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sdk-common library used by other Android tools libraries.
/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed 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.
*/
package com.android.ide.common.vectordrawable;
import com.android.annotations.Nullable;
import com.google.common.collect.ImmutableMap;
import org.w3c.dom.Node;
import java.awt.geom.AffineTransform;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Represent a SVG file's leave element.
*/
class SvgLeafNode extends SvgNode {
private static Logger logger = Logger.getLogger(SvgLeafNode.class.getSimpleName());
private String mPathData;
public SvgLeafNode(SvgTree svgTree, Node node, String nodeName) {
super(svgTree, node, nodeName);
}
private String getAttributeValues(ImmutableMap presentationMap) {
StringBuilder sb = new StringBuilder("/>\n");
for (String key : mVdAttributesMap.keySet()) {
String vectorDrawableAttr = presentationMap.get(key);
String svgValue = mVdAttributesMap.get(key);
String vdValue = svgValue.trim();
// There are several cases we need to convert from SVG format to
// VectorDrawable format. Like "none", "3px" or "rgb(255, 0, 0)"
if ("none".equals(vdValue)) {
vdValue = "#00000000";
} else if (vdValue.endsWith("px")){
vdValue = vdValue.substring(0, vdValue.length() - 2);
} else if (vdValue.startsWith("rgb")) {
vdValue = vdValue.substring(3, vdValue.length());
vdValue = convertRGBToHex(vdValue);
if (vdValue == null) {
getTree().logErrorLine("Unsupported Color format " + vdValue, getDocumentNode(),
SvgTree.SvgLogLevel.ERROR);
}
}
String attr = "\n " + vectorDrawableAttr + "=\"" +
vdValue + "\"";
sb.insert(0, attr);
}
return sb.toString();
}
public static int clamp(int val, int min, int max) {
return Math.max(min, Math.min(max, val));
}
/**
* SVG allows using rgb(int, int, int) or rgb(float%, float%, float%) to
* represent a color, but Android doesn't. Therefore, we need to convert
* them into #RRGGBB format.
* @param svgValue in either "(int, int, int)" or "(float%, float%, float%)"
* @return #RRGGBB in hex format, or null, if an error is found.
*/
@Nullable
private String convertRGBToHex(String svgValue) {
// We don't support color keyword yet.
// http://www.w3.org/TR/SVG11/types.html#ColorKeywords
String result = null;
String functionValue = svgValue.trim();
functionValue = svgValue.substring(1, functionValue.length() - 1);
// After we cut the "(", ")", we can deal with the numbers.
String[] numbers = functionValue.split(",");
if (numbers.length != 3) {
return null;
}
int[] color = new int[3];
for (int i = 0; i < 3; i ++) {
String number = numbers[i];
number = number.trim();
if (number.endsWith("%")) {
float value = Float.parseFloat(number.substring(0, number.length() - 1));
color[i] = clamp((int)(value * 255.0f / 100.0f), 0, 255);
} else {
int value = Integer.parseInt(number);
color[i] = clamp(value, 0, 255);
}
}
StringBuilder builder = new StringBuilder();
builder.append("#");
for (int i = 0; i < 3; i ++) {
builder.append(String.format("%02X", color[i]));
}
result = builder.toString();
assert result.length() == 7;
return result;
}
@Override
public void dumpNode(String indent) {
logger.log(Level.FINE, indent + (mPathData != null ? mPathData : " null pathData ") +
(mName != null ? mName : " null name "));
}
public void setPathData(String pathData) {
mPathData = pathData;
}
@Override
public boolean isGroupNode() {
return false;
}
@Override
public void transformIfNeeded(AffineTransform rootTransform) {
if ((mPathData == null)) {
// Nothing to draw and transform, early return.
return;
}
VdPath.Node[] n = PathParser.parsePath(mPathData);
AffineTransform finalTransform = new AffineTransform(rootTransform);
finalTransform.concatenate(mStackedTransform);
boolean needsConvertRelativeMoveAfterClose = VdPath.Node.hasRelMoveAfterClose(n);
if (!finalTransform.isIdentity() || needsConvertRelativeMoveAfterClose) {
VdPath.Node.transform(finalTransform, n);
}
String decimalFormatString = getDecimalFormatString();
mPathData = VdPath.Node.NodeListToString(n, decimalFormatString);
}
private String getDecimalFormatString() {
float viewportWidth = getTree().getViewportWidth();
float viewportHeight = getTree().getViewportHeight();
float minSize = Math.min(viewportHeight, viewportWidth);
float exponent = Math.round(Math.log10(minSize));
int decimalPlace = (int) Math.floor(exponent - 4);
String decimalFormatString = "#";
if (decimalPlace < 0) {
// Build a string with decimal places for "#.##...", and cap on 6 digits.
if (decimalPlace < -6) {
decimalPlace = -6;
}
decimalFormatString += ".";
for (int i = 0 ; i < -decimalPlace; i++) {
decimalFormatString += "#";
}
}
return decimalFormatString;
}
@Override
public void flattern(AffineTransform transform) {
mStackedTransform.setTransform(transform);
mStackedTransform.concatenate(mLocalTransform);
if (mVdAttributesMap.containsKey(Svg2Vector.SVG_STROKE_WIDTH)
&& ((mStackedTransform.getType() | AffineTransform.TYPE_MASK_SCALE) != 0) ) {
getTree().logErrorLine("We don't scale the stroke width!", getDocumentNode(),
SvgTree.SvgLogLevel.WARNING);
}
}
@Override
public void writeXML(OutputStreamWriter writer) throws IOException {
// First decide whether or not we can skip this path, since it draw nothing out.
String fillColor = mVdAttributesMap.get(Svg2Vector.SVG_FILL_COLOR);
String strokeColor = mVdAttributesMap.get(Svg2Vector.SVG_STROKE_COLOR);
logger.log(Level.FINE, "fill color " + fillColor);
boolean emptyFill = fillColor != null && ("none".equals(fillColor) || "#0000000".equals(fillColor));
boolean emptyStroke = strokeColor == null || "none".equals(strokeColor);
boolean emptyPath = mPathData == null;
boolean nothingToDraw = emptyPath || emptyFill && emptyStroke;
if (nothingToDraw) {
return;
}
// Second, write the color info handling the default values.
writer.write(" © 2015 - 2024 Weber Informatics LLC | Privacy Policy