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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 | 824 |
1 files changed, 824 insertions, 0 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 new file mode 100644 index 0000000000..ca9c0bb0be --- /dev/null +++ b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/ExpandBar.java @@ -0,0 +1,824 @@ +/******************************************************************************* + * Copyright (c) 2000, 2009 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +package org.eclipse.swt.widgets; + +import org.eclipse.swt.internal.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 + * @see <a href="http://www.eclipse.org/swt/snippets/#expandbar">ExpandBar snippets</a> + * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> + * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> + * + * @since 3.2 + * @noextend This class is not intended to be subclassed by clients. + */ +public class ExpandBar extends Composite { + ExpandItem[] items; + int itemCount; + ExpandItem focusItem; + int spacing = 4; + int yCurrentScroll; + int /*long*/ 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 SWT#V_SCROLL + * @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 /*long*/ callWindowProc (int /*long*/ hwnd, int msg, int /*long*/ wParam, int /*long*/ 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 /*long*/ hDC = OS.GetDC (handle); + int /*long*/ hTheme = 0; + if (isAppThemed ()) { + hTheme = display.hExplorerBarTheme (); + } + int /*long*/ 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 (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 /*long*/ hDC, int /*long*/ hwnd, RECT rect) { + RECT rect2 = new RECT (); + OS.GetClientRect (handle, rect2); + OS.MapWindowPoints (handle, hwnd, rect2, 2); + OS.DrawThemeBackground (display.hExplorerBarTheme (), hDC, OS.EBP_NORMALGROUPBACKGROUND, 0, rect2, null); +} + +void drawWidget (GC gc, RECT clipRect) { + int /*long*/ hTheme = 0; + if (isAppThemed ()) { + hTheme = display.hExplorerBarTheme (); + } + 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 = (int)/*64*/OS.SendMessage (handle, OS.WM_QUERYUISTATE, 0, 0); + drawFocus = (uiState & OS.UISF_HIDEFOCUS) == 0; + } + int /*long*/ 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 (gc.handle, hCurrentFont); + } + if (foreground != -1) { + OS.SetTextColor (gc.handle, foreground); + } + } + for (int i = 0; i < itemCount; i++) { + ExpandItem item = items[i]; + item.drawItem (gc, hTheme, clipRect, item == focusItem && drawFocus); + } + if (hCurrentFont != 0) { + OS.SelectObject (gc.handle, oldFont); + if (hCurrentFont != hFont) OS.DeleteObject (hCurrentFont); + } +} + +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 /*long*/ hDC = OS.GetDC (handle); + int /*long*/ 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); +} + +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); + } +} + +public void setFont (Font font) { + super.setFont (font); + hFont = font != null ? font.handle : 0; + layoutItems (0, true); +} + +void setForegroundPixel (int pixel) { + super.setForegroundPixel (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. + * + * @param spacing the spacing 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); +} + +void showFocus (boolean up) { + RECT rect = new RECT(); + OS.GetClientRect (handle, rect); + int height = rect.bottom - rect.top; + int updateY = 0; + if (up) { + if (focusItem.y < 0) { + updateY = Math.min (yCurrentScroll, -focusItem.y); + } + } else { + int itemHeight = focusItem.y + getBandHeight (); + if (focusItem.expanded) { + if (height >= getBandHeight () + focusItem.height) { + itemHeight += focusItem.height; + } + } + if (itemHeight > height) { + updateY = height - itemHeight; + } + } + if (updateY != 0) { + yCurrentScroll = Math.max (0, yCurrentScroll - updateY); + if ((style & SWT.V_SCROLL) != 0) { + SCROLLINFO info = new SCROLLINFO (); + info.cbSize = SCROLLINFO.sizeof; + info.fMask = OS.SIF_POS; + info.nPos = yCurrentScroll; + OS.SetScrollInfo (handle, OS.SB_VERT, info, true); + } + OS.ScrollWindowEx (handle, 0, updateY, null, null, 0, null, OS.SW_SCROLLCHILDREN | OS.SW_INVALIDATE); + for (int i = 0; i < itemCount; i++) { + items [i].y += updateY; + } + } +} + +TCHAR windowClass () { + return display.windowClass; +} + +int /*long*/ windowProc () { + return display.windowProc; +} + +LRESULT WM_KEYDOWN (int /*long*/ wParam, int /*long*/ lParam) { + LRESULT result = super.WM_KEYDOWN (wParam, lParam); + if (result != null) return result; + if (focusItem == null) return result; + switch ((int)/*64*/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); + showFocus (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); + showFocus (false); + return LRESULT.ZERO; + } + break; + } + } + return result; +} + +LRESULT WM_KILLFOCUS (int /*long*/ wParam, int /*long*/ lParam) { + LRESULT result = super.WM_KILLFOCUS (wParam, lParam); + if (focusItem != null) focusItem.redraw (true); + return result; +} + +LRESULT WM_LBUTTONDOWN (int /*long*/ wParam, int /*long*/ lParam) { + LRESULT result = super.WM_LBUTTONDOWN (wParam, lParam); + if (result == LRESULT.ZERO) return result; + int x = OS.GET_X_LPARAM (lParam); + int y = OS.GET_Y_LPARAM (lParam); + 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 /*long*/ wParam, int /*long*/ lParam) { + LRESULT result = super.WM_LBUTTONUP (wParam, lParam); + if (result == LRESULT.ZERO) return result; + if (focusItem == null) return result; + int x = OS.GET_X_LPARAM (lParam); + int y = OS.GET_Y_LPARAM (lParam); + 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 /*long*/ wParam, int /*long*/ 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 /*long*/ wParam, int /*long*/ lParam) { + LRESULT result = super.WM_MOUSEMOVE (wParam, lParam); + if (result == LRESULT.ZERO) return result; + int x = OS.GET_X_LPARAM (lParam); + int y = OS.GET_Y_LPARAM (lParam); + 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_MOUSEWHEEL (int /*long*/ wParam, int /*long*/ lParam) { + return wmScrollWheel (true, wParam, lParam); +} + +LRESULT WM_PAINT (int /*long*/ wParam, int /*long*/ 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 /*long*/ wParam, int /*long*/ 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 /*long*/ wParam, int /*long*/ lParam) { + LRESULT result = super.WM_SETCURSOR (wParam, lParam); + if (result != null) return result; + int hitTest = (short) OS.LOWORD (lParam); + if (hitTest == OS.HTCLIENT) { + for (int i = 0; i < itemCount; i++) { + ExpandItem item = items [i]; + if (item.hover) { + int /*long*/ hCursor = OS.LoadCursor (0, OS.IDC_HAND); + OS.SetCursor (hCursor); + return LRESULT.ONE; + } + } + } + return result; +} + +LRESULT WM_SETFOCUS (int /*long*/ wParam, int /*long*/ lParam) { + LRESULT result = super.WM_SETFOCUS (wParam, lParam); + if (focusItem != null) focusItem.redraw (true); + return result; +} + +LRESULT WM_SIZE (int /*long*/ wParam, int /*long*/ 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 /*long*/ hwnd, int msg, int /*long*/ wParam, int /*long*/ 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; +} +} |