1 /*
2 * Copyright 2012 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "gm.h"
9 #include "SkCanvas.h"
10 #include "SkPaint.h"
11 #include "SkRandom.h"
12 #include "SkTemplates.h"
13
14 class GetPosTextPathGM : public skiagm::GM {
15 public:
GetPosTextPathGM()16 GetPosTextPathGM() {}
17
18 protected:
19
onShortName()20 SkString onShortName() override {
21 return SkString("getpostextpath");
22 }
23
onISize()24 SkISize onISize() override { return SkISize::Make(480, 780); }
25
strokePath(SkCanvas * canvas,const SkPath & path)26 static void strokePath(SkCanvas* canvas, const SkPath& path) {
27 SkPaint paint;
28 paint.setAntiAlias(true);
29 paint.setColor(SK_ColorRED);
30 paint.setStyle(SkPaint::kStroke_Style);
31 canvas->drawPath(path, paint);
32 }
33
onDraw(SkCanvas * canvas)34 void onDraw(SkCanvas* canvas) override {
35 // explicitly add spaces, to test a prev. bug
36 const char* text = "Ham bur ge fons";
37 int len = SkToInt(strlen(text));
38 SkPath path;
39
40 SkPaint paint;
41 paint.setAntiAlias(true);
42 sk_tool_utils::set_portable_typeface(&paint);
43 paint.setTextSize(SkIntToScalar(48));
44
45 canvas->translate(SkIntToScalar(10), SkIntToScalar(64));
46
47 canvas->drawText(text, len, 0, 0, paint);
48 paint.getTextPath(text, len, 0, 0, &path);
49 strokePath(canvas, path);
50 path.reset();
51
52 SkAutoTArray<SkPoint> pos(len);
53 SkAutoTArray<SkScalar> widths(len);
54 paint.getTextWidths(text, len, &widths[0]);
55
56 SkRandom rand;
57 SkScalar x = SkIntToScalar(20);
58 SkScalar y = SkIntToScalar(100);
59 for (int i = 0; i < len; ++i) {
60 pos[i].set(x, y + rand.nextSScalar1() * 24);
61 x += widths[i];
62 }
63
64 canvas->translate(0, SkIntToScalar(64));
65
66 canvas->drawPosText(text, len, &pos[0], paint);
67 paint.getPosTextPath(text, len, &pos[0], &path);
68 strokePath(canvas, path);
69 }
70 };
71
72 //////////////////////////////////////////////////////////////////////////////
73
F(void *)74 static skiagm::GM* F(void*) { return new GetPosTextPathGM; }
75 static skiagm::GMRegistry gR(F);
76