forked from Archive/PX4-Autopilot
285 lines
8.3 KiB
C++
285 lines
8.3 KiB
C++
/****************************************************************************
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* NxWidgets/libnxwidgets/include/cwidgeteventhandler.hxx
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX, NxWidgets, nor the names of its contributors
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* me be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************
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*
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* Portions of this package derive from Woopsi (http://woopsi.org/) and
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* portions are original efforts. It is difficult to determine at this
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* point what parts are original efforts and which parts derive from Woopsi.
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* However, in any event, the work of Antony Dzeryn will be acknowledged
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* in most NxWidget files. Thanks Antony!
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*
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* Copyright (c) 2007-2011, Antony Dzeryn
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the names "Woopsi", "Simian Zombie" nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Antony Dzeryn ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL Antony Dzeryn BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __INCLUDE_CWIDGETEVENTHANDLER_HXX
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#define __INCLUDE_CWIDGETEVENTHANDLER_HXX
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include "cwidgeteventargs.hxx"
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Implementation Classes
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****************************************************************************/
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#if defined(__cplusplus)
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namespace NXWidgets
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{
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class CNxWidget;
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/**
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* Base CWidgetEventHandler class, intended to be subclassed. Any class that
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* needs to listen for widget events should inherit from this class.
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*/
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class CWidgetEventHandler
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{
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public:
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/**
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* Constructor.
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*/
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inline CWidgetEventHandler() { }
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/**
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* Destructor.
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*/
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virtual inline ~CWidgetEventHandler() { }
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/**
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* Handle a mouse button click event.
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*
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* @param e The event data.
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*/
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virtual void handleClickEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a mouse button drag event.
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*
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* @param e The event data.
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*/
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virtual void handleDragEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a drop event, triggered when the widget has been dragged-and-dropped.
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*
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* @param e The event data.
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*/
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virtual void handleDropEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a mouse button release event that occurred within the bounds of
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* the source widget.
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*
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* @param e The event data.
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*/
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virtual void handleReleaseEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a mouse button release event that occurred outside the bounds of
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* the source widget.
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*
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* @param e The event data.
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*/
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virtual void handleReleaseOutsideEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a key press event.
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*
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* @param e The event data.
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*/
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virtual void handleKeyPressEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a cursor control event.
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*
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* @param e The event data.
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*/
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virtual void handleCursorControlEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a key repeat event.
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*
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* @param e The event data.
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*/
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virtual void handleFocusEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a widget blur event.
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*
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* @param e The event data.
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*/
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virtual void handleBlurEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a widget close event.
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*
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* @param e The event data.
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*/
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virtual void handleCloseEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a widget hide event.
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*
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* @param e The event data.
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*/
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virtual void handleHideEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a widget show event.
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*
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* @param e The event data.
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*/
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virtual void handleShowEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a widget enable event.
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*
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* @param e The event data.
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*/
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virtual void handleEnableEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a widget disable event.
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*
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* @param e The event data.
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*/
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virtual void handleDisableEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a widget value change event.
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*
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* @param e The event data.
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*/
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virtual void handleValueChangeEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a widget resize event.
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*
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* @param e The event data.
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*/
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virtual void handleResizeEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a widget move event.
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*
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* @param e The event data.
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*/
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virtual void handleMoveEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a widget scroll event.
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*
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* @param e The event data.
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*/
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virtual void handleScrollEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a widget double-click event.
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*
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* @param e The event data.
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*/
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virtual void handleDoubleClickEvent(const CWidgetEventArgs &e) { }
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/**
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* Handle a widget action event. For CImage, this is a mouse button pre-release event.
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*
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* @param e The event data.
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*/
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virtual void handleActionEvent(const CWidgetEventArgs &e) { }
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};
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}
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#endif // __cplusplus
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#endif // __INCLUDE_CWIDGETEVENTHANDLER_HXX
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