503 lines
17 KiB
Python
503 lines
17 KiB
Python
# ##########################################################
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# FlatCAM: 2D Post-processing for Manufacturing #
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# http://flatcam.org #
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# Author: Juan Pablo Caram (c) #
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# Date: 2/5/2014 #
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# MIT Licence #
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# ##########################################################
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# ##########################################################
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# File modified by: Marius Stanciu #
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# ##########################################################
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import inspect # TODO: For debugging only.
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from AppGUI.ObjectUI import *
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from Common import LoudDict
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from AppGUI.PlotCanvasLegacy import ShapeCollectionLegacy
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import sys
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import gettext
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import AppTranslation as fcTranslate
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import builtins
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fcTranslate.apply_language('strings')
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if '_' not in builtins.__dict__:
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_ = gettext.gettext
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# Interrupts plotting process if FlatCAMObj has been deleted
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class ObjectDeleted(Exception):
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pass
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class ValidationError(Exception):
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def __init__(self, message, errors):
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super().__init__(message)
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self.errors = errors
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class FlatCAMObj(QtCore.QObject):
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"""
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Base type of objects handled in FlatCAM. These become interactive
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in the AppGUI, can be plotted, and their options can be modified
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by the user in their respective forms.
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"""
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# Instance of the application to which these are related.
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# The app should set this value.
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app = None
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# signal to plot a single object
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plot_single_object = QtCore.pyqtSignal()
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def __init__(self, name):
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"""
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Constructor.
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:param name: Name of the object given by the user.
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:return: FlatCAMObj
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"""
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QtCore.QObject.__init__(self)
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# View
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self.ui = None
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self.options = LoudDict(name=name)
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self.options.set_change_callback(self.on_options_change)
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self.form_fields = {}
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# store here the default data for Geometry Data
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self.default_data = {}
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# 2D mode
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# Axes must exist and be attached to canvas.
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self.axes = None
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self.kind = None # Override with proper name
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if self.app.is_legacy is False:
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self.shapes = self.app.plotcanvas.new_shape_group()
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# self.shapes = ShapeCollection(parent=self.app.plotcanvas.view.scene, pool=self.app.pool, layers=2)
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else:
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self.shapes = ShapeCollectionLegacy(obj=self, app=self.app, name=name)
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self.mark_shapes = {}
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self.item = None # Link with project view item
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self.muted_ui = False
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self.deleted = False
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try:
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self._drawing_tolerance = float(self.app.defaults["global_tolerance"]) if \
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self.app.defaults["global_tolerance"] else 0.01
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except ValueError:
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self._drawing_tolerance = 0.01
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self.isHovering = False
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self.notHovering = True
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# Flag to show if a selection shape is drawn
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self.selection_shape_drawn = False
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# self.units = 'IN'
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self.units = self.app.defaults['units']
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self.plot_single_object.connect(self.single_object_plot)
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def __del__(self):
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pass
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def __str__(self):
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return "<FlatCAMObj({:12s}): {:20s}>".format(self.kind, self.options["name"])
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def from_dict(self, d):
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"""
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This supersedes ``from_dict`` in derived classes. Derived classes
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must inherit from FlatCAMObj first, then from derivatives of Geometry.
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``self.options`` is only updated, not overwritten. This ensures that
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options set by the app do not vanish when reading the objects
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from a project file.
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:param d: Dictionary with attributes to set.
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:return: None
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"""
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for attr in self.ser_attrs:
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if attr == 'options':
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self.options.update(d[attr])
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else:
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try:
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setattr(self, attr, d[attr])
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except KeyError:
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log.debug("FlatCAMObj.from_dict() --> KeyError: %s. "
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"Means that we are loading an old project that don't"
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"have all attributes in the latest FlatCAM." % str(attr))
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pass
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def on_options_change(self, key):
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# Update form on programmatically options change
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self.set_form_item(key)
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# Set object visibility
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if key == 'plot':
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self.visible = self.options['plot']
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self.optionChanged.emit(key)
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def set_ui(self, ui):
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self.ui = ui
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self.form_fields = {"name": self.ui.name_entry}
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assert isinstance(self.ui, ObjectUI)
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self.ui.name_entry.returnPressed.connect(self.on_name_activate)
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try:
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# it will raise an exception for those FlatCAM objects that do not build UI with the common elements
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self.ui.offset_button.clicked.connect(self.on_offset_button_click)
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except (TypeError, AttributeError):
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pass
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try:
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self.ui.scale_button.clicked.connect(self.on_scale_button_click)
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except (TypeError, AttributeError):
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pass
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try:
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self.ui.offsetvector_entry.returnPressed.connect(self.on_offset_button_click)
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except (TypeError, AttributeError):
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pass
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# Creates problems on focusOut
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try:
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self.ui.scale_entry.returnPressed.connect(self.on_scale_button_click)
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except (TypeError, AttributeError):
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pass
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# self.ui.skew_button.clicked.connect(self.on_skew_button_click)
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def build_ui(self):
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"""
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Sets up the UI/form for this object. Show the UI in the App.
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:return: None
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"""
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self.muted_ui = True
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log.debug(str(inspect.stack()[1][3]) + "--> FlatCAMObj.build_ui()")
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try:
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# HACK: disconnect the scale entry signal since on focus out event will trigger an undesired scale()
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# it seems that the takewidget() does generate a focus out event for the QDoubleSpinbox ...
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# and reconnect after the takeWidget() is done
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# self.ui.scale_entry.returnPressed.disconnect(self.on_scale_button_click)
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self.app.ui.selected_scroll_area.takeWidget()
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# self.ui.scale_entry.returnPressed.connect(self.on_scale_button_click)
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except Exception as e:
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self.app.log.debug("FlatCAMObj.build_ui() --> Nothing to remove: %s" % str(e))
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self.app.ui.selected_scroll_area.setWidget(self.ui)
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# self.ui.setMinimumWidth(100)
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# self.ui.setMaximumWidth(self.app.ui.selected_tab.sizeHint().width())
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self.muted_ui = False
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def on_name_activate(self, silent=None):
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old_name = copy(self.options["name"])
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new_name = self.ui.name_entry.get_value()
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if new_name != old_name:
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# update the SHELL auto-completer model data
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try:
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self.app.myKeywords.remove(old_name)
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self.app.myKeywords.append(new_name)
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self.app.shell._edit.set_model_data(self.app.myKeywords)
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self.app.ui.code_editor.set_model_data(self.app.myKeywords)
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except Exception:
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log.debug("on_name_activate() --> Could not remove the old object name from auto-completer model list")
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self.options["name"] = self.ui.name_entry.get_value()
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self.default_data["name"] = self.ui.name_entry.get_value()
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self.app.collection.update_view()
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if silent:
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self.app.inform.emit('[success] %s: %s %s: %s' % (
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_("Name changed from"), str(old_name), _("to"), str(new_name)
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)
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)
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def on_offset_button_click(self):
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self.app.defaults.report_usage("obj_on_offset_button")
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self.read_form()
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vector_val = self.ui.offsetvector_entry.get_value()
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def worker_task():
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with self.app.proc_container.new(_("Offsetting...")):
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self.offset(vector_val)
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self.app.proc_container.update_view_text('')
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with self.app.proc_container.new('%s...' % _("Plotting")):
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self.plot()
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self.app.app_obj.object_changed.emit(self)
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self.app.worker_task.emit({'fcn': worker_task, 'params': []})
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def on_scale_button_click(self):
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self.read_form()
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try:
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factor = float(eval(self.ui.scale_entry.get_value()))
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except Exception as e:
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self.app.inform.emit('[ERROR_NOTCL] %s' % _("Scaling could not be executed."))
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log.debug("FlatCAMObj.on_scale_button_click() -- %s" % str(e))
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return
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if type(factor) != float:
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self.app.inform.emit('[ERROR_NOTCL] %s' % _("Scaling could not be executed."))
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# if factor is 1.0 do nothing, there is no point in scaling with a factor of 1.0
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if factor == 1.0:
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self.app.inform.emit('[success] %s' % _("Scale done."))
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return
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log.debug("FlatCAMObj.on_scale_button_click()")
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def worker_task():
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with self.app.proc_container.new(_("Scaling...")):
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self.scale(factor)
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self.app.inform.emit('[success] %s' % _("Scale done."))
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self.app.proc_container.update_view_text('')
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with self.app.proc_container.new('%s...' % _("Plotting")):
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self.plot()
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self.app.app_obj.object_changed.emit(self)
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self.app.worker_task.emit({'fcn': worker_task, 'params': []})
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def on_skew_button_click(self):
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self.app.defaults.report_usage("obj_on_skew_button")
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self.read_form()
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x_angle = self.ui.xangle_entry.get_value()
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y_angle = self.ui.yangle_entry.get_value()
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def worker_task():
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with self.app.proc_container.new(_("Skewing...")):
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self.skew(x_angle, y_angle)
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self.app.proc_container.update_view_text('')
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with self.app.proc_container.new('%s...' % _("Plotting")):
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self.plot()
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self.app.app_obj.object_changed.emit(self)
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self.app.worker_task.emit({'fcn': worker_task, 'params': []})
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def to_form(self):
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"""
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Copies options to the UI form.
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:return: None
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"""
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log.debug(str(inspect.stack()[1][3]) + " --> FlatCAMObj.to_form()")
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for option in self.options:
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try:
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self.set_form_item(option)
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except Exception as err:
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self.app.log.warning("Unexpected error: %s" % str(sys.exc_info()), str(err))
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def read_form(self):
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"""
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Reads form into ``self.options``.
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:return: None
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:rtype: None
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"""
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log.debug(str(inspect.stack()[1][3]) + "--> FlatCAMObj.read_form()")
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for option in self.options:
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try:
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self.read_form_item(option)
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except Exception:
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self.app.log.warning("Unexpected error: %s" % str(sys.exc_info()))
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def set_form_item(self, option):
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"""
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Copies the specified option to the UI form.
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:param option: Name of the option (Key in ``self.options``).
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:type option: str
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:return: None
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"""
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try:
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self.form_fields[option].set_value(self.options[option])
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except KeyError:
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# self.app.log.warn("Tried to set an option or field that does not exist: %s" % option)
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pass
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def read_form_item(self, option):
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"""
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Reads the specified option from the UI form into ``self.options``.
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:param option: Name of the option.
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:type option: str
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:return: None
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"""
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try:
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self.options[option] = self.form_fields[option].get_value()
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except KeyError:
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pass
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# self.app.log.warning("Failed to read option from field: %s" % option)
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def plot(self, kind=None):
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"""
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Plot this object (Extend this method to implement the actual plotting).
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Call this in descendants before doing the plotting.
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:param kind: Used by only some of the FlatCAM objects
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:return: Whether to continue plotting or not depending on the "plot" option. Boolean
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"""
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log.debug(str(inspect.stack()[1][3]) + " --> FlatCAMObj.plot()")
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if self.deleted:
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return False
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self.clear()
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return True
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def single_object_plot(self):
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def plot_task():
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with self.app.proc_container.new('%s...' % _("Plotting")):
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self.plot()
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self.app.app_obj.object_changed.emit(self)
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self.app.worker_task.emit({'fcn': plot_task, 'params': []})
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def serialize(self):
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"""
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Returns a representation of the object as a dictionary so
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it can be later exported as JSON. Override this method.
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:return: Dictionary representing the object
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:rtype: dict
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"""
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return
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def deserialize(self, obj_dict):
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"""
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Re-builds an object from its serialized version.
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:param obj_dict: Dictionary representing a FlatCAMObj
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:type obj_dict: dict
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:return: None
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"""
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return
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def add_shape(self, **kwargs):
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if self.deleted:
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raise ObjectDeleted()
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else:
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key = self.shapes.add(tolerance=self.drawing_tolerance, **kwargs)
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return key
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def add_mark_shape(self, apid, **kwargs):
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if self.deleted:
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raise ObjectDeleted()
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else:
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key = self.mark_shapes[apid].add(tolerance=self.drawing_tolerance, layer=0, **kwargs)
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return key
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def update_filters(self, last_ext, filter_string):
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"""
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Will modify the filter string that is used when saving a file (a list of file extensions) to have the last
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used file extension as the first one in the special string
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:param last_ext: The file extension that was last used to save a file
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:param filter_string: A key in self.app.defaults that holds a string with the filter from QFileDialog
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used when saving a file
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:return: None
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"""
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filters = copy(self.app.defaults[filter_string])
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filter_list = filters.split(';;')
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filter_list_enum_1 = enumerate(filter_list)
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# search for the last element in the filters which should always be "All Files (*.*)"
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last_elem = ''
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for elem in list(filter_list_enum_1):
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if '(*.*)' in elem[1]:
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last_elem = filter_list.pop(elem[0])
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filter_list_enum = enumerate(filter_list)
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for elem in list(filter_list_enum):
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if '.' + last_ext in elem[1]:
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used_ext = filter_list.pop(elem[0])
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# sort the extensions back
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filter_list.sort(key=lambda x: x.rpartition('.')[2])
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# add as a first element the last used extension
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filter_list.insert(0, used_ext)
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# add back the element that should always be the last (All Files)
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filter_list.append(last_elem)
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self.app.defaults[filter_string] = ';;'.join(filter_list)
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return
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@staticmethod
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def poly2rings(poly):
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return [poly.exterior] + [interior for interior in poly.interiors]
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@property
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def visible(self):
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return self.shapes.visible
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@visible.setter
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def visible(self, value, threaded=True):
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log.debug("FlatCAMObj.visible()")
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def worker_task(app_obj):
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self.shapes.visible = value
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if self.app.is_legacy is False:
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# Not all object types has annotations
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try:
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self.annotation.visible = value
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except Exception:
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pass
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if threaded is False:
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worker_task(app_obj=self.app)
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else:
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self.app.worker_task.emit({'fcn': worker_task, 'params': [self]})
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@property
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def drawing_tolerance(self):
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self.units = self.app.defaults['units'].upper()
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tol = self._drawing_tolerance if self.units == 'MM' or not self.units else self._drawing_tolerance / 25.4
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return tol
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@drawing_tolerance.setter
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def drawing_tolerance(self, value):
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self.units = self.app.defaults['units'].upper()
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self._drawing_tolerance = value if self.units == 'MM' or not self.units else value / 25.4
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def clear(self, update=False):
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self.shapes.clear(update)
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# Not all object types has annotations
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try:
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self.annotation.clear(update)
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except AttributeError:
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pass
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def delete(self):
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# Free resources
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del self.ui
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del self.options
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# Set flag
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self.deleted = True |