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/*
* Configurable ps-like program.
* High-level display device routines.
* These global routines call the currently selected display routines.
*
* Copyright (c) 2010 David I. Bell
* Permission is granted to use, distribute, or modify this source,
* provided that this copyright notice remains intact.
*/
#include "ips.h"
/*
* The current display device.
*/
static DISPLAY * display;
/*
* Set the display type to use for later dpy calls.
* A NULL or illegal type sets the display type to a dumb terminal.
* Returns TRUE if the display type was NULL or was known.
*/
BOOL
DpySetDisplay(const char * type)
{
if ((type == NULL) || (strcmp(type, DISPLAY_TYPE_TTY) == 0))
display = GetTtyDisplay();
else if (strcmp(type, DISPLAY_TYPE_CURSES) == 0)
display = GetCursesDisplay();
#ifdef X11
else if (strcmp(type, DISPLAY_TYPE_X11) == 0)
display = GetX11Display();
#endif
else
{
display = GetTtyDisplay();
return FALSE;
}
return TRUE;
}
BOOL
DpyOpen(void)
{
return display->open(display);
}
BOOL
DpyDefineColor(int colorId, const char * foreground, const char * background, int flags)
{
return display->defineColor(display, colorId, foreground, background, flags);
}
void
DpyCreateWindow()
{
display->createWindow(display);
}
void
DpyClose(void)
{
display->close(display);
}
void
DpySetColor(int colorId)
{
display->setColor(display, colorId);
}
void
DpyRefresh(void)
{
display->refresh(display);
}
void
DpyBeginPage(void)
{
display->beginPage(display);
}
void
DpyChar(int ch)
{
display->putChar(display, ch);
}
void
DpyString(const char * str)
{
display->putString(display, str);
}
void
DpyBuffer(const char * buffer, int length)
{
display->putBuffer(display, buffer, length);
}
void
DpyEndPage(void)
{
display->endPage(display);
}
/*
* Handle any events from the display device while waiting for the
* specified number of milliSeconds. This call returns early if an
* input character is available for reading or if a refresh is required.
* Returns TRUE if a refresh is required due to a window resize.
*/
BOOL
DpyEventWait(int milliSeconds)
{
return display->eventWait(display, milliSeconds);
}
BOOL
DpyInputReady(void)
{
return display->inputReady(display);
}
int
DpyReadChar(void)
{
return display->readChar(display);
}
void
DpyRingBell(void)
{
display->ringBell(display);
}
int
DpyGetRows(void)
{
return display->getRows(display);
}
int
DpyGetCols(void)
{
return display->getCols(display);
}
BOOL
DpyDoesScroll(void)
{
return display->doesScroll(display);
}
/* END CODE */
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