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Diffstat (limited to 'raphodo/panelview.py')
| -rw-r--r-- | raphodo/panelview.py | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/raphodo/panelview.py b/raphodo/panelview.py new file mode 100644 index 0000000..52b381f --- /dev/null +++ b/raphodo/panelview.py @@ -0,0 +1,136 @@ +# Copyright (C) 2016 Damon Lynch <damonlynch@gmail.com> + +# This file is part of Rapid Photo Downloader. +# +# Rapid Photo Downloader is free software: you can redistribute it and/or +# modify it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# Rapid Photo Downloader 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 General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with Rapid Photo Downloader. If not, +# see <http://www.gnu.org/licenses/>. + +""" +Widget containing header, which can have an optional widget +attached to the right side. + +Portions modeled on Canonical's QExpander, which is an 'Expander widget +similar to the GtkExpander', Copyright 2012 Canonical Ltd +""" + +__author__ = 'Damon Lynch' +__copyright__ = "Copyright 2016, Damon Lynch" + +from typing import Optional + +from PyQt5.QtCore import (Qt, QSize) +from PyQt5.QtGui import (QColor, QFontMetrics, QFont) +from PyQt5.QtWidgets import (QHBoxLayout, QLabel, QSizePolicy, QVBoxLayout, + QWidget, QScrollArea, QFrame) + +from raphodo.constants import minPanelWidth + +class QPanelView(QWidget): + """ + A header bar with a child widget. + """ + + def __init__(self, label: str, + headerColor: Optional[QColor]=None, + headerFontColor: Optional[QColor]=None, + parent: QWidget=None) -> None: + + super().__init__(parent) + + self.header = QWidget(self) + if headerColor is not None: + headerStyle = """QWidget { background-color: %s; }""" % headerColor.name() + self.header.setStyleSheet(headerStyle) + self.header.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.Fixed) + + self.headerLayout = QHBoxLayout() + self.headerLayout.setContentsMargins(5, 2, 5, 2) + + self.label = QLabel(label.upper()) + if headerFontColor is not None: + headerFontStyle = "QLabel {color: %s;}" % headerFontColor.name() + self.label.setStyleSheet(headerFontStyle) + + self.header.setLayout(self.headerLayout) + self.headerLayout.addWidget(self.label) + self.headerLayout.addStretch() + + self.headerWidget = None + + self.content = None + layout = QVBoxLayout() + layout.setContentsMargins(0, 0, 0, 0) + layout.setSpacing(0) + self.setLayout(layout) + layout.addWidget(self.header) + + def addWidget(self, widget: QWidget) -> None: + """ + Add a widget to the Panel View. + + Any previous widget will be removed. + + :param widget: widget to add + """ + + if self.content is not None: + self.layout().removeWidget(self.content) + self.content = widget + self.layout().addWidget(self.content) + + def addHeaderWidget(self, widget: QWidget) -> None: + """ + Add a widget to the the header bar, on the right side. + + Any previous widget will be removed. + + :param widget: widget to add + """ + if self.headerWidget is not None: + self.headerLayout.removeWidget(self.headerWidget) + self.headerWidget = widget + self.headerLayout.addWidget(widget) + + def text(self) -> str: + """Return the text of the label.""" + return self.label.text() + + def setText(self, text: str) -> None: + """Set the text of the label.""" + self.label.setText(text) + + def minimumSize(self) -> QSize: + if self.content is None: + font_height = QFontMetrics(QFont).height() + width = minPanelWidth() + height = font_height * 2 + else: + width = self.content.minimumWidth() + height = self.content.minimumHeight() + return QSize(width, self.header.height() + height) + + +class QComputerScrollArea(QScrollArea): + """ + Places a QPanelView into a Scroll Area + """ + + def __init__(self, panelView: QPanelView, parent=None): + super().__init__(parent) + self.setFrameShape(QFrame.NoFrame) + self.setWidgetResizable(True) + self.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff) + self.panelView = panelView + self.setWidget(panelView) + self.setMinimumSize(panelView.minimumSize())
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