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/gm.h"
9 #include "include/core/SkCanvas.h"
10 #include "include/core/SkColor.h"
11 #include "include/core/SkFont.h"
12 #include "include/core/SkFontTypes.h"
13 #include "include/core/SkPaint.h"
14 #include "include/core/SkPath.h"
15 #include "include/core/SkPoint.h"
16 #include "include/core/SkScalar.h"
17 #include "include/core/SkTextBlob.h"
18 #include "include/core/SkTypeface.h"
19 #include "include/private/base/SkTemplates.h"
20 #include "src/base/SkRandom.h"
21 #include "src/core/SkFontPriv.h"
22 #include "tools/ToolUtils.h"
23 #include "tools/fonts/FontToolUtils.h"
24
25 #include <string.h>
26
27 using namespace skia_private;
28
strokePath(SkCanvas * canvas,const SkPath & path)29 static void strokePath(SkCanvas* canvas, const SkPath& path) {
30 SkPaint paint;
31 paint.setAntiAlias(true);
32 paint.setColor(SK_ColorRED);
33 paint.setStyle(SkPaint::kStroke_Style);
34 canvas->drawPath(path, paint);
35 }
36 DEF_SIMPLE_GM(getpostextpath, canvas, 480, 780) {
37 // explicitly add spaces, to test a prev. bug
38 const char* text = "Ham bur ge fons";
39 size_t len = strlen(text);
40 SkPath path;
41
42 SkFont font = ToolUtils::DefaultPortableFont();
43 font.setSize(48);
44
45 SkPaint paint;
46 paint.setAntiAlias(true);
47
48 canvas->translate(SkIntToScalar(10), SkIntToScalar(64));
49
50 canvas->drawSimpleText(text, len, SkTextEncoding::kUTF8, 0, 0, font, paint);
51 ToolUtils::get_text_path(font, text, len, SkTextEncoding::kUTF8, &path, nullptr);
52 strokePath(canvas, path);
53 path.reset();
54
55 SkAutoToGlyphs atg(font, text, len, SkTextEncoding::kUTF8);
56 const int count = atg.count();
57 AutoTArray<SkPoint> pos(count);
58 AutoTArray<SkScalar> widths(count);
59 font.getWidths(atg.glyphs(), count, &widths[0]);
60
61 SkRandom rand;
62 SkScalar x = SkIntToScalar(20);
63 SkScalar y = SkIntToScalar(100);
64 for (int i = 0; i < count; ++i) {
65 pos[i].set(x, y + rand.nextSScalar1() * 24);
66 x += widths[i];
67 }
68
69 canvas->translate(0, SkIntToScalar(64));
70
71 canvas->drawTextBlob(SkTextBlob::MakeFromPosText(text, len, &pos[0], font), 0, 0, paint);
72 ToolUtils::get_text_path(font, text, len, SkTextEncoding::kUTF8, &path, &pos[0]);
73 strokePath(canvas, path);
74 }
75