office/okular
office/okular
1
0
Fork 0
mirror of https://invent.kde.org/graphics/okular synced 2024-11-05 18:34:53 +00:00
Code Issues Projects Releases Packages Wiki Activity

Improved font rendering. More improvements to follow.

Browse source 
svn path=/trunk/kdegraphics/kdvi/; revision=44090
This commit is contained in:
Stefan Kebekus 2000-03-20 03:50:10 +00:00
parent 14ecfa0cd4
commit 6e8270af18
1 changed files with 18 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

33
glyph.cpp
View file

@ -96,22 +96,23 @@ QPixmap glyph::shrunkCharacter()
init_cols += shrink_factor;
else
++x2;
// include row zero with the positively numbered rows
cols = y + 1; // spare register variable
y2 = cols / shrink_factor;
rows = cols - y2 * shrink_factor;
if (rows <= 0) {
rows += shrink_factor;
--y2;
}
int shrunk_height = y2 + (((int) bitmap.h - cols)/ shrink_factor) + 1;
int shrunk_width = x2 + (((int) bitmap.w - x)/ shrink_factor) + 1;
y2 = y / shrink_factor;
rows = y - y2 * shrink_factor;
if (rows <= 0)
rows += shrink_factor;
else
++y2;
#define ROUNDUP(x,y) (((x)+(y)-1)/(y))
int shrunk_height = y2 + ROUNDUP(((int) bitmap.h - y) , shrink_factor);
int shrunk_width = x2 + (((int) bitmap.w - x) / shrink_factor) + 1;
QBitmap bm(bitmap.bytes_wide*8, (int)bitmap.h, (const uchar *)(bitmap.bits) ,TRUE);
// The intermediate Pixmap pm is taken to be slightly too large.
// After the smoothscale(), this give lighter characters which are easier to read.
// After the smoothscale(), this gives lighter characters which are easier to read.
SmallChar= new QPixmap(bitmap.w+2*(shrink_factor/3), bitmap.h+2*(shrink_factor/3));
@ -135,14 +136,16 @@ QPixmap glyph::shrunkCharacter()
for(int y=0; y<im.height(); y++) {
QRgb *imag_scanline = (QRgb *)im32.scanLine(y);
for(int x=0; x<im.width(); x++) {
if (*imag_scanline != 0x00ffffff)
// Make White => Transaparent
if ((0x00ffffff & *imag_scanline) == 0x00ffffff)
*imag_scanline &= 0x00ffffff;
else
*imag_scanline |= 0xff000000;
imag_scanline++; // Disgusting pointer arithmetic. Should be forbidden.
}
}
SmallChar->convertFromImage(im32,0);
// TODO: throw execption if SmallChar == NULL
// TODO: throw execption if SmallChar is empty
}
return *SmallChar;
}