SDL::Pango - Text rendering engine

       See "AUTHORS" in SDL.

       Pango

       The constants are exported by default. You can avoid this by doing:

        use SDL::Pango ();

       and access them directly:

        SDL::Pango::SDLPANGO_DIRECTION_NEUTRAL;

       or by choosing the export tags below:

       Export tag: ':align'

       SDLPANGO_ALIGN_LEFT
           Left alignment

       SDLPANGO_ALIGN_CENTER
           Centered

       SDLPANGO_ALIGN_RIGHT
           Right alignment

       Export tag: ':direction'

       SDLPANGO_DIRECTION_LTR
           Left to right

       SDLPANGO_DIRECTION_RTL
           Right to left

       SDLPANGO_DIRECTION_WEAK_LTR
           Left to right (weak)

       SDLPANGO_DIRECTION_WEAK_RTL
           Right to left (weak)

       SDLPANGO_DIRECTION_NEUTRAL
           Neutral

init
        SDL::Pango::init();

       Initialize  the  Glib  and  Pango  API. This must be called before using other functions in this library,
       excepting SDL::Pango::was_init.  SDL does not have to be initialized before this call.

       Returns: always 0.

   was_init
        my $was_init = SDL::Pango::was_init();

       Query the initialization status of the  Glib  and  Pango  API.  You  may,  of  course,  use  this  before
       SDL::Pango::init to avoid initializing twice in a row.

       Returns: Non-zero when already initialized. Zero when not initialized.

   set_default_color
        SDL::Pango::set_default_color($context, $foreground, $background);
        SDL::Pango::set_default_color($context, $r1, $g1, $b1, $a1, $r2, $g2, $b2, $a2);

       Sets default foreground and background color when rendering text and markup.

       You  can  call  it with either 2 color-parameters (32-bit RRGGBBAA values), or with 4 separate values for
       foreground and 4 separate values for background.

   set_minimum_size
        SDL::Pango::set_minimum_size($context, $width, $height);

       Sets the minimum size of the drawing rectangle.

   set_text
        SDL::Pango::set_text($context, $text, $length);
        SDL::Pango::set_text($context, $text, $length, $alignment);

       Set plain text to context. Text must be utf-8. $length chars will be rendered,  pass  -1  to  render  the
       whole text.

       $alignment can be:

       •   SDLPANGO_ALIGN_LEFT (default)

       •   SDLPANGO_ALIGN_CENTER

       •   SDLPANGO_ALIGN_RIGHT

   set_markup
        SDL::Pango::set_markup($context, $text, $length);

       Set  markup  text  to  context. Text must be utf-8. $length chars will be rendered, pass -1 to render the
       whole text.

       See  PangoMarkupFormat   <http://library.gnome.org/devel/pango/unstable/PangoMarkupFormat.html>   for   a
       description about the markup format.

   get_layout_width
        my $w = SDL::Pango::get_layout_width($context);

       Returns the width of the resulting surface of the given text/markup for this context.

   get_layout_height
        my $h = SDL::Pango::get_layout_height($context);

       Returns the height of the resulting surface of the given text/markup for this context.

   set_base_direction
        SDL::Pango::set_base_direction($context, $direction);

       Sets the direction of the text to either left-to-right or right-to-left.

       See "CONSTANTS".

   set_dpi
        SDL::Pango::set_dpi($context, $dpi_x, $dpi_y);

       Sets the DPI (dots per inch) for this context. Default is 96.

   set_language
        SDL::Pango::set_language($context, $language);

       Sets the language name for this context.

       See ISO639-2 <http://www.loc.gov/standards/iso639-2/php/code_list.php>.

       Example:

        SDL::Pango::set_language($context, "en");

   draw
        SDL::Pango::draw($context, $display, $x, $y);

       Draws the text or markup to an existing surface at position $x/$y.

   set_surface_create_args
        SDL::Pango::set_surface_create_args($context, $flags, $bits, $r_mask, $g_mask, $b_mask, $a_mask);

       Sets the argument that are used when creating a surface via SDL::Pango::create_surface_draw.

       Example:

        SDL::Pango::set_surface_create_args(
            $context,
            SDL_SWSURFACE,
            32,
            0xFF000000,
            0x00FF0000,
            0x0000FF00,
            0x000000FF
        );

   create_surface_draw
        my $surface = SDL::Pango::create_surface_draw($context);

       Creates  a  new  surface  and draws the text/markup. You can specify the attributes of the surfaces using
       SDL::Pango::set_surface_create_args.

       SDL::Pango - Text rendering engine

       SDL::Pango::Context, SDL::Video, SDL::Surface, SDL::TTF

perl v5.40.0                                       2024-10-20                              pods::SDL::Pango(3pm)

        use SDL;
        use SDL::Color;
        use SDL::Surface;
        use SDL::Overlay;
        use SDL::Rect;
        use SDL::Video;
        use SDL::PixelFormat;
        use SDL::Pango;
        use SDL::Pango::Context;

        SDL::Pango::init();

        my $context = SDL::Pango::Context->new;
        SDL::Pango::set_default_color($context, 0xA7C344FF, 0);
        SDL::Pango::set_markup($context, 'Hello <b>W<span foreground="red">o</span><i>r</i><u>l</u>d</b>!', -1);

        SDL::init(SDL_INIT_VIDEO);

        my $display = SDL::Video::set_video_mode(640, 480, 32, SDL_SWSURFACE);
        my $bg      = SDL::Video::map_RGB($display->format, 0x12, 0x22, 0x45);
        SDL::Video::fill_rect($display, SDL::Rect->new(0, 0, 640, 480), $bg);

        my $surface = SDL::Pango::create_surface_draw($context);
        SDL::Video::blit_surface($surface, SDL::Rect->new(0, 0, 640, 480), $display, SDL::Rect->new(0, 0, 640, 480));

        SDL::Video::update_rect($display, 0, 0, 0, 0);
        SDL::delay(2000);