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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commitce4a32fe52ef09d8f5ff1dd22c001110902b60a2 (patch)
tree5ac38a06f3dde268dc7927dc155896926aaf7012 /kdeui/kcursor.h
downloadtdelibs-ce4a32fe52ef09d8f5ff1dd22c001110902b60a2.tar.gz
tdelibs-ce4a32fe52ef09d8f5ff1dd22c001110902b60a2.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+/* This file is part of the KDE libraries
+ Copyright (C) 1998 Kurt Granroth (granroth@kde.org)
+ 2000 Carsten Pfeiffer <pfeiffer@kde.org>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License version 2 as published by the Free Software Foundation.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+*/
+/*
+ * $Id$
+ *
+ */
+#ifndef _KCURSOR_H
+#define _KCURSOR_H
+
+#include <qcursor.h>
+#include <kdelibs_export.h>
+
+class QWidget;
+
+/**
+ * @short A QCursor wrapper allowing "themed" cursors and auto-hiding cursors.
+ *
+ * A wrapper around QCursor that allows for "themed" cursors.
+ *
+ * Currently, the only themed cursor is a hand shaped cursor.
+ *
+ * A typical usage would be
+ * \code
+ * setCursor(KCursor::handCursor());
+ * \endcode
+ *
+ * @author Kurt Granroth <granroth@kde.org>
+ */
+class KDEUI_EXPORT KCursor : public Qt
+{
+public:
+ /**
+ * Constructor.
+ *
+ * Does not do anything so far.
+ **/
+ KCursor();
+
+ /**
+ * Returns the proper hand cursor according to
+ * the current GUI style (static function).
+ */
+ static QCursor handCursor();
+
+ /**
+ * Returns the proper arrow+hourglass cursor according to
+ * the current GUI style (static function).
+ */
+ static QCursor workingCursor();
+
+ /**
+ * Returns the proper arrow cursor according to
+ * the current GUI style (static function).
+ */
+ static QCursor arrowCursor();
+
+ /**
+ * Returns the proper up arrow cursor according to
+ * the current GUI style (static function).
+ */
+ static QCursor upArrowCursor();
+
+ /**
+ * Returns the proper cross-hair cursor according to
+ * the current GUI style (static function).
+ */
+ static QCursor crossCursor();
+
+ /**
+ * Returns the proper hourglass cursor according to
+ * the current GUI style (static function).
+ */
+ static QCursor waitCursor();
+
+ /**
+ * Returns the proper text cursor according to
+ * the current GUI style (static function).
+ */
+ static QCursor ibeamCursor();
+
+ /**
+ * Returns the proper vertical resize cursor
+ * according to the current GUI style (static function).
+ */
+ static QCursor sizeVerCursor();
+
+ /**
+ * Returns the proper horizontal resize cursor
+ * according to the current GUI style (static function).
+ */
+ static QCursor sizeHorCursor();
+
+ /**
+ * Returns the proper diagonal resize (/) cursor
+ * according to the current GUI style (static function).
+ */
+ static QCursor sizeBDiagCursor();
+
+ /**
+ * Returns the proper diagonal resize (\) cursor
+ * according to the current GUI style (static function).
+ */
+ static QCursor sizeFDiagCursor();
+
+ /**
+ * Returns the proper all-directions resize cursor
+ * according to the current GUI style (static function).
+ */
+ static QCursor sizeAllCursor();
+
+ /**
+ * Returns a blank or invisible cursor (static function).
+ */
+ static QCursor blankCursor();
+
+ /**
+ * Returns a WhatsThis cursor (static function).
+ */
+ static QCursor whatsThisCursor();
+
+ /**
+ * Sets auto-hiding the cursor for widget @p w. Enabling it will result in
+ * the cursor being hidden when
+ * @li a key-event happens
+ * @li there are no key-events for a configured time-frame (see
+ * setHideCursorDelay())
+ *
+ * The cursor will be shown again when the focus is lost or a mouse-event
+ * happens.
+ *
+ * Side effect: when enabling auto-hide, mouseTracking is enabled for the
+ * specified widget, because it's needed to get mouse-move-events. So
+ * don't disable mouseTracking for a widget while using auto-hide for it.
+ *
+ * When disabling auto-hide, mouseTracking will be disabled, so if you need
+ * mouseTracking after disabling auto-hide, you have to reenable
+ * mouseTracking.
+ *
+ * If you want to use auto-hiding for widgets that don't take focus, e.g.
+ * a QCanvasView, then you have to pass all key-events that should trigger
+ * auto-hiding to autoHideEventFilter().
+ */
+ static void setAutoHideCursor( QWidget *w, bool enable );
+
+ /**
+ * Overloaded method for the case where you have an event-filter installed
+ * on the widget you want to enable auto-cursor-hiding.
+ *
+ * In this case set @p customEventFilter to true and call
+ * autoHideEventFilter() from the beginning of your eventFilter().
+ *
+ * @see autoHideEventFilter
+ */
+ static void setAutoHideCursor( QWidget *w, bool enable,
+ bool customEventFilter );
+
+ /**
+ * Sets the delay time in milliseconds for auto-hiding. When no keyboard
+ * events arrive for that time-frame, the cursor will be hidden.
+ *
+ * Default is 5000, i.e. 5 seconds.
+ */
+ static void setHideCursorDelay( int ms );
+
+ /**
+ * @returns the current auto-hide delay time.
+ *
+ * Default is 5000, i.e. 5 seconds.
+ */
+ static int hideCursorDelay();
+
+ /**
+ * KCursor has to install an eventFilter over the widget you want to
+ * auto-hide. If you have an own eventFilter() on that widget and stop
+ * some events by returning true, you might break auto-hiding, because
+ * KCursor doesn't get those events.
+ *
+ * In this case, you need to call setAutoHideCursor( widget, true, true );
+ * to tell KCursor not to install an eventFilter. Then you call this method
+ * from the beginning of your eventFilter, for example:
+ * \code
+ * edit = new KEdit( this, "some edit widget" );
+ * edit->installEventFilter( this );
+ * KCursor::setAutoHideCursor( edit, true, true );
+ *
+ * [...]
+ *
+ * bool YourClass::eventFilter( QObject *o, QEvent *e )
+ * {
+ * if ( o == edit ) // only that widget where you enabled auto-hide!
+ * KCursor::autoHideEventFilter( o, e );
+ *
+ * // now you can do your own event-processing
+ * [...]
+ * }
+ * \endcode
+ *
+ * Note that you must not call KCursor::autoHideEventFilter() when you
+ * didn't enable or after disabling auto-hiding.
+ */
+ static void autoHideEventFilter( QObject *, QEvent * );
+
+private:
+ static QCursor *s_handCursor;
+};
+
+
+#endif // _KCURSOR_H