324155cd1e
Gregory Nutt is has submitted the SGA Uros Platise has submitted the ICLA Ken Pettit has submitted the ICLA Sebastien Lorquet has submitted the ICLA Pierre-Noel Bouteville has submitted the ICLA as a result we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
281 lines
10 KiB
C++
281 lines
10 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// apps/graphics/twm4nx/src/cwindowevent.hxx
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//
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// Licensed to the Apache Software Foundation (ASF) under one or more
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// contributor license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright ownership. The
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// ASF licenses this file to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance with the
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// License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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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 <cstdbool>
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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_events.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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namespace Twm4Nx
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{
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// This structure provides information to support application events
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struct SAppEvents
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{
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FAR void *eventObj; /**< Object reference that accompanies events */
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nxgl_coord_t minWidth; /**< The minimum width of the window */
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uint16_t redrawEvent; /**< Redraw event ID */
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uint16_t resizeEvent; /**< Resize event ID */
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uint16_t mouseEvent; /**< Mouse/touchscreen event ID */
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uint16_t kbdEvent; /**< Keyboard event ID */
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uint16_t closeEvent; /**< Window close event ID */
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uint16_t deleteEvent; /**< Window delete event ID */
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};
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/**
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* This abstract base class provides add on methods to support movement
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* of a window.
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*/
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class IEventTap
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{
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public:
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/**
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* A virtual destructor is required in order to override the ITextBox
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* destructor. We do this because if we delete ITextBox, we want the
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* destructor of the class that inherits from ITextBox to run, not this
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* one.
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*
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* CAREFUL: All of these methods will run on the thread of execution
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* of the listener thread. The safest design for the implementation
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* of these methods would be to send a message to main Twm4Nx thread
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* event handler for movement processing.
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*/
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virtual ~IEventTap(void)
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{
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}
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/**
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* This function is called when there is any movement of the mouse or
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* touch position that would indicate that the object is being moved.
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*
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* @param pos The current mouse/touch X/Y position in toolbar relative
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* coordinates.
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* @param arg The user-argument provided that accompanies the callback
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* @return True: if the movement event was processed; false it was
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* ignored. The event should be ignored if there is not actually
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* a movement event in progress
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*/
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virtual bool moveEvent(FAR const struct nxgl_point_s &pos,
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uintptr_t arg) = 0;
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/**
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* This function is called if the mouse left button is released or
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* if the touchscreen touch is lost. This indicates that the
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* movement sequence is complete.
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*
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* @param pos The last mouse/touch X/Y position in toolbar relative
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* coordinates.
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* @param arg The user-argument provided that accompanies the callback
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* @return True: If the movement event was processed; false it was
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* ignored. The event should be ignored if there is not actually
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* a movement event in progress
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*/
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virtual bool dropEvent(FAR const struct nxgl_point_s &pos,
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uintptr_t arg) = 0;
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/**
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* Is the tap active?
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*
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* @param arg The user-argument provided that accompanies the callback
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* @return True: If the tap is enabled.
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*/
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virtual bool isActive(uintptr_t arg) = 0;
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/**
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* Enable/disable the tap.
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*
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* True is provided when (1) isActive() returns false, but (2) a mouse
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* report with a left-click is received.
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* False is provided when (1) isActive() returns true, but (2) a mouse
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* report without a left-click is received.
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*
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* In the latter is redundant since dropEvent() will be called immediately
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* afterward.
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*
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* @param pos. The mouse position at the time of the click or release
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* @param enable. True: Enable movement
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* @param arg The user-argument provided that accompanies the callback
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*/
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virtual void enableMovement(FAR const struct nxgl_point_s &pos,
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bool enable, uintptr_t arg) = 0;
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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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FAR void *m_clientWindow; /**< The client window instance */
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mqd_t m_eventq; /**< NxWidget event message queue */
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struct SAppEvents m_appEvents; /**< Application event information */
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// Dragging
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FAR IEventTap *m_tapHandler; /**< Event tap handlers (may be NULL) */
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uintptr_t m_tapArg; /**< User argument associated with callback */
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// Override CWidgetEventHandler virtual methods ///////////////////////
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/**
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* Handle a NX window redraw request event
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*
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* @param nxRect The region in the window to be redrawn
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* @param more More redraw requests will follow
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*/
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void handleRedrawEvent(FAR const nxgl_rect_s *nxRect, bool more);
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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(FAR const struct nxgl_point_s *pos,
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uint8_t buttons);
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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 client The client window instance.
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* @param events Describes the application event configuration
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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, FAR void *client,
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FAR const struct SAppEvents &events,
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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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* Register an IEventTap instance to provide callbacks when mouse
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* movement is received. A mouse movement with the left button down
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* or a touchscreen touch movement are treated as a drag event.
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* Release of the mouse left button or loss of the touchscreen touch
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* is treated as a drop event.
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*
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* @param tapHandler A reference to the IEventTap callback interface.
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* @param arg The argument returned with the IEventTap callbacks.
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*/
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inline void installEventTap(FAR IEventTap *tapHandler, uintptr_t arg)
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{
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m_tapHandler = tapHandler;
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m_tapArg = arg;
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}
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/**
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* Return the installed event tap. This is useful if you want to
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* install a different event tap, then restore the event tap returned
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* by this method when you are finished.
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*
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* @param tapHandler The location to return IEventTap callback interface.
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* @param arg The loation to return the IEventTap argument
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*/
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inline void getEventTap(FAR IEventTap *&tapHandler, uintptr_t &arg)
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{
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m_tapHandler = tapHandler;
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m_tapArg = arg;
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}
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/**
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* Modify event handlers.
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*
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* @param events Describes the application event configuration
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* @return True is returned on success
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*/
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inline bool configureEvents(FAR const struct SAppEvents &events)
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{
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m_appEvents.eventObj = events.eventObj; // Event object reference
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m_appEvents.redrawEvent = events.redrawEvent; // Redraw event ID
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m_appEvents.resizeEvent = events.resizeEvent; // Resize event ID
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m_appEvents.mouseEvent = events.mouseEvent; // Mouse/touchscreen event ID
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m_appEvents.kbdEvent = events.kbdEvent; // Keyboard event ID
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m_appEvents.closeEvent = events.closeEvent; // Window close event ID
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m_appEvents.deleteEvent = events.deleteEvent; // Window delete event ID
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return true;
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}
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};
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}
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#endif // __APPS_INCLUDE_GRAPHICS_TWM4NX_CWINDOWEVENT_HXX
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