internal void DisplaySplitsMatchingThis(string currentTargetFolder, string matchToThis)
{
ClearPreviousContext();
_matchToThis = matchToThis;
outPutExtType = Path.GetExtension(matchToThis);
string qtyImg = NumberOfImagesThisCut(currentTargetFolder, matchToThis).ToString();
this.Text = "Collecting " + qtyImg + " Thumbnails For => " + matchToThis;
this.TopMost = true;
bkwImageSplits thisArg = new bkwImageSplits();
thisArg.currentTargetFolder = currentTargetFolder;
thisArg.matchToThis = matchToThis;
if (!backgroundWorkerGetSplits.IsBusy)
{
backgroundWorkerGetSplits.RunWorkerAsync(thisArg);
}
}
private void backgroundWorkerGetSplits_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
bkwImageSplits theResult = e.Result as bkwImageSplits;
ImageList cutsImages = theResult.cutsImages;
ClearPreviousContext();
int baseSF = 256;
double ASPR = theResult.ASPR;
if (ASPR > 0)
{ // portrait
cutsImages.ImageSize = new Size((int)((double)baseSF * ASPR), baseSF);
}
else
{ // landscape
cutsImages.ImageSize = new Size(baseSF, (int)((double)baseSF * (-ASPR)));
}
listViewCuts.LargeImageList = cutsImages;
for (int j = 0; j < cutsImages.Images.Count; j++)
{
string[] arr = new String[1];
arr[0] = cutsImages.Images.Keys[j];
ListViewItem item = new ListViewItem(arr);
item.ImageIndex = j;
listViewCuts.Items.Add(item);
}
UpdateTitleForListContent(theResult.matchToThis);
listViewCuts.Items[0].Focused = true;
listViewCuts.ResumeLayout();
listViewCuts.Items[0].Selected = true;
Activate(); // Make form active if had been called so that esc key can dismiss.
}
private void backgroundWorkerGetSplits_DoWork(object sender, DoWorkEventArgs e)
{
bkwImageSplits thisArg = e.Argument as bkwImageSplits;
ImageList cutsImages = new ImageList();
double ASPR = 1.0;
string[] targetCuts = null;
listViewCuts.SuspendLayout();
targetCuts = Directory.GetFiles(thisArg.currentTargetFolder, thisArg.matchToThis);
if (targetCuts.Length > 0)
{
foreach (string fPName in targetCuts)
{
try
{
//MessageBox.Show(fPName);
// Trying not to keep the file open. Passing the process through the GetThumbnailImage method
// creates a copy of the image without a file pointer back to the file. That way the file is not
// kept open and can be deleted.
Image cutI = Image.FromFile(fPName);
int thumbHt;
int thumbWd;
if (cutI.Width <= cutI.Height)
{
// will control for height normalized to 256, width being a fraction of height
// will automatically be less than 256
ASPR = (double)cutI.Width / (double)cutI.Height;
thumbHt = 256;
thumbWd = (int)(256 * ASPR);
}
else
{
// will control for width normalized to 256, height being a fraction of width
// will automatically be less than 256
// ASPR being negative wil be used to signal landscape later on
ASPR = -(double)cutI.Height / (double)cutI.Width;
thumbWd = 256;
thumbHt = (int)(256 * (-ASPR));
}
// format is GetThumbnailImage(thumbWidth,thumbHeight)
Image imgThumb = cutI.GetThumbnailImage(thumbWd, thumbHt, null, new IntPtr());
cutsImages.Images.Add(Path.GetFileNameWithoutExtension(fPName), imgThumb);
cutI.Dispose();
// This here is another way, maybe better.
// FileStream fs;
// fs = new System.IO.FileStream(fPName, FileMode.Open, FileAccess.Read);
// Image imgThumb = System.Drawing.Image.FromStream(fs);
// cutsImages.Images.Add(Path.GetFileNameWithoutExtension(fPName), imgThumb);
// fs.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
}
bkwImageSplits returnArgs = new bkwImageSplits();
returnArgs.cutsImages = cutsImages;
returnArgs.currentTargetFolder = thisArg.currentTargetFolder;
returnArgs.matchToThis = thisArg.matchToThis;
returnArgs.ASPR = ASPR; // The last image APSR is what will be passed on. Note that neg. means landscape
e.Result = returnArgs;
}