1 files changed, 112 insertions, 0 deletions
diff --git a/raphodo/chevroncombo.py b/raphodo/chevroncombo.py
new file mode 100644
index 0000000..744fa4d
--- /dev/null
+++ b/raphodo/chevroncombo.py
@@ -0,0 +1,112 @@
+# Copyright (C) 2016-2017 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/>.
+
+"""
+Combo box with a chevron selector
+"""
+
+__author__ = 'Damon Lynch'
+__copyright__ = "Copyright 2011-2017, Damon Lynch"
+
+from PyQt5.QtWidgets import QStyledItemDelegate, QComboBox, QLabel, QSizePolicy
+from PyQt5.QtGui import QFontMetrics, QFont
+from PyQt5.QtCore import Qt
+
+import raphodo.qrc_resources as qrc_resources
+
+
+class ChevronCombo(QComboBox):
+    """
+    Combo box with a chevron selector
+    """
+
+    def __init__(self, in_panel: bool=False, parent=None) -> None:
+        """
+        :param in_panel: if True, widget color set to background color,
+         else set to window color
+        """
+
+        super().__init__(parent)
+
+        if in_panel:
+            color = 'background'
+        else:
+            color = 'window'
+
+        style = """
+        QComboBox {
+            border: 0px;
+            padding: 1px 3px 1px 3px;
+            background-color: palette(%(color)s);
+            selection-background-color: palette(highlight);
+            color: palette(window-text);
+        }
+
+        QComboBox:on { /* shift the text when the popup opens */
+            padding-top: 3px;
+            padding-left: 4px;
+        }
+
+        QComboBox::drop-down {
+             subcontrol-origin: padding;
+             subcontrol-position: top right;
+             width: %(width)dpx;
+             border: 0px;
+         }
+
+        QComboBox::down-arrow {
+            image: url(:/chevron-down.svg);
+            width: %(width)dpx;
+        }
+
+        QComboBox QAbstractItemView {
+            outline: none;
+            border: 1px solid palette(shadow);
+            background-color: palette(%(color)s);
+            selection-background-color: palette(highlight);
+            selection-color: palette(highlighted-text);
+            color: palette(window-text)
+        }
+
+        QComboBox QAbstractItemView::item {
+            padding: 3px;
+        }
+        """ % dict(width=int(QFontMetrics(QFont()).height() * (2 / 3)), color=color)
+
+        self.label_style = """
+        QLabel {border-color: palette(%(color)s); border-width: 1px; border-style: solid;}
+        """ % dict(color=color)
+
+        self.setStyleSheet(style)
+
+        # Delegate overrides default delegate for the Combobox, which is
+        # pretty ugly whenever a style sheet color is applied.
+        # See http://stackoverflow.com/questions/13308341/qcombobox-abstractitemviewitem?rq=1
+        self.setItemDelegate(QStyledItemDelegate())
+
+        self.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Maximum)
+
+    def makeLabel(self, text: str) -> QLabel:
+        label = QLabel(text)
+        # Add an invisible border to make the label vertically align with the comboboxes
+        # Otherwise it's off by 1px
+        # TODO perhaps come up with a better way to solve this alignment problem
+        label.setStyleSheet(self.label_style)
+        label.setAlignment(Qt.AlignBottom)
+        label.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Maximum)
+        return label