public string ChooseSrcFileName()
{
string ret = null;
IFileSourceFilter fsrc = basefilter as IFileSourceFilter;
if (fsrc != null)
{
using (var fd = new OpenFileDialog())
{
fd.DefaultExt = "*.*";
if (fd.ShowDialog() == DialogResult.OK)
{
try
{
int hr = fsrc.Load(fd.FileName, null);
DsError.ThrowExceptionForHR(hr);
ret = fd.FileName;
}
catch (COMException e)
{
Graph.ShowCOMException(e, "Can't load file " + fd.FileName);
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Exception caught while loading file " + fd.FileName);
}
}
else
if (Program.mainform.suggestURLs)
{
using (var rf = new RenderURLForm("Open URL"))
{
rf.ShowDialog();
if (rf.selectedURL != null)
{
try
{
int hr = fsrc.Load(rf.selectedURL, null);
DsError.ThrowExceptionForHR(hr);
ret = rf.selectedURL;
}
catch (COMException e)
{
Graph.ShowCOMException(e, "Can't open " + rf.selectedURL);
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Exception caught while loading URL " + rf.selectedURL);
}
}
} //using
}
}//using
}
return(ret);
}
public string ChooseDstFileName()
{
string ret = null;
IFileSinkFilter fdst = basefilter as IFileSinkFilter;
if (fdst != null)
{
using (var fd = new SaveFileDialog())
{
if (fd.ShowDialog() == DialogResult.OK)
{
try
{
int hr = fdst.SetFileName(fd.FileName, null);
DsError.ThrowExceptionForHR(hr);
ret = fd.FileName;
}
catch (COMException e)
{
Graph.ShowCOMException(e, "Can't create file " + fd.FileName);
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Exception caught while setting output file name " + fd.FileName);
}
}
else
if (Program.mainform.suggestURLs)
{
using (var rf = new RenderURLForm("Open URL"))
{
rf.ShowDialog();
if (rf.selectedURL != null)
{
try
{
int hr = fdst.SetFileName(rf.selectedURL, null);
DsError.ThrowExceptionForHR(hr);
ret = rf.selectedURL;
}
catch (COMException e)
{
Graph.ShowCOMException(e, "Can't set " + rf.selectedURL);
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Exception caught while setting URL " + rf.selectedURL);
}
}
} //using rf
}
}//using fd
}
return(ret);
}
private void OnRenderURL(object sender, EventArgs e)
{
using (var rf = new RenderURLForm("Render URL"))
{
rf.ShowDialog();
if (rf.selectedURL != null)
{
if (activeGraphForm == null)
{
OnNewGraph(sender, e);
}
if (activeGraphForm != null)
{
activeGraphForm.RenderURL(rf.selectedURL);
}
}
}
}
