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#include "AppHdr.h"
#ifdef USE_TILE_LOCAL
#include "tilereg-text.h"
#include "tilefont.h"
#include "unicode.h"
int TextRegion::print_x;
int TextRegion::print_y;
TextRegion *TextRegion::text_mode = NULL;
int TextRegion::text_col = 0;
TextRegion *TextRegion::cursor_region= NULL;
int TextRegion::cursor_flag = 0;
int TextRegion::cursor_x;
int TextRegion::cursor_y;
TextRegion::TextRegion(FontWrapper *font) :
cbuf(NULL),
abuf(NULL),
cx_ofs(0),
cy_ofs(0),
m_font(font)
{
ASSERT(font);
dx = m_font->char_width();
dy = m_font->char_height();
}
void TextRegion::on_resize()
{
delete[] cbuf;
delete[] abuf;
int size = mx * my;
cbuf = new ucs_t[size];
abuf = new uint8_t[size];
for (int i = 0; i < size; i++)
{
cbuf[i] = ' ';
abuf[i] = 0;
}
}
TextRegion::~TextRegion()
{
delete[] cbuf;
delete[] abuf;
}
void TextRegion::adjust_region(int *x1, int *x2, int y)
{
*x2 = *x2 + 1;
}
void TextRegion::addstr(const char *buffer)
{
ucs_t buf2[1024], c;
int j = 0;
int clen;
do
{
buffer += clen = utf8towc(&c, buffer);
bool newline = false;
if (c == '\r')
continue;
if (c == '\n')
{
c = 0;
newline = true;
}
// TODO: use wcwidth() to handle widths!=1:
// * 2 for CJK chars -- add a zero-width blank?
// * 0 for combining characters -- would need extra support
// * -1 for non-printable stuff -- assert or ignore
buf2[j] = c;
j++;
if (c == 0 || j == ARRAYSZ(buf2))
{
if (j-1 != 0)
addstr_aux(buf2, j - 1); // draw it
if (newline)
{
print_x = cx_ofs;
print_y++;
j = 0;
if (print_y - cy_ofs == my)
scroll();
}
}
} while (clen);
if (cursor_flag)
cgotoxy(print_x+1, print_y+1);
}
void TextRegion::addstr_aux(const ucs_t *buffer, int len)
{
int x = print_x - cx_ofs;
int y = print_y - cy_ofs;
int adrs = y * mx;
int head = x;
int tail = x + len - 1;
// XXX: What does this even do?
adjust_region(&head, &tail, y);
for (int i = 0; i < len && x + i < mx; i++)
{
cbuf[adrs+x+i] = buffer[i];
abuf[adrs+x+i] = text_col;
}
print_x += len;
}
void TextRegion::clear_to_end_of_line()
{
int cx = print_x - cx_ofs;
int cy = print_y - cy_ofs;
int col = text_col;
int adrs = cy * mx;
ASSERT(adrs + mx - 1 < mx * my);
for (int i = cx; i < mx; i++)
{
cbuf[adrs+i] = ' ';
abuf[adrs+i] = col;
}
}
void TextRegion::putwch(ucs_t ch)
{
// special case: check for '0' char: map to space
if (ch == 0)
ch = ' ';
addstr_aux(&ch, 1);
}
void TextRegion::textcolor(int color)
{
text_col = color;
}
void TextRegion::textbackground(int col)
{
textcolor(col*16 + (text_col & 0xf));
}
void TextRegion::cgotoxy(int x, int y)
{
ASSERT(x >= 1);
ASSERT(y >= 1);
print_x = x-1;
print_y = y-1;
#if 0
if (cursor_region != NULL && cursor_flag)
{
cursor_x = -1;
cursor_y = -1;
cursor_region = NULL;
}
#endif
if (cursor_flag)
{
cursor_x = print_x;
cursor_y = print_y;
cursor_region = text_mode;
}
}
int TextRegion::wherex()
{
return print_x + 1;
}
int TextRegion::wherey()
{
return print_y + 1;
}
void TextRegion::_setcursortype(int curstype)
{
cursor_flag = curstype;
if (cursor_region != NULL)
{
cursor_x = -1;
cursor_y = -1;
}
if (curstype)
{
cursor_x = print_x;
cursor_y = print_y;
cursor_region = text_mode;
}
}
void TextRegion::render()
{
#ifdef DEBUG_TILES_REDRAW
cprintf("rendering TextRegion\n");
#endif
if (this == TextRegion::cursor_region && cursor_x > 0 && cursor_y > 0)
{
int idx = cursor_x + mx * cursor_y;
ucs_t char_back = cbuf[idx];
uint8_t col_back = abuf[idx];
cbuf[idx] = '_';
abuf[idx] = WHITE;
m_font->render_textblock(sx + ox, sy + oy, cbuf, abuf, mx, my);
cbuf[idx] = char_back;
abuf[idx] = col_back;
}
else
m_font->render_textblock(sx + ox, sy + oy, cbuf, abuf, mx, my);
}
void TextRegion::clear()
{
for (int i = 0; i < mx * my; i++)
{
cbuf[i] = ' ';
abuf[i] = 0;
}
}
void TextRegion::scroll()
{
for (int idx = 0; idx < mx*(my-1); idx++)
{
cbuf[idx] = cbuf[idx + mx];
abuf[idx] = abuf[idx + mx];
}
for (int idx = mx*(my-1); idx < mx*my; idx++)
{
cbuf[idx] = ' ';
abuf[idx] = 0;
}
if (print_y > 0)
print_y -= 1;
if (cursor_y > 0)
cursor_y -= 1;
}
#endif
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