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Diffstat (limited to 'experimental/tqtinterface/qt4/src/kernel/tqcursor.cpp')
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diff --git a/experimental/tqtinterface/qt4/src/kernel/tqcursor.cpp b/experimental/tqtinterface/qt4/src/kernel/tqcursor.cpp new file mode 100644 index 000000000..16e74cf59 --- /dev/null +++ b/experimental/tqtinterface/qt4/src/kernel/tqcursor.cpp @@ -0,0 +1,292 @@ +/**************************************************************************** +** +** Implementation of TQCursor class +** +** Created : 940220 +** +** Copyright (C) 2010 Timothy Pearson and (C) 1992-2008 Trolltech ASA. +** +** This file is part of the kernel 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 sales@trolltech.com. +** +** 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 "tqcursor.h" + +#ifndef TQT_NO_CURSOR + +#include "tqbitmap.h" +#include "tqimage.h" +#include "tqdatastream.h" + +#ifdef USE_QT4 + +#else // USE_QT4 + +/*! + \class TQCursor tqcursor.h + + \brief The TQCursor class provides a mouse cursor with an arbitrary + tqshape. + + \ingroup appearance + \ingroup shared + + This class is mainly used to create mouse cursors that are + associated with particular widgets and to get and set the position + of the mouse cursor. + + TQt has a number of standard cursor tqshapes, but you can also make + custom cursor tqshapes based on a TQBitmap, a tqmask and a hotspot. + + To associate a cursor with a widget, use TQWidget::setCursor(). To + associate a cursor with all widgets (normally for a short period + of time), use TQApplication::setOverrideCursor(). + + To set a cursor tqshape use TQCursor::setShape() or use the TQCursor + constructor which takes the tqshape as argument, or you can use one + of the predefined cursors defined in the \l tqCursorShape enum. + + If you want to create a cursor with your own bitmap, either use + the TQCursor constructor which takes a bitmap and a tqmask or the + constructor which takes a pixmap as arguments. + + To set or get the position of the mouse cursor use the static + methods TQCursor::pos() and TQCursor::setPos(). + + \img cursors.png Cursor Shapes + + \sa TQWidget \link guibooks.html#fowler GUI Design Handbook: + Cursors\endlink + + On X11, TQt supports the \link + http://www.xfree86.org/4.3.0/Xcursor.3.html Xcursor\endlink + library, which allows for full color icon themes. The table below + shows the cursor name used for each TQt::tqCursorShape value. If a + cursor cannot be found using the name shown below, a standard X11 + cursor will be used instead. Note: X11 does not provide + appropriate cursors for all possible TQt::tqCursorShape values. It + is possible that some cursors will be taken from the Xcursor + theme, while others will use an internal bitmap cursor. + + \table + \header \i TQt::tqCursorShape Values \i Cursor Names + \row \i TQt::ArrowCursor \i left_ptr + \row \i TQt::UpArrowCursor \i up_arrow + \row \i TQt::CrossCursor \i cross + \row \i TQt::WaitCursor \i wait + \row \i TQt::BusyCursor \i left_ptr_watch + \row \i TQt::IbeamCursor \i ibeam + \row \i TQt::SizeVerCursor \i size_ver + \row \i TQt::SizeHorCursor \i size_hor + \row \i TQt::SizeBDiagCursor \i size_bdiag + \row \i TQt::SizeFDiagCursor \i size_fdiag + \row \i TQt::SizeAllCursor \i size_all + \row \i TQt::SplitVCursor \i split_v + \row \i TQt::SplitHCursor \i split_h + \row \i TQt::PointingHandCursor \i pointing_hand + \row \i TQt::ForbiddenCursor \i forbidden + \row \i TQt::WhatsThisCursor \i whats_this + \endtable +*/ + +/*! + \enum TQt::tqCursorShape + + This enum type defines the various cursors that can be used. + + \value ArrowCursor standard arrow cursor + \value UpArrowCursor upwards arrow + \value CrossCursor crosshair + \value WaitCursor hourglass/watch + \value BusyCursor standard arrow with hourglass/watch + \value IbeamCursor ibeam/text entry + \value SizeVerCursor vertical resize + \value SizeHorCursor horizontal resize + \value SizeFDiagCursor diagonal resize (\) + \value SizeBDiagCursor diagonal resize (/) + \value SizeAllCursor all directions resize + \value BlankCursor blank/invisible cursor + \value SplitVCursor vertical splitting + \value SplitHCursor horizontal splitting + \value PointingHandCursor a pointing hand + \value ForbiddenCursor a slashed circle + \value WhatsThisCursor an arrow with a question mark + \value BitmapCursor + + ArrowCursor is the default for widgets in a normal state. + + \img cursors.png Cursor Shapes +*/ + +/***************************************************************************** + TQCursor stream functions + *****************************************************************************/ + +#ifndef TQT_NO_DATASTREAM + + +/*! + \relates TQCursor + Writes the cursor \a c to the stream \a s. + + \sa \link datastreamformat.html Format of the TQDataStream operators \endlink +*/ + +TQDataStream &operator<<( TQDataStream &s, const TQCursor &c ) +{ + s << (TQ_INT16)c.tqshape(); // write tqshape id to stream + if ( c.tqshape() == TQt::BitmapCursor ) { // bitmap cursor +#if !defined(TQT_NO_IMAGEIO) + s << *c.bitmap() << *c.tqmask(); + s << c.hotSpot(); +#else + qWarning("No Image Cursor I/O"); +#endif + } + return s; +} + +/*! + \relates TQCursor + Reads a cursor from the stream \a s and sets \a c to the read data. + + \sa \link datastreamformat.html Format of the TQDataStream operators \endlink +*/ + +TQDataStream &operator>>( TQDataStream &s, TQCursor &c ) +{ + TQ_INT16 tqshape; + s >> tqshape; // read tqshape id from stream + if ( tqshape == TQt::BitmapCursor ) { // read bitmap cursor +#if !defined(TQT_NO_IMAGEIO) + TQBitmap bm, bmm; + TQPoint hot; + s >> bm >> bmm >> hot; + c = TQCursor( bm, bmm, hot.x(), hot.y() ); +#else + qWarning("No Image Cursor I/O"); +#endif + } else { + c.setShape( (int)tqshape ); // create cursor with tqshape + } + return s; +} +#endif // TQT_NO_DATASTREAM + + +/*! + Constructs a custom pixmap cursor. + + \a pixmap is the image. It is usual to give it a tqmask (set using + TQPixmap::setMask()). \a hotX and \a hotY define the cursor's hot + spot. + + If \a hotX is negative, it is set to the \c{pixmap().width()/2}. + If \a hotY is negative, it is set to the \c{pixmap().height()/2}. + + Valid cursor sizes depend on the display hardware (or the + underlying window system). We recommend using 32x32 cursors, + because this size is supported on all platforms. Some platforms + also support 16x16, 48x48 and 64x64 cursors. + + Currently, only black-and-white pixmaps can be used. + + \sa TQPixmap::TQPixmap(), TQPixmap::setMask() +*/ + +TQCursor::TQCursor( const TQPixmap &pixmap, int hotX, int hotY ) +{ + TQImage img = pixmap.convertToImage(). + convertDepth( 8, TQt::ThresholdDither|TQt::AvoidDither ); + TQBitmap bm; + bm.convertFromImage( img, TQt::ThresholdDither|TQt::AvoidDither ); + TQBitmap bmm; + if ( bm.tqmask() ) { + bmm = *bm.tqmask(); + TQBitmap nullBm; + bm.setMask( nullBm ); + } + else if ( pixmap.tqmask() ) { + TQImage mimg = pixmap.tqmask()->convertToImage(). + convertDepth( 8, TQt::ThresholdDither|TQt::AvoidDither ); + bmm.convertFromImage( mimg, TQt::ThresholdDither|TQt::AvoidDither ); + } + else { + bmm.resize( bm.size() ); + bmm.fill( TQt::color1 ); + } + + setBitmap(bm,bmm,hotX,hotY); +} + + + +/*! + Constructs a custom bitmap cursor. + + \a bitmap and + \a tqmask make up the bitmap. + \a hotX and + \a hotY define the cursor's hot spot. + + If \a hotX is negative, it is set to the \c{bitmap().width()/2}. + If \a hotY is negative, it is set to the \c{bitmap().height()/2}. + + The cursor \a bitmap (B) and \a tqmask (M) bits are combined like this: + \list + \i B=1 and M=1 gives black. + \i B=0 and M=1 gives white. + \i B=0 and M=0 gives transtqparent. + \i B=1 and M=0 gives an undefined result. + \endlist + + Use the global TQt color \c color0 to draw 0-pixels and \c color1 to + draw 1-pixels in the bitmaps. + + Valid cursor sizes depend on the display hardware (or the + underlying window system). We recommend using 32x32 cursors, + because this size is supported on all platforms. Some platforms + also support 16x16, 48x48 and 64x64 cursors. + + \sa TQBitmap::TQBitmap(), TQBitmap::setMask() +*/ + +TQCursor::TQCursor( const TQBitmap &bitmap, const TQBitmap &tqmask, + int hotX, int hotY ) +{ + setBitmap(bitmap,tqmask,hotX,hotY); +} + +#endif // USE_QT4 + +#endif // TQT_NO_CURSOR + + |