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      1 #include "SampleCode.h"
      2 #include "SkView.h"
      3 #include "SkCanvas.h"
      4 #include "SkImageDecoder.h"
      5 #include "SkNinePatch.h"
      6 #include "SkPaint.h"
      7 #include "SkUnPreMultiply.h"
      8 
      9 class NinePatchView : public SampleView {
     10 public:
     11     SkBitmap fBM;
     12 
     13 	NinePatchView() {
     14         SkImageDecoder::DecodeFile("/skimages/btn_default_normal_disable.9.png", &fBM);
     15 
     16         // trim off the edge guide-lines
     17         SkBitmap tmp;
     18         SkIRect r;
     19         r.set(1, 1, fBM.width() - 1, fBM.height() - 1);
     20         fBM.extractSubset(&tmp, r);
     21         fBM.swap(tmp);
     22 
     23         fX = SkIntToScalar(fBM.width());
     24         fY = 0;
     25     }
     26 
     27 protected:
     28     // overrides from SkEventSink
     29     virtual bool onQuery(SkEvent* evt) {
     30         if (SampleCode::TitleQ(*evt)) {
     31             SampleCode::TitleR(evt, "NinePatch");
     32             return true;
     33         }
     34         return this->INHERITED::onQuery(evt);
     35     }
     36 
     37     virtual void onDrawBackground(SkCanvas* canvas) {
     38         SkPaint p;
     39         p.setDither(true);
     40         p.setColor(0xFF909090);
     41         canvas->drawPaint(p);
     42     }
     43 
     44     static void test_rects(SkCanvas* canvas, const SkBitmap& bm, const SkPaint* paint) {
     45         static const SkIRect src[] = {
     46             { 0, 0, 18, 34 },
     47             { 18, 0, 19, 34 },
     48             { 19, 0, 36, 34 },
     49             { 0, 34, 18, 35 },
     50             { 18, 34, 19, 35 },
     51             { 19, 34, 36, 35 },
     52             { 0, 35, 18, 72 },
     53             { 18, 35, 19, 72 },
     54             { 19, 35, 36, 72 },
     55         };
     56         static const SkRect dst[] = {
     57             { 0, 0, 18, 34 },
     58             { 18, 0, 283, 34 },
     59             { 283, 0, 300, 34 },
     60             { 0, 34, 18, 163 },
     61             { 18, 34, 283, 163 },
     62             { 283, 34, 300, 163 },
     63             { 0, 163, 18, 200 },
     64             { 18, 163, 283, 200 },
     65             { 283, 163, 300, 200 },
     66         };
     67         for (size_t i = 0; i < SK_ARRAY_COUNT(src); i++) {
     68             canvas->drawBitmapRect(bm, &src[i], dst[i], paint);
     69         }
     70     }
     71 
     72     virtual void onDrawContent(SkCanvas* canvas) {
     73         canvas->drawBitmap(fBM, 0, 0);
     74 
     75         SkIRect margins;
     76         SkRect  dst;
     77         int d = 25;
     78 
     79         margins.set(d, d, d, d);
     80         margins.fLeft   = fBM.width()/2 - 1;
     81         margins.fTop    = fBM.height()/2 - 1;
     82         margins.fRight  = fBM.width() - margins.fLeft - 1;
     83         margins.fBottom = fBM.height() - margins.fTop - 1;
     84 
     85    //     canvas->translate(fX/5, fY/5);
     86         canvas->translate(0, 76);
     87 
     88         dst.set(0, 0, SkIntToScalar(200), SkIntToScalar(200));
     89 
     90         SkPaint paint;
     91         paint.setAntiAlias(false);
     92         paint.setDither(true);
     93         paint.setFilterBitmap(false);
     94     //    SkNinePatch::DrawNine(canvas, dst, fBM, margins, &paint);
     95         test_rects(canvas, fBM, &paint);
     96     }
     97 
     98     virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) {
     99         fX = x / 1.5f;
    100         fY = y / 1.5f;
    101         fX = x; fY = y;
    102         this->inval(NULL);
    103         return this->INHERITED::onFindClickHandler(x, y);
    104     }
    105 private:
    106     SkScalar fX, fY;
    107     typedef SampleView INHERITED;
    108 };
    109 
    110 //////////////////////////////////////////////////////////////////////////////
    111 
    112 static SkView* MyFactory() { return new NinePatchView; }
    113 static SkViewRegister reg(MyFactory);
    114 
    115