Revert "Create Qt backend."

This reverts commit b72c358.

pyslvs_ui/__main__.py

@@ -22,9 +22,9 @@ def main() -> None:
     from platform import system
     from pyslvs_ui.info import ARGUMENTS, logger
     if ARGUMENTS.cmd in {'gui', None}:
-        from pyslvs_ui.qt.QtCore import Qt, qInstallMessageHandler
-        from pyslvs_ui.qt.QtWidgets import QApplication, QSplashScreen
-        from pyslvs_ui.qt.QtGui import QPixmap
+        from qtpy.QtCore import Qt, qInstallMessageHandler
+        from qtpy.QtWidgets import QApplication, QSplashScreen
+        from qtpy.QtGui import QPixmap
         _app = QApplication(argv)
         # Depress Qt warning
         qInstallMessageHandler(lambda _0, _1, _2: None)

pyslvs_ui/entities/edit_link.py

@@ -9,11 +9,11 @@
 
 from re import match
 from typing import List, Union
-from pyslvs_ui.qt.QtCore import Slot, Qt
-from pyslvs_ui.qt.QtWidgets import (
+from qtpy.QtCore import Slot, Qt
+from qtpy.QtWidgets import (
     QDialog, QListWidgetItem, QDialogButtonBox, QColorDialog, QWidget,
 )
-from pyslvs_ui.qt.QtGui import QIcon, QPixmap
+from qtpy.QtGui import QIcon, QPixmap
 from pyslvs import VPoint, VLink, color_names
 from pyslvs_ui.graphics import color_qt, color_icon
 from .utility import set_custom_color, add_custom_color

pyslvs_ui/entities/edit_link_ui.py

@@ -8,7 +8,7 @@
 # run again.  Do not edit this file unless you know what you are doing.
 
 
-from pyslvs_ui.qt import QtCore, QtGui, QtWidgets
+from qtpy import QtCore, QtGui, QtWidgets
 
 
 class Ui_Dialog(object):

pyslvs_ui/entities/edit_point.py

@@ -8,9 +8,9 @@
 __email__ = "pyslvs@gmail.com"
 
 from typing import List, Union
-from pyslvs_ui.qt.QtCore import Slot, Qt
-from pyslvs_ui.qt.QtWidgets import QDialog, QListWidgetItem, QColorDialog, QWidget
-from pyslvs_ui.qt.QtGui import QIcon, QPixmap
+from qtpy.QtCore import Slot, Qt
+from qtpy.QtWidgets import QDialog, QListWidgetItem, QColorDialog, QWidget
+from qtpy.QtGui import QIcon, QPixmap
 from pyslvs import VPoint, VLink, color_names
 from pyslvs_ui.graphics import color_qt, color_icon
 from .utility import set_custom_color, add_custom_color

pyslvs_ui/entities/edit_point_ui.py

@@ -8,7 +8,7 @@
 # run again.  Do not edit this file unless you know what you are doing.
 
 
-from pyslvs_ui.qt import QtCore, QtGui, QtWidgets
+from qtpy import QtCore, QtGui, QtWidgets
 
 
 class Ui_Dialog(object):

pyslvs_ui/entities/relocate_point.py

@@ -11,8 +11,8 @@
 
 from typing import TYPE_CHECKING
 from math import isnan, radians
-from pyslvs_ui.qt.QtCore import Slot
-from pyslvs_ui.qt.QtWidgets import QDialog, QDialogButtonBox
+from qtpy.QtCore import Slot
+from qtpy.QtWidgets import QDialog, QDialogButtonBox
 from pyslvs import plap, pllp, Coord
 from pyslvs_ui.widgets import QRotatableView
 from .relocate_point_ui import Ui_Dialog as SubUiDialog

pyslvs_ui/entities/relocate_point_ui.py

@@ -8,7 +8,7 @@
 # run again.  Do not edit this file unless you know what you are doing.
 
 
-from pyslvs_ui.qt import QtCore, QtGui, QtWidgets
+from qtpy import QtCore, QtGui, QtWidgets
 
 
 class Ui_Dialog(object):

pyslvs_ui/entities/utility.py

@@ -7,8 +7,8 @@
 __license__ = "AGPL"
 __email__ = "pyslvs@gmail.com"
 
-from pyslvs_ui.qt.QtWidgets import QComboBox
-from pyslvs_ui.qt.QtGui import QColor
+from qtpy.QtWidgets import QComboBox
+from qtpy.QtGui import QColor
 from pyslvs_ui.graphics import color_icon
 
 

pyslvs_ui/graphics/canvas.py

@@ -16,15 +16,15 @@
 from enum import auto, unique, IntEnum
 from math import radians, sin, cos, atan2, hypot, isnan
 from functools import reduce
-from pyslvs_ui.qt.QtCore import Slot, Qt, QPointF, QRectF, QSizeF, Signal
-from pyslvs_ui.qt.QtWidgets import QWidget, QSizePolicy
-from pyslvs_ui.qt.QtGui import (
+from qtpy.QtCore import Slot, Qt, QPointF, QRectF, QSizeF, Signal
+from qtpy.QtWidgets import QWidget, QSizePolicy
+from qtpy.QtGui import (
     QPolygonF, QPainter, QBrush, QPen, QColor, QFont,
     QPainterPath, QImage, QPaintEvent, QMouseEvent,
 )
 from pyslvs import VPoint, edges_view, parse_pos
 from pyslvs.graph import Graph
-from pyslvs_ui.qt import QABCMeta
+from pyslvs_ui.qt_patch import QABCMeta
 from .color import color_num, color_qt, target_path_style
 
 _T = TypeVar('_T')

pyslvs_ui/graphics/chart.py

@@ -11,8 +11,8 @@
 __email__ = "pyslvs@gmail.com"
 
 from typing import Sequence, List
-from pyslvs_ui.qt.QtCore import Qt
-from pyslvs_ui.qt.QtWidgets import QWidget, QVBoxLayout, QDialog
+from qtpy.QtCore import Qt
+from qtpy.QtWidgets import QWidget, QVBoxLayout, QDialog
 from matplotlib.axes import Axes
 from matplotlib.figure import Figure
 from matplotlib.backends.backend_qt5agg import (

pyslvs_ui/graphics/color.py

@@ -8,8 +8,8 @@
 __email__ = "pyslvs@gmail.com"
 
 from typing import Tuple, Union
-from pyslvs_ui.qt.QtCore import QSize
-from pyslvs_ui.qt.QtGui import QColor, QIcon, QPixmap
+from qtpy.QtCore import QSize
+from qtpy.QtGui import QColor, QIcon, QPixmap
 from pyslvs import color_names, color_rgb
 
 _Color = Union[str, Tuple[int, int, int], None]

pyslvs_ui/graphics/nx_layout.py

@@ -8,8 +8,8 @@
 __email__ = "pyslvs@gmail.com"
 
 from typing import Mapping, Tuple, Optional
-from pyslvs_ui.qt.QtCore import Qt, QSize, QPointF
-from pyslvs_ui.qt.QtGui import QImage, QPainter, QBrush, QPen, QIcon, QPixmap, QFont
+from qtpy.QtCore import Qt, QSize, QPointF
+from qtpy.QtGui import QImage, QPainter, QBrush, QPen, QIcon, QPixmap, QFont
 from pyslvs import edges_view
 from pyslvs.graph import Graph, external_loop_layout
 from pyslvs_ui.info import logger

pyslvs_ui/info/about.py

@@ -8,8 +8,8 @@
 __email__ = "pyslvs@gmail.com"
 
 from requests import get as get_url
-from pyslvs_ui.qt.QtCore import Qt, QCoreApplication
-from pyslvs_ui.qt.QtWidgets import QDialog, QWidget, QProgressDialog
+from qtpy.QtCore import Qt, QCoreApplication
+from qtpy.QtWidgets import QDialog, QWidget, QProgressDialog
 from pyslvs_ui import __version__
 from .info import SYS_INFO, ARGUMENTS
 from .logging_handler import logger

pyslvs_ui/info/about_ui.py

@@ -8,7 +8,7 @@
 # run again.  Do not edit this file unless you know what you are doing.
 
 
-from pyslvs_ui.qt import QtCore, QtGui, QtWidgets
+from qtpy import QtCore, QtGui, QtWidgets
 
 
 class Ui_Dialog(object):

pyslvs_ui/info/info.py

@@ -20,7 +20,7 @@
 from argparse import ArgumentParser
 from dataclasses import dataclass
 from pyslvs_ui import __version__
-from pyslvs_ui.qt import API
+from pyslvs_ui.qt_patch import API
 
 
 def has_module(name: str) -> bool:

pyslvs_ui/info/logging_handler.py

@@ -16,7 +16,7 @@
 from platform import system
 from logging import (DEBUG, INFO, ERROR, basicConfig, getLogger, Handler,
                      StreamHandler, LogRecord)
-from pyslvs_ui.qt.QtCore import QObject, Signal
+from qtpy.QtCore import QObject, Signal
 from .info import ARGUMENTS, SYS_INFO
 
 logger = getLogger('matplotlib')

pyslvs_ui/io/format_editor.py

@@ -9,10 +9,10 @@
 from typing import (
     TYPE_CHECKING, Tuple, List, Sequence, Dict, Mapping, Union, Any,
 )
-from pyslvs_ui.qt.QtCore import QObject, QFileInfo
-from pyslvs_ui.qt.QtWidgets import QProgressDialog, QMessageBox
+from qtpy.QtCore import QObject, QFileInfo
+from qtpy.QtWidgets import QProgressDialog, QMessageBox
 from pyslvs_ui import __version__
-from pyslvs_ui.qt import QABCMeta
+from pyslvs_ui.qt_patch import QABCMeta
 from pyslvs_ui.info import logger
 from .overview import OverviewDialog
 

pyslvs_ui/io/output_option.py

@@ -12,8 +12,8 @@
 from os.path import isdir, isfile
 from shutil import which
 from subprocess import Popen, DEVNULL
-from pyslvs_ui.qt.QtCore import Slot, Qt, QDir
-from pyslvs_ui.qt.QtWidgets import (
+from qtpy.QtCore import Slot, Qt, QDir
+from qtpy.QtWidgets import (
     QDialog,
     QMessageBox,
     QFileDialog,
@@ -27,9 +27,9 @@
     QSizePolicy,
     QSpacerItem,
 )
-from pyslvs_ui.qt.QtGui import QIcon, QPixmap
+from qtpy.QtGui import QIcon, QPixmap
 from pyslvs import VPoint, VLink
-from pyslvs_ui.qt import QABCMeta
+from pyslvs_ui.qt_patch import QABCMeta
 from .slvs import slvs2_frame, slvs2_part
 from .dxf import DXF_VERSIONS, DXF_VERSIONS_MAP, dxf_frame, dxf_boundary
 from .output_option_ui import Ui_Dialog

pyslvs_ui/io/output_option_ui.py

@@ -8,7 +8,7 @@
 # run again.  Do not edit this file unless you know what you are doing.
 
 
-from pyslvs_ui.qt import QtCore, QtGui, QtWidgets
+from qtpy import QtCore, QtGui, QtWidgets
 
 
 class Ui_Dialog(object):

pyslvs_ui/io/overview.py

@@ -8,9 +8,9 @@
 __email__ = "pyslvs@gmail.com"
 
 from typing import Tuple, Sequence, Mapping, Any
-from pyslvs_ui.qt.QtCore import Qt
-from pyslvs_ui.qt.QtWidgets import QWidget, QDialog, QListWidgetItem
-from pyslvs_ui.qt.QtGui import QPixmap
+from qtpy.QtCore import Qt
+from qtpy.QtWidgets import QWidget, QDialog, QListWidgetItem
+from qtpy.QtGui import QPixmap
 from .overview_ui import Ui_Dialog
 
 _Paths = Sequence[Sequence[Tuple[float, float]]]

pyslvs_ui/io/overview_ui.py

@@ -8,7 +8,7 @@
 # run again.  Do not edit this file unless you know what you are doing.
 
 
-from pyslvs_ui.qt import QtCore, QtGui, QtWidgets
+from qtpy import QtCore, QtGui, QtWidgets
 
 
 class Ui_Dialog(object):

pyslvs_ui/io/preference_ui.py

@@ -8,7 +8,7 @@
 # run again.  Do not edit this file unless you know what you are doing.
 
 
-from pyslvs_ui.qt import QtCore, QtGui, QtWidgets
+from qtpy import QtCore, QtGui, QtWidgets
 
 
 class Ui_Dialog(object):

pyslvs_ui/io/preferences.py

@@ -9,8 +9,8 @@
 
 from typing import Optional
 from dataclasses import fields, Field
-from pyslvs_ui.qt.QtCore import Slot
-from pyslvs_ui.qt.QtWidgets import (
+from qtpy.QtCore import Slot
+from qtpy.QtWidgets import (
     QDialog,
     QLineEdit,
     QSpinBox,
@@ -20,7 +20,7 @@
     QDialogButtonBox,
     QMessageBox,
 )
-from pyslvs_ui.qt.QtGui import QCloseEvent
+from qtpy.QtGui import QCloseEvent
 from pyslvs_ui.info import KERNELS, Kernel
 from pyslvs_ui.widgets import Preferences, MainWindowBase
 from .format_editor import ProjectFormat

pyslvs_ui/io/project.py

@@ -12,18 +12,18 @@
 
 from typing import TYPE_CHECKING, Mapping, Union
 from os.path import join
-from pyslvs_ui.qt.QtCore import Slot, QFileInfo, QDateTime
-from pyslvs_ui.qt.QtWidgets import (
+from qtpy.QtCore import Slot, QFileInfo, QDateTime
+from qtpy.QtWidgets import (
     QUndoView,
     QVBoxLayout,
     QWidget,
     QInputDialog,
     QMessageBox,
 )
-from pyslvs_ui.qt.QtGui import QPixmap, QIcon
+from qtpy.QtGui import QPixmap, QIcon
 from pyslvs import example_list, all_examples
 from pyslvs_ui.info import logger, size_format
-from pyslvs_ui.qt import qt_image_format
+from pyslvs_ui.qt_patch import qt_image_format
 from .project_yaml import YamlEditor
 from .project_pickle import PickleEditor
 from .project_ui import Ui_Form

pyslvs_ui/io/project_pickle.py

@@ -8,7 +8,7 @@
 __email__ = "pyslvs@gmail.com"
 
 from pickle import load, dump, UnpicklingError, HIGHEST_PROTOCOL
-from pyslvs_ui.qt.QtWidgets import QMessageBox
+from qtpy.QtWidgets import QMessageBox
 from .format_editor import FormatEditor
 
 

pyslvs_ui/io/project_ui.py

@@ -8,7 +8,7 @@
 # run again.  Do not edit this file unless you know what you are doing.
 
 
-from pyslvs_ui.qt import QtCore, QtGui, QtWidgets
+from qtpy import QtCore, QtGui, QtWidgets
 
 
 class Ui_Form(object):

pyslvs_ui/io/project_yaml.py

@@ -13,7 +13,7 @@
 from yaml import safe_load, safe_dump
 from yaml.error import YAMLError
 from yaml.representer import SafeRepresenter
-from pyslvs_ui.qt.QtWidgets import QMessageBox
+from qtpy.QtWidgets import QMessageBox
 from .format_editor import FormatEditor, ProjectFormat
 
 # Add a patch for numpy numbers

pyslvs_ui/io/script.py

@@ -13,8 +13,8 @@
 from qrcode import make
 from qrcode.image.base import BaseImage
 from numpy import full, ndarray, uint8
-from pyslvs_ui.qt.QtCore import Slot, Qt
-from pyslvs_ui.qt.QtWidgets import (
+from qtpy.QtCore import Slot, Qt
+from qtpy.QtWidgets import (
     QApplication,
     QDialog,
     QDialogButtonBox,
@@ -25,7 +25,7 @@
     QLineEdit,
     QSizePolicy,
 )
-from pyslvs_ui.qt.QtGui import QIcon, QPixmap, QImage, QWheelEvent, QFont
+from qtpy.QtGui import QIcon, QPixmap, QImage, QWheelEvent, QFont
 from .script_ui import Ui_Dialog
 
 if TYPE_CHECKING:

pyslvs_ui/io/script_ui.py

@@ -8,7 +8,7 @@
 # run again.  Do not edit this file unless you know what you are doing.
 
 
-from pyslvs_ui.qt import QtCore, QtGui, QtWidgets
+from qtpy import QtCore, QtGui, QtWidgets
 
 
 class Ui_Dialog(object):

pyslvs_ui/main_window/__init__.py

@@ -20,9 +20,9 @@
 __email__ = "pyslvs@gmail.com"
 
 from typing import Tuple, Sequence
-from pyslvs_ui.qt.QtCore import Slot
-from pyslvs_ui.qt.QtWidgets import QMessageBox, QInputDialog
-from pyslvs_ui.qt.QtGui import QTextCursor, QCloseEvent
+from qtpy.QtCore import Slot
+from qtpy.QtWidgets import QMessageBox, QInputDialog
+from qtpy.QtGui import QTextCursor, QCloseEvent
 from pyslvs_ui.info import XStream, logger
 from .io import IOMethodInterface
 

pyslvs_ui/main_window/actions.py

@@ -9,8 +9,8 @@
 
 from typing import cast, Sequence, Callable, Union
 from abc import ABC
-from pyslvs_ui.qt.QtCore import Slot, QPoint
-from pyslvs_ui.qt.QtWidgets import QAction, QApplication, QTableWidget
+from qtpy.QtCore import Slot, QPoint
+from qtpy.QtWidgets import QAction, QApplication, QTableWidget
 from pyslvs import VLink
 from pyslvs_ui.graphics import BaseCanvas
 from pyslvs_ui.widgets import EditPointTable, EditLinkTable, Preferences

pyslvs_ui/main_window/entities.py

@@ -15,8 +15,8 @@
 from collections import Counter
 from math import sin, cos, radians, isnan
 from numpy import array
-from pyslvs_ui.qt.QtCore import Slot
-from pyslvs_ui.qt.QtWidgets import (
+from qtpy.QtCore import Slot
+from qtpy.QtWidgets import (
     QDialogButtonBox,
     QDialog,
     QDoubleSpinBox,