d244b7a11d
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
230 lines
9.0 KiB
C++
230 lines
9.0 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// apps/graphics/twm4nx/include/twm4nx_widgetevents.hxx
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// Twm4Nx Widget Event Handling
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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_TWM4NX_WIDGETEVENTS_HXX
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#define __APPS_INCLUDE_GRAPHICS_TWM4NX_TWM4NX_WIDGETEVENTS_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 <cstdint>
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#include <cstdbool>
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#include <nuttx/nx/nxglib.h>
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#include "graphics/nxwidgets/cwindoweventhandler.hxx"
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/////////////////////////////////////////////////////////////////////////////
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// Preprocessor Definitions
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/////////////////////////////////////////////////////////////////////////////
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#define MAX_EVENT_MSGSIZE sizeof(struct SEventMsg)
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#define MAX_EVENT_PAYLOAD (MAX_EVENT_MSGSIZE - sizeof(uint16_t))
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/////////////////////////////////////////////////////////////////////////////
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// WidgetEvent
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/////////////////////////////////////////////////////////////////////////////
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namespace NXWidgets
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{
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class CNxTkWindow; // Forward reference
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}
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namespace Twm4Nx
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{
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class CWindow; // Forward reference
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class CWindowEvent; // Forward reference
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class CTwm4NxEvent; // Forward reference
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class CTwm4Nx; // Forward reference
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///////////////////////////////////////////////////////////////////////////
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// Public Types
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///////////////////////////////////////////////////////////////////////////
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/**
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* This enumeration identifies the recipient of the event
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*/
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enum EEventRecipient
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{
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EVENT_RECIPIENT_SYSTEM = 0x0000, /**< Twm4Nx system event */
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EVENT_RECIPIENT_BACKGROUND = 0x1000, /**< Background window event */
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EVENT_RECIPIENT_ICONWIDGET = 0x2000, /**< Icon Widget event */
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EVENT_RECIPIENT_ICONMGR = 0x3000, /**< Icon Manager event */
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EVENT_RECIPIENT_MENU = 0x4000, /**< Menu related event */
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EVENT_RECIPIENT_MAINMENU = 0x5000, /**< Menu related event */
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EVENT_RECIPIENT_WINDOW = 0x6000, /**< Window related event */
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EVENT_RECIPIENT_TOOLBAR = 0x7000, /**< Toolbar related event */
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EVENT_RECIPIENT_BORDER = 0x8000, /**< Window border related event */
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EVENT_RECIPIENT_RESIZE = 0x9000, /**< Window resize event */
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EVENT_RECIPIENT_APP = 0xa000, /**< App received event via CTwn4NxEvent */
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EVENT_RECIPIENT_MASK = 0xf000, /**< Used to isolate recipient */
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};
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/**
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* Specific events include the recipient as part of the event ID encoding.
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*/
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enum EEventID
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{
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// Recipient == SYSTEM
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EVENT_SYSTEM_NOP = 0x0000, /**< Null event */
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EVENT_SYSTEM_ERROR = 0x0001, /**< Report system error */
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EVENT_SYSTEM_EXIT = 0x0002, /**< Terminate the Twm4Nx session */
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// Recipient == BACKGOUND
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EVENT_BACKGROUND_POLL = 0x1000, /**< Poll background icons for events */
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EVENT_BACKGROUND_REDRAW = 0x1001, /**< Redraw the background */
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// Recipient == ICONWIDGET
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EVENT_ICONWIDGET_GRAB = 0x2000, /**< Click on toolbar title */
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EVENT_ICONWIDGET_DRAG = 0x2001, /**< Drag window */
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EVENT_ICONWIDGET_UNGRAB = 0x2002, /**< Release click on toolbar */
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// Recipient == ICONMGR
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// Recipient == MENU
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EVENT_MENU_IDENTIFY = 0x4000, /**< Describe the window */
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EVENT_MENU_VERSION = 0x4001, /**< Show the Twm4Nx version */
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EVENT_MENU_ICONIFY = 0x4002, /**< Tool bar minimize button pressed */
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EVENT_MENU_DEICONIFY = 0x4003, /**< Window icon pressed */
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EVENT_MENU_FUNCTION = 0x4004, /**< Perform function on unknown menu */
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EVENT_MENU_TITLE = 0x4005, /**< REVISIT: Really an action not an event */
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EVENT_MENU_ROOT = 0x4006, /**< REVISIT: Popup root menu */
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// Recipient == MAINMENU
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EVENT_MAINMENU_SELECT = 0x5000, /**< Main menu item selection */
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// Recipient == WINDOW
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EVENT_WINDOW_POLL = 0x6000, /**< Poll window for widget events */
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EVENT_WINDOW_FOCUS = 0x6001, /**< Enter modal state */
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EVENT_WINDOW_UNFOCUS = 0x6002, /**< Exit modal state */
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EVENT_WINDOW_RAISE = 0x6003, /**< Raise window to the top of the heirarchy */
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EVENT_WINDOW_LOWER = 0x6004, /**< Lower window to the bottom of the heirarchy */
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EVENT_WINDOW_DEICONIFY = 0x6005, /**< De-iconify and raise window */
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EVENT_WINDOW_DRAG = 0x6006, /**< Drag window */
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EVENT_WINDOW_DELETE = 0x6007, /**< Delete window */
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// Recipient == TOOLBAR
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EVENT_TOOLBAR_GRAB = 0x7000, /**< Click on title widget */
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EVENT_TOOLBAR_UNGRAB = 0x7001, /**< Release click on title widget */
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EVENT_TOOLBAR_MENU = 0x7002, /**< Toolbar menu button released */
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EVENT_TOOLBAR_MINIMIZE = 0x7003, /**< Toolbar minimize button released */
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EVENT_TOOLBAR_RESIZE = 0x7004, /**< Toolbar resize button released */
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EVENT_TOOLBAR_TERMINATE = 0x7005, /**< Toolbar delete button released */
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// Recipient == BORDER
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// Recipient == RESIZE
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EVENT_RESIZE_START = 0x9000, /**< Start window resize */
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EVENT_RESIZE_VERTZOOM = 0x9001, /**< Zoom vertically only */
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EVENT_RESIZE_HORIZOOM = 0x9002, /**< Zoom horizontally only */
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EVENT_RESIZE_FULLZOOM = 0x9003, /**< Zoom both vertically and horizontally */
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EVENT_RESIZE_LEFTZOOM = 0x9004, /**< Zoom left only */
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EVENT_RESIZE_RIGHTZOOM = 0x9005, /**< Zoom right only */
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EVENT_RESIZE_TOPZOOM = 0x9006, /**< Zoom top only */
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EVENT_RESIZE_BOTTOMZOOM = 0x9007, /**< Zoom bottom only */
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// Recipient == APP
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// All application defined events must (1) use recepient == EVENT_RECIPIENT_APP,
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// and (2) provide an instance of CTwm4NxEvent in the SEventMsg structure.
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};
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// Contexts for button press events
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enum EButtonContext
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{
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EVENT_CONTEXT_WINDOW = 0,
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EVENT_CONTEXT_TOOLBAR,
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EVENT_CONTEXT_ICON,
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EVENT_CONTEXT_FRAME,
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EVENT_CONTEXT_ICONMGR,
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EVENT_CONTEXT_NAME,
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EVENT_CONTEXT_IDENTIFY,
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NUM_CONTEXTS
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};
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/**
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* This type represents a generic message containing all possible,
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* message-specific options (wasteful, but a lot easier).
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*/
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struct SEventMsg
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{
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uint16_t eventID; /**< Encoded event ID */
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struct nxgl_point_s pos; /**< X/Y position */
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uint8_t context; /**< Button press context */
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FAR CTwm4NxEvent *handler; /**< App event handler (APP recipient only) */
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FAR void *obj; /**< Window object (CWindow or CIconWidget) */
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};
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/**
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* This is the alternative form of the message used with redraw commands
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*/
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struct SRedrawEventMsg
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{
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uint16_t eventID; /**< Encoded event ID */
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struct nxgl_rect_s rect; /**< Region to be redrawn */
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bool more; /**< True: More redraw requests will follow */
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};
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/**
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* This is the alternative form of the message used on in
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* CWindowEvent::event()
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*/
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struct SNxEventMsg
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{
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uint16_t eventID; /**< Encoded event ID */
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FAR CWindowEvent *instance; /**< X/Y position */
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FAR void *obj; /**< Context specific reference */
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};
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}
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#endif // __APPS_INCLUDE_GRAPHICS_TWM4NX_TWM4NX_WIDGETEVENTS_HXX
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