SMALL_RECT UpdateRect;
SHORT CursorStartX, CursorStartY;
UINT ScrolledLines;
- BOOL bCJK = Console->IsCJK;
+ BOOLEAN bFullwidth;
+ BOOLEAN bCJK = Console->IsCJK;
+
+ /* If nothing to write, bail out now */
+ if (Length == 0)
+ return STATUS_SUCCESS;
CursorStartX = Buff->CursorPosition.X;
CursorStartY = Buff->CursorPosition.Y;
UpdateRect.Left = Buff->ScreenBufferSize.X;
- UpdateRect.Top = Buff->CursorPosition.Y;
- UpdateRect.Right = -1;
+ UpdateRect.Top = Buff->CursorPosition.Y;
+ UpdateRect.Right = -1;
UpdateRect.Bottom = Buff->CursorPosition.Y;
ScrolledLines = 0;
if (Buffer[i] == L'\r')
{
Buff->CursorPosition.X = 0;
- UpdateRect.Left = min(UpdateRect.Left, Buff->CursorPosition.X);
+ CursorStartX = Buff->CursorPosition.X;
+ UpdateRect.Left = min(UpdateRect.Left , Buff->CursorPosition.X);
UpdateRect.Right = max(UpdateRect.Right, Buff->CursorPosition.X);
continue;
}
/* --- LF --- */
else if (Buffer[i] == L'\n')
{
- Buff->CursorPosition.X = 0;
+ Buff->CursorPosition.X = 0; // TODO: Make this behaviour optional!
+ CursorStartX = Buff->CursorPosition.X;
ConioNextLine(Buff, &UpdateRect, &ScrolledLines);
continue;
}
/* --- BS --- */
else if (Buffer[i] == L'\b')
{
- /* Only handle BS if we're not on the first pos of the first line */
- if (0 != Buff->CursorPosition.X || 0 != Buff->CursorPosition.Y)
+ /* Only handle BS if we are not on the first position of the first line */
+ if (Buff->CursorPosition.X == 0 && Buff->CursorPosition.Y == 0)
+ continue;
+
+ if (Buff->CursorPosition.X == 0)
+ {
+ /* Slide virtual position up */
+ Buff->CursorPosition.X = Buff->ScreenBufferSize.X - 1;
+ Buff->CursorPosition.Y--;
+ // TODO? : Update CursorStartY = Buff->CursorPosition.Y;
+ UpdateRect.Top = min(UpdateRect.Top, Buff->CursorPosition.Y);
+ }
+ else
{
- if (0 == Buff->CursorPosition.X)
+ Buff->CursorPosition.X--;
+ }
+ Ptr = ConioCoordToPointer(Buff, Buff->CursorPosition.X, Buff->CursorPosition.Y);
+
+ if (Ptr->Attributes & COMMON_LVB_LEADING_BYTE)
+ {
+ /*
+ * The cursor just moved on the leading byte of the same
+ * current character. We should go one position before to
+ * go to the actual previous character to erase.
+ */
+
+ /* Only handle BS if we are not on the first position of the first line */
+ if (Buff->CursorPosition.X == 0 && Buff->CursorPosition.Y == 0)
+ continue;
+
+ if (Buff->CursorPosition.X == 0)
{
- /* slide virtual position up */
+ /* Slide virtual position up */
Buff->CursorPosition.X = Buff->ScreenBufferSize.X - 1;
Buff->CursorPosition.Y--;
+ // TODO? : Update CursorStartY = Buff->CursorPosition.Y;
UpdateRect.Top = min(UpdateRect.Top, Buff->CursorPosition.Y);
}
else
Buff->CursorPosition.X--;
}
Ptr = ConioCoordToPointer(Buff, Buff->CursorPosition.X, Buff->CursorPosition.Y);
- Ptr->Char.UnicodeChar = L' ';
+ }
- if (Ptr->Attributes & COMMON_LVB_TRAILING_BYTE)
- {
- /* Delete a full-width character */
- Ptr->Attributes = Buff->ScreenDefaultAttrib;
- if (Buff->CursorPosition.X > 0)
- Buff->CursorPosition.X--;
- Ptr = ConioCoordToPointer(Buff, Buff->CursorPosition.X, Buff->CursorPosition.Y);
- Ptr->Char.UnicodeChar = L' ';
- }
+ if (Ptr->Attributes & COMMON_LVB_TRAILING_BYTE)
+ {
+ /* The cursor is on the trailing byte of a full-width character */
- Ptr->Attributes = Buff->ScreenDefaultAttrib;
- UpdateRect.Left = min(UpdateRect.Left, Buff->CursorPosition.X);
- UpdateRect.Right = max(UpdateRect.Right, Buff->CursorPosition.X);
+ /* Delete its trailing byte... */
+ Ptr->Char.UnicodeChar = L' ';
+ if (Attrib)
+ Ptr->Attributes = Buff->ScreenDefaultAttrib;
+ Ptr->Attributes &= ~COMMON_LVB_SBCSDBCS;
+
+ if (Buff->CursorPosition.X > 0)
+ Buff->CursorPosition.X--;
+ /* ... and now its leading byte */
+ Ptr = ConioCoordToPointer(Buff, Buff->CursorPosition.X, Buff->CursorPosition.Y);
}
+
+ Ptr->Char.UnicodeChar = L' ';
+ if (Attrib)
+ Ptr->Attributes = Buff->ScreenDefaultAttrib;
+ Ptr->Attributes &= ~COMMON_LVB_SBCSDBCS;
+
+ UpdateRect.Left = min(UpdateRect.Left , Buff->CursorPosition.X);
+ UpdateRect.Right = max(UpdateRect.Right, Buff->CursorPosition.X);
continue;
}
/* --- TAB --- */
{
UINT EndX;
+ Ptr = ConioCoordToPointer(Buff, Buff->CursorPosition.X, Buff->CursorPosition.Y);
+
+ if (Ptr->Attributes & COMMON_LVB_TRAILING_BYTE)
+ {
+ /*
+ * The cursor is on the trailing byte of a full-width character.
+ * Go back one position to be on its leading byte.
+ */
+ if (Buff->CursorPosition.X > 0)
+ Buff->CursorPosition.X--;
+ Ptr = ConioCoordToPointer(Buff, Buff->CursorPosition.X, Buff->CursorPosition.Y);
+ }
+
UpdateRect.Left = min(UpdateRect.Left, Buff->CursorPosition.X);
+
EndX = (Buff->CursorPosition.X + TAB_WIDTH) & ~(TAB_WIDTH - 1);
EndX = min(EndX, (UINT)Buff->ScreenBufferSize.X);
- Ptr = ConioCoordToPointer(Buff, Buff->CursorPosition.X, Buff->CursorPosition.Y);
+
while ((UINT)Buff->CursorPosition.X < EndX)
{
Ptr->Char.UnicodeChar = L' ';
- Ptr->Attributes = Buff->ScreenDefaultAttrib;
+ if (Attrib)
+ Ptr->Attributes = Buff->ScreenDefaultAttrib;
+ Ptr->Attributes &= ~COMMON_LVB_SBCSDBCS;
+
++Ptr;
Buff->CursorPosition.X++;
}
- UpdateRect.Right = max(UpdateRect.Right, Buff->CursorPosition.X - 1);
- if (Buff->CursorPosition.X == Buff->ScreenBufferSize.X)
+ if (Buff->CursorPosition.X < Buff->ScreenBufferSize.X)
+ {
+ /* If the following cell is the trailing byte of a full-width character, reset it */
+ if (Ptr->Attributes & COMMON_LVB_TRAILING_BYTE)
+ {
+ Ptr->Char.UnicodeChar = L' ';
+ if (Attrib)
+ Ptr->Attributes = Buff->ScreenDefaultAttrib;
+ Ptr->Attributes &= ~COMMON_LVB_SBCSDBCS;
+ }
+ }
+ UpdateRect.Right = max(UpdateRect.Right, Buff->CursorPosition.X);
+
+ if (Buff->CursorPosition.X >= Buff->ScreenBufferSize.X)
{
if (Buff->Mode & ENABLE_WRAP_AT_EOL_OUTPUT)
{
+ /* Wrapping mode: Go to next line */
Buff->CursorPosition.X = 0;
+ CursorStartX = Buff->CursorPosition.X;
ConioNextLine(Buff, &UpdateRect, &ScrolledLines);
}
else
{
- Buff->CursorPosition.X--;
+ /* The cursor wraps back to its starting position on the same line */
+ Buff->CursorPosition.X = CursorStartX;
}
}
continue;
continue;
}
}
- UpdateRect.Left = min(UpdateRect.Left, Buff->CursorPosition.X);
+ UpdateRect.Left = min(UpdateRect.Left , Buff->CursorPosition.X);
UpdateRect.Right = max(UpdateRect.Right, Buff->CursorPosition.X);
/* For Chinese, Japanese and Korean */
- if (bCJK && Buffer[i] >= 0x80 && mk_wcwidth_cjk(Buffer[i]) == 2)
- {
- /* Buffer[i] is a fullwidth character */
+ bFullwidth = (bCJK && IS_FULL_WIDTH(Buffer[i]));
- if (Buff->CursorPosition.X > 0)
- {
- /* Kill the previous leading byte */
- Ptr = ConioCoordToPointer(Buff, Buff->CursorPosition.X - 1, Buff->CursorPosition.Y);
- if (Ptr->Attributes & COMMON_LVB_LEADING_BYTE)
- {
- Ptr->Char.UnicodeChar = L' ';
- if (Attrib)
- Ptr->Attributes &= ~COMMON_LVB_LEADING_BYTE;
- }
- }
-
- if (Buff->CursorPosition.X == Buff->ScreenBufferSize.X - 1)
+ /* Check whether we can insert the full-width character */
+ if (bFullwidth)
+ {
+ /* It spans two cells and should all fit on the current line */
+ if (Buff->CursorPosition.X >= Buff->ScreenBufferSize.X - 1)
{
- /* New line */
if (Buff->Mode & ENABLE_WRAP_AT_EOL_OUTPUT)
{
+ /* Wrapping mode: Go to next line */
Buff->CursorPosition.X = 0;
+ CursorStartX = Buff->CursorPosition.X;
ConioNextLine(Buff, &UpdateRect, &ScrolledLines);
}
else
{
+ /* The cursor wraps back to its starting position on the same line */
Buff->CursorPosition.X = CursorStartX;
}
}
- /* Set leading */
+ /*
+ * Now be sure we can fit the full-width character.
+ * If the screenbuffer is one cell wide we cannot display
+ * the full-width character, so just skip it.
+ */
+ if (Buff->CursorPosition.X >= Buff->ScreenBufferSize.X - 1)
+ {
+ DPRINT1("Cannot display full-width character! CursorPosition.X = %d, ScreenBufferSize.X = %d\n",
+ Buff->CursorPosition.X, Buff->ScreenBufferSize.X);
+ continue;
+ }
+ }
+
+ Ptr = ConioCoordToPointer(Buff, Buff->CursorPosition.X, Buff->CursorPosition.Y);
+
+ /*
+ * Check whether we are overwriting part of a full-width character,
+ * in which case we need to invalidate it.
+ */
+ if (Ptr->Attributes & COMMON_LVB_TRAILING_BYTE)
+ {
+ /*
+ * The cursor is on the trailing byte of a full-width character.
+ * Go back one position to kill the previous leading byte.
+ */
+ if (Buff->CursorPosition.X > 0)
+ {
+ Ptr = ConioCoordToPointer(Buff, Buff->CursorPosition.X - 1, Buff->CursorPosition.Y);
+ Ptr->Char.UnicodeChar = L' ';
+ if (Attrib)
+ Ptr->Attributes = Buff->ScreenDefaultAttrib;
+ Ptr->Attributes &= ~COMMON_LVB_SBCSDBCS;
+ }
Ptr = ConioCoordToPointer(Buff, Buff->CursorPosition.X, Buff->CursorPosition.Y);
+ }
+
+ /* Insert the character */
+ if (bFullwidth)
+ {
+ ASSERT(Buff->CursorPosition.X < Buff->ScreenBufferSize.X - 1);
+
+ /* Set the leading byte */
Ptr->Char.UnicodeChar = Buffer[i];
if (Attrib)
- Ptr->Attributes = Buff->ScreenDefaultAttrib | COMMON_LVB_LEADING_BYTE;
+ Ptr->Attributes = Buff->ScreenDefaultAttrib;
+ Ptr->Attributes &= ~COMMON_LVB_SBCSDBCS;
+ Ptr->Attributes |= COMMON_LVB_LEADING_BYTE;
- /* Set trailing */
+ /* Set the trailing byte */
Buff->CursorPosition.X++;
Ptr = ConioCoordToPointer(Buff, Buff->CursorPosition.X, Buff->CursorPosition.Y);
+ // Ptr->Char.UnicodeChar = Buffer[i]; // L' ';
if (Attrib)
- Ptr->Attributes = Buff->ScreenDefaultAttrib | COMMON_LVB_TRAILING_BYTE;
+ Ptr->Attributes = Buff->ScreenDefaultAttrib;
+ Ptr->Attributes &= ~COMMON_LVB_SBCSDBCS;
+ Ptr->Attributes |= COMMON_LVB_TRAILING_BYTE;
}
else
{
- Ptr = ConioCoordToPointer(Buff, Buff->CursorPosition.X, Buff->CursorPosition.Y);
Ptr->Char.UnicodeChar = Buffer[i];
if (Attrib)
Ptr->Attributes = Buff->ScreenDefaultAttrib;
+ Ptr->Attributes &= ~COMMON_LVB_SBCSDBCS;
}
+ ++Ptr;
Buff->CursorPosition.X++;
- if (Buff->CursorPosition.X == Buff->ScreenBufferSize.X)
+
+ if (Buff->CursorPosition.X < Buff->ScreenBufferSize.X)
+ {
+ /* If the following cell is the trailing byte of a full-width character, reset it */
+ if (Ptr->Attributes & COMMON_LVB_TRAILING_BYTE)
+ {
+ Ptr->Char.UnicodeChar = L' ';
+ if (Attrib)
+ Ptr->Attributes = Buff->ScreenDefaultAttrib;
+ Ptr->Attributes &= ~COMMON_LVB_SBCSDBCS;
+ }
+ }
+
+ if (Buff->CursorPosition.X >= Buff->ScreenBufferSize.X)
{
if (Buff->Mode & ENABLE_WRAP_AT_EOL_OUTPUT)
{
+ /* Wrapping mode: Go to next line */
Buff->CursorPosition.X = 0;
+ CursorStartX = Buff->CursorPosition.X;
ConioNextLine(Buff, &UpdateRect, &ScrolledLines);
}
else
{
+ /* The cursor wraps back to its starting position on the same line */
Buff->CursorPosition.X = CursorStartX;
}
}
}
- if (bCJK && Buff->CursorPosition.X > 0)
- {
- /* Delete trailing */
- Ptr = ConioCoordToPointer(Buff, Buff->CursorPosition.X, Buff->CursorPosition.Y);
- if (Ptr->Attributes & COMMON_LVB_TRAILING_BYTE)
- {
- Ptr->Char.UnicodeChar = L' ';
- if (Attrib)
- Ptr->Attributes = Buff->ScreenDefaultAttrib;
- }
- }
-
if (!ConioIsRectEmpty(&UpdateRect) && (PCONSOLE_SCREEN_BUFFER)Buff == Console->ActiveBuffer)
{
// TermWriteStream(Console, &UpdateRect, CursorStartX, CursorStartY,
projects / reactos.git / blobdiff