Screen::Screen(int l, int c)
: lines(l),
columns(c),
screenLines(new ImageLine[lines+1] ),
_scrolledLines(0),
_droppedLines(0),
hist(new HistoryScrollNone()),
cuX(0), cuY(0),
cu_re(0),
tmargin(0), bmargin(0),
tabstops(0),
sel_begin(0), sel_TL(0), sel_BR(0),
sel_busy(false),
columnmode(false),
ef_fg(CharacterColor()), ef_bg(CharacterColor()), ef_re(0),
sa_cuX(0), sa_cuY(0),
sa_cu_re(0),
lastPos(-1)
{
lineProperties.resize(lines+1);
for (int i=0;i<lines+1;i++)
lineProperties[i]=LINE_DEFAULT;
initTabStops();
clearSelection();
reset();
}
void Screen::setBackColor(int space, int color)
{
currentBackground = CharacterColor(space, color);
if ( currentBackground.isValid() )
updateEffectiveRendition();
else
setBackColor(COLOR_SPACE_DEFAULT,DEFAULT_BACK_COLOR);
}
void Screen::setBackColor(int space, int color)
{
cu_bg = CharacterColor(space, color);
if ( cu_bg.isValid() )
effectiveRendition();
else
setBackColor(COLOR_SPACE_DEFAULT,DEFAULT_BACK_COLOR);
}
void Screen::setForeColor(int space, int color)
{
cu_fg = CharacterColor(space, color);
if ( cu_fg.isValid() )
effectiveRendition();
else
setForeColor(COLOR_SPACE_DEFAULT,DEFAULT_FORE_COLOR);
}
Screen::Screen(int l, int c)
: lines(l),
columns(c),
screenLines(new ImageLine[lines+1] ),
_scrolledLines(0),
_droppedLines(0),
history(new HistoryScrollNone()),
cuX(0), cuY(0),
currentRendition(0),
_topMargin(0), _bottomMargin(0),
selBegin(0), selTopLeft(0), selBottomRight(0),
blockSelectionMode(false),
effectiveForeground(CharacterColor()), effectiveBackground(CharacterColor()), effectiveRendition(0),
lastPos(-1)
{
lineProperties.resize(lines+1);
for (int i=0;i<lines+1;i++)
lineProperties[i]=LINE_DEFAULT;
initTabStops();
clearSelection();
reset();
}
//Macro to convert x,y position on screen to position within an image.
//
//Originally the image was stored as one large contiguous block of
//memory, so a position within the image could be represented as an
//offset from the beginning of the block. For efficiency reasons this
//is no longer the case.
//Many internal parts of this class still use this representation for parameters and so on,
//notably moveImage() and clearImage().
//This macro converts from an X,Y position into an image offset.
#ifndef loc
#define loc(X,Y) ((Y)*columns+(X))
#endif
Character Screen::defaultChar = Character(' ',
CharacterColor(COLOR_SPACE_DEFAULT,DEFAULT_FORE_COLOR),
CharacterColor(COLOR_SPACE_DEFAULT,DEFAULT_BACK_COLOR),
DEFAULT_RENDITION);
//#define REVERSE_WRAPPED_LINES // for wrapped line debug
Screen::Screen(int l, int c)
: lines(l),
columns(c),
screenLines(new ImageLine[lines+1] ),
_scrolledLines(0),
_droppedLines(0),
history(new HistoryScrollNone()),
cuX(0), cuY(0),
currentRendition(0),
_topMargin(0), _bottomMargin(0),