private DeviceContext(Graphics graphics, ScriptMetricsCache scriptMetricsCache)
{
this.graphics = graphics;
this.scriptMetricsCache = scriptMetricsCache;
HDC = graphics != null?graphics.GetHdc() : NativeMethods.GetDC(IntPtr.Zero);
}
private DeviceContext(Graphics graphics, ScriptMetricsCache scriptMetricsCache)
{
this.graphics = graphics;
this.scriptMetricsCache = scriptMetricsCache;
HDC = graphics != null ? graphics.GetHdc() : NativeMethods.GetDC(IntPtr.Zero);
}
public static DeviceContext CreateFromScreen(ScriptMetricsCache scriptMetricsCache)
{
return(new DeviceContext(null, scriptMetricsCache));
}
public static DeviceContext CreateFromGraphics(Graphics graphics, ScriptMetricsCache scriptMetricsCache)
{
return(new DeviceContext(graphics, scriptMetricsCache));
}
/// <summary>
/// Creates a layout for a document.
/// </summary>
/// <param name="document">The document.</param>
/// <param name="parentControl">The parent control to which embedded objects can
/// attach themselves.</param>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="document"/>
/// or <paramref name="parentControl"/> is null.</exception>
public SplashLayout(SplashDocument document, Control parentControl)
{
if (document == null)
throw new ArgumentNullException("document");
if (parentControl == null)
throw new ArgumentNullException("parentControl");
this.document = document;
this.parentControl = parentControl;
recursionGuard = new RecursionGuard();
scriptMetricsCache = new ScriptMetricsCache();
scriptLineBuffer = new UnmanagedBuffer(InitialCapacityForLinesPerDocument, sizeof(ScriptLine));
tempScriptItemBuffer = new UnmanagedBuffer(InitialCapacityForScriptRunsPerParagraph, sizeof(SCRIPT_ITEM));
tempEmbeddingLevelBuffer = new UnmanagedBuffer(InitialCapacityForScriptRunsPerParagraph, sizeof(byte));
tempVisualToLogicalMapBuffer = new UnmanagedBuffer(InitialCapacityForScriptRunsPerParagraph, sizeof(int));
tempLogicalClustersBuffer = new UnmanagedBuffer(InitialCapacityForCharsPerScriptRun, sizeof(short));
scriptParagraphCache = new ScriptParagraphCache(ScriptParagraphCacheSize);
embeddedObjectHosts = new Dictionary<int, EmbeddedObjectHost>();
pendingEmbeddedObjectHostsToCreate = new Queue<EmbeddedObjectHost>();
pendingEmbeddedObjectHostsToShow = new Queue<EmbeddedObjectHost>();
desiredLayoutWidth = 400; // arbitrary
desiredLayoutRightToLeft = false; // arbitrary
AttachDocumentEvents();
Reset();
}
public static DeviceContext CreateFromScreen(ScriptMetricsCache scriptMetricsCache)
{
return new DeviceContext(null, scriptMetricsCache);
}
public static DeviceContext CreateFromGraphics(Graphics graphics, ScriptMetricsCache scriptMetricsCache)
{
return new DeviceContext(graphics, scriptMetricsCache);
}