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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4680 | right-hear | 1 | #include "fitz.h" |
| 2 | #include "mupdf.h" |
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| 3 | #include "pdfapp.h" |
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| 4 | |||
| 5 | #include |
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| 6 | |||
| 7 | #define ZOOMSTEP 1.142857 |
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| 8 | #define BEYOND_THRESHHOLD 40 |
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| 9 | |||
| 10 | enum panning |
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| 11 | { |
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| 12 | DONT_PAN = 0, |
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| 13 | PAN_TO_TOP, |
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| 14 | PAN_TO_BOTTOM |
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| 15 | }; |
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| 16 | |||
| 17 | static void pdfapp_showpage(pdfapp_t *app, int loadpage, int drawpage, int repaint); |
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| 18 | |||
| 19 | static void pdfapp_warn(pdfapp_t *app, const char *fmt, ...) |
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| 20 | { |
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| 21 | char buf[1024]; |
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| 22 | va_list ap; |
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| 23 | va_start(ap, fmt); |
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| 24 | vsprintf(buf, fmt, ap); |
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| 25 | va_end(ap); |
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| 26 | winwarn(app, buf); |
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| 27 | } |
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| 28 | |||
| 29 | static void pdfapp_error(pdfapp_t *app, fz_error error) |
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| 30 | { |
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| 31 | winerror(app, error); |
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| 32 | } |
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| 33 | |||
| 34 | char *pdfapp_version(pdfapp_t *app) |
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| 35 | { |
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| 36 | return |
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| 37 | "MuPDF 0.9\n" |
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| 38 | "Copyright 2006-2011 Artifex Sofware, Inc.\n"; |
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| 39 | } |
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| 40 | |||
| 41 | char *pdfapp_usage(pdfapp_t *app) |
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| 42 | { |
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| 5821 | leency | 43 | return " "; |
| 44 | /* |
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| 4680 | right-hear | 45 | "L\t\t-- rotate left\n" |
| 46 | "R\t\t-- rotate right\n" |
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| 47 | "h\t\t-- scroll left\n" |
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| 48 | "j down\t\t-- scroll down\n" |
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| 49 | "k up\t\t-- scroll up\n" |
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| 50 | "l\t\t-- scroll right\n" |
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| 51 | "+\t\t-- zoom in\n" |
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| 52 | "-\t\t-- zoom out\n" |
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| 53 | "w\t\t-- shrinkwrap\n" |
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| 54 | "r\t\t-- reload file\n" |
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| 55 | ". pgdn right space\t-- next page\n" |
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| 56 | ", pgup left b\t-- previous page\n" |
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| 57 | ">\t\t-- next 10 pages\n" |
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| 58 | "<\t\t-- back 10 pages\n" |
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| 59 | "m\t\t-- mark page for snap back\n" |
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| 60 | "t\t\t-- pop back to latest mark\n" |
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| 61 | "1m\t\t-- mark page in register 1\n" |
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| 62 | "1t\t\t-- go to page in register 1\n" |
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| 63 | "123g\t\t-- go to page 123\n" |
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| 64 | "/\t\t-- search for text\n" |
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| 65 | "n\t\t-- find next search result\n" |
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| 66 | "N\t\t-- find previous search result\n" |
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| 67 | "c\t\t-- toggle between color and grayscale\n" |
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| 7621 | leency | 68 | ; |
| 69 | */ |
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| 4680 | right-hear | 70 | } |
| 71 | |||
| 72 | void pdfapp_init(pdfapp_t *app) |
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| 73 | { |
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| 74 | memset(app, 0, sizeof(pdfapp_t)); |
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| 75 | app->scrw = 640; |
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| 76 | app->scrh = 480; |
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| 77 | app->resolution = 72; |
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| 78 | } |
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| 79 | |||
| 80 | void pdfapp_invert(pdfapp_t *app, fz_bbox rect) |
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| 81 | { |
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| 82 | unsigned char *p; |
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| 83 | int x, y, n; |
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| 84 | |||
| 85 | int x0 = CLAMP(rect.x0 - app->image->x, 0, app->image->w - 1); |
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| 86 | int x1 = CLAMP(rect.x1 - app->image->x, 0, app->image->w - 1); |
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| 87 | int y0 = CLAMP(rect.y0 - app->image->y, 0, app->image->h - 1); |
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| 88 | int y1 = CLAMP(rect.y1 - app->image->y, 0, app->image->h - 1); |
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| 89 | |||
| 90 | for (y = y0; y < y1; y++) |
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| 91 | { |
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| 92 | p = app->image->samples + (y * app->image->w + x0) * app->image->n; |
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| 93 | for (x = x0; x < x1; x++) |
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| 94 | { |
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| 95 | for (n = app->image->n; n > 0; n--, p++) |
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| 96 | *p = 255 - *p; |
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| 97 | } |
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| 98 | } |
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| 99 | } |
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| 100 | |||
| 101 | static void pdfapp_open_pdf(pdfapp_t *app, char *filename, int fd) |
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| 102 | { |
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| 103 | fz_error error; |
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| 104 | fz_stream *file; |
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| 105 | char *password = ""; |
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| 106 | fz_obj *obj; |
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| 107 | fz_obj *info; |
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| 108 | |||
| 109 | /* |
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| 110 | * Open PDF and load xref table |
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| 111 | */ |
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| 112 | __menuet__debug_out("FZ OPEN\n"); |
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| 113 | //file = fz_open_fd(fd); |
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| 114 | __menuet__debug_out("FZ ready\n"); |
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| 115 | error = pdf_open_xref(&app->xref, filename, NULL); |
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| 116 | if (error){ |
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| 117 | __menuet__debug_out("FZ can't open\n"); |
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| 118 | pdfapp_error(app, fz_rethrow(error, "cannot open document '%s'", filename));} |
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| 119 | fz_close(file); |
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| 120 | |||
| 121 | /* |
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| 122 | * Handle encrypted PDF files |
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| 123 | */ |
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| 124 | /* |
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| 125 | if (pdf_needs_password(app->xref)) |
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| 126 | { |
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| 127 | int okay = pdf_authenticate_password(app->xref, password); |
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| 128 | while (!okay) |
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| 129 | { |
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| 130 | password = winpassword(app, filename); |
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| 131 | if (!password) |
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| 132 | exit(1); |
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| 133 | okay = pdf_authenticate_password(app->xref, password); |
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| 134 | if (!okay) |
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| 135 | pdfapp_warn(app, "Invalid password."); |
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| 136 | } |
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| 137 | } |
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| 138 | * */ |
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| 139 | |||
| 140 | /* |
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| 141 | * Load meta information |
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| 142 | */ |
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| 143 | |||
| 144 | /* |
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| 145 | app->outline = pdf_load_outline(app->xref); |
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| 146 | |||
| 147 | app->doctitle = filename; |
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| 148 | if (strrchr(app->doctitle, '\\')) |
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| 149 | app->doctitle = strrchr(app->doctitle, '\\') + 1; |
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| 150 | if (strrchr(app->doctitle, '/')) |
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| 151 | app->doctitle = strrchr(app->doctitle, '/') + 1; |
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| 152 | info = fz_dict_gets(app->xref->trailer, "Info"); |
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| 153 | if (info) |
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| 154 | { |
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| 155 | obj = fz_dict_gets(info, "Title"); |
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| 156 | if (obj) |
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| 157 | app->doctitle = pdf_to_utf8(obj); |
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| 158 | } */ |
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| 159 | |||
| 160 | /* |
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| 161 | * Start at first page |
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| 162 | */ |
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| 163 | __menuet__debug_out("Start at first page\n"); |
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| 164 | |||
| 165 | error = pdf_load_page_tree(app->xref); |
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| 166 | if (error) { |
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| 167 | __menuet__debug_out("Can't load tree\n"); |
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| 168 | pdfapp_error(app, fz_rethrow(error, "cannot load page tree"));} |
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| 169 | |||
| 170 | __menuet__debug_out("Page counter\n"); |
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| 171 | app->pagecount = pdf_count_pages(app->xref); |
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| 172 | __menuet__debug_out("All is set!\n"); |
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| 173 | } |
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| 174 | |||
| 175 | void pdfapp_open(pdfapp_t *app, char *filename, int fd, int reload) |
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| 176 | { |
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| 7621 | leency | 177 | pdfapp_open_pdf(app, filename, fd); |
| 4680 | right-hear | 178 | |
| 179 | app->cache = fz_new_glyph_cache(); |
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| 180 | |||
| 181 | if (app->pageno < 1) |
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| 182 | app->pageno = 1; |
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| 183 | if (app->pageno > app->pagecount) |
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| 184 | app->pageno = app->pagecount; |
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| 185 | if (app->resolution < MINRES) |
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| 186 | app->resolution = MINRES; |
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| 187 | if (app->resolution > MAXRES) |
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| 188 | app->resolution = MAXRES; |
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| 189 | |||
| 190 | if (!reload) |
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| 191 | { |
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| 192 | app->shrinkwrap = 1; |
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| 193 | app->rotate = 0; |
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| 194 | app->panx = 0; |
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| 195 | app->pany = 0; |
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| 196 | } |
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| 197 | |||
| 198 | pdfapp_showpage(app, 1, 1, 1); |
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| 199 | } |
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| 200 | |||
| 201 | void pdfapp_close(pdfapp_t *app) |
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| 202 | { |
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| 203 | if (app->cache) |
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| 204 | fz_free_glyph_cache(app->cache); |
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| 205 | app->cache = NULL; |
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| 206 | |||
| 207 | if (app->image) |
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| 208 | fz_drop_pixmap(app->image); |
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| 209 | app->image = NULL; |
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| 210 | |||
| 211 | if (app->outline) |
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| 212 | pdf_free_outline(app->outline); |
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| 213 | app->outline = NULL; |
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| 214 | |||
| 215 | if (app->xref) |
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| 216 | { |
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| 217 | if (app->xref->store) |
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| 218 | pdf_free_store(app->xref->store); |
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| 219 | app->xref->store = NULL; |
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| 220 | |||
| 221 | pdf_free_xref(app->xref); |
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| 222 | app->xref = NULL; |
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| 223 | } |
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| 224 | |||
| 225 | fz_flush_warnings(); |
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| 226 | } |
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| 227 | |||
| 228 | static fz_matrix pdfapp_viewctm(pdfapp_t *app) |
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| 229 | { |
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| 230 | fz_matrix ctm; |
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| 231 | ctm = fz_identity; |
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| 232 | ctm = fz_concat(ctm, fz_translate(0, -app->page_bbox.y1)); |
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| 233 | if (app->xref) |
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| 234 | ctm = fz_concat(ctm, fz_scale(app->resolution/72.0f, -app->resolution/72.0f)); |
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| 235 | else |
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| 236 | ctm = fz_concat(ctm, fz_scale(app->resolution/96.0f, app->resolution/96.0f)); |
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| 237 | ctm = fz_concat(ctm, fz_rotate(app->rotate + app->page_rotate)); |
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| 238 | return ctm; |
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| 239 | } |
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| 240 | |||
| 241 | static void pdfapp_panview(pdfapp_t *app, int newx, int newy) |
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| 242 | { |
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| 243 | if (newx < 0) |
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| 244 | newx = 0; |
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| 245 | if (newy < 0) |
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| 246 | newy = 0; |
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| 247 | |||
| 248 | if (newx + app->image->w < app->winw) |
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| 249 | newx = app->winw - app->image->w; |
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| 250 | if (newy + app->image->h < app->winh) |
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| 251 | newy = app->winh - app->image->h; |
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| 252 | |||
| 253 | if (app->winw >= app->image->w) |
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| 254 | newx = (app->winw - app->image->w) / 2; |
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| 255 | if (app->winh >= app->image->h) |
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| 256 | newy = (app->winh - app->image->h) / 2; |
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| 257 | |||
| 258 | if (newx != app->panx || newy != app->pany) |
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| 259 | winrepaint(app); |
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| 260 | |||
| 261 | if (newy > app->image->h) { |
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| 262 | |||
| 263 | app->pageno++; |
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| 264 | |||
| 265 | |||
| 266 | if (app->pageno > app->pagecount) |
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| 267 | app->pageno = app->pagecount; |
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| 268 | |||
| 269 | |||
| 270 | newy = 0; |
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| 271 | app->pany = newy; |
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| 272 | |||
| 273 | pdfapp_showpage(app, 1, 1, 1); |
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| 274 | } |
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| 275 | |||
| 276 | app->panx = newx; |
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| 277 | app->pany = newy; |
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| 278 | } |
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| 279 | |||
| 280 | static void pdfapp_loadpage_pdf(pdfapp_t *app) |
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| 281 | { |
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| 282 | pdf_page *page; |
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| 283 | fz_error error; |
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| 284 | fz_device *mdev; |
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| 285 | |||
| 286 | error = pdf_load_page(&page, app->xref, app->pageno - 1); |
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| 287 | if (error) |
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| 288 | pdfapp_error(app, error); |
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| 289 | |||
| 290 | app->page_bbox = page->mediabox; |
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| 291 | app->page_rotate = page->rotate; |
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| 292 | app->page_links = page->links; |
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| 293 | page->links = NULL; |
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| 294 | |||
| 295 | /* Create display list */ |
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| 296 | app->page_list = fz_new_display_list(); |
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| 297 | mdev = fz_new_list_device(app->page_list); |
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| 298 | error = pdf_run_page(app->xref, page, mdev, fz_identity); |
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| 299 | if (error) |
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| 300 | { |
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| 301 | error = fz_rethrow(error, "cannot draw page %d in '%s'", app->pageno, app->doctitle); |
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| 302 | pdfapp_error(app, error); |
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| 303 | } |
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| 304 | fz_free_device(mdev); |
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| 305 | |||
| 306 | pdf_free_page(page); |
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| 307 | |||
| 308 | pdf_age_store(app->xref->store, 3); |
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| 309 | } |
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| 310 | |||
| 311 | static void pdfapp_showpage(pdfapp_t *app, int loadpage, int drawpage, int repaint) |
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| 312 | { |
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| 313 | char buf[256]; |
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| 314 | fz_device *idev; |
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| 315 | fz_device *tdev; |
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| 316 | fz_colorspace *colorspace; |
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| 317 | fz_matrix ctm; |
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| 318 | fz_bbox bbox; |
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| 319 | |||
| 320 | wincursor(app, WAIT); |
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| 321 | |||
| 322 | if (loadpage) |
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| 323 | { |
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| 324 | if (app->page_list) |
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| 325 | fz_free_display_list(app->page_list); |
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| 326 | if (app->page_text) |
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| 327 | fz_free_text_span(app->page_text); |
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| 328 | if (app->page_links) |
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| 329 | pdf_free_link(app->page_links); |
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| 330 | |||
| 331 | if (app->xref) |
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| 332 | pdfapp_loadpage_pdf(app); |
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| 333 | |||
| 334 | /* Zero search hit position */ |
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| 335 | app->hit = -1; |
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| 336 | app->hitlen = 0; |
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| 337 | |||
| 338 | /* Extract text */ |
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| 339 | app->page_text = fz_new_text_span(); |
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| 340 | tdev = fz_new_text_device(app->page_text); |
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| 341 | fz_execute_display_list(app->page_list, tdev, fz_identity, fz_infinite_bbox); |
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| 342 | fz_free_device(tdev); |
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| 343 | } |
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| 344 | |||
| 345 | if (drawpage) |
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| 346 | { |
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| 7621 | leency | 347 | sprintf(buf, "%s - %d/%d (%d dpi)", app->doctitle, |
| 348 | app->pageno, app->pagecount, app->resolution); |
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| 349 | wintitle(app, buf); |
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| 4680 | right-hear | 350 | |
| 351 | ctm = pdfapp_viewctm(app); |
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| 352 | bbox = fz_round_rect(fz_transform_rect(ctm, app->page_bbox)); |
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| 353 | |||
| 354 | /* Draw */ |
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| 355 | if (app->image) |
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| 356 | fz_drop_pixmap(app->image); |
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| 357 | if (app->grayscale) |
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| 358 | colorspace = fz_device_gray; |
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| 359 | else |
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| 360 | //#ifdef _WIN32 |
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| 361 | colorspace = fz_device_bgr; |
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| 362 | //#else |
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| 363 | // colorspace = fz_device_rgb; |
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| 364 | //#endif |
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| 365 | app->image = fz_new_pixmap_with_rect(colorspace, bbox); |
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| 366 | fz_clear_pixmap_with_color(app->image, 255); |
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| 367 | idev = fz_new_draw_device(app->cache, app->image); |
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| 368 | fz_execute_display_list(app->page_list, idev, ctm, bbox); |
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| 369 | fz_free_device(idev); |
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| 370 | } |
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| 371 | |||
| 372 | if (repaint) |
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| 373 | { |
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| 374 | pdfapp_panview(app, app->panx, app->pany); |
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| 375 | |||
| 376 | if (app->shrinkwrap) |
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| 377 | { |
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| 7621 | leency | 378 | __menuet__debug_out ("SHRINK\n"); |
| 4680 | right-hear | 379 | int w = app->image->w; |
| 380 | int h = app->image->h; |
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| 381 | if (app->winw == w) |
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| 382 | app->panx = 0; |
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| 383 | if (app->winh == h) |
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| 384 | app->pany = 0; |
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| 385 | if (w > app->scrw * 90 / 100) |
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| 386 | w = app->scrw * 90 / 100; |
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| 387 | if (h > app->scrh * 90 / 100) |
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| 388 | h = app->scrh * 90 / 100; |
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| 389 | if (w != app->winw || h != app->winh) |
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| 390 | winresize(app, w, h); |
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| 391 | } |
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| 392 | |||
| 393 | winrepaint(app); |
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| 394 | |||
| 395 | wincursor(app, ARROW); |
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| 396 | } |
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| 397 | |||
| 398 | fz_flush_warnings(); |
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| 399 | } |
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| 400 | |||
| 401 | static void pdfapp_gotouri(pdfapp_t *app, fz_obj *uri) |
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| 402 | { |
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| 403 | char *buf; |
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| 404 | buf = fz_malloc(fz_to_str_len(uri) + 1); |
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| 405 | memcpy(buf, fz_to_str_buf(uri), fz_to_str_len(uri)); |
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| 406 | buf[fz_to_str_len(uri)] = 0; |
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| 407 | winopenuri(app, buf); |
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| 408 | fz_free(buf); |
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| 409 | } |
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| 410 | |||
| 411 | static void pdfapp_gotopage(pdfapp_t *app, fz_obj *obj) |
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| 412 | { |
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| 413 | int number; |
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| 414 | |||
| 415 | number = pdf_find_page_number(app->xref, obj); |
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| 416 | if (number < 0) |
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| 417 | return; |
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| 418 | |||
| 419 | if (app->histlen + 1 == 256) |
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| 420 | { |
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| 421 | memmove(app->hist, app->hist + 1, sizeof(int) * 255); |
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| 422 | app->histlen --; |
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| 423 | } |
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| 424 | app->hist[app->histlen++] = app->pageno; |
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| 425 | app->pageno = number + 1; |
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| 426 | pdfapp_showpage(app, 1, 1, 1); |
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| 427 | } |
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| 428 | |||
| 429 | static inline fz_bbox bboxcharat(fz_text_span *span, int idx) |
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| 430 | { |
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| 431 | int ofs = 0; |
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| 432 | while (span) |
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| 433 | { |
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| 434 | if (idx < ofs + span->len) |
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| 435 | return span->text[idx - ofs].bbox; |
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| 436 | if (span->eol) |
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| 437 | { |
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| 438 | if (idx == ofs + span->len) |
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| 439 | return fz_empty_bbox; |
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| 440 | ofs ++; |
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| 441 | } |
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| 442 | ofs += span->len; |
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| 443 | span = span->next; |
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| 444 | } |
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| 445 | return fz_empty_bbox; |
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| 446 | } |
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| 447 | |||
| 448 | void pdfapp_inverthit(pdfapp_t *app) |
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| 449 | { |
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| 450 | fz_bbox hitbox, bbox; |
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| 451 | fz_matrix ctm; |
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| 452 | int i; |
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| 453 | |||
| 454 | if (app->hit < 0) |
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| 455 | return; |
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| 456 | |||
| 457 | hitbox = fz_empty_bbox; |
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| 458 | ctm = pdfapp_viewctm(app); |
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| 459 | |||
| 460 | for (i = app->hit; i < app->hit + app->hitlen; i++) |
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| 461 | { |
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| 462 | bbox = bboxcharat(app->page_text, i); |
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| 463 | if (fz_is_empty_rect(bbox)) |
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| 464 | { |
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| 465 | if (!fz_is_empty_rect(hitbox)) |
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| 466 | pdfapp_invert(app, fz_transform_bbox(ctm, hitbox)); |
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| 467 | hitbox = fz_empty_bbox; |
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| 468 | } |
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| 469 | else |
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| 470 | { |
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| 471 | hitbox = fz_union_bbox(hitbox, bbox); |
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| 472 | } |
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| 473 | } |
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| 474 | |||
| 475 | if (!fz_is_empty_rect(hitbox)) |
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| 476 | pdfapp_invert(app, fz_transform_bbox(ctm, hitbox)); |
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| 477 | } |
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| 478 | |||
| 479 | static inline int charat(fz_text_span *span, int idx) |
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| 480 | { |
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| 481 | int ofs = 0; |
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| 482 | while (span) |
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| 483 | { |
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| 484 | if (idx < ofs + span->len) |
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| 485 | return span->text[idx - ofs].c; |
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| 486 | if (span->eol) |
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| 487 | { |
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| 488 | if (idx == ofs + span->len) |
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| 489 | return ' '; |
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| 490 | ofs ++; |
||
| 491 | } |
||
| 492 | ofs += span->len; |
||
| 493 | span = span->next; |
||
| 494 | } |
||
| 495 | return 0; |
||
| 496 | } |
||
| 497 | |||
| 498 | static int textlen(fz_text_span *span) |
||
| 499 | { |
||
| 500 | int len = 0; |
||
| 501 | while (span) |
||
| 502 | { |
||
| 503 | len += span->len; |
||
| 504 | if (span->eol) |
||
| 505 | len ++; |
||
| 506 | span = span->next; |
||
| 507 | } |
||
| 508 | return len; |
||
| 509 | } |
||
| 510 | |||
| 511 | static int match(char *s, fz_text_span *span, int n) |
||
| 512 | { |
||
| 513 | int orig = n; |
||
| 514 | int c; |
||
| 515 | while ((c = *s++)) |
||
| 516 | { |
||
| 517 | if (c == ' ' && charat(span, n) == ' ') |
||
| 518 | { |
||
| 519 | while (charat(span, n) == ' ') |
||
| 520 | n++; |
||
| 521 | } |
||
| 522 | else |
||
| 523 | { |
||
| 524 | if (tolower(c) != tolower(charat(span, n))) |
||
| 525 | return 0; |
||
| 526 | n++; |
||
| 527 | } |
||
| 528 | } |
||
| 529 | return n - orig; |
||
| 530 | } |
||
| 531 | |||
| 532 | static void pdfapp_searchforward(pdfapp_t *app, enum panning *panto) |
||
| 533 | { |
||
| 534 | int matchlen; |
||
| 535 | int test; |
||
| 536 | int len; |
||
| 537 | int startpage; |
||
| 538 | |||
| 539 | wincursor(app, WAIT); |
||
| 540 | |||
| 541 | startpage = app->pageno; |
||
| 542 | |||
| 543 | do |
||
| 544 | { |
||
| 545 | len = textlen(app->page_text); |
||
| 546 | |||
| 547 | if (app->hit >= 0) |
||
| 548 | test = app->hit + strlen(app->search); |
||
| 549 | else |
||
| 550 | test = 0; |
||
| 551 | |||
| 552 | while (test < len) |
||
| 553 | { |
||
| 554 | matchlen = match(app->search, app->page_text, test); |
||
| 555 | if (matchlen) |
||
| 556 | { |
||
| 557 | app->hit = test; |
||
| 558 | app->hitlen = matchlen; |
||
| 559 | wincursor(app, HAND); |
||
| 560 | winrepaint(app); |
||
| 561 | return; |
||
| 562 | } |
||
| 563 | test++; |
||
| 564 | } |
||
| 565 | |||
| 566 | app->pageno++; |
||
| 567 | if (app->pageno > app->pagecount) |
||
| 568 | app->pageno = 1; |
||
| 569 | |||
| 570 | pdfapp_showpage(app, 1, 0, 0); |
||
| 571 | *panto = PAN_TO_TOP; |
||
| 572 | |||
| 573 | } while (app->pageno != startpage); |
||
| 574 | |||
| 575 | if (app->pageno == startpage) |
||
| 576 | { |
||
| 577 | pdfapp_warn(app, "String '%s' not found.", app->search); |
||
| 578 | winrepaintsearch(app); |
||
| 579 | } |
||
| 580 | else |
||
| 581 | winrepaint(app); |
||
| 582 | |||
| 583 | wincursor(app, HAND); |
||
| 584 | } |
||
| 585 | |||
| 586 | static void pdfapp_searchbackward(pdfapp_t *app, enum panning *panto) |
||
| 587 | { |
||
| 588 | int matchlen; |
||
| 589 | int test; |
||
| 590 | int len; |
||
| 591 | int startpage; |
||
| 592 | |||
| 593 | wincursor(app, WAIT); |
||
| 594 | |||
| 595 | startpage = app->pageno; |
||
| 596 | |||
| 597 | do |
||
| 598 | { |
||
| 599 | len = textlen(app->page_text); |
||
| 600 | |||
| 601 | if (app->hit >= 0) |
||
| 602 | test = app->hit - 1; |
||
| 603 | else |
||
| 604 | test = len; |
||
| 605 | |||
| 606 | while (test >= 0) |
||
| 607 | { |
||
| 608 | matchlen = match(app->search, app->page_text, test); |
||
| 609 | if (matchlen) |
||
| 610 | { |
||
| 611 | app->hit = test; |
||
| 612 | app->hitlen = matchlen; |
||
| 613 | wincursor(app, HAND); |
||
| 614 | winrepaint(app); |
||
| 615 | return; |
||
| 616 | } |
||
| 617 | test--; |
||
| 618 | } |
||
| 619 | |||
| 620 | app->pageno--; |
||
| 621 | if (app->pageno < 1) |
||
| 622 | app->pageno = app->pagecount; |
||
| 623 | |||
| 624 | pdfapp_showpage(app, 1, 0, 0); |
||
| 625 | *panto = PAN_TO_BOTTOM; |
||
| 626 | |||
| 627 | } while (app->pageno != startpage); |
||
| 628 | |||
| 629 | if (app->pageno == startpage) |
||
| 630 | { |
||
| 631 | pdfapp_warn(app, "String '%s' not found.", app->search); |
||
| 632 | winrepaintsearch(app); |
||
| 633 | } |
||
| 634 | else |
||
| 635 | winrepaint(app); |
||
| 636 | |||
| 637 | wincursor(app, HAND); |
||
| 638 | } |
||
| 639 | |||
| 640 | void pdfapp_onresize(pdfapp_t *app, int w, int h) |
||
| 641 | { |
||
| 642 | if (app->winw != w || app->winh != h) |
||
| 643 | { |
||
| 644 | app->winw = w; |
||
| 645 | app->winh = h; |
||
| 646 | pdfapp_panview(app, app->panx, app->pany); |
||
| 647 | winrepaint(app); |
||
| 648 | } |
||
| 649 | } |
||
| 650 | |||
| 651 | void pdfapp_onkey(pdfapp_t *app, int c) |
||
| 652 | { |
||
| 653 | int oldpage = app->pageno; |
||
| 654 | enum panning panto = PAN_TO_TOP; |
||
| 655 | int loadpage = 1; |
||
| 656 | |||
| 657 | if (app->isediting) |
||
| 658 | { |
||
| 659 | int n = strlen(app->search); |
||
| 660 | if (c < ' ') |
||
| 661 | { |
||
| 662 | if (c == '\b' && n > 0) |
||
| 663 | { |
||
| 664 | app->search[n - 1] = 0; |
||
| 665 | winrepaintsearch(app); |
||
| 666 | } |
||
| 667 | if (c == '\n' || c == '\r') |
||
| 668 | { |
||
| 669 | app->isediting = 0; |
||
| 670 | if (n > 0) |
||
| 671 | { |
||
| 672 | winrepaintsearch(app); |
||
| 673 | pdfapp_onkey(app, 'n'); |
||
| 674 | } |
||
| 675 | else |
||
| 676 | winrepaint(app); |
||
| 677 | } |
||
| 678 | if (c == '\033') |
||
| 679 | { |
||
| 680 | app->isediting = 0; |
||
| 681 | winrepaint(app); |
||
| 682 | } |
||
| 683 | } |
||
| 684 | else |
||
| 685 | { |
||
| 686 | if (n + 2 < sizeof app->search) |
||
| 687 | { |
||
| 688 | app->search[n] = c; |
||
| 689 | app->search[n + 1] = 0; |
||
| 690 | winrepaintsearch(app); |
||
| 691 | } |
||
| 692 | } |
||
| 693 | return; |
||
| 694 | } |
||
| 695 | |||
| 696 | /* |
||
| 697 | * Save numbers typed for later |
||
| 698 | */ |
||
| 699 | |||
| 700 | if (c >= '0' && c <= '9') |
||
| 701 | { |
||
| 702 | app->number[app->numberlen++] = c; |
||
| 703 | app->number[app->numberlen] = '\0'; |
||
| 704 | } |
||
| 705 | |||
| 706 | switch (c) |
||
| 707 | { |
||
| 708 | |||
| 709 | case '?': |
||
| 710 | winhelp(app); |
||
| 711 | break; |
||
| 712 | |||
| 713 | case 'q': |
||
| 714 | winclose(app); |
||
| 715 | break; |
||
| 716 | |||
| 717 | /* |
||
| 718 | * Zoom and rotate |
||
| 719 | */ |
||
| 720 | |||
| 721 | case '+': |
||
| 722 | case '=': |
||
| 723 | app->resolution *= ZOOMSTEP; |
||
| 724 | if (app->resolution > MAXRES) |
||
| 725 | app->resolution = MAXRES; |
||
| 726 | pdfapp_showpage(app, 0, 1, 1); |
||
| 727 | break; |
||
| 728 | case '-': |
||
| 729 | app->resolution /= ZOOMSTEP; |
||
| 730 | if (app->resolution < MINRES) |
||
| 731 | app->resolution = MINRES; |
||
| 732 | pdfapp_showpage(app, 0, 1, 1); |
||
| 733 | break; |
||
| 734 | |||
| 735 | case 'L': |
||
| 736 | app->rotate -= 90; |
||
| 737 | pdfapp_showpage(app, 0, 1, 1); |
||
| 738 | break; |
||
| 739 | case 'R': |
||
| 740 | app->rotate += 90; |
||
| 741 | pdfapp_showpage(app, 0, 1, 1); |
||
| 742 | break; |
||
| 743 | |||
| 744 | case 'c': |
||
| 745 | app->grayscale ^= 1; |
||
| 746 | pdfapp_showpage(app, 0, 1, 1); |
||
| 747 | break; |
||
| 748 | |||
| 749 | #ifndef NDEBUG |
||
| 750 | case 'a': |
||
| 751 | app->rotate -= 15; |
||
| 752 | pdfapp_showpage(app, 0, 1, 1); |
||
| 753 | break; |
||
| 754 | case 's': |
||
| 755 | app->rotate += 15; |
||
| 756 | pdfapp_showpage(app, 0, 1, 1); |
||
| 757 | break; |
||
| 758 | #endif |
||
| 759 | |||
| 760 | /* |
||
| 761 | * Pan view, but dont need to repaint image |
||
| 762 | */ |
||
| 763 | |||
| 764 | case 'w': |
||
| 765 | app->shrinkwrap = 1; |
||
| 766 | app->panx = app->pany = 0; |
||
| 767 | pdfapp_showpage(app, 0, 0, 1); |
||
| 768 | break; |
||
| 769 | |||
| 770 | case 'h': |
||
| 771 | app->panx += app->image->w / 10; |
||
| 772 | pdfapp_showpage(app, 0, 0, 1); |
||
| 773 | break; |
||
| 774 | |||
| 775 | case 'j': |
||
| 776 | app->pany -= app->image->h / 10; |
||
| 777 | pdfapp_showpage(app, 0, 0, 1); |
||
| 778 | break; |
||
| 779 | |||
| 780 | case 'k': |
||
| 781 | app->pany += app->image->h / 10; |
||
| 782 | pdfapp_showpage(app, 0, 0, 1); |
||
| 783 | break; |
||
| 784 | |||
| 785 | case 'l': |
||
| 786 | app->panx -= app->image->w / 10; |
||
| 787 | pdfapp_showpage(app, 0, 0, 1); |
||
| 788 | break; |
||
| 789 | |||
| 790 | /* |
||
| 791 | * Page navigation |
||
| 792 | */ |
||
| 793 | |||
| 794 | case 'g': |
||
| 795 | case '\n': |
||
| 796 | case '\r': |
||
| 797 | if (app->numberlen > 0) |
||
| 798 | app->pageno = atoi(app->number); |
||
| 799 | else |
||
| 800 | app->pageno = 1; |
||
| 801 | break; |
||
| 802 | |||
| 803 | case 'G': |
||
| 804 | app->pageno = app->pagecount; |
||
| 805 | break; |
||
| 806 | |||
| 807 | case 'm': |
||
| 808 | if (app->numberlen > 0) |
||
| 809 | { |
||
| 810 | int idx = atoi(app->number); |
||
| 811 | |||
| 812 | if (idx >= 0 && idx < nelem(app->marks)) |
||
| 813 | app->marks[idx] = app->pageno; |
||
| 814 | } |
||
| 815 | else |
||
| 816 | { |
||
| 817 | if (app->histlen + 1 == 256) |
||
| 818 | { |
||
| 819 | memmove(app->hist, app->hist + 1, sizeof(int) * 255); |
||
| 820 | app->histlen --; |
||
| 821 | } |
||
| 822 | app->hist[app->histlen++] = app->pageno; |
||
| 823 | } |
||
| 824 | break; |
||
| 825 | |||
| 826 | case 't': |
||
| 827 | if (app->numberlen > 0) |
||
| 828 | { |
||
| 829 | int idx = atoi(app->number); |
||
| 830 | |||
| 831 | if (idx >= 0 && idx < nelem(app->marks)) |
||
| 832 | if (app->marks[idx] > 0) |
||
| 833 | app->pageno = app->marks[idx]; |
||
| 834 | } |
||
| 835 | else if (app->histlen > 0) |
||
| 836 | app->pageno = app->hist[--app->histlen]; |
||
| 837 | break; |
||
| 838 | |||
| 839 | /* |
||
| 840 | * Back and forth ... |
||
| 841 | */ |
||
| 842 | |||
| 843 | case ',': |
||
| 844 | panto = PAN_TO_BOTTOM; |
||
| 845 | if (app->numberlen > 0) |
||
| 846 | app->pageno -= atoi(app->number); |
||
| 847 | else |
||
| 848 | app->pageno--; |
||
| 849 | break; |
||
| 850 | |||
| 851 | case '.': |
||
| 852 | panto = PAN_TO_TOP; |
||
| 853 | if (app->numberlen > 0) |
||
| 854 | app->pageno += atoi(app->number); |
||
| 855 | else |
||
| 856 | app->pageno++; |
||
| 857 | break; |
||
| 858 | |||
| 859 | case 'b': |
||
| 860 | panto = DONT_PAN; |
||
| 861 | if (app->numberlen > 0) |
||
| 862 | app->pageno -= atoi(app->number); |
||
| 863 | else |
||
| 864 | app->pageno--; |
||
| 865 | break; |
||
| 866 | |||
| 867 | case ' ': |
||
| 868 | panto = DONT_PAN; |
||
| 869 | if (app->numberlen > 0) |
||
| 870 | app->pageno += atoi(app->number); |
||
| 871 | else |
||
| 872 | app->pageno++; |
||
| 873 | break; |
||
| 874 | |||
| 875 | case ']': |
||
| 876 | panto = PAN_TO_TOP; |
||
| 877 | app->pageno++; |
||
| 878 | break; |
||
| 879 | |||
| 880 | case '[': |
||
| 881 | panto = PAN_TO_TOP; |
||
| 882 | app->pageno--; |
||
| 883 | break; |
||
| 884 | |||
| 885 | |||
| 886 | case '<': |
||
| 887 | panto = PAN_TO_TOP; |
||
| 888 | app->pageno -= 10; |
||
| 889 | break; |
||
| 890 | case '>': |
||
| 891 | panto = PAN_TO_TOP; |
||
| 892 | app->pageno += 10; |
||
| 893 | break; |
||
| 894 | |||
| 895 | /* |
||
| 896 | * Reloading the file... |
||
| 897 | */ |
||
| 898 | |||
| 899 | case 'r': |
||
| 900 | panto = DONT_PAN; |
||
| 901 | oldpage = -1; |
||
| 902 | winreloadfile(app); |
||
| 903 | break; |
||
| 904 | |||
| 905 | /* |
||
| 906 | * Searching |
||
| 907 | */ |
||
| 908 | |||
| 909 | case '/': |
||
| 910 | app->isediting = 1; |
||
| 911 | app->search[0] = 0; |
||
| 912 | app->hit = -1; |
||
| 913 | app->hitlen = 0; |
||
| 914 | winrepaintsearch(app); |
||
| 915 | break; |
||
| 916 | |||
| 917 | case 'n': |
||
| 918 | pdfapp_searchforward(app, &panto); |
||
| 919 | loadpage = 0; |
||
| 920 | break; |
||
| 921 | |||
| 922 | case 'N': |
||
| 923 | pdfapp_searchbackward(app, &panto); |
||
| 924 | loadpage = 0; |
||
| 925 | break; |
||
| 926 | |||
| 927 | } |
||
| 928 | |||
| 929 | if (c < '0' || c > '9') |
||
| 930 | app->numberlen = 0; |
||
| 931 | |||
| 932 | if (app->pageno < 1) |
||
| 933 | app->pageno = 1; |
||
| 934 | if (app->pageno > app->pagecount) |
||
| 935 | app->pageno = app->pagecount; |
||
| 936 | |||
| 937 | if (app->pageno != oldpage) |
||
| 938 | { |
||
| 939 | switch (panto) |
||
| 940 | { |
||
| 941 | case PAN_TO_TOP: |
||
| 942 | app->pany = 0; |
||
| 943 | break; |
||
| 944 | case PAN_TO_BOTTOM: |
||
| 945 | app->pany = -2000; |
||
| 946 | break; |
||
| 947 | case DONT_PAN: |
||
| 948 | break; |
||
| 949 | } |
||
| 950 | pdfapp_showpage(app, loadpage, 1, 1); |
||
| 951 | } |
||
| 952 | } |
||
| 953 | |||
| 954 | void pdfapp_onmouse(pdfapp_t *app, int x, int y, int btn, int modifiers, int state) |
||
| 955 | { |
||
| 956 | pdf_link *link; |
||
| 957 | fz_matrix ctm; |
||
| 958 | fz_point p; |
||
| 959 | |||
| 960 | p.x = x - app->panx + app->image->x; |
||
| 961 | p.y = y - app->pany + app->image->y; |
||
| 962 | |||
| 963 | ctm = pdfapp_viewctm(app); |
||
| 964 | ctm = fz_invert_matrix(ctm); |
||
| 965 | |||
| 966 | p = fz_transform_point(ctm, p); |
||
| 967 | |||
| 968 | for (link = app->page_links; link; link = link->next) |
||
| 969 | { |
||
| 970 | if (p.x >= link->rect.x0 && p.x <= link->rect.x1) |
||
| 971 | if (p.y >= link->rect.y0 && p.y <= link->rect.y1) |
||
| 972 | break; |
||
| 973 | } |
||
| 974 | |||
| 975 | if (link) |
||
| 976 | { |
||
| 977 | wincursor(app, HAND); |
||
| 978 | if (btn == 1 && state == 1) |
||
| 979 | { |
||
| 980 | if (link->kind == PDF_LINK_URI) |
||
| 981 | pdfapp_gotouri(app, link->dest); |
||
| 982 | else if (link->kind == PDF_LINK_GOTO) |
||
| 983 | pdfapp_gotopage(app, fz_array_get(link->dest, 0)); /* [ pageobj ... ] */ |
||
| 984 | return; |
||
| 985 | } |
||
| 986 | } |
||
| 987 | else |
||
| 988 | { |
||
| 989 | wincursor(app, ARROW); |
||
| 990 | } |
||
| 991 | |||
| 992 | if (state == 1) |
||
| 993 | { |
||
| 994 | if (btn == 1 && !app->iscopying) |
||
| 995 | { |
||
| 996 | app->ispanning = 1; |
||
| 997 | app->selx = x; |
||
| 998 | app->sely = y; |
||
| 999 | app->beyondy = 0; |
||
| 1000 | } |
||
| 1001 | if (btn == 3 && !app->ispanning) |
||
| 1002 | { |
||
| 1003 | app->iscopying = 1; |
||
| 1004 | app->selx = x; |
||
| 1005 | app->sely = y; |
||
| 1006 | app->selr.x0 = x; |
||
| 1007 | app->selr.x1 = x; |
||
| 1008 | app->selr.y0 = y; |
||
| 1009 | app->selr.y1 = y; |
||
| 1010 | } |
||
| 1011 | if (btn == 4 || btn == 5) /* scroll wheel */ |
||
| 1012 | { |
||
| 1013 | int dir = btn == 4 ? 1 : -1; |
||
| 1014 | app->ispanning = app->iscopying = 0; |
||
| 1015 | if (modifiers & (1<<2)) |
||
| 1016 | { |
||
| 1017 | /* zoom in/out if ctrl is pressed */ |
||
| 1018 | if (dir > 0) |
||
| 1019 | app->resolution *= ZOOMSTEP; |
||
| 1020 | else |
||
| 1021 | app->resolution /= ZOOMSTEP; |
||
| 1022 | if (app->resolution > MAXRES) |
||
| 1023 | app->resolution = MAXRES; |
||
| 1024 | if (app->resolution < MINRES) |
||
| 1025 | app->resolution = MINRES; |
||
| 1026 | pdfapp_showpage(app, 0, 1, 1); |
||
| 1027 | } |
||
| 1028 | else |
||
| 1029 | { |
||
| 1030 | /* scroll up/down, or left/right if |
||
| 1031 | shift is pressed */ |
||
| 1032 | int isx = (modifiers & (1<<0)); |
||
| 1033 | int xstep = isx ? 20 * dir : 0; |
||
| 1034 | int ystep = !isx ? 20 * dir : 0; |
||
| 1035 | pdfapp_panview(app, app->panx + xstep, app->pany + ystep); |
||
| 1036 | } |
||
| 1037 | } |
||
| 1038 | } |
||
| 1039 | |||
| 1040 | else if (state == -1) |
||
| 1041 | { |
||
| 1042 | if (app->iscopying) |
||
| 1043 | { |
||
| 1044 | app->iscopying = 0; |
||
| 1045 | app->selr.x0 = MIN(app->selx, x) - app->panx + app->image->x; |
||
| 1046 | app->selr.x1 = MAX(app->selx, x) - app->panx + app->image->x; |
||
| 1047 | app->selr.y0 = MIN(app->sely, y) - app->pany + app->image->y; |
||
| 1048 | app->selr.y1 = MAX(app->sely, y) - app->pany + app->image->y; |
||
| 1049 | winrepaint(app); |
||
| 1050 | if (app->selr.x0 < app->selr.x1 && app->selr.y0 < app->selr.y1) |
||
| 1051 | windocopy(app); |
||
| 1052 | } |
||
| 1053 | if (app->ispanning) |
||
| 1054 | app->ispanning = 0; |
||
| 1055 | } |
||
| 1056 | |||
| 1057 | else if (app->ispanning) |
||
| 1058 | { |
||
| 1059 | int newx = app->panx + x - app->selx; |
||
| 1060 | int newy = app->pany + y - app->sely; |
||
| 1061 | /* Scrolling beyond limits implies flipping pages */ |
||
| 1062 | /* Are we requested to scroll beyond limits? */ |
||
| 1063 | if (newy + app->image->h < app->winh || newy > 0) |
||
| 1064 | { |
||
| 1065 | /* Yes. We can assume that deltay != 0 */ |
||
| 1066 | int deltay = y - app->sely; |
||
| 1067 | /* Check whether the panning has occured in the |
||
| 1068 | * direction that we are already crossing the |
||
| 1069 | * limit it. If not, we can conclude that we |
||
| 1070 | * have switched ends of the page and will thus |
||
| 1071 | * start over counting. |
||
| 1072 | */ |
||
| 1073 | if( app->beyondy == 0 || (app->beyondy ^ deltay) >= 0 ) |
||
| 1074 | { |
||
| 1075 | /* Updating how far we are beyond and |
||
| 1076 | * flipping pages if beyond threshhold |
||
| 1077 | */ |
||
| 1078 | app->beyondy += deltay; |
||
| 1079 | if (app->beyondy > BEYOND_THRESHHOLD) |
||
| 1080 | { |
||
| 1081 | if( app->pageno > 1 ) |
||
| 1082 | { |
||
| 1083 | app->pageno--; |
||
| 1084 | pdfapp_showpage(app, 1, 1, 1); |
||
| 1085 | newy = -app->image->h; |
||
| 1086 | } |
||
| 1087 | app->beyondy = 0; |
||
| 1088 | } |
||
| 1089 | else if (app->beyondy < -BEYOND_THRESHHOLD) |
||
| 1090 | { |
||
| 1091 | if( app->pageno < app->pagecount ) |
||
| 1092 | { |
||
| 1093 | app->pageno++; |
||
| 1094 | pdfapp_showpage(app, 1, 1, 1); |
||
| 1095 | newy = 0; |
||
| 1096 | } |
||
| 1097 | app->beyondy = 0; |
||
| 1098 | } |
||
| 1099 | } |
||
| 1100 | else |
||
| 1101 | app->beyondy = 0; |
||
| 1102 | } |
||
| 1103 | /* Although at this point we've already determined that |
||
| 1104 | * or that no scrolling will be performed in |
||
| 1105 | * y-direction, the x-direction has not yet been taken |
||
| 1106 | * care off. Therefore |
||
| 1107 | */ |
||
| 1108 | pdfapp_panview(app, newx, newy); |
||
| 1109 | |||
| 1110 | app->selx = x; |
||
| 1111 | app->sely = y; |
||
| 1112 | } |
||
| 1113 | |||
| 1114 | else if (app->iscopying) |
||
| 1115 | { |
||
| 1116 | app->selr.x0 = MIN(app->selx, x) - app->panx + app->image->x; |
||
| 1117 | app->selr.x1 = MAX(app->selx, x) - app->panx + app->image->x; |
||
| 1118 | app->selr.y0 = MIN(app->sely, y) - app->pany + app->image->y; |
||
| 1119 | app->selr.y1 = MAX(app->sely, y) - app->pany + app->image->y; |
||
| 1120 | winrepaint(app); |
||
| 1121 | } |
||
| 1122 | |||
| 1123 | } |
||
| 1124 | |||
| 1125 | void pdfapp_oncopy(pdfapp_t *app, unsigned short *ucsbuf, int ucslen) |
||
| 1126 | { |
||
| 1127 | fz_bbox hitbox; |
||
| 1128 | fz_matrix ctm; |
||
| 1129 | fz_text_span *span; |
||
| 1130 | int c, i, p; |
||
| 1131 | int seen; |
||
| 1132 | |||
| 1133 | int x0 = app->selr.x0; |
||
| 1134 | int x1 = app->selr.x1; |
||
| 1135 | int y0 = app->selr.y0; |
||
| 1136 | int y1 = app->selr.y1; |
||
| 1137 | |||
| 1138 | ctm = pdfapp_viewctm(app); |
||
| 1139 | |||
| 1140 | p = 0; |
||
| 1141 | for (span = app->page_text; span; span = span->next) |
||
| 1142 | { |
||
| 1143 | seen = 0; |
||
| 1144 | |||
| 1145 | for (i = 0; i < span->len; i++) |
||
| 1146 | { |
||
| 1147 | hitbox = fz_transform_bbox(ctm, span->text[i].bbox); |
||
| 1148 | c = span->text[i].c; |
||
| 1149 | if (c < 32) |
||
| 1150 | c = '?'; |
||
| 1151 | if (hitbox.x1 >= x0 && hitbox.x0 <= x1 && hitbox.y1 >= y0 && hitbox.y0 <= y1) |
||
| 1152 | { |
||
| 1153 | if (p < ucslen - 1) |
||
| 1154 | ucsbuf[p++] = c; |
||
| 1155 | seen = 1; |
||
| 1156 | } |
||
| 1157 | } |
||
| 1158 | |||
| 1159 | if (seen && span->eol) |
||
| 1160 | { |
||
| 1161 | #ifdef _WIN32 |
||
| 1162 | if (p < ucslen - 1) |
||
| 1163 | ucsbuf[p++] = '\r'; |
||
| 1164 | #endif |
||
| 1165 | if (p < ucslen - 1) |
||
| 1166 | ucsbuf[p++] = '\n'; |
||
| 1167 | } |
||
| 1168 | } |
||
| 1169 | |||
| 1170 | ucsbuf[p] = 0; |
||
| 1171 | } |