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112 lines
3.6 KiB
Python
112 lines
3.6 KiB
Python
# -*- coding: utf-8 -*-
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"""
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/***************************************************************************
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Name : DB Manager
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Description : Database manager plugin for QGIS
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Date : May 23, 2011
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copyright : (C) 2011 by Giuseppe Sucameli
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email : brush.tyler@gmail.com
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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"""
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from qgis.PyQt.QtCore import Qt
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from qgis.PyQt.QtWidgets import QTableView, QAbstractItemView, QApplication, QAction
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from qgis.PyQt.QtGui import QKeySequence, QCursor, QClipboard
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from qgis.utils import OverrideCursor
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from .db_plugins.plugin import DbError, Table
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from .dlg_db_error import DlgDbError
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class TableViewer(QTableView):
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def __init__(self, parent=None):
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QTableView.__init__(self, parent)
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self.setSelectionBehavior(QAbstractItemView.SelectRows)
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self.setSelectionMode(QAbstractItemView.ExtendedSelection)
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self.item = None
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self.dirty = False
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# allow copying results
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copyAction = QAction(QApplication.translate("DBManagerPlugin", "Copy"), self)
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self.addAction(copyAction)
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copyAction.setShortcuts(QKeySequence.Copy)
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copyAction.triggered.connect(self.copySelectedResults)
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self._clear()
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def refresh(self):
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self.dirty = True
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self.loadData(self.item)
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def loadData(self, item):
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if item == self.item and not self.dirty:
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return
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self._clear()
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if item is None:
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return
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if isinstance(item, Table):
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self._loadTableData(item)
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else:
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return
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self.item = item
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self.item.aboutToChange.connect(self.setDirty)
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def setDirty(self, val=True):
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self.dirty = val
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def _clear(self):
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if self.item is not None:
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try:
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self.item.aboutToChange.disconnect(self.setDirty)
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except:
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# do not raise any error if self.item was deleted
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pass
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self.item = None
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self.dirty = False
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# delete the old model
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model = self.model()
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self.setModel(None)
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if model:
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model.deleteLater()
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def _loadTableData(self, table):
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with OverrideCursor(Qt.WaitCursor):
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try:
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# set the new model
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self.setModel(table.tableDataModel(self))
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except DbError as e:
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DlgDbError.showError(e, self)
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else:
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self.update()
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def copySelectedResults(self):
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if len(self.selectedIndexes()) <= 0:
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return
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model = self.model()
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# convert to string using tab as separator
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text = model.headerToString("\t")
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for idx in self.selectionModel().selectedRows():
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text += "\n" + model.rowToString(idx.row(), "\t")
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QApplication.clipboard().setText(text, QClipboard.Selection)
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QApplication.clipboard().setText(text, QClipboard.Clipboard)
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