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/***************************************************************************
sq_imageloader.h - description
-------------------
begin : Tue Sep 20 2005
copyright : (C) 2005 by Baryshev Dmitry
email : ksquirrel.iv@gmail.com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef SQ_IMAGELOADER_H
#define SQ_IMAGELOADER_H
#include <tqstring.h>
#include <tqimage.h>
#include <tqobject.h>
#include "sq_codecsettings.h"
struct fmt_info;
struct RGBA;
struct SQ_LIBRARY;
/*
* SQ_ImageLoader namespace represents functions to decode images. Uses
* SQ_LibraryHandler. Used by SQ_EditBase (preview image) and SQ_ThumbnailLoadJob
* (for generating thumbnails).
*/
class SQ_ImageLoader : public TQObject
{
public:
SQ_ImageLoader(TQObject *tqparent);
~SQ_ImageLoader();
/*
* Try to load image and store a pointer to decoded image data in m_image. Aslo
* store information about the image in finfo.
*
* If 'multi' is true, read all image pages from file.
*/
bool loadImage(const TQString &path, const SQ_CodecSettings::settings &sett, bool multi = false, int nomorethan = -1);
/*
* Try to determine image dimensions.
*/
bool tasteImage(const TQString &path, int *w, int *h, SQ_LIBRARY *_lib = 0);
/*
* Remove any previously saved data.
*/
void cleanup(bool del = true);
/*
* Direct access to image bits...
*/
RGBA* bits() const;
/*
* Return decoded image as TQImage.
*/
TQImage image() const;
/*
* Get a pointer to structure with information
* on decoded image (number of pages, width, height...)
*/
fmt_info* info() const;
int errors() const;
static SQ_ImageLoader* instance() { return m_instance; }
private:
RGBA *m_image, *dumbscan;
fmt_info *finfo;
int m_errors;
static SQ_ImageLoader *m_instance;
};
inline
RGBA* SQ_ImageLoader::bits() const
{
return m_image;
}
inline
fmt_info* SQ_ImageLoader::info() const
{
return finfo;
}
inline
int SQ_ImageLoader::errors() const
{
return m_errors;
}
#endif
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