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opt / alt / libicu / usr / share / doc / alt-libicu-devel / samples / layout /

?? ..
?? FontMap.GDI(426 B)
?? FontMap.Gnome(392 B)
?? FontMap.cpp(7.34 KB)
?? FontMap.h(1.84 KB)
?? FontTableCache.cpp(2.37 KB)
?? FontTableCache.h(1.06 KB)
?? GDIFontInstance.cpp(9.6 KB)
?? GDIFontInstance.h(3.6 KB)
?? GDIFontMap.cpp(1.32 KB)
?? GDIFontMap.h(1.23 KB)
?? GDIGUISupport.cpp(862 B)
?? GDIGUISupport.h(949 B)
?? GUISupport.h(890 B)
?? GnomeFontInstance.cpp(5.43 KB)
?? GnomeFontInstance.h(3.79 KB)
?? GnomeFontMap.cpp(1.39 KB)
?? GnomeFontMap.h(1.21 KB)
?? GnomeGUISupport.cpp(1.05 KB)
?? GnomeGUISupport.h(961 B)
?? LayoutSample.rc(3.37 KB)
?? Makefile(2.92 KB)
?? Makefile.in(2.92 KB)
?? RenderingSurface.h(1.09 KB)
?? Sample.txt(1.66 KB)
?? ScriptCompositeFontInstance.cpp(3.2 KB)
?? ScriptCompositeFontInstance.h(6.15 KB)
?? Surface.cpp(892 B)
?? Surface.h(519 B)
?? UnicodeReader.cpp(4.1 KB)
?? UnicodeReader.h(999 B)
?? arraymem.h(646 B)
?? cgnomelayout.c(8.45 KB)
?? clayout.c(9.82 KB)
?? cmaps.cpp(5.3 KB)
?? cmaps.h(2.06 KB)
?? gdiglue.cpp(1.67 KB)
?? gdiglue.h(983 B)
?? gnomeglue.cpp(1.64 KB)
?? gnomeglue.h(986 B)
?? gnomelayout.cpp(8.5 KB)
?? gsupport.h(370 B)
?? layout.cpp(9.8 KB)
?? layout.sln(1.17 KB)
?? layout.vcxproj(13.15 KB)
?? layout.vcxproj.filters(3.06 KB)
?? paragraph.cpp(7.58 KB)
?? paragraph.h(2.18 KB)
?? pflow.c(9.27 KB)
?? pflow.h(940 B)
?? readme.html(7.32 KB)
?? resource.h(907 B)
?? rsurface.cpp(712 B)
?? rsurface.h(528 B)
?? sfnt.h(4.9 KB)
?? ucreader.cpp(509 B)
?? ucreader.h(422 B)

Editing: FontMap.cpp

/*
 ******************************************************************************
 * © 2016 and later: Unicode, Inc. and others.                    *
 * License & terms of use: http://www.unicode.org/copyright.html#License      *
 ******************************************************************************
 ******************************************************************************
 * Copyright (C) 1998-2006, International Business Machines Corporation and   *
 * others. All Rights Reserved.                                               *
 ******************************************************************************
 */

#include <stdio.h>
#include <string.h>
#include <ctype.h>

#include "unicode/utypes.h"
#include "unicode/uscript.h"

#include "layout/LETypes.h"
#include "layout/LEScripts.h"
#include "layout/LEFontInstance.h"

#include "GUISupport.h"
#include "FontMap.h"

FontMap::FontMap(const char *fileName, le_int16 pointSize, GUISupport *guiSupport, LEErrorCode &status)
    : fPointSize(pointSize), fFontCount(0), fAscent(0), fDescent(0), fLeading(0), fGUISupport(guiSupport)
{
    le_int32 defaultFont = -1, i, script;
    le_bool haveFonts = FALSE;

/**/
    for (i = 0; i < scriptCodeCount; i += 1) {
        fFontIndices[i] = -1;
        fFontNames[i] = NULL;
        fFontInstances[i] = NULL;
    }
 /**/

if (LE_FAILURE(status)) {
        return;
    }

char *c, *scriptName, *fontName, *line, buffer[BUFFER_SIZE];
    FILE *file;

file = fopen(fileName, "r");

if (file == NULL) {
        sprintf(errorMessage, "Could not open the font map file: %s.", fileName);
        fGUISupport->postErrorMessage(errorMessage, "Font Map Error");
        status = LE_FONT_FILE_NOT_FOUND_ERROR;
        return;
    }

while (fgets(buffer, BUFFER_SIZE, file) != NULL) {
        UScriptCode scriptCode;
        UErrorCode scriptStatus = U_ZERO_ERROR;

line = strip(buffer);
        if (line[0] == '#' || line[0] == 0) {
            continue;
        }

c = strchr(line, ':');
        c[0] = 0;

fontName   = strip(&c[1]);
        scriptName = strip(line);

if (strcmp(scriptName, "DEFAULT") == 0) {
            defaultFont = getFontIndex(fontName);
            haveFonts = TRUE;
            continue;
        }

le_int32 fillCount = uscript_getCode(scriptName, &scriptCode, 1, &scriptStatus);

if (U_FAILURE(scriptStatus) || fillCount <= 0 ||
            scriptStatus == U_USING_FALLBACK_WARNING || scriptStatus == U_USING_DEFAULT_WARNING) {
            sprintf(errorMessage, "The script name %s is invalid.", line);
            fGUISupport->postErrorMessage(errorMessage, "Font Map Error");
            continue;
        }

script = (le_int32) scriptCode;

if (fFontIndices[script] >= 0) {
            // FIXME: complain that this is a duplicate entry and bail (?)
            fFontIndices[script] = -1;
        }

fFontIndices[script] = getFontIndex(fontName);
        haveFonts = TRUE;
    }

if (defaultFont >= 0) {
        for (script = 0; script < scriptCodeCount; script += 1) {
            if (fFontIndices[script] < 0) {
                fFontIndices[script] = defaultFont;
            }
        }
    }

if (! haveFonts) {
        sprintf(errorMessage, "The font map file %s does not contain any valid scripts.", fileName);
        fGUISupport->postErrorMessage(errorMessage, "Font Map Error");
        status = LE_ILLEGAL_ARGUMENT_ERROR;
    }

fclose(file);
}

FontMap::~FontMap()
{
    le_int32 font;

for (font = 0; font < fFontCount; font += 1) {
        if (fFontNames[font] != NULL) {
            delete[] (char *) fFontNames[font];
        }
    }

for (font = 0; font < fFontCount; font += 1) {
        if (fFontInstances[font] != NULL) {
            delete fFontInstances[font];
        }
    }
}

le_int32 FontMap::getFontIndex(const char *fontName)
{
    le_int32 index;

for (index = 0; index < fFontCount; index += 1) {
        if (strcmp(fontName, fFontNames[index]) == 0) {
            return index;
        }
    }

if (fFontCount < (le_int32) scriptCodeCount) {
        index = fFontCount++;
    } else {
        // The font name table is full. Since there can
        // only be scriptCodeCount fonts in use at once,
        // there should be at least one that's not being
        // referenced; find it and resue it's index.

for (index = 0; index < fFontCount; index += 1) {
            le_int32 script;

for (script = 0; script < scriptCodeCount; script += 1) {
                if (fFontIndices[script] == index) {
                    break;
                }
            }

if (script >= scriptCodeCount) {
                break;
            }
        }
    }

if (index >= scriptCodeCount) {
        return -1;
    }

le_int32 len = strlen(fontName);
    char *s = new char[len + 1];

fFontNames[index] = strcpy(s, fontName);
    return index;
}

char *FontMap::strip(char *s)
{
    le_int32 start, end, len;

start = 0;
    len = strlen(s);

while (start < len && isspace(s[start])) {
        start += 1;
    }

end = len - 1;

while (end > start && isspace(s[end])) {
        end -= 1;
    }

if (end < len) {
        s[end + 1] = '\0';
    }

return &s[start];
}

const LEFontInstance *FontMap::getScriptFont(le_int32 scriptCode, LEErrorCode &status)
{
    if (LE_FAILURE(status)) {
        return NULL;
    }

if (scriptCode <= -1 || scriptCode >= scriptCodeCount) {
        status = LE_ILLEGAL_ARGUMENT_ERROR;
        return NULL;
    }

le_int32 fontIndex = fFontIndices[scriptCode];

if (fontIndex < 0) {
        sprintf(errorMessage, "No font was set for script %s", uscript_getName((UScriptCode) scriptCode));
        fGUISupport->postErrorMessage(errorMessage, "Font Map Error");
        status = LE_FONT_FILE_NOT_FOUND_ERROR;
        return NULL;
    }

if (fFontInstances[fontIndex] == NULL) {
        fFontInstances[fontIndex] = openFont(fFontNames[fontIndex], fPointSize, status);

if (LE_FAILURE(status)) {
            sprintf(errorMessage, "Could not open font file %s", fFontNames[fontIndex]);
            fGUISupport->postErrorMessage(errorMessage, "Font Map Error");
            return NULL;
        }
    }

return fFontInstances[fontIndex];
}

le_int32 FontMap::getAscent() const
{
    if (fAscent <= 0) {
        ((FontMap *) this)->getMaxMetrics();
    }

return fAscent;
}

le_int32 FontMap::getDescent() const
{
    if (fDescent <= 0) {
        ((FontMap *) this)->getMaxMetrics();
    }

return fDescent;
}

le_int32 FontMap::getLeading() const
{
    if (fLeading <= 0) {
        ((FontMap *) this)->getMaxMetrics();
    }

return fLeading;
}

void FontMap::getMaxMetrics()
{
    for (le_int32 i = 0; i < fFontCount; i += 1) {
        LEErrorCode status = LE_NO_ERROR;
        le_int32 ascent, descent, leading;

if (fFontInstances[i] == NULL) {
            fFontInstances[i] = openFont(fFontNames[i], fPointSize, status);

if (LE_FAILURE(status)) {
                continue;
            }
        }

ascent  = fFontInstances[i]->getAscent();
        descent = fFontInstances[i]->getDescent();
        leading = fFontInstances[i]->getLeading();

if (ascent > fAscent) {
            fAscent = ascent;
        }

if (descent > fDescent) {
            fDescent = descent;
        }

if (leading > fLeading) {
            fLeading = leading;
        }
    }
}

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Editing: FontMap.cpp

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