public void SetLegendImage(KSeries series)
{
Image sdImage;
int height = button.Font.Height; const int width = 50; const int padding = 0; const int frame = 3; const int left = 0;
int thickness = (series.lineStyle == KLineStyle.Thick) ? 3 : (series.lineMode == KLineMode.Line) ? 1 : (height - 2 * frame - 1);
int framedH = thickness + 2 * frame; int framedY = (height - 2 * padding - framedH) / 2;
int framedW = width - 2 * padding; int framedX = left + padding;
using (SKBitmap skBitmap = new SKBitmap(left + width, height))
using (SKCanvas skCanvas = new SKCanvas(skBitmap))
using (SKPaint back = new SKPaint {
Style = SKPaintStyle.Fill, Color = new SKColor(backgroundColor.R, backgroundColor.G, backgroundColor.B, backgroundColor.A)
})
using (SKPaint white = new SKPaint {
Style = SKPaintStyle.Fill, Color = new SKColor(255, 255, 255, 255)
})
using (SKPaint color = new SKPaint {
Style = SKPaintStyle.Fill, Color = series.color
}) {
skCanvas.DrawRect(new SKRect(0, 0, left + width, height), back);
if (series.visible)
{
skCanvas.DrawRect(new SKRect(framedX, framedY, framedX + framedW, framedY + framedH), white);
skCanvas.DrawRect(new SKRect(framedX + frame, framedY + frame, framedX + framedW - frame, framedY + frame + thickness), color);
}
sdImage = skBitmap.ToBitmap();
}
this.button.Image = sdImage;
this.button.AutoSize = false;
this.button.Size = this.button.Image.Size;
}
public void SetLegend() // Called by LegendUpdate
{
KSeries[] legend = KChartHandler.Legend();
guiControls.menuLegend.ClearMenuItems();
for (int i = legend.Length - 1; i >= 0; i--)
{
KSeries series = legend[i]; // captured in the OnClick closure
series.lineButton = guiControls.menuLegend.NewMenuSection(); series.lineButton.SetLegendImage(series);
series.lineButton.OnClick((object s, EventArgs e) => { OnLegendClick(legend, series); });
series.nameButton = guiControls.menuLegend.NewMenuItemButton(); series.nameButton.SetText(series.name);
series.nameButton.OnClick((object s, EventArgs e) => { OnLegendClick(legend, series); });
guiControls.menuLegend.AddMenuRow(new KButton[2] {
series.lineButton, series.nameButton
}); //, pad });
}
guiControls.menuLegend.Open();
}
public void OnLegendClick(KSeries[] legend, KSeries series)
{
if (guiControls.IsShiftDown())
{
KChartHandler.ShiftInvertVisible(series.name);
foreach (var seriesI in legend)
{
seriesI.lineButton.SetLegendImage(seriesI);
}
}
else
{
KChartHandler.InvertVisible(series.name);
series.lineButton.SetLegendImage(series); // accessing the shared series data structure!
}
KChartHandler.VisibilityRemember();
KChartHandler.ChartUpdate(null); // cannot provide style: would have to marshall it throug KGui but is ok to update
}
public void SetLegendImage(KSeries series)
{
NSImage nsImage;
int thickness = (series.lineStyle == KLineStyle.Thick) ? 3 : (series.lineMode == KLineMode.Line) ? 1 : 8;
const int height = 16; const int width = 50; const int padding = 1; const int frame = 3; const int left = 0;
int framedH = thickness + 2 * frame; int framedY = (height - 2 * padding - framedH) / 2;
int framedW = width - 2 * padding; int framedX = left + padding;
using (CGBitmapContext bitmap = CG.Bitmap(left + width, height)) {
CG.DrawRect(bitmap, new CGRect(0, 0, left + width, height), CG.Color(new SKColor(0, 0, 0, 0))); // transparent
if (series.visible)
{
CG.DrawRect(bitmap, new CGRect(framedX, framedY, framedW, framedH), CG.Color(SKColors.White));
CG.DrawRect(bitmap, new CGRect(framedX + frame, framedY + frame, framedW - 2 * frame, thickness), CG.Color(series.color));
}
using (CGImage cgImage = bitmap.ToImage()) {
nsImage = new NSImage(cgImage, new CGSize(cgImage.Width, cgImage.Height));
}
}
this.imageDM = nsImage;
this.imageLM = nsImage;
this.button.Image = nsImage;
}