sustaining_gazes/gui/OpenFaceDemo/UI_items/AxesBorder.cs

181 lines
6.6 KiB
C#
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2016-10-05 11:35:44 +00:00
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
namespace OpenFaceDemo
{
class AxesBorder : Border
{
public double MinVal { get; set; }
public double MaxVal { get; set; }
public int NumVertGrid { get; set; }
public bool ShowXLabel { get; set; }
public bool ShowYLabel { get; set; }
public string RangeLabel { get; set; }
public bool XTicks { get; set; }
public Orientation Orientation { get; set; }
public AxesBorder()
{
MinVal = -1;
MaxVal = 1;
NumVertGrid = 5;
ShowXLabel = true;
ShowYLabel = true;
XTicks = true;
}
protected override void OnRender(DrawingContext dc)
{
base.OnRender(dc);
if (Orientation == System.Windows.Controls.Orientation.Horizontal)
RenderHorizontal(dc);
else
RenderVertical(dc);
}
private void RenderHorizontal(DrawingContext dc)
{
Pen p = new Pen(Brushes.Black, 1);
Pen q = new Pen(Brushes.LightGray, 1);
double padLeft = Padding.Left;
double padBottom = Padding.Bottom - 2 + 10;
double padTop = Padding.Top;
double padRight = Padding.Right;
// Draw horizontal gridlines
double step_size = (MaxVal - MinVal)/(NumVertGrid - 1.0);
for (int i = 0; i < NumVertGrid; i++)
{
double y = (int)(padTop + ((NumVertGrid - 1.0) - i) * ((ActualHeight - padBottom - padTop) / (NumVertGrid - 1.0))) - 0.5;
double y_val = MinVal + i * step_size;
if (y_val != 0)
dc.DrawLine(q, new Point(padLeft, y), new Point(ActualWidth - padRight, y));
else
dc.DrawLine(p, new Point(padLeft, y), new Point(ActualWidth - padRight, y));
dc.DrawLine(p, new Point(padLeft - 10, y), new Point(padLeft, y));
//var t = FT((i / 2.0 - 1).ToString("0.0"), 10);
var t = FT((MinVal + i * step_size).ToString("0.0"), 10);
dc.DrawText(t, new Point(padLeft - t.Width - 12, y - t.Height / 2));
}
// Draw vertical gridlines
for (int i = 0; i < 11; i++)
{
double x = (int)(padLeft + (10 - i) * ((ActualWidth - padLeft - padRight) / 10.0)) - 0.5;
if (i < 10)
dc.DrawLine(q, new Point(x, ActualHeight - padBottom), new Point(x, padTop));
dc.DrawLine(p, new Point(x, ActualHeight - padBottom + 10), new Point(x, ActualHeight - padBottom));
if(XTicks)
{
var t = FT(i.ToString(), 10);
dc.DrawText(t, new Point(x - t.Width / 2, ActualHeight - padBottom + t.Height));
}
}
// Draw y axis
dc.DrawLine(p, new Point(((int)padLeft) - 0.5, padTop), new Point(((int)padLeft) - 0.5, ActualHeight - padBottom));
// Draw x axis
//dc.DrawLine(p, new Point(padLeft, ((int)((ActualHeight - padBottom - padTop) / 2 + padTop)) - 0.5), new Point(ActualWidth - padRight, ((int)((ActualHeight - padBottom - padTop) / 2 + padTop)) - 0.5));
// Draw x axis label
if(ShowXLabel)
{
FormattedText ft = FT("History (seconds)", 20);
dc.DrawText(ft, new Point(padLeft + (ActualWidth - padLeft - padRight) / 2 - ft.Width / 2, ActualHeight - ft.Height));
}
// Draw y axis label
if(ShowYLabel)
{
FormattedText ft = FT(RangeLabel, 20);
dc.PushTransform(new RotateTransform(-90));
dc.DrawText(ft, new Point(-ft.Width - ActualHeight / 2 + ft.Width / 2, 0));
}
}
private void RenderVertical(DrawingContext dc)
{
Pen p = new Pen(Brushes.Black, 1);
Pen q = new Pen(Brushes.LightGray, 1);
double padLeft = Padding.Left;
double padBottom = Padding.Bottom - 2 + 10;
double padTop = Padding.Top;
double padRight = Padding.Right;
// Draw horizontal gridlines
for (int i = 0; i < 11; i++)
{
double y = (int)(padTop + (10 - i) * ((ActualHeight - padBottom - padTop) / 10.0)) - 0.5;
if (i > 0)
dc.DrawLine(q, new Point(padLeft, y), new Point(ActualWidth - padRight, y));
dc.DrawLine(p, new Point(padLeft - 10, y), new Point(padLeft, y));
var t = FT(i.ToString(), 10);
dc.DrawText(t, new Point(padLeft - t.Width - 12, y - t.Height / 2));
}
// Draw vertical gridlines
for (int i = 0; i < 5; i++)
{
double x = (int)(padLeft + (4 - i) * ((ActualWidth - padLeft - padRight) / 4.0)) - 0.5;
if (i < 10)
dc.DrawLine(q, new Point(x, ActualHeight - padBottom), new Point(x, padTop));
dc.DrawLine(p, new Point(x, ActualHeight - padBottom + 10), new Point(x, ActualHeight - padBottom));
var t = FT(((4-i) / 2.0 - 1).ToString("0.0"), 10);
dc.DrawText(t, new Point(x - t.Width / 2, ActualHeight - padBottom + t.Height));
}
// Draw y axis
dc.DrawLine(p, new Point(((int)((ActualWidth - padRight - padLeft) / 2 + padLeft)) - 0.5, padTop), new Point(((int)((ActualWidth - padRight - padLeft) / 2 + padLeft)) - 0.5, ActualHeight - padBottom));
// Draw x axis
dc.DrawLine(p, new Point(padLeft, ((int)((ActualHeight - padBottom))) - 0.5), new Point(ActualWidth - padRight, ((int)((ActualHeight - padBottom))) - 0.5));
// Draw x axis label
FormattedText ft = FT(RangeLabel, 20);
dc.DrawText(ft, new Point(padLeft + (ActualWidth - padLeft - padRight) / 2 - ft.Width / 2, ActualHeight - ft.Height));
// Draw y axis label
ft = FT("History (seconds)", 20);
dc.PushTransform(new RotateTransform(-90));
dc.DrawText(ft, new Point(-ft.Width - ActualHeight / 2 + ft.Width / 2, 0));
}
private FormattedText FT(string text, int size)
{
return new FormattedText(text, CultureInfo.CurrentCulture, System.Windows.FlowDirection.LeftToRight, new Typeface("Verdana"), size, Brushes.Black);
}
}
}