when the user drags a scroll bar that terminates when - * it sees an WM_LBUTTONUP. Unfortunately the WM_LBUTTONUP - * is consumed. The fix is to send a fake mouse up and - * release the automatic capture. - */ - if (!OS.IsWinCE) { - if (OS.GetCapture () == handle) OS.ReleaseCapture (); - if (!sendMouseEvent (SWT.MouseUp, 1, handle, OS.WM_LBUTTONUP, wParam, lParam)) { - return LRESULT.ZERO; - } - } - return result; -} - -LRESULT WM_LBUTTONDOWN (int wParam, int lParam) { - /* - * 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 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); - if (isDisposed ()) return LRESULT.ZERO; - OS.SetWindowLong (handle, OS.GWL_STYLE, oldBits); - if (result == LRESULT.ZERO) return result; - - /* - * Feature in Windows. Windows runs a modal message loop - * when the user drags a scroll bar that terminates when - * it sees an WM_LBUTTONUP. Unfortunately the WM_LBUTTONUP - * is consumed. The fix is to send a fake mouse up and - * release the automatic capture. - */ - if (!OS.IsWinCE) { - if (OS.GetCapture () == handle) OS.ReleaseCapture (); - if (!sendMouseEvent (SWT.MouseUp, 1, handle, OS.WM_LBUTTONUP, wParam, lParam)) { - return LRESULT.ONE; - } - } - return result; -} - -LRESULT WM_SETFOCUS (int wParam, int lParam) { - if (ignoreFocus) return null; - return super.WM_SETFOCUS (wParam, lParam); -} - -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: - event.detail = SWT.NONE; - 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); - - /* - * Feature in Windows. Windows runs a modal message - * loop when the user drags a scroll bar. This means - * that selection event must be sent because WM_HSCROLL - * and WM_VSCROLL are sent from the modal message loop - * so that they are delivered during inside the loop. - */ - sendEvent (SWT.Selection, event); - // the widget could be destroyed at this point - return null; -} - -} |