Merge pull request #48 in DESIGN/design from ~PLOUGH/10-design:feature/10.0 to feature/10.0

* commit '6cf9cd404f88f0131699355be2b4ca915b469c9c':
  REPORT-7222 安全性之水印=>支持公式
  REPORT-7222 安全性之水印=>调整代码

designer-base/src/com/fr/design/report/WatermarkPreviewPane.java

@@ -2,29 +2,18 @@ package com.fr.design.report;
 
 import com.fr.base.iofileattr.WatermarkAttr;
 import com.fr.design.constants.UIConstants;
-import com.fr.general.FRFont;
+import com.fr.page.WatermarkPainter;
 
 import javax.swing.JPanel;
-import java.awt.FontMetrics;
 import java.awt.Graphics;
 import java.awt.Graphics2D;
-import java.awt.image.BufferedImage;
 
 /**
  * Created by plough on 2018/5/15.
  */
 public class WatermarkPreviewPane extends JPanel {
-    private static final double SCALE_FACTOR = 3;  // 水印层的放大比例
-    private static final int ROTATE_DEGREE = -20;  // 旋转角度
-    // 绘制水印层的坐标，用来控制图层偏移
-    private static final int MARK_X = 0;
-    private static final int MARK_Y = -120;
-
-    private int horizontalGap = 20;  // 水平间隔（一个中文字符宽度）
-    private int verticalGap = 40;  // 垂直间隔（两个中文字符宽度）
     private WatermarkAttr watermark;
 
-
     public WatermarkPreviewPane() {
         this.watermark = new WatermarkAttr();
         repaint();
@@ -38,44 +27,11 @@ public class WatermarkPreviewPane extends JPanel {
         super.repaint();
     }
 
-    private void updateGap(FontMetrics fontMetrics) {
-        horizontalGap = fontMetrics.stringWidth("帆");  // 任意一个中文字符
-        verticalGap = horizontalGap * 2;
-    }
-
-    private int getLineHeight() {
-        return horizontalGap;
-    }
-
-    private BufferedImage paintWatermark() {
-        int width = (int)(this.getWidth() * SCALE_FACTOR);
-        int height = (int)(this.getHeight() * SCALE_FACTOR);
-        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
-        Graphics g = image.getGraphics();
-        g.setColor(watermark.getColor());
-        g.setFont(FRFont.getInstance().applySize(watermark.getFontSize()));
-        updateGap(g.getFontMetrics());
-        for (int y = getLineHeight(); y < height; y += verticalGap) {
-            for (int x = 0; x < width; x += horizontalGap) {
-                g.drawString(watermark.getText(), x, y);
-                x += g.getFontMetrics().stringWidth(watermark.getText());
-            }
-            y += getLineHeight();
-        }
-        return image;
-    }
-
     @Override
     public void paint(Graphics g) {
         super.paint(g);
         Graphics2D g2d = (Graphics2D)g;
         g2d.drawImage(UIConstants.WATERMARK_BACKGROUND, 0, 0, this.getWidth(), this.getHeight(), null);
-        BufferedImage markImage = paintWatermark();
-        g2d.rotate(
-            Math.toRadians(ROTATE_DEGREE),
-            (double) markImage.getWidth() / 2,
-            (double) markImage.getHeight() / 2
-        );
-        g.drawImage(markImage, MARK_X, MARK_Y, null);
+        WatermarkPainter.getInstance().paint(watermark, g2d, this.getWidth(), this.getHeight(), true);
     }
 }