| /* |
| * Copyright 2013 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkColorFilter.h" |
| #include "SkColorFilterImageFilter.h" |
| #include "SkDropShadowImageFilter.h" |
| #include "SkTextUtils.h" |
| #include "ToolUtils.h" |
| #include "gm.h" |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static void draw_paint(SkCanvas* canvas, const SkRect& r, sk_sp<SkImageFilter> imf) { |
| SkPaint paint; |
| paint.setImageFilter(std::move(imf)); |
| paint.setColor(SK_ColorBLACK); |
| canvas->save(); |
| canvas->clipRect(r); |
| canvas->drawPaint(paint); |
| canvas->restore(); |
| } |
| |
| static void draw_path(SkCanvas* canvas, const SkRect& r, sk_sp<SkImageFilter> imf) { |
| SkPaint paint; |
| paint.setColor(SK_ColorGREEN); |
| paint.setImageFilter(std::move(imf)); |
| paint.setAntiAlias(true); |
| canvas->save(); |
| canvas->clipRect(r); |
| canvas->drawCircle(r.centerX(), r.centerY(), r.width()/3, paint); |
| canvas->restore(); |
| } |
| |
| static void draw_text(SkCanvas* canvas, const SkRect& r, sk_sp<SkImageFilter> imf) { |
| SkPaint paint; |
| paint.setImageFilter(std::move(imf)); |
| paint.setColor(SK_ColorGREEN); |
| paint.setAntiAlias(true); |
| |
| SkFont font(ToolUtils::create_portable_typeface(), r.height() / 2); |
| canvas->save(); |
| canvas->clipRect(r); |
| SkTextUtils::DrawString(canvas, "Text", r.centerX(), r.centerY(), font, paint, SkTextUtils::kCenter_Align); |
| canvas->restore(); |
| } |
| |
| static void draw_bitmap(SkCanvas* canvas, const SkRect& r, sk_sp<SkImageFilter> imf) { |
| SkPaint paint; |
| |
| SkIRect bounds; |
| r.roundOut(&bounds); |
| |
| SkBitmap bm; |
| bm.allocN32Pixels(bounds.width(), bounds.height()); |
| bm.eraseColor(SK_ColorTRANSPARENT); |
| SkCanvas c(bm); |
| draw_path(&c, r, nullptr); |
| |
| paint.setImageFilter(std::move(imf)); |
| canvas->save(); |
| canvas->clipRect(r); |
| canvas->drawBitmap(bm, 0, 0, &paint); |
| canvas->restore(); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_SIMPLE_GM(dropshadowimagefilter, canvas, 400, 656) { |
| void (*drawProc[])(SkCanvas*, const SkRect&, sk_sp<SkImageFilter>) = { |
| draw_bitmap, draw_path, draw_paint, draw_text |
| }; |
| |
| sk_sp<SkColorFilter> cf(SkColorFilters::Blend(SK_ColorMAGENTA, SkBlendMode::kSrcIn)); |
| sk_sp<SkImageFilter> cfif(SkColorFilterImageFilter::Make(std::move(cf), nullptr)); |
| SkImageFilter::CropRect cropRect(SkRect::Make(SkIRect::MakeXYWH(10, 10, 44, 44)), |
| SkImageFilter::CropRect::kHasAll_CropEdge); |
| SkImageFilter::CropRect bogusRect(SkRect::Make(SkIRect::MakeXYWH(-100, -100, 10, 10)), |
| SkImageFilter::CropRect::kHasAll_CropEdge); |
| |
| sk_sp<SkImageFilter> filters[] = { |
| nullptr, |
| SkDropShadowImageFilter::Make(7.0f, 0.0f, 0.0f, 3.0f, SK_ColorBLUE, |
| SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode, nullptr), |
| SkDropShadowImageFilter::Make(0.0f, 7.0f, 3.0f, 0.0f, SK_ColorBLUE, |
| SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode, nullptr), |
| SkDropShadowImageFilter::Make(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE, |
| SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode, nullptr), |
| SkDropShadowImageFilter::Make(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE, |
| SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode, std::move(cfif)), |
| SkDropShadowImageFilter::Make(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE, |
| SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode, nullptr, &cropRect), |
| SkDropShadowImageFilter::Make(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE, |
| SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode, nullptr, &bogusRect), |
| SkDropShadowImageFilter::Make(7.0f, 7.0f, 3.0f, 3.0f, SK_ColorBLUE, |
| SkDropShadowImageFilter::kDrawShadowOnly_ShadowMode, nullptr), |
| }; |
| |
| SkRect r = SkRect::MakeWH(SkIntToScalar(64), SkIntToScalar(64)); |
| SkScalar MARGIN = SkIntToScalar(16); |
| SkScalar DX = r.width() + MARGIN; |
| SkScalar DY = r.height() + MARGIN; |
| |
| canvas->translate(MARGIN, MARGIN); |
| for (size_t j = 0; j < SK_ARRAY_COUNT(drawProc); ++j) { |
| canvas->save(); |
| for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) { |
| drawProc[j](canvas, r, filters[i]); |
| canvas->translate(0, DY); |
| } |
| canvas->restore(); |
| canvas->translate(DX, 0); |
| } |
| } |