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add insertLine/deleteLine for TextPort.

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git-svn-id: svn://qnap.local/TwoTerm/trunk@1900 5590a31f-7b70-45f8-8c82-aa3a8e5f4507
This commit is contained in:
Kelvin Sherlock 2010-12-24 20:00:44 +00:00
parent 42d8aebf6b
commit 46eac4c3ec
2 changed files with 102 additions and 9 deletions
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100
Screen.cpp
View File

@ -152,7 +152,7 @@ void Screen::tabTo(unsigned xPos)
CharInfo clear(' ', _flag);
CharInfoIterator iter;
xPos = std::min(xPos, width() - 1);
xPos = std::min((int)xPos, width() - 1);
_updates.push_back(_cursor);
@ -348,8 +348,8 @@ void Screen::eraseScreen()
void Screen::eraseRect(iRect rect)
{
unsigned maxX = std::min(width(), (unsigned)rect.maxX());
unsigned maxY = std::min(height(), (unsigned)rect.maxY());
unsigned maxX = std::min(width(), rect.maxX());
unsigned maxY = std::min(height(), rect.maxY());
CharInfo clear;
@ -423,7 +423,6 @@ void Screen::reverseLineFeed()
}
void Screen::insertLine(unsigned line)
{
@ -448,6 +447,54 @@ void Screen::insertLine(unsigned line)
_updates.push_back(iPoint(width() - 1, height() - 1));
}
// line is relative to the textView.
// textView has been constrained.
void Screen::insertLine(TextPort *textPort, unsigned line)
{
iRect frame;
CharInfo ci;
int minY;
int maxY;
int minX;
int maxX;
if (!textPort) return insertLine(line);
frame = textPort->frame;
minY = frame.minY();
maxY = frame.maxY();
minX = frame.minX();
minY = frame.maxX();
if (line < 0) return;
if (line >= frame.height()) return;
// move all subsequent lines forward by 1.
for (int y = maxY - 2; y >= minY + line; --y)
{
CharInfoIterator iter;
CharInfoIterator end;
iter = _screen[y].begin() + minX;
end = _screen[y].begin() + maxX;
std::copy(iter, end, _screen[y + 1].begin() + minX);
}
// clear the line.
std::fill(_screen[minY + line].begin() + minX, _screen[minY + line].begin() + maxX, ci);
// set the update region.
_updates.push_back(iPoint(minX, minY + line));
_updates.push_back(iPoint(maxX - 1, maxY - 1));
}
void Screen::deleteLine(unsigned line)
{
@ -475,7 +522,50 @@ void Screen::deleteLine(unsigned line)
}
void Screen::deleteLine(TextPort *textPort, unsigned line)
{
iRect frame;
CharInfo ci;
int minY;
int maxY;
int minX;
int maxX;
if (!textPort) return deleteLine(line);
frame = textPort->frame;
minY = frame.minY();
maxY = frame.maxY();
minX = frame.minX();
minY = frame.maxX();
if (line < 0) return;
if (line >= frame.height()) return;
// move all subsequent lines back by 1.
for (int y = minY + line; y < maxY - 2; ++y)
{
CharInfoIterator iter;
CharInfoIterator end;
iter = _screen[y + 1].begin() + minX;
end = _screen[y + 1].begin() + maxX;
std::copy(iter, end, _screen[y].begin() + minX);
}
// clear the last line.
std::fill(_screen[maxY - 1].begin() + minX, _screen[maxY - 1].begin() + maxX, ci);
// set the update region.
_updates.push_back(iPoint(minX, minY + line));
_updates.push_back(iPoint(maxX - 1, maxY - 1));
}

11
Screen.h
View File

@ -87,8 +87,8 @@ public:
iPoint cursor() const;
uint8_t flag() const;
unsigned height() const;
unsigned width() const;
int height() const;
int width() const;
int incrementX(bool clamp = true);
@ -137,6 +137,9 @@ public:
void deleteLine(unsigned line);
void insertLine(unsigned line);
void insertLine(TextPort *textPort, unsigned line);
void deleteLine(TextPort *textPort, unsigned line);
void beginUpdate();
iRect endUpdate();
@ -196,12 +199,12 @@ inline uint8_t Screen::flag() const
return _flag;
}
inline unsigned Screen::height() const
inline int Screen::height() const
{
return _port.frame.size.height;
}
inline unsigned Screen::width() const
inline int Screen::width() const
{
return _port.frame.size.width;
}