[Bf-extensions-cvs] SVN commit: /data/svn/bf-extensions [4337] contrib/py/scripts/addons/ object_booleans.py: Boolean Operators add-on: gives boolean tools for selected objects without the need for modifiers

[Campbell Barton]

On Mon, Mar 4, 2013 at 5:02 PM, Jonathan Williamson
<jonathan at montagestudio.org> wrote:
> Revision: 4337
>           http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-extensions&revision=4337
> Author:   carter24
> Date:     2013-03-04 06:02:22 +0000 (Mon, 04 Mar 2013)
> Log Message:
> -----------
> Boolean Operators add-on: gives boolean tools for selected objects without the need for modifiers
>
> Added Paths:
> -----------
>     contrib/py/scripts/addons/object_booleans.py
>
> Added: contrib/py/scripts/addons/object_booleans.py
> ===================================================================
> --- contrib/py/scripts/addons/object_booleans.py                                (rev 0)
> +++ contrib/py/scripts/addons/object_booleans.py        2013-03-04 06:02:22 UTC (rev 4337)
> @@ -0,0 +1,142 @@
> +bl_info = {
> +    "name": "Boolean Operators",
> +    "location": "View3D > Toolbar",
> +    "description": "Add Boolean Operators",
> +    "author": "Jonathan Williamson",
> +    "version": (0,3),
> +    "blender": (2, 6, 6),
> +    "category": "3D View",
> +    }
> +
> +import bpy
> +
> +
> +
> +###------ Create Boolean Operators -------###
> +
> +class boolean(bpy.types.Operator):
> +    """Boolean the currently selected objects"""
> +    bl_idname = "mesh.boolean"
> +    bl_label = "Boolean Operator"
> +    bl_options = {'REGISTER', 'UNDO'}
> +
> +    modOp = bpy.props.StringProperty()
> +
> +    def execute(self, context):
> +
> +        modName = "Bool"
> +
> +        activeObj = context.active_object
> +        selected = context.selected_objects
> +
> +        if selected:
> +            if len(selected) > 1:
> +                if len(selected) == 2:
> +                    for ob in selected:
> +                        if ob != bpy.context.active_object:
> +                            nonActive = ob
> +
> +                    bpy.ops.object.modifier_add(type="BOOLEAN")
> +                    activeMod = bpy.context.active_object.modifiers
> +
> +                    for mod in activeObj.modifiers:
> +                        if mod.type == 'BOOLEAN':
> +                            activeMod[mod.name].operation = self.modOp
> +                            activeMod[mod.name].object = nonActive
> +                            activeMod[mod.name].name = modName
> +
> +                    bpy.ops.object.modifier_apply(apply_as='DATA', modifier=modName)
> +                    bpy.context.scene.objects.active = nonActive
> +                    activeObj.select = False
> +                    bpy.ops.object.delete(use_global=False)
> +                    activeObj.select = True
> +                    bpy.context.scene.objects.active = activeObj
> +                else:
> +                    self.report({'INFO'}, "Select only 2 objects at a time")
> +            else:
> +                self.report({'INFO'}, "Only 1 object selected")
> +        else:
> +            self.report({'INFO'}, "No objects selected")
> +
> +        return {"FINISHED"}
> +
> +
> +###------- Create the Boolean Menu --------###
> +
> +class booleanMenu(bpy.types.Menu):
> +    bl_label = "Boolean Tools"
> +    bl_idname = "object.boolean_menu"
> +
> +    def draw(self, context):
> +        layout = self.layout
> +
> +        union = layout.operator("mesh.boolean", "Union")
> +        union.modOp = 'UNION'
> +
> +        intersect = layout.operator("mesh.boolean", "Intersect")
> +        intersect.modOp = 'INTERSECT'
> +
> +        difference = layout.operator("mesh.boolean", "Difference")
> +        difference.modOp = 'DIFFERENCE'
> +
> +
> +###------- Create the Boolean Toolbar --------###
> +
> +class booleanToolbar(bpy.types.Panel):
> +    bl_label = "Boolean Tools"
> +    bl_idname = "object.boolean_toolbar"
> +    bl_space_type = 'VIEW_3D'
> +    bl_region_type = 'TOOLS'
> +    bl_context = 'objectmode'
> +
> +    def draw(self, context):
> +        layout = self.layout
> +
> +        col = layout.column(align=True)
> +
> +        col.label(text="Operation:", icon="MOD_BOOLEAN")
> +
> +        row = col.row()
> +        union = row.operator("mesh.boolean", "Union")
> +        union.modOp = 'UNION'
> +
> +        intersect = row.operator("mesh.boolean", "Intersect")
> +        intersect.modOp = 'INTERSECT'
> +
> +        difference = row.operator("mesh.boolean", "Difference")
> +        difference.modOp = 'DIFFERENCE'
> +
> +###------- Define the Hotkeys and Register Operators ---------###
> +
> +addon_keymaps = []
> +
> +
> +def register():
> +    bpy.utils.register_class(boolean)
> +    bpy.utils.register_class(booleanMenu)
> +    bpy.utils.register_class(booleanToolbar)
> +
> +    wm = bpy.context.window_manager
> +
> +    # create the boolean menu hotkey
> +    km = wm.keyconfigs.addon.keymaps.new(name='Object Mode', space_type='EMPTY')
> +    kmi = km.keymap_items.new('wm.call_menu', 'B', 'PRESS', ctrl=True, shift=True)
> +    kmi.properties.name = 'object.boolean_menu'
> +
> +
> +    addon_keymaps.append(km)
> +
> +def unregister():
> +    bpy.utils.unregister_class(boolean)
> +    bpy.utils.unregister_class(booleanMenu)
> +    bpy.utils.unregister_class(booleanToolbar)
> +
> +
> +    # remove keymaps when add-on is deactivated
> +    wm = bpy.context.window_manager
> +    for km in addon_keymaps:
> +        wm.keyconfigs.addon.keymaps.remove(km)
> +    del addon_keymaps[:]
> +
> +if __name__ == "__main__":
> +    register()
> \ No newline at end of file

Noticed some strangeness here;

---
'activeMod[mod.name]' can be written as 'mod'
In fact the name activeMod is misleading because this is all modifiers
of active object, looks like you could just not assign this var.

---
Operators take `context` as an arg, no need to reference bpy.context

---
If your referencing members from the context which remain the same in
a loop its nicer to assign a var at the start of the script.
scene = context.scene