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add 'c' toggle to test clipping

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git-svn-id: http://skia.googlecode.com/svn/trunk@6278 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
reed@google.com 2012-11-02 19:59:18 +00:00
parent 92b6a94ac1
commit 9c0bef18e3
1 changed files with 41 additions and 6 deletions
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47
samplecode/SampleFatBits.cpp
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@ -25,12 +25,14 @@ static void erase(SkSurface* surface) {
}
static SkShader* createChecker() {
// SkColor colors[] = { 0xFFFDFDFD, 0xFFF4F4F4 };
SkColor colors[] = { 0xFFFFFFFF, 0xFFFFFFFF };
SkBitmap bm;
bm.setConfig(SkBitmap::kARGB_8888_Config, 2, 2);
bm.allocPixels();
bm.lockPixels();
*bm.getAddr32(0, 0) = *bm.getAddr32(1, 1) = SkPreMultiplyColor(0xFFFDFDFD);
*bm.getAddr32(0, 1) = *bm.getAddr32(1, 0) = SkPreMultiplyColor(0xFFF4F4F4);
*bm.getAddr32(0, 0) = *bm.getAddr32(1, 1) = SkPreMultiplyColor(colors[0]);
*bm.getAddr32(0, 1) = *bm.getAddr32(1, 0) = SkPreMultiplyColor(colors[1]);
SkShader* s = SkShader::CreateBitmapShader(bm, SkShader::kRepeat_TileMode,
SkShader::kRepeat_TileMode);
@ -48,6 +50,9 @@ public:
fGrid = true;
fShowSkeleton = true;
fUseGPU = false;
fUseClip = false;
fClipRect.set(2, 2, 11, 8 );
}
int getZoom() const { return fZ; }
@ -64,6 +69,9 @@ public:
bool getUseGPU() const { return fUseGPU; }
void setUseGPU(bool ug) { fUseGPU = ug; }
bool getUseClip() const { return fUseClip; }
void setUseClip(bool uc) { fUseClip = uc; }
enum Style {
kHair_Style,
kStroke_Style,
@ -95,11 +103,11 @@ public:
void drawRect(SkCanvas* canvas, SkPoint pts[2]);
private:
bool fAA, fGrid, fShowSkeleton, fUseGPU;
bool fAA, fGrid, fShowSkeleton, fUseGPU, fUseClip;
Style fStyle;
int fW, fH, fZ;
SkMatrix fMatrix, fInverse;
SkRect fBounds;
SkRect fBounds, fClipRect;
SkAutoTUnref<SkShader> fShader;
SkAutoTUnref<SkSurface> fMinSurface;
SkAutoTUnref<SkSurface> fMaxSurface;
@ -200,6 +208,19 @@ void FatBits::drawFG(SkCanvas* canvas) {
canvas->drawPoint(x, y, inner);
}
}
if (fUseClip) {
SkPaint p;
p.setStyle(SkPaint::kStroke_Style);
p.setColor(SK_ColorLTGRAY);
SkRect r = {
fClipRect.fLeft * fZ,
fClipRect.fTop * fZ,
fClipRect.fRight * fZ,
fClipRect.fBottom * fZ
};
canvas->drawRect(r, p);
}
}
void FatBits::drawLineSkeleton(SkCanvas* max, const SkPoint pts[]) {
@ -254,7 +275,16 @@ void FatBits::drawLine(SkCanvas* canvas, SkPoint pts[]) {
erase(fMinSurface);
this->setupPaint(&paint);
paint.setColor(FAT_PIXEL_COLOR);
if (fUseClip) {
fMinSurface->getCanvas()->save();
SkRect r = fClipRect;
r.inset(SK_Scalar1/3, SK_Scalar1/3);
fMinSurface->getCanvas()->clipRect(r, SkRegion::kIntersect_Op, true);
}
fMinSurface->getCanvas()->drawLine(pts[0].fX, pts[0].fY, pts[1].fX, pts[1].fY, paint);
if (fUseClip) {
fMinSurface->getCanvas()->restore();
}
this->copyMinToMax();
SkCanvas* max = fMaxSurface->getCanvas();
@ -331,6 +361,10 @@ protected:
SkUnichar uni;
if (SampleCode::CharQ(*evt, &uni)) {
switch (uni) {
case 'c':
fFB.setUseClip(!fFB.getUseClip());
this->inval(NULL);
return true;
case 'r':
fIsRect = !fIsRect;
this->inval(NULL);
@ -374,10 +408,11 @@ protected:
{
SkString str;
str.printf("%s %s %s",
str.printf("%s %s %s %s",
fFB.getAA() ? "AA" : "BW",
FatBits::kHair_Style == fFB.getStyle() ? "Hair" : "Stroke",
fFB.getUseGPU() ? "GPU" : "CPU");
fFB.getUseGPU() ? "GPU" : "CPU",
fFB.getUseClip() ? "clip" : "noclip");
SkPaint paint;
paint.setAntiAlias(true);
paint.setTextSize(16);