Add more validation for the barcode parameters

mlaily · Apr 22, 2018 · 2c1e37f · 2c1e37f
1 parent 83e1c8d
commit 2c1e37f
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/MovieBarCodeGenerator/MainForm.cs b/MovieBarCodeGenerator/MainForm.cs
@@ -252,20 +252,20 @@ void ValidateOutputPath(ref string path)
                 ValidateOutputPath(ref smoothedOutputPath);
             }
 
-            if (!int.TryParse(barWidthTextBox.Text, out var barWidth))
+            if (!int.TryParse(barWidthTextBox.Text, out var barWidth) || barWidth <= 0)
             {
                 throw new Exception("Invalid bar width.");
             }
 
-            if (!int.TryParse(imageWidthTextBox.Text, out var imageWidth))
+            if (!int.TryParse(imageWidthTextBox.Text, out var imageWidth) || imageWidth <= 0)
             {
                 throw new Exception("Invalid output width.");
             }
 
             int? imageHeight = null;
             if (!useInputHeightForOutputCheckBox.Checked)
             {
-                if (int.TryParse(imageHeightTextBox.Text, out var nonNullableImageHeight))
+                if (int.TryParse(imageHeightTextBox.Text, out var nonNullableImageHeight) && nonNullableImageHeight > 0)
                 {
                     imageHeight = nonNullableImageHeight;
                 }