[widgets][toolchaineditor] generic block type creation capability

beat/editor/widgets/analyzer.drawio

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beat/editor/widgets/block.drawio

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beat/editor/widgets/dataset.drawio

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beat/editor/widgets/toolchaineditor.py

@@ -40,13 +40,16 @@ from PyQt5.QtGui import QFont
 from PyQt5.QtGui import QFontMetrics
 from PyQt5.QtGui import QPainterPath
 from PyQt5.QtGui import QTransform
+from PyQt5.QtGui import QIcon
 
-from PyQt5.QtWidgets import QVBoxLayout
+from PyQt5.QtWidgets import QHBoxLayout
 from PyQt5.QtWidgets import QWidget
 from PyQt5.QtWidgets import QGraphicsView
 from PyQt5.QtWidgets import QGraphicsItem
 from PyQt5.QtWidgets import QGraphicsPathItem
 from PyQt5.QtWidgets import QGraphicsObject
+from PyQt5.QtWidgets import QToolBar
+from PyQt5.QtWidgets import QAction
 
 from ..backend.asset import AssetType
 from ..backend.assetmodel import AssetModel
@@ -369,27 +372,25 @@ class Block(QGraphicsObject):
     dataChanged = pyqtSignal()
     blockMoved = pyqtSignal()
 
-    def __init__(self, toolchain, block_details, block_type, style, connection_style):
+    def __init__(self, block_type, style, connection_style):
         super().__init__()
 
         # Block information
-        self.toolchain = toolchain
+        self.type = block_type
+        self.name = ""
 
-        self.name = block_details["name"]
-        if block_type == BlockType.DATASETS.name:
+        if self.type == BlockType.DATASETS.name:
             self.inputs = None
         else:
-            self.inputs = block_details["inputs"]
-        if block_type == BlockType.ANALYZERS.name:
+            self.inputs = []
+
+        if self.type == BlockType.ANALYZERS.name:
             self.outputs = None
         else:
-            self.outputs = block_details["outputs"]
+            self.outputs = []
+
+        self.synchronized_channel = None
 
-        if "synchronized_channel" in block_details:
-            self.synchronized_channel = block_details["synchronized_channel"]
-        else:
-            self.synchronized_channel = None
-        self.type = block_type
         self.style = style
         self.connection_style = connection_style
 
@@ -399,6 +400,21 @@ class Block(QGraphicsObject):
         self.pins["outputs"] = dict()
 
         self.set_style(style)
+
+    def load(self, toolchain, block_details):
+        self.toolchain = toolchain
+        self.name = block_details["name"]
+
+        if self.type != BlockType.DATASETS.name:
+            self.inputs = block_details["inputs"]
+
+        if self.type != BlockType.ANALYZERS.name:
+            self.outputs = block_details["outputs"]
+
+        if "synchronized_channel" in block_details:
+            self.synchronized_channel = block_details["synchronized_channel"]
+
+        self.set_style(self.style)
         self.create_pins()
 
     def create_pins(self):
@@ -440,14 +456,14 @@ class Block(QGraphicsObject):
         metrics = QFontMetrics(self.text_font)
         text_width = metrics.boundingRect(self.name).width() + 14
 
-        if self.inputs is not None:
+        if self.inputs is not None and len(self.inputs) > 0:
             self.max_inputs_width = (
                 metrics.boundingRect(max(self.inputs, key=len)).width() + 14
             )
         else:
             self.max_inputs_width = 14
 
-        if self.outputs is not None:
+        if self.outputs is not None and len(self.outputs) > 0:
             self.max_outputs_width = (
                 metrics.boundingRect(max(self.outputs, key=len)).width() + 14
             )
@@ -688,9 +704,38 @@ class Toolchain(QWidget):
 
         self.view = ToolchainView(self)
         self.view.setScene(self.scene)
-        layout = QVBoxLayout(self)
+
+        self.toolbar = QToolBar()
+
+        dataset_action = QAction(
+            QIcon("beat/editor/widgets/dataset_icon.png"), "&Dataset", self
+        )
+        dataset_action.triggered.connect(lambda: self.add_block(BlockType.DATASETS))
+        block_action = QAction(
+            QIcon("beat/editor/widgets/block_icon.png"), "&Block", self
+        )
+        block_action.triggered.connect(lambda: self.add_block(BlockType.BLOCKS))
+        analyzer_action = QAction(
+            QIcon("beat/editor/widgets/analyzer_icon.png"), "&Analyzer", self
+        )
+        analyzer_action.triggered.connect(lambda: self.add_block(BlockType.ANALYZERS))
+
+        self.toolbar.addAction(dataset_action)
+        self.toolbar.addAction(block_action)
+        self.toolbar.addAction(analyzer_action)
+
+        self.toolbar.setOrientation(Qt.Vertical)
+
+        layout = QHBoxLayout(self)
+        layout.addWidget(self.toolbar)
         layout.addWidget(self.view)
 
+    def add_block(self, block_type):
+        self.new_block = Block(
+            block_type.name, self.block_config, self.connection_config
+        )
+        self.scene.addItem(self.new_block)
+
     def clear_space(self):
         self.scene.clear()
         self.scene.items().clear()
@@ -719,12 +764,9 @@ class Toolchain(QWidget):
         for block_type in BlockType:
             for block_item in self.json_object[block_type.value]:
                 block = Block(
-                    self,
-                    block_item,
-                    block_type.name,
-                    self.block_config,
-                    self.connection_config,
+                    block_type.name, self.block_config, self.connection_config
                 )
+                block.load(self, block_item)
                 # Place blocks (x,y) if information is given
                 if self.editor_gui is not None:
                     if block.name in self.editor_gui: