增加根据裁切图配置与评卷分组拼接配置，将各显示元素坐标转换为原图坐标的通用方法

stmms-biz/src/main/java/cn/com/qmth/stmms/biz/utils/OriginTag.java

@@ -0,0 +1,35 @@
+package cn.com.qmth.stmms.biz.utils;
+
+public class OriginTag {
+
+    private String content;
+
+    private double poxitionX;
+
+    private double poxitionY;
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public double getPoxitionX() {
+        return poxitionX;
+    }
+
+    public void setPoxitionX(double poxitionX) {
+        this.poxitionX = poxitionX;
+    }
+
+    public double getPoxitionY() {
+        return poxitionY;
+    }
+
+    public void setPoxitionY(double poxitionY) {
+        this.poxitionY = poxitionY;
+    }
+
+}

stmms-biz/src/main/java/cn/com/qmth/stmms/biz/utils/PictureConfigTransform.java

@@ -0,0 +1,120 @@
+package cn.com.qmth.stmms.biz.utils;
+
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+
+import cn.com.qmth.stmms.biz.exam.model.MarkGroup;
+import cn.com.qmth.stmms.biz.mark.model.PictureConfigItem;
+
+/**
+ * 根据裁切图配置与评卷分组拼接配置，将各显示元素坐标转换为原图坐标
+ * 
+ * @author luoshi
+ *
+ */
+public class PictureConfigTransform {
+
+    /**
+     * 转换方法
+     * 
+     * @param sliceConfigs
+     *            - 裁切图配置
+     * @param groups
+     *            - 评卷分组与原始元素列表
+     * @return 原图序号与新的显示元素列表，序号从1开始
+     */
+    public static Map<Integer, List<PictureTag>> process(List<PictureConfigItem> sliceConfigs,
+            Map<MarkGroup, List<OriginTag>> groups) {
+        Map<Integer, List<PictureTag>> map = new HashMap<>();
+        if (sliceConfigs.isEmpty()) {
+            return map;
+        }
+        for (Entry<MarkGroup, List<OriginTag>> entry : groups.entrySet()) {
+            MarkGroup group = entry.getKey();
+            List<OriginTag> tags = entry.getValue();
+            List<PictureConfigItem> groupConfigs = group.getPictureConfigList();
+            if (tags.isEmpty() || groupConfigs.isEmpty()) {
+                continue;
+            }
+
+            int maxWidth = 0;
+            int totalHeight = 0;
+            // 计算评卷分组拼接图的总高度与最大宽度
+            for (PictureConfigItem config : groupConfigs) {
+                if (config.getW() == 0 || config.getH() == 0) {
+                    // 兼容老数据，宽高未设置时，表示直接使用整张裁切图
+                    PictureConfigItem sliceConfig = sliceConfigs.size() >= config.getI()
+                            ? sliceConfigs.get(config.getI() - 1)
+                            : null;
+                    if (sliceConfig != null) {
+                        // 直接使用裁切图的宽高
+                        config.setW(sliceConfig.getW());
+                        config.setH(sliceConfig.getH());
+                    }
+                }
+                if (config.getW() > 0 && config.getH() > 0) {
+                    maxWidth = Math.max(maxWidth, config.getW());
+                    totalHeight += config.getH();
+                }
+            }
+            // 遍历所有显示元素
+            for (OriginTag tag : tags) {
+                // 计算显示元素在拼接图内的绝对位置
+                int left = (int) (maxWidth * tag.getPoxitionX());
+                int top = (int) (totalHeight * tag.getPoxitionY());
+                int start = 0;
+                for (PictureConfigItem config : groupConfigs) {
+                    if (config.getW() > 0 && config.getH() > 0) {
+                        if (top <= (config.getH() + start)) {
+                            // 根据绝对高度判断显示元素是否落在当前拼接块
+                            buildSheetTag(map, sliceConfigs, config, tag.getContent(), left, top - start);
+                            break;
+                        } else {
+                            start += config.getH();
+                        }
+                    }
+                }
+            }
+        }
+        return map;
+    }
+
+    /**
+     * 根据计算出的拼接块，构造新的原图显示元素
+     * 
+     * @param tags
+     *            - 原图显示元素集合
+     * @param sliceConfigs
+     *            - 裁切图配置
+     * @param config
+     *            - 当前拼接块配置
+     * @param content
+     *            - 显示元素内容
+     * @param left
+     *            - 在拼接块内的左偏移
+     * @param top
+     *            - 在拼接块内的上偏移
+     */
+    private static void buildSheetTag(Map<Integer, List<PictureTag>> tags, List<PictureConfigItem> sliceConfigs,
+            PictureConfigItem config, String content, int left, int top) {
+        if (sliceConfigs.size() >= config.getI()) {
+            PictureConfigItem sliceConfig = sliceConfigs.get(config.getI() - 1);
+            PictureTag tag = new PictureTag();
+            tag.setContent(content);
+            // 原图内偏移=拼接块内偏移+拼接块在裁切图内偏移+裁切图在原图内偏移
+            tag.setLeft(left + config.getX() + sliceConfig.getX());
+            tag.setTop(top + config.getY() + sliceConfig.getY());
+
+            List<PictureTag> list = tags.get(config.getI());
+            if (list == null) {
+                list = new LinkedList<>();
+                tags.put(config.getI(), list);
+            }
+            list.add(tag);
+        }
+    }
+
+}

stmms-biz/src/main/java/cn/com/qmth/stmms/biz/utils/PictureTag.java

@@ -0,0 +1,35 @@
+package cn.com.qmth.stmms.biz.utils;
+
+public class PictureTag {
+
+    private String content;
+
+    private int left;
+
+    private int top;
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public int getLeft() {
+        return left;
+    }
+
+    public void setLeft(int left) {
+        this.left = left;
+    }
+
+    public int getTop() {
+        return top;
+    }
+
+    public void setTop(int top) {
+        this.top = top;
+    }
+
+}