void
hex_document_set_data(HexDocument *doc, guint offset, guint len,
guint rep_len, guchar *data, gboolean undoable)
{
guint i;
guchar *ptr;
static HexChangeData change_data;
if(offset <= doc->file_size) {
if(doc->file_size - offset < rep_len)
rep_len -= doc->file_size - offset;
doc->changed = TRUE;
change_data.v_string = g_realloc(change_data.v_string, rep_len);
change_data.start = offset;
change_data.end = change_data.start + len - 1;
change_data.rep_len = rep_len;
change_data.type = HEX_CHANGE_STRING;
change_data.lower_nibble = FALSE;
i = 0;
ptr = &doc->buffer[offset];
if(ptr >= doc->gap_pos)
ptr += doc->gap_size;
while(offset + i < doc->file_size && i < rep_len) {
if(ptr >= doc->gap_pos && ptr < doc->gap_pos + doc->gap_size)
ptr += doc->gap_size;
change_data.v_string[i] = *ptr++;
i++;
}
if(rep_len == len) {
if(doc->buffer + offset >= doc->gap_pos)
offset += doc->gap_size;
}
else {
if(rep_len > len) {
move_gap_to(doc, offset + rep_len, 1);
}
else if(rep_len < len) {
move_gap_to(doc, offset + rep_len, len - rep_len);
}
doc->gap_pos -= (gint)rep_len - (gint)len;
doc->gap_size += (gint)rep_len - (gint)len;
doc->file_size += (gint)len - (gint)rep_len;
}
ptr = &doc->buffer[offset];
i = 0;
while(offset + i < doc->buffer_size && i < len) {
*ptr++ = *data++;
i++;
}
hex_document_changed(doc, &change_data, undoable);
}
}
void
hex_document_set_byte(HexDocument *doc, guchar val, guint offset,
gboolean insert, gboolean undoable)
{
static HexChangeData change_data;
if(offset <= doc->file_size)
{
if(!insert && offset == doc->file_size)
return;
doc->changed = TRUE;
change_data.start = offset;
change_data.end = offset;
change_data.rep_len = (insert?0:1);
change_data.v_string = NULL;
change_data.type = HEX_CHANGE_BYTE;
change_data.lower_nibble = FALSE;
change_data.insert = insert;
if(insert)
{
move_gap_to(doc, offset, 1);
doc->gap_size--;
doc->gap_pos++;
doc->file_size++;
}
else if(doc->buffer + offset >= doc->gap_pos)
offset += doc->gap_size;
change_data.v_byte = doc->buffer[offset];
doc->buffer[offset] = val;
hex_document_changed(doc, &change_data, undoable);
}
}
void
hex_document_set_nibble(HexDocument *doc, guchar val, guint offset,
gboolean lower_nibble, gboolean insert,
gboolean undoable)
{
static HexChangeData change_data;
if(offset <= doc->file_size)
{
if(!insert && offset == doc->file_size)
return;
doc->changed = TRUE;
change_data.start = offset;
change_data.end = offset;
change_data.v_string = NULL;
change_data.type = HEX_CHANGE_BYTE;
change_data.lower_nibble = lower_nibble;
change_data.insert = insert;
if(!lower_nibble && insert)
{
move_gap_to(doc, offset, 1);
doc->gap_size--;
doc->gap_pos++;
doc->file_size++;
change_data.rep_len = 0;
if(offset == doc->file_size)
doc->buffer[offset] = 0;
}
else
{
if(doc->buffer + offset >= doc->gap_pos)
offset += doc->gap_size;
change_data.rep_len = 1;
}
change_data.v_byte = doc->buffer[offset];
doc->buffer[offset] = (doc->buffer[offset] & (lower_nibble?0xF0:0x0F)) | (lower_nibble?val:(val << 4));
hex_document_changed(doc, &change_data, undoable);
}
}
