"""Minimal PySide6 app for testing: representative widget hierarchy."""
from __future__ import annotations
import sys
from PySide6.QtCore import Qt, QThread
from PySide6.QtWidgets import (
QApplication,
QFrame,
QGraphicsEllipseItem,
QGraphicsRectItem,
QGraphicsScene,
QGraphicsTextItem,
QGraphicsView,
QHBoxLayout,
QLabel,
QLineEdit,
QMainWindow,
QPushButton,
QSplitter,
QTabWidget,
QTextEdit,
QTreeWidget,
QTreeWidgetItem,
QVBoxLayout,
QWidget,
)
OFFSCREEN_ARGS = ["-platform", "offscreen"]
def build_sample_app(app: QApplication) -> QMainWindow:
"""Build a representative widget hierarchy for testing."""
win = QMainWindow()
win.setObjectName("MainWindow")
win.resize(800, 600)
central = QWidget()
central.setObjectName("CentralWidget")
win.setCentralWidget(central)
root_layout = QHBoxLayout()
central.setLayout(root_layout)
# --- Left panel: tree widget ---
left = QFrame()
left.setObjectName("LeftPanel")
left_layout = QVBoxLayout()
left.setLayout(left_layout)
tree = QTreeWidget()
tree.setObjectName("ProjectExplorer")
tree.setHeaderLabels(["Name"])
wells = QTreeWidgetItem(tree, ["Wells"])
QTreeWidgetItem(wells, ["SGS-1"])
QTreeWidgetItem(wells, ["SGS-3"])
volumes = QTreeWidgetItem(tree, ["Volumes"])
QTreeWidgetItem(volumes, ["Seismic-A"])
tree.expandAll()
left_layout.addWidget(tree)
# --- Right panel: form + graphics view ---
right = QFrame()
right.setObjectName("RightPanel")
right_layout = QVBoxLayout()
right.setLayout(right_layout)
right_layout.addWidget(QLabel("Property Inspector"))
edit = QLineEdit()
edit.setObjectName("SearchField")
edit.setPlaceholderText("Search...")
right_layout.addWidget(edit)
# Counter label (updated by button click)
counter_label = QLabel("Count: 0")
counter_label.setObjectName("CounterLabel")
right_layout.addWidget(counter_label)
btn = QPushButton("Increment")
btn.setObjectName("IncrementButton")
# Connect: clicking button increments the counter label
_counter = {"value": 0}
def _on_click() -> None:
_counter["value"] += 1
counter_label.setText(f"Count: {_counter['value']}")
btn.clicked.connect(_on_click)
right_layout.addWidget(btn)
# Tab widget
tabs = QTabWidget()
tabs.setObjectName("TestTabWidget")
tabs.addTab(QTextEdit("Editor content"), "Editor")
tabs.addTab(QTextEdit("Console output"), "Console")
tabs.addTab(QLabel("Help text"), "Help")
tabs.setCurrentIndex(0)
right_layout.addWidget(tabs)
# Graphics view with scene
gview = QGraphicsView()
gview.setObjectName("TestGraphicsView")
scene = QGraphicsScene(gview) # parent to gview to prevent GC
scene.setObjectName("TestScene")
scene.addItem(QGraphicsRectItem(0, 0, 100, 50))
scene.addItem(QGraphicsEllipseItem(120, 0, 80, 80))
text_item = QGraphicsTextItem("Hello")
text_item.setPos(0, 60)
scene.addItem(text_item)
gview.setScene(scene)
right_layout.addWidget(gview)
# Layout-less container (for layout inspector testing)
no_layout_container = QWidget()
no_layout_container.setObjectName("NoLayoutContainer")
child_a = QLabel("ChildA", no_layout_container)
child_a.setObjectName("ChildA")
child_a.setGeometry(0, 0, 50, 20)
child_b = QLabel("ChildB", no_layout_container)
child_b.setObjectName("ChildB")
child_b.setGeometry(0, 0, 50, 20) # overlaps with ChildA
right_layout.addWidget(no_layout_container)
# QThread worker (for thread inspector testing)
worker_thread = QThread(win)
worker_thread.setObjectName("WorkerThread")
# Splitter
splitter = QSplitter(Qt.Orientation.Horizontal)
splitter.setObjectName("MainSplitter")
splitter.addWidget(left)
splitter.addWidget(right)
root_layout.addWidget(splitter)
return win
def create_app() -> tuple[QApplication, QMainWindow]:
"""Create app + sample window. Caller must call app.processEvents()."""
args = sys.argv[:] + OFFSCREEN_ARGS
app = QApplication(args)
win = build_sample_app(app)
win.show()
app.processEvents()
return app, win
if __name__ == "__main__":
app, win = create_app()
print("Sample app created. Window visible:", win.isVisible())
sys.exit(0)
