Adjust qrcode display

2016-12-13 20:43:51 +11:00
parent 2a0dd88525
commit a447feece2
1 changed files with 8 additions and 0 deletions
@@ -33,6 +33,14 @@ namespace Shadowsocks.View
            QRCode code = ZXing.QrCode.Internal.Encoder.encode(qrText, ErrorCorrectionLevel.M);
            ByteMatrix m = code.Matrix;
            int blockSize = Math.Max(pictureBox1.Height/m.Height, 1);
+
+            var qrWidth = m.Width*blockSize;
+            var qrHeight = m.Height*blockSize;
+            var dWidth = pictureBox1.Width - qrWidth;
+            var dHeight = pictureBox1.Height - qrHeight;
+            var maxD = Math.Max(dWidth, dHeight);
+            pictureBox1.SizeMode = maxD >= 7*blockSize ? PictureBoxSizeMode.Zoom : PictureBoxSizeMode.CenterImage;
+
            Bitmap drawArea = new Bitmap((m.Width*blockSize), (m.Height*blockSize));
            using (Graphics g = Graphics.FromImage(drawArea))
            {