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添加给图片添加全屏图片水印的方法
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imashimaro
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@ -606,6 +606,50 @@ public class Img implements Serializable {
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return this;
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}
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/**
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* 给图片添加全屏图片水印
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*
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* @param pressImage 水印图片
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* @param lineHeight 行高
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* @param degree 旋转角度，（单位：弧度），以圆点（0,0）为圆心，正代表顺时针，负代表逆时针
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* @param alpha 透明度：alpha 必须是范围 [0.0, 1.0] 之内（包含边界值）的一个浮点数字
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* @author imashimaro
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* @return this
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*/
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public Img pressImageFull(final Image pressImage, final int lineHeight, final int degree, final float alpha) {
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final BufferedImage targetImage = ImgUtil.toBufferedImage(getValidSrcImg(), this.targetImageType);
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final int targetHeight = targetImage.getHeight();
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final int targetWidth = targetImage.getWidth();
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// 创建画笔，并设置透明度和角度
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final Graphics2D g = targetImage.createGraphics();
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// 基于图片中心旋转
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g.rotate(Math.toRadians(degree), targetWidth >> 1, targetHeight >> 1);
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g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, alpha));
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//获取水印图片本身的长宽
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int pressImageWidth = pressImage.getWidth(null);
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int pressImageHeight = pressImage.getHeight(null);
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Dimension dimension = new Dimension(pressImageWidth, pressImageHeight);
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final int intervalHeight = dimension.height * lineHeight;
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// 在画笔按照画布中心旋转后，达到45度时，上下左右会出现空白区，此处各延申长款的1.5倍实现全覆盖
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int y = -targetHeight >> 1 ;
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while (y < targetHeight * 1.5) {
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int x = -targetWidth >> 1;
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while (x < targetWidth * 1.5) {
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GraphicsUtil.drawImg(g, pressImage, new Point(x, y));
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x += dimension.width;
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}
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y += intervalHeight;
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}
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g.dispose();
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this.targetImage = targetImage;
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return this;
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}
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/**
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* 旋转图片为指定角度<br>
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* 来自：<a href="http://blog.51cto.com/cping1982/130066">http://blog.51cto.com/cping1982/130066</a>
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@ -844,6 +844,77 @@ public class ImgUtil {
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return Img.from(srcImage).pressText(pressText, color, font, x, y, alpha).getImg();
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}
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/**
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* 给图片添加全屏文字水印<br>
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*
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* @param imageFile 源图像文件
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* @param destFile 目标图像文件
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* @param pressText 水印文字
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* @param color 水印的字体颜色
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* @param font {@link Font} 字体相关信息，如果默认则为{@code null}
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* @param lineHeight 行高
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* @param degree 水印文字旋转角度
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* @param alpha 透明度：alpha 必须是范围 [0.0, 1.0] 之内（包含边界值）的一个浮点数字
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* @throws IORuntimeException IO异常
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*/
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public static void pressTextFull(final File imageFile, final File destFile, final String pressText, final Color color, final Font font, final int lineHeight, final int degree, final float alpha) throws IORuntimeException {
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pressTextFull(read(imageFile), destFile, pressText, color, font, lineHeight, degree, alpha);
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}
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/**
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* 给图片添加全屏文字水印<br>
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* 此方法并不关闭流
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*
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* @param srcStream 源图像流
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* @param destStream 目标图像流
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* @param pressText 水印文字
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* @param color 水印的字体颜色
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* @param font {@link Font} 字体相关信息，如果默认则为{@code null}
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* @param lineHeight 行高
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* @param degree 水印文字旋转角度
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* @param alpha 透明度：alpha 必须是范围 [0.0, 1.0] 之内（包含边界值）的一个浮点数字
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* @throws IORuntimeException IO异常
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*/
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public static void pressTextFull(final InputStream srcStream, final OutputStream destStream, final String pressText, final Color color, final Font font, final int lineHeight, final int degree, final float alpha) throws IORuntimeException {
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writeJpg(pressTextFull(read(srcStream), pressText, color, font, lineHeight, degree, alpha), destStream);
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}
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/**
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* 给图片添加全屏文字水印<br>
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* 此方法并不关闭流
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* @param srcImage 源图像
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* @param destFile 目标图像文件
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* @param pressText 水印文字
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* @param color 水印的字体颜色
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* @param font {@link Font} 字体相关信息，如果默认则为{@code null}
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* @param lineHeight 行高
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* @param degree 水印文字旋转角度
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* @param alpha 透明度：alpha 必须是范围 [0.0, 1.0] 之内（包含边界值）的一个浮点数字
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* @throws IORuntimeException IO异常
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*/
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public static void pressTextFull(final Image srcImage, final File destFile, final String pressText, final Color color, final Font font, final int lineHeight, final int degree, final float alpha) throws IORuntimeException {
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write(pressTextFull(srcImage, pressText, color, font, lineHeight, degree, alpha), destFile);
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}
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/**
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* 给图片添加全屏文字水印<br>
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* 此方法并不关闭流
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* @param srcImage 源图像
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* @param pressText 水印文字
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* @param color 水印的字体颜色
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* @param font {@link Font} 字体相关信息，如果默认则为{@code null}
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* @param lineHeight 行高
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* @param degree 旋转角度，（单位：弧度），以圆点（0,0）为圆心，正代表顺时针，负代表逆时针
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* @param alpha 透明度：alpha 必须是范围 [0.0, 1.0] 之内（包含边界值）的一个浮点数字
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* @return 处理后的图像
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*/
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public static Image pressTextFull(final Image srcImage, final String pressText, final Color color, final Font font, final int lineHeight, final int degree, final float alpha) {
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return Img.from(srcImage).pressTextFull(pressText, color, font, lineHeight, degree, alpha).getImg();
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}
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/**
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* 给图片添加图片水印
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*
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@ -968,6 +1039,56 @@ public class ImgUtil {
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public static Image pressImage(final Image srcImage, final Image pressImg, final Rectangle rectangle, final float alpha) {
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return Img.from(srcImage).pressImage(pressImg, rectangle, alpha).getImg();
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}
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/**
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* 给图片添加全屏图片水印<br>
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*
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* @param imageFile 源图像文件
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* @param destFile 目标图像文件
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* @param pressImageFile 水印图像文件
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* @param lineHeight 行高
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* @param degree 水印图像旋转角度，（单位：弧度），以圆点（0,0）为圆心，正代表顺时针，负代表逆时针
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* @param alpha 透明度：alpha 必须是范围 [0.0, 1.0] 之内（包含边界值）的一个浮点数字
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* @throws IORuntimeException IO异常
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*/
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public static void pressImageFull(final File imageFile, final File destFile, final File pressImageFile, final int lineHeight, final int degree, final float alpha) throws IORuntimeException {
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write(pressImageFull(read(imageFile), read(pressImageFile), lineHeight, degree, alpha), destFile);
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}
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/**
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* 给图片添加全屏图像水印<br>
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* 此方法并不关闭流
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*
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* @param srcStream 源图像流
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* @param destStream 目标图像流
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* @param pressStream 水印图像流
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* @param lineHeight 行高
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* @param degree 水印图像旋转角度，（单位：弧度），以圆点（0,0）为圆心，正代表顺时针，负代表逆时针
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* @param alpha 透明度：alpha 必须是范围 [0.0, 1.0] 之内（包含边界值）的一个浮点数字
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* @throws IORuntimeException IO异常
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*/
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public static void pressImageFull(final InputStream srcStream, final OutputStream destStream, final InputStream pressStream, final int lineHeight, final int degree, final float alpha) throws IORuntimeException {
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writeJpg(pressImageFull(read(srcStream), read(pressStream), lineHeight, degree, alpha), destStream);
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}
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/**
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* 给图片添加全屏图像水印<br>
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* 此方法并不关闭流
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* @param srcImage 源图像
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* @param pressImage 水印图像
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* @param lineHeight 行高
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* @param degree 水印图像旋转角度，（单位：弧度），以圆点（0,0）为圆心，正代表顺时针，负代表逆时针，（单位：弧度），以圆点（0,0）为圆心，正代表顺时针，负代表逆时针
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* @param alpha 透明度：alpha 必须是范围 [0.0, 1.0] 之内（包含边界值）的一个浮点数字
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* @return 处理后的图像
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*/
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public static Image pressImageFull(final Image srcImage, final Image pressImage, final int lineHeight, final int degree, final float alpha) {
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return Img.from(srcImage).pressImageFull(pressImage, lineHeight, degree, alpha).getImg();
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}
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// endregion
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// region ----- rotate
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@ -102,6 +102,18 @@ public class ImgUtilTest {
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1f);
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}
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@Test
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@Disabled
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public void pressImageFullScreenTest() {
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ImgUtil.pressImageFull(new File("/Users/imashimaro/Downloads/Background.png"),
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new File("/Users/imashimaro/Downloads/Background_logo.png"),
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new File("/Users/imashimaro/Downloads/logo.png"),
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2,
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30,
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0.5F);
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}
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@Test
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@Disabled
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public void sliceByRowsAndColsTest() {
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