handleResizeUpdate method

void handleResizeUpdate(Offset currentPosition)

Implementation

void handleResizeUpdate(Offset currentPosition) {
  if (resizingItemId.value == null ||
      originalItemSize.value == null ||
      resizeStartPosition.value == null) return;

  final index = items.indexWhere((item) => item.id == resizingItemId.value);
  if (index == -1) return;

  final item = items[index];
  final delta = currentPosition - resizeStartPosition.value!;

  // Get the default size for this component type
  // final defaultSize = componentSizes[item.label ?? ''] ?? Size(100, 20);

  // Get section constraints
  final sectionY = sectionYPositions[item.section!]!;
  final sectionHeight = _getSectionHeight(item.section!);
  final maxWidth = 585.0; // Maximum width of the canvas

  // Calculate maximum allowed size based on position
  final maxAllowedWidth = maxWidth - (item.positionX ?? 0);
  final maxAllowedHeight = sectionY + sectionHeight - (item.positionY ?? 0);

  // Calculate new size with constraints
  double newWidth = originalItemSize.value!.width + delta.dx;
  double newHeight = originalItemSize.value!.height + delta.dy;

  // Apply minimum constraints
  newWidth = newWidth < 50 ? 50 : newWidth;
  if ([
    'Invoice Number',
    'Invoice Date',
    'LPO Number',
    'Payment Terms',
    'Sales Person',
    'Amount Words'
  ].contains(item.label)) {
    double maxValue = item.properties?.direction == 'horizontal' ? 15 : 33;

    newHeight = newHeight < maxValue ? maxValue : newHeight;
  } else {
    newHeight = newHeight < 15 ? 15 : newHeight;
  }

  // Apply maximum constraints
  newWidth = newWidth > maxAllowedWidth ? maxAllowedWidth : newWidth;
  newHeight = newHeight > maxAllowedHeight ? maxAllowedHeight : newHeight;

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