protected override void OnMeasure(MeasureSpec widthSpec, MeasureSpec heightSpec, Graphics g, Font font, Style style)
{
MeasureSpec leftWidth = null;
MeasureSpec rightWidth = null;
if (widthSpec.Mode == MeasureSpecMode.Fixed || widthSpec.Mode == MeasureSpecMode.AtMost)
{
leftWidth = MeasureSpec.MakeFixed(widthSpec.Size * 0.8f);
rightWidth = MeasureSpec.MakeFixed(widthSpec.Size * 0.2f);
}
else if (widthSpec.Mode == MeasureSpecMode.Unspecified)
{
leftWidth = widthSpec;
rightWidth = widthSpec;
}
X.Measure(leftWidth, heightSpec, g, font, style);
Pow.Measure(rightWidth, heightSpec, g, font, style);
SetDesiredSize(
X.DesiredWidth + Pow.DesiredWidth,
Pow.DesiredHeight + X.FindMaxTop() + X.FindMaxBottom() - 10);
}
private void OnMeasureDivide(MeasureSpec widthSpec, MeasureSpec heightSpec, Graphics g, Font font, Style style)
{
MeasureSpec leftHeight = null;
MeasureSpec rightHeight = null;
if (heightSpec.Mode == MeasureSpecMode.Fixed)
{
leftHeight = MeasureSpec.MakeFixed((float)((heightSpec.Size - 2) / 2));
rightHeight = MeasureSpec.MakeFixed((float)((heightSpec.Size - 2) / 2));
}
else if (heightSpec.Mode == MeasureSpecMode.AtMost)
{
leftHeight = MeasureSpec.MakeAtMost((float)((heightSpec.Size - 2) / 2));
rightHeight = MeasureSpec.MakeAtMost((float)((heightSpec.Size - 2) / 2));
}
else if (heightSpec.Mode == MeasureSpecMode.Unspecified)
{
leftHeight = heightSpec;
rightHeight = heightSpec;
}
Left.Measure(widthSpec, leftHeight, g, font, style);
Right.Measure(widthSpec, rightHeight, g, font, style);
Operator.Measure(MeasureSpec.MakeFixed(Math.Max(Left.DesiredWidth, Right.DesiredWidth) + 10), MeasureSpec.MakeFixed(2), g, font, style);
SetDesiredSize(Math.Max(Left.DesiredWidth, Right.DesiredWidth) + 10, Left.DesiredHeight + Right.DesiredHeight + Operator.DesiredHeight);
}
protected override void OnMeasure(MeasureSpec widthSpec, MeasureSpec heightSpec, Graphics g, Font font, Style style)
{
size = g.MeasureString(")", style.BoldFont);
MeasureSpec width = null;
if (widthSpec.Mode == MeasureSpecMode.Fixed)
{
width = MeasureSpec.MakeFixed(widthSpec.Size - size.Width * 2);
}
else if (widthSpec.Mode == MeasureSpecMode.AtMost)
{
width = MeasureSpec.MakeFixed(widthSpec.Size - size.Width * 2);
}
else if (widthSpec.Mode == MeasureSpecMode.Unspecified)
{
width = widthSpec;
}
Body.Measure(width, heightSpec, g, font, style);
SetDesiredSize(
(float)(widthSpec.Mode == MeasureSpecMode.Fixed ? widthSpec.Size : Body.DesiredWidth + size.Width * 2),
(float)(Math.Max(size.Height / 2, Body.FindMaxTop()) + Math.Max(size.Height / 2, Body.FindMaxBottom())));
}
protected override void OnMeasure(MeasureSpec widthSpec, MeasureSpec heightSpec, Graphics g, Font font, Style style)
{
MeasureSpec leftWidth = null;
MeasureSpec rightWidth = null;
if (widthSpec.Mode == MeasureSpecMode.Fixed || widthSpec.Mode == MeasureSpecMode.AtMost)
{
leftWidth = MeasureSpec.MakeFixed((widthSpec.Size - SymbolWidth) * 0.2f);
rightWidth = MeasureSpec.MakeFixed((widthSpec.Size - SymbolWidth) * 0.8f);
}
else if (widthSpec.Mode == MeasureSpecMode.Unspecified)
{
leftWidth = widthSpec;
rightWidth = widthSpec;
}
if (Root != null)
{
Root.Measure(leftWidth, heightSpec, g, font, style);
}
X.Measure(rightWidth, heightSpec, g, font, style);
SetDesiredSize(
(Root == null ? 0 : Root.DesiredWidth) + X.DesiredWidth + SymbolWidth,
2 + (Root == null ? X.DesiredHeight + SymbolHeight : Root.DesiredHeight + X.DesiredHeight - RootOverlap));
}
private void OnMeasureHorizontal(MeasureSpec widthSpec, MeasureSpec heightSpec, Graphics g, Font font, Style style)
{
Operator.Measure(MeasureSpec.MakeUnspecified(), MeasureSpec.MakeUnspecified(), g, font, style);
ActualOperator.Measure(MeasureSpec.MakeUnspecified(), MeasureSpec.MakeUnspecified(), g, font, style);
MeasureSpec leftWidth = null;
MeasureSpec rightWidth = null;
if (widthSpec.Mode == MeasureSpecMode.Fixed)
{
leftWidth = MeasureSpec.MakeFixed((float)((widthSpec.Size - Operator.DesiredWidth) / 2));
rightWidth = MeasureSpec.MakeFixed((float)((widthSpec.Size - Operator.DesiredWidth) / 2));
}
else if (widthSpec.Mode == MeasureSpecMode.AtMost)
{
leftWidth = MeasureSpec.MakeAtMost((float)((widthSpec.Size - Operator.DesiredWidth) / 2));
rightWidth = MeasureSpec.MakeAtMost((float)((widthSpec.Size - Operator.DesiredWidth) / 2));
}
else if (widthSpec.Mode == MeasureSpecMode.Unspecified)
{
leftWidth = widthSpec;
rightWidth = widthSpec;
}
Left.Measure(leftWidth, heightSpec, g, font, style);
Right.Measure(rightWidth, heightSpec, g, font, style);
isTwoLines = Left.DesiredWidth > 450 || Right.DesiredWidth > 450;
if (!isTwoLines)
{
SetDesiredSize(
Left.DesiredWidth + Right.DesiredWidth + GetOperatorWidth(),
Math.Max(Left.FindMaxTop(), Right.FindMaxTop()) + Math.Max(Left.FindMaxBottom(), Right.FindMaxBottom()));
}
else
{
Operator = ActualOperator;
SetDesiredSize(
Math.Max(Left.DesiredWidth, Right.DesiredWidth + GetOperatorWidth()),
Left.DesiredHeight + Math.Max(Operator.DesiredHeight, Right.DesiredHeight));
}
}
protected override void OnMeasure(MeasureSpec widthSpec, MeasureSpec heightSpec, Graphics g, Font font, Style style)
{
MeasureSpec width = null;
if (widthSpec.Mode == MeasureSpecMode.Fixed)
{
width = MeasureSpec.MakeFixed(widthSpec.Size - 10);
}
else if (widthSpec.Mode == MeasureSpecMode.AtMost)
{
width = MeasureSpec.MakeFixed(widthSpec.Size - 10);
}
else if (widthSpec.Mode == MeasureSpecMode.Unspecified)
{
width = widthSpec;
}
Operand.Measure(width, heightSpec, g, font, style);
SetDesiredSize(widthSpec.Mode == MeasureSpecMode.Fixed ? widthSpec.Size : Operand.DesiredWidth + 10, Operand.DesiredHeight);
}