使用Apache POI转换的PPT PNG [英] Converting ppt to png using Apache poi

问题描述

您好我想使用Apache浦二框架，一个PPT的每张幻灯片转换为单个PNG。问题在于，一些幻灯片是否变形。例如存在这样的情况的背景具有彩虹色到它的滑动。这是对一些幻灯片图像不会出现在所有的.png文件

这里是code：

 的FileInputStream是=新的FileInputStream（参数[0]）;        幻灯片PPT =新的幻灯片（是）;
        is.close（）;        尺寸PGSIZE = ppt.getPageSize（）;        幻灯片[] =滑动ppt.getSlides（）;        的for（int i = 0; I＆LT; slide.length;我++）{        IMG的BufferedImage =新的BufferedImage（pgsize.width，pgsize.height，
        BufferedImage.TYPE_INT_RGB）;
        Graphics2D的图形= img.createGraphics（）;
        //清除绘图区域
        graphics.setPaint（Color.white）;
        graphics.fill（新Rectangle2D.Float（0，0，pgsize.width，pgsize.height））;        //渲染
        滑动[I] .draw（图形）;        //保存输出
        FileOutputStream中出=新的FileOutputStream（C：\\\\ \\\\用户\\\\法扎德桌面\\\\ slide-+（I + 1）+巴纽）;
        javax.imageio.ImageIO.write（IMG，PNG，出来）;
        out.close（）;
        }
 

解决方案

对于这个工作，我们没有使用：

  graphics.setPaint（Color.white）;
 

而是使用：

  graphics.setPaint（
    slideShow.getSlides（）[0] .getBackground（）。getFill（）。getForegroundColor（）
）;
 

Hello I am trying to use the Apache Poi framework to convert each slide of a ppt to an individual png. The problem is that some slides are deformed. For instance there is a slide where the background has a rainbow color to it. And Images that are on some slides do not appear at all on the .png file

here is the code:

        FileInputStream is = new FileInputStream(args[0]);

        SlideShow ppt = new SlideShow(is);


        is.close();

        Dimension pgsize = ppt.getPageSize();

        Slide[] slide = ppt.getSlides();

        for (int i = 0; i < slide.length; i++) {

        BufferedImage img = new BufferedImage(pgsize.width, pgsize.height,
        BufferedImage.TYPE_INT_RGB);
        Graphics2D graphics = img.createGraphics();
        //clear the drawing area
        graphics.setPaint(Color.white);
        graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));

        //render
        slide[i].draw(graphics);

        //save the output
        FileOutputStream out = new FileOutputStream("C:\\Users\\Farzad\\Desktop\\slide-" + (i+1) + ".png");
        javax.imageio.ImageIO.write(img, "png", out);
        out.close();
        }

解决方案

For this to work we don't have to use:

graphics.setPaint(Color.white);

Instead use :

graphics.setPaint(
    slideShow.getSlides()[0].getBackground().getFill().getForegroundColor()
);

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