internal PDFSearchResult SetCurrentSearchPosition(PDFSearchResult previous_search_result_placeholder)
{
PDFRendererControl pdf_renderer_control = GetPDFRendererControl();
if (pdf_renderer_control != null)
{
foreach (PDFTextItem pdf_text_item in Children.OfType <PDFTextItem>())
{
ASSERT.Test(pdf_text_item != null);
PDFSearchResult search_result_placeholder = pdf_text_item.Tag as PDFSearchResult;
// If there was no previous search location, we use the first we find
// If the last text item was the match position, use this next one
if (previous_search_result_placeholder == search_result_placeholder)
{
pdf_renderer_control.SelectPage(page);
pdf_text_item.BringIntoView();
pdf_text_item.Opacity = 0;
Animations.Fade(pdf_text_item, 0.1, 1);
return(search_result_placeholder);
}
}
}
return(null);
}
internal PDFSearchResult SetNextSearchPosition(PDFSearchResult previous_search_result_placeholder)
{
bool have_found_last_search_item = false;
PDFRendererControl pdf_renderer_control = GetPDFRendererControl();
if (pdf_renderer_control != null)
{
foreach (PDFTextItem pdf_text_item in Children.OfType <PDFTextItem>())
{
ASSERT.Test(pdf_text_item != null);
PDFSearchResult search_result_placeholder = pdf_text_item.Tag as PDFSearchResult;
// If there was no previous search location, we use the first we find
// If the last text item was the match position, use this next one
if (null == previous_search_result_placeholder || have_found_last_search_item && previous_search_result_placeholder != search_result_placeholder)
{
pdf_renderer_control.SelectPage(page);
pdf_text_item.BringIntoView();
pdf_text_item.Opacity = 0;
Animations.Fade(pdf_text_item, 0.1, 1);
return(search_result_placeholder);
}
// If we have just found the last match, flag that the next one is the successor match
if (previous_search_result_placeholder == search_result_placeholder)
{
have_found_last_search_item = true;
}
}
}
// We have not managed to find a search position if we get this far
return(null);
}
