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改进“喷鹤网星”的截屏程序

2007-09-13 17:18:50| 分类：程序编程 | 标签： |举报 |字号大中小订阅

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喷鹤网星，兄弟的截屏程序酷毙了，但是好像9月4日之后就没有继续更新了，我们来继续为他的程序改进，顺便也把我们这几天都在讲的2D绘制用进来，我们的目标是让冰封的截屏程序成为截屏程序里的王！
今天先改进一下截图时候的选框，还是先放上截图的截图（*o*）：

这是原来的图片，下面是改进后的

和改进的代码部分：

这部分代码插入 Temp类的paintComponent方法中的 if (showTip) 这句的前面

Graphics2D g2d = (Graphics2D) g.create();

g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,

RenderingHints.VALUE_ANTIALIAS_ON);

g2d.setComposite(AlphaComposite.getInstance(

AlphaComposite.SRC_OVER, 0.3F));

g2d.setColor(Color.RED.brighter().brighter());

int sX = Math.min(startX, endX);

int sY = Math.min(endY, startY);

g2d.fillRect(sX, sY, Math.abs(endX - startX), Math.abs(endY

- startY));

g2d.setComposite(AlphaComposite.getInstance(

AlphaComposite.SRC_OVER, 1F));

boolean drawCTip = endX - startX != 0 && endY - startY != 0;

if (drawCTip) {

String cTip = String.format("%dX%d", Math.abs(endX - startX),

Math.abs(endY - startY));

int cTipH = 20;

Font cTipFont = new Font("system", Font.BOLD, 16);

g2d.setFont(cTipFont);

int cTipW = SwingUtilities.computeStringWidth(

getFontMetrics(cTipFont), cTip);

g2d.setPaint(Color.BLACK);

int cStartY = sY - cTipH > 0 ? sY - cTipH : sY;

g2d.fillRect(sX, cStartY, cTipW, cTipH);

g2d.setPaint(Color.WHITE);

g2d.drawString(cTip, sX, cStartY == sY ? sY + cTipH - 3

: sY - 3);

}

g2d.dispose();

怎么样，比起QQ的截图程序，我们又近一步了，嗯。

喷鹤网 www.penhe.com ,

鸽给搜索,Pigeons to search (www.Gegei.com), Pigeon Give Search,

作者：網際飛星

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