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GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
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/* $Id: MenuBackend.cpp 1198 2011-06-14 21:08:27Z bhagman $
||
|| @author Alexander Brevig <abrevig@wiring.org.co>
|| @url http://wiring.org.co/
|| @contribution Adrian Brzezinski
|| @contribution Bernhard Benum
|| @contribution Brett Hagman <bhagman@wiring.org.co>
||
|| @description
|| | Provides an easy way of making menus.
|| |
|| | Wiring Cross-platform Library
|| #
||
|| @license Please see cores/Common/License.txt.
||
*/
#include "MenuBackend.h"

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libraries/MenuBackend/MenuBackend.h Normal file
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/* $Id: MenuBackend.h 1231 2011-08-25 10:57:49Z abrevig $
||
|| @author Alexander Brevig <abrevig@wiring.org.co>
|| @url http://wiring.org.co/
|| @contribution Adrian Brzezinski
|| @contribution Bernhard Benum
|| @contribution Brett Hagman <bhagman@wiring.org.co>
|| @contribution Ryan Michael <kerinin@gmail.com>
||
|| @description
|| | Provides an easy way of making menus.
|| |
|| | Wiring Cross-platform Library
|| #
||
|| @license Please see cores/Common/License.txt.
||
*/
#ifndef MENUBACKEND_H
#define MENUBACKEND_H
#if defined(ARDUINO) && ARDUINO >= 100
#include "Arduino.h"
#else
#include "WProgram.h"
#endif
class MenuBackend; //forward declaration of the menu backend
class MenuItem; //forward declaration of the menu item
struct MenuChangeEvent
{
const MenuItem &from;
const MenuItem &to;
};
struct MenuUseEvent
{
MenuItem &item;
};
struct MenuItemChangeEvent
{
const MenuItem &item;
};
struct MenuMoveEvent
{
const MenuItem &item;
};
typedef void (*cb_change)(MenuChangeEvent);
typedef void (*cb_use)(MenuUseEvent);
typedef void (*cb_move)(MenuMoveEvent);
/*
A menu item will be a container for an item that is a part of a menu
Each such item has a logical position in the hierarchy as well as a text and maybe a mnemonic shortkey
*/
class MenuItem
{
public:
const __FlashStringHelper *name;
/*
|| @constructor
|| | Basic item with a name and an optional mnemonic [File (f)]
|| #
||
|| @example
|| | MenuItem file = MenuItem("File",'F');
|| #
||
|| @parameter itemName the name of the item
|| @parameter shortKey the mnemonic 'shortkey'
*/
MenuItem(const __FlashStringHelper *itemName, uint8_t shortKey = 0) : name(itemName), shortkey(shortKey)
{
before = right = after = left = 0;
menuBackend = 0;
}
/*
|| @description
|| | Register a backend for this item to use for callbacks and such
|| #
||
|| @parameter mb the menu backend that controls this item
*/
inline void registerBackend(MenuBackend &mb)
{
menuBackend = &mb;
}
//void use(){} //update some internal data / statistics
/*
|| @description
|| | Get the name of this item
|| #
||
|| @return The name of this item
*/
inline const __FlashStringHelper * getName() const
{
return name;
}
/*
|| @description
|| | Get the shortkey of this item
|| #
||
|| @return The shortkey of this item
*/
inline uint8_t getShortkey() const
{
return shortkey;
}
/*
|| @description
|| | Check to see if this item has a shorkey
|| #
||
|| @return true if this item has a shorkey
*/
inline const bool hasShortkey() const
{
return (shortkey != '\0');
}
/*
|| @description
|| | Check to see if this item has children
|| #
||
|| @return true if the item has children
*/
inline const bool hasChildren() const
{
return (before || right || after || left);
}
/*
|| @description
|| | Get the item 'before' this item
|| #
||
|| @return the item before this
*/
inline MenuItem *getBefore() const
{
return before;
}
/*
|| @description
|| | Get the item 'right' of this item
|| #
||
|| @return the item right of this
*/
inline MenuItem *getRight() const
{
return right;
}
/*
|| @description
|| | Get the item 'after' this item
|| #
||
|| @return the item after this
*/
inline MenuItem *getAfter() const
{
return after;
}
/*
|| @description
|| | Get the item 'left' of this item
|| #
||
|| @return the item left of this
*/
inline MenuItem *getLeft() const
{
return left;
}
//default vertical menu
/*
|| @description
|| | Add an item after this item in the hierarchy
|| #
||
|| @parameter mi the item to add
|| @return the item sent as parameter for chaining
*/
MenuItem &add(MenuItem &mi)
{
return addAfter(mi);
}
/*
|| @description
|| | Add an item before this item in the hierarchy
|| #
||
|| @parameter mi the item to add
|| @return the item sent as parameter for chaining
*/
MenuItem &addBefore(MenuItem &mi)
{
mi.after = this;
before = &mi;
return mi;
}
/*
|| @description
|| | Add an item right to this item in the hierarchy
|| #
||
|| @parameter mi the item to add
|| @return the item sent as parameter for chaining
*/
MenuItem &addRight(MenuItem &mi)
{
mi.left = this;
right = &mi;
return mi;
}
/*
|| @description
|| | Add an item after this item in the hierarchy
|| #
||
|| @parameter mi the item to add
|| @return the item sent as parameter for chaining
*/
MenuItem &addAfter(MenuItem &mi)
{
mi.before = this;
after = &mi;
return mi;
}
/*
|| @description
|| | Add an item left of this item in the hierarchy
|| #
||
|| @parameter mi the item to add
|| @return the item sent as parameter for chaining
*/
MenuItem &addLeft(MenuItem &mi)
{
mi.right = this;
left = &mi;
return mi;
}
/*
|| @description
|| | Set a callback to be fired before any 'move' function is called with this item
|| | as the current MenuItem.
|| #
||
|| @paramter cb The callback to be fired
|| @return this MenuItem
*/
MenuItem &onChangeFrom(cb_change cb)
{
cb_onChangeFrom = cb;
return *this;
}
/*
|| @description
|| | Set a callback to be fired after any 'move' function is called with this item
|| | as the resulting MenuItem.
|| #
||
|| @paramter cb The callback to be fired
|| @return this MenuItem
*/
MenuItem &onChangeTo(cb_change cb)
{
cb_onChangeTo = cb;
return *this;
}
/*
|| @description
|| | Set a callback to be fired when 'moveUp' is called with this item as the current MenuItem
|| #
||
|| @paramter cb The callback to be fired
|| @return this MenuItem
*/
MenuItem &onUp(cb_move cb)
{
cb_onUp = cb;
return *this;
}
/*
|| @description
|| | Set a callback to be fired when 'moveDown' is called with this item as the current MenuItem
|| #
||
|| @paramter cb The callback to be fired
|| @return this MenuItem
*/
MenuItem &onDown(cb_move cb)
{
cb_onDown = cb;
return *this;
}
/*
|| @description
|| | Set a callback to be fired when 'moveLeft' is called with this item as the current MenuItem
|| #
||
|| @paramter cb The callback to be fired
|| @return this MenuItem
*/
MenuItem &onLeft(cb_move cb)
{
cb_onLeft = cb;
return *this;
}
/*
|| @description
|| | Set a callback to be fired when 'moveRight' is called with this item as the current MenuItem
|| #
||
|| @paramter cb The callback to be fired
|| @return this MenuItem
*/
MenuItem &onRight(cb_move cb)
{
cb_onRight = cb;
return *this;
}
/*
|| @description
|| | Set a callback to be fired when 'use' is called with this item as the current MenuItem
|| #
||
|| @paramter cb The callback to be fired
|| @return this MenuItem
*/
MenuItem &onUse(cb_use cb)
{
cb_onUse = cb;
return *this;
}
protected:
uint8_t shortkey;
MenuItem *before;
MenuItem *right;
MenuItem *after;
MenuItem *left;
cb_change cb_onChangeFrom;
cb_change cb_onChangeTo;
cb_move cb_onUp;
cb_move cb_onDown;
cb_move cb_onLeft;
cb_move cb_onRight;
cb_use cb_onUse;
MenuBackend *menuBackend;
private:
friend class MenuBackend;
MenuItem *moveUp()
{
return before;
}
MenuItem *moveDown()
{
return after;
}
MenuItem *moveLeft()
{
return left;
}
MenuItem *moveRight()
{
return right;
}
};
class MenuBackend
{
public:
MenuBackend(cb_use menuUse, cb_change menuChange = 0) : root(F("MenuRoot"))
{
current = &root;
cb_menuChange = menuChange;
cb_menuUse = menuUse;
}
/*
|| @description
|| | Get the root of this menu
|| #
||
|| @return the root item
*/
MenuItem &getRoot()
{
return root;
}
/*
|| @description
|| | Get the current item of this menu
|| #
||
|| @return the current item
*/
MenuItem &getCurrent()
{
return *current;
}
/*
|| @description
|| | Move up in the menu structure, will fire move event
|| #
*/
void moveUp()
{
if (current->cb_onUp)
{
MenuMoveEvent mme = { *current };
(*current->cb_onUp)(mme);
}
setCurrent(current->moveUp());
}
/*
|| @description
|| | Move down in the menu structure, will fire move event
|| #
*/
void moveDown()
{
if (current->cb_onDown)
{
MenuMoveEvent mme = { *current };
(*current->cb_onDown)(mme);
}
setCurrent(current->moveDown());
}
/*
|| @description
|| | Move left in the menu structure, will fire move event
|| #
*/
void moveLeft()
{
if (current->cb_onLeft)
{
MenuMoveEvent mme = { *current };
(*current->cb_onLeft)(mme);
}
setCurrent(current->moveLeft());
}
/*
|| @description
|| | Move right in the menu structure, will fire move event
|| #
*/
void moveRight()
{
if (current->cb_onRight)
{
MenuMoveEvent mme = { *current };
(*current->cb_onRight)(mme);
}
setCurrent(current->moveRight());
}
/*
|| @description
|| | Use an item
|| #
||
|| @parameter item is the item to use
*/
void use(MenuItem &item)
{
setCurrent(&item);
use();
}
/*
|| @description
|| | Use an item per its shortkey
|| #
||
|| @parameter shortkey the shortkey of the target item
*/
void use(uint8_t shortkey)
{
recursiveSearch(shortkey, &root);
use();
}
/*
|| @description
|| | Use an item, will fire use event
|| #
*/
void use()
{
//current->use();
if (current->cb_onUse)
{
MenuUseEvent mue = { *current };
(*current->cb_onUse)(mue);
}
if (cb_menuUse)
{
MenuUseEvent mue = { *current };
cb_menuUse(mue);
}
}
/*
|| @description
|| | Select an item, will fire change event
|| #
*/
void select(MenuItem &item)
{
setCurrent(&item);
}
private:
void setCurrent(MenuItem *next)
{
if (next)
{
MenuChangeEvent mce = { *current, *next };
if (current->cb_onChangeFrom)
{
(*current->cb_onChangeFrom)(mce);
}
if (next->cb_onChangeTo)
{
(*next->cb_onChangeTo)(mce);
}
if (cb_menuChange)
{
(*cb_menuChange)(mce);
}
current = next;
}
}
void foundShortkeyItem(MenuItem *mi)
{
current = mi;
}
char canSearch(uint8_t shortkey, MenuItem *m)
{
if (m == 0)
{
return 0;
}
else
{
if (m->getShortkey() == shortkey)
{
foundShortkeyItem(m);
return 1;
}
return -1;
}
}
void rSAfter(uint8_t shortkey, MenuItem *m)
{
if (canSearch(shortkey, m) != 1)
{
rSAfter(shortkey, m->getAfter());
rSRight(shortkey, m->getRight());
rSLeft(shortkey, m->getLeft());
}
}
void rSRight(uint8_t shortkey, MenuItem *m)
{
if (canSearch(shortkey, m) != 1)
{
rSAfter(shortkey, m->getAfter());
rSRight(shortkey, m->getRight());
rSBefore(shortkey, m->getBefore());
}
}
void rSLeft(uint8_t shortkey, MenuItem *m)
{
if (canSearch(shortkey, m) != 1)
{
rSAfter(shortkey, m->getAfter());
rSLeft(shortkey, m->getLeft());
rSBefore(shortkey, m->getBefore());
}
}
void rSBefore(uint8_t shortkey, MenuItem *m)
{
if (canSearch(shortkey, m) != 1)
{
rSRight(shortkey, m->getRight());
rSLeft(shortkey, m->getLeft());
rSBefore(shortkey, m->getBefore());
}
}
void recursiveSearch(uint8_t shortkey, MenuItem *m)
{
if (canSearch(shortkey, m) != 1)
{
rSAfter(shortkey, m->getAfter());
rSRight(shortkey, m->getRight());
rSLeft(shortkey, m->getLeft());
rSBefore(shortkey, m->getBefore());
}
}
MenuItem root;
MenuItem *current;
cb_change cb_menuChange;
cb_use cb_menuUse;
};
#endif
// MENUBACKEND_H

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libraries/MenuBackend/examples/CallbackMenu/CallbackMenu.pde Normal file
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/**
* HelloMenu
* by BREVIG http://alexanderbrevig.com
* modified kerinin@gmail.com
*
* This is the structure of the modelled menu
*
* Settings
* Pin
* Debug
* Options
* Delay (D)
* 100 ms
* 200 ms
* 300 ms
* 400 ms
*/
#include <MenuBackend.h>
//this controls the menu backend and the event generation
MenuBackend menu = MenuBackend(menuUseEvent,menuChangeEvent);
//beneath is list of menu items needed to build the menu
MenuItem settings = MenuItem(menu, "Settings", 1);
MenuItem pin = MenuItem(menu, "Pin", 2);
MenuItem debug = MenuItem(menu, "Debug", 2);
MenuItem options = MenuItem(menu, "Options", 1);
MenuItem setDelay = MenuItem(menu, "Delay",'D', 2);
MenuItem d100 = MenuItem(menu, "100 ms", 3);
MenuItem d200 = MenuItem(menu, "200 ms", 3);
MenuItem d300 = MenuItem(menu, "300 ms", 3);
MenuItem d400 = MenuItem(menu, "400 ms", 3);
//this function builds the menu and connects the correct items together
void menuSetup()
{
Serial.println("Setting up menu...");
//add the file menu to the menu root
menu.getRoot()
.onLeft(handleInvalidMove)
.onRight(handleInvalidMove)
.onUp(handleInvalidMove)
.add(settings);
//setup the settings menu item
settings.addAfter(options);
options.addAfter(settings);
settings.onLeft(handleInvalidMove).addRight(pin); //chain settings to pin on right
debug.addLeft(settings); //also go to settings left for debug
//we want looping both up and down
pin.addBefore(debug);
pin.addAfter(debug);
debug.addBefore(pin);
debug.addAfter(pin);
options.onLeft(handleInvalidMove).addRight(setDelay); //chain options to delay on right
setDelay.addRight(d100);
d100.addBefore(d100); //loop to d400
d100.onChangeTo(handleDelayChange).onRight(handleSetDelay).addAfter(d200);
d200.onChangeTo(handleDelayChange).onRight(handleSetDelay).addAfter(d300);
d300.onChangeTo(handleDelayChange).onRight(handleSetDelay).addAfter(d400);
d400.onChangeTo(handleDelayChange).onRight(handleSetDelay).addAfter(d100); //loop back to d100
//we want left to always be bak to delay
d100.addLeft(setDelay);
d200.addLeft(setDelay);
d300.addLeft(setDelay);
d400.addLeft(setDelay);
}
/*
This function is called when you try to go someone
you don't belong
*/
void handleInvalidMove(MenuMoveEvent menu)
{
Serial.println("You cannot go there. It is not a place");
}
/*
This function is called when we change to
a 'delay' menu item.
*/
void handleDelayChange(MenuChangeEvent changed)
{
Serial.print("Selected delay changed from ");
Serial.print(changed.from.getName());
Serial.print(" to ");
Serial.println(changed.to.getName());
}
/*
This function is called when moveRight() is called
with a delay menu item as the current menu.
You could use this to change the value or something
similar
*/
void handleSetDelay(MenuMoveEvent menu)
{
Serial.print("Change delay to ");
Serial.print(menu.item.getName());
Serial.println(" NOW!");
}
/*
This is an important function
Here all use events are handled
This is where you define a behaviour for a menu item
*/
void menuUseEvent(MenuUseEvent used)
{
Serial.print("Menu use ");
Serial.println(used.item.getName());
if (used.item.isEqual(setDelay)) //comparison agains a known item
{
Serial.println("menuUseEvent found Delay (D)");
}
}
/*
This is an important function
Here we get a notification whenever the user changes the menu
That is, when the menu is navigated
*/
void menuChangeEvent(MenuChangeEvent changed)
{
Serial.print("Menu change ");
Serial.print(changed.from.getName());
Serial.print(" ");
Serial.println(changed.to.getName());
}
void setup()
{
Serial.begin(9600);
menuSetup();
Serial.println("Starting navigation:\r\nUp: w Down: s Left: a Right: d Use: e");
//fire Delay : menu.use('D');
//bail back to Options by moving up one logical level after a D : menu.moveRelativeLevels(-1);
}
void loop()
{
if (Serial.available())
{
byte read = Serial.read();
switch (read)
{
case 'w': menu.moveUp(); break;
case 's': menu.moveDown(); break;
case 'd': menu.moveRight(); break;
case 'a': menu.moveLeft(); break;
case 'e': menu.use(); break;
}
}
}

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libraries/MenuBackend/examples/CallbackMenu/printresult.txt Normal file
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Setting up menu...
Starting navigation (see source for description):
Menu change MenuRoot File
Menu change File New
Menu change New Open
Menu change Open Examples
Menu change Examples ArduinoISP
Menu use ArduinoISP
menuUseEvent found ArduinoISP
Menu change ArduinoISP Examples
Menu change Examples Open
Menu change Open New
Menu change New File
Menu change File Edit
Menu change Edit Sketch
Menu change Sketch Verify
Menu use Verify
Menu change Verify Sketch
Menu change Sketch Edit
Menu change Edit File
Menu change File New
Menu use New
Menu use Verify
menuUseEvent found Verify (V)

123
libraries/MenuBackend/examples/HelloMenu/HelloMenu.pde Normal file
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/**
* HelloMenu
* by BREVIG http://alexanderbrevig.com
*
* This is the structure of the modelled menu
*
* Settings
* Pin
* Debug
* Options
* Delay (D)
* 100 ms
* 200 ms
* 300 ms
* 400 ms
*/
#include <MenuBackend.h>
//this controls the menu backend and the event generation
MenuBackend menu = MenuBackend(menuUseEvent,menuChangeEvent);
//beneath is list of menu items needed to build the menu
MenuItem settings = MenuItem(menu, "Settings", 1);
MenuItem pin = MenuItem(menu, "Pin", 2);
MenuItem debug = MenuItem(menu, "Debug", 2);
MenuItem options = MenuItem(menu, "Options", 1);
MenuItem setDelay = MenuItem(menu, "Delay",'D', 2);
MenuItem d100 = MenuItem(menu, "100 ms", 3);
MenuItem d200 = MenuItem(menu, "200 ms", 3);
MenuItem d300 = MenuItem(menu, "300 ms", 3);
MenuItem d400 = MenuItem(menu, "400 ms", 3);
//this function builds the menu and connects the correct items together
void menuSetup()
{
Serial.println("Setting up menu...");
//add the file menu to the menu root
menu.getRoot().add(settings);
//setup the settings menu item
settings.addAfter(options);
options.addAfter(settings);
settings.addLeft(settings); //loop back if left on settings
settings.addRight(pin); //chain settings to pin on right
debug.addLeft(settings); //also go to settings left for debug
//we want looping both up and down
pin.addBefore(debug);
pin.addAfter(debug);
debug.addBefore(pin);
debug.addAfter(pin);
options.addLeft(options); //loop back if left on settings
options.addRight(setDelay); //chain options to delay on right
setDelay.addRight(d100);
d100.addBefore(d100); //loop to d400
d100.addAfter(d200);
d200.addAfter(d300);
d300.addAfter(d400);
d400.addAfter(d100); //loop back to d100
//we want left to always be bak to delay
d100.addLeft(setDelay);
d200.addLeft(setDelay);
d300.addLeft(setDelay);
d400.addLeft(setDelay);
}
/*
This is an important function
Here all use events are handled
This is where you define a behaviour for a menu item
*/
void menuUseEvent(MenuUseEvent used)
{
Serial.print("Menu use ");
Serial.println(used.item.getName());
if (used.item.isEqual(setDelay)) //comparison agains a known item
{
Serial.println("menuUseEvent found Delay (D)");
}
}
/*
This is an important function
Here we get a notification whenever the user changes the menu
That is, when the menu is navigated
*/
void menuChangeEvent(MenuChangeEvent changed)
{
Serial.print("Menu change ");
Serial.print(changed.from.getName());
Serial.print(" ");
Serial.println(changed.to.getName());
}
void setup()
{
Serial.begin(9600);
menuSetup();
Serial.println("Starting navigation:\r\nUp: w Down: s Left: a Right: d Use: e");
//fire Delay : menu.use('D');
//bail back to Options by moving up one logical level after a D : menu.moveRelativeLevels(-1);
}
void loop()
{
if (Serial.available())
{
byte read = Serial.read();
switch (read)
{
case 'w': menu.moveUp(); break;
case 's': menu.moveDown(); break;
case 'd': menu.moveRight(); break;
case 'a': menu.moveLeft(); break;
case 'e': menu.use(); break;
}
}
}

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Setting up menu...
Starting navigation (see source for description):
Menu change MenuRoot File
Menu change File New
Menu change New Open
Menu change Open Examples
Menu change Examples ArduinoISP
Menu use ArduinoISP
menuUseEvent found ArduinoISP
Menu change ArduinoISP Examples
Menu change Examples Open
Menu change Open New
Menu change New File
Menu change File Edit
Menu change Edit Sketch
Menu change Sketch Verify
Menu use Verify
Menu change Verify Sketch
Menu change Sketch Edit
Menu change Edit File
Menu change File New
Menu use New
Menu use Verify
menuUseEvent found Verify (V)

59
libraries/MenuBackend/keywords.txt Normal file
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#######################################
# Syntax Coloring Map For MenuBackend
#######################################
#######################################
# Datatypes (KEYWORD1)
#######################################
MenuBackend KEYWORD1
MenuItem KEYWORD1
MenuChangeEvent KEYWORD1
MenuUseEvent KEYWORD1
MenuItemChangeEvent KEYWORD1
#######################################
# Methods and Functions (KEYWORD2)
#######################################
registerBackend KEYWORD2
moveRelativeLevels KEYWORD2
moveToLevel KEYWORD2
fireItemChangedEvent KEYWORD2
getValue KEYWORD2
setValue KEYWORD2
increment KEYWORD2
decrement KEYWORD2
setLevel KEYWORD2
getLevel KEYWORD2
hasShortkey KEYWORD2
getShortkey KEYWORD2
getRoot KEYWORD2
getCurrent KEYWORD2
getName KEYWORD2
getBack KEYWORD2
getBefore KEYWORD2
getRight KEYWORD2
getAfter KEYWORD2
getLeft KEYWORD2
use KEYWORD2
select KEYWORD2
moveBack KEYWORD2
moveUp KEYWORD2
moveDown KEYWORD2
moveLeft KEYWORD2
moveRight KEYWORD2
add KEYWORD2
addBefore KEYWORD2
addRight KEYWORD2
addAfter KEYWORD2
addLeft KEYWORD2
from KEYWORD2
to KEYWORD2
item KEYWORD2
isEqual KEYWORD2
#######################################
# Constants (LITERAL1)
#######################################