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Eneboo - Documentación para desarrolladores
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Eneboo - Documentación para desarrolladores
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The QCursor class provides a mouse cursor with an arbitrary shape. Más...
#include <qcursor.h>
Métodos públicos | |
| QCursor () | |
| QCursor (int shape) | |
| QCursor (const QBitmap &bitmap, const QBitmap &mask, int hotX=-1, int hotY=-1) | |
| QCursor (const QPixmap &pixmap, int hotX=-1, int hotY=-1) | |
| QCursor (const QCursor &) | |
| ~QCursor () | |
| QCursor & | operator= (const QCursor &) |
| int | shape () const |
| void | setShape (int) |
| const QBitmap * | bitmap () const |
| const QBitmap * | mask () const |
| QPoint | hotSpot () const |
| QCursor () | |
| QCursor (int shape) | |
| QCursor (const QBitmap &bitmap, const QBitmap &mask, int hotX=-1, int hotY=-1) | |
| QCursor (const QPixmap &pixmap, int hotX=-1, int hotY=-1) | |
| QCursor (const QCursor &) | |
| ~QCursor () | |
| QCursor & | operator= (const QCursor &) |
| int | shape () const |
| void | setShape (int) |
| const QBitmap * | bitmap () const |
| const QBitmap * | mask () const |
| QPoint | hotSpot () const |
Métodos públicos estáticos | |
| static QPoint | pos () |
| static void | setPos (int x, int y) |
| static void | setPos (const QPoint &) |
| static void | initialize () |
| static void | cleanup () |
| static QPoint | pos () |
| static void | setPos (int x, int y) |
| static void | setPos (const QPoint &) |
| static void | initialize () |
| static void | cleanup () |
Funciones relacionadas | |
(Observar que estas no son funciones miembro.) | |
| QDataStream & | operator<< (QDataStream &s, const QCursor &c) |
| QDataStream & | operator>> (QDataStream &s, QCursor &c) |
The QCursor class provides a mouse cursor with an arbitrary shape.
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.
Qt has a number of standard cursor shapes, but you can also make custom cursor shapes based on a QBitmap, a mask and a hotspot.
To associate a cursor with a widget, use QWidget::setCursor(). To associate a cursor with all widgets (normally for a short period of time), use QApplication::setOverrideCursor().
To set a cursor shape use QCursor::setShape() or use the QCursor constructor which takes the shape as argument, or you can use one of the predefined cursors defined in the CursorShape enum.
If you want to create a cursor with your own bitmap, either use the QCursor constructor which takes a bitmap and a mask or the constructor which takes a pixmap as arguments.
To set or get the position of the mouse cursor use the static methods QCursor::pos() and QCursor::setPos().
cursors.png Cursor Shapes
On X11, Qt supports the Xcursor library, which allows for full color icon themes. The table below shows the cursor name used for each Qt::CursorShape 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 Qt::CursorShape values. It is possible that some cursors will be taken from the Xcursor theme, while others will use an internal bitmap cursor.
Qt::CursorShape Values Cursor Names Qt::ArrowCursor left_ptr Qt::UpArrowCursor up_arrow Qt::CrossCursor cross Qt::WaitCursor wait Qt::BusyCursor left_ptr_watch Qt::IbeamCursor ibeam Qt::SizeVerCursor size_ver Qt::SizeHorCursor size_hor Qt::SizeBDiagCursor size_bdiag Qt::SizeFDiagCursor size_fdiag Qt::SizeAllCursor size_all Qt::SplitVCursor split_v Qt::SplitHCursor split_h Qt::PointingHandCursor pointing_hand Qt::ForbiddenCursor forbidden Qt::WhatsThisCursor whats_this
| QCursor::QCursor | ( | ) |
Constructs a cursor with the default arrow shape.
| QCursor::QCursor | ( | int | shape | ) |
Constructs a cursor with the specified shape.
shape can be one of
ArrowCursor - standard arrow cursor UpArrowCursor - upwards arrow CrossCursor - crosshair WaitCursor - hourglass/watch IbeamCursor - ibeam/text entry SizeVerCursor - vertical resize SizeHorCursor - horizontal resize SizeBDiagCursor - diagonal resize (/) SizeFDiagCursor - diagonal resize (\) SizeAllCursor - all directions resize BlankCursor - blank/invisible cursor SplitVCursor - vertical splitting SplitHCursor - horziontal splitting PointingHandCursor - a pointing hand BitmapCursor - userdefined bitmap cursor These correspond to the predefined global QCursor objects.
Constructs a cursor with the specified shape.
See CursorShape for a list of shapes.
Constructs a custom bitmap cursor.
bitmap and mask make up the bitmap. hotX and hotY define the cursor's hot spot.
If hotX is negative, it is set to the {bitmap().width()/2}. If hotY is negative, it is set to the {bitmap().height()/2}.
The cursor bitmap (B) and mask (M) bits are combined like this: B=1 and M=1 gives black. B=0 and M=1 gives white. B=0 and M=0 gives transparent. B=1 and M=0 gives an undefined result.
Use the global Qt color color0 to draw 0-pixels and 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.
Constructs a custom pixmap cursor.
pixmap is the image. It is usual to give it a mask (set using QPixmap::setMask()). hotX and hotY define the cursor's hot spot.
If hotX is negative, it is set to the {pixmap().width()/2}. If hotY is negative, it is set to the {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.
| QCursor::QCursor | ( | const QCursor & | c | ) |
Constructs a copy of the cursor c.
| QCursor::~QCursor | ( | ) |
Destructs the cursor.
Destroys the cursor.
| QCursor::QCursor | ( | ) |
| QCursor::QCursor | ( | int | shape | ) |
| QCursor::QCursor | ( | const QCursor & | ) |
| QCursor::~QCursor | ( | ) |
| const QBitmap * QCursor::bitmap | ( | ) | const |
Returns the cursor bitmap, or 0 if it is one of the standard cursors.
| const QBitmap* QCursor::bitmap | ( | ) | const |
| void QCursor::cleanup | ( | ) | [static] |
Internal function that deinitializes the predefined cursors. This function is called from the QApplication destructor.
| static void QCursor::cleanup | ( | ) | [static] |
| QPoint QCursor::hotSpot | ( | ) | const |
| QPoint QCursor::hotSpot | ( | ) | const |
Returns the cursor hot spot, or (0,0) if it is one of the standard cursors.
Returns the cursor hot spot, or (0, 0) if it is one of the standard cursors.
| static void QCursor::initialize | ( | ) | [static] |
| void QCursor::initialize | ( | ) | [static] |
Internal function that initializes the predefined cursors. This function is called from the QApplication constructor.
| const QBitmap* QCursor::mask | ( | ) | const |
| const QBitmap * QCursor::mask | ( | ) | const |
Returns the cursor bitmap mask, or 0 if it is one of the standard cursors.
Assigns c to this cursor and returns a reference to this cursor.
| static QPoint QCursor::pos | ( | ) | [static] |
| QPoint QCursor::pos | ( | ) | [static] |
Returns the position of the cursor (hot spot) in global screen coordinates.
You can call QWidget::mapFromGlobal() to translate it to widget coordinates.
| static void QCursor::setPos | ( | const QPoint & | ) | [static] |
| void QCursor::setPos | ( | const QPoint & | p | ) | [inline, static] |
Esta es una función miembro sobrecargada que se suministra por conveniencia. Difiere de la anterior función solamente en los argumentos que acepta.
Moves the cursor (hot spot) to the global screen position x and y.
You can call QWidget::mapToGlobal() to translate widget coordinates to global screen coordinates.
Moves the cursor (hot spot) to the global screen position (x, y).
You can call QWidget::mapToGlobal() to translate widget coordinates to global screen coordinates.
| void QCursor::setShape | ( | int | shape | ) |
Sets the cursor to the shape identified by shape.
ArrowCursor - standard arrow cursor UpArrowCursor - upwards arrow WaitCursor - hourglass/watch IbeamCursor - ibeam/text entry SizeVerCursor - vertical resize SizeHorCursor - horizontal resize SizeBDiagCursor - diagonal resize (/) SizeFDiagCursor - diagonal resize (\) SizeAllCursor - all directions resize BlankCursor - blank/invisible cursor SplitVCursor - vertical splitting SplitHCursor - horziontal splitting PointingHandCursor - a pointing hand ForbiddenCursor - a slashed circle BitmapCursor - userdefined bitmap cursor These correspond to the predefined global QCursor objects.
Sets the cursor to the shape identified by shape.
See CursorShape for the list of cursor shapes.
| void QCursor::setShape | ( | int | ) |
| int QCursor::shape | ( | ) | const |
Returns the cursor shape identifer. The return value is one of following values (cast to an int)
ArrowCursor - standard arrow cursor UpArrowCursor - upwards arrow CrossCursor - crosshair WaitCursor - hourglass/watch IbeamCursor - ibeam/text entry SizeVerCursor - vertical resize SizeHorCursor - horizontal resize SizeBDiagCursor - diagonal resize (/) SizeFDiagCursor - diagonal resize (\) SizeAllCursor - all directions resize BlankCursor - blank/invisible cursor SplitVCursor - vertical splitting SplitHCursor - horziontal splitting PointingHandCursor - a pointing hand ForbiddenCursor - a slashed circle BitmapCursor - userdefined bitmap cursor These correspond to the predefined global QCursor objects.
Returns the cursor shape identifier. The return value is one of the CursorShape enum values (cast to an int).
| int QCursor::shape | ( | ) | const |
| QDataStream & operator<< | ( | QDataStream & | s, |
| const QCursor & | c | ||
| ) | [related] |
Writes the cursor c to the stream s.
| QDataStream & operator>> | ( | QDataStream & | s, |
| QCursor & | c | ||
| ) | [related] |
Reads a cursor from the stream s and sets c to the read data.
1.7.4