认证-上报库-自定义导出excel模板-图片处理

jero-boot/jero-boot-modules/src/main/java/com/jero/modules/project/util/CellReference.java

@@ -0,0 +1,112 @@
+/*
+ * Copyright 2013 Haulmont
+ *
+ * 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.jero.modules.project.util;
+
+import org.apache.commons.lang3.ObjectUtils;
+import org.xlsx4j.sml.Cell;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class CellReference implements Comparable {
+    public static final Pattern CELL_COORDINATES_PATTERN = Pattern.compile("([A-z]+)([0-9]+)");
+    private int column;
+    private int row;
+    private String sheet;
+
+    public CellReference(String sheet, int row, int column) {
+        this.column = column;
+        this.row = row;
+        this.sheet = sheet;
+    }
+
+    public CellReference(String sheet, String cellRef) {
+        Matcher matcher = CELL_COORDINATES_PATTERN.matcher(cellRef);
+        if (matcher.find()) {
+            column = XlsxUtils.getNumberFromColumnReference(matcher.group(1));
+            row = Integer.valueOf(matcher.group(2));
+            this.sheet = sheet;
+        } else {
+            throw new RuntimeException(String.format("Wrong cell %s", cellRef));
+        }
+    }
+
+    public CellReference(String sheet, Cell cell) {
+        this(sheet, cell.getR());
+    }
+
+    public CellReference shift(int downShift, int rightShift) {
+        row += downShift;
+        column += rightShift;
+        return this;
+    }
+
+    public CellReference move(int row, int col) {
+        this.row = row;
+        this.column = col;
+        return this;
+    }
+
+    public String toReference() {
+        return XlsxUtils.getColumnReferenceFromNumber(getColumn()) + getRow();
+    }
+
+    public int getColumn() {
+        return column;
+    }
+
+    public int getRow() {
+        return row;
+    }
+
+    public String getSheet() {
+        return sheet;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+
+        CellReference that = (CellReference) o;
+
+        if (column != that.column) return false;
+        if (row != that.row) return false;
+        if (sheet != null ? !sheet.equals(that.sheet) : that.sheet != null) return false;
+
+        return true;
+    }
+
+    @Override
+    public int hashCode() {
+        int result = column;
+        result = 31 * result + row;
+        result = 31 * result + (sheet != null ? sheet.hashCode() : 0);
+        return result;
+    }
+
+    @Override
+    public int compareTo(Object o) {
+        if (o instanceof CellReference) {
+            int rows = ObjectUtils.compare(row, ((CellReference) o).row);
+            int columns = ObjectUtils.compare(column, ((CellReference) o).column);
+            return rows != 0 ? rows : columns;
+
+        } else {
+            throw new IllegalArgumentException("Could not compare with " + o);
+        }
+    }
+}

jero-boot/jero-boot-modules/src/main/java/com/jero/modules/project/util/XlsxUtils.java

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+/*
+ * Copyright 2013 Haulmont
+ *
+ * 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.jero.modules.project.util;
+
+public final class XlsxUtils {
+
+    private static final long PX_PER_INCH = 96;
+    private static final long EMU_PER_INCH = 914400;
+
+    private XlsxUtils() {
+    }
+
+    public static int getNumberFromColumnReference(String columnReference) {
+        int sum = 0;
+
+        for (int i = 0; i < columnReference.length(); i++) {
+            char c = columnReference.charAt(i);
+            int number = ((int) c) - 64 - 1;
+
+            int pow = columnReference.length() - i - 1;
+            sum += Math.pow(26, pow) * (number + 1);
+        }
+        return sum;
+    }
+
+    public static String getColumnReferenceFromNumber(int number) {
+        int remain = 0;
+        StringBuilder ref = new StringBuilder();
+        do {
+
+            remain = (number - 1) % 26;
+            number = (number - 1) / 26;
+
+            ref.append((char) (remain + 64 + 1));
+        } while (number > 0);
+
+        return ref.reverse().toString();
+    }
+
+    public static long convertPxToEmu(long px) {
+        return px * EMU_PER_INCH / PX_PER_INCH;
+    }
+}