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author | Felipe Heidrich <fheidric> | 2009-06-30 22:00:12 +0000 |
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committer | Felipe Heidrich <fheidric> | 2009-06-30 22:00:12 +0000 |
commit | f664d297f7bb009784868bf3fcf0b3e3bb9a646b (patch) | |
tree | 54012fe4929893eef4891c88cbbf5841272ff433 /bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Label.java | |
parent | bc18a5e014088ce811f09c603b88361094486062 (diff) | |
download | eclipse.platform.swt-f664d297f7bb009784868bf3fcf0b3e3bb9a646b.tar.gz eclipse.platform.swt-f664d297f7bb009784868bf3fcf0b3e3bb9a646b.tar.xz eclipse.platform.swt-f664d297f7bb009784868bf3fcf0b3e3bb9a646b.zip |
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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Label.java')
-rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Label.java | 686 |
1 files changed, 0 insertions, 686 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Label.java b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Label.java deleted file mode 100755 index 5d23c9515a..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Label.java +++ /dev/null @@ -1,686 +0,0 @@ -/******************************************************************************* - * 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.*; - -/** - * Instances of this class represent a non-selectable - * user interface object that displays a string or image. - * When SEPARATOR is specified, displays a single - * vertical or horizontal line. - * <p> - * Shadow styles are hints and may not be honored - * by the platform. To create a separator label - * with the default shadow style for the platform, - * do not specify a shadow style. - * </p> - * <dl> - * <dt><b>Styles:</b></dt> - * <dd>SEPARATOR, HORIZONTAL, VERTICAL</dd> - * <dd>SHADOW_IN, SHADOW_OUT, SHADOW_NONE</dd> - * <dd>CENTER, LEFT, RIGHT, WRAP</dd> - * <dt><b>Events:</b></dt> - * <dd>(none)</dd> - * </dl> - * <p> - * Note: Only one of SHADOW_IN, SHADOW_OUT and SHADOW_NONE may be specified. - * SHADOW_NONE is a HINT. Only one of HORIZONTAL and VERTICAL may be specified. - * Only one of CENTER, LEFT and RIGHT may be specified. - * </p><p> - * IMPORTANT: This class is intended to be subclassed <em>only</em> - * within the SWT implementation. - * </p> - * - * @see <a href="http://www.eclipse.org/swt/snippets/#label">Label 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> - * @noextend This class is not intended to be subclassed by clients. - */ -public class Label extends Control { - String text = ""; - Image image; - static final int MARGIN = 4; - static /*final*/ boolean IMAGE_AND_TEXT = false; - static final int /*long*/ LabelProc; - static final TCHAR LabelClass = new TCHAR (0, "STATIC", true); - static { - WNDCLASS lpWndClass = new WNDCLASS (); - OS.GetClassInfo (0, LabelClass, lpWndClass); - LabelProc = 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#SEPARATOR - * @see SWT#HORIZONTAL - * @see SWT#VERTICAL - * @see SWT#SHADOW_IN - * @see SWT#SHADOW_OUT - * @see SWT#SHADOW_NONE - * @see SWT#CENTER - * @see SWT#LEFT - * @see SWT#RIGHT - * @see SWT#WRAP - * @see Widget#checkSubclass - * @see Widget#getStyle - */ -public Label (Composite parent, int style) { - super (parent, checkStyle (style)); -} - -int /*long*/ callWindowProc (int /*long*/ hwnd, int msg, int /*long*/ wParam, int /*long*/ lParam) { - if (handle == 0) return 0; - return OS.CallWindowProc (LabelProc, hwnd, msg, wParam, lParam); -} - -static int checkStyle (int style) { - style |= SWT.NO_FOCUS; - if ((style & SWT.SEPARATOR) != 0) { - style = checkBits (style, SWT.VERTICAL, SWT.HORIZONTAL, 0, 0, 0, 0); - return checkBits (style, SWT.SHADOW_OUT, SWT.SHADOW_IN, SWT.SHADOW_NONE, 0, 0, 0); - } - return checkBits (style, SWT.LEFT, SWT.CENTER, SWT.RIGHT, 0, 0, 0); -} - -public Point computeSize (int wHint, int hHint, boolean changed) { - checkWidget (); - int width = 0, height = 0, border = getBorderWidth (); - if ((style & SWT.SEPARATOR) != 0) { - int lineWidth = OS.GetSystemMetrics (OS.SM_CXBORDER); - if ((style & SWT.HORIZONTAL) != 0) { - width = DEFAULT_WIDTH; height = lineWidth * 2; - } else { - width = lineWidth * 2; height = DEFAULT_HEIGHT; - } - if (wHint != SWT.DEFAULT) width = wHint; - if (hHint != SWT.DEFAULT) height = hHint; - width += border * 2; height += border * 2; - return new Point (width, height); - } - int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); - boolean drawText = true; - boolean drawImage = (bits & OS.SS_OWNERDRAW) == OS.SS_OWNERDRAW; - if (drawImage) { - if (image != null) { - Rectangle rect = image.getBounds(); - width += rect.width; - height += rect.height; - if (IMAGE_AND_TEXT) { - if (text.length () != 0) width += MARGIN; - } else { - drawText = false; - } - } - } - if (drawText) { - int /*long*/ hDC = OS.GetDC (handle); - int /*long*/ newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0); - int /*long*/ oldFont = OS.SelectObject (hDC, newFont); - int length = OS.GetWindowTextLength (handle); - if (length == 0) { - TEXTMETRIC tm = OS.IsUnicode ? (TEXTMETRIC) new TEXTMETRICW () : new TEXTMETRICA (); - OS.GetTextMetrics (hDC, tm); - height = Math.max (height, tm.tmHeight); - } else { - RECT rect = new RECT (); - int flags = OS.DT_CALCRECT | OS.DT_EDITCONTROL | OS.DT_EXPANDTABS; - if ((style & SWT.WRAP) != 0 && wHint != SWT.DEFAULT) { - flags |= OS.DT_WORDBREAK; - rect.right = Math.max (0, wHint - width); - } - TCHAR buffer = new TCHAR (getCodePage (), length + 1); - OS.GetWindowText (handle, buffer, length + 1); - OS.DrawText (hDC, buffer, length, rect, flags); - width += rect.right - rect.left; - height = Math.max (height, rect.bottom - rect.top); - } - if (newFont != 0) OS.SelectObject (hDC, oldFont); - OS.ReleaseDC (handle, hDC); - } - if (wHint != SWT.DEFAULT) width = wHint; - if (hHint != SWT.DEFAULT) height = hHint; - width += border * 2; - height += border * 2; - /* - * Feature in WinCE PPC. Text labels have a trim - * of one pixel wide on the right and left side. - * The fix is to increase the width to include - * this trim. - */ - if (OS.IsWinCE && !drawImage) width += 2; - return new Point (width, height); -} - -void createHandle () { - super.createHandle (); - state |= THEME_BACKGROUND; -} - -/** - * Returns a value which describes the position of the - * text or image in the receiver. The value will be one of - * <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code> - * unless the receiver is a <code>SEPARATOR</code> label, in - * which case, <code>NONE</code> is returned. - * - * @return the alignment - * - * @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 getAlignment () { - checkWidget (); - if ((style & SWT.SEPARATOR) != 0) return 0; - if ((style & SWT.LEFT) != 0) return SWT.LEFT; - if ((style & SWT.CENTER) != 0) return SWT.CENTER; - if ((style & SWT.RIGHT) != 0) return SWT.RIGHT; - return SWT.LEFT; -} - -/** - * Returns the receiver's image if it has one, or null - * if it does not. - * - * @return the receiver's image - * - * @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 Image getImage () { - checkWidget (); - return image; -} - -String getNameText () { - return getText (); -} - -/** - * Returns the receiver's text, which will be an empty - * string if it has never been set or if the receiver is - * a <code>SEPARATOR</code> label. - * - * @return the receiver's text - * - * @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 String getText () { - checkWidget (); - if ((style & SWT.SEPARATOR) != 0) return ""; - return text; -} - -boolean mnemonicHit (char key) { - Composite control = this.parent; - while (control != null) { - Control [] children = control._getChildren (); - int index = 0; - while (index < children.length) { - if (children [index] == this) break; - index++; - } - index++; - if (index < children.length) { - if (children [index].setFocus ()) return true; - } - control = control.parent; - } - return false; -} - -boolean mnemonicMatch (char key) { - char mnemonic = findMnemonic (getText ()); - if (mnemonic == '\0') return false; - return Character.toUpperCase (key) == Character.toUpperCase (mnemonic); -} - -void releaseWidget () { - super.releaseWidget (); - text = null; - image = null; -} - -/** - * Controls how text and images will be displayed in the receiver. - * The argument should be one of <code>LEFT</code>, <code>RIGHT</code> - * or <code>CENTER</code>. If the receiver is a <code>SEPARATOR</code> - * label, the argument is ignored and the alignment is not changed. - * - * @param alignment the new alignment - * - * @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 setAlignment (int alignment) { - checkWidget (); - if ((style & SWT.SEPARATOR) != 0) return; - if ((alignment & (SWT.LEFT | SWT.RIGHT | SWT.CENTER)) == 0) return; - style &= ~(SWT.LEFT | SWT.RIGHT | SWT.CENTER); - style |= alignment & (SWT.LEFT | SWT.RIGHT | SWT.CENTER); - int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); - if ((bits & OS.SS_OWNERDRAW) != OS.SS_OWNERDRAW) { - bits &= ~(OS.SS_LEFTNOWORDWRAP | OS.SS_CENTER | OS.SS_RIGHT); - if ((style & SWT.LEFT) != 0) { - if ((style & SWT.WRAP) != 0) { - bits |= OS.SS_LEFT; - } else { - bits |= OS.SS_LEFTNOWORDWRAP; - } - } - if ((style & SWT.CENTER) != 0) bits |= OS.SS_CENTER; - if ((style & SWT.RIGHT) != 0) bits |= OS.SS_RIGHT; - OS.SetWindowLong (handle, OS.GWL_STYLE, bits); - } - OS.InvalidateRect (handle, null, true); -} - -/** - * Sets the receiver's image to the argument, which may be - * null indicating that no image should be displayed. - * - * @param image the image to display on the receiver (may be null) - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_ARGUMENT - if the image 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 void setImage (Image image) { - checkWidget (); - if ((style & SWT.SEPARATOR) != 0) return; - if (image != null && image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); - this.image = image; - int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); - if ((bits & OS.SS_OWNERDRAW) != OS.SS_OWNERDRAW) { - bits &= ~(OS.SS_LEFTNOWORDWRAP | OS.SS_CENTER | OS.SS_RIGHT); - bits |= OS.SS_OWNERDRAW; - OS.SetWindowLong (handle, OS.GWL_STYLE, bits); - } - OS.InvalidateRect (handle, null, true); -} - -/** - * Sets the receiver's text. - * <p> - * This method sets the widget label. The label may include - * the mnemonic character and line delimiters. - * </p> - * <p> - * Mnemonics are indicated by an '&' that causes the next - * character to be the mnemonic. When the user presses a - * key sequence that matches the mnemonic, focus is assigned - * to the control that follows the label. On most platforms, - * the mnemonic appears underlined but may be emphasised in a - * platform specific manner. The mnemonic indicator character - * '&' can be escaped by doubling it in the string, causing - * a single '&' to be displayed. - * </p> - * - * @param string the new text - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the text 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> - */ -public void setText (String string) { - checkWidget (); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - if ((style & SWT.SEPARATOR) != 0) return; - /* - * Feature in Windows. For some reason, SetWindowText() for - * static controls redraws the control, even when the text has - * has not changed. The fix is to check for this case and do - * nothing. - */ - if (string.equals (text)) return; - text = string; - if (image == null || !IMAGE_AND_TEXT) { - int oldBits = OS.GetWindowLong (handle, OS.GWL_STYLE), newBits = oldBits; - newBits &= ~OS.SS_OWNERDRAW; - if ((style & SWT.LEFT) != 0) { - if ((style & SWT.WRAP) != 0) { - newBits |= OS.SS_LEFT; - } else { - newBits |= OS.SS_LEFTNOWORDWRAP; - } - } - if ((style & SWT.CENTER) != 0) newBits |= OS.SS_CENTER; - if ((style & SWT.RIGHT) != 0) newBits |= OS.SS_RIGHT; - if (oldBits != newBits) OS.SetWindowLong (handle, OS.GWL_STYLE, newBits); - } - string = Display.withCrLf (string); - TCHAR buffer = new TCHAR (getCodePage (), string, true); - OS.SetWindowText (handle, buffer); - /* - * Bug in Windows. For some reason, the HBRUSH that - * is returned from WM_CTRLCOLOR is misaligned when - * the label uses it to draw. If the brush is a solid - * color, this does not matter. However, if the brush - * contains an image, the image is misaligned. The - * fix is to draw the background in WM_ERASEBKGND. - */ - if (OS.COMCTL32_MAJOR < 6) { - if (findImageControl () != null) OS.InvalidateRect (handle, null, true); - } -} - -int widgetExtStyle () { - int bits = super.widgetExtStyle () & ~OS.WS_EX_CLIENTEDGE; - if ((style & SWT.BORDER) != 0) return bits | OS.WS_EX_STATICEDGE; - return bits; -} - -int widgetStyle () { - int bits = super.widgetStyle () | OS.SS_NOTIFY; - if ((style & SWT.SEPARATOR) != 0) return bits | OS.SS_OWNERDRAW; - if (OS.WIN32_VERSION >= OS.VERSION (5, 0)) { - if ((style & SWT.WRAP) != 0) bits |= OS.SS_EDITCONTROL; - } - if ((style & SWT.CENTER) != 0) return bits | OS.SS_CENTER; - if ((style & SWT.RIGHT) != 0) return bits | OS.SS_RIGHT; - if ((style & SWT.WRAP) != 0) return bits | OS.SS_LEFT; - return bits | OS.SS_LEFTNOWORDWRAP; -} - -TCHAR windowClass () { - return LabelClass; -} - -int /*long*/ windowProc () { - return LabelProc; -} - -LRESULT WM_ERASEBKGND (int /*long*/ wParam, int /*long*/ lParam) { - LRESULT result = super.WM_ERASEBKGND (wParam, lParam); - if (result != null) return result; - int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); - if ((bits & OS.SS_OWNERDRAW) == OS.SS_OWNERDRAW) { - return LRESULT.ONE; - } - /* - * Bug in Windows. For some reason, the HBRUSH that - * is returned from WM_CTRLCOLOR is misaligned when - * the label uses it to draw. If the brush is a solid - * color, this does not matter. However, if the brush - * contains an image, the image is misaligned. The - * fix is to draw the background in WM_ERASEBKGND. - */ - if (OS.COMCTL32_MAJOR < 6) { - if (findImageControl () != null) { - drawBackground (wParam); - return LRESULT.ONE; - } - } - return result; -} - -LRESULT WM_SIZE (int /*long*/ wParam, int /*long*/ lParam) { - LRESULT result = super.WM_SIZE (wParam, lParam); - if (isDisposed ()) return result; - if ((style & SWT.SEPARATOR) != 0) { - OS.InvalidateRect (handle, null, true); - return result; - } - int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); - if ((bits & OS.SS_OWNERDRAW) == OS.SS_OWNERDRAW) { - OS.InvalidateRect (handle, null, true); - return result; - } - /* - * Bug in Windows. For some reason, a label with - * style SS_LEFT, SS_CENTER or SS_RIGHT does not - * redraw the text in the new position when resized. - * Note that SS_LEFTNOWORDWRAP does not have the - * problem. The fix is to force the redraw. - */ - if ((bits & OS.SS_LEFTNOWORDWRAP) != OS.SS_LEFTNOWORDWRAP) { - OS.InvalidateRect (handle, null, true); - return result; - } - return result; -} - -LRESULT WM_UPDATEUISTATE (int /*long*/ wParam, int /*long*/ lParam) { - LRESULT result = super.WM_UPDATEUISTATE (wParam, lParam); - if (result != null) return result; - /* - * Feature in Windows. When WM_UPDATEUISTATE is sent to - * a static control, it sends WM_CTLCOLORSTATIC to get the - * foreground and background. If any drawing happens in - * WM_CTLCOLORSTATIC, it overwrites the contents of the control. - * The fix is draw the static without drawing the background - * and avoid the static window proc. - */ - boolean redraw = findImageControl () != null; - if (!redraw) { - if ((state & THEME_BACKGROUND) != 0) { - if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) { - redraw = findThemeControl () != null; - } - } - } - if (redraw) { - OS.InvalidateRect (handle, null, false); - int /*long*/ code = OS.DefWindowProc (handle, OS.WM_UPDATEUISTATE, wParam, lParam); - return new LRESULT (code); - } - return result; -} - -LRESULT wmColorChild (int /*long*/ wParam, int /*long*/ lParam) { - /* - * Bug in Windows. For some reason, the HBRUSH that - * is returned from WM_CTRLCOLOR is misaligned when - * the label uses it to draw. If the brush is a solid - * color, this does not matter. However, if the brush - * contains an image, the image is misaligned. The - * fix is to draw the background in WM_ERASEBKGND. - */ - LRESULT result = super.wmColorChild (wParam, lParam); - if (OS.COMCTL32_MAJOR < 6) { - int bits = OS.GetWindowLong (handle, OS.GWL_STYLE); - if ((bits & OS.SS_OWNERDRAW) != OS.SS_OWNERDRAW) { - if (findImageControl () != null) { - OS.SetBkMode (wParam, OS.TRANSPARENT); - return new LRESULT (OS.GetStockObject (OS.NULL_BRUSH)); - } - } - } - return result; -} - -LRESULT WM_PAINT (int /*long*/ wParam, int /*long*/ lParam) { - if (OS.IsWinCE) { - boolean drawImage = image != null; - boolean drawSeparator = (style & SWT.SEPARATOR) != 0 && (style & SWT.SHADOW_NONE) == 0; - if (drawImage || drawSeparator) { - LRESULT result = null; - PAINTSTRUCT ps = new PAINTSTRUCT (); - GCData data = new GCData (); - data.ps = ps; - data.hwnd = handle; - GC gc = new_GC (data); - if (gc != null) { - drawBackground (gc.handle); - RECT clientRect = new RECT(); - OS.GetClientRect (handle, clientRect); - if (drawSeparator) { - RECT rect = new RECT (); - int lineWidth = OS.GetSystemMetrics (OS.SM_CXBORDER); - int flags = (style & SWT.SHADOW_IN) != 0 ? OS.EDGE_SUNKEN : OS.EDGE_ETCHED; - if ((style & SWT.HORIZONTAL) != 0) { - int bottom = clientRect.top + Math.max (lineWidth * 2, (clientRect.bottom - clientRect.top) / 2); - OS.SetRect (rect, clientRect.left, clientRect.top, clientRect.right, bottom); - OS.DrawEdge (gc.handle, rect, flags, OS.BF_BOTTOM); - } else { - int right = clientRect.left + Math.max (lineWidth * 2, (clientRect.right - clientRect.left) / 2); - OS.SetRect (rect, clientRect.left, clientRect.top, right, clientRect.bottom); - OS.DrawEdge (gc.handle, rect, flags, OS.BF_RIGHT); - } - result = LRESULT.ONE; - } - if (drawImage) { - Rectangle imageBounds = image.getBounds (); - int x = 0; - if ((style & SWT.CENTER) != 0) { - x = Math.max (0, (clientRect.right - imageBounds.width) / 2); - } else { - if ((style & SWT.RIGHT) != 0) { - x = Math.max (0, (clientRect.right - imageBounds.width)); - } - } - gc.drawImage (image, x, Math.max (0, (clientRect.bottom - imageBounds.height) / 2)); - result = LRESULT.ONE; - } - int width = ps.right - ps.left; - int height = ps.bottom - ps.top; - if (width != 0 && height != 0) { - Event event = new Event (); - event.gc = gc; - event.x = ps.left; - event.y = ps.top; - event.width = width; - event.height = height; - sendEvent (SWT.Paint, event); - // widget could be disposed at this point - event.gc = null; - } - gc.dispose (); - } - return result; - } - } - return super.WM_PAINT(wParam, lParam); -} - -LRESULT wmDrawChild (int /*long*/ wParam, int /*long*/ lParam) { - DRAWITEMSTRUCT struct = new DRAWITEMSTRUCT (); - OS.MoveMemory (struct, lParam, DRAWITEMSTRUCT.sizeof); - drawBackground (struct.hDC); - if ((style & SWT.SEPARATOR) != 0) { - if ((style & SWT.SHADOW_NONE) != 0) return null; - RECT rect = new RECT (); - int lineWidth = OS.GetSystemMetrics (OS.SM_CXBORDER); - int flags = (style & SWT.SHADOW_IN) != 0 ? OS.EDGE_SUNKEN : OS.EDGE_ETCHED; - if ((style & SWT.HORIZONTAL) != 0) { - int bottom = struct.top + Math.max (lineWidth * 2, (struct.bottom - struct.top) / 2); - OS.SetRect (rect, struct.left, struct.top, struct.right, bottom); - OS.DrawEdge (struct.hDC, rect, flags, OS.BF_BOTTOM); - } else { - int right = struct.left + Math.max (lineWidth * 2, (struct.right - struct.left) / 2); - OS.SetRect (rect, struct.left, struct.top, right, struct.bottom); - OS.DrawEdge (struct.hDC, rect, flags, OS.BF_RIGHT); - } - } else { - int width = struct.right - struct.left; - int height = struct.bottom - struct.top; - if (width != 0 && height != 0) { - boolean drawImage = image != null; - boolean drawText = IMAGE_AND_TEXT && text.length () != 0; - int margin = drawText && drawImage ? MARGIN : 0; - int imageWidth = 0, imageHeight = 0; - if (drawImage) { - Rectangle rect = image.getBounds (); - imageWidth = rect.width; - imageHeight = rect.height; - } - RECT rect = null; - TCHAR buffer = null; - int textWidth = 0, textHeight = 0, flags = 0; - if (drawText) { - rect = new RECT (); - flags = OS.DT_CALCRECT | OS.DT_EDITCONTROL | OS.DT_EXPANDTABS; - if ((style & SWT.LEFT) != 0) flags |= OS.DT_LEFT; - if ((style & SWT.CENTER) != 0) flags |= OS.DT_CENTER; - if ((style & SWT.RIGHT) != 0) flags |= OS.DT_RIGHT; - if ((style & SWT.WRAP) != 0) { - flags |= OS.DT_WORDBREAK; - rect.right = Math.max (0, width - imageWidth - margin); - } - buffer = new TCHAR (getCodePage (), text, true); - OS.DrawText (struct.hDC, buffer, -1, rect, flags); - textWidth = rect.right - rect.left; - textHeight = rect.bottom - rect.top; - } - int x = 0; - if ((style & SWT.CENTER) != 0) { - x = Math.max (0, (width - imageWidth - textWidth - margin) / 2); - } else { - if ((style & SWT.RIGHT) != 0) { - x = width - imageWidth - textWidth - margin; - } - } - if (drawImage) { - GCData data = new GCData(); - data.device = display; - GC gc = GC.win32_new (struct.hDC, data); - Image image = getEnabled () ? this.image : new Image (display, this.image, SWT.IMAGE_DISABLE); - gc.drawImage (image, x, Math.max (0, (height - imageHeight) / 2)); - if (image != this.image) image.dispose (); - gc.dispose (); - x += imageWidth + margin; - } - if (drawText) { - flags &= ~OS.DT_CALCRECT; - rect.left = x; - rect.right += rect.left; - rect.top = Math.max (0, (height - textHeight) / 2); - rect.bottom += rect.top; - OS.DrawText (struct.hDC, buffer, -1, rect, flags); - } - } - } - return null; -} - -} |