b286bc2da8
Idea: transition callers to this, so we can later typedef SkColorFilter and SkShader to the same thing. Bug: skia:8937 Change-Id: I000c882e11622091aa44c141aa6ddd1216414f46 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/206685 Reviewed-by: Mike Klein <mtklein@google.com> Commit-Queue: Mike Reed <reed@google.com>
118 lines
4.4 KiB
C++
118 lines
4.4 KiB
C++
/*
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* Copyright 2013 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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#include "SkColorFilter.h"
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#include "SkColorFilterImageFilter.h"
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#include "SkDropShadowImageFilter.h"
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#include "SkTextUtils.h"
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#include "ToolUtils.h"
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#include "gm.h"
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///////////////////////////////////////////////////////////////////////////////
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static void draw_paint(SkCanvas* canvas, const SkRect& r, sk_sp<SkImageFilter> imf) {
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SkPaint paint;
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paint.setImageFilter(std::move(imf));
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paint.setColor(SK_ColorBLACK);
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canvas->save();
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canvas->clipRect(r);
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canvas->drawPaint(paint);
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canvas->restore();
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}
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static void draw_path(SkCanvas* canvas, const SkRect& r, sk_sp<SkImageFilter> imf) {
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SkPaint paint;
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paint.setColor(SK_ColorGREEN);
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paint.setImageFilter(std::move(imf));
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paint.setAntiAlias(true);
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canvas->save();
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canvas->clipRect(r);
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canvas->drawCircle(r.centerX(), r.centerY(), r.width()/3, paint);
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canvas->restore();
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}
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static void draw_text(SkCanvas* canvas, const SkRect& r, sk_sp<SkImageFilter> imf) {
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SkPaint paint;
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paint.setImageFilter(std::move(imf));
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paint.setColor(SK_ColorGREEN);
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paint.setAntiAlias(true);
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SkFont font(ToolUtils::create_portable_typeface(), r.height() / 2);
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canvas->save();
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canvas->clipRect(r);
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SkTextUtils::DrawString(canvas, "Text", r.centerX(), r.centerY(), font, paint, SkTextUtils::kCenter_Align);
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canvas->restore();
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}
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static void draw_bitmap(SkCanvas* canvas, const SkRect& r, sk_sp<SkImageFilter> imf) {
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SkPaint paint;
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SkIRect bounds;
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r.roundOut(&bounds);
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SkBitmap bm;
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bm.allocN32Pixels(bounds.width(), bounds.height());
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bm.eraseColor(SK_ColorTRANSPARENT);
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SkCanvas c(bm);
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draw_path(&c, r, nullptr);
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paint.setImageFilter(std::move(imf));
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canvas->save();
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canvas->clipRect(r);
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canvas->drawBitmap(bm, 0, 0, &paint);
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canvas->restore();
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}
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///////////////////////////////////////////////////////////////////////////////
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DEF_SIMPLE_GM(dropshadowimagefilter, canvas, 400, 656) {
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void (*drawProc[])(SkCanvas*, const SkRect&, sk_sp<SkImageFilter>) = {
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draw_bitmap, draw_path, draw_paint, draw_text
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};
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sk_sp<SkColorFilter> cf(SkColorFilters::Blend(SK_ColorMAGENTA, SkBlendMode::kSrcIn));
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sk_sp<SkImageFilter> cfif(SkColorFilterImageFilter::Make(std::move(cf), nullptr));
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SkImageFilter::CropRect cropRect(SkRect::Make(SkIRect::MakeXYWH(10, 10, 44, 44)),
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SkImageFilter::CropRect::kHasAll_CropEdge);
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SkImageFilter::CropRect bogusRect(SkRect::Make(SkIRect::MakeXYWH(-100, -100, 10, 10)),
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SkImageFilter::CropRect::kHasAll_CropEdge);
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sk_sp<SkImageFilter> filters[] = {
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nullptr,
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SkDropShadowImageFilter::Make(7.0f, 0.0f, 0.0f, 3.0f, SK_ColorBLUE,
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SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode, nullptr),
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SkDropShadowImageFilter::Make(0.0f, 7.0f, 3.0f, 0.0f, SK_ColorBLUE,
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SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode, nullptr),
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SkDropShadowImageFilter::Make(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE,
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SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode, nullptr),
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SkDropShadowImageFilter::Make(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE,
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SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode, std::move(cfif)),
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SkDropShadowImageFilter::Make(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE,
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SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode, nullptr, &cropRect),
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SkDropShadowImageFilter::Make(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE,
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SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode, nullptr, &bogusRect),
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SkDropShadowImageFilter::Make(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE,
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SkDropShadowImageFilter::kDrawShadowOnly_ShadowMode, nullptr),
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};
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SkRect r = SkRect::MakeWH(SkIntToScalar(64), SkIntToScalar(64));
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SkScalar MARGIN = SkIntToScalar(16);
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SkScalar DX = r.width() + MARGIN;
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SkScalar DY = r.height() + MARGIN;
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canvas->translate(MARGIN, MARGIN);
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for (size_t j = 0; j < SK_ARRAY_COUNT(drawProc); ++j) {
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canvas->save();
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for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) {
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drawProc[j](canvas, r, filters[i]);
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canvas->translate(0, DY);
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}
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canvas->restore();
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canvas->translate(DX, 0);
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}
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}
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