nana.c.tar.gz_nano_ncurses

/* * ===================================================================================== * * Filename: nana.c * * Description: nano structure * * Version: 1.0 * Created: 2012年10月20日 14时30分34秒 * Revision: none * Compiler: gcc * * Author: mtawaken (gcs), mtawaken@gmail.com * Company: NJU * * ===================================================================================== */ #include<unistd.h> #include<stdlib.h> #include<curses.h> #include<string.h> #include<locale.h> /* * defines */ #define TOPWIN_H 2 #define BOTTOMWIN_H 3 #define EDITWIN_H (LINES-TOPWIN_H-BOTTOMWIN_H) #define TMP_SIZE ((COLS+1)*3)//support only one line input at one time typedef struct ScreenLine{ int lineNo; int shift; } ScreenLine; typedef struct Func{ void (*func)(); int invokeKey; struct Func* next; } Func; typedef struct Line{ char *content; int contentFactor; int lineNo; int size; int lines; int lastCols; struct Line *next; struct Line *previous; } Line; typedef struct MCursor{ int x,y; } MCursor; /* * methods */ int doInput(); void doOutput(int); void functionInit(); Func* createFunction(int,void*,Func*); void freeFunctionList(Func*); void doExit(); void doDelete(); void cursorBackward(); void updateLine(Line*); void reAllocLine(Line*); void getPositionByYX(Line**,int*,int,int); void cursorForward(); void cursorUp(); void cursorDown(); /* * globals */ WINDOW *topScr,*bottomScr,*editScr; char *tmp; int *rawInput; bool mExit; ScreenLine screenLine; Func *functionList; Line *lineList; bool newAppending; bool needRefresh; bool needAdjustCursor; MCursor mCursor; int main(int args,char * argv[]){ setlocale(LC_ALL,""); initscr(); raw(); noecho(); start_color(); init_pair(1,COLOR_CYAN,COLOR_BLACK); init_pair(2,COLOR_WHITE,COLOR_BLACK); /* * split windows */ topScr = newwin(TOPWIN_H,COLS,0,0); editScr = newwin(EDITWIN_H,COLS,TOPWIN_H,0); bottomScr = newwin(BOTTOMWIN_H,COLS,LINES-BOTTOMWIN_H,0); leaveok(topScr,false); leaveok(editScr,false); leaveok(bottomScr,false); keypad(topScr,TRUE); keypad(editScr,TRUE); keypad(bottomScr,TRUE); scrollok(editScr,false); scrollok(topScr,false); scrollok(bottomScr,false); wattrset(topScr,COLOR_PAIR(1)); wattrset(bottomScr,COLOR_PAIR(1)); wattrset(editScr,COLOR_PAIR(2)); attron(A_BOLD); tmp = (char*)malloc(TMP_SIZE*sizeof(char)); memset(tmp,'-',TMP_SIZE); tmp[COLS] = 0; mvwprintw(topScr,TOPWIN_H-1,0,"%s",tmp); mvwprintw(bottomScr,0,0,"%s",tmp); mvwprintw(topScr,0,0,"%s","NANO"); mvwprintw(bottomScr,1,0,"%s","STATUS"); wrefresh(topScr); wrefresh(bottomScr); attroff(A_BOLD); /* * function initialization */ functionInit(); /* * line initialization */ lineList = (Line*)malloc(sizeof(Line)); memset(lineList,0,sizeof(Line)); Line* tmpLine = (Line*)malloc(sizeof(Line)); memset(tmpLine,0,sizeof(Line)); reAllocLine(tmpLine); tmpLine->lineNo = 1; tmpLine->lines = 1; tmpLine->previous = lineList; lineList->next = tmpLine; /* * data initialization */ screenLine.lineNo = 1; screenLine.shift = 0; mExit = false; rawInput = (int*)malloc(sizeof(int)*TMP_SIZE); newAppending = true; needRefresh = true; needAdjustCursor = false; /* * main process */ move(TOPWIN_H+1,0); //func-1,ctrl+x-1,character-1,chineses-3,byinputmethod-n int size; while(!mExit){ size = doInput(); doOutput(size); } wrefresh(editScr); endwin(); return EXIT_SUCCESS; } void functionInit(){ functionList = (Func*)malloc(sizeof(Func)); memset(functionList,0,sizeof(Func)); Func *lastFunc; lastFunc = createFunction(24,(void*)&doExit,functionList); lastFunc = createFunction(263,(void*)&doDelete,lastFunc); lastFunc = createFunction(260,(void*)&cursorBackward,lastFunc); lastFunc = createFunction(261,(void*)&cursorForward,lastFunc); lastFunc = createFunction(259,(void*)&cursorUp,lastFunc); lastFunc = createFunction(258,(void*)&cursorDown,lastFunc); } Func* createFunction(int invokeKey,void* realFunction,Func *previous){ Func *currentFunc = (Func*)malloc(sizeof(Func)); memset(currentFunc,0,sizeof(Func)); currentFunc->func = realFunction; currentFunc->invokeKey = invokeKey; currentFunc->next = 0; previous->next = currentFunc; return currentFunc; } void freeFunctionList(Func*current){ if(!current) return; if(current->next){ freeFunctionList(current->next); } free(current); } void freeOneLine(Line* line){ if(line){ if(line->content){ free(line->content); } free(line); } } void freeLines(){ Line*tempLine,*nextLine; tempLine=lineList; while(tempLine){ nextLine = tempLine->next; freeOneLine(tempLine); tempLine = nextLine; } } void updateLineNoAfter(Line* line){ int lineNoUpdater = line->lineNo+1; Line *tmpLine = line->next; while(tmpLine){ tmpLine->lineNo = lineNoUpdater; lineNoUpdater++; tmpLine = tmpLine->next; } } void jumpLineUnit(char *p,char** newP,int* jumpCol){ if(!*p){ *newP = p; *jumpCol = 0; return; } int mbLen,wcWidth; mbLen = mblen(p,MB_CUR_MAX); if(mbLen == 3){ //it's a chinese *jumpCol = 2; }else if(mbLen == 1){ if(*p == 9){ //it's a tab *jumpCol = 8; }else if(*p == 10){ *newP = 0; }else{ wchar_t wChar; mbtowc(&wChar,p,MB_CUR_MAX); wcWidth = wcwidth(wChar); if(wcWidth == 1){ //normal character *jumpCol = 1; }else{ //unprintable contorl letter *jumpCol = 2; } } }else{ *newP = 0; } *newP = p + mbLen; } void updateLine(Line* line){ char *p = line->content; int colCount,jumpCol,size; char *newP; colCount = 0; size = 0; while(p&&*p){ jumpLineUnit(p,&newP,&jumpCol); if(newP!=0){ colCount +=jumpCol; size += (newP-p); } p = newP; } line->lines = (colCount/COLS)+1; line->lastCols = colCount%COLS; line->size = size; } void reAllocLine(Line* line){ int oldSize = (line->contentFactor) * TMP_SIZE; line->contentFactor += 1; int newSize = (line->contentFactor) * TMP_SIZE; char *newContent = (char*)malloc(sizeof(char)*newSize); memset(newContent,0,newSize); char *p = line->content; int index = 0; while(index<oldSize && p[index]){ newContent[index] = p[index]; index++; } free(p); line->content = newContent; } void jumpCols(int jumpCols,char*p,char**newP,char**beforeNewP){ int jumpedCols = 0; int jumpUnit; char* startP = p; char* beforeP = p; *newP=p; while(startP&&*startP&&jumpedCols<jumpCols){ beforeP = *newP; jumpLineUnit(startP,&*newP,&jumpUnit); if(*newP!=0){ jumpedCols+=jumpUnit; } startP = *newP; } if(beforeNewP){ *beforeNewP = beforeP; } } void getPosition(Line** plineToInsert,int *pshift,int* pcursorY,int* pcursorX){ int cursorY,cursorX; getyx(editScr,cursorY,cursorX); getPositionByYX(plineToInsert,pshift,cursorY,cursorX); *pcursorX=cursorX; *pcursorY=cursorY; } void getPositionByYX(Line** plineToInsert,int *pshift,int cursorY,int cursorX){ int scrLine,scrShift; Line* lineToInsert; int lineShift; scrLine = screenLine.lineNo; scrShift = screenLine.shift; Line* line = lineList->next; while(l