org.netbeans.editor.DrawLayerFactory Maven / Gradle / Ivy
/*
* Sun Public License Notice
*
* The contents of this file are subject to the Sun Public License
* Version 1.0 (the "License"). You may not use this file except in
* compliance with the License. A copy of the License is available at
* http://www.sun.com/
*
* The Original Code is NetBeans. The Initial Developer of the Original
* Code is Sun Microsystems, Inc. Portions Copyright 1997-2000 Sun
* Microsystems, Inc. All Rights Reserved.
*/
package org.netbeans.editor;
import java.awt.Color;
import java.util.List;
import javax.swing.text.Style;
import javax.swing.text.StyleConstants;
import javax.swing.text.BadLocationException;
import javax.swing.text.JTextComponent;
/**
* Various draw layers are located here
*
* @author Miloslav Metelka
* @version 1.00
*/
public class DrawLayerFactory {
/** Syntax draw layer name */
public static final String SYNTAX_LAYER_NAME = "syntax-layer"; // NOI18N
/** Syntax draw layer visibility */
public static final int SYNTAX_LAYER_VISIBILITY = 1000;
/** Bookmark draw layer name */
public static final String BOOKMARK_LAYER_NAME = "bookmark-layer"; // NOI18N
/** Bookmark draw layer visibility */
public static final int BOOKMARK_LAYER_VISIBILITY = 2000;
/** Annotation draw layer name */
public static final String ANNOTATION_LAYER_NAME = "annotation-layer"; // NOI18N
/** Annotation draw layer visibility */
public static final int ANNOTATION_LAYER_VISIBILITY = 2100;
/** Highlight search layer name */
public static final String HIGHLIGHT_SEARCH_LAYER_NAME = "highlight-search-layer"; // NOI18N
/** Highlight search layer visibility */
public static final int HIGHLIGHT_SEARCH_LAYER_VISIBILITY = 9000;
/** Incremental search layer name */
public static final String INC_SEARCH_LAYER_NAME = "inc-search-layer"; // NOI18N
/** Incremental search layer visibility */
public static final int INC_SEARCH_LAYER_VISIBILITY = 9500;
/** Selection draw layer name */
public static final String CARET_LAYER_NAME = "caret-layer"; // NOI18N
/** Selection draw layer visibility */
public static final int CARET_LAYER_VISIBILITY = 10000;
/** Guarded layer name */
public static final String GUARDED_LAYER_NAME = "guarded-layer"; // NOI18N
/** Guarded layer visibility */
public static final int GUARDED_LAYER_VISIBILITY = 1400;
/** Layer that colors the text according to the tokens that were parsed.
* It's active all the time.
*/
public static class SyntaxLayer extends DrawLayer.AbstractLayer {
public SyntaxLayer() {
super(SYNTAX_LAYER_NAME);
}
public void init(DrawContext ctx) {
}
public boolean isActive(DrawContext ctx, MarkFactory.DrawMark mark) {
return true;
}
public void updateContext(DrawContext ctx) {
// Get the token type and docColorings
TokenID tokenID = ctx.getTokenID();
TokenContextPath tcp = ctx.getTokenContextPath();
if (tokenID != null && tcp != null) {
// Get the coloring according the name of the token
String fullName = tcp.getFullTokenName(tokenID);
Coloring c = ctx.getEditorUI().getColoring(fullName);
if (c != null) {
c.apply(ctx);
} else { // Token coloring null, try category
TokenCategory cat = tokenID.getCategory();
if (cat != null) {
fullName = tcp.getFullTokenName(cat);
c = ctx.getEditorUI().getColoring(fullName);
if (c != null) {
c.apply(ctx);
}
}
}
}
}
}
/** This layer colors the line by a color specified in constructor
* It requires only activation mark since it deactivates automatically
* at the end of line.
*/
public static abstract class ColorLineLayer extends DrawLayer.AbstractLayer {
/** Coloring to use for highlighting */
Coloring coloring;
public ColorLineLayer(String name) {
super(name);
}
public boolean extendsEOL() {
return true;
}
public void init(DrawContext ctx) {
coloring = null;
}
public boolean isActive(DrawContext ctx, MarkFactory.DrawMark mark) {
boolean active;
if (mark != null) {
active = (ctx.getEditorUI().getComponent() != null)
&& mark.activateLayer;
if (active) {
try {
BaseDocument doc = ctx.getEditorUI().getDocument();
int nextRowStartPos = Utilities.getRowStart(
doc, ctx.getFragmentOffset(), 1);
if (nextRowStartPos < 0) { // end of doc
nextRowStartPos = Integer.MAX_VALUE;
}
setNextActivityChangeOffset(nextRowStartPos);
} catch (BadLocationException e) {
active = false;
}
}
} else {
active = false;
}
return active;
}
public void updateContext(DrawContext ctx) {
if (coloring == null) {
coloring = getColoring(ctx);
}
if (coloring != null) {
coloring.apply(ctx);
}
}
protected abstract Coloring getColoring(DrawContext ctx);
}
/** Layer that covers selection services provided by caret.
* This layer assumes that both caretMark and selectionMark in
* BaseCaret are properly served so that their active flags
* are properly set.
*/
public static class CaretLayer extends DrawLayer.AbstractLayer {
Coloring coloring;
public CaretLayer() {
super(CARET_LAYER_NAME);
}
public boolean extendsEmptyLine() {
return true;
}
public void init(DrawContext ctx) {
coloring = null;
}
public boolean isActive(DrawContext ctx, MarkFactory.DrawMark mark) {
boolean active;
if (mark != null) {
active = mark.activateLayer;
} else {
JTextComponent c = ctx.getEditorUI().getComponent();
active = (c != null) && c.getCaret().isSelectionVisible()
&& ctx.getFragmentOffset() >= c.getSelectionStart()
&& ctx.getFragmentOffset() < c.getSelectionEnd();
}
return active;
}
public void updateContext(DrawContext ctx) {
if (coloring == null) {
coloring = ctx.getEditorUI().getColoring(SettingsNames.SELECTION_COLORING);
}
if (coloring != null) {
coloring.apply(ctx);
}
}
}
/** Highlight search layer highlights all occurences
* of the searched string in text.
*/
public static class HighlightSearchLayer extends DrawLayer.AbstractLayer {
/** Pairs of start and end position of the found string */
int blocks[] = new int[] { -1, -1 };
/** Coloring to use for highlighting */
Coloring coloring;
/** Current index for painting */
int curInd;
/** Enabled flag */
boolean enabled;
public HighlightSearchLayer() {
super(HIGHLIGHT_SEARCH_LAYER_NAME);
}
public boolean isEnabled() {
return enabled;
}
public void setEnabled(boolean enabled) {
this.enabled = enabled;
}
public void init(DrawContext ctx) {
if (enabled) {
try {
BaseDocument doc = ctx.getEditorUI().getDocument();
blocks = FindSupport.getFindSupport().getBlocks(blocks,
doc, ctx.getStartOffset(), ctx.getEndOffset());
} catch (BadLocationException e) {
blocks = new int[] { -1, -1 };
}
coloring = null; // reset so it will be re-read
curInd = 0;
}
}
public boolean isActive(DrawContext ctx, MarkFactory.DrawMark mark) {
boolean active;
if (enabled) {
int pos = ctx.getFragmentOffset();
if (pos == blocks[curInd]) {
active = true;
setNextActivityChangeOffset(blocks[curInd + 1]);
} else if (pos == blocks[curInd + 1]) {
active = false;
curInd += 2;
setNextActivityChangeOffset(blocks[curInd]);
if (pos == blocks[curInd]) { // just follows
setNextActivityChangeOffset(blocks[curInd + 1]);
active = true;
}
} else {
setNextActivityChangeOffset(blocks[curInd]);
active = false;
}
} else {
active = false;
}
return active;
}
public void updateContext(DrawContext ctx) {
int pos = ctx.getFragmentOffset();
if (pos >= blocks[curInd] && pos < blocks[curInd + 1]) {
if (coloring == null) {
coloring = ctx.getEditorUI().getColoring(SettingsNames.HIGHLIGHT_SEARCH_COLORING);
}
if (coloring != null) {
coloring.apply(ctx);
}
}
}
}
/** Layer covering incremental search. There are just two positions
* begining and end of the searched string
*/
public static class IncSearchLayer extends DrawLayer.AbstractLayer {
/** Coloring to use for highlighting */
Coloring coloring;
/** Position where the searched string begins */
int pos;
/** Length of area to highlight */
int len;
/** Whether this layer is enabled */
boolean enabled;
public IncSearchLayer() {
super(INC_SEARCH_LAYER_NAME);
}
public boolean isEnabled() {
return enabled;
}
public void setEnabled(boolean enabled) {
this.enabled = enabled;
}
void setArea(int pos, int len) {
this.pos = pos;
this.len = len;
}
int getOffset() {
return pos;
}
int getLength() {
return len;
}
public void init(DrawContext ctx) {
setNextActivityChangeOffset(enabled ? pos : Integer.MAX_VALUE);
}
public boolean isActive(DrawContext ctx, MarkFactory.DrawMark mark) {
boolean active = false;
if (enabled) {
if (ctx.getFragmentOffset() == pos) {
active = true;
setNextActivityChangeOffset(pos + len);
}
}
return active;
}
public void updateContext(DrawContext ctx) {
if (coloring == null) {
coloring = ctx.getEditorUI().getColoring(SettingsNames.INC_SEARCH_COLORING);
}
if (coloring != null) {
coloring.apply(ctx);
}
}
}
/** Bookmark layer */
public static class BookmarkLayer extends ColorLineLayer {
public BookmarkLayer() {
super(BOOKMARK_LAYER_NAME);
}
protected Coloring getColoring(DrawContext ctx) {
return ctx.getEditorUI().getColoring(SettingsNames.BOOKMARK_COLORING);
}
}
/** Layer for guarded blocks */
static class GuardedLayer extends ColorLineLayer {
GuardedDocument doc;
GuardedLayer() {
super(GUARDED_LAYER_NAME);
}
public void init(DrawContext ctx) {
super.init(ctx);
doc = (GuardedDocument)ctx.getEditorUI().getDocument();
}
public boolean isActive(DrawContext ctx, MarkFactory.DrawMark mark) {
boolean active;
if (mark != null) {
active = mark.activateLayer;
} else {
active = doc.isPosGuarded(ctx.getFragmentOffset());
}
return active;
}
protected Coloring getColoring(DrawContext ctx) {
return ctx.getEditorUI().getColoring(SettingsNames.GUARDED_COLORING);
}
}
/** Style layer getting color settings from particular style */
public static class StyleLayer extends DrawLayer.AbstractLayer {
protected Style style;
protected MarkChain markChain;
protected Color backColor;
protected Color foreColor;
public StyleLayer(String layerName, BaseDocument doc, Style style) {
super(layerName);
this.style = style;
markChain = new MarkChain(doc, layerName);
}
public boolean extendsEOL() {
return true;
}
public final MarkChain getMarkChain() {
return markChain;
}
public void init(DrawContext ctx) {
foreColor = StyleConstants.getForeground(style);
backColor = StyleConstants.getBackground(style);
}
public boolean isActive(DrawContext ctx, MarkFactory.DrawMark mark) {
boolean active = false;
if (mark != null) {
active = (ctx.getEditorUI().getComponent() != null)
&& mark.activateLayer;
if (active) {
try {
BaseDocument doc = ctx.getEditorUI().getDocument();
int nextRowStartPos = Utilities.getRowStart(
doc, ctx.getFragmentOffset(), 1);
if (nextRowStartPos < 0) { // end of doc
nextRowStartPos = Integer.MAX_VALUE;
}
setNextActivityChangeOffset(nextRowStartPos);
} catch (BadLocationException e) {
active = false;
}
}
}
return active;
}
public void updateContext(DrawContext ctx) {
if (foreColor != null) {
ctx.setForeColor(foreColor);
}
if (backColor != null) {
ctx.setBackColor(backColor);
}
}
public String toString() {
return super.toString() + ((markChain != null) ? (", " + markChain) : ""); // NOI18N
}
}
/** Test layer for coloring the specific words */
public static class WordColoringLayer extends DrawLayer.AbstractLayer {
protected StringMap stringMap = new StringMap();
public WordColoringLayer(String name) {
super(name);
}
public void put(String s, Coloring c) {
stringMap.put(s, c);
}
public void put(String[] strings, Coloring c) {
for (int i = 0; i < strings.length; i++) {
put(strings[i], c);
}
}
public void put(List stringList, Coloring c) {
String strings[] = new String[stringList.size()];
stringList.toArray(strings);
put(strings, c);
}
public void init(DrawContext ctx) {
}
public boolean isActive(DrawContext ctx, MarkFactory.DrawMark mark) {
return true;
}
public void updateContext(DrawContext ctx) {
Coloring c = (Coloring)stringMap.get(ctx.getBuffer(),
ctx.getTokenOffset(), ctx.getTokenLength());
if (c != null) {
c.apply(ctx);
}
}
}
/** Annotation layer for drawing of annotations. Each mark which is stored in markChain has
* corresponding Annotation. More than one Annotation can share one mark. In this case
* the only one annotation is active and this must be drawn. */
public static class AnnotationLayer extends DrawLayer.AbstractLayer {
/** Current coloring */
private Coloring coloring;
/** Chain of marks attached to this layer */
private MarkChain markChain;
public AnnotationLayer(BaseDocument doc) {
super(ANNOTATION_LAYER_NAME);
coloring = null;
markChain = new MarkChain(doc, ANNOTATION_LAYER_NAME);
}
/** Get chain of marks attached to this draw layer
* @return mark chain */
public final MarkChain getMarkChain() {
return markChain;
}
public boolean extendsEOL() {
return true;
}
public boolean isActive(DrawContext ctx, MarkFactory.DrawMark mark) {
int nextActivityOffset;
coloring = null;
if (mark == null)
return false;
if (ctx.getEditorUI().getComponent() == null || !mark.activateLayer)
return false;
BaseDocument doc = ctx.getEditorUI().getDocument();
// Gets the active annotation attached to this mark. It is possible that
// no active annotation might exist for the mark, e.g. there can be
// mark at the beginning of the line for a whole line annotation
// and there can be mark in the middle of the line for a line-part annotation
AnnotationDesc anno = doc.getAnnotations().getActiveAnnotation(mark);
if (anno == null) {
// if no active annotation was found for the given mark, check
// whether we are not already drawing some other annotation. If that's
// true we have to continue drawing it (means return true here)
AnnotationDesc activeAnno = doc.getAnnotations().getLineActiveAnnotation(mark);
if (activeAnno == null)
return false;
if (ctx.getFragmentOffset() >= activeAnno.getOffset())
if (ctx.getFragmentOffset() < activeAnno.getOffset()+activeAnno.getLength() || activeAnno.isWholeLine()) {
coloring = activeAnno.getColoring();
return true;
}
return false;
}
int nextLineStart = -1;
try {
nextLineStart = Utilities.getRowStart(doc, ctx.getFragmentOffset(), 1);
} catch (BadLocationException e) {
return false;
}
if (nextLineStart < 0) { // end of doc
nextLineStart = Integer.MAX_VALUE;
}
if (anno.isWholeLine()) {
nextActivityOffset = nextLineStart;
}
else {
nextActivityOffset = ctx.getFragmentOffset() + anno.getLength();
if (nextActivityOffset > nextLineStart)
nextActivityOffset = nextLineStart;
}
setNextActivityChangeOffset(nextActivityOffset);
coloring = anno.getColoring();
// The following code ensures that if active annotation does not
// have highlight the color of next one will be used.
// It was decided that it will not be used
//
// if (coloring.getBackColor() == null) {
// AnnotationDesc[] annos = doc.getAnnotations().getPasiveAnnotations(anno.getLine());
// if (annos != null) {
// for (int i=0; i© 2015 - 2025 Weber Informatics LLC | Privacy Policy