public void DrawLabel(int position, string label)
{
var layout = new Pango.Layout(this.PangoContext);
layout.FontDescription = FontDescription.FromString("Tahoma 16");
layout.SetMarkup(label);
int width, height;
layout.GetPixelSize(out width, out height);
if (width != 0 && height != 0)
{
_labelPixmap = new Pixmap(GdkWindow, width, height, -1);
CalculateXandY(position, width, height);
_labelPixmap.DrawDrawable(_gc, _pixmap, _labelX, _labelY, 0, 0,
width, height);
_labelPixmap.DrawLayout(_gc, 0, 0, layout);
QueueDraw();
}
}
public void DrawChart(object obj, SizeAllocatedArgs args)
{
int width = args.Allocation.Width;
int height = args.Allocation.Height;
int size = Math.Min(width, height);
//If this is true, then we don't need to update.
if (size == currentSize)
{
return;
}
currentSize = size;
currentSize = size;
int chartRadius = size;
int labelRadius = 0;
color = new Pixmap(MainWindow.main.GdkWindow, size, size);
mask = new Pixmap(MainWindow.main.GdkWindow, size, size);
Gdk.GC visible = new Gdk.GC(mask)
{
RgbFgColor = new Color(255, 255, 255)
};
Gdk.GC invisible = new Gdk.GC(mask)
{
RgbFgColor = new Color(0, 0, 0)
};
Gdk.GC white = new Gdk.GC(color)
{
RgbFgColor = new Color(255, 255, 255)
}; // for marking the mask.
Gdk.GC lightGrey = new Gdk.GC(color)
{
RgbFgColor = new Color(200, 200, 200)
}; // for the axes
Gdk.GC grey = new Gdk.GC(color)
{
RgbFgColor = new Color(125, 125, 125)
}; // for the axis markings
Gdk.GC darkGrey = new Gdk.GC(color)
{
RgbFgColor = new Color(100, 100, 100)
}; // for the axis labels
Gdk.GC[] wrapperColors =
{
new Gdk.GC(color)
{
RgbFgColor = new Gdk.Color(170, 140, 0)
}, //Regular
new Gdk.GC(color)
{
RgbFgColor = new Color(0, 0, 200)
}, //Tinker
new Gdk.GC(color)
{
RgbFgColor = new Color(0, 150, 0)
}, //Master
new Gdk.GC(color)
{
RgbFgColor = new Color(0, 0, 0)
}, //Breaker
};
color.DrawRectangle(white, true, new Rectangle(0, 0, size, size));
mask.DrawRectangle(invisible, true, new Rectangle(0, 0, size, size));
//The eight directions in which vertices lie
Vector2[] directions =
{
new Vector2(0, -1),
new Vector2(Math.Sqrt(2) / 2, -Math.Sqrt(2) / 2),
new Vector2(1, 0),
new Vector2(Math.Sqrt(2) / 2, Math.Sqrt(2) / 2),
new Vector2(0, 1),
new Vector2(-Math.Sqrt(2) / 2, Math.Sqrt(2) / 2),
new Vector2(-1, 0),
new Vector2(-Math.Sqrt(2) / 2, -Math.Sqrt(2) / 2)
};
IntVector2 center = new IntVector2(size / 2, size / 2);
//Compute magnitudes
int[] indexMap = { 0, 1, 5, 3, 7, 0, 4, 6, 2 }; //old[0] -> new[1], old[1] -> new[5] etc.
int[] reverseIndexMap = { 5, 1, 8, 3, 6, 2, 7, 4 }; //old[0] -> new[1], old[1] -> new[5] etc.
float[] magnitudes = new float[8]; //Magnitudes of the positions of the vertices
float[,] fractions = new float[8, 3]; //Fractional contribution of each wrapper of each rating classification
for (int i = 1; i <= 8; i++)
{
int j = indexMap[i];
magnitudes[j] = values[4, i] > 0 ? values[4, i] : 0;
if (o_vals[4, i] != 0)
{
fractions[j, 0] = (float)o_vals[0, i] / o_vals[4, i];
fractions[j, 1] = (float)(o_vals[0, i] + o_vals[1, i]) / o_vals[4, i];
fractions[j, 2] = (float)(o_vals[0, i] + o_vals[1, i] + o_vals[2, i]) / o_vals[4, i];
}
}
float greatestMagnitude = 0;
for (int i = 0; i < 8; i++)
{
if (magnitudes[i] > greatestMagnitude)
{
greatestMagnitude = magnitudes[i];
}
}
if (greatestMagnitude < 0.01)
{
return;
}
//Determing text radius and preload labels;
Pango.Layout[] labels = new Pango.Layout[8];
IntVector2[] labelSizes = new IntVector2[8];
for (int i = 0; i < 8; i++)
{
//Label
labels[i] = new Pango.Layout(PangoContext)
{
Alignment = Pango.Alignment.Center
};
if (multipliers == null)
{
labels[i].SetText(Ratings.symbols[reverseIndexMap[i]]);
}
else
{
labels[i].SetMarkup(Ratings.symbols[reverseIndexMap[i]] + "\n<small>×" + multipliers[reverseIndexMap[i]].ToString("0.0") + "</small>");
}
labels[i].GetSize(out int labelWidth, out int labelHeight);
labelSizes[i] = new IntVector2(labelWidth, labelHeight) / Pango.Scale.PangoScale;
int thisLabelRadius = Math.Max(labelSizes[i].x, labelSizes[i].y);
if (thisLabelRadius > labelRadius)
{
labelRadius = thisLabelRadius;
chartRadius = size / 2 - labelRadius * 2;
}
}
for (int i = 0; i < 8; i++)
{
IntVector2 textPoint = directions[i] * (chartRadius + labelRadius) + (Vector2)center - (Vector2)labelSizes[i] / 2;
color.DrawLayout(darkGrey, textPoint.x, textPoint.y, labels[i]);
mask.DrawLayout(visible, textPoint.x, textPoint.y, labels[i]);
//Line
IntVector2 endPoint = (directions[i] * chartRadius) + (Vector2)center;
color.DrawLine(lightGrey, center.x, center.y, endPoint.x, endPoint.y);
mask.DrawLine(visible, center.x, center.y, endPoint.x, endPoint.y);
}
//Draw circles and axis markings
float theoreticalPtInterval = (size / 6 + 20) / 2;
float theoreticalRatingInterval = theoreticalPtInterval / chartRadius * greatestMagnitude; //(between 20pt markings)
int ratingInterval = (int)Math.Round(theoreticalRatingInterval); //Round it off for neatness
float ptInterval = ratingInterval / greatestMagnitude * chartRadius; //Now what's the pt interval for that?
for (int i = 1; ptInterval * i < chartRadius; i++)
{
//Circle
int radius = (int)(ptInterval * i);
color.DrawArc(lightGrey, false,
center.x - radius, center.y - radius,
radius * 2, radius * 2,
0, 23040); //Angles are in 1/64th degrees, 23040 = 360*64 = full circle.
mask.DrawArc(visible, false,
center.x - radius, center.y - radius,
radius * 2, radius * 2,
0, 23040);
//Axis marking
Pango.Layout mark = new Pango.Layout(PangoContext);
mark.SetText("" + ratingInterval * i);
mark.GetSize(out int markWidth, out int markHeight);
IntVector2 markSize = new IntVector2(markWidth, markHeight) / Pango.Scale.PangoScale;
IntVector2 markCenter = (Vector2)center + directions[2] * ptInterval * i;
mask.DrawArc(invisible, true, markCenter.x - markSize.x / 2, markCenter.y - markSize.y / 2,
markSize.x, markSize.y, 0, 23040); //Clears a circular space for the mark
color.DrawLayout(grey, markCenter.x - markSize.x / 2, markCenter.y - markSize.y / 2, mark); //Actually
mask.DrawLayout(visible, markCenter.x - markSize.x / 2, markCenter.y - markSize.y / 2, mark); //draw the mark.
}
//Compute vertices
IntVector2[,] vertices = new IntVector2[4, 8];
for (int i = 0; i < 8; i++)
{
for (int j = 0; j < 3; j++)
{
vertices[j, i] = directions[i] * (chartRadius / greatestMagnitude) * magnitudes[i] * fractions[i, j] + (Vector2)center;
}
vertices[3, i] = directions[i] * (chartRadius / greatestMagnitude) * magnitudes[i] + (Vector2)center;
}
//Bump vertices by a pixel if they overlap.
bool changed = true;
while (changed)
{
changed = false;
for (int i = 3; i > 1; i--)
{
for (int j = 0; j < 8; j++)
{
if (vertices[i, j] == vertices[i - 1, j])
{
vertices[i, j] += (IntVector2)directions[j];
changed = true;
}
}
}
}
//Draw polygons
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 7; j++) //j=7 is excluded as we need to connect it to vertex 0 manually.
{
color.DrawLine(wrapperColors[i],
vertices[i, j].x, vertices[i, j].y, //This point
vertices[i, j + 1].x, vertices[i, j + 1].y); //Next point
mask.DrawLine(visible,
vertices[i, j].x, vertices[i, j].y, //This point
vertices[i, j + 1].x, vertices[i, j + 1].y); //Next point
}
color.DrawLine(wrapperColors[i],
vertices[i, 7].x, vertices[i, 7].y, //Point 7
vertices[i, 0].x, vertices[i, 0].y); //Point 0
mask.DrawLine(visible,
vertices[i, 7].x, vertices[i, 7].y, //Point 7
vertices[i, 0].x, vertices[i, 0].y); //Point 0
}
if (metamultipliers != null)
{
int currentY = size - 5;
for (int i = 3; i >= 0; i--)
{
Pango.Layout label = new Pango.Layout(PangoContext)
{
Alignment = Pango.Alignment.Center
};
label.SetMarkup("<small>x" + metamultipliers[i].ToString("0.0") + "</small>");
label.GetSize(out int labelWidth, out int labelHeight);
labelWidth = (int)(labelWidth / Pango.Scale.PangoScale);
labelHeight = (int)(labelHeight / Pango.Scale.PangoScale);
currentY -= labelHeight;
color.DrawLayout(wrapperColors[i], size - labelWidth - 5, currentY, label);
mask.DrawLayout(visible, size - labelWidth - 5, currentY, label);
}
}
SetFromPixmap(color, mask);
}
public void DrawLabel(int position, string label)
{
var layout = new Pango.Layout(this.PangoContext);
layout.FontDescription = FontDescription.FromString ("Tahoma 16");
layout.SetMarkup(label);
int width, height;
layout.GetPixelSize(out width, out height);
if (width != 0 && height != 0)
{
_labelPixmap = new Pixmap(GdkWindow, width, height, -1);
CalculateXandY(position, width, height);
_labelPixmap.DrawDrawable(_gc, _pixmap, _labelX, _labelY, 0, 0,
width, height);
_labelPixmap.DrawLayout(_gc, 0, 0, layout);
QueueDraw();
}
}
