1 files changed, 81 insertions, 0 deletions
diff --git a/extras/UI_Handeler.py b/extras/UI_Handeler.py
new file mode 100644
index 0000000..d591766
--- /dev/null
+++ b/extras/UI_Handeler.py
@@ -0,0 +1,81 @@
+from main import *
+from PyQt5.QtCore import QPropertyAnimation
+from PyQt5 import QtCore, QtWidgets
+from PyQt5.QtGui import QPixmap, QPainter
+from PyQt5.QtCore import QTimeLine
+from PyQt5.QtWidgets import QWidget, QStackedWidget, QPushButton
+from functools import partial
+
+class UI_Handeler(MainWindow):
+    def toggleNavigationBar(self, maxWidth, enable):
+        if enable:
+            width = self.leftMenuSubContainer.width()
+            maxExtend = maxWidth
+            standard = 80
+
+            if width == 80:
+                widthExtended = maxExtend
+            else:
+                widthExtended = standard
+
+            self.animation = QPropertyAnimation(self.leftMenuSubContainer, b"minimumWidth")
+            self.animation.setDuration(400)
+            self.animation.setStartValue(width)
+            self.animation.setEndValue(widthExtended)
+            self.animation.setEasingCurve(QtCore.QEasingCurve.InOutQuart)
+            self.animation.start()
+
+    # animate switching pages for QstackedWidget with the animation being a fade in and out
+    def animateSwitch(self, index):
+        self.fader_widget = FaderWidget(self.stackedWidget.currentWidget(), self.stackedWidget.widget(index))
+        self.stackedWidget.setCurrentIndex(index)
+
+    # add window resizing to the UI
+    def toggleMaximized(self):
+        if self.isMaximized():
+            self.showNormal()
+        else:
+            self.showMaximized()
+
+    # move the window by dragging the header
+    def moveWindow(self, event):
+
+        if event.buttons() == QtCore.Qt.LeftButton:
+            self.move(self.pos() + event.globalPos() - self.clickPosition)
+            self.clickPosition = event.globalPos()
+            event.accept()
+
+    # get the position of the mouse when clicked
+    def mousePressEvent(self, event):
+        self.clickPosition = event.globalPos()
+        event.accept()
+
+    # get the position of the mouse when released
+    def mouseReleaseEvent(self, event):
+        self.clickPosition = None
+        event.accept()
+
+class FaderWidget(QWidget):
+    def __init__(self, old_widget, new_widget): 
+        QWidget.__init__(self, new_widget)    
+        self.old_pixmap = QPixmap(new_widget.size())
+        old_widget.render(self.old_pixmap)
+        self.pixmap_opacity = 1.0  
+        self.timeline = QTimeLine()
+        self.timeline.valueChanged.connect(self.animate)
+        self.timeline.finished.connect(self.close)
+        self.timeline.setDuration(250)
+        self.timeline.start()  
+        self.resize(new_widget.size())
+        self.show()
+    
+    def paintEvent(self, event):
+        painter = QPainter()
+        painter.begin(self)
+        painter.setOpacity(self.pixmap_opacity)
+        painter.drawPixmap(0, 0, self.old_pixmap)
+        painter.end()
+    
+    def animate(self, value):
+        self.pixmap_opacity = 1.0 - value
+        self.repaint()
+\ No newline at end of file