wfnttest.c

vxworks下windml的一些demo程序

/* Copyright 2000 Wind River Systems, Inc. All Rights Reserved */

/* wfnttest.c  Font test application for WindML */

/*
modification history
--------------------
01g,22feb02,msr  Backward compatability for input API.
01f,29jan02,rbp  Addition of support for Native Unix.
01e,28aug01,rbp  Fix for __unix__ macro.
01h,05nov01,gav  Fixed misnamed devIds
01g,05nov01,gav  Change to new registry
01f,05nov01,gav  Change to new registry
01e,09oct01,msr  Ported to new UGL_Q_EVENT architecture.
01d,19dec00,gav  Entry point identical to filename w/o extension.
01c,28nov00,gav  Conditional compilation around metric discrepency flagging.
01b,14nov00,gav  Fixed font line display clearing.
01a,24oct00,gav  Miscellaneous clean-up.
*/

/*
DESCRIPTION
This application opens all of the fonts available and displays them
one at a time.  The user change the font displayed by using the arrow
and page keys.  For fonts that are multibyte/Unicode, the arrow keys,
home, and end keys can be used to display different pages.

Glyphs that may have a metric error are displayed on a colored background.
*/

#include <stdio.h>
#include <ugl/ugl.h>
#include <ugl/uglos.h>
#include <ugl/uglinput.h>
#include <ugl/uglMsg.h>
#include <ugl/uglfont.h>
#include <ugl/uglucode.h>

/* #include <ugl/driver/graphics/generic/udgen.h> */

UGL_LOCAL int windMLTestFont (void);

#define BLACK			(0)
#define BLUE			(1)
#define GREEN			(2)
#define YELLOW			(3)
#define WHITE			(4)


UGL_LOCAL volatile UGL_BOOL stopTest;
UGL_LOCAL int displayHeight, displayWidth;
UGL_LOCAL int bannerHeight;
UGL_LOCAL int x,y;
UGL_LOCAL UGL_DEVICE_ID devId;
UGL_LOCAL UGL_GC_ID gc;
UGL_LOCAL UGL_FONT_ID fontBanner;
UGL_LOCAL UGL_FONT_ID *glyphFontId;
UGL_LOCAL UGL_FONT_METRICS metric;
UGL_LOCAL UGL_INT16 page, maxPage = 255;
UGL_FONT_DRIVER_ID fontDrvId;
UGL_INT16 fontNum, fontCount;
UGL_INPUT_SERVICE_ID inputServiceId;

UGL_LOCAL struct _colorStruct
    {
    UGL_ARGB rgbColor;
    UGL_COLOR uglColor;
    }
colorTable[] =
    {
    { UGL_MAKE_RGB(0, 0, 0), 0},     /* Black */
    { UGL_MAKE_RGB(0, 0, 168), 0},   /* Blue  */
    { UGL_MAKE_RGB(0, 168, 0), 0},   /* Green */
    { UGL_MAKE_RGB(255, 255, 84), 0}, /* Yellow */
    { UGL_MAKE_RGB(255, 255, 255), 0} /* White  */
    };

/*
* This function finds all of the installed fonts and makes them available
* for use by the program.
*/

UGL_LOCAL void acquireFonts(void)
    {
    UGL_STATUS status;
    UGL_FONT_DESC fontDesc;
    UGL_SEARCH_ID fontSrchId;
    UGL_FONT_DEF fontDef;

    /* If these are don't cares, the same font is always returned. */

    UGL_FONT_DESC_PRIORITY fdPriority = {1,2,3,4,5,6};

    /* Find how many fonts we need to track so we can allocate memory. */

    fontCount = 0;
    fontSrchId = uglFontFindFirst(fontDrvId, &fontDesc);

    if (fontSrchId == 0)
        {
        glyphFontId = UGL_NULL;
        return;
        }

    fontCount++;

    for(;;)
        {
        if ((status = uglFontFindNext(fontDrvId, &fontDesc, fontSrchId)) == UGL_STATUS_ERROR)
            {
            printf("The the iterating font finder broke.\n");
            return;       
            }

        if (status == UGL_STATUS_FINISHED)
            break;

        fontCount++;
        }

    uglFontFindClose(fontDrvId,fontSrchId);

    /* Allocate an Id array to hold all of the fonts to be created. */

    if ((glyphFontId = (UGL_FONT_ID *)UGL_MALLOC(fontCount * sizeof(UGL_FONT_ID))) == 0)
        {
        printf("Couldn't allocate the memory for the font ID array.\n");
        return;
        }

    /*
    * At one time we couldn't call uglFontFind from within a First-Next
    * construct, so we did this...
    */

    /* For each font... */

    printf("\n %d fonts found.\n",fontCount);

    for (fontNum = 0; fontNum < fontCount; fontNum++)
        {
        UGL_INT16 i;

        /* Walk the list as far as we need. */

        fontSrchId = uglFontFindFirst(fontDrvId, &fontDesc);

        if (fontSrchId == 0)
            {
            UGL_FREE(glyphFontId);
            glyphFontId = UGL_NULL;
            return;
            }

        i = 0;
        while(i < fontNum)
            {
            if ((status = uglFontFindNext(fontDrvId, &fontDesc, fontSrchId)) == UGL_STATUS_ERROR)
                {
                UGL_FREE(glyphFontId);
                glyphFontId = UGL_NULL;
                printf("The the iterating font finder broke.\n");
                return;       
                }
            i++;
            }

        uglFontFindClose(fontDrvId,fontSrchId);

        if (uglFontFind(fontDrvId, &fontDesc, &fdPriority, &fontDef) == UGL_STATUS_ERROR) 
            {
            UGL_FREE(glyphFontId);
            glyphFontId = UGL_NULL;
            printf("The the font finder broke.\n");
            printf("fontNum = %d\n",fontNum);
            return;
            }

        if ((glyphFontId[fontNum] = uglFontCreate(fontDrvId, &fontDef)) == UGL_NULL)
            {
            UGL_FREE(glyphFontId);
            glyphFontId = UGL_NULL;
            printf("The the font maker broke.\n");
            return;
            }
        }
    }

/* Put a page of glyphs on the screen. */

UGL_LOCAL void pagePaint (void)
    {
    UGL_SIZE textWidth, textHeight;
    UGL_SIZE fontWidth, fontHeight, cellWidth, cellHeight;
    UGL_WCHAR output[] = { 0, 0 };
    UGL_SIZE ix, iy;
    UGL_BOOL wide;
    char snum[80];

    uglBackgroundColorSet(gc, colorTable[BLACK].uglColor);
    uglForegroundColorSet(gc, colorTable[BLACK].uglColor);
    uglRectangle(gc,0,bannerHeight, displayWidth - 1, displayHeight - 1);

    /* The 'metric' of a font includes its height, width, name, etc. */

    uglFontSet(gc, glyphFontId[fontNum]);
    if (uglFontMetricsGet(glyphFontId[fontNum], &metric) != 0)
        {
        printf("uglFontMetricsGet failed.\n");
        return;
        }

    /* Use the font's information for formating the display of glyphs. */

    fontWidth  = metric.maxAdvance;
    fontHeight = metric.maxAscent + metric.maxDescent;
    cellWidth  = fontWidth + 4;
    cellHeight = fontHeight + 4;

    /* Test to see if the driver supports wide character sets. */

    output[0] = 'M';
    if (uglTextSizeGetW(glyphFontId[fontNum], &textWidth, &textHeight, 1, output) == UGL_STATUS_ERROR)
        {
        wide = UGL_FALSE;
        output[0] = 0;
        }
    else
        {
        wide = UGL_TRUE;

        /*
        * If the driver and the font support wide character sets, then use
        * page value.
        */

        output[0] = 0;
        output[0] |= page << 8;
        }

    uglForegroundColorSet(gc, colorTable[GREEN].uglColor);

    /* Draw the grid to contain the glyphs. */

    for (iy = 0; iy <= 16; iy++)
        uglLine(gc, 0,iy * cellHeight + (bannerHeight << 1) + 3, 16 * cellWidth, iy * cellHeight + (bannerHeight << 1) + 3);

    for (ix = 0; ix <= 16; ix++)
        uglLine(gc, ix * cellWidth, (bannerHeight << 1) + 3, ix * cellWidth, 16 * cellHeight + (bannerHeight << 1) + 3);

    uglForegroundColorSet(gc, colorTable[WHITE].uglColor);

    /* Draw the glyphs */

    for (iy = 0; iy < 16; iy++)
        for (ix = 0; ix < 16; ix++)
            {

            /* Check the font itself for any metric errors. */

            if (wide)
                uglTextSizeGetW(glyphFontId[fontNum], &textWidth, &textHeight, 1, output);
            else 
                uglTextSizeGet(glyphFontId[fontNum], &textWidth, &textHeight, 1, (char *) output);

#if defined(GLYPH_METRIC_FLAGGING)
            if (textWidth > fontWidth || textHeight > fontHeight ||
                textHeight < 0 || textWidth < 0)
                {
                uglForegroundColorSet(gc, colorTable[GREEN].uglColor);
                uglBackgroundColorSet(gc, colorTable[YELLOW].uglColor);
                uglRectangle(gc, ix * cellWidth, iy * cellHeight + (bannerHeight << 1) + 3,
                                 (ix + 1) * cellWidth, (iy + 1) * cellHeight + (bannerHeight << 1) + 3);
                uglForegroundColorSet(gc, colorTable[BLACK].uglColor);
                if (wide)
                    uglTextDrawW(gc, ix * cellWidth + 2, iy * cellHeight + (bannerHeight << 1) + 5, 1, output);
                else 
                    uglTextDraw(gc, ix * cellWidth + 2, iy * cellHeight + (bannerHeight << 1) + 5, 1, (char *) output);
                uglBackgroundColorSet(gc, colorTable[BLACK].uglColor);
                uglForegroundColorSet(gc, colorTable[WHITE].uglColor);
                }
            else
#endif
                {
                if (wide)
                    uglTextDrawW(gc, ix * cellWidth + 2, iy * cellHeight + (bannerHeight << 1) + 5, 1, output);
                else 
                    uglTextDraw(gc, ix * cellWidth + 2, iy * cellHeight + (bannerHeight << 1) + 5, 1, (char *) output);
                }

            if (wide)
                output[0]++;
            else
                ((char *)output)[0]++;
            }