Remove file samplecode/SampleDraw.cpp
The file is not used in any build target and seems dead, i.e. failed to compile when I added it to the SampleApp target. BUG=None GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2269583002 Review-Url: https://codereview.chromium.org/2269583002
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martina.kollarova
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@ -1,378 +0,0 @@
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/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SampleCode.h"
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#include "SkView.h"
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#include "SkCanvas.h"
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#include "SkGraphics.h"
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#include "SkRandom.h"
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static void test_clearonlayers(SkCanvas* canvas) {
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SkCanvas& c = *canvas;
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SkPaint paint;
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paint.setColor(SK_ColorBLUE);
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paint.setStyle(SkPaint::kStrokeAndFill_Style);
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SkRect rect = SkRect::MakeXYWH(25, 25, 50, 50);
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c.drawRect(rect, paint);
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c.clipRect(rect);
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c.saveLayer(nullptr, nullptr);
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rect = SkRect::MakeXYWH(50, 10, 40, 80);
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c.clipRect(rect, SkRegion::kUnion_Op);
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rect = SkRect::MakeXYWH(50, 0, 50, 100);
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// You might draw something here, but it's not necessary.
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// paint.setColor(SK_ColorRED);
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// c.drawRect(rect, paint);
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paint.setXfermodeMode(SkXfermode::kClear_Mode);
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c.drawRect(rect, paint);
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c.restore();
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}
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static void test_strokerect(SkCanvas* canvas, const SkRect& r) {
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SkPaint p;
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p.setAntiAlias(true);
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p.setStyle(SkPaint::kStroke_Style);
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p.setStrokeWidth(4);
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canvas->drawRect(r, p);
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SkPath path;
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SkRect r2(r);
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r2.offset(18, 0);
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path.addRect(r2);
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canvas->drawPath(path, p);
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}
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static void test_strokerect(SkCanvas* canvas) {
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canvas->drawColor(SK_ColorWHITE);
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SkRect r;
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r.set(10, 10, 14, 14);
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r.offset(0.25f, 0.3333f);
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test_strokerect(canvas, r);
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canvas->translate(0, 20);
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r.set(10, 10, 14.5f, 14.5f);
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r.offset(0.25f, 0.3333f);
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test_strokerect(canvas, r);
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canvas->translate(0, 20);
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r.set(10, 10, 14.5f, 20);
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r.offset(0.25f, 0.3333f);
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test_strokerect(canvas, r);
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canvas->translate(0, 20);
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r.set(10, 10, 20, 14.5f);
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r.offset(0.25f, 0.3333f);
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test_strokerect(canvas, r);
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canvas->translate(0, 20);
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r.set(10, 10, 20, 20);
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r.offset(0.25f, 0.3333f);
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test_strokerect(canvas, r);
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canvas->translate(0, 20);
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}
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class Draw : public SkRefCnt {
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public:
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Draw() : fFlags(0) {}
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enum Flags {
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kSelected_Flag = 1 << 0
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};
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int getFlags() const { return fFlags; }
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void setFlags(int flags);
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bool isSelected() const { return SkToBool(fFlags & kSelected_Flag); }
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void setSelected(bool pred) {
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if (pred) {
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fFlags |= kSelected_Flag;
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} else {
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fFlags &= ~kSelected_Flag;
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}
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}
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void draw(SkCanvas* canvas) {
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int sc = canvas->save();
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this->onDraw(canvas);
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canvas->restoreToCount(sc);
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if (this->isSelected()) {
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this->drawSelection(canvas);
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}
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}
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void drawSelection(SkCanvas* canvas) {
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int sc = canvas->save();
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this->onDrawSelection(canvas);
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canvas->restoreToCount(sc);
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}
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void getBounds(SkRect* bounds) {
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this->onGetBounds(bounds);
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}
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bool hitTest(SkScalar x, SkScalar y) {
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return this->onHitTest(x, y);
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}
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void offset(SkScalar dx, SkScalar dy) {
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if (dx || dy) {
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this->onOffset(dx, dy);
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}
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}
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protected:
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virtual void onDraw(SkCanvas*) = 0;
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virtual void onGetBounds(SkRect*) = 0;
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virtual void onOffset(SkScalar dx, SkScalar dy) = 0;
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virtual void onDrawSelection(SkCanvas* canvas) {
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SkRect r;
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this->getBounds(&r);
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SkPaint paint;
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SkPoint pts[4];
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r.toQuad(pts);
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paint.setStrokeWidth(SkIntToScalar(10));
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paint.setColor(0x80FF8844);
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paint.setStrokeCap(SkPaint::kRound_Cap);
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canvas->drawPoints(SkCanvas::kPoints_PointMode, 4, pts, paint);
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}
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virtual bool onHitTest(SkScalar x, SkScalar y) {
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SkRect bounds;
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this->getBounds(&bounds);
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return bounds.contains(x, y);
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}
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private:
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int fFlags;
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};
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class RDraw : public Draw {
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public:
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enum Style {
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kRect_Style,
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kOval_Style,
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kRRect_Style,
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kFrame_Style
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};
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RDraw(const SkRect& r, Style s) : fRect(r), fStyle(s) {}
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void setRect(const SkRect& r) {
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fRect = r;
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}
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void setPaint(const SkPaint& p) {
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fPaint = p;
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}
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protected:
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virtual void onDraw(SkCanvas* canvas) {
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switch (fStyle) {
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case kRect_Style:
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canvas->drawRect(fRect, fPaint);
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break;
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case kOval_Style:
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canvas->drawOval(fRect, fPaint);
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break;
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case kRRect_Style: {
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SkScalar rx = fRect.width() / 5;
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SkScalar ry = fRect.height() / 5;
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if (rx < ry) {
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ry = rx;
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} else {
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rx = ry;
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}
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canvas->drawRoundRect(fRect, rx, ry, fPaint);
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break;
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}
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case kFrame_Style: {
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SkPath path;
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path.addOval(fRect, SkPath::kCW_Direction);
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SkRect r = fRect;
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r.inset(fRect.width()/6, 0);
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path.addOval(r, SkPath::kCCW_Direction);
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canvas->drawPath(path, fPaint);
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break;
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}
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}
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}
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virtual void onGetBounds(SkRect* bounds) {
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*bounds = fRect;
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}
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virtual void onOffset(SkScalar dx, SkScalar dy) {
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fRect.offset(dx, dy);
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}
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private:
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SkRect fRect;
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SkPaint fPaint;
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Style fStyle;
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};
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class DrawFactory {
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public:
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DrawFactory() {
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fPaint.setAntiAlias(true);
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}
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const SkPaint& getPaint() const { return fPaint; }
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void setPaint(const SkPaint& p) {
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fPaint = p;
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}
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virtual Draw* create(const SkPoint&, const SkPoint&) = 0;
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private:
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SkPaint fPaint;
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};
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class RectFactory : public DrawFactory {
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public:
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virtual Draw* create(const SkPoint& p0, const SkPoint& p1) {
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SkRect r;
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r.set(p0.x(), p0.y(), p1.x(), p1.y());
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r.sort();
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// RDraw* d = new RDraw(r, RDraw::kRRect_Style);
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RDraw* d = new RDraw(r, RDraw::kFrame_Style);
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d->setPaint(this->getPaint());
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return d;
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}
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};
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class DrawView : public SkView {
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Draw* fDraw;
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DrawFactory* fFactory;
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SkRandom fRand;
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SkTDArray<Draw*> fList;
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public:
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DrawView() : fDraw(nullptr) {
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fFactory = new RectFactory;
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}
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virtual ~DrawView() {
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fList.unrefAll();
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SkSafeUnref(fDraw);
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delete fFactory;
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}
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Draw* setDraw(Draw* d) {
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SkRefCnt_SafeAssign(fDraw, d);
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return d;
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}
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SkColor randColor() {
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return (SkColor)fRand.nextU() | 0xFF000000;
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}
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Draw* hitTestList(SkScalar x, SkScalar y) const {
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Draw** first = fList.begin();
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for (Draw** iter = fList.end(); iter > first;) {
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--iter;
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if ((*iter)->hitTest(x, y)) {
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return *iter;
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}
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}
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return nullptr;
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}
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protected:
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// overrides from SkEventSink
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virtual bool onQuery(SkEvent* evt) {
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if (SampleCode::TitleQ(*evt)) {
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SampleCode::TitleR(evt, "Draw");
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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void drawBG(SkCanvas* canvas) {
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canvas->drawColor(0xFFDDDDDD);
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// canvas->drawColor(SK_ColorWHITE);
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}
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virtual void onDraw(SkCanvas* canvas) {
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this->drawBG(canvas);
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test_clearonlayers(canvas); return;
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// test_strokerect(canvas); return;
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for (Draw** iter = fList.begin(); iter < fList.end(); iter++) {
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(*iter)->draw(canvas);
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}
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if (fDraw) {
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fDraw->draw(canvas);
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}
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}
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virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) {
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for (Draw** iter = fList.begin(); iter < fList.end(); iter++) {
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(*iter)->setSelected(false);
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}
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Click* c = new Click(this);
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Draw* d = this->hitTestList(x, y);
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if (d) {
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d->setSelected(true);
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c->setType("dragger");
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} else {
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c->setType("maker");
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}
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return c;
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}
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virtual bool onClick(Click* click) {
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if (Click::kUp_State == click->fState) {
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if (click->isType("maker")) {
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if (SkPoint::Distance(click->fOrig, click->fCurr) > SkIntToScalar(3)) {
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*fList.append() = fDraw;
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} else {
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fDraw->unref();
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}
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fDraw = nullptr;
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}
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return true;
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}
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if (Click::kDown_State == click->fState) {
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SkPaint p = fFactory->getPaint();
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p.setColor(this->randColor());
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fFactory->setPaint(p);
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}
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if (click->isType("maker")) {
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this->setDraw(fFactory->create(click->fOrig, click->fCurr))->unref();
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} else if (click->isType("dragger")) {
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for (Draw** iter = fList.begin(); iter < fList.end(); iter++) {
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if ((*iter)->isSelected()) {
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(*iter)->offset(click->fCurr.x() - click->fPrev.x(),
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click->fCurr.y() - click->fPrev.y());
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}
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}
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}
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this->inval(nullptr);
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return true;
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}
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private:
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typedef SkView INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static SkView* MyFactory() { return new DrawView; }
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static SkViewRegister reg(MyFactory);
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