REPORT-40684 绘制表格辅助线时提前适配合并单元格，去除合并之后使用背景覆盖辅助线的方式

designer-realize/src/main/java/com/fr/grid/GridUI.java

@@ -49,6 +49,7 @@ import com.fr.stable.script.CalculatorUtils;
 import com.fr.stable.unit.FU;
 import com.fr.stable.AssistUtils;
 import com.fr.third.antlr.ANTLRException;
+import com.fr.third.guava.collect.HashMultimap;
 
 import javax.swing.JComponent;
 import javax.swing.UIManager;
@@ -73,6 +74,7 @@ import java.awt.geom.Rectangle2D;
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
+import java.util.Objects;
 
 public class GridUI extends ComponentUI {
 
@@ -91,6 +93,7 @@ public class GridUI extends ComponentUI {
     protected List paintCellElementList = new ArrayList();
     protected List paintCellElementRectangleList = new ArrayList();
     protected List paginateLineList = new ArrayList(); // 分页线
+    protected HashMultimap<CellPosition, Integer> mergeCellElementTable = HashMultimap.create();
     // 为了画白色的背景.
     protected static Background WHITE_Backgorund = ColorBackground.getInstance(Color.WHITE);
     // CellElementPainter
@@ -247,7 +250,7 @@ public class GridUI extends ComponentUI {
                 - reportSettings.getFooterHeight().toPixD(resolution);
     }
 
-    private void paintGridLine(Graphics g, Grid grid, double realWidth, double realHeight,
+    private void paintGridLine(Graphics g, Grid grid, TemplateElementCase report, double realWidth, double realHeight,
                                int resolution) {
         Graphics2D g2d = (Graphics2D) g;
 
@@ -257,22 +260,51 @@ public class GridUI extends ComponentUI {
 
         // 分页线
         paginateLineList.clear();
+        // 合并单元格
+        mergeCellElementTable.clear();
 
         boolean isShowVerticalPaginateLine = grid.getPaginateLineShowType() == Grid.MULTIPLE_PAGINATE_LINE;
         boolean isShowHorizontalPaginateLine = grid.getPaginateLineShowType() != Grid.NO_PAGINATE_LINE;
 
-        new DrawVerticalLineHelper(grid.getVerticalBeginValue(), verticalEndValue,
+        Iterator cells = report.intersect(grid.getHorizontalBeginValue(), grid.getVerticalBeginValue(),
-                grid.isShowGridLine(), isShowVerticalPaginateLine, rowHeightList, paperPaintHeight,
+                horizontalEndValue - grid.getHorizontalBeginValue(), verticalEndValue - grid.getVerticalBeginValue());
-                paginateLineList, realWidth, resolution).iterateStart2End(g2d);
+        while (cells.hasNext()) {
+            TemplateCellElement cellElement = (TemplateCellElement) cells.next();
+            if (cellElement == null) {
+                continue;
+            }
+            int columnSpan = cellElement.getColumnSpan();
+            int rowSpan = cellElement.getRowSpan();
+            if (columnSpan > 1 || rowSpan > 1) {
+                for (int c = 0; c < columnSpan - 1; c++) {
+                    for (int r = 0; r < rowSpan; r++) {
+                        mergeCellElementTable.put(CellPosition.value(cellElement.getRow() + r, cellElement.getColumn() + c), CellPosition.RIGHT);
+                    }
+                }
+                for (int r = 0; r < rowSpan - 1; r++) {
+                    for (int c = 0; c < columnSpan; c++) {
+                        mergeCellElementTable.put(CellPosition.value(cellElement.getRow() + r, cellElement.getColumn() + c), CellPosition.BOTTOM);
+                    }
+                }
+            }
+        }
+        GridRange gridRange = GridRange.range(grid.getHorizontalBeginValue(), horizontalEndValue, grid.getVerticalBeginValue(), verticalEndValue)
+                .rangeList(rowHeightList, columnWidthList)
+                .realSize(realWidth, realHeight);
 
-        new DrawHorizontalLineHelper(grid.getHorizontalBeginValue(), horizontalEndValue,
+        new DrawVerticalLineHelper(gridRange, grid.isShowGridLine(),
-                grid.isShowGridLine(), isShowHorizontalPaginateLine, columnWidthList, paperPaintWidth,
+                isShowVerticalPaginateLine, paperPaintHeight,
-                paginateLineList, realHeight, resolution).iterateStart2End(g2d);
+                paginateLineList, resolution).iterateStart2End(g2d);
+
+        new DrawHorizontalLineHelper(gridRange, grid.isShowGridLine(),
+                isShowHorizontalPaginateLine, paperPaintWidth,
+                paginateLineList, resolution).iterateStart2End(g2d);
     }
 
     /**
      * 最后处理
      */
+    @Override
     public void finalize() {
         try {
             super.finalize();
@@ -285,80 +317,34 @@ public class GridUI extends ComponentUI {
     }
 
     private static abstract class DrawLineHelper {
-        private int startIndex;
+        protected GridRange gridRange;
-        private int endIndex;
 
-        private boolean showGridLine;
+        protected boolean showGridLine;
-        private boolean showPaginateLine;
+        protected boolean showPaginateLine;
 
-        private DynamicUnitList sizeList;
+        protected double paperPaintSize;
-        private double paperPaintSize;
 
-        private List paginateLineList;
+        protected List paginateLineList;
 
         Line2D tmpLine2D = new Line2D.Double(0, 0, 0, 0);
 
-        private int resolution;
+        protected int resolution;
 
-        private static  final double THRESHOLD = 1.0E-4D;
+        protected static final double THRESHOLD = 1.0E-4D;
 
-        DrawLineHelper(int startIndex, int endIndex, boolean showGridLine,
+        DrawLineHelper(GridRange gridRange, boolean showGridLine,
-                       boolean showPaginateLine, DynamicUnitList sizeList, double paperPaintSize,
+                       boolean showPaginateLine, double paperPaintSize,
                        List paginateLineList, int resolution) {
-            this.startIndex = startIndex;
+            this.gridRange = gridRange;
-            this.endIndex = endIndex;
             this.showGridLine = showGridLine;
             this.showPaginateLine = showPaginateLine;
-            this.sizeList = sizeList;
             this.paperPaintSize = paperPaintSize;
 
             this.paginateLineList = paginateLineList;
             this.resolution = resolution;
         }
 
-        protected void iterateStart2End(Graphics2D g2d) {
+        protected abstract void iterateStart2End(Graphics2D g2d);
-            float tmpSize = 0, paperSumSize = 0, sumSize = 0;
-            for (int i = 0; i <= endIndex; i++) {
-                // denny: 开始
-                if (i == 0) {
-                    i = startIndex;
-
-                    // denny: 增加从0到Grid左边被hide的列宽
-                    for (int k = 0; k < startIndex; k++) {
-                        tmpSize = sizeList.get(k).toPixF(resolution);
-
-                        paperSumSize += tmpSize;
-                        if (paperSumSize >= paperPaintSize) {
-                            paperSumSize = tmpSize;
-                        }
-                    }
-                }
-
-                // adjust height.
-                tmpSize = sizeList.get(i).toPixF(resolution);
-                paperSumSize += tmpSize;
-
-                if (showGridLine) {// paint line.
-                    setLine2D((int) sumSize);
-                    g2d.draw(tmpLine2D);
-                }
-
-                // paint paper margin line.
-                if (showPaginateLine && paperSumSize - paperPaintSize > THRESHOLD) {
-                    paginateLineList.add(getPaginateLine2D((int) sumSize));
-                    paperSumSize = tmpSize;
-                }
-
-                sumSize += tmpSize;
-            }
-
-            // paint 最后一个横线..
-            if (showGridLine) {
-                drawLastLine(g2d, (int) sumSize);
-            }
-        }
-
-        protected abstract void setLine2D(int sumSize);
 
         protected abstract Line2D.Double getPaginateLine2D(int sumSize);
 
@@ -366,14 +352,12 @@ public class GridUI extends ComponentUI {
     }
 
     private class DrawVerticalLineHelper extends DrawLineHelper {
-        private double realWidth;
 
-        DrawVerticalLineHelper(int startIndex, int endIndex, boolean showGridLine,
+        DrawVerticalLineHelper(GridRange gridRange, boolean showGridLine,
-                               boolean showPaginateLine, DynamicUnitList unitSizeList, double paperPaintSize,
+                               boolean showPaginateLine, double paperPaintSize,
-                               List paginateLineList, double realWidth, int resolution) {
+                               List paginateLineList, int resolution) {
-            super(startIndex, endIndex, showGridLine, showPaginateLine, unitSizeList,
+            super(gridRange, showGridLine, showPaginateLine,
                     paperPaintSize, paginateLineList, resolution);
-            this.realWidth = realWidth;
         }
 
         @Override
@@ -382,25 +366,58 @@ public class GridUI extends ComponentUI {
         }
 
         @Override
-        protected void setLine2D(int sumHeight) {
+        protected void drawLastLine(Graphics2D g2d, int sumHeight) {
-            tmpLine2D.setLine(0, sumHeight, realWidth, sumHeight);
+            GraphHelper.drawLine(g2d, 0, sumHeight, gridRange.realWidth, sumHeight);
         }
 
         @Override
-        protected void drawLastLine(Graphics2D g2d, int sumHeight) {
+        protected void iterateStart2End(Graphics2D g2d) {
-            GraphHelper.drawLine(g2d, 0, sumHeight, realWidth, sumHeight);
+            float rowHeight, paperYAxisSumSize = 0, yAxisSumSize = 0;
+            for (int i = 0; i <= gridRange.yEndIndex; i++) {
+                if (i == 0) {
+                    i = gridRange.yBeginIndex;
+                    for (int k = 0; k < gridRange.yBeginIndex; k++) {
+                        rowHeight = gridRange.rowHeightList.get(k).toPixF(resolution);
+
+                        paperYAxisSumSize += rowHeight;
+                        if (paperYAxisSumSize >= paperPaintSize) {
+                            paperYAxisSumSize = rowHeight;
+                        }
+                    }
+                }
+                rowHeight = gridRange.rowHeightList.get(i).toPixF(resolution);
+                paperYAxisSumSize += rowHeight;
+                if (showGridLine) {
+                    float columnWidth, xAxisSumSize = 0;
+                    for (int j = gridRange.xBeginIndex; j <= gridRange.xEndIndex; j++) {
+                        columnWidth = gridRange.columnWidthList.get(j).toPixF(resolution);
+                        if (!mergeCellElementTable.get(CellPosition.value(i - 1, j)).contains(CellPosition.BOTTOM)) {
+                            tmpLine2D.setLine(xAxisSumSize, yAxisSumSize, xAxisSumSize + columnWidth, yAxisSumSize);
+                            g2d.draw(tmpLine2D);
+                        }
+                        xAxisSumSize += columnWidth;
+                    }
+                }
+                if (showPaginateLine && paperYAxisSumSize - paperPaintSize > THRESHOLD) {
+                    paginateLineList.add(getPaginateLine2D((int) yAxisSumSize));
+                    paperYAxisSumSize = rowHeight;
+                }
+                yAxisSumSize += rowHeight;
+            }
+            // paint 最后一个横线..
+            if (showGridLine) {
+                drawLastLine(g2d, (int) yAxisSumSize);
+            }
         }
     }
 
     private class DrawHorizontalLineHelper extends DrawLineHelper {
-        private double realHeight;
 
-        DrawHorizontalLineHelper(int startIndex, int endIndex, boolean showGridLine,
+        DrawHorizontalLineHelper(GridRange gridRange, boolean showGridLine,
-                                 boolean showPaginateLine, DynamicUnitList unitSizeList, double paperPaintSize,
+                                 boolean showPaginateLine, double paperPaintSize,
-                                 List paginateLineList, double realHeight, int resolution) {
+                                 List paginateLineList, int resolution) {
-            super(startIndex, endIndex, showGridLine, showPaginateLine, unitSizeList,
+            super(gridRange, showGridLine, showPaginateLine,
                     paperPaintSize, paginateLineList, resolution);
-            this.realHeight = realHeight;
         }
 
         @Override
@@ -409,13 +426,47 @@ public class GridUI extends ComponentUI {
         }
 
         @Override
-        protected void setLine2D(int sumWidth) {
+        protected void drawLastLine(Graphics2D g2d, int sumWidth) {
-            tmpLine2D.setLine(sumWidth, 0, sumWidth, realHeight);
+            GraphHelper.drawLine(g2d, sumWidth, 0, sumWidth, gridRange.realHeight);
         }
 
         @Override
-        protected void drawLastLine(Graphics2D g2d, int sumWidth) {
+        protected void iterateStart2End(Graphics2D g2d) {
-            GraphHelper.drawLine(g2d, sumWidth, 0, sumWidth, realHeight);
+            float columnWidth, paperXAxisSumSize = 0, xAxisSumSize = 0;
+            for (int i = 0; i <= gridRange.xEndIndex; i++) {
+                if (i == 0) {
+                    i = gridRange.xBeginIndex;
+                    for (int k = 0; k < gridRange.xBeginIndex; k++) {
+                        columnWidth = gridRange.columnWidthList.get(k).toPixF(resolution);
+                        paperXAxisSumSize += columnWidth;
+                        if (paperXAxisSumSize >= paperPaintSize) {
+                            paperXAxisSumSize = columnWidth;
+                        }
+                    }
+                }
+                columnWidth = gridRange.columnWidthList.get(i).toPixF(resolution);
+                paperXAxisSumSize += columnWidth;
+                if (showGridLine) {
+                    float rowHeight, yAxisSumSize = 0;
+                    for (int j = gridRange.yBeginIndex; j <= gridRange.yEndIndex; j++) {
+                        rowHeight = gridRange.rowHeightList.get(j).toPixF(resolution);
+                        if (!mergeCellElementTable.get(CellPosition.value(j, i - 1)).contains(CellPosition.RIGHT)) {
+                            tmpLine2D.setLine(xAxisSumSize, yAxisSumSize, xAxisSumSize, yAxisSumSize + rowHeight);
+                            g2d.draw(tmpLine2D);
+                        }
+                        yAxisSumSize += rowHeight;
+                    }
+                }
+                if (showPaginateLine && paperXAxisSumSize - paperPaintSize > THRESHOLD) {
+                    paginateLineList.add(getPaginateLine2D((int) xAxisSumSize));
+                    paperXAxisSumSize = columnWidth;
+                }
+                xAxisSumSize += columnWidth;
+            }
+            // paint 最后一个横线..
+            if (showGridLine) {
+                drawLastLine(g2d, (int) xAxisSumSize);
+            }
         }
     }
 
@@ -482,18 +533,6 @@ public class GridUI extends ComponentUI {
             // peter:tmpRectangle2D_3只是一个临时的Rectangle2D,由于后面不少地方需要用到这个矩形
             this.cell_back_rect.setRect(0, 0, this.tmpRectangle.getWidth() - 1,
                     this.tmpRectangle.getHeight() - 1.5);
-            // peter:对于合并的单元格,需要先白色的背景来清除背景.
-            if (tmpCellElement.getColumnSpan() > 1 || tmpCellElement.getRowSpan() > 1) {
-                // REPORT-23492 要看下是否设置了纸张背景 如果设置了按照背景来画
-                ReportSettingsProvider reportSettings = getReportSettings(report);
-                Background currentBackground = reportSettings.getBackground();
-                if (currentBackground != null) {
-                    currentBackground.paint(g2d, this.cell_back_rect);
-                } else {
-                    WHITE_Backgorund.paint(g2d, this.cell_back_rect);
-                }
-                //daniel:上面这里就有问题了啊....报表的背景在这个之前画的 会覆盖报表背景....不过只是设计器中看到预览浏览没问题
-            }
             // peter:将这个元素添加到需要paint的元素列表当中去,留着画边框线..
             paintCellElementList.add(tmpCellElement);
             paintCellElementRectangleList.add(this.tmpRectangle.clone());
@@ -1093,8 +1132,7 @@ public class GridUI extends ComponentUI {
         this.paintBackground(g2d, grid, elementCase, resolution);
 
         // 画Grid Line
-        this.paintGridLine(g2d, grid, realWidth, realHeight, resolution);
+        this.paintGridLine(g2d, grid, elementCase, realWidth, realHeight, resolution);
-
         // peter:添上线程的支持,有时候,paint元素的时候,可能会有元素被删除了.
         // 需要先清除画Border需要的元素.
         paintCellElementList.clear();
@@ -1277,4 +1315,101 @@ public class GridUI extends ComponentUI {
             paginateLineList.add(new Line2D.Double(0, sumHeight, width, sumHeight));
         }
     }
+
+    /**
+     * 描述单元格位置的POJO
+     */
+    private static class CellPosition {
+        public final static int TOP = 0;
+        public static final int LEFT = 1;
+        public final static int BOTTOM = 2;
+        public static final int RIGHT = 4;
+        public int x;
+        public int y;
+
+        public CellPosition(int x, int y) {
+            this.x = x;
+            this.y = y;
+        }
+
+        public static CellPosition value(int x, int y) {
+            return new CellPosition(x, y);
+        }
+
+        @Override
+        public boolean equals(Object o) {
+            if (this == o) {
+                return true;
+            }
+            if (o == null || getClass() != o.getClass()) {
+                return false;
+            }
+            CellPosition that = (CellPosition) o;
+            return x == that.x && y == that.y;
+        }
+
+        @Override
+        public int hashCode() {
+            return Objects.hash(x, y);
+        }
+    }
+
+    /**
+     * 描述表格范围的POJO
+     * x轴为水平方向，对应的宽度表为列宽列表
+     * y轴为垂直方向，对应的宽度表为行高列表
+     */
+    private static class GridRange {
+
+        public int xBeginIndex;
+        public int xEndIndex;
+        public int yBeginIndex;
+        public int yEndIndex;
+        double realWidth;
+        double realHeight;
+        /**
+         * 行高列表，对应y方向线段
+         */
+        public DynamicUnitList rowHeightList;
+
+        /**
+         * 列宽列表，对应x方向线段
+         */
+        public DynamicUnitList columnWidthList;
+
+        public GridRange(int xBeginIndex, int xEndIndex, int yBeginIndex, int yEndIndex) {
+            this.xBeginIndex = xBeginIndex;
+            this.xEndIndex = xEndIndex;
+            this.yBeginIndex = yBeginIndex;
+            this.yEndIndex = yEndIndex;
+        }
+
+        /**
+         * 设置行高列宽列表
+         *
+         * @param rowHeightList   行高列表
+         * @param columnWidthList 列宽列表
+         */
+        public GridRange rangeList(DynamicUnitList rowHeightList, DynamicUnitList columnWidthList) {
+            this.rowHeightList = rowHeightList;
+            this.columnWidthList = columnWidthList;
+            return this;
+        }
+
+        /**
+         * 设置表格真实宽高
+         *
+         * @param realWidth  宽度
+         * @param realHeight 高度
+         */
+        public GridRange realSize(double realWidth, double realHeight) {
+            this.realWidth = realWidth;
+            this.realHeight = realHeight;
+            return this;
+        }
+
+        public static GridRange range(int xBeginIndex, int xEndIndex, int yBeginIndex, int yEndIndex) {
+            return new GridRange(xBeginIndex, xEndIndex, yBeginIndex, yEndIndex);
+        }
+    }
 }