/// <summary>
/// 子要素に必要なレイアウトのサイズを測定し、パネルのサイズを決定する。
/// </summary>
/// <param name="availableSize">子要素に与えることができる使用可能なサイズ。</param>
/// <returns>レイアウト時にこのパネルが必要とするサイズ。</returns>
protected override Size MeasureOverride(Size availableSize)
{
#if true
//Debug.Assert(this.Orientation == Orientation.Horizontal);
var isHorizontal = this.Orientation == Orientation.Horizontal;
var maxSize = default(Size);
if (GetLogicalWidth(availableSize) < 1) return maxSize;
// ビューポートのサイズが変更された初期化
var isChaigeViewPortSize = prevViewPortSize != availableSize;
if (isChaigeViewPortSize)
{
System.Console.WriteLine("ViewPoirt:"+availableSize);
containerLayouts.Clear();
}
// 変更前の1行の要素数
var prevColumCount = Math.Max(1,Convert.ToInt32(GetLogicalWidth(prevViewPortSize)) / Convert.ToInt32(GetLogicalWidth(prevSize)));
// 最初の操作インデックス取得
var vy = Convert.ToInt32(this.offset.Y) / Convert.ToInt32(prevSize.Height);
var vx = Convert.ToInt32(GetLogicalX(this.offset)) / Convert.ToInt32(prevSize.Width);
var first = vx + vy * prevColumCount;
// 最後のインデックス取得
var vey = (Convert.ToInt32(GetLogicalY(this.offset)) + GetLogicalHeight(prevViewPortSize)) / Convert.ToInt32(GetLogicalHeight(prevSize)) + 2;
var vex = (Convert.ToInt32(GetLogicalX(this.offset)) + GetLogicalWidth(prevViewPortSize)) / Convert.ToInt32(GetLogicalWidth(prevSize)) + 1;
var end = Convert.ToInt32(vex + vey * prevColumCount) + 1;
int childrenCount = 0;
var itemsControl = ItemsControl.GetItemsOwner(this);
if (itemsControl != null)
{
childrenCount = itemsControl.Items.Count;
}
if (childrenCount < 1) return maxSize;
// TODO:TEST変更があった場合は大きく取るように修正
if (isChaigeViewPortSize)
{
if (first < 1)
{
first = 0;
end = 1000;
}
if (end >= childrenCount)
{
end = childrenCount;
first = end -1000;
}
}
// TODO:中にすべての要素が含まれている必要がある。
// 補正した最終インデックス
var firstIndex = Math.Max(0, first);
var endIndex = Math.Min(end, childrenCount);
System.Console.WriteLine("Index:{0},{1}",first, end);
// 変更あとの1行の要素数
var columCount = Math.Max(1, Convert.ToInt32(GetLogicalWidth(availableSize)) / Convert.ToInt32(GetLogicalWidth(prevSize)));
var adjustViewPortOffset = this.offset;
if (isChaigeViewPortSize)
{
var pvy = GetLogicalY(adjustViewPortOffset);
pvy = pvy * prevColumCount / columCount;
if (isHorizontal)
{
adjustViewPortOffset.Y = pvy;
}
else
{
adjustViewPortOffset.X = pvy;
}
}
//var container = this.InternalChildren;
//var childrenCount = container.Count;
bool continium = false;
var childSize = prevSize;
#if false // normal calc
using (var generator = new ChildGenerator(this))
{
for (int i = firstIndex; i < endIndex; i++)
{
// オフセット
var x = (int)((i % columCount) * childSize.Width);
var y = (int)((i / columCount) * childSize.Height);
// 子要素がビューポート内であれば子要素を生成しサイズを再計測
var itemRect = new Rect(x, y, childSize.Width, childSize.Height);
var viewportRect = new Rect(adjustViewPortOffset, availableSize);
if (itemRect.IntersectsWith(viewportRect))
{
var child = generator.GetOrCreateChild(i);
child.Measure(childSize);
childSize = this.ContainerSizeForIndex(i);
// 確定したサイズを記憶
this.containerLayouts[i]= new Rect(x, y, childSize.Width, childSize.Height);
continium = true;
continue;
}
if (continium) break;
}
}
#else // timelimit version.
// measure phase
var endCheckIndex = endIndex;
for (int i = firstIndex; i < endCheckIndex; i++)
{
// オフセット
var x = (int)((i % columCount) * GetLogicalWidth(childSize));
var y = (int)((i / columCount) * GetLogicalHeight(childSize));
// 子要素がビューポート内であれば子要素を生成しサイズを再計測
var itemRect = new Rect(isHorizontal?x:y, isHorizontal ? y : x, childSize.Width, childSize.Height);
var viewportRect = new Rect(adjustViewPortOffset, availableSize);
if (itemRect.IntersectsWith(viewportRect))
{
//var child = generator.GetOrCreateChild(i);
//child.Measure(childSize);
//childSize = this.ContainerSizeForIndex(i);
// 確定したサイズを記憶
this.containerLayouts[i]= new Rect(isHorizontal ? x : y, isHorizontal ? y : x, childSize.Width, childSize.Height);
// インデックスの確定補正
if (!continium)
{
firstIndex = i;
}
endIndex = i;
continium = true;
continue;
}
if (continium) break;
}
using (var generator = new ChildGenerator(this, firstIndex, endIndex))
{
//continium = false;
var limitTime = 250;
var stopWatch = new Stopwatch();
// create phase
for (int i = firstIndex; i < endIndex; i++)
{
// オフセット
//var x = (int)((i % columCount) * GetLogicalWidth(childSize));
//var y = (int)((i / columCount) * GetLogicalHeight(childSize));
// 子要素がビューポート内であれば子要素を生成しサイズを再計測
//var itemRect = new Rect(isHorizontal ? x : y, isHorizontal ? y : x, childSize.Width, childSize.Height);
//var viewportRect = new Rect(adjustViewPortOffset, availableSize);
//if (itemRect.IntersectsWith(viewportRect))
{
var child = generator.GetChild(i);
if (child == null)
{
stopWatch.Start();
child = generator.GetOrCreateChild(i);
}
//child.Measure(childSize);
//childSize = this.ContainerSizeForIndex(i);
// 確定したサイズを記憶
//this.containerLayouts[i] = new Rect(isHorizontal ? x : y, isHorizontal ? y : x, childSize.Width, childSize.Height);
// timelimit
stopWatch.Stop();
//if (stopWatch.ElapsedMilliseconds > limitTime)
if (stopWatch.ElapsedTicks > limitTime)
{
Console.WriteLine("request Measure");
Dispatcher.BeginInvoke((Action)(() =>
{
//System.Console.WriteLine("Measure");
InvalidateMeasure();
}));
break;
}
continium = true;
continue;
}
//if (continium) break;
}
#endif
generator.CleanupChildren();
}
var row = childrenCount / columCount + ((childrenCount % columCount == 0) ? 0 : 1);
if (isHorizontal)
{
maxSize = new Size(availableSize.Width, Math.Max(row * childSize.Height, availableSize.Height));
} else
{
maxSize = new Size(Math.Max(row * childSize.Width, availableSize.Width), availableSize.Height );
}
prevViewPortSize = availableSize;
this.extent = maxSize;
this.viewport = availableSize;
//this.offset = adjustViewPortOffset;
SetVerticalOffset(adjustViewPortOffset.Y);
if (this.ScrollOwner != null)
this.ScrollOwner.InvalidateScrollInfo();
return maxSize;
#else
this.containerLayouts.Clear();
var isAutoWidth = double.IsNaN(this.ItemWidth);
var isAutoHeight = double.IsNaN(this.ItemHeight);
var childAvailable = new Size(isAutoWidth ? double.PositiveInfinity : this.ItemWidth, isAutoHeight ? double.PositiveInfinity : this.ItemHeight);
var isHorizontal = this.Orientation == Orientation.Horizontal;
var childrenCount = this.InternalChildren.Count;
var itemsControl = ItemsControl.GetItemsOwner(this);
if (itemsControl != null)
childrenCount = itemsControl.Items.Count;
var generator = new ChildGenerator(this);
var x = 0.0;
var y = 0.0;
var lineSize = default(Size);
var maxSize = default(Size);
for (int i = 0; i < childrenCount; i++)
{
var childSize = this.ContainerSizeForIndex(i);
// ビューポートとの交差判定用に仮サイズで x, y を調整
var isWrapped = isHorizontal ?
lineSize.Width + childSize.Width > availableSize.Width :
lineSize.Height + childSize.Height > availableSize.Height;
if (isWrapped)
{
x = isHorizontal ? 0 : x + lineSize.Width;
y = isHorizontal ? y + lineSize.Height : 0;
}
// 子要素がビューポート内であれば子要素を生成しサイズを再計測
var itemRect = new Rect(x, y, childSize.Width, childSize.Height);
var viewportRect = new Rect(this.offset, availableSize);
if (itemRect.IntersectsWith(viewportRect))
{
var child = generator.GetOrCreateChild(i);
child.Measure(childAvailable);
childSize = this.ContainerSizeForIndex(i);
}
// 確定したサイズを記憶
this.containerLayouts[i] = new Rect(x, y, childSize.Width, childSize.Height);
// lineSize, maxSize を計算
isWrapped = isHorizontal ?
lineSize.Width + childSize.Width > availableSize.Width :
lineSize.Height + childSize.Height > availableSize.Height;
if (isWrapped)
{
maxSize.Width = isHorizontal ? Math.Max(lineSize.Width, maxSize.Width) : maxSize.Width + lineSize.Width;
maxSize.Height = isHorizontal ? maxSize.Height + lineSize.Height : Math.Max(lineSize.Height, maxSize.Height);
lineSize = childSize;
isWrapped = isHorizontal ?
childSize.Width > availableSize.Width :
childSize.Height > availableSize.Height;
if (isWrapped)
{
maxSize.Width = isHorizontal ? Math.Max(childSize.Width, maxSize.Width) : maxSize.Width + childSize.Width;
maxSize.Height = isHorizontal ? maxSize.Height + childSize.Height : Math.Max(childSize.Height, maxSize.Height);
lineSize = default(Size);
}
}
else
{
lineSize.Width = isHorizontal ? lineSize.Width + childSize.Width : Math.Max(childSize.Width, lineSize.Width);
lineSize.Height = isHorizontal ? Math.Max(childSize.Height, lineSize.Height) : lineSize.Height + childSize.Height;
}
x = isHorizontal ? lineSize.Width : maxSize.Width;
y = isHorizontal ? maxSize.Height : lineSize.Height;
}
maxSize.Width = isHorizontal ? Math.Max(lineSize.Width, maxSize.Width) : maxSize.Width + lineSize.Width;
maxSize.Height = isHorizontal ? maxSize.Height + lineSize.Height : Math.Max(lineSize.Height, maxSize.Height);
this.extent = maxSize;
this.viewport = availableSize;
generator.CleanupChildren();
generator.Dispose();
if (this.ScrollOwner != null)
this.ScrollOwner.InvalidateScrollInfo();
return maxSize;
#endif
}
/// <summary>
/// 子要素に必要なレイアウトのサイズを測定し、パネルのサイズを決定する。
/// </summary>
/// <param name="availableSize">子要素に与えることができる使用可能なサイズ。</param>
/// <returns>レイアウト時にこのパネルが必要とするサイズ。</returns>
protected override Size MeasureOverride(Size availableSize)
{
var maxSize = default(Size);
try
{
this.containerLayouts.Clear();
var isAutoWidth = double.IsNaN(this.ItemWidth);
var isAutoHeight = double.IsNaN(this.ItemHeight);
var childAvailable = new Size(isAutoWidth
? double.PositiveInfinity
: this.ItemWidth, isAutoHeight
? double.PositiveInfinity
: this.ItemHeight);
var isHorizontal = this.Orientation == Orientation.Horizontal;
var childrenCount = this.InternalChildren.Count;
var itemsControl = ItemsControl.GetItemsOwner(this);
if (itemsControl != null)
{
childrenCount = itemsControl.Items.Count;
}
var generator = new ChildGenerator(this);
var x = 0.0;
var y = 0.0;
var lineSize = default(Size);
for (int i = 0; i < childrenCount; i++)
{
var childSize = this.ContainerSizeForIndex(i);
// ビューポートとの交差判定用に仮サイズで x, y を調整
var isWrapped = isHorizontal
? lineSize.Width + childSize.Width > availableSize.Width
: lineSize.Height + childSize.Height > availableSize.Height;
if (isWrapped)
{
x = isHorizontal
? 0
: x + lineSize.Width;
y = isHorizontal
? y + lineSize.Height
: 0;
}
// 子要素がビューポート内であれば子要素を生成しサイズを再計測
var itemRect = new Rect(x, y, childSize.Width, childSize.Height);
var viewportRect = new Rect(this.offset, availableSize);
if (itemRect.IntersectsWith(viewportRect))
{
var child = generator.GetOrCreateChild(i);
child.Measure(childAvailable);
childSize = this.ContainerSizeForIndex(i);
}
// 確定したサイズを記憶
this.containerLayouts[i] = new Rect(x, y, childSize.Width, childSize.Height);
// lineSize, maxSize を計算
isWrapped = isHorizontal
? lineSize.Width + childSize.Width > availableSize.Width
: lineSize.Height + childSize.Height > availableSize.Height;
if (isWrapped)
{
maxSize.Width = isHorizontal
? Math.Max(lineSize.Width, maxSize.Width)
: maxSize.Width + lineSize.Width;
maxSize.Height = isHorizontal
? maxSize.Height + lineSize.Height
: Math.Max(lineSize.Height, maxSize.Height);
lineSize = childSize;
isWrapped = isHorizontal
? childSize.Width > availableSize.Width
: childSize.Height > availableSize.Height;
if (isWrapped)
{
maxSize.Width = isHorizontal
? Math.Max(childSize.Width, maxSize.Width)
: maxSize.Width + childSize.Width;
maxSize.Height = isHorizontal
? maxSize.Height + childSize.Height
: Math.Max(childSize.Height, maxSize.Height);
lineSize = default(Size);
}
}
else
{
lineSize.Width = isHorizontal
? lineSize.Width + childSize.Width
: Math.Max(childSize.Width, lineSize.Width);
lineSize.Height = isHorizontal
? Math.Max(childSize.Height, lineSize.Height)
: lineSize.Height + childSize.Height;
}
x = isHorizontal
? lineSize.Width
: maxSize.Width;
y = isHorizontal
? maxSize.Height
: lineSize.Height;
}
maxSize.Width = isHorizontal
? Math.Max(lineSize.Width, maxSize.Width)
: maxSize.Width + lineSize.Width;
maxSize.Height = isHorizontal
? maxSize.Height + lineSize.Height
: Math.Max(lineSize.Height, maxSize.Height);
this.extent = maxSize;
this.viewport = availableSize;
generator.CleanupChildren();
generator?.Dispose();
if (this.ScrollOwner != null)
{
this.ScrollOwner.InvalidateScrollInfo();
}
}
catch { }
return(maxSize);
}
protected override Size MeasureOverride(Size availableSize)
{
this.containerLayouts.Clear();
var isAutoWidth = double.IsNaN(this.ItemWidth);
var isAutoHeight = double.IsNaN(this.ItemHeight);
var childAvailable = new Size(isAutoWidth ? double.PositiveInfinity : this.ItemWidth, isAutoHeight ? double.PositiveInfinity : this.ItemHeight);
var isHorizontal = this.Orientation == Orientation.Horizontal;
var childrenCount = this.InternalChildren.Count;
var itemsControl = ItemsControl.GetItemsOwner(this);
if (itemsControl != null)
childrenCount = itemsControl.Items.Count;
var generator = new ChildGenerator(this);
var x = 0.0;
var y = 0.0;
var lineSize = default(Size);
var maxSize = default(Size);
for (int i = 0; i < childrenCount; i++)
{
var childSize = this.ContainerSizeForIndex(i);
var isWrapped = isHorizontal ?
lineSize.Width + childSize.Width > availableSize.Width :
lineSize.Height + childSize.Height > availableSize.Height;
if (isWrapped)
{
x = isHorizontal ? 0 : x + lineSize.Width;
y = isHorizontal ? y + lineSize.Height : 0;
}
var itemRect = new Rect(x, y, childSize.Width, childSize.Height);
var viewportRect = new Rect(this.offset, availableSize);
if (itemRect.IntersectsWith(viewportRect))
{
var child = generator.GetOrCreateChild(i);
child.Measure(childAvailable);
childSize = this.ContainerSizeForIndex(i);
}
this.containerLayouts[i] = new Rect(x, y, childSize.Width, childSize.Height);
isWrapped = isHorizontal ?
lineSize.Width + childSize.Width > availableSize.Width :
lineSize.Height + childSize.Height > availableSize.Height;
if (isWrapped)
{
maxSize.Width = isHorizontal ? Math.Max(lineSize.Width, maxSize.Width) : maxSize.Width + lineSize.Width;
maxSize.Height = isHorizontal ? maxSize.Height + lineSize.Height : Math.Max(lineSize.Height, maxSize.Height);
lineSize = childSize;
isWrapped = isHorizontal ?
childSize.Width > availableSize.Width :
childSize.Height > availableSize.Height;
if (isWrapped)
{
maxSize.Width = isHorizontal ? Math.Max(childSize.Width, maxSize.Width) : maxSize.Width + childSize.Width;
maxSize.Height = isHorizontal ? maxSize.Height + childSize.Height : Math.Max(childSize.Height, maxSize.Height);
lineSize = default(Size);
}
}
else
{
lineSize.Width = isHorizontal ? lineSize.Width + childSize.Width : Math.Max(childSize.Width, lineSize.Width);
lineSize.Height = isHorizontal ? Math.Max(childSize.Height, lineSize.Height) : lineSize.Height + childSize.Height;
}
x = isHorizontal ? lineSize.Width : maxSize.Width;
y = isHorizontal ? maxSize.Height : lineSize.Height;
}
maxSize.Width = isHorizontal ? Math.Max(lineSize.Width, maxSize.Width) : maxSize.Width + lineSize.Width;
maxSize.Height = isHorizontal ? maxSize.Height + lineSize.Height : Math.Max(lineSize.Height, maxSize.Height);
this.extent = maxSize;
this.viewport = availableSize;
generator.CleanupChildren();
generator.Dispose();
if (this.ScrollOwner != null)
this.ScrollOwner.InvalidateScrollInfo();
return maxSize;
}