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Enhanced word wrapping.

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Started separating code into functions for future move to multiple key bindings.
Greatly reduced the amount of debug logging produced by fsedit
This commit is contained in:
Ken Bowley
2001-10-27 17:21:27 +00:00
parent 2e5e3724d5
commit 1489c61324
3 changed files with 216 additions and 148 deletions
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360
mbsebbs/fsedit.c
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@@ -1,8 +1,9 @@
/*****************************************************************************
* $Id
*
* File ..................: bbs/fsedit.c
* File ..................: mbsebbs/fsedit.c
* Purpose ...............: FullScreen Message editor.
* Last modification date : 20-Oct-2001
* Last modification date : 27-Oct-2001
*
*****************************************************************************
* Copyright (C) 1997-2001
@@ -177,8 +178,8 @@ void Refresh(void)
void Debug(void)
{
Syslog('b', "FSEDIT: Col=%d Row=%d TopVisible=%d Lines=%d CurRow=%d Len=%d",
Col, Row, TopVisible, Line, Row+TopVisible-1, strlen(Message[Row+TopVisible-1]));
/* Syslog('b', "FSEDIT: Col=%d Row=%d TopVisible=%d Lines=%d CurRow=%d Len=%d", */
/* Col, Row, TopVisible, Line, Row+TopVisible-1, strlen(Message[Row+TopVisible-1])); */
}
@@ -243,6 +244,144 @@ void ScrollDown()
/* Debug(); */
}
void FsMove(unsigned char Direction)
{
switch (Direction) {
case KEY_RIGHT:
Syslog('b', "FSEDIT: Cursor Right");
Debug();
/*
* FIXME: FsMove KEY_RIGHT
* Handle long lines better.
* For now, we will just refuse to go past col 80
*/
if ((Col <= strlen(Message[CurRow])) && (Col < 80)){
Col++;
Setcursor();
} else if (Row < (Line - TopVisible +1)) {
Row++;
Col = 1;
if (Row > (exitinfo.iScreenLen -1)) ScrollDown();
Refresh();
} else
Beep();
break;
case KEY_LEFT:
Syslog('b', "FSEDIT: Cursor left");
Debug();
if (Col > 1) {
Col--;
Setcursor();
} else if (CurRow > 1) {
Col = strlen(Message[CurRow-1]) +1;
/*
* FIXME: FsMove KEY_LEFT
* Handle long lines better.
* For now, we will just refuse to go past col 80
*/
if (Col > 80) Col = 80;
if (Row == 1) ScrollUp();
Row--;
Setcursor();
} else
Beep();
break;
case KEY_UP:
Syslog('b', "FSEDIT: Cursor up");
Debug();
if (CurRow > 1) {
Row--;
if (Col > strlen(Message[CurRow-1]) + 1)
Col = strlen(Message[CurRow-1]) +1;
if ((Row < 1) && (CurRow != Row))
ScrollUp();
else
Setcursor();
} else
Beep();
break;
case KEY_DOWN:
Syslog('b', "FSEDIT: Cursor down");
Debug();
if (Row < (Line - TopVisible + 1)) {
Row++;
if (Col > strlen(Message[CurRow+1]) + 1)
Col = strlen(Message[CurRow+1]) + 1;
if (Row <= (exitinfo.iScreenLen -1))
Setcursor();
else
ScrollDown();
} else
Beep();
break;
}
}
int FsWordWrap()
{
int WCol, i = 0;
unsigned char tmpLine[80];
tmpLine[0] = '\0';
/*
* FIXME: FsWordWrap
* The word wrap still fails the BIG WORD test
* (BIG WORD = continuous string of characters that spans multiple lines without
* any spaces)
*/
Syslog('b', "FSEDIT: Word Wrap");
WCol = 79;
while (Message[CurRow][WCol] != ' ' && WCol > 0)
WCol--;
if ((WCol > 0) && (WCol < 80)) WCol++; else WCol=80;
if (WCol <= strlen(Message[CurRow])) {
/*
* If WCol = 80 (no spaces in line) be sure to grab character 79.
* Otherwise, drop it, because it's a space.
*/
if ((WCol == 80) || (WCol-1 == Col))
sprintf(tmpLine, "%s%c", tmpLine, Message[CurRow][79]);
/*
* Grab all characters from WCol to end of line.
*/
for (i = WCol; i < strlen(Message[CurRow]); i++) {
sprintf(tmpLine, "%s%c", tmpLine, Message[CurRow][i]);
}
/*
* Truncate current row.
*/
Message[CurRow][WCol-1] = '\0';
/*
* If the wrapped section and the next row will not fit on one line,
* shift all lines down one and use the wrapped section to create a new line.
*
* Otherwise, slap the wrapped section on the front of the next row with
* a space if needed.
*/
if ((strlen(tmpLine) + strlen(Message[CurRow+1])) > 79) {
for (i = Line; i > CurRow; i--)
sprintf(Message[i+1], "%s", Message[i]);
sprintf(Message[CurRow+1], "%s", tmpLine);
Line++;
WCol = strlen(tmpLine) + 1;
} else {
if ((WCol == 80) && (Col >= WCol))
WCol = strlen(tmpLine)+1;
else {
if (tmpLine[strlen(tmpLine)] != ' ')
sprintf(tmpLine, "%s ", tmpLine);
WCol = strlen(tmpLine);
}
sprintf(Message[CurRow+1], "%s", strcat(tmpLine, Message[CurRow+1]));
}
}
return WCol;
}
int Fs_Edit()
{
@@ -319,111 +458,57 @@ int Fs_Edit()
break;
case ('Y' - 64): /* Erase line, scroll up */
Syslog('b', "FSEDIT: Erase line");
Debug();
if (Line == CurRow) {
/* Erasing last line */
if ((Line > 1) || (strlen(Message[CurRow]) > 0)) {
Message[CurRow][0] = '\0';
if (Line > 1) {
Line--;
if (Row == 1) ScrollUp();
Row--;
}
if (Col > strlen(Message[CurRow]))
Col = strlen(Message[CurRow]);
Refresh();
/* Debug(); */
Changed = TRUE;
} else
Beep();
} else {
/* Erasing line in the middle */
for (i = CurRow; i < Line; i++) {
sprintf(Message[i], "%s", Message[i+1]);
Syslog('b', "FSEDIT: Erase line");
Debug();
if (Line == CurRow) {
/* Erasing last line */
if ((Line > 1) || (strlen(Message[CurRow]) > 0)) {
Message[CurRow][0] = '\0';
if (Line > 1) {
Line--;
if (Row == 1) ScrollUp();
Row--;
}
Message[i+1][0] = '\0';
Line--;
if (Col > strlen(Message[CurRow]) + 1)
Col = strlen(Message[CurRow]) + 1;
if (Col > strlen(Message[CurRow]))
Col = strlen(Message[CurRow]);
Refresh();
/* Debug(); */
Changed = TRUE;
} else
Beep();
} else {
/* Erasing line in the middle */
for (i = CurRow; i < Line; i++) {
sprintf(Message[i], "%s", Message[i+1]);
}
break;
Message[i+1][0] = '\0';
Line--;
if (Col > strlen(Message[CurRow]) + 1)
Col = strlen(Message[CurRow]) + 1;
Refresh();
/* Debug(); */
Changed = TRUE;
}
break;
case KEY_UP:
case ('E' - 64):
Syslog('b', "FSEDIT: Cursor up");
Debug();
if (Row > 1) {
Row--;
if (Col > strlen(Message[CurRow-1]) + 1)
Col = strlen(Message[CurRow-1]) + 1;
Setcursor();
/* Debug(); */
} else {
ScrollUp();
}
FsMove(KEY_UP);
break;
case KEY_DOWN:
case ('X' - 64):
Syslog('b', "FSEDIT: Cursor down");
Debug();
if (Row < (Line - TopVisible + 1)) {
if (Row < (exitinfo.iScreenLen -1)) {
Row++;
if (Col > strlen(Message[CurRow+1]) + 1)
Col = strlen(Message[CurRow+1]) + 1;
Setcursor();
/* Debug(); */
} else {
ScrollDown();
}
} else
Beep();
FsMove(KEY_DOWN);
break;
case KEY_LEFT:
case ('S' - 64):
Syslog('b', "FSEDIT: Cursor left");
Debug();
if (Col > 1) {
Col--;
Setcursor();
/* Debug(); */
} else if (CurRow > 1) {
Col = strlen(Message[CurRow-1]) +1;
if (Row == 1) ScrollUp();
Row--;
Setcursor();
/* Debug(); */
} else if (TopVisible > 12) {
Refresh();
/* Debug(); */
} else
Beep();
FsMove(KEY_LEFT);
break;
case KEY_RIGHT:
case ('D' - 64):
Syslog('b', "FSEDIT: Cursor Right");
Debug();
if (Col <= strlen(Message[CurRow])) {
Col++;
Setcursor();
/* Debug(); */
} else if (Row < (Line - TopVisible +1)) {
Row++;
Col = 1;
if (Row > (exitinfo.iScreenLen -1)) ScrollDown();
Refresh();
/* Debug(); */
} else
Beep();
FsMove(KEY_RIGHT);
break;
case KEY_DEL:
@@ -458,7 +543,7 @@ int Fs_Edit()
* Trap the extra code so it isn't
* inserted in the text
*/
ch = Readkey();
if (ch == KEY_DEL) Readkey();
break;
case KEY_BACKSPACE:
@@ -485,10 +570,10 @@ int Fs_Edit()
Changed = TRUE;
} else {
i = strlen(Message[CurRow-1]) + strlen(Message[CurRow]);
Syslog('b', "FSEDIT: BS lines are too big! %d + %d = %d",
strlen(Message[CurRow]),
strlen(Message[CurRow-1]),
i);
/* Syslog('b', "FSEDIT: BS lines are too big! %d + %d = %d", */
/* strlen(Message[CurRow]), */
/* strlen(Message[CurRow-1]), */
/* i); */
Beep();
}
} else {
@@ -526,13 +611,12 @@ int Fs_Edit()
* Trap the extra code so it isn't
* inserted in the text
*/
ch = Readkey();
if (ch == KEY_INS) Readkey();
break;
case ('L' - 64): /* Refresh screen */
Syslog('b', "FSEDIT: Refresh()");
Refresh();
Debug();
break;
case ('R' - 64): /* Read from file */
@@ -623,8 +707,8 @@ int Fs_Edit()
Debug();
clear();
fflush(stdout);
for (i = 1; i <= Line; i++)
Syslog('b', "%3d \"%s\"", i, Message[i]);
/* for (i = 1; i <= Line; i++) */
/* Syslog('b', "%3d \"%s\"", i, Message[i]); */
if (ch == 'S' && Changed) {
Syslog('+', "FSEDIT: Message saved");
return TRUE;
@@ -651,74 +735,54 @@ int Fs_Edit()
/*
* Normal printable characters
*/
/* Debug(); */
if (Col == strlen(Message[CurRow]) + 1) {
/* Syslog('b', "FSEDIT: Append character to end"); */
/*
* Append to line
*/
if (Col < 79) {
sprintf(Message[CurRow], "%s%c", Message[CurRow], ch);
if (strlen(Message[CurRow]) > 79){
Col = FsWordWrap();
Row++;
Refresh();
} else {
Col++;
sprintf(Message[CurRow], "%s%c", Message[CurRow], ch);
printf("%c", ch);
fflush(stdout);
Changed = TRUE;
} else {
/*
* Do simple word wrap
*/
for (i = Line; i > CurRow; i--) {
/*
* Shift lines down by one
*/
sprintf(Message[i+1], "%s", Message[i]);
}
/*
* Clear row for wrapped words
*/
Message[CurRow+1][0] = '\0';
Col = 74;
while (Message[CurRow][Col] != ' ' && i != 0)
Col--;
Col++;
if (Col <= strlen(Message[CurRow])) {
/*
* Move end of line to new row
*/
for (i = Col; i <= strlen(Message[CurRow]); i++) {
sprintf(Message[CurRow+1], "%s%c", Message[CurRow+1], Message[CurRow][i]);
}
Message[CurRow][Col-1] = '\0';
}
sprintf(Message[CurRow+1], "%s%c", Message[CurRow+1], ch);
Line++;
Row++;
Col = strlen(Message[CurRow+1])+1;
Refresh();
/* Debug(); */
Changed = TRUE;
}
Changed = TRUE;
} else {
/*
* Insert or overwrite
*/
Syslog('b', "FSEDIT: %s in line", InsMode ? "Insert" : "Overwrite");
/* Syslog('b', "FSEDIT: %s in line", */
/* InsMode ? "Insert" : "Overwrite"); */
if (InsMode) {
if (strlen(Message[CurRow]) < 80) {
for (i = strlen(Message[CurRow]); i >= (Col-1); i--) {
/*
* Shift characters right
*/
Message[CurRow][i+1] = Message[CurRow][i];
for (i = strlen(Message[CurRow]); i >= (Col-1); i--) {
/*
* Shift characters right
*/
Message[CurRow][i+1] = Message[CurRow][i];
}
Message[CurRow][Col-1] = ch;
Col++;
if (strlen(Message[CurRow]) > 80) {
i = FsWordWrap();
if (Col > strlen(Message[CurRow])+1) {
Col = Col - strlen(Message[CurRow]);
if (Col > 1) Col--;
Row++;
}
Message[CurRow][Col-1] = ch;
Col++;
if (Row > (exitinfo.iScreenLen -1))
ScrollDown();
else
Refresh();
} else {
locate(Row + 1, 1);
printf(Message[CurRow]);
Setcursor();
Changed = TRUE;
} else {
Beep();
}
Changed = TRUE;
} else {
Message[CurRow][Col-1] = ch;
printf("%c", ch);

2
mbsebbs/fsedit.h
View File

@@ -43,6 +43,8 @@ void Debug(void);
void GetstrLC(char *, int);
void ScrollUp(void);
void ScrollDown(void);
void FsMove(unsigned char);
int FsWordWrap(void);
#endif