internal MeasureOutput measure(MeasureOutput measureOutput, float width)
{
if (!IsMeasureDefined)
{
throw new Exception("Measure function isn't defined!");
}
return(Assertions.assertNotNull(mMeasureFunction)(this, width));
}
internal MeasureOutput measure(MeasureOutput measureOutput, float width, CSSMeasureMode widthMode, float height, CSSMeasureMode heightMode)
{
if (!IsMeasureDefined)
{
throw new Exception("Measure function isn't defined!");
}
return(Assertions.assertNotNull(mMeasureFunction)(this, width, widthMode, height, heightMode));
}
private void TestMeasureFuncWithDestructorForGC(CSSNode parent)
{
CSSNode child = new CSSNode();
parent.Insert(0, child);
child.SetMeasureFunction((_, width, widthMode, height, heightMode) => {
return(MeasureOutput.Make(120, 130));
});
}
public void TestMeasureFuncWithChild()
{
CSSNode node = new CSSNode();
CSSNode child = new CSSNode();
node.Insert(0, child);
node.SetMeasureFunction((_, width, widthMode, height, heightMode) => {
return(MeasureOutput.Make(100, 150));
});
}
public void TestMeasureFuncWithFloat()
{
CSSNode node = new CSSNode();
node.SetMeasureFunction((_, width, widthMode, height, heightMode) => {
return(MeasureOutput.Make(123.4f, 81.7f));
});
node.CalculateLayout();
Assert.AreEqual(123, node.LayoutWidth);
Assert.AreEqual(81, node.LayoutHeight);
}
public void TestMeasureFunc()
{
CSSNode node = new CSSNode();
node.SetMeasureFunction((_, width, widthMode, height, heightMode) => {
return(MeasureOutput.Make(100, 150));
});
node.CalculateLayout();
Assert.AreEqual(100, node.LayoutWidth);
Assert.AreEqual(150, node.LayoutHeight);
}
public void SetMeasureFunction(MeasureFunction measureFunction)
{
_measureFunction = measureFunction;
if (measureFunction != null)
{
_cssMeasureFunc = MeasureInternal;
_measureOutput = new MeasureOutput();
}
else
{
_cssMeasureFunc = null;
_measureOutput = null;
}
Native.CSSNodeSetMeasureFunc(_cssNode, _cssMeasureFunc);
}
private CSSSize MeasureInternal(
IntPtr node,
float width,
CSSMeasureMode widthMode,
float height,
CSSMeasureMode heightMode)
{
if (_measureFunction == null)
{
throw new InvalidOperationException("Measure function is not defined.");
}
long output = _measureFunction(this, width, widthMode, height, heightMode);
return(new CSSSize {
width = MeasureOutput.GetWidth(output), height = MeasureOutput.GetHeight(output)
});
}
private CSSSize MeasureInternal(
IntPtr context,
float width,
CSSMeasureMode widthMode,
float height,
CSSMeasureMode heightMode)
{
if (_measureFunction == null)
{
throw new InvalidOperationException("Measure function is not defined.");
}
var measureResult = new MeasureOutput();
_measureFunction(this, width, widthMode, height, heightMode, measureResult);
return(new CSSSize {
width = measureResult.Width, height = measureResult.Height
});
}