UnlimitedZoomingInterface: include/HTMLRenderer/Allocator.hpp Source File

00001 #ifndef hpp_RendererAllocator_hpp
00002 #define hpp_RendererAllocator_hpp
00003 
00004 
00005 
00006 namespace HTML
00007 {
00008     namespace Renderer
00009     {
00010         // Forward declare the box class
00011         class Box;
00012         // Forward declare the mapper class
00013         class Mapper;
00014 
00015         
00022         namespace Allocators
00023         {
00025             class BaseAllocator
00026             {
00027             protected:
00029                 BaseAllocator() {}
00030 
00031             public:
00033                 virtual HTML::Renderer::BoxHierarchy * getNewBoxHierarchy(const HTML::GenericElement::ElementID tagID, const HTML::Renderer::BoxHierarchy::String & ID, const HTML::Renderer::BoxHierarchy::String & Class) const volatile = 0;
00035                 virtual void returnBoxHierarchy(const HTML::Renderer::BoxHierarchy *) const volatile = 0;                
00037                 virtual CSS::Length * getNewAbsoluteLength(const float value, const CSS::AbsoluteLength::AbsoluteUnit & relUnit) const volatile = 0;
00039                 virtual CSS::Length * getNewRelativeLength(const float value, const CSS::RelativeLength::RelativeUnit & relUnit, CSS::Length * relativeTo) const volatile = 0;
00041                 virtual CSS::Length * getNewAutoLength() const volatile = 0;
00043                 virtual void returnLength(CSS::Length *) const volatile = 0;
00045                 virtual HTML::Renderer::Box * getNewBox(Mapper &, const BoxHierarchy *, const CSS::StyleImplement & style, const uint32 ct = 0, const Strings::FastString & text = "") const volatile = 0;
00047                 virtual void returnBox(HTML::Renderer::Box *) const volatile = 0;
00048             };
00049 
00051             class SimpleHeap : public BaseAllocator
00052             {
00053             public:
00055                 SimpleHeap() {}
00056 
00057             public:
00059                 virtual HTML::Renderer::BoxHierarchy * getNewBoxHierarchy(const HTML::GenericElement::ElementID tagID, const HTML::Renderer::BoxHierarchy::String & ID, const HTML::Renderer::BoxHierarchy::String & Class) const volatile
00060                 {
00061                     return new HTML::Renderer::BoxHierarchy(tagID, ID, Class);
00062                 }
00064                 virtual void returnBoxHierarchy(const HTML::Renderer::BoxHierarchy * box) const volatile 
00065                 {
00066                     delete box;
00067                 }
00068 
00070                 virtual CSS::Length * getNewAbsoluteLength(const float value, const CSS::AbsoluteLength::AbsoluteUnit & relUnit) const volatile
00071                 {
00072                     return new CSS::AbsoluteLength(value, relUnit);
00073                 }
00075                 virtual CSS::Length * getNewRelativeLength(const float value, const CSS::RelativeLength::RelativeUnit & relUnit, CSS::Length * relativeTo) const volatile
00076                 {
00077                     if (!relativeTo) return 0;
00078                     return new CSS::RelativeLength(value, relUnit, *relativeTo);
00079                 }
00081                 virtual CSS::Length * getNewAutoLength() const volatile
00082                 {
00083                     return new CSS::AutoLength();
00084                 }
00086                 virtual void returnLength(CSS::Length * length) const volatile
00087                 {   
00088                     delete length;
00089                 }
00091                 virtual HTML::Renderer::Box * getNewBox(Mapper &, const BoxHierarchy *, const CSS::StyleImplement & style, const uint32 ct = 0, const Strings::FastString & text = "") const volatile;
00093                 virtual void returnBox(HTML::Renderer::Box *) const volatile;
00094             };
00095         }
00096     }
00097 }
00098 
00099 #endif