Bug with Chart Title Font color

[johnnix]

Hello,

If you drop a Chart into a form and change the title font color to clBtnFace it drawn as yellow (latest TeeChart, Delphi XE6).

Regards

[Yeray]

Hello

If you drop a Chart into a form and change the title font color to clBtnFace it drawn as yellow (latest TeeChart, Delphi XE6).

Take a look at the TeeChart 2013 What's New document.
It says:

Any color (pen, font, gradient, brush, etc) is now treated as a proper 32bit color with RGB and Alpha components.

The only limitation is pseudo-colors can’t be used (clBtnFace, clWindow, etc).

[johnnix]

Ok, so since I need to custom draw the title how can I assign the same color as the background?

[Yeray]

Hello,

Ok, so since I need to custom draw the title how can I assign the same color as the background?

I'm not sure to understand it. If you are making reference to something discussed in another thread, please kindly provide the link to that discussion.
Otherwise, please try to explain with more detail what are you trying to achieve.

[johnnix]

Hello Yeray,

If you look at the screenshot you see that I need set the color of the title to match the color of the background, since the background color is clBtnFace how can I assign this to the title?

Regards

[Yeray]

Hello,

This seems to work fine for me here:

Code: Select all

procedure TForm1.FormCreate(Sender: TObject);
begin
  Chart1.Gradient.Visible:=false;
  Chart1.Walls.Back.Gradient.Visible:=false;
  Chart1.Walls.Back.Color:=clWhite;

  Chart1.Title.Font.Size:=20;
  Chart1.Title.Font.Color:=Chart1.Color;
end;

[johnnix]

Hello,

Attached is a project file, the clWhite button works fine but the clBtnFace button turns the font color to yellow.

Regards

[Yeray]

Hi,

Unfortunately, the "A" in RBGA is used to identify the special colors in VCL (clNone, clDefault, clBtnFace,...) so it can't be used for the transparency.
However, you can convert these special colors to regular colors using ColorToRGB function:

Code: Select all

Chart1.Color := ColorToRGB(clBtnFace);

[johnnix]

Hello Yeray,

That did the trick, thank you very much!

Regards