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/*
* 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 "gm.h"
#include "SkTypeface.h"
namespace skiagm {
static const struct {
const char* fName;
SkTypeface::Style fStyle;
} gFaces[] = {
{ NULL, SkTypeface::kNormal },
{ NULL, SkTypeface::kBold },
{ "serif", SkTypeface::kNormal },
{ "serif", SkTypeface::kBold },
{ "serif", SkTypeface::kItalic },
{ "serif", SkTypeface::kBoldItalic },
{ "monospace", SkTypeface::kNormal }
};
static const int gFaceCount = SK_ARRAY_COUNT(gFaces);
class FontScalerGM : public GM {
public:
FontScalerGM() {
this->setBGColor(0xFFFFFFFF);
for (int i = 0; i < gFaceCount; i++) {
fFaces[i] = SkTypeface::CreateFromName(gFaces[i].fName,
gFaces[i].fStyle);
}
}
virtual ~FontScalerGM() {
for (int i = 0; i < gFaceCount; i++) {
SkSafeUnref(fFaces[i]);
}
}
protected:
virtual SkString onShortName() {
return SkString("fontscaler");
}
virtual SkISize onISize() {
return make_isize(1450, 750);
}
static void rotate_about(SkCanvas* canvas, SkScalar degrees, SkScalar px, SkScalar py) {
canvas->translate(px, py);
canvas->rotate(degrees);
canvas->translate(-px, -py);
}
virtual void onDraw(SkCanvas* canvas) {
SkPaint paint;
// test handling of obscene cubic values (currently broken)
if (false) {
SkPoint pts[4];
pts[0].set(1.61061274e+09f, 6291456);
pts[1].set(-7.18397061e+15f, -1.53091184e+13f);
pts[2].set(-1.30077315e+16f, -2.77196141e+13f);
pts[3].set(-1.30077315e+16f, -2.77196162e+13f);
SkPath path;
path.moveTo(pts[0]);
path.cubicTo(pts[1], pts[2], pts[3]);
canvas->drawPath(path, paint);
}
paint.setAntiAlias(true);
paint.setLCDRenderText(true);
//With freetype the default (normal hinting) can be really ugly.
//Most distros now set slight (vertical hinting only) in any event.
paint.setHinting(SkPaint::kSlight_Hinting);
SkSafeUnref(paint.setTypeface(SkTypeface::CreateFromName("Times Roman", SkTypeface::kNormal)));
// const char* text = "abcdefghijklmnopqrstuvwxyz";
const char* text = "Hamburgefons ooo mmm";
const size_t textLen = strlen(text);
for (int j = 0; j < 2; ++j) {
for (int i = 0; i < 6; ++i) {
SkScalar x = SkIntToScalar(10);
SkScalar y = SkIntToScalar(20);
SkAutoCanvasRestore acr(canvas, true);
canvas->translate(SkIntToScalar(50 + i * 230),
SkIntToScalar(20));
rotate_about(canvas, SkIntToScalar(i * 5), x, y * 10);
{
SkPaint p;
p.setAntiAlias(true);
SkRect r;
r.set(x-3, 15, x-1, 280);
canvas->drawRect(r, p);
}
int index = 0;
for (int ps = 6; ps <= 22; ps++) {
paint.setTextSize(SkIntToScalar(ps));
canvas->drawText(text, textLen, x, y, paint);
y += paint.getFontMetrics(NULL);
index += 1;
}
}
canvas->translate(0, 360);
paint.setSubpixelText(true);
}
}
private:
SkTypeface* fFaces[gFaceCount];
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static GM* MyFactory(void*) { return new FontScalerGM; }
static GMRegistry reg(MyFactory);
}
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