IfcText - box alignment interface instead of manually typing text position

realigning box widget

src/blenderbim/blenderbim/bim/module/drawing/prop.py

@@ -38,6 +38,7 @@ from bpy.props import (
     FloatProperty,
     FloatVectorProperty,
     CollectionProperty,
+    BoolVectorProperty
 )
 
 
@@ -381,9 +382,36 @@ class BIMCameraProperties(PropertyGroup):
         return False
 
 
+DEFAULT_BOX_ALIGNMENT = [False]*6 + [True] + [False]*2
+BOX_ALIGNMENT_POSITIONS = [ "top-left", "top-middle", "top-right", "middle-left", "center", "middle-right", "bottom-left", "bottom-middle", "bottom-right"]
+
 class BIMTextProperties(PropertyGroup):
+    def set_box_alignment(self, new_value):
+        markers = new_value.count(True)
+        if not markers:
+            return
+
+        if markers > 1:
+            prev_value = self.get("box_alignment", DEFAULT_BOX_ALIGNMENT)
+            # looking for the first value changed to positive
+            first_changed_value = next( (i for i in range(9) if new_value[i] and new_value[i] != prev_value[i]), None )
+
+            # if nothing have changed we just keep the previous value
+            if first_changed_value is None:
+                return
+            new_value = [False] * 9
+            new_value[first_changed_value] = True
+
+        self["box_alignment"] = new_value
+        position_string = BOX_ALIGNMENT_POSITIONS[ next(i for i in range(9) if new_value[i]) ]
+        self.attributes['BoxAlignment'].set_value( position_string )
+
+    def get_box_alignment(self):
+        return self.get("box_alignment", DEFAULT_BOX_ALIGNMENT)
+
     is_editing: BoolProperty(name="Is Editing", default=False)
     attributes: CollectionProperty(name="Attributes", type=Attribute)
+    test_prop: StringProperty(name="test_prop", default="TEXT")
     value: StringProperty(name="Value", default="TEXT")
     font_size: EnumProperty(
         items=[
@@ -397,6 +425,10 @@ class BIMTextProperties(PropertyGroup):
         update=refreshFontSize,
         name="Font Size",
     )
+    box_alignment: BoolVectorProperty(name="Box alignment", size=9, 
+        set=set_box_alignment,
+        get=get_box_alignment,
+        default=DEFAULT_BOX_ALIGNMENT)
 
 
 class BIMAssignedProductProperties(PropertyGroup):

src/blenderbim/blenderbim/bim/module/drawing/ui.py

@@ -349,7 +349,25 @@ class BIM_PT_text(Panel):
             row = self.layout.row(align=True)
             row.operator("bim.edit_text", icon="CHECKMARK")
             row.operator("bim.disable_editing_text", icon="CANCEL", text="")
-            blenderbim.bim.helper.draw_attributes(props.attributes, self.layout)
+            # skip BoxAlignment since we're going to format it ourselves
+            attributes = [a for a in props.attributes if a.name != 'BoxAlignment']
+            blenderbim.bim.helper.draw_attributes(attributes, self.layout)
+            row = self.layout.row(align=True)
+            row.prop(props, 'font_size')
+
+            # a bit hacky way to align box alignment widget
+            rows = [self.layout.row(align=True) for i in range(3)]
+            for i in range(9):
+                if i % 3 == 0:
+                    split = rows[i//3].split(factor=0.1, align=True)
+                    split.column()
+                split.prop(props, "box_alignment", text="", index=i)
+
+            text_lines = ["Text box alignment:", props.attributes['BoxAlignment'].string_value, '' ]
+            for i in range(3):
+                split = rows[i].split(factor=0.1, align=False)
+                split.column()
+                split.label(text=text_lines[i])
         else:
             row = self.layout.row()
             row.operator("bim.enable_editing_text", icon="GREASEPENCIL")

src/blenderbim/blenderbim/tool/drawing.py

@@ -34,7 +34,7 @@ import blenderbim.bim.module.drawing.sheeter as sheeter
 import blenderbim.bim.module.drawing.scheduler as scheduler
 import blenderbim.bim.module.drawing.annotation as annotation
 import blenderbim.bim.module.drawing.helper as helper
-from blenderbim.bim.module.drawing.prop import get_diagram_scales
+from blenderbim.bim.module.drawing.prop import get_diagram_scales, BOX_ALIGNMENT_POSITIONS
 
 
 class Drawing(blenderbim.core.tool.Drawing):
@@ -457,6 +457,11 @@ class Drawing(blenderbim.core.tool.Drawing):
         props.attributes.clear()
         text = cls.get_text_literal(obj)
         blenderbim.bim.helper.import_attributes2(text, props.attributes)
+        
+        box_alignment_mask = [False] * 9
+        position_string = props.attributes['BoxAlignment'].string_value
+        box_alignment_mask[BOX_ALIGNMENT_POSITIONS.index(position_string)] = True
+        props.box_alignment = box_alignment_mask
 
     @classmethod
     def import_assigned_product(cls, obj):