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backend_qt: new method save_as_memfile() to save as

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`BARCODE_MEMORY_FILE` and use in GUI for pasting to clipboard
  instead of creating temporary file
CLI: allow fully case-insensitive "tiff" as filetype (saved as
  ".tif"), processing up to 4-letter extensions and hopefully
  making filetype handling more expected;
  simplify `validate_float()` (unneeded 2nd fractional max test);
  add some more internal "--test" tests
BWIPP: update to latest (change from ctx to global VM) - zint tests
  work as-is, no change
This commit is contained in:
gitlost
2025-12-29 17:46:24 +00:00
parent a3f6c75bc0
commit b434202817
7 changed files with 303 additions and 41 deletions
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8
backend_qt/qzint.h
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@@ -278,10 +278,10 @@ public:
bool takesGS1AIData(int symbology = 0) const;
/* Error or warning returned by Zint on `render()` or `save_to_file()` */
/* Error or warning returned by Zint on `render()`, `save_to_file()` or `save_to_memfile()` */
int getError() const;
/* Error message returned by Zint on `render()` or `save_to_file()` */
/* Error message returned by Zint on `render()`, `save_to_file()` or `save_to_memfile()` */
const QString& lastError() const; // `symbol->errtxt`
/* Whether `lastError()` set */
@@ -291,6 +291,10 @@ public:
/* Encode and print barcode to file `filename`. Only sets `getError()` on error, not on warning */
bool save_to_file(const QString& filename); // `ZBarcode_Print()`
/* Encode and print barcode to memory file `filename` (only the extension is used, to determine output format).
Only sets `getError()` on error, not on warning */
bool save_to_memfile(const QString& filename, QByteArray& data); // `ZBarcode_Print()` + BARCODE_MEMORY_FILE
/* Encode and display barcode in `paintRect` using `painter`.
Note: legacy argument `mode` is not used */
void render(QPainter& painter, const QRectF& paintRect, AspectRatioMode mode = IgnoreAspectRatio);