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/*

 * font demo for Nano-X

 * also includes region clipping demo

 */

#include <stdio.h>

#include <stdlib.h>

#if UNIX | DOS_DJGPP

#include <time.h>

#endif

#define MWINCLUDECOLORS

#include "nano-X.h"

#define MAXW            (630-50)

#define MAXH            (470-50)

#define CLIP_POLYGON    0        /* =1 for polygonal region test*/

#if HAVE_HZK_SUPPORT

#define BIG5

#define MAXFONTS 1

#ifndef BIG5 

#define FONT1 "HZKFONT"

#define FONT2 "HZKFONT"

#define FONT3 "HZKFONT"

#define FONT4 "HZKFONT"

#define FONT5 "HZKFONT"

#else

#define FONT1 "HZXFONT"

#define FONT2 "HZXFONT"

#define FONT3 "HZXFONT"

#define FONT4 "HZXFONT"

#define FONT5 "HZXFONT"

#endif

#elif HAVE_T1LIB_SUPPORT

#define MAXFONTS 5

#define FONT1 "bchr"

#define FONT2 "bchb"

#define FONT3 "dcr10"

#define FONT4 "dcbx10"

#define FONT5 "bchri"

#else

/* truetype*/

#define MAXFONTS 5

#define FONT1 "lt1-r-omega-serif"

#define FONT2 "arial"

#define FONT3 "times"

#define FONT4 "cour"

#define FONT5 "timesi"

#endif

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

int main()

{

        GR_WINDOW_ID    window;

        GR_EVENT        event;

        GR_GC_ID        gc;

        GR_FONT_ID      fontid;

        int             i, x, y;

        GR_REGION_ID    regionid = 0;

#if CLIP_POLYGON

        GR_POINT        points[]={ {100, 100},

                                {300, 100},

                                {300, 300},

                                {100, 300}};

#else

        GR_RECT         clip_rect={100,100,300,300};

#endif

        srand(time(0));

        GrOpen();

        window = GrNewWindow(GR_ROOT_WINDOW_ID, 50,50, MAXW,MAXH, 4, BLACK,BLUE);

        GrMapWindow(window);

        gc = GrNewGC();

#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);

        GrSelectEvents(window,GR_EVENT_MASK_ALL);

        GrSetGCUseBackground(gc,GR_FALSE);

        GrSetGCBackground(gc, GR_RGB(0, 0, 0));

        while(1) {

              GrCheckNextEvent(&event);

              i = (int)((float)MAXFONTS * rand() / (RAND_MAX + 1.0));

              fontid = GrCreateFont(names[i], 20, NULL);

              GrSetFontSize(fontid, 1+(int)(80.0 * rand() / (RAND_MAX+1.0)));

              GrSetFontRotation(fontid, 330);   /* 33 degrees*/

              GrSetFontAttr(fontid, GR_TFKERNING | GR_TFANTIALIAS, 0);

              GrSetGCFont(gc, fontid);

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

              GrSetGCForeground(gc, rand() & 0xffffff);

              x = (int) ((MAXW * 1.0) *rand()/(RAND_MAX+1.0));

              y = (int) ((MAXH * 1.0) *rand()/(RAND_MAX+1.0));

#if HAVE_HZK_SUPPORT

             {  /* to test Unicode 16 chinese characters display ,use HZK font Bitmap font (Metrix font). */

#ifndef BIG5            

                char buffer[256];

                buffer[0]=0x6c;

                buffer[1]=0x49;

                buffer[2]=0x73;

                buffer[3]=0x8b;

                buffer[4]=0x79;

                buffer[5]=0xd1;

                buffer[6]=0x62;

                buffer[7]=0x80;

                buffer[8]=0x61;

                buffer[9]=0x00;

                buffer[10]=0x41;

                buffer[11]=0x00;

                buffer[12]=0x00;

                buffer[13]=0xa1;

                buffer[14]=0x00;

                buffer[15]=0xa6;

                buffer[16]=0x6c;

                buffer[17]=0x49;

                buffer[18]=0x0;

                buffer[19]=0x0;

                GrText(window, gc,x,y+20, buffer,17, GR_TFUC16);

                x=0;y=16;

                GrText(window, gc,x,y+20, buffer,17, GR_TFUC16);

#else

                unsigned short buffer[7];

                buffer[0]=0x9060;

                buffer[1]=0x898b;

                buffer[2]=0x79d1;

                buffer[3]=0x6280;

                buffer[4]=0x0061;

                buffer[5]=0x0041;

                buffer[6]=0x0;

                GrText(window, gc,x,y+20, buffer,7, GR_TFUC16);

                x=0;y=16;

                GrText(window, gc,x,y+20, buffer,7, GR_TFUC16);

#endif

              }

#ifndef BIG5

              x=0;y=16;

              /* HZK Metrix font test, includes Chinese and English*/

              GrText(window, gc,x,y, "Microwindows,欢迎使用中英文点阵字体",

                      -1, GR_TFASCII);

#else   

              GrText(window, gc,x,y, "Microwindows,舧ㄏノい璣ゅ翴皚砰",

                      -1, GR_TFASCII);

              x=0;y=16*3+4;

              GrText(window, gc,x,y, "８９：", -1, GR_TFASCII);

#endif

              GrFlush();

#else /* !HZK_FONT_SUPPORT*/

#if HAVE_BIG5_SUPPORT

              /* ENCODING_BIG5 test*/

              GrText(window, gc,x,y, "眃眃", -1, GR_TFASCII);

#else

#if HAVE_GB2312_SUPPORT

              /* ENCODING_GB2312 test*/

              GrText(window, gc,x,y, "\275\241\275\241", -1, GR_TFASCII);

#else

              /* ASCII test*/

              GrText(window, gc,x,y, "Microwindows", -1, GR_TFASCII);

#endif

#endif

#endif /* HZK_FONT_SUPPORT*/

              GrDestroyFont(fontid);

                if(event.type == GR_EVENT_TYPE_CLOSE_REQ) {

                        GrClose();

                        exit(0);

                }

        }

        GrDestroyRegion(regionid);

        GrClose();

}