pub struct GLAreaBuilder { /* private fields */ }
Expand description

A builder-pattern type to construct GLArea objects.

Implementations

Create a new GLAreaBuilder.

Build the GLArea.

If set to true the signal::GLArea::render signal will be emitted every time the widget draws. This is the default and is useful if drawing the widget is faster.

If set to false the data from previous rendering is kept around and will be used for drawing the widget the next time, unless the window is resized. In order to force a rendering GLAreaExt::queue_render() must be called. This mode is useful when the scene changes seldomly, but takes a long time to redraw.

If set to true the buffer allocated by the widget will have an alpha channel component, and when rendering to the window the result will be composited over whatever is below the widget.

If set to false there will be no alpha channel, and the buffer will fully replace anything below the widget.

If set to true the widget will allocate and enable a depth buffer for the target framebuffer.

If set to true the widget will allocate and enable a stencil buffer for the target framebuffer.

Available on crate feature v3_22 only.

If set to true the widget will try to create a gdk::GLContext using OpenGL ES instead of OpenGL.

See also: GLContext::set_use_es()

Whether to expand in both directions. Setting this sets both property::Widget::hexpand and property::Widget::vexpand

Available on crate feature v3_20 only.

Whether the widget should grab focus when it is clicked with the mouse.

This property is only relevant for widgets that can take focus.

Before 3.20, several widgets (GtkButton, GtkFileChooserButton, GtkComboBox) implemented this property individually.

How to distribute horizontal space if widget gets extra space, see Align

Enables or disables the emission of signal::Widget::query-tooltip on widget. A value of true indicates that widget can have a tooltip, in this case the widget will be queried using signal::Widget::query-tooltip to determine whether it will provide a tooltip or not.

Note that setting this property to true for the first time will change the event masks of the GdkWindows of this widget to include leave-notify and motion-notify events. This cannot and will not be undone when the property is set to false again.

Whether to expand horizontally. See WidgetExt::set_hexpand().

Whether to use the property::Widget::hexpand property. See WidgetExt::is_hexpand_set().

Sets all four sides’ margin at once. If read, returns max margin on any side.

Margin on bottom side of widget.

This property adds margin outside of the widget’s normal size request, the margin will be added in addition to the size from WidgetExt::set_size_request() for example.

Margin on end of widget, horizontally. This property supports left-to-right and right-to-left text directions.

This property adds margin outside of the widget’s normal size request, the margin will be added in addition to the size from WidgetExt::set_size_request() for example.

Margin on start of widget, horizontally. This property supports left-to-right and right-to-left text directions.

This property adds margin outside of the widget’s normal size request, the margin will be added in addition to the size from WidgetExt::set_size_request() for example.

Margin on top side of widget.

This property adds margin outside of the widget’s normal size request, the margin will be added in addition to the size from WidgetExt::set_size_request() for example.

The requested opacity of the widget. See WidgetExt::set_opacity() for more details about window opacity.

Before 3.8 this was only available in GtkWindow

Sets the text of tooltip to be the given string, which is marked up with the [Pango text markup language][PangoMarkupFormat]. Also see Tooltip::set_markup().

This is a convenience property which will take care of getting the tooltip shown if the given string is not None: property::Widget::has-tooltip will automatically be set to true and there will be taken care of signal::Widget::query-tooltip in the default signal handler.

Note that if both property::Widget::tooltip-text and property::Widget::tooltip-markup are set, the last one wins.

Sets the text of tooltip to be the given string.

Also see Tooltip::set_text().

This is a convenience property which will take care of getting the tooltip shown if the given string is not None: property::Widget::has-tooltip will automatically be set to true and there will be taken care of signal::Widget::query-tooltip in the default signal handler.

Note that if both property::Widget::tooltip-text and property::Widget::tooltip-markup are set, the last one wins.

How to distribute vertical space if widget gets extra space, see Align

Whether to expand vertically. See WidgetExt::set_vexpand().

Whether to use the property::Widget::vexpand property. See WidgetExt::is_vexpand_set().

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Returns the “default value” for a type. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.