105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
|
/*
|
||
|
|
* 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 void winrepaintsearch(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 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_glyph_cache *cache;
|
||
|
|
|
||
|
|
/* current view params */
|
||
|
|
int resolution;
|
||
|
|
int rotate;
|
||
|
|
fz_pixmap *image;
|
||
|
|
int grayscale;
|
||
|
|
|
||
|
|
/* current page params */
|
||
|
|
int pageno;
|
||
|
|
fz_rect page_bbox;
|
||
|
|
float page_rotate;
|
||
|
|
fz_display_list *page_list;
|
||
|
|
fz_text_span *page_text;
|
||
|
|
pdf_link *page_links;
|
||
|
|
|
||
|
|
/* 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;
|
||
|
|
/* TODO - While sely keeps track of the relative change in
|
||
|
|
* cursor position between two ticks/events, beyondy shall keep
|
||
|
|
* track of the relative change in cursor position from the
|
||
|
|
* point where the user hits a scrolling limit. This is ugly.
|
||
|
|
* Used in pdfapp.c:pdfapp_onmouse.
|
||
|
|
*/
|
||
|
|
int beyondy;
|
||
|
|
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, int reload);
|
||
|
|
void pdfapp_close(pdfapp_t *app);
|
||
|
|
|
||
|
|
char *pdfapp_version(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);
|