зеркало из https://github.com/mozilla/gecko-dev.git
Fix blocker bug 100208 by handling the possibility that a GdkFont wraps an XFontSet rather than an XFontStruct. Handle the XFontSet by using the size and weight from the first font and all the family names. r=jag
This commit is contained in:
dbaron%fas.harvard.edu
Родитель
155746aa19
Коммит
5086c7b98f
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@ -659,15 +659,21 @@ int nsDeviceContextGTK::prefChanged(const char *aPref, void *aClosure)
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return 0;
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}
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#define DEFAULT_TWIP_FONT_SIZE 240
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nsSystemFontsGTK::nsSystemFontsGTK(float aPixelsToTwips)
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: mDefaultFont("sans-serif", NS_FONT_STYLE_NORMAL, NS_FONT_VARIANT_NORMAL,
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NS_FONT_WEIGHT_NORMAL, NS_FONT_DECORATION_NONE, 240),
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NS_FONT_WEIGHT_NORMAL, NS_FONT_DECORATION_NONE,
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DEFAULT_TWIP_FONT_SIZE),
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mButtonFont("sans-serif", NS_FONT_STYLE_NORMAL, NS_FONT_VARIANT_NORMAL,
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NS_FONT_WEIGHT_NORMAL, NS_FONT_DECORATION_NONE, 240),
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NS_FONT_WEIGHT_NORMAL, NS_FONT_DECORATION_NONE,
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DEFAULT_TWIP_FONT_SIZE),
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mFieldFont("sans-serif", NS_FONT_STYLE_NORMAL, NS_FONT_VARIANT_NORMAL,
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NS_FONT_WEIGHT_NORMAL, NS_FONT_DECORATION_NONE, 240),
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NS_FONT_WEIGHT_NORMAL, NS_FONT_DECORATION_NONE,
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DEFAULT_TWIP_FONT_SIZE),
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mMenuFont("sans-serif", NS_FONT_STYLE_NORMAL, NS_FONT_VARIANT_NORMAL,
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NS_FONT_WEIGHT_NORMAL, NS_FONT_DECORATION_NONE, 240)
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NS_FONT_WEIGHT_NORMAL, NS_FONT_DECORATION_NONE,
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DEFAULT_TWIP_FONT_SIZE)
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{
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/*
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* Much of the widget creation code here is similar to the code in
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@ -749,10 +755,82 @@ nsSystemFontsGTK::nsSystemFontsGTK(float aPixelsToTwips)
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}
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#if 0 // debugging code to list the font properties
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static void
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ListFontProps(XFontStruct *aFont, Display *aDisplay)
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{
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printf("\n\n");
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for (int i = 0, n = aFont->n_properties; i < n; ++i) {
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XFontProp *prop = aFont->properties + i;
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char *atomName = ::XGetAtomName(aDisplay, prop->name);
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// 500 is just a guess
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char *cardName = (prop->card32 > 0 && prop->card32 < 500)
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? ::XGetAtomName(aDisplay, prop->card32)
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: 0;
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printf("%s : %ld (%s)\n", atomName, prop->card32, cardName?cardName:"");
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::XFree(atomName);
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if (cardName)
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::XFree(cardName);
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}
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printf("\n\n");
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}
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#endif
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static void
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AppendFontName(XFontStruct* aFontStruct, nsString& aString, Display *aDisplay)
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{
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unsigned long pr = 0;
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::XGetFontProperty(aFontStruct, XA_FAMILY_NAME, &pr);
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if (!pr)
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::XGetFontProperty(aFontStruct, XA_FULL_NAME, &pr);
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if (pr) {
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char *fontName = ::XGetAtomName(aDisplay, pr);
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aString.AppendWithConversion(fontName);
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::XFree(fontName);
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}
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}
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static PRUint16
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GetFontWeight(XFontStruct* aFontStruct, Display *aDisplay)
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{
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PRUint16 weight = NS_FONT_WEIGHT_NORMAL;
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// WEIGHT_NAME seems more reliable than WEIGHT, where 10 can mean
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// anything. Check both, and make it bold if either says so.
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unsigned long pr = 0;
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Atom weightName = ::XInternAtom(aDisplay, "WEIGHT_NAME", True);
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if (weightName != None) {
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::XGetFontProperty(aFontStruct, weightName, &pr);
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if (pr) {
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char *weightString = ::XGetAtomName(aDisplay, pr);
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if (nsCRT::strcasecmp(weightString, "bold") == 0)
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weight = NS_FONT_WEIGHT_BOLD;
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::XFree(weightString);
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}
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}
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pr = 0;
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::XGetFontProperty(aFontStruct, XA_WEIGHT, &pr);
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if ( pr > 10 )
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weight = NS_FONT_WEIGHT_BOLD;
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return weight;
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}
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static nscoord
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GetFontSize(XFontStruct *aFontStruct, float aPixelsToTwips)
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{
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unsigned long pr = 0;
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Atom pixelSizeAtom = ::XInternAtom(GDK_DISPLAY(), "PIXEL_SIZE", 0);
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::XGetFontProperty(aFontStruct, pixelSizeAtom, &pr);
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if (!pr)
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return DEFAULT_TWIP_FONT_SIZE;
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return NSIntPixelsToTwips(pr, aPixelsToTwips);
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}
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nsresult
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nsSystemFontsGTK::GetSystemFontInfo(GdkFont* iFont, nsFont* aFont, float aPixelsToTwips) const
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{
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nsresult status = NS_OK;
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GdkFont *theFont = iFont;
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aFont->style = NS_FONT_STYLE_NORMAL;
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@ -771,65 +849,44 @@ nsSystemFontsGTK::GetSystemFontInfo(GdkFont* iFont, nsFont* aFont, float aPixels
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if (!theFont)
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theFont = ::gdk_font_load( GDK_DEFAULT_FONT2 );
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if (!theFont) {
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status = NS_ERROR_FAILURE;
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if (!theFont)
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return NS_ERROR_FAILURE;
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Display *fontDisplay = GDK_FONT_XDISPLAY(theFont);
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if (theFont->type == GDK_FONT_FONT) {
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XFontStruct *fontStruct =
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NS_STATIC_CAST(XFontStruct*, GDK_FONT_XFONT(theFont));
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aFont->name.Truncate();
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AppendFontName(fontStruct, aFont->name, fontDisplay);
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aFont->weight = GetFontWeight(fontStruct, fontDisplay);
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aFont->size = GetFontSize(fontStruct, aPixelsToTwips);
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} else {
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XFontStruct *fontInfo = (XFontStruct *)GDK_FONT_XFONT( theFont );
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unsigned long pr = 0;
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NS_ASSERTION(theFont->type == GDK_FONT_FONTSET,
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"theFont->type can only have two values");
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#if 0 // debugging code to list the font properties
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printf("\n\n");
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for (int i = 0, n = fontInfo->n_properties; i < n; ++i) {
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XFontProp *prop = fontInfo->properties + i;
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char *atomName = XGetAtomName(GDK_FONT_XDISPLAY(theFont), prop->name);
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// 500 is just a guess
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char *cardName = (prop->card32 > 0 && prop->card32 < 500)
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? XGetAtomName(GDK_FONT_XDISPLAY(theFont), prop->card32)
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: 0;
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printf("%s : %ld (%s)\n", atomName, prop->card32, cardName?cardName:"");
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XFree(atomName);
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if (cardName)
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XFree(cardName);
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XFontSet fontSet = NS_STATIC_CAST(XFontSet, GDK_FONT_XFONT(theFont));
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XFontStruct **fontStructs;
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char **fontNames;
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int numFonts = ::XFontsOfFontSet(fontSet, &fontStructs, &fontNames);
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if (numFonts == 0)
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return NS_ERROR_FAILURE;
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// Use the weight and size from the first font, but append all
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// the names.
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aFont->weight = GetFontWeight(*fontStructs, fontDisplay);
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aFont->size = GetFontSize(*fontStructs, aPixelsToTwips);
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nsString& fontName = aFont->name;
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fontName.Truncate();
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for (;;) {
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AppendFontName(*fontStructs, fontName, fontDisplay);
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++fontStructs;
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--numFonts;
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if (numFonts == 0)
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break;
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fontName.AppendWithConversion(",");
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}
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printf("\n\n");
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#endif
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::XGetFontProperty( fontInfo, XA_FAMILY_NAME, &pr );
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if (!pr)
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::XGetFontProperty( fontInfo, XA_FULL_NAME, &pr );
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if (pr) {
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char *fontName = XGetAtomName( GDK_FONT_XDISPLAY(theFont), pr );
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aFont->name.AssignWithConversion( fontName );
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::XFree( fontName );
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}
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// WEIGHT_NAME seems more reliable than WEIGHT, where 10 can mean
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// anything. Check both, and make it bold if either says so.
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pr = 0;
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Atom weightName = XInternAtom( GDK_FONT_XDISPLAY(theFont),
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"WEIGHT_NAME", True );
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if (weightName != None) {
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::XGetFontProperty( fontInfo, weightName, &pr );
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if (pr) {
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char *weight = XGetAtomName( GDK_FONT_XDISPLAY(theFont), pr );
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if (nsCRT::strcasecmp(weight, "bold") == 0)
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aFont->weight = NS_FONT_WEIGHT_BOLD;
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::XFree( weight );
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}
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}
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pr = 0;
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::XGetFontProperty( fontInfo, XA_WEIGHT, &pr );
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if ( pr > 10 )
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aFont->weight = NS_FONT_WEIGHT_BOLD;
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pr = 0;
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Atom pixelSizeAtom = ::XInternAtom(GDK_DISPLAY(), "PIXEL_SIZE", 0);
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::XGetFontProperty( fontInfo, pixelSizeAtom, &pr );
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if (pr)
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aFont->size = NSIntPixelsToTwips(pr, aPixelsToTwips);
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status = NS_OK;
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}
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return status;
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return NS_OK;
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}
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