add FilterLevel API to SkPaint, replacing various Flag bits

src/core/SkPaint.cpp

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkPaint.h"
 #include "SkAnnotation.h"
@@ skipping 187 matching lines @@
 }
 
 void SkPaint::setPaintOptionsAndroid(const SkPaintOptionsAndroid& options) {
     if (options != fPaintOptionsAndroid) {
         fPaintOptionsAndroid = options;
         GEN_ID_INC;
     }
 }
 #endif
 
+SkPaint::FilterLevel SkPaint::getFilterLevel() const {
+    int level = 0;
+    if (fFlags & kFilterBitmap_Flag) {
+        level |= 1;
+    }
+    if (fFlags & kHighQualityFilterBitmap_Flag) {
+        level |= 2;
+    }
+    return (FilterLevel)level;
+}
+
+void SkPaint::setFilterLevel(FilterLevel level) {
+    unsigned mask = kFilterBitmap_Flag | kHighQualityFilterBitmap_Flag;
+    unsigned flags = 0;
+    if (level & 1) {
+        flags |= kFilterBitmap_Flag;
+    }
+    if (level & 2) {
+        flags |= kHighQualityFilterBitmap_Flag;
+    }
+    this->setFlags((fFlags & ~mask) | flags);
+}
+
 void SkPaint::setHinting(Hinting hintingLevel) {
     GEN_ID_INC_EVAL((unsigned) hintingLevel != fHinting);
     fHinting = hintingLevel;
 }
 
 void SkPaint::setFlags(uint32_t flags) {
     GEN_ID_INC_EVAL(fFlags != flags);
     fFlags = flags;
 }
 
@@ skipping 38 matching lines @@
 }
 
 void SkPaint::setFakeBoldText(bool doFakeBold) {
     this->setFlags(SkSetClearMask(fFlags, doFakeBold, kFakeBoldText_Flag));
 }
 
 void SkPaint::setDevKernText(bool doDevKern) {
     this->setFlags(SkSetClearMask(fFlags, doDevKern, kDevKernText_Flag));
 }
 
-void SkPaint::setFilterBitmap(bool doFilter) {
-    this->setFlags(SkSetClearMask(fFlags, doFilter, kFilterBitmap_Flag));
-}
-
 void SkPaint::setStyle(Style style) {
     if ((unsigned)style < kStyleCount) {
         GEN_ID_INC_EVAL((unsigned)style != fStyle);
         fStyle = style;
     } else {
 #ifdef SK_REPORT_API_RANGE_CHECK
         SkDebugf("SkPaint::setStyle(%d) out of range\n", style);
 #endif
     }
 }
@@ skipping 2303 matching lines @@
             case SkXfermode::kPlus_Mode:
                 return 0 == this->getAlpha();
             case SkXfermode::kDst_Mode:
                 return true;
             default:
                 break;
         }
     }
     return false;
 }