2020-12-16 19:41:33 +01:00
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/*
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* Utility object for handling a pdf application / view
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* Takes care of PDF loading and displaying and navigation,
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* uses a number of callbacks to the GUI app.
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*/
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#define MINRES 54
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#define MAXRES 300
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typedef struct pdfapp_s pdfapp_t;
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enum { ARROW, HAND, WAIT };
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extern void winwarn(pdfapp_t*, char *s);
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extern void winerror(pdfapp_t*, fz_error error);
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2020-12-17 14:43:15 +01:00
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extern void wintitle(pdfapp_t*, char *title, char param[]);
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2020-12-16 19:41:33 +01:00
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extern void winresize(pdfapp_t*, int w, int h);
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extern void winrepaint(pdfapp_t*);
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extern void winrepaintsearch(pdfapp_t*);
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extern char *winpassword(pdfapp_t*, char *filename);
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extern void winopenuri(pdfapp_t*, char *s);
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extern void wincursor(pdfapp_t*, int curs);
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extern void windocopy(pdfapp_t*);
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extern void winreloadfile(pdfapp_t*);
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extern void windrawstring(pdfapp_t*, int x, int y, char *s);
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extern void winclose(pdfapp_t*);
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extern void winhelp(pdfapp_t*);
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struct pdfapp_s
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{
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/* current document params */
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char *doctitle;
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pdf_xref *xref;
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pdf_outline *outline;
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int pagecount;
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fz_glyph_cache *cache;
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/* current view params */
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int resolution;
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int rotate;
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fz_pixmap *image;
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int grayscale;
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/* current page params */
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int pageno;
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fz_rect page_bbox;
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float page_rotate;
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fz_display_list *page_list;
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fz_text_span *page_text;
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pdf_link *page_links;
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/* snapback history */
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int hist[256];
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int histlen;
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int marks[10];
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/* window system sizes */
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int winw, winh;
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int scrw, scrh;
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int shrinkwrap;
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/* event handling state */
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char number[256];
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int numberlen;
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int ispanning;
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int panx, pany;
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int iscopying;
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int selx, sely;
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/* TODO - While sely keeps track of the relative change in
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* cursor position between two ticks/events, beyondy shall keep
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* track of the relative change in cursor position from the
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* point where the user hits a scrolling limit. This is ugly.
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* Used in pdfapp.c:pdfapp_onmouse.
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*/
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int beyondy;
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fz_bbox selr;
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/* search state */
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int isediting;
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char search[512];
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int hit;
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int hitlen;
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/* client context storage */
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void *userdata;
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};
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void pdfapp_init(pdfapp_t *app);
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void pdfapp_open(pdfapp_t *app, char *filename, int fd, int reload);
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void pdfapp_close(pdfapp_t *app);
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char *pdfapp_version(pdfapp_t *app);
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char *pdfapp_usage(pdfapp_t *app);
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void pdfapp_onkey(pdfapp_t *app, int c);
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void pdfapp_onmouse(pdfapp_t *app, int x, int y, int btn, int modifiers, int state);
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void pdfapp_oncopy(pdfapp_t *app, unsigned short *ucsbuf, int ucslen);
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void pdfapp_onresize(pdfapp_t *app, int w, int h);
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void pdfapp_invert(pdfapp_t *app, fz_bbox rect);
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void pdfapp_inverthit(pdfapp_t *app);
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