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/* Public Domain Curses */
#include "pdcx11.h"
RCSID("$Id: pdcscrn.c,v 1.55 2008/07/14 04:24:52 wmcbrine Exp $")
/* COLOR_PAIR to attribute encoding table. */
short *xc_atrtab = (short *)NULL;
/* close the physical screen */
void PDC_scr_close(void)
{
PDC_LOG(("PDC_scr_close() - called\n"));
}
void PDC_scr_free(void)
{
XCursesExit();
xc_atrtab = (short *)NULL;
}
/* open the physical screen -- allocate SP, miscellaneous intialization */
int PDC_scr_open(int argc, char **argv)
{
extern bool sb_started;
PDC_LOG(("PDC_scr_open() - called\n"));
if ((XCursesInitscr(argc, argv) == ERR) || !SP)
return ERR;
SP->cursrow = SP->curscol = 0;
SP->orig_attr = FALSE;
SP->sb_on = sb_started;
SP->sb_total_y = 0;
SP->sb_viewport_y = 0;
SP->sb_cur_y = 0;
SP->sb_total_x = 0;
SP->sb_viewport_x = 0;
SP->sb_cur_x = 0;
return OK;
}
/* the core of resize_term() */
int PDC_resize_screen(int nlines, int ncols)
{
PDC_LOG(("PDC_resize_screen() - called. Lines: %d Cols: %d\n",
nlines, ncols));
if (nlines || ncols || !SP->resized)
return ERR;
shmdt((char *)Xcurscr);
XCursesInstructAndWait(CURSES_RESIZE);
if ((shmid_Xcurscr = shmget(shmkey_Xcurscr,
SP->XcurscrSize + XCURSESSHMMIN, 0700)) < 0)
{
perror("Cannot allocate shared memory for curscr");
kill(xc_otherpid, SIGKILL);
return ERR;
}
XCursesLINES = SP->lines;
XCursesCOLS = SP->cols;
PDC_LOG(("%s:shmid_Xcurscr %d shmkey_Xcurscr %d SP->lines %d "
"SP->cols %d\n", XCLOGMSG, shmid_Xcurscr,
shmkey_Xcurscr, SP->lines, SP->cols));
Xcurscr = (unsigned char*)shmat(shmid_Xcurscr, 0, 0);
xc_atrtab = (short *)(Xcurscr + XCURSCR_ATRTAB_OFF);
SP->resized = FALSE;
return OK;
}
void PDC_reset_prog_mode(void)
{
PDC_LOG(("PDC_reset_prog_mode() - called.\n"));
}
void PDC_reset_shell_mode(void)
{
PDC_LOG(("PDC_reset_shell_mode() - called.\n"));
}
void PDC_restore_screen_mode(int i)
{
}
void PDC_save_screen_mode(int i)
{
}
void PDC_init_pair(short pair, short fg, short bg)
{
xc_atrtab[pair * 2] = fg;
xc_atrtab[pair * 2 + 1] = bg;
}
int PDC_pair_content(short pair, short *fg, short *bg)
{
*fg = xc_atrtab[pair * 2];
*bg = xc_atrtab[pair * 2 + 1];
return OK;
}
bool PDC_can_change_color(void)
{
return TRUE;
}
int PDC_color_content(short color, short *red, short *green, short *blue)
{
XColor *tmp = (XColor *)(Xcurscr + XCURSCR_XCOLOR_OFF);
tmp->pixel = color;
XCursesInstructAndWait(CURSES_GET_COLOR);
*red = ((double)(tmp->red) * 1000 / 65535) + 0.5;
*green = ((double)(tmp->green) * 1000 / 65535) + 0.5;
*blue = ((double)(tmp->blue) * 1000 / 65535) + 0.5;
return OK;
}
int PDC_init_color(short color, short red, short green, short blue)
{
XColor *tmp = (XColor *)(Xcurscr + XCURSCR_XCOLOR_OFF);
tmp->pixel = color;
tmp->red = ((double)red * 65535 / 1000) + 0.5;
tmp->green = ((double)green * 65535 / 1000) + 0.5;
tmp->blue = ((double)blue * 65535 / 1000) + 0.5;
XCursesInstructAndWait(CURSES_SET_COLOR);
return OK;
}
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