950b4cb604
version 1.0.10 to NuttX NX windows server. No, a port is not the right word. It is a re-design of TWM from the inside out to work with the NuttX NX server. The name Twm4Nx reflects this legacy. But Twm4Nx is more a homage to TWM than a port of TWM. The original TWM was based on X11 which provides a rich set of features. TWM provided titlebars, shaped windows, several forms of icon management, user-defined macro functions, click-to-type and pointer-driven keyboard focus, graphic contexts, and user-specified key and pointer button bindings, etc. Twm4Nx, on the other hand is based on the NuttX NX server which provides comparatively minimal support. Additional drawing support comes from the NuttX NxWidgets library (which necessitated the change to C++). Twm4Nx is greatly stripped down and targeted on small embedded systems with minimal resources. For example, no assumption is made about the availability of a file system; no .twmrc file is used. Bitmaps are not used (other than for fonts). The TWM license is, I believe compatible with the BSD license used by NuttX. The origin TWM license required notice of copyrights within each file and a full copy of the original license which you can find in the COPYING file. within this directory. STATUS: This port was brutal. Much TWM logic was removed because it depending on X11 features (or just because I could not understand how to use it). The logic is partial. A lot more needs to be done to have a complete system (hence, it is marked EXPERIMENTAL). The kinds of things that need to done are: 1. Update some logic that is only fragmentary for how like resizing, and menus. 2. Integrate NxWidgets into the windows: The resize menu needs a CLabel, the menus are CListBox'es, but not completely integrated, the Icon Manager needs to be a button array. 3. Resit Icons. They are windows now, but need to be compound widgets lying on the background. 4. Widget events are only partially integrated. A lot more needs to be done. A partial change to thoe event system that hints at the redesign is in place but it is far from complete.
146 lines
4.9 KiB
C++
146 lines
4.9 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// apps/graphics/twm4nx/src/cwindowevent.hxx
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// Shim to manage the interface between NX messages and NxWidgets
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//
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// Copyright (C) 2019 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 nor the names of its contributors may be
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// 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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#ifndef __APPS_INCLUDE_GRAPHICS_TWM4NX_CWINDOWEVENT_HXX
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#define __APPS_INCLUDE_GRAPHICS_TWM4NX_CWINDOWEVENT_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 <sys/types.h>
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#include <mqueue.h>
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#include "graphics/nxwidgets/cwindoweventhandler.hxx"
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#include "graphics/nxwidgets/cwidgetstyle.hxx"
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#include "graphics/nxwidgets/cwidgetcontrol.hxx"
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#include "graphics/twm4nx/twm4nx_widgetevents.hxx"
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#include "graphics/twm4nx/ctwm4nx.hxx"
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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 Twm4Nx
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{
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/**
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* The class CWindowEvent integrates the widget control with some special
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* handling of mouse and keyboard inputs needs by NxWM. It use used
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* in place of CWidgetControl whenever an NxWM window is created.
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*
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* CWindowEvent cohabitates with CWidgetControl only because it needs the
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* CWidgetControl as an argument in its messaging.
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*/
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class CWindowEvent : public NXWidgets::CWindowEventHandler,
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public NXWidgets::CWidgetControl
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{
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private:
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FAR CTwm4Nx *m_twm4nx; /**< Cached instance of CTwm4Nx */
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mqd_t m_eventq; /**< NxWidget event message queue */
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/**
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* Send the EVENT_MSG_POLL input event message to the Twm4Nx event loop.
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*/
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void sendInputEvent(void);
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// Override CWidgetEventHandler virutal methods ///////////////////////
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#ifdef CONFIG_NX_XYINPUT
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/**
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* Handle an NX window mouse input event.
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*/
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void handleMouseEvent(void);
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#endif
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#ifdef CONFIG_NX_KBD
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/**
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* Handle a NX window keyboard input event.
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*/
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void handleKeyboardEvent(void);
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#endif
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/**
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* Handle a NX window blocked event
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*
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* @param arg - User provided argument (see nx_block or nxtk_block)
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*/
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void handleBlockedEvent(FAR void *arg);
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public:
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/**
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* CWindowEvent Constructor
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*
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* @param twm4nx. The Twm4Nx session instance.
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* @param style The default style that all widgets on this display
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* should use. If this is not specified, the widget will use the
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* values stored in the defaultCWidgetStyle object.
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*/
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CWindowEvent(FAR CTwm4Nx *twm4nx,
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FAR const NXWidgets::CWidgetStyle *style =
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(const NXWidgets::CWidgetStyle *)NULL);
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/**
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* CWindowEvent Destructor.
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*/
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~CWindowEvent(void);
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/**
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* Handle MSG events.
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*
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* @param msg. The received system MSG event message.
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* @return True if the message was properly handled. false is
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* return on any failure.
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*/
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static bool event(FAR struct SEventMsg *msg);
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};
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}
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#endif // __cplusplus
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#endif // __APPS_INCLUDE_GRAPHICS_TWM4NX_CWINDOWEVENT_HXX
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