forked from Archive/PX4-Autopilot
359 lines
11 KiB
C++
359 lines
11 KiB
C++
/****************************************************************************
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* NxWidgets/libnxwidgets/include/cwidgeteventhandlerlist.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_CWIDGETEVENTHANDLERLIST_HXX
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#define __INCLUDE_CWIDGETEVENTHANDLERLIST_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 <nuttx/nx/nxglib.h>
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#include "cwidgeteventhandler.hxx"
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#include "tnxarray.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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class CListDataItem;
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/**
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* List of widget event handlers.
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*/
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class CWidgetEventHandlerList
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{
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protected:
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TNxArray<CWidgetEventHandler*> m_widgetEventHandlers; /**< List of event handlers */
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CNxWidget *m_widget; /**< Owning widget */
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bool m_isEnabled; /**< Indicates if events are active */
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public:
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/**
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* Constructor.
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*
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* @param widget The owning widget.
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*/
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CWidgetEventHandlerList(CNxWidget *widget);
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/**
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* Destructor.
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*/
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~CWidgetEventHandlerList(void) { }
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/**
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* Check if the object raises events or not.
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*
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* @return True if events are enabled.
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*/
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bool isEnabled(void) const;
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/**
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* Get the event handler at the specified index.
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*
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* @param index The index of the event handler.
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* @return The event handler at the specified index.
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*/
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inline CWidgetEventHandler *at(int index) const
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{
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return m_widgetEventHandlers.at(index);
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}
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/**
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* Get the size of the array.
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*
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* @return The size of the array.
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*/
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inline nxgl_coord_t size(void) const
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{
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return m_widgetEventHandlers.size();
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}
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/**
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* Adds a widget event handler. The event handler will receive
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* all events raised by this object.
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* @param eventHandler A pointer to the event handler.
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*/
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void addWidgetEventHandler(CWidgetEventHandler *eventHandler);
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/**
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* Remove a widget event handler.
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*
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* @param eventHandler A pointer to the event handler to remove.
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*/
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void removeWidgetEventHandler(CWidgetEventHandler *eventHandler);
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/**
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* Enables event raising.
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*/
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inline void enable(void)
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{
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m_isEnabled = true;
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}
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/**
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* Disables event raising.
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*/
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inline void disable(void)
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{
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m_isEnabled = false;
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}
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/**
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* Raise a click event to the event handler.
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*
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* @param x The x coordinate of the click.
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* @param y The y coordinate of the click.
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*/
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void raiseClickEvent(nxgl_coord_t x, nxgl_coord_t y);
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/**
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* Raise a double-click event to the event handler.
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*
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* @param x The x coordinate of the click.
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* @param y The y coordinate of the click.
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*/
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void raiseDoubleClickEvent(nxgl_coord_t x, nxgl_coord_t y);
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/**
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* Raise a mouse release event to the event handler.
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*
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* @param x The x coordinate of the release.
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* @param y The y coordinate of the release.
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*/
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void raiseReleaseEvent(nxgl_coord_t x, nxgl_coord_t y);
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/**
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* Raise a mouse release-outside event to the event handler.
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*
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* @param x The x coordinate of the release.
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* @param y The y coordinate of the release.
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*/
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void raiseReleaseOutsideEvent(nxgl_coord_t x, nxgl_coord_t y);
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/**
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* Raise a mouse drag event to the event handler.
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*
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* @param x The x coordinate of the mouse when the drag started.
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* @param y The y coordinate of the mouse when the drag started.
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* @param vX The horizontal distance dragged.
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* @param vY The vertical distance dragged.
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*/
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void raiseDragEvent(nxgl_coord_t x, nxgl_coord_t y,
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nxgl_coord_t vX, nxgl_coord_t vY);
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/**
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* Raise a widget drop event to the event handler.
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*
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* @param x The x coordinate of the mouse when the drop occurred.
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* @param y The y coordinate of the mouse when the drop occurred.
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*/
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void raiseDropEvent(nxgl_coord_t x, nxgl_coord_t y);
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/**
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* Raise a key press event to the event handler.
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*
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* @param key The character code of the key that caused the event.
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*/
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void raiseKeyPressEvent(nxwidget_char_t key);
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/**
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* Raise a cursor control event to the event handler.
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*
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* @param cursorControl The cursor control code that caused the event.
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*/
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void raiseCursorControlEvent(ECursorControl cursorControl);
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/**
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* Raise a focus event to the event handler.
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*/
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void raiseFocusEvent(void);
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/**
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* Raise a blur event to the event handler.
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*/
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void raiseBlurEvent(void);
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/**
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* Raise a close event to the event handler.
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*/
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void raiseCloseEvent(void);
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/**
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* Raise a hide event to the event handler.
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*/
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void raiseHideEvent(void);
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/**
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* Raise a show event to the event handler.
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*/
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void raiseShowEvent(void);
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/**
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* Raise an enable event to the event handler.
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*/
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void raiseEnableEvent(void);
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/**
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* Raise a disable event to the event handler.
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*/
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void raiseDisableEvent(void);
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/**
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* Raise a value change event to the event handler.
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*/
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void raiseValueChangeEvent(void);
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/**
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* Raise a resize event to the event handler.
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*
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* @param width The new width of the widget.
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* @param height The new height of the widget.
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*/
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void raiseResizeEvent(nxgl_coord_t width, nxgl_coord_t height);
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/**
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* Raise a move event to the event handler.
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*
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* @param x The new x coordinate of the widget.
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* @param y The new y coordinate of the widget.
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* @param vX The horizontal distance moved.
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* @param vY The vertical distance moved.
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*/
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void raiseMoveEvent(nxgl_coord_t x, nxgl_coord_t y,
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nxgl_coord_t vX, nxgl_coord_t vY);
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/**
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* Raise an action event to the event handler. This should be called
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* when a widget's purpose has been fulfilled. For example, in the case
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* of a button, this event is raised when the button is released within
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* its boundaries. The button has produced a valid click, and thus
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* fulfilled its purpose, so it needs to raise an "action" event.
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*/
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void raiseActionEvent(void);
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/**
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* Raises a scroll event. Fired when the panel scrolls.
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*
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* @param vX Horizontal distance scrolled.
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* @param vY Vertical distance scrolled.
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*/
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void raiseScrollEvent(nxgl_coord_t vX, nxgl_coord_t vY);
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};
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}
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#endif // __cplusplus
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#endif // __INCLUDE_CWIDGETEVENTHANDLERLIST_HXX
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