/*
* SVG Salamander
* Copyright (c) 2004, Mark McKay
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Mark McKay can be contacted at mark@kitfox.com. Salamander and other
* projects can be found at http://www.kitfox.com
*
* Created on January 26, 2004, 1:56 AM
*/
package com.kitfox.svg;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.font.FontRenderContext;
import java.awt.font.GlyphMetrics;
import java.awt.font.GlyphVector;
import java.awt.geom.AffineTransform;
import java.awt.geom.GeneralPath;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import com.kitfox.svg.xml.StyleAttribute;
/**
* @author Mark McKay
* @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
*/
public class Tspan extends ShapeElement {
public static final String TAG_NAME = "tspan";
float[] x = null;
float[] y = null;
float[] dx = null;
float[] dy = null;
float[] rotate = null;
private String text = "";
// float cursorX;
// float cursorY;
// Shape tspanShape;
/**
* Creates a new instance of Stop
*/
public Tspan() {
}
@Override
public String getTagName() {
return TAG_NAME;
}
// public float getCursorX()
// {
// return cursorX;
// }
//
// public float getCursorY()
// {
// return cursorY;
// }
//
// public void setCursorX(float cursorX)
// {
// this.cursorX = cursorX;
// }
//
// public void setCursorY(float cursorY)
// {
// this.cursorY = cursorY;
// }
/*
* public void loaderStartElement(SVGLoaderHelper helper, Attributes attrs,
* SVGElement parent) { //Load style string super.loaderStartElement(helper,
* attrs, parent);
*
* String x = attrs.getValue("x"); String y = attrs.getValue("y"); String dx
* = attrs.getValue("dx"); String dy = attrs.getValue("dy"); String rotate =
* attrs.getValue("rotate");
*
* if (x != null) this.x = XMLParseUtil.parseFloatList(x); if (y != null)
* this.y = XMLParseUtil.parseFloatList(y); if (dx != null) this.dx =
* XMLParseUtil.parseFloatList(dx); if (dy != null) this.dy =
* XMLParseUtil.parseFloatList(dy); if (rotate != null) { this.rotate =
* XMLParseUtil.parseFloatList(rotate); for (int i = 0; i <
* this.rotate.length; i++) this.rotate[i] =
* (float)Math.toRadians(this.rotate[i]); } }
*/
/**
* Called during load process to add text scanned within a tag
*/
@Override
public void loaderAddText(SVGLoaderHelper helper, String text) {
this.text += text;
}
@Override
protected void build() throws SVGException {
super.build();
StyleAttribute sty = new StyleAttribute();
if (getPres(sty.setName("x"))) {
x = sty.getFloatList();
}
if (getPres(sty.setName("y"))) {
y = sty.getFloatList();
}
if (getPres(sty.setName("dx"))) {
dx = sty.getFloatList();
}
if (getPres(sty.setName("dy"))) {
dy = sty.getFloatList();
}
if (getPres(sty.setName("rotate"))) {
rotate = sty.getFloatList();
for (int i = 0; i < this.rotate.length; i++) {
rotate[i] = (float) Math.toRadians(this.rotate[i]);
}
}
}
public void appendToShape(GeneralPath addShape, Point2D cursor)
throws SVGException {
// if (x != null)
// {
// cursorX = x[0];
// } else if (dx != null)
// {
// cursorX += dx[0];
// }
//
// if (y != null)
// {
// cursorY = y[0];
// } else if (dy != null)
// {
// cursorY += dy[0];
// }
StyleAttribute sty = new StyleAttribute();
String fontFamily = null;
if (getStyle(sty.setName("font-family"))) {
fontFamily = sty.getStringValue();
}
float fontSize = 12f;
if (getStyle(sty.setName("font-size"))) {
fontSize = sty.getFloatValueWithUnits();
}
float letterSpacing = 0;
if (getStyle(sty.setName("letter-spacing"))) {
letterSpacing = sty.getFloatValueWithUnits();
}
// Get font
Font font = diagram.getUniverse().getFont(fontFamily);
if (font == null) {
addShapeSysFont(addShape, null, fontFamily, fontSize, letterSpacing,
cursor);
return;
}
FontFace fontFace = font.getFontFace();
int ascent = fontFace.getAscent();
float fontScale = fontSize / ascent;
AffineTransform xform = new AffineTransform();
strokeWidthScalar = 1f / fontScale;
float cursorX = (float) cursor.getX();
float cursorY = (float) cursor.getY();
// int i = 0;
String drawText = this.text;
drawText = drawText.trim();
for (int i = 0; i < drawText.length(); i++) {
if (x != null && i < x.length) {
cursorX = x[i];
} else if (dx != null && i < dx.length) {
cursorX += dx[i];
}
if (y != null && i < y.length) {
cursorY = y[i];
} else if (dy != null && i < dy.length) {
cursorY += dy[i];
}
// i++;
xform.setToIdentity();
xform.setToTranslation(cursorX, cursorY);
xform.scale(fontScale, fontScale);
if (rotate != null) {
xform.rotate(rotate[i]);
}
String unicode = drawText.substring(i, i + 1);
MissingGlyph glyph = font.getGlyph(unicode);
Shape path = glyph.getPath();
if (path != null) {
path = xform.createTransformedShape(path);
addShape.append(path, false);
}
cursorX += fontScale * glyph.getHorizAdvX() + letterSpacing;
}
// Save final draw point so calling method knows where to begin next
// text draw
cursor.setLocation(cursorX, cursorY);
strokeWidthScalar = 1f;
}
private void addShapeSysFont(GeneralPath addShape, Font font,
String fontFamily, float fontSize, float letterSpacing,
Point2D cursor) {
java.awt.Font sysFont = new java.awt.Font(fontFamily,
java.awt.Font.PLAIN, (int) fontSize);
FontRenderContext frc = new FontRenderContext(null, true, true);
String renderText = this.text.trim();
AffineTransform xform = new AffineTransform();
float cursorX = (float) cursor.getX();
float cursorY = (float) cursor.getY();
// int i = 0;
for (int i = 0; i < renderText.length(); i++) {
if (x != null && i < x.length) {
cursorX = x[i];
} else if (dx != null && i < dx.length) {
cursorX += dx[i];
}
if (y != null && i < y.length) {
cursorY = y[i];
} else if (dy != null && i < dy.length) {
cursorY += dy[i];
}
// i++;
xform.setToIdentity();
xform.setToTranslation(cursorX, cursorY);
if (rotate != null) {
xform.rotate(rotate[Math.min(i, rotate.length - 1)]);
}
// String unicode = renderText.substring(i, i + 1);
GlyphVector textVector = sysFont.createGlyphVector(frc,
renderText.substring(i, i + 1));
Shape glyphOutline = textVector.getGlyphOutline(0);
GlyphMetrics glyphMetrics = textVector.getGlyphMetrics(0);
glyphOutline = xform.createTransformedShape(glyphOutline);
addShape.append(glyphOutline, false);
// cursorX += fontScale * glyph.getHorizAdvX() + letterSpacing;
cursorX += glyphMetrics.getAdvance() + letterSpacing;
}
cursor.setLocation(cursorX, cursorY);
}
@Override
public void render(Graphics2D g) throws SVGException {
float cursorX = 0;
float cursorY = 0;
if (x != null) {
cursorX = x[0];
cursorY = y[0];
} else if (dx != null) {
cursorX += dx[0];
cursorY += dy[0];
}
StyleAttribute sty = new StyleAttribute();
String fontFamily = null;
if (getPres(sty.setName("font-family"))) {
fontFamily = sty.getStringValue();
}
float fontSize = 12f;
if (getPres(sty.setName("font-size"))) {
fontSize = sty.getFloatValueWithUnits();
}
// Get font
Font font = diagram.getUniverse().getFont(fontFamily);
if (font == null) {
System.err.println("Could not load font");
java.awt.Font sysFont = new java.awt.Font(fontFamily,
java.awt.Font.PLAIN, (int) fontSize);
renderSysFont(g, sysFont);
return;
}
FontFace fontFace = font.getFontFace();
int ascent = fontFace.getAscent();
float fontScale = fontSize / ascent;
AffineTransform oldXform = g.getTransform();
AffineTransform xform = new AffineTransform();
strokeWidthScalar = 1f / fontScale;
int posPtr = 1;
for (int i = 0; i < text.length(); i++) {
xform.setToTranslation(cursorX, cursorY);
xform.scale(fontScale, fontScale);
g.transform(xform);
String unicode = text.substring(i, i + 1);
MissingGlyph glyph = font.getGlyph(unicode);
Shape path = glyph.getPath();
if (path != null) {
renderShape(g, path);
} else {
glyph.render(g);
}
if (x != null && posPtr < x.length) {
cursorX = x[posPtr];
cursorY = y[posPtr++];
} else if (dx != null && posPtr < dx.length) {
cursorX += dx[posPtr];
cursorY += dy[posPtr++];
}
cursorX += fontScale * glyph.getHorizAdvX();
g.setTransform(oldXform);
}
strokeWidthScalar = 1f;
}
protected void renderSysFont(Graphics2D g, java.awt.Font font)
throws SVGException {
float cursorX = 0;
float cursorY = 0;
FontRenderContext frc = g.getFontRenderContext();
Shape textShape = font.createGlyphVector(frc, text).getOutline(cursorX,
cursorY);
renderShape(g, textShape);
Rectangle2D rect = font.getStringBounds(text, frc);
cursorX += (float) rect.getWidth();
}
@Override
public Shape getShape() {
return null;
// return shapeToParent(tspanShape);
}
@Override
public Rectangle2D getBoundingBox() {
return null;
// return boundsToParent(tspanShape.getBounds2D());
}
/**
* Updates all attributes in this diagram associated with a time event. Ie,
* all attributes with track information.
*
* @return - true if this node has changed state as a result of the time
* update
*/
@Override
public boolean updateTime(double curTime) throws SVGException {
// Tspan does not change
return false;
}
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
}