/*
* Open the dialog box to let user chose a picture
*/
public Bitmap LoadImageFromDisk(IInterfaceInOut input, PictureBox pictureBoxForImageLoaded)
{
this.pictureBoxForImageLoaded = pictureBoxForImageLoaded;
OpenFileDialog filedialog = new OpenFileDialog
{
Title = input.GetDialogTitle(),
Filter = input.GetDialogFilter()
};
// check if valid input
if (filedialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
// import image
StreamReader streamReader = new StreamReader(filedialog.FileName);
originalImageFromFile = (Bitmap)Image.FromStream(streamReader.BaseStream);
streamReader.Close();
LoadImageFromFile();
}
else
{
throw new Exception("User cancelled image selection dialog.");
}
return(loadedImage);
}
/*
* Open the dialog box to let user save the picture
*/
public void SaveImageToDisk(Image loadedImage, IInterfaceInOut output)
{
SaveFileDialog filedialog = new SaveFileDialog
{
Title = output.GetDialogTitle(),
Filter = output.GetDialogFilter()
};
// check if valid input
if (filedialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
// select right extension
String fileExtension = Path.GetExtension(filedialog.FileName).ToUpper();
ImageFormat imgFormat;
switch (fileExtension)
{
case "BMP":
imgFormat = ImageFormat.Bmp;
break;
case "JPG":
imgFormat = ImageFormat.Jpeg;
break;
case "PNG":
default:
imgFormat = ImageFormat.Png;
break;
}
// export image
StreamWriter streamWriter = new StreamWriter(filedialog.FileName, false);
loadedImage.Save(streamWriter.BaseStream, imgFormat);
streamWriter.Flush();
streamWriter.Close();
}
}