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qt_quick_fixes

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Examples, solutions, and quick fixes for PySide6 / Qt for Python 6

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Qt Quick Fixes is an assorted collection of examples, solutions, and quick fixes for issues I encountered during my first projects in PySide6 / Qt for Python 6. Currently, the collection focuses mainly on QML issues.

Part of the collection are just usage examples a little more worked out than the ones available in the official documentation. Part are solutions/workarounds for minor issues. A couple of items are integrated solutions to larger issues.

# 1. Installation

The only dependencies are Python 3.8+ (I tested the code with Python 3.8 and 3.9) and Qt for Python 6.2 (I tested with PySide6==6.2.2). Each snippet (a pair or .py / .qml files with the same name) is self-sufficient and independent. Modules that depend on more files are in subdirectories.

# 2. The Collection

## Action (worked example)

Simple, worked example on how to use actions on QML. Illustrates the advantages of concentrating each user command into an action.

## Bridge (worked example)

Simple, worked example on how to bridge QML and Python code. Illustrates `@QmlElement` and `@QmlSingleton` (and how to import them in QML), `Property`, `Signal`, and `@Slot`.

See also: File Drag n' Drop, JS Datatypes

## Close on Quit (workaround)

Workaround for an issue in Qt 6.2.2 on macOS in which the shortcut cmd+Q will close an application without sending the `onClosing` signal to the windows to allow them to set `close.accepted`.

- close_on_quit_v1: solves the issue by installing an event filter on the application and intervening on `QEvent.Quit`
- close_on_quit_v2: (recommended) solves the issue by overwriting the platform Quit menu item with a custom entry

See also: Menu Bar, Menu Dynamic, View Events

## Dialog (worked example, counter-intuitive syntax)

Simple, worked example on how to use platform `MessageDialog`. Illustrates a counter-intuitive syntax issue in `buttons`, where failure to parenthesize the expression will lead to some buttons not showing.

## File Drag n' Drop (worked example)

Worked example on creating a `DropArea` that accepts drop events with files (and, potentially, other URLs) from outside the application. Also illustrates how to use the `Image` QML type.

qt_quick_fixes

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