Background color of TStringGrid cell when selected 1

[bhobbs]

Hi all,

I am trying to customize the drawing of the cells of a TStringGrid. I need certain cells that contain hex values to have a different background color. I have written the method below which is called for the OnDrawCell event.

It works fine except when the cell is selected. In this case, the background reverts back to the default white color instead of the hex color.

Does anyone know how I can fix this problem?

void UT_CustomStringGridDrawCell(TStringGrid *StringGrid,
int Col,
int Row,
TRect &Rect,
TGridDrawState State,
bool ValidCell,
bool HexCell)
{
AnsiString Text;

if ( State.Contains(gdFixed) )
{
//Fixed row.
StringGrid->Canvas->Brush->Color =
clBtnFace;
StringGrid->Canvas->Font->Color =
ValidCell ? clWindowText :
RDCFG_INVALID_COLOR;
StringGrid->Canvas->FillRect(Rect);
Frame3D(StringGrid->Canvas,
Rect,
clBtnHighlight,
clBtnShadow,
1);
}
else if (HexCell)
{
//Hex Input Cell
StringGrid->Canvas->Brush->Color =
RDCFG_HEX_COLOR;
if (State.Contains(gdSelected))
{
StringGrid->Canvas->Font->Color =
ValidCell ? clHighlightText :
RDCFG_INVALID_COLOR;
}
else
{
StringGrid->Canvas->Font->Color =
ValidCell ?
StringGrid->Font->Color :
RDCFG_INVALID_COLOR;
}
StringGrid->Canvas->FillRect(Rect);
}
else if (State.Contains(gdSelected))
{
//Selected cell.
StringGrid->Canvas->Brush->Color =
clHighlight;
StringGrid->Canvas->Font->Color =
ValidCell ? clHighlightText :
RDCFG_INVALID_COLOR;
StringGrid->Canvas->FillRect(Rect);
}
else
{
//Normal.
StringGrid->Canvas->Brush->Color =
StringGrid->Color;
StringGrid->Canvas->Font->Color =
ValidCell ? StringGrid->Font->Color :
RDCFG_INVALID_COLOR;
StringGrid->Canvas->FillRect(Rect);
}

Text = StringGrid->Cells[Col][Row];
StringGrid->Canvas->TextRect(Rect,
Rect.Left,
Rect.Top,
Text);
}

 

[2ffat]

Hmm...Did you disable the grid's default color? Try something like this:

StringGrid->DefaultDrawing = false;

Also look at BCBCAQ's site (

http://bcbjournal.com/bcbcaq/index.php)

particularly

http://bcbjournal.com/bcbcaq/index.php?loc=grids&caq=48

James P. Cottingham
-----------------------------------------
[sup]I'm number 1,229!
I'm number 1,229![/sup]

 

[bhobbs]

Yes, I did that and it had no effect. It does the same thing regardless of whether DefaultDrawing is set to true or false.

 

[butthead]

the cell color does return to the proper color
when the cell is not selected , correct.

tomcruz.net

 

[butthead]

I would think the default Highlight activity
responding to the selected cell should be altered.

we can change this property in the display properties
in the control panel, but how do we manipulate the
selected color of an object in code.

is there an api somewhere that we use to interface with
the selected window color.

tomcruz.net

 

[butthead]

this link aparently solves the problem In
visual basic

http://www.experts-exchange.com/Programming/Programming_Languages/Dot_Net/VB_DOT_NET/Q_21275992.html

so we know it can be done.

although I dont know VB.


tomcruz.net

 

[butthead]

http://www.codeproject.com/dialog/colorfont.asp

visual c++.

I got problems interpreting

but if someone can translate

it may be of use to some


tomcruz.net

 

[bhobbs]

I fixed my problem by subclassing the TStringList class and changing the brush color of the TInplaceEdit. See

http://newsgroups.borland.com/cgi-b...builder.vcl.components.using&item=92478&utag=

and

http://newsgroups.borland.com/cgi-b...builder.vcl.components.using&item=92504&utag=

for details.

Brandy

 

[butthead]

InplaceEditor

I did not know it was there. I looked for it in help
and found a whole new world underneath the top layer I
have been working in.

you have just complicated my life so much.

thanks ;-)

TC

 

[butthead]

I found these links that might be useful to you.

http://bcbjournal.com/articles/vol4/0009/Working_with_string_grids.htm

http://bcbjournal.com/articles/vol4/0010/More_string_grids.htm

TC