Svg.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2011 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.turro.zkoss.svg;
 
import java.io.Writer;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.text.StringEscapeUtils;
import org.turro.string.Strings;
import org.turro.html.HTMLGenerator;
import org.turro.util.IdGenerator;
import org.zkoss.zk.ui.Executions;
import org.zkoss.zul.Div;
 
public class Svg extends Div {
 
  private HTMLGenerator htmlGenerator = new HTMLGenerator();
  private String forceStyle = null, forceTransform= null, clickElement = null;
  private String id;
 
  public void startComposing(String onUserEvent, String width, String height, double scale) {
    id = IdGenerator.generate();
    startTag("div",
            new String[] {
              "id='" + id + "'",
              "xmlns:n='http://www.zkoss.org/2005/zk/native'",
              onUserEvent != null ? "onUser='" + onUserEvent + "'" : ""
            });
    startTag("n:svg", 
            new String[] {
              "width='" + width + "'",
              "height='" + height + "'",
              "version='1.1'",
              "xmlns='http://www.w3.org/2000/svg'",
              "xmlns:z='zk' style='overflow:auto'"
            });
    startTag("n:g", new String[] {
      "transform='scale(" + scale + ")'"
    });
  }
  
  public void example() {
    doTag("n:circle",
            new String[] {
              "style='fill:${each};cursor:pointer'",
              "z:forEach='${bgnds}'",
              "cx='${50+rads[forEachStatus.index]}'",
              "cy='${20+rads[forEachStatus.index]}'",
              "r='${rads[forEachStatus.index]}'",
              "onclick=\"zAu.send(new zk.Event(zk.Widget.$('$" + id + "'), 'onUser', '${each}'));\""
            });
  }
  
  public void generateContent(Map args) {
    htmlGenerator.endAllTags();
    Executions.createComponentsDirectly(htmlGenerator.toString(), "zul", this, args);
  }
 
  public void clear() {
    htmlGenerator = new HTMLGenerator();
  }
  
  public void circle(int x, int y, int r) {
    circle(x, y, r, 1.0);
  }
  
  public void circle(int x, int y, int r, double opacity) {
    circle(x, y, r, null, null, null, opacity);
  }
  
  public void circle(int x, int y, int r, String stroke, String strokeWidth, String fill, double opacity) {
    doTag("n:circle", new String[] {
      "cx='" + x + "'",
      "cy='" + y + "'",
      "r='" + r + "'",
      (stroke == null ? null : "stroke='" + stroke + "'"),
      (strokeWidth == null ? null : "stroke-width='" + strokeWidth + "'"),
      (fill == null ? null : "fill='" + fill + "'"),
      "opacity='" + opacity + "'",
      forceStyle != null ? "style='" + forceStyle + "'" : null,
      forceTransform != null ? "transform='" + forceTransform + "'" : null,
      clickElement != null ? "onclick=\"" + clickElement + "\"" : null
    });
    forceStyle = null;
    forceTransform = null;
    clickElement = null;
  }
  
  public void line(int x1, int y1, int x2, int y2, String stroke, String strokeWidth) {
    line(x1, y1, x2, y2, stroke, strokeWidth, 1);
  }
  
  public void line(int x1, int y1, int x2, int y2, String stroke, String strokeWidth, double opacity) {
    doTag("n:line", new String[] {
      "x1='" + x1 + "'",
      "y1='" + y1 + "'",
      "x2='" + x2 + "'",
      "y2='" + y2 + "'",
      (stroke == null ? null : "stroke='" + stroke + "'"),
      (strokeWidth == null ? null : "stroke-width='" + strokeWidth + "'"),
      "opacity='" + opacity + "'",
      forceStyle != null ? "style='" + forceStyle + "'" : "",
      forceTransform != null ? "transform='" + forceTransform + "'" : "",
      clickElement != null ? "onclick=\"" + clickElement + "\"" : ""
    });
    forceStyle = null;
    forceTransform = null;
    clickElement = null;
  }
  
  public void rectangle(int x, int y, int width, int height, String fill) {
    rectangle(x, y, width, height, fill, 1);
  }
  
  public void rectangle(int x, int y, int width, int height, String fill, double opacity) {
    rectangle(x, y, width, height, fill, opacity, null);
  }
  
  public void rectangle(int x, int y, int width, int height, String fill, double opacity, String tooltip) {
    startTag("n:rect", new String[] {
      "x='" + x + "'",
      "y='" + y + "'",
      "width='" + width + "'",
      "height='" + height + "'",
      "fill='" + fill + "'",
      "opacity='" + opacity + "'",
      forceStyle != null ? "style='" + forceStyle + "'" : "",
      forceTransform != null ? "transform='" + forceTransform + "'" : "",
      clickElement != null ? "onclick=\"" + clickElement + "\"" : ""
    });
    if(!Strings.isBlank(tooltip)) {
      startTag("n:title").write(StringEscapeUtils.escapeXml11(tooltip)).endTag();
    }
    endTag();
    forceStyle = null;
    forceTransform = null;
    clickElement = null;
  }
  
  public void roundRectangle(int x, int y, int width, int height, String fill) {
    roundRectangle(x, y, width, height, fill, 1);
  }
  
  public void roundRectangle(int x, int y, int width, int height, String fill, double opacity) {
    roundRectangle(x, y, 5, 5, width, height, fill, opacity);
  }
  
  public void roundRectangle(int x, int y, int width, int height, String fill, double opacity, String tooltip) {
    roundRectangle(x, y, 5, 5, width, height, fill, opacity, tooltip);
  }
  
  public void roundRectangle(int x, int y, int rx, int ry, int width, int height, String fill, double opacity) {
    roundRectangle(x, y, rx, ry, width, height, fill, opacity, null);
  }
  
  public void roundRectangle(int x, int y, int rx, int ry, int width, int height, String fill, double opacity, String tooltip) {
    startTag("n:rect", new String[] {
      "x='" + x + "'",
      "y='" + y + "'",
      "rx='" + rx + "'",
      "ry='" + ry + "'",
      "width='" + width + "'",
      "height='" + height + "'",
      "fill='" + fill + "'",
      "opacity='" + opacity + "'",
      forceStyle != null ? "style='" + forceStyle + "'" : "",
      forceTransform != null ? "transform='" + forceTransform + "'" : "",
      clickElement != null ? "onclick=\"" + clickElement + "\"" : ""
    });
    if(!Strings.isBlank(tooltip)) {
      startTag("n:title").write(StringEscapeUtils.escapeXml11(tooltip)).endTag();
    }
    endTag();
    forceStyle = null;
    forceTransform = null;
    clickElement = null;
  }
  
  public void text(String text, int x, int y) {
    text(text, x, y, null);
  }
  
  public void text(String text, int x, int y, String tooltip) {
    startTag("n:text", new String[] {
      "x='" + x + "'",
      "y='" + y + "'",
      forceStyle != null ? "style='" + forceStyle + "'" : "",
      forceTransform != null ? "transform='" + forceTransform + "'" : "",
      clickElement != null ? "onclick=\"" + clickElement + "\"" : ""
    });
    if(!Strings.isBlank(tooltip)) {
      startTag("n:title").write(StringEscapeUtils.escapeXml11(tooltip)).endTag();
    }
    write(StringEscapeUtils.escapeXml11(text)).endTag();
    forceStyle = null;
    forceTransform = null;
    clickElement = null;
  }
  
  public void span(int x, int y, int width, int height, String fill, double opacity) {
    rectangle(x, y, width, height / 2, fill, opacity);
    rectangle(x, y, height / 2, height, fill, opacity);
    rectangle(x + width - (height / 2), y, height / 2, height, fill, opacity);
  }
  
  public void roundSpan(int x, int y, int width, int height, String fill, double opacity) {
    roundRectangle(x, y, width, height / 2, fill, opacity);
    roundRectangle(x, y, height / 2, height, fill, opacity);
    roundRectangle(x + width - (height / 2), y, height / 2, height, fill, opacity);
  }
  
  public void shadowedSpan(int x, int y, int width, int height, String fill, double opacity) {
    clearValues();
    rectangle(x + 2, y + 2, width, height / 2, "gray", 0.2);
    restoreValues();
    rectangle(x, y, width, height / 2, fill, opacity);
    clearValues();
    rectangle(x + 2, y + 2, height / 2, height, "gray", 0.2);
    restoreValues();
    rectangle(x, y, height / 2, height, fill, opacity);
    clearValues();
    rectangle(x + width - (height / 2) + 2, y + 2, height / 2, height, "gray", 0.2);
    restoreValues();
    rectangle(x + width - (height / 2), y, height / 2, height, fill, opacity);
  }
  
  public void shadowedRoundSpan(int x, int y, int width, int height, String fill, double opacity) {
    clearValues();
    roundRectangle(x + 2, y + 2, width, height / 2, "gray", 0.2);
    restoreValues();
    roundRectangle(x, y, width, height / 2, fill, opacity);
    clearValues();
    roundRectangle(x + 2, y + 2, height / 2, height, "gray", 0.2);
    restoreValues();
    roundRectangle(x, y, height / 2, height, fill, opacity);
    clearValues();
    roundRectangle(x + width - (height / 2) + 2, y + 2, height / 2, height, "gray", 0.2);
    restoreValues();
    roundRectangle(x + width - (height / 2), y, height / 2, height, fill, opacity);
  }
  
  public void shadowedLine(int x1, int y1, int x2, int y2, String stroke, String strokeWidth, double opacity) {
    clearValues();
    line(x1 + 2, y1 + 2, x2 + 2, y2 + 2, stroke, strokeWidth, 0.2);
    restoreValues();
    line(x1, y1, x2, y2, stroke, strokeWidth, opacity);
  }
  
  public void shadowedRectangle(int x, int y, int width, int height, String fill, double opacity) {
    clearValues();
    rectangle(x + 2, y + 2, width, height, "gray", 0.2);
    restoreValues();
    rectangle(x, y, width, height, fill, opacity);
  }
 
  public void shadowedRoundRectangle(int x, int y, int width, int height, String fill, double opacity, String tooltip) {
    clearValues();
    roundRectangle(x + 2, y + 2, width, height, "gray", 0.2);
    restoreValues();
    roundRectangle(x, y, width, height, fill, opacity, tooltip);
  }
  
  public void setForceStyle(String forceStyle) {
    this.forceStyle = forceStyle;
  }
 
  public void setForceTransform(String forceTransform) {
    this.forceTransform = forceTransform;
  }
  
  public void setClickElementData(String clickElementData) {
    this.clickElement = "zAu.send(new zk.Event(zk.Widget.$('$" + id + "'), 'onUser', '" + clickElementData + "'));";
  }
 
  public HTMLGenerator writeSeparator() {
    return htmlGenerator.writeSeparator();
  }
 
  public HTMLGenerator writeNewLine() {
    return htmlGenerator.writeNewLine();
  }
 
  public HTMLGenerator writeHorizontalStrut(int pixels) {
    return htmlGenerator.writeHorizontalStrut(pixels);
  }
 
  public HTMLGenerator write(String value) {
    return htmlGenerator.write(value);
  }
 
  public HTMLGenerator startTag(String tag, String[] attributes) {
    return htmlGenerator.startTag(tag, attributes);
  }
 
  public HTMLGenerator startTag(String tag, String attributes) {
    return htmlGenerator.startTag(tag, attributes);
  }
 
  public HTMLGenerator startTag(String tag) {
    return htmlGenerator.startTag(tag);
  }
 
  public HTMLGenerator startTableRow(String[] attributes) {
    return htmlGenerator.startTableRow(attributes);
  }
 
  public HTMLGenerator startTableRow(String attributes) {
    return htmlGenerator.startTableRow(attributes);
  }
 
  public HTMLGenerator startTableCol(String[] attributes) {
    return htmlGenerator.startTableCol(attributes);
  }
 
  public HTMLGenerator startTableCol(String attributes) {
    return htmlGenerator.startTableCol(attributes);
  }
 
  public HTMLGenerator startTable(String[] attributes) {
    return htmlGenerator.startTable(attributes);
  }
 
  public HTMLGenerator startTable(String attributes) {
    return htmlGenerator.startTable(attributes);
  }
 
  public HTMLGenerator startJavaScript() {
    return htmlGenerator.startJavaScript();
  }
 
  public HTMLGenerator startExtAnchor(String url, String hint) {
    return htmlGenerator.startExtAnchor(url, hint);
  }
 
  public HTMLGenerator startCSS() {
    return htmlGenerator.startCSS();
  }
 
  public HTMLGenerator startAnchor(String url, String hint, String cssClass, String onClick) {
    return htmlGenerator.startAnchor(url, hint, cssClass, onClick);
  }
 
  public HTMLGenerator startAnchor(String url, String hint, String cssClass) {
    return htmlGenerator.startAnchor(url, hint, cssClass);
  }
 
  public HTMLGenerator startAnchor(String url, String hint) {
    return htmlGenerator.startAnchor(url, hint);
  }
 
  public void setOut(Writer out) {
    htmlGenerator.setOut(out);
  }
 
  public HTMLGenerator endTag(String tag) {
    return htmlGenerator.endTag(tag);
  }
 
  public HTMLGenerator endTag() {
    return htmlGenerator.endTag();
  }
 
  public HTMLGenerator endTableRow() {
    return htmlGenerator.endTableRow();
  }
 
  public HTMLGenerator endTableCol() {
    return htmlGenerator.endTableCol();
  }
 
  public HTMLGenerator endTable() {
    return htmlGenerator.endTable();
  }
 
  public HTMLGenerator endJavaScript() {
    return htmlGenerator.endJavaScript();
  }
 
  public HTMLGenerator endCSS() {
    return htmlGenerator.endCSS();
  }
 
  public HTMLGenerator endBeforeTag(String tag) {
    return htmlGenerator.endBeforeTag(tag);
  }
 
  public HTMLGenerator endAllTags() {
    return htmlGenerator.endAllTags();
  }
 
  public HTMLGenerator doTag(String tag, String[] attributes) {
    return htmlGenerator.doTag(tag, attributes);
  }
 
  public HTMLGenerator doTag(String tag, String attributes) {
    return htmlGenerator.doTag(tag, attributes);
  }
 
  public HTMLGenerator doTag(String tag) {
    return htmlGenerator.doTag(tag);
  }
 
  public boolean checkTag(String tag) {
    return htmlGenerator.checkTag(tag);
  }
 
  public HTMLGenerator addJavaScriptLink(String jsFile) {
    return htmlGenerator.addJavaScriptLink(jsFile);
  }
 
  public HTMLGenerator addCSSLink(String cssFile) {
    return htmlGenerator.addCSSLink(cssFile);
  }
  
  private final HashMap<String, String> saved = new HashMap<>();
  
  private void clearValues() {
    saved.put("forceStyle", forceStyle);
    saved.put("forceTransform", forceTransform);
    saved.put("clickElement", clickElement);
    forceStyle = null;
    clickElement = null;
  }
  
  private void restoreValues() {
    forceStyle = saved.get("forceStyle");
    forceTransform = saved.get("forceTransform");
    clickElement = saved.get("clickElement");
    saved.clear();
  }
 
}