pw_display.c

Very very small GUI. Usefull for small system, without OS or small OS. Event driven, support user m

#include <i_pwin.h>

/* -------------------------------------------------------------------------- */

/** White pixel definition. */
//const Pw_Color _white_pixel = {211, 239, 194};
//const Pw_Color _white_pixel = 255;//{255, 255, 255};
/** Black pixel definition. */
//const Pw_Color _black_pixel = 0;//{  0,   0,  0};


/** Pointer to white pixel.*/ 
//Pw_Color pw_white_pixel = 255;;//(Pw_Color*)&_white_pixel;
/** Pointer to black pixel. */
//Pw_Color pw_black_pixel = 0;//(Pw_Color*)&_black_pixel;

/* -------------------------------------------------------------------------- */

/**
 *  Opens a new display.
 *  @param width  display width
 *  @param height display height
 *  @param dd     pointer to display specific functions
 *  @param dpy    pointer to display to open
 *  @return pointer to newly opened display (same as @p dpy)
 *  @internal
 */ 
Pw_Display* IPw_DisplayOpen(Pw_Coord width, Pw_Coord height, Pw_DD* dd, Pw_Display* dpy)
{
    Pw_uInt i;

    IPW_TRACE_ENTER(DP2);
    IPW_CHECK_PTR2(dd, dpy);
    IPW_TRACE3M(DP1, p, dpy, d, width, d, height);
   
    /*
     * initialize display's fields and
     * create its root window with the 
     * width and height of the display
     */
 
    dpy->width  = width; 
    dpy->height = height; 
    dpy->dd     = dd;

    IPw_RootWindowCreate(dpy, width, height);

    dpy->focus_win = PW_NULL;
    dpy->timeouts  = PW_NULL;

    for (i = 0; i < PW_XINPUTS_MAX_NUM; i++)
        dpy->xinput_win[i] = PW_NULL;

    dpy->close = FALSE;

    IPW_TRACE_EXIT_V(DP2, p, dpy);
    return(dpy);
}

/**
 *  Closes the display @p dpy.
 *  @param dpy pointer to display to close
 *  @internal
 */ 
void IPw_DisplayClose(Pw_Display* dpy){
    IPW_TRACE_ENTER(DP2);
    IPW_CHECK_PTR(dpy);
    IPW_TRACE1(DP1, p, dpy);
 
    /*
     * remove display's timeouts and
     * destroy its root window
     */

    IPw_TimeoutRemoveAll(dpy);
    Pw_WindowDestroy(&dpy->root_win);

    IPW_TRACE_EXIT(DP2);
}

/**
 *  Refreshes the display @p dpy.
 *  Repaint all visible windows of display @p dpy.
 *  @param dpy pointer to display to refresh
 *  @internal
 */ 
void IPw_DisplayRefresh(Pw_Display* dpy){
    IPW_TRACE_ENTER(DP2);
    IPW_CHECK_PTR(dpy);
    IPW_TRACE1(DP1, p, dpy);
 
    Pw_WindowRepaint(&dpy->root_win);

    IPW_TRACE_EXIT(DP2);
} 

/* -------------------------------------------------------------------------- */

/**
 *  Gets the xinput number @p num value of display @p dpy.
 *  @param dpy pointer to display 
 *  @param num xinput number
 *  @return value of xinput number @p num
 */ 
Pw_Int Pw_DisplayGetXInputValue(Pw_Display* dpy, Pw_uInt num){
    Pw_Int val;

    IPW_TRACE_ENTER(DP2);
    IPW_CHECK_PTR(dpy);
    IPW_TRACE1(DP1, p, dpy);
 
    val = dpy->dd->get_xinput_value(dpy, num);

    IPW_TRACE_EXIT_V(DP2, d, val);
    return(val);
} 

/*---------------------------------------------------------------------------
// end of pw_display.c 
//--------------------------------------------------------------------------- */