Rev 8429 | Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4680 | right-hear | 1 | /* |
| 2 | * Utility object for handling a pdf application / view |
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| 3 | * Takes care of PDF loading and displaying and navigation, |
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| 4 | * uses a number of callbacks to the GUI app. |
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| 5 | */ |
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| 6 | |||
| 7 | #define MINRES 54 |
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| 8 | #define MAXRES 300 |
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| 9 | |||
| 10 | typedef struct pdfapp_s pdfapp_t; |
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| 11 | |||
| 12 | enum { ARROW, HAND, WAIT }; |
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| 13 | |||
| 14 | extern void winwarn(pdfapp_t*, char *s); |
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| 15 | extern void winerror(pdfapp_t*, fz_error error); |
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| 16 | extern void wintitle(pdfapp_t*, char *title); |
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| 17 | extern void winresize(pdfapp_t*, int w, int h); |
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| 18 | extern void winrepaint(pdfapp_t*); |
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| 19 | extern void winrepaintsearch(pdfapp_t*); |
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| 20 | extern char *winpassword(pdfapp_t*, char *filename); |
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| 21 | extern void winopenuri(pdfapp_t*, char *s); |
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| 22 | extern void wincursor(pdfapp_t*, int curs); |
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| 23 | extern void windocopy(pdfapp_t*); |
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| 24 | extern void winreloadfile(pdfapp_t*); |
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| 25 | extern void windrawstring(pdfapp_t*, int x, int y, char *s); |
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| 26 | extern void winclose(pdfapp_t*); |
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| 27 | extern void winhelp(pdfapp_t*); |
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| 28 | |||
| 29 | struct pdfapp_s |
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| 30 | { |
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| 31 | /* current document params */ |
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| 32 | char *doctitle; |
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| 33 | pdf_xref *xref; |
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| 34 | pdf_outline *outline; |
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| 35 | xps_context *xps; |
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| 36 | |||
| 37 | int pagecount; |
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| 38 | fz_glyph_cache *cache; |
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| 39 | |||
| 40 | /* current view params */ |
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| 41 | int resolution; |
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| 42 | int rotate; |
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| 43 | fz_pixmap *image; |
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| 44 | int grayscale; |
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| 45 | |||
| 46 | /* current page params */ |
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| 47 | int pageno; |
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| 48 | fz_rect page_bbox; |
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| 49 | float page_rotate; |
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| 50 | fz_display_list *page_list; |
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| 51 | fz_text_span *page_text; |
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| 52 | pdf_link *page_links; |
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| 53 | |||
| 54 | /* snapback history */ |
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| 55 | int hist[256]; |
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| 56 | int histlen; |
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| 57 | int marks[10]; |
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| 58 | |||
| 59 | /* window system sizes */ |
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| 60 | int winw, winh; |
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| 61 | int scrw, scrh; |
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| 62 | int shrinkwrap; |
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| 63 | |||
| 64 | /* event handling state */ |
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| 65 | char number[256]; |
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| 66 | int numberlen; |
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| 67 | |||
| 68 | int ispanning; |
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| 69 | int panx, pany; |
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| 70 | |||
| 71 | int iscopying; |
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| 72 | int selx, sely; |
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| 73 | /* TODO - While sely keeps track of the relative change in |
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| 74 | * cursor position between two ticks/events, beyondy shall keep |
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| 75 | * track of the relative change in cursor position from the |
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| 76 | * point where the user hits a scrolling limit. This is ugly. |
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| 77 | * Used in pdfapp.c:pdfapp_onmouse. |
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| 78 | */ |
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| 79 | int beyondy; |
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| 80 | fz_bbox selr; |
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| 81 | |||
| 82 | /* search state */ |
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| 83 | int isediting; |
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| 84 | char search[512]; |
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| 85 | int hit; |
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| 86 | int hitlen; |
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| 87 | |||
| 88 | /* client context storage */ |
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| 89 | void *userdata; |
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| 90 | }; |
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| 91 | |||
| 92 | void pdfapp_init(pdfapp_t *app); |
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| 93 | void pdfapp_open(pdfapp_t *app, char *filename, int fd, int reload); |
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| 94 | void pdfapp_close(pdfapp_t *app); |
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| 95 | |||
| 96 | char *pdfapp_version(pdfapp_t *app); |
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| 97 | char *pdfapp_usage(pdfapp_t *app); |
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| 98 | |||
| 99 | void pdfapp_onkey(pdfapp_t *app, int c); |
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| 100 | void pdfapp_onmouse(pdfapp_t *app, int x, int y, int btn, int modifiers, int state); |
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| 101 | void pdfapp_oncopy(pdfapp_t *app, unsigned short *ucsbuf, int ucslen); |
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| 102 | void pdfapp_onresize(pdfapp_t *app, int w, int h); |
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| 103 | |||
| 104 | void pdfapp_invert(pdfapp_t *app, fz_bbox rect); |
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| 105 | void pdfapp_inverthit(pdfapp_t *app); |