89 lines
2.2 KiB
C++
89 lines
2.2 KiB
C++
#ifndef __NOPACITY_IMAGELOADER_H
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#define __NOPACITY_IMAGELOADER_H
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#include <cairo.h>
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#include <librsvg/rsvg.h>
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#ifndef LIBRSVG_CHECK_VERSION // Workaround for librsvg < 2.36.2
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#include <librsvg/rsvg-cairo.h>
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#include <librsvg/librsvg-features.h>
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#endif
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#include <jpeglib.h>
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#include <setjmp.h>
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#include <vdr/osd.h>
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#include <vdr/tools.h>
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//
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// Image importers
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//
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class cImageImporter {
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public:
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cImageImporter() {};
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virtual ~cImageImporter() {};
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virtual bool LoadImage(const char *path) { return false; };
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virtual void DrawToCairo(cairo_t *cr) {};
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virtual void GetImageSize(int &width, int &height) {};
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static cImageImporter* CreateImageImporter(const char* path);
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};
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// Image importer for PNG
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class cImageImporterPNG : public cImageImporter {
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public:
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cImageImporterPNG();
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~cImageImporterPNG();
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bool LoadImage(const char *path);
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void DrawToCairo(cairo_t *cr);
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void GetImageSize(int &width, int &height);
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private:
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cairo_surface_t *surface;
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};
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// Image importer for SVG
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#if !LIBRSVG_CHECK_VERSION(2, 36, 0)
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#error librsvg version 2.36.0 or above required!
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#endif
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class cImageImporterSVG : public cImageImporter {
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public:
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cImageImporterSVG();
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~cImageImporterSVG();
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bool LoadImage(const char *path);
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void DrawToCairo(cairo_t *cr);
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void GetImageSize(int &width, int &height);
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static void InitLibRSVG();
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private:
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RsvgHandle *handle;
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};
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// Image importer for JPG
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#if BITS_IN_JSAMPLE != 8
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#error libjpeg has to be compiled with 8-bit samples!
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#endif
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class cImageImporterJPG : public cImageImporter {
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public:
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cImageImporterJPG();
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~cImageImporterJPG();
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bool LoadImage(const char *path);
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void DrawToCairo(cairo_t *cr);
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void GetImageSize(int &width, int &height);
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private:
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j_decompress_ptr cinfo;
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FILE *infile;
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};
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//
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// Image loader class
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//
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class cImageLoader {
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private:
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cImageImporter *importer;
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public:
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cImageLoader();
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virtual ~cImageLoader();
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cImage *CreateImage(int width, int height, bool preserveAspect = true);
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bool LoadImage(std::string Path, std::string FileName, std::string Extension);
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bool LoadImage(const char *fullpath);
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};
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#endif //__NOPACITY_IMAGELOADER_H
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