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Added SFML::Rect, not finished yet but will work more on it when I get home.

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git-svn-id: https://sfml.svn.sourceforge.net/svnroot/sfml/branches/sfml2@1668 4e206d99-4929-0410-ac5d-dfc041789085
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groogy 2010-11-17 19:29:09 +00:00
parent 0994de8d23
commit 810cd35cae
2 changed files with 213 additions and 0 deletions
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181
bindings/ruby/sfml-graphics/graphics/Rect.cpp Normal file
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/* rbSFML - Copyright (c) 2010 Henrik Valter Vogelius Hansson - groogy@groogy.se
* This software is provided 'as-is', without any express or
* implied warranty. In no event will the authors be held
* liable for any damages arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute
* it freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented;
* you must not claim that you wrote the original software.
* If you use this software in a product, an acknowledgment
* in the product documentation would be appreciated but
* is not required.
*
* 2. Altered source versions must be plainly marked as such,
* and must not be misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any
* source distribution.
*/
#include "Rect.hpp"
#include "main.hpp"
VALUE globalRectClass;
/* Internal function
* Forces the argument someValue to be a Vector2. IF it can convert it then it will.
* So you can always safely asume that this function returns a Vector2 object.
* If it fails then an exception will be thrown.
*/
VALUE Rect_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 );
VALUE arg4 = rb_ary_entry( someValue, 3 );
return rb_funcall( globalRectClass, rb_intern( "new" ), 4, arg1, arg2, arg3, arg4 );
}
else if( rb_obj_is_kind_of( someValue, globalRectClass ) == Qtrue )
{
return someValue;
}
else
{
rb_raise( rb_eRuntimeError, "expected Array or Rect" );
}
}
/* Internal function
* Will copy the x and y from aSource to self.
*/
static void Rect_internal_CopyFrom( VALUE self, VALUE aSource )
{
VALUE rect = Rect_ForceType( aSource );
VALUE left = rb_funcall( rect, rb_intern( "left" ), 0 );
VALUE top = rb_funcall( rect, rb_intern( "top" ), 0 );
VALUE width = rb_funcall( rect, rb_intern( "width" ), 0 );
VALUE height = rb_funcall( rect, rb_intern( "height" ), 0 );
rb_funcall( self, rb_intern( "left=" ), 1, left );
rb_funcall( self, rb_intern( "top=" ), 1, top );
rb_funcall( self, rb_intern( "width=" ), 1, width );
rb_funcall( self, rb_intern( "height=" ), 1, height );
rb_iv_set( self, "@dataType", rb_iv_get( rect, "@dataType" ) );
}
/* Internal function
* Validate that the passed types are the same and numeric.
*/
static void Rect_internal_ValidateTypes( VALUE aFirst, VALUE aSecond, VALUE aThird, VALUE aFourth )
{
if( CLASS_OF( aFirst ) != CLASS_OF( aSecond ) || CLASS_OF( aFirst ) != CLASS_OF( aThird ) || CLASS_OF( aFirst ) != CLASS_OF( aFourth ) )
{
rb_raise( rb_eRuntimeError, "left, top, width and height must be of same type" );
}
if( rb_obj_is_kind_of( aFirst, rb_cNumeric ) == Qfalse )
{
rb_raise( rb_eRuntimeError, "left, top, width and height must be numeric!" );
}
}
/* call-seq:
* Rect.new() -> rect
* Rect.new( [left, top, width, height] ) -> rect
* Rect.new( rect ) -> rect
* Rect.new( left, top, width, height ) -> rect
* Rect.new( position, size ) -> rect
*
* Create a new rect instance.
*/
static VALUE Rect_Initialize( int argc, VALUE *args VALUE self )
{
switch( argc )
{
case 0:
rb_iv_set( self, "@left", INT2NUM( 0 ) );
rb_iv_set( self, "@top", INT2NUM( 0 ) );
rb_iv_set( self, "@width", INT2NUM( 0 ) );
rb_iv_set( self, "@height", INT2NUM( 0 ) );
break;
case 1:
Color_internal_CopyFrom( self, args[0] );
break;
case 4:
Rect_internal_ValidateTypes( args[0], args[1], args[2], args[3] );
rb_iv_set( self, "@left", args[0]);
rb_iv_set( self, "@top", args[1]);
rb_iv_set( self, "@width", args[2]);
rb_iv_set( self, "@height", args[3]);
break;
default:
rb_raise( rb_eArgError, "Expected 0, 3 or 4 arguments but was given %d", argc );
}
return self;
rb_iv_set( self, "@dataType", CLASS_OF( rb_iv_get( self, "@left" ) ) );
return self;
}
void Init_Rect
/* SFML namespace which contains the classes of this module. */
VALUE sfml = rb_define_module( "SFML" );
/* Utility class for manipulating 2D axis aligned rectangles.
*
* A rectangle is defined by its top-left corner and its size.
*
* It is a very simple class defined for convenience, so its member variables (left, top, width and height) are public
* and can be accessed directly, just like the vector classes (SFML::Vector2 and SFML::Vector3).
*
* To keep things simple, SFML::Rect doesn't define functions to emulate the properties that are not directly members
* (such as right, bottom, center, etc.), it rather only provides intersection functions.
*
* SFML::Rect uses the usual rules for its boundaries:
*
* - The left and top edges are included in the rectangle's area
* - The right (left + width) and bottom (top + height) edges are excluded from the rectangle's area
*
* This means that SFML::Rect.new(0, 0, 1, 1) and SFML::Rect.new(1, 1, 1, 1) don't intersect.
*
* SFML::Rect works just like SFML::Vector2 and SFML::Vector3 when it comes to types. It will accept any value that is
* Numeric but all values must be of the same class.
*
* Usage example:
*
* # Define a rectangle, located at (0, 0) with a size of 20x5
* r1 = SFML::Rect.new(0, 0, 20, 5)
*
* # Define another rectangle, located at (4, 2) with a size of 18x10
* position = SFML::Vector2.new(4, 2)
* size = SFML::Vector2.new(18, 10)
* r2 = SFML::Rect.new(position, size)
*
* # Test intersections with the point (3, 1)
* b1 = r1.contains(3, 1); # true
* b2 = r2.contains(3, 1); # false
*
* # Test the intersection between r1 and r2
* result = SFML::Rect.new
* b3 = r1.intersects(r2, result) # true
* # result == (4, 2, 16, 3)
*
*/
globalRectClass = rb_define_class_under( sfml, "Rect", rb_cObject );
// Instance methods
rb_define_method( globalRectClass, "initialize", Rect_Initialize, -2 );
// Instance operators
// Attribute accessors
rb_define_attr( globalRectClass, "left", 1, 1 );
rb_define_attr( globalRectClass, "top", 1, 1 );
rb_define_attr( globalRectClass, "width", 1, 1 );
rb_define_attr( globalRectClass, "height", 1, 1 );
}

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bindings/ruby/sfml-graphics/graphics/Rect.hpp Normal file
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/* rbSFML - Copyright (c) 2010 Henrik Valter Vogelius Hansson - groogy@groogy.se
* This software is provided 'as-is', without any express or
* implied warranty. In no event will the authors be held
* liable for any damages arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute
* it freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented;
* you must not claim that you wrote the original software.
* If you use this software in a product, an acknowledgment
* in the product documentation would be appreciated but
* is not required.
*
* 2. Altered source versions must be plainly marked as such,
* and must not be misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any
* source distribution.
*/
#ifndef SFML_RUBYEXT_RECT_HEADER_
#define SFML_RUBYEXT_RECT_HEADER_
#include "ruby.h"
VALUE Rect_ForceType( VALUE someValue );
void Init_Rect( void );
#endif // SFML_RUBYEXT_RECT_HEADER_