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just massage the input format

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4028 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Lars Gullik Bjønnes 2002-04-18 17:48:55 +00:00
parent 83c2be0da4
commit 6277647f63
2 changed files with 23 additions and 42 deletions
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5
src/graphics/ChangeLog
View File

@ -1,3 +1,8 @@
2002-04-18 Lars Gullik Bjønnes <larsbj@birdstep.com>
* GraphicsImageXPM.C (convertTo7chars): drop all conversions and
only work on the string.
2002-04-17 Angus Leeming <a.leeming@ic.ac.uk>
* GraphicsImageXPM.C (Data::reset): Fix the loading of xpm files by

50
src/graphics/GraphicsImageXPM.C
View File

@ -516,6 +516,7 @@ void GImageXPM::Data::resetData(int w, int h, unsigned int * d)
data_.reset(d);
}
unsigned int * GImageXPM::Data::initialisedData(int w, int h) const
{
size_t const data_size = w * h;
@ -558,52 +559,27 @@ string const convertTo7chars(string const & input)
// Can't deal with it.
return input;
int nbytes;
double factor;
string format(input);
switch (size) {
case 13: // #rrrrggggbbbb
nbytes = 4;
factor = 1.0 / 256.0;
format.erase(3, 2);
format.erase(5, 2);
format.erase(7, 2);
break;
case 10: // #rrrgggbbb
nbytes = 3;
factor = 1.0 / 16.0;
format.erase(3, 1);
format.erase(5, 1);
format.erase(7, 1);
break;
case 4: // #rgb
nbytes = 1;
factor = 16.0;
format.insert(2, 1, '0');
format.insert(4, 1, '0');
format.append(1, '0');
break;
}
int r, g, b;
int const pos1 = 1;
int const pos2 = pos1 + nbytes;
int const pos3 = pos2 + nbytes;
stringstream ss;
ss << input.substr(pos1, nbytes) << ' '
<< input.substr(pos2, nbytes) << ' '
<< input.substr(pos3, nbytes);
ss >> std::hex >> r >> g >> b;
if (ss.fail())
// Oh, you're on your own.
return input;
// The existing r,g,b values are multiplied by these factors
// to end up with values in the range 0 <= c <= 255
r = int(factor * double(r));
g = int(factor * double(g));
b = int(factor * double(b));
ostringstream oss;
oss << '#' << std::hex << std::setfill('0')
<< std::setw(2) << r
<< std::setw(2) << g
<< std::setw(2) << b;
return oss.str().c_str();
return format;
}