ucGUI例程收藏
ucGUI 几个重要例程Demo
按钮的定制
#include <stddef.h> #include <string.h> #include "WM.h" #include "FRAMEWIN.h" #include "BUTTON.h" #include "BUTTON_Private.h" #include "GUI_Protected.h" /********************************************************************* * * Static data * ********************************************************************** */ static WM_CALLBACK * _pcbCallback; static int _Color; static int _Font; static int _Pressed; static const GUI_WIDGET_CREATE_INFO _aDialogCreate[] = { { FRAMEWIN_CreateIndirect, "Round button sample", 0, 50, 60, 200, 120, FRAMEWIN_CF_MOVEABLE }, { BUTTON_CreateIndirect, "Button", GUI_ID_BUTTON0, 100, 10, 80, 80 }, { BUTTON_CreateIndirect, "Callback", GUI_ID_BUTTON1, 10, 10, 60, 20 }, { BUTTON_CreateIndirect, "Font", GUI_ID_BUTTON2, 10, 30, 60, 20 }, { BUTTON_CreateIndirect, "Color", GUI_ID_BUTTON3, 10, 50, 60, 20 }, { BUTTON_CreateIndirect, "Cancel", GUI_ID_CANCEL, 10, 70, 60, 20 } }; /********************************************************************* * * Static functions * ********************************************************************** */ /********************************************************************* * * _OnPaint * * Purpose: Paints the owner drawn button */ static void _OnPaint(BUTTON_Handle hObj) { int Index; char ac[50]; GUI_RECT Rect; BUTTON_Obj * pObj; pObj = BUTTON_H2P(hObj); Index = (WIDGET_GetState(hObj) & BUTTON_STATE_PRESSED) ? 1 : 0; WM_GetClientRect(&Rect); /* Draw filled ellipse with button background color */ GUI_SetColor(BUTTON_GetBkColor(hObj, Index)); GUI_FillEllipse(Rect.x1 / 2, Rect.y1 / 2, Rect.x1 / 2, Rect.y1 / 2); /* Draw black shape */ GUI_SetColor(GUI_BLACK); GUI_DrawEllipse(Rect.x1 / 2, Rect.y1 / 2, Rect.x1 / 2, Rect.y1 / 2); /* Draw button text with widget attributes */ GUI_SetColor(BUTTON_GetTextColor(hObj, Index)); GUI_SetBkColor(BUTTON_GetBkColor(hObj, Index)); GUI_SetFont(BUTTON_GetFont(hObj)); BUTTON_GetText(hObj, ac, sizeof(ac)); if (_Pressed) { strcpy(ac + strlen(ac), "\npressed"); } GUI_DispStringInRect(ac, &Rect, GUI_TA_HCENTER | GUI_TA_VCENTER); } /********************************************************************* * * _cbButton * * Purpose: * 1. Calls the owner draw function if the WM_PAINT message has been send * 2. Calls the original callback for further messages * 3. After processing the messages the function evaluates the pressed-state * if the WM_TOUCH message has been send */ static void _cbButton(WM_MESSAGE *pMsg) { switch (pMsg->MsgId) { case WM_PAINT: _OnPaint(pMsg->hWin); break; default: _pcbCallback(pMsg); /* The original callback */ break; } if (pMsg->MsgId == WM_TOUCH) { if (BUTTON_IsPressed(pMsg->hWin)) { if (!_Pressed) { _Pressed = 1; } } else { _Pressed = 0; } } } /********************************************************************* * * _cbDialog * * Purpose: Dialog callback routine */ static void _cbDialog(WM_MESSAGE *pMsg) { int NCode, Id; WM_HWIN hDlg; BUTTON_Handle hButton; hDlg = pMsg->hWin; switch (pMsg->MsgId) { case WM_PAINT: WM_DefaultProc(pMsg); /* Handle dialog items */ /* After drawing the dialog items add some user drawn items to the window */ GUI_SetPenSize(10); GUI_SetColor(GUI_GREEN); GUI_DrawLine( 95, 5, 185, 95); GUI_SetColor(GUI_RED); GUI_DrawLine( 95, 95, 185, 5); break; case WM_INIT_DIALOG: hButton = WM_GetDialogItem(hDlg, GUI_ID_BUTTON0); WM_SetHasTrans(hButton); /* Set transparency flag for button */ break; case WM_KEY: switch (((WM_KEY_INFO*)(pMsg->Data.p))->Key) { case GUI_KEY_ESCAPE: GUI_EndDialog(hDlg, 1); break; case GUI_KEY_ENTER: GUI_EndDialog(hDlg, 0); break; } break; case WM_NOTIFY_PARENT: Id = WM_GetId(pMsg->hWinSrc); /* Id of widget */ NCode = pMsg->Data.v; /* Notification code */ switch (NCode) { case WM_NOTIFICATION_RELEASED: /* React only if released */ hButton = WM_GetDialogItem(hDlg, GUI_ID_BUTTON0); if (Id == GUI_ID_BUTTON1) { /* Toggle callback */ if (_pcbCallback) { WM_SetCallback(hButton, _pcbCallback); _pcbCallback = 0; } else { _pcbCallback = WM_SetCallback(hButton, _cbButton); } WM_InvalidateWindow(hButton); } if (Id == GUI_ID_BUTTON2) { /* Toggle font */ if (_Font) { BUTTON_SetFont(hButton, &GUI_Font13_1); } else { BUTTON_SetFont(hButton, &GUI_Font8x16); } _Font ^= 1; } if (Id == GUI_ID_BUTTON3) { /* Toggle color */ if (_Color) { BUTTON_SetBkColor(hButton, 0, 0xaaaaaa); BUTTON_SetBkColor(hButton, 1, GUI_WHITE); BUTTON_SetTextColor(hButton, 0, GUI_BLACK); BUTTON_SetTextColor(hButton, 1, GUI_BLACK); } else { BUTTON_SetBkColor(hButton, 0, GUI_BLUE); BUTTON_SetBkColor(hButton, 1, GUI_RED); BUTTON_SetTextColor(hButton, 0, GUI_WHITE); BUTTON_SetTextColor(hButton, 1, GUI_YELLOW); } _Color ^= 1; } if (Id == GUI_ID_OK) { /* OK Button */ GUI_EndDialog(hDlg, 0); } if (Id == GUI_ID_CANCEL) { /* Cancel Button */ GUI_EndDialog(hDlg, 1); } break; } break; default: WM_DefaultProc(pMsg); } } /********************************************************************* * * MainTask * ********************************************************************** */ void MainTask(void) { GUI_Init(); /* Use memory devices for all windows */ WM_SetCreateFlags(WM_CF_MEMDEV); WM_EnableMemdev(WM_HBKWIN); WM_SetDesktopColor(GUI_GREEN); while(1) { _Font = 0; _Color = 0; _pcbCallback = 0; GUI_ExecDialogBox(_aDialogCreate, GUI_COUNTOF(_aDialogCreate), &_cbDialog, 0, 0, 0); GUI_Delay(1000); } }
对话框
代码：
static void _cbBkWindow(WM_MESSAGE* pMsg) {
switch (pMsg->MsgId) {
case WM_PAINT:
GUI_SetBkColor(GUI_RED);
GUI_Clear();
GUI_SetColor(GUI_WHITE);
GUI_SetFont(&GUI_Font24_ASCII);
GUI_DispStringHCenterAt("DIALOG_MessageBox - Sample", 160, 5);
break;
default:
WM_DefaultProc(pMsg);
}
}
/*******************************************************************
*
* MainTask
* Demonstrates a message box
*
********************************************************************
*/
void MainTask(void) {
GUI_Init();
WM_SetCallback(WM_HBKWIN, &_cbBkWindow);
/* Create message box and wait until it is closed */
while (1) {
GUI_MessageBox("This text is shown\nin a message box",
"Caption/Title", GUI_MESSAGEBOX_CF_MOVEABLE);
GUI_Delay(750); /* Wait for a short moment ... */
GUI_MessageBox("New message !",
"Caption/Title", GUI_MESSAGEBOX_CF_MOVEABLE);
GUI_Delay(750);
}
}
回调函数（窗口创建）
代码：
#include "GUI.h"
#include "WM.h"
/*******************************************************************
*
* static code
*
********************************************************************
*/
/*******************************************************************
*
* _cbBkWindow
*/
static void _cbBkWindow(WM_MESSAGE* pMsg) {
switch (pMsg->MsgId) {
case WM_PAINT:
GUI_ClearRect(0, 50, 319, 239);
default:
WM_DefaultProc(pMsg);
}
}
/*******************************************************************
*
* _cbWindow
*/
static void _cbWindow(WM_MESSAGE* pMsg) {
GUI_RECT Rect;
switch (pMsg->MsgId) {
case WM_PAINT:
WM_GetInsideRect(&Rect);
GUI_SetBkColor(GUI_RED);
GUI_SetColor(GUI_YELLOW);
GUI_ClearRectEx(&Rect);
GUI_DrawRectEx(&Rect);
GUI_SetColor(GUI_BLACK);
GUI_SetFont(&GUI_Font8x16);
GUI_DispStringHCenterAt("Foreground window", 75, 40);
break;
default:
WM_DefaultProc(pMsg);
}
}
/*******************************************************************
*
* _MoveWindow
*/
static void _MoveWindow(const char* pText) {
WM_HWIN hWnd;
int i;
/* Create foreground window */
hWnd = WM_CreateWindow(10, 50, 150, 100, WM_CF_SHOW, _cbWindow, 0);
GUI_Delay(500);
/* Move foreground window */
for (i = 0; i < 40; i++) {
WM_MoveWindow(hWnd, 2, 2);
GUI_Delay(10);
}
/* Show text before deleting window if we have one */
if (pText) {
GUI_DispStringAt(pText, 5, 50);
GUI_Delay(2500);
}
/* Delete foreground window */
WM_DeleteWindow(hWnd);
WM_Invalidate(WM_HBKWIN);
GUI_Exec();
}
/*******************************************************************
*
* _DemoRedraw
*/
static void _DemoRedraw(void) {
WM_CALLBACK* _cbOldBk;
GUI_SetBkColor(GUI_BLACK);
GUI_Clear();
GUI_SetColor(GUI_WHITE);
GUI_SetFont(&GUI_Font24_ASCII);
GUI_DispStringHCenterAt("WM_Redraw - Sample", 160, 5);
GUI_SetFont(&GUI_Font8x16);
while(1) {
/* Move a window over background */
_MoveWindow("Background has not been redrawn");
/* Clear background */
GUI_ClearRect(0, 50, 319, 239);
GUI_Delay(1000);
/* Set callback for background window */
_cbOldBk = WM_SetCallback(WM_HBKWIN, _cbBkWindow);
/* Move a window over background */
_MoveWindow("Background has been redrawn");
/* Delete callback for Background window */
WM_SetCallback(WM_HBKWIN, _cbOldBk);
}
}
/*******************************************************************
*
* MainTask
*
* Demonstrates redrawing
*
********************************************************************
*/
void MainTask(void) {
GUI_Init();
_DemoRedraw();
}
