collapsiblepane 0.10.21

A PySide6 widget for collapsible panels, inspired by JavaFX's TitledPane

CollapsiblePane (PySide6)

The CollapsiblePane is a reusable and customizable PySide6 widget that allows users to toggle the visibility of a content area with smooth animations—perfect for organizing UI sections. It mimics JavaFX’s TitledPane behavior and is designed to cleanly encapsulate widgets within collapsible sections.

Inspired by JavaFX's TitledPane.

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Features

• Expand/Collapse content with animation
• Fully customizable title bar and content styling
• Add or replace content widgets easily
• Clean, layout-friendly design
• Signal support for toggled state

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Usage

import sys

from PySide6.QtWidgets import (
    QMainWindow, QVBoxLayout, QLabel, QPushButton, QLineEdit,
    QComboBox, QCheckBox, QRadioButton, QSlider, QProgressBar,
    QSpinBox, QDateEdit, QTextEdit, QWidget, QApplication
)
from PySide6.QtCore import Qt

from collapsiblepane import CollapsiblePane


class Window(QMainWindow):
    def __init__(self, parent=None):
        super().__init__(parent)
        self.setWindowTitle("Collapsible Pane Demo")

        # Create the collapsible pane
        section = CollapsiblePane("Example Section", 150, self)

        # Customize title bar appearance
        section.set_title_bar_style(background_color="#0066ff", foreground_color="#FFFFFF")
        section.set_content_style(
            background_color="#FFFFFF",
            border_color="#0066FF",
            border_width=2,
            border_style="solid"
        )

        # Create a widget to hold form elements
        content_widget = QWidget()
        content_layout = QVBoxLayout(content_widget)

        content_layout.addWidget(QLabel("Enter your details:"))
        content_layout.addWidget(QLineEdit("Name here..."))
        content_layout.addWidget(QLineEdit("Email address..."))

        content_layout.addWidget(QLabel("Select a category:"))
        combo = QComboBox()
        combo.addItems(["Developer", "Designer", "Security Researcher", "Engineer"])
        content_layout.addWidget(combo)

        content_layout.addWidget(QCheckBox("Subscribe to newsletter"))
        content_layout.addWidget(QRadioButton("Light Mode"))
        content_layout.addWidget(QRadioButton("Dark Mode"))

        content_layout.addWidget(QLabel("Volume:"))
        slider = QSlider(Qt.Horizontal)
        slider.setValue(40)
        content_layout.addWidget(slider)

        progress = QProgressBar()
        progress.setValue(70)
        content_layout.addWidget(progress)

        content_layout.addWidget(QSpinBox())
        content_layout.addWidget(QDateEdit())

        content_layout.addWidget(QLabel("Bio:"))
        text_edit = QTextEdit()
        text_edit.setPlaceholderText("Tell us about yourself...")
        content_layout.addWidget(text_edit)

        content_layout.addWidget(QPushButton("Submit"))

        # Set the content widget
        section.content_widget = content_widget

        # Main layout setup
        container = QWidget()
        main_layout = QVBoxLayout(container)
        main_layout.addWidget(section)

        # Button to clear collapsible pane content
        clear_button = QPushButton("Clear Section", self)
        clear_button.clicked.connect(section.clear_widget)
        main_layout.addWidget(clear_button)

        main_layout.setAlignment(section, Qt.AlignTop)
        self.setCentralWidget(container)


if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = Window()
    window.resize(400, 300)
    window.show()
    sys.exit(app.exec())

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Screenshot

Collapsed	Expanded

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API Overview

Constructor

CollapsiblePane(title="", animation_duration=100)

Properties

• content_widget: QWidget
• is_expanded: bool

Methods

• clear_widget()
• set_content_style(background_color, border_color, ...)
• set_title_bar_style(background_color, foreground_color)

Signals

• toggled(bool) — emits when pane expands or collapses

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Contributions

For contributions please visit Github Repository