projects/dwt-mac: dwt/widgets/IME.d comparison

comparison dwt/widgets/IME.d @ 45:d8635bb48c7c

Merge with SWT 3.5

author	Jacob Carlborg <doob@me.com>
date	Mon, 01 Dec 2008 17:07:00 +0100
parents	db5a898b2119
children	e6f04eb518ae

comparison

equal deleted inserted replaced

-:ca5e494f2bbf
+:d8635bb48c7c
 /*******************************************************************************
-* Copyright (c) 2007 IBM Corporation and others.
+* Copyright (c) 2007, 2008 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
 *
 * Port to the D programming language:
-*     Jacob Carlborg <jacob.carlborg@gmail.com>
+*     Jacob Carlborg <doob@me.com>
 *******************************************************************************/
 module dwt.widgets.IME;
 import dwt.DWT;
+import dwt.DWTException;
+import dwt.graphics.Color;
+import dwt.graphics.Font;
 import dwt.graphics.TextStyle;
+import dwt.internal.cocoa.NSArray;
+import dwt.internal.cocoa.NSAttributedString;
+import dwt.internal.cocoa.NSColor;
+import dwt.internal.cocoa.NSDictionary;
+import dwt.internal.cocoa.NSFont;
+import dwt.internal.cocoa.NSMutableArray;
+import dwt.internal.cocoa.NSNumber;
+import dwt.internal.cocoa.NSPoint;
+import dwt.internal.cocoa.NSRange;
+import dwt.internal.cocoa.NSRect;
+import dwt.internal.cocoa.NSString;
+import dwt.internal.cocoa.NSView;
+import dwt.internal.cocoa.OS;
 import dwt.dwthelper.utils;
 import dwt.widgets.Canvas;
 import dwt.widgets.Widget;
+/**
+* Instances of this class represent input method editors.
+* These are typically in-line pre-edit text areas that allow
+* the user to compose characters from Far Eastern languages
+* such as Japanese, Chinese or Korean.
+*
+* <dl>
+* <dt><b>Styles:</b></dt>
+* <dd>(none)</dd>
+* <dt><b>Events:</b></dt>
+* <dd>ImeComposition</dd>
+* </dl>
+* <p>
+* IMPORTANT: This class is <em>not</em> intended to be subclassed.
+* </p>
+*
+* @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+*
+* @since 3.4
+*/
 public class IME : Widget {
 Canvas parent;
 int caretOffset;
 int startOffset;
 int commitCount;
 String text;
 int [] ranges;
 TextStyle [] styles;
+static final int UNDERLINE_THICK = 1 << 16;
 /**
 * Prevents uninitialized instances from being created outside the package.
 */
 this () {
 }
 /**
-*
+* Constructs a new instance of this class given its parent
-* @see DWT
+* 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 canvas 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 Widget#checkSubclass
+* @see Widget#getStyle
 */
 public this (Canvas parent, int style) {
 super (parent, style);
 this.parent = parent;
 createWidget ();
+}
+int /*long*/ attributedSubstringFromRange (int /*long*/ id, int /*long*/ sel, int /*long*/ rangePtr) {
+Event event = new Event ();
+event.detail = DWT.COMPOSITION_SELECTION;
+sendEvent (DWT.ImeComposition, event);
+NSRange range = new NSRange ();
+OS.memmove (range, rangePtr, NSRange.sizeof);
+int start = (int)/*64*/range.location;
+int end = (int)/*64*/(range.location + range.length);
+if (event.start <= start && start <= event.end && event.start <= end && end <= event.end) {
+NSString str = NSString.stringWith (event.text.substring(start - event.start, end - event.start));
+NSAttributedString attriStr = ((NSAttributedString)new NSAttributedString().alloc()).initWithString(str, null);
+attriStr.autorelease ();
+return attriStr.id;
+}
+return 0;
+}
+int /*long*/ characterIndexForPoint (int /*long*/ id, int /*long*/ sel, int /*long*/ point) {
+if (!isInlineEnabled ()) return OS.NSNotFound;
+NSPoint pt = new NSPoint ();
+OS.memmove (pt, point, NSPoint.sizeof);
+NSView view = parent.view;
+pt = view.window ().convertScreenToBase (pt);
+pt = view.convertPoint_fromView_ (pt, null);
+Event event = new Event ();
+event.detail = DWT.COMPOSITION_OFFSET;
+event.x = (int) pt.x;
+event.y = (int) pt.y;
+sendEvent (DWT.ImeComposition, event);
+int offset = event.index + event.count;
+return offset !is -1 ? offset : OS.NSNotFound;
 }
 void createWidget () {
 text = "";
 startOffset = -1;
 if (parent.getIME () is null) {
 parent.setIME (this);
 }
 }
+NSRect firstRectForCharacterRange(int /*long*/ id, int /*long*/ sel, int /*long*/ range) {
+NSRect rect = new NSRect ();
+Caret caret = parent.caret;
+if (caret !is null) {
+NSView view = parent.view;
+NSPoint pt = new NSPoint ();
+pt.x = caret.x;
+pt.y = caret.y + caret.height;
+pt = view.convertPoint_toView_ (pt, null);
+pt = view.window ().convertBaseToScreen (pt);
+rect.x = pt.x;
+rect.y = pt.y;
+rect.width = caret.width;
+rect.height = caret.height;
+}
+return rect;
+}
+/**
+* Returns the offset of the caret from the start of the document.
+* The caret is within the current composition.
+*
+* @return the caret offset
+*
+* @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 int getCaretOffset () {
 checkWidget ();
 return startOffset + caretOffset;
 }
+/**
+* Returns the commit count of the composition.  This is the
+* number of characters that have been composed.  When the
+* commit count is equal to the length of the composition
+* text, then the in-line edit operation is complete.
+*
+* @return the commit count
+*
+* @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>
+*
+* @see IME#getText
+*/
 public int getCommitCount () {
 checkWidget ();
 return commitCount;
 }
+/**
+* Returns the offset of the composition from the start of the document.
+* This is the start offset of the composition within the document and
+* in not changed by the input method editor itself during the in-line edit
+* session.
+*
+* @return the offset of the composition
+*
+* @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 int getCompositionOffset () {
 checkWidget ();
 return startOffset;
 }
+/**
+* Returns the ranges for the style that should be applied during the
+* in-line edit session.
+* <p>
+* The ranges array contains start and end pairs.  Each pair refers to
+* the corresponding style in the styles array.  For example, the pair
+* that starts at ranges[n] and ends at ranges[n+1] uses the style
+* at styles[n/2] returned by <code>getStyles()</code>.
+* </p>
+* @return the ranges for the styles
+*
+* @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>
+*
+* @see IME#getStyles
+*/
 public int [] getRanges () {
 checkWidget ();
-return ranges !is null ? ranges : new int [0];
+if (ranges is null) return new int [0];
-}
+int [] result = new int [ranges.length];
+for (int i = 0; i < result.length; i++) {
+result [i] = ranges [i] + startOffset;
+}
+return result;
+}
+/**
+* Returns the styles for the ranges.
+* <p>
+* The ranges array contains start and end pairs.  Each pair refers to
+* the corresponding style in the styles array.  For example, the pair
+* that starts at ranges[n] and ends at ranges[n+1] uses the style
+* at styles[n/2].
+* </p>
+*
+* @return the ranges for the styles
+*
+* @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>
+*
+* @see IME#getRanges
+*/
 public TextStyle [] getStyles () {
 checkWidget ();
-return styles !is null ? styles : new TextStyle [0];
+if (styles is null) return new TextStyle [0];
-}
+TextStyle [] result = new TextStyle [styles.length];
+System.arraycopy (styles, 0, result, 0, styles.length);
+return result;
+}
+TextStyle getStyle (NSDictionary attribs) {
+NSArray keys = attribs.allKeys ();
+int /*long*/ count = keys.count ();
+TextStyle style = new TextStyle ();
+for (int j = 0; j < count; j++) {
+NSString key = new NSString (keys.objectAtIndex (j));
+if (key.isEqualTo (OS.NSBackgroundColorAttributeName)) {
+NSColor color = new NSColor (attribs.objectForKey (key)).colorUsingColorSpaceName (OS.NSCalibratedRGBColorSpace);
+float [] rgbColor = new float []{(float)/*64*/color.redComponent(), (float)/*64*/color.greenComponent(), (float)/*64*/color.blueComponent(), (float)/*64*/color.alphaComponent()};
+style.background = Color.cocoa_new (display, rgbColor);
+} else if (key.isEqualTo (OS.NSForegroundColorAttributeName)) {
+NSColor color = new NSColor (attribs.objectForKey (key)).colorUsingColorSpaceName (OS.NSCalibratedRGBColorSpace);
+float [] rgbColor = new float []{(float)/*64*/color.redComponent(), (float)/*64*/color.greenComponent(), (float)/*64*/color.blueComponent(), (float)/*64*/color.alphaComponent()};
+style.foreground = Color.cocoa_new (display, rgbColor);
+} else if (key.isEqualTo (OS.NSUnderlineColorAttributeName)) {
+NSColor color = new NSColor (attribs.objectForKey (key)).colorUsingColorSpaceName (OS.NSCalibratedRGBColorSpace);
+float [] rgbColor = new float []{(float)/*64*/color.redComponent(), (float)/*64*/color.greenComponent(), (float)/*64*/color.blueComponent(), (float)/*64*/color.alphaComponent()};
+style.underlineColor = Color.cocoa_new (display, rgbColor);
+} else if (key.isEqualTo (OS.NSUnderlineStyleAttributeName)) {
+NSNumber value = new NSNumber (attribs.objectForKey (key));
+switch (value.intValue ()) {
+case OS.NSUnderlineStyleSingle: style.underlineStyle = DWT.UNDERLINE_SINGLE; break;
+case OS.NSUnderlineStyleDouble: style.underlineStyle = DWT.UNDERLINE_DOUBLE; break;
+case OS.NSUnderlineStyleThick: style.underlineStyle = UNDERLINE_THICK; break;
+}
+style.underline = value.intValue () !is OS.NSUnderlineStyleNone;
+} else if (key.isEqualTo (OS.NSStrikethroughColorAttributeName)) {
+NSColor color = new NSColor (attribs.objectForKey (key)).colorUsingColorSpaceName (OS.NSCalibratedRGBColorSpace);
+float [] rgbColor = new float []{(float)/*64*/color.redComponent(), (float)/*64*/color.greenComponent(), (float)/*64*/color.blueComponent(), (float)/*64*/color.alphaComponent()};
+style.strikeoutColor = Color.cocoa_new (display, rgbColor);
+} else if (key.isEqualTo (OS.NSStrikethroughStyleAttributeName)) {
+NSNumber value = new NSNumber (attribs.objectForKey (key));
+style.strikeout = value.intValue () !is OS.NSUnderlineStyleNone;
+} else if (key.isEqualTo (OS.NSFontAttributeName)) {
+NSFont font = new NSFont (attribs.objectForKey (key));
+style.font = Font.cocoa_new (display, font);
+}
+}
+return style;
+}
+/**
+* Returns the composition text.
+* <p>
+* The text for an IME is the characters in the widget that
+* are in the current composition. When the commit count is
+* equal to the length of the composition text, then the
+* in-line edit operation is complete.
+* </p>
+*
+* @return the widget 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;
 }
+/**
+* Returns <code>true</code> if the caret should be wide, and
+* <code>false</code> otherwise.  In some languages, for example
+* Korean, the caret is typically widened to the width of the
+* current character in the in-line edit session.
+*
+* @return the wide caret state
+*
+* @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 bool getWideCaret() {
 return false;
+}
+bool hasMarkedText (int /*long*/ id, int /*long*/ sel) {
+return text.length () !is 0;
+}
+bool insertText (int /*long*/ id, int /*long*/ sel, int /*long*/ string) {
+if (startOffset is -1) return true;
+NSString str = new NSString (string);
+if (str.isKindOfClass (OS.objc_getClass ("NSAttributedString"))) {
+str = new NSAttributedString (string).string ();
+}
+int length = (int)/*64*/str.length ();
+int end = startOffset + text.length ();
+ranges = null;
+styles = null;
+caretOffset = commitCount = length;
+Event event = new Event ();
+event.detail = DWT.COMPOSITION_CHANGED;
+event.start = startOffset;
+event.end = end;
+event.text = text = str.getString();
+sendEvent (DWT.ImeComposition, event);
+text = "";
+caretOffset = commitCount = 0;
+startOffset = -1;
+return event.doit;
+}
+bool isInlineEnabled () {
+return hooks (DWT.ImeComposition);
+}
+NSRange markedRange (int /*long*/ id, int /*long*/ sel) {
+if (startOffset is -1) {
+Event event = new Event ();
+event.detail = DWT.COMPOSITION_SELECTION;
+sendEvent (DWT.ImeComposition, event);
+startOffset = event.start;
+}
+NSRange range = new NSRange ();
+range.location = startOffset;
+range.length = text.length ();
+return range;
 }
 void releaseParent () {
 super.releaseParent ();
 if (this is parent.getIME ()) parent.setIME (null);
 text = null;
 styles = null;
 ranges = null;
 }
-}
+NSRange selectedRange (int /*long*/ id, int /*long*/ sel) {
+Event event = new Event ();
+event.detail = DWT.COMPOSITION_SELECTION;
+sendEvent (DWT.ImeComposition, event);
+NSRange range = new NSRange ();
+range.location = event.start;
+range.length = event.text.length ();
+return range;
+}
+/**
+* Sets the offset of the composition from the start of the document.
+* This is the start offset of the composition within the document and
+* in not changed by the input method editor itself during the in-line edit
+* session but may need to be changed by clients of the IME.  For example,
+* if during an in-line edit operation, a text editor inserts characters
+* above the IME, then the IME must be informed that the composition
+* offset has changed.
+*
+* @return the offset of the composition
+*
+* @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 setCompositionOffset (int offset) {
+checkWidget ();
+if (offset < 0) return;
+if (startOffset !is -1) {
+startOffset = offset;
+}
+}
+bool setMarkedText_selectedRange (int /*long*/ id, int /*long*/ sel, int /*long*/ string, int /*long*/ selRange) {
+if (!isInlineEnabled ()) return true;
+ranges = null;
+styles = null;
+caretOffset = commitCount = 0;
+int end = startOffset + text.length ();
+if (startOffset is -1) {
+Event event = new Event ();
+event.detail = DWT.COMPOSITION_SELECTION;
+sendEvent (DWT.ImeComposition, event);
+startOffset = event.start;
+end = event.end;
+}
+NSString str = new NSString (string);
+if (str.isKindOfClass (OS.objc_getClass ("NSAttributedString"))) {
+NSAttributedString attribStr = new NSAttributedString (string);
+str = attribStr.string ();
+int length = (int)/*64*/str.length ();
+styles = new TextStyle [length];
+ranges = new int [length * 2];
+NSRange rangeLimit = new NSRange (), effectiveRange = new NSRange ();
+rangeLimit.length = length;
+int rangeCount = 0;
+int /*long*/ ptr = OS.malloc (NSRange.sizeof);
+for (int i = 0; i < length;) {
+NSDictionary attribs = attribStr.attributesAtIndex(i, ptr, rangeLimit);
+OS.memmove (effectiveRange, ptr, NSRange.sizeof);
+i = (int)/*64*/(effectiveRange.location + effectiveRange.length);
+ranges [rangeCount * 2] = (int)/*64*/effectiveRange.location;
+ranges [rangeCount * 2 + 1] = (int)/*64*/(effectiveRange.location + effectiveRange.length - 1);
+styles [rangeCount++] = getStyle (attribs);
+}
+OS.free (ptr);
+if (rangeCount !is styles.length) {
+TextStyle [] newStyles = new TextStyle [rangeCount];
+System.arraycopy (styles, 0, newStyles, 0, newStyles.length);
+styles = newStyles;
+int [] newRanges = new int [rangeCount * 2];
+System.arraycopy (ranges, 0, newRanges, 0, newRanges.length);
+ranges = newRanges;
+}
+}
+int length = (int)/*64*/str.length ();
+if (ranges is null && length > 0) {
+styles = new TextStyle []{getStyle (display.markedAttributes)};
+ranges = new int[]{0, length - 1};
+}
+NSRange range = new NSRange ();
+OS.memmove (range, selRange, NSRange.sizeof);
+caretOffset = (int)/*64*/range.location;
+Event event = new Event ();
+event.detail = DWT.COMPOSITION_CHANGED;
+event.start = startOffset;
+event.end = end;
+event.text = text = str.getString();
+sendEvent (DWT.ImeComposition, event);
+return true;
+}
+int /*long*/ validAttributesForMarkedText (int /*long*/ id, int /*long*/ sel) {
+NSMutableArray attribs = NSMutableArray.arrayWithCapacity (6);
+attribs.addObject (new NSString (OS.NSForegroundColorAttributeName ()));
+attribs.addObject (new NSString (OS.NSBackgroundColorAttributeName ()));
+attribs.addObject (new NSString (OS.NSUnderlineStyleAttributeName ()));
+attribs.addObject (new NSString (OS.NSUnderlineColorAttributeName ()));
+attribs.addObject (new NSString (OS.NSStrikethroughStyleAttributeName ()));
+attribs.addObject (new NSString (OS.NSStrikethroughColorAttributeName ()));
+return attribs.id;
+}
+}

Mercurial > projects > dwt-mac

comparison dwt/widgets/IME.d @ 45:d8635bb48c7c