/****************************************************************************
* apps/include/graphics/nxwm/cnxstart.hxx
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __APPS_INCLUDE_GRAPHICS_NXWM_CSTARTWINDOW_HXX
#define __APPS_INCLUDE_GRAPHICS_NXWM_CSTARTWINDOW_HXX
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <debug.h>
#include "graphics/nxwidgets/tnxarray.hxx"
#include "graphics/nxwm/iapplication.hxx"
#include "graphics/nxwm/capplicationwindow.hxx"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/****************************************************************************
* Abstract Base Classes
****************************************************************************/
#if defined(__cplusplus)
namespace NxWM
{
/**
* Forward references
*/
class CTaskbar;
/**
* Start window message opcodes and format
*/
enum EStartWindowMessageOpcodes
{
MSGID_POSITIONAL_CHANGE = 1, /**< Change in window positional data (not used) */
MSGID_REDRAW_REQUEST, /**< Request to redraw a portion of the window (not used) */
MSGID_MOUSE_INPUT, /**< New mouse input is available */
MSGID_KEYBOARD_INPUT, /**< New keyboard input is available */
MSGID_DESTROY_APP /**< Destroy the application */
};
struct SStartWindowMessage
{
enum EStartWindowMessageOpcodes msg_id; /**< The message opcode */
FAR void *instance; /**< Object instance. */
};
/**
* The well-known name for the Start Window's message queue.
*/
extern FAR const char *g_startWindowMqName;
/**
* This class is the the start window application.
*/
class CStartWindow : public IApplication,
protected IApplicationCallback,
protected NXWidgets::CWidgetEventHandler
{
protected:
/**
* This structure represents an application and its associated icon image
*/
struct SStartWindowSlot
{
IApplicationFactory *app; /**< A reference to the icon */
NXWidgets::CImage *image; /**< The icon image that goes with the application */
};
/**
* CStartWindow state data
*/
CTaskbar *m_taskbar; /**< Reference to the "parent" taskbar */
CApplicationWindow *m_window; /**< Reference to the application window */
TNxArray<struct SStartWindowSlot> m_slots; /**< List of apps in the start window */
struct nxgl_size_s m_iconSize; /**< A box big enough to hold the largest icon */
/**
* This is the start window task. This function receives window events from
* the NX listener threads indirectly through this sequence:
*
* 1. The NX listener thread receives a windows event. The NX listener thread
* which is part of CTaskBar 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.
* 2. 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.
* 3. NXWidgets::CCallback calls into NXWidgets::CWidgetControl to process
* the event.
* 4. NXWidgets::CWidgetControl records the new state data and raises a
* window event.
* 5. NXWidgets::CWindowEventHandlerList will give the event to
* NxWM::CWindowMessenger.
* 6. NxWM::CWindowMessenger will send the a message on a well-known message
* queue.
* 7. This CStartWindow::startWindow task will receive and process that
* message.
*/
static int startWindow(int argc, char *argv[]);
/**
* Called when the window minimize button is pressed.
*/
void minimize(void);
/**
* Called when the window close button is pressed.
*/
void close(void);
/**
* Calculate the icon bounding box
*/
void getIconBounds(void);
/**
* Stop all applications
*/
void removeAllApplications(void);
/**
* Handle a widget action event. For CButtonArray, this is a mouse
* button pre-release event.
*
* @param e The event data.
*/
void handleActionEvent(const NXWidgets::CWidgetEventArgs &e);
public:
/**
* CStartWindow Constructor
*
* @param taskbar. A pointer to the parent task bar instance
* @param window. The window to be used by this application.
*/
CStartWindow(CTaskbar *taskbar, CApplicationWindow *window);
/**
* CStartWindow Constructor
*/
~CStartWindow(void);
/**
* Each implementation of IApplication must provide a method to recover
* the contained CApplicationWindow instance.
*/
IApplicationWindow *getWindow(void) const;
/**
* Get the icon associated with the application
*
* @return An instance if IBitmap that may be used to rend the
* application's icon. This is an new IBitmap instance that must
* be deleted by the caller when it is no long needed.
*/
NXWidgets::IBitmap *getIcon(void);
/**
* Get the name string associated with the application
*
* @return A copy if CNxString that contains the name of the application.
*/
NXWidgets::CNxString getName(void);
/**
* Start the application.
*
* @return True if the application was successfully started.
*/
bool run(void);
/**
* Stop the application.
*/
void stop(void);
/**
* Destroy the application and free all of its resources. This method
* will initiate blocking of messages from the NX server. The server
* will flush the window message queue and reply with the blocked
* message. When the block message is received by CWindowMessenger,
* it will send the destroy message to the start window task which
* will, finally, safely delete the application.
*/
void destroy(void);
/**
* The application window is hidden (either it is minimized or it is
* maximized, but not at the top of the hierarchy)
*/
void hide(void);
/**
* Redraw the entire window. The application has been maximized or
* otherwise moved to the top of the hierarchy. This method is call from
* CTaskbar when the application window must be displayed
*/
void redraw(void);
/**
* Report of this is a "normal" window or a full screen window. The
* primary purpose of this method is so that window manager will know
* whether or not it show draw the task bar.
*
* @return True if this is a full screen window.
*/
bool isFullScreen(void) const;
/**
* Add the application to the start window. The general sequence for
* setting up the start window is:
*
* 1. Call IApplicationFactory::create to a new instance of the application
* 2. Call CStartWindow::addApplication to add the application to the
* start window.
*
* @param app. The new application to add to the start window
* @return true on success
*/
bool addApplication(IApplicationFactory *app);
};
}
#endif // __cplusplus
#endif // __APPS_INCLUDE_GRAPHICS_NXWM_CSTARTWINDOW_HXX