guimsg.c

基于NuCleus操作系统下的一个GUI界面

					yloc=200-Ylen_FFT[i];
					color=(i/4)%4;
				
					switch(color)
					{
					case 0:
						FillRect(pScr, xloc, yloc, 8, ylen, &RGB_Red);
						break;
					case 1:
						FillRect(pScr, xloc, yloc, 8, ylen, &RGB_Yellow);
						break;
					case 2:
						FillRect(pScr, xloc, yloc, 8, ylen, &RGB_Green);
						break;
					case 3:
						FillRect(pScr, xloc, yloc, 8, ylen, &RGB_Blue);
						break;
					}
				}

			}

			//绘完波形直接清零
			for(i=0;i<MAXSAMPLE_gui;i++)
				{Ylen_FFT[i]=0;}
		}
	}
	else
		return ERR_POINTER_EMPTY;

	return GUI_SUCCESS;	
}

//进度条函数，PROGRESS_MAXLEN是进度条满格，tag表示进度，当tag == PROGRESS_MAXLEN时，
//进度条满格，很有用的东西，恩
int DrawControlProgress(HWND hwnd)
{
	int iLeftScr,iTopScr;

	if(hwnd)
		{
		GUI_FORM* pForm = (GUI_FORM*)(hwnd->pOwner);
		SCR*  pScr = (SCR*)(pForm->pScreen);
		iLeftScr = pForm->left + hwnd->left;
		iTopScr = pForm->top + hwnd->top;
		//清除Progress所在区域，将区域颜色设为Progress的backcolor
		FillRect(pScr,iLeftScr,iTopScr,hwnd->width,hwnd->height,&(hwnd->backcolor));
		//是否visibled
		if(hwnd->visibled)
			{		
			
			DrawRect(pScr, iLeftScr,iTopScr, 
					hwnd->width , hwnd->height , &RGB_Black);
			if(hwnd->tag>0)
				{
				if(hwnd->tag>PROGRESS_MAXLEN)
					{
					FillRect(pScr,iLeftScr,iTopScr,hwnd->width,hwnd->height,&RGB_Black);
					}
				else
					//画进度条的函数
					{
					FillRect(pScr,iLeftScr,iTopScr,hwnd->width*hwnd->tag/PROGRESS_MAXLEN,hwnd->height,&RGB_Black);
					}
				}
			}
		}
	else
		return ERR_POINTER_EMPTY;

	return GUI_SUCCESS;	
}
//////////////////////////////////////////////////////////////////
//WinControlShow 是写完framebuffer后紧接着给LCD发消息
//直接显示一个控件
int WinControlShow(HWND handle)
{
	GUI_FORM* pForm;
	if(handle)
		{
		//如果handle的所在的form是visibled则进行下一步
		//否则不进行处理。
		pForm =(GUI_FORM*)(handle->pOwner);
		if(pForm&&pForm->visibled)
			{
			switch(handle->type)
				{
				case GWC_BUTTON:
					DrawControlButton(handle);
					SendLcdMessage((SCR*)(pForm->pScreen),handle->left+pForm->left, 
						handle->top+pForm->top, handle->width, handle->height);
					break;
				case GWC_EDIT:
					DrawControlEdit(handle);
					SendLcdMessage((SCR*)(pForm->pScreen),handle->left+pForm->left, 
						handle->top+pForm->top, handle->width, handle->height);
					break;
				case GWC_INT_EDIT:
					DrawControlEdit(handle);
					SendLcdMessage((SCR*)(pForm->pScreen),handle->left+pForm->left, 
						handle->top+pForm->top, handle->width, handle->height);
					break;
				case GWC_FLOAT_EDIT:
					DrawControlEdit(handle);
					SendLcdMessage((SCR*)(pForm->pScreen),handle->left+pForm->left, 
						handle->top+pForm->top, handle->width, handle->height);
					break;
				case GWC_TEXT:
					DrawControlText(handle);					
					SendLcdMessage((SCR*)(pForm->pScreen),handle->left+pForm->left, 
						handle->top+pForm->top, handle->width, handle->height);
					break;
				//modified by zzm
				//case GWC_GROUP:
					//DrawControlGroup(handle);
					//SendLcdMessage((SCR*)(pForm->pScreen),handle->left+pForm->left, 
						//handle->top+pForm->top, handle->width, handle->height);

					break;
				case GWC_PROGRESS:
					DrawControlProgress(handle);
					SendLcdMessage((SCR*)(pForm->pScreen),handle->left+pForm->left, 
						handle->top+pForm->top, handle->width, handle->height);

					break;
				case GWC_SORT_TEXT:
					DrawControlSortText(handle);
					//此处的宽度和高度与其他地方不同，不是hwnd-width 和hwnd->height,
					//是固定死的，宽度＝BMPW*MAXH_DEVICE，高度＝BMPW
					SendLcdMessage((SCR*)(pForm->pScreen),handle->left+pForm->left, 
						handle->top+pForm->top, BMPW*MAXH_DEVICE, BMPW);
				case GWC_HLINE:
					DrawControlHLine(handle);
					SendLcdMessage((SCR*)(pForm->pScreen),handle->left+pForm->left, 
						//handle->top+pForm->top, BMPW*MAXH_DEVICE, BMPW);
						handle->top+pForm->top, handle->width, 1);
					break;

				case GWC_LINE:
					DrawControlLine(handle);
					if((handle->left > handle->width)&&(handle->top >handle->height) )
					SendLcdMessage((SCR*)(pForm->pScreen),handle->width+pForm->left, 
						handle->height+pForm->top, handle->left+pForm->left, handle->top+pForm->top);
					else if((handle->left < handle->width)&&(handle->top >handle->height))
					SendLcdMessage((SCR*)(pForm->pScreen),handle->left+pForm->left, 
						handle->height+pForm->top, handle->width+pForm->left, handle->top+pForm->top);
					else if((handle->left < handle->width)&&(handle->top <handle->height))
					SendLcdMessage((SCR*)(pForm->pScreen),handle->left+pForm->left, 
						handle->top+pForm->top, handle->width+pForm->left, handle->height+pForm->top);
					else if((handle->left > handle->width)&&(handle->top <handle->height))
					SendLcdMessage((SCR*)(pForm->pScreen),handle->width+pForm->left, 
						handle->top+pForm->top, handle->left+pForm->left, handle->height+pForm->top);
					
					
					break;
					
				case GWC_VLINE:
					DrawControlVLine(handle);
					SendLcdMessage((SCR*)(pForm->pScreen),handle->left+pForm->left, 
						handle->top+pForm->top, 1, handle ->height);
					break;
				case GWC_HOOK:
					DrawControlHOOK(handle);
					SendLcdMessage((SCR*)(pForm->pScreen),handle->left+pForm->left, 
						handle->top+pForm->top-10, handle->width+10, handle->height+10);
					break;
				case GWC_BMP:
					DrawControlGroup(handle);
					SendLcdMessage((SCR*)(pForm->pScreen),handle->left+pForm->left, 
						handle->top+pForm->top, handle->width, handle->height);
					break;
				case GWC_RECT:
					DrawControlRect(handle);
					SendLcdMessage((SCR*)(pForm->pScreen),handle->left+pForm->left, 
						handle->top+pForm->top, handle->width, handle->height);
					break;
				case GWC_CIRCLE:
					DrawControlCircle(handle);
					//SendLcdMessage((SCR*)(pForm->pScreen),150,   handle->top-90, 550, 180);

					break;
				case GWC_CIRCLE_ALL:
					DrawControlCircleAll(handle);
					//SendLcdMessage((SCR*)(pForm->pScreen),150,   handle->top-90, 550, 180);
					break;
				
				default:
					//啥也不干
					break;
				}
			}
	
		}
	else
		return ERR_POINTER_EMPTY;

	return	GUI_SUCCESS;
}
//////////////////////////////////////////////////////////////////////
//WinControlShowWithoutUpdate 是写完framebuffer后不给LCD发消息
//仅仅改变framebuffer里的数据，而不发送LCD消息，这样也就不显示
int WinControlShowWithoutUpdate(HWND handle)
{
	GUI_FORM* pForm;
	if(handle)
		{
		//如果handle的所在的form是visibled则进行下一步
		//否则不进行处理。
		pForm =(GUI_FORM*)(handle->pOwner);
		if(pForm&&pForm->visibled)
			{		
			switch(handle->type)
				{
				case GWC_BUTTON:
					DrawControlButton(handle);
					break;
				case GWC_EDIT:
					DrawControlEdit(handle);
					break;
				case GWC_INT_EDIT:
					DrawControlEdit(handle);
					break;
				case GWC_FLOAT_EDIT:
					DrawControlEdit(handle);
					break;
				case GWC_TEXT:
					DrawControlText(handle);
					break;
				//modified by zzm
				//case GWC_GROUP:
					//break;
				case GWC_PROGRESS:
					DrawControlProgress(handle);
					break;
				case GWC_SORT_TEXT:
					DrawControlSortText(handle);
					break;
				case GWC_HLINE:
					DrawControlHLine(handle);
					break;
				case GWC_VLINE:
					DrawControlVLine(handle);
					break;
				case GWC_LINE:
					DrawControlLine(handle);
					break;
				case GWC_HOOK:
					DrawControlHOOK(handle);
					break;
				case GWC_BMP:
					DrawControlGroup(handle);
					//modified by zzm
					//DrawControlBmp(handle);
					break;
				case GWC_CIRCLE:
					DrawControlCircle(handle);
					break;
				case GWC_CIRCLE_ALL:
					DrawControlCircleAll(handle);
					break;
				case GWC_RECT:
					DrawControlRect(handle);
					break;
				default:
					//啥也不干
					break;
				}
			}
		}
	else
		return ERR_POINTER_EMPTY;

	return	GUI_SUCCESS;


}

//直接切换到pScreen的下一个焦点处，当现在的焦点是最后一个控件时，则下一个焦点控件从第一个开始
GUI_WINCONTROL* SwitchToNextFocus(SCR* pScreen)
{
	GUI_WINCONTROL*  pCurrent;
	GUI_WINCONTROL*  pNext;	
	if((NULL != pScreen)&&(NULL != pScreen->formlink.pCurrentForm)&&
		(NULL != pScreen->formlink.pCurrentForm->pFocusChild))
		{
		/*
			当前焦点不能是canFoucus为FALSE的控件,
			要切换到的下一个窗口也不能。
		*/
		
		pCurrent = pScreen->formlink.pCurrentForm->pFocusChild;
		pNext = pCurrent;		
		do
			{
			pNext = pNext->pNext;
			if(!pNext)
				{
				pNext = pScreen->formlink.pCurrentForm->pFirstChild;
				}
			}
		//目的是找到下一个焦点控件
		while(((!(pNext->visibled))||(!(pNext->canFocus)))&&(pNext !=pCurrent));
		pScreen->formlink.pCurrentForm->pFocusChild = pNext;
		WinControlShow(pCurrent);		//重新刷新一遍先前的焦点控件
		WinControlShow(pScreen->formlink.pCurrentForm->pFocusChild);
		//刷新下一个焦点控件
		return pNext;
		}
	else
		return  NULL;
}

//直接切换到pScreen的上一个焦点处，当现在的焦点是第一个控件时，则上一个焦点控件从最后一个开始
GUI_WINCONTROL* SwitchToPrevFocus(SCR* pScreen)
{
	GUI_WINCONTROL*  pCurrent;
	GUI_WINCONTROL*  pPrev;	
	if((NULL != pScreen)&&(NULL != pScreen->formlink.pCurrentForm)&&
		(NULL != pScreen->formlink.pCurrentForm->pFocusChild))
		{
		/*
			当前焦点不能是canFoucus为FALSE的控件,
			要切换到的前一个窗口也不能。
		*/
		
		pCurrent = pScreen->formlink.pCurrentForm->pFocusChild;
		pPrev = pCurrent;		
		do
			{
			pPrev = pPrev->pPrev;
			if(!pPrev)
				{
				pPrev = pScreen->formlink.pCurrentForm->pLastChild;
				}
			}
		//目的是找到上一个焦点控件
		while(((!(pPrev->visibled))||(!(pPrev->canFocus)))&&(pPrev !=pCurrent));
		pScreen->formlink.pCurrentForm->pFocusChild = pPrev;
		WinControlShow(pCurrent);//重新刷新一遍先前的焦点控件
		WinControlShow(pScreen->formlink.pCurrentForm->pFocusChild);
		//刷新下一个焦点控件
		return pPrev;
		}
	else
		return  NULL;

}

//直接切换到pForm的下一个焦点处并显示，当现在的焦点是最后一个控件时，则下一个焦点控件从第一个开始
GUI_WINCONTROL* FormSwitchToNextFocus(GUI_FORM* pForm)
{
	GUI_WINCONTROL*  pCurrent;
	GUI_WINCONTROL*  pNext;	
	if((NULL != pForm)&&(NULL != pForm->pFocusChild))
		{
		/*
			当前焦点不能是canFoucus为FALSE的控件,
			要切换到的下一个控件也不能。
		*/
		
		pCurrent = pForm->pFocusChild;
		pNext = pCurrent;		
		do
			{
			pNext = pNext->pNext;
			if(!pNext)
				{
				pNext = pForm->pFirstChild;
				}
			}
		while(((!(pNext->visibled))||(!(pNext->canFocus)))&&(pNext !=pCurrent));
		pForm->pFocusChild = pNext;
		WinControlShow(pCurrent);		
		WinControlShow(pForm->pFocusChild);
		//画焦点框
		DrawRect((SCR*)(pForm->pScreen), pForm->left+pNext->left,pForm->top+pNext->top,pNext->width, pNext->height, &RGB_Black);		
		return pNext;
		}
	else
		return  NULL;
}

//直接切换到pForm的上一个焦点处并显示，当现在的焦点是第一个控件时，则上一个焦点控件从最后一个开始

GUI_WINCONTROL* FormSwitchToPrevFocus(GUI_FORM* pForm)
{
	GUI_WINCONTROL*  pCurrent;
	GUI_WINCONTROL*  pPrev;	
	if((NULL != pForm)&&	(NULL != pForm->pFocusChild))
		{
		/*
			当前焦点不能是canFoucus为FALSE的控件,
			要切换到的前一个控件也不能。
		*/
		
		pCurrent = pForm->pFocusChild;
		pPrev = pCurrent;		
		do
			{
			pPrev = pPrev->pPrev;		
			if(!pPrev)
				{
				pPrev = pForm->pLastChild;
				}
			
			}
		while(((!(pPrev->visibled))||(!(pPrev->canFocus)))&&(pPrev !=pCurrent));
		pForm->pFocusChild = pPrev;
		WinControlShow(pCurrent);		
		WinControlShow(pForm->pFocusChild);		
		//画焦点框
		DrawRect((SCR*)(pForm->pScreen), pForm->left+pPrev->left,pForm->top+pPrev->top,pPrev->width, pPrev->height, &RGB_Black);		
		
		return pPrev;
		}
	else
		return  NULL;

}
//全局变量bMessage表明当前是否有阻塞式messagebox存在
//FALSE = 无TRUE= 有,在MsgBox函数中要把它置为TRUE，在相应
//的消息预处理函数PreProcessMsg中,在相应的按键消息处理
//中将其置为FALSE.

int	MsgBox(SCR* pScr,const char* pText,uint iType)
{
	if((pScr)&&(pText)&&(!bMessage))
		{
		gfMessageBox.pScreen = pScr;

		strcpy(gwMB_Text.text,pText);

		if(iType&MB_OK)
			gwMB_OK.visibled = TRUE;
		else
			gwMB_OK.visibled = FALSE;

		if(iType&MB_CANCEL)
			gwMB_CANCEL.visibled = TRUE;
		else
			gwMB_CANCEL.visibled = FALSE;
		
		FormShow(&gfMessageBox);
		//画焦点框
		DrawRect(pScr, gfMessageBox.left+gfMessageBox.pFocusChild->left, 
				gfMessageBox.top+gfMessageBox.pFocusChild->top,
				gfMessageBox.pFocusChild->width,
				gfMessageBox.pFocusChild->height, &RGB_Black);		

		bMessage = TRUE;
		
		return GUI_SUCCESS;
		}
	else
		return ERR_POINTER_EMPTY;
}
//返回pScr的当前的Form
GUI_FORM*	GetCurrentForm(SCR* pScr)
{
	if(pScr)
		return pScr->formlink.pCurrentForm;
	else
		return NULL;
}
//返回pScr的当前的焦点控件
GUI_WINCONTROL*	GetCurrentFocus(SCR* pScr)
{
	if(pScr)
		return pScr->formlink.pCurrentForm->pFocusChild;
	else
		return NULL;
}

//这个函数的功能是，在x，y座标处画一个点，颜色为pRgb，不更新pScreen的framebuffer
int	DrawDot_IO(SCR* pScreen,uint x,uint y,RGB* pRgb)
{
	uint	iNum;
	if((pScreen!=NULL)&&(pRgb!=NULL))