change textutils to require font param

Bug: skia:
Change-Id: I8ba252e3fc5c0970fd9d83f73c32b68f3c68452e
Reviewed-on: https://skia-review.googlesource.com/c/180771
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
Auto-Submit: Mike Reed <reed@google.com>
diff --git a/samplecode/SampleAAGeometry.cpp b/samplecode/SampleAAGeometry.cpp
index 397ba5f..9208ad1 100644
--- a/samplecode/SampleAAGeometry.cpp
+++ b/samplecode/SampleAAGeometry.cpp
@@ -491,7 +491,7 @@
     static const int kMaxStateCount = 3;
     SkPaint fDisabled;
     SkPaint fStates[kMaxStateCount];
-    SkPaint fLabel;
+    SkFont  fLabelFont;
 
     ButtonPaints() {
         fStates[0].setAntiAlias(true);
@@ -501,9 +501,7 @@
         fStates[1].setStrokeWidth(3);
         fStates[2] = fStates[1];
         fStates[2].setColor(0xFFcf0000);
-        fLabel.setAntiAlias(true);
-        fLabel.setTextSize(25.0f);
-        fLabel.setStyle(SkPaint::kFill_Style);
+        fLabelFont.setSize(25.0f);
     }
 };
 
@@ -542,8 +540,8 @@
             return;
         }
         canvas->drawRect(fBounds, paints.fStates[fState]);
-        SkTextUtils::DrawText(canvas, &fLabel, 1, fBounds.centerX(), fBounds.fBottom - 5,
-                              paints.fLabel, SkTextUtils::kCenter_Align);
+        SkTextUtils::Draw(canvas, &fLabel, 1, kUTF8_SkTextEncoding, fBounds.centerX(), fBounds.fBottom - 5,
+                          paints.fLabelFont, SkPaint(), SkTextUtils::kCenter_Align);
     }
 
     void toggle() {
@@ -791,8 +789,8 @@
     SkPaint fActivePaint;
     SkPaint fComplexPaint;
     SkPaint fCoveragePaint;
-    SkPaint fLegendLeftPaint;
-    SkPaint fLegendRightPaint;
+    SkFont fLegendLeftFont;
+    SkFont fLegendRightFont;
     SkPaint fPointPaint;
     SkPaint fSkeletonPaint;
     SkPaint fLightSkeletonPaint;
@@ -866,9 +864,8 @@
         fActivePaint.setStrokeWidth(5);
         fComplexPaint = fActivePaint;
         fComplexPaint.setColor(SK_ColorBLUE);
-        fLegendLeftPaint.setAntiAlias(true);
-        fLegendLeftPaint.setTextSize(13);
-        fLegendRightPaint = fLegendLeftPaint;
+        fLegendLeftFont.setSize(13);
+        fLegendRightFont = fLegendLeftFont;
         construct_path(fPath);
         fFillButton.fVisible = fSkeletonButton.fVisible = fFilterButton.fVisible
                 = fBisectButton.fVisible = fJoinButton.fVisible = fInOutButton.fVisible = true;
@@ -1815,12 +1812,11 @@
     SkScalar bottomOffset = this->height() - 10;
     for (int index = kKeyCommandCount - 1; index >= 0; --index) {
         bottomOffset -= 15;
-        SkTextUtils::DrawString(canvas, kKeyCommandList[index].fDescriptionL,
-                this->width() - 160, bottomOffset,
-                fLegendLeftPaint);
+        SkTextUtils::DrawString(canvas, kKeyCommandList[index].fDescriptionL, this->width() - 160, bottomOffset,
+                                fLegendLeftFont, SkPaint());
         SkTextUtils::DrawString(canvas, kKeyCommandList[index].fDescriptionR,
                 this->width() - 20, bottomOffset,
-                fLegendRightPaint, SkTextUtils::kRight_Align);
+                fLegendRightFont, SkPaint(), SkTextUtils::kRight_Align);
     }
 }
 
diff --git a/samplecode/SampleArc.cpp b/samplecode/SampleArc.cpp
index 4e11301..58e4057 100644
--- a/samplecode/SampleArc.cpp
+++ b/samplecode/SampleArc.cpp
@@ -104,15 +104,13 @@
     }
 
     static void DrawLabel(SkCanvas* canvas, const SkRect& rect, SkScalar start, SkScalar sweep) {
-        SkPaint paint;
-        paint.setAntiAlias(true);
-
+        SkFont font;
         SkString    str;
         str.appendScalar(start);
         str.append(", ");
         str.appendScalar(sweep);
-        SkTextUtils::DrawString(canvas, str, rect.centerX(),
-                         rect.fBottom + paint.getTextSize() * 5/4, paint,
+        SkTextUtils::DrawString(canvas, str.c_str(), rect.centerX(),
+                         rect.fBottom + font.getSize() * 5/4, font, SkPaint(),
                                 SkTextUtils::kCenter_Align);
     }
 
diff --git a/samplecode/SampleAtlas.cpp b/samplecode/SampleAtlas.cpp
index 652ef14..946c5e5 100644
--- a/samplecode/SampleAtlas.cpp
+++ b/samplecode/SampleAtlas.cpp
@@ -45,7 +45,6 @@
     SkCanvas* canvas = surface->getCanvas();
 
     SkPaint paint;
-    paint.setAntiAlias(true);
     SkRandom rand;
 
     const SkScalar half = cellSize * SK_ScalarHalf;
@@ -57,8 +56,8 @@
             paint.setColor(rand.nextU());
             paint.setAlpha(0xFF);
             int index = i % strlen(s);
-            SkTextUtils::DrawText(canvas, &s[index], 1, x + half, y + half + half/2, paint,
-                                  SkTextUtils::kCenter_Align);
+            SkTextUtils::Draw(canvas, &s[index], 1, kUTF8_SkTextEncoding, x + half, y + half + half/2, SkFont(), paint,
+                              SkTextUtils::kCenter_Align);
             i += 1;
         }
     }
diff --git a/samplecode/SampleFilter2.cpp b/samplecode/SampleFilter2.cpp
index e4a43ca..7a7acf0 100644
--- a/samplecode/SampleFilter2.cpp
+++ b/samplecode/SampleFilter2.cpp
@@ -80,25 +80,21 @@
                     x = SkScalarRoundToScalar(x);
                     y = SkScalarRoundToScalar(y);
                     canvas->drawBitmap(fBitmaps[i], x, y, &paint);
+                    SkFont font;
+                    font.setSize(SkIntToScalar(18));
                     if (i == 0) {
-                        SkPaint p;
-                        p.setAntiAlias(true);
-                        p.setTextSize(SkIntToScalar(18));
                         SkString s("dither=");
                         s.appendS32(paint.isDither());
                         s.append(" filter=");
                         s.appendS32(paint.getFilterQuality() != kNone_SkFilterQuality);
-                        SkTextUtils::DrawString(canvas, s, x + W/2, y - p.getTextSize(), p,
+                        SkTextUtils::DrawString(canvas, s.c_str(), x + W/2, y - font.getSize(), font, SkPaint(),
                                                 SkTextUtils::kCenter_Align);
                     }
                     if (k+j == 2) {
-                        SkPaint p;
-                        p.setAntiAlias(true);
-                        p.setTextSize(SkIntToScalar(18));
                         SkString s;
                         s.append(" depth=");
                         s.appendS32(fBitmaps[i].colorType() == kRGB_565_SkColorType ? 16 : 32);
-                        SkTextUtils::DrawString(canvas, s, x + W + SkIntToScalar(4), y + H/2, p);
+                        SkTextUtils::DrawString(canvas, s.c_str(), x + W + SkIntToScalar(4), y + H/2, font, SkPaint());
                     }
                 }
             }
diff --git a/samplecode/SampleQuadStroker.cpp b/samplecode/SampleQuadStroker.cpp
index 270fdc4..ca19de2 100644
--- a/samplecode/SampleQuadStroker.cpp
+++ b/samplecode/SampleQuadStroker.cpp
@@ -503,11 +503,13 @@
         paint.setStyle(SkPaint::kStroke_Style);
         paint.setColor(button.fEnabled ? 0xFF3F0000 : 0x6F3F0000);
         canvas->drawRect(button.fBounds, paint);
-        paint.setTextSize(25.0f);
         paint.setColor(button.fEnabled ? 0xFF3F0000 : 0x6F3F0000);
         paint.setStyle(SkPaint::kFill_Style);
-        SkTextUtils::DrawText(canvas, &button.fLabel, 1, button.fBounds.centerX(), button.fBounds.fBottom - 5,
-                paint, SkTextUtils::kCenter_Align);
+        SkFont font;
+        font.setSize(25.0f);
+        SkTextUtils::Draw(canvas, &button.fLabel, 1, kUTF8_SkTextEncoding,
+                button.fBounds.centerX(), button.fBounds.fBottom - 5,
+                font, paint, SkTextUtils::kCenter_Align);
     }
 
     void draw_control(SkCanvas* canvas, const SkRect& bounds, SkScalar value,
diff --git a/samplecode/SampleTiling.cpp b/samplecode/SampleTiling.cpp
index fc4a5fd..c2c02d8 100644
--- a/samplecode/SampleTiling.cpp
+++ b/samplecode/SampleTiling.cpp
@@ -106,12 +106,11 @@
                 for (size_t ky = 0; ky < SK_ARRAY_COUNT(gModes); ky++) {
                     SkPaint p;
                     SkString str;
-                    p.setAntiAlias(true);
                     p.setDither(true);
                     p.setLooper(fLooper);
                     str.printf("[%s,%s]", gModeNames[kx], gModeNames[ky]);
 
-                    SkTextUtils::DrawString(textCanvas, str, x + r.width()/2, y, p,
+                    SkTextUtils::DrawString(textCanvas, str.c_str(), x + r.width()/2, y, SkFont(), p,
                                             SkTextUtils::kCenter_Align);
 
                     x += r.width() * 4 / 3;
diff --git a/samplecode/SampleXfer.cpp b/samplecode/SampleXfer.cpp
index 6832e8d..bc6b911 100644
--- a/samplecode/SampleXfer.cpp
+++ b/samplecode/SampleXfer.cpp
@@ -52,10 +52,11 @@
         canvas->drawRoundRect(fRect, 8, 8, paint);
 
         paint.setColor(0xFFFFFFFF);
-        paint.setTextSize(16);
-        paint.setLCDRenderText(true);
-        SkTextUtils::DrawString(canvas, fLabel, fRect.centerX(), fRect.fTop + 0.68f * fRect.height(),
-                                paint, SkTextUtils::kCenter_Align);
+        SkFont font;
+        font.setSize(16);
+        font.setEdging(SkFont::Edging::kSubpixelAntiAlias);
+        SkTextUtils::DrawString(canvas, fLabel.c_str(), fRect.centerX(), fRect.fTop + 0.68f * fRect.height(),
+                                font, paint, SkTextUtils::kCenter_Align);
     }
 
     bool hitTest(SkScalar x, SkScalar y) {
diff --git a/samplecode/SampleXfermodesBlur.cpp b/samplecode/SampleXfermodesBlur.cpp
index 0eeab5b..75ad9d1 100644
--- a/samplecode/SampleXfermodesBlur.cpp
+++ b/samplecode/SampleXfermodesBlur.cpp
@@ -10,6 +10,7 @@
 #include "SkBlurMask.h"
 #include "SkCanvas.h"
 #include "SkCornerPathEffect.h"
+#include "SkFont.h"
 #include "SkGradientShader.h"
 #include "SkGraphics.h"
 #include "SkPath.h"
@@ -27,8 +28,8 @@
 #include "SkColorPriv.h"
 #include "SkBlurMaskFilter.h"
 
-static void setNamedTypeface(SkPaint* paint, const char name[]) {
-    paint->setTypeface(SkTypeface::MakeFromName(name, SkFontStyle()));
+static void setNamedTypeface(SkFont* font, const char name[]) {
+    font->setTypeface(SkTypeface::MakeFromName(name, SkFontStyle()));
 }
 
 static uint16_t gBG[] = { 0xFFFF, 0xCCCF, 0xCCCF, 0xFFFF };
@@ -83,29 +84,6 @@
     virtual void onDrawContent(SkCanvas* canvas) {
         canvas->translate(SkIntToScalar(10), SkIntToScalar(20));
 
-        if (false) {
-            SkPaint paint;
-            paint.setAntiAlias(true);
-            paint.setTextSize(50);
-            paint.setTypeface(SkTypeface::MakeFromName("Arial Unicode MS", SkFontStyle()));
-            char buffer[10];
-            size_t len = SkUTF::ToUTF8(0x8500, buffer);
-            canvas->drawText(buffer, len, 40, 40, paint);
-            return;
-        }
-        if (false) {
-            SkPaint paint;
-            paint.setAntiAlias(true);
-
-            SkRect r0 = { 0, 0, 10.5f, 20 };
-            SkRect r1 = { 10.5f, 10, 20, 30 };
-            paint.setColor(SK_ColorRED);
-            canvas->drawRect(r0, paint);
-            paint.setColor(SK_ColorBLUE);
-            canvas->drawRect(r1, paint);
-            return;
-        }
-
         const SkBlendMode gModes[] = {
             SkBlendMode::kClear,
             SkBlendMode::kSrc,
@@ -129,10 +107,9 @@
         auto s = SkShader::MakeBitmapShader(fBG, SkShader::kRepeat_TileMode,
                                             SkShader::kRepeat_TileMode, &m);
 
-        SkPaint labelP;
-        labelP.setAntiAlias(true);
-        labelP.setLCDRenderText(true);
-        setNamedTypeface(&labelP, "Menlo Regular");
+        SkFont font;
+        font.setEdging(SkFont::Edging::kSubpixelAntiAlias);
+        setNamedTypeface(&font, "Menlo Regular");
 
         const int W = 5;
 
@@ -158,7 +135,7 @@
                 canvas->drawRect(r, p);
 
                 const char* label = SkBlendMode_Name(gModes[i]);
-                SkTextUtils::DrawString(canvas, label, x + w/2, y - labelP.getTextSize()/2, labelP,
+                SkTextUtils::DrawString(canvas, label, x + w/2, y - font.getSize()/2, font, SkPaint(),
                                         SkTextUtils::kCenter_Align);
                 x += w + SkIntToScalar(10);
                 if ((i % W) == W - 1) {