Notation used in Ruby API documentation
Module: lay
Description: A widget to select a line style (dash pattern)
Class hierarchy: LineStyleSelectionButton » QPushButton » QAbstractButton » QWidget » QObject
This widget can be used to select a line style from the available ones. Line styles are selected by index. If the widget is associated with a view (see view=), additional custom line styles may be present are can also be selected. In that case, the line style index becomes view specific.
This class has been introduced in version 0.30.11.
| new LineStyleSelectionButton ptr | new | (QWidget ptr parent) | Creates a new line style selection button |
| [const] | LineStyleSelectionButton ptr | _const_cast | Returns a non-const reference to self. | |
| void | _create | Ensures the C++ object is created | ||
| void | _destroy | Explicitly destroys the object | ||
| [const] | bool | _destroyed? | Returns a value indicating whether the object was already destroyed | |
| [const] | bool | _is_const_object? | Returns a value indicating whether the reference is a const reference | |
| void | _manage | Marks the object as managed by the script side. | ||
| void | _unmanage | Marks the object as no longer owned by the script side. | ||
| [const] | int | line_style | Gets the currently selected line style | |
| void | line_style= | (int style) | Selects a line style by index | |
| [signal] | void | line_style_changed | (int pattern) | This signal is emitted when a different dither pattern is selected. |
| void | view= | (LayoutView ptr view) | Associates the button with a view |
_const_cast | Signature: [const] LineStyleSelectionButton ptr _const_cast Description: Returns a non-const reference to self. Basically, this method allows turning a const object reference to a non-const one. This method is provided as last resort to remove the constness from an object. Usually there is a good reason for a const object reference, so using this method may have undesired side effects. This method has been introduced in version 0.29.6. |
_create | Signature: void _create Description: Ensures the C++ object is created Use this method to ensure the C++ object is created, for example to ensure that resources are allocated. Usually C++ objects are created on demand and not necessarily when the script object is created. |
_destroy | Signature: void _destroy Description: Explicitly destroys the object Explicitly destroys the object on C++ side if it was owned by the script interpreter. Subsequent access to this object will throw an exception. If the object is not owned by the script, this method will do nothing. |
_destroyed? | Signature: [const] bool _destroyed? Description: Returns a value indicating whether the object was already destroyed This method returns true, if the object was destroyed, either explicitly or by the C++ side. The latter may happen, if the object is owned by a C++ object which got destroyed itself. |
_is_const_object? | Signature: [const] bool _is_const_object? Description: Returns a value indicating whether the reference is a const reference This method returns true, if self is a const reference. In that case, only const methods may be called on self. |
_manage | Signature: void _manage Description: Marks the object as managed by the script side. After calling this method on an object, the script side will be responsible for the management of the object. This method may be called if an object is returned from a C++ function and the object is known not to be owned by any C++ instance. If necessary, the script side may delete the object if the script's reference is no longer required. Usually it's not required to call this method. It has been introduced in version 0.24. |
_unmanage | Signature: void _unmanage Description: Marks the object as no longer owned by the script side. Calling this method will make this object no longer owned by the script's memory management. Instead, the object must be managed in some other way. Usually this method may be called if it is known that some C++ object holds and manages this object. Technically speaking, this method will turn the script's reference into a weak reference. After the script engine decides to delete the reference, the object itself will still exist. If the object is not managed otherwise, memory leaks will occur. Usually it's not required to call this method. It has been introduced in version 0.24. |
line_style | Signature: [const] int line_style Description: Gets the currently selected line style A negative index corresponds to 'no line style selected'. Python specific notes: |
line_style= | Signature: void line_style= (int style) Description: Selects a line style by index A negative index corresponds to 'no line style selected'. Python specific notes: |
line_style_changed | Signature: [signal] void line_style_changed (int pattern) Description: This signal is emitted when a different dither pattern is selected. Python specific notes: |
new | Signature: [static] new LineStyleSelectionButton ptr new (QWidget ptr parent) Description: Creates a new line style selection button Python specific notes: |
view= | Signature: void view= (LayoutView ptr view) Description: Associates the button with a view When associated with a view, the button will also display custom line styles available for this particular view. Without a view, only the standard styles are available. Python specific notes: |