--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2000, 2019 IBM Corporation and others.
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ * Paul Pazderski - Bug 205199: setImage(null) on Label overrides text
+ *******************************************************************************/
+package org.eclipse.swt.widgets;
+
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.internal.*;
+import org.eclipse.swt.internal.win32.*;
+
+/**
+ * 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 <em>not</em> intended to be subclassed.
+ * </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 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));
+}
+
+@Override
+long callWindowProc (long hwnd, int msg, long wParam, long lParam) {
+ if (handle == 0) return 0;
+ /*
+ * Feature in Windows 7. When the user double clicks
+ * on the label, the text of the label is copied to the
+ * clipboard. This is unwanted. The fix is to avoid
+ * calling the label window proc.
+ */
+ if (OS.WIN32_VERSION >= OS.VERSION(6, 1)) {
+ switch (msg) {
+ case OS.WM_LBUTTONDBLCLK: return OS.DefWindowProc (hwnd, msg, wParam, lParam);
+ }
+ }
+ 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);
+}
+
+@Override Point computeSizeInPixels (int wHint, int hHint, boolean changed) {
+ checkWidget ();
+ int width = 0, height = 0, border = getBorderWidthInPixels ();
+ 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.getBoundsInPixels();
+ width += rect.width;
+ height += rect.height;
+ if (IMAGE_AND_TEXT) {
+ if (text.length () != 0) width += MARGIN;
+ } else {
+ drawText = false;
+ }
+ }
+ }
+ if (drawText) {
+ long hDC = OS.GetDC (handle);
+ long newFont = OS.SendMessage (handle, OS.WM_GETFONT, 0, 0);
+ long oldFont = OS.SelectObject (hDC, newFont);
+ int length = OS.GetWindowTextLength (handle);
+ if (length == 0) {
+ TEXTMETRIC tm = new TEXTMETRIC ();
+ 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);
+ }
+ char [] buffer = new char [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;
+ return new Point (width, height);
+}
+
+@Override
+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;
+}
+
+@Override
+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;
+}
+
+@Override
+boolean mnemonicHit (char key) {
+ Control control = this;
+ while (control.parent != null) {
+ Control [] children = control.parent._getChildren ();
+ int index = 0;
+ while (index < children.length) {
+ if (children [index] == control) break;
+ index++;
+ }
+ index++;
+ if (index < children.length) {
+ if (children [index].setFocus ()) return true;
+ }
+ control = control.parent;
+ }
+ return false;
+}
+
+@Override
+boolean mnemonicMatch (char key) {
+ char mnemonic = findMnemonic (getText ());
+ if (mnemonic == '\0') return false;
+ return Character.toUpperCase (key) == Character.toUpperCase (mnemonic);
+}
+
+@Override
+void releaseWidget () {
+ super.releaseWidget ();
+ text = null;
+ image = null;
+}
+
+@Override
+int resolveTextDirection() {
+ return (style & SWT.SEPARATOR) != 0 ? SWT.NONE : BidiUtil.resolveTextDirection (text);
+}
+
+/**
+ * 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;
+ updateStyleBits(image == null);
+ 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>
+ * <p>
+ * Note: If control characters like '\n', '\t' etc. are used
+ * in the string, then the behavior is platform dependent.
+ * </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;
+ updateStyleBits(true);
+ /*
+ * 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;
+ string = Display.withCrLf (string);
+ TCHAR buffer = new TCHAR (getCodePage (), string, true);
+ OS.SetWindowText (handle, buffer);
+ if ((state & HAS_AUTO_DIRECTION) != 0) {
+ updateTextDirection (AUTO_TEXT_DIRECTION);
+ }
+}
+
+/**
+ * Update the control's static style bits to reflect the changed image vs. text
+ * situation.
+ *
+ * @param showText if <code>true</code> set required style bits to render text
+ * otherwise to render the image
+ */
+void updateStyleBits(boolean showText) {
+ if (showText) {
+ 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);
+ } else {
+ 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);
+ }
+ }
+}
+
+@Override
+int widgetExtStyle () {
+ int bits = super.widgetExtStyle () & ~OS.WS_EX_CLIENTEDGE;
+ if ((style & SWT.BORDER) != 0) return bits | OS.WS_EX_STATICEDGE;
+ return bits;
+}
+
+@Override
+int widgetStyle () {
+ int bits = super.widgetStyle () | OS.SS_NOTIFY;
+ if ((style & SWT.SEPARATOR) != 0) return bits | OS.SS_OWNERDRAW;
+ 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;
+}
+
+@Override
+TCHAR windowClass () {
+ return LabelClass;
+}
+
+@Override
+long windowProc () {
+ return LabelProc;
+}
+
+@Override
+LRESULT WM_ERASEBKGND (long wParam, 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;
+ }
+ return result;
+}
+
+@Override
+LRESULT WM_SIZE (long wParam, 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;
+}
+
+@Override
+LRESULT WM_UPDATEUISTATE (long wParam, 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.IsAppThemed ()) {
+ redraw = findThemeControl () != null;
+ }
+ }
+ }
+ if (redraw) {
+ OS.InvalidateRect (handle, null, false);
+ long code = OS.DefWindowProc (handle, OS.WM_UPDATEUISTATE, wParam, lParam);
+ return new LRESULT (code);
+ }
+ return result;
+}
+
+@Override
+LRESULT wmDrawChild (long wParam, 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.getBoundsInPixels ();
+ imageWidth = rect.width;
+ imageHeight = rect.height;
+ }
+ RECT rect = null;
+ char [] 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 = text.toCharArray ();
+ OS.DrawText (struct.hDC, buffer, buffer.length, 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, DPIUtil.autoScaleDown(x), DPIUtil.autoScaleDown(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, buffer.length, rect, flags);
+ }
+ }
+ }
+ return null;
+}
+
+}
Code Review / simantics / platform.git / blobdiff