1 | #! perl |
1 | #! perl |
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2 | |
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3 | #:META:RESOURCE:$$:string:background expression |
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4 | #:META:RESOURCE:$$-enable:boolean:some boolean |
2 | |
5 | |
3 | our $EXPR = 'move load "/root/pix/das_fette_schwein.jpg", repeat_wrap, X, Y'; |
6 | our $EXPR = 'move load "/root/pix/das_fette_schwein.jpg", repeat_wrap, X, Y'; |
4 | $EXPR = ' |
7 | $EXPR = ' |
5 | rotate W, H, 50, 50, counter 1/59.95, repeat_mirror, |
8 | rotate W, H, 50, 50, counter 1/59.95, repeat_mirror, |
6 | clip X, Y, W, H, repeat_mirror, |
9 | clip X, Y, W, H, repeat_mirror, |
7 | load "/root/pix/das_fette_schwein.jpg" |
10 | load "/root/pix/das_fette_schwein.jpg" |
8 | '; |
11 | '; |
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12 | $EXPR = 'solid "red"'; |
9 | #$EXPR = 'blur root, 10, 10' |
13 | #$EXPR = 'blur root, 10, 10' |
10 | #$EXPR = 'blur move (root, -x, -y), 5, 5' |
14 | #$EXPR = 'blur move (root, -x, -y), 5, 5' |
11 | #resize load "/root/pix/das_fette_schwein.jpg", w, h |
15 | #resize load "/root/pix/das_fette_schwein.jpg", w, h |
12 | |
16 | |
13 | use Safe; |
17 | use Safe; |
14 | |
18 | |
15 | our ($bgdsl_self, $old, $new); |
19 | our ($bgdsl_self, $old, $new); |
16 | our ($l, $t, $w, $h); |
20 | our ($l, $t, $w, $h); |
17 | |
21 | |
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22 | # enforce at leats this time between updates |
18 | our $MIN_INTERVAL = 1/100; |
23 | our $MIN_INTERVAL = 1/100; |
19 | |
24 | |
20 | { |
25 | { |
21 | package urxvt::bgdsl; # background language |
26 | package urxvt::bgdsl; # background language |
22 | |
27 | |
23 | *repeat_black = \&urxvt::RepeatNone; #TODO wtf |
28 | *repeat_black = \&urxvt::RepeatNone; #TODO wtf |
24 | *repeat_wrap = \&urxvt::RepeatNormal; |
29 | *repeat_wrap = \&urxvt::RepeatNormal; |
25 | *repeat_pad = \&urxvt::RepeatPad; |
30 | *repeat_pad = \&urxvt::RepeatPad; |
26 | *repeat_mirror = \&urxvt::RepeatReflect; |
31 | *repeat_mirror = \&urxvt::RepeatReflect; |
27 | |
32 | |
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33 | =head2 PROVIDERS/GENERATORS |
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34 | |
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35 | =over 4 |
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36 | |
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37 | =item load $path |
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38 | |
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39 | =cut |
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40 | |
28 | sub load($) { |
41 | sub load($) { |
29 | my ($path) = @_; |
42 | my ($path) = @_; |
30 | |
43 | |
31 | $new->{load}{$path} = $old->{load}{$path} || $bgdsl_self->new_img_from_file ($path); |
44 | $new->{load}{$path} = $old->{load}{$path} || $bgdsl_self->new_img_from_file ($path); |
32 | } |
45 | } |
33 | |
46 | |
34 | sub root() { |
47 | sub root() { |
35 | $new->{rootpmap_sensitive} = 1; |
48 | $new->{rootpmap_sensitive} = 1; |
36 | die "root op not supported, exg, we need you"; |
49 | die "root op not supported, exg, we need you"; |
37 | } |
50 | } |
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51 | |
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52 | sub solid($;$$) { |
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53 | my $img = $bgdsl_self->new_img (urxvt::PictStandardARGB32, $_[1] || 1, $_[2] || 1); |
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54 | $img->fill ($_[0]); |
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55 | $img |
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56 | } |
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57 | |
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58 | =back |
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59 | |
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60 | =head2 OPERATORS |
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61 | |
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62 | =over 4 |
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63 | |
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64 | =cut |
38 | |
65 | |
39 | # sub clone($) { |
66 | # sub clone($) { |
40 | # $_[0]->clone |
67 | # $_[0]->clone |
41 | # } |
68 | # } |
42 | |
69 | |
… | |
… | |
73 | } |
100 | } |
74 | |
101 | |
75 | sub blur($$$) { |
102 | sub blur($$$) { |
76 | my ($rh, $rv, $img) = @_; |
103 | my ($rh, $rv, $img) = @_; |
77 | |
104 | |
78 | $img = $img->clone; |
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79 | $img->blur ($rh, $rv); |
105 | $img->blur ($rh, $rv); |
80 | $img |
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81 | } |
106 | } |
82 | |
107 | |
83 | sub contrast($$;$$;$) { |
108 | sub contrast($$;$$;$) { |
84 | my $img = pop; |
109 | my $img = pop; |
85 | my ($r, $g, $b, $a) = @_; |
110 | my ($r, $g, $b, $a) = @_; |
… | |
… | |
117 | |
142 | |
118 | sub counter($) { |
143 | sub counter($) { |
119 | $new->{again} = $_[0]; |
144 | $new->{again} = $_[0]; |
120 | $bgdsl_self->{counter} + 0 |
145 | $bgdsl_self->{counter} + 0 |
121 | } |
146 | } |
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147 | |
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148 | =back |
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149 | |
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150 | =cut |
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151 | |
122 | } |
152 | } |
123 | |
153 | |
124 | sub parse_expr { |
154 | sub parse_expr { |
125 | my $expr = eval "sub {\npackage urxvt::bgdsl;\n#line 0 'background expression'\n$_[0]\n}"; |
155 | my $expr = eval "sub {\npackage urxvt::bgdsl;\n#line 0 'background expression'\n$_[0]\n}"; |
126 | die if $@; |
156 | die if $@; |
… | |
… | |
143 | |
173 | |
144 | if ($self->{next_refresh} > urxvt::NOW) { |
174 | if ($self->{next_refresh} > urxvt::NOW) { |
145 | $self->{next_refresh_timer} = urxvt::timer->new->after ($self->{next_refresh} - urxvt::NOW)->cb (sub { |
175 | $self->{next_refresh_timer} = urxvt::timer->new->after ($self->{next_refresh} - urxvt::NOW)->cb (sub { |
146 | $self->recalculate; |
176 | $self->recalculate; |
147 | }); |
177 | }); |
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178 | return; |
148 | } |
179 | } |
149 | |
180 | |
150 | $self->{next_refresh} = urxvt::NOW + $MIN_INTERVAL; |
181 | $self->{next_refresh} = urxvt::NOW + $MIN_INTERVAL; |
151 | |
182 | |
152 | # set environment to evaluate user expression |
183 | # set environment to evaluate user expression |
… | |
… | |
161 | |
192 | |
162 | # evaluate user expression |
193 | # evaluate user expression |
163 | |
194 | |
164 | my $img = eval { $self->{expr}->() }; |
195 | my $img = eval { $self->{expr}->() }; |
165 | warn $@ if $@;#d# |
196 | warn $@ if $@;#d# |
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197 | die if !UNIVERSAL::isa $img, "urxvt::img"; |
166 | |
198 | |
167 | # if the expression is sensitive to external events, prepare reevaluation then |
199 | # if the expression is sensitive to external events, prepare reevaluation then |
168 | |
200 | |
169 | my $repeat; |
201 | my $repeat; |
170 | |
202 | |