protected override void OnPaint(PaintEventArgs e)
{
if (series_list.Count == 0)
{
ChartTools.renderNoDatasetMessage(e.Graphics);
return;
}
ChartRegion region_fullscreen = new ChartRegion(0, 0, this.Width, this.Height);
ChartRegion region_title; ChartRegion region_title_remainder;
region_fullscreen.splitHorizontal(title_height, out region_title, out region_title_remainder);
ChartRegion region_legend; ChartRegion region_legend_remainder;
region_title_remainder.splitHorizontal(region_title_remainder.Height - legend_height, out region_legend_remainder, out region_legend);
region_legend.Top += 10;
ChartRegion region_chart; ChartRegion region_x_axis; ChartRegion region_y1_axis; ChartRegion region_y2_axis;
region_legend_remainder.splitAxes(axis_height, out region_chart, out region_x_axis, out region_y1_axis, out region_y2_axis);
Point2D min_pri; Point2D max_pri; Point2D min_sec; Point2D max_sec;
getSeriesExtents(out min_pri, out max_pri, out min_sec, out max_sec);
// Set the axis overrides
if (!double.IsNaN(x_axis_max))
{
max_pri.x = x_axis_max;
}
if (!double.IsNaN(x_axis_max))
{
max_sec.x = x_axis_max;
}
if (!double.IsNaN(x_axis_min))
{
min_pri.x = x_axis_min;
}
if (!double.IsNaN(x_axis_min))
{
min_sec.x = x_axis_min;
}
if (!double.IsNaN(y1_axis_max))
{
max_pri.y = y1_axis_max;
}
if (!double.IsNaN(y1_axis_min))
{
min_pri.y = y1_axis_min;
}
if (!double.IsNaN(y2_axis_max))
{
max_sec.y = y2_axis_max;
}
if (!double.IsNaN(y2_axis_min))
{
min_sec.y = y2_axis_min;
}
// Check that our series are beautifully coloured
for (int i_series = 0; i_series < series_list.Count; ++i_series)
{
Series series = (Series)series_list[i_series];
if (series.color == Color.Black)
{
series.color = ChartColours.getOrderedColour(i_series);
}
}
// Draw the various bits of the chart
try
{
performPaintBackground(e.Graphics, region_chart);
performPaintTitle(e.Graphics, region_title);
performPaintLegend(e.Graphics, region_legend);
if (region_chart.Height > 0 && region_chart.Width > 0)
{
performPaintXAxis(e.Graphics, region_chart, region_x_axis, min_pri, max_pri);
performPaintY1Axis(e.Graphics, region_chart, region_y1_axis, min_pri, max_pri);
performPaintY2Axis(e.Graphics, region_chart, region_y2_axis, min_sec, max_sec);
performPaintSeries(e.Graphics, region_chart, min_pri, max_pri, min_sec, max_sec);
}
performPaintBorders(e.Graphics, region_chart);
}
catch (Exception)
{
}
}
protected override void OnPaint(PaintEventArgs e)
{
// If we have a dataset to render
if (null != dataset)
{
int datasetwidth = dataset.GetUpperBound(1) + 1;
int datasetheight = dataset.GetUpperBound(0) + 1;
int screenwidth = this.Width;
int screenheight = this.Height;
float rendersquarewidth = screenwidth / (float)datasetwidth;
float rendersquareheight = screenheight / (float)datasetheight;
// Check that the mouse is still in range
if (last_mouse_x > screenwidth)
{
last_mouse_x = screenwidth - 1;
}
if (last_mouse_y > screenheight)
{
last_mouse_y = screenheight - 1;
}
SolidBrush brush = new SolidBrush(Color.Black);
for (int i = 0; i < datasetheight; ++i)
{
for (int j = 0; j < datasetwidth; ++j)
{
if (Double.IsNaN(dataset[i, j]))
{
brush.Color = Color.Orange;
}
else if (datasetmin == dataset[i, j])
{
brush.Color = Color.Blue;
}
else if (datasetmax == dataset[i, j])
{
brush.Color = Color.Red;
}
else
{
int colorvalue = 255 - (int)(255.0 * (dataset[i, j] - datasetmin) / (datasetmax - datasetmin));
brush.Color = Color.FromArgb(colorvalue, colorvalue, colorvalue);
}
e.Graphics.FillRectangle(brush, j * rendersquarewidth, i * rendersquareheight, rendersquarewidth, rendersquareheight);
}
}
// Print out some information
double current_y = y_min + (y_max - y_min) * last_mouse_y / (double)(this.Height - rendersquareheight);
double current_x = x_min + (x_max - x_min) * last_mouse_x / (double)(this.Width - rendersquarewidth);
int dataset_i = (int)(datasetheight * last_mouse_y / (double)this.Height);
int dataset_j = (int)(datasetwidth * last_mouse_x / (double)this.Width);
if (dataset_i > dataset.GetUpperBound(0))
{
dataset_i = dataset.GetUpperBound(0);
}
if (dataset_j > dataset.GetUpperBound(1))
{
dataset_j = dataset.GetUpperBound(1);
}
if (dataset_i < 0)
{
dataset_i = 0;
}
if (dataset_j < 0)
{
dataset_j = 0;
}
Font font = new Font(FontFamily.GenericSansSerif, 8.0f);
brush.Color = Color.Green;
StringBuilder sb = new StringBuilder();
sb.AppendFormat("Mouse at {0}={1} {2}={3} value={4} i,j=({5},{6})", x_name, current_x, y_name, current_y, dataset[dataset_i, dataset_j], dataset_i, dataset_j);
e.Graphics.DrawString(sb.ToString(), font, brush, 10, 10);
}
// Otherwise we have no dataset to render
else
{
ChartTools.renderNoDatasetMessage(e.Graphics);
}
}
