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| 1 |  |  |  |  |  |  | #! perl | 
| 2 |  |  |  |  |  |  |  | 
| 3 | 6 |  |  | 6 |  | 54554 | use strict; | 
|  | 6 |  |  |  |  | 9 |  | 
|  | 6 |  |  |  |  | 146 |  | 
| 4 | 6 |  |  | 6 |  | 27 | use warnings; | 
|  | 6 |  |  |  |  | 10 |  | 
|  | 6 |  |  |  |  | 122 |  | 
| 5 | 6 |  |  | 6 |  | 594 | use utf8; | 
|  | 6 |  |  |  |  | 22 |  | 
|  | 6 |  |  |  |  | 45 |  | 
| 6 |  |  |  |  |  |  |  | 
| 7 |  |  |  |  |  |  | package Text::Layout::FontConfig; | 
| 8 |  |  |  |  |  |  |  | 
| 9 | 6 |  |  | 6 |  | 202 | use Carp; | 
|  | 6 |  |  |  |  | 13 |  | 
|  | 6 |  |  |  |  | 381 |  | 
| 10 |  |  |  |  |  |  |  | 
| 11 |  |  |  |  |  |  |  | 
| 12 |  |  |  |  |  |  |  | 
| 13 |  |  |  |  |  |  | our $VERSION = "0.029"; | 
| 14 |  |  |  |  |  |  |  | 
| 15 | 6 |  |  | 6 |  | 2202 | use Text::Layout::FontDescriptor; | 
|  | 6 |  |  |  |  | 14 |  | 
|  | 6 |  |  |  |  | 10957 |  | 
| 16 |  |  |  |  |  |  |  | 
| 17 |  |  |  |  |  |  | =head1 NAME | 
| 18 |  |  |  |  |  |  |  | 
| 19 |  |  |  |  |  |  | Text::Layout::FontConfig - Pango style font description for Text::Layout | 
| 20 |  |  |  |  |  |  |  | 
| 21 |  |  |  |  |  |  | =head1 SYNOPSIS | 
| 22 |  |  |  |  |  |  |  | 
| 23 |  |  |  |  |  |  | Font descriptors are strings that identify the characteristics of the | 
| 24 |  |  |  |  |  |  | desired font. For example, C. | 
| 25 |  |  |  |  |  |  |  | 
| 26 |  |  |  |  |  |  | The PDF context deals with physical fonts, e.g. built-in fonts like | 
| 27 |  |  |  |  |  |  | C and fonts loaded from font files like | 
| 28 |  |  |  |  |  |  | C. | 
| 29 |  |  |  |  |  |  |  | 
| 30 |  |  |  |  |  |  | To map font descriptions to physical fonts, these fonts must be | 
| 31 |  |  |  |  |  |  | registered. This defines a font family, style, and weight for the | 
| 32 |  |  |  |  |  |  | font. | 
| 33 |  |  |  |  |  |  |  | 
| 34 |  |  |  |  |  |  | Note that Text::Layout::FontConfig is a singleton. Creating objects | 
| 35 |  |  |  |  |  |  | with new() will always return the same object. | 
| 36 |  |  |  |  |  |  |  | 
| 37 |  |  |  |  |  |  | =cut | 
| 38 |  |  |  |  |  |  |  | 
| 39 |  |  |  |  |  |  | my %fonts; | 
| 40 |  |  |  |  |  |  | my @dirs; | 
| 41 |  |  |  |  |  |  | my $loader; | 
| 42 |  |  |  |  |  |  | my $debug = 0; | 
| 43 |  |  |  |  |  |  |  | 
| 44 |  |  |  |  |  |  | my $weights = | 
| 45 |  |  |  |  |  |  | [ 100 => 'thin', | 
| 46 |  |  |  |  |  |  | 100 => 'hairline', | 
| 47 |  |  |  |  |  |  | 200 => 'extra light', | 
| 48 |  |  |  |  |  |  | 200 => 'ultra light', | 
| 49 |  |  |  |  |  |  | 300 => 'light',		# supported | 
| 50 |  |  |  |  |  |  | 350 => 'book',		# supported | 
| 51 |  |  |  |  |  |  | 400 => 'normal',		# supported | 
| 52 |  |  |  |  |  |  | 400 => 'regular',		# supported | 
| 53 |  |  |  |  |  |  | 500 => 'medium',		# supported | 
| 54 |  |  |  |  |  |  | 600 => 'semi bold',		# supported 'semi' | 
| 55 |  |  |  |  |  |  | 600 => 'demi bold', | 
| 56 |  |  |  |  |  |  | 700 => 'bold',		# supported | 
| 57 |  |  |  |  |  |  | 800 => 'extra bold', | 
| 58 |  |  |  |  |  |  | 800 => 'ultra bold', | 
| 59 |  |  |  |  |  |  | 900 => 'black', | 
| 60 |  |  |  |  |  |  | 900 => 'heavy',		# supported | 
| 61 |  |  |  |  |  |  | 950 => 'extra black', | 
| 62 |  |  |  |  |  |  | 950 => 'ultra black', | 
| 63 |  |  |  |  |  |  | ]; | 
| 64 |  |  |  |  |  |  |  | 
| 65 |  |  |  |  |  |  | =head2 METHODS | 
| 66 |  |  |  |  |  |  |  | 
| 67 |  |  |  |  |  |  | =over | 
| 68 |  |  |  |  |  |  |  | 
| 69 |  |  |  |  |  |  | =item new( [ atts... ] ) | 
| 70 |  |  |  |  |  |  |  | 
| 71 |  |  |  |  |  |  | For convenience only. Text::Layout::FontConfig is a singleton. | 
| 72 |  |  |  |  |  |  | Creating objects with new() will always return the same object. | 
| 73 |  |  |  |  |  |  |  | 
| 74 |  |  |  |  |  |  | Attributes: | 
| 75 |  |  |  |  |  |  |  | 
| 76 |  |  |  |  |  |  | =over | 
| 77 |  |  |  |  |  |  |  | 
| 78 |  |  |  |  |  |  | =item corefonts | 
| 79 |  |  |  |  |  |  |  | 
| 80 |  |  |  |  |  |  | If true, a predefined set of font names (the PDF corefonts) is registered. | 
| 81 |  |  |  |  |  |  |  | 
| 82 |  |  |  |  |  |  | =back | 
| 83 |  |  |  |  |  |  |  | 
| 84 |  |  |  |  |  |  | =back | 
| 85 |  |  |  |  |  |  |  | 
| 86 |  |  |  |  |  |  | =cut | 
| 87 |  |  |  |  |  |  |  | 
| 88 |  |  |  |  |  |  | sub new { | 
| 89 | 4 |  |  | 4 | 1 | 1251 | my ( $pkg, %atts ) = @_; | 
| 90 | 4 |  |  |  |  | 15 | my $self = bless \my $i => $pkg; | 
| 91 | 4 | 100 |  |  |  | 21 | if ( $atts{corefonts} ) { | 
| 92 | 2 |  |  |  |  | 10 | $self->register_corefonts; | 
| 93 |  |  |  |  |  |  | } | 
| 94 | 4 | 50 |  |  |  | 17 | if ( $atts{loader} ) { | 
| 95 | 0 |  |  |  |  | 0 | $loader = $atts{loader}; | 
| 96 |  |  |  |  |  |  | } | 
| 97 | 4 |  |  |  |  | 26 | return $self; | 
| 98 |  |  |  |  |  |  | } | 
| 99 |  |  |  |  |  |  |  | 
| 100 |  |  |  |  |  |  | sub reset { | 
| 101 | 2 |  |  | 2 | 0 | 5 | my ( $self ) = @_; | 
| 102 | 2 |  |  |  |  | 4 | %fonts = (); | 
| 103 | 2 |  |  |  |  | 8 | @dirs = (); | 
| 104 |  |  |  |  |  |  | } | 
| 105 |  |  |  |  |  |  |  | 
| 106 |  |  |  |  |  |  | =over | 
| 107 |  |  |  |  |  |  |  | 
| 108 |  |  |  |  |  |  | =item register_fonts( $font, $family, $style [ , $weight ] [ , $props ] ) | 
| 109 |  |  |  |  |  |  |  | 
| 110 |  |  |  |  |  |  | Registers a font fmaily, style and weight for the given font. | 
| 111 |  |  |  |  |  |  |  | 
| 112 |  |  |  |  |  |  | $font can be the name of a built-in font, or the name of a TrueType or | 
| 113 |  |  |  |  |  |  | OpenType font file. | 
| 114 |  |  |  |  |  |  |  | 
| 115 |  |  |  |  |  |  | $family is a font family name such as C, C, C, or | 
| 116 |  |  |  |  |  |  | C. It is possible to specify multiple family names, e.g., | 
| 117 |  |  |  |  |  |  | C. | 
| 118 |  |  |  |  |  |  |  | 
| 119 |  |  |  |  |  |  | $style is the slant style, one of C, C, or C. | 
| 120 |  |  |  |  |  |  |  | 
| 121 |  |  |  |  |  |  | $weight is the font weight, like C, or C. | 
| 122 |  |  |  |  |  |  |  | 
| 123 |  |  |  |  |  |  | For convenience, style combinations like "bolditalic" are allowed. | 
| 124 |  |  |  |  |  |  |  | 
| 125 |  |  |  |  |  |  | A final hash reference can be passed to specify additional properties | 
| 126 |  |  |  |  |  |  | for this font. Recognized properties are: | 
| 127 |  |  |  |  |  |  |  | 
| 128 |  |  |  |  |  |  | =over | 
| 129 |  |  |  |  |  |  |  | 
| 130 |  |  |  |  |  |  | =item * | 
| 131 |  |  |  |  |  |  |  | 
| 132 |  |  |  |  |  |  | C - If set to a true value, this font will require text | 
| 133 |  |  |  |  |  |  | shaping. This is required for fonts that deal with complex glyph | 
| 134 |  |  |  |  |  |  | rendering and ligature handling like Devanagari. | 
| 135 |  |  |  |  |  |  |  | 
| 136 |  |  |  |  |  |  | Text shaping requires module L. | 
| 137 |  |  |  |  |  |  |  | 
| 138 |  |  |  |  |  |  | =item * | 
| 139 |  |  |  |  |  |  |  | 
| 140 |  |  |  |  |  |  | C - If set to a true value, an alternative way to determine | 
| 141 |  |  |  |  |  |  | glyph height is used. This may improve results for some fonts. | 
| 142 |  |  |  |  |  |  |  | 
| 143 |  |  |  |  |  |  | =item * | 
| 144 |  |  |  |  |  |  |  | 
| 145 |  |  |  |  |  |  | C, C - Overrides the font | 
| 146 |  |  |  |  |  |  | specified or calculated values for underline thickness and/or position. | 
| 147 |  |  |  |  |  |  | This may improve results for some fonts. | 
| 148 |  |  |  |  |  |  |  | 
| 149 |  |  |  |  |  |  | =item * | 
| 150 |  |  |  |  |  |  |  | 
| 151 |  |  |  |  |  |  | C, C - Overrides the font | 
| 152 |  |  |  |  |  |  | specified or calculated values for strikeline thickness and/or position. | 
| 153 |  |  |  |  |  |  | This may improve results for some fonts. | 
| 154 |  |  |  |  |  |  |  | 
| 155 |  |  |  |  |  |  | Note that strikeline thickness will default to underline thickness, if set. | 
| 156 |  |  |  |  |  |  |  | 
| 157 |  |  |  |  |  |  | =item * | 
| 158 |  |  |  |  |  |  |  | 
| 159 |  |  |  |  |  |  | C, C - Overrides the font | 
| 160 |  |  |  |  |  |  | specified or calculated values for overline thickness and/or position. | 
| 161 |  |  |  |  |  |  |  | 
| 162 |  |  |  |  |  |  | This may improve results for some fonts. | 
| 163 |  |  |  |  |  |  |  | 
| 164 |  |  |  |  |  |  | Note that overline thickness will default to underline thickness, if | 
| 165 |  |  |  |  |  |  | set. | 
| 166 |  |  |  |  |  |  |  | 
| 167 |  |  |  |  |  |  | =back | 
| 168 |  |  |  |  |  |  |  | 
| 169 |  |  |  |  |  |  | =back | 
| 170 |  |  |  |  |  |  |  | 
| 171 |  |  |  |  |  |  | =cut | 
| 172 |  |  |  |  |  |  |  | 
| 173 |  |  |  |  |  |  | sub register_font { | 
| 174 | 54 | 100 |  | 54 | 0 | 469 | shift if UNIVERSAL::isa( $_[0], __PACKAGE__ ); | 
| 175 | 54 |  |  |  |  | 61 | my $props; | 
| 176 | 54 | 50 |  |  |  | 144 | $props = pop(@_) if UNIVERSAL::isa( $_[-1], 'HASH' ); | 
| 177 | 54 |  |  |  |  | 95 | my ( $font, $family, $style, $weight ) = @_; | 
| 178 |  |  |  |  |  |  |  | 
| 179 | 54 | 100 | 66 |  |  | 244 | if ( $style && !$weight && $style =~ s/^(heavy|bold|semi(?:bold)?|medium|book|light)//i ) { | 
|  |  |  | 100 |  |  |  |  | 
| 180 | 24 |  |  |  |  | 49 | $weight = $1; | 
| 181 |  |  |  |  |  |  | } | 
| 182 | 54 |  | 100 |  |  | 142 | $style  = _norm_style( $style   // "normal" ); | 
| 183 | 54 |  | 100 |  |  | 141 | $weight = _norm_weight( $weight // "normal" ); | 
| 184 | 54 |  |  |  |  | 75 | my $ff; | 
| 185 | 54 | 50 |  |  |  | 93 | if ( $font =~ /\.[ot]tf$/ ) { | 
| 186 | 0 | 0 |  |  |  | 0 | if ( $font =~ m;^/; ) { | 
| 187 | 0 | 0 |  |  |  | 0 | $ff = $font if -r -s $font; | 
| 188 |  |  |  |  |  |  | } | 
| 189 |  |  |  |  |  |  | else { | 
| 190 | 0 |  |  |  |  | 0 | foreach ( @dirs ) { | 
| 191 | 0 | 0 |  |  |  | 0 | next unless -r -s "$_/$font"; | 
| 192 | 0 |  |  |  |  | 0 | $ff = "$_/$font"; | 
| 193 | 0 |  |  |  |  | 0 | last; | 
| 194 |  |  |  |  |  |  | } | 
| 195 |  |  |  |  |  |  | } | 
| 196 |  |  |  |  |  |  | } | 
| 197 |  |  |  |  |  |  | else { | 
| 198 |  |  |  |  |  |  | # Assume corefont. | 
| 199 | 54 |  |  |  |  | 59 | $ff = $font | 
| 200 |  |  |  |  |  |  | } | 
| 201 |  |  |  |  |  |  |  | 
| 202 | 54 | 50 |  |  |  | 82 | croak("Cannot find font: ", $font, "\n") unless $ff; | 
| 203 |  |  |  |  |  |  |  | 
| 204 | 54 |  |  |  |  | 124 | foreach ( split(/\s*,\s*/, $family) ) { | 
| 205 | 54 |  |  |  |  | 175 | $fonts{lc $_}->{$style}->{$weight}->{loader} = $loader; | 
| 206 | 54 |  |  |  |  | 99 | $fonts{lc $_}->{$style}->{$weight}->{loader_data} = $ff; | 
| 207 | 54 | 50 |  |  |  | 119 | next unless $props; | 
| 208 | 0 |  |  |  |  | 0 | while ( my($k,$v) = each %$props ) { | 
| 209 | 0 |  |  |  |  | 0 | $fonts{lc $_}->{$style}->{$weight}->{$k} = $v; | 
| 210 |  |  |  |  |  |  | } | 
| 211 |  |  |  |  |  |  | } | 
| 212 |  |  |  |  |  |  |  | 
| 213 |  |  |  |  |  |  | } | 
| 214 |  |  |  |  |  |  |  | 
| 215 |  |  |  |  |  |  | =over | 
| 216 |  |  |  |  |  |  |  | 
| 217 |  |  |  |  |  |  | =item add_fontdirs( @dirs ) | 
| 218 |  |  |  |  |  |  |  | 
| 219 |  |  |  |  |  |  | Adds one or more file paths to be searched for font files. | 
| 220 |  |  |  |  |  |  |  | 
| 221 |  |  |  |  |  |  | =back | 
| 222 |  |  |  |  |  |  |  | 
| 223 |  |  |  |  |  |  | =cut | 
| 224 |  |  |  |  |  |  |  | 
| 225 |  |  |  |  |  |  | sub add_fontdirs { | 
| 226 | 0 | 0 |  | 0 | 1 | 0 | shift if UNIVERSAL::isa( $_[0], __PACKAGE__ ); | 
| 227 | 0 |  |  |  |  | 0 | my ( @d ) = @_; | 
| 228 |  |  |  |  |  |  |  | 
| 229 | 0 |  |  |  |  | 0 | foreach ( @d ) { | 
| 230 | 0 | 0 |  |  |  | 0 | unless ( -d -r -x ) { | 
| 231 | 0 |  |  |  |  | 0 | carp("Skipped font dir: $_ [$!]"); | 
| 232 | 0 |  |  |  |  | 0 | next; | 
| 233 |  |  |  |  |  |  | } | 
| 234 | 0 |  |  |  |  | 0 | push( @dirs, $_ ); | 
| 235 |  |  |  |  |  |  | } | 
| 236 |  |  |  |  |  |  | } | 
| 237 |  |  |  |  |  |  |  | 
| 238 |  |  |  |  |  |  | =over | 
| 239 |  |  |  |  |  |  |  | 
| 240 |  |  |  |  |  |  | =item register_aliases( $family, $aliases, ... ) | 
| 241 |  |  |  |  |  |  |  | 
| 242 |  |  |  |  |  |  | Adds aliases for existing font families. | 
| 243 |  |  |  |  |  |  |  | 
| 244 |  |  |  |  |  |  | Multiple aliases can be specified, e.g. | 
| 245 |  |  |  |  |  |  |  | 
| 246 |  |  |  |  |  |  | $layout->register_aliases( "times", "serif, default" ); | 
| 247 |  |  |  |  |  |  |  | 
| 248 |  |  |  |  |  |  | or | 
| 249 |  |  |  |  |  |  |  | 
| 250 |  |  |  |  |  |  | $layout->register_aliases( "times", "serif", "default" ); | 
| 251 |  |  |  |  |  |  |  | 
| 252 |  |  |  |  |  |  | =back | 
| 253 |  |  |  |  |  |  |  | 
| 254 |  |  |  |  |  |  | =cut | 
| 255 |  |  |  |  |  |  |  | 
| 256 |  |  |  |  |  |  | sub register_aliases { | 
| 257 | 8 | 50 |  | 8 | 1 | 28 | shift if UNIVERSAL::isa( $_[0], __PACKAGE__ ); | 
| 258 | 8 |  |  |  |  | 19 | my ( $family, @aliases ) = @_; | 
| 259 |  |  |  |  |  |  | carp("Unknown font family: $family") | 
| 260 | 8 | 50 |  |  |  | 19 | unless exists $fonts{lc $family}; | 
| 261 | 8 |  |  |  |  | 14 | foreach ( @aliases ) { | 
| 262 | 18 |  |  |  |  | 34 | foreach ( split( /\s*,\s*/, $_ ) ) { | 
| 263 | 18 |  |  |  |  | 43 | $fonts{lc $_} = $fonts{lc $family}; | 
| 264 |  |  |  |  |  |  | } | 
| 265 |  |  |  |  |  |  | } | 
| 266 |  |  |  |  |  |  | } | 
| 267 |  |  |  |  |  |  |  | 
| 268 |  |  |  |  |  |  | =over | 
| 269 |  |  |  |  |  |  |  | 
| 270 |  |  |  |  |  |  | =item register_corefonts( $noaliases ) | 
| 271 |  |  |  |  |  |  |  | 
| 272 |  |  |  |  |  |  | This is a convenience method that registers all built-in corefonts. | 
| 273 |  |  |  |  |  |  |  | 
| 274 |  |  |  |  |  |  | Aliases for families C, C, and C are added | 
| 275 |  |  |  |  |  |  | unless $noaliases is specified. | 
| 276 |  |  |  |  |  |  |  | 
| 277 |  |  |  |  |  |  | You do not need to call this method if you provide your own font | 
| 278 |  |  |  |  |  |  | registrations. | 
| 279 |  |  |  |  |  |  |  | 
| 280 |  |  |  |  |  |  | =back | 
| 281 |  |  |  |  |  |  |  | 
| 282 |  |  |  |  |  |  | =cut | 
| 283 |  |  |  |  |  |  |  | 
| 284 |  |  |  |  |  |  | sub register_corefonts { | 
| 285 | 2 | 50 |  | 2 | 1 | 18 | shift if UNIVERSAL::isa( $_[0], __PACKAGE__ ); | 
| 286 | 2 |  |  |  |  | 7 | my ( $noaliases ) = @_; | 
| 287 |  |  |  |  |  |  |  | 
| 288 | 2 |  |  |  |  | 6 | register_font( "Times-Roman",           "Times"                ); | 
| 289 | 2 |  |  |  |  | 8 | register_font( "Times-Bold",            "Times", "Bold"        ); | 
| 290 | 2 |  |  |  |  | 6 | register_font( "Times-Italic",          "Times", "Italic"      ); | 
| 291 | 2 |  |  |  |  | 6 | register_font( "Times-BoldItalic",      "Times", "BoldItalic"  ); | 
| 292 |  |  |  |  |  |  |  | 
| 293 | 2 | 50 |  |  |  | 21 | register_aliases( "Times", "Serif" ) | 
| 294 |  |  |  |  |  |  | unless $noaliases; | 
| 295 |  |  |  |  |  |  |  | 
| 296 | 2 |  |  |  |  | 6 | register_font( "Helvetica",             "Helvetica"                 ); | 
| 297 | 2 |  |  |  |  | 6 | register_font( "Helvetica-Bold",        "Helvetica",  "Bold"        ); | 
| 298 | 2 |  |  |  |  | 6 | register_font( "Helvetica-Oblique",     "Helvetica",  "Oblique"     ); | 
| 299 | 2 |  |  |  |  | 7 | register_font( "Helvetica-BoldOblique", "Helvetica",  "BoldOblique" ); | 
| 300 |  |  |  |  |  |  |  | 
| 301 | 2 | 50 |  |  |  | 19 | register_aliases( "Helvetica", "Sans", "Arial" ) | 
| 302 |  |  |  |  |  |  | unless $noaliases; | 
| 303 |  |  |  |  |  |  |  | 
| 304 | 2 |  |  |  |  | 5 | register_font( "Courier",               "Courier"                 ); | 
| 305 | 2 |  |  |  |  | 6 | register_font( "Courier-Bold",          "Courier",  "Bold"        ); | 
| 306 | 2 |  |  |  |  | 7 | register_font( "Courier-Oblique",       "Courier",  "Italic"      ); | 
| 307 | 2 |  |  |  |  | 16 | register_font( "Courier-BoldOblique",   "Courier",  "BoldItalic"  ); | 
| 308 |  |  |  |  |  |  |  | 
| 309 | 2 | 50 |  |  |  | 10 | register_aliases( "Courier", "Mono", "Monospace", "fixed" ) | 
| 310 |  |  |  |  |  |  | unless $noaliases; | 
| 311 | 2 | 50 |  |  |  | 7 | register_aliases( "Courier", "Mono", "Monospace", "fixed" ) | 
| 312 |  |  |  |  |  |  | unless $noaliases; | 
| 313 |  |  |  |  |  |  |  | 
| 314 | 2 |  |  |  |  | 5 | register_font( "ZapfDingbats",          "Dingbats"                ); | 
| 315 |  |  |  |  |  |  |  | 
| 316 | 2 |  |  |  |  | 7 | register_font( "Georgia",               "Georgia"                ); | 
| 317 | 2 |  |  |  |  | 6 | register_font( "Georgia,Bold",          "Georgia",  "Bold"        ); | 
| 318 | 2 |  |  |  |  | 13 | register_font( "Georgia,Italic",        "Georgia",  "Italic"      ); | 
| 319 | 2 |  |  |  |  | 6 | register_font( "Georgia,BoldItalic",    "Georgia",  "BoldItalic"  ); | 
| 320 |  |  |  |  |  |  |  | 
| 321 | 2 |  |  |  |  | 5 | register_font( "Verdana",               "Verdana"                ); | 
| 322 | 2 |  |  |  |  | 6 | register_font( "Verdana,Bold",          "Verdana",  "Bold"        ); | 
| 323 | 2 |  |  |  |  | 5 | register_font( "Verdana,Italic",        "Verdana",  "Italic"      ); | 
| 324 | 2 |  |  |  |  | 15 | register_font( "Verdana,BoldItalic",    "Verdana",  "BoldItalic"  ); | 
| 325 |  |  |  |  |  |  |  | 
| 326 | 2 |  |  |  |  | 5 | register_font( "WebDings",              "WebDings"                ); | 
| 327 | 2 |  |  |  |  | 5 | register_font( "WingDings",             "WingDings"               ); | 
| 328 |  |  |  |  |  |  | } | 
| 329 |  |  |  |  |  |  |  | 
| 330 |  |  |  |  |  |  | =over | 
| 331 |  |  |  |  |  |  |  | 
| 332 |  |  |  |  |  |  | =item find_font( $family, $style, $weight ) | 
| 333 |  |  |  |  |  |  |  | 
| 334 |  |  |  |  |  |  | Returns a font descriptor based on the given family, style and weight. | 
| 335 |  |  |  |  |  |  |  | 
| 336 |  |  |  |  |  |  | On Linux, fallback using fontconfig. | 
| 337 |  |  |  |  |  |  |  | 
| 338 |  |  |  |  |  |  | =back | 
| 339 |  |  |  |  |  |  |  | 
| 340 |  |  |  |  |  |  | =cut | 
| 341 |  |  |  |  |  |  |  | 
| 342 |  |  |  |  |  |  | sub find_font { | 
| 343 | 21 | 100 |  | 21 | 1 | 88 | shift if UNIVERSAL::isa( $_[0], __PACKAGE__ ); | 
| 344 | 21 |  |  |  |  | 27 | my $atts; | 
| 345 | 21 | 50 |  |  |  | 75 | $atts = pop(@_) if UNIVERSAL::isa( $_[-1], 'HASH' ); | 
| 346 | 21 |  |  |  |  | 48 | my ( $family, $style, $weight ) = @_; | 
| 347 |  |  |  |  |  |  |  | 
| 348 |  |  |  |  |  |  | my $try = sub { | 
| 349 | 21 | 50 | 33 | 21 |  | 164 | if ( $fonts{$family} | 
|  |  |  | 33 |  |  |  |  | 
| 350 |  |  |  |  |  |  | && $fonts{$family}->{$style} | 
| 351 |  |  |  |  |  |  | && $fonts{$family}->{$style}->{$weight} ) { | 
| 352 |  |  |  |  |  |  |  | 
| 353 | 21 |  |  |  |  | 45 | my $ff = $fonts{$family}->{$style}->{$weight}; | 
| 354 | 21 |  |  |  |  | 93 | my %i = ( family => $family, | 
| 355 |  |  |  |  |  |  | style  => $style, | 
| 356 |  |  |  |  |  |  | weight => $weight ); | 
| 357 |  |  |  |  |  |  | ; | 
| 358 | 21 | 50 |  |  |  | 87 | if ( $ff->{font} ) { | 
|  |  | 50 |  |  |  |  |  | 
| 359 | 0 |  |  |  |  | 0 | $i{font} = $ff->{font}; | 
| 360 |  |  |  |  |  |  | } | 
| 361 |  |  |  |  |  |  | elsif ( $ff->{loader_data} ) { | 
| 362 | 21 |  |  |  |  | 38 | $i{loader_data} = $ff->{loader_data}; | 
| 363 | 21 |  |  |  |  | 33 | $i{loader}      = $loader; | 
| 364 | 21 |  |  |  |  | 39 | $i{cache}       = $ff; | 
| 365 |  |  |  |  |  |  | } | 
| 366 |  |  |  |  |  |  | else { | 
| 367 | 0 |  |  |  |  | 0 | return; | 
| 368 |  |  |  |  |  |  | } | 
| 369 |  |  |  |  |  |  |  | 
| 370 | 21 |  |  |  |  | 44 | for ( qw( shaping interline nosubset direction language | 
| 371 |  |  |  |  |  |  | underline_thickness underline_position | 
| 372 |  |  |  |  |  |  | strikeline_thickness strikeline_position | 
| 373 |  |  |  |  |  |  | overline_thickness overline_position | 
| 374 |  |  |  |  |  |  | ) ) { | 
| 375 | 231 |  |  |  |  | 399 | $i{$_} = $ff->{$_}; | 
| 376 |  |  |  |  |  |  | } | 
| 377 |  |  |  |  |  |  |  | 
| 378 | 21 |  |  |  |  | 160 | return Text::Layout::FontDescriptor->new(%i); | 
| 379 |  |  |  |  |  |  | } | 
| 380 | 21 |  |  |  |  | 97 | }; | 
| 381 |  |  |  |  |  |  |  | 
| 382 | 21 |  | 50 |  |  | 64 | $style  = _norm_style( $style   // "normal" ); | 
| 383 | 21 |  | 50 |  |  | 76 | $weight = _norm_weight( $weight // "normal" ); | 
| 384 | 21 |  |  |  |  | 76 | my $res = $try->(); | 
| 385 | 21 | 50 |  |  |  | 151 | return $res if $res; | 
| 386 |  |  |  |  |  |  |  | 
| 387 |  |  |  |  |  |  | # TODO: Some form of font fallback. | 
| 388 | 0 | 0 |  |  |  | 0 | if ( _fallback( $family, $style, $weight ) ) { | 
| 389 | 0 |  |  |  |  | 0 | $res = $try->(); | 
| 390 | 0 | 0 |  |  |  | 0 | return $res if $res; | 
| 391 |  |  |  |  |  |  | } | 
| 392 |  |  |  |  |  |  |  | 
| 393 |  |  |  |  |  |  | # Nope. | 
| 394 | 0 |  |  |  |  | 0 | croak("Cannot find font: $family $style $weight\n"); | 
| 395 |  |  |  |  |  |  | } | 
| 396 |  |  |  |  |  |  |  | 
| 397 |  |  |  |  |  |  | =over | 
| 398 |  |  |  |  |  |  |  | 
| 399 |  |  |  |  |  |  | =item from_string( $description ) | 
| 400 |  |  |  |  |  |  |  | 
| 401 |  |  |  |  |  |  | Returns a font descriptor using a Pango-style font description, e.g. | 
| 402 |  |  |  |  |  |  | C. | 
| 403 |  |  |  |  |  |  |  | 
| 404 |  |  |  |  |  |  | On Linux, fallback using fontconfig. | 
| 405 |  |  |  |  |  |  |  | 
| 406 |  |  |  |  |  |  | =back | 
| 407 |  |  |  |  |  |  |  | 
| 408 |  |  |  |  |  |  | =cut | 
| 409 |  |  |  |  |  |  |  | 
| 410 |  |  |  |  |  |  | my $stylep  = qr/^( (?:heavy|bold|semi(?:bold)?|medium|book|light)? (?:oblique|italic)  )$/ix; | 
| 411 |  |  |  |  |  |  | my $weightp = qr/^( (?:heavy|bold|semi(?:bold)?|medium|book|light)  (?:oblique|italic)? )$/ix; | 
| 412 |  |  |  |  |  |  |  | 
| 413 |  |  |  |  |  |  | sub from_string { | 
| 414 | 5 | 50 |  | 5 | 1 | 81 | shift if UNIVERSAL::isa( $_[0], __PACKAGE__ ); | 
| 415 | 5 |  |  |  |  | 21 | my ( $description ) = @_; | 
| 416 |  |  |  |  |  |  |  | 
| 417 | 5 |  |  |  |  | 16 | my $i = parse($description); | 
| 418 |  |  |  |  |  |  |  | 
| 419 | 5 |  |  |  |  | 51 | my $res = find_font( $i->{family}, $i->{style}, $i->{weight} ); | 
| 420 | 5 | 50 | 33 |  |  | 16 | $res->set_size($i->{size}) if $res && $i->{size}; | 
| 421 | 5 |  |  |  |  | 31 | $res; | 
| 422 |  |  |  |  |  |  | } | 
| 423 |  |  |  |  |  |  |  | 
| 424 |  |  |  |  |  |  | =over | 
| 425 |  |  |  |  |  |  |  | 
| 426 |  |  |  |  |  |  | =item parse( $description ) | 
| 427 |  |  |  |  |  |  |  | 
| 428 |  |  |  |  |  |  | Parses a Pango-style font description and returns a hash ref with keys | 
| 429 |  |  |  |  |  |  | C, C |