new: playback from current block

engine/api.py

@@ -319,6 +319,19 @@ def setMetadata(data):
 def playFromCursor():
     playFrom(ticks=session.data.cursorExport()["tickindex"])
 
+def playFromBlockStart():
+    tr = session.data.currentTrack()
+    ticks = 0
+    for idx, bl in enumerate(tr.blocks):
+        if idx == tr.state.blockindex:
+            playFrom(ticks)
+            return
+        else:
+            ticks += bl.duration()
+    else:
+        raise RuntimeError("reached end of blocks without matchin  current block index")
+
+
 topLevelFunction = None
 def simpleCommand(function, autoStepLeft = True, forceReturnToItem = None):
     """

qtgui/designer/mainwindow.py

@@ -2,7 +2,7 @@
 
 # Form implementation generated from reading ui file 'mainwindow.ui'
 #
-# Created by: PyQt5 UI code generator 5.15.1
+# Created by: PyQt5 UI code generator 5.15.2
 #
 # WARNING: Any manual changes made to this file will be lost when pyuic5 is
 # run again.  Do not edit this file unless you know what you are doing.
@@ -662,6 +662,8 @@ class Ui_MainWindow(object):
         self.actionZoom_Out_Score_View.setObjectName("actionZoom_Out_Score_View")
         self.actionQuit = QtWidgets.QAction(MainWindow)
         self.actionQuit.setObjectName("actionQuit")
+        self.actionPlay_from_Block = QtWidgets.QAction(MainWindow)
+        self.actionPlay_from_Block.setObjectName("actionPlay_from_Block")
         self.menuObjects.addAction(self.actionMetrical_Instruction)
         self.menuObjects.addAction(self.actionClef)
         self.menuObjects.addAction(self.actionKey_Signature)
@@ -798,6 +800,7 @@ class Ui_MainWindow(object):
         self.menuView.addSeparator()
         self.menuView.addAction(self.actionPlayPause)
         self.menuView.addAction(self.actionPlayFromEditCursor)
+        self.menuView.addAction(self.actionPlay_from_Block)
         self.menuView.addAction(self.actionPlayFromBeginning)
         self.menuView.addAction(self.actionMetronome_Enabled)
         self.menuView.addSeparator()
@@ -989,3 +992,5 @@ class Ui_MainWindow(object):
         self.actionZoom_Out_Score_View.setText(_translate("MainWindow", "Zoom Out Score View"))
         self.actionQuit.setText(_translate("MainWindow", "Quit (without saving)"))
         self.actionQuit.setShortcut(_translate("MainWindow", "Ctrl+Q"))
+        self.actionPlay_from_Block.setText(_translate("MainWindow", "Play from Block"))
+        self.actionPlay_from_Block.setShortcut(_translate("MainWindow", "Alt+Space"))

qtgui/designer/mainwindow.ui

@@ -225,6 +225,7 @@
     <addaction name="separator"/>
     <addaction name="actionPlayPause"/>
     <addaction name="actionPlayFromEditCursor"/>
+    <addaction name="actionPlay_from_Block"/>
     <addaction name="actionPlayFromBeginning"/>
     <addaction name="actionMetronome_Enabled"/>
     <addaction name="separator"/>
@@ -1742,6 +1743,14 @@
     <string>Ctrl+Q</string>
    </property>
   </action>
+  <action name="actionPlay_from_Block">
+   <property name="text">
+    <string>Play from Block</string>
+   </property>
+   <property name="shortcut">
+    <string>Alt+Space</string>
+   </property>
+  </action>
  </widget>
  <resources/>
  <connections/>

qtgui/menu.py

@@ -207,6 +207,7 @@ class MenuActionDatabase(object):
             self.mainWindow.ui.actionPlayFromBeginning : api.playFromStart,
             self.mainWindow.ui.actionPlayPause : api.playPause,
             self.mainWindow.ui.actionPlayFromEditCursor : api.playFromCursor,
+            self.mainWindow.ui.actionPlay_from_Block : api.playFromBlockStart,
             self.mainWindow.ui.actionMetronome_Enabled : api.toggleMetronome, #toggle is enough. The callback makes sure all the checkboxes have the correct value.
             }