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| 3 | ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). | - |
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| 5 | ** | - |
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| 38 | ** $QT_END_LICENSE$ | - |
| 39 | ** | - |
| 40 | ****************************************************************************/ | - |
| 41 | | - |
| 42 | /*! | - |
| 43 | \class QImageIOHandler | - |
| 44 | \brief The QImageIOHandler class defines the common image I/O | - |
| 45 | interface for all image formats in Qt. | - |
| 46 | \reentrant | - |
| 47 | \inmodule QtGui | - |
| 48 | | - |
| 49 | Qt uses QImageIOHandler for reading and writing images through | - |
| 50 | QImageReader and QImageWriter. You can also derive from this class | - |
| 51 | to write your own image format handler using Qt's plugin mechanism. | - |
| 52 | | - |
| 53 | Call setDevice() to assign a device to the handler, and | - |
| 54 | setFormat() to assign a format to it. One QImageIOHandler may | - |
| 55 | support more than one image format. canRead() returns true if an | - |
| 56 | image can be read from the device, and read() and write() return | - |
| 57 | true if reading or writing an image was completed successfully. | - |
| 58 | | - |
| 59 | QImageIOHandler also has support for animations formats, through | - |
| 60 | the functions loopCount(), imageCount(), nextImageDelay() and | - |
| 61 | currentImageNumber(). | - |
| 62 | | - |
| 63 | In order to determine what options an image handler supports, Qt | - |
| 64 | will call supportsOption() and setOption(). Make sure to | - |
| 65 | reimplement these functions if you can provide support for any of | - |
| 66 | the options in the ImageOption enum. | - |
| 67 | | - |
| 68 | To write your own image handler, you must at least reimplement | - |
| 69 | canRead() and read(). Then create a QImageIOPlugin that | - |
| 70 | can create the handler. Finally, install your plugin, and | - |
| 71 | QImageReader and QImageWriter will then automatically load the | - |
| 72 | plugin, and start using it. | - |
| 73 | | - |
| 74 | \sa QImageIOPlugin, QImageReader, QImageWriter | - |
| 75 | */ | - |
| 76 | | - |
| 77 | /*! \enum QImageIOHandler::ImageOption | - |
| 78 | | - |
| 79 | This enum describes the different options supported by | - |
| 80 | QImageIOHandler. Some options are used to query an image for | - |
| 81 | properties, and others are used to toggle the way in which an | - |
| 82 | image should be written. | - |
| 83 | | - |
| 84 | \value Size The original size of an image. A handler that supports | - |
| 85 | this option is expected to read the size of the image from the | - |
| 86 | image metadata, and return this size from option() as a QSize. | - |
| 87 | | - |
| 88 | \value ClipRect The clip rect, or ROI (Region Of Interest). A | - |
| 89 | handler that supports this option is expected to only read the | - |
| 90 | provided QRect area from the original image in read(), before any | - |
| 91 | other transformation is applied. | - |
| 92 | | - |
| 93 | \value ScaledSize The scaled size of the image. A handler that | - |
| 94 | supports this option is expected to scale the image to the | - |
| 95 | provided size (a QSize), after applying any clip rect | - |
| 96 | transformation (ClipRect). If the handler does not support this | - |
| 97 | option, QImageReader will perform the scaling after the image has | - |
| 98 | been read. | - |
| 99 | | - |
| 100 | \value ScaledClipRect The scaled clip rect (or ROI, Region Of | - |
| 101 | Interest) of the image. A handler that supports this option is | - |
| 102 | expected to apply the provided clip rect (a QRect), after applying | - |
| 103 | any scaling (ScaleSize) or regular clipping (ClipRect). If the | - |
| 104 | handler does not support this option, QImageReader will apply the | - |
| 105 | scaled clip rect after the image has been read. | - |
| 106 | | - |
| 107 | \value Description The image description. Some image formats, | - |
| 108 | such as GIF and PNG, allow embedding of text | - |
| 109 | or comments into the image data (e.g., for storing copyright | - |
| 110 | information). It's common that the text is stored in key-value | - |
| 111 | pairs, but some formats store all text in one continuous block. | - |
| 112 | QImageIOHandler returns the text as one | - |
| 113 | QString, where keys and values are separated by a ':', and | - |
| 114 | keys-value pairs are separated by two newlines (\\n\\n). For example, | - |
| 115 | "Title: Sunset\\n\\nAuthor: Jim Smith\\nSarah Jones\\n\\n". Formats that | - |
| 116 | store text in a single block can use "Description" as the key. | - |
| 117 | | - |
| 118 | \value CompressionRatio The compression ratio of the image data. A | - |
| 119 | handler that supports this option is expected to set its | - |
| 120 | compression rate depending on the value of this option (an int) | - |
| 121 | when writing. | - |
| 122 | | - |
| 123 | \value Gamma The gamma level of the image. A handler that supports | - |
| 124 | this option is expected to set the image gamma level depending on | - |
| 125 | the value of this option (a float) when writing. | - |
| 126 | | - |
| 127 | \value Quality The quality level of the image. A handler that | - |
| 128 | supports this option is expected to set the image quality level | - |
| 129 | depending on the value of this option (an int) when writing. | - |
| 130 | | - |
| 131 | \value Name The name of the image. A handler that supports this | - |
| 132 | option is expected to read the name from the image metadata and | - |
| 133 | return this as a QString, or when writing an image it is expected | - |
| 134 | to store the name in the image metadata. | - |
| 135 | | - |
| 136 | \value SubType The subtype of the image. A handler that supports | - |
| 137 | this option can use the subtype value to help when reading and | - |
| 138 | writing images. For example, a PPM handler may have a subtype | - |
| 139 | value of "ppm" or "ppmraw". | - |
| 140 | | - |
| 141 | \value IncrementalReading A handler that supports this option is | - |
| 142 | expected to read the image in several passes, as if it was an | - |
| 143 | animation. QImageReader will treat the image as an animation. | - |
| 144 | | - |
| 145 | \value Endianness The endianness of the image. Certain image | - |
| 146 | formats can be stored as BigEndian or LittleEndian. A handler that | - |
| 147 | supports Endianness uses the value of this option to determine how | - |
| 148 | the image should be stored. | - |
| 149 | | - |
| 150 | \value Animation Image formats that support animation return | - |
| 151 | true for this value in supportsOption(); otherwise, false is returned. | - |
| 152 | | - |
| 153 | \value BackgroundColor Certain image formats allow the | - |
| 154 | background color to be specified. A handler that supports | - |
| 155 | BackgroundColor initializes the background color to this option | - |
| 156 | (a QColor) when reading an image. | - |
| 157 | | - |
| 158 | \value ImageFormat The image's data format returned by the handler. | - |
| 159 | This can be any of the formats listed in QImage::Format. | - |
| 160 | */ | - |
| 161 | | - |
| 162 | /*! | - |
| 163 | \class QImageIOPlugin | - |
| 164 | \inmodule QtGui | - |
| 165 | \brief The QImageIOPlugin class defines an interface for writing | - |
| 166 | an image format plugin. | - |
| 167 | \reentrant | - |
| 168 | | - |
| 169 | \ingroup plugins | - |
| 170 | | - |
| 171 | QImageIOPlugin is a factory for creating QImageIOHandler objects, | - |
| 172 | which are used internally by QImageReader and QImageWriter to add | - |
| 173 | support for different image formats to Qt. | - |
| 174 | | - |
| 175 | Writing an image I/O plugin is achieved by subclassing this | - |
| 176 | base class, reimplementing the pure virtual functions capabilities() | - |
| 177 | and create(), and exporting the class with the | - |
| 178 | Q_PLUGIN_METADATA() macro. See \l{How to Create Qt Plugins} for details. | - |
| 179 | | - |
| 180 | An image format plugin can support three capabilities: reading (\l | - |
| 181 | CanRead), writing (\l CanWrite) and \e incremental reading (\l | - |
| 182 | CanReadIncremental). Reimplement capabilities() in you subclass to | - |
| 183 | expose the capabilities of your image format. | - |
| 184 | | - |
| 185 | create() should create an instance of your QImageIOHandler | - |
| 186 | subclass, with the provided device and format properly set, and | - |
| 187 | return this handler. | - |
| 188 | | - |
| 189 | The json metadata file for the plugin needs to contain information | - |
| 190 | about the image formats the plugins supports. For a jpeg plugin, this | - |
| 191 | could e.g. look as follows: | - |
| 192 | | - |
| 193 | \code | - |
| 194 | { "Keys": [ "jpg", "jpeg" ] } | - |
| 195 | \endcode | - |
| 196 | | - |
| 197 | Different plugins can support different capabilities. For example, | - |
| 198 | you may have one plugin that supports reading the GIF format, and | - |
| 199 | another that supports writing. Qt will select the correct plugin | - |
| 200 | for the job, depending on the return value of capabilities(). If | - |
| 201 | several plugins support the same capability, Qt will select one | - |
| 202 | arbitrarily. | - |
| 203 | | - |
| 204 | \sa QImageIOHandler, {How to Create Qt Plugins} | - |
| 205 | */ | - |
| 206 | | - |
| 207 | /*! | - |
| 208 | \enum QImageIOPlugin::Capability | - |
| 209 | | - |
| 210 | This enum describes the capabilities of a QImageIOPlugin. | - |
| 211 | | - |
| 212 | \value CanRead The plugin can read images. | - |
| 213 | \value CanWrite The plugin can write images. | - |
| 214 | \value CanReadIncremental The plugin can read images incrementally. | - |
| 215 | */ | - |
| 216 | | - |
| 217 | #include "qimageiohandler.h" | - |
| 218 | | - |
| 219 | #include <qbytearray.h> | - |
| 220 | #include <qimage.h> | - |
| 221 | #include <qvariant.h> | - |
| 222 | | - |
| 223 | QT_BEGIN_NAMESPACE | - |
| 224 | | - |
| 225 | class QIODevice; | - |
| 226 | | - |
| 227 | class QImageIOHandlerPrivate | - |
| 228 | { | - |
| 229 | Q_DECLARE_PUBLIC(QImageIOHandler) | - |
| 230 | public: | - |
| 231 | QImageIOHandlerPrivate(QImageIOHandler *q); | - |
| 232 | virtual ~QImageIOHandlerPrivate(); | - |
| 233 | | - |
| 234 | QIODevice *device; | - |
| 235 | mutable QByteArray format; | - |
| 236 | | - |
| 237 | QImageIOHandler *q_ptr; | - |
| 238 | }; | - |
| 239 | | - |
| 240 | QImageIOHandlerPrivate::QImageIOHandlerPrivate(QImageIOHandler *q) | - |
| 241 | { | - |
| 242 | device = 0; executed (the execution status of this line is deduced): device = 0; | - |
| 243 | q_ptr = q; executed (the execution status of this line is deduced): q_ptr = q; | - |
| 244 | } executed: }Execution Count:2219 | 2219 |
| 245 | | - |
| 246 | QImageIOHandlerPrivate::~QImageIOHandlerPrivate() | - |
| 247 | { | - |
| 248 | } | - |
| 249 | | - |
| 250 | /*! | - |
| 251 | Constructs a QImageIOHandler object. | - |
| 252 | */ | - |
| 253 | QImageIOHandler::QImageIOHandler() | - |
| 254 | : d_ptr(new QImageIOHandlerPrivate(this)) | - |
| 255 | { | - |
| 256 | } executed: }Execution Count:2219 | 2219 |
| 257 | | - |
| 258 | /*! \internal | - |
| 259 | | - |
| 260 | Constructs a QImageIOHandler object, using the private member \a | - |
| 261 | dd. | - |
| 262 | */ | - |
| 263 | QImageIOHandler::QImageIOHandler(QImageIOHandlerPrivate &dd) | - |
| 264 | : d_ptr(&dd) | - |
| 265 | { | - |
| 266 | } | 0 |
| 267 | | - |
| 268 | /*! | - |
| 269 | Destructs the QImageIOHandler object. | - |
| 270 | */ | - |
| 271 | QImageIOHandler::~QImageIOHandler() | - |
| 272 | { | - |
| 273 | } | - |
| 274 | | - |
| 275 | /*! | - |
| 276 | Sets the device of the QImageIOHandler to \a device. The image | - |
| 277 | handler will use this device when reading and writing images. | - |
| 278 | | - |
| 279 | The device can only be set once and must be set before calling | - |
| 280 | canRead(), read(), write(), etc. If you need to read multiple | - |
| 281 | files, construct multiple instances of the appropriate | - |
| 282 | QImageIOHandler subclass. | - |
| 283 | | - |
| 284 | \sa device() | - |
| 285 | */ | - |
| 286 | void QImageIOHandler::setDevice(QIODevice *device) | - |
| 287 | { | - |
| 288 | Q_D(QImageIOHandler); executed (the execution status of this line is deduced): QImageIOHandlerPrivate * const d = d_func(); | - |
| 289 | d->device = device; executed (the execution status of this line is deduced): d->device = device; | - |
| 290 | } executed: }Execution Count:2692 | 2692 |
| 291 | | - |
| 292 | /*! | - |
| 293 | Returns the device currently assigned to the QImageIOHandler. If | - |
| 294 | not device has been assigned, 0 is returned. | - |
| 295 | */ | - |
| 296 | QIODevice *QImageIOHandler::device() const | - |
| 297 | { | - |
| 298 | Q_D(const QImageIOHandler); executed (the execution status of this line is deduced): const QImageIOHandlerPrivate * const d = d_func(); | - |
| 299 | return d->device; executed: return d->device;Execution Count:20625 | 20625 |
| 300 | } | - |
| 301 | | - |
| 302 | /*! | - |
| 303 | Sets the format of the QImageIOHandler to \a format. The format is | - |
| 304 | most useful for handlers that support multiple image formats. | - |
| 305 | | - |
| 306 | \sa format() | - |
| 307 | */ | - |
| 308 | void QImageIOHandler::setFormat(const QByteArray &format) | - |
| 309 | { | - |
| 310 | Q_D(QImageIOHandler); executed (the execution status of this line is deduced): QImageIOHandlerPrivate * const d = d_func(); | - |
| 311 | d->format = format; executed (the execution status of this line is deduced): d->format = format; | - |
| 312 | } executed: }Execution Count:1547 | 1547 |
| 313 | | - |
| 314 | /*! | - |
| 315 | Sets the format of the QImageIOHandler to \a format. The format is | - |
| 316 | most useful for handlers that support multiple image formats. | - |
| 317 | | - |
| 318 | This function is declared const so that it can be called from canRead(). | - |
| 319 | | - |
| 320 | \sa format() | - |
| 321 | */ | - |
| 322 | void QImageIOHandler::setFormat(const QByteArray &format) const | - |
| 323 | { | - |
| 324 | Q_D(const QImageIOHandler); executed (the execution status of this line is deduced): const QImageIOHandlerPrivate * const d = d_func(); | - |
| 325 | d->format = format; executed (the execution status of this line is deduced): d->format = format; | - |
| 326 | } executed: }Execution Count:1335 | 1335 |
| 327 | | - |
| 328 | /*! | - |
| 329 | Returns the format that is currently assigned to | - |
| 330 | QImageIOHandler. If no format has been assigned, an empty string | - |
| 331 | is returned. | - |
| 332 | | - |
| 333 | \sa setFormat() | - |
| 334 | */ | - |
| 335 | QByteArray QImageIOHandler::format() const | - |
| 336 | { | - |
| 337 | Q_D(const QImageIOHandler); executed (the execution status of this line is deduced): const QImageIOHandlerPrivate * const d = d_func(); | - |
| 338 | return d->format; executed: return d->format;Execution Count:177 | 177 |
| 339 | } | - |
| 340 | | - |
| 341 | /*! | - |
| 342 | \fn bool QImageIOHandler::read(QImage *image) | - |
| 343 | | - |
| 344 | Read an image from the device, and stores it in \a image. | - |
| 345 | Returns true if the image is successfully read; otherwise returns | - |
| 346 | false. | - |
| 347 | | - |
| 348 | For image formats that support incremental loading, and for animation | - |
| 349 | formats, the image handler can assume that \a image points to the | - |
| 350 | previous frame. | - |
| 351 | | - |
| 352 | \sa canRead() | - |
| 353 | */ | - |
| 354 | | - |
| 355 | /*! | - |
| 356 | \fn bool QImageIOHandler::canRead() const | - |
| 357 | | - |
| 358 | Returns true if an image can be read from the device (i.e., the | - |
| 359 | image format is supported, the device can be read from and the | - |
| 360 | initial header information suggests that the image can be read); | - |
| 361 | otherwise returns false. | - |
| 362 | | - |
| 363 | When reimplementing canRead(), make sure that the I/O device | - |
| 364 | (device()) is left in its original state (e.g., by using peek() | - |
| 365 | rather than read()). | - |
| 366 | | - |
| 367 | \sa read(), QIODevice::peek() | - |
| 368 | */ | - |
| 369 | | - |
| 370 | /*! | - |
| 371 | \obsolete | - |
| 372 | | - |
| 373 | Use format() instead. | - |
| 374 | */ | - |
| 375 | | - |
| 376 | QByteArray QImageIOHandler::name() const | - |
| 377 | { | - |
| 378 | return format(); never executed: return format(); | 0 |
| 379 | } | - |
| 380 | | - |
| 381 | /*! | - |
| 382 | Writes the image \a image to the assigned device. Returns true on | - |
| 383 | success; otherwise returns false. | - |
| 384 | | - |
| 385 | The default implementation does nothing, and simply returns false. | - |
| 386 | */ | - |
| 387 | bool QImageIOHandler::write(const QImage &image) | - |
| 388 | { | - |
| 389 | Q_UNUSED(image); never executed (the execution status of this line is deduced): (void)image;; | - |
| 390 | return false; never executed: return false; | 0 |
| 391 | } | - |
| 392 | | - |
| 393 | /*! | - |
| 394 | Sets the option \a option with the value \a value. | - |
| 395 | | - |
| 396 | \sa option(), ImageOption | - |
| 397 | */ | - |
| 398 | void QImageIOHandler::setOption(ImageOption option, const QVariant &value) | - |
| 399 | { | - |
| 400 | Q_UNUSED(option); never executed (the execution status of this line is deduced): (void)option;; | - |
| 401 | Q_UNUSED(value); never executed (the execution status of this line is deduced): (void)value;; | - |
| 402 | } | 0 |
| 403 | | - |
| 404 | /*! | - |
| 405 | Returns the value assigned to \a option as a QVariant. The type of | - |
| 406 | the value depends on the option. For example, option(Size) returns | - |
| 407 | a QSize variant. | - |
| 408 | | - |
| 409 | \sa setOption(), supportsOption() | - |
| 410 | */ | - |
| 411 | QVariant QImageIOHandler::option(ImageOption option) const | - |
| 412 | { | - |
| 413 | Q_UNUSED(option); never executed (the execution status of this line is deduced): (void)option;; | - |
| 414 | return QVariant(); never executed: return QVariant(); | 0 |
| 415 | } | - |
| 416 | | - |
| 417 | /*! | - |
| 418 | Returns true if the QImageIOHandler supports the option \a option; | - |
| 419 | otherwise returns false. For example, if the QImageIOHandler | - |
| 420 | supports the \l Size option, supportsOption(Size) must return | - |
| 421 | true. | - |
| 422 | | - |
| 423 | \sa setOption(), option() | - |
| 424 | */ | - |
| 425 | bool QImageIOHandler::supportsOption(ImageOption option) const | - |
| 426 | { | - |
| 427 | Q_UNUSED(option); never executed (the execution status of this line is deduced): (void)option;; | - |
| 428 | return false; never executed: return false; | 0 |
| 429 | } | - |
| 430 | | - |
| 431 | /*! | - |
| 432 | For image formats that support animation, this function returns | - |
| 433 | the sequence number of the current image in the animation. If | - |
| 434 | this function is called before any image is read(), -1 is | - |
| 435 | returned. The number of the first image in the sequence is 0. | - |
| 436 | | - |
| 437 | If the image format does not support animation, 0 is returned. | - |
| 438 | | - |
| 439 | \sa read() | - |
| 440 | */ | - |
| 441 | int QImageIOHandler::currentImageNumber() const | - |
| 442 | { | - |
| 443 | return 0; never executed: return 0; | 0 |
| 444 | } | - |
| 445 | | - |
| 446 | /*! | - |
| 447 | Returns the rect of the current image. If no rect is defined for the | - |
| 448 | image, and empty QRect() is returned. | - |
| 449 | | - |
| 450 | This function is useful for animations, where only parts of the frame | - |
| 451 | may be updated at a time. | - |
| 452 | */ | - |
| 453 | QRect QImageIOHandler::currentImageRect() const | - |
| 454 | { | - |
| 455 | return QRect(); never executed: return QRect(); | 0 |
| 456 | } | - |
| 457 | | - |
| 458 | /*! | - |
| 459 | For image formats that support animation, this function returns | - |
| 460 | the number of images in the animation. If the image format does | - |
| 461 | not support animation, or if it is unable to determine the number | - |
| 462 | of images, 0 is returned. | - |
| 463 | | - |
| 464 | The default implementation returns 1 if canRead() returns true; | - |
| 465 | otherwise 0 is returned. | - |
| 466 | */ | - |
| 467 | int QImageIOHandler::imageCount() const | - |
| 468 | { | - |
| 469 | return canRead() ? 1 : 0; executed: return canRead() ? 1 : 0;Execution Count:36 | 36 |
| 470 | } | - |
| 471 | | - |
| 472 | /*! | - |
| 473 | For image formats that support animation, this function jumps to the | - |
| 474 | next image. | - |
| 475 | | - |
| 476 | The default implementation does nothing, and returns false. | - |
| 477 | */ | - |
| 478 | bool QImageIOHandler::jumpToNextImage() | - |
| 479 | { | - |
| 480 | return false; never executed: return false; | 0 |
| 481 | } | - |
| 482 | | - |
| 483 | /*! | - |
| 484 | For image formats that support animation, this function jumps to the image | - |
| 485 | whose sequence number is \a imageNumber. The next call to read() will | - |
| 486 | attempt to read this image. | - |
| 487 | | - |
| 488 | The default implementation does nothing, and returns false. | - |
| 489 | */ | - |
| 490 | bool QImageIOHandler::jumpToImage(int imageNumber) | - |
| 491 | { | - |
| 492 | Q_UNUSED(imageNumber); executed (the execution status of this line is deduced): (void)imageNumber;; | - |
| 493 | return false; executed: return false;Execution Count:7 | 7 |
| 494 | } | - |
| 495 | | - |
| 496 | /*! | - |
| 497 | For image formats that support animation, this function returns | - |
| 498 | the number of times the animation should loop. If the image format | - |
| 499 | does not support animation, 0 is returned. | - |
| 500 | */ | - |
| 501 | int QImageIOHandler::loopCount() const | - |
| 502 | { | - |
| 503 | return 0; executed: return 0;Execution Count:4 | 4 |
| 504 | } | - |
| 505 | | - |
| 506 | /*! | - |
| 507 | For image formats that support animation, this function returns | - |
| 508 | the number of milliseconds to wait until reading the next | - |
| 509 | image. If the image format does not support animation, 0 is | - |
| 510 | returned. | - |
| 511 | */ | - |
| 512 | int QImageIOHandler::nextImageDelay() const | - |
| 513 | { | - |
| 514 | return 0; executed: return 0;Execution Count:45 | 45 |
| 515 | } | - |
| 516 | | - |
| 517 | #ifndef QT_NO_IMAGEFORMATPLUGIN | - |
| 518 | | - |
| 519 | /*! | - |
| 520 | Constructs an image plugin with the given \a parent. This is | - |
| 521 | invoked automatically by the moc generated code that exports the plugin. | - |
| 522 | */ | - |
| 523 | QImageIOPlugin::QImageIOPlugin(QObject *parent) | - |
| 524 | : QObject(parent) | - |
| 525 | { | - |
| 526 | } executed: }Execution Count:100 | 100 |
| 527 | | - |
| 528 | /*! | - |
| 529 | Destroys the picture format plugin. | - |
| 530 | | - |
| 531 | You never have to call this explicitly. Qt destroys a plugin | - |
| 532 | automatically when it is no longer used. | - |
| 533 | */ | - |
| 534 | QImageIOPlugin::~QImageIOPlugin() | - |
| 535 | { | - |
| 536 | } | - |
| 537 | | - |
| 538 | /*! \fn QImageIOPlugin::capabilities(QIODevice *device, const QByteArray &format) const | - |
| 539 | | - |
| 540 | Returns the capabilities on the plugin, based on the data in \a | - |
| 541 | device and the format \a format. For example, if the | - |
| 542 | QImageIOHandler supports the BMP format, and the data in the | - |
| 543 | device starts with the characters "BM", this function should | - |
| 544 | return \l CanRead. If \a format is "bmp" and the handler supports | - |
| 545 | both reading and writing, this function should return \l CanRead | | - |
| 546 | \l CanWrite. | - |
| 547 | */ | - |
| 548 | | - |
| 549 | /*! | - |
| 550 | \fn QImageIOHandler *QImageIOPlugin::create(QIODevice *device, const QByteArray &format) const | - |
| 551 | | - |
| 552 | Creates and returns a QImageIOHandler subclass, with \a device | - |
| 553 | and \a format set. The \a format must come from the list returned by keys(). | - |
| 554 | Format names are case sensitive. | - |
| 555 | | - |
| 556 | \sa keys() | - |
| 557 | */ | - |
| 558 | | - |
| 559 | #endif // QT_NO_IMAGEFORMATPLUGIN | - |
| 560 | | - |
| 561 | QT_END_NAMESPACE | - |
| 562 | | - |
| | |