330 lines
9.7 KiB
C++
330 lines
9.7 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// apps/graphics/twm4nx/include/ciconmgr.hxx
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// Icon Manager includes
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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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// Largely an original work but derives from TWM 1.0.10 in many ways:
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//
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// Copyright 1989,1998 The Open Group
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//
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// Please refer to apps/twm4nx/COPYING for detailed copyright information.
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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_CICONMGR_HXX
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#define __APPS_INCLUDE_GRAPHICS_TWM4NX_CICONMGR_HXX
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/////////////////////////////////////////////////////////////////////////////
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// Included Files
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/////////////////////////////////////////////////////////////////////////////
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#include <fcntl.h>
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#include <mqueue.h>
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#include <nuttx/nx/nxglib.h>
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#include "graphics/twm4nx/cwindow.hxx"
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#include "graphics/twm4nx/cmainmenu.hxx"
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#include "graphics/twm4nx/iapplication.hxx"
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#include "graphics/twm4nx/twm4nx_events.hxx"
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/////////////////////////////////////////////////////////////////////////////
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// Implementation Classes
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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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class CButtonArray; // Forward reference
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class CWidgetEventHandler; // Forward reference
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class CWidgetEventArgs; // Forward reference
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struct SRlePaletteBitmap; // Forward reference
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}
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namespace Twm4Nx
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{
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struct SWindowEntry
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{
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FAR struct SWindowEntry *flink; /**< Forward link to next window entry */
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FAR struct SWindowEntry *blink; /**< Backward link to previous window entry */
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FAR CWindow *cwin; /**< The window payload */
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int row; /**< Y position in the button array */
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int column; /**< X position in the button array */
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};
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class CIconMgr : protected NXWidgets::CWidgetEventHandler,
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protected IApplication,
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public CTwm4NxEvent
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{
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private:
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FAR CTwm4Nx *m_twm4nx; /**< Cached Twm4Nx session */
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mqd_t m_eventq; /**< NxWidget event message queue */
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NXWidgets::CNxString m_name; /**< The Icon Manager name */
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FAR struct SWindowEntry *m_head; /**< Head of the window list */
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FAR struct SWindowEntry *m_tail; /**< Tail of the window list */
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FAR struct CWindow *m_window; /**< Parent window */
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FAR NXWidgets::CButtonArray *m_buttons; /**< The contained button array */
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uint16_t m_nWindows; /**< The number of windows in the icon mgr. */
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uint8_t m_nColumns; /**< Fixed number of columns per row */
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uint8_t m_nrows; /**< Number of rows in the button array */
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/**
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* Return the height of one row
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*
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* @return The height of one row
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*/
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nxgl_coord_t getRowHeight(void);
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/**
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* Create and initialize the icon manager window
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*
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* @param name The prefix for this icon manager name
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*/
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bool createIconManagerWindow(FAR const char *prefix);
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/**
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* Create the button array widget
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*/
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bool createButtonArray(void);
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/**
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* Label each button with the window name
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*/
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void labelButtons(void);
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/**
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* Put an allocated entry into an icon manager
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*
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* @param wentry the entry to insert
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*/
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void insertEntry(FAR struct SWindowEntry *wentry,
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FAR CWindow *cwin);
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/**
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* Remove an entry from an icon manager
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*
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* @param wentry the entry to remove
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*/
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void removeEntry(FAR struct SWindowEntry *wentry);
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/**
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* Find an entry in the icon manager
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*
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* @param cwin The window to find
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* @return The incon manager entry (unless an error occurred)
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*/
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FAR struct SWindowEntry *findEntry(FAR CWindow *cwin);
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/**
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* Free window list entry.
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*/
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void freeWEntry(FAR struct SWindowEntry *wentry);
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/**
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* Handle a widget action event, overriding the CWidgetEventHandler
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* method. This will indicate a button pre-release event.
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*
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* @param e The event data.
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*/
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void handleActionEvent(const NXWidgets::CWidgetEventArgs &e);
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/**
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* Return the Main Menu item string. This overrides the method from
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* IApplication
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*
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* @param name The name of the application.
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*/
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inline NXWidgets::CNxString getName(void)
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{
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return m_name;
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}
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/**
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* There is no sub-menu for this Main Menu item. This overrides
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* the method from IApplication.
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*
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* @return This implementation will always return a null value.
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*/
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inline FAR CMenus *getSubMenu(void)
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{
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return (FAR CMenus *)0;
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}
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/**
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* There is no custom event handler. We use the common event handler.
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*
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* @return. null is always returned in this impementation.
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*/
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inline FAR CTwm4NxEvent *getEventHandler(void)
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{
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return (FAR CTwm4NxEvent *)0;
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}
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/**
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* Return the Twm4Nx event that will be generated when the Main Menu
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* item is selected.
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*
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* @return. This function always returns EVENT_ICONMGR_DEICONIFY.
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*/
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inline uint16_t getEvent(void)
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{
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return EVENT_ICONMGR_DEICONIFY;
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}
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public:
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/**
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* CIconMgr Constructor
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*
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* @param twm4nx The Twm4Nx session
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* @param ncolumns The number of columns this icon manager has
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*/
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CIconMgr(CTwm4Nx *twm4nx, uint8_t ncolumns);
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/**
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* CIconMgr Destructor
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*/
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~CIconMgr(void);
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/**
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* Create and initialize the icon manager window.
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*
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* @param name The prefix for this icon manager name
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* @return True on success
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*/
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bool initialize(FAR const char *prefix);
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/**
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* Add Icon Manager menu items to the Main menu. This is really a
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* part of the logic that belongs in initialize() but cannot be
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* executed in that context because it assumes that the Main Menu
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* logic is ready.
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*
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* @return True on success
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*/
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bool addMenuItems(void);
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/**
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* Add a window to an the icon manager
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*
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* @param cwin the TWM window structure
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*/
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bool addWindow(FAR CWindow *cwin);
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/**
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* Remove a window from the icon manager
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*
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* @param cwin the TWM window structure
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*/
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void removeWindow(FAR CWindow *cwin);
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/**
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* Hide the icon manager
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*/
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inline void hide(void)
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{
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if (m_window != (FAR CWindow *)0)
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{
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m_window->iconify();
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}
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}
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/**
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* Get the number of columns
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*/
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inline unsigned int getNumberOfColumns(void)
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{
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return m_nColumns;
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}
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/**
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* Get the current size
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*/
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inline bool getSize(FAR struct nxgl_size_s *size)
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{
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return m_window->getFrameSize(size);
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}
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/**
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* Resize the button array, possibly adjusting the window height
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*
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* @return True if the button array was resized successfully
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*/
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bool resizeIconManager(void);
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/**
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* sort the windows
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*/
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void sort(void);
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/**
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* Handle ICONMGR events.
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*
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* @param eventmsg. The received NxWidget ICONMGR 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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bool event(FAR struct SEventMsg *eventmsg);
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};
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}
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/////////////////////////////////////////////////////////////////////////////
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// Public Function Prototypes
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/////////////////////////////////////////////////////////////////////////////
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#endif // __APPS_INCLUDE_GRAPHICS_TWM4NX_CICONMGR_HXX
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