Java example source code file (awt_Font.cpp)
The awt_Font.cpp Java example source code
/*
* Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include "awt.h"
#include <math.h>
#include "jlong.h"
#include "awt_Font.h"
#include "awt_Toolkit.h"
#include "java_awt_Font.h"
#include "java_awt_FontMetrics.h"
#include "java_awt_Dimension.h"
#include "sun_awt_FontDescriptor.h"
#include "sun_awt_windows_WDefaultFontCharset.h"
#include "sun_awt_windows_WFontPeer.h"
#include "awt_Component.h"
#include "Disposer.h"
/* IMPORTANT! Read the README.JNI file for notes on JNI converted AWT code.
*/
AwtFontCache fontCache;
extern jboolean IsMultiFont(JNIEnv *env, jobject obj)
{
if (obj == NULL) {
return JNI_FALSE;
}
if (env->EnsureLocalCapacity(2))
return JNI_FALSE;
jobject peer = env->CallObjectMethod(obj, AwtFont::peerMID);
if (peer == NULL) {
return JNI_FALSE;
}
jobject fontConfig = env->GetObjectField(peer, AwtFont::fontConfigID);
jboolean result = fontConfig != NULL;
env->DeleteLocalRef(peer);
env->DeleteLocalRef(fontConfig);
return result;
}
extern jstring GetTextComponentFontName(JNIEnv *env, jobject font)
{
DASSERT(font != NULL);
if (env->EnsureLocalCapacity(2)) {
return NULL;
}
jobject peer = env->CallObjectMethod(font, AwtFont::peerMID);
DASSERT(peer != NULL);
jstring textComponentFontName =
(jstring) env->GetObjectField(peer, AwtFont::textComponentFontNameID);
env->DeleteLocalRef(peer);
return textComponentFontName;
}
/************************************************************************
* AwtFont fields
*/
/* sun.awt.windows.WFontMetrics fields */
jfieldID AwtFont::widthsID;
jfieldID AwtFont::ascentID;
jfieldID AwtFont::descentID;
jfieldID AwtFont::leadingID;
jfieldID AwtFont::heightID;
jfieldID AwtFont::maxAscentID;
jfieldID AwtFont::maxDescentID;
jfieldID AwtFont::maxHeightID;
jfieldID AwtFont::maxAdvanceID;
/* java.awt.FontDescriptor fields */
jfieldID AwtFont::nativeNameID;
jfieldID AwtFont::useUnicodeID;
/* java.awt.Font fields */
jfieldID AwtFont::pDataID;
jfieldID AwtFont::nameID;
jfieldID AwtFont::sizeID;
jfieldID AwtFont::styleID;
/* java.awt.FontMetrics fields */
jfieldID AwtFont::fontID;
/* sun.awt.PlatformFont fields */
jfieldID AwtFont::fontConfigID;
jfieldID AwtFont::componentFontsID;
/* sun.awt.windows.WFontPeer fields */
jfieldID AwtFont::textComponentFontNameID;
/* sun.awt.windows.WDefaultFontCharset fields */
jfieldID AwtFont::fontNameID;
/* java.awt.Font methods */
jmethodID AwtFont::peerMID;
/* sun.awt.PlatformFont methods */
jmethodID AwtFont::makeConvertedMultiFontStringMID;
/* sun.awt.PlatformFont methods */
jmethodID AwtFont::getFontMID;
/* java.awt.FontMetrics methods */
jmethodID AwtFont::getHeightMID;
/************************************************************************
* AwtFont methods
*/
AwtFont::AwtFont(int num, JNIEnv *env, jobject javaFont)
{
if (num == 0) { // not multi-font
num = 1;
}
m_hFontNum = num;
m_hFont = new HFONT[num];
for (int i = 0; i < num; i++) {
m_hFont[i] = NULL;
}
m_textInput = -1;
m_ascent = -1;
m_overhang = 0;
}
AwtFont::~AwtFont()
{
delete[] m_hFont;
}
void AwtFont::Dispose() {
for (int i = 0; i < m_hFontNum; i++) {
HFONT font = m_hFont[i];
if (font != NULL && fontCache.Search(font)) {
fontCache.Remove(font);
/* NOTE: delete of windows HFONT happens in FontCache::Remove
only when the final reference to the font is disposed */
} else if (font != NULL) {
// if font was not in cache, its not shared and we delete it now
DASSERT(::GetObjectType(font) == OBJ_FONT);
VERIFY(::DeleteObject(font));
}
m_hFont[i] = NULL;
}
AwtObject::Dispose();
}
static void pDataDisposeMethod(JNIEnv *env, jlong pData)
{
TRY_NO_VERIFY;
AwtObject::_Dispose((PDATA)pData);
CATCH_BAD_ALLOC;
}
AwtFont* AwtFont::GetFont(JNIEnv *env, jobject font,
jint angle, jfloat awScale)
{
jlong pData = env->GetLongField(font, AwtFont::pDataID);
AwtFont* awtFont = (AwtFont*)jlong_to_ptr(pData);
if (awtFont != NULL) {
return awtFont;
}
awtFont = Create(env, font, angle, awScale);
env->SetLongField(font, AwtFont::pDataID,
reinterpret_cast<jlong>(awtFont));
return awtFont;
}
// Get suitable CHARSET from charset string provided by font configuration.
static int GetNativeCharset(LPCWSTR name)
{
if (wcsstr(name, L"ANSI_CHARSET"))
return ANSI_CHARSET;
if (wcsstr(name, L"DEFAULT_CHARSET"))
return DEFAULT_CHARSET;
if (wcsstr(name, L"SYMBOL_CHARSET") || wcsstr(name, L"WingDings"))
return SYMBOL_CHARSET;
if (wcsstr(name, L"SHIFTJIS_CHARSET"))
return SHIFTJIS_CHARSET;
if (wcsstr(name, L"GB2312_CHARSET"))
return GB2312_CHARSET;
if (wcsstr(name, L"HANGEUL_CHARSET"))
return HANGEUL_CHARSET;
if (wcsstr(name, L"CHINESEBIG5_CHARSET"))
return CHINESEBIG5_CHARSET;
if (wcsstr(name, L"OEM_CHARSET"))
return OEM_CHARSET;
if (wcsstr(name, L"JOHAB_CHARSET"))
return JOHAB_CHARSET;
if (wcsstr(name, L"HEBREW_CHARSET"))
return HEBREW_CHARSET;
if (wcsstr(name, L"ARABIC_CHARSET"))
return ARABIC_CHARSET;
if (wcsstr(name, L"GREEK_CHARSET"))
return GREEK_CHARSET;
if (wcsstr(name, L"TURKISH_CHARSET"))
return TURKISH_CHARSET;
if (wcsstr(name, L"VIETNAMESE_CHARSET"))
return VIETNAMESE_CHARSET;
if (wcsstr(name, L"THAI_CHARSET"))
return THAI_CHARSET;
if (wcsstr(name, L"EASTEUROPE_CHARSET"))
return EASTEUROPE_CHARSET;
if (wcsstr(name, L"RUSSIAN_CHARSET"))
return RUSSIAN_CHARSET;
if (wcsstr(name, L"MAC_CHARSET"))
return MAC_CHARSET;
if (wcsstr(name, L"BALTIC_CHARSET"))
return BALTIC_CHARSET;
return ANSI_CHARSET;
}
AwtFont* AwtFont::Create(JNIEnv *env, jobject font, jint angle, jfloat awScale)
{
int fontSize = env->GetIntField(font, AwtFont::sizeID);
int fontStyle = env->GetIntField(font, AwtFont::styleID);
AwtFont* awtFont = NULL;
jobjectArray compFont = NULL;
int cfnum;
try {
if (env->EnsureLocalCapacity(3) < 0)
return 0;
if (IsMultiFont(env, font)) {
compFont = GetComponentFonts(env, font);
cfnum = env->GetArrayLength(compFont);
} else {
compFont = NULL;
cfnum = 0;
}
LPCWSTR wName;
awtFont = new AwtFont(cfnum, env, font);
awtFont->textAngle = angle;
awtFont->awScale = awScale;
if (cfnum > 0) {
// Ask peer class for the text component font name
jstring jTextComponentFontName = GetTextComponentFontName(env, font);
LPCWSTR textComponentFontName = JNU_GetStringPlatformChars(env, jTextComponentFontName, NULL);
awtFont->m_textInput = -1;
for (int i = 0; i < cfnum; i++) {
// nativeName is a pair of platform fontname and its charset
// tied with a comma; "Times New Roman,ANSI_CHARSET".
jobject fontDescriptor = env->GetObjectArrayElement(compFont,
i);
jstring nativeName =
(jstring)env->GetObjectField(fontDescriptor,
AwtFont::nativeNameID);
wName = JNU_GetStringPlatformChars(env, nativeName, NULL);
DASSERT(wName);
//On NT platforms, if the font is not Symbol or Dingbats
//use "W" version of Win32 APIs directly, info the FontDescription
//no need to convert characters from Unicode to locale encodings.
if (GetNativeCharset(wName) != SYMBOL_CHARSET) {
env->SetBooleanField(fontDescriptor, AwtFont::useUnicodeID, TRUE);
}
// Check to see if this font is suitable for input
// on AWT TextComponent
if ((awtFont->m_textInput == -1) &&
(textComponentFontName != NULL) &&
(wcscmp(wName, textComponentFontName) == 0)) {
awtFont->m_textInput = i;
}
HFONT hfonttmp = CreateHFont(const_cast<LPWSTR>(wName), fontStyle, fontSize,
angle, awScale);
awtFont->m_hFont[i] = hfonttmp;
JNU_ReleaseStringPlatformChars(env, nativeName, wName);
env->DeleteLocalRef(fontDescriptor);
env->DeleteLocalRef(nativeName);
}
if (awtFont->m_textInput == -1) {
// no text component font was identified, so default
// to first component
awtFont->m_textInput = 0;
}
JNU_ReleaseStringPlatformChars(env, jTextComponentFontName, textComponentFontName);
env->DeleteLocalRef(jTextComponentFontName);
} else {
// Instantiation for English version.
jstring fontName = (jstring)env->GetObjectField(font,
AwtFont::nameID);
wName = JNU_GetStringPlatformChars(env, fontName, NULL);
WCHAR* wEName;
if (!wcscmp(wName, L"Helvetica") || !wcscmp(wName, L"SansSerif")) {
wEName = L"Arial";
} else if (!wcscmp(wName, L"TimesRoman") ||
!wcscmp(wName, L"Serif")) {
wEName = L"Times New Roman";
} else if (!wcscmp(wName, L"Courier") ||
!wcscmp(wName, L"Monospaced")) {
wEName = L"Courier New";
} else if (!wcscmp(wName, L"Dialog")) {
wEName = L"MS Sans Serif";
} else if (!wcscmp(wName, L"DialogInput")) {
wEName = L"MS Sans Serif";
} else if (!wcscmp(wName, L"ZapfDingbats")) {
wEName = L"WingDings";
} else
wEName = L"Arial";
awtFont->m_textInput = 0;
awtFont->m_hFont[0] = CreateHFont(wEName, fontStyle, fontSize,
angle, awScale);
JNU_ReleaseStringPlatformChars(env, fontName, wName);
env->DeleteLocalRef(fontName);
}
/* The several callers of this method also set the pData field.
* That's unnecessary but harmless duplication. However we definitely
* want only one disposer record.
*/
env->SetLongField(font, AwtFont::pDataID,
reinterpret_cast<jlong>(awtFont));
Disposer_AddRecord(env, font, pDataDisposeMethod,
reinterpret_cast<jlong>(awtFont));
} catch (...) {
env->DeleteLocalRef(compFont);
throw;
}
env->DeleteLocalRef(compFont);
return awtFont;
}
static void strip_tail(wchar_t* text, wchar_t* tail) { // strips tail and any possible whitespace before it from the end of text
if (wcslen(text)<=wcslen(tail)) {
return;
}
wchar_t* p = text+wcslen(text)-wcslen(tail);
if (!wcscmp(p, tail)) {
while(p>text && iswspace(*(p-1)))
p--;
*p = 0;
}
}
static HFONT CreateHFont_sub(LPCWSTR name, int style, int height,
int angle=0, float awScale=1.0f)
{
LOGFONTW logFont;
logFont.lfWidth = 0;
logFont.lfEscapement = angle;
logFont.lfOrientation = angle;
logFont.lfUnderline = FALSE;
logFont.lfStrikeOut = FALSE;
logFont.lfCharSet = GetNativeCharset(name);
if (angle == 0 && awScale == 1.0f) {
logFont.lfOutPrecision = OUT_DEFAULT_PRECIS;
} else {
logFont.lfOutPrecision = OUT_TT_ONLY_PRECIS;
}
logFont.lfClipPrecision = CLIP_DEFAULT_PRECIS;
logFont.lfQuality = DEFAULT_QUALITY;
logFont.lfPitchAndFamily = DEFAULT_PITCH;
// Set style
logFont.lfWeight = (style & java_awt_Font_BOLD) ? FW_BOLD : FW_NORMAL;
logFont.lfItalic = (style & java_awt_Font_ITALIC) != 0;
logFont.lfUnderline = 0;//(style & java_awt_Font_UNDERLINE) != 0;
// Get point size
logFont.lfHeight = -height;
// Set font name
WCHAR tmpname[80];
wcscpy(tmpname, name);
WCHAR* delimit = wcschr(tmpname, L',');
if (delimit != NULL)
*delimit = L'\0'; // terminate the string after the font name.
// strip "Bold" and "Italic" from the end of the name
strip_tail(tmpname,L""); //strip possible trailing whitespace
strip_tail(tmpname,L"Italic");
strip_tail(tmpname,L"Bold");
wcscpy(&(logFont.lfFaceName[0]), tmpname);
HFONT hFont = ::CreateFontIndirect(&logFont);
DASSERT(hFont != NULL);
// get a expanded or condensed version if its specified.
if (awScale != 1.0f) {
HDC hDC = ::GetDC(0);
HFONT oldFont = (HFONT)::SelectObject(hDC, hFont);
TEXTMETRIC tm;
DWORD avgWidth;
GetTextMetrics(hDC, &tm);
oldFont = (HFONT)::SelectObject(hDC, oldFont);
if (oldFont != NULL) { // should be the same as hFont
VERIFY(::DeleteObject(oldFont));
}
avgWidth = tm.tmAveCharWidth;
logFont.lfWidth = (LONG)((fabs)(avgWidth*awScale));
hFont = ::CreateFontIndirect(&logFont);
DASSERT(hFont != NULL);
VERIFY(::ReleaseDC(0, hDC));
}
return hFont;
}
HFONT AwtFont::CreateHFont(WCHAR* name, int style, int height,
int angle, float awScale)
{
WCHAR longName[80];
// 80 > (max face name(=30) + strlen("CHINESEBIG5_CHARSET"))
// longName doesn't have to be printable. So, it is OK not to convert.
wsprintf(longName, L"%ls-%d-%d", name, style, height);
HFONT hFont = NULL;
// only cache & share unrotated, unexpanded/uncondensed fonts
if (angle == 0 && awScale == 1.0f) {
hFont = fontCache.Lookup(longName);
if (hFont != NULL) {
fontCache.IncRefCount(hFont);
return hFont;
}
}
hFont = CreateHFont_sub(name, style, height, angle, awScale);
if (angle == 0 && awScale == 1.0f) {
fontCache.Add(longName, hFont);
}
return hFont;
}
void AwtFont::Cleanup()
{
fontCache.Clear();
}
void AwtFont::SetupAscent(AwtFont* font)
{
HDC hDC = ::GetDC(0);
DASSERT(hDC != NULL);
HGDIOBJ oldFont = ::SelectObject(hDC, font->GetHFont());
TEXTMETRIC metrics;
VERIFY(::GetTextMetrics(hDC, &metrics));
font->SetAscent(metrics.tmAscent);
::SelectObject(hDC, oldFont);
VERIFY(::ReleaseDC(0, hDC));
}
void AwtFont::LoadMetrics(JNIEnv *env, jobject fontMetrics)
{
if (env->EnsureLocalCapacity(3) < 0)
return;
jintArray widths = env->NewIntArray(256);
if (widths == NULL) {
/* no local refs to delete yet. */
return;
}
jobject font = env->GetObjectField(fontMetrics, AwtFont::fontID);
AwtFont* awtFont = AwtFont::GetFont(env, font);
if (!awtFont) {
/* failed to get font */
return;
}
HDC hDC = ::GetDC(0);
DASSERT(hDC != NULL);
HGDIOBJ oldFont = ::SelectObject(hDC, awtFont->GetHFont());
TEXTMETRIC metrics;
VERIFY(::GetTextMetrics(hDC, &metrics));
awtFont->m_ascent = metrics.tmAscent;
int ascent = metrics.tmAscent;
int descent = metrics.tmDescent;
int leading = metrics.tmExternalLeading;
env->SetIntField(fontMetrics, AwtFont::ascentID, ascent);
env->SetIntField(fontMetrics, AwtFont::descentID, descent);
env->SetIntField(fontMetrics, AwtFont::leadingID, leading);
env->SetIntField(fontMetrics, AwtFont::heightID, metrics.tmAscent +
metrics.tmDescent + leading);
env->SetIntField(fontMetrics, AwtFont::maxAscentID, ascent);
env->SetIntField(fontMetrics, AwtFont::maxDescentID, descent);
int maxHeight = ascent + descent + leading;
env->SetIntField(fontMetrics, AwtFont::maxHeightID, maxHeight);
int maxAdvance = metrics.tmMaxCharWidth;
env->SetIntField(fontMetrics, AwtFont::maxAdvanceID, maxAdvance);
awtFont->m_overhang = metrics.tmOverhang;
jint intWidths[256];
memset(intWidths, 0, 256 * sizeof(int));
VERIFY(::GetCharWidth(hDC, metrics.tmFirstChar,
min(metrics.tmLastChar, 255),
(int *)&intWidths[metrics.tmFirstChar]));
env->SetIntArrayRegion(widths, 0, 256, intWidths);
env->SetObjectField(fontMetrics, AwtFont::widthsID, widths);
// Get font metrics on remaining fonts (if multifont).
for (int j = 1; j < awtFont->GetHFontNum(); j++) {
::SelectObject(hDC, awtFont->GetHFont(j));
VERIFY(::GetTextMetrics(hDC, &metrics));
env->SetIntField(fontMetrics, AwtFont::maxAscentID,
ascent = max(ascent, metrics.tmAscent));
env->SetIntField(fontMetrics, AwtFont::maxDescentID,
descent = max(descent, metrics.tmDescent));
env->SetIntField(fontMetrics, AwtFont::maxHeightID,
maxHeight = max(maxHeight,
metrics.tmAscent +
metrics.tmDescent +
metrics.tmExternalLeading));
env->SetIntField(fontMetrics, AwtFont::maxAdvanceID,
maxAdvance = max(maxAdvance, metrics.tmMaxCharWidth));
}
VERIFY(::SelectObject(hDC, oldFont));
VERIFY(::ReleaseDC(0, hDC));
env->DeleteLocalRef(font);
env->DeleteLocalRef(widths);
}
SIZE AwtFont::TextSize(AwtFont* font, int columns, int rows)
{
HDC hDC = ::GetDC(0);
DASSERT(hDC != NULL);
HGDIOBJ oldFont = ::SelectObject(hDC, (font == NULL)
? ::GetStockObject(SYSTEM_FONT)
: font->GetHFont());
SIZE size;
VERIFY(::GetTextExtentPoint(hDC,
TEXT("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"), 52, &size));
VERIFY(::SelectObject(hDC, oldFont));
VERIFY(::ReleaseDC(0, hDC));
size.cx = size.cx * columns / 52;
size.cy = size.cy * rows;
return size;
}
int AwtFont::getFontDescriptorNumber(JNIEnv *env, jobject font,
jobject fontDescriptor)
{
int i, num;
jobject refFontDescriptor;
jobjectArray array;
if (env->EnsureLocalCapacity(2) < 0)
return 0;
if (IsMultiFont(env, font)) {
array = GetComponentFonts(env, font);
num = env->GetArrayLength(array);
} else {
array = NULL;
num = 0;
}
for (i = 0; i < num; i++){
// Trying to identify the same FontDescriptor by comparing the
// pointers.
refFontDescriptor = env->GetObjectArrayElement(array, i);
if (env->IsSameObject(refFontDescriptor, fontDescriptor)) {
env->DeleteLocalRef(refFontDescriptor);
env->DeleteLocalRef(array);
return i;
}
env->DeleteLocalRef(refFontDescriptor);
}
env->DeleteLocalRef(array);
return 0; // Not found. Use default.
}
/*
* This is a faster version of the same function, which does most of
* the work in Java.
*/
SIZE AwtFont::DrawStringSize_sub(jstring str, HDC hDC,
jobject font, long x, long y, BOOL draw,
UINT codePage)
{
SIZE size, temp;
size.cx = size.cy = 0;
if (str == NULL) {
return size;
}
JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
if (env->EnsureLocalCapacity(3) < 0)
return size;
jobjectArray array = 0;
int arrayLength = 0;
if (env->GetStringLength(str) == 0) {
return size;
}
//Init AwtFont object, which will "create" a AwtFont object if necessry,
//before calling makeconvertedMultiFontString(), otherwise, the FontDescriptor's
//"useUnicode" field might not be initialized correctly (font in Menu Component,
//for example").
AwtFont* awtFont = AwtFont::GetFont(env, font);
if (IsMultiFont(env, font)) {
jobject peer = env->CallObjectMethod(font, AwtFont::peerMID);
array = (jobjectArray)(env->CallObjectMethod(
peer, AwtFont::makeConvertedMultiFontStringMID, str));
DASSERT(!safe_ExceptionOccurred(env));
if (array != NULL) {
arrayLength = env->GetArrayLength(array);
}
env->DeleteLocalRef(peer);
} else {
array = NULL;
arrayLength = 0;
}
HFONT oldFont = (HFONT)::SelectObject(hDC, awtFont->GetHFont());
if (arrayLength == 0) {
int length = env->GetStringLength(str);
LPCWSTR strW = JNU_GetStringPlatformChars(env, str, NULL);
VERIFY(::SelectObject(hDC, awtFont->GetHFont()));
if (AwtComponent::GetRTLReadingOrder()){
VERIFY(!draw || ::ExtTextOut(hDC, x, y, ETO_RTLREADING, NULL,
strW, length, NULL));
} else {
VERIFY(!draw || ::TextOut(hDC, x, y, strW, length));
}
VERIFY(::GetTextExtentPoint32(hDC, strW, length, &size));
JNU_ReleaseStringPlatformChars(env, str, strW);
} else {
for (int i = 0; i < arrayLength; i = i + 2) {
jobject fontDescriptor = env->GetObjectArrayElement(array, i);
if (fontDescriptor == NULL) {
break;
}
jbyteArray convertedBytes =
(jbyteArray)env->GetObjectArrayElement(array, i + 1);
if (convertedBytes == NULL) {
env->DeleteLocalRef(fontDescriptor);
break;
}
int fdIndex = getFontDescriptorNumber(env, font, fontDescriptor);
VERIFY(::SelectObject(hDC, awtFont->GetHFont(fdIndex)));
/*
* The strange-looking code that follows this comment is
* the result of upstream optimizations. In the array of
* alternating font descriptor and buffers, the buffers
* contain their length in the first four bytes, a la
* Pascal arrays.
*
* Note: the buffer MUST be unsigned, or VC++ will sign
* extend buflen and bad things will happen.
*/
unsigned char* buffer = NULL;
jboolean unicodeUsed = env->GetBooleanField(fontDescriptor, AwtFont::useUnicodeID);
try {
buffer = (unsigned char *)
env->GetPrimitiveArrayCritical(convertedBytes, 0);
int buflen = (buffer[0] << 24) | (buffer[1] << 16) |
(buffer[2] << 8) | buffer[3];
DASSERT(buflen >= 0);
/*
* the offsetBuffer, on the other hand, must be signed because
* TextOutA and GetTextExtentPoint32A expect it.
*/
char* offsetBuffer = (char *)(buffer + 4);
if (unicodeUsed) {
VERIFY(!draw || ::TextOutW(hDC, x, y, (LPCWSTR)offsetBuffer, buflen / 2));
VERIFY(::GetTextExtentPoint32W(hDC, (LPCWSTR)offsetBuffer, buflen / 2, &temp));
}
else {
VERIFY(!draw || ::TextOutA(hDC, x, y, offsetBuffer, buflen));
VERIFY(::GetTextExtentPoint32A(hDC, offsetBuffer, buflen, &temp));
}
} catch (...) {
if (buffer != NULL) {
env->ReleasePrimitiveArrayCritical(convertedBytes, buffer,
0);
}
throw;
}
env->ReleasePrimitiveArrayCritical(convertedBytes, buffer, 0);
if (awtFont->textAngle == 0) {
x += temp.cx;
} else {
// account for rotation of the text used in 2D printing.
double degrees = 360.0 - (awtFont->textAngle/10.0);
double rads = degrees/(180.0/3.1415926535);
double dx = temp.cx * cos(rads);
double dy = temp.cx * sin(rads);
x += (long)floor(dx+0.5);
y += (long)floor(dy+0.5);
}
size.cx += temp.cx;
size.cy = (size.cy < temp.cy) ? temp.cy : size.cy;
env->DeleteLocalRef(fontDescriptor);
env->DeleteLocalRef(convertedBytes);
}
}
env->DeleteLocalRef(array);
VERIFY(::SelectObject(hDC, oldFont));
return size;
}
/************************************************************************
* WFontMetrics native methods
*/
extern "C" {
/*
* Class: sun_awt_windows_WFontMetrics
* Method: stringWidth
* Signature: (Ljava/lang/String;)I
*/
JNIEXPORT jint JNICALL
Java_sun_awt_windows_WFontMetrics_stringWidth(JNIEnv *env, jobject self,
jstring str)
{
TRY;
if (str == NULL) {
JNU_ThrowNullPointerException(env, "str argument");
return NULL;
}
HDC hDC = ::GetDC(0); DASSERT(hDC != NULL);
jobject font = env->GetObjectField(self, AwtFont::fontID);
long ret = AwtFont::getMFStringWidth(hDC, font, str);
VERIFY(::ReleaseDC(0, hDC));
return ret;
CATCH_BAD_ALLOC_RET(0);
}
/*
* Class: sun_awt_windows_WFontMetrics
* Method: charsWidth
* Signature: ([CII)I
*/
JNIEXPORT jint JNICALL
Java_sun_awt_windows_WFontMetrics_charsWidth(JNIEnv *env, jobject self,
jcharArray str,
jint off, jint len)
{
TRY;
if (str == NULL) {
JNU_ThrowNullPointerException(env, "str argument");
return NULL;
}
if ((len < 0) || (off < 0) || (len + off > (env->GetArrayLength(str)))) {
JNU_ThrowArrayIndexOutOfBoundsException(env, "off/len argument");
return NULL;
}
jchar *strp = new jchar[len];
env->GetCharArrayRegion(str, off, len, strp);
jstring jstr = env->NewString(strp, len);
jint result = Java_sun_awt_windows_WFontMetrics_stringWidth(env, self,
jstr);
delete [] strp;
return result;
CATCH_BAD_ALLOC_RET(0);
}
/*
* Class: sun_awt_windows_WFontMetrics
* Method: bytesWidth
* Signature: ([BII)I
*/
JNIEXPORT jint JNICALL
Java_sun_awt_windows_WFontMetrics_bytesWidth(JNIEnv *env, jobject self,
jbyteArray str,
jint off, jint len)
{
TRY;
if (str == NULL) {
JNU_ThrowNullPointerException(env, "bytes argument");
return NULL;
}
if ((len < 0) || (off < 0) || (len + off > (env->GetArrayLength(str)))) {
JNU_ThrowArrayIndexOutOfBoundsException(env, "off or len argument");
return NULL;
}
char *pStrBody = NULL;
jint result = 0;
try {
jintArray array = (jintArray)env->GetObjectField(self,
AwtFont::widthsID);
pStrBody = (char *)env->GetPrimitiveArrayCritical(str, 0);
char *pStr = pStrBody + off;
jint *widths = NULL;
try {
widths = (jint *)env->GetPrimitiveArrayCritical(array, 0);
for (; len; len--) {
result += widths[*pStr++];
}
} catch (...) {
if (widths != NULL) {
env->ReleasePrimitiveArrayCritical(array, widths, 0);
}
throw;
}
env->ReleasePrimitiveArrayCritical(array, widths, 0);
} catch (...) {
if (pStrBody != NULL) {
env->ReleasePrimitiveArrayCritical(str, pStrBody, 0);
}
throw;
}
env->ReleasePrimitiveArrayCritical(str, pStrBody, 0);
return result;
CATCH_BAD_ALLOC_RET(0);
}
/*
* Class: sun_awt_windows_WFontMetrics
* Method: init
* Signature: ()V
*/
JNIEXPORT void JNICALL
Java_sun_awt_windows_WFontMetrics_init(JNIEnv *env, jobject self)
{
TRY;
jobject font = env->GetObjectField(self, AwtFont::fontID);
if (font == NULL) {
JNU_ThrowNullPointerException(env, "fontMetrics' font");
return;
}
// This local variable is unused. Is there some subtle side-effect here?
jlong pData = env->GetLongField(font, AwtFont::pDataID);
AwtFont::LoadMetrics(env, self);
CATCH_BAD_ALLOC;
}
/*
* Class: sun_awt_windows_WFontMetrics
* Method: initIDs
* Signature: ()V
*/
JNIEXPORT void JNICALL
Java_sun_awt_windows_WFontMetrics_initIDs(JNIEnv *env, jclass cls)
{
TRY;
AwtFont::widthsID = env->GetFieldID(cls, "widths", "[I");
AwtFont::ascentID = env->GetFieldID(cls, "ascent", "I");
AwtFont::descentID = env->GetFieldID(cls, "descent", "I");
AwtFont::leadingID = env->GetFieldID(cls, "leading", "I");
AwtFont::heightID = env->GetFieldID(cls, "height", "I");
AwtFont::maxAscentID = env->GetFieldID(cls, "maxAscent", "I");
AwtFont::maxDescentID = env->GetFieldID(cls, "maxDescent", "I");
AwtFont::maxHeightID = env->GetFieldID(cls, "maxHeight", "I");
AwtFont::maxAdvanceID = env->GetFieldID(cls, "maxAdvance", "I");
DASSERT(AwtFont::widthsID != NULL);
DASSERT(AwtFont::ascentID != NULL);
DASSERT(AwtFont::descentID != NULL);
DASSERT(AwtFont::leadingID != NULL);
DASSERT(AwtFont::heightID != NULL);
DASSERT(AwtFont::maxAscentID != NULL);
DASSERT(AwtFont::maxDescentID != NULL);
DASSERT(AwtFont::maxHeightID != NULL);
DASSERT(AwtFont::maxAdvanceID != NULL);
CATCH_BAD_ALLOC;
}
} /* extern "C" */
/************************************************************************
* java.awt.Font native methods
*/
extern "C" {
JNIEXPORT void JNICALL
Java_java_awt_Font_initIDs(JNIEnv *env, jclass cls)
{
TRY;
AwtFont::peerMID = env->GetMethodID(cls, "getPeer",
"()Ljava/awt/peer/FontPeer;");
AwtFont::pDataID = env->GetFieldID(cls, "pData", "J");
AwtFont::nameID = env->GetFieldID(cls, "name", "Ljava/lang/String;");
AwtFont::sizeID = env->GetFieldID(cls, "size", "I");
AwtFont::styleID = env->GetFieldID(cls, "style", "I");
AwtFont::getFontMID =
env->GetStaticMethodID(cls, "getFont",
"(Ljava/lang/String;)Ljava/awt/Font;");
DASSERT(AwtFont::peerMID != NULL);
DASSERT(AwtFont::pDataID != NULL);
DASSERT(AwtFont::nameID != NULL);
DASSERT(AwtFont::sizeID != NULL);
DASSERT(AwtFont::styleID != NULL);
DASSERT(AwtFont::getFontMID != NULL);
CATCH_BAD_ALLOC;
}
} /* extern "C" */
/************************************************************************
* java.awt.FontMetric native methods
*/
extern "C" {
JNIEXPORT void JNICALL
Java_java_awt_FontMetrics_initIDs(JNIEnv *env, jclass cls)
{
TRY;
AwtFont::fontID = env->GetFieldID(cls, "font", "Ljava/awt/Font;");
AwtFont::getHeightMID = env->GetMethodID(cls, "getHeight", "()I");
DASSERT(AwtFont::fontID);
DASSERT(AwtFont::getHeightMID);
CATCH_BAD_ALLOC;
}
} /* extern "C" */
/************************************************************************
* sun.awt.FontDescriptor native methods
*/
extern "C" {
JNIEXPORT void JNICALL
Java_sun_awt_FontDescriptor_initIDs(JNIEnv *env, jclass cls)
{
TRY;
AwtFont::nativeNameID = env->GetFieldID(cls, "nativeName",
"Ljava/lang/String;");
AwtFont::useUnicodeID = env->GetFieldID(cls, "useUnicode", "Z");
DASSERT(AwtFont::nativeNameID != NULL);
DASSERT(AwtFont::useUnicodeID != NULL);
CATCH_BAD_ALLOC;
}
} /* extern "C" */
/************************************************************************
* sun.awt.PlatformFont native methods
*/
extern "C" {
JNIEXPORT void JNICALL
Java_sun_awt_PlatformFont_initIDs(JNIEnv *env, jclass cls)
{
TRY;
AwtFont::fontConfigID = env->GetFieldID(cls, "fontConfig", "Lsun/awt/FontConfiguration;");
AwtFont::componentFontsID =
env->GetFieldID(cls, "componentFonts", "[Lsun/awt/FontDescriptor;");
AwtFont::makeConvertedMultiFontStringMID =
env->GetMethodID(cls, "makeConvertedMultiFontString",
"(Ljava/lang/String;)[Ljava/lang/Object;");
DASSERT(AwtFont::makeConvertedMultiFontStringMID != NULL);
DASSERT(AwtFont::componentFontsID != NULL);
DASSERT(AwtFont::fontConfigID != NULL);
CATCH_BAD_ALLOC;
}
} /* extern "C" */
/************************************************************************
* sun.awt.windows.WFontPeer native methods
*/
extern "C" {
JNIEXPORT void JNICALL
Java_sun_awt_windows_WFontPeer_initIDs(JNIEnv *env, jclass cls)
{
TRY;
AwtFont::textComponentFontNameID = env->GetFieldID(cls, "textComponentFontName", "Ljava/lang/String;");
DASSERT(AwtFont::textComponentFontNameID != NULL);
CATCH_BAD_ALLOC;
}
} /* extern "C" */
/************************************************************************
* FontCache methods
*/
void AwtFontCache::Add(WCHAR* name, HFONT font)
{
fontCache.m_head = new Item(name, font, fontCache.m_head);
}
HFONT AwtFontCache::Lookup(WCHAR* name)
{
Item* item = fontCache.m_head;
Item* lastItem = NULL;
while (item != NULL) {
if (wcscmp(item->name, name) == 0) {
return item->font;
}
lastItem = item;
item = item->next;
}
return NULL;
}
BOOL AwtFontCache::Search(HFONT font)
{
Item* item = fontCache.m_head;
while (item != NULL) {
if (item->font == font) {
return TRUE;
}
item = item->next;
}
return FALSE;
}
void AwtFontCache::Remove(HFONT font)
{
Item* item = fontCache.m_head;
Item* lastItem = NULL;
while (item != NULL) {
if (item->font == font) {
if (DecRefCount(item) <= 0){
if (lastItem == NULL) {
fontCache.m_head = item->next;
} else {
lastItem->next = item->next;
}
delete item;
}
return;
}
lastItem = item;
item = item->next;
}
}
void AwtFontCache::Clear()
{
Item* item = m_head;
Item* next;
while (item != NULL) {
next = item->next;
delete item;
item = next;
}
m_head = NULL;
}
/* NOTE: In the interlock calls below the return value is different
depending on which version of windows. However, all versions
return a 0 or less than value when the count gets there. Only
under NT 4.0 & 98 does the value actaully represent the new value. */
void AwtFontCache::IncRefCount(HFONT hFont){
Item* item = fontCache.m_head;
while (item != NULL){
if (item->font == hFont){
IncRefCount(item);
return;
}
item = item->next;
}
}
LONG AwtFontCache::IncRefCount(Item* item){
LONG newVal;
if(NULL != item){
newVal = InterlockedIncrement((long*)&item->refCount);
}
return(newVal);
}
LONG AwtFontCache::DecRefCount(Item* item){
LONG newVal;
if(NULL != item){
newVal = InterlockedDecrement((long*)&item->refCount);
}
return(newVal);
}
AwtFontCache::Item::Item(const WCHAR* s, HFONT f, AwtFontCache::Item* n )
{
name = _wcsdup(s);
font = f;
next = n;
refCount = 1;
}
AwtFontCache::Item::~Item() {
VERIFY(::DeleteObject(font));
free(name);
}
/////////////////////////////////////////////////////////////////////////////
// for canConvert native method of WDefaultFontCharset
class CSegTableComponent
{
public:
CSegTableComponent();
virtual ~CSegTableComponent();
virtual void Create(LPCWSTR name);
virtual BOOL In(USHORT iChar) { DASSERT(FALSE); return FALSE; };
LPWSTR GetFontName(){
DASSERT(m_lpszFontName != NULL); return m_lpszFontName;
};
private:
LPWSTR m_lpszFontName;
};
CSegTableComponent::CSegTableComponent()
{
m_lpszFontName = NULL;
}
CSegTableComponent::~CSegTableComponent()
{
if (m_lpszFontName != NULL) {
free(m_lpszFontName);
m_lpszFontName = NULL;
}
}
void CSegTableComponent::Create(LPCWSTR name)
{
if (m_lpszFontName != NULL) {
free(m_lpszFontName);
m_lpszFontName = NULL;
}
m_lpszFontName = _wcsdup(name);
DASSERT(m_lpszFontName);
}
#define CMAPHEX 0x70616d63 // = "cmap" (reversed)
// CSegTable: Segment table describing character coverage for a font
class CSegTable : public CSegTableComponent
{
public:
CSegTable();
virtual ~CSegTable();
virtual BOOL In(USHORT iChar);
BOOL HasCmap();
virtual BOOL IsEUDC() { DASSERT(FALSE); return FALSE; };
protected:
virtual void GetData(DWORD dwOffset, LPVOID lpData, DWORD cbData) {
DASSERT(FALSE); };
void MakeTable();
static void SwapShort(USHORT& p);
static void SwapULong(ULONG& p);
private:
USHORT m_cSegCount; // number of segments
PUSHORT m_piStart; // pointer to array of starting values
PUSHORT m_piEnd; // pointer to array of ending values (inclusive)
USHORT m_cSeg; // current segment (cache)
};
CSegTable::CSegTable()
{
m_cSegCount = 0;
m_piStart = NULL;
m_piEnd = NULL;
m_cSeg = 0;
}
CSegTable::~CSegTable()
{
if (m_piStart != NULL)
delete[] m_piStart;
if (m_piEnd != NULL)
delete[] m_piEnd;
}
#define OFFSETERROR 0
void CSegTable::MakeTable()
{
typedef struct tagTABLE{
USHORT platformID;
USHORT encodingID;
ULONG offset;
} TABLE, *PTABLE;
typedef struct tagSUBTABLE{
USHORT format;
USHORT length;
USHORT version;
USHORT segCountX2;
USHORT searchRange;
USHORT entrySelector;
USHORT rangeShift;
} SUBTABLE, *PSUBTABLE;
USHORT aShort[2];
(void) GetData(0, aShort, sizeof(aShort));
USHORT nTables = aShort[1];
SwapShort(nTables);
// allocate buffer to hold encoding tables
DWORD cbData = nTables * sizeof(TABLE);
PTABLE pTables = new TABLE[nTables];
PTABLE pTable = pTables;
// get array of encoding tables.
(void) GetData(4, (PBYTE) pTable, cbData);
ULONG offsetFormat4 = OFFSETERROR;
USHORT i;
for (i = 0; i < nTables; i++) {
SwapShort(pTable->encodingID);
SwapShort(pTable->platformID);
//for a Unicode font for Windows, platformID == 3, encodingID == 1
if ((pTable->platformID == 3)&&(pTable->encodingID == 1)) {
offsetFormat4 = pTable->offset;
SwapULong(offsetFormat4);
break;
}
pTable++;
}
delete[] pTables;
if (offsetFormat4 == OFFSETERROR) {
return;
}
// DASSERT(offsetFormat4 != OFFSETERROR);
SUBTABLE subTable;
(void) GetData(offsetFormat4, &subTable, sizeof(SUBTABLE));
SwapShort(subTable.format);
SwapShort(subTable.segCountX2);
DASSERT(subTable.format == 4);
m_cSegCount = subTable.segCountX2/2;
// read in the array of segment end values
m_piEnd = new USHORT[m_cSegCount];
ULONG offset = offsetFormat4
+ sizeof(SUBTABLE); //skip constant # bytes in subtable
cbData = m_cSegCount * sizeof(USHORT);
(void) GetData(offset, m_piEnd, cbData);
for (i = 0; i < m_cSegCount; i++)
SwapShort(m_piEnd[i]);
DASSERT(m_piEnd[m_cSegCount-1] == 0xffff);
// read in the array of segment start values
try {
m_piStart = new USHORT[m_cSegCount];
} catch (std::bad_alloc&) {
delete [] m_piEnd;
m_piEnd = NULL;
throw;
}
offset += cbData //skip SegEnd array
+ sizeof(USHORT); //skip reservedPad
(void) GetData(offset, m_piStart, cbData);
for (i = 0; i < m_cSegCount; i++)
SwapShort(m_piStart[i]);
DASSERT(m_piStart[m_cSegCount-1] == 0xffff);
}
BOOL CSegTable::In(USHORT iChar)
{
if (!HasCmap()) {
return FALSE;
}
// DASSERT(m_piStart);
// DASSERT(m_piEnd);
if (iChar > m_piEnd[m_cSeg]) {
for (; (m_cSeg < m_cSegCount)&&(iChar > m_piEnd[m_cSeg]); m_cSeg++);
} else if (iChar < m_piStart[m_cSeg]) {
for (; (m_cSeg > 0)&&(iChar < m_piStart[m_cSeg]); m_cSeg--);
}
if ((iChar <= m_piEnd[m_cSeg])&&(iChar >= m_piStart[m_cSeg])&&(iChar != 0xffff))
return TRUE;
else
return FALSE;
}
inline BOOL CSegTable::HasCmap()
{
return (((m_piEnd)&&(m_piStart)) ? TRUE : FALSE);
}
inline void CSegTable::SwapShort(USHORT& p)
{
SHORT temp;
temp = (SHORT)(HIBYTE(p) + (LOBYTE(p) << 8));
p = temp;
}
inline void CSegTable::SwapULong(ULONG& p)
{
ULONG temp;
temp = (LONG) ((BYTE) p);
temp <<= 8;
p >>= 8;
temp += (LONG) ((BYTE) p);
temp <<= 8;
p >>= 8;
temp += (LONG) ((BYTE) p);
temp <<= 8;
p >>= 8;
temp += (LONG) ((BYTE) p);
p = temp;
}
class CStdSegTable : public CSegTable
{
public:
CStdSegTable();
virtual ~CStdSegTable();
BOOL IsEUDC() { return FALSE; };
virtual void Create(LPCWSTR name);
protected:
void GetData(DWORD dwOffset, LPVOID lpData, DWORD cbData);
private:
HDC m_hTmpDC;
};
CStdSegTable::CStdSegTable()
{
m_hTmpDC = NULL;
}
CStdSegTable::~CStdSegTable()
{
DASSERT(m_hTmpDC == NULL);
}
inline void CStdSegTable::GetData(DWORD dwOffset,
LPVOID lpData, DWORD cbData)
{
DASSERT(m_hTmpDC);
DWORD nBytes =
::GetFontData(m_hTmpDC, CMAPHEX, dwOffset, lpData, cbData);
DASSERT(nBytes != GDI_ERROR);
}
void CStdSegTable::Create(LPCWSTR name)
{
CSegTableComponent::Create(name);
HWND hWnd = ::GetDesktopWindow();
DASSERT(hWnd);
m_hTmpDC = ::GetWindowDC(hWnd);
DASSERT(m_hTmpDC);
HFONT hFont = CreateHFont_sub(name, 0, 20);
HFONT hOldFont = (HFONT)::SelectObject(m_hTmpDC, hFont);
DASSERT(hOldFont);
(void) MakeTable();
VERIFY(::SelectObject(m_hTmpDC, hOldFont));
VERIFY(::DeleteObject(hFont));
VERIFY(::ReleaseDC(hWnd, m_hTmpDC) != 0);
m_hTmpDC = NULL;
}
class CEUDCSegTable : public CSegTable
{
public:
CEUDCSegTable();
virtual ~CEUDCSegTable();
BOOL IsEUDC() { return TRUE; };
virtual void Create(LPCWSTR name);
protected:
void GetData(DWORD dwOffset, LPVOID lpData, DWORD cbData);
private:
HANDLE m_hTmpFile;
ULONG m_hTmpCMapOffset;
};
CEUDCSegTable::CEUDCSegTable()
{
m_hTmpFile = NULL;
m_hTmpCMapOffset = 0;
}
CEUDCSegTable::~CEUDCSegTable()
{
DASSERT(m_hTmpFile == NULL);
DASSERT(m_hTmpCMapOffset == 0);
}
inline void CEUDCSegTable::GetData(DWORD dwOffset,
LPVOID lpData, DWORD cbData)
{
DASSERT(m_hTmpFile);
DASSERT(m_hTmpCMapOffset);
::SetFilePointer(m_hTmpFile, m_hTmpCMapOffset + dwOffset,
NULL, FILE_BEGIN);
DWORD dwRead;
VERIFY(::ReadFile(m_hTmpFile, lpData, cbData, &dwRead, NULL));
DASSERT(dwRead == cbData);
}
void CEUDCSegTable::Create(LPCWSTR name)
{
typedef struct tagHEAD{
FIXED sfnt_version;
USHORT numTables;
USHORT searchRange;
USHORT entrySelector;
USHORT rangeShift;
} HEAD, *PHEAD;
typedef struct tagENTRY{
ULONG tag;
ULONG checkSum;
ULONG offset;
ULONG length;
} ENTRY, *PENTRY;
CSegTableComponent::Create(name);
// create EUDC font file and make EUDCSegTable
// after wrapper function for CreateFileW, we use only CreateFileW
m_hTmpFile = ::CreateFile(name, GENERIC_READ,
FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (m_hTmpFile == INVALID_HANDLE_VALUE){
m_hTmpFile = NULL;
return;
}
HEAD head;
DWORD dwRead;
VERIFY(::ReadFile(m_hTmpFile, &head, sizeof(head), &dwRead, NULL));
DASSERT(dwRead == sizeof(HEAD));
SwapShort(head.numTables);
ENTRY entry;
for (int i = 0; i < head.numTables; i++){
VERIFY(::ReadFile(m_hTmpFile, &entry, sizeof(entry), &dwRead, NULL));
DASSERT(dwRead == sizeof(ENTRY));
if (entry.tag == CMAPHEX)
break;
}
DASSERT(entry.tag == CMAPHEX);
SwapULong(entry.offset);
m_hTmpCMapOffset = entry.offset;
(void) MakeTable();
m_hTmpCMapOffset = 0;
VERIFY(::CloseHandle(m_hTmpFile));
m_hTmpFile = NULL;
}
class CSegTableManagerComponent
{
public:
CSegTableManagerComponent();
~CSegTableManagerComponent();
protected:
void MakeBiggerTable();
CSegTableComponent **m_tables;
int m_nTable;
int m_nMaxTable;
};
#define TABLENUM 20
CSegTableManagerComponent::CSegTableManagerComponent()
{
m_nTable = 0;
m_nMaxTable = TABLENUM;
m_tables = new CSegTableComponent*[m_nMaxTable];
}
CSegTableManagerComponent::~CSegTableManagerComponent()
{
for (int i = 0; i < m_nTable; i++) {
DASSERT(m_tables[i]);
delete m_tables[i];
}
delete [] m_tables;
m_tables = NULL;
}
void CSegTableManagerComponent::MakeBiggerTable()
{
CSegTableComponent **tables =
new CSegTableComponent*[m_nMaxTable + TABLENUM];
for (int i = 0; i < m_nMaxTable; i++)
tables[i] = m_tables[i];
delete[] m_tables;
m_tables = tables;
m_nMaxTable += TABLENUM;
}
class CSegTableManager : public CSegTableManagerComponent
{
public:
CSegTable* GetTable(LPCWSTR lpszFontName, BOOL fEUDC);
};
CSegTable* CSegTableManager::GetTable(LPCWSTR lpszFontName, BOOL fEUDC)
{
for (int i = 0; i < m_nTable; i++) {
if ((((CSegTable*)m_tables[i])->IsEUDC() == fEUDC) &&
(wcscmp(m_tables[i]->GetFontName(),lpszFontName) == 0))
return (CSegTable*) m_tables[i];
}
if (m_nTable == m_nMaxTable) {
(void) MakeBiggerTable();
}
DASSERT(m_nTable < m_nMaxTable);
if (!fEUDC) {
m_tables[m_nTable] = new CStdSegTable;
} else {
m_tables[m_nTable] = new CEUDCSegTable;
}
m_tables[m_nTable]->Create(lpszFontName);
return (CSegTable*) m_tables[m_nTable++];
}
CSegTableManager g_segTableManager;
class CCombinedSegTable : public CSegTableComponent
{
public:
CCombinedSegTable();
void Create(LPCWSTR name);
BOOL In(USHORT iChar);
private:
LPSTR GetCodePageSubkey();
void GetEUDCFileName(LPWSTR lpszFileName, int cchFileName);
static char m_szCodePageSubkey[16];
static WCHAR m_szDefaultEUDCFile[_MAX_PATH];
static BOOL m_fEUDCSubKeyExist;
static BOOL m_fTTEUDCFileExist;
CStdSegTable* m_pStdSegTable;
CEUDCSegTable* m_pEUDCSegTable;
};
char CCombinedSegTable::m_szCodePageSubkey[16] = "";
WCHAR CCombinedSegTable::m_szDefaultEUDCFile[_MAX_PATH] = L"";
BOOL CCombinedSegTable::m_fEUDCSubKeyExist = TRUE;
BOOL CCombinedSegTable::m_fTTEUDCFileExist = TRUE;
CCombinedSegTable::CCombinedSegTable()
{
m_pStdSegTable = NULL;
m_pEUDCSegTable = NULL;
}
#include <locale.h>
LPSTR CCombinedSegTable::GetCodePageSubkey()
{
if (strlen(m_szCodePageSubkey) > 0) {
return m_szCodePageSubkey;
}
LPSTR lpszLocale = setlocale(LC_CTYPE, "");
// cf lpszLocale = "Japanese_Japan.932"
if (lpszLocale == NULL) {
return NULL;
}
LPSTR lpszCP = strchr(lpszLocale, (int) '.');
if (lpszCP == NULL) {
return NULL;
}
lpszCP++; // cf lpszCP = "932"
char szSubKey[80];
strcpy(szSubKey, "EUDC\\");
strcpy(&(szSubKey[strlen(szSubKey)]), lpszCP);
strcpy(m_szCodePageSubkey, szSubKey);
return m_szCodePageSubkey;
}
void CCombinedSegTable::GetEUDCFileName(LPWSTR lpszFileName, int cchFileName)
{
if (m_fEUDCSubKeyExist == FALSE)
return;
// get filename of typeface-specific TureType EUDC font
LPSTR lpszSubKey = GetCodePageSubkey();
if (lpszSubKey == NULL) {
m_fEUDCSubKeyExist = FALSE;
return; // can not get codepage information
}
HKEY hRootKey = HKEY_CURRENT_USER;
HKEY hKey;
LONG lRet = ::RegOpenKeyExA(hRootKey, lpszSubKey, 0, KEY_ALL_ACCESS, &hKey);
if (lRet != ERROR_SUCCESS) {
m_fEUDCSubKeyExist = FALSE;
return; // no EUDC font
}
// get EUDC font file name
WCHAR szFamilyName[80];
wcscpy(szFamilyName, GetFontName());
WCHAR* delimit = wcschr(szFamilyName, L',');
if (delimit != NULL)
*delimit = L'\0';
DWORD dwType;
UCHAR szFileName[_MAX_PATH];
::ZeroMemory(szFileName, sizeof(szFileName));
DWORD dwBytes = sizeof(szFileName);
// try Typeface-specific EUDC font
char szTmpName[80];
VERIFY(::WideCharToMultiByte(CP_ACP, 0, szFamilyName, -1,
szTmpName, sizeof(szTmpName), NULL, NULL));
LONG lStatus = ::RegQueryValueExA(hKey, (LPCSTR) szTmpName,
NULL, &dwType, szFileName, &dwBytes);
BOOL fUseDefault = FALSE;
if (lStatus != ERROR_SUCCESS){ // try System default EUDC font
if (m_fTTEUDCFileExist == FALSE)
return;
if (wcslen(m_szDefaultEUDCFile) > 0) {
wcscpy(lpszFileName, m_szDefaultEUDCFile);
return;
}
char szDefault[] = "SystemDefaultEUDCFont";
lStatus = ::RegQueryValueExA(hKey, (LPCSTR) szDefault,
NULL, &dwType, szFileName, &dwBytes);
fUseDefault = TRUE;
if (lStatus != ERROR_SUCCESS) {
m_fTTEUDCFileExist = FALSE;
// This font is associated with no EUDC font
// and there is no system default EUDC font
return;
}
}
if (strcmp((LPCSTR) szFileName, "userfont.fon") == 0) {
// This font is associated with no EUDC font
// and the system default EUDC font is not TrueType
m_fTTEUDCFileExist = FALSE;
return;
}
DASSERT(strlen((LPCSTR)szFileName) > 0);
VERIFY(::MultiByteToWideChar(CP_ACP, 0,
(LPCSTR)szFileName, -1, lpszFileName, cchFileName) != 0);
if (fUseDefault)
wcscpy(m_szDefaultEUDCFile, lpszFileName);
}
void CCombinedSegTable::Create(LPCWSTR name)
{
CSegTableComponent::Create(name);
m_pStdSegTable =
(CStdSegTable*) g_segTableManager.GetTable(name, FALSE/*not EUDC*/);
WCHAR szEUDCFileName[_MAX_PATH];
::ZeroMemory(szEUDCFileName, sizeof(szEUDCFileName));
(void) GetEUDCFileName(szEUDCFileName,
sizeof(szEUDCFileName)/sizeof(WCHAR));
if (wcslen(szEUDCFileName) > 0) {
m_pEUDCSegTable = (CEUDCSegTable*) g_segTableManager.GetTable(
szEUDCFileName, TRUE/*EUDC*/);
if (m_pEUDCSegTable->HasCmap() == FALSE)
m_pEUDCSegTable = NULL;
}
}
BOOL CCombinedSegTable::In(USHORT iChar)
{
DASSERT(m_pStdSegTable);
if (m_pStdSegTable->In(iChar))
return TRUE;
if (m_pEUDCSegTable != NULL)
return m_pEUDCSegTable->In(iChar);
return FALSE;
}
class CCombinedSegTableManager : public CSegTableManagerComponent
{
public:
CCombinedSegTable* GetTable(LPCWSTR lpszFontName);
};
CCombinedSegTable* CCombinedSegTableManager::GetTable(LPCWSTR lpszFontName)
{
for (int i = 0; i < m_nTable; i++) {
if (wcscmp(m_tables[i]->GetFontName(),lpszFontName) == 0)
return (CCombinedSegTable*) m_tables[i];
}
if (m_nTable == m_nMaxTable) {
(void) MakeBiggerTable();
}
DASSERT(m_nTable < m_nMaxTable);
m_tables[m_nTable] = new CCombinedSegTable;
m_tables[m_nTable]->Create(lpszFontName);
return (CCombinedSegTable*) m_tables[m_nTable++];
}
/************************************************************************
* WDefaultFontCharset native methos
*/
extern "C" {
JNIEXPORT void JNICALL
Java_sun_awt_windows_WDefaultFontCharset_initIDs(JNIEnv *env, jclass cls)
{
TRY;
AwtFont::fontNameID = env->GetFieldID(cls, "fontName",
"Ljava/lang/String;");
DASSERT(AwtFont::fontNameID != NULL);
CATCH_BAD_ALLOC;
}
/*
* !!!!!!!!!!!!!!!!!!!! this does not work. I am not sure why, but
* when active, this will reliably crash HJ, with no hope of debugging
* for java. It doesn't seem to crash the _g version.
* !!!!!!!!!!!!!!!!!!!!!!!!!!!!
*
* I suspect may be running out of C stack: see alloca in
* JNI_GET_STRING, the alloca in it.
*
* (the method is prefixed with XXX so that the linker won't find it) */
JNIEXPORT jboolean JNICALL
Java_sun_awt_windows_WDefaultFontCharset_canConvert(JNIEnv *env, jobject self,
jchar ch)
{
TRY;
static CCombinedSegTableManager tableManager;
jstring fontName = (jstring)env->GetObjectField(self, AwtFont::fontNameID);
DASSERT(fontName != NULL);
LPCWSTR fontNameW = JNU_GetStringPlatformChars(env, fontName, NULL);
CCombinedSegTable* pTable = tableManager.GetTable(fontNameW);
JNU_ReleaseStringPlatformChars(env, fontName, fontNameW);
return (pTable->In((USHORT) ch) ? JNI_TRUE : JNI_FALSE);
CATCH_BAD_ALLOC_RET(FALSE);
}
} /* extern "C" */
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