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pyaudviz/mainwindow.py

636 lines
24 KiB
Python

from os.path import expanduser
from queue import Queue
from PyQt4 import QtCore, QtGui, uic
from PyQt4.QtCore import QSettings, Qt
from PyQt4.QtGui import QMenu
import sys
import os
import signal
import filecmp
import time
import core
import preview_thread
import video_thread
from presetmanager import PresetManager
from main import LoadDefaultSettings
class PreviewWindow(QtGui.QLabel):
def __init__(self, parent, img):
super(PreviewWindow, self).__init__()
self.parent = parent
self.setFrameStyle(QtGui.QFrame.StyledPanel)
self.pixmap = QtGui.QPixmap(img)
def paintEvent(self, event):
size = self.size()
painter = QtGui.QPainter(self)
point = QtCore.QPoint(0, 0)
scaledPix = self.pixmap.scaled(
size, Qt.KeepAspectRatio, transformMode=Qt.SmoothTransformation)
# start painting the label from left upper corner
point.setX((size.width() - scaledPix.width())/2)
point.setY((size.height() - scaledPix.height())/2)
painter.drawPixmap(point, scaledPix)
def changePixmap(self, img):
self.pixmap = QtGui.QPixmap(img)
self.repaint()
class MainWindow(QtCore.QObject):
newTask = QtCore.pyqtSignal(list)
processTask = QtCore.pyqtSignal()
videoTask = QtCore.pyqtSignal(str, str, list)
def __init__(self, window):
QtCore.QObject.__init__(self)
# print('main thread id: {}'.format(QtCore.QThread.currentThreadId()))
self.window = window
self.core = core.Core()
self.pages = [] # widgets of component settings
self.lastAutosave = time.time()
# Create data directory, load/create settings
self.dataDir = self.core.dataDir
self.autosavePath = os.path.join(self.dataDir, 'autosave.avp')
self.settings = QSettings(
os.path.join(self.dataDir, 'settings.ini'), QSettings.IniFormat)
LoadDefaultSettings(self)
self.presetManager = PresetManager(
uic.loadUi(
os.path.join(os.path.dirname(os.path.realpath(__file__)),
'presetmanager.ui')),
self)
if not os.path.exists(self.dataDir):
os.makedirs(self.dataDir)
for neededDirectory in (
self.core.presetDir, self.settings.value("projectDir")):
if not os.path.exists(neededDirectory):
os.mkdir(neededDirectory)
# Make queues/timers for the preview thread
self.previewQueue = Queue()
self.previewThread = QtCore.QThread(self)
self.previewWorker = preview_thread.Worker(self, self.previewQueue)
self.previewWorker.moveToThread(self.previewThread)
self.previewWorker.imageCreated.connect(self.showPreviewImage)
self.previewThread.start()
self.timer = QtCore.QTimer(self)
self.timer.timeout.connect(self.processTask.emit)
self.timer.start(500)
# Begin decorating the window and connecting events
componentList = self.window.listWidget_componentList
window.toolButton_selectAudioFile.clicked.connect(
self.openInputFileDialog)
window.toolButton_selectOutputFile.clicked.connect(
self.openOutputFileDialog)
window.progressBar_createVideo.setValue(0)
window.pushButton_createVideo.clicked.connect(
self.createAudioVisualisation)
window.pushButton_Cancel.clicked.connect(self.stopVideo)
window.setWindowTitle("Audio Visualizer")
for i, container in enumerate(self.core.encoder_options['containers']):
window.comboBox_videoContainer.addItem(container['name'])
if container['name'] == self.settings.value('outputContainer'):
selectedContainer = i
window.comboBox_videoContainer.setCurrentIndex(selectedContainer)
window.comboBox_videoContainer.currentIndexChanged.connect(
self.updateCodecs
)
self.updateCodecs()
for i in range(window.comboBox_videoCodec.count()):
codec = window.comboBox_videoCodec.itemText(i)
if codec == self.settings.value('outputVideoCodec'):
window.comboBox_videoCodec.setCurrentIndex(i)
#print(codec)
for i in range(window.comboBox_audioCodec.count()):
codec = window.comboBox_audioCodec.itemText(i)
if codec == self.settings.value('outputAudioCodec'):
window.comboBox_audioCodec.setCurrentIndex(i)
window.comboBox_videoCodec.currentIndexChanged.connect(
self.updateCodecSettings
)
window.comboBox_audioCodec.currentIndexChanged.connect(
self.updateCodecSettings
)
vBitrate = int(self.settings.value('outputVideoBitrate'))
aBitrate = int(self.settings.value('outputAudioBitrate'))
window.spinBox_vBitrate.setValue(vBitrate)
window.spinBox_aBitrate.setValue(aBitrate)
window.spinBox_vBitrate.valueChanged.connect(self.updateCodecSettings)
window.spinBox_aBitrate.valueChanged.connect(self.updateCodecSettings)
self.previewWindow = PreviewWindow(self, os.path.join(
os.path.dirname(os.path.realpath(__file__)), "background.png"))
window.verticalLayout_previewWrapper.addWidget(self.previewWindow)
# Make component buttons
self.compMenu = QMenu()
for i, comp in enumerate(self.core.modules):
action = self.compMenu.addAction(comp.Component.__doc__)
action.triggered[()].connect(
lambda item=i: self.insertComponent(item))
self.window.pushButton_addComponent.setMenu(self.compMenu)
componentList.dropEvent = self.dragComponent
componentList.itemSelectionChanged.connect(
self.changeComponentWidget)
self.window.pushButton_removeComponent.clicked.connect(
lambda _: self.removeComponent())
componentList.setContextMenuPolicy(
QtCore.Qt.CustomContextMenu)
componentList.connect(
componentList,
QtCore.SIGNAL("customContextMenuRequested(QPoint)"),
self.componentContextMenu)
currentRes = str(self.settings.value('outputWidth'))+'x' + \
str(self.settings.value('outputHeight'))
for i, res in enumerate(self.resolutions):
window.comboBox_resolution.addItem(res)
if res == currentRes:
currentRes = i
window.comboBox_resolution.setCurrentIndex(currentRes)
window.comboBox_resolution.currentIndexChanged.connect(
self.updateResolution)
self.window.pushButton_listMoveUp.clicked.connect(
lambda: self.moveComponent(-1)
)
self.window.pushButton_listMoveDown.clicked.connect(
lambda: self.moveComponent(1)
)
# Configure the Projects Menu
self.projectMenu = QMenu()
self.ui_newProject = self.projectMenu.addAction("New Project")
self.ui_newProject.triggered[()].connect(self.createNewProject)
self.ui_openProject = self.projectMenu.addAction("Open Project")
self.ui_openProject.triggered[()].connect(self.openOpenProjectDialog)
action = self.projectMenu.addAction("Save Project")
action.triggered[()].connect(self.saveCurrentProject)
action = self.projectMenu.addAction("Save Project As")
action.triggered[()].connect(self.openSaveProjectDialog)
self.window.pushButton_projects.setMenu(self.projectMenu)
# Configure the Presets Button
self.window.pushButton_presets.clicked.connect(
self.openPresetManager
)
# Show the window and load current project
window.show()
self.currentProject = self.settings.value("currentProject")
if self.autosaveExists():
# delete autosave if it's identical to the project
os.remove(self.autosavePath)
if self.currentProject and os.path.exists(self.autosavePath):
ch = self.showMessage(
msg="Restore unsaved changes in project '%s'?"
% os.path.basename(self.currentProject)[:-4],
showCancel=True)
if ch:
os.remove(self.currentProject)
os.rename(self.autosavePath, self.currentProject)
else:
os.remove(self.autosavePath)
self.openProject(self.currentProject)
self.drawPreview()
def cleanUp(self):
self.timer.stop()
self.previewThread.quit()
self.previewThread.wait()
self.autosave()
@QtCore.pyqtSlot(int, dict)
def updateComponentTitle(self, pos, presetStore=False):
if type(presetStore) == dict:
name = presetStore['preset']
if name == None or name not in self.core.savedPresets:
modified = False
else:
modified = (presetStore != self.core.savedPresets[name])
else:
print(pos, presetStore)
modified = bool(presetStore)
if pos < 0:
pos = len(self.core.selectedComponents)-1
title = str(self.core.selectedComponents[pos])
if self.core.selectedComponents[pos].currentPreset:
title += ' - %s' % self.core.selectedComponents[pos].currentPreset
if modified:
title += '*'
self.window.listWidget_componentList.item(pos).setText(title)
def updateCodecs(self):
containerWidget = self.window.comboBox_videoContainer
vCodecWidget = self.window.comboBox_videoCodec
aCodecWidget = self.window.comboBox_audioCodec
index = containerWidget.currentIndex()
name = containerWidget.itemText(index)
self.settings.setValue('outputContainer', name)
vCodecWidget.clear()
aCodecWidget.clear()
for container in self.core.encoder_options['containers']:
if container['name'] == name:
for vCodec in container['video-codecs']:
vCodecWidget.addItem(vCodec)
for aCodec in container['audio-codecs']:
aCodecWidget.addItem(aCodec)
def updateCodecSettings(self):
vCodecWidget = self.window.comboBox_videoCodec
vBitrateWidget = self.window.spinBox_vBitrate
aBitrateWidget = self.window.spinBox_aBitrate
aCodecWidget = self.window.comboBox_audioCodec
currentVideoCodec = vCodecWidget.currentIndex()
currentVideoCodec = vCodecWidget.itemText(currentVideoCodec)
currentVideoBitrate = vBitrateWidget.value()
currentAudioCodec = aCodecWidget.currentIndex()
currentAudioCodec = aCodecWidget.itemText(currentAudioCodec)
currentAudioBitrate = aBitrateWidget.value()
self.settings.setValue('outputVideoCodec', currentVideoCodec)
self.settings.setValue('outputAudioCodec', currentAudioCodec)
self.settings.setValue('outputVideoBitrate', currentVideoBitrate)
self.settings.setValue('outputAudioBitrate', currentAudioBitrate)
def autosave(self):
if not self.currentProject:
if os.path.exists(self.autosavePath):
os.remove(self.autosavePath)
elif time.time() - self.lastAutosave >= 2.0:
self.core.createProjectFile(self.autosavePath)
self.lastAutosave = time.time()
def autosaveExists(self):
if self.currentProject and os.path.exists(self.autosavePath) \
and filecmp.cmp(self.autosavePath, self.currentProject):
return True
else:
return False
def openInputFileDialog(self):
inputDir = self.settings.value("inputDir", expanduser("~"))
fileName = QtGui.QFileDialog.getOpenFileName(
self.window, "Open Music File",
inputDir, "Music Files (%s)" % " ".join(self.core.audioFormats))
if not fileName == "":
self.settings.setValue("inputDir", os.path.dirname(fileName))
self.window.lineEdit_audioFile.setText(fileName)
def openOutputFileDialog(self):
outputDir = self.settings.value("outputDir", expanduser("~"))
fileName = QtGui.QFileDialog.getSaveFileName(
self.window, "Set Output Video File",
outputDir,
"Video Files (%s);; All Files (*)" % " ".join(self.core.videoFormats))
if not fileName == "":
self.settings.setValue("outputDir", os.path.dirname(fileName))
self.window.lineEdit_outputFile.setText(fileName)
def stopVideo(self):
print('stop')
self.videoWorker.cancel()
self.canceled = True
def createAudioVisualisation(self):
# create output video if mandatory settings are filled in
if self.window.lineEdit_audioFile.text() and \
self.window.lineEdit_outputFile.text():
self.canceled = False
self.progressBarUpdated(-1)
ffmpeg_cmd = self.settings.value("ffmpeg_cmd", expanduser("~"))
self.videoThread = QtCore.QThread(self)
self.videoWorker = video_thread.Worker(self)
self.videoWorker.moveToThread(self.videoThread)
self.videoWorker.videoCreated.connect(self.videoCreated)
self.videoWorker.progressBarUpdate.connect(self.progressBarUpdated)
self.videoWorker.progressBarSetText.connect(
self.progressBarSetText)
self.videoWorker.imageCreated.connect(self.showPreviewImage)
self.videoWorker.encoding.connect(self.changeEncodingStatus)
self.videoThread.start()
self.videoTask.emit(
self.window.lineEdit_audioFile.text(),
self.window.lineEdit_outputFile.text(),
self.core.selectedComponents)
else:
self.showMessage(
msg="You must select an audio file and output filename.")
def changeEncodingStatus(self, status):
if status:
self.window.pushButton_createVideo.setEnabled(False)
self.window.pushButton_Cancel.setEnabled(True)
self.window.comboBox_resolution.setEnabled(False)
self.window.stackedWidget.setEnabled(False)
self.window.tab_encoderSettings.setEnabled(False)
self.window.label_audioFile.setEnabled(False)
self.window.toolButton_selectAudioFile.setEnabled(False)
self.window.label_outputFile.setEnabled(False)
self.window.toolButton_selectOutputFile.setEnabled(False)
self.window.lineEdit_audioFile.setEnabled(False)
self.window.lineEdit_outputFile.setEnabled(False)
self.window.pushButton_addComponent.setEnabled(False)
self.window.pushButton_removeComponent.setEnabled(False)
self.window.pushButton_listMoveDown.setEnabled(False)
self.window.pushButton_listMoveUp.setEnabled(False)
self.window.listWidget_componentList.setEnabled(False)
self.ui_newProject.setEnabled(False)
self.ui_openProject.setEnabled(False)
else:
self.window.pushButton_createVideo.setEnabled(True)
self.window.pushButton_Cancel.setEnabled(False)
self.window.comboBox_resolution.setEnabled(True)
self.window.stackedWidget.setEnabled(True)
self.window.tab_encoderSettings.setEnabled(True)
self.window.label_audioFile.setEnabled(True)
self.window.toolButton_selectAudioFile.setEnabled(True)
self.window.lineEdit_audioFile.setEnabled(True)
self.window.label_outputFile.setEnabled(True)
self.window.toolButton_selectOutputFile.setEnabled(True)
self.window.lineEdit_outputFile.setEnabled(True)
self.window.pushButton_addComponent.setEnabled(True)
self.window.pushButton_removeComponent.setEnabled(True)
self.window.pushButton_listMoveDown.setEnabled(True)
self.window.pushButton_listMoveUp.setEnabled(True)
self.window.listWidget_componentList.setEnabled(True)
self.ui_newProject.setEnabled(True)
self.ui_openProject.setEnabled(True)
def progressBarUpdated(self, value):
self.window.progressBar_createVideo.setValue(value)
def progressBarSetText(self, value):
self.window.progressBar_createVideo.setFormat(value)
def videoCreated(self):
self.videoThread.quit()
self.videoThread.wait()
def updateResolution(self):
resIndex = int(self.window.comboBox_resolution.currentIndex())
res = self.resolutions[resIndex].split('x')
self.settings.setValue('outputWidth', res[0])
self.settings.setValue('outputHeight', res[1])
self.drawPreview()
def drawPreview(self):
self.newTask.emit(self.core.selectedComponents)
# self.processTask.emit()
self.autosave()
def showPreviewImage(self, image):
self.previewWindow.changePixmap(image)
def insertComponent(self, moduleIndex, compPos=0):
componentList = self.window.listWidget_componentList
stackedWidget = self.window.stackedWidget
if compPos < 0:
compPos = componentList.count()
index = self.core.insertComponent(
compPos, moduleIndex)
row = componentList.insertItem(
index,
self.core.selectedComponents[index].__doc__)
componentList.setCurrentRow(index)
# connect to signal that adds an asterisk when modified
self.core.selectedComponents[index].modified.connect(
self.updateComponentTitle)
self.pages.insert(index, self.core.selectedComponents[index].widget(self))
stackedWidget.insertWidget(index, self.pages[index])
stackedWidget.setCurrentIndex(index)
self.core.updateComponent(index)
def removeComponent(self):
componentList = self.window.listWidget_componentList
for selected in componentList.selectedItems():
index = componentList.row(selected)
self.window.stackedWidget.removeWidget(self.pages[index])
componentList.takeItem(index)
self.core.removeComponent(index)
self.pages.pop(index)
self.changeComponentWidget()
self.drawPreview()
def moveComponent(self, change):
'''Moves a component relatively from its current position'''
componentList = self.window.listWidget_componentList
stackedWidget = self.window.stackedWidget
row = componentList.currentRow()
newRow = row + change
if newRow > -1 and newRow < componentList.count():
self.core.moveComponent(row, newRow)
# update widgets
page = self.pages.pop(row)
self.pages.insert(newRow, page)
item = componentList.takeItem(row)
newItem = componentList.insertItem(newRow, item)
widget = stackedWidget.removeWidget(page)
stackedWidget.insertWidget(newRow, page)
componentList.setCurrentRow(newRow)
stackedWidget.setCurrentIndex(newRow)
self.drawPreview()
def dragComponent(self, event):
'''Drop event for the component listwidget'''
componentList = self.window.listWidget_componentList
modelIndexes = [ \
componentList.model().index(i) \
for i in range(componentList.count()) \
]
rects = [ \
componentList.visualRect(modelIndex) \
for modelIndex in modelIndexes \
]
rowPos = [rect.contains(event.pos()) for rect in rects]
if not any(rowPos):
return
i = rowPos.index(True)
change = (componentList.currentRow() - i) * -1
self.moveComponent(change)
def changeComponentWidget(self):
selected = self.window.listWidget_componentList.selectedItems()
if selected:
index = self.window.listWidget_componentList.row(selected[0])
self.window.stackedWidget.setCurrentIndex(index)
def openPresetManager(self):
'''Preset manager for importing, exporting, renaming, deleting'''
self.presetManager.show()
def clear(self):
'''Get a blank slate'''
self.core.selectedComponents = []
self.window.listWidget_componentList.clear()
for widget in self.pages:
self.window.stackedWidget.removeWidget(widget)
self.pages = []
def createNewProject(self):
if self.autosaveExists():
ch = self.showMessage(
msg="You have unsaved changes in project '%s'. "
"Save before starting a new project?"
% os.path.basename(self.currentProject)[:-4],
showCancel=True)
if ch:
self.saveCurrentProject()
self.clear()
self.currentProject = None
self.settings.setValue("currentProject", None)
self.drawPreview()
def saveCurrentProject(self):
if self.currentProject:
self.core.createProjectFile(self.currentProject)
else:
self.openSaveProjectDialog()
def openSaveProjectDialog(self):
filename = QtGui.QFileDialog.getSaveFileName(
self.window, "Create Project File",
self.settings.value("projectDir"),
"Project Files (*.avp)")
if not filename:
return
if not filename.endswith(".avp"):
filename += '.avp'
self.settings.setValue("projectDir", os.path.dirname(filename))
self.settings.setValue("currentProject", filename)
self.currentProject = filename
self.core.createProjectFile(filename)
def openOpenProjectDialog(self):
filename = QtGui.QFileDialog.getOpenFileName(
self.window, "Open Project File",
self.settings.value("projectDir"),
"Project Files (*.avp)")
self.openProject(filename)
def openProject(self, filepath):
if not filepath or not os.path.exists(filepath) \
or not filepath.endswith('.avp'):
return
self.clear()
self.currentProject = filepath
self.settings.setValue("currentProject", filepath)
self.settings.setValue("projectDir", os.path.dirname(filepath))
# actually load the project using core method
self.core.openProject(self, filepath)
def showMessage(self, **kwargs):
parent = kwargs['parent'] if 'parent' in kwargs else self.window
msg = QtGui.QMessageBox(parent)
msg.setModal(True)
msg.setText(kwargs['msg'])
msg.setIcon(
kwargs['icon'] if 'icon' in kwargs else QtGui.QMessageBox.Information)
msg.setDetailedText(kwargs['detail'] if 'detail' in kwargs else None)
if 'showCancel'in kwargs and kwargs['showCancel']:
msg.setStandardButtons(
QtGui.QMessageBox.Ok | QtGui.QMessageBox.Cancel)
else:
msg.setStandardButtons(QtGui.QMessageBox.Ok)
ch = msg.exec_()
if ch == 1024:
return True
return False
def componentContextMenu(self, QPos):
'''Appears when right-clicking a component in the list'''
componentList = self.window.listWidget_componentList
if not componentList.selectedItems():
return
# don't show menu if clicking empty space
parentPosition = componentList.mapToGlobal(QtCore.QPoint(0, 0))
index = componentList.currentRow()
modelIndex = componentList.model().index(index)
if not componentList.visualRect(modelIndex).contains(QPos):
return
self.presetManager.findPresets()
self.menu = QtGui.QMenu()
menuItem = self.menu.addAction("Save Preset")
menuItem.triggered.connect(
self.presetManager.openSavePresetDialog
)
# submenu for opening presets
try:
presets = self.presetManager.presets[str(self.core.selectedComponents[index])]
self.submenu = QtGui.QMenu("Open Preset")
self.menu.addMenu(self.submenu)
for version, presetName in presets:
menuItem = self.submenu.addAction(presetName)
menuItem.triggered.connect(
lambda _, presetName=presetName:
self.presetManager.openPreset(presetName)
)
except KeyError:
pass
if self.core.selectedComponents[index].currentPreset:
menuItem = self.menu.addAction("Clear Preset")
menuItem.triggered.connect(
self.presetManager.clearPreset
)
self.menu.move(parentPosition + QPos)
self.menu.show()