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| ''' | ||
| Elypson/qt-collapsible-section | ||
| (c) 2016 Michael A. Voelkel - [email protected] | ||
| This file is part of Elypson/qt-collapsible section. | ||
| Elypson/qt-collapsible-section is free software: you can redistribute it and/or modify | ||
| it under the terms of the GNU Lesser General Public License as published by | ||
| the Free Software Foundation, version 3 of the License, or | ||
| (at your option) any later version. | ||
| Elypson/qt-collapsible-section is distributed in the hope that it will be useful, | ||
| but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| GNU Lesser General Public License for more details. | ||
| You should have received a copy of the GNU General Public License | ||
| along with Elypson/qt-collapsible-section. If not, see <http:#www.gnu.org/licenses/>. | ||
| ''' | ||
|
|
||
| import PyQt5.QtCore as cr | ||
| import PyQt5.QtWidgets as wd | ||
| # import PyQt5.QtGui as gui | ||
| import sys | ||
|
|
||
| class Spoiler(wd.QWidget): | ||
| def __init__(self, title="", animationDuration=100, parent=None): | ||
| super().__init__(parent) | ||
| self.animationDuration = animationDuration | ||
| self.toggleButton = wd.QToolButton(self) | ||
| self.headerLine = wd.QFrame(self) | ||
| self.toggleAnimation = cr.QParallelAnimationGroup(self) | ||
| self.contentArea = wd.QScrollArea(self) | ||
| self.mainLayout = wd.QGridLayout(self) | ||
|
|
||
| self.toggleButton.setStyleSheet("QToolButton {border: none;}") | ||
| self.toggleButton.setToolButtonStyle(cr.Qt.ToolButtonTextBesideIcon) | ||
| self.toggleButton.setArrowType(cr.Qt.RightArrow) | ||
| self.toggleButton.setText(title) | ||
| self.toggleButton.setCheckable(True) | ||
| self.toggleButton.setChecked(False) | ||
|
|
||
| self.headerLine.setFrameShape(wd.QFrame.HLine) | ||
| self.headerLine.setFrameShadow(wd.QFrame.Sunken) | ||
| self.headerLine.setSizePolicy(wd.QSizePolicy.Expanding, wd.QSizePolicy.Maximum) | ||
|
|
||
| # self.contentArea.setLayout(wd.QHBoxLayout()) | ||
| self.contentArea.setSizePolicy(wd.QSizePolicy.Expanding, wd.QSizePolicy.Fixed) | ||
|
|
||
| # start out collapsed | ||
| self.contentArea.setMaximumHeight(0) | ||
| self.contentArea.setMinimumHeight(0) | ||
|
|
||
| # let the entire widget grow and shrink with its content | ||
| self.toggleAnimation.addAnimation(cr.QPropertyAnimation(self, b"minimumHeight")) | ||
| self.toggleAnimation.addAnimation(cr.QPropertyAnimation(self, b"maximumHeight")) | ||
| self.toggleAnimation.addAnimation(cr.QPropertyAnimation(self.contentArea, b"maximumHeight")) | ||
|
|
||
| self.mainLayout.setVerticalSpacing(0) | ||
| self.mainLayout.setContentsMargins(0, 0, 0, 0) | ||
|
|
||
| row = 0 | ||
| self.mainLayout.addWidget(self.toggleButton, row, 0, 1, 1, cr.Qt.AlignLeft) | ||
| self.mainLayout.addWidget(self.headerLine, row, 2, 1, 1) | ||
| self.mainLayout.addWidget(self.contentArea, row+1, 0, 1, 3) | ||
| self.setLayout(self.mainLayout) | ||
|
|
||
| self.toggleButton.toggled.connect(self.toggle) | ||
|
|
||
| def setContentLayout(self, contentLayout): | ||
| # self.clear_layout(self.contentArea.layout()) | ||
| # del self.contentArea.layout() | ||
| self.contentArea.setLayout(contentLayout) | ||
| collapsedHeight = self.sizeHint().height() - self.contentArea.maximumHeight() | ||
| contentHeight = contentLayout.sizeHint().height() | ||
| for i in range(0, self.toggleAnimation.animationCount()-1): | ||
| SectionAnimation = self.toggleAnimation.animationAt(i) | ||
| SectionAnimation.setDuration(self.animationDuration) | ||
| SectionAnimation.setStartValue(collapsedHeight) | ||
| SectionAnimation.setEndValue(collapsedHeight + contentHeight) | ||
| contentAnimation = self.toggleAnimation.animationAt(self.toggleAnimation.animationCount() - 1) | ||
| contentAnimation.setDuration(self.animationDuration) | ||
| contentAnimation.setStartValue(0) | ||
| contentAnimation.setEndValue(contentHeight) | ||
|
|
||
| def toggle(self, collapsed): | ||
| if collapsed: | ||
| self.toggleButton.setArrowType(cr.Qt.DownArrow) | ||
| self.toggleAnimation.setDirection(cr.QAbstractAnimation.Forward) | ||
| else: | ||
| self.toggleButton.setArrowType(cr.Qt.RightArrow) | ||
| self.toggleAnimation.setDirection(cr.QAbstractAnimation.Backward) | ||
| self.toggleAnimation.start() | ||
|
|
||
|
|
||
| def clear_layout(self, layout): | ||
| '''Completely remove all widgets of the layout and the same for the | ||
| child layouts. Works. No memory leak. Widgets are destoryed.''' | ||
| while layout.count(): | ||
| child = layout.takeAt(0) | ||
| if child.widget() is not None: | ||
| child.widget().deleteLater() | ||
| elif child.layout() is not None: | ||
| self.clear_layout(child.layout()) | ||
|
|
||
|
|
||
| if __name__ == '__main__': | ||
| class Window(wd.QMainWindow): | ||
| def __init__(self, parent=None): | ||
| super().__init__(parent) | ||
| section = Spoiler("Spoiler", 100, self) | ||
|
|
||
| anyLayout = wd.QVBoxLayout() | ||
| anyLayout.addWidget(wd.QLabel("Some Text in Spoiler", section)) | ||
| anyLayout.addWidget(wd.QPushButton("Button in Spoiler", section)) | ||
|
|
||
| section.setContentLayout(anyLayout) | ||
|
|
||
| self.place_holder = wd.QWidget() # placeholder widget, only used to get acces to wd.QMainWindow functionalities | ||
| mainLayout = wd.QHBoxLayout(self.place_holder) | ||
| mainLayout.addWidget(section) | ||
| mainLayout.addStretch(1) | ||
| self.setCentralWidget(self.place_holder) | ||
| app = wd.QApplication(sys.argv) | ||
| window = Window() | ||
| window.show() | ||
| sys.exit(app.exec_()) | ||
| ''' | ||
| Elypson/qt-collapsible-section | ||
| (c) 2016 Michael A. Voelkel - [email protected] | ||
| This file is part of Elypson/qt-collapsible section. | ||
| Elypson/qt-collapsible-section is free software: you can redistribute it and/or modify | ||
| it under the terms of the GNU Lesser General Public License as published by | ||
| the Free Software Foundation, version 3 of the License, or | ||
| (at your option) any later version. | ||
| Elypson/qt-collapsible-section is distributed in the hope that it will be useful, | ||
| but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| GNU Lesser General Public License for more details. | ||
| You should have received a copy of the GNU General Public License | ||
| along with Elypson/qt-collapsible-section. If not, see <http:#www.gnu.org/licenses/>. | ||
| ''' | ||
|
|
||
| import PyQt5.QtCore as cr | ||
| import PyQt5.QtWidgets as wd | ||
| # import PyQt5.QtGui as gui | ||
| import sys | ||
|
|
||
| class Section(wd.QWidget): | ||
| def __init__(self, title="", animationDuration=100, parent=None): | ||
| super().__init__(parent) | ||
| self.animationDuration = animationDuration | ||
| self.toggleButton = wd.QToolButton(self) | ||
| self.headerLine = wd.QFrame(self) | ||
| self.toggleAnimation = cr.QParallelAnimationGroup(self) | ||
| self.contentArea = wd.QScrollArea(self) | ||
| self.mainLayout = wd.QGridLayout(self) | ||
|
|
||
| self.toggleButton.setStyleSheet("QToolButton {border: none;}") | ||
| self.toggleButton.setToolButtonStyle(cr.Qt.ToolButtonTextBesideIcon) | ||
| self.toggleButton.setArrowType(cr.Qt.RightArrow) | ||
| self.toggleButton.setText(title) | ||
| self.toggleButton.setCheckable(True) | ||
| self.toggleButton.setChecked(False) | ||
|
|
||
| self.headerLine.setFrameShape(wd.QFrame.HLine) | ||
| self.headerLine.setFrameShadow(wd.QFrame.Sunken) | ||
| self.headerLine.setSizePolicy(wd.QSizePolicy.Expanding, wd.QSizePolicy.Maximum) | ||
|
|
||
| # self.contentArea.setLayout(wd.QHBoxLayout()) | ||
| self.contentArea.setSizePolicy(wd.QSizePolicy.Expanding, wd.QSizePolicy.Fixed) | ||
|
|
||
| # start out collapsed | ||
| self.contentArea.setMaximumHeight(0) | ||
| self.contentArea.setMinimumHeight(0) | ||
|
|
||
| # let the entire widget grow and shrink with its content | ||
| self.toggleAnimation.addAnimation(cr.QPropertyAnimation(self, b"minimumHeight")) | ||
| self.toggleAnimation.addAnimation(cr.QPropertyAnimation(self, b"maximumHeight")) | ||
| self.toggleAnimation.addAnimation(cr.QPropertyAnimation(self.contentArea, b"maximumHeight")) | ||
|
|
||
| self.mainLayout.setVerticalSpacing(0) | ||
| self.mainLayout.setContentsMargins(0, 0, 0, 0) | ||
|
|
||
| row = 0 | ||
| self.mainLayout.addWidget(self.toggleButton, row, 0, 1, 1, cr.Qt.AlignLeft) | ||
| self.mainLayout.addWidget(self.headerLine, row, 2, 1, 1) | ||
| self.mainLayout.addWidget(self.contentArea, row+1, 0, 1, 3) | ||
| self.setLayout(self.mainLayout) | ||
|
|
||
| self.toggleButton.toggled.connect(self.toggle) | ||
|
|
||
| def setContentLayout(self, contentLayout): | ||
| # self.clear_layout(self.contentArea.layout()) | ||
| # del self.contentArea.layout() | ||
| self.contentArea.setLayout(contentLayout) | ||
| collapsedHeight = self.sizeHint().height() - self.contentArea.maximumHeight() | ||
| contentHeight = contentLayout.sizeHint().height() | ||
| for i in range(0, self.toggleAnimation.animationCount()-1): | ||
| SectionAnimation = self.toggleAnimation.animationAt(i) | ||
| SectionAnimation.setDuration(self.animationDuration) | ||
| SectionAnimation.setStartValue(collapsedHeight) | ||
| SectionAnimation.setEndValue(collapsedHeight + contentHeight) | ||
| contentAnimation = self.toggleAnimation.animationAt(self.toggleAnimation.animationCount() - 1) | ||
| contentAnimation.setDuration(self.animationDuration) | ||
| contentAnimation.setStartValue(0) | ||
| contentAnimation.setEndValue(contentHeight) | ||
|
|
||
| def toggle(self, collapsed): | ||
| if collapsed: | ||
| self.toggleButton.setArrowType(cr.Qt.DownArrow) | ||
| self.toggleAnimation.setDirection(cr.QAbstractAnimation.Forward) | ||
| else: | ||
| self.toggleButton.setArrowType(cr.Qt.RightArrow) | ||
| self.toggleAnimation.setDirection(cr.QAbstractAnimation.Backward) | ||
| self.toggleAnimation.start() | ||
|
|
||
|
|
||
| def clear_layout(self, layout): | ||
| '''Completely remove all widgets of the layout and the same for the | ||
| child layouts. Works. No memory leak. Widgets are destoryed.''' | ||
| while layout.count(): | ||
| child = layout.takeAt(0) | ||
| if child.widget() is not None: | ||
| child.widget().deleteLater() | ||
| elif child.layout() is not None: | ||
| self.clear_layout(child.layout()) | ||
|
|
||
|
|
||
| if __name__ == '__main__': | ||
| class Window(wd.QMainWindow): | ||
| def __init__(self, parent=None): | ||
| super().__init__(parent) | ||
| section = Section("Section", 100, self) | ||
|
|
||
| anyLayout = wd.QVBoxLayout() | ||
| anyLayout.addWidget(wd.QLabel("Some Text in Section", section)) | ||
| anyLayout.addWidget(wd.QPushButton("Button in Section", section)) | ||
|
|
||
| section.setContentLayout(anyLayout) | ||
|
|
||
| self.place_holder = wd.QWidget() # placeholder widget, only used to get acces to wd.QMainWindow functionalities | ||
| mainLayout = wd.QHBoxLayout(self.place_holder) | ||
| mainLayout.addWidget(section) | ||
| mainLayout.addStretch(1) | ||
| self.setCentralWidget(self.place_holder) | ||
| app = wd.QApplication(sys.argv) | ||
| window = Window() | ||
| window.show() | ||
| sys.exit(app.exec_()) | ||
|
|