com.github.yingzhuo.fastdfs.springboot.domain.upload.ThumbImage Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of fastdfs-spring-boot-starter Show documentation

The newest version!

package com.github.yingzhuo.fastdfs.springboot.domain.upload;

import java.io.Serializable;

/**
 * 缩略图配置
 *  *     支持三种配置
 *     1. 按默认配置
 *     2. 支持按比例缩放
 *     3. 按长宽缩放
 *     如果配置按比例缩放，则按比例计算
 *     如果没有配置按比例缩放，则按长宽缩放
 * 
 *
 * @author tobato
 */
public class ThumbImage implements Serializable {

    private boolean defaultConfig = false;

    private int width;

    private int height;

    private double percent;

    public ThumbImage(int width, int height) {
        this.width = width;
        this.height = height;
    }

    public ThumbImage(double percent) {
        this.percent = percent;
    }

    public ThumbImage() {
        this.defaultConfig = true;
    }

    public int getWidth() {
        return width;
    }

    public int getHeight() {
        return height;
    }

    public double getPercent() {
        return percent;
    }

    public boolean isDefaultConfig() {
        return defaultConfig;
    }

    public String getPrefixName() {
        if (isDefaultConfig()) {
            return getPrefixNameBySize();
        } else if (percent != 0) {
            return getPrefixNameByPercent();
        } else {
            return getPrefixNameBySize();
        }
    }

    private String getPrefixNameBySize() {
        StringBuilder buffer = new StringBuilder();
        buffer.append("_").append(width).append("x").append(height);
        return new String(buffer);
    }

    private String getPrefixNameByPercent() {
        StringBuilder buffer = new StringBuilder();
        buffer.append("_").append(Math.round(100 * percent)).append("p_");
        return new String(buffer);
    }

    public String getThumbImagePath(String masterFilename) {
        StringBuilder buff = new StringBuilder(masterFilename);
        int index = buff.lastIndexOf(".");
        buff.insert(index, getPrefixName());
        return new String(buff);
    }

    public void setDefaultSize(int width, int height) {
        this.width = width;
        this.height = height;
    }

}