handlePointerMove method

void handlePointerMove(PointerMoveEvent event)

Implementation

void handlePointerMove(PointerMoveEvent event) {
  if (draggingItemId.value != null) {
    // If we have multiple items selected, move all of them
    if (selectedItemIds.isNotEmpty) {
      for (var itemId in selectedItemIds) {
        final index = items.indexWhere((item) => item.id == itemId);
        if (index == -1) continue;

        final item = items[index];

        // Check if the item is a table component
        if (_isTableComponent(item.label)) {
          // For table components, ensure they stay within table bounds
          final newY = (item.positionY ?? 0) + event.delta.dy;
          if (!_isWithinTableBounds(newY)) continue;
        }

        final Offset currentVisualPosition = Offset(
            (item.positionX ?? 0) + event.delta.dx,
            (item.positionY ?? 0) + event.delta.dy);
        final sectionY = sectionYPositions[item.section!]!;
        final sectionHeight = _getSectionHeight(item.section!);

        // Constrain item within its section and table bounds if it's a table component
        final double constrainedX =
        currentVisualPosition.dx.clamp(0.0, 595 - (item.width ?? 100));
        double constrainedY = currentVisualPosition.dy
            .clamp(sectionY, sectionY + sectionHeight - (item.height ?? 25));

        if (_isTableComponent(item.label)) {
          constrainedY = constrainedY.clamp(
              tableStartY.value, tableEndY.value - (item.height ?? 25));
        }

        items[index] = PrinterDesignerPackageListModel(
          id: item.id,
          type: item.type,
          label: item.label,
          prefix: item.prefix,
          value: item.value,
          imageUrl: item.imageUrl,
          positionX: constrainedX,
          positionY: constrainedY,
          height: item.height,
          width: item.width,
          section: item.section,
          isSelected: item.isSelected,
          customText: item.customText,
          properties: item.properties,
        );
      }
    } else {
      // Single item movement (existing code)
      final index =
      items.indexWhere((item) => item.id == draggingItemId.value);
      if (index == -1) return;

      final item = items[index];

      // Check if the item is a table component
      if (_isTableComponent(item.label)) {
        // For table components, ensure they stay within table bounds
        final newY = (item.positionY ?? 0) + event.delta.dy;
        if (!_isWithinTableBounds(newY)) return;
      }

      final Offset currentVisualPosition = Offset(
          (item.positionX ?? 0) + event.delta.dx,
          (item.positionY ?? 0) + event.delta.dy);
      final sectionY = sectionYPositions[item.section!]!;
      final sectionHeight = _getSectionHeight(item.section!);

      // Constrain item within its section and table bounds if it's a table component
      final double constrainedX =
      currentVisualPosition.dx.clamp(0.0, 595 - (item.width ?? 100));
      double constrainedY = currentVisualPosition.dy
          .clamp(sectionY, sectionY + sectionHeight - (item.height ?? 25));

      if (_isTableComponent(item.label)) {
        constrainedY = constrainedY.clamp(
            tableStartY.value, tableEndY.value - (item.height ?? 25));
      }

      items[index] = PrinterDesignerPackageListModel(
        id: item.id,
        type: item.type,
        label: item.label,
        prefix: item.prefix,
        value: item.value,
        imageUrl: item.imageUrl,
        positionX: constrainedX,
        positionY: constrainedY,
        height: item.height,
        width: item.width,
        section: item.section,
        isSelected: item.isSelected,
        customText: item.customText,
        properties: item.properties,
      );
    }
  }
}