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turn on ATSUI and use it in the case of non-ASCII characters so we can start testing Japanese pages such as http://home.netscape.com/ja

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ftang%netscape.com 1999-02-01 22:32:40 +00:00
parent 08d1869b50
commit cd89a87e7f
1 changed files with 96 additions and 17 deletions
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113
gfx/src/mac/nsRenderingContextMac.cpp
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@ -26,13 +26,28 @@
#include "nsVoidArray.h"
#include "nsGfxCIID.h"
#include "nsCOMPtr.h"
#include <FixMath.h>
//#define USE_ATSUI_HACK
#define USE_ATSUI_HACK
#ifdef USE_ATSUI_HACK
#define USE_ATSUI_HACK_FOR_NONASCII
#include <ATSUnicode.h>
#include <FixMath.h>
#include <Gestalt.h>
static Boolean IsATSUIAvailable();
static OSErr SetATSUIFont(nsIFontMetrics& inFontMetrics, nscolor aColor, nsIDeviceContext* aContext, ATSUStyle theStyle);
static Boolean IsAllASCII(PRUnichar* str, PRUint32 len);
static Boolean IsAllASCII(PRUnichar* str, PRUint32 len)
{
for(PRUint32 i=0; i < len; i++)
{
if(str[i] & 0xFF80)
return FALSE;
}
return TRUE;
}
#endif
@ -1381,15 +1396,76 @@ nsRenderingContextMac :: GetWidth(const char* aString, PRUint32 aLength, nscoord
NS_IMETHODIMP nsRenderingContextMac :: GetWidth(const PRUnichar *aString, PRUint32 aLength, nscoord &aWidth, PRInt32 *aFontID)
{
nsString nsStr;
nsStr.SetString(aString, aLength);
char* cStr = nsStr.ToNewCString();
ConvertLatin1ToMacRoman ( cStr );
GetWidth(cStr, aLength, aWidth);
delete[] cStr;
if (nsnull != aFontID)
*aFontID = 0;
return NS_OK;
#ifdef USE_ATSUI_HACK
#ifdef USE_ATSUI_HACK_FOR_NONASCII
if (IsATSUIAvailable() && (! IsAllASCII(aString, aLength)))
#else
if (IsATSUIAvailable())
#endif
{
StartDraw();
// set native font and attributes
SetPortTextState();
// measure text
ATSUTextLayout txLayout = nil;
ATSUStyle theStyle;
OSErr err;
err = ATSUCreateStyle(&theStyle);
NS_ASSERTION((noErr == err), "ATSUCreateStyle failed");
if (mGS->mFontMetrics)
{
// set native font and attributes
nsFont *font;
mGS->mFontMetrics->GetFont(font);
//nsFontMetricsMac::SetFont(*font, mContext); // this is unnecessary
err = SetATSUIFont(*mGS->mFontMetrics, mGS->mColor, mContext, theStyle);
NS_ASSERTION((noErr == err), "setATSUIFont failed");
}
UniCharCount runLengths = aLength;
err = ATSUCreateTextLayoutWithTextPtr( (ConstUniCharArrayPtr)aString, 0, aLength, aLength,
1, &runLengths, &theStyle,
&txLayout);
NS_ASSERTION((noErr == err), "ATSUCreateTextLayoutWithTextPtr failed");
err = ATSUSetTransientFontMatching(txLayout, true);
NS_ASSERTION((noErr == err), "ATSUSetTransientFontMatching failed");
ATSUTextMeasurement iAfter;
err = ATSUMeasureText( txLayout, 0, aLength, NULL, &iAfter, NULL, NULL );
NS_ASSERTION((noErr == err), "ATSUDrawText failed");
err = ATSUDisposeTextLayout(txLayout);
NS_ASSERTION((noErr == err), "ATSUDisposeTextLayout failed");
err = ATSUDisposeStyle(theStyle);
NS_ASSERTION((noErr == err), "ATSUDisposeStyle failed");
aWidth = NSToCoordRound(Fix2Long(iAfter) * mP2T);
EndDraw();
}
else
#endif //USE_ATSUI_HACK
{
nsString nsStr;
nsStr.SetString(aString, aLength);
char* cStr = nsStr.ToNewCString();
ConvertLatin1ToMacRoman ( cStr );
GetWidth(cStr, aLength, aWidth);
delete[] cStr;
if (nsnull != aFontID)
*aFontID = 0;
}
return NS_OK;
}
//------------------------------------------------------------------------
@ -1521,7 +1597,7 @@ static OSErr AtsuSetFont(ATSUStyle theStyle, ATSUFontID theFontID)
static OSErr AtsuSetSize(ATSUStyle theStyle, Fixed size)
{
ATSUAttributeTag theTag;
ATSUAttributeTag theTag;
ByteCount theValueSize;
ATSUAttributeValuePtr theValue;
@ -1549,11 +1625,10 @@ static OSErr AtsuSetColor(ATSUStyle theStyle, RGBColor color)
static OSErr SetStyleSize (nsIFontMetrics& inFontMetrics, nsIDeviceContext* aContext, ATSUStyle theStyle)
{
float dev2app;
aContext->GetDevUnitsToAppUnits(dev2app);
nsFont *aFont;
inFontMetrics.GetFont(aFont);
return AtsuSetSize(theStyle, FloatToFixed((float(aFont->size) / dev2app)));
TextStyle textStyle;
nsFontMetricsMac::GetNativeTextStyle(inFontMetrics, *aContext, textStyle);
return AtsuSetSize(theStyle, Long2Fix(textStyle.tsSize));
}
@ -1618,7 +1693,11 @@ NS_IMETHODIMP nsRenderingContextMac :: DrawString(const PRUnichar *aString, PRUi
const nscoord* aSpacing)
{
#ifdef USE_ATSUI_HACK
if (IsATSUIAvailable())
#ifdef USE_ATSUI_HACK_FOR_NONASCII
if (IsATSUIAvailable() && (! IsAllASCII(aString, aLength)))
#else
if (IsATSUIAvailable())
#endif
{
StartDraw();