public TextLayout()
{
handler = ToolkitEngine.TextLayoutBackendHandler;
Backend = handler.Create();
Font = Font.SystemFont;
Setup();
}
public TextLayout(Canvas canvas)
{
ToolkitEngine = canvas.Surface.ToolkitEngine;
handler = ToolkitEngine.TextLayoutBackendHandler;
Backend = handler.Create();
Font = canvas.Font;
}
internal TextLayout(Toolkit tk)
{
ToolkitEngine = tk;
handler = ToolkitEngine.TextLayoutBackendHandler;
Backend = handler.Create();
Setup();
}
internal void InitForToolkit(Toolkit tk)
{
if (ToolkitEngine == null || ToolkitEngine != tk)
{
// If this is a re-initialization we dispose the previous state
if (handler != null)
{
Dispose();
GC.ReRegisterForFinalize(this);
}
ToolkitEngine = tk;
handler = ToolkitEngine.TextLayoutBackendHandler;
Backend = handler.Create();
Setup();
font = (Font)tk.ValidateObject(font);
if (font != null)
{
handler.SetFont(Backend, font);
}
if (text != null)
{
handler.SetText(Backend, text);
}
if (width != -1)
{
handler.SetWidth(Backend, width);
}
if (height != -1)
{
handler.SetHeight(Backend, height);
}
if (textAlignment != default(Alignment))
{
handler.SetAlignment(Backend, textAlignment);
}
if (attributes != null && attributes.Count > 0)
{
foreach (var attr in attributes)
{
handler.AddAttribute(Backend, attr);
}
}
}
}
public TextLayout(Context ctx)
{
ToolkitEngine = ctx.ToolkitEngine;
handler = ToolkitEngine.TextLayoutBackendHandler;
Backend = handler.Create(ctx);
}