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With these changes, the main menu appears when any location on the background no occupied by an icon is clicked.

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apps/graphics/nxwidgets:  CWidgetControl::handleLeftClick now returns a value to indicate if the click was actually processed or not.  CWidgetControl::pollMouseEvents:  Correct return value.

apps/graphics/twm4nx:  CBackground::event():  Implement logic to handle a left click on the background and to bring up the main Menu.  CWindowEvent: Extend message to distinguish between keyboard and mouse input.  Mouse position and buttons now accompany the mouse input data. CMenus: Add methods to query and control the visibility of the menu.
This commit is contained in:
Gregory Nutt 2019-05-08 15:28:06 -06:00
parent 9e1257deed
commit 944fd507fe
13 changed files with 331 additions and 131 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
graphics/nxwidgets/src/cwidgetcontrol.cxx
View File

@ -737,9 +737,11 @@ uint32_t CWidgetControl::elapsedTime(FAR const struct timespec *startTime)
* @param x Click xcoordinate.
* @param y Click ycoordinate.
* @param widget Pointer to a specific widget or NULL.
* @return True if is a widget responds to the left click
*/
void CWidgetControl::handleLeftClick(nxgl_coord_t x, nxgl_coord_t y, CNxWidget *widget)
bool CWidgetControl::handleLeftClick(nxgl_coord_t x, nxgl_coord_t y,
CNxWidget *widget)
{
// Working with a specific widget or the whole structure?
@ -751,7 +753,7 @@ void CWidgetControl::handleLeftClick(nxgl_coord_t x, nxgl_coord_t y, CNxWidget *
{
if (m_widgets[i]->click(x, y))
{
return;
return true;
}
}
}
@ -759,8 +761,10 @@ void CWidgetControl::handleLeftClick(nxgl_coord_t x, nxgl_coord_t y, CNxWidget *
{
// One widget
(void)widget->click(x, y);
return widget->click(x, y);
}
return false;
}
/**
@ -784,23 +788,29 @@ void CWidgetControl::processDeleteQueue(void)
*
* @param widget. Specific widget to poll. Use NULL to run the
* all widgets in the window.
* @return True means a mouse event occurred
* @return True means an interesting mouse event occurred
*/
bool CWidgetControl::pollMouseEvents(CNxWidget *widget)
{
#ifdef CONFIG_NX_XYINPUT
bool mouseEvent = true; // Assume that an interesting mouse event occurred
bool mouseEvent = false; // Assume that no interesting mouse event occurred
// All widgets
// Left click event for all widgets
if (m_xyinput.leftPressed)
{
// Handle a new left button press event
handleLeftClick(m_xyinput.x, m_xyinput.y, widget);
if (handleLeftClick(m_xyinput.x, m_xyinput.y, widget))
{
mouseEvent = true;
}
}
else if (m_xyinput.leftDrag)
// Drag event for the clicked widget
if (!mouseEvent && m_xyinput.leftDrag)
{
// The left button is still being held down
@ -811,19 +821,18 @@ bool CWidgetControl::pollMouseEvents(CNxWidget *widget)
m_clickedWidget->drag(m_xyinput.x, m_xyinput.y,
m_xyinput.x - m_xyinput.lastX,
m_xyinput.y - m_xyinput.lastY);
mouseEvent = true;
}
}
else if (m_clickedWidget != (CNxWidget *)NULL)
// Check for release event on the clicked widget
if (!mouseEvent && m_clickedWidget != (CNxWidget *)NULL)
{
// Mouse left button release event
m_clickedWidget->release(m_xyinput.x, m_xyinput.y);
}
else
{
// No interesting mouse events
mouseEvent = false;
mouseEvent = true;
}
// Clear all press and release events once they have been processed

4
graphics/twm4nx/README.txt
View File

@ -54,5 +54,7 @@ STATUS
The Icon Manager window can be grabbed by the toolbar title and moved
about on the window (the icon grab'n'move does not work however).
Further progress depends upon getting a main menu in place. The main
menu should come up on any click on a visible region of the background.
menu does now come up on any click on a visible region of the
background, but the menu is not complete enough to be usable; it needs
some applications to start and a CTextBox widget.

136
graphics/twm4nx/src/cbackground.cxx
View File

@ -40,6 +40,9 @@
#include <nuttx/config.h>
#include <cfcntl>
#include <cerrno>
#include <nuttx/nx/nxglib.h>
#include "graphics/nxwidgets/cscaledbitmap.hxx"
@ -52,6 +55,7 @@
#include "graphics/twm4nx/twm4nx_config.hxx"
#include "graphics/twm4nx/cwindowevent.hxx"
#include "graphics/twm4nx/cicon.hxx"
#include "graphics/twm4nx/cmainmenu.hxx"
#include "graphics/twm4nx/cbackground.hxx"
/////////////////////////////////////////////////////////////////////////////
@ -69,6 +73,7 @@ using namespace Twm4Nx;
CBackground::CBackground(FAR CTwm4Nx *twm4nx)
{
m_twm4nx = twm4nx; // Save the session instance
m_eventq = (mqd_t)-1; // No NxWidget event message queue yet
m_backWindow = (NXWidgets::CBgWindow *)0; // No background window yet
m_backImage = (NXWidgets::CImage *)0; // No background image yet
}
@ -79,30 +84,9 @@ CBackground::CBackground(FAR CTwm4Nx *twm4nx)
CBackground::~CBackground(void)
{
// Delete the background
// Free resources helf by the background
if (m_backWindow != (NXWidgets::CBgWindow *)0)
{
// Delete the contained widget control. We are responsible for it
// because we created it
NXWidgets::CWidgetControl *control = m_backWindow->getWidgetControl();
if (control != (NXWidgets::CWidgetControl *)0)
{
delete control;
}
// Then delete the background
delete m_backWindow;
}
// Delete the background image
if (m_backImage != (NXWidgets::CImage *)0)
{
delete m_backImage;
}
cleanup();
}
/**
@ -119,12 +103,25 @@ bool CBackground::
{
twminfo("Create the background window\n");
// Open a message queue to send fully digested NxWidget events.
FAR const char *mqname = m_twm4nx->getEventQueueName();
m_eventq = mq_open(mqname, O_WRONLY | O_NONBLOCK);
if (m_eventq == (mqd_t)-1)
{
twmerr("ERROR: Failed open message queue '%s': %d\n",
mqname, errno);
return false;
}
// Create the background window (if we have not already done so)
if (m_backWindow == (NXWidgets::CBgWindow *)0 &&
!createBackgroundWindow())
{
twmerr("ERROR: Failed to create the background window\n");
cleanup();
return false;
}
@ -135,8 +132,7 @@ bool CBackground::
if (!createBackgroundImage(sbitmap))
{
twmerr("ERROR: Failed to create the background image\n");
delete m_backWindow;
m_backWindow = (NXWidgets::CBgWindow *)0;
cleanup();
return false;
}
@ -246,18 +242,60 @@ bool CBackground::event(FAR struct SEventMsg *eventmsg)
bool success = true;
switch (eventmsg->eventID)
{
case EVENT_BACKGROUND_POLL: // Poll for icon events
case EVENT_BACKGROUND_XYINPUT: // Poll for icon mouse/touch events
{
// This event message is sent from CWindowEvent whenever mouse,
// touchscreen, or keyboard entry events are received in the
// background window.
NXWidgets::CWidgetControl *control =
m_backWindow->getWidgetControl();
// pollEvents() returns true if any interesting event occurred.
// pollEvents() returns true if any interesting event occurred
// within a widget that is associated with the background window.
// false is not a failure.
(void)control->pollEvents();
if (!control->pollEvents())
{
// If there is no interesting widget event, then this might be
// a background click. In that case, we should bring up the
// main menu (if it is not already up).
// Is the main menu already up? Was the mouse left button
// pressed?
FAR struct SXyInputEventMsg *xymsg =
(FAR struct SXyInputEventMsg *)eventmsg;
FAR CMainMenu *cmain = m_twm4nx->getMainMenu();
if (!cmain->isVisible() &&
(xymsg->buttons & MOUSE_BUTTON_1) != 0)
{
// Bring up the main menu
struct SEventMsg outmsg;
outmsg.eventID = EVENT_MAINMENU_SELECT;
outmsg.pos.x = eventmsg->pos.x;
outmsg.pos.y = eventmsg->pos.y;
outmsg.context = EVENT_CONTEXT_BACKGROUND;
outmsg.handler = (FAR CTwm4NxEvent *)0;
outmsg.obj = (FAR void *)this;
int ret = mq_send(m_eventq, (FAR const char *)&outmsg,
sizeof(struct SEventMsg), 100);
if (ret < 0)
{
twmerr("ERROR: mq_send failed: %d\n", ret);
}
}
}
}
break;
case EVENT_WINDOW_KBDINPUT: // Poll for icon keyboard events
break; // There aren't any
case EVENT_BACKGROUND_REDRAW: // Redraw the background
{
FAR struct SRedrawEventMsg *redrawmsg =
@ -417,3 +455,45 @@ bool CBackground::
m_backImage->redraw();
return true;
}
/**
* Release resources held by the background.
*/
void CBackground::cleanup(void)
{
// Close the NxWidget event message queue
if (m_eventq != (mqd_t)-1)
{
(void)mq_close(m_eventq);
m_eventq = (mqd_t)-1;
}
// Delete the background
if (m_backWindow != (NXWidgets::CBgWindow *)0)
{
// Delete the contained widget control. We are responsible for it
// because we created it
NXWidgets::CWidgetControl *control = m_backWindow->getWidgetControl();
if (control != (NXWidgets::CWidgetControl *)0)
{
delete control;
}
// Then delete the background
delete m_backWindow;
m_backWindow = (NXWidgets::CBgWindow *)0;
}
// Delete the background image
if (m_backImage != (NXWidgets::CImage *)0)
{
delete m_backImage;
m_backImage = (NXWidgets::CImage *)0;
}
}

21
graphics/twm4nx/src/cmainmenu.cxx
View File

@ -75,7 +75,7 @@ CMainMenu::CMainMenu(FAR CTwm4Nx *twm4nx)
* CMainMenu Destructor
*/
CMainMenu:: ~CMainMenu(void)
CMainMenu::~CMainMenu(void)
{
if (m_mainMenu != (FAR CMenus *)0)
{
@ -172,9 +172,24 @@ bool CMainMenu::event(FAR struct SEventMsg *eventmsg)
switch (eventmsg->eventID)
{
// This event is sent from CBackground when a left mouse click
// is received in the background window (and not on an icon)
case EVENT_MAINMENU_SELECT: // Main menu selection
#warning Missing logic
success = false;
// Check if the main menu is already visible
if (!m_mainMenu->isVisible())
{
// No.. then make it visible now
// REVISIT: Need to reset the menu to its initial state
// REVISIT: Need to position the main menu as close as
// possible to the click position in eventmsg.
m_mainMenu->show(); // Make the main menu visible
}
break;
default:
success = false;

4
graphics/twm4nx/src/cmenus.cxx
View File

@ -101,6 +101,7 @@ CMenus::CMenus(CTwm4Nx *twm4nx)
m_nMenuItems = 0; // No menu items yet
m_menuDepth = 0; // No menus up
m_entryHeight = 0; // Menu entry height
m_visible = false; // Menu not visible
m_menuPull = false; // No pull right entry
// Windows
@ -123,7 +124,8 @@ CMenus::~CMenus(void)
/**
* CMenus Initializer. Performs the parts of the CMenus construction
* that may fail.
* that may fail. The menu window is created but is not initially
* visible. Use the show() method to make the menu visible.
*
* @param name The name of the menu
* @result True is returned on success

119
graphics/twm4nx/src/cwindowevent.cxx
View File

@ -33,6 +33,38 @@
//
/////////////////////////////////////////////////////////////////////////////
// The logic path for mouse/touchscreen input is tortuous but flexible:
//
// 1. A listener thread receives mouse or touchscreen input and injects
// that into NX via nx_mousein
// 2. In the multi-user mode, this will send a message to the NX server
// 3. The NX server will determine which window gets the mouse input
// and send a window event message to the NX listener thread.
// 4. The NX listener thread receives a windows event. The NX listener thread
// is part of CTwm4Nx and was created when NX server connection was
// established. This event may be a positional change notification, a
// redraw request, or mouse or keyboard input. In this case, mouse input.
// 5. The NX listener thread handles the message by calling nx_eventhandler().
// nx_eventhandler() dispatches the message by calling a method in the
// NXWidgets::CCallback instance associated with the window.
// NXWidgets::CCallback is a part of the CWidgetControl.
// 6. NXWidgets::CCallback calls into NXWidgets::CWidgetControl to process
// the event.
// 7. NXWidgets::CWidgetControl records the new state data and raises a
// window event.
// 8. NXWidgets::CWindowEventHandlerList will give the event to this method
// NxWM::CWindowEvent.
// 9. This NxWM::CWindowEvent method will send a message to the Event
// loop running in the Twm4Nx main thread.
// 10. The Twm4Nx main thread will call the CWindowEvent::event() method
// which
// 11. Finally call pollEvents() to execute whatever actions the input event
// should trigger.
// 12. This might call an event handler in and overrident method of
// CWidgetEventHandler which will again notify the Event loop running
// in the Twm4Nx main thread. The event will, finally be delivered
// to the recipient in its fully digested and decorated form.
/////////////////////////////////////////////////////////////////////////////
// Included Files
/////////////////////////////////////////////////////////////////////////////
@ -118,59 +150,6 @@ CWindowEvent::~CWindowEvent(void)
removeWindowEventHandler(this);
}
/**
* Send the EVENT_MSG_POLL input event message to the Twm4Nx event loop.
*/
void CWindowEvent::sendInputEvent(void)
{
twminfo("Input...\n");
// The logic path here is tortuous but flexible:
//
// 1. A listener thread receives mouse or touchscreen input and injects
// that into NX via nx_mousein
// 2. In the multi-user mode, this will send a message to the NX server
// 3. The NX server will determine which window gets the mouse input
// and send a window event message to the NX listener thread.
// 4. The NX listener thread receives a windows event. The NX listener thread
// is part of CTwm4Nx and was created when NX server connection was
// established. This event may be a positional change notification, a
// redraw request, or mouse or keyboard input. In this case, mouse input.
// 5. The NX listener thread handles the message by calling nx_eventhandler().
// nx_eventhandler() dispatches the message by calling a method in the
// NXWidgets::CCallback instance associated with the window.
// NXWidgets::CCallback is a part of the CWidgetControl.
// 6. NXWidgets::CCallback calls into NXWidgets::CWidgetControl to process
// the event.
// 7. NXWidgets::CWidgetControl records the new state data and raises a
// window event.
// 8. NXWidgets::CWindowEventHandlerList will give the event to this method
// NxWM::CWindowEvent.
// 9. This NxWM::CWindowEvent method will send a message to the Event
// loop running in the Twm4Nx main thread.
// 10. The Twm4Nx main thread will call the CWindowEvent::event() method
// which
// 11. Finally call pollEvents() to execute whatever actions the input event
// should trigger.
// 12. This might call an event handler in and overrident method of
// CWidgetEventHandler which will again notify the Event loop running
// in the Twm4Nx main thread. The event will, finally be delivered
// to the recipient in its fully digested and decorated form.
struct SNxEventMsg msg;
msg.eventID = m_isBackground ? EVENT_BACKGROUND_POLL : EVENT_WINDOW_POLL;
msg.instance = this;
msg.obj = m_object;
int ret = mq_send(m_eventq, (FAR const char *)&msg,
sizeof(struct SNxEventMsg), 100);
if (ret < 0)
{
twmerr("ERROR: mq_send failed: %d\n", ret);
}
}
/**
* Handle a NX window redraw request event
*
@ -305,9 +284,23 @@ void CWindowEvent::handleMouseEvent(FAR const struct nxgl_point_s *pos,
}
}
// Stimulate an input poll
// Stimulate an XY input poll
sendInputEvent();
twminfo("Mouse Input...\n");
struct SXyInputEventMsg msg;
msg.eventID = m_isBackground ? EVENT_BACKGROUND_XYINPUT : EVENT_WINDOW_XYINPUT;
msg.pos.x = pos->x;
msg.pos.y = pos->y;
msg.buttons = buttons;
msg.obj = m_object;
int ret = mq_send(m_eventq, (FAR const char *)&msg,
sizeof(struct SXyInputEventMsg), 100);
if (ret < 0)
{
twmerr("ERROR: mq_send failed: %d\n", ret);
}
}
#endif
@ -320,9 +313,21 @@ void CWindowEvent::handleKeyboardEvent(void)
{
twminfo("Keyboard input...\n");
// Stimulate an input poll
// Stimulate an keyboard event widget poll
sendInputEvent();
twminfo("Keyboard Input...\n");
struct SNxEventMsg msg;
msg.eventID = m_isBackground ? EVENT_BACKGROUND_KBDINPUT : EVENT_WINDOW_KBDINPUT;
msg.instance = this;
msg.obj = m_object;
int ret = mq_send(m_eventq, (FAR const char *)&msg,
sizeof(struct SNxEventMsg), 100);
if (ret < 0)
{
twmerr("ERROR: mq_send failed: %d\n", ret);
}
}
#endif

13
graphics/twm4nx/src/cwindowfactory.cxx
View File

@ -254,7 +254,18 @@ bool CWindowFactory::event(FAR struct SEventMsg *eventmsg)
switch (eventmsg->eventID)
{
case EVENT_WINDOW_POLL: // Poll for icon events
case EVENT_WINDOW_XYINPUT: // Poll for toolbar mouse/touch events
{
FAR struct SXyInputEventMsg *nxmsg =
(FAR struct SXyInputEventMsg *)eventmsg;
FAR CWindow *cwin = (FAR CWindow *)nxmsg->obj;
DEBUGASSERT(cwin != (FAR CWindow *)0);
success = cwin->pollToolbarEvents();
}
break;
case EVENT_WINDOW_KBDINPUT: // Poll for toolbar keyboard events
{
FAR struct SNxEventMsg *nxmsg =
(FAR struct SNxEventMsg *)eventmsg;

3
include/graphics/nxwidgets/cwidgetcontrol.hxx
View File

@ -253,9 +253,10 @@ namespace NXWidgets
* @param y Click ycoordinate.
* @param widget. Specific widget to poll. Use NULL to run the
* all widgets in the window.
* @return True means an interesting mouse event occurred
*/
void handleLeftClick(nxgl_coord_t x, nxgl_coord_t y, CNxWidget *widget);
bool handleLeftClick(nxgl_coord_t x, nxgl_coord_t y, CNxWidget *widget);
/**
* Get the index of the specified controlled widget.

9
include/graphics/twm4nx/cbackground.hxx
View File

@ -43,6 +43,8 @@
#include <nuttx/config.h>
#include <mqueue.h>
#include "graphics/nxwidgets/nxconfig.hxx"
#include "graphics/nxwidgets/cnxwindow.hxx"
#include "graphics/nxwidgets/cnxserver.hxx"
@ -75,6 +77,7 @@ namespace Twm4Nx
{
protected:
FAR CTwm4Nx *m_twm4nx; /**< Cached CTwm4Nx instance */
mqd_t m_eventq; /**< NxWidget event message queue */
FAR NXWidgets::CBgWindow *m_backWindow; /**< The background window */
FAR NXWidgets::CImage *m_backImage; /**< The background image */
@ -102,6 +105,12 @@ namespace Twm4Nx
bool createBackgroundImage(FAR const struct NXWidgets::SRlePaletteBitmap *sbitmap);
/**
* Release resources held by the background.
*/
void cleanup(void);
public:
/**
* CBackground Constructor

14
include/graphics/twm4nx/cmainmenu.hxx
View File

@ -42,6 +42,10 @@
/////////////////////////////////////////////////////////////////////////////
#include <nuttx/config.h>
#include <nuttx/input/mouse.h>
#include "graphics/twm4nx/ctwm4nxevent.hxx"
#include "graphics/twm4nx/cmenus.hxx"
/////////////////////////////////////////////////////////////////////////////
// Implementation Class Definition
@ -50,7 +54,6 @@
namespace Twm4Nx
{
class CTwm4Nx; // Forward Reference
class CMenus; // Forward Reference
class IApplication; // Forward Reference
struct SEventMsg; // Forward Reference
@ -134,6 +137,15 @@ namespace Twm4Nx
bool addApplication(FAR IApplication *app);
/**
* Return true if the main menu is currently being displayed
*/
inline bool isVisible(void)
{
return m_mainMenu->isVisible();
}
/**
* Handle MAIN MENU events.
*

46
include/graphics/twm4nx/cmenus.hxx
View File

@ -123,6 +123,7 @@ namespace Twm4Nx
uint16_t m_nMenuItems; /**< Number of items in the menu */
uint8_t m_menuDepth; /**< Number of menus up */
bool m_menuPull; /**< Is there a pull right entry? */
bool m_visible; /**< True: The menu is visible */
char m_info[INFO_LINES][INFO_SIZE];
void identify(FAR CWindow *cwin);
@ -266,7 +267,8 @@ namespace Twm4Nx
/**
* CMenus Initializer. Performs the parts of the CMenus construction
* that may fail.
* that may fail. The menu window is created but is not initially
* visible. Use the show() method to make the menu visible.
*
* @param name The menu name
* @result True is returned on success
@ -287,6 +289,48 @@ namespace Twm4Nx
bool addMenuItem(FAR NXWidgets::CNxString &text, FAR CMenus *subMenu,
FAR CTwm4NxEvent *handler, uint16_t event);
/**
* Return true if the main menu is currently being displayed
*/
inline bool isVisible(void)
{
return m_visible;
}
/**
* Make the menu visible.
*
* @return True if the main menu is shown.
*/
inline bool show(void)
{
if (!m_visible)
{
m_visible = m_menuWindow->show();
}
return m_visible;
}
/**
* Hide the menu
*
* @return True if the menu was hidden.
*/
inline bool hide(void)
{
if (m_visible)
{
m_visible = !m_menuWindow->hide();
}
return !m_visible;
}
/**
* Handle MENU events.
*

6
include/graphics/twm4nx/cwindowevent.hxx
View File

@ -149,12 +149,6 @@ namespace Twm4Nx
FAR IDragEvent *m_dragHandler; /**< Drag event handlers (may be NULL) */
uintptr_t m_dragArg; /**< User argument associated with callback */
/**
* Send the EVENT_MSG_POLL input event message to the Twm4Nx event loop.
*/
void sendInputEvent(void);
// Override CWidgetEventHandler virtual methods ///////////////////////
/**

48
include/graphics/twm4nx/twm4nx_widgetevents.hxx
View File

@ -110,8 +110,9 @@ namespace Twm4Nx
// Recipient == BACKGOUND
EVENT_BACKGROUND_POLL = 0x1000, /**< Poll background icons for events */
EVENT_BACKGROUND_REDRAW = 0x1001, /**< Redraw the background */
EVENT_BACKGROUND_XYINPUT = 0x1000, /**< Poll window for widget mouse/touch events */
EVENT_BACKGROUND_KBDINPUT = 0x1001, /**< Poll window for widget keyboard events */
EVENT_BACKGROUND_REDRAW = 0x1002, /**< Redraw the background */
// Recipient == ICONWIDGET
@ -137,14 +138,15 @@ namespace Twm4Nx
// Recipient == WINDOW
EVENT_WINDOW_POLL = 0x6000, /**< Poll window for widget events */
EVENT_WINDOW_FOCUS = 0x6001, /**< Enter modal state */
EVENT_WINDOW_UNFOCUS = 0x6002, /**< Exit modal state */
EVENT_WINDOW_RAISE = 0x6003, /**< Raise window to the top of the heirarchy */
EVENT_WINDOW_LOWER = 0x6004, /**< Lower window to the bottom of the heirarchy */
EVENT_WINDOW_DEICONIFY = 0x6005, /**< De-iconify and raise window */
EVENT_WINDOW_DRAG = 0x6006, /**< Drag window */
EVENT_WINDOW_DELETE = 0x6007, /**< Delete window */
EVENT_WINDOW_XYINPUT = 0x6000, /**< Poll window for widget mouse/touch events */
EVENT_WINDOW_KBDINPUT = 0x6001, /**< Poll window for widget keyboard events */
EVENT_WINDOW_FOCUS = 0x6002, /**< Enter modal state */
EVENT_WINDOW_UNFOCUS = 0x6003, /**< Exit modal state */
EVENT_WINDOW_RAISE = 0x6004, /**< Raise window to the top of the heirarchy */
EVENT_WINDOW_LOWER = 0x6005, /**< Lower window to the bottom of the heirarchy */
EVENT_WINDOW_DEICONIFY = 0x6006, /**< De-iconify and raise window */
EVENT_WINDOW_DRAG = 0x6007, /**< Drag window */
EVENT_WINDOW_DELETE = 0x6008, /**< Delete window */
// Recipient == TOOLBAR
@ -174,12 +176,14 @@ namespace Twm4Nx
};
// Contexts for button press events
// Contexts for button press events. These basically identify the sender
// of the event message.
enum EButtonContext
{
EVENT_CONTEXT_WINDOW = 0,
EVENT_CONTEXT_TOOLBAR,
EVENT_CONTEXT_BACKGROUND,
EVENT_CONTEXT_ICON,
EVENT_CONTEXT_FRAME,
EVENT_CONTEXT_ICONMGR,
@ -189,8 +193,8 @@ namespace Twm4Nx
};
/**
* This type represents a generic message containing all possible,
* message-specific options (wasteful, but a lot easier).
* This type represents a generic messages, particularly button press
* or released events.
*/
struct SEventMsg
@ -203,7 +207,7 @@ namespace Twm4Nx
};
/**
* This is the alternative form of the message used with redraw commands
* This message form is used with CWindowEvent redraw commands
*/
struct SRedrawEventMsg
@ -214,8 +218,20 @@ namespace Twm4Nx
};
/**
* This is the alternative form of the message used on in
* CWindowEvent::event()
* This message for is used with CWindowEVent mouse/keyboard input events
*/
struct SXyInputEventMsg
{
uint16_t eventID; /**< Encoded event ID */
struct nxgl_point_s pos; /**< X/Y position */
uint8_t buttons; /**< Bit set of button presses */
FAR void *obj; /**< Context specific reference */
};
/**
* This is the alternative form of the message used by
* CWindowEvent for blocked and keyboard input messages
*/
struct SNxEventMsg