2011-07-28 14:26:00 +00:00
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/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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2014-01-13 14:53:55 +00:00
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2018-08-08 15:36:17 +00:00
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#include "Sample.h"
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2008-12-17 15:59:43 +00:00
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#include "SkCanvas.h"
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2014-01-30 18:58:24 +00:00
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#include "SkReadBuffer.h"
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#include "SkWriteBuffer.h"
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2008-12-17 15:59:43 +00:00
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#include "SkGradientShader.h"
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#include "SkGraphics.h"
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#include "SkPath.h"
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#include "SkRandom.h"
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#include "SkRegion.h"
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#include "SkShader.h"
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2018-08-21 15:45:46 +00:00
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#include "SkUTF.h"
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2008-12-17 15:59:43 +00:00
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#include "SkColorPriv.h"
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#include "SkColorFilter.h"
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#include "SkTime.h"
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#include "SkTypeface.h"
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#include "SkStream.h"
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static const struct {
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const char* fName;
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uint32_t fFlags;
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bool fFlushCache;
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} gHints[] = {
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{ "Linear", SkPaint::kLinearText_Flag, false },
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{ "Normal", 0, true },
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{ "Subpixel", SkPaint::kSubpixelText_Flag, true }
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};
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2014-05-12 13:35:55 +00:00
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static void DrawTheText(SkCanvas* canvas, const char text[], size_t length, SkScalar x, SkScalar y,
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const SkPaint& paint, SkScalar clickX) {
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2008-12-17 15:59:43 +00:00
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SkPaint p(paint);
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#if 0
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canvas->drawText(text, length, x, y, paint);
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#else
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{
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SkPoint pts[1000];
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SkScalar xpos = x;
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SkASSERT(length <= SK_ARRAY_COUNT(pts));
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2011-05-18 12:17:53 +00:00
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for (size_t i = 0; i < length; i++) {
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2016-10-18 18:42:44 +00:00
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pts[i].set(xpos, y);
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xpos += paint.getTextSize();
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2011-05-18 12:17:53 +00:00
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}
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2008-12-17 15:59:43 +00:00
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canvas->drawPosText(text, length, pts, paint);
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}
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#endif
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p.setSubpixelText(true);
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x += SkIntToScalar(180);
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canvas->drawText(text, length, x, y, p);
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#ifdef SK_DEBUG
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2011-05-18 12:17:53 +00:00
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if (true) {
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2008-12-17 15:59:43 +00:00
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p.setSubpixelText(false);
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p.setLinearText(true);
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x += SkIntToScalar(180);
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canvas->drawText(text, length, x, y, p);
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}
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#endif
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}
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2018-08-08 15:36:17 +00:00
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class TextSpeedView : public Sample {
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2008-12-17 15:59:43 +00:00
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public:
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2012-08-23 18:19:56 +00:00
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TextSpeedView() {
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2008-12-17 15:59:43 +00:00
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fHints = 0;
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fClickX = 0;
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}
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2011-02-07 15:30:46 +00:00
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2008-12-17 15:59:43 +00:00
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protected:
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2018-08-08 15:36:17 +00:00
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bool onQuery(Sample::Event* evt) override {
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if (Sample::TitleQ(*evt)) {
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Sample::TitleR(evt, "Text");
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2008-12-17 15:59:43 +00:00
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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2011-02-07 15:30:46 +00:00
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2011-05-18 12:17:53 +00:00
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static void make_textstrip(SkBitmap* bm) {
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2014-02-17 02:55:57 +00:00
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bm->allocPixels(SkImageInfo::Make(200, 18, kRGB_565_SkColorType,
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kOpaque_SkAlphaType));
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2008-12-17 15:59:43 +00:00
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bm->eraseColor(SK_ColorWHITE);
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2011-02-07 15:30:46 +00:00
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2008-12-17 15:59:43 +00:00
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SkCanvas canvas(*bm);
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SkPaint paint;
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const char* s = "Lorem ipsum dolor sit amet, consectetuer adipiscing elit";
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2011-02-07 15:30:46 +00:00
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2018-05-01 15:57:56 +00:00
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paint.setFlags(paint.getFlags() | SkPaint::kAntiAlias_Flag);
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2008-12-17 15:59:43 +00:00
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paint.setTextSize(SkIntToScalar(14));
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2017-04-28 19:35:12 +00:00
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canvas.drawString(s, SkIntToScalar(8), SkIntToScalar(14), paint);
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2008-12-17 15:59:43 +00:00
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}
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2011-02-07 15:30:46 +00:00
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2013-09-09 20:09:12 +00:00
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static void fill_pts(SkPoint pts[], size_t n, SkRandom* rand) {
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2008-12-17 15:59:43 +00:00
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for (size_t i = 0; i < n; i++)
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pts[i].set(rand->nextUScalar1() * 640, rand->nextUScalar1() * 480);
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}
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2011-02-07 15:30:46 +00:00
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2015-03-26 01:17:31 +00:00
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void onDrawContent(SkCanvas* canvas) override {
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2008-12-17 15:59:43 +00:00
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SkAutoCanvasRestore restore(canvas, false);
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{
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SkRect r;
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r.set(0, 0, SkIntToScalar(1000), SkIntToScalar(20));
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2015-08-27 14:41:13 +00:00
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// canvas->saveLayer(&r, nullptr, SkCanvas::kHasAlphaLayer_SaveFlag);
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2008-12-17 15:59:43 +00:00
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}
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SkPaint paint;
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// const uint16_t glyphs[] = { 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19 };
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int index = fHints % SK_ARRAY_COUNT(gHints);
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index = 1;
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// const char* style = gHints[index].fName;
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2011-02-07 15:30:46 +00:00
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2008-12-17 15:59:43 +00:00
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// canvas->translate(0, SkIntToScalar(50));
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2017-04-28 19:35:12 +00:00
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// canvas->drawString(style, SkIntToScalar(20), SkIntToScalar(20), paint);
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2008-12-17 15:59:43 +00:00
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2016-05-12 17:09:30 +00:00
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paint.setTypeface(SkTypeface::MakeFromFile("/skimages/samplefont.ttf"));
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2008-12-17 15:59:43 +00:00
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paint.setAntiAlias(true);
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paint.setFlags(paint.getFlags() | gHints[index].fFlags);
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2011-02-07 15:30:46 +00:00
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2008-12-17 15:59:43 +00:00
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SkRect clip;
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clip.set(SkIntToScalar(25), SkIntToScalar(34), SkIntToScalar(88), SkIntToScalar(155));
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2011-02-07 15:30:46 +00:00
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2008-12-17 15:59:43 +00:00
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const char* text = "Hamburgefons";
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size_t length = strlen(text);
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2011-05-02 17:33:45 +00:00
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SkScalar y = SkIntToScalar(0);
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for (int i = 9; i <= 24; i++) {
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paint.setTextSize(SkIntToScalar(i) /*+ (gRand.nextU() & 0xFFFF)*/);
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2011-05-18 12:17:53 +00:00
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for (SkScalar dx = 0; dx <= SkIntToScalar(3)/4;
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dx += SkIntToScalar(1) /* /4 */) {
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2011-05-02 17:33:45 +00:00
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y += paint.getFontSpacing();
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2014-05-12 13:35:55 +00:00
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DrawTheText(canvas, text, length, SkIntToScalar(20) + dx, y, paint, fClickX);
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2008-12-17 15:59:43 +00:00
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}
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}
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2011-05-02 17:33:45 +00:00
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if (gHints[index].fFlushCache) {
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// SkGraphics::SetFontCacheUsed(0);
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2008-12-17 15:59:43 +00:00
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}
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}
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2011-02-07 15:30:46 +00:00
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2018-08-08 15:36:17 +00:00
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virtual Sample::Click* onFindClickHandler(SkScalar x, SkScalar y,
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2015-03-26 01:17:31 +00:00
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unsigned modi) override {
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2008-12-17 15:59:43 +00:00
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fClickX = x;
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2013-01-08 16:17:50 +00:00
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return this->INHERITED::onFindClickHandler(x, y, modi);
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2008-12-17 15:59:43 +00:00
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}
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2011-02-07 15:30:46 +00:00
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2015-03-26 01:17:31 +00:00
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bool onClick(Click* click) override {
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2008-12-17 15:59:43 +00:00
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return this->INHERITED::onClick(click);
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}
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2011-02-07 15:30:46 +00:00
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2008-12-17 15:59:43 +00:00
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private:
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int fHints;
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SkScalar fClickX;
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2018-08-08 15:36:17 +00:00
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typedef Sample INHERITED;
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2008-12-17 15:59:43 +00:00
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};
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//////////////////////////////////////////////////////////////////////////////
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2018-08-08 15:36:17 +00:00
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DEF_SAMPLE( return new TextSpeedView(); )
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