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Issue 1021 command line encoder

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git-svn-id: https://zxing.googlecode.com/svn/trunk@1990 59b500cc-1b3d-0410-9834-0bbf25fbcc57
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srowen 2011-10-22 17:07:57 +00:00
parent 352dc25139
commit 92b240a5c1
1 changed files with 100 additions and 0 deletions
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javase/src/com/google/zxing/client/j2se/CommandLineEncoder.java Normal file
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/*
* Copyright 2011 ZXing authors
*
* 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.google.zxing.client.j2se;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.common.BitMatrix;
import java.io.File;
import java.util.Locale;
/**
* Command line utility for encoding barcodes.
*
* @author Sean Owen
*/
public final class CommandLineEncoder {
private static final BarcodeFormat DEFAULT_BARCODE_FORMAT = BarcodeFormat.QR_CODE;
private static final String DEFAULT_IMAGE_FORMAT = "PNG";
private static final String DEFAULT_OUTPUT_FILE = "out";
private static final int DEFAULT_WIDTH = 300;
private static final int DEFAULT_HEIGHT = 300;
private CommandLineEncoder() {
}
public static void main(String[] args) throws Exception {
if (args.length == 0) {
printUsage();
return;
}
BarcodeFormat barcodeFormat = DEFAULT_BARCODE_FORMAT;
String imageFormat = DEFAULT_IMAGE_FORMAT;
String outFileString = DEFAULT_OUTPUT_FILE;
int width = DEFAULT_WIDTH;
int height = DEFAULT_HEIGHT;
for (String arg : args) {
if (arg.startsWith("--barcode_format")) {
barcodeFormat = BarcodeFormat.valueOf(arg.split("=")[1]);
} else if (arg.startsWith("--image_format")) {
imageFormat = arg.split("=")[1];
} else if (arg.startsWith("--output")) {
outFileString = arg.split("=")[1];
} else if (arg.startsWith("--width")) {
width = Integer.parseInt(arg.split("=")[1]);
} else if (arg.startsWith("--height")) {
height = Integer.parseInt(arg.split("=")[1]);
}
}
if (DEFAULT_OUTPUT_FILE.equals(outFileString)) {
outFileString += '.' + imageFormat.toLowerCase(Locale.ENGLISH);
}
String contents = null;
for (String arg : args) {
if (!arg.startsWith("--")) {
contents = arg;
break;
}
}
if (contents == null) {
printUsage();
return;
}
MultiFormatWriter barcodeWriter = new MultiFormatWriter();
BitMatrix matrix = barcodeWriter.encode(contents, barcodeFormat, width, height);
MatrixToImageWriter.writeToFile(matrix, imageFormat, new File(outFileString));
}
private static void printUsage() {
System.err.println("Encodes barcode images using the ZXing library\n");
System.err.println("usage: CommandLineEncoder [ options ] content_to_encode");
System.err.println(" --barcode_format=format: Format to encode, from BarcodeFormat class. " +
"Not all formats are supported. Defaults to QR_CODE.");
System.err.println(" --image_format=format: image output format, such as PNG, JPG, GIF. Defaults to PNG");
System.err.println(" --output=filename: File to write to. Defaults to out.png");
System.err.println(" --width=pixels: Image width. Defaults to 300");
System.err.println(" --height=pixels: Image height. Defaults to 300");
}
}