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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package org.apache.fop.render;
// FOP
import org.apache.fop.area.Area;
import org.apache.fop.area.Trait;
import org.apache.fop.fonts.Font;
import org.apache.fop.fonts.FontInfo;
import org.apache.fop.fonts.FontResolver;
import org.apache.fop.fonts.FontSetup;
import org.apache.fop.fonts.FontTriplet;
import org.w3c.dom.Document;
// Java
import java.awt.Color;
import java.awt.geom.Rectangle2D;
import java.util.List;
import java.util.Map;
/** Abstract base class of "Print" type renderers. */
public abstract class PrintRenderer extends AbstractRenderer {
/** Font configuration */
protected FontInfo fontInfo;
/** Font resolver */
protected FontResolver fontResolver = null;
/** list of fonts */
protected List fontList = null;
/**
* adds a font list to current list of fonts
* @param fontInfoList font list
*/
public void addFontList(List fontInfoList) {
if (this.fontList == null) {
setFontList(fontInfoList);
} else {
this.fontList.addAll(fontInfoList);
}
}
/**
* @param fontList list of available fonts
*/
public void setFontList(List fontList) {
this.fontList = fontList;
}
/**
* Set up the font info
*
* @param inFontInfo font info to set up
*/
public void setupFontInfo(FontInfo inFontInfo) {
this.fontInfo = inFontInfo;
FontSetup.setup(fontInfo, fontList, fontResolver,
userAgent.getFactory().isBase14KerningEnabled());
}
/**
* Returns the internal font key for a font triplet coming from the area tree
* @param area the area from which to retrieve the font triplet information
* @return the internal font key (F1, F2 etc.) or null if not found
*/
protected String getInternalFontNameForArea(Area area) {
FontTriplet triplet = (FontTriplet)area.getTrait(Trait.FONT);
return fontInfo.getInternalFontKey(triplet);
}
/**
* Returns a Font object constructed based on the font traits in an area
* @param area the area from which to retrieve the font triplet information
* @return the requested Font instance or null if not found
*/
protected Font getFontFromArea(Area area) {
FontTriplet triplet = (FontTriplet)area.getTrait(Trait.FONT);
int size = ((Integer)area.getTrait(Trait.FONT_SIZE)).intValue();
return fontInfo.getFontInstance(triplet, size);
}
/**
* Lightens up a color for groove, ridge, inset and outset border effects.
* @param col the color to lighten up
* @param factor factor by which to lighten up (negative values darken the color)
* @return the modified color
*/
public static Color lightenColor(Color col, float factor) {
// TODO: This function converts the color into the sRGB namespace.
// This should be avoided if possible.
float[] cols = new float[4];
cols = col.getRGBComponents(cols);
if (factor > 0) {
cols[0] += (1.0 - cols[0]) * factor;
cols[1] += (1.0 - cols[1]) * factor;
cols[2] += (1.0 - cols[2]) * factor;
} else {
cols[0] -= cols[0] * -factor;
cols[1] -= cols[1] * -factor;
cols[2] -= cols[2] * -factor;
}
return new Color(cols[0], cols[1], cols[2], cols[3]);
}
/**
* Creates a RendererContext for an image.
* @param x the x coordinate (in millipoints)
* @param y the y coordinate (in millipoints)
* @param width the width of the image (in millipoints)
* @param height the height of the image (in millipoints)
* @param foreignAttributes a Map or foreign attributes, may be null
* @return the RendererContext
*/
protected RendererContext createRendererContext(int x, int y, int width, int height,
Map foreignAttributes) {
RendererContext context;
context = new RendererContext(this, getMimeType());
context.setUserAgent(userAgent);
context.setProperty(RendererContextConstants.WIDTH,
new Integer(width));
context.setProperty(RendererContextConstants.HEIGHT,
new Integer(height));
context.setProperty(RendererContextConstants.XPOS,
new Integer(x));
context.setProperty(RendererContextConstants.YPOS,
new Integer(y));
context.setProperty(RendererContextConstants.PAGE_VIEWPORT,
getCurrentPageViewport());
if (foreignAttributes != null) {
context.setProperty(RendererContextConstants.FOREIGN_ATTRIBUTES, foreignAttributes);
}
return context;
}
/**
* Renders an XML document (SVG for example).
* @param doc the DOM Document containing the XML document to be rendered
* @param ns the namespace URI for the XML document
* @param pos the position for the generated graphic/image
* @param foreignAttributes the foreign attributes containing rendering hints, or null
*/
public void renderDocument(Document doc, String ns, Rectangle2D pos, Map foreignAttributes) {
int x = currentIPPosition + (int) pos.getX();
int y = currentBPPosition + (int) pos.getY();
int width = (int)pos.getWidth();
int height = (int)pos.getHeight();
RendererContext context = createRendererContext(x, y, width, height, foreignAttributes);
renderXML(context, doc, ns);
}
/**
* Get FontResolver
*
* @return FontResolver
*/
public FontResolver getFontResolver() {
if (this.fontResolver == null) {
this.fontResolver = new DefaultFontResolver(super.userAgent);
}
return this.fontResolver;
}
}
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