Remove experimental/PdfViewer

experimental/PdfViewer/SkTracker.h

-/*
- * Copyright 2013 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef SkTracker_DEFINED
-#define SkTracker_DEFINED
-
-#include <stdio.h>
-
-#include "SkBitmap.h"
-#include "SkPoint.h"
-
-// TODO(edisonn): draw plan from point! - list of draw ops of a point, like a tree!
-// TODO(edisonn): Minimal PDF to draw some points - remove everything that it is not needed,
-//                save pdf uncompressed
-
-#define MAX_TRACKING_POINTS 100
-
-/** \class SkTracker
- *
- *   A Tracker can be attached to a SkTrackDevice and it will store the track pixels.
- *   It can be used with SampleApp to investigate bugs (CL not checked in yet).
- *
- *   The Tracker tracks 2 sets of points
- *     A) one which is expected to issue breackpoints if the pixels are changes
- *     B) one which if changes will disable the breackpoint
- *   For point in A) there are two modes:
- *     A.1) a breackpoint require that any of the points is changed
- *     A.2) a breackpoint require that all of the points is changed
- *   Points in B are allways in "any mode" - chaning the value of any pixel, will disable
- *     the breackpoint
- *
- *   Point in A) are used to show what are the areas of interest, while poit in B are used to
- *     disable breackpoints which would be issued in background change.
- *
- */
-class SkTracker {
-public:
-    SkTracker() : fEnabled(false)
-                , fBreakOnAny(false)
-                , fCntExpectedTouched(0)
-                , fCntExpectedUntouched(0)
-                , fHits(0) {}
-
-    virtual ~SkTracker() {}
-
-    // Clears all the points, but preserves the break mode.
-    void clearPoints() {
-        fCntExpectedTouched = 0;
-        fCntExpectedUntouched = 0;
-    }
-
-    // Enable the breackpoints.
-    void enableTracking(bool b) {
-        fEnabled = b;
-    }
-
-    // Returns true if breackpoints are enabled.
-    bool trackingEnabled() {
-        return fEnabled;
-    }
-
-    // Puts the tracker in Any mode.
-    void any() {
-        fBreakOnAny = true;
-    }
-
-    // Puts the tracker in Any mode.
-    void all() {
-        fBreakOnAny = false;
-    }
-
-    // returns true in in All mode. False for Any mode.
-    bool requireAllExpectedTouched() {
-        return !fBreakOnAny;
-    }
-
-    // Returns the numbers of points in which if touched, would trigger a breackpoint.
-    int cntExpectedTouched() {
-        return fCntExpectedTouched;
-    }
-
-    // Returns the points which if touched, would trigger a breackpoint.
-    // the Tracker owns the array
-    const SkIPoint* expectedTouched() {
-        return fExpectedTouched;
-    }
-
-    // Returns the numbers of points in which if touched, would disable a breackpoint.
-    int cntExpectedUntouched() {
-        return fCntExpectedUntouched;
-    }
-
-    // Returns the points which if touched, would disable a breackpoint.
-    // the Tracker owns the array
-    const SkIPoint* expectedUntouched() {
-        return fExpectedUntouched;
-    }
-
-    // Adds a point which if changes in a drawFoo operation, would trigger a breakpoint.
-    bool addExpectTouch(int x, int y) {
-        if (fCntExpectedTouched >= MAX_TRACKING_POINTS) {
-            return false;
-        }
-        if (found(x, y)) {
-            return false;
-        }
-        fExpectedTouched[fCntExpectedTouched] = SkIPoint::Make(x, y);
-        fCntExpectedTouched++;
-        return true;
-    }
-
-    // Adds a point which if changes in a drawFoo operation, would disable a breakpoint.
-    bool addExpectUntouch(int x, int y) {
-        if (fCntExpectedUntouched >= MAX_TRACKING_POINTS) {
-            return false;
-        }
-        if (found(x, y)) {
-            return false;
-        }
-        fExpectedUntouched[fCntExpectedUntouched] = SkIPoint::Make(x, y);
-        fCntExpectedUntouched++;
-        return true;
-    }
-
-    // Starts a new rendering session - reset the number of hits.
-    void newFrame() {
-        fHits = 0;
-    }
-
-    // returns the number of breackpoints issues in this rendering session.
-    int hits() {
-        return fHits;
-    }
-
-    // Called before drawFoo to store the state of the pixels
-    void before(const SkBitmap& bitmap) {
-        if (fCntExpectedTouched == 0) {
-            return;
-        }
-
-        for (int i = 0 ; i < fCntExpectedTouched; i++) {
-            fBeforeTouched[i] = pickColor(bitmap, fExpectedTouched[i].x(), fExpectedTouched[i].y());
-        }
-        for (int i = 0 ; i < fCntExpectedUntouched; i++) {
-            fBeforeUntouched[i] = pickColor(bitmap, fExpectedUntouched[i].x(),
-                                            fExpectedUntouched[i].y());
-        }
-    }
-
-    // Called after drawFoo to evaluate what pixels have changed, it could issue a breakpoint.
-    // any/all of the expected touched has to be changed, and all expected untouched must be intact
-    void after(const SkBitmap& bitmap) {
-        if (fCntExpectedTouched == 0) {
-            return;
-        }
-
-        bool doBreak;
-        if (fBreakOnAny) {
-            doBreak = false;
-            for (int i = 0 ; i < fCntExpectedTouched; i++) {
-                doBreak = doBreak || fBeforeTouched[i] != pickColor(bitmap, fExpectedTouched[i].x(),
-                                                                    fExpectedTouched[i].y());
-            }
-        } else {
-            doBreak = true;
-            for (int i = 0 ; i < fCntExpectedTouched; i++) {
-                doBreak = doBreak && fBeforeTouched[i] != pickColor(bitmap, fExpectedTouched[i].x(),
-                                                                    fExpectedTouched[i].y());
-            }
-        }
-
-        for (int i = 0 ; i < fCntExpectedUntouched; i++) {
-            doBreak = doBreak && fBeforeUntouched[i] == pickColor(bitmap, fExpectedUntouched[i].x(),
-                                                                  fExpectedUntouched[i].y());
-        }
-
-        if (doBreak) {
-            fHits++;
-            if (fEnabled) {
-                breakExecution();
-            }
-        }
-    }
-
-private:
-    inline SkColor pickColor(const SkBitmap& bitmap, int x, int y) {
-        return bitmap.getColor(x, y);
-    }
-
-    void breakExecution() {
-        printf("break;\n");
-    }
-
-    inline bool found(int x, int y) {
-        for (int i = 0 ; i < fCntExpectedTouched; i++) {
-            if (x == fExpectedTouched[i].x() && y == fExpectedTouched[i].y()) {
-                return true;
-            }
-        }
-        for (int i = 0 ; i < fCntExpectedUntouched; i++) {
-            if (x == fExpectedUntouched[i].x() && y == fExpectedUntouched[i].y()) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-
-    bool fEnabled;
-    // break on any change on expected touched or all.
-    bool fBreakOnAny;
-    SkIPoint fExpectedTouched[MAX_TRACKING_POINTS];
-    SkColor fBeforeTouched[MAX_TRACKING_POINTS];
-    int fCntExpectedTouched;
-
-    SkIPoint fExpectedUntouched[MAX_TRACKING_POINTS];
-    SkColor fBeforeUntouched[MAX_TRACKING_POINTS];
-    int fCntExpectedUntouched;
-
-    int fHits;
-};
-
-#endif  // SkTracker_DEFINED