skia2/samplecode/SampleFilter2.cpp
Mike Reed a697df98d7 use utils for deprecated TextAlign
Bug: skia:8493
Change-Id: Ie7162d6e9099ce6499f05024205bd39fdd944c2b
Reviewed-on: https://skia-review.googlesource.com/c/165300
Auto-Submit: Mike Reed <reed@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
2018-10-26 14:35:28 +00:00

115 lines
3.6 KiB
C++

/*
* 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 "DecodeFile.h"
#include "Sample.h"
#include "SkCanvas.h"
#include "SkColorFilter.h"
#include "SkColorPriv.h"
#include "SkGradientShader.h"
#include "SkGraphics.h"
#include "SkPath.h"
#include "SkRegion.h"
#include "SkShader.h"
#include "SkString.h"
#include "SkTextUtils.h"
#include "SkTime.h"
#include "SkUTF.h"
static const char* gNames[] = {
"/skimages/background_01.png"
};
class Filter2View : public Sample {
public:
SkBitmap* fBitmaps;
int fBitmapCount;
int fCurrIndex;
Filter2View() {
fBitmapCount = SK_ARRAY_COUNT(gNames)*2;
fBitmaps = new SkBitmap[fBitmapCount];
for (int i = 0; i < fBitmapCount/2; i++) {
decode_file(gNames[i], &fBitmaps[i]);
}
for (int i = fBitmapCount/2; i < fBitmapCount; i++) {
decode_file(gNames[i-fBitmapCount/2], &fBitmaps[i], kRGB_565_SkColorType);
}
fCurrIndex = 0;
this->setBGColor(SK_ColorGRAY);
}
virtual ~Filter2View() {
delete[] fBitmaps;
}
protected:
virtual bool onQuery(Sample::Event* evt) {
if (Sample::TitleQ(*evt)) {
SkString str("Filter/Dither ");
str.append(gNames[fCurrIndex]);
Sample::TitleR(evt, str.c_str());
return true;
}
return this->INHERITED::onQuery(evt);
}
virtual void onDrawContent(SkCanvas* canvas) {
canvas->translate(SkIntToScalar(10), SkIntToScalar(50));
const SkScalar W = SkIntToScalar(fBitmaps[0].width() + 1);
const SkScalar H = SkIntToScalar(fBitmaps[0].height() + 1);
SkPaint paint;
const SkScalar scale = 0.897917f;
canvas->scale(SK_Scalar1, scale);
for (int k = 0; k < 2; k++) {
paint.setFilterQuality(k == 1 ? kLow_SkFilterQuality : kNone_SkFilterQuality);
for (int j = 0; j < 2; j++) {
paint.setDither(j == 1);
for (int i = 0; i < fBitmapCount; i++) {
SkScalar x = (k * fBitmapCount + j) * W;
SkScalar y = i * H;
x = SkScalarRoundToScalar(x);
y = SkScalarRoundToScalar(y);
canvas->drawBitmap(fBitmaps[i], x, y, &paint);
if (i == 0) {
SkPaint p;
p.setAntiAlias(true);
p.setTextSize(SkIntToScalar(18));
SkString s("dither=");
s.appendS32(paint.isDither());
s.append(" filter=");
s.appendS32(paint.getFilterQuality() != kNone_SkFilterQuality);
SkTextUtils::DrawString(canvas, s, x + W/2, y - p.getTextSize(), p,
SkPaint::kCenter_Align);
}
if (k+j == 2) {
SkPaint p;
p.setAntiAlias(true);
p.setTextSize(SkIntToScalar(18));
SkString s;
s.append(" depth=");
s.appendS32(fBitmaps[i].colorType() == kRGB_565_SkColorType ? 16 : 32);
SkTextUtils::DrawString(canvas, s, x + W + SkIntToScalar(4), y + H/2, p);
}
}
}
}
}
private:
typedef Sample INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_SAMPLE( return new Filter2View(); )