for UITABLE: BackgroundColor for row

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Youcef BOUNADJA on 12 Apr 2013

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Edited: Walter Roberson on 19 Dec 2015

hello,

i have problem in GUI, for UITABLE the BackgroundColor are for every row but i want BackgroundColor for every colomn please help me,

.

for exemple:

f = figure('Position', [100 100 752 350]); t = uitable('Parent', f, 'Position', [25 25 700 200]);

set(t, 'Data', magic(10));

foregroundColor = [1 1 1]; set(t, 'ForegroundColor', foregroundColor); backgroundColor = [.4 .1 .1; .1 .1 .4]; set(t, 'BackgroundColor', backgroundColor);

.

thank you in advance

faithfully;

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Answer 1

Walter Roberson on 12 Apr 2013

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You cannot directly set colors per column (unless it can be done at the Java level.)

The work-around is to change the column to string format, convert the numeric values to string, and wrap each string with an HTML code to change the color.

bgcols = floor(255 * [.4 .1 .1;.1 .1 .4]);
colfmtstr = sprintf('<HTML><TABLE><TD bgcolor="rgb(%d,%d,%d)"%%g', bgcols(1,:));
colcontents = cellstr( num2str(magic(10), colfmtstr) );

then make colcontents one of the columns of the data. Change the color for a different column by changing the (1,:) to (2,:)

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Youcef BOUNADJA on 12 Apr 2013

im very sorry but,

can you give me that code in an exemple... because that's not work

thank you again

Walter Roberson on 12 Apr 2013

Edited: Walter Roberson on 19 Dec 2015

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Sorry, I forgot that num2str() needs data in columns to work the way I was thinking of. Also, I did some work on getting the columns to look better.

f = figure('Position', [100 100 752 350]);
t = uitable('Parent', f, 'Position', [25 25 700 200], 'FontName', 'courier');   %fixed-width font but not 'fixed' itself
desiredcellwid = 10;    %adjust as needed
fgcols = floor(255 * [1 1 1]);
bgcols = floor(255 * [.4 .1 .1;.1 .1 .4]);
colprestr = sprintf('<HTML><TABLE><TD color="rgb(%d,%d,%d)" bgcolor="rgb(%d,%d,%d)">', fgcols(1,:), bgcols(1,:));
numfmt = '%g';
msquare = magic(10);
for K = 1 : size(msquare,2)
  Tcol = cellstr(num2str(msquare(:,K), numfmt));
  Tcol = cellfun(@(s) [blanks(desiredcellwid - length(s)), s], Tcol, 'Uniform', 0);
  Tcol = strcat( colprestr, regexprep(Tcol, ' ', ' ') );
  colcontents(:,K) = Tcol;
end
set(t, 'Data', colcontents);