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Finished SFML::Color, will still need to add rdoc comments.

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git-svn-id: https://sfml.svn.sourceforge.net/svnroot/sfml/branches/sfml2@1664 4e206d99-4929-0410-ac5d-dfc041789085
This commit is contained in:
groogy 2010-11-16 21:40:47 +00:00
parent a6bceffa43
commit 6f83501b27
2 changed files with 114 additions and 4 deletions
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115
bindings/ruby/sfml-graphics/graphics/Color.cpp
View File

@ -26,15 +26,46 @@
VALUE globalColorClass;
/* Internal function
* Forces the argument someValue to be a Color. IF it can convert it then it will.
* So you can always safely asume that this function returns a Color object.
* If it fails then an exception will be thrown.
*/
VALUE Color_ForceType( VALUE someValue )
{
if( rb_obj_is_kind_of( someValue, rb_cArray ) == Qtrue )
{
VALUE arg1 = rb_ary_entry( someValue, 0 );
VALUE arg2 = rb_ary_entry( someValue, 1 );
VALUE arg3 = rb_ary_entry( someValue, 2 );
if( FIX2INT( rb_funcall( someValue, rb_intern( "size" ), 0 ) ) == 4 )
{
VALUE arg4 = rb_ary_entry( someValue, 3 );
return rb_funcall( globalColorClass, rb_intern( "new" ), 4, arg1, arg2, arg3, arg4 );
}
return rb_funcall( globalColorClass, rb_intern( "new" ), 3, arg1, arg2, arg3 );
}
else if( rb_obj_is_kind_of( someValue, globalColorClass ) == Qtrue )
{
return someValue;
}
else
{
rb_raise( rb_eRuntimeError, "expected Array or Color" );
}
}
/* Internal function
* Will copy the x and y from aSource to self.
*/
static void Color_internal_CopyFrom( VALUE self, VALUE aSource )
{
VALUE r = rb_funcall( aSource, rb_intern( "r" ), 0 );
VALUE g = rb_funcall( aSource, rb_intern( "g" ), 0 );
VALUE b = rb_funcall( aSource, rb_intern( "b" ), 0 );
VALUE a = rb_funcall( aSource, rb_intern( "a" ), 0 );
VALUE sourceVector = Color_ForceType( aSource );
VALUE r = rb_funcall( sourceVector, rb_intern( "r" ), 0 );
VALUE g = rb_funcall( sourceVector, rb_intern( "g" ), 0 );
VALUE b = rb_funcall( sourceVector, rb_intern( "b" ), 0 );
VALUE a = rb_funcall( sourceVector, rb_intern( "a" ), 0 );
rb_funcall( self, rb_intern( "r=" ), 1, r );
rb_funcall( self, rb_intern( "g=" ), 1, g );
@ -42,6 +73,73 @@ static void Color_internal_CopyFrom( VALUE self, VALUE aSource )
rb_funcall( self, rb_intern( "a=" ), 1, a );
}
/* */
static VALUE Color_Add( VALUE self, VALUE aRightOperand )
{
VALUE right = Color_ForceType( aRightOperand );
// Get values
unsigned int leftR = FIX2INT( rb_funcall( self, rb_intern( "r" ), 0 ) );
unsigned int leftG = FIX2INT( rb_funcall( self, rb_intern( "g" ), 0 ) );
unsigned int leftB = FIX2INT( rb_funcall( self, rb_intern( "b" ), 0 ) );
unsigned int leftA = FIX2INT( rb_funcall( self, rb_intern( "a" ), 0 ) );
unsigned int rightR = FIX2INT( rb_funcall( right, rb_intern( "r" ), 0 ) );
unsigned int rightG = FIX2INT( rb_funcall( right, rb_intern( "g" ), 0 ) );
unsigned int rightB = FIX2INT( rb_funcall( right, rb_intern( "b" ), 0 ) );
unsigned int rightA = FIX2INT( rb_funcall( right, rb_intern( "a" ), 0 ) );
// Do calculation
unsigned int newR = MIN( leftR + rightR, 255 );
unsigned int newG = MIN( leftR + rightG, 255 );
unsigned int newB = MIN( leftR + rightB, 255 );
unsigned int newA = MIN( leftR + rightA, 255 );
return rb_funcall( globalColorClass, rb_intern( "new" ), 4, newR, newG, newB, newA );
}
/* */
static VALUE Color_Multiply( VALUE self, VALUE aRightOperand )
{
VALUE right = Color_ForceType( aRightOperand );
// Get values
unsigned int leftR = FIX2INT( rb_funcall( self, rb_intern( "r" ), 0 ) );
unsigned int leftG = FIX2INT( rb_funcall( self, rb_intern( "g" ), 0 ) );
unsigned int leftB = FIX2INT( rb_funcall( self, rb_intern( "b" ), 0 ) );
unsigned int leftA = FIX2INT( rb_funcall( self, rb_intern( "a" ), 0 ) );
unsigned int rightR = FIX2INT( rb_funcall( right, rb_intern( "r" ), 0 ) );
unsigned int rightG = FIX2INT( rb_funcall( right, rb_intern( "g" ), 0 ) );
unsigned int rightB = FIX2INT( rb_funcall( right, rb_intern( "b" ), 0 ) );
unsigned int rightA = FIX2INT( rb_funcall( right, rb_intern( "a" ), 0 ) );
// Do calculation
unsigned int newR = ( leftR * rightR ) / 255;
unsigned int newG = ( leftR * rightG ) / 255;
unsigned int newB = ( leftR * rightB ) / 255;
unsigned int newA = ( leftR * rightA ) / 255;
return rb_funcall( globalColorClass, rb_intern( "new" ), 4, newR, newG, newB, newA );
}
/* */
static VALUE Color_Equal( VALUE self, VALUE anArgument )
{
VALUE right = Color_ForceType( anArgument );
// Get values
unsigned int leftR = FIX2INT( rb_funcall( self, rb_intern( "r" ), 0 ) );
unsigned int leftG = FIX2INT( rb_funcall( self, rb_intern( "g" ), 0 ) );
unsigned int leftB = FIX2INT( rb_funcall( self, rb_intern( "b" ), 0 ) );
unsigned int leftA = FIX2INT( rb_funcall( self, rb_intern( "a" ), 0 ) );
unsigned int rightR = FIX2INT( rb_funcall( right, rb_intern( "r" ), 0 ) );
unsigned int rightG = FIX2INT( rb_funcall( right, rb_intern( "g" ), 0 ) );
unsigned int rightB = FIX2INT( rb_funcall( right, rb_intern( "b" ), 0 ) );
unsigned int rightA = FIX2INT( rb_funcall( right, rb_intern( "a" ), 0 ) );
// Do calculation
if( leftR == rightR && leftG == rightG && leftB == rightB && leftA == rightA )
{
return Qtrue;
}
return Qfalse;
}
static VALUE Color_Initialize( int argc, VALUE * args, VALUE self )
{
@ -89,4 +187,13 @@ void Init_Color( void )
// 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 );
}

3
bindings/ruby/sfml-graphics/graphics/main.hpp
View File

@ -30,6 +30,9 @@ extern "C" void Init_graphics( void );
typedef VALUE ( *RubyFunctionPtr )( ... );
#define MAX( x, y ) ( ( x ) < ( y ) ? ( y ) : ( x ) )
#define MIN( x, y ) ( ( x ) > ( y ) ? ( x ) : ( y ) )
#define VALIDATE_CLASS( variable, type, name ) \
if( rb_obj_is_kind_of( variable, type ) != Qtrue ) \
{ \