Struct MasonryCanvas 

pub struct MasonryCanvas {

    pub model: OnceCell<LibraryAssetModel>,
    pub cache: OnceCell<Arc<ThumbnailCache>>,
    pub selection: OnceCell<MultiSelection>,
    pub narrow: Cell<bool>,
    pub select_mode: Cell<bool>,
    pub quality: Cell<GridQuality>,
    pub rows: RefCell<Vec<LaidRow>>,
    pub cached_width: Cell<f32>,
    pub layout_h: Cell<f32>,
    pub pending: RefCell<HashSet<String>>,
    pub failed: RefCell<HashSet<String>>,
    pub vadjustment: RefCell<Option<Adjustment>>,
    pub activate_handler: RefCell<Option<Rc<dyn Fn(u32)>>>,
    pub context_menu_handler: RefCell<Option<Rc<RefCell<Option<Box<dyn Fn(u32, f64, f64)>>>>>>,
    pub select_mode_changer: RefCell<Option<Rc<dyn Fn(bool)>>>,
    pub last_selected: Cell<Option<u32>>,
    pub permission_warned: Cell<bool>,
    pub video_icon: OnceCell<Paintable>,
    pub check_icon: OnceCell<Paintable>,
    pub uncheck_icon: OnceCell<Paintable>,
    pub drag_active: Cell<bool>,
    pub border_gap: Cell<f32>,
    pub border_color: Cell<Option<RGBA>>,
}

Fields

model: OnceCell<LibraryAssetModel>

cache: OnceCell<Arc<ThumbnailCache>>

selection: OnceCell<MultiSelection>

narrow: Cell<bool>

select_mode: Cell<bool>

quality: Cell<GridQuality>

rows: RefCell<Vec<LaidRow>>

cached_width: Cell<f32>

layout_h: Cell<f32>

pending: RefCell<HashSet<String>>

failed: RefCell<HashSet<String>>

Permanently failed ids; skipped to avoid re-queueing every frame.

vadjustment: RefCell<Option<Adjustment>>

activate_handler: RefCell<Option<Rc<dyn Fn(u32)>>>

context_menu_handler: RefCell<Option<Rc<RefCell<Option<Box<dyn Fn(u32, f64, f64)>>>>>>

select_mode_changer: RefCell<Option<Rc<dyn Fn(bool)>>>

last_selected: Cell<Option<u32>>

Anchor position for Shift+Click range selection.

permission_warned: Cell<bool>

video_icon: OnceCell<Paintable>

Cached video badge icon paintable, resolved lazily from the icon theme.

check_icon: OnceCell<Paintable>

Cached checkbox icon (selected state).

uncheck_icon: OnceCell<Paintable>

Cached checkbox icon (unselected state).

drag_active: Cell<bool>

True while a drag-out operation is in progress; suppresses click-to-activate.

border_gap: Cell<f32>

Configurable gap between grid tiles, in pixels.

border_color: Cell<Option<RGBA>>

Color painted behind tiles so the gap appears as a border.

Implementations

impl MasonryCanvas

fn register_type()

Registers the type only once.

impl MasonryCanvas

pub fn downgrade(&self) -> <Self as Downgrade>::Weak

impl MasonryCanvas

fn cfg(&self) -> LayoutConfig

fn layout_for_width(&self, width: f32) -> f32

pub(super) fn invalidate_layout(&self)

fn snapshot_ctx<'a>( &'a self, model: &'a LibraryAssetModel, cache: &'a Arc<ThumbnailCache>, ) -> SnapshotCtx<'a>

fn snapshot_viewport(&self) -> SnapshotViewport

fn paint_snapshot_rows( &self, snapshot: &Snapshot, sctx: &SnapshotCtx<'_>, rows: &[LaidRow], viewport: &SnapshotViewport, ) -> (SnapshotStats, Vec<LoadRequest>)

fn paint_row( &self, snapshot: &Snapshot, sctx: &SnapshotCtx<'_>, row: &LaidRow, viewport: &SnapshotViewport, stats: &mut SnapshotStats, to_load: &mut Vec<LoadRequest>, )

fn paint_item( &self, snapshot: &Snapshot, sctx: &SnapshotCtx<'_>, row: &LaidRow, it: &LaidItem, row_in_viewport: bool, ) -> PaintResult

fn paint_video_badge( &self, snapshot: &Snapshot, cell_x: f32, cell_y: f32, cell_w: f32, cell_h: f32, )

Paint the video play-icon badge centred on the cell.

A semi-transparent dark circle is drawn behind the icon for contrast, then the cached mimick-video-symbolic icon is rendered on top.

fn paint_checkbox( &self, snapshot: &Snapshot, cell_x: f32, cell_y: f32, cell_h: f32, selected: bool, )

Paint a checkbox indicator in the top-left corner of a tile.

fn paint_checked_box( &self, snapshot: &Snapshot, bx: f32, by: f32, box_size: f32, )

Accent-filled square with a checkmark icon.

fn paint_unchecked_box(snapshot: &Snapshot, bx: f32, by: f32, box_size: f32)

Bordered empty square (outline only).

fn queue_load_if_needed( &self, model: &LibraryAssetModel, it: &LaidItem, row: &LaidRow, viewport_center: f32, bucket: ThumbnailSize, to_load: &mut Vec<LoadRequest>, )

fn load_is_blocked(&self, asset_id: &str, bucket: ThumbnailSize) -> bool

fn finish_snapshot( &self, cache: &ThumbnailCache, viewport: &SnapshotViewport, stats: &SnapshotStats, to_load: &mut Vec<LoadRequest>, )

fn log_snapshot( &self, cache: &ThumbnailCache, viewport: &SnapshotViewport, stats: &SnapshotStats, queued: usize, )

fn viewport(&self) -> (f32, f32)

fn find_vadjustment(&self) -> Option<Adjustment>

fn spawn_load(&self, request: LoadRequest)

Trait Implementations

impl Default for MasonryCanvas

fn default() -> MasonryCanvas

Returns the “default value” for a type.

impl ObjectImpl for MasonryCanvas

fn constructed(&self)

Constructed.

fn properties() -> &'static [ParamSpec]

Properties installed for this type.

fn signals() -> &'static [Signal]

Signals installed for this type.

fn set_property(&self, _id: usize, _value: &Value, _pspec: &ParamSpec)

Property setter.

fn property(&self, _id: usize, _pspec: &ParamSpec) -> Value

Property getter.

fn dispose(&self)

Disposes of the object.

fn notify(&self, pspec: &ParamSpec)

Function to be called when property change is notified for with self.notify("property").

fn dispatch_properties_changed(&self, pspecs: &[ParamSpec])

impl ObjectSubclass for MasonryCanvas

const NAME: &str = "MimickMasonryCanvas"

GObject type name.

type Interfaces = ()

List of interfaces implemented by this type.

type Class = ClassStruct<MasonryCanvas>

The C class struct.

type Instance = InstanceStruct<MasonryCanvas>

The C instance struct.

type Type = MasonryCanvas

Wrapper around this subclass defined with wrapper!

type ParentType = Widget

Parent Rust type to inherit from.

fn new() -> Self

Constructor.

const ABSTRACT: bool = false

If this subclass is an abstract class or not.

const FINAL: bool = false

If this subclass is a final class or not.

const DEPRECATED: bool = false

If this subclass is a deprecated class or not.

const ALLOW_NAME_CONFLICT: bool = false

Allow name conflicts for this class.

fn type_init(_type_: &mut InitializingType<Self>)

Additional type initialization.

fn class_init(_klass: &mut Self::Class)

Class initialization.

fn with_class(_klass: &Self::Class) -> Self

Constructor.

fn instance_init(_obj: &InitializingObject<Self>)

Performs additional instance initialization.

impl ObjectSubclassType for MasonryCanvas

fn type_data() -> NonNull<TypeData>

Storage for the type-specific data used during registration.

fn type_() -> Type

Returns the glib::Type ID of the subclass.

impl WidgetImpl for MasonryCanvas

fn request_mode(&self) -> SizeRequestMode

fn measure( &self, orientation: Orientation, for_size: i32, ) -> (i32, i32, i32, i32)

fn size_allocate(&self, width: i32, _height: i32, _baseline: i32)

fn snapshot(&self, snapshot: &Snapshot)

fn compute_expand(&self, hexpand: &mut bool, vexpand: &mut bool)

fn contains(&self, x: f64, y: f64) -> bool

fn direction_changed(&self, previous_direction: TextDirection)

fn focus(&self, direction_type: DirectionType) -> bool

fn grab_focus(&self) -> bool

fn hide(&self)

👎Deprecated:

Since 4.10

fn keynav_failed(&self, direction_type: DirectionType) -> bool

fn map(&self)

fn mnemonic_activate(&self, group_cycling: bool) -> bool

fn move_focus(&self, direction_type: DirectionType)

fn query_tooltip( &self, x: i32, y: i32, keyboard_tooltip: bool, tooltip: &Tooltip, ) -> bool

fn realize(&self)

fn root(&self)

fn set_focus_child(&self, child: Option<&Widget>)

fn show(&self)

👎Deprecated:

Since 4.10

fn state_flags_changed(&self, state_flags: &StateFlags)

fn system_setting_changed(&self, settings: &SystemSetting)

fn unmap(&self)

fn unrealize(&self)

fn unroot(&self)