window.c

语音信号处理工具包,里面提供了很多有用的操作。这是最新版本

/*
  ----------------------------------------------------------------
	Speech Signal Processing Toolkit (SPTK): version 3.0
			 SPTK Working Group

		   Department of Computer Science
		   Nagoya Institute of Technology
				and
    Interdisciplinary Graduate School of Science and Engineering
		   Tokyo Institute of Technology
		      Copyright (c) 1984-2000
			All Rights Reserved.

  Permission is hereby granted, free of charge, to use and
  distribute this software and its documentation without
  restriction, including without limitation the rights to use,
  copy, modify, merge, publish, distribute, sublicense, and/or
  sell copies of this work, and to permit persons to whom this
  work is furnished to do so, subject to the following conditions:

    1. The code must retain the above copyright notice, this list
       of conditions and the following disclaimer.

    2. Any modifications must be clearly marked as such.

  NAGOYA INSTITUTE OF TECHNOLOGY, TOKYO INSITITUTE OF TECHNOLOGY,
  SPTK WORKING GROUP, AND THE CONTRIBUTORS TO THIS WORK DISCLAIM
  ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT
  SHALL NAGOYA INSTITUTE OF TECHNOLOGY, TOKYO INSITITUTE OF
  TECHNOLOGY, SPTK WORKING GROUP, NOR THE CONTRIBUTORS BE LIABLE
  FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
  DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
  ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  PERFORMANCE OF THIS SOFTWARE.
 ----------------------------------------------------------------
*/

/****************************************************************
*	Setup Window for xgr.					*
****************************************************************/
#include	<X11/Xlib.h>
#include	<X11/Xutil.h>
#include	<X11/cursorfont.h>
#include	<stdio.h>
#include	"gcdata.h"
#include	"xgr.h"

Display		*display;
Window		main_window;
int		screen;
GC		gc, pixmapGC;
unsigned long	forepix, backpix, highpix, brdrpix, mouspix;

static XSizeHints		xsh;
static Atom			property;
static Pixmap			pixmap;
static Cursor			watch_cur;
static XGCValues		gcval;
static Font			font;
static XEvent			ev;
static XSetWindowAttributes	winatt;
static XWindowAttributes	wa;

long	pixmap_w, pixmap_h;
long	origin_x = 0, origin_y = 0;
long	window_x, window_y, window_w, window_h;
int	bwidth = 2;

extern float	shrink;
extern int	landscape;
extern int	reverse, c_flg;
extern int	fno;
extern char	*fore_color, *back_color;
extern char	*high_color, *brdr_color, *mous_color;
extern char	*geometry;
extern char	*dpy;
extern char	*cmnd, *windowtitle;

open_display( display_name )
	char	*display_name;
{
	if ((display = XOpenDisplay(display_name)) == NULL)  {
		fprintf(stderr, "%s: Can't open display '%s'\n",
			cmnd, XDisplayName(display_name));
		exit(2);
	}
}

init_window( argc, argv )
	int	argc;
	char	*argv[];
{
	unsigned long	get_color_pix();

	screen = DefaultScreen(display);

#if BSD
	bzero(&xsh, sizeof(xsh));
#else
	memset(&xsh, 0, sizeof(xsh));
#endif
	if (geometry)  {
		int	bitmask;

		bitmask = XGeometry(display, screen, geometry, NULL,
				bwidth, 1, 1, 1, 1,
				&(xsh.x), &(xsh.y),
				&(xsh.width), &(xsh.height));
		if (bitmask & (XValue|YValue))  {
			xsh.flags |= USPosition;
		}
		if (bitmask & (WidthValue|HeightValue))  {
			xsh.flags |= USSize;
		}
	}
	else  {
		xsh.flags = USPosition | PSize;
		if (!landscape)  {
			xsh.width  = XLENG / shrink;
			xsh.height = YLENG / shrink;
			xsh.x = X0;
			xsh.y = Y0;
		}
		else  {
			xsh.width  = YLENG / shrink;
			xsh.height = XLENG / shrink;
			xsh.x = X0_LAND;
			xsh.y = Y0;
		}
	}

/**  Color  **/
#ifdef COLOR_BUG
	reverse = 1;
#endif
	if (DisplayPlanes(display, screen) >=3 )  {
		c_flg = 1;
		if (!reverse)  {
			forepix = get_color_pix(fore_color);
			backpix = get_color_pix(back_color);
			highpix = get_color_pix(high_color);
			brdrpix = get_color_pix(brdr_color);
			mouspix = get_color_pix(mous_color);
		}
		else  {
			forepix = get_color_pix(back_color);
			backpix = get_color_pix(fore_color);
			highpix = get_color_pix(high_color);
			brdrpix = get_color_pix(brdr_color);
			mouspix = get_color_pix(mous_color);
		}
	}
	else  {
		if (!reverse)  {
			forepix = BlackPixel(display, screen);
			highpix = BlackPixel(display, screen);
			backpix = WhitePixel(display, screen);
			brdrpix = BlackPixel(display, screen);
			mouspix = BlackPixel(display, screen);
		}
		else  {
			forepix = WhitePixel(display, screen);
			highpix = WhitePixel(display, screen);
			backpix = BlackPixel(display, screen);
			brdrpix = WhitePixel(display, screen);
			mouspix = WhitePixel(display, screen);
		}
	}
	

/**  Generate Window  **/
	main_window = XCreateSimpleWindow(display, DefaultRootWindow(display),
			xsh.x, xsh.y, xsh.width, xsh.height,
			bwidth,	brdrpix, backpix);

	XSetStandardProperties(display, main_window, windowtitle, windowtitle,
		None, argv, argc, &xsh);

/*	winatt.bit_gravity = SouthWestGravity;	*/
	XChangeWindowAttributes(display, main_window, CWBitGravity, &winatt);

/**  Map Window  **/
	XSelectInput(display, main_window, StructureNotifyMask);
	XMapWindow(display, main_window);
	for (;;)  {
		XNextEvent(display, &ev);
		if (ev.type == MapNotify)
			break;
	}
	XSelectInput(display, main_window,
	ButtonPressMask | PointerMotionMask | KeyPressMask | ExposureMask);
/*		KeyReleaseMask|ExposureMask|StructureNotifyMask);
*/
/**  Cursor  **/
	watch_cur = XCreateFontCursor(display, XC_watch);
	XDefineCursor(display, main_window, watch_cur);

/**  GC  **/
	gcval.line_width = 1;
	gc = XCreateGC(display, main_window, GCLineWidth, &gcval);

	XSetFunction(display, gc, GXcopy);
	XSetGraphicsExposures(display, gc, False);
	XSetForeground(display, gc, forepix);
	XSetBackground(display, gc, backpix);

	font = XLoadFont(display, f_name[fno]);
	XSetFont(display, gc, font);
}

init_pixmap()
{
	if (!landscape)  {
		pixmap_w = XLENG / shrink;
		pixmap_h = YLENG / shrink;
	}
	else  {
		pixmap_w = YLENG / shrink;
		pixmap_h = XLENG / shrink;
	}
	pixmap = XCreatePixmap(display, main_window, pixmap_w, pixmap_h,
			       DefaultDepth(display, screen));
	pixmapGC = XCreateGC(display, pixmap, 0L, &gcval);
	XFillRectangle(display, pixmap, pixmapGC, 0, 0, pixmap_w, pixmap_h);
	XSetFunction(display, pixmapGC, GXcopy);
	XSetFillStyle(display, pixmapGC, FillSolid);
	XSetForeground(display, pixmapGC, forepix);
	XSetBackground(display, pixmapGC, backpix);
}
	
close_window()
{
	XFreeCursor(display, watch_cur);
	XFreeGC(display, gc);
	XFreeGC(display, pixmapGC);
	XFreePixmap(display, pixmap);
	XDestroyWindow(display, main_window);
/**/	exit(0);
/**/	XCloseDisplay(display);		/* this function case an error !! */
}

main_loop()
{
	char	key;
	int	paper_w, paper_h;
	float	shr_w, shr_h;
	long	diff;

	if (!landscape)  {
		paper_w = XLENG / shrink;
		paper_h = YLENG / shrink;
	}
	else  {
		paper_w = YLENG / shrink;
		paper_h = XLENG / shrink;
	}
	set_all();
	XUndefineCursor(display, main_window);
	for (;;)  {
	    XNextEvent(display, &ev);
	    switch(ev.type)  {
		case Expose:
		    if (ev.xexpose.count == 0)
			get_window_size();
		    realize_part(ev.xexpose.x, ev.xexpose.y, 
				 ev.xexpose.width, ev.xexpose.height, 
				 ev.xexpose.x, ev.xexpose.y);
		    break;
		case MappingNotify:
/*		    XRefreshKeyboardMapping(&ev);
*/		    XRefreshKeyboardMapping((XMappingEvent *)&ev);
		    break;
/*		case ConfigureNotify:
		    get_window_size();
		    shr_w = paper_w / window_w;
		    shr_h = paper_h / window_h;
		    shrink = (shr_w >= shr_h) ? shr_w :shr_h;
		    rewind(stdin);
		    plot();
		    main_loop();

		    origin_x += window_x;
		    origin_y += window_y;
		    realize();
		    realize_part(origin_x, origin_y, window_w, window_h,
				 origin_x, origin_y);
		    origin_x = paper_w - xsh.width;
		    origin_y = paper_h - xsh.height;
		    origin_x += xsh.x;
		    origin_y += xsh.y;
		    break;
*/		case MotionNotify:
		    break;
		case ButtonPress:
		    break;
		case KeyPress:
		    get_window_size();
		    XLookupString(&ev.xkey, &key, 1, NULL, NULL);
		    switch (key)  {
			case 'j':
			    diff = paper_h - window_h;
			    if (origin_y >= diff)  {
				    beep();			break;
			    }
			    origin_y += window_h / 4;
			    if (origin_y > diff)
				    origin_y = diff;
			    if (origin_y < 0)
				    origin_y = 0;
			    realize();
			    continue;				break;
			case 'k':
			    if (origin_y <= 0)  {
				    beep();			break;
			    }
			    origin_y -= window_h / 4;
			    if (origin_y < 0)
				    origin_y = 0;
			    realize();
			    continue;				break;
			case 'l':
			    diff = paper_w - window_w;
			    if (origin_x >= diff)  {
				    beep();			break;
			    }
			    origin_x += window_w / 4;
			    if (origin_x > diff)
				    origin_x = diff;
			    if (origin_x < 0)
				    origin_x = 0;
			    realize();
			    continue;				break;
			case 'h':
			    if (origin_x <= 0)  {
				    beep();			break;
			    }
			    origin_x -= window_w / 4;
			    if (origin_x < 0)
				    origin_x = 0;
			    realize();
			    continue;				break;
			case 'q':
			case '\003':		/*  control-C  */
			case '\004':		/*  control-D  */
						close_window();	break;
			default:		beep();		break;
		    }
		    break;
		default:
		    break;
	    }
	}
}

realize()
{
	realize_part(origin_x, origin_y, xsh.width, xsh.height, 0, 0);
}

realize_part( src_x, src_y, width, height, dest_x, dest_y )
	int	src_x, src_y, width, height, dest_x, dest_y;
{
	XDefineCursor(display, main_window, watch_cur);
	XCopyArea(display, pixmap, main_window, gc,
		  src_x, src_y, width, height, dest_x, dest_y);
	XUndefineCursor(display, main_window);
}

set_all()
{
	XCopyArea(display, main_window, pixmap, pixmapGC,
		  0, 0, xsh.width, xsh.height, 0, 0);
}	
	
beep()
{
	XBell(display, 100);
}

get_window_size()
{
	XGetWindowAttributes(display, main_window, &wa);
	window_x = wa.x;
	window_y = wa.y;
	window_w = wa.width;
	window_h = wa.height;
}

unsigned long	get_color_pix( color_name )
	char	*color_name;
{
	Colormap        cmap;
	XColor          color, exact;
	
	cmap = DefaultColormap(display, screen);
	XAllocNamedColor(display, cmap, color_name, &color, &exact);
	
	return (color.pixel);
}