uilistbox.c

嵌入工linux开发的源码

/**************************************************************
        INCLUDE FILE
***************************************************************/
#include <pr2k.h>
#include <uiwnd.h>

#include <uiscroll.h>
#include <uiListbox.h>
#include <uiGraph.h>     

#include <keypad.h>


/**************************************************************
        DATA STRUCTURE
**************************************************************/

/*
typedef struct tagListboxItem
{
	char	szCaption[LISTBOX_ITEM_LENGTH+1] ;	// include NULL character
	short	nStatus ;							//selected or no selected	
	BYTE 	*icon;								// icon image
}TListboxItem;

typedef struct tagListbox
{
	TGuiControl base ;
	
	DList *pItemList ;  				// head of item list
	
	// property 
	short nItemCount ;					// count of items
	short nOffset ;						// first visible item 
	short nSelectedCount ;				// count of selected items
	short nLastHited;					//last hited item
	short nLastSelected;				// last selected item 
	
	short nSecondSelect;
	WORD wGap ; 		                // item height
	HNDL hVScroll ;						// scroll bar in listbox 

	short a_nColumn_Start[LISTBOX_MAX_COLUMN]; //this array for column start address
}TListbox;
*/

typedef struct tagPopList
{
	HNDL handle;
	HNDL container;
	WORD top,bottom;
	WORD left,right;
	BYTE * img_buf;
}TPOPLIST;

TPOPLIST POPUP={0,0,0,0,0,0,0};

#define LEFT_BLANK_BORDER		3
#define TOP_BLANK_BORDER		2
#define RIGHT_BLANK_BORDER		12
#define BOTTOM_BLANK_BORDER		2

#define LEFT_BLANK_NONE_BORDER		0
#define TOP_BLANK_NONE_BORDER		0
#define RIGHT_BLANK_NONE_BORDER		9
#define BOTTOM_BLANK_NONE_BORDER	0

int _guiListbox_DrawItem(TListbox * pListbox,WORD start,WORD end);
int _guiListbox_Paint(TListbox * pListbox,WORD start);
int _guiListbox_ShowString(HNDL hListbox,char *str,int x,int y);
DLL_EXP(WORD) guiTextField_LostFocus(void);
static void  guiShowStringEx(HNDL handle, const char *szText,int x,int y,int ext, int complex_color, int style);


void _guiListbox_Action(DWORD handle,WORD actionType,WORD x,WORD y)
{
	short top,left,bottom,right,gap,index,nOffset,n;
	short topBlank,leftBlank,bottomBlank,rightBlank;

//	short nSavedSelected=-1;
	HNDL hListbox;
	TListbox *pListbox;
	TGUISCROLL *pScroll;
	TGuiMessage tMessage;

	hListbox=(HNDL)handle;
	pListbox=(TListbox *)handle;
	pScroll=(TGUISCROLL *)pListbox->hVScroll;

	//check flag
	if(pListbox->base.checkFlag!=GUI_CONTROL_CHECK_FLAG)
	{
		return;
	}
	
	if( pListbox->base.status & CONTROL_NOT_ACTIVE)
	{
		return;
	}
	
//	nSavedSelected=pListbox->nLastSelected;
	if((pListbox->base.style&LISTBOX_NONE_BORDER)==0)
	{
		leftBlank=LEFT_BLANK_BORDER;
		topBlank=TOP_BLANK_BORDER;
		rightBlank=RIGHT_BLANK_BORDER;
		bottomBlank=BOTTOM_BLANK_BORDER;
	}
	else
	{
		leftBlank=LEFT_BLANK_NONE_BORDER;
		topBlank=TOP_BLANK_NONE_BORDER;
		rightBlank=RIGHT_BLANK_NONE_BORDER;
		bottomBlank=BOTTOM_BLANK_NONE_BORDER;
	}

	gap=pListbox->wGap;

	//translate Coordinate
	top=pListbox->base.top;
	left=pListbox->base.left;
	bottom=pListbox->base.bottom;
	right=pListbox->base.right;

	if(guiControl_QueryIsActive(handle)==FALSE)
	{
		return;
	}

	//deal hardkey
	if(actionType==KEYPAD_CLICK)
	{
		switch(x)
		{
		case  HARDKEY_UP:
			if(pListbox->hVScroll)
			{
				n=guiScroll_GetPos(pListbox->hVScroll);
				if(n>0)
				{
					guiScroll_SetPos(pListbox->hVScroll,(WORD)(n-1));
					n=guiScroll_GetPos(pListbox->hVScroll);
					if(pListbox->nOffset!=n)
					{
						pListbox->nOffset=n;
						_guiListbox_Paint(pListbox ,pListbox->nOffset);
					}
				}
			}
			break;                   

		case HARDKEY_DOWN:
			if(pListbox->hVScroll)
			{
				n=guiScroll_GetPos(pListbox->hVScroll);
				if(n>=0)
				{
					guiScroll_SetPos(pListbox->hVScroll,(WORD)(n+1));
					n=guiScroll_GetPos(pListbox->hVScroll);
					if(pListbox->nOffset!=n)
					{
						pListbox->nOffset=n;
						_guiListbox_Paint(pListbox ,pListbox->nOffset);
					}
				}
			}
			break;
		default:
			break;
		}
		return;
	}

	//deal scrollbar
	if(x<=right&&x>=right-_SCROLLBAR_WIDTH_&&y>=top+1&&y<=bottom-1)
	{
		pScroll->base.actionFun((HNDL)pScroll,actionType,x,y);
		nOffset=guiScroll_GetPos((HNDL)pScroll);
		if(pListbox->nOffset!=nOffset)
		{
			pListbox->nOffset=nOffset;
			_guiListbox_Paint(pListbox ,pListbox->nOffset);
		}
		return;
	}

	//deal selecting or deselecting
	if(x>=left&&x<=right&&y>=top+topBlank&&y<=bottom-bottomBlank-((bottom-bottomBlank)-(top+topBlank)+1)%pListbox->wGap)
	{
		index=(y-top-topBlank)/gap+pListbox->nOffset;

		if(actionType==PENDOWN||actionType==PENMOVE)
		{
			if(pListbox->base.style&LISTBOX_MULTI_SELECT)
			{
				if(guiListbox_IsSelected(hListbox,index))
				{
					if(actionType!=PENMOVE||index!=pListbox->nLastHited&&!guiListbox_IsSelected(hListbox,pListbox->nLastHited))
					{
						guiListbox_Deselect(hListbox,index);
					}
				}
				else
				{
					if(actionType!=PENMOVE||index!=pListbox->nLastHited&&guiListbox_IsSelected(hListbox,pListbox->nLastHited))
					{
						guiListbox_Select(hListbox,index);
					}
				}
			}
			else
			{
				if(!guiListbox_IsSelected(hListbox,index))
				{
						if(index<pListbox->nItemCount)     // by zhangxp
						{

							guiListbox_Deselect(hListbox,pListbox->nLastHited);
							guiListbox_Select(hListbox,index);
						}
				}
				else
				{
					if(actionType==PENDOWN)
					{
						guiListbox_Select(hListbox,index);
					}
					if(actionType!=PENMOVE||index!=pListbox->nLastHited)
					{
				//		guiListbox_Deselect(hListbox,pListbox->nLastHited);
					}
				}
			}
		}
		if(actionType==PENUP&&index<pListbox->nItemCount)
		{
			tMessage.handle=hListbox;
			tMessage.x=index;
			tMessage.y=pListbox->nSecondSelect;
			if(tMessage.y)
			{
				tMessage.messageType=LISTBOX_CLICK;
			}
			tMessage.messageType=LISTBOX_CLICK;

			guiEnqueue(gpTopWindow->messageQueue,&tMessage);
			guiPenSound();
		}
	}
	else if((pListbox->base.style&LISTBOX_MULTI_SELECT)==0)
	{
		// hit blank region, don't process by zhangxp   2003/06/10
		/*
		if(pListbox->nLastHited!=-1)
		{
			guiListbox_Deselect(hListbox, pListbox->nLastHited); 
			pListbox->nLastHited=-1;
			pListbox->nSecondSelect=0;
		}
		*/
	}
	return;
}

int _guiListbox_Paint(TListbox * pListbox,WORD start)
{
	int top,left,bottom,right;
	HNDL hListbox,hBoard;
	TGUISCROLL *pScroll;

	hListbox=(HNDL)pListbox;
	pScroll=(TGUISCROLL *)pListbox->hVScroll;

	if(pListbox->base.checkFlag!=GUI_CONTROL_CHECK_FLAG)
	{
		return STATUS_ERR;
	}
	if(!guiControl_IsVisible(hListbox))
	{
		return STATUS_ERR;
	}

	if(pListbox->base.container!=NULL)
	{
		pScroll->base.container=pListbox->base.container;
	}
	else if(pListbox->base.vportHandle!=NULL)
	{
		pScroll->base.vportHandle=pListbox->base.vportHandle;
	}

	top=0;
	left=0;
	right=pListbox->base.right-pListbox->base.left;
	bottom=pListbox->base.bottom-pListbox->base.top;

	if(pListbox->base.style&LISTBOX_POPUP)
	{
		_guiConvertXY(hListbox,&left,&top);
		_guiConvertXY(hListbox,&right,&bottom);
		hBoard=0;
	}
	else
	{
		hBoard=hListbox;
	}

//	guiEnterWCS();
//	guiClearBlock(hListbox,left,top,right,bottom,GUI_WHITE,REPLACE_STYLE);
	if((pListbox->base.style&LISTBOX_NONE_BORDER)==0)
	{
		guiDrawLine(hBoard,left,top,right,top,GUI_BLACK,GUI_SOLID);
		guiDrawLine(hBoard,left,top,left,bottom,GUI_BLACK,GUI_SOLID);
		guiDrawLine(hBoard,left,bottom,right,bottom,GUI_BLACK,GUI_SOLID);
		guiDrawLine(hBoard,right,top,right,bottom,GUI_BLACK,GUI_SOLID);
	}
	if(start<pListbox->nOffset)
	{
		pListbox->nOffset=start;
	}

	//deal scrollbar
	pScroll->base.left=pListbox->base.right-_SCROLLBAR_WIDTH_;
	pScroll->base.top=pListbox->base.top+1;
	pScroll->base.right=pListbox->base.right-1;
	pScroll->base.bottom=pListbox->base.bottom-1;
	guiScroll_Update((HNDL)pScroll,pListbox->nItemCount,(bottom-top-4)/pListbox->wGap,pListbox->nOffset);

	if(pListbox->nItemCount>0)
	{
		_guiListbox_DrawItem(pListbox,start,pListbox->nItemCount-1);
	}
	else
	{
		guiClearBlock(hBoard,left+1,top+1,right-1,bottom-1,GUI_WHITE,GUI_SOLID);
	}
//	guiExitWCS();
	return STATUS_OK;
}

int _guiListbox_DrawItem(TListbox * pListbox,WORD start,WORD end)
{
	int iStart,iStringHeight,iOffset_Y;
	WORD i,index,wSumLine;
	int top,left,bottom,right,gap;
	WORD topBlank,leftBlank,bottomBlank,rightBlank;

	HNDL hListbox,hBoard;
	TListboxItem *pItem;

	hListbox = (HNDL)pListbox;

	if(pListbox->base.status&CONTROL_NOT_VISIBLE)
	{
		return STATUS_ERR;
	}

	if((pListbox->base.style&LISTBOX_NONE_BORDER)==0)
	{
		leftBlank=LEFT_BLANK_BORDER;
		topBlank=TOP_BLANK_BORDER;
		rightBlank=RIGHT_BLANK_BORDER;
		bottomBlank=BOTTOM_BLANK_BORDER;
	}
	else
	{
		leftBlank=LEFT_BLANK_NONE_BORDER;
		topBlank=TOP_BLANK_NONE_BORDER;
		rightBlank=RIGHT_BLANK_NONE_BORDER;
		bottomBlank=BOTTOM_BLANK_NONE_BORDER;
	}

	gap=pListbox->wGap;
	top=0;
	bottom=pListbox->base.bottom-pListbox->base.top;
	left=0;
	right=pListbox->base.right-pListbox->base.left;

	if(pListbox->base.style&LISTBOX_POPUP)
	{
		_guiConvertXY(hListbox,&left,&top);
		_guiConvertXY(hListbox,&right,&bottom);
		hBoard=0;
	}
	else
	{
		hBoard=hListbox;
	}

	wSumLine=(bottom-top-4)/gap;
	guiPushFont(GUI_DEFAULT_FONT);
	for(i=0;i<wSumLine;i++)
	{
		index=pListbox->nOffset+i;
		if(!(index>=start&&index<=end))
		{
			if(index>pListbox->nItemCount-1)
			{
				guiClearBlock(hBoard,left+leftBlank,top+i*gap+topBlank,right-rightBlank,top+topBlank+(i+1)*gap-1,GUI_WHITE,REPLACE_STYLE);
			}
			continue;
		}
		pItem=(TListboxItem *)DList_GetObject(pListbox->pItemList,index);
		guiClearBlock(hBoard,left+leftBlank,top+i*gap+topBlank,right-rightBlank,top+topBlank+(i+1)*gap-1,GUI_WHITE,REPLACE_STYLE);

		//draw icon and show string
		if(pListbox->base.style&LISTBOX_ENABLE_ICON)
		{
			if(pItem->icon!=NULL)
			{
				guiPutImage(hBoard,left+leftBlank,top+topBlank+i*gap+1,left+leftBlank+LISTBOX_ICON_SIZE-1,top+topBlank+i*gap+LISTBOX_ICON_SIZE,pItem->icon);
			}
			iStart=left+leftBlank+LISTBOX_ICON_SIZE;
		}
		else
		{
			iStart=left+leftBlank;
		}
		iStringHeight=guiGetStringHeight();
		iOffset_Y=iStringHeight>=gap?0:(gap-iStringHeight)/2;
		_guiListbox_ShowString(hListbox,pItem->szCaption,iStart,top+topBlank+i*gap+iOffset_Y);

		if(pItem->nStatus==ITEM_SELECTED)
		{
			guiInvertRect(hBoard,left+leftBlank,top+topBlank+i*gap,right-rightBlank,top+topBlank+(i+1)*gap-1);
		}

	}
	guiPopFont();
	return STATUS_OK;
}

/* create a listbox */
DLL_EXP(HNDL) guiListbox_Create( WORD left, WORD top, WORD right, WORD bottom, WORD gap, WORD style)
{
	WORD topBlank,bottomBlank;
	TListbox *pListbox;
	DList *pDList;

	//allocate space
	pListbox=(TListbox *)sc_malloc(sizeof(TListbox));
	if(pListbox==NULL)
	{
		return 0;
	}

	pDList=DList_Create();
	if(pDList==NULL)
	{
		sc_free(pListbox);
		return 0;
	}

	if((pListbox->base.style&LISTBOX_NONE_BORDER)==0)
	{
		topBlank=TOP_BLANK_BORDER;
		bottomBlank=BOTTOM_BLANK_BORDER;
	}
	else
	{
		topBlank=TOP_BLANK_NONE_BORDER;
		bottomBlank=BOTTOM_BLANK_NONE_BORDER;
	}

	//initialize value
	memset(pListbox,0,sizeof(TListbox));

	pListbox->base.type=CONTROL_LISTBOX;
	pListbox->base.handle=(HNDL)pListbox;
	pListbox->base.checkFlag=GUI_CONTROL_CHECK_FLAG;

	if(style&LISTBOX_POPUP)
	{
		pListbox->base.status=CONTROL_NOT_ACTIVE|CONTROL_NOT_VISIBLE;
	}
	else
	{
		pListbox->base.status=0;
	}

	pListbox->base.actionFun=_guiListbox_Action;
	pListbox->base.showFun=guiListbox_Show;
	pListbox->base.delFun=guiListbox_Delete;
	pListbox->base.font=GUI_DEFAULT_FONT;

	pListbox->base.top=top;
	pListbox->base.bottom=bottom;
	pListbox->base.left=left;
	pListbox->base.right=right;

	pListbox->base.style=style;

	pListbox->nOffset=0;
	pListbox->nSecondSelect=0;
	pListbox->nLastHited=-1;
	pListbox->nLastSelected=-1;
	pListbox->pItemList=pDList;
	pListbox->a_nColumn_Start[0]=0;
	pListbox->a_nColumn_Start[1]=-1;
	pListbox->wGap=gap<LISTBOX_DEFAULT_GAP?LISTBOX_DEFAULT_GAP:gap;
	if(pListbox->base.style & LISTBOX_POPUP)
	pListbox->hVScroll=guiScroll_Create(right-_SCROLLBAR_WIDTH_,top+1,bottom-1,((bottom-bottomBlank)-(top+topBlank))/pListbox->wGap,0,SCROLL_POPUP);
	else
	pListbox->hVScroll=guiScroll_Create(right-_SCROLLBAR_WIDTH_,top+1,bottom-1,((bottom-bottomBlank)-(top+topBlank))/pListbox->wGap,0,0);
	return (HNDL)pListbox;
}

/* delete a listbox */
DLL_EXP(int) guiListbox_Delete( HNDL hListbox )
{
	HNDL hScroll;
	TListbox *pListbox;
	pListbox=(TListbox *)hListbox;
	hScroll=pListbox->hVScroll;

	guiEnterWCS();
	if(pListbox->base.checkFlag!=GUI_CONTROL_CHECK_FLAG)
	{
		guiExitWCS();
		return STATUS_ERR;
	}
	DList_Delete(pListbox->pItemList);

	pListbox->base.checkFlag=0;
	kernelFree(pListbox);

	guiControl_Delete(hScroll);

	guiExitWCS();
	return STATUS_OK;
}

/* enable a listbox */
DLL_EXP(int) guiListbox_Show( HNDL hListbox )
{
	TListbox * pListbox;

	pListbox=(TListbox *)hListbox;

	guiEnterWCS();

	_guiListbox_Paint(pListbox,pListbox->nOffset);

	guiExitWCS();
	return STATUS_OK;
}

/* append listbox item */
DLL_EXP(int) guiListbox_AddItem( HNDL hListbox, const char *string)
{
	TListbox * pListbox;

	pListbox=(TListbox *)hListbox;

	return guiListbox_InsertItem(hListbox,pListbox->nItemCount,string);
}

/* insert listbox item */
DLL_EXP(int) guiListbox_InsertItem( HNDL hListbox, WORD index, const char *string)
{
	WORD wSumLine;
	TListboxItem * pItem;
	TListbox * pListbox;
	pListbox=(TListbox *)hListbox;

	guiEnterWCS();

	pItem=(TListboxItem *)sc_malloc(sizeof(TListboxItem));
	if(pItem==NULL)
	{
		guiExitWCS();
		return STATUS_ERR;
	}
	memset(pItem,0,sizeof(TListboxItem));
	strncpy(pItem->szCaption,string,LISTBOX_ITEM_LENGTH-1);
	pItem->szCaption[LISTBOX_ITEM_LENGTH-1]=0;

	if(index>pListbox->nItemCount-1)
	{
		DList_Append(pListbox->pItemList,pItem);
	}
	else
	{
		DList_Insert(pListbox->pItemList,index,pItem);
	}

	pListbox->nItemCount++;
	if(pListbox->nLastHited>=index)
	{
		pListbox->nLastHited++;
	}

	if(pListbox->nLastSelected>=index)
	{
		pListbox->nLastSelected++;
	}

	_guiListbox_Paint(pListbox,index);

	guiExitWCS();

	return STATUS_OK;
}

/* remove listbox item */
DLL_EXP(int) guiListbox_RemoveItem( HNDL hListbox, WORD index)
{
	TListboxItem * pItem;
	TListbox * pListbox;
	pListbox=(TListbox *)hListbox;

	guiEnterWCS();

	if(pListbox->base.checkFlag!=GUI_CONTROL_CHECK_FLAG)
	{
		guiExitWCS();
		return STATUS_ERR;
	}
	if(index>=pListbox->nItemCount)
	{
		guiExitWCS();
		return STATUS_ERR;
	}

	pItem=(TListboxItem *)DList_Remove(pListbox->pItemList,index);
	if(pListbox->nOffset>0&&pListbox->nOffset==index&&pListbox->nItemCount==index+1)
	{
		pListbox->nOffset--;
	}
	pListbox->nItemCount--;
	if(pItem->nStatus==ITEM_SELECTED)
	{
		if(pListbox->base.style&LISTBOX_MULTI_SELECT==1)
		{
			pListbox->nSelectedCount--;
		}
		if(pListbox->nLastHited==index)
		{
			pListbox->nLastHited=-1;
		}

		if(pListbox->nLastSelected==index)
		{
			pListbox->nLastSelected=-1;
		}
	}

	sc_free(pItem);

	_guiListbox_Paint(pListbox,pListbox->nOffset);

	guiExitWCS();
	return STATUS_OK;
}

/* remove all listbox items */
DLL_EXP(int) guiListbox_RemoveAll( HNDL hListbox )
{
	WORD i;
	WORD left,top,right,bottom;
	void * pItem;
	TListbox * pListbox;
	pListbox=(TListbox *)hListbox;

	guiEnterWCS();
	if(pListbox->base.checkFlag!=GUI_CONTROL_CHECK_FLAG)
	{
		guiExitWCS();
		return STATUS_ERR;
	}