private void workService()
{
try
{
foreach (Control control in this.Controls) control.Enabled = false;
progressBar.Enabled = true;
this.Cursor = Cursors.WaitCursor;
string url = txtApiUrl.Text.Trim();
string imagesPath = txtImagesPath.Text.Trim();
string[] imageFiles = Directory.GetFiles(imagesPath, "*.jpg", SearchOption.AllDirectories);
if (imageFiles.Length == 0)
{
MessageBox.Show("图片目录中没有找到JPG图片", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
int fileIndex = 1;
Random random = new Random();
progressBar.Value = 0;
progressBar.Minimum = 0;
progressBar.Maximum = txtContents.Lines.Length;
foreach (string line in txtContents.Lines)
{
progressBar.Value += 1;
string contents = line.Trim();
if (contents == "") continue;
//cliD 是 string 二维码动态内容
string cliT = txtQRSTyle.Text.Trim();
string cliD = HttpUtility.UrlEncode(contents);
string key = txtApiKey.Text.Trim();
string parameters = $"api_key={key}&cliD={cliD}&cliT={cliT}&return_file=base64";
string base64 = HttpHelper.GetHtmlSource(url + "?" + parameters);
// 将Base64字符串转换为字节数组
base64 = base64.Replace("data:image/png;base64,", "");
byte[] imageBytes = Convert.FromBase64String(base64);
string qr_fn = Path.Combine(Application.StartupPath, "qr.png");
// 使用MemoryStream将字节数组转换为Image对象
using (MemoryStream ms = new MemoryStream(imageBytes, 0, imageBytes.Length))
{
ms.Write(imageBytes, 0, imageBytes.Length);
Image image = Image.FromStream(ms, true);
image.Save(qr_fn, System.Drawing.Imaging.ImageFormat.Png);
}
string girlImageFn = imageFiles[random.Next(0, imageFiles.Length)];
string backgroud_imgfn = Path.Combine(Application.StartupPath, "Backgroud.png");
string makeFriends_imgfn = Path.Combine(Application.StartupPath, "MakeFriends.png");
using (Bitmap backgroundImage = (Bitmap)Image.FromFile(backgroud_imgfn))
{
// ZoomPicture(girl_fn, backgroundImage.Width - 283, backgroundImage.Height);
// 加载要画上去的小图
using (Image qrImg = Image.FromFile(qr_fn))
{
using (Image makeFrendsImg = Image.FromFile(makeFriends_imgfn))
{
using (Image girlImg = Image.FromFile(girlImageFn))
{
// 在背景图上绘制小图
using (Graphics graphics = Graphics.FromImage(backgroundImage))
{
// 设置高质量插值法以保持图像质量
graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
graphics.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
graphics.DrawImage(qrImg,
new RectangleF(0, 285, 289, 285),
new RectangleF(0, 0, qrImg.Width, qrImg.Height),
GraphicsUnit.Pixel);
graphics.DrawImage(girlImg,
new RectangleF(283, 0, backgroundImage.Width - 283, backgroundImage.Height)
);
graphics.DrawImage(makeFrendsImg,
new PointF(
288 + ((288 - makeFrendsImg.Width) / 2),
285.5f + (285 - makeFrendsImg.Height) / 2));
}
}
}
string saveFn = Path.Combine(txtSavePath.Text.Trim(), fileIndex++ + ".Png");
ImageCodecInfo jgpEncoder = GetEncoder(ImageFormat.Png);
System.Drawing.Imaging.Encoder myEncoder = System.Drawing.Imaging.Encoder.Quality;
// 保存合成后的图片为JPG格式，并设置高质量的压缩级别
// 创建一个EncoderParameters对象.
// 一个EncoderParameters对象有一个EncoderParameter数组对象
EncoderParameters encoderParams = new EncoderParameters(1);
EncoderParameter myEncoderParameter = new EncoderParameter(myEncoder, 100L);//设置为100时，比原图大了几KB。
encoderParams.Param[0] = myEncoderParameter;
backgroundImage.Save(saveFn, jgpEncoder, encoderParams);
}
}
}
MessageBox.Show("操作完成", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch (ThreadAbortException) { }
catch (Exception ex)
{
MessageBox.Show(ex.Message, "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
finally
{
foreach (Control control in this.Controls) control.Enabled = true;
this.Cursor = Cursors.Default;
}
}
private ImageCodecInfo GetEncoder(ImageFormat format)
{
ImageCodecInfo[] codecs = ImageCodecInfo.GetImageDecoders();
foreach (ImageCodecInfo codec in codecs)
{
if (codec.FormatID == format.Guid)
{
return codec;
}
}
return null;
}