| 1 | import threading, gtk, gio, gobject |
| 2 | import lib |
| 3 | |
| 4 | class notdone(Exception): pass |
| 5 | |
| 6 | class future(threading.Thread): |
| 7 | prog = None |
| 8 | |
| 9 | def __init__(self): |
| 10 | super(future, self).__init__() |
| 11 | self._val = None |
| 12 | self._exc = None |
| 13 | self._notlist = [] |
| 14 | self._started = False |
| 15 | self.setDaemon(True) |
| 16 | |
| 17 | def start(self): |
| 18 | if not self._started: |
| 19 | super(future, self).start() |
| 20 | self._started = True |
| 21 | |
| 22 | def run(self): |
| 23 | try: |
| 24 | val = self.value() |
| 25 | except Exception as e: |
| 26 | with gtk.gdk.lock: |
| 27 | self._exc = e |
| 28 | for cb in self._notlist: |
| 29 | cb() |
| 30 | self._notlist = [] |
| 31 | else: |
| 32 | with gtk.gdk.lock: |
| 33 | self._val = [val] |
| 34 | for cb in self._notlist: |
| 35 | cb() |
| 36 | self._notlist = [] |
| 37 | |
| 38 | # Caller must hold GDK lock |
| 39 | def notify(self, cb): |
| 40 | self.start() |
| 41 | if not self.done: |
| 42 | self._notlist.append(cb) |
| 43 | else: |
| 44 | cb() |
| 45 | |
| 46 | def progcb(self): |
| 47 | with gtk.gdk.lock: |
| 48 | nls = [] |
| 49 | for cb in self._notlist: |
| 50 | if cb(): |
| 51 | nls.append(cb) |
| 52 | self._notlist = nls |
| 53 | |
| 54 | @property |
| 55 | def val(self): |
| 56 | self.start() |
| 57 | if self._exc is not None: |
| 58 | raise self._exc |
| 59 | if self._val is None: |
| 60 | raise notdone() |
| 61 | return self._val[0] |
| 62 | |
| 63 | @property |
| 64 | def done(self): |
| 65 | self.start() |
| 66 | return self._exc != None or self._val != None |
| 67 | |
| 68 | def wait(self): |
| 69 | self.start() |
| 70 | while self.is_alive(): |
| 71 | self.join() |
| 72 | return self.val |
| 73 | |
| 74 | class imgload(future): |
| 75 | def __init__(self, page): |
| 76 | super(imgload, self).__init__() |
| 77 | self.page = page |
| 78 | self.st = None |
| 79 | self.start() |
| 80 | |
| 81 | def value(self): |
| 82 | buf = bytearray() |
| 83 | with self.page.open() as st: |
| 84 | self.p = 0 |
| 85 | self.st = st |
| 86 | while True: |
| 87 | read = st.read(1024) |
| 88 | if read == "": |
| 89 | break |
| 90 | self.p += len(read) |
| 91 | buf.extend(read) |
| 92 | self.progcb() |
| 93 | self.st = None |
| 94 | return gtk.gdk.pixbuf_new_from_stream(gio.memory_input_stream_new_from_data(str(buf))) |
| 95 | |
| 96 | @property |
| 97 | def prog(self): |
| 98 | if self.st is None or self.st.clen is None: |
| 99 | return None |
| 100 | return float(self.p) / float(self.st.clen) |
| 101 | |
| 102 | class pagecache(object): |
| 103 | def __init__(self, sz=50): |
| 104 | self.sz = sz |
| 105 | self.bk = [] |
| 106 | |
| 107 | def __getitem__(self, page): |
| 108 | idl = page.idlist() |
| 109 | for ol, f in self.bk: |
| 110 | if ol == idl: |
| 111 | return f |
| 112 | f = imgload(page) |
| 113 | self.bk.append((idl, f)) |
| 114 | if len(self.bk) > self.sz: |
| 115 | self.bk = self.bk[-sz:] |
| 116 | return f |
| 117 | |
| 118 | class relpageget(future): |
| 119 | def __init__(self, cur, prev, cache=None): |
| 120 | super(relpageget, self).__init__() |
| 121 | self.cur = lib.cursor(cur) |
| 122 | self.prev = prev |
| 123 | self.cache = cache |
| 124 | self.start() |
| 125 | |
| 126 | def value(self): |
| 127 | try: |
| 128 | if self.prev: |
| 129 | page = self.cur.prev() |
| 130 | else: |
| 131 | page = self.cur.next() |
| 132 | except StopIteration: |
| 133 | page = None |
| 134 | else: |
| 135 | if self.cache: |
| 136 | self.cache[page] |
| 137 | return page |
| 138 | |
| 139 | class pageget(future): |
| 140 | def __init__(self, fnode): |
| 141 | super(pageget, self).__init__() |
| 142 | self.fnode = fnode |
| 143 | self.start() |
| 144 | |
| 145 | def value(self): |
| 146 | return lib.cursor(self.fnode).cur |
| 147 | |
| 148 | class ccursor(object): |
| 149 | def __init__(self, ob, cache=None): |
| 150 | self.cur = lib.cursor(ob) |
| 151 | self.prev = relpageget(self.cur, True, cache) |
| 152 | self.next = relpageget(self.cur, False, cache) |
| 153 | |
| 154 | class pageview(gtk.Widget): |
| 155 | def __init__(self, pixbuf): |
| 156 | super(pageview, self).__init__() |
| 157 | self.pixbuf = pixbuf |
| 158 | self.zoomed = None, None |
| 159 | self.fit = True |
| 160 | self.zoom = 1.0 |
| 161 | self.interp = gtk.gdk.INTERP_HYPER |
| 162 | self.off = 0, 0 |
| 163 | |
| 164 | def get_osize(self): |
| 165 | return self.pixbuf.get_width(), self.pixbuf.get_height() |
| 166 | |
| 167 | def get_asize(self): |
| 168 | return self.allocation.width, self.allocation.height |
| 169 | |
| 170 | def do_realize(self): |
| 171 | self.set_flags(self.flags() | gtk.REALIZED) |
| 172 | alloc = self.allocation |
| 173 | self.window = gtk.gdk.Window(self.get_parent_window(), |
| 174 | width=alloc.width, height=alloc.height, |
| 175 | window_type = gtk.gdk.WINDOW_CHILD, |
| 176 | wclass = gtk.gdk.INPUT_OUTPUT, |
| 177 | event_mask = self.get_events() | gtk.gdk.EXPOSURE_MASK |
| 178 | ) |
| 179 | self.window.set_user_data(self) |
| 180 | self.style.attach(self.window) |
| 181 | self.style.set_background(self.window, gtk.STATE_NORMAL) |
| 182 | self.window.move_resize(*alloc) |
| 183 | |
| 184 | def do_unrealize(self): |
| 185 | self.window.set_user_data(None) |
| 186 | |
| 187 | def do_size_request(self, req): |
| 188 | req.width, req.height = self.get_osize() |
| 189 | |
| 190 | def fitzoom(self): |
| 191 | w, h = self.get_osize() |
| 192 | alloc = self.allocation |
| 193 | return min(float(alloc.width) / float(w), float(alloc.height) / float(h)) |
| 194 | |
| 195 | def do_size_allocate(self, alloc): |
| 196 | self.allocation = alloc |
| 197 | if self.fit: |
| 198 | self.zoom = self.fitzoom() |
| 199 | if self.flags() & gtk.REALIZED: |
| 200 | self.window.move_resize(*alloc) |
| 201 | |
| 202 | def get_zoomed(self): |
| 203 | zoom = self.zoom |
| 204 | pz, zbuf = self.zoomed |
| 205 | if pz != zoom: |
| 206 | w, h = self.get_osize() |
| 207 | zbuf = self.pixbuf.scale_simple(int(w * zoom), int(h * zoom), self.interp) |
| 208 | self.zoomed = zoom, zbuf |
| 209 | return zbuf |
| 210 | |
| 211 | def get_zsize(self): |
| 212 | zbuf = self.get_zoomed() |
| 213 | return zbuf.get_width(), zbuf.get_height() |
| 214 | |
| 215 | def do_expose_event(self, event): |
| 216 | aw, ah = self.get_asize() |
| 217 | dw, dh = aw, ah |
| 218 | zbuf = self.get_zoomed() |
| 219 | zw, zh = self.get_zsize() |
| 220 | ox, oy = self.off |
| 221 | dx, dy = 0, 0 |
| 222 | if zw < aw: |
| 223 | dx = (aw - zw) / 2 |
| 224 | dw = zw |
| 225 | if zh < ah: |
| 226 | dy = (ah - zh) / 2 |
| 227 | dh = zh |
| 228 | gc = self.style.fg_gc[gtk.STATE_NORMAL] |
| 229 | self.window.draw_pixbuf(gc, zbuf, ox, oy, dx, dy, dw, dh) |
| 230 | |
| 231 | def set_off(self, off): |
| 232 | aw, ah = self.get_asize() |
| 233 | zw, zh = self.get_zsize() |
| 234 | ox, oy = off |
| 235 | ox, oy = int(ox), int(oy) |
| 236 | if ox > zw - aw: ox = zw - aw |
| 237 | if oy > zh - ah: oy = zh - ah |
| 238 | if ox < 0: ox = 0 |
| 239 | if oy < 0: oy = 0 |
| 240 | self.off = ox, oy |
| 241 | self.queue_draw() |
| 242 | |
| 243 | def set_zoom(self, zoom): |
| 244 | if zoom is not None: zoom = float(zoom) |
| 245 | aw, ah = self.get_asize() |
| 246 | zw, zh = self.get_zsize() |
| 247 | dw, dh = zw - aw, zh - ah |
| 248 | ox, oy = self.off |
| 249 | xa = float(ox) / float(dw) if dw > 0 else 0.5 |
| 250 | ya = float(oy) / float(dh) if dh > 0 else 0.5 |
| 251 | |
| 252 | if zoom is None: |
| 253 | self.fit = True |
| 254 | self.zoom = self.fitzoom() |
| 255 | else: |
| 256 | self.fit = False |
| 257 | self.zoom = zoom |
| 258 | |
| 259 | zw, zh = self.get_zsize() |
| 260 | dw, dh = zw - aw, zh - ah |
| 261 | ox = int(xa * dw) if dw > 0 else 0 |
| 262 | oy = int(ya * dh) if dh > 0 else 0 |
| 263 | self.set_off((ox, oy)) |
| 264 | gobject.type_register(pageview) |
| 265 | |
| 266 | class msgproc(object): |
| 267 | def attach(self, reader): |
| 268 | self.rd = reader |
| 269 | self.msg = gtk.Alignment(0, 0.5, 0, 0) |
| 270 | self.hlay = gtk.HBox() |
| 271 | self.lbl = gtk.Label("") |
| 272 | self.hlay.pack_start(self.lbl) |
| 273 | self.lbl.show() |
| 274 | self.msg.add(self.hlay) |
| 275 | self.hlay.show() |
| 276 | self.rd.sbar.pack_start(self.msg) |
| 277 | self.msg.show() |
| 278 | self._prog = None |
| 279 | |
| 280 | def prog(self, p): |
| 281 | if p is not None and self._prog is None: |
| 282 | self._prog = gtk.ProgressBar() |
| 283 | self._prog.set_fraction(p) |
| 284 | self.hlay.pack_start(self._prog, padding=5) |
| 285 | self._prog.show() |
| 286 | elif p is None and self._prog is not None: |
| 287 | self.hlay.remove(self._prog) |
| 288 | self._prog = None |
| 289 | |
| 290 | def abort(self): |
| 291 | self.rd.sbar.remove(self.msg) |
| 292 | |
| 293 | class pagefetch(msgproc): |
| 294 | def __init__(self, fpage, setcb=None): |
| 295 | self.pg = fpage |
| 296 | self.setcb = setcb |
| 297 | |
| 298 | def attach(self, reader): |
| 299 | super(pagefetch, self).attach(reader) |
| 300 | self.lbl.set_text("Fetching page...") |
| 301 | self.pg.notify(self.haspage) |
| 302 | |
| 303 | def haspage(self): |
| 304 | if self.rd.pagefetch.cur != self: return False |
| 305 | if not self.pg.done: |
| 306 | return True |
| 307 | if self.pg.val is not None: |
| 308 | self.rd.setpage(self.pg.val) |
| 309 | if self.setcb is not None: |
| 310 | self.setcb(self.pg.val) |
| 311 | self.rd.pagefetch.set(None) |
| 312 | |
| 313 | class imgfetch(msgproc): |
| 314 | def __init__(self, fimage): |
| 315 | self.img = fimage |
| 316 | self.upd = False |
| 317 | self.error = None |
| 318 | |
| 319 | def attach(self, reader): |
| 320 | super(imgfetch, self).attach(reader) |
| 321 | self.lbl.set_text("Fetching image...") |
| 322 | self.img.notify(self.imgprog) |
| 323 | |
| 324 | def imgprog(self): |
| 325 | if self.rd.imgfetch.cur != self: return False |
| 326 | if self.img.done: |
| 327 | try: |
| 328 | img = self.img.val |
| 329 | except Exception as e: |
| 330 | self.error = str(e) |
| 331 | else: |
| 332 | self.rd.setimg(img) |
| 333 | self.upd = True |
| 334 | self.rd.imgfetch.set(None) |
| 335 | else: |
| 336 | self.prog(self.img.prog) |
| 337 | return True |
| 338 | |
| 339 | def abort(self): |
| 340 | self.rd.sbar.remove(self.msg) |
| 341 | if not self.upd: |
| 342 | self.rd.setimg(None) |
| 343 | if self.error is not None: |
| 344 | self.rd.pagelbl.set_text("Error fetching image: " + self.error) |
| 345 | |
| 346 | class preload(msgproc): |
| 347 | def __init__(self, fpage): |
| 348 | self.pg = fpage |
| 349 | |
| 350 | def attach(self, reader): |
| 351 | super(preload, self).attach(reader) |
| 352 | self.lbl.set_text("Fetching next page...") |
| 353 | self.pg.notify(self.haspage) |
| 354 | |
| 355 | def haspage(self): |
| 356 | if self.rd.preload.cur != self: return False |
| 357 | if not self.pg.done: return True |
| 358 | if self.pg.val is not None: |
| 359 | self.img = self.rd.cache[self.pg.val] |
| 360 | self.lbl.set_text("Loading next page...") |
| 361 | self.img.notify(self.imgprog) |
| 362 | else: |
| 363 | self.rd.preload.set(None) |
| 364 | |
| 365 | def imgprog(self): |
| 366 | if self.rd.preload.cur != self: return False |
| 367 | if self.img.done: |
| 368 | self.rd.preload.set(None) |
| 369 | else: |
| 370 | self.prog(self.img.prog) |
| 371 | return True |
| 372 | |
| 373 | def abort(self): |
| 374 | self.rd.sbar.remove(self.msg) |
| 375 | |
| 376 | class procslot(object): |
| 377 | __slots__ = ["cur", "p"] |
| 378 | def __init__(self, p): |
| 379 | self.cur = None |
| 380 | self.p = p |
| 381 | |
| 382 | def set(self, proc): |
| 383 | if self.cur is not None: |
| 384 | self.cur.abort() |
| 385 | self.cur = None |
| 386 | if proc is not None: |
| 387 | self.cur = proc |
| 388 | try: |
| 389 | proc.attach(self.p) |
| 390 | except: |
| 391 | self.cur = None |
| 392 | raise |
| 393 | |
| 394 | class reader(gtk.Window): |
| 395 | def __init__(self, manga): |
| 396 | super(reader, self).__init__(gtk.WINDOW_TOPLEVEL) |
| 397 | self.connect("delete_event", lambda wdg, ev, data=None: False) |
| 398 | self.connect("destroy", lambda wdg, data=None: self.quit()) |
| 399 | self.connect("key_press_event", self.key) |
| 400 | self.cache = pagecache() |
| 401 | self.pagefetch = procslot(self) |
| 402 | self.imgfetch = procslot(self) |
| 403 | self.preload = procslot(self) |
| 404 | |
| 405 | vlay = gtk.VBox() |
| 406 | self.pfr = gtk.Frame(None) |
| 407 | self.pfr.set_shadow_type(gtk.SHADOW_NONE) |
| 408 | vlay.pack_start(self.pfr) |
| 409 | self.pfr.show() |
| 410 | self.sbar = gtk.HBox() |
| 411 | self.pagelbl = gtk.Label("") |
| 412 | algn = gtk.Alignment(0, 0.5, 0, 0) |
| 413 | algn.add(self.pagelbl) |
| 414 | self.pagelbl.show() |
| 415 | self.sbar.pack_start(algn) |
| 416 | algn.show() |
| 417 | vlay.pack_end(self.sbar, False) |
| 418 | self.sbar.show() |
| 419 | self.add(vlay) |
| 420 | vlay.show() |
| 421 | |
| 422 | self.manga = manga |
| 423 | self.page = None |
| 424 | self.fetchpage(pageget(self.manga)) |
| 425 | self.updtitle() |
| 426 | self.point = None |
| 427 | |
| 428 | def updpagelbl(self): |
| 429 | if self.page is None: |
| 430 | self.pagelbl.set_text("") |
| 431 | else: |
| 432 | w, h = self.page.get_osize() |
| 433 | self.pagelbl.set_text(u"%s\u00d7%s (%d%%)" % (w, h, int(self.page.zoom * 100))) |
| 434 | |
| 435 | def setimg(self, img): |
| 436 | if self.page is not None: |
| 437 | self.pfr.remove(self.page) |
| 438 | self.page = None |
| 439 | if img is not None: |
| 440 | self.page = pageview(img) |
| 441 | self.pfr.add(self.page) |
| 442 | self.page.show() |
| 443 | self.updpagelbl() |
| 444 | |
| 445 | def setpage(self, page): |
| 446 | if self.point is not None: |
| 447 | self.point = None |
| 448 | if page is not None: |
| 449 | self.point = ccursor(page, self.cache) |
| 450 | self.imgfetch.set(imgfetch(self.cache[page])) |
| 451 | else: |
| 452 | self.setimg(None) |
| 453 | |
| 454 | def fetchpage(self, fpage, setcb=None): |
| 455 | self.imgfetch.set(None) |
| 456 | proc = pagefetch(fpage, setcb) |
| 457 | self.pagefetch.set(proc) |
| 458 | return proc |
| 459 | |
| 460 | def updtitle(self): |
| 461 | self.set_title(u"Automanga \u2013 " + self.manga.name) |
| 462 | |
| 463 | @property |
| 464 | def zoom(self): |
| 465 | return self.page.zoom |
| 466 | @zoom.setter |
| 467 | def zoom(self, zoom): |
| 468 | self.page.set_zoom(zoom) |
| 469 | self.updpagelbl() |
| 470 | |
| 471 | def pan(self, off): |
| 472 | ox, oy = self.page.off |
| 473 | px, py = off |
| 474 | self.page.set_off((ox + px, oy + py)) |
| 475 | |
| 476 | def key(self, wdg, ev, data=None): |
| 477 | if ev.keyval in [ord('Q'), ord('q')]: |
| 478 | self.quit() |
| 479 | elif ev.keyval in [65307]: |
| 480 | if self.page is not None: |
| 481 | self.pagefetch.set(None) |
| 482 | self.imgfetch.set(None) |
| 483 | if self.page is not None: |
| 484 | if ev.keyval in [ord('O'), ord('o')]: |
| 485 | self.zoom = 1.0 |
| 486 | elif ev.keyval in [ord('P'), ord('p')]: |
| 487 | self.zoom = None |
| 488 | elif ev.keyval in [ord('[')]: |
| 489 | self.zoom = min(self.zoom * 1.25, 3) |
| 490 | elif ev.keyval in [ord(']')]: |
| 491 | self.zoom /= 1.25 |
| 492 | elif ev.keyval in [ord('h')]: |
| 493 | self.pan((-100, 0)) |
| 494 | elif ev.keyval in [ord('j')]: |
| 495 | self.pan((0, 100)) |
| 496 | elif ev.keyval in [ord('k')]: |
| 497 | self.pan((0, -100)) |
| 498 | elif ev.keyval in [ord('l')]: |
| 499 | self.pan((100, 0)) |
| 500 | elif ev.keyval in [ord('H')]: |
| 501 | self.page.set_off((0, self.page.off[1])) |
| 502 | elif ev.keyval in [ord('J')]: |
| 503 | self.page.set_off((self.page.off[0], self.page.get_asize()[1])) |
| 504 | elif ev.keyval in [ord('K')]: |
| 505 | self.page.set_off((self.page.off[1], 0)) |
| 506 | elif ev.keyval in [ord('L')]: |
| 507 | self.page.set_off((self.page.get_asize()[0], self.page.off[1])) |
| 508 | if self.point is not None: |
| 509 | if ev.keyval in [ord(' ')]: |
| 510 | self.fetchpage(self.point.next, lambda page: self.preload.set(preload(relpageget(page, False, self.cache)))) |
| 511 | elif ev.keyval in [65288]: |
| 512 | self.fetchpage(self.point.prev, lambda page: self.preload.set(preload(relpageget(page, True, self.cache)))) |
| 513 | |
| 514 | def quit(self): |
| 515 | self.hide() |
| 516 | gtk.main_quit() |
| 517 | gobject.type_register(reader) |