static void WCEL_InsertString(WCEL_Context* ctx, const WCHAR* str)
{
size_t len = lstrlenW(str), updtlen;
if (!len) return;
if (ctx->insert)
{
if (!WCEL_Grow(ctx, len)) return;
if (ctx->len > ctx->ofs)
memmove(&ctx->line[ctx->ofs + len], &ctx->line[ctx->ofs], (ctx->len - ctx->ofs) * sizeof(WCHAR));
ctx->len += len;
updtlen = ctx->len - ctx->ofs;
}
else
{
if (ctx->ofs + len > ctx->len)
{
if (!WCEL_Grow(ctx, (ctx->ofs + len) - ctx->len)) return;
ctx->len = ctx->ofs + len;
}
updtlen = len;
}
memcpy(&ctx->line[ctx->ofs], str, len * sizeof(WCHAR));
ctx->line[ctx->len] = 0;
WCEL_Update(ctx, ctx->ofs, updtlen);
ctx->ofs += len;
}
static void WCEL_Redraw(WCEL_Context* ctx)
{
COORD c = WCEL_GetCoord(ctx, ctx->len);
CHAR_INFO ci;
WCEL_Update(ctx, 0, ctx->len);
ci.Char.UnicodeChar = ' ';
ci.Attributes = ctx->csbi.wAttributes;
CONSOLE_FillLineUniform(ctx->hConOut, c.X, c.Y, ctx->csbi.dwSize.X - c.X, &ci);
}
static void WCEL_UpperCaseWord(WCEL_Context* ctx)
{
unsigned int new_ofs = WCEL_GetRightWordTransition(ctx, ctx->ofs);
if (new_ofs != ctx->ofs)
{
unsigned int i;
for (i = ctx->ofs; i <= new_ofs; i++)
ctx->line[i] = toupperW(ctx->line[i]);
WCEL_Update(ctx, ctx->ofs, new_ofs - ctx->ofs + 1);
ctx->ofs = new_ofs;
}
}
static void WCEL_TransposeChar(WCEL_Context* ctx)
{
WCHAR c;
if (!ctx->ofs || ctx->ofs == ctx->len) return;
c = ctx->line[ctx->ofs];
ctx->line[ctx->ofs] = ctx->line[ctx->ofs - 1];
ctx->line[ctx->ofs - 1] = c;
WCEL_Update(ctx, ctx->ofs - 1, 2);
ctx->ofs++;
}
static void WCEL_TransposeWords(WCEL_Context* ctx)
{
unsigned int left_ofs = WCEL_GetLeftWordTransition(ctx, ctx->ofs),
right_ofs = WCEL_GetRightWordTransition(ctx, ctx->ofs);
if (left_ofs < ctx->ofs && right_ofs > ctx->ofs)
{
unsigned len_r = right_ofs - ctx->ofs;
unsigned len_l = ctx->ofs - left_ofs;
char* tmp = HeapAlloc(GetProcessHeap(), 0, len_r * sizeof(WCHAR));
if (!tmp) return;
memcpy(tmp, &ctx->line[ctx->ofs], len_r * sizeof(WCHAR));
memmove(&ctx->line[left_ofs + len_r], &ctx->line[left_ofs], len_l * sizeof(WCHAR));
memcpy(&ctx->line[left_ofs], tmp, len_r * sizeof(WCHAR));
HeapFree(GetProcessHeap(), 0, tmp);
WCEL_Update(ctx, left_ofs, len_l + len_r);
ctx->ofs = right_ofs;
}
}
static void WCEL_DeleteString(WCEL_Context* ctx, int beg, int end)
{
unsigned str_len = end - beg;
if (end < ctx->len)
memmove(&ctx->line[beg], &ctx->line[end], (ctx->len - end) * sizeof(WCHAR));
/* we need to clean from ctx->len - str_len to ctx->len */
if (ctx->shall_echo)
{
COORD cbeg = WCEL_GetCoord(ctx, ctx->len - str_len);
COORD cend = WCEL_GetCoord(ctx, ctx->len);
CHAR_INFO ci;
ci.Char.UnicodeChar = ' ';
ci.Attributes = ctx->csbi.wAttributes;
if (cbeg.Y == cend.Y)
{
/* partial erase of sole line */
CONSOLE_FillLineUniform(ctx->hConOut, cbeg.X, cbeg.Y,
cend.X - cbeg.X, &ci);
}
else
{
int i;
/* erase til eol on first line */
CONSOLE_FillLineUniform(ctx->hConOut, cbeg.X, cbeg.Y,
ctx->csbi.dwSize.X - cbeg.X, &ci);
/* completely erase all the others (full lines) */
for (i = cbeg.Y + 1; i < cend.Y; i++)
CONSOLE_FillLineUniform(ctx->hConOut, 0, i, ctx->csbi.dwSize.X, &ci);
/* erase from beginning of line until last pos on last line */
CONSOLE_FillLineUniform(ctx->hConOut, 0, cend.Y, cend.X, &ci);
}
}
ctx->len -= str_len;
WCEL_Update(ctx, 0, ctx->len);
ctx->line[ctx->len] = 0;
}