// cl 18.
public static void Clear(DrawingArgs dr, Gdk.Color color)
{
var rect = dr.Rectangle;
var filled = true;
dr.GC.RgbFgColor = color;
dr.Window.DrawRectangle(dr.GC, filled, rect);
}
public static void DrawYellowRightTriangle(DrawingArgs dr, int x, int y, int w, int h)
{
var points = new Point[]{
new Point(x, y),
new Point(x+w, y+h/2),
new Point(x, h)};
DrawPolygon(dr, new Gdk.Color(255, 255, 0), points);
DrawPolygonBorder(dr, new Gdk.Color(0, 0, 0), points);
}
public static void DrawMetric(DrawingArgs dr, Gdk.Color color, int lineWidth, int space, int longIndex, int longHeight)
{
var bounds = dr.Rectangle;
var start = 0;
var end = bounds.Width;
int i = 0;
int y = 0;
for (int x = start; x < end; x += space) {
bool isLong = (i % longIndex) == 0;
if (isLong) DrawMetricLongLine(dr, color, lineWidth, x, y, longHeight);
else DrawMetricShortLine(dr, color, lineWidth, x, y, longHeight);
i++;
}
}
private static void DrawPolygonBorder(DrawingArgs dr, Gdk.Color color, Point[] points)
{
dr.GC.RgbFgColor = color;
dr.Window.DrawPolygon(dr.GC, false, points);
}
private static void DrawMetricShortLine(DrawingArgs dr, Gdk.Color color, int lineWidth, int x, int y, int longHeight)
{
DrawLine(dr, color, lineWidth, x, y, x, y + longHeight/2);
}
public static void DrawRectangle(DrawingArgs dr, Gdk.Color color, Gdk.Rectangle rect)
{
dr.GC.RgbFgColor = color;
dr.Window.DrawRectangle(dr.GC, true, rect);
}
// cl 18.
public static void DrawLine(DrawingArgs dr, Gdk.Color color, int width, int x1, int y1, int x2, int y2)
{
dr.GC.RgbFgColor = color;
dr.GC.SetLineAttributes(width, LineStyle.Solid, CapStyle.Butt, JoinStyle.Round);
dr.Window.DrawLine(dr.GC, x1, y1, x2, y2);
}