public static string ResizeConstabLogo(string filepath)
{
//need to convert image to png
try
{
using (MagickImage image = new MagickImage(filepath))
{
image.Write(Constants.TempLogoFile);
}
using (MagickImage image = new MagickImage(Constants.TempLogoFile))
{
MagickGeometry size = new MagickGeometry(196, 196);
size.IgnoreAspectRatio = false;
image.Resize(size);
image.Write(Constants.TempImgFile);
}
string base64;
using (Image img = new Bitmap(Constants.TempImgFile))
{
base64 = img.ToBase64Encoded();
}
ImageDiskCache.RemoveItemsInCache();
return(base64);
}
catch
{
throw new Exception("Unable to save icon");
}
}
/// <summary>
/// Adds the specified image to the temporary disk cache
/// </summary>
/// <param name="screenshot">The Image to save to the cache</param>
/// <returns>True if save did not throw an exception (it was successful), false otherwise.</returns>
/// <remarks>This image will get removed from the cache once utilised.</remarks>
public static bool SaveScreenshotToCache(Image screenshot)
{
bool saved = false;
ImageDiskCache cache = new ImageDiskCache();
cache.AddImage("temp", screenshot);
return saved;
}
/// <summary>
/// Adds the specified image to the temporary disk cache
/// </summary>
/// <param name="screenshot">The Image to save to the cache</param>
/// <returns>True if save did not throw an exception (it was successful), false otherwise.</returns>
/// <remarks>This image will get removed from the cache once utilised.</remarks>
public static bool SaveScreenshotToCache(Image screenshot)
{
bool saved = false;
ImageDiskCache cache = new ImageDiskCache();
cache.AddImage("temp", screenshot);
return(saved);
}
private async void FullpageScreenshotByScrolling()
{
int scrollHeight = GetDocHeight();
if (scrollHeight == 0)
{
FireScreenshotCompleteEvent(false);
return;
}
Enabled = false;
int viewportHeight = ClientRectangle.Size.Height;
int viewportWidth = ClientRectangle.Size.Width;
await GetBrowser().MainFrame.EvaluateScriptAsync("(function() { document.documentElement.style.overflow = 'hidden'; })();");
int count = 0;
int pageLeft = scrollHeight;
bool atBottom = false;
Debug.WriteLine($"OUTSIDE --- PAGE LEFT: {pageLeft}. VIEWPORT HEIGHT: {viewportHeight}");
ImageDiskCache cache = new ImageDiskCache();
while (!atBottom)
{
if (pageLeft > viewportHeight)
{
//if we can scroll using the viewport, let's do that
await GetBrowser().MainFrame.EvaluateScriptAsync("(function() { window.scroll(0," + (count * viewportHeight) + "); })();");
count++;
await PutTaskDelay(); //we do need these delays. Some pages, like facebook, may need to load viewport content.
using (Bitmap image = GetCurrentViewScreenshot())
{
cache.AddImage(count, image);
}
await GetBrowser().MainFrame.EvaluateScriptAsync("(function() { var elements = document.querySelectorAll('*'); for (var i = 0; i < elements.length; i++) { var position = window.getComputedStyle(elements[i]).position; if (position === 'fixed') { elements[i].style.visibility = 'hidden'; } } })(); ");
}
else
{
//find out what's left of the page to scroll, then take screenshot
//if it's the last image, we're going to need to crop what we need, as it'll take
//a capture of the entire viewport.
await GetBrowser().MainFrame.EvaluateScriptAsync("(function() { window.scrollBy(0," + pageLeft + "); })();");
atBottom = true;
count++;
await PutTaskDelay();
Rectangle cropRect = new Rectangle(new Point(0, viewportHeight - pageLeft), new Size(viewportWidth, pageLeft));
using (Bitmap src = GetCurrentViewScreenshot())
using (Bitmap target = new Bitmap(cropRect.Width, cropRect.Height))
using (Graphics g = Graphics.FromImage(target))
{
g.DrawImage(src, new Rectangle(0, 0, target.Width, target.Height), cropRect, GraphicsUnit.Pixel);
cache.AddImage(count, target);
}
}
pageLeft = pageLeft - viewportHeight;
Debug.WriteLine($"IN WHILE --- PAGE LEFT: {pageLeft}. VIEWPORT HEIGHT: {viewportHeight}");
}//end while
await GetBrowser().MainFrame.EvaluateScriptAsync("(function() { document.documentElement.style.overflow = 'auto'; })();");
await GetBrowser().MainFrame.EvaluateScriptAsync("javascript:var s = function() { document.body.scrollTop = document.documentElement.scrollTop = 0;}; s();");
await GetBrowser().MainFrame.EvaluateScriptAsync("(function() { var elements = document.querySelectorAll('*'); for (var i = 0; i < elements.length; i++) { var position = window.getComputedStyle(elements[i]).position; if (position === 'fixed') { elements[i].style.visibility = 'visible'; } } })(); ");
Enabled = true;
WaitWindow.Show(GetScreenshot, Resources.strings.CombineScreenshots);
FireScreenshotCompleteEvent(true);
}
