aboutsummaryrefslogtreecommitdiffhomepage
path: root/experimental/DrawingBoard/SampleDrawingClient.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'experimental/DrawingBoard/SampleDrawingClient.cpp')
-rw-r--r--experimental/DrawingBoard/SampleDrawingClient.cpp278
1 files changed, 0 insertions, 278 deletions
diff --git a/experimental/DrawingBoard/SampleDrawingClient.cpp b/experimental/DrawingBoard/SampleDrawingClient.cpp
deleted file mode 100644
index 542c589030..0000000000
--- a/experimental/DrawingBoard/SampleDrawingClient.cpp
+++ /dev/null
@@ -1,278 +0,0 @@
-#include "SampleCode.h"
-#include "SkView.h"
-#include "SkCanvas.h"
-#include "SkGPipe.h"
-#include "SkSockets.h"
-#include "SkNetPipeController.h"
-#include "SkCornerPathEffect.h"
-#include "SkColorPalette.h"
-#include "SkOSMenu.h"
-
-
-/**
- * Drawing Client
- *
- * A drawing client that allows a user to perform simple brush stokes with
- * a selected color and brush size. The drawing client communicates with a
- * drawing server to send/receive data to/from other clients connected to the
- * same server. The drawing client stores data in fData and fBuffer depending on
- * the data type. Append type means that the drawing data is a completed stroke
- * and Replace type means that the drawing data is in progress and will be
- * replaced by subsequent data. fData and fBuffer are read by a pipe reader and
- * reproduce the drawing. When the client is in a normal state, the data stored
- * on the client and the server should be identical.
- * The drawing client is also able to switch between vector and bitmap drawing.
- * The drawing client also renders the latest drawing stroke locally in order to
- * produce better reponses. This can be disabled by calling
- * controller.disablePlayBack(), which will introduce a lag between the input
- * and the drawing.
- * Note: in order to keep up with the drawing data, the client will try to read
- * a few times each frame in case more than one frame worth of data has been
- * received and render them together. This behavior can be adjusted by tweaking
- * MAX_READ_PER_FRAME or disabled by turning fSync to false
- */
-
-#define MAX_READ_PER_FRAME 5
-
-class DrawingClientView : public SampleView {
-public:
- DrawingClientView() {
- fSocket = NULL;
- fTotalBytesRead = 0;
- fPalette = new SkColorPalette;
- fPalette->setSize(100, 300);
- fPalette->setVisibleP(true);
- this->attachChildToFront(fPalette);
- fPalette->unref();
- fBrushSize = 2.5;
- fAA = false;
- fPaletteVisible = true;
- fSync = true;
- fVector = true;
- }
- ~DrawingClientView() {
- if (fSocket) {
- delete fSocket;
- }
- fData.reset();
- fBuffer.reset();
- }
-
- virtual void requestMenu(SkOSMenu* menu) {
- menu->setTitle("Drawing Client");
- menu->appendTextField("Server IP", "Server IP", this->getSinkID(),
- "IP address or hostname");
- menu->appendSwitch("Vector", "Vector", this->getSinkID(), fVector);
- menu->appendSlider("Brush Size", "Brush Size", this->getSinkID(), 1.0,
- 100.0, fBrushSize);
- menu->appendSwitch("Anti-Aliasing", "AA", this->getSinkID(), fAA);
- menu->appendSwitch("Show Color Palette", "Palette", this->getSinkID(),
- fPaletteVisible);
- menu->appendSwitch("Sync", "Sync", this->getSinkID(), fSync);
- menu->appendAction("Clear", this->getSinkID());
- }
-
-protected:
-
- static void readData(int cid, const void* data, size_t size,
- SkSocket::DataType type, void* context) {
- DrawingClientView* view = (DrawingClientView*)context;
- view->onRead(cid, data, size, type);
- }
-
- void onRead(int cid, const void* data, size_t size, SkSocket::DataType type) {
- if (size > 0) {
- fBuffer.reset();
- if (type == SkSocket::kPipeReplace_type)
- fBuffer.append(size, (const char*)data);
- else if (type == SkSocket::kPipeAppend_type)
- fData.append(size, (const char*)data);
- else {
- //other types of data
- }
- }
- }
-
- bool onQuery(SkEvent* evt) {
- if (SampleCode::TitleQ(*evt)) {
- SampleCode::TitleR(evt, "Drawing Client");
- return true;
- }
-
- return this->INHERITED::onQuery(evt);
- }
-
- bool onEvent(const SkEvent& evt) {;
- if (SkOSMenu::FindSliderValue(evt, "Brush Size", &fBrushSize))
- return true;
-
- SkString s;
- if (SkOSMenu::FindText(evt, "Server IP", &s)) {
- if (NULL != fSocket) {
- delete fSocket;
- }
- fSocket = new SkTCPClient(s.c_str(), 40000);
- fSocket->connectToServer();
- fSocket->suspendWrite();
- SkDebugf("Connecting to %s\n", s.c_str());
- fData.reset();
- fBuffer.reset();
- this->inval(NULL);
- return true;
- }
- if (SkOSMenu::FindSwitchState(evt, "AA", &fAA) ||
- SkOSMenu::FindSwitchState(evt, "Sync", &fSync))
- return true;
- if (SkOSMenu::FindSwitchState(evt, "Vector", &fVector)) {
- this->clearBitmap();
- return true;
- }
- if (SkOSMenu::FindAction(evt, "Clear")) {
- this->clear();
- return true;
- }
- if (SkOSMenu::FindSwitchState(evt, "Palette", &fPaletteVisible)) {
- fPalette->setVisibleP(fPaletteVisible);
- return true;
- }
- return this->INHERITED::onEvent(evt);
- }
-
- virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) {
- return new Click(this);
- }
-
- virtual bool onClick(SkView::Click* click) {
- switch (click->fState) {
- case SkView::Click::kDown_State:
- fCurrLine.moveTo(click->fCurr);
- fType = SkSocket::kPipeReplace_type;
- if (fSocket)
- fSocket->resumeWrite();
- break;
- case SkView::Click::kMoved_State:
- fCurrLine.lineTo(click->fCurr);
- break;
- case SkView::Click::kUp_State:
- fType = SkSocket::kPipeAppend_type;
- break;
- default:
- break;
- }
- return true;
- }
-
- virtual void onDrawContent(SkCanvas* canvas) {
- if (fSocket) {
- if (fSocket->isConnected()) {
- if (fSync) {
- int count = 0;
- while (fSocket->readPacket(readData, this) > 0 &&
- count < MAX_READ_PER_FRAME)
- ++count;
- }
- else
- fSocket->readPacket(readData, this);
- }
- else
- fSocket->connectToServer();
- }
- size_t bytesRead = 0;
- SkGPipeReader::Status status;
- SkCanvas bufferCanvas(fBase);
- SkCanvas* tempCanvas;
- while (fTotalBytesRead < fData.count()) {
- if (fVector)
- tempCanvas = canvas;
- else
- tempCanvas = &bufferCanvas;
- SkGPipeReader reader(tempCanvas);
- status = reader.playback(fData.begin() + fTotalBytesRead,
- fData.count() - fTotalBytesRead,
- &bytesRead);
- SkASSERT(SkGPipeReader::kError_Status != status);
- fTotalBytesRead += bytesRead;
- }
- if (fVector)
- fTotalBytesRead = 0;
- else
- canvas->drawBitmap(fBase, 0, 0, NULL);
-
- size_t totalBytesRead = 0;
- while (totalBytesRead < fBuffer.count()) {
- SkGPipeReader reader(canvas);
- status = reader.playback(fBuffer.begin() + totalBytesRead,
- fBuffer.count() - totalBytesRead,
- &bytesRead);
- SkASSERT(SkGPipeReader::kError_Status != status);
- totalBytesRead += bytesRead;
- }
-
- SkNetPipeController controller(canvas);
- SkGPipeWriter writer;
- SkCanvas* writerCanvas = writer.startRecording(&controller,
- SkGPipeWriter::kCrossProcess_Flag);
-
- //controller.disablePlayback();
- SkPaint p;
- p.setColor(fPalette->getColor());
- p.setStyle(SkPaint::kStroke_Style);
- p.setStrokeWidth(fBrushSize);
- p.setStrokeCap(SkPaint::kRound_Cap);
- p.setStrokeJoin(SkPaint::kRound_Join);
- p.setAntiAlias(fAA);
- p.setPathEffect(new SkCornerPathEffect(55))->unref();
- writerCanvas->drawPath(fCurrLine, p);
- writer.endRecording();
-
- controller.writeToSocket(fSocket, fType);
- if (fType == SkSocket::kPipeAppend_type && fSocket) {
- fSocket->suspendWrite();
- fCurrLine.reset();
- }
-
- this->inval(NULL);
- }
-
- virtual void onSizeChange() {
- this->INHERITED::onSizeChange();
- fPalette->setLoc(this->width()-100, 0);
- fBase.setConfig(SkBitmap::kARGB_8888_Config, this->width(), this->height());
- fBase.allocPixels(NULL);
- this->clearBitmap();
- }
-
-private:
- void clear() {
- fData.reset();
- fBuffer.reset();
- fCurrLine.reset();
- fTotalBytesRead = 0;
- this->clearBitmap();
- }
- void clearBitmap() {
- fTotalBytesRead = 0;
- fBase.eraseColor(fBGColor);
- }
- SkTDArray<char> fData;
- SkTDArray<char> fBuffer;
- SkBitmap fBase;
- SkPath fCurrLine;
- SkTCPClient* fSocket;
- SkSocket::DataType fType;
- SkColorPalette* fPalette;
- bool fPaletteVisible;
- size_t fTotalBytesRead;
- SkScalar fBrushSize;
- bool fAA;
- bool fSync;
- bool fVector;
-
- typedef SampleView INHERITED;
-};
-
-
-///////////////////////////////////////////////////////////////////////////////
-
-static SkView* MyFactory() { return new DrawingClientView; }
-static SkViewRegister reg(MyFactory);
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-29 15:02:35 +0000