MVCサンプル
ここの動画をお勧めします。ソースもついています。
PyQt4で書かれていますが、PyQt5に書き換えるのは難しくありません。
youTubeで「PyQt4 Model View Tutorial Part」と打ち込む事で動画がリストされます。
ここを参考にこれを作ってみました。
MyTableModel.py
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.Qt import *
import sys
class MyTableModel(QAbstractTableModel):
def __init__(self, list, headers = [], parent = None):
QAbstractTableModel.__init__(self, parent)
self.list = list
self.headers = headers
def rowCount(self, parent):
return len(self.list)
def columnCount(self, parent):
return len(self.list[0])
def flags(self, index):
return Qt.ItemIsEditable | Qt.ItemIsEnabled | Qt.ItemIsSelectable
def data(self, index, role):
if role == Qt.EditRole:
row = index.row()
column = index.column()
return self.list[row][column]
if role == Qt.DisplayRole:
row = index.row()
column = index.column()
value = self.list[row][column]
return value
def setData(self, index, value, role = Qt.EditRole):
if role == Qt.EditRole:
row = index.row()
column = index.column()
self.list[row][column] = value
self.dataChanged.emit(index, index)
return True
return False
def headerData(self, section, orientation, role):
if role == Qt.DisplayRole:
if orientation == Qt.Horizontal:
if section < len(self.headers):
return self.headers[section]
else:
return "not implemented"
else:
return "item %d" % section
if __name__ == '__main__':
app = QApplication(sys.argv)
app.setStyle("plastique")
listView = QListView()
listView.show()
comboBox = QComboBox()
comboBox.show()
tableView = QTableView()
tableView.show()
headers = ["000", "001", "002"]
tableData0 = [
['abc',100,200],
['fff',130,260],
['jjj',190,300],
['ppp',700,500],
['yyy',800,900]
]
model = MyTableModel(tableData0, headers)
listView.setModel(model)
comboBox.setModel(model)
tableView.setModel(model)
sys.exit(app.exec_())
書き換えも可能です。
数値のところはデフォルトのDelegateが働いてスピンボックスになっています。
ComboBoxのDelegate
ComboDelegate.py
import sys
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
class ComboDelegate(QItemDelegate):
comboItems=['コンボ--0', 'コンボ--1','コンボ--2']
def createEditor(self, parent, option, proxyModelIndex):
combo = QComboBox(parent)
combo.addItems(self.comboItems)
combo.currentIndexChanged.connect(self.currentIndexChanged)
return combo
def setModelData(self, combo, model, index):
comboIndex=combo.currentIndex()
text=self.comboItems[comboIndex]
model.setData(index, text)
@pyqtSlot()
def currentIndexChanged(self):
self.commitData.emit(self.sender())
class MyModel(QAbstractTableModel):
def __init__(self, parent=None, *args):
QAbstractTableModel.__init__(self, parent, *args)
self.items=['Item01','Item02','Item03']
def rowCount(self, parent=QModelIndex()):
return len(self.items)
def columnCount(self, parent=QModelIndex()):
return 1
def data(self, index, role):
if not index.isValid(): return QVariant()
row=index.row()
item=self.items[row]
if row>len(self.items): return QVariant()
if role == Qt.DisplayRole:
return QVariant(item)
def flags(self, index):
return Qt.ItemIsEditable | Qt.ItemIsEnabled
def setData(self, index, text):
self.items[index.row()]=text
if __name__ == '__main__':
app = QApplication(sys.argv)
model = MyModel()
tableView = QTableView()
tableView.setModel(model)
delegate = ComboDelegate()
tableView.setItemDelegate(delegate)
tableView.resizeRowsToContents()
tableView.show()
sys.exit(app.exec_())
table model viewで新規作成、オープン、保存、行追加、行削除を実装してみた
保存はcsv形式です。
行の挿入は選択した行セルの上の行に追加します。
何も選択なしにボタンを押した場合は最終行の後に追加します。
削除は、基本選択した行、何も選択なしにボタンを押した場合は最終行を削除します。
とりあえずはサンプル提示で、解説は追ってしていきます。
View_TableModel.py
from PyQt5.QtGui import *
from PyQt5.Qt import *
import sys, csv
class Window (QWidget):
def __init__ (self):
QWidget.__init__(self, None)
self.setWindowTitle('Table')
class View (Window):
def __init__ (self, parent=None):
super(View, self).__init__()
#サイズ固定
self.setFixedSize(850, 500)
#Viewを作成
self.tableView = QTableView()
self.tableView.clicked.connect(self.viewClicked)
#Viewの罫をブラックにする
self.tableView.setStyleSheet("QTableView{gridline-color: black}")
self.headers = ["▽", "AAAAAA", "BBBBBB", "CCCCCCC", "DDDDD", "EEEEE", "FFFFF", "GGGGG"]
tableData0 = [
[QCheckBox(''), "ああああああ", "てすと", "ﾃｽﾄ", "評価", "000000", "000000", 1],
]
#モデルを作成
self.model = MyTableModel(tableData0, self.headers)
self.tableView.setModel(self.model)
#Insert、remove用の選択行に行の最大値をセット
self.selectRow = self.model.rowCount(QModelIndex())
#csv用のファイルフィルタをセット
self.filters = "CSV files (*.csv)"
#ファイル名を初期化
self.fileName = None
#ボタン作成
self.buttonNew = QPushButton('NEW', self)
self.buttonOpen = QPushButton('Open', self)
self.buttonSave = QPushButton('Save', self)
self.buttonAdd = QPushButton('add', self)
self.buttonDell = QPushButton('Dell', self)
#ボタングループをセット
self.group = QButtonGroup()
self.group.addButton(self.buttonNew)
self.group.addButton(self.buttonOpen)
self.group.addButton(self.buttonSave)
self.group.addButton(self.buttonAdd)
self.group.addButton(self.buttonDell)
#Signal、Slotを設定
self.buttonNew.clicked.connect(self.handleNew)
self.buttonOpen.clicked.connect(self.handleOpen)
self.buttonSave.clicked.connect(self.handleSave)
self.buttonAdd.clicked.connect(self.insertRows)
self.buttonDell.clicked.connect(self.removeRows)
#水平レイアウトを設定
layout = QHBoxLayout()
layout.addWidget(self.buttonNew)
layout.addWidget(self.buttonOpen)
layout.addWidget(self.buttonSave)
layout.addWidget(self.buttonAdd)
layout.addWidget(self.buttonDell)
#垂直レイアウトを設定
Vlayout = QVBoxLayout()
Vlayout.addWidget(self.tableView)
Vlayout.addLayout(layout)
#全体のレイアウトをセット
self.setLayout(Vlayout)
#保存処理→CSVで保存
def handleSave(self):
print("handleSave")
if self.fileName == None or self.fileName == '':
self.fileName, self.filters = QFileDialog.getSaveFileName(self, \
filter=self.filters)
if(self.fileName != ''):
with open(self.fileName, 'wt') as stream:
csvout = csv.writer(stream, lineterminator='\n')
csvout.writerow(self.headers)
for row in range(self.model.rowCount(QModelIndex())):
print(self.model.rowCount(QModelIndex()))
rowdata = []
for column in range(self.model.columnCount(QModelIndex())):
item = self.model.index( row, column, QModelIndex() ).data( Qt.DisplayRole )
if column == 0:
rowdata.append('')
continue
if item is not None:
rowdata.append(item)
else:
rowdata.append('')
csvout.writerow(rowdata)
print(rowdata)
#ファイルオープン処理
def handleOpen(self):
print("handleOpen")
self.fileName, self.filterName = QFileDialog.getOpenFileName(self)
if self.fileName != '':
with open(self.fileName, 'r') as f:
reader = csv.reader(f)
header = next(reader)
buf = []
for row in reader:
row[0] = QCheckBox("-")
buf.append(row)
self.model = None
self.model = MyTableModel(buf, self.headers)
self.tableView.setModel(self.model)
self.fileName = ''
#新規作成
def handleNew(self):
print ("handleNew")
self.fileName = ''
defaultValue =[
[QCheckBox(''), "ああああああ", "てすと", "ﾃｽﾄ", "評価", "000000", "000000", 1]
]
self.model = None
self.model = MyTableModel(defaultValue, self.headers)
print(defaultValue)
self.tableView.setModel(self.model)
#Viewとモデルに行追加→選択されている行の上に1行挿入します
def insertRows(self, position, rows=1, index=QModelIndex()):
print("position: %d"%position)
print("rows: %d" % rows)
print("rowCount: %d" % self.model.rowCount(QModelIndex()))
position = self.selectRow
self.model.beginInsertRows(QModelIndex(), position, position + rows - 1)
for row in range(rows):
self.model.list.insert(position, [QCheckBox(''), "ああああああ", "てすと", "ﾃｽﾄ", "評価", "000000", "000000", 1])
self.model.endInsertRows()
return True
#Viewとモデルから行削除→選択位置の行を削除します
def removeRows(self, position, rows=1, index=QModelIndex()):
print("Removing at position: %s"%position)
position = self.selectRow
self.model.beginRemoveRows(QModelIndex(), position, position + rows - 1)
self.model.list = self.model.list[:position] + self.model.list[position + rows:]
self.model.endRemoveRows()
return True
#Viewをクリックしたときの行の位置を取得
def viewClicked(self, indexClicked):
print('indexClicked() row: %s column: %s'%(indexClicked.row(), indexClicked.column() ))
self.selectRow = indexClicked.row()
class MyTableModel(QAbstractTableModel):
def __init__(self, list, headers = [], parent = None):
QAbstractTableModel.__init__(self, parent)
self.list = list
self.headers = headers
def rowCount(self, parent):
return len(self.list)
def columnCount(self, parent):
return len(self.list[0])
def flags(self, index):
row = index.row()
column = index.column()
if column == 0:
return Qt.ItemIsUserCheckable | Qt.ItemIsEnabled
else:
return Qt.ItemIsEditable | Qt.ItemIsEnabled | Qt.ItemIsSelectable
def data(self, index, role):
row = index.row()
column = index.column()
if role == Qt.EditRole:
return self.list[row][column]
if role == Qt.CheckStateRole and column == 0:
if self.list[row][column].isChecked():
return QVariant(Qt.Checked)
else:
return QVariant(Qt.Unchecked)
""" CheckBoxのテキストを表示させたい場合
#if role == Qt.DisplayRole and column == 0:
#return self.list[row][column].text()
"""
if role == Qt.DisplayRole:
row = index.row()
column = index.column()
value = self.list[row][column]
return value
def setData(self, index, value, role = Qt.EditRole):
row = index.row()
column = index.column()
if role == Qt.EditRole:
self.list[row][column] = value
self.dataChanged.emit(index, index)
return True
if role == Qt.CheckStateRole and column == 0:
self.list[row][column] = QCheckBox('')
if value == Qt.Checked:
self.list[row][column].setChecked(True)
else:
self.list[row][column].setChecked(False)
self.dataChanged.emit(index, index)
return True
return False
def headerData(self, section, orientation, role):
if role == Qt.DisplayRole:
if orientation == Qt.Horizontal:
if section < len(self.headers):
return self.headers[section]
else:
return "not implemented"
else:
return "%d" % (section + 1)
if __name__ == '__main__':
app = QApplication(sys.argv)
table = View()
table.show()
app.exec_()
はじめの部分はこれでも動きます。
View_TableModel.py
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.Qt import *
import sys, csv
"""
class Window (QWidget):
def __init__ (self):
QWidget.__init__(self, None)
self.setWindowTitle('Table')
"""
class View (QWidget):
def __init__ (self, parent=None):
super(View, self).__init__()
#サイズ固定
self.setFixedSize(850, 500)
:
: