dbfac8a723
Review URL: https://codereview.appspot.com/6901044 git-svn-id: http://skia.googlecode.com/svn/trunk@6696 2bbb7eff-a529-9590-31e7-b0007b416f81
399 lines
12 KiB
C++
399 lines
12 KiB
C++
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/*
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* Copyright 2012 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 <iostream>
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#include "SkDebugCanvas.h"
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#include "SkDrawCommand.h"
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#include "SkDevice.h"
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#include "SkImageWidget.h"
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static SkBitmap make_noconfig_bm(int width, int height) {
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SkBitmap bm;
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bm.setConfig(SkBitmap::kNo_Config, width, height);
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return bm;
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}
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SkDebugCanvas::SkDebugCanvas(int width, int height)
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: INHERITED(make_noconfig_bm(width, height))
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, fOutstandingSaveCount(0) {
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// TODO(chudy): Free up memory from all draw commands in destructor.
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fWidth = width;
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fHeight = height;
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// do we need fBm anywhere?
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fBm.setConfig(SkBitmap::kNo_Config, fWidth, fHeight);
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fFilter = false;
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fIndex = 0;
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fUserOffset.set(0,0);
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fUserScale = 1.0;
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}
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SkDebugCanvas::~SkDebugCanvas() {
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commandVector.deleteAll();
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}
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void SkDebugCanvas::addDrawCommand(SkDrawCommand* command) {
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commandVector.push(command);
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}
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void SkDebugCanvas::draw(SkCanvas* canvas) {
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if(!commandVector.isEmpty()) {
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for (int i = 0; i < commandVector.count(); i++) {
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if (commandVector[i]->isVisible()) {
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commandVector[i]->execute(canvas);
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}
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}
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}
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fIndex = commandVector.count() - 1;
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}
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void SkDebugCanvas::applyUserTransform(SkCanvas* canvas) {
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canvas->translate(SkIntToScalar(fUserOffset.fX),
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SkIntToScalar(fUserOffset.fY));
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if (fUserScale < 0) {
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canvas->scale((1.0f / -fUserScale), (1.0f / -fUserScale));
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} else if (fUserScale > 0) {
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canvas->scale(fUserScale, fUserScale);
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}
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}
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int SkDebugCanvas::getCommandAtPoint(int x, int y, int index) {
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SkBitmap bitmap;
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bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1, 1);
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bitmap.allocPixels();
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SkCanvas canvas(bitmap);
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canvas.translate(SkIntToScalar(-x), SkIntToScalar(-y));
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applyUserTransform(&canvas);
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int layer = 0;
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SkColor prev = bitmap.getColor(0,0);
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for (int i = 0; i < index; i++) {
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if (commandVector[i]->isVisible()) {
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commandVector[i]->execute(&canvas);
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}
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if (prev != bitmap.getColor(0,0)) {
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layer = i;
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}
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prev = bitmap.getColor(0,0);
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}
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return layer;
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}
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void SkDebugCanvas::drawTo(SkCanvas* canvas, int index) {
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int counter = 0;
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SkASSERT(!commandVector.isEmpty());
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SkASSERT(index < commandVector.count());
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int i;
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// This only works assuming the canvas and device are the same ones that
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// were previously drawn into because they need to preserve all saves
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// and restores.
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if (fIndex < index) {
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i = fIndex + 1;
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} else {
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for (int j = 0; j < fOutstandingSaveCount; j++) {
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canvas->restore();
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}
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i = 0;
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canvas->clear(SK_ColorTRANSPARENT);
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canvas->resetMatrix();
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SkRect rect = SkRect::MakeWH(SkIntToScalar(fWidth),
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SkIntToScalar(fHeight));
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canvas->clipRect(rect, SkRegion::kReplace_Op );
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applyUserTransform(canvas);
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fOutstandingSaveCount = 0;
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}
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for (; i <= index; i++) {
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if (i == index && fFilter) {
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SkPaint p;
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p.setColor(0xAAFFFFFF);
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canvas->save();
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canvas->resetMatrix();
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SkRect mask;
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mask.set(SkIntToScalar(0), SkIntToScalar(0),
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SkIntToScalar(fWidth), SkIntToScalar(fHeight));
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canvas->clipRect(mask, SkRegion::kReplace_Op, false);
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canvas->drawRectCoords(SkIntToScalar(0), SkIntToScalar(0),
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SkIntToScalar(fWidth), SkIntToScalar(fHeight), p);
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canvas->restore();
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}
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if (commandVector[i]->isVisible()) {
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commandVector[i]->execute(canvas);
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commandVector[i]->trackSaveState(&fOutstandingSaveCount);
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}
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}
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fMatrix = canvas->getTotalMatrix();
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fClip = canvas->getTotalClip().getBounds();
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fIndex = index;
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}
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SkDrawCommand* SkDebugCanvas::getDrawCommandAt(int index) {
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SkASSERT(index < commandVector.count());
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return commandVector[index];
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}
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SkTDArray<SkString*>* SkDebugCanvas::getCommandInfo(int index) {
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SkASSERT(index < commandVector.count());
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return commandVector[index]->Info();
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}
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bool SkDebugCanvas::getDrawCommandVisibilityAt(int index) {
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SkASSERT(index < commandVector.count());
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return commandVector[index]->isVisible();
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}
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const SkTDArray <SkDrawCommand*>& SkDebugCanvas::getDrawCommands() const {
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return commandVector;
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}
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// TODO(chudy): Free command string memory.
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SkTArray<SkString>* SkDebugCanvas::getDrawCommandsAsStrings() const {
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SkTArray<SkString>* commandString = new SkTArray<SkString>(commandVector.count());
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if (!commandVector.isEmpty()) {
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for (int i = 0; i < commandVector.count(); i ++) {
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commandString->push_back() = commandVector[i]->toString();
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}
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}
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return commandString;
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}
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void SkDebugCanvas::toggleFilter(bool toggle) {
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fFilter = toggle;
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}
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void SkDebugCanvas::clear(SkColor color) {
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addDrawCommand(new Clear(color));
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}
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static SkBitmap createBitmap(const SkPath& path) {
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SkBitmap bitmap;
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bitmap.setConfig(SkBitmap::kARGB_8888_Config,
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SkImageWidget::kImageWidgetWidth,
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SkImageWidget::kImageWidgetHeight);
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bitmap.allocPixels();
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bitmap.eraseColor(SK_ColorWHITE);
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SkDevice* device = new SkDevice(bitmap);
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SkCanvas canvas(device);
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device->unref();
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const SkRect& bounds = path.getBounds();
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if (bounds.width() > bounds.height()) {
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canvas.scale(SkDoubleToScalar((0.9*SkImageWidget::kImageWidgetWidth)/bounds.width()),
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SkDoubleToScalar((0.9*SkImageWidget::kImageWidgetHeight)/bounds.width()));
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} else {
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canvas.scale(SkDoubleToScalar((0.9*SkImageWidget::kImageWidgetWidth)/bounds.height()),
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SkDoubleToScalar((0.9*SkImageWidget::kImageWidgetHeight)/bounds.height()));
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}
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canvas.translate(-bounds.fLeft+2, -bounds.fTop+2);
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SkPaint p;
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p.setColor(SK_ColorBLACK);
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p.setStyle(SkPaint::kStroke_Style);
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canvas.drawPath(path, p);
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return bitmap;
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}
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static SkBitmap createBitmap(const SkBitmap& input, const SkRect* srcRect) {
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SkBitmap bitmap;
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bitmap.setConfig(SkBitmap::kARGB_8888_Config,
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SkImageWidget::kImageWidgetWidth,
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SkImageWidget::kImageWidgetHeight);
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bitmap.allocPixels();
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bitmap.eraseColor(SK_ColorLTGRAY);
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SkDevice* device = new SkDevice(bitmap);
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SkCanvas canvas(device);
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device->unref();
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SkScalar xScale = (SkImageWidget::kImageWidgetWidth-2.0) / input.width();
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SkScalar yScale = (SkImageWidget::kImageWidgetHeight-2.0) / input.height();
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if (input.width() > input.height()) {
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yScale *= input.height() / (float) input.width();
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} else {
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xScale *= input.width() / (float) input.height();
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}
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SkRect dst = SkRect::MakeXYWH(SK_Scalar1, SK_Scalar1,
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xScale * input.width(),
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yScale * input.height());
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canvas.drawBitmapRect(input, NULL, dst);
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if (NULL != srcRect) {
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SkRect r = SkRect::MakeLTRB(srcRect->fLeft * xScale + SK_Scalar1,
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srcRect->fTop * yScale + SK_Scalar1,
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srcRect->fRight * xScale + SK_Scalar1,
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srcRect->fBottom * yScale + SK_Scalar1);
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SkPaint p;
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p.setColor(SK_ColorRED);
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p.setStyle(SkPaint::kStroke_Style);
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canvas.drawRect(r, p);
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}
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return bitmap;
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}
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bool SkDebugCanvas::clipPath(const SkPath& path, SkRegion::Op op, bool doAA) {
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SkBitmap bitmap = createBitmap(path);
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addDrawCommand(new ClipPath(path, op, doAA, bitmap));
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return true;
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}
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bool SkDebugCanvas::clipRect(const SkRect& rect, SkRegion::Op op, bool doAA) {
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addDrawCommand(new ClipRect(rect, op, doAA));
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return true;
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}
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bool SkDebugCanvas::clipRegion(const SkRegion& region, SkRegion::Op op) {
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addDrawCommand(new ClipRegion(region, op));
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return true;
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}
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bool SkDebugCanvas::concat(const SkMatrix& matrix) {
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addDrawCommand(new Concat(matrix));
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return true;
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}
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void SkDebugCanvas::drawBitmap(const SkBitmap& bitmap, SkScalar left,
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SkScalar top, const SkPaint* paint = NULL) {
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SkBitmap resizedBitmap = createBitmap(bitmap, NULL);
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addDrawCommand(new DrawBitmap(bitmap, left, top, paint, resizedBitmap));
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}
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void SkDebugCanvas::drawBitmapRectToRect(const SkBitmap& bitmap,
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const SkRect* src, const SkRect& dst, const SkPaint* paint) {
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SkBitmap resizedBitmap = createBitmap(bitmap, src);
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addDrawCommand(new DrawBitmapRect(bitmap, src, dst, paint, resizedBitmap));
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}
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void SkDebugCanvas::drawBitmapMatrix(const SkBitmap& bitmap,
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const SkMatrix& matrix, const SkPaint* paint) {
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SkBitmap resizedBitmap = createBitmap(bitmap, NULL);
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addDrawCommand(new DrawBitmapMatrix(bitmap, matrix, paint, resizedBitmap));
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}
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void SkDebugCanvas::drawBitmapNine(const SkBitmap& bitmap,
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const SkIRect& center, const SkRect& dst, const SkPaint* paint) {
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SkBitmap resizedBitmap = createBitmap(bitmap, NULL);
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addDrawCommand(new DrawBitmapNine(bitmap, center, dst, paint, resizedBitmap));
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}
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void SkDebugCanvas::drawData(const void* data, size_t length) {
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addDrawCommand(new DrawData(data, length));
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}
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void SkDebugCanvas::drawPaint(const SkPaint& paint) {
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addDrawCommand(new DrawPaint(paint));
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}
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void SkDebugCanvas::drawPath(const SkPath& path, const SkPaint& paint) {
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SkBitmap bitmap = createBitmap(path);
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addDrawCommand(new DrawPath(path, paint, bitmap));
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}
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void SkDebugCanvas::drawPicture(SkPicture& picture) {
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addDrawCommand(new DrawPicture(picture));
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}
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void SkDebugCanvas::drawPoints(PointMode mode, size_t count,
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const SkPoint pts[], const SkPaint& paint) {
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addDrawCommand(new DrawPoints(mode, count, pts, paint));
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}
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void SkDebugCanvas::drawPosText(const void* text, size_t byteLength,
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const SkPoint pos[], const SkPaint& paint) {
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addDrawCommand(new DrawPosText(text, byteLength, pos, paint));
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}
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void SkDebugCanvas::drawPosTextH(const void* text, size_t byteLength,
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const SkScalar xpos[], SkScalar constY, const SkPaint& paint) {
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addDrawCommand(new DrawPosTextH(text, byteLength, xpos, constY, paint));
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}
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void SkDebugCanvas::drawRect(const SkRect& rect, const SkPaint& paint) {
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// NOTE(chudy): Messing up when renamed to DrawRect... Why?
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addDrawCommand(new DrawRectC(rect, paint));
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}
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void SkDebugCanvas::drawSprite(const SkBitmap& bitmap, int left, int top,
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const SkPaint* paint = NULL) {
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SkBitmap resizedBitmap = createBitmap(bitmap, NULL);
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addDrawCommand(new DrawSprite(bitmap, left, top, paint, resizedBitmap));
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}
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void SkDebugCanvas::drawText(const void* text, size_t byteLength, SkScalar x,
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SkScalar y, const SkPaint& paint) {
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addDrawCommand(new DrawTextC(text, byteLength, x, y, paint));
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}
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void SkDebugCanvas::drawTextOnPath(const void* text, size_t byteLength,
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const SkPath& path, const SkMatrix* matrix, const SkPaint& paint) {
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addDrawCommand(new DrawTextOnPath(text, byteLength, path, matrix, paint));
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}
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void SkDebugCanvas::drawVertices(VertexMode vmode, int vertexCount,
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const SkPoint vertices[], const SkPoint texs[], const SkColor colors[],
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SkXfermode*, const uint16_t indices[], int indexCount,
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const SkPaint& paint) {
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addDrawCommand(new DrawVertices(vmode, vertexCount, vertices, texs, colors,
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NULL, indices, indexCount, paint));
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}
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void SkDebugCanvas::restore() {
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addDrawCommand(new Restore());
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}
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bool SkDebugCanvas::rotate(SkScalar degrees) {
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addDrawCommand(new Rotate(degrees));
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return true;
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}
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int SkDebugCanvas::save(SaveFlags flags) {
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addDrawCommand(new Save(flags));
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return true;
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}
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int SkDebugCanvas::saveLayer(const SkRect* bounds, const SkPaint* paint,
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SaveFlags flags) {
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addDrawCommand(new SaveLayer(bounds, paint, flags));
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return true;
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}
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bool SkDebugCanvas::scale(SkScalar sx, SkScalar sy) {
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addDrawCommand(new Scale(sx, sy));
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return true;
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}
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void SkDebugCanvas::setMatrix(const SkMatrix& matrix) {
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addDrawCommand(new SetMatrix(matrix));
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}
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bool SkDebugCanvas::skew(SkScalar sx, SkScalar sy) {
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addDrawCommand(new Skew(sx, sy));
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return true;
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}
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bool SkDebugCanvas::translate(SkScalar dx, SkScalar dy) {
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addDrawCommand(new Translate(dx, dy));
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return true;
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}
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void SkDebugCanvas::toggleCommand(int index, bool toggle) {
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SkASSERT(index < commandVector.count());
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commandVector[index]->setVisible(toggle);
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}
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