[ui] GraphEditor: Updated Resizing behaviour for Backdrop

Updating Selection behaviour for Backdrop based Nodes

Author: waaake

meshroom/core/desc/__init__.py

@@ -21,6 +21,7 @@
 )
 from .node import (
     AVCommandLineNode,
+    Backdrop,
     CommandLineNode,
     InitNode,
     InputNode,
@@ -49,6 +50,7 @@
     "StaticNodeSize",
     # node
     "AVCommandLineNode",
+    "Backdrop",
     "CommandLineNode",
     "InitNode",
     "InputNode",

meshroom/core/desc/node.py

@@ -3,7 +3,7 @@
 import shlex
 
 from .computation import Level, StaticNodeSize
-from .attribute import StringParam, ColorParam
+from .attribute import StringParam, ColorParam, FloatParam, IntParam
 
 from meshroom.core import cgroup
 
@@ -122,6 +122,68 @@ def __init__(self):
     def processChunk(self, chunk):
         pass
 
+    def stopProcess(self, chunk):
+        pass
+
+
+class Backdrop(InputNode):
+    """ A Backdrop for other nodes.
+    """
+
+    # The internal inputs' of Backdrop Node needs a Integer Field to determine the font size for the comment
+    internalInputs = [
+        StringParam(
+            name="invalidation",
+            label="Invalidation Message",
+            description="A message that will invalidate the node's output folder.\n"
+                        "This is useful for development, we can invalidate the output of the node when we modify the code.\n"
+                        "It is displayed in bold font in the invalidation/comment messages tooltip.",
+            value="",
+            semantic="multiline",
+            advanced=True,
+            uidIgnoreValue="",  # If the invalidation string is empty, it does not participate to the node's UID
+        ),
+        StringParam(
+            name="comment",
+            label="Comments",
+            description="User comments describing this specific node instance.\n"
+                        "It is displayed in regular font in the invalidation/comment messages tooltip.",
+            value="",
+            semantic="multiline",
+            invalidate=False,
+        ),
+        IntParam(
+            name="fontSize",
+            label="Font Size",
+            description="The Font size for the User Comment on the Backdrop.",
+            value=12,
+            range=(6, 100, 1),
+        ),
+        FloatParam(
+            name="nodeWidth",
+            label="Node Width",
+            description="The Backdrop Node's Width.",
+            value=600,
+            range=None,
+            enabled=False # Hidden always
+        ),
+        FloatParam(
+            name="nodeHeight",
+            label="Node Height",
+            description="The Backdrop Node's Height.",
+            value=400,
+            range=None,
+            enabled=False # Hidden always
+        ),
+        ColorParam(
+            name="color",
+            label="Color",
+            description="Custom color for the node (SVG name or hexadecimal code).",
+            value="",
+            invalidate=False,
+        )
+    ]
+
 
 class CommandLineNode(Node):
     """

meshroom/ui/graph.py

@@ -1033,6 +1033,19 @@ def selectNodesByIndices(
                 self._graph.nodes.index(index), self._graph.nodes.index(index)
             )
 
+            # {{{ Backdrop Selection Logic
+            # Get the node corresponding to the index
+            node = self._graph.nodes[index]
+
+            if node.isBackdrop:
+                for node in self.getBackdropNodes(node):
+                    index = self._graph.nodes.indexOf(node)
+
+                    itemSelection.select(
+                        self._graph.nodes.index(index), self._graph.nodes.index(index)
+                    )
+            # }}}
+
         self._nodeSelection.select(itemSelection, command)
 
         if self.selectedNode and not self.isSelected(self.selectedNode):

meshroom/ui/qml/GraphEditor/GraphEditor.qml

@@ -912,7 +912,9 @@ Item {
                     onDoubleClicked: function(mouse) { root.nodeDoubleClicked(mouse, node) }
 
                     // Update the Node size
-                    onResized: uigraph.resizeNode(node, width, height)
+                    onResized: function(width, height) {
+                        uigraph.resizeNode(node, width, height);
+                    }
 
                     onEntered: uigraph.hoveredNode = node
                     onExited: uigraph.hoveredNode = null
@@ -963,7 +965,7 @@ Item {
                     }
 
                     Behavior on x {
-                        enabled: !nodeRepeater.ongoingDrag
+                        enabled: !nodeRepeater.ongoingDrag && !resizing
                         NumberAnimation { duration: 100 }
                     }
                     Behavior on y {

meshroom/ui/qml/GraphEditor/Node.qml

@@ -25,7 +25,8 @@ Item {
     property bool mainSelected: false
     property bool selected: false
     property bool hovered: false
-    property bool dragging: mouseArea.drag.active || leftDragger.drag.active
+    property bool dragging: mouseArea.drag.active
+    property bool resizing: leftDragger.drag.active
     /// Combined x and y
     property point position: Qt.point(x, y)
     /// Styling