/*============================================================================ CMake - Cross Platform Makefile Generator Copyright 2000-2009 Kitware, Inc., Insight Software Consortium Distributed under the OSI-approved BSD License (the "License"); see accompanying file Copyright.txt for details. This software is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the License for more information. ============================================================================*/ #ifndef cmMakeDepend_h #define cmMakeDepend_h #include "cmMakefile.h" #include "cmSourceFile.h" #include /** \class cmDependInformation * \brief Store dependency information for a single source file. * * This structure stores the depend information for a single source file. */ class cmDependInformation { public: /** * Construct with dependency generation marked not done; instance * not placed in cmMakefile's list. */ cmDependInformation(): DependDone(false), SourceFile(0) {} /** * The set of files on which this one depends. */ typedef std::set DependencySetType; DependencySetType DependencySet; /** * This flag indicates whether dependency checking has been * performed for this file. */ bool DependDone; /** * If this object corresponds to a cmSourceFile instance, this points * to it. */ const cmSourceFile *SourceFile; /** * Full path to this file. */ std::string FullPath; /** * Full path not including file name. */ std::string PathOnly; /** * Name used to #include this file. */ std::string IncludeName; /** * This method adds the dependencies of another file to this one. */ void AddDependencies(cmDependInformation*); }; // cmMakeDepend is used to generate dependancy information for // the classes in a makefile class cmMakeDepend { public: /** * Construct the object with verbose turned off. */ cmMakeDepend(); /** * Destructor. */ virtual ~cmMakeDepend(); /** * Set the makefile that is used as a source of classes. */ virtual void SetMakefile(cmMakefile* makefile); /** * Add a directory to the search path for include files. */ virtual void AddSearchPath(const char*); /** * Generate dependencies for the file given. Returns a pointer to * the cmDependInformation object for the file. */ const cmDependInformation* FindDependencies(const char* file); protected: /** * Compute the depend information for this class. */ virtual void DependWalk(cmDependInformation* info); /** * Add a dependency. Possibly walk it for more dependencies. */ virtual void AddDependency(cmDependInformation* info, const char* file); /** * Fill in the given object with dependency information. If the * information is already complete, nothing is done. */ void GenerateDependInformation(cmDependInformation* info); /** * Get an instance of cmDependInformation corresponding to the given file * name. */ cmDependInformation* GetDependInformation(const char* file, const char *extraPath); /** * Find the full path name for the given file name. * This uses the include directories. * TODO: Cache path conversions to reduce FileExists calls. */ std::string FullPath(const char *filename, const char *extraPath); cmMakefile* Makefile; bool Verbose; cmsys::RegularExpression IncludeFileRegularExpression; cmsys::RegularExpression ComplainFileRegularExpression; std::vector IncludeDirectories; typedef std::map FileToPathMapType; typedef std::map DirectoryToFileToPathMapType; typedef std::map DependInformationMapType; DependInformationMapType DependInformationMap; DirectoryToFileToPathMapType DirectoryToFileToPathMap; }; #endif href='#n7'>7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** No Commercial Usage
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** contained in the Technology Preview License Agreement accompanying
** this package.
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** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
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** In addition, as a special exception, Nokia gives you certain
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****************************************************************************/

#include "qclipboard.h"

#ifndef QT_NO_CLIPBOARD

#include "qapplication.h"
#include "qapplication_p.h"
#include "qpixmap.h"
#include "qclipboard_p.h"
#include "qvariant.h"
#include "qbuffer.h"
#include "qimage.h"
#include "qtextcodec.h"

QT_BEGIN_NAMESPACE

/*!
    \class QClipboard
    \brief The QClipboard class provides access to the window system clipboard.

    The clipboard offers a simple mechanism to copy and paste data
    between applications.

    QClipboard supports the same data types that QDrag does, and uses
    similar mechanisms. For advanced clipboard usage read \l{Drag and
    Drop}.

    There is a single QClipboard object in an application, accessible
    as QApplication::clipboard().

    Example:
    \snippet doc/src/snippets/code/src_gui_kernel_qclipboard.cpp 0

    QClipboard features some convenience functions to access common
    data types: setText() allows the exchange of Unicode text and
    setPixmap() and setImage() allows the exchange of QPixmaps and
    QImages between applications. The setMimeData() function is the
    ultimate in flexibility: it allows you to add any QMimeData into
    the clipboard. There are corresponding getters for each of these,
    e.g. text(), image() and pixmap(). You can clear the clipboard by
    calling clear().

    A typical example of the use of these functions follows:

    \snippet doc/src/snippets/droparea.cpp 0

    \section1 Notes for X11 Users

    \list

    \i The X11 Window System has the concept of a separate selection
    and clipboard.  When text is selected, it is immediately available
    as the global mouse selection.  The global mouse selection may
    later be copied to the clipboard.  By convention, the middle mouse
    button is used to paste the global mouse selection.

    \i X11 also has the concept of ownership; if you change the
    selection within a window, X11 will only notify the owner and the
    previous owner of the change, i.e. it will not notify all
    applications that the selection or clipboard data changed.

    \i Lastly, the X11 clipboard is event driven, i.e. the clipboard
    will not function properly if the event loop is not running.
    Similarly, it is recommended that the contents of the clipboard
    are stored or retrieved in direct response to user-input events,
    e.g. mouse button or key presses and releases.  You should not
    store or retrieve the clipboard contents in response to timer or
    non-user-input events.

    \endlist

    \section1 Notes for Mac OS X Users

    Mac OS X supports a separate find buffer that holds the current
    search string in Find operations. This find clipboard can be accessed
    by specifying the FindBuffer mode.

    \section1 Notes for Windows and Mac OS X Users

    \list

    \i Windows and Mac OS X do not support the global mouse
    selection; they only supports the global clipboard, i.e. they
    only add text to the clipboard when an explicit copy or cut is
    made.

    \i Windows and Mac OS X does not have the concept of ownership;
    the clipboard is a fully global resource so all applications are
    notified of changes.

    \endlist

    \sa QApplication
*/

#ifndef Q_WS_X11
// for X11 there is a separate implementation of a constructor.
/*!
    \internal

    Constructs a clipboard object.

    Do not call this function.

    Call QApplication::clipboard() instead to get a pointer to the
    application's global clipboard object.

    There is only one clipboard in the window system, and creating
    more than one object to represent it is almost certainly an error.
*/

QClipboard::QClipboard(QObject *parent)
    : QObject(*new QClipboardPrivate, parent)
{
    // nothing
}
#endif

#ifndef Q_WS_WIN32
/*!
    \internal

    Destroys the clipboard.

    You should never delete the clipboard. QApplication will do this
    when the application terminates.
*/
QClipboard::~QClipboard()
{
}
#endif

/*!
    \fn void QClipboard::changed(QClipboard::Mode mode)
    \since 4.2

    This signal is emitted when the data for the given clipboard \a
    mode is changed.

    \sa dataChanged(), selectionChanged(), findBufferChanged()
*/

/*!
    \fn void QClipboard::dataChanged()

    This signal is emitted when the clipboard data is changed.

    On Mac OS X and with Qt version 4.3 or higher, clipboard
    changes made by other applications will only be detected
    when the application is activated.

    \sa findBufferChanged(), selectionChanged(), changed()
*/

/*!
    \fn void QClipboard::selectionChanged()

    This signal is emitted when the selection is changed. This only
    applies to windowing systems that support selections, e.g. X11.
    Windows and Mac OS X don't support selections.

    \sa dataChanged(), findBufferChanged(), changed()
*/

/*!
    \fn void QClipboard::findBufferChanged()
    \since 4.2

    This signal is emitted when the find buffer is changed. This only
    applies to Mac OS X.

    With Qt version 4.3 or higher, clipboard changes made by other
    applications will only be detected when the application is activated.

    \sa dataChanged(), selectionChanged(), changed()
*/


/*! \enum QClipboard::Mode
    \keyword clipboard mode

    This enum type is used to control which part of the system clipboard is
    used by QClipboard::mimeData(), QClipboard::setMimeData() and related functions.

    \value Clipboard  indicates that data should be stored and retrieved from
    the global clipboard.

    \value Selection  indicates that data should be stored and retrieved from
    the global mouse selection. Support for \c Selection is provided only on 
    systems with a global mouse selection (e.g. X11).

    \value FindBuffer indicates that data should be stored and retrieved from
    the Find buffer. This mode is used for holding search strings on Mac OS X.

    \omitvalue LastMode

    \sa QClipboard::supportsSelection()
*/


/*****************************************************************************
  QApplication member functions related to QClipboard.
 *****************************************************************************/

// text handling is done directly in qclipboard_qws, for now

/*!
    \fn bool QClipboard::event(QEvent *e)
    \reimp
*/

/*!
    \overload

    Returns the clipboard text in subtype \a subtype, or an empty string
    if the clipboard does not contain any text. If \a subtype is null,
    any subtype is acceptable, and \a subtype is set to the chosen
    subtype.

    The \a mode argument is used to control which part of the system
    clipboard is used.  If \a mode is QClipboard::Clipboard, the
    text is retrieved from the global clipboard.  If \a mode is
    QClipboard::Selection, the text is retrieved from the global
    mouse selection.

    Common values for \a subtype are "plain" and "html".

    Note that calling this function repeatedly, for instance from a
    key event handler, may be slow. In such cases, you should use the
    \c dataChanged() signal instead.

    \sa setText(), mimeData()
*/
QString QClipboard::text(QString &subtype, Mode mode) const
{
    const QMimeData *const data = mimeData(mode);
    if (!data)
        return QString();

    const QStringList formats = data->formats();
    if (subtype.isEmpty()) {
        if (formats.contains(QLatin1String("text/plain")))
            subtype = QLatin1String("plain");
        else {
            for (int i = 0; i < formats.size(); ++i)
                if (formats.at(i).startsWith(QLatin1String("text/"))) {
                    subtype = formats.at(i).mid(5);
                    break;
                }
            if (subtype.isEmpty())
                return QString();
        }
    } else if (!formats.contains(QLatin1String("text/") + subtype)) {
        return QString();
    }

    const QByteArray rawData = data->data(QLatin1String("text/") + subtype);

    QTextCodec* codec = QTextCodec::codecForMib(106); // utf-8 is default
    if (subtype == QLatin1String("html"))
        codec = QTextCodec::codecForHtml(rawData, codec);
    else
        codec = QTextCodec::codecForUtfText(rawData, codec);
    return codec->toUnicode(rawData);
}

/*!
    Returns the clipboard text as plain text, or an empty string if the
    clipboard does not contain any text.

    The \a mode argument is used to control which part of the system
    clipboard is used.  If \a mode is QClipboard::Clipboard, the
    text is retrieved from the global clipboard.  If \a mode is
    QClipboard::Selection, the text is retrieved from the global
    mouse selection. If \a mode is QClipboard::FindBuffer, the
    text is retrieved from the search string buffer.

    \sa setText(), mimeData()
*/
QString QClipboard::text(Mode mode) const
{
    const QMimeData *data = mimeData(mode);
    return data ? data->text() : QString();
}

/*!
    Copies \a text into the clipboard as plain text.

    The \a mode argument is used to control which part of the system
    clipboard is used.  If \a mode is QClipboard::Clipboard, the
    text is stored in the global clipboard.  If \a mode is
    QClipboard::Selection, the text is stored in the global
    mouse selection. If \a mode is QClipboard::FindBuffer, the
    text is stored in the search string buffer.

    \sa text(), setMimeData()
*/
void QClipboard::setText(const QString &text, Mode mode)
{
    QMimeData *data = new QMimeData;
    data->setText(text);
    setMimeData(data, mode);
}

/*!
    Returns the clipboard image, or returns a null image if the
    clipboard does not contain an image or if it contains an image in
    an unsupported image format.

    The \a mode argument is used to control which part of the system
    clipboard is used.  If \a mode is QClipboard::Clipboard, the
    image is retrieved from the global clipboard.  If \a mode is
    QClipboard::Selection, the image is retrieved from the global
    mouse selection. 

    \sa setImage() pixmap() mimeData(), QImage::isNull()
*/
QImage QClipboard::image(Mode mode) const
{
    const QMimeData *data = mimeData(mode);
    if (!data)
        return QImage();
    return qvariant_cast<QImage>(data->imageData());
}

/*!
    Copies the \a image into the clipboard.

    The \a mode argument is used to control which part of the system
    clipboard is used.  If \a mode is QClipboard::Clipboard, the
    image is stored in the global clipboard.  If \a mode is
    QClipboard::Selection, the data is stored in the global
    mouse selection.

    This is shorthand for:

    \snippet doc/src/snippets/code/src_gui_kernel_qclipboard.cpp 1

    \sa image(), setPixmap() setMimeData()
*/
void QClipboard::setImage(const QImage &image, Mode mode)
{
    QMimeData *data = new QMimeData;
    data->setImageData(image);
    setMimeData(data, mode);
}

/*!
    Returns the clipboard pixmap, or null if the clipboard does not
    contain a pixmap. Note that this can lose information. For
    example, if the image is 24-bit and the display is 8-bit, the
    result is converted to 8 bits, and if the image has an alpha
    channel, the result just has a mask.

    The \a mode argument is used to control which part of the system
    clipboard is used.  If \a mode is QClipboard::Clipboard, the
    pixmap is retrieved from the global clipboard.  If \a mode is
    QClipboard::Selection, the pixmap is retrieved from the global
    mouse selection.

    \sa setPixmap() image() mimeData() QPixmap::convertFromImage()
*/
QPixmap QClipboard::pixmap(Mode mode) const
{
    const QMimeData *data = mimeData(mode);
    return data ? qvariant_cast<QPixmap>(data->imageData()) : QPixmap();
}

/*!
    Copies \a pixmap into the clipboard. Note that this is slower
    than setImage() because it needs to convert the QPixmap to a
    QImage first.

    The \a mode argument is used to control which part of the system
    clipboard is used.  If \a mode is QClipboard::Clipboard, the
    pixmap is stored in the global clipboard.  If \a mode is
    QClipboard::Selection, the pixmap is stored in the global
    mouse selection.

    \sa pixmap() setImage() setMimeData()
*/
void QClipboard::setPixmap(const QPixmap &pixmap, Mode mode)
{
    QMimeData *data = new QMimeData;
    data->setImageData(pixmap);
    setMimeData(data, mode);
}


/*!
    \fn QMimeData *QClipboard::mimeData(Mode mode) const

    Returns a reference to a QMimeData representation of the current
    clipboard data.

    The \a mode argument is used to control which part of the system
    clipboard is used.  If \a mode is QClipboard::Clipboard, the
    data is retrieved from the global clipboard.  If \a mode is
    QClipboard::Selection, the data is retrieved from the global
    mouse selection. If \a mode is QClipboard::FindBuffer, the
    data is retrieved from the search string buffer.

    The text(), image(), and pixmap() functions are simpler
    wrappers for retrieving text, image, and pixmap data.

    \sa setMimeData()
*/

/*!
    \fn void QClipboard::setMimeData(QMimeData *src, Mode mode)

    Sets the clipboard data to \a src. Ownership of the data is
    transferred to the clipboard. If you want to remove the data
    either call clear() or call setMimeData() again with new data.

    The \a mode argument is used to control which part of the system
    clipboard is used.  If \a mode is QClipboard::Clipboard, the
    data is stored in the global clipboard.  If \a mode is
    QClipboard::Selection, the data is stored in the global
    mouse selection. If \a mode is QClipboard::FindBuffer, the
    data is stored in the search string buffer.

    The setText(), setImage() and setPixmap() functions are simpler
    wrappers for setting text, image and pixmap data respectively.

    \sa mimeData()
*/

/*! 
    \fn void QClipboard::clear(Mode mode)
    Clear the clipboard contents.

    The \a mode argument is used to control which part of the system
    clipboard is used.  If \a mode is QClipboard::Clipboard, this
    function clears the global clipboard contents.  If \a mode is
    QClipboard::Selection, this function clears the global mouse
    selection contents. If \a mode is QClipboard::FindBuffer, this 
    function clears the search string buffer.

    \sa QClipboard::Mode, supportsSelection()
*/

#ifdef QT3_SUPPORT
/*!
    \fn QMimeSource *QClipboard::data(Mode mode) const
    \compat

    Use mimeData() instead.
*/
QMimeSource *QClipboard::data(Mode mode) const
{
    Q_D(const QClipboard);

    if (supportsMode(mode) == false)
        return 0;

    if (d->compat_data[mode])
        return d->compat_data[mode];

    d->wrapper[mode]->data = mimeData(mode);
    return d->wrapper[mode];
}


/*!
    \fn void QClipboard::setData(QMimeSource *src, Mode mode)
    \compat

    Use setMimeData() instead.
*/
void QClipboard::setData(QMimeSource *source, Mode mode)
{
    Q_D(QClipboard);

    if (supportsMode(mode) == false)
        return;

    d->compat_data[mode] = source;
    setMimeData(new QMimeSourceWrapper(d, mode), mode);
}
#endif // QT3_SUPPORT

/*!
    Returns true if the clipboard supports mouse selection; otherwise
    returns false.
*/
bool QClipboard::supportsSelection() const
{
    return supportsMode(Selection);
}

/*!
    Returns true if the clipboard supports a separate search buffer; otherwise
    returns false.
*/
bool QClipboard::supportsFindBuffer() const
{
    return supportsMode(FindBuffer);
}

/*!
    Returns true if this clipboard object owns the clipboard data;
    otherwise returns false.
*/
bool QClipboard::ownsClipboard() const
{
    return ownsMode(Clipboard);
}

/*!
    Returns true if this clipboard object owns the mouse selection
    data; otherwise returns false.
*/
bool QClipboard::ownsSelection() const
{
    return ownsMode(Selection);
}

/*!
    \since 4.2

    Returns true if this clipboard object owns the find buffer data;
    otherwise returns false.
*/
bool QClipboard::ownsFindBuffer() const
{
    return ownsMode(FindBuffer);
}

/*! 
    \internal
    \fn bool QClipboard::supportsMode(Mode mode) const;
    Returns true if the clipboard supports the clipboard mode speacified by \a mode;
    otherwise returns false.
*/

/*! 
    \internal
    \fn bool QClipboard::ownsMode(Mode mode) const;
    Returns true if the clipboard supports the clipboard data speacified by \a mode;
    otherwise returns false.
*/

/*! 
    \internal
    Emits the appropriate changed signal for \a mode.
*/
void QClipboard::emitChanged(Mode mode)
{
    switch (mode) {
        case Clipboard:
            emit dataChanged();
        break;
        case Selection:
            emit selectionChanged();
        break;
        case FindBuffer:
            emit findBufferChanged();
        break;
        default:
        break;
    }
    emit changed(mode);
}

const char* QMimeDataWrapper::format(int n) const
{
    if (formats.isEmpty()) {
        QStringList fmts = data->formats();
        for (int i = 0; i < fmts.size(); ++i)
            formats.append(fmts.at(i).toLatin1());
    }
    if (n < 0 || n >= formats.size())
        return 0;
    return formats.at(n).data();
}

QByteArray QMimeDataWrapper::encodedData(const char *format) const
{
    if (QLatin1String(format) != QLatin1String("application/x-qt-image")){
        return data->data(QLatin1String(format));
    } else{
        QVariant variant = data->imageData();
        QImage img = qVariantValue<QImage>(variant);
        QByteArray ba;
        QBuffer buffer(&ba);
        buffer.open(QIODevice::WriteOnly);
        img.save(&buffer, "PNG");
        return ba;
    }
}

QVariant QMimeSourceWrapper::retrieveData(const QString &mimetype, QVariant::Type) const
{
    return source->encodedData(mimetype.toLatin1());
}

bool QMimeSourceWrapper::hasFormat(const QString &mimetype) const
{
    return source->provides(mimetype.toLatin1());
}

QStringList QMimeSourceWrapper::formats() const
{
    QStringList fmts;
    int i = 0;
    const char *fmt;
    while ((fmt = source->format(i))) {
        fmts.append(QLatin1String(fmt));
        ++i;
    }
    return fmts;
}

#endif // QT_NO_CLIPBOARD

QT_END_NAMESPACE
generated by cgit v0.12 at 2025-01-06 08:51:06 (GMT)