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First attempt at implementing backspace at beginning of line

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This commit is contained in:
Andrew Pamment 2017-09-10 20:09:45 +10:00
parent b37a2eea9a
commit bcc4856ded
1 changed files with 71 additions and 13 deletions
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84
utils/magiedit/main.c
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@ -165,18 +165,7 @@ char *message_editor() {
od_set_cursor(position_y - top_of_screen + 5, position_x + 1); od_set_cursor(position_y - top_of_screen + 5, position_x + 1);
} }
} else if (ch.EventType == EVENT_CHARACTER) { } else if (ch.EventType == EVENT_CHARACTER) {
/* if (stage == 1 && ch.chKeyPress == '[') { if (ch.chKeyPress == '\r' || (strlen(line) >= 73 && ch.chKeyPress > 31 && ch.chKeyPress != 127)) {
stage = 2;
continue;
} else if (stage != 0) {
stage = 0;
continue;
}
if (ch.chKeyPress == 27) {
// got an escape that i shouldnt have
stage = 1;
} else */if (ch.chKeyPress == '\r' || (strlen(line) >= 73 && ch.chKeyPress > 31 && ch.chKeyPress != 127)) {
if (strlen(line) >= 73 && ch.chKeyPress != '\r') { if (strlen(line) >= 73 && ch.chKeyPress != '\r') {
if (position_x == strlen(line)) { if (position_x == strlen(line)) {
strncat(line, &ch.chKeyPress, 1); strncat(line, &ch.chKeyPress, 1);
@ -349,8 +338,77 @@ char *message_editor() {
od_set_cursor(position_y - top_of_screen + 5, position_x + 1); od_set_cursor(position_y - top_of_screen + 5, position_x + 1);
} else { } else {
if (ch.chKeyPress == '\b') { if (ch.chKeyPress == '\b') {
if (position_x == 0) { if (position_x == 0 && position_y > 0) {
// TODO // TODO
if (strlen(line) == 0) {
// delete line move cursor to end of previous line
if (position_y < body_line_count) {
strcpy(line, body_lines[position_y - 1]);
free(body_lines[position_y - 1]);
for (i=position_y - 1;i<body_line_count-1;i++) {
body_lines[i] = body_lines[i+1];
}
body_line_count--;
if (body_line_count == 0) {
free(body_lines);
} else {
body_lines = (char **)realloc(body_lines, sizeof(char *) * (body_line_count));
}
position_y--;
position_x = strlen(line) - 1;
} else {
memcpy(line, body_lines[body_line_count -1], 81);
free(body_lines[body_line_count - 1]);
body_line_count--;
if (body_line_count == 0) {
free(body_lines);
} else {
body_lines = (char **)realloc(body_lines, sizeof(char *) * (body_line_count));
}
position_y--;
position_x = strlen(line) - 1;
}
} else {
// check if current line fits
if (73 - strlen(body_lines[position_y - 1]) > strlen(line)) {
// it fits, move it up to the previous line
j = strlen(body_lines[position_y - 1]);
strcpy(line_cpy, body_lines[position_y - 1]);
strcat(line_cpy, line);
strcpy(line, line_cpy);
free(body_lines[position_y - 1]);
for (i=position_y - 1;i<body_line_count-1;i++) {
body_lines[i] = body_lines[i+1];
}
body_line_count--;
if (body_line_count == 0) {
free(body_lines);
} else {
body_lines = (char **)realloc(body_lines, sizeof(char *) * (body_line_count));
}
position_y--;
position_x = j - 1;
} else {
// it doesn't fit move cursor to end of previous line
strcpy(line_cpy, body_lines[position_y - 1]);
free(body_lines[position_y - 1]);
body_lines[position_y - 1] = strdup(line);
strcpy(line, line_cpy);
position_y--;
position_x = strlen(line);
}
}
redraw = 1;
if (position_y < top_of_screen) {
top_of_screen--;
}
} else { } else {
if (position_x >= strlen(line)) { if (position_x >= strlen(line)) {
strncpy(line_cpy, line, strlen(line) - 1); strncpy(line_cpy, line, strlen(line) - 1);