protected virtual void OnHandleError(string message, Exception exception)
{
if (this.DesignMode)
{
return;
}
var errorArgs = new SvgErrorArgs(message, exception);
_svgErrors?.Invoke(this, errorArgs);
if (!errorArgs.Handled)
{
throw new SvgErrorException(errorArgs);
}
}
private void InvalidateAndRender()
{
try
{
if (_svgRenderer != null)
{
SvgSvgElement svgEl = (SvgSvgElement)_svgWindow.Document.RootElement;
SvgSizeF r = svgEl.GetSize();
int winWidth = (int)svgEl.Width.BaseVal.Value;
int winHeight = (int)svgEl.Height.BaseVal.Value;
if (!r.Width.Equals(0.0) && !r.Height.Equals(0.0) && (r.Width * 4 * r.Height) < BitmapLimit)
{
winWidth = (int)r.Width;
winHeight = (int)r.Height;
}
if ((winWidth * 4 * winHeight) >= BitmapLimit)
{
winWidth = this.Width;
winHeight = this.Height;
}
_svgWindow.Resize(winWidth, winHeight);
_svgRenderer.Render(_svgWindow.Document as SvgDocument);
}
}
catch (Exception ex)
{
Trace.TraceError(ex.ToString());
if (this.DesignMode)
{
return;
}
var errorArgs = new SvgErrorArgs("An exception occurred while rendering", ex);
_svgErrors?.Invoke(this, errorArgs);
if (!errorArgs.Handled)
{
MessageBox.Show(errorArgs.Message + ": " + ex.Message,
_appTitle, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
protected virtual void Load()
{
try
{
if (!string.IsNullOrWhiteSpace(_svgSource))
{
// Load the source
_svgWindow.Source = _svgSource;
// Initialize the style sheets
SetupStyleSheets();
// Execute all script elements
//UnloadEngines();
//InitializeEvents();
//ExecuteScripts();
SvgSvgElement svgEl = (SvgSvgElement)_svgWindow.Document.RootElement;
SvgSizeF r = svgEl.GetSize();
int winWidth = (int)svgEl.Width.BaseVal.Value;
int winHeight = (int)svgEl.Height.BaseVal.Value;
if (!r.Width.Equals(0.0) && !r.Height.Equals(0.0) && (r.Width * 4 * r.Height) < BitmapLimit)
{
winWidth = (int)r.Width;
winHeight = (int)r.Height;
}
if ((winWidth * 4 * winHeight) >= BitmapLimit)
{
winWidth = this.Width;
winHeight = this.Height;
}
_svgWindow.Resize(winWidth, winHeight);
_svgRenderer.InvalidRect = SvgRectF.Empty;
this.Render();
_isSvgLoaded = true;
}
else if (!string.IsNullOrWhiteSpace(_xmlSource) && _xmlSource.Length > ValidSVG.Length)
{
SvgDocument doc = _svgWindow.CreateEmptySvgDocument();
doc.LoadXml(_xmlSource);
_svgWindow.Document = doc;
SetupStyleSheets();
SvgSvgElement svgEl = (SvgSvgElement)_svgWindow.Document.RootElement;
SvgSizeF r = svgEl.GetSize();
int winWidth = (int)svgEl.Width.BaseVal.Value;
int winHeight = (int)svgEl.Height.BaseVal.Value;
if (!r.Width.Equals(0.0) && !r.Height.Equals(0.0) && (r.Width * 4 * r.Height) < BitmapLimit)
{
winWidth = (int)r.Width;
winHeight = (int)r.Height;
}
if ((winWidth * 4 * winHeight) >= BitmapLimit)
{
winWidth = this.Width;
winHeight = this.Height;
}
_svgWindow.Resize(winWidth, winHeight);
_svgRenderer.InvalidRect = SvgRectF.Empty;
this.Render();
_isSvgLoaded = true;
}
else if (_uriSource != null)
{
// Load the source
_svgWindow.Source = _uriSource.AbsoluteUri;
// Initialize the style sheets
SetupStyleSheets();
// Execute all script elements
//UnloadEngines();
//InitializeEvents();
//ExecuteScripts();
SvgSvgElement svgEl = (SvgSvgElement)_svgWindow.Document.RootElement;
SvgSizeF r = svgEl.GetSize();
int winWidth = (int)svgEl.Width.BaseVal.Value;
int winHeight = (int)svgEl.Height.BaseVal.Value;
if (!r.Width.Equals(0.0) && !r.Height.Equals(0.0) && (r.Width * 4 * r.Height) < BitmapLimit)
{
winWidth = (int)r.Width;
winHeight = (int)r.Height;
}
if ((winWidth * 4 * winHeight) >= BitmapLimit)
{
winWidth = this.Width;
winHeight = this.Height;
}
_svgWindow.Resize(winWidth, winHeight);
_svgRenderer.InvalidRect = SvgRectF.Empty;
this.Render();
_isSvgLoaded = true;
}
else if (_streamSource != null)
{
SvgDocument doc = _svgWindow.CreateEmptySvgDocument();
doc.Load(_streamSource);
_svgWindow.Document = doc;
SetupStyleSheets();
SvgSvgElement svgEl = (SvgSvgElement)_svgWindow.Document.RootElement;
SvgSizeF r = svgEl.GetSize();
int winWidth = (int)svgEl.Width.BaseVal.Value;
int winHeight = (int)svgEl.Height.BaseVal.Value;
if (!r.Width.Equals(0.0) && !r.Height.Equals(0.0) && (r.Width * 4 * r.Height) < BitmapLimit)
{
winWidth = (int)r.Width;
winHeight = (int)r.Height;
}
if ((winWidth * 4 * winHeight) >= BitmapLimit)
{
winWidth = this.Width;
winHeight = this.Height;
}
_svgWindow.Resize(winWidth, winHeight);
_svgRenderer.InvalidRect = SvgRectF.Empty;
this.Render();
_isSvgLoaded = true;
}
}
catch (Exception ex)
{
Trace.TraceError(ex.ToString());
if (this.DesignMode)
{
return;
}
var errorArgs = new SvgErrorArgs("An error occurred while loading the document", ex);
_svgErrors?.Invoke(this, errorArgs);
if (!errorArgs.Handled)
{
MessageBox.Show(errorArgs.Message + ": " + ex.Message,
_appTitle, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}