/* Callback from ghostscript with the rendered image. */
private void MainPageCallback(int width, int height, int raster, double zoom_in,
int page_num, IntPtr data)
{
Byte[] bitmap = new byte[raster * height];
idata_t image_data = new idata_t();
Marshal.Copy(data, bitmap, 0, raster * height);
image_data.bitmap = bitmap;
image_data.page_num = page_num;
image_data.width = width;
image_data.height = height;
image_data.raster = raster;
image_data.zoom = zoom_in;
m_images_rendered.Add(image_data);
/* Get the 1.0 page scalings */
if (m_firstime)
{
pagesizes_t page_size = new pagesizes_t();
page_size.size.X = width;
page_size.size.Y = height;
m_page_sizes.Add(page_size);
}
/* Dispatch progress bar update on UI thread */
System.Windows.Application.Current.Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.Send, new Action(() =>
{
m_page_progress_count += 1;
xaml_RenderProgress.Value = ((double)m_page_progress_count / (double)m_numpages) * 100.0;
}));
}
/* Assign current pages to blown up thumbnail images */
private void ThumbAssignMain(int page_num, int width, int height, double zoom_in, ref int offset)
{
m_pageType.Add(Page_Content_t.THUMBNAIL);
DocPage doc_page = new DocPage();
doc_page.Content = Page_Content_t.THUMBNAIL;
doc_page.Zoom = zoom_in;
doc_page.AA = m_aa;
doc_page.BitMap = m_thumbnails[page_num - 1].BitMap;
doc_page.Width = (int)(width / (Constants.SCALE_THUMB));
doc_page.Height = (int)(height / (Constants.SCALE_THUMB));
doc_page.PageNum = page_num;
m_docPages.Add(doc_page);
/* Set the page offsets. Used for determining which pages
* will be visible within viewport. */
m_toppage_pos.Add(offset + Constants.PAGE_VERT_MARGIN);
offset += doc_page.Height + 2 * Constants.PAGE_VERT_MARGIN;
/* Set page sizes for 1.0 scaling. This is used to quick
* rescale of pages prior to rendering at new zoom. */
pagesizes_t page_size = new pagesizes_t();
page_size.size.X = doc_page.Width;
page_size.size.Y = doc_page.Height;
m_page_sizes.Add(page_size);
}
