1 files changed, 108 insertions, 0 deletions
diff --git a/raphodo/messagewidget.py b/raphodo/messagewidget.py
new file mode 100644
index 0000000..b76ab40
--- /dev/null
+++ b/raphodo/messagewidget.py
@@ -0,0 +1,108 @@
+# Copyright (C) 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/>.
+
+"""
+Display messages to the user in stacked widget
+"""
+
+__author__ = 'Damon Lynch'
+__copyright__ = "Copyright 2017, Damon Lynch"
+
+from typing import Tuple
+from gettext import gettext as _
+
+from PyQt5.QtCore import (Qt, pyqtSlot, pyqtSignal)
+from PyQt5.QtWidgets import (QSizePolicy, QStackedWidget, QPushButton, QLabel)
+from PyQt5.QtGui import (QMouseEvent, QFocusEvent)
+
+
+class MessageWidget(QStackedWidget):
+    """
+    Display messages to the user in stacked widget.
+
+    Index 0 always represents a blank state.
+
+    Other indexes represent the position in the
+    tuple of messages.
+
+    If the message does not start with an html tag <i> or <b>,
+    the start of the message will be modified to display <i><b>Hint:</b>
+    (with closing tags too, naturally).
+    """
+
+    def __init__(self, messages: Tuple[str,...], parent=None) -> None:
+        super().__init__(parent)
+
+        # For some obscure reason, must set the label types for all labels in the stacked
+        # widget to have the same properties, or else the stacked layout size goes bonkers.
+        # Must make the empty label contain *something*, too, so make it contain a space.
+        blank = QLabel(' ')
+        blank.setWordWrap(True)
+        blank.setTextFormat(Qt.RichText)
+        self.addWidget(blank)
+
+        for message in messages:
+            if message.startswith('<i>') or message.startswith('<b>'):
+                label = QLabel(message)
+            else:
+                # Translators: please do not modify or leave out html formatting tags like <i> and
+                # <b>. These are used to format the text the users sees
+                label = QLabel(_("<i><b>Hint:</b> %(message)s") % dict(message=message))
+            label.setWordWrap(True)
+            label.setTextFormat(Qt.RichText)
+            label.setAlignment(Qt.AlignTop|Qt.AlignLeft)
+            self.addWidget(label)
+
+        self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Maximum)
+
+
+class MessageButton(QPushButton):
+    """
+    A simple QPushButton that emits a signal when it is entered / exited.
+    """
+
+    isActive = pyqtSignal()
+    isInactive = pyqtSignal()
+
+    def __init__(self, label: str, parent=None) -> None:
+        super().__init__(label, parent)
+
+    @pyqtSlot(QMouseEvent)
+    def enterEvent(self, event: QMouseEvent) -> None:
+        self.isActive.emit()
+        super().enterEvent(event)
+
+    @pyqtSlot(QMouseEvent)
+    def leaveEvent(self, event: QMouseEvent) -> None:
+        self.isInactive.emit()
+        super().leaveEvent(event)
+
+    @pyqtSlot(QFocusEvent)
+    def focusInEvent(self, event: QFocusEvent) -> None:
+        self.isActive.emit()
+        super().focusInEvent(event)
+
+    @pyqtSlot(QFocusEvent)
+    def focusOutEvent(self, event: QFocusEvent) -> None:
+        self.isInactive.emit()
+        super().focusOutEvent(event)
+
+
+
+
+