legato_widget_keypad.h

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/*******************************************************************************
 Module for Microchip Graphics Library - Legato User Interface Library
 
  Company:
    Microchip Technology Inc.
 
  File Name:
    legato_widget_keypad.h
 
  Summary:
 
 
  Description:
    This module implements keypad widget functions.
*******************************************************************************/
 
#ifndef LEGATO_KEYPAD_H
#define LEGATO_KEYPAD_H
 
#include "gfx/legato/common/legato_common.h"
 
#if LE_KEYPAD_WIDGET_ENABLED == 1 && LE_BUTTON_WIDGET_ENABLED == 1
 
#include "gfx/legato/widget/legato_editwidget.h"
#include "gfx/legato/string/legato_string.h"
 
typedef struct leKeyPadWidget leKeyPadWidget;
typedef struct leButtonWidget leButtonWidget;
 
// *****************************************************************************
/* Function Pointer:
    leKeyPadWidget_KeyClickEvent
 
  Summary:
    Key click event function callback type
*/
typedef void (*leKeyPadWidget_KeyClickEvent)(leKeyPadWidget*,
                                             leButtonWidget*,
                                             uint32_t,
                                             uint32_t);
 
// *****************************************************************************
// *****************************************************************************
// Section: Data Types and Constants
// *****************************************************************************
// *****************************************************************************
 
// *****************************************************************************
/* Structure:
    leKeyPadCellAction
 
  Summary:
    Defines an assigned action to a key pad cell
 
  Description:
 
 
  Remarks:
    None.
*/
typedef enum leKeyPadCellAction
{
    LE_KEYPAD_CELL_ACTION_NONE,
    LE_KEYPAD_CELL_ACTION_APPEND,
    LE_KEYPAD_CELL_ACTION_SET,
    LE_KEYPAD_CELL_ACTION_BACKSPACE,
    LE_KEYPAD_CELL_ACTION_CLEAR,
    LE_KEYPAD_CELL_ACTION_ACCEPT
} leKeyPadCellAction;
 
// *****************************************************************************
/* Structure:
    leKeyPadActionTrigger
 
  Summary:
    Defines the trigger for keypad action and events
 
  Description:
 
 
  Remarks:
    None.
*/
typedef enum leKeyPadActionTrigger
{
    LE_KEYPAD_TRIGGER_KEYRELEASED,
    LE_KEYPAD_TRIGGER_KEYPRESSED,
} leKeyPadActionTrigger;
 
// *****************************************************************************
/* Structure:
    leKeyPadCell
 
  Summary:
    Defines a key pad cell struct
 
  Description:
    A key pad is made up of an array of key pad cells.  Each cell is individually
    an leButtonWidget, an action, a value, and a few other options.
 
  Remarks:
    None.
*/
typedef struct leKeyPadCell
{
    leBool enabled; // indicates if the cell should be drawn
    leButtonWidget* button; // the button that handles the cell input events
                            // and rendering
    leKeyPadCellAction action; // the action that occurs when the cell is
                               // activated
    const leString* value; // the value that is passed to the edit event system
} leKeyPadCell;
 
/* internal use only */
#define LE_KEYPADWIDGET_VTABLE(THIS_TYPE) \
    LE_WIDGET_VTABLE(THIS_TYPE) \
    \
    leKeyPadActionTrigger (*getKeyPadActionTrigger)(const THIS_TYPE* _this); \
    leResult              (*setKeyPadActionTrigger)(THIS_TYPE* _this, leKeyPadActionTrigger trg); \
    leKeyPadWidget_KeyClickEvent (*getKeyClickEventCallback)(const THIS_TYPE* _this); \
    leResult              (*setKeyClickEventCallback)(THIS_TYPE* _this, leKeyPadWidget_KeyClickEvent cb); \
    leResult              (*setKeyVisible)(THIS_TYPE* _this, uint32_t row, uint32_t col, leBool b); \
    leKeyPadCellAction    (*getKeyAction)(const THIS_TYPE* _this, uint32_t row, uint32_t col); \
    leResult              (*setKeyAction)(THIS_TYPE* _this, uint32_t row, uint32_t col, leKeyPadCellAction action); \
    leString*             (*getKeyValue)(const THIS_TYPE* _this, uint32_t row, uint32_t col); \
    leResult              (*setKeyValue)(THIS_TYPE* _this, uint32_t row, uint32_t col, const leString* val); \
    leButtonWidget*       (*getCellButton)(const THIS_TYPE* _this, uint32_t row, uint32_t col); \
    
typedef struct leKeyPadWidgetVTable
{
    LE_KEYPADWIDGET_VTABLE(leKeyPadWidget)
} leKeyPadWidgetVTable; 
 
// *****************************************************************************
typedef struct leKeyPadWidget
{
    leWidget widget; // widget base class
 
    const leKeyPadWidgetVTable* fn;
 
    uint32_t rows; // number of button rows
    uint32_t cols; // number of button columns
 
    leKeyPadActionTrigger trigger; //trigger for action and events
 
    leKeyPadCell* cells; // key cell array
 
    leKeyPadWidget_KeyClickEvent clickEvt; // key click callback event
} leKeyPadWidget;
 
// *****************************************************************************
// *****************************************************************************
// Section: Routines
// *****************************************************************************
// *****************************************************************************
 
LIB_EXPORT leKeyPadWidget* leKeyPadWidget_New(uint32_t rows,
                                              uint32_t cols);
 
LIB_EXPORT void leKeyPadWidget_Constructor(leKeyPadWidget* wgt,
                                           uint32_t rows,
                                           uint32_t cols);
 
#ifdef _DOXYGEN_
#define THIS_TYPE struct leWidget
 
// *****************************************************************************
/* Virtual Member Function:
    leKeyPadActionTrigger getKeyPadActionTrigger(const leKeyPadWidget* _this)
 
  Summary:
     Gets the keypad trigger action
 
  Description:
     Gets the keypad trigger action
 
  Parameters:
    const leKeyPadWidget* _this - The keypad widget to operate on
 
  Remarks:
    Usage - _this->fn->getKeyPadActionTrigger(_this);
 
  Returns:
    leKeyPadActionTrigger - the trigger action
*/
 
// *****************************************************************************
/* Virtual Member Function:
    leResult setKeyPadActionTrigger(leKeyPadWidget* _this,
                                    leKeyPadActionTrigger trg)
 
  Summary:
     Sets the keypad trigger action
 
  Description:
     Sets the keypad trigger action
 
  Parameters:
    leKeyPadWidget* _this - The keypad widget to operate on
    leKeyPadActionTrigger trg - the trigger action
 
  Remarks:
    Usage - _this->fn->setKeyPadActionTrigger(_this, trg);
 
  Returns:
    leResult - the result of the operation
*/
 
virtual leKeyPadWidget_KeyClickEvent getKeyClickEventCallback(const leKeyPadWidget* _this);
 
virtual leResult setKeyClickEventCallback(leKeyPadWidget* _this,
                                          leKeyPadWidget_KeyClickEvent cb);
 
// *****************************************************************************
/* Virtual Member Function:
    leResult setKeyClickEventCallback(leKeyPadWidget* _this,
                                      leKeyPadWidget_KeyClickEvent cb)
 
  Summary:
     Sets the key click event callback
 
  Description:
     Sets the key click event callback
 
  Parameters:
    leKeyPadWidget* _this - The keypad widget to operate on
    leKeyPadWidget_KeyClickEvent cb - the callback pointer
 
  Remarks:
    Usage - _this->fn->setKeyClickEventCallback(_this, cb);
 
  Returns:
    leResult - the result of the operation
*/
 
// *****************************************************************************
/* Virtual Member Function:
    leResult setKeyVisible(leKeyPadWidget* _this,
                           uint32_t row,
                           uint32_t col,
                           leBool b)
 
  Summary:
     Sets the enabled state of a key
 
  Description:
     Sets the enabled state of a key
 
  Parameters:
    leKeyPadWidget* _this - The keypad widget to operate on
    uint32_t row - the row index
    uint32_t col - the column index
    leBool b -
 
  Remarks:
    Usage - _this->fn->setKeyVisible(_this, row, col, b);
 
  Returns:
    leResult - the result of the operation
*/
 
// *****************************************************************************
/* Virtual Member Function:
    leKeyPadCellAction getKeyAction(const leKeyPadWidget* _this,
                                    uint32_t row,
                                    uint32_t col)
 
  Summary:
     Gets the key action setting
 
  Description:
     Gets the key action setting
 
  Parameters:
    const leKeyPadWidget* _this - The keypad widget to operate on
    uint32_t row - the row index
    uint32_t col - the column index
 
  Remarks:
    Usage - _this->fn->getKeyAction(_this, row, col);
 
  Returns:
    leKeyPadCellAction - the cell action value
*/
 
// *****************************************************************************
/* Virtual Member Function:
    leResult setKeyAction(leKeyPadWidget* _this,
                          uint32_t row,
                          uint32_t col,
                          leKeyPadCellAction action)
 
  Summary:
     Sets the key action setting
 
  Description:
     Sets the key action setting
 
  Parameters:
    leKeyPadWidget* _this - The keypad widget to operate on
    uint32_t row - the row index
    uint32_t col - the column index
    leKeyPadCellAction action - the cell action value
 
  Remarks:
    Usage - _this->fn->setKeyAction(_this, row, col, action);
 
  Returns:
    leResult - the result of the operation
*/
 
// *****************************************************************************
/* Virtual Member Function:
    leString* getKeyValue(const leKeyPadWidget* _this,
                          uint32_t row,
                          uint32_t col)
 
  Summary:
     Gets the key value
 
  Description:
     Gets the key value
 
  Parameters:
    const leKeyPadWidget* _this - The keypad widget to operate on
    uint32_t row - the row index
    uint32_t col - the column index
 
  Remarks:
    Usage - _this->fn->getKeyValue(_this, row, col);
 
  Returns:
    leString* - the string pointer
*/
 
// *****************************************************************************
/* Virtual Member Function:
    leResult setKeyValue(leKeyPadWidget* _this,
                         uint32_t row,
                         uint32_t col,
                         const leString* val)
 
  Summary:
     Sets the key value
 
  Description:
     Sets the key value
 
  Parameters:
    leKeyPadWidget* _this - The keypad widget to operate on
    uint32_t row - the row index
    uint32_t col - the column index
    const leString* val - the string pointer
 
  Remarks:
    Usage - _this->fn->setKeyValue(_this, row, col, val);
 
  Returns:
    leResult - the result of the operation
*/
 
// *****************************************************************************
/* Virtual Member Function:
    leButtonWidget* getCellButton(const leKeyPadWidget* _this,
                                  uint32_t row,
                                  uint32_t col)
 
  Summary:
     Get a button widget pointer from the keypad
 
  Description:
     Get a button widget pointer from the keypad
 
  Parameters:
    const leKeyPadWidget* _this - The keypad widget to operate on
    uint32_t row - the row index
    uint32_t col - the column index
 
  Remarks:
    Usage - _this->fn->getCellButton(_this, row, col);
 
  Returns:
    leButtonWidget* - pointer to the button widget
*/
 
#undef THIS_TYPE
#endif
 
 
#endif // LE_WIDGET_KEYPAD_ENABLED && LE_WIDGET_BUTTON_ENABLED
#endif /* LEGATO_KEYPAD_H */