mangle/mangle/book.py

441 lines
14 KiB
Python

# Copyright (C) 2010 Alex Yatskov
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from os.path import basename
import os.path
import tempfile
from zipfile import ZipFile
from PyQt4 import QtGui, QtCore, QtXml, uic
from natsort import natsorted
from about import DialogAbout
from convert import DialogConvert
from image import ImageFlags
from options import DialogOptions
import util
class Book(object):
DefaultDevice = 'Kindle Paperwhite'
DefaultOutputFormat = 'CBZ only'
DefaultOverwrite = True
DefaultImageFlags = ImageFlags.Orient | ImageFlags.Resize | ImageFlags.Quantize
def __init__(self):
self.images = []
self.filename = None
self.modified = False
self.title = None
self.titleSet = False
self.device = Book.DefaultDevice
self.overwrite = Book.DefaultOverwrite
self.imageFlags = Book.DefaultImageFlags
self.outputFormat = Book.DefaultOutputFormat
def save(self, filename):
document = QtXml.QDomDocument()
root = document.createElement('book')
document.appendChild(root)
root.setAttribute('title', self.title)
root.setAttribute('overwrite', 'true' if self.overwrite else 'false')
root.setAttribute('device', self.device)
root.setAttribute('imageFlags', self.imageFlags)
root.setAttribute('outputFormat', self.outputFormat)
for filenameImg in self.images:
itemImg = document.createElement('image')
root.appendChild(itemImg)
itemImg.setAttribute('filename', filenameImg)
textXml = document.toString(4).toUtf8()
try:
fileXml = open(unicode(filename), 'w')
fileXml.write(textXml)
fileXml.close()
except IOError:
raise RuntimeError('Cannot create book file %s' % filename)
self.filename = filename
self.modified = False
def load(self, filename):
try:
fileXml = open(unicode(filename), 'r')
textXml = fileXml.read()
fileXml.close()
except IOError:
raise RuntimeError('Cannot open book file %s' % filename)
document = QtXml.QDomDocument()
if not document.setContent(QtCore.QString.fromUtf8(textXml)):
raise RuntimeError('Error parsing book file %s' % filename)
root = document.documentElement()
if root.tagName() != 'book':
raise RuntimeError('Unexpected book format in file %s' % filename)
self.title = root.attribute('title', 'Untitled')
self.overwrite = root.attribute('overwrite', 'true' if Book.DefaultOverwrite else 'false') == 'true'
self.device = root.attribute('device', Book.DefaultDevice)
self.outputFormat = root.attribute('outputFormat', Book.DefaultOutputFormat)
self.imageFlags = int(root.attribute('imageFlags', str(Book.DefaultImageFlags)))
self.filename = filename
self.modified = False
self.images = []
items = root.elementsByTagName('image')
if items is None:
return
for i in xrange(0, len(items)):
item = items.at(i).toElement()
if item.hasAttribute('filename'):
self.images.append(item.attribute('filename'))
class MainWindowBook(QtGui.QMainWindow):
def __init__(self, filename=None):
QtGui.QMainWindow.__init__(self)
uic.loadUi(util.buildResPath('mangle/ui/book.ui'), self)
self.listWidgetFiles.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
self.actionFileNew.triggered.connect(self.onFileNew)
self.actionFileOpen.triggered.connect(self.onFileOpen)
self.actionFileSave.triggered.connect(self.onFileSave)
self.actionFileSaveAs.triggered.connect(self.onFileSaveAs)
self.actionBookOptions.triggered.connect(self.onBookOptions)
self.actionBookAddFiles.triggered.connect(self.onBookAddFiles)
self.actionBookAddDirectory.triggered.connect(self.onBookAddDirectory)
self.actionBookShiftUp.triggered.connect(self.onBookShiftUp)
self.actionBookShiftDown.triggered.connect(self.onBookShiftDown)
self.actionBookRemove.triggered.connect(self.onBookRemove)
self.actionBookExport.triggered.connect(self.onBookExport)
self.actionHelpAbout.triggered.connect(self.onHelpAbout)
self.actionHelpHomepage.triggered.connect(self.onHelpHomepage)
self.listWidgetFiles.customContextMenuRequested.connect(self.onFilesContextMenu)
self.listWidgetFiles.itemDoubleClicked.connect(self.onFilesDoubleClick)
self.book = Book()
if filename is not None:
self.loadBook(filename)
def closeEvent(self, event):
if not self.saveIfNeeded():
event.ignore()
def dragEnterEvent(self, event):
if event.mimeData().hasUrls():
event.acceptProposedAction()
def dropEvent(self, event):
directories = []
filenames = []
for url in event.mimeData().urls():
filename = url.toLocalFile()
if self.isImageFile(filename):
filenames.append(filename)
elif os.path.isdir(unicode(filename)):
directories.append(filename)
self.addImageDirs(directories)
self.addImageFiles(filenames)
def onFileNew(self):
if self.saveIfNeeded():
self.book = Book()
self.listWidgetFiles.clear()
def onFileOpen(self):
if not self.saveIfNeeded():
return
filename = QtGui.QFileDialog.getOpenFileName(
parent=self,
caption='Select a book file to open',
filter='Mangle files (*.mngl);;All files (*.*)'
)
if not filename.isNull():
self.loadBook(self.cleanupBookFile(filename))
def onFileSave(self):
self.saveBook(False)
def onFileSaveAs(self):
self.saveBook(True)
def onFilesContextMenu(self, point):
menu = QtGui.QMenu(self)
menu.addAction(self.menu_Add.menuAction())
if len(self.listWidgetFiles.selectedItems()) > 0:
menu.addAction(self.menu_Shift.menuAction())
menu.addAction(self.actionBookRemove)
menu.exec_(self.listWidgetFiles.mapToGlobal(point))
def onFilesDoubleClick(self, item):
services = QtGui.QDesktopServices()
services.openUrl(QtCore.QUrl.fromLocalFile(item.text()))
def onBookAddFiles(self):
filenames = QtGui.QFileDialog.getOpenFileNames(
parent=self,
caption='Select image file(s) to add',
filter='Image files (*.jpeg *.jpg *.gif *.png);;Comic files (*.cbz)'
)
if(self.containsCbzFile(filenames)):
self.addCBZFiles(filenames)
else:
self.addImageFiles(filenames)
def onBookAddDirectory(self):
directory = QtGui.QFileDialog.getExistingDirectory(self, 'Select an image directory to add')
if not directory.isNull():
self.book.title = os.path.basename(os.path.normpath(unicode(directory)))
self.addImageDirs([directory])
def onBookShiftUp(self):
self.shiftImageFiles(-1)
def onBookShiftDown(self):
self.shiftImageFiles(1)
def onBookRemove(self):
self.removeImageFiles()
def onBookOptions(self):
dialog = DialogOptions(self, self.book)
if dialog.exec_() == QtGui.QDialog.Accepted:
self.book.titleSet = True
def onBookExport(self):
if len(self.book.images) == 0:
QtGui.QMessageBox.warning(self, 'Mangle', 'This book has no images to export')
return
if not self.book.titleSet: # if self.book.title is None:
dialog = DialogOptions(self, self.book)
if dialog.exec_() == QtGui.QDialog.Rejected:
return
else:
self.book.titleSet = True
directory = QtGui.QFileDialog.getExistingDirectory(self, 'Select a directory to export book to')
if not directory.isNull():
dialog = DialogConvert(self, self.book, directory)
dialog.exec_()
def onHelpHomepage(self):
services = QtGui.QDesktopServices()
services.openUrl(QtCore.QUrl('http://foosoft.net/mangle'))
def onHelpAbout(self):
dialog = DialogAbout(self)
dialog.exec_()
def saveIfNeeded(self):
if not self.book.modified:
return True
result = QtGui.QMessageBox.question(
self,
'Mangle',
'Save changes to the current book?',
QtGui.QMessageBox.Yes | QtGui.QMessageBox.No | QtGui.QMessageBox.Cancel,
QtGui.QMessageBox.Yes
)
return (
result == QtGui.QMessageBox.No or
result == QtGui.QMessageBox.Yes and self.saveBook()
)
def saveBook(self, browse=False):
if self.book.title is None:
QtGui.QMessageBox.warning(self, 'Mangle', 'You must specify a title for this book before saving')
return False
filename = self.book.filename
if filename is None or browse:
filename = QtGui.QFileDialog.getSaveFileName(
parent=self,
caption='Select a book file to save as',
filter='Mangle files (*.mngl);;All files (*.*)'
)
if filename.isNull():
return False
filename = self.cleanupBookFile(filename)
try:
self.book.save(filename)
except RuntimeError, error:
QtGui.QMessageBox.critical(self, 'Mangle', str(error))
return False
return True
def loadBook(self, filename):
try:
self.book.load(filename)
except RuntimeError, error:
QtGui.QMessageBox.critical(self, 'Mangle', str(error))
else:
self.listWidgetFiles.clear()
for image in self.book.images:
self.listWidgetFiles.addItem(image)
def shiftImageFile(self, row, delta):
validShift = (
(delta > 0 and row < self.listWidgetFiles.count() - delta) or
(delta < 0 and row >= abs(delta))
)
if not validShift:
return
item = self.listWidgetFiles.takeItem(row)
self.listWidgetFiles.insertItem(row + delta, item)
self.listWidgetFiles.setItemSelected(item, True)
self.book.modified = True
self.book.images[row], self.book.images[row + delta] = (
self.book.images[row + delta], self.book.images[row]
)
def shiftImageFiles(self, delta):
items = self.listWidgetFiles.selectedItems()
rows = sorted([self.listWidgetFiles.row(item) for item in items])
for row in rows if delta < 0 else reversed(rows):
self.shiftImageFile(row, delta)
def removeImageFiles(self):
for item in self.listWidgetFiles.selectedItems():
row = self.listWidgetFiles.row(item)
self.listWidgetFiles.takeItem(row)
self.book.images.remove(item.text())
self.book.modified = True
def addImageFiles(self, filenames):
filenamesListed = []
for i in xrange(0, self.listWidgetFiles.count()):
filenamesListed.append(self.listWidgetFiles.item(i).text())
for filename in natsorted(filenames):
if filename not in filenamesListed:
filename = QtCore.QString(filename)
self.listWidgetFiles.addItem(filename)
self.book.images.append(filename)
self.book.modified = True
def addImageDirs(self, directories):
filenames = []
for directory in directories:
for root, _, subfiles in os.walk(unicode(directory)):
for filename in subfiles:
path = os.path.join(root, filename)
if self.isImageFile(path):
filenames.append(path)
self.addImageFiles(filenames)
def addCBZFiles(self, filenames):
directories = []
tempDir = tempfile.gettempdir()
filenames.sort()
filenamesListed = []
for i in xrange(0, self.listWidgetFiles.count()):
filenamesListed.append(self.listWidgetFiles.item(i).text())
for filename in filenames:
folderName = os.path.splitext(basename(str(filename)))[0]
path = tempDir + "/" + folderName + "/"
cbzFile = ZipFile(str(filename))
for f in cbzFile.namelist():
if f.endswith('/'):
try:
os.makedirs(path + f)
except:
pass # the dir exists so we are going to extract the images only.
else:
cbzFile.extract(f, path)
if os.path.isdir(unicode(path)): # Add the directories
directories.append(path)
self.addImageDirs(directories) # Add the files
def isImageFile(self, filename):
imageExts = ['.jpeg', '.jpg', '.gif', '.png']
filename = unicode(filename)
return (
os.path.isfile(filename) and
os.path.splitext(filename)[1].lower() in imageExts
)
def containsCbzFile(self, filenames):
cbzExts = ['.cbz']
for filename in filenames:
filename = unicode(filename)
result = (
os.path.isfile(filename) and
os.path.splitext(filename)[1].lower() in cbzExts
)
if result == True:
return result
return False
def cleanupBookFile(self, filename):
if len(os.path.splitext(unicode(filename))[1]) == 0:
filename += '.mngl'
return filename