b=403513 bad kerning in print output if hinting is set to medium or full r=karlt sr=vlad

content/canvas/src/nsCanvasRenderingContext2D.cpp

@@ -1967,13 +1967,17 @@ nsCanvasRenderingContext2D::SetFont(const nsAString& font)
     // un-zoom the font size to avoid being affected by text-only zoom
     const nscoord fontSize = nsStyleFont::UnZoomText(parentContext->PresContext(), fontStyle->mFont.size);
 
+    PRBool printerFont = (presShell->GetPresContext()->Type() == nsPresContext::eContext_PrintPreview ||
+                          presShell->GetPresContext()->Type() == nsPresContext::eContext_Print);
+
     gfxFontStyle style(fontStyle->mFont.style,
                        fontStyle->mFont.weight,
                        NSAppUnitsToFloatPixels(fontSize, aupcp),
                        langGroup,
                        fontStyle->mFont.sizeAdjust,
                        fontStyle->mFont.systemFont,
-                       fontStyle->mFont.familyNameQuirks);
+                       fontStyle->mFont.familyNameQuirks,
+                       printerFont);
 
     CurrentState().fontGroup = gfxPlatform::GetPlatform()->CreateFontGroup(fontStyle->mFont.name, &style, presShell->GetPresContext()->GetUserFontSet());
     NS_ASSERTION(CurrentState().fontGroup, "Could not get font group");

gfx/src/thebes/nsThebesDeviceContext.cpp

@@ -148,6 +148,12 @@ nsThebesDeviceContext::Shutdown()
     gSystemFonts = nsnull;
 }
 
+PRBool
+nsThebesDeviceContext::IsPrinterSurface()
+{
+  return(mPrintingSurface != NULL);
+}
+
 nsresult
 nsThebesDeviceContext::SetDPI()
 {

gfx/src/thebes/nsThebesDeviceContext.h

@@ -118,6 +118,8 @@ public:
 
     virtual PRBool SetPixelScale(float aScale);
 
+    PRBool IsPrinterSurface(void);
+
     nsNativeWidget GetWidget() { return mWidget; }
 #if defined(XP_WIN) || defined(XP_OS2)
     HDC GetPrintHDC();

gfx/src/thebes/nsThebesFontMetrics.cpp

@@ -83,9 +83,11 @@ nsThebesFontMetrics::Init(const nsFont& aFont, nsIAtom* aLangGroup,
         langGroup.Assign(lg);
     }
 
+    PRBool printerFont = mDeviceContext->IsPrinterSurface();
     mFontStyle = new gfxFontStyle(aFont.style, aFont.weight, size, langGroup,
                                   aFont.sizeAdjust, aFont.systemFont,
-                                  aFont.familyNameQuirks);
+                                  aFont.familyNameQuirks,
+                                  printerFont);
 
     mFontGroup =
         gfxPlatform::GetPlatform()->CreateFontGroup(aFont.name, mFontStyle, 

gfx/thebes/public/gfxFont.h

@@ -78,7 +78,8 @@ struct THEBES_API gfxFontStyle {
     gfxFontStyle(PRUint8 aStyle, PRUint16 aWeight, gfxFloat aSize,
                  const nsACString& aLangGroup,
                  float aSizeAdjust, PRPackedBool aSystemFont,
-                 PRPackedBool aFamilyNameQuirks);
+                 PRPackedBool aFamilyNameQuirks,
+                 PRPackedBool aPrinterFont);
     gfxFontStyle(const gfxFontStyle& aStyle);
 
     // The style of font (normal, italic, oblique)
@@ -89,6 +90,9 @@ struct THEBES_API gfxFontStyle {
     // sources.
     PRPackedBool systemFont : 1;
 
+    // Say that this font is used for print or print preview.
+    PRPackedBool printerFont : 1;
+
     // True if the character set quirks (for treatment of "Symbol",
     // "Wingdings", etc.) should be applied.
     PRPackedBool familyNameQuirks : 1;
@@ -133,6 +137,7 @@ struct THEBES_API gfxFontStyle {
         return (size == other.size) &&
             (style == other.style) &&
             (systemFont == other.systemFont) &&
+            (printerFont == other.printerFont) &&
             (familyNameQuirks == other.familyNameQuirks) &&
             (weight == other.weight) &&
             (langGroup.Equals(other.langGroup)) &&

gfx/thebes/src/gfxFont.cpp

@@ -1227,8 +1227,8 @@ gfxFontGroup::GetGeneration()
 #define DEFAULT_PIXEL_FONT_SIZE 16.0f
 
 gfxFontStyle::gfxFontStyle() :
-    style(FONT_STYLE_NORMAL), systemFont(PR_TRUE), familyNameQuirks(PR_FALSE),
-    weight(FONT_WEIGHT_NORMAL), size(DEFAULT_PIXEL_FONT_SIZE),
+    style(FONT_STYLE_NORMAL), systemFont(PR_TRUE), printerFont(PR_FALSE), 
+    familyNameQuirks(PR_FALSE), weight(FONT_WEIGHT_NORMAL), size(DEFAULT_PIXEL_FONT_SIZE),
     langGroup(NS_LITERAL_CSTRING("x-western")), sizeAdjust(0.0f)
 {
 }
@@ -1236,8 +1236,9 @@ gfxFontStyle::gfxFontStyle() :
 gfxFontStyle::gfxFontStyle(PRUint8 aStyle, PRUint16 aWeight, gfxFloat aSize,
                            const nsACString& aLangGroup,
                            float aSizeAdjust, PRPackedBool aSystemFont,
-                           PRPackedBool aFamilyNameQuirks) :
-    style(aStyle), systemFont(aSystemFont),
+                           PRPackedBool aFamilyNameQuirks,
+                           PRPackedBool aPrinterFont):
+    style(aStyle), systemFont(aSystemFont), printerFont(aPrinterFont),
     familyNameQuirks(aFamilyNameQuirks), weight(aWeight),
     size(aSize), langGroup(aLangGroup), sizeAdjust(aSizeAdjust)
 {
@@ -1261,7 +1262,7 @@ gfxFontStyle::gfxFontStyle(PRUint8 aStyle, PRUint16 aWeight, gfxFloat aSize,
 }
 
 gfxFontStyle::gfxFontStyle(const gfxFontStyle& aStyle) :
-    style(aStyle.style), systemFont(aStyle.systemFont),
+    style(aStyle.style), systemFont(aStyle.systemFont), printerFont(aStyle.printerFont),
     familyNameQuirks(aStyle.familyNameQuirks), weight(aStyle.weight),
     size(aStyle.size), langGroup(aStyle.langGroup),
     sizeAdjust(aStyle.sizeAdjust)

gfx/thebes/src/gfxPangoFonts.cpp

@@ -1712,7 +1712,7 @@ static void ApplyGdkScreenFontOptions(FcPattern *aPattern);
 // Apply user settings and defaults to pattern in preparation for matching.
 static void
 PrepareSortPattern(FcPattern *aPattern, double aFallbackSize,
-                   double aSizeAdjustFactor)
+                   double aSizeAdjustFactor, PRBool aIsPrinterFont)
 {
     FcConfigSubstitute(NULL, aPattern, FcMatchPattern);
 
@@ -1728,8 +1728,17 @@ PrepareSortPattern(FcPattern *aPattern, double aFallbackSize,
     // Using an xlib surface would also be an option to get Screen font
     // options for non-GTK X11 toolkits, but less efficient than using GDK to
     // pick up dynamic changes.
+    if(aIsPrinterFont) {
+       cairo_font_options_t *options = cairo_font_options_create();
+       cairo_font_options_set_hint_style (options, CAIRO_HINT_STYLE_NONE);
+       cairo_font_options_set_antialias (options, CAIRO_ANTIALIAS_GRAY);
+       cairo_ft_font_options_substitute(options, aPattern);
+       cairo_font_options_destroy(options);
+    }
 #ifdef MOZ_WIDGET_GTK2
-    ApplyGdkScreenFontOptions(aPattern);
+    else {
+       ApplyGdkScreenFontOptions(aPattern);
+    }
 #endif
 
     // Protect against any fontconfig settings that may have incorrectly
@@ -1752,7 +1761,9 @@ gfx_pango_font_map_context_substitute(PangoFcFontMap *fontmap,
     // owned by the context
     PangoFontDescription *desc = pango_context_get_font_description(context);
     double size = pango_font_description_get_size(desc) / FLOAT_PANGO_SCALE;
-    PrepareSortPattern(pattern, size, 1.0);
+    gfxPangoFontGroup *fontGroup = GetFontGroup(context);
+    PRBool usePrinterFont = fontGroup && fontGroup->GetStyle()->printerFont;
+    PrepareSortPattern(pattern, size, 1.0, usePrinterFont);
 }
 
 static PangoFcFont *
@@ -1968,7 +1979,7 @@ gfxPangoFontGroup::MakeFontSet(PangoLanguage *aLang, gfxFloat aSizeAdjustFactor,
     nsAutoRef<FcPattern> pattern
         (gfxFontconfigUtils::NewPattern(fcFamilyList, mStyle, lang));
 
-    PrepareSortPattern(pattern, mStyle.size, aSizeAdjustFactor);
+    PrepareSortPattern(pattern, mStyle.size, aSizeAdjustFactor, mStyle.printerFont);
 
     nsRefPtr<gfxFcPangoFontSet> fontset =
         new gfxFcPangoFontSet(pattern, mUserFontSet);
@@ -2144,7 +2155,7 @@ gfxFcFont::GetOrMakeFont(FcPattern *aPattern)
         // string through FcNameUnparse() is more trouble than it's worth.
         NS_NAMED_LITERAL_CSTRING(langGroup, "x-unicode");
         gfxFontStyle fontStyle(style, weight, size, langGroup, 0.0,
-                               PR_TRUE, PR_FALSE);
+                               PR_TRUE, PR_FALSE, PR_FALSE);
 
         nsRefPtr<gfxFontEntry> fe;
         FcChar8 *fc_file;

layout/svg/base/src/nsSVGGlyphFrame.cpp

@@ -1263,9 +1263,12 @@ nsSVGGlyphFrame::EnsureTextRun(float *aDrawScale, float *aMetricsScale,
     }
 
     const nsFont& font = fontData->mFont;
+    PRBool printerFont = (presContext->Type() == nsPresContext::eContext_PrintPreview ||
+                          presContext->Type() == nsPresContext::eContext_Print);
     gfxFontStyle fontStyle(font.style, font.weight, textRunSize, langGroup,
                            font.sizeAdjust, font.systemFont,
-                           font.familyNameQuirks);
+                           font.familyNameQuirks,
+                           printerFont);
 
     nsRefPtr<gfxFontGroup> fontGroup =
       gfxPlatform::GetPlatform()->CreateFontGroup(font.name, &fontStyle, presContext->GetUserFontSet());