Gabriele Cosmo
73 lines
2.2 KiB
Plaintext
73 lines
2.2 KiB
Plaintext
// Copyright (C) 2010, Guy Barrand. All rights reserved.
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// See the file tools.license for terms.
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#ifndef tools_image_reader
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#define tools_image_reader
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#include "forit"
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#include <string>
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#include <vector>
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namespace tools {
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namespace image {
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class ireader {
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public:
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virtual ~ireader() {}
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public:
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virtual ireader* copy() const = 0;
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virtual bool is(const std::string&) const = 0;
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virtual bool infos(std::ostream& a_out,const std::string& a_file,
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unsigned int& a_width,unsigned int& a_height,
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unsigned int& a_bpp) const = 0;
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virtual unsigned char* read(std::ostream& a_out,const std::string& a_file,
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unsigned int& a_width,unsigned int& a_height,
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unsigned int& a_bpp) const = 0;
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virtual unsigned char* read_part(std::ostream& a_out,
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const std::string& a_file,
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unsigned int a_sx,unsigned int a_sy,
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unsigned int a_sw,unsigned int a_sh,
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unsigned int& a_rw,unsigned int& a_rh,
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unsigned int& a_rbpp) const = 0;
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};
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class readers {
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public:
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typedef std::pair<std::string,ireader*> named_reader;
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public:
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readers(){}
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virtual ~readers(){_clear();}
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public:
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readers(const readers& a_from) {
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_copy(a_from.m_readers);
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}
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readers& operator=(const readers& a_from){
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if(&a_from==this) return *this;
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_copy(a_from.m_readers);
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return *this;
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}
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public:
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void add_reader(const std::string& a_name,ireader* a_reader) {
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m_readers.push_back(named_reader(a_name,a_reader)); //take ownership of a_reader.
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}
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const std::vector<named_reader>& named_readers() const {return m_readers;}
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protected:
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void _clear(){
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tools_vforit(named_reader,m_readers,it) delete (*it).second;
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m_readers.clear();
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}
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void _copy(const std::vector<named_reader>& a_from) {
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_clear();
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tools_vforcit(named_reader,a_from,it) {
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m_readers.push_back(named_reader((*it).first,(*it).second->copy()));
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}
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}
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protected:
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std::vector<named_reader> m_readers; //have a vector (and not a map) since the order is important.
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};
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}}
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#endif
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