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add is_valid

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This commit is contained in:
David Rose 2004-03-19 01:48:50 +00:00
parent 2e85d47cd2
commit c1583ac567
2 changed files with 16 additions and 1 deletions
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14
panda/src/pnmimage/pnmWriter.I
View File

@ -26,7 +26,8 @@ INLINE PNMWriter::
PNMWriter(PNMFileType *type, ostream *file, bool owns_file) : PNMWriter(PNMFileType *type, ostream *file, bool owns_file) :
_type(type), _type(type),
_owns_file(owns_file), _owns_file(owns_file),
_file(file) _file(file),
_is_valid(true)
{ {
} }
@ -106,3 +107,14 @@ INLINE void PNMWriter::
copy_header_from(const PNMImageHeader &header) { copy_header_from(const PNMImageHeader &header) {
PNMImageHeader::operator = (header); PNMImageHeader::operator = (header);
} }
////////////////////////////////////////////////////////////////////
// Function: PNMWriter::is_valid
// Access: Public
// Description: Returns true if the PNMWriter can be used to write
// data, false if something is wrong.
////////////////////////////////////////////////////////////////////
INLINE bool PNMWriter::
is_valid() const {
return _is_valid;
}

3
panda/src/pnmimage/pnmWriter.h
View File

@ -59,10 +59,13 @@ public:
virtual bool supports_stream_write() const; virtual bool supports_stream_write() const;
INLINE bool is_valid() const;
protected: protected:
PNMFileType *_type; PNMFileType *_type;
bool _owns_file; bool _owns_file;
ostream *_file; ostream *_file;
bool _is_valid;
}; };
#include "pnmWriter.I" #include "pnmWriter.I"