ViewportController class
Controller for Viewport.
- Implemented types
Constructors
- ViewportController({ViewportModel? initial})
- Creates a viewport controller.
Properties
- contentExtent → int
-
Total content extent in rows.
no setteroverride
- hashCode → int
-
The hash code for this object.
no setterinherited
- maxOffset → int
-
Maximum scroll offset.
no setteroverride
- model → ViewportModel
-
Current immutable viewport model.
no setter
- offset → int
-
Current scroll offset in rows.
no setteroverride
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- scrollPercent → double
-
Scroll percentage in the range
0, 1.no setteroverride - viewportExtent → int
-
Visible viewport extent in rows.
no setteroverride
- yOffset → int
-
Vertical scroll offset in rows.
no setter
Methods
-
addListener(
void listener()) → void -
Adds a listener that fires when the scroll offset changes.
override
-
configure(
{int? width, int? height, int? gutter, bool? softWrap, bool? fillHeight, bool? showLineNumbers, bool? mouseWheelEnabled, int? mouseWheelDelta, int? horizontalStep, ViewportKeyMap? keyMap, Style? style}) → void - Applies viewport configuration values.
-
jumpTo(
int offset) → bool -
Jumps to an absolute offset. Returns true if the offset changed.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
removeListener(
void listener()) → void -
Removes a previously added listener.
override
-
scrollBy(
int delta) → bool -
Scrolls by a delta. Returns true if the offset changed.
override
-
scrollPane(
{required String separator, required ScrollbarChars chars}) → ViewportScrollPane - Returns a reusable scroll-pane helper for scrollbar rendering/interaction.
-
setContent(
String content) → void - Replaces viewport content text.
-
setSize(
int width, int? height) → void - Updates viewport dimensions.
-
toString(
) → String -
A string representation of this object.
inherited
-
update(
Msg msg) → (ViewportModel, Cmd?) - Forwards a message to the underlying ViewportModel.
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited