Hook in rough distance field support for fonts

gm/scaletext.cpp

 /*

[robertphillips, 2013/11/05 15:30:26]

Update this?

[jvanverth1, 2013/11/05 17:09:22]

Removed -- it shouldn't have been committed.

  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "gm.h"
 #include "SkTypeface.h"
 
 namespace skiagm {
 

[robertphillips, 2013/11/05 15:30:26]

// raison d'etre

-class FontScalerGM : public GM {
+class ScaleTextGM : public GM {
 public:
-    FontScalerGM() {
+    ScaleTextGM() {
         this->setBGColor(0xFFFFFFFF);
     }
 
-    virtual ~FontScalerGM() {
+    virtual ~ScaleTextGM() {
     }
 
 protected:
     virtual SkString onShortName() {
-        return SkString("fontscaler");
+        return SkString("scaletext");
     }
 
     virtual SkISize onISize() {
         return make_isize(1450, 750);
     }
 
     static void rotate_about(SkCanvas* canvas,
                              SkScalar degrees,
                              SkScalar px, SkScalar py) {
         canvas->translate(px, py);
         canvas->rotate(degrees);
         canvas->translate(-px, -py);
     }
 
     virtual void onDraw(SkCanvas* canvas) {
         SkPaint paint;
 
         paint.setAntiAlias(true);
         paint.setLCDRenderText(true);
         //With freetype the default (normal hinting) can be really ugly.
         //Most distros now set slight (vertical hinting only) in any event.
         paint.setHinting(SkPaint::kSlight_Hinting);
-        SkSafeUnref(paint.setTypeface(SkTypeface::CreateFromName("Times Roman", SkTypeface::kNormal)));
+        SkSafeUnref(paint.setTypeface(SkTypeface::CreateFromName("Times New Roman", SkTypeface::kNormal)));
 
-        const char* text = "Hamburgefons ooo mmm";
+        const char* text = "Thamburgefons ooo mmm";
         const size_t textLen = strlen(text);
 

[robertphillips, 2013/11/05 15:30:26]

Do we need the 'j' loop anymore?

-        for (int j = 0; j < 2; ++j) {
+        for (int j = 0; j < 1; ++j) {

[robertphillips, 2013/11/05 15:30:26]

Remove this comment?

             // This used to do 6 iterations but it causes the N4 to crash in the MSAA4 config.
-            for (int i = 0; i < 5; ++i) {
+            for (int i = 0; i < 2; ++i) {
                 SkScalar x = SkIntToScalar(10);
                 SkScalar y = SkIntToScalar(20);
 
                 SkAutoCanvasRestore acr(canvas, true);
-                canvas->translate(SkIntToScalar(50 + i * 230),
+                canvas->translate(SkIntToScalar(50 + 4*i * 230),
                                   SkIntToScalar(20));
-                rotate_about(canvas, SkIntToScalar(i * 5), x, y * 10);
+                rotate_about(canvas, SkIntToScalar(4*i * 5), x, y * 10);
 
                 {
                     SkPaint p;
                     p.setAntiAlias(true);
                     SkRect r;
                     r.set(x - SkIntToScalar(3), SkIntToScalar(15),
                           x - SkIntToScalar(1), SkIntToScalar(280));
                     canvas->drawRect(r, p);
                 }
 

[robertphillips, 2013/11/05 15:30:26]

What is index for?

                 int index = 0;

[robertphillips, 2013/11/05 15:30:26]

ps seems like a bad name
Should 6 & 50 be constants?

-                for (int ps = 6; ps <= 22; ps++) {
+                for (int ps = 6; ps <= 50; ps += 2) {
                     paint.setTextSize(SkIntToScalar(ps));
                     canvas->drawText(text, textLen, x, y, paint);
                     y += paint.getFontMetrics(NULL);
                     index += 1;
                 }
             }

[robertphillips, 2013/11/05 15:30:26]

Are the next two lines required any more?

             canvas->translate(0, SkIntToScalar(360));
             paint.setSubpixelText(true);
         }
     }
 
 private:
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 

[robertphillips, 2013/11/05 15:30:26]

DEF_GM?

-static GM* MyFactory(void*) { return new FontScalerGM; }
+static GM* MyFactory(void*) { return new ScaleTextGM; }
 static GMRegistry reg(MyFactory);
 
 }