/// <summary>
/// Transforms for single component.
/// </summary>
/// <param name="ls">Layout state.</param>
/// <param name="rrea">Refresh request.</param>
protected void ComponentTransforms(LayoutState ls, RefreshRequestEventArgs rrea)
{
if (rrea.Component is IRequireTransforms irt)
{
var rect = ls.Layout.For(rrea.Component);
_trace.Verbose($"component-transforms {rrea.Component} {rrea.Axis} {rect}");
var ctx = new DefaultRenderContext(Surface, Components, ls.LayoutDimensions, rect, ls.Layout.RemainingRect, DataContext)
{
Type = RenderType.TransformsOnly
};
irt.Transforms(ctx);
}
}
/// <summary>
/// Provide a render context for given component.
/// Created contexts are cached until <see cref="InitializeLayoutContext"/> is called.
/// <para/>
/// Sets the <see cref="DefaultRenderContext.Type"/> to the current value of <see cref="Type"/>.
/// </summary>
/// <param name="cc">Component to provide context for.</param>
/// <param name="surf">For ctor.</param>
/// <param name="ccs">For ctor.</param>
/// <param name="dc">For ctor.</param>
/// <returns>New or cached instance.</returns>
public DefaultRenderContext RenderFor(ChartComponent cc, Canvas surf, ObservableCollection <ChartComponent> ccs, object dc)
{
if (rendercache.ContainsKey(cc))
{
var rc = rendercache[cc];
rc.Type = Type;
return(rc);
}
var rect = Layout.For(cc);
var drc = new DefaultRenderContext(surf, ccs, LayoutDimensions, rect, Layout.RemainingRect, dc);
rendercache.Add(cc, drc);
drc.Type = Type;
return(drc);
}
/// <summary>
/// Render for single component.
/// </summary>
/// <param name="ls">Layout state.</param>
/// <param name="rrea">Refresh request.</param>
protected void ComponentRender(LayoutState ls, RefreshRequestEventArgs rrea)
{
if (rrea.Component is IRequireRender irr)
{
var rect = ls.Layout.For(rrea.Component);
_trace.Verbose($"component-render {rrea.Component} {rrea.Axis} {rect}");
if (rrea.Axis != AxisUpdateState.None)
{
// put axis limits into correct state for IRequireRender components
Phase_ResetAxes();
//Phase_AxisLimits((cc2) => cc2 is DataSeries && (cc2 is IProvideValueExtents));
Phase_AxisLimits(ValueExtents_DataSeries.Items);
}
var ctx = new DefaultRenderContext(Surface, Components, ls.LayoutDimensions, rect, ls.Layout.RemainingRect, DataContext)
{
Type = RenderType.Component
};
irr.Render(ctx);
if (rrea.Axis != AxisUpdateState.None)
{
// axes MUST be re-evaluated because this thing changed.
//Phase_AxisLimits((cc2) => !(cc2 is DataSeries) && (cc2 is IProvideValueExtents));
Phase_AxisLimits(ValueExtents_NotDataSeries.Items);
Phase_AxesFinalized(ls);
Phase_RenderPostAxesFinalized(ls);
Phase_RenderAxes(ls);
Phase_Transforms(ls);
}
else
{
if (rrea.Component is IRequireTransforms irt)
{
irt.Transforms(ctx);
}
}
}
}
