Example #1
0
        public static Image Zoom(Image source, int width, int height, bool isDeformation)
        {
            Image result;

            if (isDeformation)
            {
                result = ImageTo.Zoom(source, width, height);
            }
            else
            {
                double num  = (double)width / (double)source.Width;
                double num2 = (double)height / (double)source.Height;
                double num3 = (num > num2) ? num : num2;
                int    num4 = Convert.ToInt32((double)source.Width * num3);
                int    num5 = Convert.ToInt32((double)source.Height * num3);
                num4 = ((num4 >= source.Width) ? source.Width : num4);
                num5 = ((num5 >= source.Height) ? source.Height : num5);
                Bitmap   bitmap   = new Bitmap(width, height);
                Graphics graphics = Graphics.FromImage(bitmap);
                graphics.Clear(Color.White);
                graphics.DrawImage(source, (width - num4) / 2, (height - num5) / 2, num4, num5);
                graphics.Dispose();
                result = bitmap;
            }
            return(result);
        }
Example #2
0
        public static Image Thumbnail(Image source, int percent)
        {
            int width  = source.Width * percent / 100;
            int height = source.Height * percent / 100;

            return(ImageTo.Thumbnail(source, width, height));
        }
Example #3
0
        public static Image Overlay(Image source, Image img, string overType, int opacity)
        {
            string text = overType.ToLower();
            int    x;
            int    y;

            switch (text)
            {
            case "left":
                x = 0;
                y = (source.Height - img.Height) / 2;
                goto IL_1B6;

            case "right":
                x = source.Width - img.Width;
                y = (source.Height - img.Height) / 2;
                goto IL_1B6;

            case "top":
                x = (source.Width - img.Width) / 2;
                y = 0;
                goto IL_1B6;

            case "down":
                x = (source.Width - img.Width) / 2;
                y = source.Height - img.Height;
                goto IL_1B6;

            case "lefttop":
                x = 0;
                y = 0;
                goto IL_1B6;

            case "leftdown":
                x = 0;
                y = source.Height - img.Height;
                goto IL_1B6;

            case "righttop":
                x = source.Width - img.Width;
                y = 0;
                goto IL_1B6;

            case "rightdown":
                x = source.Width - img.Width;
                y = source.Height - img.Height;
                goto IL_1B6;
            }
            x = (source.Width - img.Width) / 2;
            y = (source.Height - img.Height) / 2;
IL_1B6:
            return(ImageTo.Overlay(source, img, x, y, opacity));
        }
Example #4
0
        public static Image Thumbnail(Image source, int width, int height)
        {
            int    num  = source.Width;
            int    num2 = source.Height;
            double num3 = (double)width / (double)source.Width;
            double num4 = (double)height / (double)source.Height;
            double num5 = (num3 > num4) ? num3 : num4;

            num  = Convert.ToInt32((double)source.Width * num5);
            num2 = Convert.ToInt32((double)source.Height * num5);
            num  = ((num >= source.Width) ? source.Width : num);
            num2 = ((num2 >= source.Height) ? source.Height : num2);
            Bitmap   bitmap   = new Bitmap(num, num2);
            Graphics graphics = Graphics.FromImage(bitmap);

            graphics.InterpolationMode = InterpolationMode.High;
            graphics.SmoothingMode     = SmoothingMode.HighQuality;
            graphics.DrawImage(source, 0, 0, num, num2);
            graphics.Dispose();
            return(ImageTo.Cute(bitmap, (bitmap.Width - width) / 2, (bitmap.Height - height) / 2, width, height));
        }
Example #5
0
        public static Image Overlay(Image source, string text, string overType, int opacity, int size, string font, string color)
        {
            Image img = ImageTo.FromString(text, size, font, color);

            return(ImageTo.Overlay(source, img, overType, opacity));
        }
Example #6
0
        public static Image Overlay(Image source, string text, string overType, int opacity)
        {
            Image img = ImageTo.FromString(text, 12, "宋体", "#ff0000");

            return(ImageTo.Overlay(source, img, overType, opacity));
        }
Example #7
0
 public static Image Overlay(Image source, Image img, int x, int y, int opacity)
 {
     img = ImageTo.Transparent(img, opacity);
     return(ImageTo.Overlay(source, img, x, y));
 }