TextLayerManager class
文本图层管理器 负责管理所有文本图层的增删改查
Constructors
Properties
- count → int
-
获取图层数量
no setter
- hashCode → int
-
The hash code for this object.
no setterinherited
- hasSelection → bool
-
检查是否有选中的图层
no setter
- isEmpty → bool
-
检查是否有图层
no setter
-
layers
→ List<
TextLayerData> -
获取所有文本图层列表（按添加顺序）
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- selectedLayer → TextLayerData?
-
获取选中的图层
no setter
- selectedLayerId → String?
-
获取当前选中的图层ID
no setter
Methods
-
addLayer(
{required String text, required Offset position, Color color = Colors.blue, double fontSize = 32.0}) → String - 添加文本图层
-
clear(
) → void - 清空所有图层
-
clearSelection(
) → void - 清除选择
-
copyLayers(
) → List< TextLayerData> - 深拷贝所有图层（用于历史记录）
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
removeLayer(
String id) → bool - 删除指定的文本图层
-
removeSelectedLayer(
) → bool - 删除当前选中的图层
-
restoreLayers(
List< TextLayerData> layers) → void - 恢复图层（用于历史记录）
-
selectLayer(
String id) → bool - 选择文本图层
-
selectLayerAt(
Offset tapPosition, Size canvasSize) → String? - 根据点击位置选择文本图层
-
toString(
) → String -
A string representation of this object.
inherited
-
updateSelectedLayerColor(
Color color) → bool - 更新选中图层的颜色
-
updateSelectedLayerPosition(
Offset position) → bool - 更新选中图层的位置
-
updateSelectedLayerSize(
double size) → bool - 更新选中图层的大小
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited