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Fl_Scalable_Graphics_Driver::rect(): don't draw a rectangle if w or h is negative

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git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12920 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Manolo Gouy 2018-05-13 07:42:44 +00:00
parent 10640df785
commit a4927c1d13
1 changed files with 6 additions and 4 deletions
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10
src/Fl_Graphics_Driver.cxx
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@ -346,10 +346,12 @@ void Fl_Scalable_Graphics_Driver::rect(int x, int y, int w, int h)
if (int(scale()) == scale()) {
rect_unscaled(x * scale(), y * scale(), w * scale(), h * scale());
} else {
xyline(x, y, x+w-1);
yxline(x, y, y+h-1);
yxline(x+w-1, y, y+h-1);
xyline(x, y+h-1, x+w-1);
if (w > 0 && h > 0) {
xyline(x, y, x+w-1);
yxline(x, y, y+h-1);
yxline(x+w-1, y, y+h-1);
xyline(x, y+h-1, x+w-1);
}
}
}