671cd65678
git-svn-id: http://skia.googlecode.com/svn/trunk@182 2bbb7eff-a529-9590-31e7-b0007b416f81
348 lines
10 KiB
C++
348 lines
10 KiB
C++
#include "SampleCode.h"
|
|
#include "SkView.h"
|
|
#include "SkCanvas.h"
|
|
#include "SkGradientShader.h"
|
|
#include "SkPath.h"
|
|
#include "SkRegion.h"
|
|
#include "SkShader.h"
|
|
#include "SkUtils.h"
|
|
#include "SkImageDecoder.h"
|
|
|
|
#ifdef SK_DEBUG
|
|
static void make_rgn(SkRegion* rgn, int left, int top, int right, int bottom,
|
|
size_t count, int32_t runs[]) {
|
|
SkIRect r;
|
|
r.set(left, top, right, bottom);
|
|
|
|
rgn->debugSetRuns(runs, count);
|
|
SkASSERT(rgn->getBounds() == r);
|
|
}
|
|
|
|
static void test_union_bug_1505668(SkRegion* ra, SkRegion* rb, SkRegion* rc) {
|
|
static int32_t dataA[] = {
|
|
0x00000001, 0x000001dd,
|
|
0x00000001, 0x0000000c, 0x0000000d, 0x00000025,
|
|
0x7fffffff, 0x000001de, 0x00000001, 0x00000025,
|
|
0x7fffffff, 0x000004b3, 0x00000001, 0x00000026,
|
|
0x7fffffff, 0x000004b4, 0x0000000c, 0x00000026,
|
|
0x7fffffff, 0x00000579, 0x00000000, 0x0000013a,
|
|
0x7fffffff, 0x000005d8, 0x00000000, 0x0000013b,
|
|
0x7fffffff, 0x7fffffff
|
|
};
|
|
make_rgn(ra, 0, 1, 315, 1496, SK_ARRAY_COUNT(dataA), dataA);
|
|
|
|
static int32_t dataB[] = {
|
|
0x000000b6, 0x000000c4,
|
|
0x000000a1, 0x000000f0, 0x7fffffff, 0x000000d6,
|
|
0x7fffffff, 0x000000e4, 0x00000070, 0x00000079,
|
|
0x000000a1, 0x000000b0, 0x7fffffff, 0x000000e6,
|
|
0x7fffffff, 0x000000f4, 0x00000070, 0x00000079,
|
|
0x000000a1, 0x000000b0, 0x7fffffff, 0x000000f6,
|
|
0x7fffffff, 0x00000104, 0x000000a1, 0x000000b0,
|
|
0x7fffffff, 0x7fffffff
|
|
};
|
|
make_rgn(rb, 112, 182, 240, 260, SK_ARRAY_COUNT(dataB), dataB);
|
|
|
|
rc->op(*ra, *rb, SkRegion::kUnion_Op);
|
|
}
|
|
#endif
|
|
|
|
static void scale_rect(SkIRect* dst, const SkIRect& src, float scale) {
|
|
dst->fLeft = (int)::roundf(src.fLeft * scale);
|
|
dst->fTop = (int)::roundf(src.fTop * scale);
|
|
dst->fRight = (int)::roundf(src.fRight * scale);
|
|
dst->fBottom = (int)::roundf(src.fBottom * scale);
|
|
}
|
|
|
|
static void scale_rgn(SkRegion* dst, const SkRegion& src, float scale) {
|
|
SkRegion tmp;
|
|
SkRegion::Iterator iter(src);
|
|
|
|
for (; !iter.done(); iter.next()) {
|
|
SkIRect r;
|
|
scale_rect(&r, iter.rect(), scale);
|
|
tmp.op(r, SkRegion::kUnion_Op);
|
|
}
|
|
dst->swap(tmp);
|
|
}
|
|
|
|
static void paint_rgn(SkCanvas* canvas, const SkRegion& rgn,
|
|
const SkPaint& paint) {
|
|
SkRegion scaled;
|
|
scale_rgn(&scaled, rgn, 0.5f);
|
|
|
|
SkRegion::Iterator iter(rgn);
|
|
|
|
for (; !iter.done(); iter.next())
|
|
{
|
|
SkRect r;
|
|
r.set(iter.rect());
|
|
canvas->drawRect(r, paint);
|
|
}
|
|
}
|
|
|
|
class RegionView : public SkView {
|
|
public:
|
|
RegionView()
|
|
{
|
|
fBase.set(100, 100, 150, 150);
|
|
fRect = fBase;
|
|
fRect.inset(5, 5);
|
|
fRect.offset(25, 25);
|
|
}
|
|
|
|
void build_rgn(SkRegion* rgn, SkRegion::Op op)
|
|
{
|
|
rgn->setRect(fBase);
|
|
SkIRect r = fBase;
|
|
r.offset(75, 20);
|
|
rgn->op(r, SkRegion::kUnion_Op);
|
|
rgn->op(fRect, op);
|
|
}
|
|
|
|
|
|
protected:
|
|
// overrides from SkEventSink
|
|
virtual bool onQuery(SkEvent* evt)
|
|
{
|
|
if (SampleCode::TitleQ(*evt))
|
|
{
|
|
SampleCode::TitleR(evt, "Regions");
|
|
return true;
|
|
}
|
|
return this->INHERITED::onQuery(evt);
|
|
}
|
|
|
|
void drawOrig(SkCanvas* canvas, bool bg)
|
|
{
|
|
SkRect r;
|
|
SkPaint paint;
|
|
|
|
paint.setStyle(SkPaint::kStroke_Style);
|
|
if (bg)
|
|
paint.setColor(0xFFBBBBBB);
|
|
|
|
r.set(fBase);
|
|
canvas->drawRect(r, paint);
|
|
r.set(fRect);
|
|
canvas->drawRect(r, paint);
|
|
}
|
|
|
|
void drawRgnOped(SkCanvas* canvas, SkRegion::Op op, SkColor color)
|
|
{
|
|
SkRegion rgn;
|
|
|
|
this->build_rgn(&rgn, op);
|
|
|
|
{
|
|
SkRegion tmp, tmp2(rgn);
|
|
|
|
tmp = tmp2;
|
|
tmp.translate(5, -3);
|
|
|
|
{
|
|
char buffer[1000];
|
|
size_t size = tmp.flatten(NULL);
|
|
SkASSERT(size <= sizeof(buffer));
|
|
size_t size2 = tmp.flatten(buffer);
|
|
SkASSERT(size == size2);
|
|
|
|
SkRegion tmp3;
|
|
size2 = tmp3.unflatten(buffer);
|
|
SkASSERT(size == size2);
|
|
|
|
SkASSERT(tmp3 == tmp);
|
|
}
|
|
|
|
rgn.translate(20, 30, &tmp);
|
|
SkASSERT(rgn.isEmpty() || tmp != rgn);
|
|
tmp.translate(-20, -30);
|
|
SkASSERT(tmp == rgn);
|
|
}
|
|
|
|
this->drawOrig(canvas, true);
|
|
|
|
SkPaint paint;
|
|
paint.setColor((color & ~(0xFF << 24)) | (0x44 << 24));
|
|
paint_rgn(canvas, rgn, paint);
|
|
|
|
paint.setStyle(SkPaint::kStroke_Style);
|
|
paint.setColor(color);
|
|
paint_rgn(canvas, rgn, paint);
|
|
}
|
|
|
|
void drawPathOped(SkCanvas* canvas, SkRegion::Op op, SkColor color)
|
|
{
|
|
SkRegion rgn;
|
|
SkPath path;
|
|
|
|
this->build_rgn(&rgn, op);
|
|
rgn.getBoundaryPath(&path);
|
|
|
|
this->drawOrig(canvas, true);
|
|
|
|
SkPaint paint;
|
|
|
|
paint.setStyle(SkPaint::kFill_Style);
|
|
paint.setColor((color & ~(0xFF << 24)) | (0x44 << 24));
|
|
canvas->drawPath(path, paint);
|
|
paint.setColor(color);
|
|
paint.setStyle(SkPaint::kStroke_Style);
|
|
canvas->drawPath(path, paint);
|
|
}
|
|
|
|
void drawBG(SkCanvas* canvas)
|
|
{
|
|
canvas->drawColor(0xFFDDDDDD);
|
|
return;
|
|
|
|
#if 0
|
|
SkColorTable ct;
|
|
SkPMColor colors[] = { SK_ColorRED, SK_ColorBLUE };
|
|
ct.setColors(colors, 2);
|
|
ct.setFlags(ct.getFlags() | SkColorTable::kColorsAreOpaque_Flag);
|
|
|
|
SkBitmap bm;
|
|
bm.setConfig(SkBitmap::kIndex8_Config, 20, 20, 21);
|
|
bm.setColorTable(&ct);
|
|
bm.allocPixels();
|
|
sk_memset16((uint16_t*)bm.getAddr8(0, 0), 0x0001, bm.rowBytes() * bm.height() / 2);
|
|
#endif
|
|
#if 0
|
|
SkBitmap bm;
|
|
bm.setConfig(SkBitmap::kRGB_565_Config, 20, 20, 42);
|
|
bm.allocPixels();
|
|
sk_memset32((uint32_t*)bm.getAddr16(0, 0), 0x0000FFFF, bm.rowBytes() * bm.height() / 4);
|
|
#endif
|
|
#if 1
|
|
SkBitmap bm;
|
|
bm.setConfig(SkBitmap::kARGB_8888_Config, 20, 20);
|
|
bm.allocPixels();
|
|
sk_memset32((uint32_t*)bm.getAddr32(0, 0), 0xFFDDDDDD, bm.rowBytes() * bm.height() / 4);
|
|
#endif
|
|
|
|
SkPaint paint;
|
|
|
|
// SkShader* shader = SkShader::CreateBitmapShader(bm, false, SkPaint::kBilinear_FilterType, SkShader::kRepeat_TileMode);
|
|
SkPoint pts[] = { 0, 0, SkIntToScalar(100), SkIntToScalar(0) };
|
|
SkColor colors[] = { SK_ColorBLACK, SK_ColorWHITE };
|
|
SkShader* shader = SkGradientShader::CreateLinear(pts, colors, NULL, 2, SkShader::kMirror_TileMode);
|
|
paint.setShader(shader)->unref();
|
|
|
|
canvas->drawPaint(paint);
|
|
}
|
|
|
|
virtual void onDraw(SkCanvas* canvas)
|
|
{
|
|
if (true) {
|
|
SkRect r = { 0, 0, 1 << 30, 1 << 30 };
|
|
bool open = canvas->clipRect(r);
|
|
SkDebugf("---- giant clip is %d\n", open);
|
|
}
|
|
this->drawBG(canvas);
|
|
|
|
if (false) {
|
|
SkPaint paint;
|
|
paint.setAntiAlias(true);
|
|
SkBitmap bm;
|
|
bm.setConfig(SkBitmap::kA8_Config, 100, 100);
|
|
bm.allocPixels();
|
|
bm.eraseColor(0);
|
|
SkCanvas c(bm);
|
|
c.drawCircle(50, 50, 50, paint);
|
|
|
|
paint.setColor(SK_ColorBLUE);
|
|
canvas->drawBitmap(bm, 0, 0, &paint);
|
|
canvas->scale(SK_Scalar1/2, SK_Scalar1/2);
|
|
paint.setColor(SK_ColorRED);
|
|
canvas->drawBitmap(bm, 0, 0, &paint);
|
|
return;
|
|
}
|
|
|
|
#ifdef SK_DEBUG
|
|
if (true) {
|
|
SkRegion a, b, c;
|
|
test_union_bug_1505668(&a, &b, &c);
|
|
|
|
if (false) { // draw the result of the test
|
|
SkPaint paint;
|
|
|
|
canvas->translate(SkIntToScalar(10), SkIntToScalar(10));
|
|
paint.setColor(SK_ColorRED);
|
|
paint_rgn(canvas, a, paint);
|
|
paint.setColor(0x800000FF);
|
|
paint_rgn(canvas, b, paint);
|
|
paint.setColor(SK_ColorBLACK);
|
|
paint.setStyle(SkPaint::kStroke_Style);
|
|
// paint_rgn(canvas, c, paint);
|
|
return;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static const struct {
|
|
SkColor fColor;
|
|
const char* fName;
|
|
SkRegion::Op fOp;
|
|
} gOps[] = {
|
|
{ SK_ColorBLACK, "Difference", SkRegion::kDifference_Op },
|
|
{ SK_ColorRED, "Intersect", SkRegion::kIntersect_Op },
|
|
{ 0xFF008800, "Union", SkRegion::kUnion_Op },
|
|
{ SK_ColorBLUE, "XOR", SkRegion::kXOR_Op }
|
|
};
|
|
|
|
SkPaint textPaint;
|
|
textPaint.setAntiAlias(true);
|
|
textPaint.setTextSize(SK_Scalar1*24);
|
|
|
|
this->drawOrig(canvas, false);
|
|
canvas->save();
|
|
canvas->translate(SkIntToScalar(200), 0);
|
|
this->drawRgnOped(canvas, SkRegion::kUnion_Op, SK_ColorBLACK);
|
|
canvas->restore();
|
|
|
|
canvas->translate(0, SkIntToScalar(200));
|
|
|
|
for (int op = 0; op < SK_ARRAY_COUNT(gOps); op++)
|
|
{
|
|
canvas->drawText(gOps[op].fName, strlen(gOps[op].fName), SkIntToScalar(75), SkIntToScalar(50), textPaint);
|
|
|
|
this->drawRgnOped(canvas, gOps[op].fOp, gOps[op].fColor);
|
|
|
|
if (true)
|
|
{
|
|
canvas->save();
|
|
canvas->translate(0, SkIntToScalar(200));
|
|
this->drawPathOped(canvas, gOps[op].fOp, gOps[op].fColor);
|
|
canvas->restore();
|
|
}
|
|
|
|
canvas->translate(SkIntToScalar(200), 0);
|
|
}
|
|
}
|
|
|
|
virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y)
|
|
{
|
|
return fRect.contains(SkScalarRound(x), SkScalarRound(y)) ? new Click(this) : NULL;
|
|
}
|
|
|
|
virtual bool onClick(Click* click)
|
|
{
|
|
fRect.offset(click->fICurr.fX - click->fIPrev.fX,
|
|
click->fICurr.fY - click->fIPrev.fY);
|
|
this->inval(NULL);
|
|
return true;
|
|
}
|
|
|
|
private:
|
|
SkIRect fBase, fRect;
|
|
|
|
typedef SkView INHERITED;
|
|
};
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
static SkView* MyFactory() { return new RegionView; }
|
|
static SkViewRegister reg(MyFactory);
|
|
|