diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/ExpandBar.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/ExpandBar.java | 762 |
1 files changed, 0 insertions, 762 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/ExpandBar.java b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/ExpandBar.java deleted file mode 100644 index abc71a3548..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/ExpandBar.java +++ /dev/null @@ -1,762 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2006 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 support the layout of selectable - * expand bar items. - * <p> - * The item children that may be added to instances of this class - * must be of type <code>ExpandItem</code>. - * </p><p> - * <dl> - * <dt><b>Styles:</b></dt> - * <dd>V_SCROLL</dd> - * <dt><b>Events:</b></dt> - * <dd>Expand, Collapse</dd> - * </dl> - * </p><p> - * IMPORTANT: This class is <em>not</em> intended to be subclassed. - * </p> - * - * @see ExpandItem - * @see ExpandEvent - * @see ExpandListener - * @see ExpandAdapter - * - * @since 3.2 - */ -public class ExpandBar extends Composite { - ExpandItem[] items; - int itemCount; - ExpandItem focusItem; - int spacing; - int yCurrentScroll; - int hFont; - - -/** - * 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 Widget#checkSubclass - * @see Widget#getStyle - */ -public ExpandBar (Composite parent, int style) { - super (parent, checkStyle (style)); -} - -/** - * Adds the listener to the collection of listeners who will - * be notified when an item in the receiver is expanded or collapsed - * by sending it one of the messages defined in the <code>ExpandListener</code> - * interface. - * - * @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 ExpandListener - * @see #removeExpandListener - */ -public void addExpandListener (ExpandListener listener) { - checkWidget (); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.Expand, typedListener); - addListener (SWT.Collapse, typedListener); -} - -int callWindowProc (int hwnd, int msg, int wParam, int lParam) { - if (handle == 0) return 0; - return OS.DefWindowProc (hwnd, msg, wParam, lParam); -} - -protected void checkSubclass () { - if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); -} - -static int checkStyle (int style) { - style &= ~SWT.H_SCROLL; - return style | SWT.NO_BACKGROUND; -} - -public Point computeSize (int wHint, int hHint, boolean changed) { - checkWidget (); - int height = 0, width = 0; - if (wHint == SWT.DEFAULT || hHint == SWT.DEFAULT) { - if (itemCount > 0) { - int hDC = OS.GetDC (handle); - int hTheme = 0; - if (isAppThemed ()) { - hTheme = OS.OpenThemeData (handle, EXPLORERBAR); - } - int hCurrentFont = 0, oldFont = 0; - if (hTheme == 0) { - if (hFont != 0) { - hCurrentFont = hFont; - } else { - if (!OS.IsWinCE) { - NONCLIENTMETRICS info = OS.IsUnicode ? (NONCLIENTMETRICS) new NONCLIENTMETRICSW () : new NONCLIENTMETRICSA (); - info.cbSize = NONCLIENTMETRICS.sizeof; - if (OS.SystemParametersInfo (OS.SPI_GETNONCLIENTMETRICS, 0, info, 0)) { - LOGFONT logFont = OS.IsUnicode ? (LOGFONT) ((NONCLIENTMETRICSW)info).lfCaptionFont : ((NONCLIENTMETRICSA)info).lfCaptionFont; - hCurrentFont = OS.CreateFontIndirect (logFont); - } - } - } - if (hCurrentFont != 0) { - oldFont = OS.SelectObject (hDC, hCurrentFont); - } - } - height += spacing; - for (int i = 0; i < itemCount; i++) { - ExpandItem item = items [i]; - height += item.getHeaderHeight (); - if (item.expanded) height += item.height; - height += spacing; - width = Math.max (width, item.getPreferredWidth (hTheme, hDC)); - } - if (hCurrentFont != 0) { - OS.SelectObject (hDC, oldFont); - if (hCurrentFont != hFont) OS.DeleteObject (hCurrentFont); - } - OS.ReleaseDC (handle, hDC); - if (hTheme != 0) OS.CloseThemeData (hTheme); - } - } - if (width == 0) width = DEFAULT_WIDTH; - if (height == 0) height = DEFAULT_HEIGHT; - if (wHint != SWT.DEFAULT) width = wHint; - if (hHint != SWT.DEFAULT) height = hHint; - Rectangle trim = computeTrim (0, 0, width, height); - return new Point (trim.width, trim.height); -} - -void createHandle () { - super.createHandle (); - state &= ~CANVAS; - state |= TRACK_MOUSE; -} - -void createItem (ExpandItem item, int style, int index) { - if (!(0 <= index && index <= itemCount)) error (SWT.ERROR_INVALID_RANGE); - if (itemCount == items.length) { - ExpandItem [] newItems = new ExpandItem [itemCount + 4]; - System.arraycopy (items, 0, newItems, 0, items.length); - items = newItems; - } - System.arraycopy (items, index, items, index + 1, itemCount - index); - items [index] = item; - itemCount++; - if (focusItem == null) focusItem = item; - - RECT rect = new RECT (); - OS.GetWindowRect (handle, rect); - item.width = Math.max (0, rect.right - rect.left - spacing * 2); - layoutItems (index, true); -} - -void createWidget () { - super.createWidget (); - items = new ExpandItem [4]; - if (!isAppThemed ()) { - backgroundMode = SWT.INHERIT_DEFAULT; - } -} - -int defaultBackground() { - if (!isAppThemed ()) { - return OS.GetSysColor (OS.COLOR_WINDOW); - } - return super.defaultBackground(); -} - -void destroyItem (ExpandItem item) { - int index = 0; - while (index < itemCount) { - if (items [index] == item) break; - index++; - } - if (index == itemCount) return; - if (item == focusItem) { - int focusIndex = index > 0 ? index - 1 : 1; - if (focusIndex < itemCount) { - focusItem = items [focusIndex]; - focusItem.redraw (true); - } else { - focusItem = null; - } - } - System.arraycopy (items, index + 1, items, index, --itemCount - index); - items [itemCount] = null; - item.redraw (true); - layoutItems (index, true); -} - -void drawThemeBackground (int hDC, int hwnd, RECT rect) { - RECT rect2 = new RECT (); - OS.GetClientRect (handle, rect2); - OS.MapWindowPoints (handle, hwnd, rect2, 2); - int hTheme = OS.OpenThemeData (handle, EXPLORERBAR); - OS.DrawThemeBackground (hTheme, hDC, OS.EBP_NORMALGROUPBACKGROUND, 0, rect2, null); - OS.CloseThemeData (hTheme); -} - -void drawWidget (GC gc, RECT clipRect) { - int hTheme = 0; - if (isAppThemed ()) { - hTheme = OS.OpenThemeData (handle, EXPLORERBAR); - } - if (hTheme != 0) { - RECT rect = new RECT (); - OS.GetClientRect (handle, rect); - OS.DrawThemeBackground (hTheme, gc.handle, OS.EBP_HEADERBACKGROUND, 0, rect, clipRect); - } else { - drawBackground (gc.handle); - } - boolean drawFocus = false; - if (handle == OS.GetFocus ()) { - int uiState = OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); - drawFocus = (uiState & OS.UISF_HIDEFOCUS) == 0; - } - int hCaptionFont = 0, oldFont = 0; - if (hTheme == 0) { - if (!OS.IsWinCE && hFont == 0) { - NONCLIENTMETRICS info = OS.IsUnicode ? (NONCLIENTMETRICS) new NONCLIENTMETRICSW () : new NONCLIENTMETRICSA (); - info.cbSize = NONCLIENTMETRICS.sizeof; - if (OS.SystemParametersInfo (OS.SPI_GETNONCLIENTMETRICS, 0, info, 0)) { - LOGFONT logFont = OS.IsUnicode ? (LOGFONT) ((NONCLIENTMETRICSW)info).lfCaptionFont : ((NONCLIENTMETRICSA)info).lfCaptionFont; - hCaptionFont = OS.CreateFontIndirect (logFont); - oldFont = OS.SelectObject (gc.handle, hCaptionFont); - } - } - } - for (int i = 0; i < itemCount; i++) { - ExpandItem item = items[i]; - item.drawItem (gc, hTheme, clipRect, item == focusItem && drawFocus); - } - if (hCaptionFont != 0) { - OS.SelectObject (gc.handle, oldFont); - OS.DeleteObject (hCaptionFont); - } - if (hTheme != 0) OS.CloseThemeData (hTheme); -} - -Control findBackgroundControl () { - Control control = super.findBackgroundControl (); - if (!isAppThemed ()) { - if (control == null) control = this; - } - return control; -} - -Control findThemeControl () { - return isAppThemed () ? this : super.findThemeControl (); -} - -int getBandHeight () { - if (hFont == 0) return ExpandItem.CHEVRON_SIZE; - int hDC = OS.GetDC (handle); - int oldHFont = OS.SelectObject (hDC, hFont); - TEXTMETRIC lptm = OS.IsUnicode ? (TEXTMETRIC)new TEXTMETRICW() : new TEXTMETRICA(); - OS.GetTextMetrics (hDC, lptm); - OS.SelectObject (hDC, oldHFont); - OS.ReleaseDC (handle, hDC); - return Math.max (ExpandItem.CHEVRON_SIZE, lptm.tmHeight + 4); -} - -/** - * Returns the item at the given, zero-relative index in the - * receiver. Throws an exception if the index is out of range. - * - * @param index the index of the item to return - * @return the item at the given index - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</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> - */ -public ExpandItem getItem (int index) { - checkWidget (); - if (!(0 <= index && index < itemCount)) error (SWT.ERROR_INVALID_RANGE); - return items [index]; -} - -/** - * Returns the number of items contained in the receiver. - * - * @return the number of items - * - * @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 getItemCount () { - checkWidget (); - return itemCount; -} - -/** - * Returns an array of <code>ExpandItem</code>s which are the items - * in the receiver. - * <p> - * Note: This is not the actual structure used by the receiver - * to maintain its list of items, so modifying the array will - * not affect the receiver. - * </p> - * - * @return the items in the receiver - * - * @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 ExpandItem [] getItems () { - checkWidget (); - ExpandItem [] result = new ExpandItem [itemCount]; - System.arraycopy (items, 0, result, 0, itemCount); - return result; -} - -/** - * Returns the receiver's spacing. - * - * @return the spacing - * - * @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 getSpacing () { - checkWidget (); - return spacing; -} - -/** - * Searches the receiver's list starting at the first item - * (index 0) until an item is found that is equal to the - * argument, and returns the index of that item. If no item - * is found, returns -1. - * - * @param item the search item - * @return the index of the item - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the item is null</li> - * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</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> - */ -public int indexOf (ExpandItem item) { - checkWidget (); - if (item == null) error (SWT.ERROR_NULL_ARGUMENT); - for (int i = 0; i < itemCount; i++) { - if (items [i] == item) return i; - } - return -1; -} - -boolean isAppThemed () { - if (background != -1) return false; - if (foreground != -1) return false; - if (hFont != 0) return false; - return OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed (); -} - -void layoutItems (int index, boolean setScrollbar) { - if (index < itemCount) { - int y = spacing - yCurrentScroll; - for (int i = 0; i < index; i++) { - ExpandItem item = items [i]; - if (item.expanded) y += item.height; - y += item.getHeaderHeight () + spacing; - } - for (int i = index; i < itemCount; i++) { - ExpandItem item = items [i]; - item.setBounds (spacing, y, 0, 0, true, false); - if (item.expanded) y += item.height; - y += item.getHeaderHeight () + spacing; - } - } - if (setScrollbar) setScrollbar (); -} - -void releaseChildren (boolean destroy) { - if (items != null) { - for (int i=0; i<items.length; i++) { - ExpandItem item = items [i]; - if (item != null && !item.isDisposed ()) { - item.release (false); - } - } - items = null; - } - focusItem = null; - super.releaseChildren (destroy); -} - -/** - * Removes the listener from the collection of listeners who will - * be notified when items in the receiver are expanded or collapsed. - * - * @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 ExpandListener - * @see #addExpandListener - */ -public void removeExpandListener (ExpandListener listener) { - checkWidget (); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.Expand, listener); - eventTable.unhook (SWT.Collapse, listener); -} - -public void setFont (Font font) { - super.setFont (font); - hFont = font != null ? font.handle : 0; - layoutItems (0, true); -} - -void setBackgroundPixel (int pixel) { - super.setBackgroundPixel (pixel); - if (!OS.IsWinCE) { - int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE | OS.RDW_ALLCHILDREN; - OS.RedrawWindow (handle, null, 0, flags); - } -} - -void setScrollbar () { - if (itemCount == 0) return; - if ((style & SWT.V_SCROLL) == 0) return; - RECT rect = new RECT(); - OS.GetClientRect (handle, rect); - int height = rect.bottom - rect.top; - ExpandItem item = items [itemCount - 1]; - int maxHeight = item.y + getBandHeight () + spacing; - if (item.expanded) maxHeight += item.height; - - //claim bottom free space - if (yCurrentScroll > 0 && height > maxHeight) { - yCurrentScroll = Math.max (0, yCurrentScroll + maxHeight - height); - layoutItems (0, false); - } - maxHeight += yCurrentScroll; - - SCROLLINFO info = new SCROLLINFO (); - info.cbSize = SCROLLINFO.sizeof; - info.fMask = OS.SIF_RANGE | OS.SIF_PAGE | OS.SIF_POS; - info.nMin = 0; - info.nMax = maxHeight; - info.nPage = height; - info.nPos = Math.min (yCurrentScroll, info.nMax); - if (info.nPage != 0) info.nPage++; - OS.SetScrollInfo (handle, OS.SB_VERT, info, true); -} - -/** - * Sets the receiver's spacing. Spacing specifies the number of pixels allocated around - * each item. - * - * @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 setSpacing (int spacing) { - checkWidget (); - if (spacing < 0) return; - if (spacing == this.spacing) return; - this.spacing = spacing; - RECT rect = new RECT (); - OS.GetClientRect (handle, rect); - int width = Math.max (0, (rect.right - rect.left) - spacing * 2); - for (int i = 0; i < itemCount; i++) { - ExpandItem item = items[i]; - if (item.width != width) item.setBounds (0, 0, width, item.height, false, true); - } - layoutItems (0, true); - OS.InvalidateRect (handle, null, true); -} - -void showItem (ExpandItem item) { - Control control = item.control; - if (control != null && !control.isDisposed ()) { - control.setVisible (item.expanded); - } - item.redraw (true); - int index = indexOf (item); - layoutItems (index + 1, true); -} - -TCHAR windowClass () { - return display.windowClass; -} - -int windowProc () { - return display.windowProc; -} - -LRESULT WM_KEYDOWN (int wParam, int lParam) { - LRESULT result = super.WM_KEYDOWN (wParam, lParam); - if (result != null) return result; - if (focusItem == null) return result; - switch (wParam) { - case OS.VK_SPACE: - case OS.VK_RETURN: - Event event = new Event (); - event.item = focusItem; - sendEvent (focusItem.expanded ? SWT.Collapse : SWT.Expand, event); - focusItem.expanded = !focusItem.expanded; - showItem (focusItem); - return LRESULT.ZERO; - case OS.VK_UP: { - int focusIndex = indexOf (focusItem); - if (focusIndex > 0) { - focusItem.redraw (true); - focusItem = items [focusIndex - 1]; - focusItem.redraw (true); - return LRESULT.ZERO; - } - break; - } - case OS.VK_DOWN: { - int focusIndex = indexOf (focusItem); - if (focusIndex < itemCount - 1) { - focusItem.redraw (true); - focusItem = items [focusIndex + 1]; - focusItem.redraw (true); - return LRESULT.ZERO; - } - break; - } - } - return result; -} - -LRESULT WM_KILLFOCUS (int wParam, int lParam) { - LRESULT result = super.WM_KILLFOCUS (wParam, lParam); - if (focusItem != null) focusItem.redraw (true); - return result; -} - -LRESULT WM_LBUTTONDOWN (int wParam, int lParam) { - LRESULT result = super.WM_LBUTTONDOWN (wParam, lParam); - if (result == LRESULT.ZERO) return result; - int x = (short) (lParam & 0xFFFF); - int y = (short) (lParam >> 16); - for (int i = 0; i < itemCount; i++) { - ExpandItem item = items[i]; - boolean hover = item.isHover (x, y); - if (hover && focusItem != item) { - focusItem.redraw (true); - focusItem = item; - focusItem.redraw (true); - forceFocus (); - break; - } - } - return result; -} - -LRESULT WM_LBUTTONUP (int wParam, int lParam) { - LRESULT result = super.WM_LBUTTONUP (wParam, lParam); - if (result == LRESULT.ZERO) return result; - if (focusItem == null) return result; - int x = (short) (lParam & 0xFFFF); - int y = (short) (lParam >> 16); - boolean hover = focusItem.isHover (x, y); - if (hover) { - Event event = new Event (); - event.item = focusItem; - sendEvent (focusItem.expanded ? SWT.Collapse : SWT.Expand, event); - focusItem.expanded = !focusItem.expanded; - showItem (focusItem); - } - return result; -} - -LRESULT WM_MOUSELEAVE (int wParam, int lParam) { - LRESULT result = super.WM_MOUSELEAVE (wParam, lParam); - if (result != null) return result; - for (int i = 0; i < itemCount; i++) { - ExpandItem item = items [i]; - if (item.hover) { - item.hover = false; - item.redraw (false); - break; - } - } - return result; -} - -LRESULT WM_MOUSEMOVE (int wParam, int lParam) { - LRESULT result = super.WM_MOUSEMOVE (wParam, lParam); - if (result == LRESULT.ZERO) return result; - int x = (short) (lParam & 0xFFFF); - int y = (short) (lParam >> 16); - for (int i = 0; i < itemCount; i++) { - ExpandItem item = items [i]; - boolean hover = item.isHover (x, y); - if (item.hover != hover) { - item.hover = hover; - item.redraw (false); - } - } - return result; -} - -LRESULT WM_PAINT (int wParam, int lParam) { - PAINTSTRUCT ps = new PAINTSTRUCT (); - GCData data = new GCData (); - data.ps = ps; - data.hwnd = handle; - GC gc = new_GC (data); - if (gc != null) { - int width = ps.right - ps.left; - int height = ps.bottom - ps.top; - if (width != 0 && height != 0) { - RECT rect = new RECT (); - OS.SetRect (rect, ps.left, ps.top, ps.right, ps.bottom); - drawWidget (gc, rect); - if (hooks (SWT.Paint) || filters (SWT.Paint)) { - Event event = new Event (); - event.gc = gc; - event.x = rect.left; - event.y = rect.top; - event.width = width; - event.height = height; - sendEvent (SWT.Paint, event); - event.gc = null; - } - } - gc.dispose (); - } - return LRESULT.ZERO; -} - -LRESULT WM_PRINTCLIENT (int wParam, int lParam) { - LRESULT result = super.WM_PRINTCLIENT (wParam, lParam); - RECT rect = new RECT (); - OS.GetClientRect (handle, rect); - GCData data = new GCData (); - data.device = display; - data.foreground = getForegroundPixel (); - GC gc = GC.win32_new (wParam, data); - drawWidget (gc, rect); - gc.dispose (); - return result; -} - -LRESULT WM_SETCURSOR (int wParam, int lParam) { - LRESULT result = super.WM_SETCURSOR (wParam, lParam); - if (result != null) return result; - int hitTest = lParam & 0xFFFF; - if (hitTest == OS.HTCLIENT) { - for (int i = 0; i < itemCount; i++) { - ExpandItem item = items [i]; - if (item.hover) { - int hCursor = OS.LoadCursor (0, OS.IDC_HAND); - OS.SetCursor (hCursor); - return LRESULT.ONE; - } - } - } - return result; -} - -LRESULT WM_SETFOCUS (int wParam, int lParam) { - LRESULT result = super.WM_SETFOCUS (wParam, lParam); - if (focusItem != null) focusItem.redraw (true); - return result; -} - -LRESULT WM_SIZE (int wParam, int lParam) { - LRESULT result = super.WM_SIZE (wParam, lParam); - RECT rect = new RECT (); - OS.GetClientRect (handle, rect); - int width = Math.max (0, (rect.right - rect.left) - spacing * 2); - for (int i = 0; i < itemCount; i++) { - ExpandItem item = items[i]; - if (item.width != width) item.setBounds (0, 0, width, item.height, false, true); - } - setScrollbar (); - OS.InvalidateRect (handle, null, true); - return result; -} - -LRESULT wmScroll (ScrollBar bar, boolean update, int hwnd, int msg, int wParam, int lParam) { - LRESULT result = super.wmScroll (bar, true, hwnd, msg, wParam, lParam); - SCROLLINFO info = new SCROLLINFO (); - info.cbSize = SCROLLINFO.sizeof; - info.fMask = OS.SIF_POS; - OS.GetScrollInfo (handle, OS.SB_VERT, info); - int updateY = yCurrentScroll - info.nPos; - OS.ScrollWindowEx (handle, 0, updateY, null, null, 0, null, OS.SW_SCROLLCHILDREN | OS.SW_INVALIDATE); - yCurrentScroll = info.nPos; - if (updateY != 0) { - for (int i = 0; i < itemCount; i++) { - items [i].y += updateY; - } - } - return result; -} -}
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