widget_header.c

ucGui 的示范例子源码,里面包含好多哟, 有LIST 控件,BUTTON 控件,窗口管理,尤其是透明窗口管理.非常的形象.

/*********************************************************************
*                SEGGER MICROCONTROLLER SYSTEME GmbH                 *
*        Solutions for real time microcontroller applications        *
**********************************************************************
*                                                                    *
*        (c) 2002         SEGGER Microcontroller Systeme GmbH        *
*                                                                    *
*        Internet: www.segger.com    Support:  [e-mail]    *
*                                                                    *
**********************************************************************

**** emWin/GSC Grafical 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        : WIDGET_Header.c
Purpose     : Demonstrates the use of header widgets
---------------------------END-OF-HEADER------------------------------
*/

#include <stddef.h>
#include <string.h>
#include "GUI.h"
#include "HEADER.h"
#include "FRAMEWIN.h"

/*********************************************************************
*
*       Defines
*
**********************************************************************
*/

#define MSG_CHANGE_MAIN_TEXT (WM_USER + 0)
#define MSG_CHANGE_INFO_TEXT (WM_USER + 1)

/*********************************************************************
*
*       Static data
*
**********************************************************************
*/

static HEADER_Handle _hHeader;
static char _acMainText[100];
static char _acInfoText[100];

/*********************************************************************
*
*       Static code
*
**********************************************************************
*/

/*******************************************************************
*
*       _ChangeMainText
*
*  Sends a message to the background window and invalidate it, so
*  the callback of the background window display the new text.
*/
static void _ChangeMainText(char* pStr) {
  WM_MESSAGE Message;
  Message.MsgId  = MSG_CHANGE_MAIN_TEXT;
  Message.Data.p = pStr;
  WM_SendMessage(WM_HBKWIN, &Message);
  WM_InvalidateWindow(WM_HBKWIN);
}

/*******************************************************************
*
*       _ChangeInfoText
*
*  Sends a message to the background window and invalidate it, so
*  the callback of the background window display the new text.
*/
static void _ChangeInfoText(char* pStr) {
  WM_MESSAGE Message;
  Message.MsgId  = MSG_CHANGE_INFO_TEXT;
  Message.Data.p = pStr;
  WM_SendMessage(WM_HBKWIN, &Message);
  WM_InvalidateWindow(WM_HBKWIN);
}

/*******************************************************************
*
*       _cbBkWindow
*/
static void _cbBkWindow(WM_MESSAGE* pMsg) {
  switch (pMsg->MsgId) {
    case MSG_CHANGE_MAIN_TEXT:
      strcpy(_acMainText, pMsg->Data.p);
      WM_InvalidateWindow(pMsg->hWin);
      break;
    case MSG_CHANGE_INFO_TEXT:
      strcpy(_acInfoText, pMsg->Data.p);
      WM_InvalidateWindow(pMsg->hWin);
      break;
    case WM_PAINT:
      GUI_SetBkColor(GUI_BLACK);
      GUI_Clear();
      GUI_SetColor(GUI_WHITE);
      GUI_SetFont(&GUI_Font24_ASCII);
      GUI_DispStringHCenterAt("HEADER Widget - Sample", 160, 5);
      GUI_SetFont(&GUI_Font8x16);
      GUI_DispStringAt(_acMainText, 5, 40);
      GUI_SetFont(&GUI_Font8x8);
      GUI_DispStringAt(_acInfoText, 5, 60);
      break;
    default:
      WM_DefaultProc(pMsg);
  }
}

/*********************************************************************
*
*       _OnPaint
*/
static void _OnPaint(void) {
  int xPos = 0;
  GUI_RECT Rect;
  GUI_SetBkColor(GUI_GRAY);
  GUI_Clear();
  WM_GetClientRect(&Rect);
  Rect.x1 = HEADER_GetItemWidth(_hHeader, 0);
  GUI_SetColor(GUI_RED);
  GUI_FillRect(Rect.x0, Rect.y0, Rect.x1, Rect.y1);
  Rect.x0 = Rect.x1;
  Rect.x1 += HEADER_GetItemWidth(_hHeader, 1);
  GUI_SetColor(GUI_GREEN);
  GUI_FillRect(Rect.x0, Rect.y0, Rect.x1, Rect.y1);
  Rect.x0 = Rect.x1;
  Rect.x1 += HEADER_GetItemWidth(_hHeader, 2);
  GUI_SetColor(GUI_BLUE);
  GUI_FillRect(Rect.x0, Rect.y0, Rect.x1, Rect.y1);
}

/*********************************************************************
*
*       cbWindow
*/
static void _cbWindow(WM_MESSAGE * pMsg) {
  WM_HWIN hWin = pMsg->hWin;
  switch (pMsg->MsgId) {
    case WM_PAINT:
      _OnPaint();
      break;
  }
  WM_DefaultProc(pMsg);
}

/*********************************************************************
*
*       _Demo
*/
static void _Demo(void) {
  int Key = 0;
  int Cnt = 10;
  char acInfoText[] = "-- sec to play with header control";
  _ChangeInfoText("HEADER_AddItem");
  HEADER_AddItem(_hHeader, 100, "Red"  , GUI_TA_VCENTER | GUI_TA_HCENTER);
  HEADER_AddItem(_hHeader,   0, "Green", GUI_TA_VCENTER | GUI_TA_HCENTER);
  HEADER_AddItem(_hHeader,   0, ":-)"  , GUI_TA_VCENTER | GUI_TA_HCENTER);
  GUI_Delay(750);
  _ChangeInfoText("HEADER_SetItemWidth");
  HEADER_SetItemWidth(_hHeader, 1, 60);
  GUI_Delay(750);
  _ChangeInfoText("HEADER_SetItemText");
  HEADER_SetItemWidth(_hHeader, 2, 100);
  HEADER_SetItemText(_hHeader, 2, "Blue");
  GUI_Delay(750);
  _ChangeInfoText("HEADER_SetFont");
  HEADER_SetFont(_hHeader, &GUI_Font8x8);
  GUI_Delay(750);
  _ChangeInfoText("HEADER_SetHeight");
  HEADER_SetHeight(_hHeader, 50);
  GUI_Delay(750);
  _ChangeInfoText("HEADER_SetTextColor");
  HEADER_SetTextColor(_hHeader, GUI_YELLOW);
  GUI_Delay(750);
  _ChangeInfoText("HEADER_SetBkColor");
  HEADER_SetBkColor(_hHeader, GUI_DARKGRAY);
  GUI_Delay(750);
  _ChangeInfoText("HEADER_SetTextAlign");
  HEADER_SetTextAlign(_hHeader, 0, GUI_TA_HCENTER);
  while (!Key && (Cnt > 0)) {
    acInfoText[0] = '0' + (Cnt / 10);
    acInfoText[1] = '0' + (Cnt-- % 10);
    _ChangeInfoText(acInfoText);
    GUI_Delay(1000);
    Key = GUI_GetKey();
  }
}

/*********************************************************************
*
*       _DemoHeaderFrameWin
*/
static void _DemoHeaderFrameWin(void) {
  FRAMEWIN_Handle hFrameWin;
  _ChangeMainText("HEADER control inside a FRAMEWIN");
  hFrameWin = FRAMEWIN_Create("Title", _cbWindow, WM_CF_SHOW, 10, 80, 300, 140);
  FRAMEWIN_SetActive(hFrameWin, 1);
  _hHeader = HEADER_CreateAttached(WM_GetClientWindow(hFrameWin), 1234, 0);
  _Demo();
  FRAMEWIN_Delete(hFrameWin);
}

/*********************************************************************
*
*       _DemoHeaderWin
*/
static void _DemoHeaderWin(void) {
  WM_HWIN hWin;
  _ChangeMainText("HEADER control inside a window");
  hWin = WM_CreateWindow(10, 80, 300, 140, WM_CF_SHOW, _cbWindow, 0);
  _hHeader = HEADER_CreateAttached(hWin, 1234, 0);
  _Demo();
  WM_DeleteWindow(hWin);
}

/*********************************************************************
*
*       _DemoHeader
*/
static void _DemoHeader(void) {
  _ChangeMainText("HEADER control without parent");
  _hHeader = HEADER_Create(10, 80, 300, 0, 0, 1234, WM_CF_SHOW, 0);
  _Demo();
  HEADER_Delete(_hHeader);
}

/*********************************************************************
*
*       MainTask
*
**********************************************************************
*/
void MainTask(void) {
  GUI_Init();
  WM_EnableMemdev(WM_HBKWIN);
  WM_SetCreateFlags(WM_CF_MEMDEV);
  WM_SetCallback(WM_HBKWIN, _cbBkWindow);
  GUI_CURSOR_Show();
  while(1) {
    _DemoHeaderFrameWin();
    _DemoHeaderWin();
    _DemoHeader();
  }
}