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/cvs/rxvt-unicode/src/perl/background
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Comparing rxvt-unicode/src/perl/background (file contents):
Revision 1.2 by root, Tue Jun 5 11:00:40 2012 UTC vs.
Revision 1.7 by root, Tue Jun 5 14:04:58 2012 UTC

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

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