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/cvs/rxvt-unicode/src/perl/background
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Comparing rxvt-unicode/src/perl/background (file contents):
Revision 1.1 by root, Mon Jun 4 21:39:56 2012 UTC vs.
Revision 1.9 by root, Tue Jun 5 14:46:54 2012 UTC

1#! perl 1#! perl
2 2
3our $EXPR = 'resize (blur (load "/root/pix/das_fette_schwein.jpg", 1 + (counter 1) % 10, 10), w, h)'; 3our $EXPR = 'move load "/root/pix/das_fette_schwein.jpg", repeat_wrap, X, Y';
4$EXPR = '
5 rotate W, H, 50, 50, counter 1/59.95, repeat_mirror,
6 clip X, Y, W, H, repeat_mirror,
7 load "/root/pix/das_fette_schwein.jpg"
8';
4#$EXPR = 'blur root, 10, 10' 9#$EXPR = 'blur root, 10, 10'
5#$EXPR = 'blur move (root, -x, -y), 5, 5' 10#$EXPR = 'blur move (root, -x, -y), 5, 5'
6#resize load "/root/pix/das_fette_schwein.jpg", w, h 11#resize load "/root/pix/das_fette_schwein.jpg", w, h
7 12
8use Safe; 13use Safe;
9 14
15our ($bgdsl_self, $old, $new);
16our ($l, $t, $w, $h);
17
18our $MIN_INTERVAL = 1/60;
19
10{ 20{
11 package urxvt::bgdsl::vars;
12
13 our ($self, $old, $new);
14 our ($x, $y, $w, $h);
15
16 package urxvt::bgdsl; # background language 21 package urxvt::bgdsl; # background language
17 22
18 *repeat_black = \&urxvt::RepeatNone; #TODO wtf 23 *repeat_black = \&urxvt::RepeatNone; #TODO wtf
19 *repeat_wrap = \&urxvt::RepeatNormal; 24 *repeat_wrap = \&urxvt::RepeatNormal;
20 *repeat_pad = \&urxvt::RepeatPad; 25 *repeat_pad = \&urxvt::RepeatPad;
21 *repeat_mirror = \&urxvt::RepeatReflect; 26 *repeat_mirror = \&urxvt::RepeatReflect;
22 27
23 sub load { 28 sub load($) {
24 my ($path) = @_; 29 my ($path) = @_;
25 30
26 $new->{load}{$path} = $old->{load}{$path} || $self->new_img_from_file ($path); 31 $new->{load}{$path} = $old->{load}{$path} || $bgdsl_self->new_img_from_file ($path);
27 } 32 }
28 33
29 sub root { 34 sub root() {
35 $new->{rootpmap_sensitive} = 1;
30 die "root op not supported, exg, we need you"; 36 die "root op not supported, exg, we need you";
31 } 37 }
32 38
33 sub resize { 39# sub clone($) {
34 $_[0]->scale ($_[1], $_[2]) 40# $_[0]->clone
35 } 41# }
36 42
43 sub clip($$$$$;$) {
44 my $img = pop;
45 $img->sub_rect ($_[0], $_[1], $_[2], $_[3], $_[4])
46 }
47
48 sub resize($$$) {
49 my $img = pop;
50 $img->scale ($_[0], $_[1])
51 }
52
53 # TODO: ugly
37 sub move { 54 sub move($$;$) {
38 # TODO: must be simpler 55 my $img = pop;
39 $_[0]->transform ($_[0]->w, $_[0]->h, $_[1], 56 $img->sub_rect (
57 $_[0], $_[1],
58 $img->w, $img->h,
40 1, 0, -$_[2], 59 $_[2],
41 0, 1, -$_[3],
42 0, 0, 1,
43 ) 60 )
44 } 61 }
45 62
46 sub rotate { 63 sub rotate($$$$$$;$) {
47 $_[0]->rotate ($_[0], $_[1], $_[2], $_[3] * (3.14159265 / 180)) 64 my $img = pop;
65 $img->rotate (
66 $_[0],
67 $_[1],
68 $_[2] * $img->w * .01,
69 $_[3] * $img->h * .01,
70 $_[4] * (3.14159265 / 180),
71 $_[5],
72 )
48 } 73 }
49 74
50 sub blur { 75 sub blur($$$) {
51 my ($img, $rh, $rv) = @_; 76 my ($rh, $rv, $img) = @_;
52 77
53 $img = $img->clone; 78 $img = $img->clone;
54 $img->clone->blur ($rh, $rv); 79 $img->blur ($rh, $rv);
55 $img 80 $img
56 } 81 }
57 82
58 sub contrast { 83 sub contrast($$;$$;$) {
84 my $img = pop;
59 my ($img, $r, $g, $b, $a) = @_; 85 my ($r, $g, $b, $a) = @_;
86
60 ($g, $b) = ($r, $r) if @_ < 4; 87 ($g, $b) = ($r, $r) if @_ < 4;
61 $a = 1 if @_ < 5; 88 $a = 1 if @_ < 5;
89
62 $img = $img->clone; 90 $img = $img->clone;
63 $img->contrast ($r, $g, $b, $a); 91 $img->contrast ($r, $g, $b, $a);
64 $img 92 $img
65 } 93 }
66 94
67 sub brightness { 95 sub brightness($$;$$;$) {
96 my $img = pop;
68 my ($img, $r, $g, $b, $a) = @_; 97 my ($r, $g, $b, $a) = @_;
98
69 ($g, $b) = ($r, $r) if @_ < 4; 99 ($g, $b) = ($r, $r) if @_ < 4;
70 $a = 1 if @_ < 5; 100 $a = 1 if @_ < 5;
101
71 $img = $img->clone; 102 $img = $img->clone;
72 $img->brightness ($r, $g, $b, $a); 103 $img->brightness ($r, $g, $b, $a);
73 $img 104 $img
74 } 105 }
75 106
76 sub x { $new->{position_sensitive} = 1; $x } 107 sub X() { $new->{position_sensitive} = 1; $l }
77 sub y { $new->{position_sensitive} = 1; $y } 108 sub Y() { $new->{position_sensitive} = 1; $t }
78 sub w { $new->{size_sensitive} = 1; $w } 109 sub W() { $new->{size_sensitive} = 1; $w }
79 sub h { $new->{size_sensitive} = 1; $h } 110 sub H() { $new->{size_sensitive} = 1; $h }
111
80 sub now { urxvt::NOW } 112 sub now() { urxvt::NOW }
81 113
82 sub again { 114 sub again($) {
83 $new->{again} = $_[0]; 115 $new->{again} = $_[0];
84 } 116 }
85 117
86 sub counter { 118 sub counter($) {
87 $new->{again} = $_[0]; 119 $new->{again} = $_[0];
88 $self->{counter}++ + 0 120 $bgdsl_self->{counter} + 0
89 } 121 }
90} 122}
91 123
92sub parse_expr { 124sub parse_expr {
93 my $expr = eval "sub {\npackage urxvt::bgdsl;\n#line 0 'background expression'\n$_[0]\n}"; 125 my $expr = eval "sub {\npackage urxvt::bgdsl;\n#line 0 'background expression'\n$_[0]\n}";
… …
97 129
98# compiles a parsed expression 130# compiles a parsed expression
99sub set_expr { 131sub set_expr {
100 my ($self, $expr) = @_; 132 my ($self, $expr) = @_;
101 133
102 local $Data::Dumper::Deparse=1; use Data::Dumper; warn Dumper $expr;#d#
103 $self->{expr} = $expr; 134 $self->{expr} = $expr;
104 $self->recalculate; 135 $self->recalculate;
105} 136}
106 137
107# evaluate the current bg expression 138# evaluate the current bg expression
108sub recalculate { 139sub recalculate {
109 my ($self) = @_; 140 my ($self) = @_;
110 141
142 if ($self->{next_refresh} > urxvt::NOW) {
143 $self->{next_refresh_timer} = urxvt::timer->new->after ($self->{next_refresh} - urxvt::NOW)->cb (sub {
144 $self->recalculate;
145 });
146 }
147
148 $self->{next_refresh} = urxvt::NOW + $MIN_INTERVAL;
149
150 #TODO: rate limit calls
151
111 local $urxvt::bgdsl::vars::self = $self; 152 local $bgdsl_self = $self;
112 153
113 local $urxvt::bgdsl::vars::old = $self->{state}; 154 local $old = $self->{state};
114 local $urxvt::bgdsl::vars::new = my $state = $self->{state} = {}; 155 local $new = my $state = $self->{state} = {};
115 156
116 ($urxvt::bgdsl::vars::x, $urxvt::bgdsl::vars::y, $urxvt::bgdsl::vars::w, $urxvt::bgdsl::vars::h) = 157 ($l, $t, $w, $h) =
117 $self->get_geometry; 158 $self->get_geometry;
118 159
119 my $img = eval { $self->{expr}->() }; 160 my $img = eval { $self->{expr}->() };
120 warn $@ if $@;#d# 161 warn $@ if $@;#d#
121 162
163 my $repeat;
164
122 if (my $again = $state->{again}) { 165 if (my $again = $state->{again}) {
123 warn $again;#d# 166 $repeat = 1;
124 $state->{again} = urxvt::timer->new->after ($again)->cb (sub { $self->recalculate }); 167 $state->{timer} = $again == $old->{again}
168 ? $old->{timer}
169 : urxvt::timer->new->after ($again)->interval ($again)->cb (sub {
170 ++$self->{counter};
171 $self->recalculate
172 });
125 } 173 }
126 174
127 # TODO: install handlers for geometry changes &c 175 if (delete $state->{position_sensitive}) {
176 $repeat = 1;
177 $self->enable (position_change => sub { $_[0]->recalculate });
178 } else {
179 $self->disable ("position_change");
180 }
128 181
129 warn $img; 182 if (delete $state->{size_sensitive}) {
183 $repeat = 1;
184 $self->enable (size_change => sub { $_[0]->recalculate });
185 } else {
186 $self->disable ("size_change");
187 }
188
189 if (delete $state->{rootpmap_sensitive}) {
190 $repeat = 1;
191 $self->enable (rootpmap_change => sub { $_[0]->recalculate });
192 } else {
193 $self->disable ("rootpmap_change");
194 }
195
196 %$old = ();
197
198 unless ($repeat) {
199 delete $self->{state};
200 delete $self->{expr};
201 }
202
203 $img = $img->sub_rect (0, 0, $w, $h)
204 if $img->w != $w || $img->h != $h;
205
130 $self->set_background ($img); 206 $self->set_background ($img);
131 $self->scr_recolour (0); 207 $self->scr_recolour (0);
132 $self->want_refresh; 208 $self->want_refresh;
133} 209}
134 210

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