QCursor getCursor(int cursorType) {
// assert(cursorType!=0);
QCursor cursor;
if (cursorType == ToolCursor::CURSOR_ARROW)
cursor = Qt::ArrowCursor;
else if (cursorType == ToolCursor::ForbiddenCursor)
cursor = Qt::ForbiddenCursor;
else {
const CursorData &data = getCursorData(cursorType);
cursor = QCursor(data.pixmap, data.x, data.y);
}
return cursor;
}
int main ( int argc, char* argv[] ) {
DlList_T myList;
// List buffer to keep track of inserting or appending
DlList_T listBuff;
myList = dll_create();
if( myList == 0 ) {
fprintf( stderr, "Cannot create list!\n" );
return( 1 );
}
listBuff = dll_create();
if( listBuff == 0 ) {
fprintf( stderr, "Cannot create buffer!\n" );
return( 1 );
}
// number of bytes for getline
int nbytes = 80;
// Set up a string to read user input and file
char *str = NULL;
// Set up name for saving files to
char *saveFile = NULL;
// Read in a file
// Check to make sure there's arguments of the file to open
if( argc == 2 ) {
FILE* pFile = fopen(argv[1], "r");
if( !pFile ) {
perror("open failed");
fprintf( stderr, "could not read file '%s'\n", argv[1] );
return( 1 );
} else {
// The file has been opened. Go through
// and fill the doubly linked list
while( getline(&str, (size_t *) &nbytes, pFile) ) {
// Kill the new line
killNL(str);
// Set up space
char* toAdd = (char*)malloc(
( strlen(str) + 1 ) * sizeof(char) );
// Add the previous read in line to that space
strcpy( toAdd, str );
// Add it to the list
dll_append( myList, toAdd );
//Free 'str'
free( str );
str = NULL;
}
fclose( pFile );
}
} else {
printf( "no file supplied\n" );
}
// Keep track if we should stop or not
bool running = true;
// Keep track of changes
bool buffChange = false;
// Keeps track if we're appending or inserting
bool grabText = false;
char grabMode = 'a';
// Keeps track of the cursor movement
void* lastData = NULL;
while( running ) {
// Read in the next line
getline(&str, (size_t *) &nbytes, stdin);
// Kill new line
killNL(str);
// We're either appending or inserting
if( grabText ) {
if( strlen( str ) == 1 && str[0] == '.' ) {
// A single period was entered to stop the adding
// Set grabText to false
grabText = false;
// If the mode was set to append
if( grabMode == 'a' ) {
// We go through and pop all the elements
// off the buffer and append them to the list
int index = 0;
void* data = dll_pop( listBuff, 0 );
while( data != NULL ) {
dll_append( myList, data );
index++;
data = dll_pop( listBuff, 0 );
}
} else if ( grabMode == 'i' ) {
// We go through and pop all the elements
// off the buffer and insert them to the list
int index = 0;
// Set the insert index as the current
// pointer's index
int insertIndex = getCursorIndex( myList );
void* data = dll_pop( listBuff, 0 );
while( data != NULL ) {
dll_insert_at( myList, insertIndex, data );
index++;
insertIndex++;
data = dll_pop( listBuff, 0 );
}
}
} else {
// Set up space
char* toAdd = (char*)malloc(
( strlen(str) + 1 ) * sizeof(char) );
// Add the previous read in line to that space
strcpy( toAdd, str );
// Add it to the list
dll_append( listBuff, toAdd );
}
} else if( str[0] == 'a' ) {
grabText = true;
grabMode = 'a';
buffChange = true;
// Current line
} else if( str[0] == '.' ) {
// Print the index of the current line
if( str[1] == '=' ) {
printf( "%d\n", getCursorIndex( myList ) );
// Print the current line
} else {
printf( "%s\n", (char*)getCursorData( myList ) );
}
// Advance cursor to the next line
// String length of 1 means they hit enter
} else if( strlen(str) == 0 || str[0] == '+' ) {
// Try to advance the cursor
void* data = dll_next( myList );
// If the cursor didn't advance, notify the user
if( data == lastData ){
printf("?\n");
// Otherwise the cursor advanced, print the line
} else {
lastData = data;
printf( "%s\n", (char*)data );
}
// Advance the cursor to the previous line
} else if( str[0] == '-' ) {
// Try to advance the cursor
void* data = dll_prev( myList );
// If the cursor didn't advance, notify the user
if( data == lastData ){
printf("?\n");
// Otherwise the cursor advanced, print the line
} else {
lastData = data;
printf( "%s\n", (char*)data );
}
// Delete line
} else if( str[0] == 'd' ) {
if( dll_has_next( myList ) ){
int index = getCursorIndex( myList );
void* data = dll_pop( myList, index );
free( data );
buffChange = true;
}
} else if( str[0] == 'i' ) {
grabText = true;
grabMode = 'i';
buffChange = true;
// Last element
} else if( str[0] == '$' ) {
// For both "$=" and "$" it prints a "?" upon
// an empty list
int size = dll_size( myList );
if( size == 0 ) {
printf( "?\n" );
} else {
// If the command was "$=" just print
// the possition of the last element
if( str[1] == '=' ) {
printf( "%d\n", size );
// Otherwise move to the last position
// and print the last element
} else {
dll_move_to( myList, size - 1 );
void* data = dll_get( myList, size - 1 );
printf( "%s\n", (char*)data );
}
}
// Print
} else if( str[0] == 'p' ) {
printList( myList );
// Save
} else if( str[0] == 'w' ) {
char grab[(strlen(str) + 1)];
// Check if a file name has beens pecified
sscanf(str, "%*s %s", grab);
// If the length is greater than '1' we set
// it as the last acceptable saveFile
if( strlen(grab) > 0 ) {
if( saveFile != NULL ) {
free( saveFile );
}
saveFile = (char*)malloc(
( strlen(str) + 1 ) * sizeof(char) );
strcpy( saveFile, grab );
}
// Check if a quit flag has been given
bool quit = (str[1] == 'q');
if( saveFile == NULL || strlen(saveFile) <= 0 ) {
// We don't have an acceptable file name to check
continue;
}
// Open file to be saved
FILE* pFile = fopen(saveFile, "w");
if( !pFile ) {
perror("open failed: ");
} else {
printf( "file name: '%s'\n", saveFile );
// Go through each node of the doulby linked list
int index = 0;
void* data = dll_get( myList, index );
while( data != NULL ) {
// Write to file
fputs((char*)data, pFile);
fputs("\n", pFile);
index++;
data = dll_get( myList, index );
}
// Close
fclose( pFile );
// If we want to quit afterwards
if( quit ) {
running = false;
printf("\nBye\n");
}
// reset the buffer flag
buffChange = false;
}
// Soft quit
} else if ( str[0] == 'q' ) {
// If the buffer hasn't changed stop the program
if( !buffChange ) {
running = false;
printf( "\nBye\n" );
// Otherwise warn that there's been changes
} else {
printf( "? buffer dirty.\n" );
}
// Hard quit
} else if ( str[0] == 'Q' ) {
running = false;
printf( "\nBye\n" );
} else {
// Check if a number
char* end;
int checkNum = strtol( str, &end, 10 );
// If the conversion did not encounter a string
// We know the number is good
if( !*end ) {
// If we can move to the requested index
if( dll_move_to( myList, checkNum - 1 ) ) {
// Print that index
printf( "%s\n", (char*)getCursorData( myList ) );
} else {
printf( "?\n" );
}
}
}
// Free 'str'
free( str );
// Set 'str' to NULL
str = NULL;
}
// Destroy our list
dll_destroy( myList );
// Destroy the buffer
dll_destroy( listBuff );
}
