| … | |
… | |
| 4 | #:META:X_RESOURCE:%.border:boolean:respect the terminal border |
4 | #:META:X_RESOURCE:%.border:boolean:respect the terminal border |
| 5 | #:META:X_RESOURCE:%.interval:seconds:minimum time between updates |
5 | #:META:X_RESOURCE:%.interval:seconds:minimum time between updates |
| 6 | |
6 | |
| 7 | =head1 NAME |
7 | =head1 NAME |
| 8 | |
8 | |
| 9 | background - manage terminal background |
9 | background - manage terminal background |
| 10 | |
10 | |
| 11 | =head1 SYNOPSIS |
11 | =head1 SYNOPSIS |
| 12 | |
12 | |
| 13 | urxvt --background-expr 'background expression' |
13 | urxvt --background-expr 'background expression' |
| 14 | --background-border |
14 | --background-border |
| … | |
… | |
| 613 | Clips an image to the given rectangle. If the rectangle is outside the |
613 | Clips an image to the given rectangle. If the rectangle is outside the |
| 614 | image area (e.g. when C<$x> or C<$y> are negative) or the rectangle is |
614 | image area (e.g. when C<$x> or C<$y> are negative) or the rectangle is |
| 615 | larger than the image, then the tiling mode defines how the extra pixels |
615 | larger than the image, then the tiling mode defines how the extra pixels |
| 616 | will be filled. |
616 | will be filled. |
| 617 | |
617 | |
| 618 | If C<$x> an C<$y> are missing, then C<0> is assumed for both. |
618 | If C<$x> and C<$y> are missing, then C<0> is assumed for both. |
| 619 | |
619 | |
| 620 | If C<$width> and C<$height> are missing, then the window size will be |
620 | If C<$width> and C<$height> are missing, then the window size will be |
| 621 | assumed. |
621 | assumed. |
| 622 | |
622 | |
| 623 | Example: load an image, blur it, and clip it to the window size to save |
623 | Example: load an image, blur it, and clip it to the window size to save |
| … | |
… | |
| 885 | $img |
885 | $img |
| 886 | } |
886 | } |
| 887 | |
887 | |
| 888 | =item muladd $mul, $add, $img # EXPERIMENTAL |
888 | =item muladd $mul, $add, $img # EXPERIMENTAL |
| 889 | |
889 | |
| 890 | First multipliesthe pixels by C<$mul>, then adds C<$add>. This cna be used |
890 | First multiplies the pixels by C<$mul>, then adds C<$add>. This can be used |
| 891 | to implement brightness and contrast at the same time, with a wider value |
891 | to implement brightness and contrast at the same time, with a wider value |
| 892 | range than contrast and brightness operators. |
892 | range than contrast and brightness operators. |
| 893 | |
893 | |
| 894 | Due to numerous bugs in XRender implementations, it can also introduce a |
894 | Due to numerous bugs in XRender implementations, it can also introduce a |
| 895 | number of visual artifacts. |
895 | number of visual artifacts. |
