midipattern: use Esc key to close UI

Signed-off-by: falkTX <falktx@falktx.com>

resources/ui/midipattern.ui

@@ -403,7 +403,7 @@
      <x>0</x>
      <y>0</y>
      <width>755</width>
-     <height>20</height>
+     <height>23</height>
     </rect>
    </property>
    <widget class="QMenu" name="menu_File">
@@ -428,6 +428,9 @@
    <property name="text">
     <string>&amp;Quit</string>
    </property>
+   <property name="shortcut">
+    <string>Esc</string>
+   </property>
   </action>
   <action name="act_edit_insert">
    <property name="checkable">

source/frontend/widgets/pianoroll.py

@@ -24,7 +24,7 @@ from PyQt5.QtCore import Qt, QRectF, QPointF, pyqtSignal
 from PyQt5.QtGui import QColor, QCursor, QFont, QPen, QPainter, QTransform
 from PyQt5.QtWidgets import QGraphicsItem, QGraphicsLineItem, QGraphicsOpacityEffect, QGraphicsRectItem, QGraphicsSimpleTextItem
 from PyQt5.QtWidgets import QGraphicsScene, QGraphicsView
-from PyQt5.QtWidgets import QWidget, QLabel, QComboBox, QHBoxLayout, QVBoxLayout, QStyle
+from PyQt5.QtWidgets import QApplication, QComboBox, QHBoxLayout, QLabel, QStyle, QVBoxLayout, QWidget
 
 # ------------------------------------------------------------------------------------------------------------
 # Imports (Custom)
@@ -474,6 +474,10 @@ class PianoRoll(QGraphicsScene):
     def keyPressEvent(self, event):
         QGraphicsScene.keyPressEvent(self, event)
 
+        if event.key() == Qt.Key_Escape:
+            QApplication.instance().closeAllWindows()
+            return
+
         if event.key() == Qt.Key_F:
             if not self.insert_mode:
                 # turn off velocity mode