#ifndef _GUISLICE_EX_XSELNUM_H_
#define _GUISLICE_EX_XSELNUM_H_

#include "GUIslice.h"


// =======================================================================
// GUIslice library extension: Select Number (SelNum) control
// - Calvin Hass
// - https://www.impulseadventure.com/elec/guislice-gui.html
// - https://github.com/ImpulseAdventure/GUIslice
// =======================================================================
//
// The MIT License
//
// Copyright 2016-2019 Calvin Hass
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
// =======================================================================
/// \file XSelNum.h

#ifdef __cplusplus
extern "C" {
#endif // __cplusplus



#if (GSLC_FEATURE_COMPOUND)
// ============================================================================
// Extended Element: SelNum (Number Selector)
// - Demonstration of a compound element consisting of
//   a counter text field along with an increment and
//   decrement button.
// ============================================================================

// Define unique identifier for extended element type
// - Select any number above GSLC_TYPE_BASE_EXTEND
#define  GSLC_TYPEX_SELNUM GSLC_TYPE_BASE_EXTEND + 3

#define SELNUM_STR_LEN  6

// Extended element data structures
// - These data structures are maintained in the gslc_tsElem
//   structure via the pXData pointer
/// Extended data for SelNum element
typedef struct {

  // Core functionality for SelNum
  int16_t             nCounter;       ///< Counter for demo purposes

  // Internal sub-element members
  gslc_tsCollect      sCollect;       ///< Collection management for sub-elements
  gslc_tsElemRef      asElemRef[4];   ///< Storage for sub-element references
  gslc_tsElem         asElem[4];      ///< Storage for sub-elements

  #if (GSLC_LOCAL_STR == 0)
  // If elements don't provide their own internal string buffer, then
  // we need to provide storage here in the extended data of the compound
  // element. For now, simply provide a fixed-length memory buffer.
  char                acElemTxt[4][SELNUM_STR_LEN]; ///< Storage for strings
  #endif
} gslc_tsXSelNum;




///
/// Create a SelNum Element
///
/// \param[in]  pGui:        Pointer to GUI
/// \param[in]  nElemId:     Element ID to assign (0..16383 or GSLC_ID_AUTO to autogen)
/// \param[in]  nPage:       Page ID to attach element to
/// \param[in]  pXData:      Ptr to extended element data structure
/// \param[in]  rElem:       Rectangle coordinates defining element size
/// \param[in]  nFontId:     Font ID to use for drawing the element
///
/// \return Pointer to Element or NULL if failure
///
gslc_tsElemRef* gslc_ElemXSelNumCreate(gslc_tsGui* pGui,int16_t nElemId,int16_t nPage,
  gslc_tsXSelNum* pXData,gslc_tsRect rElem,int8_t nFontId);


///
/// Draw a SelNum element on the screen
/// - Called during redraw
///
/// \param[in]  pvGui:       Void ptr to GUI (typecast to gslc_tsGui*)
/// \param[in]  pvElem:      Void ptr to Element (typecast to gslc_tsElem*)
/// \param[in]  eRedraw:     Redraw mode
///
/// \return true if success, false otherwise
///
bool gslc_ElemXSelNumDraw(void* pvGui,void* pvElemRef,gslc_teRedrawType eRedraw);


///
/// Get the current counter associated with SelNum
///
/// \param[in]  pGui:        Ptr to GUI
/// \param[in]  pSelNum:     Ptr to Element
///
/// \return Current counter value
///
int gslc_ElemXSelNumGetCounter(gslc_tsGui* pGui,gslc_tsXSelNum* pSelNum);


///
/// Set the current counter associated with SelNum
///
/// \param[in]  pGui:        Pointer to GUI
/// \param[in]  pSelNum:     Ptr to Element
/// \param[in]  nCount:      New counter value
///
/// \return none
///
void gslc_ElemXSelNumSetCounter(gslc_tsGui* pGui,gslc_tsXSelNum* pSelNum,int16_t nCount);


///
/// Handle a click event within the SelNum
/// - This is called internally by the SelNum touch handler
///
/// \param[in]  pvGui:       Void ptr to GUI (typecast to gslc_tsGui*)
/// \param[in]  pvElem:      Void ptr to Element (typecast to gslc_tsElem*)
/// \param[in]  eTouch:      Touch event type
/// \param[in]  nX:          Touch X coord
/// \param[in]  nY:          Touch Y coord
///
/// \return none
///
bool gslc_ElemXSelNumClick(void* pvGui,void *pvElemRef,gslc_teTouch eTouch,int16_t nX,int16_t nY);

///
/// Handle touch (up,down,move) events to SelNum element
/// - Called from gslc_ElemSendEventTouch()
///
/// \param[in]  pvGui:       Void ptr to GUI (typecast to gslc_tsGui*)
/// \param[in]  pvElem:      Void ptr to Element (typecast to gslc_tsElem*)
/// \param[in]  eTouch:      Touch event type
/// \param[in]  nRelX:       Touch X coord relative to element
/// \param[in]  nRelY:       Touch Y coord relative to element
///
/// \return true if success, false otherwise
///
bool gslc_ElemXSelNumTouch(void* pvGui,void* pvElemRef,gslc_teTouch eTouch,int16_t nRelX,int16_t nRelY);
#endif // GLSC_COMPOUND

// ============================================================================

// ------------------------------------------------------------------------
// Read-only element macros
// ------------------------------------------------------------------------

// Macro initializers for Read-Only Elements in Flash/PROGMEM
//
#ifdef __cplusplus
}
#endif // __cplusplus
#endif // _GUISLICE_EX_XSELNUM_H_

