是否有任何java库可用于从真实类型字体(.ttf)中提取每个字符?
字体的每个字符,我想:
有人可以帮我向我展示一些关于上述目的的提示吗?
P.S:我想弄明白,这个应用程序是如何制作的:http://www.softpedia.com/progScreenshots/CharMap-Screenshot-94863.html
这会将String
转换为BufferedImage
:
public BufferedImage stringToBufferedImage(String s) {
//First, we have to calculate the string's width and height
BufferedImage img = new BufferedImage(1, 1, BufferedImage.TYPE_4BYTE_ABGR);
Graphics g = img.getGraphics();
//Set the font to be used when drawing the string
Font f = new Font("Tahoma", Font.PLAIN, 48);
g.setFont(f);
//Get the string visual bounds
FontRenderContext frc = g.getFontMetrics().getFontRenderContext();
Rectangle2D rect = f.getStringBounds(s, frc);
//Release resources
g.dispose();
//Then, we have to draw the string on the final image
//Create a new image where to print the character
img = new BufferedImage((int) Math.ceil(rect.getWidth()), (int) Math.ceil(rect.getHeight()), BufferedImage.TYPE_4BYTE_ABGR);
g = img.getGraphics();
g.setColor(Color.black); //Otherwise the text would be white
g.setFont(f);
//Calculate x and y for that string
FontMetrics fm = g.getFontMetrics();
int x = 0;
int y = fm.getAscent(); //getAscent() = baseline
g.drawString(s, x, y);
//Release resources
g.dispose();
//Return the image
return img;
}
我认为没有办法获得所有角色,你必须创建一个String
或char
数组,你存储你想要转换为图像的所有字符。
一旦你有String
或char[]
与你想要转换的所有键,你可以轻松地迭代它并转换调用stringToBufferedImage
方法,然后你可以做
int charCode = (int) charactersMap.charAt(counter);
如果charactersMap
是String
,或者
int charCode = (int) charactersMap[counter];
如果charactersMap
是char
阵列
希望这可以帮助