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Custom JavaFX controls like a styled text component, ...
/*******************************************************************************
* Copyright (c) 2013 IBM & BestSolution.at 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:
* Tom Schindl - initial API and implementation
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.fx.ui.controls.styledtext;
import java.lang.ref.WeakReference;
import java.util.Collections;
import org.eclipse.fx.ui.controls.styledtext.StyledTextContent.TextChangeListener;
import org.eclipse.fx.ui.controls.styledtext.skin.StyledTextSkin;
import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.Nullable;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.geometry.Point2D;
import javafx.scene.Node;
import javafx.scene.control.Control;
import javafx.scene.control.Skin;
import javafx.scene.input.Clipboard;
import javafx.scene.input.DataFormat;
import javafx.scene.paint.Color;
import javafx.util.Callback;
/**
* Control which allows to implemented a code-editor
*
*
* This is an experimental component provided as a preview we'll improve and
* fix problems in up coming releases
*
*
* @noreference
*/
public class StyledTextArea extends Control {
class ContentProperty extends SimpleObjectProperty<@NonNull StyledTextContent> {
WeakReference oldContent;
public ContentProperty(Object bean, String name, @NonNull StyledTextContent initialValue) {
super(bean, name, initialValue);
invalidated();
}
@Override
protected void invalidated() {
if (this.oldContent != null) {
StyledTextContent content = this.oldContent.get();
if (content != null) {
content.removeTextChangeListener(StyledTextArea.this.textChangeListener);
}
}
StyledTextContent newContent = get();
this.oldContent = new WeakReference(newContent);
newContent.addTextChangeListener(StyledTextArea.this.textChangeListener);
}
}
@NonNull
final ObjectProperty<@NonNull StyledTextContent> contentProperty;
TextChangeListener textChangeListener = new TextChangeListener() {
@Override
public void textChanging(TextChangingEvent event) {
handleTextChanging(event);
}
@Override
public void textChanged(TextChangedEvent event) {
handleTextChanged(event);
}
@Override
public void textSet(TextChangedEvent event) {
handleTextSet(event);
}
};
@NonNull
private final StyledTextRenderer renderer = new StyledTextRenderer();
@NonNull
private final IntegerProperty caretOffsetProperty = new SimpleIntegerProperty(this, "caretOffset", -1); //$NON-NLS-1$
@NonNull
private final BooleanProperty lineRulerVisible = new SimpleBooleanProperty(this, "lineRulerVisible"); //$NON-NLS-1$
@NonNull
private final ObjectProperty currentSelection = new SimpleObjectProperty<>(this, "currentSelection"); //$NON-NLS-1$
@NonNull
private final ObjectProperty<@NonNull Callback<@NonNull StyledTextLine, @Nullable Node>> lineRulerGraphicNodeFactory = new SimpleObjectProperty<>(this, "lineRulerGraphicNodeFactory", e -> null); //$NON-NLS-1$
/**
* Represents a line shown in the control
*/
public interface StyledTextLine {
/**
* @return the plain text value
*/
public String getText();
/**
* @return the index of the line
*/
public int getLineIndex();
}
private int anchor;
private int lastTextChangeStart;
// private int lastTextChangeNewLineCount;
private int lastTextChangeNewCharCount;
// private int lastTextChangeReplaceLineCount;
private int lastTextChangeReplaceCharCount;
/**
* Create a new control
*/
public StyledTextArea() {
this.getStyleClass().add("styled-text-area"); //$NON-NLS-1$
this.contentProperty = new ContentProperty(this, "content", new DefaultContent()); //$NON-NLS-1$
setFocusTraversable(true);
}
@Override
public String getUserAgentStylesheet() {
return getClass().getResource("styledtextarea.css").toExternalForm(); //$NON-NLS-1$
}
void handleTextChanging(TextChangingEvent event) {
if (event.replaceCharCount < 0) {
event.offset += event.replaceCharCount;
event.replaceCharCount *= -1;
}
this.lastTextChangeStart = event.offset;
// this.lastTextChangeNewLineCount = event.newLineCount;
this.lastTextChangeNewCharCount = event.newCharCount;
// this.lastTextChangeReplaceLineCount = event.replaceLineCount;
this.lastTextChangeReplaceCharCount = event.replaceCharCount;
this.renderer.textChanging(event);
// Update the caret offset if it is greater than the length of the
// content.
// This is necessary since style range API may be called between the
// handleTextChanging and handleTextChanged events and this API sets the
// caretOffset.
int newEndOfText = getContent().getCharCount() - event.replaceCharCount + event.newCharCount;
if (getCaretOffset() > newEndOfText)
setCaretOffset(newEndOfText/* , SWT.DEFAULT */);
}
void handleTextSet(TextChangedEvent event) {
int newCharCount = getCharCount();
if( this.caretOffsetProperty.get() > newCharCount ) {
this.caretOffsetProperty.set(newCharCount);
}
// in SWT this is done in reset()
clearSelection();
if( getSkin() instanceof StyledTextSkin ) {
((StyledTextSkin)getSkin()).recalculateItems();
}
}
void handleTextChanged(TextChangedEvent event) {
// int firstLine = getContent().getLineAtOffset(lastTextChangeStart);
if (getSkin() instanceof StyledTextSkin) {
((StyledTextSkin) getSkin()).recalculateItems();
}
updateSelection(this.lastTextChangeStart, this.lastTextChangeReplaceCharCount, this.lastTextChangeNewCharCount);
// lastCharCount += lastTextChangeNewCharCount;
// lastCharCount -= lastTextChangeReplaceCharCount;
}
void updateSelection(int startOffset, int replacedLength, int newLength) {
if (getSelection().offset + getSelection().length > startOffset && getSelection().offset < startOffset + replacedLength) {
// selection intersects replaced text. set caret behind text change
setSelection(new TextSelection(startOffset + newLength, 0)/*, true, false*/);
} else {
// move selection to keep same text selected
setSelection(new TextSelection(getSelection().offset + newLength - replacedLength, getSelection().length)/*, true, false*/);
if( getSelection().length > 0 ) {
int delta = this.lastTextChangeNewCharCount - this.lastTextChangeReplaceCharCount;
this.caretOffsetProperty.set(Math.max(0,Math.min(getCharCount()-1,getCaretOffset() + delta)));
}
}
}
@Override
protected Skin createDefaultSkin() {
return new StyledTextSkin(this);
}
/**
* Show a line ruler on the left
*
* Default is false
*
*
* @return the property
*/
public @NonNull BooleanProperty lineRulerVisibleProperty() {
return this.lineRulerVisible;
}
/**
* Show/hide the line ruler
*
* Default is false
*
*
* @param lineRulerVisible
* the new state
*/
public void setLineRulerVisible(boolean lineRulerVisible) {
lineRulerVisibleProperty().set(lineRulerVisible);
}
/**
* Is line ruler shown
*
* Default is false
*
*
* @return the current state
*/
public boolean isLineRulerVisible() {
return lineRulerVisibleProperty().get();
}
/**
* The current caret offset
*
* @return the property
*/
public @NonNull IntegerProperty caretOffsetProperty() {
return this.caretOffsetProperty;
}
/**
* Set the current caret offset
*
* @param offset
* the new offset
*/
public void setCaretOffset(int offset) {
this.anchor = offset;
caretOffsetProperty().set(offset);
clearSelection();
}
/**
* Setting the caret offset and updateing the selection if requested
*
* @param offset
* the offset
* @param selection
* true to update the current selection
* @deprecated internal API for now
*/
@Deprecated
public void impl_setCaretOffset(int offset, boolean selection) {
if (selection) {
caretOffsetProperty().set(offset);
if (offset > this.anchor) {
setSelectionRange(this.anchor, offset - this.anchor);
} else {
setSelectionRange(offset, this.anchor - offset);
}
} else {
setCaretOffset(offset);
}
}
/**
* @return the current caret offset
*/
public int getCaretOffset() {
return caretOffsetProperty().get();
}
/**
* Set the content
*
* @param content
* the content
*/
public void setContent(@NonNull StyledTextContent content) {
contentProperty().set(content);
}
/**
* Access the content
*
* @return the content
*/
public @NonNull StyledTextContent getContent() {
return contentProperty().get();
}
/**
* The content property
*
* @return the property
*/
public @NonNull ObjectProperty<@NonNull StyledTextContent> contentProperty() {
return this.contentProperty;
}
/**
* Set the style range
*
* @param range
* the range
*/
public void setStyleRange(@Nullable StyleRange range) {
if (range != null) {
if (range.isUnstyled()) {
setStyleRanges(range.start, range.length, null, null, false);
} else {
setStyleRanges(range.start, 0, null, new StyleRange[] { range }, false);
}
} else {
setStyleRanges(0, 0, null, null, true);
}
}
/**
* Set the style range
*
* @param start
* the start
* @param length
* the length
* @param ranges
* the ranges
* @param styles
* the style ranges
*/
public void setStyleRanges(int start, int length, int[] ranges, @Nullable StyleRange[] styles) {
if (ranges == null || styles == null) {
setStyleRanges(start, length, null, null, false);
} else {
setStyleRanges(start, length, ranges, styles, false);
}
}
/**
* Set the style ranges
*
* @param ranges
* the ranges
* @param styles
* the style ranges
*/
public void setStyleRanges(int[] ranges, @Nullable StyleRange[] styles) {
if (ranges == null || styles == null) {
setStyleRanges(0, 0, null, null, true);
} else {
setStyleRanges(0, 0, ranges, styles, true);
}
}
/**
* Set the style ranges
*
* @param ranges
* the ranges
*/
public void setStyleRanges(@Nullable StyleRange... ranges) {
setStyleRanges(0, 0, null, ranges, true);
}
/**
* Replace style ranges
*
* @param start
* the start
* @param length
* the length
* @param ranges
* the new ranges
*/
public void replaceStyleRanges(int start, int length, @Nullable StyleRange[] ranges) {
if (ranges == null)
throw new IllegalArgumentException();
setStyleRanges(start, length, null, ranges, false);
}
void setStyleRanges(int start, int length, int[] ranges, StyleRange[] styles, boolean reset) {
int charCount = getContent().getCharCount();
int end = start + length;
if (start > end || start < 0) {
throw new IllegalArgumentException();
}
if (styles != null) {
if (end > charCount) {
throw new IllegalArgumentException();
}
if (ranges != null) {
if (ranges.length != styles.length << 1)
throw new IllegalArgumentException();
}
int lastOffset = 0;
// boolean variableHeight = false;
for (int i = 0; i < styles.length; i++) {
if (styles[i] == null) {
throw new IllegalArgumentException();
}
int rangeStart, rangeLength;
if (ranges != null) {
rangeStart = ranges[i << 1];
rangeLength = ranges[(i << 1) + 1];
} else {
rangeStart = styles[i].start;
rangeLength = styles[i].length;
}
if (rangeLength < 0) {
throw new IllegalArgumentException();
}
if (!(0 <= rangeStart && rangeStart + rangeLength <= charCount)) {
throw new IllegalArgumentException();
}
if (lastOffset > rangeStart) {
throw new IllegalArgumentException();
}
// variableHeight |= styles[i].isVariableHeight();
lastOffset = rangeStart + rangeLength;
}
// if (variableHeight) setVariableLineHeight();
}
@SuppressWarnings("unused")
int rangeStart = start, rangeEnd = end;
if (styles != null && styles.length > 0) {
if (ranges != null) {
rangeStart = ranges[0];
rangeEnd = ranges[ranges.length - 2] + ranges[ranges.length - 1];
} else {
rangeStart = styles[0].start;
rangeEnd = styles[styles.length - 1].start + styles[styles.length - 1].length;
}
}
if (reset) {
this.renderer.setStyleRanges(null, null);
} else {
this.renderer.updateRanges(start, length, length);
}
if (styles != null && styles.length > 0) {
this.renderer.setStyleRanges(ranges, styles);
}
if (getSkin() instanceof StyledTextSkin) {
((StyledTextSkin) getSkin()).recalculateItems();
}
}
/**
* Access style ranges in the specified segment
*
* @param start
* the start
* @param length
* the length
* @param includeRanges
* include ranges
* @return the ranges
*/
public StyleRange[] getStyleRanges(int start, int length, boolean includeRanges) {
StyleRange[] ranges = this.renderer.getStyleRanges(start, length, includeRanges);
if (ranges != null)
return ranges;
return new StyleRange[0];
}
/**
* The style range at the given offset
*
* @param offset
* the offset
* @return the style range
*/
public StyleRange getStyleRangeAtOffset(int offset) {
if (offset < 0 || offset >= getCharCount()) {
throw new IllegalArgumentException();
}
// if (!isListening(ST.LineGetStyle)) {
StyleRange[] ranges = this.renderer.getStyleRanges(offset, 1, true);
if (ranges != null)
return ranges[0];
// }
return null;
}
/**
* @return the current char count
*/
public int getCharCount() {
return getContent().getCharCount();
}
static class LineInfo {
int flags;
Color background;
int alignment;
int indent;
int wrapIndent;
boolean justify;
int[] segments;
char[] segmentsChars;
int[] tabStops;
public LineInfo() {
}
public LineInfo(LineInfo info) {
if (info != null) {
this.flags = info.flags;
this.background = info.background;
this.alignment = info.alignment;
this.indent = info.indent;
this.wrapIndent = info.wrapIndent;
this.justify = info.justify;
this.segments = info.segments;
this.segmentsChars = info.segmentsChars;
this.tabStops = info.tabStops;
}
}
}
/*******************************************************************************
* Copyright (c) 2000, 2011 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
*******************************************************************************/
class StyledTextRenderer {
StyleRange[] stylesSet;
int stylesSetCount = 0;
int[] ranges;
int styleCount;
StyleRange[] styles;
boolean hasLinks;
LineInfo[] lines;
int lineCount;
int[] lineWidth;
int[] lineHeight;
final static boolean COMPACT_STYLES = true;
final static boolean MERGE_STYLES = true;
final static int GROW = 32;
void setStyleRanges(int[] newRanges, StyleRange[] newStyles) {
int[] _newRanges = newRanges;
StyleRange[] _newStyles = newStyles;
if (_newStyles == null) {
this.stylesSetCount = this.styleCount = 0;
this.ranges = null;
this.styles = null;
this.stylesSet = null;
this.hasLinks = false;
return;
}
if (_newRanges == null && COMPACT_STYLES) {
_newRanges = new int[_newStyles.length << 1];
StyleRange[] tmpStyles = new StyleRange[_newStyles.length];
if (this.stylesSet == null)
this.stylesSet = new StyleRange[4];
for (int i = 0, j = 0; i < _newStyles.length; i++) {
StyleRange newStyle = _newStyles[i];
_newRanges[j++] = newStyle.start;
_newRanges[j++] = newStyle.length;
int index = 0;
while (index < this.stylesSetCount) {
if (this.stylesSet[index].similarTo(newStyle))
break;
index++;
}
if (index == this.stylesSetCount) {
if (this.stylesSetCount == this.stylesSet.length) {
StyleRange[] tmpStylesSet = new StyleRange[this.stylesSetCount + 4];
System.arraycopy(this.stylesSet, 0, tmpStylesSet, 0, this.stylesSetCount);
this.stylesSet = tmpStylesSet;
}
this.stylesSet[this.stylesSetCount++] = newStyle;
}
tmpStyles[i] = this.stylesSet[index];
}
_newStyles = tmpStyles;
}
if (this.styleCount == 0) {
if (_newRanges != null) {
this.ranges = new int[_newRanges.length];
System.arraycopy(_newRanges, 0, this.ranges, 0, this.ranges.length);
}
this.styles = new StyleRange[_newStyles.length];
System.arraycopy(_newStyles, 0, this.styles, 0, this.styles.length);
this.styleCount = _newStyles.length;
return;
}
if (_newRanges != null && this.ranges == null) {
this.ranges = new int[this.styles.length << 1];
for (int i = 0, j = 0; i < this.styleCount; i++) {
this.ranges[j++] = this.styles[i].start;
this.ranges[j++] = this.styles[i].length;
}
}
if (_newRanges == null && this.ranges != null) {
_newRanges = new int[_newStyles.length << 1];
for (int i = 0, j = 0; i < _newStyles.length; i++) {
_newRanges[j++] = _newStyles[i].start;
_newRanges[j++] = _newStyles[i].length;
}
}
if (this.ranges != null && _newRanges != null) {
int rangeCount = this.styleCount << 1;
int start = _newRanges[0];
int modifyStart = getRangeIndex(start, -1, rangeCount), modifyEnd;
boolean insert = modifyStart == rangeCount;
if (!insert) {
int end = _newRanges[_newRanges.length - 2] + _newRanges[_newRanges.length - 1];
modifyEnd = getRangeIndex(end, modifyStart - 1, rangeCount);
insert = modifyStart == modifyEnd && this.ranges[modifyStart] >= end;
}
if (insert) {
addMerge(_newRanges, _newStyles, _newRanges.length, modifyStart, modifyStart);
return;
}
modifyEnd = modifyStart;
int[] mergeRanges = new int[6];
StyleRange[] mergeStyles = new StyleRange[3];
for (int i = 0; i < _newRanges.length; i += 2) {
int newStart = _newRanges[i];
int newEnd = newStart + _newRanges[i + 1];
if (newStart == newEnd)
continue;
int modifyLast = 0, mergeCount = 0;
while (modifyEnd < rangeCount) {
if (newStart >= this.ranges[modifyStart] + this.ranges[modifyStart + 1])
modifyStart += 2;
if (this.ranges[modifyEnd] + this.ranges[modifyEnd + 1] > newEnd)
break;
modifyEnd += 2;
}
if (this.ranges[modifyStart] < newStart && newStart < this.ranges[modifyStart] + this.ranges[modifyStart + 1]) {
mergeStyles[mergeCount >> 1] = this.styles[modifyStart >> 1];
mergeRanges[mergeCount] = this.ranges[modifyStart];
mergeRanges[mergeCount + 1] = newStart - this.ranges[modifyStart];
mergeCount += 2;
}
mergeStyles[mergeCount >> 1] = _newStyles[i >> 1];
mergeRanges[mergeCount] = newStart;
mergeRanges[mergeCount + 1] = _newRanges[i + 1];
mergeCount += 2;
if (modifyEnd < rangeCount && this.ranges[modifyEnd] < newEnd && newEnd < this.ranges[modifyEnd] + this.ranges[modifyEnd + 1]) {
mergeStyles[mergeCount >> 1] = this.styles[modifyEnd >> 1];
mergeRanges[mergeCount] = newEnd;
mergeRanges[mergeCount + 1] = this.ranges[modifyEnd] + this.ranges[modifyEnd + 1] - newEnd;
mergeCount += 2;
modifyLast = 2;
}
int grow = addMerge(mergeRanges, mergeStyles, mergeCount, modifyStart, modifyEnd + modifyLast);
rangeCount += grow;
modifyStart = modifyEnd += grow;
}
} else {
int start = _newStyles[0].start;
int modifyStart = getRangeIndex(start, -1, this.styleCount), modifyEnd;
boolean insert = modifyStart == this.styleCount;
if (!insert) {
int end = _newStyles[_newStyles.length - 1].start + _newStyles[_newStyles.length - 1].length;
modifyEnd = getRangeIndex(end, modifyStart - 1, this.styleCount);
insert = modifyStart == modifyEnd && this.styles[modifyStart].start >= end;
}
if (insert) {
addMerge(_newStyles, _newStyles.length, modifyStart, modifyStart);
return;
}
modifyEnd = modifyStart;
StyleRange[] mergeStyles = new StyleRange[3];
for (int i = 0; i < _newStyles.length; i++) {
StyleRange newStyle = _newStyles[i], style;
int newStart = newStyle.start;
int newEnd = newStart + newStyle.length;
if (newStart == newEnd)
continue;
int modifyLast = 0, mergeCount = 0;
while (modifyEnd < this.styleCount) {
if (newStart >= this.styles[modifyStart].start + this.styles[modifyStart].length)
modifyStart++;
if (this.styles[modifyEnd].start + this.styles[modifyEnd].length > newEnd)
break;
modifyEnd++;
}
style = this.styles[modifyStart];
if (style.start < newStart && newStart < style.start + style.length) {
style = mergeStyles[mergeCount++] = (StyleRange) style.clone();
style.length = newStart - style.start;
}
mergeStyles[mergeCount++] = newStyle;
if (modifyEnd < this.styleCount) {
style = this.styles[modifyEnd];
if (style.start < newEnd && newEnd < style.start + style.length) {
style = mergeStyles[mergeCount++] = (StyleRange) style.clone();
style.length += style.start - newEnd;
style.start = newEnd;
modifyLast = 1;
}
}
int grow = addMerge(mergeStyles, mergeCount, modifyStart, modifyEnd + modifyLast);
modifyStart = modifyEnd += grow;
}
}
}
int[] getRanges(int start, int length) {
if (length == 0)
return null;
int[] newRanges;
int end = start + length - 1;
if (this.ranges != null) {
int rangeCount = this.styleCount << 1;
int rangeStart = getRangeIndex(start, -1, rangeCount);
if (rangeStart >= rangeCount)
return null;
if (this.ranges[rangeStart] > end)
return null;
int rangeEnd = Math.min(rangeCount - 2, getRangeIndex(end, rangeStart - 1, rangeCount));
if (this.ranges[rangeEnd] > end)
rangeEnd = Math.max(rangeStart, rangeEnd - 2);
newRanges = new int[rangeEnd - rangeStart + 2];
System.arraycopy(this.ranges, rangeStart, newRanges, 0, newRanges.length);
} else {
int rangeStart = getRangeIndex(start, -1, this.styleCount);
if (rangeStart >= this.styleCount)
return null;
if (this.styles[rangeStart].start > end)
return null;
int rangeEnd = Math.min(this.styleCount - 1, getRangeIndex(end, rangeStart - 1, this.styleCount));
if (this.styles[rangeEnd].start > end)
rangeEnd = Math.max(rangeStart, rangeEnd - 1);
newRanges = new int[(rangeEnd - rangeStart + 1) << 1];
for (int i = rangeStart, j = 0; i <= rangeEnd; i++, j += 2) {
StyleRange style = this.styles[i];
newRanges[j] = style.start;
newRanges[j + 1] = style.length;
}
}
if (start > newRanges[0]) {
newRanges[1] = newRanges[0] + newRanges[1] - start;
newRanges[0] = start;
}
if (end < newRanges[newRanges.length - 2] + newRanges[newRanges.length - 1] - 1) {
newRanges[newRanges.length - 1] = end - newRanges[newRanges.length - 2] + 1;
}
return newRanges;
}
int getRangeIndex(int offset, int low, int high) {
int _low = low;
int _high = high;
if (this.styleCount == 0)
return 0;
if (this.ranges != null) {
while (_high - _low > 2) {
int index = ((_high + _low) / 2) / 2 * 2;
int end = this.ranges[index] + this.ranges[index + 1];
if (end > offset) {
_high = index;
} else {
_low = index;
}
}
} else {
while (_high - _low > 1) {
int index = ((_high + _low) / 2);
int end = this.styles[index].start + this.styles[index].length;
if (end > offset) {
_high = index;
} else {
_low = index;
}
}
}
return _high;
}
void textChanging(TextChangingEvent event) {
int start = event.offset;
int newCharCount = event.newCharCount, replaceCharCount = event.replaceCharCount;
@SuppressWarnings("unused")
int newLineCount = event.newLineCount, replaceLineCount = event.replaceLineCount;
updateRanges(start, replaceCharCount, newCharCount);
//
// int startLine = getContent().getLineAtOffset(start);
// if (replaceCharCount == getContent().getCharCount()) lines =
// null;
// if (replaceLineCount == lineCount) {
// lineCount = newLineCount;
// lineWidth = new int[lineCount];
// lineHeight = new int[lineCount];
// reset(0, lineCount);
// } else {
// int delta = newLineCount - replaceLineCount;
// if (lineCount + delta > lineWidth.length) {
// int[] newWidths = new int[lineCount + delta + GROW];
// System.arraycopy(lineWidth, 0, newWidths, 0, lineCount);
// lineWidth = newWidths;
// int[] newHeights = new int[lineCount + delta + GROW];
// System.arraycopy(lineHeight, 0, newHeights, 0, lineCount);
// lineHeight = newHeights;
// }
// if (lines != null) {
// if (lineCount + delta > lines.length) {
// LineInfo[] newLines = new LineInfo[lineCount + delta + GROW];
// System.arraycopy(lines, 0, newLines, 0, lineCount);
// lines = newLines;
// }
// }
// int startIndex = startLine + replaceLineCount + 1;
// int endIndex = startLine + newLineCount + 1;
// System.arraycopy(lineWidth, startIndex, lineWidth, endIndex,
// lineCount - startIndex);
// System.arraycopy(lineHeight, startIndex, lineHeight, endIndex,
// lineCount - startIndex);
// for (int i = startLine; i < endIndex; i++) {
// lineWidth[i] = lineHeight[i] = -1;
// }
// for (int i = lineCount + delta; i < lineCount; i++) {
// lineWidth[i] = lineHeight[i] = -1;
// }
// if (layouts != null) {
// int layoutStartLine = startLine - topIndex;
// int layoutEndLine = layoutStartLine + replaceLineCount + 1;
// for (int i = layoutStartLine; i < layoutEndLine; i++) {
// if (0 <= i && i < layouts.length) {
// if (layouts[i] != null) layouts[i].dispose();
// layouts[i] = null;
// if (bullets != null && bulletsIndices != null) bullets[i] = null;
// }
// }
// if (delta > 0) {
// for (int i = layouts.length - 1; i >= layoutEndLine; i--) {
// if (0 <= i && i < layouts.length) {
// endIndex = i + delta;
// if (0 <= endIndex && endIndex < layouts.length) {
// layouts[endIndex] = layouts[i];
// layouts[i] = null;
// if (bullets != null && bulletsIndices != null) {
// bullets[endIndex] = bullets[i];
// bulletsIndices[endIndex] = bulletsIndices[i];
// bullets[i] = null;
// }
// } else {
// if (layouts[i] != null) layouts[i].dispose();
// layouts[i] = null;
// if (bullets != null && bulletsIndices != null) bullets[i] = null;
// }
// }
// }
// } else if (delta < 0) {
// for (int i = layoutEndLine; i < layouts.length; i++) {
// if (0 <= i && i < layouts.length) {
// endIndex = i + delta;
// if (0 <= endIndex && endIndex < layouts.length) {
// layouts[endIndex] = layouts[i];
// layouts[i] = null;
// if (bullets != null && bulletsIndices != null) {
// bullets[endIndex] = bullets[i];
// bulletsIndices[endIndex] = bulletsIndices[i];
// bullets[i] = null;
// }
// } else {
// if (layouts[i] != null) layouts[i].dispose();
// layouts[i] = null;
// if (bullets != null && bulletsIndices != null) bullets[i] = null;
// }
// }
// }
// }
// }
// if (replaceLineCount != 0 || newLineCount != 0) {
// int startLineOffset = getContent().getOffsetAtLine(startLine);
// if (startLineOffset != start) startLine++;
// updateBullets(startLine, replaceLineCount, newLineCount, true);
// if (lines != null) {
// startIndex = startLine + replaceLineCount;
// endIndex = startLine + newLineCount;
// System.arraycopy(lines, startIndex, lines, endIndex, lineCount -
// startIndex);
// for (int i = startLine; i < endIndex; i++) {
// lines[i] = null;
// }
// for (int i = lineCount + delta; i < lineCount; i++) {
// lines[i] = null;
// }
// }
// }
// lineCount += delta;
// if (maxWidthLineIndex != -1 && startLine <= maxWidthLineIndex &&
// maxWidthLineIndex <= startLine + replaceLineCount) {
// maxWidth = 0;
// maxWidthLineIndex = -1;
// for (int i = 0; i < lineCount; i++) {
// if (lineWidth[i] > maxWidth) {
// maxWidth = lineWidth[i];
// maxWidthLineIndex = i;
// }
// }
// }
// }
}
int addMerge(int[] mergeRanges, StyleRange[] mergeStyles, int mergeCount, int modifyStart, int modifyEnd) {
int _mergeCount = mergeCount;
int _modifyEnd = modifyEnd;
int rangeCount = this.styleCount << 1;
StyleRange endStyle = null;
int endStart = 0, endLength = 0;
if (_modifyEnd < rangeCount) {
endStyle = this.styles[_modifyEnd >> 1];
endStart = this.ranges[_modifyEnd];
endLength = this.ranges[_modifyEnd + 1];
}
int grow = _mergeCount - (_modifyEnd - modifyStart);
if (rangeCount + grow >= this.ranges.length) {
int[] tmpRanges = new int[this.ranges.length + grow + (GROW << 1)];
System.arraycopy(this.ranges, 0, tmpRanges, 0, modifyStart);
StyleRange[] tmpStyles = new StyleRange[this.styles.length + (grow >> 1) + GROW];
System.arraycopy(this.styles, 0, tmpStyles, 0, modifyStart >> 1);
if (rangeCount > _modifyEnd) {
System.arraycopy(this.ranges, _modifyEnd, tmpRanges, modifyStart + _mergeCount, rangeCount - _modifyEnd);
System.arraycopy(this.styles, _modifyEnd >> 1, tmpStyles, (modifyStart + _mergeCount) >> 1, this.styleCount - (_modifyEnd >> 1));
}
this.ranges = tmpRanges;
this.styles = tmpStyles;
} else {
if (rangeCount > _modifyEnd) {
System.arraycopy(this.ranges, _modifyEnd, this.ranges, modifyStart + _mergeCount, rangeCount - _modifyEnd);
System.arraycopy(this.styles, _modifyEnd >> 1, this.styles, (modifyStart + _mergeCount) >> 1, this.styleCount - (_modifyEnd >> 1));
}
}
if (MERGE_STYLES) {
int j = modifyStart;
for (int i = 0; i < _mergeCount; i += 2) {
if (j > 0 && this.ranges[j - 2] + this.ranges[j - 1] == mergeRanges[i] && mergeStyles[i >> 1].similarTo(this.styles[(j - 2) >> 1])) {
this.ranges[j - 1] += mergeRanges[i + 1];
} else {
this.styles[j >> 1] = mergeStyles[i >> 1];
this.ranges[j++] = mergeRanges[i];
this.ranges[j++] = mergeRanges[i + 1];
}
}
if (endStyle != null && this.ranges[j - 2] + this.ranges[j - 1] == endStart && endStyle.similarTo(this.styles[(j - 2) >> 1])) {
this.ranges[j - 1] += endLength;
_modifyEnd += 2;
_mergeCount += 2;
}
if (rangeCount > _modifyEnd) {
System.arraycopy(this.ranges, modifyStart + _mergeCount, this.ranges, j, rangeCount - _modifyEnd);
System.arraycopy(this.styles, (modifyStart + _mergeCount) >> 1, this.styles, j >> 1, this.styleCount - (_modifyEnd >> 1));
}
grow = (j - modifyStart) - (_modifyEnd - modifyStart);
} else {
System.arraycopy(mergeRanges, 0, this.ranges, modifyStart, _mergeCount);
System.arraycopy(mergeStyles, 0, this.styles, modifyStart >> 1, _mergeCount >> 1);
}
this.styleCount += grow >> 1;
return grow;
}
int addMerge(StyleRange[] mergeStyles, int mergeCount, int modifyStart, int modifyEnd) {
int _mergeCount = mergeCount;
int _modifyEnd = modifyEnd;
int grow = _mergeCount - (_modifyEnd - modifyStart);
StyleRange endStyle = null;
if (_modifyEnd < this.styleCount)
endStyle = this.styles[_modifyEnd];
if (this.styleCount + grow >= this.styles.length) {
StyleRange[] tmpStyles = new StyleRange[this.styles.length + grow + GROW];
System.arraycopy(this.styles, 0, tmpStyles, 0, modifyStart);
if (this.styleCount > _modifyEnd) {
System.arraycopy(this.styles, _modifyEnd, tmpStyles, modifyStart + _mergeCount, this.styleCount - _modifyEnd);
}
this.styles = tmpStyles;
} else {
if (this.styleCount > _modifyEnd) {
System.arraycopy(this.styles, _modifyEnd, this.styles, modifyStart + _mergeCount, this.styleCount - _modifyEnd);
}
}
if (MERGE_STYLES) {
int j = modifyStart;
for (int i = 0; i < _mergeCount; i++) {
StyleRange newStyle = mergeStyles[i], style;
if (j > 0 && (style = this.styles[j - 1]).start + style.length == newStyle.start && newStyle.similarTo(style)) {
style.length += newStyle.length;
} else {
this.styles[j++] = newStyle;
}
}
StyleRange style = this.styles[j - 1];
if (endStyle != null && style.start + style.length == endStyle.start && endStyle.similarTo(style)) {
style.length += endStyle.length;
_modifyEnd++;
_mergeCount++;
}
if (this.styleCount > _modifyEnd) {
System.arraycopy(this.styles, modifyStart + _mergeCount, this.styles, j, this.styleCount - _modifyEnd);
}
grow = (j - modifyStart) - (_modifyEnd - modifyStart);
} else {
System.arraycopy(mergeStyles, 0, this.styles, modifyStart, _mergeCount);
}
this.styleCount += grow;
return grow;
}
void updateRanges(int start, int replaceCharCount, int newCharCount) {
if (this.styleCount == 0 || (replaceCharCount == 0 && newCharCount == 0))
return;
if (this.ranges != null) {
int rangeCount = this.styleCount << 1;
int modifyStart = getRangeIndex(start, -1, rangeCount);
if (modifyStart == rangeCount)
return;
int end = start + replaceCharCount;
int modifyEnd = getRangeIndex(end, modifyStart - 1, rangeCount);
int offset = newCharCount - replaceCharCount;
if (modifyStart == modifyEnd && this.ranges[modifyStart] < start && end < this.ranges[modifyEnd] + this.ranges[modifyEnd + 1]) {
if (newCharCount == 0) {
this.ranges[modifyStart + 1] -= replaceCharCount;
modifyEnd += 2;
} else {
if (rangeCount + 2 > this.ranges.length) {
int[] newRanges = new int[this.ranges.length + (GROW << 1)];
System.arraycopy(this.ranges, 0, newRanges, 0, rangeCount);
this.ranges = newRanges;
StyleRange[] newStyles = new StyleRange[this.styles.length + GROW];
System.arraycopy(this.styles, 0, newStyles, 0, this.styleCount);
this.styles = newStyles;
}
System.arraycopy(this.ranges, modifyStart + 2, this.ranges, modifyStart + 4, rangeCount - (modifyStart + 2));
System.arraycopy(this.styles, (modifyStart + 2) >> 1, this.styles, (modifyStart + 4) >> 1, this.styleCount - ((modifyStart + 2) >> 1));
this.ranges[modifyStart + 3] = this.ranges[modifyStart] + this.ranges[modifyStart + 1] - end;
this.ranges[modifyStart + 2] = start + newCharCount;
this.ranges[modifyStart + 1] = start - this.ranges[modifyStart];
this.styles[(modifyStart >> 1) + 1] = this.styles[modifyStart >> 1];
rangeCount += 2;
this.styleCount++;
modifyEnd += 4;
}
if (offset != 0) {
for (int i = modifyEnd; i < rangeCount; i += 2) {
this.ranges[i] += offset;
}
}
} else {
if (this.ranges[modifyStart] < start && start < this.ranges[modifyStart] + this.ranges[modifyStart + 1]) {
this.ranges[modifyStart + 1] = start - this.ranges[modifyStart];
modifyStart += 2;
}
if (modifyEnd < rangeCount && this.ranges[modifyEnd] < end && end < this.ranges[modifyEnd] + this.ranges[modifyEnd + 1]) {
this.ranges[modifyEnd + 1] = this.ranges[modifyEnd] + this.ranges[modifyEnd + 1] - end;
this.ranges[modifyEnd] = end;
}
if (offset != 0) {
for (int i = modifyEnd; i < rangeCount; i += 2) {
this.ranges[i] += offset;
}
}
System.arraycopy(this.ranges, modifyEnd, this.ranges, modifyStart, rangeCount - modifyEnd);
System.arraycopy(this.styles, modifyEnd >> 1, this.styles, modifyStart >> 1, this.styleCount - (modifyEnd >> 1));
this.styleCount -= (modifyEnd - modifyStart) >> 1;
}
} else {
int modifyStart = getRangeIndex(start, -1, this.styleCount);
if (modifyStart == this.styleCount)
return;
int end = start + replaceCharCount;
int modifyEnd = getRangeIndex(end, modifyStart - 1, this.styleCount);
int offset = newCharCount - replaceCharCount;
if (modifyStart == modifyEnd && this.styles[modifyStart].start < start && end < this.styles[modifyEnd].start + this.styles[modifyEnd].length) {
if (newCharCount == 0) {
this.styles[modifyStart].length -= replaceCharCount;
modifyEnd++;
} else {
if (this.styleCount + 1 > this.styles.length) {
StyleRange[] newStyles = new StyleRange[this.styles.length + GROW];
System.arraycopy(this.styles, 0, newStyles, 0, this.styleCount);
this.styles = newStyles;
}
System.arraycopy(this.styles, modifyStart + 1, this.styles, modifyStart + 2, this.styleCount - (modifyStart + 1));
this.styles[modifyStart + 1] = (StyleRange) this.styles[modifyStart].clone();
this.styles[modifyStart + 1].length = this.styles[modifyStart].start + this.styles[modifyStart].length - end;
this.styles[modifyStart + 1].start = start + newCharCount;
this.styles[modifyStart].length = start - this.styles[modifyStart].start;
this.styleCount++;
modifyEnd += 2;
}
if (offset != 0) {
for (int i = modifyEnd; i < this.styleCount; i++) {
this.styles[i].start += offset;
}
}
} else {
if (this.styles[modifyStart].start < start && start < this.styles[modifyStart].start + this.styles[modifyStart].length) {
this.styles[modifyStart].length = start - this.styles[modifyStart].start;
modifyStart++;
}
if (modifyEnd < this.styleCount && this.styles[modifyEnd].start < end && end < this.styles[modifyEnd].start + this.styles[modifyEnd].length) {
this.styles[modifyEnd].length = this.styles[modifyEnd].start + this.styles[modifyEnd].length - end;
this.styles[modifyEnd].start = end;
}
if (offset != 0) {
for (int i = modifyEnd; i < this.styleCount; i++) {
this.styles[i].start += offset;
}
}
System.arraycopy(this.styles, modifyEnd, this.styles, modifyStart, this.styleCount - modifyEnd);
this.styleCount -= modifyEnd - modifyStart;
}
}
}
StyleRange[] getStyleRanges(int start, int length, boolean includeRanges) {
if (length == 0)
return null;
StyleRange[] newStyles;
int end = start + length - 1;
if (this.ranges != null) {
int rangeCount = this.styleCount << 1;
int rangeStart = getRangeIndex(start, -1, rangeCount);
if (rangeStart >= rangeCount)
return null;
if (this.ranges[rangeStart] > end)
return null;
int rangeEnd = Math.min(rangeCount - 2, getRangeIndex(end, rangeStart - 1, rangeCount));
if (this.ranges[rangeEnd] > end)
rangeEnd = Math.max(rangeStart, rangeEnd - 2);
newStyles = new StyleRange[((rangeEnd - rangeStart) >> 1) + 1];
if (includeRanges) {
for (int i = rangeStart, j = 0; i <= rangeEnd; i += 2, j++) {
newStyles[j] = (StyleRange) this.styles[i >> 1].clone();
newStyles[j].start = this.ranges[i];
newStyles[j].length = this.ranges[i + 1];
}
} else {
System.arraycopy(this.styles, rangeStart >> 1, newStyles, 0, newStyles.length);
}
} else {
int rangeStart = getRangeIndex(start, -1, this.styleCount);
if (rangeStart >= this.styleCount)
return null;
if (this.styles[rangeStart].start > end)
return null;
int rangeEnd = Math.min(this.styleCount - 1, getRangeIndex(end, rangeStart - 1, this.styleCount));
if (this.styles[rangeEnd].start > end)
rangeEnd = Math.max(rangeStart, rangeEnd - 1);
newStyles = new StyleRange[rangeEnd - rangeStart + 1];
System.arraycopy(this.styles, rangeStart, newStyles, 0, newStyles.length);
}
if (includeRanges || this.ranges == null) {
StyleRange style = newStyles[0];
if (start > style.start) {
newStyles[0] = style = (StyleRange) style.clone();
style.length = style.start + style.length - start;
style.start = start;
}
style = newStyles[newStyles.length - 1];
if (end < style.start + style.length - 1) {
newStyles[newStyles.length - 1] = style = (StyleRange) style.clone();
style.length = end - style.start + 1;
}
}
return newStyles;
}
}
// public void setTabs(int tabWidth) {
// // keep empty
// }
//
// public void setRedraw(boolean b) {
// // keep empty
// }
/**
* @return the current selection
*/
public @NonNull TextSelection getSelection() {
TextSelection textSelection = this.currentSelection.get();
if (textSelection == null) {
textSelection = new TextSelection(getCaretOffset(), 0);
}
return textSelection;
}
/**
* @return the selection property
*/
public @NonNull ObjectProperty selectionProperty() {
return this.currentSelection;
}
/**
* Set the current selection
*
* @param selection
* the selection
*/
public void setSelection(@NonNull TextSelection selection) {
if (selection.length == 0) {
setCaretOffset(selection.offset);
} else {
// this.caretOffsetProperty.set(selection.offset+selection.length);
this.currentSelection.set(selection);
}
}
/**
* Clear the current selection
*/
public void clearSelection() {
this.currentSelection.set(null);
}
/**
* Set the selection
*
* @param offset
* the offset
* @param length
* the length
*/
public void setSelectionRange(int offset, int length) {
setSelection(new TextSelection(offset, length));
}
@NonNull
private final BooleanProperty editableProperty = new SimpleBooleanProperty(this, "editableProperty", true); //$NON-NLS-1$
/**
* Mark the editor editable
*
*
* Default is true
*
*
* @param editable
* the new value
*/
public void setEditable(boolean editable) {
editableProperty().set(editable);
}
/**
* Check if editable
*
* Default is true
*
*
* @return the current value
*/
public boolean getEditable() {
return editableProperty().get();
}
/**
* The editable property
*
* Default is true
*
*
* @return the property
*/
public @NonNull BooleanProperty editableProperty() {
return this.editableProperty;
}
/**
* Check the location at the given offset
*
* @param offset
* the offset
* @return the point
*/
public @Nullable Point2D getLocationAtOffset(int offset) {
if (offset < 0 || offset > getCharCount()) {
throw new IllegalArgumentException();
}
return ((StyledTextSkin) getSkin()).getCaretLocation(offset);
}
/**
* Get the line height
*
* @param offset
* the offset
* @return the height
*/
public double getLineHeight(int offset) {
if (offset < 0 || offset > getCharCount()) {
throw new IllegalArgumentException();
}
return ((StyledTextSkin) getSkin()).getLineHeight(offset);
}
// public void showSelection() {
// // TODO Auto-generated method stub
//
// }
/**
* Get the line index for the caret
*
* @param caretOffset
* the caret offset
* @return the line index
*/
public int getLineAtOffset(int caretOffset) {
return getContent().getLineAtOffset(caretOffset);
}
/**
* Get the initial offset of the line
*
* @param lineNumber
* the line number
* @return the offset
*/
public int getOffsetAtLine(int lineNumber) {
return getContent().getOffsetAtLine(lineNumber);
}
/**
* Get the text for the given range
*
* @param start
* the start
* @param end
* the end
* @return the text
*/
public @NonNull String getText(int start, int end) {
return getContent().getTextRange(start, end - start + 1);
}
/**
* Paste the clipboard content
*/
public void paste() {
final Clipboard clipboard = Clipboard.getSystemClipboard();
if (clipboard.hasString()) {
final String text = clipboard.getString();
if (text != null) {
// TODO Once we have a real selection we need
getContent().replaceTextRange(getCaretOffset(), 0, text);
setCaretOffset(getCaretOffset() + text.length());
}
}
}
/**
* Copy the current selection into the clipboard
*/
@SuppressWarnings("null")
public void copy() {
if (getSelection().length > 0) {
final Clipboard clipboard = Clipboard.getSystemClipboard();
clipboard.setContent(Collections.singletonMap(DataFormat.PLAIN_TEXT, getContent().getTextRange(getSelection().offset, getSelection().length)));
}
}
/**
* @return property holding the factory to create graphics in the ruler
*/
@NonNull
public final ObjectProperty<@NonNull Callback<@NonNull StyledTextLine, @Nullable Node>> lineRulerGraphicNodeFactoryProperty() {
return this.lineRulerGraphicNodeFactory;
}
/**
* @return the current factory to create graphics in the ruler
*/
public final @NonNull Callback<@NonNull StyledTextLine, @Nullable Node> getLineRulerGraphicNodeFactory() {
return this.lineRulerGraphicNodeFactoryProperty().get();
}
/**
* Set a new factory to create graphics in the ruler
*
* @param lineRulerGraphicNodeFactory
* the factory
*/
public final void setLineRulerGraphicNodeFactory(final @NonNull Callback<@NonNull StyledTextLine, @Nullable Node> lineRulerGraphicNodeFactory) {
this.lineRulerGraphicNodeFactoryProperty().set(lineRulerGraphicNodeFactory);
}
/**
* Refresh the line ruler
*/
public void refreshLineRuler() {
if (getSkin() != null) {
// TODO We need to send an event!
((StyledTextSkin) getSkin()).refreshLineRuler();
}
}
}