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| #!/usr/bin/env python
from pathlib import PurePath
from textwrap import dedent
import sys
try:
from PySide6.QtWidgets import (
QApplication, QMainWindow, QDialogButtonBox,
QGroupBox, QLineEdit, QFormLayout,
QDataWidgetMapper, QVBoxLayout, QHBoxLayout,
QWidget, QComboBox
)
from PySide6.QtGui import QStandardItemModel, QIcon
from PySide6.QtCore import Qt, QObject, Signal, QModelIndex, QCoreApplication, QLibraryInfo, QTranslator
except ImportError:
print("ERREUR: installez pyside 6 !")
exit(13)
"""
https://specifications.freedesktop.org/desktop-entry-spec/desktop-entry-spec-latest.html#recognized-keys
"""
TEMPLATE = {
"exec" : {
"msg": "Le fichier à exécuter",
"type": 1
},
"name" : {
"msg": "",
"type": 1
},
"icon": {
"msg": "Fichier .png ou nom d'une icone dans notre thème",
"type": 1
},
"comment": {
"msg": "",
"type": 1
},
"type" : {
"msg": ("Application","Link","Directory"),
"type": 2
},
"path" : {
"msg": "",
"type": 1
},
"categories" : {
"msg": ["Development","System", "Utility"],
"type": 3
},
}
"""
voir la fonction test() pour l'écrire/mini test de cette classe (app -t)
"""
class Work(QObject):
onchange = Signal(int, str) # pour GUI refresh
def __init__(self) -> None:
super().__init__()
self.error = ""
self._exec = ""
self.type = ""
self.name = ""
self.comment = ""
self._icon = ""
self.path = ""
self.categories = []
self.type = "Application"
@property
def exec(self):
return self._exec
@exec.setter
def exec(self, value):
self.error = ""
self._exec = value
path = None
if not self.name:
path = PurePath(self.exec)
self.name = path.stem
self.onchange.emit(self.key_to_int("name"), "name")
if not self.icon and self.name:
self.icon = self.name
@property
def icon(self):
return self._icon
@icon.setter
def icon(self, value):
self.error = ""
if value:
ico = QIcon.fromTheme(value)
if ico.isNull():
self.error = "icone non trouvée dans le theme courant"
return
self._icon = value
self.onchange.emit(self.key_to_int("icon"), "icon")
def __str__(self) -> str:
return dedent(
f"""
[Desktop Entry]
Type={self.type}
Name={self.name}
Comment={self.comment}
Exec={self.exec}
Icon={self.icon}
# erreur: {self.error}
"""
)
@staticmethod
def key_to_int(key):
return list(TEMPLATE.keys()).index(key)
class FormModel(QStandardItemModel):
""" interface QT liée a mon métier """
cols = tuple(k for k in TEMPLATE)
error = Signal(str)
def __init__(self, parent):
super().__init__(1, len(TEMPLATE), parent=parent)
self._datas = Work()
self._datas.onchange.connect(self.onUpdate)
def data(self , index , role):
if not index.isValid():
return
if role in (Qt.EditRole, Qt.DisplayRole):
""" texte par défaut à l'édition """
key = self.cols[index.column()]
return getattr(self._datas, key)
if role == Qt.UserRole:
return self.cols[index.column()]
return super().data(index, role)
def setData(self, index, value, role) -> bool:
if not index.isValid():
return
if role == Qt.EditRole:
self._datas.error = "" #puisque un seul setter existe dans la classe Work
key = self.cols[index.column()]
setattr(self._datas, key, value)
self.error.emit(self._datas.error if self._datas.error else "")
return True
return False
def onUpdate(self, col, key):
self.beginResetModel()
index = self.index(0, col, QModelIndex())
self.dataChanged.emit(index, index, Qt.DisplayRole)
self.endResetModel()
class MainWin(QMainWindow):
""" fenetre principale """
def __init__(self):
super().__init__()
self.resize(790, 50)
self.setWindowTitle("model Qt lié a model classique python")
self.edits = {}
for key in TEMPLATE.keys():
if TEMPLATE[key]["type"] != 2:
self.edits[key] = QLineEdit()
else:
self.edits[key] = QComboBox()
self.edits[key].addItems(TEMPLATE[key]["msg"])
self.edits[key].setPlaceholderText(str(TEMPLATE[key]["msg"]))
btnWidget = QWidget()
layout = QHBoxLayout()
savetBtn = QDialogButtonBox(QDialogButtonBox.StandardButton.Save)
exitBtn = QDialogButtonBox(QDialogButtonBox.StandardButton.Close)
savetBtn.clicked.connect(self.save_file)
exitBtn.clicked.connect(self.close)
layout.addWidget(savetBtn, stretch=1, alignment=Qt.AlignmentFlag.AlignRight)
layout.addWidget(exitBtn)
btnWidget.setLayout(layout)
self.formGroupBox = QGroupBox("Données")
self.form = QFormLayout()
for key in TEMPLATE.keys():
self.form.addRow(
f"{key.capitalize()} :",
self.edits[key]
)
self.formGroupBox.setLayout(self.form)
mainLayout = QVBoxLayout()
mainLayout.addWidget(self.formGroupBox)
mainLayout.addWidget(btnWidget)
widget = QWidget()
widget.setLayout(mainLayout)
self.setCentralWidget(widget)
self.statusBar()
self._setupModel()
def _setupModel(self):
self.model = FormModel(self)
self.model.error.connect(self.onError)
self.model.dataChanged.connect(self.onDataChanged)
self.mapper = QDataWidgetMapper()
self.mapper.setModel(self.model)
self.model.modelReset.connect(self.mapper.toFirst)
for i, key in enumerate(TEMPLATE.keys()):
self.mapper.addMapping(self.edits[key], i)
self.mapper.toFirst()
def onError(self, msg):
self.statusBar().showMessage(msg)
def onDataChanged(self, item, _):
print("maj de", item.data(Qt.UserRole))
if item.column() == 2:
ico = item.data(Qt.DisplayRole)
if ico:
QApplication.setWindowIcon(QIcon.fromTheme(item.data(Qt.DisplayRole)))
def save_file(self):
print(self.model._datas)
app = None
def run():
"""gui"""
app = QApplication(sys.argv)
app.setWindowIcon(QIcon.fromTheme("desktop"))
trans = QTranslator()
trans.load('qt_fr', QLibraryInfo.path(QLibraryInfo.LibraryPath.TranslationsPath))
QCoreApplication.installTranslator(trans) # dialogues/btn en fr
win = MainWin()
win.show()
sys.exit(app.exec())
def test():
""" si on ne travaille que sur la classe métier """
work = Work()
work.exec = "pacman"
print(work)
work.exec = "/usr/bin/pacman.sh"
print(work)
exit(0)
if __name__ == "__main__":
if "-t" in sys.argv:
test()
run() |
