Mercurial > projects > dwt-mac
diff dwt/widgets/Group.d @ 0:380af2bdd8e5
Upload of whole dwt tree
author | Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> |
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date | Sat, 09 Aug 2008 17:00:02 +0200 |
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children | 649b8e223d5a |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwt/widgets/Group.d Sat Aug 09 17:00:02 2008 +0200 @@ -0,0 +1,202 @@ +/******************************************************************************* + * Copyright (c) 2000, 2007 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 + *******************************************************************************/ +module dwt.widgets.Group; + +import dwt.dwthelper.utils; + + +import dwt.DWT; +import dwt.DWTException; +import dwt.graphics.Rectangle; +import dwt.internal.cocoa.NSBox; +import dwt.internal.cocoa.NSRect; +import dwt.internal.cocoa.NSSize; +import dwt.internal.cocoa.NSString; +import dwt.internal.cocoa.NSView; +import dwt.internal.cocoa.SWTBox; +import dwt.internal.cocoa.SWTView; + +/** + * Instances of this class provide an etched border + * with an optional title. + * <p> + * Shadow styles are hints and may not be honoured + * by the platform. To create a group with the + * default shadow style for the platform, do not + * specify a shadow style. + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>SHADOW_ETCHED_IN, SHADOW_ETCHED_OUT, SHADOW_IN, SHADOW_OUT, SHADOW_NONE</dd> + * <dt><b>Events:</b></dt> + * <dd>(none)</dd> + * </dl> + * <p> + * Note: Only one of the above styles may be specified. + * </p><p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + */ +public class Group extends Composite { + SWTView contentView; + String text = ""; + +/** + * 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>DWT</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>DWT</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 DWTException <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 DWT#SHADOW_ETCHED_IN + * @see DWT#SHADOW_ETCHED_OUT + * @see DWT#SHADOW_IN + * @see DWT#SHADOW_OUT + * @see DWT#SHADOW_NONE + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Group (Composite parent, int style) { + super (parent, checkStyle (style)); +} + +static int checkStyle (int style) { + style |= DWT.NO_FOCUS; + /* + * Even though it is legal to create this widget + * with scroll bars, they serve no useful purpose + * because they do not automatically scroll the + * widget's client area. The fix is to clear + * the DWT style. + */ + return style & ~(DWT.H_SCROLL | DWT.V_SCROLL); +} + +protected void checkSubclass () { + if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); +} + +public Rectangle computeTrim (int x, int y, int width, int height) { + checkWidget (); + NSBox widget = (NSBox)view; + NSSize margins = widget.contentViewMargins(); + NSRect frame = contentView.frame(); + width += margins.width * 2; + height += margins.height * 2 + frame.y; + return super.computeTrim(x, y, width, height); +} + +NSView contentView () { + return contentView; +} + +void createHandle () { + SWTBox widget = (SWTBox)new SWTBox().alloc(); + widget.initWithFrame(new NSRect()); + widget.setTitle(NSString.stringWith("")); + widget.setTag(jniRef); + SWTView contentWidget = (SWTView)new SWTView().alloc(); + contentWidget.initWithFrame(new NSRect()); + contentWidget.setTag(jniRef); +// contentWidget.setDrawsBackground(false); + widget.setContentView(contentWidget); + contentView = contentWidget; + view = widget; + parent.contentView().addSubview_(widget); +} + +public Rectangle getClientArea () { + checkWidget(); + NSRect rect = contentView.bounds(); + return new Rectangle((int)rect.x, (int)rect.y, (int)rect.width, (int)rect.height); +} + +String getNameText () { + return getText (); +} + +/** + * Returns the receiver's text, which is the string that the + * is used as the <em>title</em>. If the text has not previously + * been set, returns an empty string. + * + * @return the text + * + * @exception DWTException <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 (); + return text; +} + +void releaseHandle () { + super.releaseHandle (); + if (contentView !is null) { + contentView.setTag(-1); + contentView.release(); + } + contentView = null; +} + +/** + * Sets the receiver's text, which is the string that will + * be displayed as the receiver's <em>title</em>, to the argument, + * which may not be null. The string may include the mnemonic character. + * </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 first child of the group. 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 DWTException <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 is null) error (DWT.ERROR_NULL_ARGUMENT); + text = string; + char [] buffer = new char [text.length ()]; + text.getChars (0, buffer.length, buffer, 0); + int length = fixMnemonic (buffer); + ((NSBox)view).setTitle(NSString.stringWithCharacters(buffer, length)); +} + +}