status_t
BasicTerminalBuffer::_ResizeHistory(int32 width, int32 historyCapacity)
{
if (width == fWidth && historyCapacity == HistoryCapacity())
return B_OK;
if (historyCapacity <= 0) {
// new history capacity is 0 -- delete the old history object
delete fHistory;
fHistory = NULL;
return B_OK;
}
HistoryBuffer* history = new(std::nothrow) HistoryBuffer;
if (history == NULL)
return B_NO_MEMORY;
status_t error = history->Init(width, historyCapacity);
if (error != B_OK) {
delete history;
return error;
}
// Transfer the lines from the old history to the new one.
if (fHistory != NULL) {
int32 historySize = min_c(HistorySize(), historyCapacity);
TerminalLine* lineBuffer = ALLOC_LINE_ON_STACK(fWidth);
for (int32 i = historySize - 1; i >= 0; i--) {
TerminalLine* line = fHistory->GetTerminalLineAt(i, lineBuffer);
if (line->length > width)
_TruncateLine(line, width);
history->AddLine(line);
}
}
delete fHistory;
fHistory = history;
return B_OK;
}
status_t
BasicTerminalBuffer::_ResizeRewrap(int32 width, int32 height,
int32 historyCapacity)
{
//debug_printf("BasicTerminalBuffer::_ResizeRewrap(): (%ld, %ld, history: %ld) -> "
//"(%ld, %ld, history: %ld)\n", fWidth, fHeight, HistoryCapacity(), width, height,
//historyCapacity);
// The width stays the same. _ResizeSimple() does exactly what we need.
if (width == fWidth)
return _ResizeSimple(width, height, historyCapacity);
// The width changes. We have to allocate a new line array, a new history
// and re-wrap all lines.
TerminalLine** screen = _AllocateLines(width, height);
if (screen == NULL)
return B_NO_MEMORY;
HistoryBuffer* history = NULL;
if (historyCapacity > 0) {
history = new(std::nothrow) HistoryBuffer;
if (history == NULL) {
_FreeLines(screen, height);
return B_NO_MEMORY;
}
status_t error = history->Init(width, historyCapacity);
if (error != B_OK) {
_FreeLines(screen, height);
delete history;
return error;
}
}
int32 historySize = HistorySize();
int32 totalLines = historySize + fHeight;
// re-wrap
TerminalLine* lineBuffer = ALLOC_LINE_ON_STACK(fWidth);
TermPos cursor;
int32 destIndex = 0;
int32 sourceIndex = 0;
int32 sourceX = 0;
int32 destTotalLines = 0;
int32 destScreenOffset = 0;
int32 maxDestTotalLines = INT_MAX;
bool newDestLine = true;
bool cursorSeen = false;
TerminalLine* sourceLine = _HistoryLineAt(-historySize, lineBuffer);
while (sourceIndex < totalLines) {
TerminalLine* destLine = screen[destIndex];
if (newDestLine) {
// Clear a new dest line before using it. If we're about to
// overwrite an previously written line, we push it to the
// history first, though.
if (history != NULL && destTotalLines >= height)
history->AddLine(screen[destIndex]);
destLine->Clear(fAttributes, width);
newDestLine = false;
}
int32 sourceLeft = sourceLine->length - sourceX;
int32 destLeft = width - destLine->length;
//debug_printf(" source: %ld, left: %ld, dest: %ld, left: %ld\n",
//sourceIndex, sourceLeft, destIndex, destLeft);
if (sourceIndex == historySize && sourceX == 0) {
destScreenOffset = destTotalLines;
if (destLeft == 0 && sourceLeft > 0)
destScreenOffset++;
maxDestTotalLines = destScreenOffset + height;
//debug_printf(" destScreenOffset: %ld\n", destScreenOffset);
}
int32 toCopy = min_c(sourceLeft, destLeft);
// If the last cell to copy is the first cell of a
// full-width char, don't copy it yet.
if (toCopy > 0 && IS_WIDTH(
sourceLine->cells[sourceX + toCopy - 1].attributes)) {
//debug_printf(" -> last char is full-width -- don't copy it\n");
toCopy--;
}
// translate the cursor position
if (fCursor.y + historySize == sourceIndex
&& fCursor.x >= sourceX
&& (fCursor.x < sourceX + toCopy
|| (destLeft >= sourceLeft
&& sourceX + sourceLeft <= fCursor.x))) {
cursor.x = destLine->length + fCursor.x - sourceX;
cursor.y = destTotalLines;
if (cursor.x >= width) {
// The cursor was in free space after the official end
// of line.
cursor.x = width - 1;
}
//debug_printf(" cursor: (%ld, %ld)\n", cursor.x, cursor.y);
cursorSeen = true;
}
if (toCopy > 0) {
memcpy(destLine->cells + destLine->length,
sourceLine->cells + sourceX, toCopy * sizeof(TerminalCell));
destLine->length += toCopy;
}
destLine->attributes = sourceLine->attributes;
bool nextDestLine = false;
if (toCopy == sourceLeft) {
if (!sourceLine->softBreak)
nextDestLine = true;
sourceIndex++;
sourceX = 0;
sourceLine = _HistoryLineAt(sourceIndex - historySize,
lineBuffer);
} else {
destLine->softBreak = true;
nextDestLine = true;
sourceX += toCopy;
}
if (nextDestLine) {
destIndex = (destIndex + 1) % height;
destTotalLines++;
newDestLine = true;
if (cursorSeen && destTotalLines >= maxDestTotalLines)
break;
}
}
// If the last source line had a soft break, the last dest line
// won't have been counted yet.
if (!newDestLine) {
destIndex = (destIndex + 1) % height;
destTotalLines++;
}
//debug_printf(" total lines: %ld -> %ld\n", totalLines, destTotalLines);
if (destTotalLines - destScreenOffset > height)
destScreenOffset = destTotalLines - height;
cursor.y -= destScreenOffset;
// When there are less lines (starting with the screen offset) than
// there's room in the screen, clear the remaining screen lines.
for (int32 i = destTotalLines; i < destScreenOffset + height; i++) {
// Move the line we're going to clear to the history, if that's a
// line we've written earlier.
TerminalLine* line = screen[i % height];
if (history != NULL && i >= height)
history->AddLine(line);
line->Clear(fAttributes, width);
}
// Update the values
_FreeLines(fScreen, fHeight);
delete fHistory;
fScreen = screen;
fHistory = history;
if (fWidth != width) {
status_t error = _ResetTabStops(width);
if (error != B_OK)
return error;
}
//debug_printf(" cursor: (%ld, %ld) -> (%ld, %ld)\n", fCursor.x, fCursor.y,
//cursor.x, cursor.y);
fCursor.x = cursor.x;
fCursor.y = cursor.y;
fSoftWrappedCursor = false;
//debug_printf(" screen offset: %ld -> %ld\n", fScreenOffset, destScreenOffset % height);
fScreenOffset = destScreenOffset % height;
//debug_printf(" height %ld -> %ld\n", fHeight, height);
//debug_printf(" width %ld -> %ld\n", fWidth, width);
fHeight = height;
fWidth = width;
fScrollTop = 0;
fScrollBottom = fHeight - 1;
fOriginMode = fSavedOriginMode = false;
return B_OK;
}
status_t ArpRemoteTerminal::PutConfiguration(const BMessage* values)
{
if( !values ) return B_BAD_VALUE;
// Use the ArpMessage interface for extracting our values, since it
// provides some convenience functions for working with colors
// and fonts.
ArpMessage msg(*values);
int i;
const bool locked = LockLooper();
try {
int32 mode = 0;
bool hasMode = msg.HasInt32(ModeConfigName);
if( hasMode )
TermSetMode((mode=msg.GetInt32(ModeConfigName, TermMode())));
if( msg.HasString(LFCharsConfigName) )
TermSetLFChars(msg.GetString(LFCharsConfigName, TermLFChars()));
else if( hasMode && (mode&1<<1) )
TermSetLFChars("\n");
if( msg.HasString(CRCharsConfigName) )
TermSetCRChars(msg.GetString(CRCharsConfigName, TermCRChars()));
else if( hasMode && (mode&1<<1) )
TermSetCRChars("\n\r");
if( msg.HasString(EnterStreamConfigName) )
TermSetEnterStream(msg.GetString(EnterStreamConfigName, TermEnterStream()));
else if( hasMode && (mode&1<<6) )
TermSetEnterStream("\n");
if( msg.HasFont(PlainFontConfigName) ) {
BFont font(&GetStyledFont(TERM_STYLEPLAIN));
if( msg.FindFont(PlainFontConfigName, &font) == B_OK ) {
SetFont(&font);
}
}
if( msg.HasInt32(EncodingConfigName) )
TermSetEncoding(msg.GetInt32(EncodingConfigName, TermEncoding()));
if( msg.HasInt32(StyleConfigName) )
TermSetStyle(msg.GetInt32(StyleConfigName, TermStyle()));
if( msg.HasFloat("Tint Foreground") ) {
SetTintForeground(msg.GetFloat("Tint Foreground", 1.75));
}
if( msg.HasFloat("Tint Background") ) {
SetTintBackground(msg.GetFloat("Tint Background", .25));
}
{
char* name;
type_code type;
int32 count;
for( i=0;
msg.GetInfo(B_RGB_COLOR_TYPE,i,&name,&type,&count)==B_OK;
i++ ) {
int32 idx = ColorVar2Index(name);
if( idx >= 0 ) {
bool bg=false;
TermColorID col = ColorIndex2ID(idx, &bg);
if( bg ) backcolor_from_msg(msg, name, 0, col);
else forecolor_from_msg(msg, name, 0, col);
}
}
}
if( msg.HasInt32(NumRowsConfigName) || msg.HasInt32(NumColsConfigName) ) {
int32 r=0,c=0;
TermGetFixedSize(&r, &c);
TermSetFixedSize(msg.GetInt32(NumRowsConfigName, r),
msg.GetInt32(NumColsConfigName, c));
}
if( msg.HasInt32(RegionTopConfigName) ||
msg.HasInt32(RegionBottomConfigName) ||
msg.HasInt32(RegionLeftConfigName) ||
msg.HasInt32(RegionRightConfigName) ) {
int32 t=0, b=0, l=0, r=0;
TermGetRegion(&t, &b, &l, &r);
TermSetRegion(msg.GetInt32(RegionTopConfigName, t),
msg.GetInt32(RegionBottomConfigName, b),
msg.GetInt32(RegionLeftConfigName, l),
msg.GetInt32(RegionRightConfigName, r));
}
if( msg.HasInt32(AutoScrollConfigName) )
SetAutoScrollMode((AutoScrollType)msg.GetInt32(AutoScrollConfigName,
AutoScrollMode()));
if( msg.HasInt32(HistoryUseConfigName) )
SetHistoryUse((HistoryUseType)msg.GetInt32(HistoryUseConfigName,
HistoryUse()));
if( msg.HasInt32(HistorySizeConfigName) )
SetHistorySize(msg.GetInt32(HistorySizeConfigName, HistorySize()));
if( msg.HasBool(VerifyPasteConfigName) )
SetPasteVerified(msg.GetBool(VerifyPasteConfigName, PasteVerified()));
if( msg.HasBool(RMBPasteConfigName) )
SetRMBPaste(msg.GetBool(RMBPasteConfigName, RMBPaste()));
if( msg.HasString(CurEmulatorConfigName) ) {
const char* name = msg.GetString(CurEmulatorConfigName, 0);
if( name ) {
const ArpEmulationType* type = Emulator().EmulationType();
if( !type || strcmp(name, type->Name) ) {
delete SetEmulator(name);
}
}
}
TermClean();
} catch(...) {
if( locked ) UnlockLooper();
throw;
}
ReportChange(&msg);
if( locked ) UnlockLooper();
return msg.GetError();
}
status_t ArpRemoteTerminal::GetConfiguration(BMessage* values) const
{
if( !values ) return B_BAD_VALUE;
// Use the ArpMessage interface for adding our values, since it
// provides some convenience functions for working with colors
// and fonts.
ArpMessage msg(*values);
int i;
const bool locked = const_cast<ArpRemoteTerminal*>(this)->LockLooper();
try {
ArpD(cdb << ADH << "Getting settings; initial error = "
<< (msg.GetError()) << endl);
msg.SetInt32(ModeConfigName, TermMode());
msg.SetString(LFCharsConfigName, TermLFChars());
msg.SetString(CRCharsConfigName, TermCRChars());
msg.SetString(EnterStreamConfigName, TermEnterStream());
msg.SetFont(PlainFontConfigName, &GetStyledFont(TERM_STYLEPLAIN));
msg.SetInt32(EncodingConfigName, TermEncoding());
msg.SetInt32(StyleConfigName, TermStyle());
const char* varName;
for( i=0; (varName=ColorIndex2Var(i)) != 0; i++ ) {
bool bg=false;
TermColorID col = ColorIndex2ID(i, &bg);
if( bg ) msg.SetRGBColor(varName, ArpColor(TermTextBackground(col)));
else msg.SetRGBColor(varName, ArpColor(TermTextForeground(col)));
}
{
int32 r=0,c=0;
TermGetFixedSize(&r, &c);
msg.SetInt32(NumRowsConfigName, r);
msg.SetInt32(NumColsConfigName, c);
}
{
int32 t=0, b=0, l=0, r=0;
TermGetRegion(&t, &b, &l, &r);
msg.SetInt32(RegionTopConfigName, t);
msg.SetInt32(RegionBottomConfigName, b);
msg.SetInt32(RegionLeftConfigName, l);
msg.SetInt32(RegionRightConfigName, r);
}
msg.SetInt32(AutoScrollConfigName, AutoScrollMode());
msg.SetInt32(HistoryUseConfigName, HistoryUse());
msg.SetInt32(HistorySizeConfigName, HistorySize());
msg.SetBool(VerifyPasteConfigName, PasteVerified());
msg.SetBool(RMBPasteConfigName, RMBPaste());
const ArpEmulationType* type = Emulator().EmulationType();
if( type ) {
msg.AddString(CurEmulatorConfigName,
type->Synonym ? type->Synonym : type->Name);
}
ArpD(cdb << ADH << "Got settings; final error = "
<< (msg.GetError()) << endl);
if( msg.GetError() == B_NO_ERROR ) {
*values = msg;
}
} catch(...) {
if( locked ) const_cast<ArpRemoteTerminal*>(this)->UnlockLooper();
throw;
}
if( locked ) const_cast<ArpRemoteTerminal*>(this)->UnlockLooper();
return msg.GetError();
}