From 40a3772b2740ebdeb591b9e438851e6963c0441d Mon Sep 17 00:00:00 2001 From: "reed@google.com" Date: Tue, 6 Sep 2011 18:54:54 +0000 Subject: update sample to test stretching + and - amounds git-svn-id: http://skia.googlecode.com/svn/trunk@2222 2bbb7eff-a529-9590-31e7-b0007b416f81 --- samplecode/SampleNinePatch.cpp | 165 ++++++++++++++++++++++------------------- 1 file changed, 88 insertions(+), 77 deletions(-) (limited to 'samplecode') diff --git a/samplecode/SampleNinePatch.cpp b/samplecode/SampleNinePatch.cpp index 689afd7e14..7dcbbce613 100644 --- a/samplecode/SampleNinePatch.cpp +++ b/samplecode/SampleNinePatch.cpp @@ -12,24 +12,62 @@ #include "SkNinePatch.h" #include "SkPaint.h" #include "SkUnPreMultiply.h" +#include "SkGpuDevice.h" + +static void make_bitmap(SkBitmap* bitmap, GrContext* ctx, SkIRect* center) { + SkDevice* dev; + SkCanvas canvas; + + const int kFixed = 28; + const int kStretchy = 8; + const int kSize = 2*kFixed + kStretchy; + + if (ctx) { + dev = new SkGpuDevice(ctx, SkBitmap::kARGB_8888_Config, kSize, kSize); + *bitmap = dev->accessBitmap(false); + } else { + bitmap->setConfig(SkBitmap::kARGB_8888_Config, kSize, kSize); + bitmap->allocPixels(); + dev = new SkDevice(*bitmap); + } + + canvas.setDevice(dev)->unref(); + canvas.clear(0); + + SkRect r = SkRect::MakeWH(SkIntToScalar(kSize), SkIntToScalar(kSize)); + const SkScalar strokeWidth = SkIntToScalar(6); + const SkScalar radius = SkIntToScalar(kFixed) - strokeWidth/2; + + center->setXYWH(kFixed, kFixed, kStretchy, kStretchy); + + SkPaint paint; + paint.setAntiAlias(true); + +#if 0 + r.inset(strokeWidth/2, strokeWidth/2); + + paint.setColor(SK_ColorBLUE); + canvas.drawRoundRect(r, radius, radius, paint); + paint.setColor(SK_ColorRED); + paint.setStyle(SkPaint::kStroke_Style); + paint.setStrokeWidth(strokeWidth); + canvas.drawRoundRect(r, radius, radius, paint); +#else + paint.setColor(0xFFFF0000); + canvas.drawRoundRect(r, radius, radius, paint); + r.setXYWH(SkIntToScalar(kFixed), 0, SkIntToScalar(kStretchy), SkIntToScalar(kSize)); + paint.setColor(0x8800FF00); + canvas.drawRect(r, paint); + r.setXYWH(0, SkIntToScalar(kFixed), SkIntToScalar(kSize), SkIntToScalar(kStretchy)); + paint.setColor(0x880000FF); + canvas.drawRect(r, paint); +#endif +} + class NinePatchView : public SampleView { public: - SkBitmap fBM; - - NinePatchView() { - SkImageDecoder::DecodeFile("/skimages/btn_default_normal_disable.9.png", &fBM); - - // trim off the edge guide-lines - SkBitmap tmp; - SkIRect r; - r.set(1, 1, fBM.width() - 1, fBM.height() - 1); - fBM.extractSubset(&tmp, r); - fBM.swap(tmp); - - fX = SkIntToScalar(fBM.width()); - fY = 0; - } + NinePatchView() {} protected: // overrides from SkEventSink @@ -40,75 +78,48 @@ protected: } return this->INHERITED::onQuery(evt); } - - virtual void onDrawBackground(SkCanvas* canvas) { - SkPaint p; - p.setDither(true); - p.setColor(0xFF909090); - canvas->drawPaint(p); - } - static void test_rects(SkCanvas* canvas, const SkBitmap& bm, const SkPaint* paint) { - static const SkIRect src[] = { - { 0, 0, 18, 34 }, - { 18, 0, 19, 34 }, - { 19, 0, 36, 34 }, - { 0, 34, 18, 35 }, - { 18, 34, 19, 35 }, - { 19, 34, 36, 35 }, - { 0, 35, 18, 72 }, - { 18, 35, 19, 72 }, - { 19, 35, 36, 72 }, - }; - static const SkRect dst[] = { - { 0, 0, 18, 34 }, - { 18, 0, 283, 34 }, - { 283, 0, 300, 34 }, - { 0, 34, 18, 163 }, - { 18, 34, 283, 163 }, - { 283, 34, 300, 163 }, - { 0, 163, 18, 200 }, - { 18, 163, 283, 200 }, - { 283, 163, 300, 200 }, - }; - for (size_t i = 0; i < SK_ARRAY_COUNT(src); i++) { - canvas->drawBitmapRect(bm, &src[i], dst[i], paint); - } + static void drawNine(SkCanvas* canvas, const SkRect& dst, const SkBitmap& bm, + const SkIRect& center, const SkPaint* paint) { + SkIRect margin; + margin.set(center.fLeft, center.fTop, bm.width() - center.fRight, + bm.height() - center.fBottom); + SkNinePatch::DrawNine(canvas, dst, bm, margin, paint); } virtual void onDrawContent(SkCanvas* canvas) { - canvas->drawBitmap(fBM, 0, 0); - - SkIRect margins; - SkRect dst; - int d = 25; - - margins.set(d, d, d, d); - margins.fLeft = fBM.width()/2 - 1; - margins.fTop = fBM.height()/2 - 1; - margins.fRight = fBM.width() - margins.fLeft - 1; - margins.fBottom = fBM.height() - margins.fTop - 1; - - // canvas->translate(fX/5, fY/5); - canvas->translate(0, 76); - - dst.set(0, 0, SkIntToScalar(200), SkIntToScalar(200)); - + SkBitmap bm; + SkIRect center; + make_bitmap(&bm, SampleCode::GetGr(), ¢er); + + // amount of bm that should not be stretched (unless we have to) + const SkScalar fixed = SkIntToScalar(bm.width() - center.width()); + + const SkTSize size[] = { + { fixed * 4 / 5, fixed * 4 / 5 }, // shrink in both axes + { fixed * 4 / 5, fixed * 4 }, // shrink in X + { fixed * 4, fixed * 4 / 5 }, // shrink in Y + { fixed * 4, fixed * 4 } + }; + + canvas->drawBitmap(bm, SkIntToScalar(10), SkIntToScalar(10), NULL); + + SkScalar x = SkIntToScalar(100); + SkScalar y = SkIntToScalar(100); + SkPaint paint; - paint.setAntiAlias(false); - paint.setDither(true); - paint.setFilterBitmap(false); - // SkNinePatch::DrawNine(canvas, dst, fBM, margins, &paint); - test_rects(canvas, fBM, &paint); + paint.setFilterBitmap(true); + + for (int iy = 0; iy < 2; ++iy) { + for (int ix = 0; ix < 2; ++ix) { + int i = ix * 2 + iy; + SkRect r = SkRect::MakeXYWH(x + ix * fixed, y + iy * fixed, + size[i].width(), size[i].height()); + drawNine(canvas, r, bm, center, &paint); + } + } } - virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) { - fX = x / 1.5f; - fY = y / 1.5f; - fX = x; fY = y; - this->inval(NULL); - return this->INHERITED::onFindClickHandler(x, y); - } private: SkScalar fX, fY; typedef SampleView INHERITED; -- cgit v1.2.3