Remove unused (by clients) SkUnitMapper (https://codereview.chromium.org/283273002/)

samplecode/SampleUnitMapper.cpp

Index: samplecode/SampleUnitMapper.cpp
diff --git a/samplecode/SampleUnitMapper.cpp b/samplecode/SampleUnitMapper.cpp
deleted file mode 100644
index db9af09f38f22d6d0f418efce62115c3e6db7dbc..0000000000000000000000000000000000000000
--- a/samplecode/SampleUnitMapper.cpp
+++ /dev/null
@@ -1,172 +0,0 @@
-
-/*
- * 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 "SampleCode.h"
-#include "SkView.h"
-#include "SkCanvas.h"
-#include "SkDevice.h"
-#include "SkPaint.h"
-#include "SkUnitMappers.h"
-#include "SkCubicInterval.h"
-
-#include "SkWidgetViews.h"
-
-static SkStaticTextView* make_textview(SkView* parent,
-                                       const SkRect& bounds,
-                                       const SkPaint& paint) {
-    SkStaticTextView* view = new SkStaticTextView;
-    view->setMode(SkStaticTextView::kFixedSize_Mode);
-    view->setPaint(paint);
-    view->setVisibleP(true);
-    view->setSize(bounds.width(), bounds.height());
-    view->setLoc(bounds.fLeft, bounds.fTop);
-    parent->attachChildToFront(view)->unref();
-    return view;
-}
-
-static void set_scalar(SkStaticTextView* view, SkScalar value) {
-    SkString str;
-    str.appendScalar(value);
-    view->setText(str);
-}
-
-class UnitMapperView : public SampleView {
-    SkPoint fPts[4];
-    SkMatrix fMatrix;
-    SkStaticTextView* fViews[4];
-
-    void setViews() {
-        set_scalar(fViews[0], fPts[1].fX);
-        set_scalar(fViews[1], fPts[1].fY);
-        set_scalar(fViews[2], fPts[2].fX);
-        set_scalar(fViews[3], fPts[2].fY);
-    }
-
-public:
-    UnitMapperView() {
-        fPts[0].set(0, 0);
-        fPts[1].set(SK_Scalar1 / 3, SK_Scalar1 / 3);
-        fPts[2].set(SK_Scalar1 * 2 / 3, SK_Scalar1 * 2 / 3);
-        fPts[3].set(SK_Scalar1, SK_Scalar1);
-
-        fMatrix.setScale(SK_Scalar1 * 200, -SK_Scalar1 * 200);
-        fMatrix.postTranslate(SkIntToScalar(100), SkIntToScalar(300));
-
-        SkRect r = {
-            SkIntToScalar(350), SkIntToScalar(100),
-            SkIntToScalar(500), SkIntToScalar(130)
-        };
-        SkPaint paint;
-        paint.setAntiAlias(true);
-        paint.setTextSize(SkIntToScalar(25));
-        for (int i = 0; i < 4; i++) {
-            fViews[i] = make_textview(this, r, paint);
-            r.offset(0, r.height());
-        }
-        this->setViews();
-    }
-
-protected:
-    // overrides from SkEventSink
-    virtual bool onQuery(SkEvent* evt) {
-        if (SampleCode::TitleQ(*evt)) {
-            SampleCode::TitleR(evt, "UnitMapper");
-            return true;
-        }
-        return this->INHERITED::onQuery(evt);
-    }
-
-    virtual void onDrawContent(SkCanvas* canvas) {
-        SkPaint paint;
-        paint.setAntiAlias(true);
-        paint.setColor(0xFF8888FF);
-
-        SkRect r = { 0, 0, SK_Scalar1, SK_Scalar1 };
-
-        canvas->concat(fMatrix);
-        canvas->drawRect(r, paint);
-
-        paint.setColor(SK_ColorBLACK);
-        paint.setStyle(SkPaint::kStroke_Style);
-        paint.setStrokeWidth(0);
-        paint.setStrokeCap(SkPaint::kRound_Cap);
-
-        SkPath path;
-        path.moveTo(fPts[0]);
-        path.cubicTo(fPts[1], fPts[2], fPts[3]);
-        canvas->drawPath(path, paint);
-
-        paint.setColor(SK_ColorRED);
-        paint.setStrokeWidth(0);
-        canvas->drawLine(0, 0, SK_Scalar1, SK_Scalar1, paint);
-
-        paint.setColor(SK_ColorBLUE);
-        paint.setStrokeWidth(SK_Scalar1 / 60);
-        for (int i = 0; i < 50; i++) {
-            SkScalar x = i * SK_Scalar1 / 49;
-            canvas->drawPoint(x, SkEvalCubicInterval(&fPts[1], x), paint);
-        }
-
-        paint.setStrokeWidth(SK_Scalar1 / 20);
-        paint.setColor(SK_ColorGREEN);
-        canvas->drawPoints(SkCanvas::kPoints_PointMode, 2, &fPts[1], paint);
-    }
-
-    bool invertPt(SkScalar x, SkScalar y, SkPoint* result) {
-        if (NULL == result)
-            return true;
-
-        SkMatrix m;
-        if (!fMatrix.invert(&m)) {
-            return false;
-        }
-
-        m.mapXY(x, y, result);
-        return true;
-    }
-
-    int hittest(SkScalar x, SkScalar y) {
-        SkPoint target = { x, y };
-        SkPoint pts[2] = { fPts[1], fPts[2] };
-        fMatrix.mapPoints(pts, 2);
-        for (int i = 0; i < 2; i++) {
-            if (SkPoint::Distance(pts[i], target) < SkIntToScalar(4)) {
-                return i + 1;
-            }
-        }
-        return -1;
-    }
-
-    virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y, unsigned) SK_OVERRIDE {
-        fDragIndex = hittest(x, y);
-        return fDragIndex >= 0 ? new Click(this) : NULL;
-    }
-
-    virtual bool onClick(Click* click) {
-        if (fDragIndex >= 0) {
-            if (!invertPt(click->fCurr.fX, click->fCurr.fY,
-                          &fPts[fDragIndex])) {
-                return false;
-            }
-
-            this->setViews();
-            this->inval(NULL);
-            return true;
-        }
-        return false;
-    }
-
-private:
-    int fDragIndex;
-
-    typedef SampleView INHERITED;
-};
-
-//////////////////////////////////////////////////////////////////////////////
-
-static SkView* MyFactory() { return new UnitMapperView; }
-static SkViewRegister reg(MyFactory);