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from PyQt4 import QtGui
from collections import OrderedDict
import string
import os
import core
class PresetManager(QtGui.QDialog):
def __init__(self, window, parent):
super().__init__()
self.parent = parent
self.core = self.parent.core
self.presetDir = self.core.presetDir
self.window = window
self.findPresets()
self.lastFilter = '*'
# create filter box and preset list
self.drawFilterList()
self.window.comboBox_filter.currentIndexChanged.connect(
lambda: self.drawPresetList(self.window.comboBox_filter.currentText())
)
self.drawPresetList('*')
# make auto-completion for search bar
self.autocomplete = QtGui.QStringListModel()
completer = QtGui.QCompleter()
completer.setModel(self.autocomplete)
self.window.lineEdit_search.setCompleter(completer)
def show(self):
presetNames = []
for presetList in self.presets.values():
for preset in presetList:
presetNames.append(preset[1])
self.autocomplete.setStringList(presetNames)
self.findPresets()
self.drawFilterList()
self.drawPresetList('*')
self.window.show()
def findPresets(self):
parseList = []
for dirpath, dirnames, filenames in os.walk(self.presetDir):
# anything without a subdirectory must be a preset folder
if dirnames:
continue
for preset in filenames:
compName = os.path.basename(os.path.dirname(dirpath))
compVers = os.path.basename(dirpath)
try:
parseList.append((compName, int(compVers), preset))
except ValueError:
continue
self.presets =\
{
compName : \
[
(vers, preset) \
for name, vers, preset in parseList \
if name == compName \
] \
for compName, _, __ in parseList \
}
def drawPresetList(self, filter=None):
self.window.listWidget_presets.clear()
if filter:
self.lastFilter = str(filter)
else:
filter = str(self.lastFilter)
for component, presets in self.presets.items():
if filter != '*' and component != filter:
continue
for vers, preset in presets:
self.window.listWidget_presets.addItem('%s: %s' % (component, preset))
def drawFilterList(self):
self.window.comboBox_filter.clear()
self.window.comboBox_filter.addItem('*')
for component in self.presets:
self.window.comboBox_filter.addItem(component)
def openSavePresetDialog(self):
window = self.parent.window
self.selectedComponents = self.parent.core.selectedComponents
componentList = window.listWidget_componentList
if componentList.currentRow() == -1:
return
while True:
index = componentList.currentRow()
currentPreset = self.selectedComponents[index].currentPreset
newName, OK = QtGui.QInputDialog.getText(
self.parent.window,
'Audio Visualizer',
'New Preset Name:',
QtGui.QLineEdit.Normal,
currentPreset
)
if OK:
badName = False
for letter in newName:
if letter in string.punctuation:
badName = True
if badName:
# some filesystems don't like bizarre characters
self.parent.showMessage(
msg='Preset names must contain only letters,'
'numbers, and spaces.')
continue
if newName:
if index != -1:
saveValueStore = \
self.selectedComponents[index].savePreset()
componentName = str(self.selectedComponents[index]).strip()
vers = self.selectedComponents[index].version()
self.createPresetFile(
componentName, vers, saveValueStore, newName)
self.selectedComponents[index].currentPreset = newName
break
def createPresetFile(self, compName, vers, saveValueStore, filename):
path = os.path.join(self.presetDir, compName, str(vers), filename)
if os.path.exists(path):
ch = self.parent.showMessage(
msg="%s already exists! Overwrite it?" % filename,
showCancel=True, icon=QtGui.QMessageBox.Warning)
if not ch:
return
self.core.createPresetFile(compName, vers, saveValueStore, filename)
self.drawPresetList()
def openPreset(self, presetName):
componentList = self.parent.window.listWidget_componentList
selectedComponents = self.parent.core.selectedComponents
index = componentList.currentRow()
if index == -1:
return
componentName = str(selectedComponents[index]).strip()
version = selectedComponents[index].version()
dirname = os.path.join(self.presetDir, componentName, str(version))
filepath = os.path.join(dirname, presetName)
if not os.path.exists(filepath):
return
with open(filepath, 'r') as f:
for line in f:
saveValueStore = dict(eval(line.strip()))
break
selectedComponents[index].loadPreset(
saveValueStore,
presetName
)
self.parent.updateComponentTitle(index)
self.parent.drawPreview()
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