| |
| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| |
| #include <iostream> |
| #include "SkDebugCanvas.h" |
| #include "SkDrawCommand.h" |
| #include "SkDevice.h" |
| #include "SkImageWidget.h" |
| |
| static SkBitmap make_noconfig_bm(int width, int height) { |
| SkBitmap bm; |
| bm.setConfig(SkBitmap::kNo_Config, width, height); |
| return bm; |
| } |
| |
| SkDebugCanvas::SkDebugCanvas(int width, int height) |
| : INHERITED(make_noconfig_bm(width, height)) |
| , fOutstandingSaveCount(0) { |
| // TODO(chudy): Free up memory from all draw commands in destructor. |
| fWidth = width; |
| fHeight = height; |
| // do we need fBm anywhere? |
| fBm.setConfig(SkBitmap::kNo_Config, fWidth, fHeight); |
| fFilter = false; |
| fIndex = 0; |
| fUserOffset.set(0,0); |
| fUserScale = 1.0; |
| } |
| |
| SkDebugCanvas::~SkDebugCanvas() { |
| fCommandVector.deleteAll(); |
| } |
| |
| void SkDebugCanvas::addDrawCommand(SkDrawCommand* command) { |
| fCommandVector.push(command); |
| } |
| |
| void SkDebugCanvas::draw(SkCanvas* canvas) { |
| if(!fCommandVector.isEmpty()) { |
| for (int i = 0; i < fCommandVector.count(); i++) { |
| if (fCommandVector[i]->isVisible()) { |
| fCommandVector[i]->execute(canvas); |
| } |
| } |
| } |
| fIndex = fCommandVector.count() - 1; |
| } |
| |
| void SkDebugCanvas::applyUserTransform(SkCanvas* canvas) { |
| canvas->translate(SkIntToScalar(fUserOffset.fX), |
| SkIntToScalar(fUserOffset.fY)); |
| if (fUserScale < 0) { |
| canvas->scale((1.0f / -fUserScale), (1.0f / -fUserScale)); |
| } else if (fUserScale > 0) { |
| canvas->scale(fUserScale, fUserScale); |
| } |
| } |
| |
| int SkDebugCanvas::getCommandAtPoint(int x, int y, int index) { |
| SkBitmap bitmap; |
| bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1, 1); |
| bitmap.allocPixels(); |
| |
| SkCanvas canvas(bitmap); |
| canvas.translate(SkIntToScalar(-x), SkIntToScalar(-y)); |
| applyUserTransform(&canvas); |
| |
| int layer = 0; |
| SkColor prev = bitmap.getColor(0,0); |
| for (int i = 0; i < index; i++) { |
| if (fCommandVector[i]->isVisible()) { |
| fCommandVector[i]->execute(&canvas); |
| } |
| if (prev != bitmap.getColor(0,0)) { |
| layer = i; |
| } |
| prev = bitmap.getColor(0,0); |
| } |
| return layer; |
| } |
| |
| void SkDebugCanvas::drawTo(SkCanvas* canvas, int index) { |
| int counter = 0; |
| SkASSERT(!fCommandVector.isEmpty()); |
| SkASSERT(index < fCommandVector.count()); |
| int i; |
| |
| // This only works assuming the canvas and device are the same ones that |
| // were previously drawn into because they need to preserve all saves |
| // and restores. |
| if (fIndex < index) { |
| i = fIndex + 1; |
| } else { |
| for (int j = 0; j < fOutstandingSaveCount; j++) { |
| canvas->restore(); |
| } |
| i = 0; |
| canvas->clear(SK_ColorTRANSPARENT); |
| canvas->resetMatrix(); |
| SkRect rect = SkRect::MakeWH(SkIntToScalar(fWidth), |
| SkIntToScalar(fHeight)); |
| canvas->clipRect(rect, SkRegion::kReplace_Op ); |
| applyUserTransform(canvas); |
| fOutstandingSaveCount = 0; |
| } |
| |
| for (; i <= index; i++) { |
| if (i == index && fFilter) { |
| SkPaint p; |
| p.setColor(0xAAFFFFFF); |
| canvas->save(); |
| canvas->resetMatrix(); |
| SkRect mask; |
| mask.set(SkIntToScalar(0), SkIntToScalar(0), |
| SkIntToScalar(fWidth), SkIntToScalar(fHeight)); |
| canvas->clipRect(mask, SkRegion::kReplace_Op, false); |
| canvas->drawRectCoords(SkIntToScalar(0), SkIntToScalar(0), |
| SkIntToScalar(fWidth), SkIntToScalar(fHeight), p); |
| canvas->restore(); |
| } |
| |
| if (fCommandVector[i]->isVisible()) { |
| fCommandVector[i]->execute(canvas); |
| fCommandVector[i]->trackSaveState(&fOutstandingSaveCount); |
| } |
| } |
| fMatrix = canvas->getTotalMatrix(); |
| fClip = canvas->getTotalClip().getBounds(); |
| fIndex = index; |
| } |
| |
| SkDrawCommand* SkDebugCanvas::getDrawCommandAt(int index) { |
| SkASSERT(index < fCommandVector.count()); |
| return fCommandVector[index]; |
| } |
| |
| SkTDArray<SkString*>* SkDebugCanvas::getCommandInfo(int index) { |
| SkASSERT(index < fCommandVector.count()); |
| return fCommandVector[index]->Info(); |
| } |
| |
| bool SkDebugCanvas::getDrawCommandVisibilityAt(int index) { |
| SkASSERT(index < fCommandVector.count()); |
| return fCommandVector[index]->isVisible(); |
| } |
| |
| const SkTDArray <SkDrawCommand*>& SkDebugCanvas::getDrawCommands() const { |
| return fCommandVector; |
| } |
| |
| // TODO(chudy): Free command string memory. |
| SkTArray<SkString>* SkDebugCanvas::getDrawCommandsAsStrings() const { |
| SkTArray<SkString>* commandString = new SkTArray<SkString>(fCommandVector.count()); |
| if (!fCommandVector.isEmpty()) { |
| for (int i = 0; i < fCommandVector.count(); i ++) { |
| commandString->push_back() = fCommandVector[i]->toString(); |
| } |
| } |
| return commandString; |
| } |
| |
| void SkDebugCanvas::toggleFilter(bool toggle) { |
| fFilter = toggle; |
| } |
| |
| void SkDebugCanvas::clear(SkColor color) { |
| addDrawCommand(new Clear(color)); |
| } |
| |
| static SkBitmap createBitmap(const SkPath& path) { |
| SkBitmap bitmap; |
| bitmap.setConfig(SkBitmap::kARGB_8888_Config, |
| SkImageWidget::kImageWidgetWidth, |
| SkImageWidget::kImageWidgetHeight); |
| bitmap.allocPixels(); |
| bitmap.eraseColor(SK_ColorWHITE); |
| SkDevice* device = new SkDevice(bitmap); |
| |
| SkCanvas canvas(device); |
| device->unref(); |
| |
| const SkRect& bounds = path.getBounds(); |
| |
| if (bounds.width() > bounds.height()) { |
| canvas.scale(SkDoubleToScalar((0.9*SkImageWidget::kImageWidgetWidth)/bounds.width()), |
| SkDoubleToScalar((0.9*SkImageWidget::kImageWidgetHeight)/bounds.width())); |
| } else { |
| canvas.scale(SkDoubleToScalar((0.9*SkImageWidget::kImageWidgetWidth)/bounds.height()), |
| SkDoubleToScalar((0.9*SkImageWidget::kImageWidgetHeight)/bounds.height())); |
| } |
| canvas.translate(-bounds.fLeft+2, -bounds.fTop+2); |
| |
| SkPaint p; |
| p.setColor(SK_ColorBLACK); |
| p.setStyle(SkPaint::kStroke_Style); |
| |
| canvas.drawPath(path, p); |
| |
| return bitmap; |
| } |
| |
| static SkBitmap createBitmap(const SkBitmap& input, const SkRect* srcRect) { |
| SkBitmap bitmap; |
| bitmap.setConfig(SkBitmap::kARGB_8888_Config, |
| SkImageWidget::kImageWidgetWidth, |
| SkImageWidget::kImageWidgetHeight); |
| bitmap.allocPixels(); |
| bitmap.eraseColor(SK_ColorLTGRAY); |
| SkDevice* device = new SkDevice(bitmap); |
| |
| SkCanvas canvas(device); |
| device->unref(); |
| |
| SkScalar xScale = (SkImageWidget::kImageWidgetWidth-2.0) / input.width(); |
| SkScalar yScale = (SkImageWidget::kImageWidgetHeight-2.0) / input.height(); |
| |
| if (input.width() > input.height()) { |
| yScale *= input.height() / (float) input.width(); |
| } else { |
| xScale *= input.width() / (float) input.height(); |
| } |
| |
| SkRect dst = SkRect::MakeXYWH(SK_Scalar1, SK_Scalar1, |
| xScale * input.width(), |
| yScale * input.height()); |
| |
| canvas.drawBitmapRect(input, NULL, dst); |
| |
| if (NULL != srcRect) { |
| SkRect r = SkRect::MakeLTRB(srcRect->fLeft * xScale + SK_Scalar1, |
| srcRect->fTop * yScale + SK_Scalar1, |
| srcRect->fRight * xScale + SK_Scalar1, |
| srcRect->fBottom * yScale + SK_Scalar1); |
| SkPaint p; |
| p.setColor(SK_ColorRED); |
| p.setStyle(SkPaint::kStroke_Style); |
| |
| canvas.drawRect(r, p); |
| } |
| |
| return bitmap; |
| } |
| |
| bool SkDebugCanvas::clipPath(const SkPath& path, SkRegion::Op op, bool doAA) { |
| SkBitmap bitmap = createBitmap(path); |
| addDrawCommand(new ClipPath(path, op, doAA, bitmap)); |
| return true; |
| } |
| |
| bool SkDebugCanvas::clipRect(const SkRect& rect, SkRegion::Op op, bool doAA) { |
| addDrawCommand(new ClipRect(rect, op, doAA)); |
| return true; |
| } |
| |
| bool SkDebugCanvas::clipRRect(const SkRRect& rrect, SkRegion::Op op, bool doAA) { |
| addDrawCommand(new ClipRRect(rrect, op, doAA)); |
| return true; |
| } |
| |
| bool SkDebugCanvas::clipRegion(const SkRegion& region, SkRegion::Op op) { |
| addDrawCommand(new ClipRegion(region, op)); |
| return true; |
| } |
| |
| bool SkDebugCanvas::concat(const SkMatrix& matrix) { |
| addDrawCommand(new Concat(matrix)); |
| return true; |
| } |
| |
| void SkDebugCanvas::drawBitmap(const SkBitmap& bitmap, SkScalar left, |
| SkScalar top, const SkPaint* paint = NULL) { |
| SkBitmap resizedBitmap = createBitmap(bitmap, NULL); |
| addDrawCommand(new DrawBitmap(bitmap, left, top, paint, resizedBitmap)); |
| } |
| |
| void SkDebugCanvas::drawBitmapRectToRect(const SkBitmap& bitmap, |
| const SkRect* src, const SkRect& dst, const SkPaint* paint) { |
| SkBitmap resizedBitmap = createBitmap(bitmap, src); |
| addDrawCommand(new DrawBitmapRect(bitmap, src, dst, paint, resizedBitmap)); |
| } |
| |
| void SkDebugCanvas::drawBitmapMatrix(const SkBitmap& bitmap, |
| const SkMatrix& matrix, const SkPaint* paint) { |
| SkBitmap resizedBitmap = createBitmap(bitmap, NULL); |
| addDrawCommand(new DrawBitmapMatrix(bitmap, matrix, paint, resizedBitmap)); |
| } |
| |
| void SkDebugCanvas::drawBitmapNine(const SkBitmap& bitmap, |
| const SkIRect& center, const SkRect& dst, const SkPaint* paint) { |
| SkBitmap resizedBitmap = createBitmap(bitmap, NULL); |
| addDrawCommand(new DrawBitmapNine(bitmap, center, dst, paint, resizedBitmap)); |
| } |
| |
| void SkDebugCanvas::drawData(const void* data, size_t length) { |
| addDrawCommand(new DrawData(data, length)); |
| } |
| |
| void SkDebugCanvas::drawOval(const SkRect& oval, const SkPaint& paint) { |
| addDrawCommand(new DrawOval(oval, paint)); |
| } |
| |
| void SkDebugCanvas::drawPaint(const SkPaint& paint) { |
| addDrawCommand(new DrawPaint(paint)); |
| } |
| |
| void SkDebugCanvas::drawPath(const SkPath& path, const SkPaint& paint) { |
| SkBitmap bitmap = createBitmap(path); |
| addDrawCommand(new DrawPath(path, paint, bitmap)); |
| } |
| |
| void SkDebugCanvas::drawPicture(SkPicture& picture) { |
| addDrawCommand(new DrawPicture(picture)); |
| } |
| |
| void SkDebugCanvas::drawPoints(PointMode mode, size_t count, |
| const SkPoint pts[], const SkPaint& paint) { |
| addDrawCommand(new DrawPoints(mode, count, pts, paint)); |
| } |
| |
| void SkDebugCanvas::drawPosText(const void* text, size_t byteLength, |
| const SkPoint pos[], const SkPaint& paint) { |
| addDrawCommand(new DrawPosText(text, byteLength, pos, paint)); |
| } |
| |
| void SkDebugCanvas::drawPosTextH(const void* text, size_t byteLength, |
| const SkScalar xpos[], SkScalar constY, const SkPaint& paint) { |
| addDrawCommand(new DrawPosTextH(text, byteLength, xpos, constY, paint)); |
| } |
| |
| void SkDebugCanvas::drawRect(const SkRect& rect, const SkPaint& paint) { |
| // NOTE(chudy): Messing up when renamed to DrawRect... Why? |
| addDrawCommand(new DrawRectC(rect, paint)); |
| } |
| |
| void SkDebugCanvas::drawRRect(const SkRRect& rrect, const SkPaint& paint) { |
| addDrawCommand(new DrawRRect(rrect, paint)); |
| } |
| |
| void SkDebugCanvas::drawSprite(const SkBitmap& bitmap, int left, int top, |
| const SkPaint* paint = NULL) { |
| SkBitmap resizedBitmap = createBitmap(bitmap, NULL); |
| addDrawCommand(new DrawSprite(bitmap, left, top, paint, resizedBitmap)); |
| } |
| |
| void SkDebugCanvas::drawText(const void* text, size_t byteLength, SkScalar x, |
| SkScalar y, const SkPaint& paint) { |
| addDrawCommand(new DrawTextC(text, byteLength, x, y, paint)); |
| } |
| |
| void SkDebugCanvas::drawTextOnPath(const void* text, size_t byteLength, |
| const SkPath& path, const SkMatrix* matrix, const SkPaint& paint) { |
| addDrawCommand(new DrawTextOnPath(text, byteLength, path, matrix, paint)); |
| } |
| |
| void SkDebugCanvas::drawVertices(VertexMode vmode, int vertexCount, |
| const SkPoint vertices[], const SkPoint texs[], const SkColor colors[], |
| SkXfermode*, const uint16_t indices[], int indexCount, |
| const SkPaint& paint) { |
| addDrawCommand(new DrawVertices(vmode, vertexCount, vertices, texs, colors, |
| NULL, indices, indexCount, paint)); |
| } |
| |
| void SkDebugCanvas::restore() { |
| addDrawCommand(new Restore()); |
| } |
| |
| bool SkDebugCanvas::rotate(SkScalar degrees) { |
| addDrawCommand(new Rotate(degrees)); |
| return true; |
| } |
| |
| int SkDebugCanvas::save(SaveFlags flags) { |
| addDrawCommand(new Save(flags)); |
| return true; |
| } |
| |
| int SkDebugCanvas::saveLayer(const SkRect* bounds, const SkPaint* paint, |
| SaveFlags flags) { |
| addDrawCommand(new SaveLayer(bounds, paint, flags)); |
| return true; |
| } |
| |
| bool SkDebugCanvas::scale(SkScalar sx, SkScalar sy) { |
| addDrawCommand(new Scale(sx, sy)); |
| return true; |
| } |
| |
| void SkDebugCanvas::setMatrix(const SkMatrix& matrix) { |
| addDrawCommand(new SetMatrix(matrix)); |
| } |
| |
| bool SkDebugCanvas::skew(SkScalar sx, SkScalar sy) { |
| addDrawCommand(new Skew(sx, sy)); |
| return true; |
| } |
| |
| bool SkDebugCanvas::translate(SkScalar dx, SkScalar dy) { |
| addDrawCommand(new Translate(dx, dy)); |
| return true; |
| } |
| |
| void SkDebugCanvas::toggleCommand(int index, bool toggle) { |
| SkASSERT(index < fCommandVector.count()); |
| fCommandVector[index]->setVisible(toggle); |
| } |