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[SOLVED] Fitting control to StringGrid cell
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Topic: [SOLVED] Fitting control to StringGrid cell (Read 642 times)
pcurtis
Hero Member
Posts: 951
[SOLVED] Fitting control to StringGrid cell
«
on:
February 28, 2021, 05:55:59 pm »
Hi All,
why doesn't the control (TButton) fit the cell in a StringGrid when I do this
Code: Pascal
[Select]
[+]
[-]
procedure
TForm1
.
StringGrid1DrawCell
(
Sender
:
TObject
;
aCol
,
aRow
:
Integer
;
aRect
:
TRect
;
aState
:
TGridDrawState
)
;
begin
if
(
aCol
=
1
)
and
(
aRow
=
2
)
then
Button2
.
SetBounds
(
aRect
.
Left
,
aRect
.
Top
,
aRect
.
Width
,
aRect
.
Height
)
;
(
Sender as TStringGrid
)
.
DefaultDrawCell
(
aCol
,
aRow
,
aRect
,
aState
)
;
end
;
Its close but about 10 pixels off
«
Last Edit: February 28, 2021, 06:49:12 pm by pcurtis
»
Logged
Windows 10 20H2
Laz 2.2.0
FPC 3.2.2
Handoko
Hero Member
Posts: 5159
My goal: build my own game engine using Lazarus
Re: Fitting control to StringGrid cell
«
Reply #1 on:
February 28, 2021, 06:26:09 pm »
It should be something like this:
Code: Pascal
[Select]
[+]
[-]
procedure
TForm1
.
StringGrid1DrawCell
(
Sender
:
TObject
;
aCol
,
aRow
:
Integer
;
aRect
:
TRect
;
aState
:
TGridDrawState
)
;
var
TheGrid
:
TStringGrid
;
begin
if
not
(
Sender is TStringGrid
)
then
Exit
;
TheGrid
:
=
(
Sender as TStringGrid
)
;
if
(
aCol
=
1
)
and
(
aRow
=
2
)
then
Button1
.
SetBounds
(
aRect
.
Left
+
TheGrid
.
Left
,
aRect
.
Top
+
TheGrid
.
Top
,
aRect
.
Width
,
aRect
.
Height
)
;
end
;
Logged
jamie
Hero Member
Posts: 6131
Re: Fitting control to StringGrid cell
«
Reply #2 on:
February 28, 2021, 06:26:34 pm »
hard to say...
could be borderspacing values set in the control?
the control may have the wrong parent..?
The control could be scrolled alittle ?
Logged
The only true wisdom is knowing you know nothing
Handoko
Hero Member
Posts: 5159
My goal: build my own game engine using Lazarus
Re: Fitting control to StringGrid cell
«
Reply #3 on:
February 28, 2021, 06:30:57 pm »
Not hard.
It's about the coordinate origin. The button's coordinate origin is the form's top left corner but the aRect in the event is using the grid's top left corner as its origin.
Logged
pcurtis
Hero Member
Posts: 951
Re: Fitting control to StringGrid cell
«
Reply #4 on:
February 28, 2021, 06:43:28 pm »
Thanks
Logged
Windows 10 20H2
Laz 2.2.0
FPC 3.2.2
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[SOLVED] Fitting control to StringGrid cell
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