private void Dispose(bool disposing)
{
if (!disposing)
{
return;
}
if (m_fontCache != null)
{
m_fontCache.Dispose();
m_fontCache = null;
}
if (m_gdiWriter != null)
{
m_gdiWriter.Dispose();
m_gdiWriter = null;
}
if (SharedImages == null)
{
return;
}
foreach (Image value in SharedImages.Values)
{
value.Dispose();
}
SharedImages = null;
}
/// <summary>
/// Releases unmanaged and - optionally - managed resources
/// </summary>
/// <param name="disposing"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
protected override void Dispose(bool disposing)
{
if (disposing)
{
if (_fontCache != null)
{
_fontCache.Dispose();
_fontCache = null;
}
}
base.Dispose(disposing);
}
private void DisposeGraphics()
{
if (m_bitsGraphics != null)
{
m_bitsGraphics.Dispose();
m_bitsGraphics = null;
}
if (m_hdcBits != null)
{
m_hdcBits.Dispose();
m_hdcBits = null;
}
if (m_fontCache != null)
{
m_fontCache.Dispose();
m_fontCache = null;
}
}
internal void DisposeGraphics()
{
m_textBoxDuplicates = null;
m_itemPaddingsStyle = null;
m_itemPropsStart = null;
m_sharedImages = null;
m_autosizeSharedImages = null;
if (m_propertyCache != null)
{
m_propertyCacheReader = null;
m_propertyCacheWriter = null;
m_propertyCache.Close();
m_propertyCache.Dispose();
}
if (m_bitsGraphics != null)
{
m_bitsGraphics.Dispose();
m_bitsGraphics = null;
}
if (m_hdcBits != null)
{
m_hdcBits.Dispose();
m_hdcBits = null;
}
if (m_scalabilityCache != null)
{
m_totalScaleTimeMs += m_scalabilityCache.ScalabilityDurationMs;
m_peakMemoryUsageKB = Math.Max(m_peakMemoryUsageKB, m_scalabilityCache.PeakMemoryUsageKBytes);
m_scalabilityCache.Dispose();
m_scalabilityCache = null;
}
if (m_fontCache != null)
{
m_fontCache.Dispose();
m_fontCache = null;
}
}
public void StressTest()
{
Font[] fonts = new Font[10];
for (int i = 0; i < 10; i++)
{
fonts[i] = new Font("Arial", i + 6);
}
FontCache cache = new FontCache(softLimit: 4, hardLimit: 8);
Random random = new Random();
try
{
for (int i = 0; i < 10_000; i++)
{
Thread.Sleep(random.Next(5));
Task.Run(() =>
{
using var hfont = cache.GetHFONT(
fonts[random.Next(10)],
(Gdi32.QUALITY)random.Next(7));
Assert.False(hfont.HFONT.IsNull);
Thread.Sleep(random.Next(10));
});
}
}
finally
{
cache.Dispose();
for (int i = 0; i < 10; i++)
{
fonts[i]?.Dispose();
}
}
}
public void Dispose()
{
_fontCache.Dispose();
}
public virtual void Dispose()
{
m_fontCache.Dispose();
GC.SuppressFinalize(this);
}
