/// <summary>
/// 画像読み込み
/// </summary>
/// <param name="filename"></param>
/// <returns></returns>
private Bitmap createBitmapFromFile(string filename)
{
using (System.IO.FileStream fs = new System.IO.FileStream(
filename,
System.IO.FileMode.Open,
System.IO.FileAccess.Read))
{
try
{
return(new Bitmap(Image.FromStream(fs)));
}
catch (Exception)
{
return(PNM.FromFile(filename));
}
}
}
/// <summary>
/// パラメータの初期化
/// </summary>
private void reloadPictureBox(string filename)
{
Bitmap bitmap = createBitmapFromFile(filename);
if (bitmap == null)
{
string errorMessage = string.Empty;
switch (PNM.GetLastError())
{
case PNM.ConvertResult.InvalidFormat:
errorMessage = "無効なフォーマットです.";
break;
case PNM.ConvertResult.Over70CharsPerLine:
errorMessage = "1 行が 70 文字を超えています.";
break;
case PNM.ConvertResult.NotSupportedFormat:
errorMessage = "未対応のフォーマットです.";
break;
default:
return;
}
MessageBox.Show(errorMessage, Text, MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
if (_bitmap != null)
{
_bitmap.Dispose();
_bitmap = null;
}
_bitmap = bitmap;
pictureBoxMain.Image = bitmap;
fitFormSize();
toolStripMenuItemSave.Enabled = true;
}
