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Diffstat (limited to 'tqtinterface/qt4/src/widgets/tqlabel.cpp')
| -rw-r--r-- | tqtinterface/qt4/src/widgets/tqlabel.cpp | 1194 |
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diff --git a/tqtinterface/qt4/src/widgets/tqlabel.cpp b/tqtinterface/qt4/src/widgets/tqlabel.cpp deleted file mode 100644 index 206a7cd..0000000 --- a/tqtinterface/qt4/src/widgets/tqlabel.cpp +++ /dev/null @@ -1,1194 +0,0 @@ -/********************************************************************** -** -** Implementation of TQLabel widget class -** -** Created : 941215 -** -** Copyright (C) 2010 Timothy Pearson and (C) 1992-2008 Trolltech ASA. -** -** This file is part of the widgets module of the TQt GUI Toolkit. -** -** This file may be used under the terms of the GNU General -** Public License versions 2.0 or 3.0 as published by the Free -** Software Foundation and appearing in the files LICENSE.GPL2 -** and LICENSE.GPL3 included in the packaging of this file. -** Alternatively you may (at your option) use any later version -** of the GNU General Public License if such license has been -** publicly approved by Trolltech ASA (or its successors, if any) -** and the KDE Free TQt Foundation. -** -** Please review the following information to ensure GNU General -** Public Licensing requirements will be met: -** http://trolltech.com/products/qt/licenses/licensing/opensource/. -** If you are unsure which license is appropriate for your use, please -** review the following information: -** http://trolltech.com/products/qt/licenses/licensing/licensingoverview -** or contact the sales department at [email protected]. -** -** This file may be used under the terms of the Q Public License as -** defined by Trolltech ASA and appearing in the file LICENSE.TQPL -** included in the packaging of this file. Licensees holding valid TQt -** Commercial licenses may use this file in accordance with the TQt -** Commercial License Agreement provided with the Software. -** -** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, -** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted -** herein. -** -**********************************************************************/ - -#include "tqlabel.h" -#ifndef TQT_NO_LABEL -#include "tqpainter.h" -#include "tqdrawutil.h" -#include "tqaccel.h" -#include "tqmovie.h" -#include "tqimage.h" -#include "tqbitmap.h" -#include "tqpicture.h" -#include "tqapplication.h" -#include "tqsimplerichtext.h" -#include "tqstylesheet.h" -#include "tqstyle.h" - -class TQLabelPrivate -{ -public: - TQLabelPrivate() - :img(0), pix(0), valid_hints( -1 ) - {} - TQImage* img; // for scaled contents - TQPixmap* pix; // for scaled contents - TQSize sh; - TQSize msh; - int valid_hints; // stores the frameWidth() for the stored size hint, -1 otherwise -}; - - -/*! - \class TQLabel tqlabel.h - \brief The TQLabel widget provides a text or image display. - - \ingroup basic - \ingroup text - \mainclass - - TQLabel is used for displaying text or an image. No user - interaction functionality is provided. The visual appearance of - the label can be configured in various ways, and it can be used - for specifying a focus accelerator key for another widget. - - A TQLabel can contain any of the following content types: - \table - \header \i Content \i Setting - \row \i Plain text - \i Pass a TQString to setText(). - \row \i Rich text - \i Pass a TQString that contains rich text to setText(). - \row \i A pixmap - \i Pass a TQPixmap to setPixmap(). - \row \i A movie - \i Pass a TQMovie to setMovie(). - \row \i A number - \i Pass an \e int or a \e double to setNum(), which converts - the number to plain text. - \row \i Nothing - \i The same as an empty plain text. This is the default. Set - by clear(). - \endtable - - When the content is changed using any of these functions, any - previous content is cleared. - - The look of a TQLabel can be tuned in several ways. All the - settings of TQFrame are available for specifying a widget frame. - The positioning of the content within the TQLabel widget area can - be tuned with tqsetAlignment() and setIndent(). For example, this - code sets up a sunken panel with a two-line text in the bottom - right corner (both lines being flush with the right side of the - label): - \code - TQLabel *label = new TQLabel( this ); - label->setFrameStyle( TQFrame::Panel | TQFrame::Sunken ); - label->setText( "first line\nsecond line" ); - label->tqsetAlignment( AlignBottom | AlignRight ); - \endcode - - A TQLabel is often used as a label for an interactive widget. For - this use TQLabel provides a useful mechanism for adding an - accelerator key (see TQAccel) that will set the keyboard focus to - the other widget (called the TQLabel's "buddy"). For example: - \code - TQLineEdit* phoneEdit = new TQLineEdit( this, "phoneEdit" ); - TQLabel* phoneLabel = new TQLabel( phoneEdit, "&Phone:", this, "phoneLabel" ); - \endcode - - In this example, keyboard focus is transferred to the label's - buddy (the TQLineEdit) when the user presses Alt+P. You can - also use the setBuddy() function to accomplish the same thing. - - <img src=qlabel-m.png> <img src=qlabel-w.png> - - \sa TQLineEdit, TQTextEdit, TQPixmap, TQMovie, - \link guibooks.html#fowler GUI Design Handbook: Label\endlink -*/ - -/*! - \fn TQPicture * TQLabel::picture() const - - Returns the label's picture or 0 if the label doesn't have a - picture. -*/ - - -/*! - Constructs an empty label. - - The \a parent, \a name and widget flag \a f, arguments are passed - to the TQFrame constructor. - - \sa tqsetAlignment(), setFrameStyle(), setIndent() -*/ - -TQLabel::TQLabel( TQWidget *parent, const char *name, WFlags f ) - : TQFrame( parent, name, f | TQt::WMouseNoMask ) -{ - init(); -} - - -/*! - Constructs a label that displays the text, \a text. - - The \a parent, \a name and widget flag \a f, arguments are passed - to the TQFrame constructor. - - \sa setText(), tqsetAlignment(), setFrameStyle(), setIndent() -*/ - -TQLabel::TQLabel( const TQString &text, TQWidget *parent, const char *name, - WFlags f ) - : TQFrame( parent, name, f | TQt::WMouseNoMask ) -{ - init(); - setText( text ); -} - - -/*! - Constructs a label that displays the text \a text. The label has a - buddy widget, \a buddy. - - If the \a text contains an underlined letter (a letter preceded by - an ampersand, \&), and the text is in plain text format, when the - user presses Alt+ the underlined letter, focus is passed to the - buddy widget. - - The \a parent, \a name and widget flag, \a f, arguments are passed - to the TQFrame constructor. - - \sa setText(), setBuddy(), tqsetAlignment(), setFrameStyle(), - setIndent() -*/ -TQLabel::TQLabel( TQWidget *buddy, const TQString &text, - TQWidget *parent, const char *name, WFlags f ) - : TQFrame( parent, name, f | TQt::WMouseNoMask ) -{ - init(); -#ifndef TQT_NO_ACCEL - setBuddy( buddy ); -#endif - setText( text ); -} - -/*! - Destroys the label. -*/ - -TQLabel::~TQLabel() -{ - clearContents(); - delete d; -} - - -void TQLabel::init() -{ - lpixmap = 0; -#ifndef TQT_NO_MOVIE - lmovie = 0; -#endif -#ifndef TQT_NO_ACCEL - lbuddy = 0; - accel = 0; -#endif - lpixmap = 0; -#ifndef TQT_NO_PICTURE - lpicture = 0; -#endif - align = TQt::AlignAuto | TQt::AlignVCenter | TQt::ExpandTabs; - extraMargin = -1; - autoresize = FALSE; - scaledcontents = FALSE; - textformat = TQt::AutoText; -#ifndef TQT_NO_RICHTEXT - doc = 0; -#endif - - tqsetSizePolicy( TQSizePolicy( TQSizePolicy::Preferred, TQSizePolicy::Preferred ) ); - d = new TQLabelPrivate; -} - - -/*! - \property TQLabel::text - \brief the label's text - - If no text has been set this will return an empty string. Setting - the text clears any previous content, unless they are the same. - - The text will be interpreted either as a plain text or as a rich - text, depending on the text format setting; see setTextFormat(). - The default setting is \c AutoText, i.e. TQLabel will try to - auto-detect the format of the text set. - - If the text is interpreted as a plain text and a buddy has been - set, the buddy accelerator key is updated from the new text. - - The label resizes itself if auto-resizing is enabled. - - Note that Qlabel is well-suited to display small rich text - documents, i.e. those small documents that get their document - specific settings (font, text color, link color) from the label's - palette and font properties. For large documents, use TQTextEdit - in read-only mode instead. TQTextEdit will flicker less on resize - and can also provide a scrollbar when necessary. - - \sa text, setTextFormat(), setBuddy(), tqalignment -*/ - -void TQLabel::setText( const TQString &text ) -{ - if ( ltext == text ) - return; - TQSize osh = tqsizeHint(); -#ifndef TQT_NO_RICHTEXT - bool hadRichtext = doc != 0; -#endif - clearContents(); - ltext = text; -#ifndef TQT_NO_RICHTEXT - bool useRichText = (textformat == TQt::RichText || - ( ( textformat == TQt::AutoText ) && TQStyleSheet::mightBeRichText(ltext) ) ); -#else - bool useRichText = TRUE; -#endif -#ifndef TQT_NO_ACCEL - // ### Setting accelerators for rich text labels will not work. - // Eg. <b>>Hello</b> will return ALT+G which is clearly - // not intended. - if ( !useRichText ) { - int p = TQAccel::shortcutKey( ltext ); - if ( p ) { - if ( !accel ) - accel = new TQAccel( this, "accel label accel" ); - accel->connectItem( accel->insertItem( p ), - this, TQT_SLOT(acceleratorSlot()) ); - } - } -#endif -#ifndef TQT_NO_RICHTEXT - if ( useRichText ) { - if ( !hadRichtext ) - align |= TQt::WordBreak; - TQString t = ltext; - if ( align & Qt::AlignRight ) - t.prepend( "<div align=\"right\">"); - else if ( align & Qt::AlignHCenter ) - t.prepend( "<div align=\"center\">"); - if ( (align & TQt::WordBreak) == 0 ) - t.prepend( "<nobr>" ); - doc = new TQSimpleRichText( t, font() ); - } -#endif - - updateLabel( osh ); -} - - -/*! - Clears any label contents. Equivalent to setText( "" ). -*/ - -void TQLabel::clear() -{ - setText( TQString::tqfromLatin1("") ); -} - -/*! - \property TQLabel::pixmap - \brief the label's pixmap - - If no pixmap has been set this will return an invalid pixmap. - - Setting the pixmap clears any previous content, and resizes the - label if \l TQLabel::autoResize() is TRUE. The buddy accelerator, - if any, is disabled. -*/ -void TQLabel::setPixmap( const TQPixmap &pixmap ) -{ - TQSize osh = tqsizeHint(); - - if ( !lpixmap || lpixmap->serialNumber() != pixmap.serialNumber() ) { - clearContents(); - lpixmap = new TQPixmap( pixmap ); - } - - if ( lpixmap->depth() == 1 && !lpixmap->mask() ) - lpixmap->setMask( *((TQBitmap *)lpixmap) ); - - updateLabel( osh ); -} - -#ifndef TQT_NO_PICTURE -/*! - Sets the label contents to \a picture. Any previous content is - cleared. - - The buddy accelerator, if any, is disabled. - - \sa picture(), setBuddy() -*/ - -void TQLabel::setPicture( const TQPicture &picture ) -{ - TQSize osh = tqsizeHint(); - clearContents(); - lpicture = new TQPicture( picture ); - - updateLabel( osh ); -} -#endif // TQT_NO_PICTURE - -/*! - Sets the label contents to plain text containing the textual - representation of integer \a num. Any previous content is cleared. - Does nothing if the integer's string representation is the same as - the current contents of the label. - - The buddy accelerator, if any, is disabled. - - The label resizes itself if auto-resizing is enabled. - - \sa setText(), TQString::setNum(), setBuddy() -*/ - -void TQLabel::setNum( int num ) -{ - TQString str; - str.setNum( num ); - setText( str ); -} - -/*! - \overload - - Sets the label contents to plain text containing the textual - representation of double \a num. Any previous content is cleared. - Does nothing if the double's string representation is the same as - the current contents of the label. - - The buddy accelerator, if any, is disabled. - - The label resizes itself if auto-resizing is enabled. - - \sa setText(), TQString::setNum(), setBuddy() -*/ - -void TQLabel::setNum( double num ) -{ - TQString str; - str.setNum( num ); - setText( str ); -} - -/*! - \property TQLabel::tqalignment - \brief the tqalignment of the label's contents - - The tqalignment is a bitwise OR of \c TQt::AlignmentFlags and \c - TQt::TextFlags values. The \c ExpandTabs, \c SingleLine and \c - ShowPrefix flags apply only if the label contains plain text; - otherwise they are ignored. The \c DontClip flag is always - ignored. \c WordBreak applies to both rich text and plain text - labels. The \c BreakAnywhere flag is not supported in TQLabel. - - If the label has a buddy, the \c ShowPrefix flag is forced to - TRUE. - - The default tqalignment is \c{AlignAuto | AlignVCenter | ExpandTabs} - if the label doesn't have a buddy and \c{AlignAuto | AlignVCenter - | ExpandTabs | ShowPrefix} if the label has a buddy. If the label - contains rich text, additionally \c WordBreak is turned on. - - \sa TQt::AlignmentFlags, tqalignment, setBuddy(), text -*/ - -void TQLabel::tqsetAlignment( int tqalignment ) -{ - if ( tqalignment == align ) - return; - TQSize osh = tqsizeHint(); -#ifndef TQT_NO_ACCEL - if ( lbuddy ) - align = tqalignment | TQt::ShowPrefix; - else -#endif - align = tqalignment; - -#ifndef TQT_NO_RICHTEXT - TQString t = ltext; - if ( !t.isNull() ) { - ltext = TQString::null; - setText( t ); - } -#endif - - updateLabel( osh ); -} - - -/*! - \property TQLabel::indent - \brief the label's text indent in pixels - - If a label displays text, the indent applies to the left edge if - tqalignment() is \c AlignLeft, to the right edge if tqalignment() is - \c AlignRight, to the top edge if tqalignment() is \c AlignTop, and - to to the bottom edge if tqalignment() is \c AlignBottom. - - If indent is negative, or if no indent has been set, the label - computes the effective indent as follows: If frameWidth() is 0, - the effective indent becomes 0. If frameWidth() is greater than 0, - the effective indent becomes half the width of the "x" character - of the widget's current font(). - - \sa tqalignment, frameWidth(), font() -*/ - -void TQLabel::setIndent( int indent ) -{ - extraMargin = indent; - updateLabel( TQSize( -1, -1 ) ); -} - - -/*! - \fn bool TQLabel::autoResize() const - - \obsolete - - Returns TRUE if auto-resizing is enabled, or FALSE if auto-resizing - is disabled. - - Auto-resizing is disabled by default. - - \sa setAutoResize() -*/ - -/*! \obsolete - Enables auto-resizing if \a enable is TRUE, or disables it if \a - enable is FALSE. - - When auto-resizing is enabled the label will resize itself to fit - the contents whenever the contents change. The top-left corner is - not moved. This is useful for TQLabel widgets that are not managed by - a TQLayout (e.g., top-level widgets). - - Auto-resizing is disabled by default. - - \sa autoResize(), adjustSize(), tqsizeHint() -*/ - -void TQLabel::setAutoResize( bool enable ) -{ - if ( (bool)autoresize != enable ) { - autoresize = enable; - if ( autoresize ) - adjustSize(); // calls resize which repaints - } -} - - - -/*! - Returns the size that will be used if the width of the label is \a - w. If \a w is -1, the tqsizeHint() is returned. -*/ - -TQSize TQLabel::sizeForWidth( int w ) const -{ - TQRect br; - TQPixmap *pix = pixmap(); -#ifndef TQT_NO_PICTURE - TQPicture *pic = picture(); -#else - const int pic = 0; -#endif -#ifndef TQT_NO_MOVIE - TQMovie *mov = movie(); -#else - const int mov = 0; -#endif - int hextra = 2 * frameWidth(); - int vextra = hextra; - TQFontMetrics fm( fontMetrics() ); - int xw = fm.width( 'x' ); - if ( !mov && !pix && !pic ) { - int m = indent(); - if ( m < 0 && hextra ) // no indent, but we do have a frame - m = xw / 2 - margin(); - if ( m >= 0 ) { - int horizAlign = TQApplication::horizontalAlignment( align ); - if ( (horizAlign & Qt::AlignLeft) || (horizAlign & Qt::AlignRight ) ) - hextra += m; - if ( (align & Qt::AlignTop) || (align & Qt::AlignBottom ) ) - vextra += m; - } - } - - if ( pix ) - br = pix->rect(); -#ifndef TQT_NO_PICTURE - else if ( pic ) - br = pic->boundingRect(); -#endif -#ifndef TQT_NO_MOVIE - else if ( mov ) - br = mov->framePixmap().rect(); -#endif -#ifndef TQT_NO_RICHTEXT - else if ( doc ) { - int oldW = doc->width(); - if ( align & TQt::WordBreak ) { - if ( w < 0 ) - doc->adjustSize(); - else - doc->setWidth( w-hextra ); - } - br = TQRect( 0, 0, doc->widthUsed(), doc->height() ); - doc->setWidth( oldW ); - } -#endif - else { - bool tryWidth = (w < 0) && (align & TQt::WordBreak); - if ( tryWidth ) - w = xw * 80; - else if ( w < 0 ) - w = 2000; - w -= hextra; - br = fm.boundingRect( 0, 0, w ,2000, tqalignment(), text() ); - if ( tryWidth && br.height() < 4*fm.lineSpacing() && br.width() > w/2 ) - br = fm.boundingRect( 0, 0, w/2, 2000, tqalignment(), text() ); - if ( tryWidth && br.height() < 2*fm.lineSpacing() && br.width() > w/4 ) - br = fm.boundingRect( 0, 0, w/4, 2000, tqalignment(), text() ); - } - int wid = br.width() + hextra; - int hei = br.height() + vextra; - - return TQSize( wid, hei ); -} - - -/*! - \reimp -*/ - -int TQLabel::heightForWidth( int w ) const -{ - if ( -#ifndef TQT_NO_RICHTEXT - doc || -#endif - (align & TQt::WordBreak) ) - return sizeForWidth( w ).height(); - return TQWidget::heightForWidth( w ); -} - - - -/*!\reimp -*/ -TQSize TQLabel::tqsizeHint() const -{ - if ( d->valid_hints != frameWidth() ) - (void) TQLabel::tqminimumSizeHint(); - return d->sh; -} - -/*! - \reimp -*/ - -TQSize TQLabel::tqminimumSizeHint() const -{ - if ( d->valid_hints == frameWidth() ) - return d->msh; - - constPolish(); - d->valid_hints = frameWidth(); - d->sh = sizeForWidth( -1 ); - TQSize sz( -1, -1 ); - - if ( -#ifndef TQT_NO_RICHTEXT - !doc && -#endif - (align & TQt::WordBreak) == 0 ) { - sz = d->sh; - } else { - // think about caching these for performance - sz.rwidth() = sizeForWidth( 0 ).width(); - sz.rheight() = sizeForWidth(TQWIDGETSIZE_MAX).height(); - if ( d->sh.height() < sz.height() ) - sz.rheight() = d->sh.height(); - } - if ( tqsizePolicy().horData() == TQSizePolicy::Ignored ) - sz.rwidth() = -1; - if ( tqsizePolicy().verData() == TQSizePolicy::Ignored ) - sz.rheight() = -1; - d->msh = sz; - return sz; -} - -/*! - \reimp -*/ -void TQLabel::resizeEvent( TQResizeEvent* e ) -{ - TQFrame::resizeEvent( e ); - -#ifdef TQT_NO_RICHTEXT - static const bool doc = FALSE; -#endif - - // optimize for standard labels - if ( frameShape() == NoFrame && (align & TQt::WordBreak) == 0 && !doc && - ( e->oldSize().width() >= e->size().width() && (align & Qt::AlignLeft ) == Qt::AlignLeft ) - && ( e->oldSize().height() >= e->size().height() && (align & Qt::AlignTop ) == Qt::AlignTop ) ) { - setWFlags( TQt::WResizeNoErase ); - return; - } - - clearWFlags( TQt::WResizeNoErase ); - TQRect cr = contentsRect(); - if ( !lpixmap || !cr.isValid() || - // masked pixmaps can only reduce flicker when being top/left - // aligned and when we do not perform scaled contents - ( lpixmap->hasAlpha() && ( scaledcontents || ( ( align & (Qt::AlignLeft|Qt::AlignTop) ) != (Qt::AlignLeft|Qt::AlignTop) ) ) ) ) - return; - - setWFlags( TQt::WResizeNoErase ); - - if ( !scaledcontents ) { - // don't we all love TQFrame? Reduce pixmap flicker - TQRegion reg = TQRect( TQPoint(0, 0), e->size() ); - reg = reg.subtract( cr ); - int x = cr.x(); - int y = cr.y(); - int w = lpixmap->width(); - int h = lpixmap->height(); - if ( (align & TQt::AlignVCenter) == TQt::AlignVCenter ) - y += cr.height()/2 - h/2; - else if ( (align & TQt::AlignBottom) == TQt::AlignBottom) - y += cr.height() - h; - if ( (align & TQt::AlignRight) == TQt::AlignRight ) - x += cr.width() - w; - else if ( (align & TQt::AlignHCenter) == TQt::AlignHCenter ) - x += cr.width()/2 - w/2; - if ( x > cr.x() ) - reg = reg.unite( TQRect( cr.x(), cr.y(), x - cr.x(), cr.height() ) ); - if ( y > cr.y() ) - reg = reg.unite( TQRect( cr.x(), cr.y(), cr.width(), y - cr.y() ) ); - - if ( x + w < cr.right() ) - reg = reg.unite( TQRect( x + w, cr.y(), cr.right() - x - w, cr.height() ) ); - if ( y + h < cr.bottom() ) - reg = reg.unite( TQRect( cr.x(), y + h, cr.width(), cr.bottom() - y - h ) ); - - erase( reg ); - } -} - - -/*! - Draws the label contents using the painter \a p. -*/ - -void TQLabel::drawContents( TQPainter *p ) -{ - TQRect cr = contentsRect(); - - TQPixmap *pix = pixmap(); -#ifndef TQT_NO_PICTURE - TQPicture *pic = picture(); -#else - const int pic = 0; -#endif -#ifndef TQT_NO_MOVIE - TQMovie *mov = movie(); -#else - const int mov = 0; -#endif - - if ( !mov && !pix && !pic ) { - int m = indent(); - if ( m < 0 && frameWidth() ) // no indent, but we do have a frame - m = fontMetrics().width('x') / 2 - margin(); - if ( m > 0 ) { - int hAlign = TQApplication::horizontalAlignment( align ); - if ( hAlign & Qt::AlignLeft ) - cr.setLeft( cr.left() + m ); - if ( hAlign & Qt::AlignRight ) - cr.setRight( cr.right() - m ); - if ( align & Qt::AlignTop ) - cr.setTop( cr.top() + m ); - if ( align & Qt::AlignBottom ) - cr.setBottom( cr.bottom() - m ); - } - } - -#ifndef TQT_NO_MOVIE - if ( mov ) { - // ### should add movie to qDrawItem - TQRect r = tqstyle().tqitemRect( p, cr, align, isEnabled(), &(mov->framePixmap()), - TQString() ); - // ### could resize movie frame at this point - p->drawPixmap(r.x(), r.y(), mov->framePixmap() ); - } - else -#endif -#ifndef TQT_NO_RICHTEXT - if ( doc ) { - doc->setWidth(p, cr.width() ); - int rh = doc->height(); - int yo = 0; - if ( align & Qt::AlignVCenter ) - yo = (cr.height()-rh)/2; - else if ( align & Qt::AlignBottom ) - yo = cr.height()-rh; - if (! isEnabled() && - tqstyle().tqstyleHint(TQStyle::SH_EtchDisabledText, this)) { - TQColorGroup cg = tqcolorGroup(); - cg.setColor( TQColorGroup::Text, cg.light() ); - doc->draw(p, cr.x()+1, cr.y()+yo+1, cr, cg, 0); - } - - // TQSimpleRichText always draws with TQColorGroup::Text as with - // background mode PaletteBase. TQLabel typically has - // background mode PaletteBackground, so we create a temporary - // color group with the text color adjusted. - TQColorGroup cg = tqcolorGroup(); - if ( backgroundMode() != TQt::PaletteBase && isEnabled() ) - cg.setColor( TQColorGroup::Text, paletteForegroundColor() ); - - doc->draw(p, cr.x(), cr.y()+yo, cr, cg, 0); - } else -#endif -#ifndef TQT_NO_PICTURE - if ( pic ) { - TQRect br = pic->boundingRect(); - int rw = br.width(); - int rh = br.height(); - if ( scaledcontents ) { - p->save(); - p->translate( cr.x(), cr.y() ); -#ifndef TQT_NO_TRANSFORMATIONS - p->scale( (double)cr.width()/rw, (double)cr.height()/rh ); -#endif - p->drawPicture( -br.x(), -br.y(), *pic ); - p->restore(); - } else { - int xo = 0; - int yo = 0; - if ( align & Qt::AlignVCenter ) - yo = (cr.height()-rh)/2; - else if ( align & Qt::AlignBottom ) - yo = cr.height()-rh; - if ( align & Qt::AlignRight ) - xo = cr.width()-rw; - else if ( align & Qt::AlignHCenter ) - xo = (cr.width()-rw)/2; - p->drawPicture( cr.x()+xo-br.x(), cr.y()+yo-br.y(), *pic ); - } - } else -#endif - { -#ifndef TQT_NO_IMAGE_SMOOTHSCALE - if ( scaledcontents && pix ) { - if ( !d->img ) - d->img = new TQImage( lpixmap->convertToImage() ); - - if ( !d->pix ) - d->pix = new TQPixmap; - if ( d->pix->size() != cr.size() ) - d->pix->convertFromImage( d->img->smoothScale( cr.width(), cr.height() ) ); - pix = d->pix; - } -#endif - int tqalignment = align; - if ((align & TQt::ShowPrefix) && !tqstyle().tqstyleHint(TQStyle::SH_UnderlineAccelerator, this)) - tqalignment |= TQt::NoAccel; - // ordinary text or pixmap label - tqstyle().drawItem( p, cr, tqalignment, tqcolorGroup(), isEnabled(), - pix, ltext ); - } -} - - -/*! - Updates the label, but not the frame. -*/ - -void TQLabel::updateLabel( TQSize oldSizeHint ) -{ - d->valid_hints = -1; - TQSizePolicy policy = tqsizePolicy(); - bool wordBreak = align & TQt::WordBreak; - policy.setHeightForWidth( wordBreak ); - if ( policy != tqsizePolicy() ) - tqsetSizePolicy( policy ); - if ( tqsizeHint() != oldSizeHint ) - updateGeometry(); - if ( autoresize ) { - adjustSize(); - update( contentsRect() ); - } else { - update( contentsRect() ); - } -} - - -/*! - \internal - - Internal slot, used to set focus for accelerator labels. -*/ -#ifndef TQT_NO_ACCEL -void TQLabel::acceleratorSlot() -{ - if ( !lbuddy ) - return; - TQWidget * w = lbuddy; - while ( w->focusProxy() ) - w = TQT_TQWIDGET(w->focusProxy()); - if ( !w->hasFocus() && - w->isEnabled() && - w->isVisible() && - w->focusPolicy() != Qt::NoFocus ) { -#ifdef USE_QT4 - w->setFocus( TQFocusEvent::Shortcut ); -#else // USE_QT4 - TQFocusEvent::setReason( TQFocusEvent::Shortcut ); - w->setFocus(); - TQFocusEvent::resetReason(); -#endif // USE_QT4 - } -} -#endif - -/*! - \internal - - Internal slot, used to clean up if the buddy widget dies. -*/ -#ifndef TQT_NO_ACCEL -void TQLabel::buddyDied() // I can't remember if I cried. -{ - lbuddy = 0; -} - -/*! - Sets this label's buddy to \a buddy. - - When the user presses the accelerator key indicated by this label, - the keyboard focus is transferred to the label's buddy widget. - - The buddy mechanism is only available for TQLabels that contain - plain text in which one letter is prefixed with an ampersand, \&. - This letter is set as the accelerator key. The letter is displayed - underlined, and the '\&' is not displayed (i.e. the \c ShowPrefix - tqalignment flag is turned on; see tqsetAlignment()). - - In a dialog, you might create two data entry widgets and a label - for each, and set up the tqgeometry tqlayout so each label is just to - the left of its data entry widget (its "buddy"), for example: - \code - TQLineEdit *nameEd = new TQLineEdit( this ); - TQLabel *nameLb = new TQLabel( "&Name:", this ); - nameLb->setBuddy( nameEd ); - TQLineEdit *phoneEd = new TQLineEdit( this ); - TQLabel *phoneLb = new TQLabel( "&Phone:", this ); - phoneLb->setBuddy( phoneEd ); - // ( tqlayout setup not shown ) - \endcode - - With the code above, the focus jumps to the Name field when the - user presses Alt+N, and to the Phone field when the user presses - Alt+P. - - To unset a previously set buddy, call this function with \a buddy - set to 0. - - \sa buddy(), setText(), TQAccel, tqsetAlignment() -*/ - -void TQLabel::setBuddy( TQWidget *buddy ) -{ - if ( buddy ) - tqsetAlignment( tqalignment() | TQt::ShowPrefix ); - else - tqsetAlignment( tqalignment() & ~TQt::ShowPrefix ); - - if ( lbuddy ) - disconnect( lbuddy, TQT_SIGNAL(destroyed()), this, TQT_SLOT(buddyDied()) ); - - lbuddy = buddy; - - if ( !lbuddy ) - return; -#ifndef TQT_NO_RICHTEXT - if ( !( textformat == TQt::RichText || (textformat == TQt::AutoText && - TQStyleSheet::mightBeRichText(ltext) ) ) ) -#endif - { - int p = TQAccel::shortcutKey( ltext ); - if ( p ) { - if ( !accel ) - accel = new TQAccel( this, "accel label accel" ); - accel->connectItem( accel->insertItem( p ), - this, TQT_SLOT(acceleratorSlot()) ); - } - } - - connect( lbuddy, TQT_SIGNAL(destroyed()), this, TQT_SLOT(buddyDied()) ); -} - - -/*! - Returns this label's buddy, or 0 if no buddy is currently set. - - \sa setBuddy() -*/ - -TQWidget * TQLabel::buddy() const -{ - return lbuddy; -} -#endif //TQT_NO_ACCEL - - -#ifndef TQT_NO_MOVIE -void TQLabel::movieUpdated(const TQRect& rect) -{ - TQMovie *mov = movie(); - if ( mov && !mov->isNull() ) { - TQRect r = contentsRect(); - r = tqstyle().tqitemRect( 0, r, align, isEnabled(), &(mov->framePixmap()), - TQString() ); - r.moveBy(rect.x(), rect.y()); - r.setWidth(TQMIN(r.width(), rect.width())); - r.setHeight(TQMIN(r.height(), rect.height())); - tqrepaint( r, mov->framePixmap().mask() != 0 ); - } -} - -void TQLabel::movieResized( const TQSize& size ) -{ - d->valid_hints = -1; - if ( autoresize ) - adjustSize(); - movieUpdated( TQRect( TQPoint(0,0), size ) ); - updateGeometry(); -} - -/*! - Sets the label contents to \a movie. Any previous content is - cleared. - - The buddy accelerator, if any, is disabled. - - The label resizes itself if auto-resizing is enabled. - - \sa movie(), setBuddy() -*/ - -void TQLabel::setMovie( const TQMovie& movie ) -{ - TQSize osh = tqsizeHint(); - clearContents(); - - lmovie = new TQMovie( movie ); - lmovie->connectResize(this, TQT_SLOT(movieResized(const TQSize&))); - lmovie->connectUpdate(this, TQT_SLOT(movieUpdated(const TQRect&))); - - if ( !lmovie->running() ) // Assume that if the movie is running, - updateLabel( osh ); // resize/update Q_SIGNALS will come soon enough -} - -#endif // TQT_NO_MOVIE - -/*! - \internal - - Clears any contents, without updating/repainting the label. -*/ - -void TQLabel::clearContents() -{ -#ifndef TQT_NO_RICHTEXT - delete doc; - doc = 0; -#endif - - delete lpixmap; - lpixmap = 0; -#ifndef TQT_NO_PICTURE - delete lpicture; - lpicture = 0; -#endif - delete d->img; - d->img = 0; - delete d->pix; - d->pix = 0; - - ltext = TQString::null; -#ifndef TQT_NO_ACCEL - if ( accel ) - accel->clear(); -#endif -#ifndef TQT_NO_MOVIE - if ( lmovie ) { - lmovie->disconnectResize(this, TQT_SLOT(movieResized(const TQSize&))); - lmovie->disconnectUpdate(this, TQT_SLOT(movieUpdated(const TQRect&))); - delete lmovie; - lmovie = 0; - } -#endif -} - - -#ifndef TQT_NO_MOVIE - -/*! - Returns a pointer to the label's movie, or 0 if no movie has been - set. - - \sa setMovie() -*/ - -TQMovie* TQLabel::movie() const -{ - return lmovie; -} - -#endif // TQT_NO_MOVIE - -/*! - \property TQLabel::backgroundMode - \brief the label's background mode - - Get this property with backgroundMode(). - - \sa TQWidget::setBackgroundMode() -*/ - -/*! - \property TQLabel::textFormat - \brief the label's text format - - See the \c TQt::TextFormat enum for an explanation of the possible - options. - - The default format is \c AutoText. - - \sa text -*/ - -TQt::TextFormat TQLabel::textFormat() const -{ - return textformat; -} - -void TQLabel::setTextFormat( TQt::TextFormat format ) -{ - if ( format != textformat ) { - textformat = format; - TQString t = ltext; - if ( !t.isNull() ) { - ltext = TQString::null; - setText( t ); - } - } -} - -/*! - \reimp -*/ - -void TQLabel::fontChange( const TQFont & ) -{ - if ( !ltext.isEmpty() ) { -#ifndef TQT_NO_RICHTEXT - if ( doc ) - doc->setDefaultFont( font() ); -#endif - updateLabel( TQSize( -1, -1 ) ); - } -} - -#ifndef TQT_NO_IMAGE_SMOOTHSCALE -/*! - \property TQLabel::scaledContents - \brief whether the label will scale its contents to fill all - available space. - - When enabled and the label shows a pixmap, it will scale the - pixmap to fill the available space. - - This property's default is FALSE. - - \sa setScaledContents() -*/ -bool TQLabel::hasScaledContents() const -{ - return scaledcontents; -} - -void TQLabel::setScaledContents( bool enable ) -{ - if ( (bool)scaledcontents == enable ) - return; - scaledcontents = enable; - if ( !enable ) { - delete d->img; - d->img = 0; - delete d->pix; - d->pix = 0; - } - update( contentsRect() ); -} - -#endif // TQT_NO_IMAGE_SMOOTHSCALE - -/*! - Sets the font used on the TQLabel to font \a f. -*/ - -void TQLabel::setFont( const TQFont &f ) -{ - TQFrame::setFont( f ); -} - -#endif // TQT_NO_LABEL |