public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
double scaleFactor = 0.0;
if (!String.IsNullOrEmpty((string)value))
{
double diagonalScreenSize = System.Convert.ToDouble(value, culture);
Point scale = DipHelper.GetScreenIndependentScaleFactor(diagonalScreenSize);
Point physicalDpi = DipHelper.GetPhysicalDpi(diagonalScreenSize);
string sParameter = (string)parameter;
if (sParameter == "ScaleY")
{
scaleFactor = scale.Y;
}
else if (sParameter == "ScaleX")
{
scaleFactor = scale.X;
}
else if (sParameter == "PhysicalDpi")
{
scaleFactor = physicalDpi.X;
}
}
return(scaleFactor);
}
private void Page_Loaded(object sender, RoutedEventArgs e)
{
Point systemDpi = DipHelper.GetSystemDpi();
tbSystemDpiValueText.Text = systemDpi.X.ToString();
sScreenSize.Value = DipHelper.ScreenSize;
}
public void setruler(double x, double y)
{
//主标尺系统
double mainchip = DipHelper.GetRulerMileage(x);
//显示隧道主洞桩号
hruler.Chip = mainchip;
int i = (int)Math.Round(mainchip);
string st = i.ToString();
string st1 = st.Substring(0, st.Length - 3);
if ((st1 == null) || (st1 == ""))
{
st1 = "0";
}
string st2 = st.Substring(st.Length - 3);
if (partchar == '左')
{
st = "ZK" + st1 + "+" + st2;
}
else
{
st = "YK" + st1 + "+" + st2;
}
MapCoordsZH.Text = "桩号：" + st;
//显示沿桩衬砌
mili_ruler.Chip = mainchip;
//显示高程信息
double heightchip = DipHelper.GetRulerAltitude(y);
vruler.Chip = heightchip;
st = Math.Round(heightchip).ToString();
MapCoordsGC.Text = "高程：" + st + "米";
//显示斜井桩号
int pile = DipHelper.GetRulerXJMileage(Convert.ToInt32(x));
xjruler.Chip = x;
string temp;
if (x < 3250)
{
temp = "BX";
}
else
{
temp = "LX";
}
if (pile >= 0)
{
st = pile.ToString().PadLeft(4, '0');
st2 = st.Substring(st.Length - 3);
st = temp + "K" + st[0] + "+" + st2;
MapCoordsXJ.Text = "斜井桩号：" + st;
}
}
/// <summary>
/// Measures an instance during the first layout pass prior to arranging it.
/// </summary>
/// <param name="availableSize">A maximum Size to not exceed.</param>
/// <returns>The maximum Size for the instance.</returns>
protected override Size MeasureOverride(Size availableSize)
{
Size desiredSize;
if (Unit == Unit.Cm)
{
desiredSize = new Size(DipHelper.CmToDip(Length), this.Height);
}
else
{
desiredSize = new Size(DipHelper.InchToDip(Length), this.Height);
}
return(desiredSize);
}
public void UsesDipMultiplier()
{
double dipMultiplier = DipHelper.GetDipMultiplier();
double input = 10;
double expectedOutput = input * dipMultiplier;
var gridUnitExtension = new GridUnitExtension(input.ToString())
{
MultiplyWithDip = true,
GridCellSize = 1 // This must be 1, otherwise the result will be multiplied
}; // by 4 (default).
double result = (double)gridUnitExtension.ProvideValue(MockedServiceProvider.Default);
Assert.Equal(expectedOutput, result);
}
/// <summary>
/// Participates in rendering operations.
/// </summary>
/// <param name="drawingContext">The drawing instructions for a specific element. This context is provided to the layout system.</param>
protected override void OnRender(System.Windows.Media.DrawingContext drawingContext)
{
base.OnRender(drawingContext);
double xDest;
if (Unit == Unit.Cm)
{
xDest = DipHelper.CmToDip(Length);
}
else
{
xDest = DipHelper.InchToDip(Length);
}
drawingContext.DrawRectangle(null, _pBorder, new Rect(new Point(0.0, 0.0), new Point(xDest, this.Height)));
for (double dUnit = 0.0; dUnit <= Length; dUnit++)
{
double d;
if (Unit == Unit.Cm)
{
d = DipHelper.CmToDip(dUnit);
if (dUnit < Length)
{
for (int i = 1; i <= 9; i++)
{
if (i != 5)
{
double dMm = DipHelper.CmToDip(dUnit + 0.1 * i);
drawingContext.DrawLine(_pThin, new Point(dMm, this.Height), new Point(dMm, this.Height - _segmentHeight / 3.0));
}
}
double dMiddle = DipHelper.CmToDip(dUnit + 0.5);
drawingContext.DrawLine(_p, new Point(dMiddle, this.Height), new Point(dMiddle, this.Height - _segmentHeight * 2.0 / 3.0));
}
}
else
{
d = DipHelper.InchToDip(dUnit);
if (dUnit < Length)
{
double dQuarter = DipHelper.InchToDip(dUnit + 0.25);
drawingContext.DrawLine(_pThin, new Point(dQuarter, this.Height), new Point(dQuarter, this.Height - _segmentHeight / 3.0));
double dMiddle = DipHelper.InchToDip(dUnit + 0.5);
drawingContext.DrawLine(_p, new Point(dMiddle, this.Height), new Point(dMiddle, this.Height - 0.5 * _segmentHeight * 2.0 / 3.0));
double d3Quarter = DipHelper.InchToDip(dUnit + 0.75);
drawingContext.DrawLine(_pThin, new Point(d3Quarter, this.Height), new Point(d3Quarter, this.Height - 0.25 * _segmentHeight / 3.0));
}
}
drawingContext.DrawLine(_p, new Point(d, this.Height), new Point(d, this.Height - _segmentHeight));
if ((dUnit != 0.0) && (dUnit < Length))
{
FormattedText ft = new FormattedText(
dUnit.ToString(CultureInfo.CurrentCulture),
CultureInfo.CurrentCulture,
FlowDirection.LeftToRight,
new Typeface("Arial"),
DipHelper.PtToDip(10.0),
Brushes.Black);
ft.SetFontWeight(FontWeights.Regular);
ft.TextAlignment = TextAlignment.Center;
drawingContext.DrawText(ft, new Point(d, this.Height - _segmentHeight - ft.Height));
}
}
}
