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Diffstat (limited to 'src/de/lmu/ifi/dbs/elki/visualization/svg/SVGButton.java')
| -rw-r--r-- | src/de/lmu/ifi/dbs/elki/visualization/svg/SVGButton.java | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/src/de/lmu/ifi/dbs/elki/visualization/svg/SVGButton.java b/src/de/lmu/ifi/dbs/elki/visualization/svg/SVGButton.java new file mode 100644 index 00000000..9d71c3d6 --- /dev/null +++ b/src/de/lmu/ifi/dbs/elki/visualization/svg/SVGButton.java @@ -0,0 +1,165 @@ +package de.lmu.ifi.dbs.elki.visualization.svg; + +/* + This file is part of ELKI: + Environment for Developing KDD-Applications Supported by Index-Structures + + Copyright (C) 2012 + Ludwig-Maximilians-Universität München + Lehr- und Forschungseinheit für Datenbanksysteme + ELKI Development Team + + 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/>. + */ +import org.apache.batik.util.SVGConstants; +import org.w3c.dom.Element; + +import de.lmu.ifi.dbs.elki.visualization.css.CSSClass; + +/** + * Class to draw a button as SVG. + * + * @author Erich Schubert + */ +public class SVGButton { + /** + * Default button color + */ + public static final String DEFAULT_BUTTON_COLOR = SVGConstants.CSS_LIGHTGRAY_VALUE; + + /** + * Default text color + */ + public static final String DEFAULT_TEXT_COLOR = SVGConstants.CSS_BLACK_VALUE; + + /** + * X position + */ + private double x; + + /** + * Y position + */ + private double y; + + /** + * Width + */ + private double w; + + /** + * Height + */ + private double h; + + /** + * Corner rounding factor. NaN = no rounding + */ + private double r = Double.NaN; + + /** + * Class for the buttons main CSS + */ + private CSSClass butcss; + + /** + * Button title, optional + */ + private String title = null; + + /** + * Title styling + */ + private CSSClass titlecss = null; + + /** + * Constructor. + * + * @param x Position X + * @param y Position Y + * @param w Width + * @param h Height + * @param r Rounded radius + */ + public SVGButton(double x, double y, double w, double h, double r) { + super(); + this.x = x; + this.y = y; + this.w = w; + this.h = h; + this.r = r; + this.butcss = new CSSClass(this, "button"); + butcss.setStatement(SVGConstants.CSS_FILL_PROPERTY, DEFAULT_BUTTON_COLOR); + butcss.setStatement(SVGConstants.CSS_STROKE_PROPERTY, SVGConstants.CSS_BLACK_VALUE); + butcss.setStatement(SVGConstants.CSS_STROKE_WIDTH_PROPERTY, ".01"); + } + + /** + * Produce the actual SVG elements for the button. + * + * @param svgp Plot to draw to + * @return Button wrapper element + */ + public Element render(SVGPlot svgp) { + Element tag = svgp.svgElement(SVGConstants.SVG_G_TAG); + Element button = svgp.svgRect(x, y, w, h); + if(!Double.isNaN(r)) { + SVGUtil.setAtt(button, SVGConstants.SVG_RX_ATTRIBUTE, r); + SVGUtil.setAtt(button, SVGConstants.SVG_RY_ATTRIBUTE, r); + } + SVGUtil.setAtt(button, SVGConstants.SVG_STYLE_ATTRIBUTE, butcss.inlineCSS()); + tag.appendChild(button); + // Add light effect: + if (svgp.getIdElement(SVGEffects.LIGHT_GRADIENT_ID) != null) { + Element light = svgp.svgRect(x, y, w, h); + if(!Double.isNaN(r)) { + SVGUtil.setAtt(light, SVGConstants.SVG_RX_ATTRIBUTE, r); + SVGUtil.setAtt(light, SVGConstants.SVG_RY_ATTRIBUTE, r); + } + SVGUtil.setAtt(light, SVGConstants.SVG_STYLE_ATTRIBUTE, "fill:url(#"+SVGEffects.LIGHT_GRADIENT_ID+");fill-opacity:.5"); + tag.appendChild(light); + } + + // Add shadow effect: + if(svgp.getIdElement(SVGEffects.SHADOW_ID) != null) { + //Element shadow = svgp.svgRect(x + (w * .05), y + (h * .05), w, h); + //SVGUtil.setAtt(button, SVGConstants.SVG_STYLE_ATTRIBUTE, SVGConstants.CSS_FILL_PROPERTY + ":" + SVGConstants.CSS_BLACK_VALUE); + button.setAttribute(SVGConstants.SVG_FILTER_ATTRIBUTE, "url(#" + SVGEffects.SHADOW_ID + ")"); + //tag.appendChild(shadow); + } + + if(title != null) { + Element label = svgp.svgText(x + w * .5, y + h * .7, title); + label.setAttribute(SVGConstants.SVG_STYLE_ATTRIBUTE, titlecss.inlineCSS()); + tag.appendChild(label); + } + return tag; + } + + /** + * Set the button title + * + * @param title Button title + * @param textcolor Color + */ + public void setTitle(String title, String textcolor) { + this.title = title; + if(titlecss == null) { + titlecss = new CSSClass(this, "text"); + titlecss.setStatement(SVGConstants.CSS_TEXT_ANCHOR_PROPERTY, SVGConstants.CSS_MIDDLE_VALUE); + titlecss.setStatement(SVGConstants.CSS_FILL_PROPERTY, textcolor); + titlecss.setStatement(SVGConstants.CSS_FONT_SIZE_PROPERTY, .6 * h); + } + } +}
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