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firefox/firefox-1.5-xft-rangewidth.patch

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backported pango patches from FC6
2007-07-09 10:15:21 +00:00
diff -pruN -x '.moz*' -x .libs -x .deps -x dist -x 'config*' -x 'firefox*' -x '*a' -x '*so' -x '*o' -x build -x '*html' mozilla.orig/gfx/src/gtk/nsFontMetricsXft.cpp mozilla/gfx/src/gtk/nsFontMetricsXft.cpp
--- mozilla.orig/gfx/src/gtk/nsFontMetricsXft.cpp 2006-04-25 08:58:36.000000000 +0900
+++ mozilla/gfx/src/gtk/nsFontMetricsXft.cpp 2007-02-08 01:50:05.000000000 +0900
@@ -227,10 +227,14 @@ static nsresult EnumFontsXft (nsIAto
static void ConvertCharToUCS4 (const char *aString,
PRUint32 aLength,
+ PRUint32 aStart,
+ PRUint32 aEnd,
nsAutoFcChar32Buffer &aOutBuffer,
PRUint32 *aOutLen);
static void ConvertUnicharToUCS4 (const PRUnichar *aString,
PRUint32 aLength,
+ PRUint32 aStart,
+ PRUint32 aEnd,
nsAutoFcChar32Buffer &aOutBuffer,
PRUint32 *aOutLen);
static nsresult ConvertUCS4ToCustom (FcChar32 *aSrc, PRUint32 aSrcLen,
@@ -507,7 +511,7 @@ nsFontMetricsXft::GetWidth(const PRUnich
return NS_OK;
}
- gint rawWidth = RawGetWidth(aString, aLength);
+ gint rawWidth = RawGetWidth(aString, aLength, 0, aLength);
float f;
f = mDeviceContext->DevUnitsToAppUnits();
@@ -533,7 +537,7 @@ nsFontMetricsXft::GetTextDimensions(cons
return NS_OK;
nsresult rv;
- rv = EnumerateGlyphs(aString, aLength,
+ rv = EnumerateGlyphs(aString, aLength, 0, aLength,
&nsFontMetricsXft::TextDimensionsCallback,
&aDimensions);
@@ -608,7 +612,7 @@ nsFontMetricsXft::DrawString(const char
nsAutoDrawSpecBuffer drawBuffer(data.draw, &data.color);
data.drawBuffer = &drawBuffer;
- return EnumerateGlyphs(aString, aLength,
+ return EnumerateGlyphs(aString, aLength, 0, aLength,
&nsFontMetricsXft::DrawStringCallback, &data);
}
@@ -638,7 +642,7 @@ nsFontMetricsXft::DrawString(const PRUni
nsAutoDrawSpecBuffer drawBuffer(data.draw, &data.color);
data.drawBuffer = &drawBuffer;
- return EnumerateGlyphs(aString, aLength,
+ return EnumerateGlyphs(aString, aLength, 0, aLength,
&nsFontMetricsXft::DrawStringCallback, &data);
}
@@ -662,7 +666,7 @@ nsFontMetricsXft::GetBoundingMetrics(con
data.firstTime = PR_TRUE;
nsresult rv;
- rv = EnumerateGlyphs(aString, aLength,
+ rv = EnumerateGlyphs(aString, aLength, 0, aLength,
&nsFontMetricsXft::BoundingMetricsCallback, &data);
NS_ENSURE_SUCCESS(rv, rv);
@@ -700,7 +704,7 @@ nsFontMetricsXft::GetBoundingMetrics(con
data.firstTime = PR_TRUE;
nsresult rv;
- rv = EnumerateGlyphs(aString, aLength,
+ rv = EnumerateGlyphs(aString, aLength, 0, aLength,
&nsFontMetricsXft::BoundingMetricsCallback, &data);
NS_ENSURE_SUCCESS(rv, rv);
@@ -758,7 +762,17 @@ nsFontMetricsXft::GetRangeWidth(const PR
PRUint32 aEnd,
PRUint32 &aWidth)
{
- return NS_ERROR_NOT_IMPLEMENTED;
+ if (!aLength) {
+ aWidth = 0;
+ return NS_OK;
+ }
+
+ gint rawWidth = RawGetWidth(aText, aLength, aStart, aEnd);
+ float f = mDeviceContext->DevUnitsToAppUnits();
+
+ aWidth = NSToCoordRound(rawWidth * f);
+
+ return NS_OK;
}
nsresult
@@ -768,7 +782,17 @@ nsFontMetricsXft::GetRangeWidth(const ch
PRUint32 aEnd,
PRUint32 &aWidth)
{
- return NS_ERROR_NOT_IMPLEMENTED;
+ if (!aLength) {
+ aWidth = 0;
+ return NS_OK;
+ }
+
+ gint rawWidth = RawGetWidth(aText, aLength, aStart, aEnd);
+ float f = mDeviceContext->DevUnitsToAppUnits();
+
+ aWidth = NSToCoordRound(rawWidth * f);
+
+ return NS_OK;
}
PRUint32
@@ -850,12 +874,12 @@ nsFontMetricsXft::CacheFontMetrics(void)
// mSpaceWidth (width of a space)
gint rawWidth;
PRUnichar unispace(' ');
- rawWidth = RawGetWidth(&unispace, 1);
+ rawWidth = RawGetWidth(&unispace, 1, 0, 1);
mSpaceWidth = NSToCoordRound(rawWidth * f);
// mAveCharWidth (width of an 'average' char)
PRUnichar xUnichar('x');
- rawWidth = RawGetWidth(&xUnichar, 1);
+ rawWidth = RawGetWidth(&xUnichar, 1, 0, 1);
mAveCharWidth = NSToCoordRound(rawWidth * f);
// mXHeight (height of an 'x' character)
@@ -1226,12 +1250,27 @@ nsFontMetricsXft::DoMatch(PRBool aMatchA
}
gint
-nsFontMetricsXft::RawGetWidth(const PRUnichar* aString, PRUint32 aLength)
+nsFontMetricsXft::RawGetWidth(const PRUnichar* aString, PRUint32 aLength, PRUint32 aStart, PRUint32 aEnd)
+{
+ nscoord width = 0;
+ nsresult rv;
+
+ rv = EnumerateGlyphs(aString, aLength, aStart, aEnd,
+ &nsFontMetricsXft::GetWidthCallback, &width);
+
+ if (NS_FAILED(rv))
+ width = 0;
+
+ return width;
+}
+
+gint
+nsFontMetricsXft::RawGetWidth(const char* aString, PRUint32 aLength, PRUint32 aStart, PRUint32 aEnd)
{
nscoord width = 0;
nsresult rv;
- rv = EnumerateGlyphs(aString, aLength,
+ rv = EnumerateGlyphs(aString, aLength, aStart, aEnd,
&nsFontMetricsXft::GetWidthCallback, &width);
if (NS_FAILED(rv))
@@ -1457,6 +1496,8 @@ nsFontMetricsXft::EnumerateXftGlyphs(con
nsresult
nsFontMetricsXft::EnumerateGlyphs(const PRUnichar *aString,
PRUint32 aLen,
+ PRUint32 aStart,
+ PRUint32 aEnd,
GlyphEnumeratorCallback aCallback,
void *aCallbackData)
{
@@ -1465,7 +1506,7 @@ nsFontMetricsXft::EnumerateGlyphs(const
NS_ENSURE_TRUE(aLen, NS_OK);
- ConvertUnicharToUCS4(aString, aLen, charBuffer, &len);
+ ConvertUnicharToUCS4(aString, aLen, aStart, aEnd, charBuffer, &len);
if (!len)
return NS_ERROR_OUT_OF_MEMORY;
@@ -1475,6 +1516,8 @@ nsFontMetricsXft::EnumerateGlyphs(const
nsresult
nsFontMetricsXft::EnumerateGlyphs(const char *aString,
PRUint32 aLen,
+ PRUint32 aStart,
+ PRUint32 aEnd,
GlyphEnumeratorCallback aCallback,
void *aCallbackData)
{
@@ -1484,7 +1527,7 @@ nsFontMetricsXft::EnumerateGlyphs(const
NS_ENSURE_TRUE(aLen, NS_OK);
// Convert the incoming string into an array of UCS4 chars
- ConvertCharToUCS4(aString, aLen, charBuffer, &len);
+ ConvertCharToUCS4(aString, aLen, aStart, aEnd, charBuffer, &len);
if (!len)
return NS_ERROR_OUT_OF_MEMORY;
@@ -2343,7 +2386,7 @@ EnumFontsXft(nsIAtom* aLangGroup, const
/* static */
void
-ConvertCharToUCS4(const char *aString, PRUint32 aLength,
+ConvertCharToUCS4(const char *aString, PRUint32 aLength, PRUint32 aStart, PRUint32 aEnd,
nsAutoFcChar32Buffer &aOutBuffer, PRUint32 *aOutLen)
{
*aOutLen = 0;
@@ -2352,19 +2395,21 @@ ConvertCharToUCS4(const char *aString, P
if (!aOutBuffer.EnsureElemCapacity(aLength))
return;
outBuffer = aOutBuffer.get();
+ if (aEnd > aLength)
+ aEnd = aLength;
- for (PRUint32 i = 0; i < aLength; ++i) {
- outBuffer[i] = PRUint8(aString[i]); // to convert char >= 0x80 correctly
+ for (PRUint32 i = aStart; i < aLength && i < aEnd; ++i) {
+ outBuffer[i - aStart] = PRUint8(aString[i]); // to convert char >= 0x80 correctly
}
- *aOutLen = aLength;
+ *aOutLen = aEnd - aStart;
}
// Convert the incoming string into an array of UCS4 chars
/* static */
void
-ConvertUnicharToUCS4(const PRUnichar *aString, PRUint32 aLength,
+ConvertUnicharToUCS4(const PRUnichar *aString, PRUint32 aLength, PRUint32 aStart, PRUint32 aEnd,
nsAutoFcChar32Buffer &aOutBuffer, PRUint32 *aOutLen)
{
*aOutLen = 0;
@@ -2378,7 +2423,7 @@ ConvertUnicharToUCS4(const PRUnichar *aS
// Walk the passed in string looking for surrogates to convert to
// their full ucs4 representation.
- for (PRUint32 i = 0; i < aLength; ++i) {
+ for (PRUint32 i = aStart; i < aLength && i < aEnd; ++i) {
PRUnichar c = aString[i];
// Optimized for the non-surrogate case
@@ -2693,12 +2738,12 @@ ConvertUCS4ToCustom(FcChar32 *aSrc, PRU
#endif
// Convert 16bit custom font codes to UCS4
ConvertUnicharToUCS4(NS_REINTERPRET_CAST(PRUnichar *, med),
- medLen >> 1, aResult, &aDestLen);
+ medLen >> 1, 0, medLen >> 1, aResult, &aDestLen);
rv = aDestLen ? rv : NS_ERROR_OUT_OF_MEMORY;
}
else {
// Convert 8bit custom font codes to UCS4
- ConvertCharToUCS4(med, medLen, aResult, &aDestLen);
+ ConvertCharToUCS4(med, medLen, 0, medLen, aResult, &aDestLen);
rv = aDestLen ? rv : NS_ERROR_OUT_OF_MEMORY;
}
diff -pruN -x '.moz*' -x .libs -x .deps -x dist -x 'config*' -x 'firefox*' -x '*a' -x '*so' -x '*o' -x build -x '*html' mozilla.orig/gfx/src/gtk/nsFontMetricsXft.h mozilla/gfx/src/gtk/nsFontMetricsXft.h
--- mozilla.orig/gfx/src/gtk/nsFontMetricsXft.h 2005-05-03 05:48:30.000000000 +0900
+++ mozilla/gfx/src/gtk/nsFontMetricsXft.h 2007-02-08 01:38:27.000000000 +0900
@@ -259,7 +259,13 @@ private:
void DoMatch (PRBool aMatchAll);
gint RawGetWidth (const PRUnichar* aString,
- PRUint32 aLength);
+ PRUint32 aLength,
+ PRUint32 aStart,
+ PRUint32 aEnd);
+ gint RawGetWidth (const char* aString,
+ PRUint32 aLength,
+ PRUint32 aStart,
+ PRUint32 aEnd);
nsresult SetupMiniFont (void);
nsresult DrawUnknownGlyph (FcChar32 aChar,
nscoord aX,
@@ -272,10 +278,14 @@ private:
void *aCallbackData);
nsresult EnumerateGlyphs (const char *aString,
PRUint32 aLen,
+ PRUint32 aStart,
+ PRUint32 aEnd,
GlyphEnumeratorCallback aCallback,
void *aCallbackData);
nsresult EnumerateGlyphs (const PRUnichar *aString,
PRUint32 aLen,
+ PRUint32 aStart,
+ PRUint32 aEnd,
GlyphEnumeratorCallback aCallback,
void *aCallbackData);
void PrepareToDraw (nsRenderingContextGTK *aContext,
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