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/*
* Utility object for handling a pdf application / view
* Takes care of PDF loading and displaying and navigation,
* uses a number of callbacks to the GUI app.
*/
#define MINRES 54
#define MAXRES 300
typedef struct pdfapp_s pdfapp_t;
enum { ARROW, HAND, WAIT };
extern void winwarn(pdfapp_t*, char *s);
extern void winerror(pdfapp_t*, fz_error error);
extern void wintitle(pdfapp_t*, char *title);
extern void winresize(pdfapp_t*, int w, int h);
extern void winrepaint(pdfapp_t*);
extern char* winpassword(pdfapp_t*, char *filename);
extern void winopenuri(pdfapp_t*, char *s);
extern void wincursor(pdfapp_t*, int curs);
extern void windocopy(pdfapp_t*);
extern void winreloadfile(pdfapp_t*);
extern void wininvert(pdfapp_t*, fz_bbox rect);
extern void windrawstring(pdfapp_t*, int x, int y, char *s);
extern void winclose(pdfapp_t*);
extern void winhelp(pdfapp_t*);
struct pdfapp_s
{
/* current document params */
char *doctitle;
pdf_xref *xref;
pdf_outline *outline;
int pagecount;
fz_glyphcache *cache;
/* current view params */
int resolution;
int rotate;
fz_pixmap *image;
int grayscale;
/* current page params */
int pageno;
pdf_page *page;
/* snapback history */
int hist[256];
int histlen;
int marks[10];
/* window system sizes */
int winw, winh;
int scrw, scrh;
int shrinkwrap;
/* event handling state */
char number[256];
int numberlen;
int ispanning;
int panx, pany;
int iscopying;
int selx, sely;
fz_bbox selr;
/* search state */
int isediting;
char search[512];
int hit;
int hitlen;
/* client context storage */
void *userdata;
};
void pdfapp_init(pdfapp_t *app);
void pdfapp_open(pdfapp_t *app, char *filename, int fd);
void pdfapp_close(pdfapp_t *app);
char *pdfapp_usage(pdfapp_t *app);
void pdfapp_onkey(pdfapp_t *app, int c);
void pdfapp_onmouse(pdfapp_t *app, int x, int y, int btn, int modifiers, int state);
void pdfapp_oncopy(pdfapp_t *app, unsigned short *ucsbuf, int ucslen);
void pdfapp_onresize(pdfapp_t *app, int w, int h);
void pdfapp_invert(pdfapp_t *app, fz_bbox rect);
void pdfapp_inverthit(pdfapp_t *app);
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