| 1 | # ============================================================================ |
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| 2 | # |
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| 3 | # Copyright (C) 2007-2008 Conceptive Engineering bvba. All rights reserved. |
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| 4 | # www.conceptive.be / project-camelot@conceptive.be |
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| 5 | # |
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| 6 | # This file is part of the Camelot Library. |
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| 7 | # |
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| 8 | # This file may be used under the terms of the GNU General Public |
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| 9 | # License version 2.0 as published by the Free Software Foundation |
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| 10 | # and appearing in the file LICENSE.GPL included in the packaging of |
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| 11 | # this file. Please review the following information to ensure GNU |
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| 12 | # General Public Licensing requirements will be met: |
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| 13 | # http://www.trolltech.com/products/qt/opensource.html |
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| 14 | # |
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| 15 | # If you are unsure which license is appropriate for your use, please |
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| 16 | # review the following information: |
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| 17 | # http://www.trolltech.com/products/qt/licensing.html or contact |
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| 18 | # project-camelot@conceptive.be. |
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| 19 | # |
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| 20 | # This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE |
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| 21 | # WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
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| 22 | # |
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| 23 | # For use of this library in commercial applications, please contact |
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| 24 | # project-camelot@conceptive.be |
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| 25 | # |
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| 26 | # ============================================================================ |
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| 27 | |
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| 28 | """Controls to filter data""" |
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| 29 | |
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| 30 | import logging |
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| 31 | logger = logging.getLogger('camelot.view.controls.filter') |
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| 32 | |
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| 33 | from PyQt4 import QtGui, QtCore |
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| 34 | |
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| 35 | _ = lambda x:x |
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| 36 | |
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| 37 | filter_changed_signal = QtCore.SIGNAL('filter_changed') |
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| 38 | |
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| 39 | class FilterList(QtGui.QScrollArea): |
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| 40 | """A list with filters that can be applied on a query in the tableview""" |
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| 41 | |
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| 42 | def __init__(self, items, parent): |
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| 43 | """ |
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| 44 | :param items: list of tubles (name, choices) for constructing the different filterboxes |
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| 45 | """ |
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| 46 | QtGui.QScrollArea.__init__(self, parent) |
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| 47 | widget = QtGui.QWidget(self) |
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| 48 | self.setFrameStyle(QtGui.QFrame.NoFrame) |
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| 49 | layout = QtGui.QVBoxLayout() |
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| 50 | |
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| 51 | for filter,(name,options) in items: |
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| 52 | filter_widget = filter.render(widget, name, options) |
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| 53 | layout.addWidget(filter_widget) |
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| 54 | self.connect(filter_widget, |
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| 55 | filter_changed_signal, |
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| 56 | self.emit_filters_changed) |
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| 57 | |
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| 58 | widget.setLayout(layout) |
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| 59 | self.setWidget(widget) |
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| 60 | if len(items) == 0: |
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| 61 | self.setMaximumWidth(0) |
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| 62 | else: |
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| 63 | self.setSizePolicy( QtGui.QSizePolicy.Minimum, QtGui.QSizePolicy.Expanding ) |
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| 64 | |
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| 65 | def decorate_query(self, query): |
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| 66 | for i in range(self.widget().layout().count()): |
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| 67 | if self.widget().layout().itemAt(i).widget(): |
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| 68 | query = self.widget().layout().itemAt(i).widget().decorate_query(query) |
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| 69 | return query |
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| 70 | |
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| 71 | def emit_filters_changed(self): |
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| 72 | logger.debug('filters changed') |
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| 73 | self.emit(QtCore.SIGNAL('filters_changed')) |
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