// Hitting enter in the text box or losing mouse
// focusfrom the textbox both invoke this method.
private void PageNumberTextBox_changed()
{
int newPDPagenum = int.Parse(PageNumberTextBox.Text) - 1;
int savePDPagenum = currentPDPagenum;
try
{
if (currentPDPagenum != newPDPagenum)
{
currentPDPagenum = newPDPagenum;
PDFPagepicturebox.ClearList();
if (SearchWord != null)
{
searchwords();
}
drawcurrentPDFpage();
}
}
catch
{
currentPDPagenum = savePDPagenum;
PDFPagepicturebox.ClearList();
if (SearchWord != null)
{
searchwords();
}
drawcurrentPDFpage();
throw;
}
}
private void perform_searchform()
{
String textboxword = TextSearch.Text.ToString();
if (textboxword.Length == 0)
{
PDFPagepicturebox.ClearList();
SearchWord = null;
drawcurrentPDFpage();
return;
}
if (SearchWord != null && SearchWord != textboxword)
{
PDFPagepicturebox.ClearList();
drawcurrentPDFpage();
}
if (SearchWord == null || SearchWord != textboxword)
{
SearchWord = textboxword;
if (PDFDoc != null)
{
searchwords();
drawcurrentPDFpage();
}
}
}
private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
PDFPagepicturebox.ClearList();
TextSearch.Text = null;
OpenFileDialog dialog = new OpenFileDialog();
dialog.Filter = "PDF File (*.pdf)|*.pdf";
dialog.Title = "Select a PDF file";
DialogResult result = dialog.ShowDialog();
if (result == System.Windows.Forms.DialogResult.OK)
{
String FileName = dialog.FileName;
try
{
if (PDFDoc != null)
{
PDFDoc.Dispose();
}
PDFDoc = new Document(FileName);
DisplayPDFForm.ActiveForm.Text = "PDFL Viewer - " + FileName;
maxpages = PDFDoc.NumPages;
currentPDPagenum = 0;
scalefactor = 1.0;
documentpassword = null;
drawcurrentPDFpage();
}
catch (Exception exc)
{
MessageBox.Show("The File " + FileName + " cannot be opened. " + exc.ToString());
}
}
}
private void forwardonedocpage_Click(object sender, EventArgs e)
{
if (PDFDoc != null & (currentPDPagenum + 1) < maxpages)
{
currentPDPagenum++;
PDFPagepicturebox.ClearList();
drawcurrentPDFpage();
if (SearchWord != null)
{
searchwords();
}
}
}
private void rewindtodocstart_Click(object sender, EventArgs e)
{
if (PDFDoc != null)
{
currentPDPagenum = 0;
PDFPagepicturebox.ClearList();
drawcurrentPDFpage();
if (SearchWord != null)
{
searchwords();
}
}
}
private void forwardtodocend_Click(object sender, EventArgs e)
{
if (PDFDoc != null)
{
currentPDPagenum = maxpages - 1;
PDFPagepicturebox.ClearList();
drawcurrentPDFpage();
if (SearchWord != null)
{
searchwords();
}
}
}
private void gobackonepage_Click(object sender, EventArgs e)
{
if (PDFDoc != null & currentPDPagenum > 0)
{
currentPDPagenum -= 1;
PDFPagepicturebox.ClearList();
drawcurrentPDFpage();
if (SearchWord != null)
{
searchwords();
}
}
}
