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Diffstat (limited to 'jsf/plugins/org.eclipse.jst.pagedesigner/src/org/eclipse/jst/pagedesigner/css2/layout/FlowUtilities.java')
-rw-r--r--jsf/plugins/org.eclipse.jst.pagedesigner/src/org/eclipse/jst/pagedesigner/css2/layout/FlowUtilities.java271
1 files changed, 0 insertions, 271 deletions
diff --git a/jsf/plugins/org.eclipse.jst.pagedesigner/src/org/eclipse/jst/pagedesigner/css2/layout/FlowUtilities.java b/jsf/plugins/org.eclipse.jst.pagedesigner/src/org/eclipse/jst/pagedesigner/css2/layout/FlowUtilities.java
deleted file mode 100644
index 6cd9e194d..000000000
--- a/jsf/plugins/org.eclipse.jst.pagedesigner/src/org/eclipse/jst/pagedesigner/css2/layout/FlowUtilities.java
+++ /dev/null
@@ -1,271 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2006 Sybase, Inc. 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:
- * Sybase, Inc. - initial API and implementation
- *******************************************************************************/
-package org.eclipse.jst.pagedesigner.css2.layout;
-
-import java.text.BreakIterator;
-
-import org.eclipse.draw2d.FigureUtilities;
-import org.eclipse.draw2d.geometry.Dimension;
-import org.eclipse.swt.graphics.Font;
-import org.eclipse.swt.graphics.FontMetrics;
-
-/**
- * Utility class for FlowFigures.
- *
- */
-public final class FlowUtilities extends FigureUtilities {
- /**
- * Returns the number of characters from the specified String that will fit
- * in the available amount of space. An average character width can be
- * provided as a hint for faster calculation.
- *
- * @param frag
- * the TextFragmentBox
- * @param string
- * the String
- * @param font
- * the Font used for measuring
- * @param availableWidth
- * the available width in pixels
- * @param avg
- * 0.0, or an avg character width to use during calculation
- * @param wrapping
- * the word wrap style
- * @return the number of characters that will fit in the space
- */
- public static int setupFragmentBasedOnTextSpace(TextFragmentBox frag,
- String string, Font font, int availableWidth, float avg,
- int wrapping) {
- int result = getTextForSpace(string, font, availableWidth, avg,
- wrapping);
- frag._length = result;
- setupFragment(frag, font, string);
- return result;
- }
-
- /**
- * given the text string, font and available width and wrapping mode.
- * Calculate how much text can fit into.
- *
- * @param string
- * @param font
- * @param availableWidth
- * @param avg
- * @param wrapping
- * @return how much text can fit into
- */
- public static int getTextForSpace(String string, Font font,
- int availableWidth, float avg, int wrapping) {
- if (string.length() == 0) {
- return 0;
- }
-
- FontMetrics metrics = getFontMetrics(font);
- BreakIterator breakItr = BreakIterator.getLineInstance();
- breakItr.setText(string);
- int MIN, min, max;
- if (avg == 0.0) {
- avg = metrics.getAverageCharWidth();
- }
-
- int firstBreak = breakItr.next();
-
- int winNL = string.indexOf("\r\n"); //$NON-NLS-1$
- int macNL = string.indexOf('\r');
- int unixNL = string.indexOf('\n');
-
- MIN = min = (wrapping == CSSTextLayout.WORD_WRAP_HARD) ? firstBreak : 1;
- if (macNL == winNL) {
- macNL = -1; // If the Mac newline is just the prefix to the win NL,
- // ignore it
- }
-
- max = string.length() + 1;
-
- if (winNL != -1) {
- max = Math.min(max, winNL);
- min = Math.min(min, winNL);
- }
- if (unixNL != -1) {
- max = Math.min(max, unixNL);
- min = Math.min(min, unixNL);
- }
- if (macNL != -1) {
- max = Math.min(max, macNL);
- min = Math.min(min, macNL);
- }
-
- int origMax = max;
- // The size of the current guess
- int guess = 0, guessSize = 0;
-
- while ((max - min) > 1) {
- // Pick a new guess size
- // New guess is the last guess plus the missing width in pixels
- // divided by the average character size in pixels
- guess = guess + (int) ((availableWidth - guessSize) / avg);
-
- if (guess >= max) {
- guess = max - 1;
- }
- if (guess <= min) {
- guess = min + 1;
- }
-
- // Measure the current guess
- guessSize = getStringExtents2(string.substring(0, guess), font).width;
-
- if (guessSize <= availableWidth) {
- // We did not use the available width
- min = guess;
- } else {
- // We exceeded the available width
- max = guess;
- }
- }
-
- int result = string.length();
- switch (wrapping) {
- case CSSTextLayout.WORD_WRAP_HARD:
- if (min == string.length() || min == winNL || min == unixNL
- || min == macNL) {
- result = min;
- } else if (max == origMax
- && getStringExtents2(string.substring(0, max), font).width <= availableWidth) {
- result = max;
- } else {
- result = Math.max(MIN, breakItr.preceding(Math.min(max, string
- .length() - 1)));
- }
- break;
-
- case CSSTextLayout.WORD_WRAP_SOFT:
- if (min == string.length() || min == winNL || min == unixNL
- || min == macNL) {
- result = min;
- } else if (max == origMax
- && getStringExtents2(string.substring(0, max), font).width <= availableWidth) {
- result = max;
- } else if (breakItr.isBoundary(min)) {
- result = min;
- } else if (breakItr.isBoundary(Math.min(max, string.length() - 1))) {
- result = max;
- } else {
- result = breakItr.preceding(Math.min(max, string.length() - 1));
- }
- if (result <= 0) {
- result = min;
- }
- break;
- // case CSSTextLayout.WORD_WRAP_TRUNCATE:
- // if (min == string.length() || min == winNL || min == unixNL || min ==
- // macNL)
- // {
- // result = frag._length = min;
- // setupFragment(frag, font, string);
- // if (frag.getWidth() <= availableWidth)
- // return result;
- // min -= 1;
- // }
- // else if (max == origMax && getStringExtents(string.substring(0, max),
- // font).width <= availableWidth)
- // {
- // result = frag._length = max;
- // setupFragment(frag, font, string);
- // return result;
- // }
- // result = breakItr.preceding(Math.min(max + 1, string.length() - 1));
- // if (result <= 0)
- // {
- // ELLIPSIS_SIZE =
- // FigureUtilities.getStringExtents(CSSTextFigure.ELLIPSIS, font);
- // getTextForSpace(frag, string, font, availableWidth -
- // ELLIPSIS_SIZE.width, avg, CSSTextLayout.WORD_WRAP_SOFT);
- // //frag.length = min;
- // frag._truncated = true;
- // result = breakItr.following(min);
- // if (result == BreakIterator.DONE)
- // result = string.length();
- // }
- // else
- // {
- // frag._length = result;
- // }
- }
-
- return result;
- }
-
- /**
- * @param string
- * @param font
- * @param availableWidth
- * @param avg
- * @return the text width
- */
- public static int getTextInWidth(String string, Font font,
- int availableWidth, float avg) {
- if (string.length() == 0) {
- return 0;
- }
- int guess = 0;
- while (true) {
- Dimension a = getTextExtents(string.substring(0, guess), font);
- if (a.width >= availableWidth) {
- return guess;
- }
- guess++;
- if (guess == string.length()) {
- return guess;
- }
- }
- }
-
- /**
- * change the parent implementation of getStringExtents(). Don't expend the
- * 1 width. So empty string will not have any width.
- *
- * @param s
- * @param f
- * @return the dimension
- */
- public static Dimension getStringExtents2(String s, Font f) {
- return new Dimension(getStringDimension(s, f));
- }
-
- static void setupFragment(TextFragmentBox frag, Font f, String s) {
- // if (frag.length != s.length())
- // we don't skip whitespace here. since already truncated in
- // CSSTextLayout
-
- // while (frag.length > 0 &&
- // Character.isElementContentWhitespace(s.charAt(frag.length - 1)))
- // frag.length--;
- frag.setTextData(s.substring(0, frag._length));
- Dimension d = getStringExtents2(s.substring(0, frag._length), f);
- FontMetrics fm = getFontMetrics(f);
- frag.setHeight(fm.getHeight());
- frag.setAscent(fm.getAscent() + fm.getLeading());
- if (frag._length > 0
- && Character.isWhitespace(s.charAt(frag._length - 1))) {
- frag._isLastCharWhitespace = true;
- } else {
- frag._isLastCharWhitespace = false;
- }
- frag.setWidth(d.width);
- }
-
- private FlowUtilities()
- {
- // no instantiation
- }
-}

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