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word wrap for final receipt

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discount for final receipt
This commit is contained in:
EugeneTes
2026-02-02 15:33:36 +01:00
parent e90465e286
commit a04e5dde74
3 changed files with 130 additions and 60 deletions
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106
Inspectron.Epson/PrintServer/Printers/Utils/FinalReceipt/ReceiptConverter.cs
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@@ -40,24 +40,7 @@ public class ReceiptConverter
// Items
foreach (var item in finalReceipt.Items)
{
string quantityDesc = $"{item.Quantity}x {item.Description}";
string prices = $"{item.UnitPrice:F2}"+$"{item.TotalPrice:F2}".PadLeft(7)+$" {item.TaxCategory}";
// Calculate spacing to align prices to the right
int spacesNeeded = _lineWidth - quantityDesc.Length - prices.Length;
if (spacesNeeded < 1) spacesNeeded = 1;
string itemLine = quantityDesc + new string(' ', spacesNeeded) + prices;
commands.Add(new PrintCommand(itemLine));
// SubItems
if (item.SubItems != null)
{
foreach (var subItem in item.SubItems)
{
commands.Add(new PrintCommand($" - {subItem}"));
}
}
PrintItem(item, commands);
}
commands.Add(new PrintCommand("")); // Reini
@@ -185,6 +168,93 @@ public class ReceiptConverter
return commands;
}
private void PrintItem(FinalReceiptItem item, List<PrintCommand> commands)
{
string quantityPrefix = $"{item.Quantity}x ";
string prices = $"{item.UnitPrice:F2}" + $"{item.TotalPrice:F2}".PadLeft(7) + $" {item.TaxCategory}";
string fullLine = quantityPrefix + item.Description;
int spacesNeeded = _lineWidth - fullLine.Length - prices.Length;
if (spacesNeeded >= 1 || string.IsNullOrEmpty(item.Description))
{
if (spacesNeeded < 1) spacesNeeded = 1;
commands.Add(new PrintCommand(fullLine + new string(' ', spacesNeeded) + prices));
}
else
{
int continuationAvailable = _lineWidth - quantityPrefix.Length;
int firstLineAvailable = continuationAvailable - prices.Length - 1;
if (continuationAvailable <= 0)
{
// Prefix alone exceeds line width, print without wrapping
commands.Add(new PrintCommand(fullLine));
}
else
{
var words = item.Description.Split(' ');
var lines = new List<string>();
string currentLine = "";
bool isFirstLine = true;
foreach (var word in words)
{
int available = (isFirstLine && firstLineAvailable > 0) ? firstLineAvailable : continuationAvailable;
if (currentLine.Length == 0)
{
currentLine = word;
}
else if (currentLine.Length + 1 + word.Length <= available)
{
currentLine += " " + word;
}
else
{
lines.Add(currentLine);
currentLine = word;
if (isFirstLine) isFirstLine = false;
}
}
if (currentLine.Length > 0)
{
lines.Add(currentLine);
}
// First line with prefix and right-aligned prices
string firstLineText = quantityPrefix + lines[0];
int firstSpaces = _lineWidth - firstLineText.Length - prices.Length;
if (firstSpaces >= 1)
{
commands.Add(new PrintCommand(firstLineText + new string(' ', firstSpaces) + prices));
}
else
{
commands.Add(new PrintCommand(firstLineText));
commands.Add(new PrintCommand(prices.PadLeft(_lineWidth)));
}
// Continuation lines indented to align with description
string continuationIndent = new string(' ', quantityPrefix.Length);
for (int i = 1; i < lines.Count; i++)
{
commands.Add(new PrintCommand(continuationIndent + lines[i]));
}
}
}
// SubItems
if (item.SubItems != null)
{
foreach (var subItem in item.SubItems)
{
commands.Add(new PrintCommand($" - {subItem}"));
}
}
}
private string Center(string text, bool isBigFont)
{
int effectiveLineWidth = isBigFont ? _bigFontLineWidth : _lineWidth;