t1demo.c

一个嵌入式操作系统(microwindows)的源代码

/*
 * Copyright (c) 2000, 2001, 2002 Greg Haerr <[e-mail]>
 *
 * Loadable font demo for Microwindows
 *
 * Loads MGL, HZK, T1LIB, FREETYPE, and PCF fonts
 * Must be recompiled when src/config changes
 */
#include <stdio.h>
#include <stdlib.h>
#if UNIX | DOS_DJGPP
#include <time.h>
#endif
#define MWINCLUDECOLORS
#include "nano-X.h"

#define CLIP_POLYGON	0	/* =1 for polygonal region test */
#define HZKBIG5		1	/* =1 for big5 encoding test with HZKFONT*/

#define WIDTH 		340
#define HEIGHT 		340

#if HAVE_EUCJP_SUPPORT
#define MAXFONTS 4
#define FONT1 "k12x10.fnt"
#define FONT2 "k12x12.fnt"
#define FONT3 "k16x16.fnt"
#define FONT4 "k24x24.fnt"
#define FONT5 ""
#elif HAVE_HZK_SUPPORT
#define MAXFONTS 1
#define FONT1 "HZXFONT"
#define FONT2 ""
#define FONT3 ""
#define FONT4 ""
#define FONT5 ""
#elif HAVE_T1LIB_SUPPORT
#define MAXFONTS 5
#define FONT1 "bchr"
#define FONT2 "bchb"
#define FONT3 "dcr10"
#define FONT4 "dcbx10"
#define FONT5 "bchri"
#elif HAVE_FREETYPE_SUPPORT
#define MAXFONTS 5
#define FONT1 "lt1-r-omega-serif"
#define FONT2 "arial"
#define FONT3 "times"
#define FONT4 "cour"
#define FONT5 "timesi"
#elif HAVE_PCF_SUPPORT
#define MAXFONTS 5
#define FONT1 "/usr/lib/X11/fonts/misc/7x14.pcf.gz"
#define FONT2 "/usr/lib/X11/fonts/misc/6x13.pcf.gz"
#define FONT3 "/usr/lib/X11/fonts/misc/9x15.pcf.gz"
#define FONT4 "/usr/lib/X11/fonts/misc/vga.pcf.gz"
#define FONT5 "/usr/lib/X11/fonts/100dpi/helvB12.pcf.gz"
#else
#define MAXFONTS 5
#define FONT1 ""
#define FONT2 ""
#define FONT3 ""
#define FONT4 ""
#define FONT5 ""
#endif

#define RAND(max)	((int) (((float)(max)) * rand() / (RAND_MAX + 1.0)))

static char *names[5] = { FONT1, FONT2, FONT3, FONT4, FONT5 };

int
main(int ac, char **av)
{
	GR_WINDOW_ID window;
	GR_GC_ID gc;
	GR_FONT_ID fontid;
	int x, y;
	GR_REGION_ID regionid;
#if CLIP_POLYGON
	GR_POINT points[] = { {20, 20}, {300, 20}, {300, 300}, {20, 300} };
#else
	GR_RECT clip_rect = { 20, 20, 300, 300 };
#endif

	if (GrOpen() < 0)
		exit(1);

	window = GrNewWindowEx(GR_WM_PROPS_APPWINDOW,
		"t1demo loadable fonts (truetype, t1lib, pcf, mgl, hzk)",
		GR_ROOT_WINDOW_ID, 50, 50, WIDTH, HEIGHT, BLACK);
	GrSelectEvents(window,
		GR_EVENT_MASK_EXPOSURE | GR_EVENT_MASK_CLOSE_REQ);
	GrMapWindow(window);

	gc = GrNewGC();
	GrSetGCUseBackground(gc, GR_FALSE);
	GrSetGCBackground(gc, BLACK);

#if CLIP_POLYGON
	/* polygon clip region */
	regionid = GrNewPolygonRegion(MWPOLY_EVENODD, 3, points);
#else
	/* rectangle clip region */
	regionid = GrNewRegion();
	GrUnionRectWithRegion(regionid, &clip_rect);
#endif
	GrSetGCRegion(gc, regionid);

	srand(time(0));
	while (1) {
		GR_EVENT event;

		GrCheckNextEvent(&event);
		if (event.type == GR_EVENT_TYPE_CLOSE_REQ) {
			GrClose();
			exit(0);
		}

		fontid = GrCreateFont(names[RAND(MAXFONTS)], 20, NULL);
		GrSetFontSize(fontid, RAND(80) + 1);
		GrSetFontRotation(fontid, 330);		/* 33 degrees */
		GrSetFontAttr(fontid, GR_TFKERNING | GR_TFANTIALIAS, 0);
		GrSetGCFont(gc, fontid);

		GrSetGCForeground(gc, rand() & 0xffffff);
		/*GrSetGCBackground(gc, rand() & 0xffffff); */

		x = RAND(WIDTH);
		y = RAND(HEIGHT);

#if HAVE_HZK_SUPPORT
		{
#if HZKBIG5
		/* hzk big5 unicode-16 test*/
		static unsigned short buffer[] = {
		    0x9060, 0x898b, 0x79d1, 0x6280, 0x0061, 0x0041, 0
		};
		GrText(window, gc, x, y, buffer, 7, GR_TFUC16);

		/* hzk big5 dbcs test #1*/
		x = RAND(WIDTH);
		y = RAND(HEIGHT);
		GrText(window, gc, x, y,
		       "Microwindows,舧