/// <summary>
/// イベントルーティング（レンダリング）。
/// </summary>
private void RaiseRender(ICanvasContext.IRenderingContext rc)
{
_lazySharedInfo.Value._IsInvalidating = false;
foreach (var target in Tnc.GetAllChildrenAndSelf()
.Where(target => target._clipRegion.AsReadOnly().Bounds.IsValid))
{
var renderer = new Renderer(_mainOffscreen !, target.AbsoluteRect, target._clipRegion);
target.OnPreviewRender(renderer);
}
foreach (var target in Tnc.GetAllChildrenAndSelfReverse()
.Where(target => target._clipRegion.AsReadOnly().Bounds.IsValid))
{
var renderer = new Renderer(_mainOffscreen !, target.AbsoluteRect, target._clipRegion);
target.OnRender(renderer);
}
rc.TransferScreen(_mainOffscreen !);
// 描画イベント中に「再描画要求」を出すのはNG
Verifier.Verify <InvalidOperationException>(!_lazySharedInfo.Value._IsInvalidating);
foreach (var target in Tnc.GetAllChildrenAndSelf())
{
target._clipRegion.Clear();
}
}
/// <summary>
/// イベントルーティング（フォーカス取得）。
/// </summary>
private void RaiseGotFocus()
{
_lazySharedInfo.Value.HasFocus = true;
foreach (var target in Tnc.GetAllChildrenAndSelf())
{
target.OnPreviewGotFocus();
}
foreach (var target in Tnc.GetAllChildrenAndSelfReverse())
{
target.OnGotFocus();
}
}
/// <summary>
/// イベントルーティング（フォーカス消失）。
/// </summary>
private void RaiseLostFocus()
{
_lazySharedInfo.Value.HasFocus = false;
RaiseMouseLeftButtonUp();
foreach (var target in Tnc.GetAllChildrenAndSelf())
{
target.OnPreviewLostFocus();
}
foreach (var target in Tnc.GetAllChildrenAndSelfReverse())
{
target.OnLostFocus();
}
}
// 以下、トンネリングイベント（プレビューイベント）、バブリングイベントのルーティングを処理する。
/// <summary>
/// イベントルーティング（初期化）。
/// </summary>
private void RaiseCreated(Size2D size)
{
Verifier.Verify <InvalidOperationException>(size.Width > 0);
Verifier.Verify <InvalidOperationException>(size.Height > 0);
_lazySharedInfo.Value.Size = size;
foreach (var target in Tnc.GetAllChildrenAndSelf())
{
target.OnPreviewInitialize();
}
foreach (var target in Tnc.GetAllChildrenAndSelfReverse())
{
target.OnInitialize();
}
#warning このへん、あとで整理
foreach (var target in Tnc.GetAllChildrenAndSelf())
{
target._relativeRect = target.ArrangeElement();
}
foreach (var target in Tnc.GetAllChildrenAndSelf())
{
target.OnPreviewCreated();
}
foreach (var target in Tnc.GetAllChildrenAndSelfReverse())
{
target.OnCreated();
}
_mainOffscreen = CanvasContext.CreateOffscreen(ClientSize);
#warning このへん、あとで整理
RaiseResize(size);
_lazySharedInfo.Value.CanvasContext.Resize += size => RaiseResize(size);
_lazySharedInfo.Value.CanvasContext.RenderFrame += rc => RaiseRender(rc);
_lazySharedInfo.Value.CanvasContext.GotFocus += RaiseGotFocus;
_lazySharedInfo.Value.CanvasContext.LostFocus += RaiseLostFocus;
_lazySharedInfo.Value.CanvasContext.MouseDown += RaiseMouseDown;
_lazySharedInfo.Value.CanvasContext.MouseUp += RaiseMouseUp;
_lazySharedInfo.Value.CanvasContext.MouseMove += RaiseMouseMove;
_lazySharedInfo.Value.CanvasContext.MouseWheel += RaiseMouseWheel;
}
/// <summary>
/// レイアウトを再調整する。
/// </summary>
public void UpdateLayout()
{
foreach (var target in Tnc.GetAllChildrenAndSelf())
{
target._relativeRect = target.ArrangeElement();
target.AbsoluteRect = target.GetAbsoluteRect();
}
foreach (var target in Tnc.GetAllChildrenAndSelf())
{
target.OnPreviewResize();
}
foreach (var target in Tnc.GetAllChildrenAndSelfReverse())
{
target.OnResize();
}
RequestRender();
}
/// <summary>
/// 指定座標のヒットテスト。
/// </summary>
private IEnumerable <UIElement> GetHitTestedElementsTunnel(Point2D absLocation)
{
return(Tnc.GetAllChildrenAndSelf().Where(elem => elem.HitTest(elem.ToLocal(absLocation))));
}