mouseScroll method
void
mouseScroll(
- PointerSignalEvent event, {
- required Layer activeLayer,
- required int selectedLayerIndex,
Handles mouse scroll events.
Implementation
void mouseScroll(
PointerSignalEvent event, {
required Layer activeLayer,
required int selectedLayerIndex,
}) {
bool shiftDown = HardwareKeyboard.instance.logicalKeysPressed
.contains(LogicalKeyboardKey.shiftLeft) ||
HardwareKeyboard.instance.logicalKeysPressed
.contains(LogicalKeyboardKey.shiftRight);
if (event is PointerScrollEvent && selectedLayerIndex >= 0) {
if (shiftDown) {
if (event.scrollDelta.dy > 0) {
activeLayer.rotation -= 0.087266;
} else if (event.scrollDelta.dy < 0) {
activeLayer.rotation += 0.087266;
}
} else {
double factor = activeLayer is PaintingLayerData
? 0.1
: activeLayer is TextLayerData
? 0.15
: configs.textEditorConfigs.initFontSize / 50;
if (event.scrollDelta.dy > 0) {
activeLayer.scale -= factor;
activeLayer.scale = max(0.1, activeLayer.scale);
} else if (event.scrollDelta.dy < 0) {
activeLayer.scale += factor;
}
}
setState(() {});
onUpdateUI?.call();
}
}