Python GUI Touch Panel Development: Framework Comparison and Touch Interface Design for AV Control
Touch panel interfaces have become the cornerstone of modern AV control systems, providing intuitive user experiences for complex audiovisual environments. Python offers several powerful GUI frameworks capable of creating professional-grade touch interfaces. This comprehensive guide explores the three leading Python GUI frameworks—Tkinter, PyQt, and Kivy—and provides practical implementation strategies for AV control applications.
Table of Contents
- Introduction to Python GUI Frameworks
- Framework Comparison Overview
- Tkinter for AV Touch Panels
- PyQt/PySide for Professional Interfaces
- Kivy for Modern Touch Applications
- Touch Event Handling
- Performance Optimization Strategies
- Cross-Platform Deployment
- Best Practices for AV Touch Panels
- Real-World Implementation Examples
Introduction to Python GUI Frameworks
Modern AV installations demand sophisticated control interfaces that are both functional and visually appealing. Python's GUI frameworks provide the foundation for creating these interfaces, each with distinct advantages for different use cases.
Requirements for AV Touch Panels
Essential Features:
- Responsive Touch Input: Low-latency touch event processing
- Visual Feedback: Immediate response to user interactions
- Custom Widgets: Specialized controls for AV equipment
- Real-Time Updates: Dynamic content updates without blocking the UI
- Hardware Integration: Support for various display resolutions and orientations
- Professional Appearance: Modern, polished interface design
Choosing the Right Framework
The choice of GUI framework depends on several factors:
python
[object Object],
framework_comparison = {
,[object Object],: {
,[object Object],: ,[object Object],,
,[object Object],: ,[object Object],,
,[object Object],: ,[object Object],,
,[object Object],: ,[object Object],,
,[object Object],: ,[object Object],
},
,[object Object],: {
,[object Object],: ,[object Object],,
,[object Object],: ,[object Object],,
,[object Object],: ,[object Object],,
,[object Object],: ,[object Object],,
,[object Object],: ,[object Object],
},
,[object Object],: {
,[object Object],: ,[object Object],,
,[object Object],: ,[object Object],,
,[object Object],: ,[object Object],,
,[object Object],: ,[object Object],,
,[object Object],: ,[object Object],
}
}Framework Comparison Overview
Let's examine each framework's strengths and limitations for AV touch panel development:
Tkinter: The Standard Choice
Advantages:
- Built into Python standard library
- Simple learning curve
- Excellent documentation
- Cross-platform compatibility
- Minimal dependencies
Limitations:
- Basic styling options
- Limited touch gesture support
- Older visual appearance
- Fewer advanced widgets
PyQt/PySide: The Professional Solution
Advantages:
- Rich widget library
- Excellent touch support
- Professional appearance
- Extensive customization
- Signal/slot architecture
Limitations:
- Licensing considerations (PyQt)
- Larger learning curve
- Increased complexity
- Additional dependencies
Kivy: The Modern Touch Framework
Advantages:
- Built for touch interfaces
- Modern graphics engine
- Multi-touch support
- Animation framework
- Mobile platform support
Limitations:
- Steeper learning curve
- Different programming paradigm
- Complex deployment
- Smaller community
Tkinter for AV Touch Panels
Tkinter remains a viable choice for simple AV control panels, especially when deployment simplicity is crucial.
Basic Touch Panel Implementation
python
[object Object], tkinter ,[object Object], tk
,[object Object], tkinter ,[object Object], ttk
,[object Object], threading
,[object Object], time
,[object Object], ,[object Object],:
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.root = tk.Tk()
,[object Object],.root.title(,[object Object],)
,[object Object],.root.geometry(,[object Object],)
,[object Object],.root.configure(bg=,[object Object],)
,[object Object],
,[object Object],.root.overrideredirect(,[object Object],)
,[object Object],
,[object Object],.setup_touch_events()
,[object Object],
,[object Object],.create_interface()
,[object Object],
,[object Object],.devices = {}
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],
,[object Object],.root.bind(,[object Object],, ,[object Object],.on_touch_down)
,[object Object],.root.bind(,[object Object],, ,[object Object],.on_touch_up)
,[object Object],.root.bind(,[object Object],, ,[object Object],.on_touch_move)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],
main_frame = tk.Frame(,[object Object],.root, bg=,[object Object],)
main_frame.pack(fill=tk.BOTH, expand=,[object Object],, padx=,[object Object],, pady=,[object Object],)
,[object Object],
title_label = tk.Label(
main_frame,
text=,[object Object],,
font=(,[object Object],, ,[object Object],, ,[object Object],),
fg=,[object Object],,
bg=,[object Object],
)
title_label.pack(pady=(,[object Object],, ,[object Object],))
,[object Object],
,[object Object],.create_lighting_controls(main_frame)
,[object Object],.create_av_controls(main_frame)
,[object Object],.create_climate_controls(main_frame)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
lighting_frame = tk.LabelFrame(
parent,
text=,[object Object],,
font=(,[object Object],, ,[object Object],, ,[object Object],),
fg=,[object Object],,
bg=,[object Object],,
bd=,[object Object],,
relief=tk.GROOVE
)
lighting_frame.pack(fill=tk.X, pady=(,[object Object],, ,[object Object],))
,[object Object],
lighting_buttons = [
(,[object Object],, ,[object Object],.lights_all_on, ,[object Object],),
(,[object Object],, ,[object Object],.lights_presentation, ,[object Object],),
(,[object Object],, ,[object Object],.lights_dim, ,[object Object],),
(,[object Object],, ,[object Object],.lights_all_off, ,[object Object],)
]
button_frame = tk.Frame(lighting_frame, bg=,[object Object],)
button_frame.pack(fill=tk.X, padx=,[object Object],, pady=,[object Object],)
,[object Object], i, (text, command, color) ,[object Object], ,[object Object],(lighting_buttons):
btn = tk.Button(
button_frame,
text=text,
command=command,
font=(,[object Object],, ,[object Object],, ,[object Object],),
bg=color,
fg=,[object Object],,
relief=tk.FLAT,
bd=,[object Object],,
pady=,[object Object],,
cursor=,[object Object],
)
btn.grid(row=,[object Object],, column=i, padx=,[object Object],, sticky=,[object Object],)
button_frame.columnconfigure(i, weight=,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
av_frame = tk.LabelFrame(
parent,
text=,[object Object],,
font=(,[object Object],, ,[object Object],, ,[object Object],),
fg=,[object Object],,
bg=,[object Object],,
bd=,[object Object],,
relief=tk.GROOVE
)
av_frame.pack(fill=tk.X, pady=(,[object Object],, ,[object Object],))
,[object Object],
source_frame = tk.Frame(av_frame, bg=,[object Object],)
source_frame.pack(fill=tk.X, padx=,[object Object],, pady=,[object Object],)
tk.Label(
source_frame,
text=,[object Object],,
font=(,[object Object],, ,[object Object],),
fg=,[object Object],,
bg=,[object Object],
).pack(side=tk.LEFT)
,[object Object],.source_var = tk.StringVar(value=,[object Object],)
source_menu = ttk.Combobox(
source_frame,
textvariable=,[object Object],.source_var,
values=[,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],],
font=(,[object Object],, ,[object Object],),
state=,[object Object],
)
source_menu.pack(side=tk.LEFT, padx=(,[object Object],, ,[object Object],))
source_menu.bind(,[object Object],, ,[object Object],.source_changed)
,[object Object],
volume_frame = tk.Frame(av_frame, bg=,[object Object],)
volume_frame.pack(fill=tk.X, padx=,[object Object],, pady=,[object Object],)
tk.Label(
volume_frame,
text=,[object Object],,
font=(,[object Object],, ,[object Object],),
fg=,[object Object],,
bg=,[object Object],
).pack(side=tk.LEFT)
,[object Object],.volume_var = tk.IntVar(value=,[object Object],)
volume_scale = tk.Scale(
volume_frame,
from_=,[object Object],,
to=,[object Object],,
orient=tk.HORIZONTAL,
variable=,[object Object],.volume_var,
command=,[object Object],.volume_changed,
font=(,[object Object],, ,[object Object],),
fg=,[object Object],,
bg=,[object Object],,
highlightthickness=,[object Object],,
troughcolor=,[object Object],
)
volume_scale.pack(side=tk.LEFT, fill=tk.X, expand=,[object Object],, padx=(,[object Object],, ,[object Object],))
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
climate_frame = tk.LabelFrame(
parent,
text=,[object Object],,
font=(,[object Object],, ,[object Object],, ,[object Object],),
fg=,[object Object],,
bg=,[object Object],,
bd=,[object Object],,
relief=tk.GROOVE
)
climate_frame.pack(fill=tk.X)
,[object Object],
temp_frame = tk.Frame(climate_frame, bg=,[object Object],)
temp_frame.pack(fill=tk.X, padx=,[object Object],, pady=,[object Object],)
,[object Object],
temp_down_btn = tk.Button(
temp_frame,
text=,[object Object],,
command=,[object Object],.temp_down,
font=(,[object Object],, ,[object Object],, ,[object Object],),
bg=,[object Object],,
fg=,[object Object],,
relief=tk.FLAT,
bd=,[object Object],,
width=,[object Object],,
cursor=,[object Object],
)
temp_down_btn.pack(side=tk.LEFT)
,[object Object],
,[object Object],.temp_var = tk.StringVar(value=,[object Object],)
temp_label = tk.Label(
temp_frame,
textvariable=,[object Object],.temp_var,
font=(,[object Object],, ,[object Object],, ,[object Object],),
fg=,[object Object],,
bg=,[object Object],
)
temp_label.pack(side=tk.LEFT, expand=,[object Object],)
,[object Object],
temp_up_btn = tk.Button(
temp_frame,
text=,[object Object],,
command=,[object Object],.temp_up,
font=(,[object Object],, ,[object Object],, ,[object Object],),
bg=,[object Object],,
fg=,[object Object],,
relief=tk.FLAT,
bd=,[object Object],,
width=,[object Object],,
cursor=,[object Object],
)
temp_up_btn.pack(side=tk.RIGHT)
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
source = ,[object Object],.source_var.get()
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
current = ,[object Object],(,[object Object],.temp_var.get().replace(,[object Object],, ,[object Object],))
new_temp = ,[object Object],(current + ,[object Object],, ,[object Object],)
,[object Object],.temp_var.,[object Object],(,[object Object],)
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
current = ,[object Object],(,[object Object],.temp_var.get().replace(,[object Object],, ,[object Object],))
new_temp = ,[object Object],(current - ,[object Object],, ,[object Object],)
,[object Object],.temp_var.,[object Object],(,[object Object],)
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],
,[object Object],(,[object Object],)
,[object Object],
,[object Object],.show_feedback(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
feedback_label = tk.Label(
,[object Object],.root,
text=message,
font=(,[object Object],, ,[object Object],),
fg=,[object Object],,
bg=,[object Object],,
relief=tk.FLAT,
bd=,[object Object],
)
feedback_label.place(relx=,[object Object],, rely=,[object Object],, anchor=tk.CENTER)
,[object Object],
,[object Object],.root.after(,[object Object],, feedback_label.destroy)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],.root.mainloop()
,[object Object],
,[object Object], ,[object Object],:
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.touch_start = ,[object Object],
,[object Object],.touch_end = ,[object Object],
,[object Object],.min_swipe_distance = ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], ,[object Object], start_pos ,[object Object], ,[object Object], end_pos:
,[object Object], ,[object Object],
dx = end_pos[,[object Object],] - start_pos[,[object Object],]
dy = end_pos[,[object Object],] - start_pos[,[object Object],]
distance = (dx**,[object Object], + dy**,[object Object],)**,[object Object],
,[object Object], distance < ,[object Object],.min_swipe_distance:
,[object Object], ,[object Object],
,[object Object], ,[object Object],(dx) > ,[object Object],(dy):
,[object Object], ,[object Object], ,[object Object], dx > ,[object Object], ,[object Object], ,[object Object],
,[object Object],:
,[object Object], ,[object Object], ,[object Object], dy > ,[object Object], ,[object Object], ,[object Object],
,[object Object],
,[object Object], __name__ == ,[object Object],:
app = AVTouchPanel()
app.run()Enhanced Touch Event Handling
python
[object Object], tkinter ,[object Object], tk
,[object Object], tkinter ,[object Object], ttk
,[object Object], time
,[object Object], ,[object Object],:
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.widget = widget
,[object Object],.touch_start_time = ,[object Object],
,[object Object],.touch_start_pos = ,[object Object],
,[object Object],.long_press_threshold = ,[object Object], ,[object Object],
,[object Object],.is_long_press = ,[object Object],
,[object Object],
,[object Object],.widget.bind(,[object Object],, ,[object Object],.on_touch_start)
,[object Object],.widget.bind(,[object Object],, ,[object Object],.on_touch_end)
,[object Object],.widget.bind(,[object Object],, ,[object Object],.on_touch_move)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],.touch_start_time = time.time()
,[object Object],.touch_start_pos = (event.x, event.y)
,[object Object],.is_long_press = ,[object Object],
,[object Object],
,[object Object],.widget.after(
,[object Object],(,[object Object],.long_press_threshold * ,[object Object],),
,[object Object],.check_long_press
)
,[object Object],
,[object Object],.widget.configure(relief=tk.SUNKEN)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], ,[object Object],.touch_start_time:
touch_duration = time.time() - ,[object Object],.touch_start_time
,[object Object], ,[object Object], ,[object Object],.is_long_press ,[object Object], touch_duration < ,[object Object],.long_press_threshold:
,[object Object],.handle_tap(event)
,[object Object],
,[object Object],.widget.configure(relief=tk.RAISED)
,[object Object],.touch_start_time = ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], ,[object Object],.touch_start_pos:
dx = event.x - ,[object Object],.touch_start_pos[,[object Object],]
dy = event.y - ,[object Object],.touch_start_pos[,[object Object],]
distance = (dx**,[object Object], + dy**,[object Object],)**,[object Object],
,[object Object],
,[object Object], distance > ,[object Object],:
,[object Object],.is_long_press = ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], ,[object Object],.touch_start_time ,[object Object], ,[object Object], ,[object Object],.is_long_press:
current_time = time.time()
,[object Object], current_time - ,[object Object],.touch_start_time >= ,[object Object],.long_press_threshold:
,[object Object],.is_long_press = ,[object Object],
,[object Object],.handle_long_press()
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],(,[object Object],)PyQt/PySide for Professional Interfaces
PyQt and PySide offer the most comprehensive toolkit for creating professional AV touch panels with advanced styling and touch support.
Professional Touch Panel with PyQt
python
[object Object], sys
,[object Object], PyQt5.QtWidgets ,[object Object], *
,[object Object], PyQt5.QtCore ,[object Object], *
,[object Object], PyQt5.QtGui ,[object Object], *
,[object Object], json
,[object Object], ,[object Object],(,[object Object],):
,[object Object], ,[object Object],(,[object Object],):
,[object Object],().__init__()
,[object Object],.setWindowTitle(,[object Object],)
,[object Object],.setGeometry(,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],)
,[object Object],
,[object Object],.setWindowFlags(Qt.FramelessWindowHint)
,[object Object],
,[object Object],.setStyleSheet(,[object Object],.get_stylesheet())
,[object Object],
,[object Object],.init_ui()
,[object Object],
,[object Object],.device_controllers = {}
,[object Object],
,[object Object],.touch_handler = TouchGestureHandler(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
central_widget = QWidget()
,[object Object],.setCentralWidget(central_widget)
,[object Object],
main_layout = QVBoxLayout()
central_widget.setLayout(main_layout)
,[object Object],
title_label = QLabel(,[object Object],)
title_label.setObjectName(,[object Object],)
title_label.setAlignment(Qt.AlignCenter)
main_layout.addWidget(title_label)
,[object Object],
sections_layout = QHBoxLayout()
main_layout.addLayout(sections_layout)
,[object Object],
left_column = QVBoxLayout()
sections_layout.addLayout(left_column)
,[object Object],
right_column = QVBoxLayout()
sections_layout.addLayout(right_column)
,[object Object],
left_column.addWidget(,[object Object],.create_lighting_section())
left_column.addWidget(,[object Object],.create_av_section())
right_column.addWidget(,[object Object],.create_display_section())
right_column.addWidget(,[object Object],.create_climate_section())
,[object Object],
,[object Object],.status_bar = ,[object Object],.statusBar()
,[object Object],.status_bar.showMessage(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
group = QGroupBox(,[object Object],)
layout = QVBoxLayout()
group.setLayout(layout)
,[object Object],
presets = [
(,[object Object],, ,[object Object],, ,[object Object],.lights_all_on),
(,[object Object],, ,[object Object],, ,[object Object],.lights_presentation),
(,[object Object],, ,[object Object],, ,[object Object],.lights_dim),
(,[object Object],, ,[object Object],, ,[object Object],.lights_all_off)
]
,[object Object], text, style, callback ,[object Object], presets:
btn = QPushButton(text)
,[object Object], style != ,[object Object],:
btn.setProperty(,[object Object],, style)
btn.clicked.connect(callback)
layout.addWidget(btn)
,[object Object],
dimmer_layout = QHBoxLayout()
layout.addLayout(dimmer_layout)
dimmer_layout.addWidget(QLabel(,[object Object],))
,[object Object],.dimmer_slider = QSlider(Qt.Horizontal)
,[object Object],.dimmer_slider.setRange(,[object Object],, ,[object Object],)
,[object Object],.dimmer_slider.setValue(,[object Object],)
,[object Object],.dimmer_slider.valueChanged.connect(,[object Object],.dimmer_changed)
dimmer_layout.addWidget(,[object Object],.dimmer_slider)
,[object Object],.dimmer_label = QLabel(,[object Object],)
dimmer_layout.addWidget(,[object Object],.dimmer_label)
,[object Object], group
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
group = QGroupBox(,[object Object],)
layout = QVBoxLayout()
group.setLayout(layout)
,[object Object],
source_layout = QHBoxLayout()
layout.addLayout(source_layout)
source_layout.addWidget(QLabel(,[object Object],))
,[object Object],.source_combo = QComboBox()
,[object Object],.source_combo.addItems([
,[object Object],, ,[object Object],, ,[object Object],,
,[object Object],, ,[object Object],
])
,[object Object],.source_combo.currentTextChanged.connect(,[object Object],.source_changed)
source_layout.addWidget(,[object Object],.source_combo)
,[object Object],
volume_layout = QHBoxLayout()
layout.addLayout(volume_layout)
volume_layout.addWidget(QLabel(,[object Object],))
,[object Object],.volume_slider = QSlider(Qt.Horizontal)
,[object Object],.volume_slider.setRange(,[object Object],, ,[object Object],)
,[object Object],.volume_slider.setValue(,[object Object],)
,[object Object],.volume_slider.valueChanged.connect(,[object Object],.volume_changed)
volume_layout.addWidget(,[object Object],.volume_slider)
,[object Object],.volume_label = QLabel(,[object Object],)
volume_layout.addWidget(,[object Object],.volume_label)
,[object Object],
,[object Object],.mute_btn = QPushButton(,[object Object],)
,[object Object],.mute_btn.setProperty(,[object Object],, ,[object Object],)
,[object Object],.mute_btn.setCheckable(,[object Object],)
,[object Object],.mute_btn.toggled.connect(,[object Object],.mute_toggled)
layout.addWidget(,[object Object],.mute_btn)
,[object Object], group
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
group = QGroupBox(,[object Object],)
layout = QVBoxLayout()
group.setLayout(layout)
,[object Object],
power_layout = QHBoxLayout()
layout.addLayout(power_layout)
,[object Object],.display_on_btn = QPushButton(,[object Object],)
,[object Object],.display_on_btn.setProperty(,[object Object],, ,[object Object],)
,[object Object],.display_on_btn.clicked.connect(,[object Object],.display_on)
power_layout.addWidget(,[object Object],.display_on_btn)
,[object Object],.display_off_btn = QPushButton(,[object Object],)
,[object Object],.display_off_btn.setProperty(,[object Object],, ,[object Object],)
,[object Object],.display_off_btn.clicked.connect(,[object Object],.display_off)
power_layout.addWidget(,[object Object],.display_off_btn)
,[object Object],
,[object Object],.blank_btn = QPushButton(,[object Object],)
,[object Object],.blank_btn.setCheckable(,[object Object],)
,[object Object],.blank_btn.toggled.connect(,[object Object],.blank_toggled)
layout.addWidget(,[object Object],.blank_btn)
,[object Object], group
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
group = QGroupBox(,[object Object],)
layout = QVBoxLayout()
group.setLayout(layout)
,[object Object],
temp_layout = QHBoxLayout()
layout.addLayout(temp_layout)
,[object Object],.temp_down_btn = QPushButton(,[object Object],)
,[object Object],.temp_down_btn.clicked.connect(,[object Object],.temp_down)
temp_layout.addWidget(,[object Object],.temp_down_btn)
,[object Object],.temp_label = QLabel(,[object Object],)
,[object Object],.temp_label.setAlignment(Qt.AlignCenter)
,[object Object],.temp_label.setStyleSheet(,[object Object],)
temp_layout.addWidget(,[object Object],.temp_label)
,[object Object],.temp_up_btn = QPushButton(,[object Object],)
,[object Object],.temp_up_btn.clicked.connect(,[object Object],.temp_up)
temp_layout.addWidget(,[object Object],.temp_up_btn)
,[object Object],
fan_layout = QHBoxLayout()
layout.addLayout(fan_layout)
fan_layout.addWidget(QLabel(,[object Object],))
,[object Object],.fan_combo = QComboBox()
,[object Object],.fan_combo.addItems([,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],])
,[object Object],.fan_combo.currentTextChanged.connect(,[object Object],.fan_changed)
fan_layout.addWidget(,[object Object],.fan_combo)
,[object Object], group
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],.show_status(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],.show_status(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],.show_status(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],.show_status(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.dimmer_label.setText(,[object Object],)
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],.show_status(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.volume_label.setText(,[object Object],(value))
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object], checked:
,[object Object],.mute_btn.setText(,[object Object],)
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],.show_status(,[object Object],)
,[object Object],:
,[object Object],.mute_btn.setText(,[object Object],)
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],.show_status(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],.show_status(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],.show_status(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object], checked:
,[object Object],.blank_btn.setText(,[object Object],)
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],.show_status(,[object Object],)
,[object Object],:
,[object Object],.blank_btn.setText(,[object Object],)
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],.show_status(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
current = ,[object Object],(,[object Object],.temp_label.text().replace(,[object Object],, ,[object Object],))
new_temp = ,[object Object],(current + ,[object Object],, ,[object Object],)
,[object Object],.temp_label.setText(,[object Object],)
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
current = ,[object Object],(,[object Object],.temp_label.text().replace(,[object Object],, ,[object Object],))
new_temp = ,[object Object],(current - ,[object Object],, ,[object Object],)
,[object Object],.temp_label.setText(,[object Object],)
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],.show_status(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],
,[object Object],(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],.status_bar.showMessage(message, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
gesture_detected = pyqtSignal(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],().__init__(parent)
,[object Object],.parent = parent
,[object Object],.touch_points = {}
,[object Object],
parent.installEventFilter(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], event.,[object Object],() == QEvent.TouchBegin:
,[object Object], ,[object Object],.handle_touch_begin(event)
,[object Object], event.,[object Object],() == QEvent.TouchUpdate:
,[object Object], ,[object Object],.handle_touch_update(event)
,[object Object], event.,[object Object],() == QEvent.TouchEnd:
,[object Object], ,[object Object],.handle_touch_end(event)
,[object Object], ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], touch_point ,[object Object], event.touchPoints():
,[object Object],.touch_points[touch_point.,[object Object],()] = {
,[object Object],: touch_point.pos(),
,[object Object],: touch_point.pos(),
,[object Object],: QTime.currentTime()
}
,[object Object], ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], touch_point ,[object Object], event.touchPoints():
,[object Object], touch_point.,[object Object],() ,[object Object], ,[object Object],.touch_points:
,[object Object],.touch_points[touch_point.,[object Object],()][,[object Object],] = touch_point.pos()
,[object Object], ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], touch_point ,[object Object], event.touchPoints():
,[object Object], touch_point.,[object Object],() ,[object Object], ,[object Object],.touch_points:
gesture = ,[object Object],.analyze_gesture(,[object Object],.touch_points[touch_point.,[object Object],()])
,[object Object], gesture:
,[object Object],.gesture_detected.emit(gesture[,[object Object],], gesture[,[object Object],])
,[object Object], ,[object Object],.touch_points[touch_point.,[object Object],()]
,[object Object], ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
start_pos = touch_data[,[object Object],]
end_pos = touch_data[,[object Object],]
duration = touch_data[,[object Object],].msecsTo(QTime.currentTime())
dx = end_pos.x() - start_pos.x()
dy = end_pos.y() - start_pos.y()
distance = (dx**,[object Object], + dy**,[object Object],)**,[object Object],
,[object Object],
,[object Object], distance < ,[object Object], ,[object Object], duration < ,[object Object],:
,[object Object], {
,[object Object],: ,[object Object],,
,[object Object],: {,[object Object],: end_pos}
}
,[object Object],
,[object Object], distance < ,[object Object], ,[object Object], duration > ,[object Object],:
,[object Object], {
,[object Object],: ,[object Object],,
,[object Object],: {,[object Object],: end_pos, ,[object Object],: duration}
}
,[object Object],
,[object Object], distance > ,[object Object],:
,[object Object], ,[object Object],(dx) > ,[object Object],(dy):
direction = ,[object Object], ,[object Object], dx > ,[object Object], ,[object Object], ,[object Object],
,[object Object],:
direction = ,[object Object], ,[object Object], dy > ,[object Object], ,[object Object], ,[object Object],
,[object Object], {
,[object Object],: ,[object Object],,
,[object Object],: {
,[object Object],: direction,
,[object Object],: distance,
,[object Object],: start_pos,
,[object Object],: end_pos
}
}
,[object Object], ,[object Object],
,[object Object],
,[object Object], ,[object Object],():
app = QApplication(sys.argv)
,[object Object],
app.setAttribute(Qt.AA_SynthesizeTouchForUnhandledMouseEvents, ,[object Object],)
,[object Object],
app.setStyle(,[object Object],)
window = AVControlPanel()
window.show()
sys.exit(app.exec_())
,[object Object], __name__ == ,[object Object],:
main()Kivy for Modern Touch Applications
Kivy excels at creating modern, touch-first interfaces with fluid animations and gesture support.
Advanced Kivy Touch Panel
python
[object Object], kivy.app ,[object Object], App
,[object Object], kivy.uix.boxlayout ,[object Object], BoxLayout
,[object Object], kivy.uix.gridlayout ,[object Object], GridLayout
,[object Object], kivy.uix.button ,[object Object], Button
,[object Object], kivy.uix.label ,[object Object], Label
,[object Object], kivy.uix.slider ,[object Object], Slider
,[object Object], kivy.uix.spinner ,[object Object], Spinner
,[object Object], kivy.uix.switch ,[object Object], Switch
,[object Object], kivy.clock ,[object Object], Clock
,[object Object], kivy.animation ,[object Object], Animation
,[object Object], kivy.graphics ,[object Object], Color, Rectangle
,[object Object], kivy.core.window ,[object Object], Window
,[object Object], threading
,[object Object], time
,[object Object],
Window.size = (,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],().__init__(**kwargs)
,[object Object],.original_size = ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], ,[object Object], ,[object Object],.original_size:
,[object Object],.original_size = ,[object Object],.size[:]
,[object Object],
anim = Animation(
size=(,[object Object],.width * ,[object Object],, ,[object Object],.height * ,[object Object],),
duration=,[object Object],
)
anim.start(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], ,[object Object],.original_size:
,[object Object],
anim = Animation(
size=,[object Object],.original_size,
duration=,[object Object],
)
anim.start(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],().__init__(**kwargs)
,[object Object],.orientation = ,[object Object],
,[object Object],.spacing = ,[object Object],
,[object Object],.padding = ,[object Object],
,[object Object],
title = Label(
text=,[object Object],,
size_hint_y=,[object Object],,
height=,[object Object],,
font_size=,[object Object],,
bold=,[object Object],
)
,[object Object],.add_widget(title)
,[object Object],
button_layout = GridLayout(cols=,[object Object],, spacing=,[object Object],, size_hint_y=,[object Object],, height=,[object Object],)
presets = [
(,[object Object],, ,[object Object],.lights_all_on, [,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],]),
(,[object Object],, ,[object Object],.lights_presentation, [,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],]),
(,[object Object],, ,[object Object],.lights_dim, [,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],]),
(,[object Object],, ,[object Object],.lights_all_off, [,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],])
]
,[object Object], text, callback, color ,[object Object], presets:
btn = AnimatedButton(
text=text,
background_color=color,
font_size=,[object Object],,
bold=,[object Object],
)
btn.bind(on_release=callback)
button_layout.add_widget(btn)
,[object Object],.add_widget(button_layout)
,[object Object],
dimmer_layout = BoxLayout(orientation=,[object Object],, size_hint_y=,[object Object],, height=,[object Object],)
dimmer_layout.add_widget(Label(text=,[object Object],, size_hint_x=,[object Object],, width=,[object Object],))
,[object Object],.dimmer_slider = Slider(,[object Object],=,[object Object],, ,[object Object],=,[object Object],, value=,[object Object],, step=,[object Object],)
,[object Object],.dimmer_slider.bind(value=,[object Object],.dimmer_changed)
dimmer_layout.add_widget(,[object Object],.dimmer_slider)
,[object Object],.dimmer_label = Label(text=,[object Object],, size_hint_x=,[object Object],, width=,[object Object],)
dimmer_layout.add_widget(,[object Object],.dimmer_label)
,[object Object],.add_widget(dimmer_layout)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],.show_feedback(,[object Object],, [,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],])
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],.show_feedback(,[object Object],, [,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],])
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],.show_feedback(,[object Object],, [,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],])
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],.show_feedback(,[object Object],, [,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],])
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.dimmer_label.text = ,[object Object],
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
feedback = Label(
text=message,
size_hint=(,[object Object],, ,[object Object],),
size=(,[object Object],, ,[object Object],),
pos=(,[object Object],.center_x - ,[object Object],, ,[object Object],.top - ,[object Object],),
color=color
)
,[object Object],
,[object Object], ,[object Object],.parent:
,[object Object],.parent.add_widget(feedback)
,[object Object],
anim = Animation(opacity=,[object Object],, duration=,[object Object],)
anim.bind(on_complete=,[object Object], *args: ,[object Object],.parent.remove_widget(feedback))
anim.start(feedback)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],().__init__(**kwargs)
,[object Object],.orientation = ,[object Object],
,[object Object],.spacing = ,[object Object],
,[object Object],.padding = ,[object Object],
,[object Object],
title = Label(
text=,[object Object],,
size_hint_y=,[object Object],,
height=,[object Object],,
font_size=,[object Object],,
bold=,[object Object],
)
,[object Object],.add_widget(title)
,[object Object],
source_layout = BoxLayout(orientation=,[object Object],, size_hint_y=,[object Object],, height=,[object Object],)
source_layout.add_widget(Label(text=,[object Object],, size_hint_x=,[object Object],, width=,[object Object],))
,[object Object],.source_spinner = Spinner(
text=,[object Object],,
values=[,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],],
size_hint_x=,[object Object],
)
,[object Object],.source_spinner.bind(text=,[object Object],.source_changed)
source_layout.add_widget(,[object Object],.source_spinner)
,[object Object],.add_widget(source_layout)
,[object Object],
volume_layout = BoxLayout(orientation=,[object Object],, size_hint_y=,[object Object],, height=,[object Object],)
volume_layout.add_widget(Label(text=,[object Object],, size_hint_x=,[object Object],, width=,[object Object],))
,[object Object],.volume_slider = Slider(,[object Object],=,[object Object],, ,[object Object],=,[object Object],, value=,[object Object],, step=,[object Object],)
,[object Object],.volume_slider.bind(value=,[object Object],.volume_changed)
volume_layout.add_widget(,[object Object],.volume_slider)
,[object Object],.volume_label = Label(text=,[object Object],, size_hint_x=,[object Object],, width=,[object Object],)
volume_layout.add_widget(,[object Object],.volume_label)
,[object Object],.add_widget(volume_layout)
,[object Object],
mute_layout = BoxLayout(orientation=,[object Object],, size_hint_y=,[object Object],, height=,[object Object],)
mute_layout.add_widget(Label(text=,[object Object],, size_hint_x=,[object Object],, width=,[object Object],))
,[object Object],.mute_switch = Switch(active=,[object Object],)
,[object Object],.mute_switch.bind(active=,[object Object],.mute_changed)
mute_layout.add_widget(,[object Object],.mute_switch)
,[object Object],.add_widget(mute_layout)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.volume_label.text = ,[object Object],(,[object Object],(value))
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],().__init__(**kwargs)
,[object Object],.orientation = ,[object Object],
,[object Object],.spacing = ,[object Object],
,[object Object],.padding = ,[object Object],
,[object Object],.current_temp = ,[object Object],
,[object Object],
title = Label(
text=,[object Object],,
size_hint_y=,[object Object],,
height=,[object Object],,
font_size=,[object Object],,
bold=,[object Object],
)
,[object Object],.add_widget(title)
,[object Object],
temp_layout = BoxLayout(orientation=,[object Object],, size_hint_y=,[object Object],, height=,[object Object],)
temp_down_btn = AnimatedButton(
text=,[object Object],,
size_hint_x=,[object Object],,
width=,[object Object],,
font_size=,[object Object],,
background_color=[,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],]
)
temp_down_btn.bind(on_release=,[object Object],.temp_down)
temp_layout.add_widget(temp_down_btn)
,[object Object],.temp_label = Label(
text=,[object Object],,
font_size=,[object Object],,
bold=,[object Object],
)
temp_layout.add_widget(,[object Object],.temp_label)
temp_up_btn = AnimatedButton(
text=,[object Object],,
size_hint_x=,[object Object],,
width=,[object Object],,
font_size=,[object Object],,
background_color=[,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],]
)
temp_up_btn.bind(on_release=,[object Object],.temp_up)
temp_layout.add_widget(temp_up_btn)
,[object Object],.add_widget(temp_layout)
,[object Object],
fan_layout = BoxLayout(orientation=,[object Object],, size_hint_y=,[object Object],, height=,[object Object],)
fan_layout.add_widget(Label(text=,[object Object],, size_hint_x=,[object Object],, width=,[object Object],))
,[object Object],.fan_spinner = Spinner(
text=,[object Object],,
values=[,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],]
)
,[object Object],.fan_spinner.bind(text=,[object Object],.fan_changed)
fan_layout.add_widget(,[object Object],.fan_spinner)
,[object Object],.add_widget(fan_layout)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.current_temp = ,[object Object],(,[object Object],.current_temp + ,[object Object],, ,[object Object],)
,[object Object],.temp_label.text = ,[object Object],
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],
anim = Animation(color=[,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],], duration=,[object Object],) + Animation(color=[,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],], duration=,[object Object],)
anim.start(,[object Object],.temp_label)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.current_temp = ,[object Object],(,[object Object],.current_temp - ,[object Object],, ,[object Object],)
,[object Object],.temp_label.text = ,[object Object],
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object],
anim = Animation(color=[,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],], duration=,[object Object],) + Animation(color=[,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],], duration=,[object Object],)
anim.start(,[object Object],.temp_label)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.send_command(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],(,[object Object],)
,[object Object], ,[object Object],:
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.widget = widget
,[object Object],.touch_start = ,[object Object],
,[object Object],.touch_time = ,[object Object],
,[object Object],.min_swipe_distance = ,[object Object],
,[object Object],.long_press_time = ,[object Object],
,[object Object],
widget.bind(on_touch_down=,[object Object],.on_touch_down)
widget.bind(on_touch_up=,[object Object],.on_touch_up)
widget.bind(on_touch_move=,[object Object],.on_touch_move)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.touch_start = touch.pos
,[object Object],.touch_time = time.time()
,[object Object], ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object], ,[object Object],.touch_start ,[object Object], ,[object Object],.touch_time:
duration = time.time() - ,[object Object],.touch_time
distance = ,[object Object],.calculate_distance(,[object Object],.touch_start, touch.pos)
,[object Object], duration < ,[object Object], ,[object Object], distance < ,[object Object],:
,[object Object],.handle_tap(touch.pos)
,[object Object], duration > ,[object Object],.long_press_time ,[object Object], distance < ,[object Object],:
,[object Object],.handle_long_press(touch.pos)
,[object Object], distance > ,[object Object],.min_swipe_distance:
direction = ,[object Object],.calculate_swipe_direction(,[object Object],.touch_start, touch.pos)
,[object Object],.handle_swipe(direction, ,[object Object],.touch_start, touch.pos)
,[object Object],.touch_start = ,[object Object],
,[object Object],.touch_time = ,[object Object],
,[object Object], ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object], ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object], ((pos2[,[object Object],] - pos1[,[object Object],]) ** ,[object Object], + (pos2[,[object Object],] - pos1[,[object Object],]) ** ,[object Object],) ** ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
dx = end_pos[,[object Object],] - start_pos[,[object Object],]
dy = end_pos[,[object Object],] - start_pos[,[object Object],]
,[object Object], ,[object Object],(dx) > ,[object Object],(dy):
,[object Object], ,[object Object], ,[object Object], dx > ,[object Object], ,[object Object], ,[object Object],
,[object Object],:
,[object Object], ,[object Object], ,[object Object], dy > ,[object Object], ,[object Object], ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
main_layout = BoxLayout(orientation=,[object Object],, padding=,[object Object],, spacing=,[object Object],)
,[object Object],
title = Label(
text=,[object Object],,
size_hint_y=,[object Object],,
height=,[object Object],,
font_size=,[object Object],,
bold=,[object Object],,
color=[,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],]
)
main_layout.add_widget(title)
,[object Object],
sections_layout = BoxLayout(orientation=,[object Object],, spacing=,[object Object],)
,[object Object],
left_column = BoxLayout(orientation=,[object Object],, spacing=,[object Object],)
left_column.add_widget(LightingSection())
,[object Object],
right_column = BoxLayout(orientation=,[object Object],, spacing=,[object Object],)
right_column.add_widget(AVSection())
right_column.add_widget(ClimateSection())
sections_layout.add_widget(left_column)
sections_layout.add_widget(right_column)
main_layout.add_widget(sections_layout)
,[object Object],
gesture_detector = TouchGestureDetector(main_layout)
,[object Object],
,[object Object], main_layout.canvas.before:
Color(,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],) ,[object Object],
,[object Object],.rect = Rectangle(size=main_layout.size, pos=main_layout.pos)
main_layout.bind(size=,[object Object],.update_rect, pos=,[object Object],.update_rect)
,[object Object], main_layout
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.rect.pos = instance.pos
,[object Object],.rect.size = instance.size
,[object Object],
,[object Object], __name__ == ,[object Object],:
AVControlPanelApp().run()Touch Event Handling
Effective touch event handling is crucial for responsive AV interfaces. Here's a comprehensive approach:
Universal Touch Event Manager
python
[object Object], time
,[object Object], threading
,[object Object], typing ,[object Object], ,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],, ,[object Object],
,[object Object], dataclasses ,[object Object], dataclass
,[object Object], enum ,[object Object], Enum
,[object Object], ,[object Object],(,[object Object],):
TAP = ,[object Object],
DOUBLE_TAP = ,[object Object],
LONG_PRESS = ,[object Object],
SWIPE_LEFT = ,[object Object],
SWIPE_RIGHT = ,[object Object],
SWIPE_UP = ,[object Object],
SWIPE_DOWN = ,[object Object],
PINCH = ,[object Object],
ZOOM = ,[object Object],
,[object Object],
,[object Object], ,[object Object],:
x: ,[object Object],
y: ,[object Object],
timestamp: ,[object Object],
pressure: ,[object Object], = ,[object Object],
,[object Object],
,[object Object], ,[object Object],:
gesture_type: GestureType
start_pos: TouchPoint
end_pos: ,[object Object],[TouchPoint] = ,[object Object],
duration: ,[object Object], = ,[object Object],
distance: ,[object Object], = ,[object Object],
velocity: ,[object Object], = ,[object Object],
data: ,[object Object], = ,[object Object],
,[object Object], ,[object Object],:
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.gesture_handlers: ,[object Object],[GestureType, ,[object Object],[,[object Object],]] = {}
,[object Object],.active_touches: ,[object Object],[,[object Object],, TouchPoint] = {}
,[object Object],.gesture_config = {
,[object Object],: ,[object Object],,
,[object Object],: ,[object Object],,
,[object Object],: ,[object Object],,
,[object Object],: ,[object Object],,
,[object Object],: ,[object Object],,
,[object Object],: ,[object Object],
}
,[object Object],.last_tap_time = ,[object Object],
,[object Object],.last_tap_pos = ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], gesture_type ,[object Object], ,[object Object], ,[object Object],.gesture_handlers:
,[object Object],.gesture_handlers[gesture_type] = []
,[object Object],.gesture_handlers[gesture_type].append(handler)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], gesture_type ,[object Object], ,[object Object],.gesture_handlers:
,[object Object],.gesture_handlers[gesture_type].remove(handler)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
touch_point = TouchPoint(x, y, time.time(), pressure)
,[object Object],.active_touches[touch_id] = touch_point
,[object Object],
threading.Timer(
,[object Object],.gesture_config[,[object Object],],
,[object Object],._check_long_press,
args=(touch_id, touch_point)
).start()
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], touch_id ,[object Object], ,[object Object], ,[object Object],.active_touches:
,[object Object],
start_touch = ,[object Object],.active_touches[touch_id]
current_time = time.time()
,[object Object],
current_touch = TouchPoint(x, y, current_time, pressure)
,[object Object],
,[object Object], ,[object Object],(,[object Object],.active_touches) >= ,[object Object],:
,[object Object],._handle_multi_touch()
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], touch_id ,[object Object], ,[object Object], ,[object Object],.active_touches:
,[object Object],
start_touch = ,[object Object],.active_touches[touch_id]
end_touch = TouchPoint(x, y, time.time())
,[object Object],
duration = end_touch.timestamp - start_touch.timestamp
distance = ,[object Object],._calculate_distance(start_touch, end_touch)
velocity = distance / duration ,[object Object], duration > ,[object Object], ,[object Object], ,[object Object],
,[object Object],
gesture = ,[object Object],._analyze_gesture(start_touch, end_touch, duration, distance, velocity)
,[object Object], gesture:
,[object Object],._emit_gesture(gesture)
,[object Object],
,[object Object], ,[object Object],.active_touches[touch_id]
,[object Object], ,[object Object],(,[object Object],) -> ,[object Object],:
,[object Object],
dx = point2.x - point1.x
dy = point2.y - point1.y
,[object Object], (dx * dx + dy * dy) ** ,[object Object],
,[object Object], ,[object Object],(,[object Object],) -> ,[object Object],[GestureEvent]:
,[object Object],
,[object Object],
,[object Object], (duration < ,[object Object],.gesture_config[,[object Object],] ,[object Object],
distance < ,[object Object],.gesture_config[,[object Object],]):
,[object Object],
,[object Object], (,[object Object],.last_tap_time ,[object Object],
end.timestamp - ,[object Object],.last_tap_time < ,[object Object],.gesture_config[,[object Object],] ,[object Object],
,[object Object],.last_tap_pos ,[object Object],
,[object Object],._calculate_distance(TouchPoint(,[object Object],.last_tap_pos[,[object Object],], ,[object Object],.last_tap_pos[,[object Object],], ,[object Object],), end) < ,[object Object],.gesture_config[,[object Object],]):
,[object Object],.last_tap_time = ,[object Object], ,[object Object],
,[object Object], GestureEvent(
GestureType.DOUBLE_TAP,
start,
end,
duration,
distance,
velocity
)
,[object Object],:
,[object Object],.last_tap_time = end.timestamp
,[object Object],.last_tap_pos = (end.x, end.y)
,[object Object], GestureEvent(
GestureType.TAP,
start,
end,
duration,
distance,
velocity
)
,[object Object],
,[object Object], (distance > ,[object Object],.gesture_config[,[object Object],] ,[object Object],
duration < ,[object Object],.gesture_config[,[object Object],]):
dx = end.x - start.x
dy = end.y - start.y
,[object Object],
,[object Object], ,[object Object],(dx) > ,[object Object],(dy):
gesture_type = GestureType.SWIPE_RIGHT ,[object Object], dx > ,[object Object], ,[object Object], GestureType.SWIPE_LEFT
,[object Object],:
gesture_type = GestureType.SWIPE_DOWN ,[object Object], dy > ,[object Object], ,[object Object], GestureType.SWIPE_UP
,[object Object], GestureEvent(
gesture_type,
start,
end,
duration,
distance,
velocity
)
,[object Object], ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], (touch_id ,[object Object], ,[object Object],.active_touches ,[object Object],
time.time() - original_touch.timestamp >= ,[object Object],.gesture_config[,[object Object],]):
current_touch = ,[object Object],.active_touches[touch_id]
distance = ,[object Object],._calculate_distance(original_touch, current_touch)
,[object Object], distance < ,[object Object],.gesture_config[,[object Object],]:
gesture = GestureEvent(
GestureType.LONG_PRESS,
original_touch,
current_touch,
time.time() - original_touch.timestamp,
distance,
,[object Object],
)
,[object Object],._emit_gesture(gesture)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], ,[object Object],(,[object Object],.active_touches) == ,[object Object],:
touches = ,[object Object],(,[object Object],.active_touches.values())
current_distance = ,[object Object],._calculate_distance(touches[,[object Object],], touches[,[object Object],])
,[object Object],
,[object Object], ,[object Object], ,[object Object],(,[object Object],, ,[object Object],):
,[object Object],._initial_pinch_distance = current_distance
,[object Object],:
ratio = current_distance / ,[object Object],._initial_pinch_distance
,[object Object], ratio > ,[object Object],: ,[object Object],
gesture = GestureEvent(
GestureType.ZOOM,
touches[,[object Object],],
touches[,[object Object],],
data={,[object Object],: ratio}
)
,[object Object],._emit_gesture(gesture)
,[object Object], ratio < ,[object Object],: ,[object Object],
gesture = GestureEvent(
GestureType.PINCH,
touches[,[object Object],],
touches[,[object Object],],
data={,[object Object],: ratio}
)
,[object Object],._emit_gesture(gesture)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], gesture.gesture_type ,[object Object], ,[object Object],.gesture_handlers:
,[object Object], handler ,[object Object], ,[object Object],.gesture_handlers[gesture.gesture_type]:
,[object Object],:
handler(gesture)
,[object Object], Exception ,[object Object], e:
,[object Object],(,[object Object],)
,[object Object],
,[object Object], ,[object Object],:
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.av_system = av_system
,[object Object],.touch_manager = TouchEventManager()
,[object Object],._setup_gestures()
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],.touch_manager.register_handler(GestureType.TAP, ,[object Object],.handle_tap)
,[object Object],.touch_manager.register_handler(GestureType.DOUBLE_TAP, ,[object Object],.handle_double_tap)
,[object Object],.touch_manager.register_handler(GestureType.LONG_PRESS, ,[object Object],.handle_long_press)
,[object Object],.touch_manager.register_handler(GestureType.SWIPE_LEFT, ,[object Object],.handle_swipe_left)
,[object Object],.touch_manager.register_handler(GestureType.SWIPE_RIGHT, ,[object Object],.handle_swipe_right)
,[object Object],.touch_manager.register_handler(GestureType.SWIPE_UP, ,[object Object],.handle_swipe_up)
,[object Object],.touch_manager.register_handler(GestureType.SWIPE_DOWN, ,[object Object],.handle_swipe_down)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],(,[object Object],)
,[object Object],.av_system.toggle_display_power()
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],(,[object Object],)
,[object Object],.av_system.show_context_menu(gesture.start_pos.x, gesture.start_pos.y)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],(,[object Object],)
,[object Object],.av_system.previous_source()
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],(,[object Object],)
,[object Object],.av_system.next_source()
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],(,[object Object],)
,[object Object],.av_system.volume_up()
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],(,[object Object],)
,[object Object],.av_system.volume_down()Performance Optimization Strategies
Optimizing GUI performance is crucial for responsive touch interfaces in AV applications.
Performance Optimization Techniques
python
[object Object], threading
,[object Object], queue
,[object Object], time
,[object Object], concurrent.futures ,[object Object], ThreadPoolExecutor
,[object Object], weakref
,[object Object], ,[object Object],:
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.thread_pool = ThreadPoolExecutor(max_workers=,[object Object],)
,[object Object],.command_queue = queue.Queue()
,[object Object],.ui_update_queue = queue.Queue()
,[object Object],.command_thread = threading.Thread(target=,[object Object],._process_commands, daemon=,[object Object],)
,[object Object],.command_thread.start()
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], ,[object Object],:
,[object Object],:
command = ,[object Object],.command_queue.get(timeout=,[object Object],)
,[object Object], command ,[object Object], ,[object Object],:
,[object Object],
,[object Object],
command[,[object Object],](*command[,[object Object],], **command[,[object Object],])
,[object Object],
,[object Object],.command_queue.task_done()
,[object Object], queue.Empty:
,[object Object],
,[object Object], Exception ,[object Object], e:
,[object Object],(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
command = {
,[object Object],: function,
,[object Object],: args,
,[object Object],: kwargs
}
,[object Object],.command_queue.put(command)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], update ,[object Object], updates:
,[object Object],.ui_update_queue.put(update)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
last_call_time = [,[object Object],]
,[object Object], ,[object Object],(,[object Object],):
current_time = time.time()
,[object Object], current_time - last_call_time[,[object Object],] >= delay:
last_call_time[,[object Object],] = current_time
,[object Object], func(*args, **kwargs)
,[object Object], debounced_func
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
last_execution = [,[object Object],]
,[object Object], ,[object Object],(,[object Object],):
current_time = time.time()
,[object Object], current_time - last_execution[,[object Object],] >= interval:
last_execution[,[object Object],] = current_time
,[object Object], func(*args, **kwargs)
,[object Object], throttled_func
,[object Object], ,[object Object],:
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.widget_class = widget_class
,[object Object],.available_widgets = []
,[object Object],.in_use_widgets = ,[object Object],()
,[object Object],
,[object Object], _ ,[object Object], ,[object Object],(initial_size):
widget = widget_class()
,[object Object],.available_widgets.append(widget)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], ,[object Object],.available_widgets:
widget = ,[object Object],.available_widgets.pop()
,[object Object],:
widget = ,[object Object],.widget_class()
,[object Object],.in_use_widgets.add(widget)
,[object Object], widget
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], widget ,[object Object], ,[object Object],.in_use_widgets:
,[object Object],.in_use_widgets.remove(widget)
,[object Object],
widget.reset()
,[object Object],.available_widgets.append(widget)
,[object Object], ,[object Object],:
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.loaded_components = {}
,[object Object],.load_callbacks = {}
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],.load_callbacks[name] = load_callback
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], name ,[object Object], ,[object Object], ,[object Object],.loaded_components:
,[object Object], name ,[object Object], ,[object Object],.load_callbacks:
,[object Object],.loaded_components[name] = ,[object Object],.load_callbacks[name]()
,[object Object],:
,[object Object], ValueError(,[object Object],)
,[object Object], ,[object Object],.loaded_components[name]
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], name ,[object Object], ,[object Object], ,[object Object],.loaded_components ,[object Object], name ,[object Object], ,[object Object],.load_callbacks:
threading.Thread(
target=,[object Object],: ,[object Object],.get_component(name),
daemon=,[object Object],
).start()
,[object Object],
,[object Object], ,[object Object],:
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.weak_references = {}
,[object Object],.cleanup_callbacks = []
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],.cleanup_callbacks.append(callback)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],
,[object Object], callback ,[object Object], ,[object Object],.cleanup_callbacks:
,[object Object],:
callback()
,[object Object], Exception ,[object Object], e:
,[object Object],(,[object Object],)
,[object Object],
,[object Object],.weak_references.clear()
,[object Object],
,[object Object], gc
gc.collect()
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],.weak_references[name] = weakref.ref(obj)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], name ,[object Object], ,[object Object],.weak_references:
ref = ,[object Object],.weak_references[name]
obj = ref()
,[object Object], obj ,[object Object], ,[object Object], ,[object Object],:
,[object Object], obj
,[object Object],:
,[object Object],
,[object Object], ,[object Object],.weak_references[name]
,[object Object], ,[object Object],
,[object Object],
,[object Object], ,[object Object],:
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.optimizer = PerformanceOptimizer()
,[object Object],.lazy_loader = LazyLoader()
,[object Object],.memory_manager = MemoryManager()
,[object Object],
,[object Object],.update_volume_display = ,[object Object],.optimizer.debounce(
,[object Object],._update_volume_display,
delay=,[object Object],
)
,[object Object],
,[object Object],.send_volume_command = ,[object Object],.optimizer.throttle(
,[object Object],._send_volume_command,
interval=,[object Object],
)
,[object Object],
,[object Object],.lazy_loader.register_component(,[object Object],, ,[object Object],._create_settings_panel)
,[object Object],.lazy_loader.register_component(,[object Object],, ,[object Object],._create_diagnostics_panel)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],
,[object Object],.update_volume_display(value)
,[object Object],
,[object Object],.send_volume_command(value)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],
,[object Object],(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],
,[object Object],.optimizer.execute_async(,[object Object],._send_command, ,[object Object],, value)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],
time.sleep(,[object Object],)
,[object Object],(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
settings_panel = ,[object Object],.lazy_loader.get_component(,[object Object],)
settings_panel.show()
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],(,[object Object],)
,[object Object],
,[object Object], ,[object Object], ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],(,[object Object],)
,[object Object],
,[object Object], ,[object Object], ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],.memory_manager.cleanup()
,[object Object],.optimizer.thread_pool.shutdown(wait=,[object Object],)Cross-Platform Deployment
Deploying Python GUI applications across different platforms requires careful consideration of dependencies and packaging.
Universal Deployment Strategy
python
[object Object], sys
,[object Object], os
,[object Object], platform
,[object Object], subprocess
,[object Object], pathlib ,[object Object], Path
,[object Object], ,[object Object],:
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.app_name = app_name
,[object Object],.app_version = app_version
,[object Object],.platform = platform.system().lower()
,[object Object],.arch = platform.machine()
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object], ,[object Object],.platform == ,[object Object],:
,[object Object], ,[object Object],.create_windows_package()
,[object Object], ,[object Object],.platform == ,[object Object],:
,[object Object], ,[object Object],.create_macos_package()
,[object Object], ,[object Object],.platform == ,[object Object],:
,[object Object], ,[object Object],.create_linux_package()
,[object Object],:
,[object Object], ValueError(,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],(,[object Object],)
,[object Object],
spec_content = ,[object Object],
,[object Object],
,[object Object], ,[object Object],(,[object Object],, ,[object Object],) ,[object Object], f:
f.write(spec_content)
,[object Object],
subprocess.run([
,[object Object],,
,[object Object],,
,[object Object],
])
,[object Object],
,[object Object],.create_windows_installer()
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
nsis_script = ,[object Object],
,[object Object], ,[object Object],(,[object Object],, ,[object Object],) ,[object Object], f:
f.write(nsis_script)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],(,[object Object],)
,[object Object],
app_bundle = ,[object Object],
contents_dir = ,[object Object],
macos_dir = ,[object Object],
resources_dir = ,[object Object],
os.makedirs(macos_dir, exist_ok=,[object Object],)
os.makedirs(resources_dir, exist_ok=,[object Object],)
,[object Object],
info_plist = ,[object Object],
,[object Object], ,[object Object],(,[object Object],, ,[object Object],) ,[object Object], f:
f.write(info_plist)
,[object Object],
subprocess.run([
,[object Object],,
,[object Object],,
,[object Object],,
,[object Object],, ,[object Object],.app_name,
,[object Object],, ,[object Object],,
,[object Object],
])
,[object Object],
,[object Object],.create_dmg()
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
dmg_name = ,[object Object],
,[object Object],
temp_dir = ,[object Object],
os.makedirs(temp_dir, exist_ok=,[object Object],)
,[object Object],
subprocess.run([,[object Object],, ,[object Object],, ,[object Object],, temp_dir])
,[object Object],
subprocess.run([
,[object Object],, ,[object Object],,
,[object Object],, temp_dir,
,[object Object],, ,[object Object],.app_name,
,[object Object],, ,[object Object],,
dmg_name
])
,[object Object],
subprocess.run([,[object Object],, ,[object Object],, temp_dir])
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],(,[object Object],)
,[object Object],
,[object Object],.create_appimage()
,[object Object],
,[object Object],.create_deb_package()
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
appdir = ,[object Object],
,[object Object],
os.makedirs(,[object Object],, exist_ok=,[object Object],)
os.makedirs(,[object Object],, exist_ok=,[object Object],)
os.makedirs(,[object Object],, exist_ok=,[object Object],)
,[object Object],
subprocess.run([
,[object Object],,
,[object Object],,
,[object Object],, ,[object Object],.app_name,
,[object Object],
])
,[object Object],
subprocess.run([,[object Object],, ,[object Object],, ,[object Object],])
,[object Object],
desktop_content = ,[object Object],
,[object Object], ,[object Object],(,[object Object],, ,[object Object],) ,[object Object], f:
f.write(desktop_content)
,[object Object],
subprocess.run([
,[object Object],, ,[object Object],,
,[object Object],
])
,[object Object],
apprun_content = ,[object Object],
,[object Object], ,[object Object],(,[object Object],, ,[object Object],) ,[object Object], f:
f.write(apprun_content)
os.chmod(,[object Object],, ,[object Object],)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
package_dir = ,[object Object],
debian_dir = ,[object Object],
os.makedirs(debian_dir, exist_ok=,[object Object],)
os.makedirs(,[object Object],, exist_ok=,[object Object],)
os.makedirs(,[object Object],, exist_ok=,[object Object],)
,[object Object],
control_content = ,[object Object],
,[object Object], ,[object Object],(,[object Object],, ,[object Object],) ,[object Object], f:
f.write(control_content)
,[object Object],
subprocess.run([,[object Object],, ,[object Object],, ,[object Object],])
,[object Object],
subprocess.run([,[object Object],, ,[object Object],, package_dir])
,[object Object],
,[object Object], ,[object Object],():
,[object Object],
deployer = CrossPlatformDeployer(,[object Object],, ,[object Object],)
,[object Object],:
deployer.create_deployment_package()
,[object Object],(,[object Object],)
,[object Object], Exception ,[object Object], e:
,[object Object],(,[object Object],)
,[object Object], __name__ == ,[object Object],:
deploy_application()Best Practices for AV Touch Panels
Design Guidelines
- Touch Target Sizing: Minimum 44px (iOS) or 48dp (Android) for reliable touch interaction
- Visual Feedback: Immediate response to all touch interactions
- Gesture Consistency: Use standard gestures that users expect
- Error Handling: Graceful degradation when devices are offline
- Accessibility: Support for various physical abilities and technical skill levels
Security Considerations
python
[object Object], hashlib
,[object Object], hmac
,[object Object], time
,[object Object], ssl
,[object Object], cryptography.fernet ,[object Object], Fernet
,[object Object], ,[object Object],:
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],.cipher = Fernet(encryption_key)
,[object Object],.session_tokens = {}
,[object Object],.command_history = []
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],
salt = ,[object Object],
password_hash = hashlib.pbkdf2_hmac(,[object Object],, password.encode(), salt, ,[object Object],)
,[object Object],
,[object Object],
,[object Object], ,[object Object], ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
timestamp = ,[object Object],(,[object Object],(time.time()))
token_data = ,[object Object],
token = ,[object Object],.cipher.encrypt(token_data.encode())
,[object Object],.session_tokens[username] = {
,[object Object],: token,
,[object Object],: time.time(),
,[object Object],: time.time() + ,[object Object], ,[object Object],
}
,[object Object], token
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],:
decrypted = ,[object Object],.cipher.decrypt(token)
username, timestamp = decrypted.decode().split(,[object Object],)
,[object Object], username ,[object Object], ,[object Object],.session_tokens:
session = ,[object Object],.session_tokens[username]
,[object Object], time.time() < session[,[object Object],]:
,[object Object], username
,[object Object], Exception:
,[object Object],
,[object Object], ,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
username = ,[object Object],.validate_session(token)
,[object Object], ,[object Object], username:
,[object Object], SecurityError(,[object Object],)
,[object Object],
,[object Object],.command_history.append({
,[object Object],: username,
,[object Object],: command,
,[object Object],: parameters,
,[object Object],: time.time()
})
,[object Object],
,[object Object], ,[object Object],.execute_command(command, parameters)
,[object Object], ,[object Object],(,[object Object],):
,[object Object],
,[object Object],
,[object Object],
,[object Object], ,[object Object],(,[object Object],):
,[object Object],Conclusion
Python offers powerful options for creating professional AV touch panel interfaces. Tkinter provides simplicity for basic applications, PyQt/PySide delivers professional-grade capabilities, and Kivy excels at modern touch-first interfaces. The choice depends on your specific requirements for complexity, performance, and deployment constraints.
Key takeaways for successful AV touch panel development:
- Choose the right framework based on your technical requirements and team expertise
- Implement robust touch event handling for responsive user interactions
- Optimize performance to ensure smooth operation in demanding AV environments
- Plan for cross-platform deployment to maximize installation flexibility
- Follow security best practices to protect sensitive AV system access
- Design for the AV environment with appropriate sizing, feedback, and error handling
With these foundations, you can create touch panel interfaces that enhance the AV user experience while providing reliable, professional-grade control capabilities.
End of documentation