blob: ec9c2282b2192fdf53a715e143438441291384a6 [file] [log] [blame]
bungeman@google.com0f0c2882011-11-04 15:47:41 +00001/*
2 * Copyright 2011 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#include "gm.h"
8#include "SkTypeface.h"
9
10namespace skiagm {
11
bungeman@google.com0f0c2882011-11-04 15:47:41 +000012class FontScalerGM : public GM {
13public:
14 FontScalerGM() {
15 this->setBGColor(0xFFFFFFFF);
bungeman@google.com0f0c2882011-11-04 15:47:41 +000016 }
17
18 virtual ~FontScalerGM() {
bungeman@google.com0f0c2882011-11-04 15:47:41 +000019 }
20
21protected:
22 virtual SkString onShortName() {
23 return SkString("fontscaler");
24 }
25
26 virtual SkISize onISize() {
bungeman@google.com24babf42011-11-07 16:33:40 +000027 return make_isize(1450, 750);
bungeman@google.com0f0c2882011-11-04 15:47:41 +000028 }
29
bungeman@google.coma682b932012-01-05 18:10:48 +000030 static void rotate_about(SkCanvas* canvas,
31 SkScalar degrees,
32 SkScalar px, SkScalar py) {
bungeman@google.com0f0c2882011-11-04 15:47:41 +000033 canvas->translate(px, py);
34 canvas->rotate(degrees);
35 canvas->translate(-px, -py);
36 }
37
38 virtual void onDraw(SkCanvas* canvas) {
39 SkPaint paint;
40
bungeman@google.com0f0c2882011-11-04 15:47:41 +000041 paint.setAntiAlias(true);
42 paint.setLCDRenderText(true);
43 //With freetype the default (normal hinting) can be really ugly.
44 //Most distros now set slight (vertical hinting only) in any event.
45 paint.setHinting(SkPaint::kSlight_Hinting);
46 SkSafeUnref(paint.setTypeface(SkTypeface::CreateFromName("Times Roman", SkTypeface::kNormal)));
47
bungeman@google.com0f0c2882011-11-04 15:47:41 +000048 const char* text = "Hamburgefons ooo mmm";
49 const size_t textLen = strlen(text);
50
51 for (int j = 0; j < 2; ++j) {
52 for (int i = 0; i < 6; ++i) {
53 SkScalar x = SkIntToScalar(10);
54 SkScalar y = SkIntToScalar(20);
55
56 SkAutoCanvasRestore acr(canvas, true);
57 canvas->translate(SkIntToScalar(50 + i * 230),
58 SkIntToScalar(20));
59 rotate_about(canvas, SkIntToScalar(i * 5), x, y * 10);
60
61 {
62 SkPaint p;
63 p.setAntiAlias(true);
64 SkRect r;
bungeman@google.coma682b932012-01-05 18:10:48 +000065 r.set(x - SkIntToScalar(3), SkIntToScalar(15),
66 x - SkIntToScalar(1), SkIntToScalar(280));
bungeman@google.com0f0c2882011-11-04 15:47:41 +000067 canvas->drawRect(r, p);
68 }
69
70 int index = 0;
71 for (int ps = 6; ps <= 22; ps++) {
72 paint.setTextSize(SkIntToScalar(ps));
73 canvas->drawText(text, textLen, x, y, paint);
74 y += paint.getFontMetrics(NULL);
75 index += 1;
76 }
77 }
bungeman@google.coma682b932012-01-05 18:10:48 +000078 canvas->translate(0, SkIntToScalar(360));
bungeman@google.com0f0c2882011-11-04 15:47:41 +000079 paint.setSubpixelText(true);
80 }
81 }
82
reed@google.com9cd1ef52013-03-08 13:31:26 +000083#ifdef SK_BUILD_FOR_ANDROID
84 virtual uint32_t onGetFlags() const SK_OVERRIDE {
85 // On android, we fail due to bad gpu drivers (it seems) by adding too
86 // much to our text atlas (texture).
87 return kSkipGPU_Flag;
88 }
89#endif
90
bungeman@google.com0f0c2882011-11-04 15:47:41 +000091private:
bungeman@google.com0f0c2882011-11-04 15:47:41 +000092 typedef GM INHERITED;
93};
94
95//////////////////////////////////////////////////////////////////////////////
borenet@google.com0682ca62012-06-26 17:23:52 +000096
bungeman@google.com0f0c2882011-11-04 15:47:41 +000097static GM* MyFactory(void*) { return new FontScalerGM; }
98static GMRegistry reg(MyFactory);
borenet@google.com0682ca62012-06-26 17:23:52 +000099
bungeman@google.com0f0c2882011-11-04 15:47:41 +0000100}