svn-gvsig-desktop / tags / v2_0_0_Build_2030 / libraries / org.gvsig.symbology / org.gvsig.symbology.lib / org.gvsig.symbology.lib.impl / src / main / java / org / gvsig / symbology / fmap / mapcontext / rendering / symbol / text / impl / SimpleTextSymbol.java @ 35919
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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package org.gvsig.symbology.fmap.mapcontext.rendering.symbol.text.impl; |
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import java.awt.Color; |
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import java.awt.Font; |
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import java.awt.FontMetrics; |
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import java.awt.Graphics2D; |
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import java.awt.Rectangle; |
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import java.awt.RenderingHints; |
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import java.awt.Shape; |
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import java.awt.font.FontRenderContext; |
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import java.awt.font.GlyphVector; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.Rectangle2D; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import org.gvsig.compat.print.PrintAttributes; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.GeometryManager; |
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import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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import org.gvsig.fmap.geom.primitive.GeneralPathX; |
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import org.gvsig.fmap.geom.primitive.Point; |
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import org.gvsig.fmap.mapcontext.MapContextLocator; |
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import org.gvsig.fmap.mapcontext.ViewPort; |
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import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol; |
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import org.gvsig.fmap.mapcontext.rendering.symbols.ITextSymbol; |
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import org.gvsig.fmap.mapcontext.rendering.symbols.SymbolDrawingException; |
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import org.gvsig.fmap.mapcontext.rendering.symbols.SymbolManager; |
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import org.gvsig.fmap.mapcontext.rendering.symbols.SymbolPreferences; |
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import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.impl.AbstractSymbol; |
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import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.impl.CartographicSupportToolkit; |
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import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.text.ISimpleTextSymbol; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dynobject.DynStruct; |
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import org.gvsig.tools.persistence.PersistenceManager; |
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import org.gvsig.tools.persistence.PersistentState; |
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import org.gvsig.tools.persistence.exception.PersistenceException; |
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import org.gvsig.tools.task.Cancellable; |
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import org.gvsig.tools.util.Callable; |
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/**
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* SimpleTextSymbol is a class used to create symbols composed using a text defined by
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* the user.This text can be edited (changing the color, the font of the characters, and
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* the rotation of the text).
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* @author 2005-2008 jaume dominguez faus - jaume.dominguez@iver.es
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* @author 2009- <a href="cordinyana@gvsig.org">C?sar Ordi?ana</a> - gvSIG team
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*/
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public class SimpleTextSymbol extends AbstractSymbol implements ITextSymbol, ISimpleTextSymbol { |
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final static private Logger LOG = LoggerFactory.getLogger(SimpleTextSymbol.class); |
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public static final String SIMPLE_TEXT_SYMBOL_PERSISTENCE_DEFINITION_NAME = "SimpleTextSymbol"; |
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private static final String FIELD_TEXT = "text"; |
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private static final String FIELD_FONT = "font"; |
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private static final String FIELD_TEXT_COLOR = "textColor"; |
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private static final String FIELD_ROTATION = "rotation"; |
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private static final String FIELD_AUTO_RESIZE = "autoResize"; |
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private static final GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
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private String text = ""; |
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private Font font; |
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private Color textColor; |
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private double rotation; |
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private FontRenderContext frc = new FontRenderContext( |
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new AffineTransform(), false, true); |
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private boolean autoresize; |
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public SimpleTextSymbol() {
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super();
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SymbolPreferences preferences = |
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MapContextLocator.getSymbolManager().getSymbolPreferences(); |
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font = preferences.getDefaultSymbolFont(); |
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textColor = preferences.getDefaultSymbolColor(); |
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} |
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public void draw(Graphics2D g, AffineTransform affineTransform, |
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Geometry geom, Feature feature, Cancellable cancel) { |
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if (!isShapeVisible()) {
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return;
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} |
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Point point = (Point)geom; |
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point.transform(affineTransform); |
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g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); |
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g.setColor(textColor); |
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g.setFont(font); |
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g.translate(point.getX(), point.getY()); |
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g.rotate(rotation); |
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Rectangle2D bounds = getBounds();
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// getBounds devuelve el bounds de un texto dibujado de manera que
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// la linea base de la primera letra est? en el punto (0,0).
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// Por eso, si queremos alinear el texto de manera que la parte superior
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// izquierda de la primera letra est? en (0,0) debemos moverlo seg?n
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// el valor de la ordenada, en lugar de seg?n su altura.
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g.drawString(getText(), 0, (int)-bounds.getY());//(int) bounds.getHeight()); |
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g.rotate(-rotation); |
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g.translate(-point.getX(), -point.getY()); |
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} |
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public void drawInsideRectangle(Graphics2D g, |
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AffineTransform scaleInstance, Rectangle r, PrintAttributes properties) throws SymbolDrawingException { |
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int s = getFont().getSize();
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if (autoresize) {
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if (s==0) { |
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s =1;
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setFontSize(s); |
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} |
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g.setFont(getFont()); |
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FontMetrics fm = g.getFontMetrics();
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Rectangle2D rect = fm.getStringBounds(text, g);
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double width = rect.getWidth();
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double height = rect.getHeight();
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double rWidth = r.getWidth();
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double rHeight = r.getHeight();
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double ratioText = width/height;
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double ratioRect = rWidth/rHeight;
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if (ratioText>ratioRect) {
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s = (int) (s*(rWidth/width));
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} else {
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s = (int) (s*(rHeight/height));
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} |
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// r.setLocation(r.x, (int) Math.round(r.getY()+r.getHeight()));
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} |
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setFontSize(s); |
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// g.setColor(Color.red);
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// g.draw(r);
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try {
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if (properties==null) |
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draw(g, null, geomManager.createPoint(r.getX(), r.getY(),
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SUBTYPES.GEOM2D), null, null); |
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else
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print(g, new AffineTransform(), geomManager.createPoint(r.getX(), r.getY(), SUBTYPES.GEOM2D), properties); |
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} catch (CreateGeometryException e) {
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LOG.error("Error creatint a point", e);
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e.printStackTrace(); |
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} |
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} |
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public int getOnePointRgb() { |
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return textColor.getRGB();
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} |
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public void getPixExtentPlus(org.gvsig.fmap.geom.Geometry geom, float[] distances, |
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ViewPort viewPort, int dpi) {
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throw new Error("Not yet implemented!"); |
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} |
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public ISymbol getSymbolForSelection() {
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return this; // a text is not selectable |
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} |
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public int getSymbolType() { |
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//This method returned the deleted type Geometry.TYPES.TEXT. I suppose that now
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//it has to retrun geometry
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return Geometry.TYPES.GEOMETRY;
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} |
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public boolean isSuitableFor(Geometry geom) { |
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return true; |
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} |
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public String getClassName() { |
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return getClass().getName();
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} |
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public void print(Graphics2D g, AffineTransform at, org.gvsig.fmap.geom.Geometry geom, PrintAttributes properties){ |
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float originalSize = getFont().getSize2D();
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float size=originalSize;
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// scale it to size
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int pq = properties.getPrintQuality();
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if (pq == PrintAttributes.PRINT_QUALITY_NORMAL){
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size *= (double) 300/72; |
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}else if (pq == PrintAttributes.PRINT_QUALITY_HIGH){ |
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size *= (double) 600/72; |
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}else if (pq == PrintAttributes.PRINT_QUALITY_DRAFT){ |
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// d *= 72/72; // (which is the same than doing nothing)
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} |
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setFont(getFont().deriveFont(size)); |
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draw(g,at,geom, null, null); |
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setFont(getFont().deriveFont(originalSize)); |
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} |
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public String getText() { |
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return text;
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} |
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public Font getFont() { |
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return font;
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} |
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public Color getTextColor() { |
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return textColor;
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} |
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public void setText(String text) { |
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this.text = text;
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} |
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public void setFont(Font font) { |
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if (font == null) { |
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LOG.warn("font <-- null");
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return;
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} |
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this.font = font;
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} |
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public void setTextColor(Color color) { |
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this.textColor = color;
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} |
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public Color getColor() { |
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return getTextColor();
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} |
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public void setColor(Color color) { |
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setTextColor(color); |
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} |
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public void setFontSize(double size) { |
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Font newFont = new Font(font.getName(), font.getStyle(), (int) size); |
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// if (newFont == null) {
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// logger.warn(
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// "Font(" + font.getName() + ", "
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// + font.getStyle() + ", " + (int) size + " --> null");
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// } else {
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this.font = newFont;
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// }
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} |
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public double getRotation() { |
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return rotation;
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} |
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/**
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* Defines the angle of rotation for the text that composes the symbol
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*
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* @param rotation
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*/
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public void setRotation(double rotation) { |
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this.rotation = rotation;
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} |
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/**
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* Returns an Geometry which represents a rectangle containing the text in
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* <b>screen</b> units.
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*/
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public Geometry getTextWrappingShape(org.gvsig.fmap.geom.primitive.Point p) {
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Font font = getFont();
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GlyphVector gv = font.createGlyphVector(frc, text);
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Shape shape = gv.getOutline((float) p.getX(), (float) p.getY()); |
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Geometry myFShape; |
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try {
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myFShape = geomManager.createSurface(new GeneralPathX(shape
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.getBounds2D().getPathIterator(null)), SUBTYPES.GEOM2D);
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myFShape.transform(AffineTransform.getTranslateInstance(p.getX(), p.getY()));
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if (rotation != 0) { |
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myFShape.transform(AffineTransform.getRotateInstance(rotation));
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} |
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return myFShape;
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} catch (CreateGeometryException e) {
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LOG.error("Error creating a surface", e);
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e.printStackTrace(); |
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} |
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return null; |
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} |
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public Rectangle getBounds() { |
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// FontMetrics fm = g.getFontMetrics();
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// Rectangle2D rect = fm.getStringBounds("graphics", g);
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Rectangle bounds = null; |
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try {
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bounds = getTextWrappingShape(geomManager.createPoint(0,0, SUBTYPES.GEOM2D)).getShape().getBounds(); |
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} catch (CreateGeometryException e) {
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LOG.error("Error creating a point", e);
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} |
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return bounds;
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} |
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public void setCartographicSize(double cartographicSize, Geometry geom) { |
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setFontSize(cartographicSize); |
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} |
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public double toCartographicSize(ViewPort viewPort, double dpi, Geometry geom) { |
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double oldSize = getFont().getSize();
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setCartographicSize(getCartographicSize( |
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viewPort, |
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dpi, |
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geom), |
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geom); |
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return oldSize;
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} |
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public double getCartographicSize(ViewPort viewPort, double dpi, Geometry geom) { |
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return CartographicSupportToolkit.
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getCartographicLength(this,
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getFont().getSize(), |
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viewPort, |
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dpi); |
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} |
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public boolean isAutoresizeEnabled() { |
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return autoresize;
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} |
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public void setAutoresizeEnabled(boolean autoresizeFlag) { |
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this.autoresize = autoresizeFlag;
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} |
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public Object clone() throws CloneNotSupportedException { |
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SimpleTextSymbol copy = (SimpleTextSymbol) super.clone();
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return copy;
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} |
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public void loadFromState(PersistentState state) |
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throws PersistenceException {
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// Set parent fill symbol properties
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super.loadFromState(state);
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// Set own properties
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setAutoresizeEnabled(state.getBoolean(FIELD_AUTO_RESIZE)); |
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setFont((Font) state.get(FIELD_FONT));
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setRotation(state.getDouble(FIELD_ROTATION)); |
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setText(state.getString(FIELD_TEXT)); |
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setTextColor((Color) state.get(FIELD_TEXT_COLOR));
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} |
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public void saveToState(PersistentState state) throws PersistenceException { |
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// Save parent fill symbol properties
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super.saveToState(state);
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// Save own properties
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state.set(FIELD_AUTO_RESIZE, isAutoresizeEnabled()); |
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state.set(FIELD_FONT, getFont()); |
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state.set(FIELD_ROTATION, getRotation()); |
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state.set(FIELD_TEXT, getText()); |
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state.set(FIELD_TEXT_COLOR, getTextColor()); |
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} |
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public static class RegisterPersistence implements Callable { |
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public Object call() throws Exception { |
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PersistenceManager manager = ToolsLocator.getPersistenceManager(); |
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if( manager.getDefinition(SIMPLE_TEXT_SYMBOL_PERSISTENCE_DEFINITION_NAME)==null ) { |
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DynStruct definition = manager.addDefinition( |
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SimpleTextSymbol.class, |
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SIMPLE_TEXT_SYMBOL_PERSISTENCE_DEFINITION_NAME, |
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SIMPLE_TEXT_SYMBOL_PERSISTENCE_DEFINITION_NAME+" Persistence definition",
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null,
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null
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); |
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// Extend the Symbol base definition
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definition.extend(manager.getDefinition(SYMBOL_PERSISTENCE_DEFINITION_NAME)); |
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// Auto resize?
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definition.addDynFieldBoolean(FIELD_AUTO_RESIZE) |
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.setMandatory(true);
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// Font
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definition.addDynFieldObject(FIELD_FONT) |
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.setClassOfValue(Font.class)
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.setMandatory(true);
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// Rotation
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definition.addDynFieldDouble(FIELD_ROTATION) |
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.setMandatory(true);
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// Text
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definition.addDynFieldString(FIELD_TEXT); |
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// Text color
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definition.addDynFieldObject(FIELD_TEXT_COLOR) |
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.setClassOfValue(Color.class)
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.setMandatory(true);
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} |
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return Boolean.TRUE; |
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} |
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} |
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public static class RegisterSymbol implements Callable { |
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public Object call() throws Exception { |
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int[] shapeTypes; |
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SymbolManager manager = MapContextLocator.getSymbolManager(); |
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//This method registered the deleted type Geometry.TYPES.TEXT. I suppose that now
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//it has to register geometry
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shapeTypes = new int[] { Geometry.TYPES.GEOMETRY }; |
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manager.registerSymbol(ITextSymbol.SYMBOL_NAME, |
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shapeTypes, |
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SimpleTextSymbol.class); |
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return Boolean.TRUE; |
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} |
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} |
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} |