nuttx-apps/include/graphics/nxwm/cwindowmessenger.hxx
Gregory Nutt d244b7a11d Squashed commit of the following:
apps/graphics/twm4nx:  Additional redesign.  Window draggin now sort of works in an unreliable hurky-gurky way.  More to be done.

    apps/graphics/twm4nx:  First cut at redesigned dragging logic
2019-05-07 16:16:47 -06:00

149 lines
4.7 KiB
C++

/****************************************************************************
* apps/include/graphics/nxwm/cwindowmessenger.hxx
*
* Copyright (C) 2012-2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX, NxWidgets, nor the names of its contributors
* me be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __APPS_INCLUDE_GRAPHICS_NXWM_CWINDOWMESSENGER_HXX
#define __APPS_INCLUDE_GRAPHICS_NXWM_CWINDOWMESSENGER_HXX
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <nuttx/wqueue.h>
#include <nuttx/nx/nxtk.h>
#include <nuttx/nx/nxterm.h>
#include "graphics/nxwidgets/cwindoweventhandler.hxx"
#include "graphics/nxwidgets/cwidgetstyle.hxx"
#include "graphics/nxwidgets/cwidgetcontrol.hxx"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/****************************************************************************
* Implementation Classes
****************************************************************************/
#if defined(__cplusplus)
namespace NxWM
{
/**
* Forward references.
*/
class IApplication;
/**
* The class CWindowMessenger integrates the widget control with some special
* handling of mouse and keyboard inputs needs by NxWM. It use used
* in place of CWidgetControl whenever an NxWM window is created.
*
* CWindowMessenger cohabitates with CWidgetControl only because it needs the
* CWidgetControl as an argument in its messaging.
*/
class CWindowMessenger : public NXWidgets::CWindowEventHandler,
public NXWidgets::CWidgetControl
{
private:
/** Structure that stores data for the work queue callback. */
struct work_state_t
{
work_s work;
CWindowMessenger *windowMessenger;
void *instance;
work_state_t() : work() {}
};
/** Work queue callback functions */
static void inputWorkCallback(FAR void *arg);
static void destroyWorkCallback(FAR void *arg);
#ifdef CONFIG_NX_XYINPUT
/**
* Handle an NX window mouse input event.
*/
void handleMouseEvent(FAR const struct nxgl_point_s *pos, uint8_t buttons);
#endif
#ifdef CONFIG_NX_KBD
/**
* Handle a NX window keyboard input event.
*/
void handleKeyboardEvent(void);
#endif
/**
* Handle a NX window blocked event
*
* @param arg - User provided argument (see nx_block or nxtk_block)
*/
void handleBlockedEvent(FAR void *arg);
public:
/**
* CWindowMessenger Constructor
*
* @param style The default style that all widgets on this display
* should use. If this is not specified, the widget will use the
* values stored in the defaultCWidgetStyle object.
*/
CWindowMessenger(FAR const NXWidgets::CWidgetStyle *style =
(const NXWidgets::CWidgetStyle *)NULL);
/**
* CWindowMessenger Destructor.
*/
~CWindowMessenger(void);
};
}
#endif // __cplusplus
#endif // __APPS_INCLUDE_GRAPHICS_NXWM_CWINDOWMESSENGER_HXX