422 lines
15 KiB
C++
422 lines
15 KiB
C++
/*
|
|
* Copyright 2011 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#include "gm.h"
|
|
#include "SkCanvas.h"
|
|
#include "SkPaint.h"
|
|
#include "SkPath.h"
|
|
#include "SkRandom.h"
|
|
|
|
// skbug.com/1316 shows that this cubic, when slightly clipped, creates big
|
|
// (incorrect) changes to its control points.
|
|
class ClippedCubicGM : public skiagm::GM {
|
|
public:
|
|
ClippedCubicGM() {}
|
|
|
|
protected:
|
|
|
|
SkString onShortName() {
|
|
return SkString("clippedcubic");
|
|
}
|
|
|
|
SkISize onISize() { return SkISize::Make(1240, 390); }
|
|
|
|
virtual void onDraw(SkCanvas* canvas) {
|
|
SkPath path;
|
|
path.moveTo(0, 0);
|
|
path.cubicTo(140, 150, 40, 10, 170, 150);
|
|
|
|
SkPaint paint;
|
|
SkRect bounds = path.getBounds();
|
|
|
|
for (SkScalar dy = -1; dy <= 1; dy += 1) {
|
|
canvas->save();
|
|
for (SkScalar dx = -1; dx <= 1; dx += 1) {
|
|
canvas->save();
|
|
canvas->clipRect(bounds);
|
|
canvas->translate(dx, dy);
|
|
canvas->drawPath(path, paint);
|
|
canvas->restore();
|
|
|
|
canvas->translate(bounds.width(), 0);
|
|
}
|
|
canvas->restore();
|
|
canvas->translate(0, bounds.height());
|
|
}
|
|
}
|
|
|
|
private:
|
|
typedef skiagm::GM INHERITED;
|
|
};
|
|
|
|
|
|
class ClippedCubic2GM : public skiagm::GM {
|
|
public:
|
|
ClippedCubic2GM() {}
|
|
|
|
protected:
|
|
|
|
SkString onShortName() override {
|
|
return SkString("clippedcubic2");
|
|
}
|
|
|
|
SkISize onISize() override { return SkISize::Make(1240, 390); }
|
|
|
|
void onDraw(SkCanvas* canvas) override {
|
|
canvas->save();
|
|
canvas->translate(-2, 120);
|
|
drawOne(canvas, fPath, SkRect::MakeLTRB(0, 0, 80, 150));
|
|
canvas->translate(0, 170);
|
|
drawOne(canvas, fPath, SkRect::MakeLTRB(0, 0, 80, 100));
|
|
canvas->translate(0, 170);
|
|
drawOne(canvas, fPath, SkRect::MakeLTRB(0, 0, 30, 150));
|
|
canvas->translate(0, 170);
|
|
drawOne(canvas, fPath, SkRect::MakeLTRB(0, 0, 10, 150));
|
|
canvas->restore();
|
|
canvas->save();
|
|
canvas->translate(20, -2);
|
|
drawOne(canvas, fFlipped, SkRect::MakeLTRB(0, 0, 150, 80));
|
|
canvas->translate(170, 0);
|
|
drawOne(canvas, fFlipped, SkRect::MakeLTRB(0, 0, 100, 80));
|
|
canvas->translate(170, 0);
|
|
drawOne(canvas, fFlipped, SkRect::MakeLTRB(0, 0, 150, 30));
|
|
canvas->translate(170, 0);
|
|
drawOne(canvas, fFlipped, SkRect::MakeLTRB(0, 0, 150, 10));
|
|
canvas->restore();
|
|
}
|
|
|
|
void drawOne(SkCanvas* canvas, const SkPath& path, const SkRect& clip) {
|
|
SkPaint framePaint, fillPaint;
|
|
framePaint.setStyle(SkPaint::kStroke_Style);
|
|
canvas->drawRect(clip, framePaint);
|
|
canvas->drawPath(path, framePaint);
|
|
canvas->save();
|
|
canvas->clipRect(clip);
|
|
canvas->drawPath(path, fillPaint);
|
|
canvas->restore();
|
|
}
|
|
|
|
void onOnceBeforeDraw() override {
|
|
fPath.moveTo(69.7030518991886f, 0);
|
|
fPath.cubicTo( 69.7030518991886f, 21.831149999999997f,
|
|
58.08369508178456f, 43.66448333333333f, 34.8449814469765f, 65.5f);
|
|
fPath.cubicTo( 11.608591683531916f, 87.33115f, -0.010765133872116195f, 109.16448333333332f,
|
|
-0.013089005235602302f, 131);
|
|
fPath.close();
|
|
fFlipped = fPath;
|
|
SkMatrix matrix;
|
|
matrix.reset();
|
|
matrix.setScaleX(0);
|
|
matrix.setScaleY(0);
|
|
matrix.setSkewX(1);
|
|
matrix.setSkewY(1);
|
|
fFlipped.transform(matrix);
|
|
}
|
|
|
|
SkPath fPath;
|
|
SkPath fFlipped;
|
|
private:
|
|
typedef skiagm::GM INHERITED;
|
|
};
|
|
|
|
|
|
class CubicPathGM : public skiagm::GM {
|
|
public:
|
|
CubicPathGM() {}
|
|
|
|
protected:
|
|
|
|
SkString onShortName() {
|
|
return SkString("cubicpath");
|
|
}
|
|
|
|
SkISize onISize() { return SkISize::Make(1240, 390); }
|
|
|
|
void drawPath(SkPath& path,SkCanvas* canvas,SkColor color,
|
|
const SkRect& clip,SkPaint::Cap cap, SkPaint::Join join,
|
|
SkPaint::Style style, SkPath::FillType fill,
|
|
SkScalar strokeWidth) {
|
|
path.setFillType(fill);
|
|
SkPaint paint;
|
|
paint.setStrokeCap(cap);
|
|
paint.setStrokeWidth(strokeWidth);
|
|
paint.setStrokeJoin(join);
|
|
paint.setColor(color);
|
|
paint.setStyle(style);
|
|
canvas->save();
|
|
canvas->clipRect(clip);
|
|
canvas->drawPath(path, paint);
|
|
canvas->restore();
|
|
}
|
|
|
|
virtual void onDraw(SkCanvas* canvas) {
|
|
struct FillAndName {
|
|
SkPath::FillType fFill;
|
|
const char* fName;
|
|
};
|
|
static const FillAndName gFills[] = {
|
|
{SkPath::kWinding_FillType, "Winding"},
|
|
{SkPath::kEvenOdd_FillType, "Even / Odd"},
|
|
{SkPath::kInverseWinding_FillType, "Inverse Winding"},
|
|
{SkPath::kInverseEvenOdd_FillType, "Inverse Even / Odd"},
|
|
};
|
|
struct StyleAndName {
|
|
SkPaint::Style fStyle;
|
|
const char* fName;
|
|
};
|
|
static const StyleAndName gStyles[] = {
|
|
{SkPaint::kFill_Style, "Fill"},
|
|
{SkPaint::kStroke_Style, "Stroke"},
|
|
{SkPaint::kStrokeAndFill_Style, "Stroke And Fill"},
|
|
};
|
|
struct CapAndName {
|
|
SkPaint::Cap fCap;
|
|
SkPaint::Join fJoin;
|
|
const char* fName;
|
|
};
|
|
static const CapAndName gCaps[] = {
|
|
{SkPaint::kButt_Cap, SkPaint::kBevel_Join, "Butt"},
|
|
{SkPaint::kRound_Cap, SkPaint::kRound_Join, "Round"},
|
|
{SkPaint::kSquare_Cap, SkPaint::kBevel_Join, "Square"}
|
|
};
|
|
struct PathAndName {
|
|
SkPath fPath;
|
|
const char* fName;
|
|
};
|
|
PathAndName path;
|
|
path.fPath.moveTo(25*SK_Scalar1, 10*SK_Scalar1);
|
|
path.fPath.cubicTo(40*SK_Scalar1, 20*SK_Scalar1,
|
|
60*SK_Scalar1, 20*SK_Scalar1,
|
|
75*SK_Scalar1, 10*SK_Scalar1);
|
|
path.fName = "moveTo-cubic";
|
|
|
|
SkPaint titlePaint;
|
|
titlePaint.setColor(SK_ColorBLACK);
|
|
titlePaint.setAntiAlias(true);
|
|
sk_tool_utils::set_portable_typeface(&titlePaint);
|
|
titlePaint.setTextSize(15 * SK_Scalar1);
|
|
const char title[] = "Cubic Drawn Into Rectangle Clips With "
|
|
"Indicated Style, Fill and Linecaps, with stroke width 10";
|
|
canvas->drawText(title, strlen(title),
|
|
20 * SK_Scalar1,
|
|
20 * SK_Scalar1,
|
|
titlePaint);
|
|
|
|
SkRandom rand;
|
|
SkRect rect = SkRect::MakeWH(100*SK_Scalar1, 30*SK_Scalar1);
|
|
canvas->save();
|
|
canvas->translate(10 * SK_Scalar1, 30 * SK_Scalar1);
|
|
canvas->save();
|
|
for (size_t cap = 0; cap < SK_ARRAY_COUNT(gCaps); ++cap) {
|
|
if (0 < cap) {
|
|
canvas->translate((rect.width() + 40 * SK_Scalar1) * SK_ARRAY_COUNT(gStyles), 0);
|
|
}
|
|
canvas->save();
|
|
for (size_t fill = 0; fill < SK_ARRAY_COUNT(gFills); ++fill) {
|
|
if (0 < fill) {
|
|
canvas->translate(0, rect.height() + 40 * SK_Scalar1);
|
|
}
|
|
canvas->save();
|
|
for (size_t style = 0; style < SK_ARRAY_COUNT(gStyles); ++style) {
|
|
if (0 < style) {
|
|
canvas->translate(rect.width() + 40 * SK_Scalar1, 0);
|
|
}
|
|
|
|
SkColor color = 0xff007000;
|
|
this->drawPath(path.fPath, canvas, color, rect,
|
|
gCaps[cap].fCap, gCaps[cap].fJoin, gStyles[style].fStyle,
|
|
gFills[fill].fFill, SK_Scalar1*10);
|
|
|
|
SkPaint rectPaint;
|
|
rectPaint.setColor(SK_ColorBLACK);
|
|
rectPaint.setStyle(SkPaint::kStroke_Style);
|
|
rectPaint.setStrokeWidth(-1);
|
|
rectPaint.setAntiAlias(true);
|
|
canvas->drawRect(rect, rectPaint);
|
|
|
|
SkPaint labelPaint;
|
|
labelPaint.setColor(color);
|
|
labelPaint.setAntiAlias(true);
|
|
sk_tool_utils::set_portable_typeface(&labelPaint);
|
|
labelPaint.setTextSize(10 * SK_Scalar1);
|
|
canvas->drawText(gStyles[style].fName,
|
|
strlen(gStyles[style].fName),
|
|
0, rect.height() + 12 * SK_Scalar1,
|
|
labelPaint);
|
|
canvas->drawText(gFills[fill].fName,
|
|
strlen(gFills[fill].fName),
|
|
0, rect.height() + 24 * SK_Scalar1,
|
|
labelPaint);
|
|
canvas->drawText(gCaps[cap].fName,
|
|
strlen(gCaps[cap].fName),
|
|
0, rect.height() + 36 * SK_Scalar1,
|
|
labelPaint);
|
|
}
|
|
canvas->restore();
|
|
}
|
|
canvas->restore();
|
|
}
|
|
canvas->restore();
|
|
canvas->restore();
|
|
}
|
|
|
|
private:
|
|
typedef skiagm::GM INHERITED;
|
|
};
|
|
|
|
class CubicClosePathGM : public skiagm::GM {
|
|
public:
|
|
CubicClosePathGM() {}
|
|
|
|
protected:
|
|
|
|
SkString onShortName() {
|
|
return SkString("cubicclosepath");
|
|
}
|
|
|
|
SkISize onISize() { return SkISize::Make(1240, 390); }
|
|
|
|
void drawPath(SkPath& path,SkCanvas* canvas,SkColor color,
|
|
const SkRect& clip,SkPaint::Cap cap, SkPaint::Join join,
|
|
SkPaint::Style style, SkPath::FillType fill,
|
|
SkScalar strokeWidth) {
|
|
path.setFillType(fill);
|
|
SkPaint paint;
|
|
paint.setStrokeCap(cap);
|
|
paint.setStrokeWidth(strokeWidth);
|
|
paint.setStrokeJoin(join);
|
|
paint.setColor(color);
|
|
paint.setStyle(style);
|
|
canvas->save();
|
|
canvas->clipRect(clip);
|
|
canvas->drawPath(path, paint);
|
|
canvas->restore();
|
|
}
|
|
|
|
virtual void onDraw(SkCanvas* canvas) {
|
|
struct FillAndName {
|
|
SkPath::FillType fFill;
|
|
const char* fName;
|
|
};
|
|
static const FillAndName gFills[] = {
|
|
{SkPath::kWinding_FillType, "Winding"},
|
|
{SkPath::kEvenOdd_FillType, "Even / Odd"},
|
|
{SkPath::kInverseWinding_FillType, "Inverse Winding"},
|
|
{SkPath::kInverseEvenOdd_FillType, "Inverse Even / Odd"},
|
|
};
|
|
struct StyleAndName {
|
|
SkPaint::Style fStyle;
|
|
const char* fName;
|
|
};
|
|
static const StyleAndName gStyles[] = {
|
|
{SkPaint::kFill_Style, "Fill"},
|
|
{SkPaint::kStroke_Style, "Stroke"},
|
|
{SkPaint::kStrokeAndFill_Style, "Stroke And Fill"},
|
|
};
|
|
struct CapAndName {
|
|
SkPaint::Cap fCap;
|
|
SkPaint::Join fJoin;
|
|
const char* fName;
|
|
};
|
|
static const CapAndName gCaps[] = {
|
|
{SkPaint::kButt_Cap, SkPaint::kBevel_Join, "Butt"},
|
|
{SkPaint::kRound_Cap, SkPaint::kRound_Join, "Round"},
|
|
{SkPaint::kSquare_Cap, SkPaint::kBevel_Join, "Square"}
|
|
};
|
|
struct PathAndName {
|
|
SkPath fPath;
|
|
const char* fName;
|
|
};
|
|
PathAndName path;
|
|
path.fPath.moveTo(25*SK_Scalar1, 10*SK_Scalar1);
|
|
path.fPath.cubicTo(40*SK_Scalar1, 20*SK_Scalar1,
|
|
60*SK_Scalar1, 20*SK_Scalar1,
|
|
75*SK_Scalar1, 10*SK_Scalar1);
|
|
path.fPath.close();
|
|
path.fName = "moveTo-cubic-close";
|
|
|
|
SkPaint titlePaint;
|
|
titlePaint.setColor(SK_ColorBLACK);
|
|
titlePaint.setAntiAlias(true);
|
|
sk_tool_utils::set_portable_typeface(&titlePaint);
|
|
titlePaint.setTextSize(15 * SK_Scalar1);
|
|
const char title[] = "Cubic Closed Drawn Into Rectangle Clips With "
|
|
"Indicated Style, Fill and Linecaps, with stroke width 10";
|
|
canvas->drawText(title, strlen(title),
|
|
20 * SK_Scalar1,
|
|
20 * SK_Scalar1,
|
|
titlePaint);
|
|
|
|
SkRandom rand;
|
|
SkRect rect = SkRect::MakeWH(100*SK_Scalar1, 30*SK_Scalar1);
|
|
canvas->save();
|
|
canvas->translate(10 * SK_Scalar1, 30 * SK_Scalar1);
|
|
canvas->save();
|
|
for (size_t cap = 0; cap < SK_ARRAY_COUNT(gCaps); ++cap) {
|
|
if (0 < cap) {
|
|
canvas->translate((rect.width() + 40 * SK_Scalar1) * SK_ARRAY_COUNT(gStyles), 0);
|
|
}
|
|
canvas->save();
|
|
for (size_t fill = 0; fill < SK_ARRAY_COUNT(gFills); ++fill) {
|
|
if (0 < fill) {
|
|
canvas->translate(0, rect.height() + 40 * SK_Scalar1);
|
|
}
|
|
canvas->save();
|
|
for (size_t style = 0; style < SK_ARRAY_COUNT(gStyles); ++style) {
|
|
if (0 < style) {
|
|
canvas->translate(rect.width() + 40 * SK_Scalar1, 0);
|
|
}
|
|
|
|
SkColor color = 0xff007000;
|
|
this->drawPath(path.fPath, canvas, color, rect,
|
|
gCaps[cap].fCap, gCaps[cap].fJoin, gStyles[style].fStyle,
|
|
gFills[fill].fFill, SK_Scalar1*10);
|
|
|
|
SkPaint rectPaint;
|
|
rectPaint.setColor(SK_ColorBLACK);
|
|
rectPaint.setStyle(SkPaint::kStroke_Style);
|
|
rectPaint.setStrokeWidth(-1);
|
|
rectPaint.setAntiAlias(true);
|
|
canvas->drawRect(rect, rectPaint);
|
|
|
|
SkPaint labelPaint;
|
|
labelPaint.setColor(color);
|
|
labelPaint.setAntiAlias(true);
|
|
sk_tool_utils::set_portable_typeface(&labelPaint);
|
|
labelPaint.setTextSize(10 * SK_Scalar1);
|
|
canvas->drawText(gStyles[style].fName,
|
|
strlen(gStyles[style].fName),
|
|
0, rect.height() + 12 * SK_Scalar1,
|
|
labelPaint);
|
|
canvas->drawText(gFills[fill].fName,
|
|
strlen(gFills[fill].fName),
|
|
0, rect.height() + 24 * SK_Scalar1,
|
|
labelPaint);
|
|
canvas->drawText(gCaps[cap].fName,
|
|
strlen(gCaps[cap].fName),
|
|
0, rect.height() + 36 * SK_Scalar1,
|
|
labelPaint);
|
|
}
|
|
canvas->restore();
|
|
}
|
|
canvas->restore();
|
|
}
|
|
canvas->restore();
|
|
canvas->restore();
|
|
}
|
|
|
|
private:
|
|
typedef skiagm::GM INHERITED;
|
|
};
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
DEF_GM( return new CubicPathGM; )
|
|
DEF_GM( return new CubicClosePathGM; )
|
|
DEF_GM( return new ClippedCubicGM; )
|
|
DEF_GM( return new ClippedCubic2GM; )
|