projects/dwt-win: dwt/custom/StyledText.d comparison

comparison dwt/custom/StyledText.d @ 246:fd9c62a2998e

Updater SWT 3.4M7 to 3.4

author	Frank Benoit <benoit@tionex.de>
date	Tue, 01 Jul 2008 10:15:59 +0200
parents	a59d51c12b42
children	dffb802cad03

comparison

equal deleted inserted replaced

-:d8c3d4a4f2b0
+:fd9c62a2998e
 /*******************************************************************************
-* Copyright (c) 2000, 2007 IBM Corporation and others.
+* Copyright (c) 2000, 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
 *
 * <dt><b>Events:</b><dd>ExtendedModify, LineGetBackground, LineGetSegments, LineGetStyle, Modify, Selection, Verify, VerifyKey
 * </dl>
 * </p><p>
 * IMPORTANT: This class is <em>not</em> intended to be subclassed.
 * </p>
+*
+* @see <a href="http://www.eclipse.org/swt/snippets/#styledtext">StyledText snippets</a>
+* @see <a href="http://www.eclipse.org/swt/examples.php">DWT Examples: CustomControlExample, TextEditor</a>
+* @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
 */
 public class StyledText : Canvas {
 alias Canvas.computeSize computeSize;
 Point clipboardSelection;           // x and y are start and end caret offsets of previous selection
 int selectionAnchor;                // position of selection anchor. 0 based offset from beginning of text
 Point doubleClickSelection;         // selection after last mouse double click
 bool editable = true;
 bool wordWrap = false;
-bool doubleClickEnabled = true; // see getDoubleClickEnabled
+bool doubleClickEnabled = true;  // see getDoubleClickEnabled
-bool overwrite = false;         // insert/overwrite edit mode
+bool overwrite = false;          // insert/overwrite edit mode
 int textLimit = -1;                 // limits the number of characters the user can type in the widget. Unlimited by default.
 int[int] keyActionMap;
 Color background = null;            // workaround for bug 4791
 Color foreground = null;            //
 Clipboard clipboard;
 int lastTextChangeNewCharCount;     // event for use in the
 int lastTextChangeReplaceLineCount; // text changed handler
 int lastTextChangeReplaceCharCount;
 int lastLineBottom;                 // the bottom pixel of the last line been replaced
 bool isMirrored_;
-bool bidiColoring = false;      // apply the BIDI algorithm on text segments of the same color
+bool bidiColoring = false;       // apply the BIDI algorithm on text segments of the same color
 Image leftCaretBitmap = null;
 Image rightCaretBitmap = null;
 int caretDirection = DWT.NULL;
 int caretWidth = 0;
 Caret defaultCaret = null;
 int pageWidth;                                  // width of a printer page in pixels
 int startPage;                                  // first page to print
 int endPage;                                    // last page to print
 int startLine;                                  // first (wrapped) line to print
 int endLine;                                    // last (wrapped) line to print
-bool singleLine;                                // widget single line mode
+bool singleLine;                             // widget single line mode
 Point selection = null;                 // selected text
-bool mirrored;                      // indicates the printing gc should be mirrored
+bool mirrored;                       // indicates the printing gc should be mirrored
 int lineSpacing;
 int printMargin;
 /**
 * Creates an instance of <code>Printing</code>.
 *
 * @param lineIndex the line index, the max value is lineCount. If
 * lineIndex is lineCount it returns the bottom pixel of the last line.
 * It means this function can be used to retrieve the bottom pixel of any line.
 *
+* @return the top pixel of a given line index
+*
 * @since 3.2
 */
 public int getLinePixel(int lineIndex) {
 checkWidget();
 int lineCount = content.getLineCount();
 return height + topMargin;
 }
 /**
 * Returns the line index for a y, relative to the client area.
 * The line index returned is always in the range 0..lineCount - 1.
+*
+* @param y the y-coordinate pixel
+*
+* @return the line index for a given y-coordinate pixel
 *
 * @since 3.2
 */
 public int getLineIndex(int y) {
 checkWidget();
 int start = event.start;
 int end = event.end;
 int length = text.length;
 if (length is ime.getCommitCount()) {
 content.replaceTextRange(start, end - start, "");
-caretOffset = start;
+caretOffset = ime.getCompositionOffset();
 caretWidth = 0;
 caretDirection = DWT.NULL;
 } else {
 content.replaceTextRange(start, end - start, text);
 caretOffset = ime.getCaretOffset();
 if (ime.getWideCaret()) {
+start = ime.getCompositionOffset();
 int lineIndex = getCaretLine();
 int lineOffset = content.getOffsetAtLine(lineIndex);
 TextLayout layout = renderer.getTextLayout(lineIndex);
 caretWidth = layout.getBounds(start - lineOffset, start + length - 1 - lineOffset).width;
 renderer.disposeTextLayout(layout);
 int lastLine = firstLine + lastTextChangeNewLineCount;
 int firstLineTop = getLinePixel(firstLine);
 int newLastLineBottom = getLinePixel(lastLine + 1);
 if (lastLineBottom !is newLastLineBottom) {
 super.redraw();
-if (wordWrap) setCaretLocation();
 } else {
 super.redraw(0, firstLineTop, clientAreaWidth, newLastLineBottom - firstLineTop, false);
 redrawLinesBullet(renderer.redrawLines);
 }
 }
 * <p>
 * The runnable may be run in a non-UI thread.
 * </p>
 *
 * @param printer the printer to print to
+*
+* @return a <code>Runnable</code> for printing the receiver's 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>
 * @exception IllegalArgumentException <ul>
 * The runnable may be run in a non-UI thread.
 * </p>
 *
 * @param printer the printer to print to
 * @param options print options to use during printing
+*
+* @return a <code>Runnable</code> for printing the receiver's 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>
 * @exception IllegalArgumentException <ul>
 internalRedrawRange(start, length);
 }
 /**
 * Removes the specified bidirectional segment listener.
 *
-* @param listener the listener
+* @param listener the listener which should no longer be notified
+*
 * @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>
 * @exception IllegalArgumentException <ul>
 *    <li>ERROR_NULL_ARGUMENT when listener is null</li>
 * </ul>
+*
 * @since 2.0
 */
 public void removeBidiSegmentListener(BidiSegmentListener listener) {
 checkWidget();
 if (listener is null) DWT.error(DWT.ERROR_NULL_ARGUMENT);
 removeListener(LineGetSegments, listener);
 }
 /**
 * Removes the specified extended modify listener.
 *
-* @param extendedModifyListener the listener
+* @param extendedModifyListener the listener which should no longer be notified
+*
 * @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>
 * @exception IllegalArgumentException <ul>
 removeListener(ExtendedModify, extendedModifyListener);
 }
 /**
 * Removes the specified line background listener.
 *
-* @param listener the listener
+* @param listener the listener which should no longer be notified
+*
 * @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>
 * @exception IllegalArgumentException <ul>
 removeListener(LineGetBackground, listener);
 }
 /**
 * Removes the specified line style listener.
 *
-* @param listener the listener
+* @param listener the listener which should no longer be notified
+*
 * @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>
 * @exception IllegalArgumentException <ul>
 removeListener(LineGetStyle, listener);
 }
 /**
 * Removes the specified modify listener.
 *
-* @param modifyListener the listener
+* @param modifyListener the listener which should no longer be notified
+*
 * @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>
 * @exception IllegalArgumentException <ul>
 removeListener(DWT.Modify, modifyListener);
 }
 /**
 * Removes the specified listener.
 *
-* @param listener the listener
+* @param listener the listener which should no longer be notified
+*
 * @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>
 * @exception IllegalArgumentException <ul>
 removeListener(DWT.Selection, listener);
 }
 /**
 * Removes the specified verify listener.
 *
-* @param verifyListener the listener
+* @param verifyListener the listener which should no longer be notified
+*
 * @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>
 * @exception IllegalArgumentException <ul>
 removeListener(DWT.Verify, verifyListener);
 }
 /**
 * Removes the specified key verify listener.
 *
-* @param listener the listener
+* @param listener the listener which should no longer be notified
+*
 * @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>
 * @exception IllegalArgumentException <ul>
 removeListener(VerifyKey, listener);
 }
 /**
 * Removes the specified word movement listener.
 *
-* @param listener the listener
+* @param listener the listener which should no longer be notified
+*
 * @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>
 * @exception IllegalArgumentException <ul>
 if (isBidiCaret()) createCaretBitmaps();
 caretDirection = DWT.NULL;
 setCaretLocation();
 super.redraw();
 }
-/**
-* @see dwt.widgets.Control#setForeground
-*/
 public override void setForeground(Color color) {
 checkWidget();
 foreground = color;
 super.setForeground(getForeground());
 super.redraw();
 * @param newLength length of new text
 */
 void updateSelection(int startOffset, int replacedLength, int newLength) {
 if (selection.y <= startOffset) {
 // selection ends before text change
+if (wordWrap) setCaretLocation();
 return;
 }
 if (selection.x < startOffset) {
 // clear selection fragment before text change
 internalRedrawRange(selection.x, startOffset - selection.x);

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comparison dwt/custom/StyledText.d @ 246:fd9c62a2998e