private void SetTextBlockProperty(ScaleLabelDirection pDirection, TextBlock tb, int i, double unit)
{
double left = 0, top = 0;
switch (pDirection)
{
case ScaleLabelDirection.Left:
tb.RenderTransform = new TranslateTransform {
Y = -(tb.ActualHeight / 2)
};
left = _scaleCanvas.ActualWidth - tb.ActualWidth - GetSpan();
top = i * unit;
Canvas.SetLeft(tb, left);
Canvas.SetTop(tb, top);
break;
case ScaleLabelDirection.Top:
tb.RenderTransform = new TranslateTransform {
X = -(tb.ActualWidth / 2)
};
left = i * unit;
top = 0 - GetSpan();
Canvas.SetTop(tb, top);
Canvas.SetLeft(tb, left);
break;
case ScaleLabelDirection.Right:
tb.RenderTransform = new TranslateTransform {
Y = -(tb.ActualHeight / 2)
};
left = 0 + GetSpan();
top = i * unit;
Canvas.SetLeft(tb, left);
Canvas.SetTop(tb, top);
break;
case ScaleLabelDirection.Bottom:
tb.RenderTransform = new TranslateTransform {
X = -(tb.ActualWidth / 2)
};
left = i * unit;
top = 0 + GetSpan();
Canvas.SetTop(tb, top);
Canvas.SetLeft(tb, left);
break;
}
if (LabelStyle != null)
{
tb.Style = LabelStyle;
}
else
{
var bind = new Binding("Foreground")
{
Source = this
};
tb.SetBinding(TextBlock.ForegroundProperty, bind);
}
tb.Tag = new[] { left, top };
}
/// <summary>
///
/// </summary>
/// <param name="pDirection"></param>
/// <param name="vunit"></param>
/// <param name="unit"></param>
private void GetUnit(ScaleLabelDirection pDirection, out double vunit, out double unit)
{
vunit = (EndValue - BeginValue) / (ScaleLabelCount - 1);
if (pDirection == ScaleLabelDirection.Top || pDirection == ScaleLabelDirection.Bottom)
{
unit = _rangePanel.ActualWidth / (ScaleLabelCount - 1);
}
else
{
unit = _rangePanel.ActualHeight / (ScaleLabelCount - 1);
}
}
/// <summary>
/// 添加刻度的线
/// </summary>
/// <param name="pDirection"></param>
/// <param name="i"></param>
/// <param name="unit"></param>
private void SetLineProperty(ScaleLabelDirection pDirection, int i, double unit)
{
switch (pDirection)
{
case ScaleLabelDirection.Left:
SetLeftLineProperty(i, unit);
break;
case ScaleLabelDirection.Top:
SetTopLineProperty(i, unit);
break;
case ScaleLabelDirection.Right:
SetRightLineProperty(i, unit);
break;
case ScaleLabelDirection.Bottom:
SetBottomLineProperty(i, unit);
break;
}
}
private void UpdateScales2(ScaleLabelDirection pDirection, IList <string> valStrs, double unit)
{
if (_scaleCanvas.Children.Count == 0)
{
for (int i = 0; i < ScaleLabelCount; i++)
{
var tb = new TextBlock {
Text = valStrs[i], FontSize = 11
};
_scaleCanvas.Children.Add(tb);
SetLineProperty(pDirection, i, unit);
}
}
else //因为wpf中控件没有render获取不到它的宽和高，所以每次刻度长度变化时有个小bug @?
{
var tl = new List <TextBlock>();
for (int i = 0; i < _scaleCanvas.Children.Count; i++)
{
TextBlock tb = _scaleCanvas.Children[i] as TextBlock;
if (tb != null)
{
tl.Add(tb);
}
}
_scaleCanvas.Children.Clear();
for (int i = 0; i < ScaleLabelCount; i++)
{
tl[i].Text = valStrs[i];
_scaleCanvas.Children.Add(tl[i]);
SetLineProperty(pDirection, i, unit);
SetTextBlockProperty(Direction, tl[i], i, GetUnitSize());
}
}
}
