mirror of
https://github.com/Kilian/Trimage.git
synced 2026-01-26 01:58:41 -05:00
348 lines
11 KiB
Python
348 lines
11 KiB
Python
import sys
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from os import listdir
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from os import path
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from subprocess import call, PIPE
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from optparse import OptionParser
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from PyQt4.QtCore import *
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from PyQt4.QtGui import *
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from hurry.filesize import *
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from ui import Ui_trimage
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VERSION = "1.0.0"
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#init imagelist
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imagelist = []
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# defaults
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showapp = True
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verbose = True
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class StartQT4(QMainWindow):
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def __init__(self, parent=None):
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QWidget.__init__(self, parent)
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self.ui = Ui_trimage()
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self.ui.setupUi(self)
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# check if apps are installed
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if self.checkapps():
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quit()
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#add quit shortcut
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if hasattr(QKeySequence, "Quit"):
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self.quit_shortcut = QShortcut(QKeySequence(QKeySequence.Quit),
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self)
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else:
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self.quit_shortcut = QShortcut(QKeySequence("Ctrl+Q"), self)
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# disable recompress
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self.ui.recompress.setEnabled(False)
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# make a worker thread
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self.thread = Worker()
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# connect signals with slots
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QObject.connect(self.ui.addfiles, SIGNAL("clicked()"),
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self.file_dialog)
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QObject.connect(self.ui.recompress, SIGNAL("clicked()"),
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self.recompress_files)
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QObject.connect(self.quit_shortcut, SIGNAL("activated()"),
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qApp, SLOT('quit()'))
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QObject.connect(self.ui.processedfiles, SIGNAL("fileDropEvent"),
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self.file_drop)
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QObject.connect(self.thread, SIGNAL("finished()"), self.update_table)
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QObject.connect(self.thread, SIGNAL("terminated()"), self.update_table)
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QObject.connect(self.thread, SIGNAL("updateUi"), self.update_table)
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# activate command line options
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self.commandline_options()
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def commandline_options(self):
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"""Set up the command line options."""
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parser = OptionParser(version="%prog " + VERSION,
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description="GUI front-end to compress png and jpg images via "
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"optipng, advpng and jpegoptim")
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parser.set_defaults(verbose=True)
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parser.add_option("-v", "--verbose", action="store_true",
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dest="verbose", help="Verbose mode (default)")
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parser.add_option("-q", "--quiet", action="store_false",
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dest="verbose", help="Quiet mode")
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parser.add_option("-f", "--file", action="store", type="string",
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dest="filename", help="compresses image and exit")
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parser.add_option("-d", "--directory", action="store", type="string",
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dest="directory", help="compresses images in directory and exit")
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options, args = parser.parse_args()
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# send to correct function
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if options.filename:
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self.file_from_cmd(options.filename)
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if options.directory:
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self.dir_from_cmd(options.directory)
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global verbose
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verbose = options.verbose
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"""
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Input functions
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"""
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def dir_from_cmd(self, directory):
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"""
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Read the files in the directory and send all files to compress_file.
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"""
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global showapp
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showapp = False
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dirpath = path.abspath(path.dirname(directory))
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imagedir = listdir(directory)
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filelist = QStringList()
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for image in imagedir:
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image = QString(path.join(dirpath, image))
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filelist.append(image)
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self.delegator(filelist)
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def file_from_cmd(self, image):
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"""Get the file and send it to compress_file"""
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global showapp
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showapp = False
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image = path.abspath(image)
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filecmdlist = QStringList()
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filecmdlist.append(image)
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self.delegator(filecmdlist)
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def file_drop(self, images):
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"""
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Get a file from the drag and drop handler and send it to compress_file.
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"""
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self.delegator(images)
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def file_dialog(self):
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"""Open a file dialog and send the selected images to compress_file."""
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fd = QFileDialog(self)
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images = fd.getOpenFileNames(self,
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"Select one or more image files to compress",
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"", # directory
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# this is a fix for file dialog differentiating between cases
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"Image files (*.png *.jpg *.jpeg *.PNG *.JPG *.JPEG)")
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self.delegator(images)
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def recompress_files(self):
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"""Send each file in the current file list to compress_file again."""
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global imagelist
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newimagelist = []
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for image in imagelist:
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newimagelist.append(image[4])
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imagelist = []
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self.delegator(newimagelist)
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"""
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Compress functions
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"""
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def delegator(self, images):
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"""
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Recieve all images, check them and send them to the worker thread.
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"""
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delegatorlist = []
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for image in images:
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if self.checkname(image):
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delegatorlist.append((image, QIcon(image)))
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imagelist.append(("Compressing...", "", "", "", image,
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QIcon(QPixmap("compressing.gif"))))
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else:
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sys.stderr.write("[error] %s not an image file" % image)
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self.thread.compress_file(delegatorlist)
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"""
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UI Functions
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"""
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def update_table(self):
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"""Update the table view with the latest file data."""
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tview = self.ui.processedfiles
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# set table model
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tmodel = TriTableModel(self, imagelist,
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["Filename", "Old Size", "New Size", "Compressed"])
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tview.setModel(tmodel)
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# set minimum size of table
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vh = tview.verticalHeader()
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vh.setVisible(False)
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# set horizontal header properties
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hh = tview.horizontalHeader()
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hh.setStretchLastSection(True)
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# set all row heights
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nrows = len(imagelist)
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for row in range(nrows):
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tview.setRowHeight(row, 25)
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# set the second column to be longest
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tview.setColumnWidth(0, 300)
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# enable recompress button
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self.enable_recompress()
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"""
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Helper functions
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"""
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def checkname(self, name):
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"""Check if the file is a jpg or png."""
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return path.splitext(str(name))[1].lower() in [".jpg", ".jpeg", ".png"]
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def enable_recompress(self):
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"""Enable the recompress button."""
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self.ui.recompress.setEnabled(True)
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def checkapps(self):
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#check if apps exist
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status = False
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retcode = call("jpegoptim --version", shell=True, stdout=PIPE)
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if retcode != 0:
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status = True
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sys.stderr.write("[error] please install jpegoptim")
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retcode = call("optipng -v", shell=True, stdout=PIPE)
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if retcode != 0:
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status = True
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sys.stderr.write("[error] please install optipng")
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retcode = call("advpng --version", shell=True, stdout=PIPE)
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if retcode != 0:
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status = True
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sys.stderr.write("[error] please install advancecomp")
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return status
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class TriTableModel(QAbstractTableModel):
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def __init__(self, parent, imagelist, header, *args):
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"""
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@param parent Qt parent object.
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@param imagelist A list of tuples.
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@param header A list of strings.
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"""
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QAbstractTableModel.__init__(self, parent, *args)
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self.imagelist = imagelist
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self.header = header
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def rowCount(self, parent):
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"""Count the number of rows."""
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return len(self.imagelist)
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def columnCount(self, parent):
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"""Count the number of columns."""
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return len(self.header)
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def data(self, index, role):
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"""Fill the table with data."""
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if not index.isValid():
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return QVariant()
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elif role == Qt.DisplayRole:
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data = self.imagelist[index.row()][index.column()]
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return QVariant(data)
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elif index.column() == 0 and role == Qt.DecorationRole:
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# decorate column 0 with an icon of the image itself
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f_icon = self.imagelist[index.row()][5]
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return QVariant(f_icon)
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else:
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return QVariant()
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def headerData(self, col, orientation, role):
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"""Fill the table headers."""
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if orientation == Qt.Horizontal and (role == Qt.DisplayRole or
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role == Qt.DecorationRole):
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return QVariant(self.header[col])
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return QVariant()
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class Worker(QThread):
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def __init__(self, parent=None):
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QThread.__init__(self, parent)
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self.exiting = False
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def __del__(self):
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self.exiting = True
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self.wait()
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def compress_file(self, images):
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"""Start the worker thread."""
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self.images = images
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self.start()
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def run(self):
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"""Compress the given file, get data from it and call update_table."""
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global imagelist
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for image in self.images:
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#gather old file data
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filename = str(image[0])
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icon = image[1]
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oldfile = QFileInfo(filename)
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name = oldfile.fileName()
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oldfilesize = oldfile.size()
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oldfilesizestr = size(oldfilesize, system=alternative)
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# get extention
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extention = path.splitext(filename)[1]
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#decide with tool to use
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if extention in [".jpg", ".jpeg"]:
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runString = "jpegoptim -f --strip-all '%(file)s'"
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elif extention in [".png"]:
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runString = ("optipng -force -o7 '%(file)s';"
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"advpng -z4 '%(file)s'")
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else:
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sys.stderr.write("[error] %s not an image file" % filename)
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try:
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retcode = call(runString % {"file": filename}, shell=True,
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stdout=PIPE)
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runfile = retcode
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except OSError as e:
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runfile = e
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if runfile == 0:
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#gather new file data
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newfile = QFile(filename)
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newfilesize = newfile.size()
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newfilesizestr = size(newfilesize, system=alternative)
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#calculate ratio and make a nice string
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ratio = 100 - (float(newfilesize) / float(oldfilesize) * 100)
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ratiostr = "%.1f%%" % ratio
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# append current image to list
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for i, image in enumerate(imagelist):
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if image[4] == filename:
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imagelist.remove(image)
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imagelist.insert(i, (name, oldfilesizestr,
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newfilesizestr, ratiostr, filename, icon))
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self.emit(SIGNAL("updateUi"))
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if not showapp and verbose:
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# we work via the commandline
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print("File: " + filename + ", Old Size: "
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+ oldfilesizestr + ", New Size: " + newfilesizestr
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+ ", Ratio: " + ratiostr)
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else:
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sys.stderr.write("[error] %s" % runfile)
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if not showapp:
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#make sure the app quits after all images are done
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quit()
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if __name__ == "__main__":
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app = QApplication(sys.argv)
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myapp = StartQT4()
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if showapp:
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myapp.show()
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sys.exit(app.exec_())
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