/*********************************************************************
*                    SEGGER Microcontroller GmbH                     *
*        Solutions for real time microcontroller applications        *
**********************************************************************
*                                                                    *
*        (c) 1996 - 2020  SEGGER Microcontroller GmbH                *
*                                                                    *
*        Internet: www.segger.com    Support:  support@segger.com    *
*                                                                    *
**********************************************************************

** emWin V6.10 - Graphical user interface for embedded applications **
emWin is protected by international copyright laws.   Knowledge of the
source code may not be used to write a similar product.  This file may
only  be used  in accordance  with  a license  and should  not be  re-
distributed in any way. We appreciate your understanding and fairness.
----------------------------------------------------------------------
File        : WM_LateClipping.c
Purpose     : Sample that shows the difference between late and early
              clipping in emWin.
Requirements: WindowManager - (x)
              MemoryDevices - ( )
              AntiAliasing  - ( )
              VNC-Server    - ( )
              PNG-Library   - ( )
              TrueTypeFonts - ( )
----------------------------------------------------------------------
*/

#include "GUI.h"
#include "WM.h"
#include "FRAMEWIN.h"
#include "BUTTON.h"

/*********************************************************************
*
*       Static data
*
**********************************************************************
*/
static WM_HWIN _hWin1;
static WM_HWIN _hWin2;
static WM_HWIN _hBut1;
static WM_HWIN _hBut2;
static int     _PaintCount1;
static int     _PaintCount2;

static GUI_COLOR _aColors[] = {
#if (GUI_USE_ARGB == 1)
  0xFFFF0000, 0xFF00FF00, 0xFF0000FF, 0xFFFFFF00, 0xFFA000A0, 0xFF00FFFF
#else
  0x0000FF, 0x00FF00, 0xFF0000, 0x00FFFF, 0xA000A0, 0xFFFF00
#endif
};

/*********************************************************************
*
*       Static code
*
**********************************************************************
*/
/*********************************************************************
*
*       _cbBkWin
*/
static void _cbBkWin(WM_MESSAGE* pMsg) {
  switch(pMsg->MsgId) {
  case WM_PAINT:
    GUI_SetBkColor(GUI_BLACK);
    GUI_Clear();
    GUI_SetColor(GUI_MAKE_COLOR(0x0060FF));
    GUI_DispStringAt("PaintCount (Early):", 0, 0);
    GUI_DispDecAt(_PaintCount1, 120, 0, 5);
    GUI_SetColor(GUI_MAKE_COLOR(0x00FFC0));
    GUI_DispStringAt("PaintCount (Late):", 0, 12);
    GUI_DispDecAt(_PaintCount2, 120, 12, 5);
    break;
  case WM_NOTIFY_PARENT:
    if (pMsg->Data.v == WM_NOTIFICATION_RELEASED) {
      if (pMsg->hWinSrc == _hBut1) {
        WM_InvalidateWindow(_hWin1);
        WM_InvalidateWindow(_hWin2);
      } else if (pMsg->hWinSrc == _hBut2) {
        _PaintCount1 = 0;
        _PaintCount2 = 0;
        WM_InvalidateWindow(pMsg->hWin);
      }
    }
    break;
  default:
    WM_DefaultProc(pMsg);
  }
}

/*********************************************************************
*
*       _cbTop
*/
static void _cbTop(WM_MESSAGE* pMsg) {
  switch(pMsg->MsgId) {
  case WM_PAINT:
    GUI_SetBkColor(GUI_MAGENTA);
    GUI_Clear();
    break;
  default:
    WM_DefaultProc(pMsg);
  }
}

/*********************************************************************
*
*       _cbFrameWin1
*/
static void _cbFrameWin1(WM_MESSAGE* pMsg) {
  switch(pMsg->MsgId) {
  case WM_PAINT:
    //
    // Draw something
    //
    GUI_SetBkColor(_aColors[_PaintCount1 % 6]);
    GUI_Clear();
    GUI_SetColor(GUI_MAKE_COLOR(0x0060FF));
    GUI_FillCircle(25, 25, 15);
    GUI_SetColor(GUI_BLACK);
    GUI_DrawCircle(25, 25, 15);
    //
    // Count paint event
    //
    _PaintCount1++;
    WM_InvalidateWindow(WM_HBKWIN);
    break;
  default:
    WM_DefaultProc(pMsg);
  }
}

/*********************************************************************
*
*       _cbFrameWin2
*/
static void _cbFrameWin2(WM_MESSAGE* pMsg) {
  switch(pMsg->MsgId) {
  case WM_PAINT:
    //
    // Draw something
    //
    GUI_SetBkColor(_aColors[_PaintCount2 % 6]);
    GUI_Clear();
    GUI_SetColor(GUI_MAKE_COLOR(0x00FFC0));
    GUI_FillCircle(25, 25, 15);
    GUI_SetColor(GUI_BLACK);
    GUI_DrawCircle(25, 25, 15);
    //
    // Count paint event
    //
    _PaintCount2++;
    WM_InvalidateWindow(WM_HBKWIN);
    break;
  default:
    WM_DefaultProc(pMsg);
  }
}

/*********************************************************************
*
*       _ShowDemo
*/
static void _ShowDemo(void) {
  WM_HWIN hWin0;
  WM_HWIN hWin1;
  WM_HWIN hWin2;
  WM_HWIN hFrame1;
  WM_HWIN hFrame2;
  WM_HWIN hClient1;
  WM_HWIN hClient2;

  WM_SetCallback(WM_HBKWIN, _cbBkWin);
  hFrame1  = FRAMEWIN_CreateEx( 10, 30, 140, 140, 0, WM_CF_SHOW, FRAMEWIN_CF_MOVEABLE, 0, "Early Clipping", _cbFrameWin1);
  hFrame2  = FRAMEWIN_CreateEx(170, 30, 140, 140, 0, WM_CF_SHOW, FRAMEWIN_CF_MOVEABLE, 0, "Late Clipping", _cbFrameWin2);
  hClient1 = WM_GetClientWindow(hFrame1);
  hClient2 = WM_GetClientWindow(hFrame2);
  //
  // To create a late clipping window, the flag WM_CF_LATE_CLIP has to be added
  //
  _hWin1   = WM_CreateWindowAsChild(0, 0, WM_GetWindowSizeX(hClient1), WM_GetWindowSizeY(hClient1), hClient1, WM_CF_SHOW, _cbFrameWin1, 0);
  _hWin2   = WM_CreateWindowAsChild(0, 0, WM_GetWindowSizeX(hClient2), WM_GetWindowSizeY(hClient2), hClient2, WM_CF_SHOW | WM_CF_LATE_CLIP, _cbFrameWin2, 0);
  _hBut1   = BUTTON_CreateEx( 10, 210, 140, 20, 0, WM_CF_SHOW, 0, 1);
  _hBut2   = BUTTON_CreateEx(170, 210, 140, 20, 0, WM_CF_SHOW, 0, 2);
  hWin0    = FRAMEWIN_CreateEx( 60,  80, 40, 40, 0, WM_CF_SHOW | WM_CF_STAYONTOP, FRAMEWIN_CF_MOVEABLE, 0, "Top 0", _cbTop);
  hWin1    = FRAMEWIN_CreateEx(220,  80, 40, 40, 0, WM_CF_SHOW | WM_CF_STAYONTOP, FRAMEWIN_CF_MOVEABLE, 0, "Top 1", _cbTop);
  hWin2    = FRAMEWIN_CreateEx(140, 170, 40, 40, 0, WM_CF_SHOW | WM_CF_STAYONTOP, FRAMEWIN_CF_MOVEABLE, 0, "Top 2", _cbTop);
  FRAMEWIN_SetResizeable(hWin0, 1);
  FRAMEWIN_SetResizeable(hWin1, 1);
  FRAMEWIN_SetResizeable(hWin2, 1);
  BUTTON_SetText(_hBut1, "Invalidate");
  BUTTON_SetText(_hBut2, "Reset counters");
  while(1) {
    GUI_Delay(50);
  }
}

/*********************************************************************
*
*       Public code
*
**********************************************************************
*/
/*********************************************************************
*
*       MainTask
*/
void MainTask(void) {
  //
  // Init GUI
  //
  GUI_Init();

  while(1) {
    _ShowDemo();
  }
}

/*************************** End of file ****************************/