private void treeView1_BeforeExpand(object sender, TreeViewCancelEventArgs e)
{
if (e.Node.Nodes[0].Text == "")
{
e.Node.Nodes[0].Remove();
List <BrowseItem> arr = fb.GetChildren((BrowseItem)e.Node.Tag);
foreach (BrowseItem it in arr)
{
if (it.Type == BrowseItemType.Container)
{
TreeNode tn = new TreeNode(it.name);
tn.Tag = it;
tn.ImageKey = it.info.Length == 0 ? "folder" : "dicomfolder";
tn.SelectedImageKey = tn.ImageKey;
tn.Nodes.Add("");
e.Node.Nodes.Add(tn);
}
}
}
if (e.Node.Tag.GetType() == typeof(BrowseItem))
{
BrowseItem it = (BrowseItem)e.Node.Tag;
e.Node.ImageKey = it.info.Length == 0 ? "openfolder" : "dicomopenfolder";
e.Node.SelectedImageKey = e.Node.ImageKey;
}
}
public BrowseItem GetRoot()
{
if (root is null)
{
root = new BrowseItem();
root.name = "Computer";
}
return(root);
}
private void treeView1_BeforeCollapse(object sender, TreeViewCancelEventArgs e)
{
if (e.Node.Tag.GetType() == typeof(BrowseItem))
{
BrowseItem it = (BrowseItem)e.Node.Tag;
e.Node.ImageKey = it.info.Length == 0 ? "folder" : "dicomfolder";
e.Node.SelectedImageKey = e.Node.ImageKey;
}
}
Bitmap GetImage(object key, Size sz)
{
if (key.GetType() != typeof(BrowseItem))
{
return(null);
}
try
{
BrowseItem it = (BrowseItem)key;
int frame = -1;
string path = "";
if (it.info.StartsWith("dicom:image"))
{
frame = 0;
path = it.info.Remove(0, "dicom:image:".Length);
}
else if (it.info.StartsWith("dicom:frame"))
{
string[] arr = it.info.Split(new char[] { ':' }, 4);
if (arr.Length == 4)
{
frame = int.Parse(arr[2]);
path = arr[3];
}
}
if (frame < 0)
{
return(null);
}
if (DicomFile.HasValidHeader(path))
{
DicomImage img = new DicomImage(path, frame);
Bitmap bmp = img.RenderImage(frame).AsBitmap();
float ratio = (float)bmp.Width / bmp.Height;
if (ratio < 1)
{
sz.Width = (int)(sz.Height * ratio);
}
else
{
sz.Height = (int)(sz.Width / ratio);
}
return((sz.Width > 0 && sz.Height > 0) ? new Bitmap(img.RenderImage(frame).AsBitmap(), sz) : new Bitmap(img.RenderImage(frame).AsBitmap()));
}
}
catch
{
}
return(null);
}
void RetrieveVirtualItemImage(object sender, VirtualItemImageEventArgs e)
{
if (e.Key.GetType() != typeof(BrowseItem))
{
return;
}
BrowseItem it = (BrowseItem)e.Key;
e.FileName = it.id;
}
void RetrieveVirtualItemDetails(object sender, VirtualItemDetailsEventArgs e)
{
if (e.Key.GetType() != typeof(BrowseItem))
{
return;
}
BrowseItem it = (BrowseItem)e.Key;
e.FileName = it.name;
}
private void FileBrowser_Load(object sender, EventArgs e)
{
BrowseItem it = fb.GetRoot();
TreeNode tn = new TreeNode(it.name);
tn.Tag = it;
tn.ImageKey = it.info.Length == 0 ? "folder" : "dicomfolder";
tn.SelectedImageKey = tn.ImageKey;
tn.Nodes.Add("");
treeView1.Nodes.Add(tn);
tn.Expand();
OpenPath(lastPath);
}
public BrowseItem GetParent(BrowseItem item)
{
return(item.Parent);
}
public BrowseItem(BrowseItem p = null, BrowseItemType t = BrowseItemType.Container)
{
parent = p;
type = t;
}
