static VALUE
accept_charset(int argc, VALUE *argv, VALUE self)
{
if (argc > 0)
return argv[0];
return rb_cvar_get(CLASS_OF(self), id_accept_charset);
}
static void
screen_func(GdkScreen *screen, const GdkColor *colors, gint n_colors)
{
int i;
VALUE func = rb_cvar_get(RG_TARGET_NAMESPACE, rb_intern("__palette_proc__"));
VALUE ary = rb_ary_new();
for (i = 0; i < n_colors; i++){
ary = rb_ary_push(ary, GDKCOLOR2RVAL((GdkColor *)&colors[i]));
}
if (! NIL_P(func))
rb_funcall(func, id_call, 2, GOBJ2RVAL(screen), ary);
}
static VALUE
rb_cHook_register(VALUE klass, VALUE hook)
{
VALUE ary;
if(!NIL_P(hook)) {
ary = rb_cvar_get(klass, rb_intern("_hooks"));
rb_ary_push(ary, hook);
}
return hook;
}
static VALUE
struct_class_layout(VALUE klass)
{
VALUE layout;
if (!rb_cvar_defined(klass, id_layout_ivar)) {
rb_raise(rb_eRuntimeError, "no Struct layout configured for %s", rb_class2name(klass));
}
layout = rb_cvar_get(klass, id_layout_ivar);
if (!rb_obj_is_kind_of(layout, rbffi_StructLayoutClass)) {
rb_raise(rb_eRuntimeError, "invalid Struct layout for %s", rb_class2name(klass));
}
return layout;
}
static VALUE class_spec_cvar_get(VALUE self, VALUE klass, VALUE name) {
return rb_cvar_get(klass, rb_intern(StringValuePtr(name)));
}
static VALUE rb_eu_get_html_secure(VALUE self)
{
return rb_cvar_get(self, rb_html_secure);
}
void Init_Color( void )
{
/* SFML namespace which contains the classes of this module. */
VALUE sfml = rb_define_module( "SFML" );
/* Utility class for manpulating RGBA colors.
*
* SFML::Color is a simple color class composed of 4 components:
*
* - Red
* - Green
* - Blue
* - Alpha (opacity)
*
* Each component is a public member, an unsigned integer in the range [0, 255]. Thus, colors can be constructed and manipulated very easily:
*
* c1 = SFML::Color.new(255, 0, 0) # red
* c1.red = 0 # make it black
* c1.blue = 128 # make it dark blue
*
* The fourth component of colors, named "alpha", represents the opacity of the color. A color with an alpha value of
* 255 will be fully opaque, while an alpha value of 0 will make a color fully transparent, whatever the value of the
* other components.
*
* The most common colors are already defined as class constants:
*
* black = SFML::Color::Black
* white = SFML::Color::White
* red = SFML::Color::Red
* green = SFML::Color::Green
* blue = SFML::Color::Blue
* yellow = SFML::Color::Yellow
* magenta = SFML::Color::Magenta
* cyan = SFML::Color::Cyan
*
* Colors can also be added and modulated (multiplied) using the overloaded operators + and *.
*/
globalColorClass = rb_define_class_under( sfml, "Color", rb_cObject );
// Instance methods
rb_define_method( globalColorClass, "initialize", Color_Initialize, -1 );
rb_define_method( globalColorClass, "+", Color_Add, 1 );
rb_define_method( globalColorClass, "*", Color_Multiply, 1 );
rb_define_method( globalColorClass, "==", Color_Equal, 1 );
// Attribute accessors
rb_define_attr( globalColorClass, "r", 1, 1 );
rb_define_attr( globalColorClass, "g", 1, 1 );
rb_define_attr( globalColorClass, "b", 1, 1 );
rb_define_attr( globalColorClass, "a", 1, 1 );
// Class constants
rb_define_const( globalColorClass, "Black", rb_funcall( globalColorClass, rb_intern( "new" ), 3, INT2FIX( 0 ), INT2FIX( 0 ), INT2FIX( 0 ) ) );
rb_define_const( globalColorClass, "White", rb_funcall( globalColorClass, rb_intern( "new" ), 3, INT2FIX( 255 ), INT2FIX( 255 ), INT2FIX( 255 ) ) );
rb_define_const( globalColorClass, "Red", rb_funcall( globalColorClass, rb_intern( "new" ), 3, INT2FIX( 255 ), INT2FIX( 0 ), INT2FIX( 0 ) ) );
rb_define_const( globalColorClass, "Green", rb_funcall( globalColorClass, rb_intern( "new" ), 3, INT2FIX( 0 ), INT2FIX( 255 ), INT2FIX( 0 ) ) );
rb_define_const( globalColorClass, "Blue", rb_funcall( globalColorClass, rb_intern( "new" ), 3, INT2FIX( 0 ), INT2FIX( 0 ), INT2FIX( 255 ) ) );
rb_define_const( globalColorClass, "Yellow", rb_funcall( globalColorClass, rb_intern( "new" ), 3, INT2FIX( 255 ), INT2FIX( 255 ), INT2FIX( 0 ) ) );
rb_define_const( globalColorClass, "Magneta", rb_funcall( globalColorClass, rb_intern( "new" ), 3, INT2FIX( 255 ), INT2FIX( 0 ), INT2FIX( 255 ) ) );
rb_define_const( globalColorClass, "Cyan", rb_funcall( globalColorClass, rb_intern( "new" ), 3, INT2FIX( 0 ), INT2FIX( 255 ), INT2FIX( 255 ) ) );
rb_funcall( rb_cvar_get( globalColorClass, rb_intern( "Black" ) ), rb_intern( "freeze" ), 0 );
rb_funcall( rb_cvar_get( globalColorClass, rb_intern( "White" ) ), rb_intern( "freeze" ), 0 );
rb_funcall( rb_cvar_get( globalColorClass, rb_intern( "Red" ) ), rb_intern( "freeze" ), 0 );
rb_funcall( rb_cvar_get( globalColorClass, rb_intern( "Green" ) ), rb_intern( "freeze" ), 0 );
rb_funcall( rb_cvar_get( globalColorClass, rb_intern( "Blue" ) ), rb_intern( "freeze" ), 0 );
rb_funcall( rb_cvar_get( globalColorClass, rb_intern( "Yellow" ) ), rb_intern( "freeze" ), 0 );
rb_funcall( rb_cvar_get( globalColorClass, rb_intern( "Magneta" ) ), rb_intern( "freeze" ), 0 );
rb_funcall( rb_cvar_get( globalColorClass, rb_intern( "Cyan" ) ), rb_intern( "freeze" ), 0 );
}
static VALUE rb_cHook_hooks(VALUE klass)
{
return rb_cvar_get(klass, rb_intern("_hooks"));
}
