Added Text Editor files
parent
b089bafa3c
commit
fb7e58d094
@ -0,0 +1,682 @@
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#include "texted.h"
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#define MAX_SIZE 1048576
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/* ********************************************************************************************************************************************** */
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// STUFF TO IMPLEMENT
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// ******DONE****** 1. Characters should be removed from array after backspace (maybe keep track of which element in the array the cursor is on.
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// ******DONE****** 2. Enter should add newline character to array.
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// ******DONE****** 3. Backspace and Left Arrow at first character in row should move up to the last character on the previous row. (vice versa for right arrow)
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// ********(PAGE UP AND) PAGE DOWN SOMETIMES DOESN'T MOVE REAL CURSOR ACCORDINGLY - TEXTCOUNTER SHOULD BE ADJUSTED******** 4. Page scrolling up/down (initially with page up/page down keys). - Idea: Implement by printing from nth new line character till first null character.
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// 5. (OPTIONAL): Convert the mainwin into a pad, to make scrolling easier.
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// **KIND OF DONE** 6. Word wrapping.
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// ******DONE****** 7. Getting Save File Location from argv
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// ******DONE?***** 8. Up Arrow and Down Arrow Keys.
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// ******DONE****** 9. Integrate with file manager program.
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// ******DONE****** 10. Opening and editing text files
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// **MOSTLY DONE*** 11. Save Dialog.
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// ******DONE****** 12. Insert character into array after pressing left arrow and typing a character.
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// SOLVE ERROR WITH LAST LINE IN A FILE (IT DOESN'T HAVE MAINX CHARACTERS AND IT DOESN'T HAVE TWO NEWLINES)
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// ******DONE****** 13. Backspace at first character ignores spaces.
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// ******DONE?***** 14. Adding character at last line of window.
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// ******DONE?***** 15. Page down/Page up with word wrapping.
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/* ********************************************************************************************************************************************** */
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int run(char* dir,WINDOW* mainwin,int argc) {
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char* text;
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char* saveLocation;
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// char* tempSaveLoc;
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int textCounter;
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int selRow=1;
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// int numCharsCurrent;
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// int numCharsNext;
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int selCol=1;
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int xSize,ySize,mainX,mainY;
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int charArrayCounter;
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FILE* myFile;
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int ch;
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int numLines;
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bool newLineFound;
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// int textIndex;
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// char* shortText;
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int upArrowDistance;
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int charsOnLine;
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text = malloc(MAX_SIZE * (sizeof(char)));
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initscr();
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noecho();
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// cbreak();
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raw();
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getmaxyx(stdscr,ySize,xSize);
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// mvwaddstr(stdscr,2,5,"^S - Save | ^C - Quit | ^R - Reset Cursor");
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mvwaddstr(stdscr,2,5,"^S - Save | ^C - Quit | <Page Down> - Scroll Down | <Page Up> - Scroll Up");
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// WINDOW* boxwin = newwin(ySize-7,xSize-8,5,5);
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keypad(mainwin,true);
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// box(boxwin,0,0);
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getmaxyx(mainwin,mainY,mainX);
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refresh();
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wrefresh(mainwin);
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// wrefresh(boxwin);
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wmove(mainwin,selRow,selCol);
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// ch = wgetch(mainwin);
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ch = ' ';
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textCounter=0;
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numLines=0;
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int numNewLinesFound=0;
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int indexToBegin=0;
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FILE* readFile;
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// int tempSelRow,tempSelCol;
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// if (argc > 1) {
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if (readFile = fopen(dir,"r")) {
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fread(text,MAX_SIZE,1,readFile);
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printFromIndex(mainwin,text,0,1,1,0);
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// } else {
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// strcpy(argv[1],tempSaveLoc);
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}
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// }
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wmove(mainwin,selRow,selCol);
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while (ch != ('s' & 0x1f) && (ch != ('c' & 0x1f))) {
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indexToBegin=0;
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numNewLinesFound=0;
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charsOnLine=0;
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if (numLines > 0) {
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for (int i=0;i<strlen(text);i++) {
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if (numNewLinesFound==numLines) {
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indexToBegin=i;
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break;
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}
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if (*(text+i)=='\n') {
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numNewLinesFound++;
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charsOnLine=0;
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} else {
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charsOnLine++;
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}
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if (charsOnLine>=mainX-2){
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numNewLinesFound++;
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charsOnLine=0;
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}
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}
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}
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// if (indexToBegin!=0){
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printFromIndex(mainwin,text,indexToBegin,selRow,selCol,numLines);
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// }
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box(mainwin,0,0);
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// getyx(mainwin,selRow,selCol);
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wmove(stdscr,1,1);
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wclrtoeol(stdscr);
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mvwprintw(stdscr,1,1,"%d,%d",selRow,selCol);
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mvwprintw(stdscr,3,1,"%c",findCharInArray(text,2,1,numLines));
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wmove(mainwin,selRow,selCol);
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ch = wgetch(mainwin);
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switch (ch) {
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case 7:
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case KEY_BACKSPACE:
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case 8:
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case 127:
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if (selCol > 1) {
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wmove(mainwin,selRow,--selCol);
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wdelch(mainwin);
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textCounter--;
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shiftElementsDown(text,textCounter);
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} else if (selCol == 1 && selRow > 1) {
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textCounter--;
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--selRow;
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selCol=findLastChar(mainwin,selRow,mainX)+charToNewLine(text,textCounter);
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wmove(mainwin,selRow,selCol);
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shiftElementsDown(text,textCounter);
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}
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break;
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case KEY_LEFT:
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if (selCol > 1) {
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wmove(mainwin,selRow,--selCol);
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textCounter--;
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} else if (selCol == 1 && selRow > 1) {
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textCounter--;
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--selRow;
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selCol=findLastChar(mainwin,selRow,mainX)+charToNewLine(text,textCounter);
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if (selCol==2) {
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selCol--;
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// *(int*)0=0;
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}
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wmove(mainwin,selRow,selCol);
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}
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break;
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case KEY_RIGHT:
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// if (!(isLastChar(mainwin,selRow,selCol,mainX))) {
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if (*(text+textCounter) != '\0') {
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if (*(text+textCounter) != '\n' && selCol<mainX-2) {
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wmove(mainwin,selRow,++selCol);
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} else {
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selCol=1;
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wmove(mainwin,++selRow,selCol);
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}
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textCounter++;
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// mvwprintw(mainwin,6,6,"%d",mvwinch(mainwin,selRow,selCol));
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}
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break;
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case KEY_HOME:
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textCounter-=selCol-1;
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selCol=1;
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wmove(mainwin,selRow,selCol);
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break;
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case KEY_DOWN:
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if (selCol == 1 && (*(text+textCounter+(findLastChar(mainwin,selRow,mainX)))) != '\0' && selRow<mainY-2) {
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while (*(text+textCounter) != '\n' && selCol<mainX-2){
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textCounter++;
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selCol++;
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}
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textCounter++;
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selCol=1;
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/*
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if (findLastChar(mainwin,selRow,mainX) > mainX-3) {
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textCounter--;
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}
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textCounter += (findLastChar(mainwin,selRow,mainX));
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// textCounter += (findLastCharWithArray(mainwin,stdscr,selRow,mainX,text,textCounter,numLines));
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// selCol=1;
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*/
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wmove(mainwin,++selRow,selCol);
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}
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break;
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case KEY_UP:
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if (selRow-1 > 0 && (selCol == 1 && (*(text+textCounter-(findLastChar(mainwin,selRow-1,mainX)))) != '\0')) {
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int selColOfNewLine = 500;
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newLineFound=false;
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upArrowDistance=0;
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for (int i=1;i<mainX;i++) {
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// if (*(text+textCounter+1) == '\n') {
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// newLineFound=true;
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// }
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if (i==mainX-1){
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upArrowDistance=mainX-1;
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break;
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}
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if (textCounter==i) {
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upArrowDistance=textCounter+1;
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break;
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}
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if (i == findLastChar(mainwin,selRow-1,mainX)) {
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upArrowDistance = findLastChar(mainwin,selRow-1,mainX);
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break;
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}
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if (*(text+textCounter-i) == '\n') {
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if (i<=2) {
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upArrowDistance=i;
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selColOfNewLine=i;
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} else {
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upArrowDistance=i-1;
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}
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if (newLineFound) {
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//if (findLastChar(mainwin,selRow-1,mainX) == 0) {
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// upArrowDistance=2;
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//}
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break;
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}
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newLineFound=true;
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}
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}
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textCounter-=upArrowDistance-1;
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// textCounter -= (findLastChar(mainwin,selRow-1,mainX));
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// selCol=1;
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wmove(mainwin,--selRow,selCol);
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// *(int*)0=0;
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}
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break;
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case 10:
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// wmove(mainwin,selRow+1,1);
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if (selRow < mainY-2) {
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wmove(mainwin,++selRow,1);
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shiftElementsUp(text,textCounter);
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*(text+textCounter) = '\n';
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textCounter++;
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// selCol=1;
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selCol=1;
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}
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break;
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case KEY_DC:
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// abort();
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if (!(isLastChar(mainwin,selRow,selCol,mainX))) {
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wmove(mainwin,selRow,selCol+1);
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wdelch(mainwin);
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// textCounter--;
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shiftElementsDown(text,textCounter);
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}
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break;
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// case (('r' & 0x1f)):
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// wmove(mainwin,selRow,selCol);
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// break;
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case (('s' & 0x1f)):
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// abort();
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// shortText = shortenString(text);
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if (argc > 1) {
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saveLocation = getSaveLoc(mainX,mainY,dir);
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} else {
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saveLocation = getSaveLoc(mainX,mainY,"$$$");
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}
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if (saveLocation == "$$$") {
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ch = ' ';
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wmove(mainwin,selRow,selCol);
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break;
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}
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// myFile = fopen("savedFile.txt","w");
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myFile = fopen(saveLocation,"w");
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mvwaddstr(stdscr,1,1,saveLocation);
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charArrayCounter=0;
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do {
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fputc(*(text+charArrayCounter),myFile);
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charArrayCounter++;
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// } while (charArrayCounter < (strlen(shortText)));
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} while (*(text+charArrayCounter) != '\0');
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if (*(text+charArrayCounter) != '\n') {
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fputc('\n',myFile);
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}
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// fputc('\0',myFile);
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fclose(myFile);
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// wgetch(mainwin);
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break;
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case KEY_NPAGE:
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if (selRow > 1) {
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numLines++;
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selRow--;
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wmove(mainwin,selRow,selCol);
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} else {
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if (selCol == 1) {
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numLines++;
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while (*(text+textCounter) != '\n' && selCol<mainX-2){
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textCounter++;
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selCol++;
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}
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textCounter++;
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selCol=1;
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// //textCounter += (findLastChar(mainwin,selRow,mainX));
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wmove(mainwin,selRow,selCol);
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}
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}
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break;
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case KEY_PPAGE:
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if (selRow >= mainY-2 && selCol == 1 && selRow > 1) {
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textCounter -= (findLastChar(mainwin,selRow-1,mainX));
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selRow--;
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}
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if (numLines > 0){
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selCol=1;
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wmove(mainwin,selRow,selCol);
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numLines--;
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selRow++;
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}
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// if (numLines == 0) {
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// selRow++;
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// }
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break;
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default:
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// waddch(mainwin,ch);
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mvwinsch(mainwin,selRow,selCol,ch);
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if (*(text+textCounter+1-1) != '\0') {
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shiftElementsUp(text,textCounter);
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}
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*(text + textCounter) = ch;
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textCounter++;
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if (selCol >= mainX-1) {
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selCol=2;
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selRow++;
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wmove(mainwin,selRow,selCol);
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} else {
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// selCol++;
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// /*Temporary uncomment*/
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// selCol++;
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// wmove(mainwin,selRow,selCol+1);
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wmove(mainwin,selRow,++selCol);
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}
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// mvwprintw(stdscr,1,2,"%d",*(text+textCounter-1));
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// mvwprintw(mainwin,6,6,"%d",ch);
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break;
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}
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// mvwprintw(mainwin,3,3,"%d",textCounter);
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box(mainwin,0,0);
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}
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endwin();
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return 0;
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}
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char* shortenString (char* origString) {
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int numNullChars = 0;
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char* newString = malloc((strlen(origString)+1) * (sizeof(char)));
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// for (int i=0;i<strlen(newString)+1;i++) {
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// (*newString+i) = (*origString+i);
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strncpy(newString,origString,strlen(newString)+1);
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// }
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return newString;
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}
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void shiftElementsDown(char* arr,int arrCounter){
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// SHIFTS ELEMENTS LEFT
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int lastElement = strlen(arr)-1;
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for (int i=arrCounter+1;i<strlen(arr)+10;i++){
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*(arr+i-1) = *(arr+i);
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}
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*(arr+lastElement)='\0';
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}
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void shiftElementsUp(char* arr,int arrCounter) {
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// SHIFTS ELEMENTS RIGHT
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for (int i=strlen(arr)+2;i>=arrCounter;i--) {
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*(arr+i+1) = *(arr+i);
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}
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*(arr+arrCounter) = '\0';
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}
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char* getSaveLoc(int mainX,int mainY, char* tempSaveLoc) {
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WINDOW* saveDiag = newwin(8,40,((mainY/2)-4),((mainX/2)-20));
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char* saveLoc = malloc(SAVE_LOC_SIZE * sizeof(char));
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box(saveDiag,0,0);
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refresh();
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wrefresh(saveDiag);
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mvwaddstr(saveDiag,1,1,"Save to?");
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mvwhline(saveDiag,4,2,0,36);
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wmove(saveDiag,3,2);
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int i=0;
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char ch = 65;
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raw();
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int saveY,saveX;
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// cbreak();
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if (tempSaveLoc != "$$$") {
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do {
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wmove(saveDiag,3,i+2);
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waddch(saveDiag,*(tempSaveLoc+i));
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*(saveLoc+i) = *(tempSaveLoc+i);
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i++;
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} while (i<strlen(tempSaveLoc));
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}
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do {
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ch = wgetch(saveDiag);
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if (ch == 10) {
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break;
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}
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if (ch == ('c' & 0x1f)) {
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break;
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}
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getyx(saveDiag,saveY,saveX);
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if (ch == 127) {
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if (saveX > 2) {
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wmove(saveDiag,3,i+1);
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// wdelch(saveDiag);
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waddch(saveDiag,32);
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wmove(saveDiag,3,i+1);
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*(saveLoc+i-1) = '\0';
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i--;
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}
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} else {
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wmove(saveDiag,3,i+2);
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waddch(saveDiag,ch);
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*(saveLoc+i) = ch;
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i++;
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}
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refresh();
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wrefresh(saveDiag);
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} while (ch != 10 && ch != ('c' & 0x1f));
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||||
// raw();
|
||||
wclear(saveDiag);
|
||||
refresh();
|
||||
wrefresh(saveDiag);
|
||||
// return shortenString(saveLoc);
|
||||
if (ch == ('c' & 0x1f)) {
|
||||
return "$$$";
|
||||
}
|
||||
return saveLoc;
|
||||
|
||||
|
||||
|
||||
}
|
||||
|
||||
|
||||
int findLastChar(WINDOW* mainwin,int selRow,int mainX) {
|
||||
int selCol=0;
|
||||
for (int i=mainX-2;i>=1;i--){
|
||||
if (mvwinch(mainwin,selRow,i) != 32) {
|
||||
selCol=i;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (selCol==0){
|
||||
return selCol;
|
||||
}
|
||||
|
||||
return selCol+1;
|
||||
}
|
||||
|
||||
int findLastCharWithArray(WINDOW* mainwin,WINDOW* std,int selRow,int mainX,char* text, int textCounter,int numLines) {
|
||||
int selCol=0;
|
||||
for (int i=0;i>mainX;i++){
|
||||
// if (findCharInArray(text,selRow,i+1,numLines) == mvwinch(mainwin,selRow+1,1)) {
|
||||
|
||||
mvwprintw(stdscr,3,1,"%c\n",findCharInArray(text,selRow,i+1,numLines));
|
||||
|
||||
if (findCharInArray(text,selRow,i+1,numLines) == '\n') {
|
||||
|
||||
abort();
|
||||
selCol=i;
|
||||
// *(int*)0 = 0;
|
||||
break;
|
||||
}
|
||||
}
|
||||
return selCol+1;
|
||||
}
|
||||
|
||||
|
||||
bool isLastChar(WINDOW* mainwin,int selRow,int selCol,int mainX) {
|
||||
for (int i=selCol;i<mainX-1;i++) {
|
||||
if (mvwinch(mainwin,selRow,i) != 32) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
void printFromIndex(WINDOW* mainwin,char* text,int index,int selRow,int selCol,int numLines) {
|
||||
wclear(mainwin);
|
||||
refresh();
|
||||
wrefresh(mainwin);
|
||||
int mainY,mainX;
|
||||
getmaxyx(mainwin,mainY,mainX);
|
||||
|
||||
// int index=indexToBegin;
|
||||
int selRowTemp=1;
|
||||
int selColTemp=1;
|
||||
while((*(text+index) != '\0') && (selRowTemp < mainY-1)) {
|
||||
mvwaddch(mainwin,selRowTemp,selColTemp,*(text+index));
|
||||
selColTemp++;
|
||||
if (*(text+index) == '\n') {
|
||||
selRowTemp++;
|
||||
selColTemp=1;
|
||||
}
|
||||
if (selColTemp >= mainX-1) {
|
||||
selColTemp=1;
|
||||
selRowTemp++;
|
||||
// index++;
|
||||
wmove(mainwin,selRowTemp,selColTemp);
|
||||
}
|
||||
index++;
|
||||
}
|
||||
|
||||
|
||||
// box(boxwin,0,0);
|
||||
refresh();
|
||||
// wrefresh(boxwin);
|
||||
// wmove(mainwin,selRow,selCol);
|
||||
wmove(mainwin,numLines,selCol);
|
||||
if (numLines == 0) {
|
||||
wmove(mainwin,++selRow,selCol);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
char findCharInArray(char* charArray, int selRow, int selCol, int numLines) {
|
||||
int indexToBegin=0;
|
||||
int numNewLinesFound=0;
|
||||
if (numLines > 0) {
|
||||
for (int i=0;i<strlen(charArray);i++) {
|
||||
if (numNewLinesFound==numLines) {
|
||||
indexToBegin=i;
|
||||
break;
|
||||
}
|
||||
if (*(charArray+i)=='\n') {
|
||||
numNewLinesFound++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// *(int*)0 = 0;
|
||||
|
||||
|
||||
|
||||
selRow--;
|
||||
// selCol++;
|
||||
int index=indexToBegin;
|
||||
int curRow=0;
|
||||
while(curRow < selRow) {
|
||||
index++;
|
||||
if (*(charArray+index) == '\n') {
|
||||
curRow++;
|
||||
}
|
||||
if (selRow == curRow) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
for (int i=0;i<selCol;i++){
|
||||
index++;
|
||||
}
|
||||
|
||||
// return 'a';
|
||||
|
||||
return *(charArray+index);
|
||||
|
||||
|
||||
}
|
||||
|
||||
|
||||
int charToNewLine(char* text,int textCounter) {
|
||||
int returnVal=0;
|
||||
while (*(text+textCounter) == 32 || *(text+textCounter) == '\n'){
|
||||
returnVal++;
|
||||
textCounter--;
|
||||
}
|
||||
return returnVal-1;
|
||||
|
||||
}
|
||||
@ -0,0 +1,21 @@
|
||||
#ifndef TEXTED_H_
|
||||
#define TEXTED_H_
|
||||
#include <ncurses.h>
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#define SAVE_LOC_SIZE 500
|
||||
|
||||
char* shortenString(char*);
|
||||
void shiftElementsDown(char*,int);
|
||||
void shiftElementsUp(char*,int);
|
||||
char* getSaveLoc(int,int,char*);
|
||||
int findLastChar(WINDOW*,int,int);
|
||||
int findLastCharWithArray(WINDOW*,WINDOW*,int,int,char*,int,int);
|
||||
bool isLastChar(WINDOW*,int,int,int);
|
||||
void printFromIndex(WINDOW*,char*,int,int,int,int);
|
||||
char findCharInArray(char*,int,int,int);
|
||||
int charToNewLine(char*,int);
|
||||
int run(char*,WINDOW*,int);
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue