Update

Scripts/Modeling/Edit/ModIt/Class/Collapsible.py

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+##--------------------------------------------------------------------------
+from PySide2 import QtWidgets, QtCore, QtGui
+from maya import cmds as mc
+import maya.mel as mel
+import json
+from ..Qt import QtWidgets, QtCore, QtCompat
+import os
+import maya.cmds as cmds
+from maya import OpenMayaUI as omui
+import mtoa.core as core
+from functools import partial
+
+# Special cases for different Maya versions
+from shiboken2 import wrapInstance
+from PySide2.QtGui import QIcon
+from PySide2.QtWidgets import QWidget
+
+from .. import ModIt_Global
+
+##______________________GLOBAL VAR
+##PATH_SET
+IconPath = ModIt_Global.IconsPathThemeClassic
+PreferencePath = ModIt_Global.PreferencePath
+
+WIN_DISPLAY_SIZE =(json.load(open(PreferencePath + 'WinSize.json',"r"))['VALUE'])
+
+
+
+
+class CollapsibleHeader(QtWidgets.QWidget):
+    COLLAPSED_PIXMAP = QtGui.QPixmap(IconPath + "Arrow_Collapse")
+    EXPANDED_PIXMAP = QtGui.QPixmap(IconPath + "Arrow_Down")
+
+    clicked = QtCore.Signal()
+
+    def __init__(self, text, parent=None):
+        super(CollapsibleHeader, self).__init__(parent)
+
+        self.setAutoFillBackground(True)
+        self.set_background_color(True)
+
+        self.icon_label = QtWidgets.QLabel()
+        self.icon_label.setFixedWidth(self.COLLAPSED_PIXMAP.width())
+
+        self.text_label = QtWidgets.QLabel()
+        self.text_label.setAttribute(QtCore.Qt.WA_TransparentForMouseEvents)
+
+        self.main_layout = QtWidgets.QHBoxLayout(self)
+        self.main_layout.setContentsMargins(4, 4, 4, 0)
+        self.main_layout.setSpacing(12) # DISTANCE du TITRE de la FLECHE
+        self.main_layout.addWidget(self.icon_label)
+        self.main_layout.addWidget(self.text_label)
+
+        self.set_text(text)
+        self.set_expanded(False)
+
+    def set_text(self, text):
+        self.text_label.setText("<b>{0}</b>".format(text))
+        if WIN_DISPLAY_SIZE == 1: #150%
+            self.text_label.setFont(QtGui.QFont('Candara', 6))
+
+    def set_background_color(self, color):
+        if not color:
+            color = QtWidgets.QPushButton().palette().color(QtGui.QPalette.Button)
+
+        palette = self.palette()
+        palette.setColor(QtGui.QPalette.Window, color)
+        self.setPalette(palette)
+
+    def is_expanded(self):
+        return self._expanded
+
+    def set_expanded(self, expanded):
+        self._expanded = expanded
+
+        if (self._expanded):
+            self.icon_label.setPixmap(self.EXPANDED_PIXMAP)
+        else:
+            self.icon_label.setPixmap(self.COLLAPSED_PIXMAP)
+
+    def mousePressEvent(self, event):
+        self.clicked.emit()  # pylint: disable=E1101
+
+
+class CollapsibleWidget(QtWidgets.QWidget):
+    collapsed_signal = QtCore.Signal(bool)
+
+    def __init__(self, text, parent=None):
+        super(CollapsibleWidget, self).__init__(parent)
+
+        self.header_wdg = CollapsibleHeader(text)
+        self.header_wdg.clicked.connect(self.on_header_clicked)  # pylint: disable=E1101
+
+        self.Body_wdg = QtWidgets.QWidget()
+        self.Body_wdg.setContentsMargins(0, 0, 0, 0)
+
+        self.MAIN_lyt = QtWidgets.QVBoxLayout(self.Body_wdg)
+        self.MAIN_lyt.setContentsMargins(0, 0, 0, 0)
+
+
+        self.main_layout = QtWidgets.QVBoxLayout(self)
+        self.main_layout.setContentsMargins(0, 0, 0, 0)
+        self.main_layout.addWidget(self.header_wdg)
+        self.main_layout.addWidget(self.Body_wdg)
+
+
+        self.set_expanded(False)
+
+    def add_widget(self, widget):
+        self.MAIN_lyt.addWidget(widget)
+
+    def add_layout(self, layout):
+        self.MAIN_lyt.addLayout(layout)
+
+    def set_expanded(self, expanded):
+        self.header_wdg.set_expanded(expanded)
+        self.Body_wdg.setVisible(expanded)
+        self.collapsed_signal.emit(expanded)
+
+    def set_header_background_color(self, color):
+        self.header_wdg.set_background_color(color)
+
+    def on_header_clicked(self):
+        self.set_expanded(not self.header_wdg.is_expanded())
+        # TestDialog.btnAction(self)