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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__(parent.window)
self.parent = parent
self.core = self.parent.core
self.presetDir = self.core.presetDir
self.window = window
self.findPresets()
self.lastFilter = '*'
self.presetRows = [] # list of (comp, vers, name) tuples
# connect button signals
self.window.pushButton_delete.clicked.connect(self.openDeletePresetDialog)
self.window.pushButton_rename.clicked.connect(self.openRenamePresetDialog)
self.window.pushButton_close.clicked.connect(self.close)
# create filter box and preset list
self.drawFilterList()
self.window.comboBox_filter.currentIndexChanged.connect(
lambda: self.drawPresetList(
self.window.comboBox_filter.currentText(), self.window.lineEdit_search.text()
)
)
# make auto-completion for search bar
self.autocomplete = QtGui.QStringListModel()
completer = QtGui.QCompleter()
completer.setModel(self.autocomplete)
self.window.lineEdit_search.setCompleter(completer)
self.window.lineEdit_search.textChanged.connect(
lambda: self.drawPresetList(
self.window.comboBox_filter.currentText(), self.window.lineEdit_search.text()
)
)
self.drawPresetList('*')
def show(self):
'''Open a new preset manager window from the mainwindow'''
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, compFilter=None, presetFilter=''):
self.window.listWidget_presets.clear()
if compFilter:
self.lastFilter = str(compFilter)
else:
compFilter = str(self.lastFilter)
self.presetRows = []
presetNames = []
for component, presets in self.presets.items():
if compFilter != '*' and component != compFilter:
continue
for vers, preset in presets:
if not presetFilter or presetFilter in preset:
self.window.listWidget_presets.addItem('%s: %s' % (component, preset))
self.presetRows.append((component, vers, preset))
presetNames.append(preset)
self.autocomplete.setStringList(presetNames)
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):
'''Functions on mainwindow level from the context menu'''
window = self.parent.window
self.selectedComponents = self.parent.core.selectedComponents
componentList = self.parent.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:
if core.Core.badName(newName):
self.warnMessage()
continue
if newName:
if index != -1:
saveValueStore = \
self.selectedComponents[index].savePreset()
componentName = str(self.selectedComponents[index]).strip()
vers = self.selectedComponents[index].version()
self.createNewPreset(
componentName, vers, saveValueStore, newName)
self.selectedComponents[index].currentPreset = newName
self.findPresets()
self.drawPresetList()
break
def createNewPreset(self, compName, vers, saveValueStore, filename):
path = os.path.join(self.presetDir, compName, str(vers), filename)
if self.presetExists(path):
return
self.core.createPresetFile(compName, vers, saveValueStore, filename)
def presetExists(self, path):
if os.path.exists(path):
ch = self.parent.showMessage(
msg="%s already exists! Overwrite it?" %
os.path.basename(path),
showCancel=True, icon=QtGui.QMessageBox.Warning)
if not ch:
# user clicked cancel
return True
return False
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()
def openDeletePresetDialog(self):
selected = self.window.listWidget_presets.selectedItems()
if not selected:
return
row = self.window.listWidget_presets.row(selected[0])
comp, vers, name = self.presetRows[row]
ch = self.parent.showMessage(
msg='Really delete %s?' % name,
showCancel=True, icon=QtGui.QMessageBox.Warning
)
if not ch:
return
self.deletePreset(comp, vers, name)
self.findPresets()
self.drawPresetList()
def deletePreset(self, comp, vers, name):
filepath = os.path.join(self.presetDir, comp, str(vers), name)
os.remove(filepath)
def warnMessage(self):
self.parent.showMessage(
msg='Preset names must contain only letters, '
'numbers, and spaces.')
def openRenamePresetDialog(self):
presetList = self.window.listWidget_presets
if presetList.currentRow() == -1:
return
while True:
index = presetList.currentRow()
newName, OK = QtGui.QInputDialog.getText(
self.window,
'Preset Manager',
'Rename Preset:',
QtGui.QLineEdit.Normal,
self.presetRows[index][2]
)
if OK:
if core.Core.badName(newName):
self.warnMessage()
continue
if newName:
comp, vers, oldName = self.presetRows[index]
path = os.path.join(
self.presetDir, comp, str(vers))
newPath = os.path.join(path, newName)
oldPath = os.path.join(path, oldName)
if self.presetExists(newPath):
return
if os.path.exists(newPath):
os.remove(newPath)
os.rename(oldPath, newPath)
self.findPresets()
self.drawPresetList()
break
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