Working on downloading the faces.

interface/src/Menu.cpp

@@ -708,6 +708,10 @@ void Menu::editPreferences() {
     avatarURL->setMinimumWidth(QLINE_MINIMUM_WIDTH);
     form->addRow("Avatar URL:", avatarURL);
     
+    QLineEdit* faceURL = new QLineEdit(applicationInstance->getAvatar()->getHead().getBlendFace().getModelURL().toString());
+    faceURL->setMinimumWidth(QLINE_MINIMUM_WIDTH);
+    form->addRow("Face URL:", faceURL);
+    
     QSpinBox* fieldOfView = new QSpinBox();
     fieldOfView->setMaximum(180);
     fieldOfView->setMinimum(1);
@@ -764,9 +768,12 @@ void Menu::editPreferences() {
         NodeList::getInstance()->setDomainHostname(newHostname.constData());
     }
     
-    QUrl url(avatarURL->text());
-    applicationInstance->getAvatar()->getVoxels()->setVoxelURL(url);
-    Avatar::sendAvatarVoxelURLMessage(url);
+    QUrl avatarVoxelURL(avatarURL->text());
+    applicationInstance->getAvatar()->getVoxels()->setVoxelURL(avatarVoxelURL);
+    Avatar::sendAvatarVoxelURLMessage(avatarVoxelURL);
+    
+    QUrl faceModelURL(faceURL->text());
+    applicationInstance->getAvatar()->getHead().getBlendFace().setModelURL(faceModelURL);
     
     _gyroCameraSensitivity = gyroCameraSensitivity->value();
     

interface/src/avatar/Avatar.cpp

@@ -786,6 +786,7 @@ void Avatar::loadData(QSettings* settings) {
     _position.z = loadSetting(settings, "position_z", 0.0f);
     
     _voxels.setVoxelURL(settings->value("voxelURL").toUrl());
+    _head.getBlendFace().setModelURL(settings->value("faceModelURL").toUrl());
     
     _leanScale = loadSetting(settings, "leanScale", 0.05f);
 
@@ -837,6 +838,7 @@ void Avatar::saveData(QSettings* set) {
     set->setValue("position_z", _position.z);
     
     set->setValue("voxelURL", _voxels.getVoxelURL());
+    set->setValue("faceModelURL", _head.getBlendFace().getModelURL());
     
     set->setValue("leanScale", _leanScale);
     set->setValue("scale", _newScale);

interface/src/avatar/BlendFace.cpp

@@ -6,8 +6,9 @@
 //  Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
 //
 
-#include <numeric>
+#include <QNetworkReply>
 
+#include "Application.h"
 #include "BlendFace.h"
 #include "Head.h"
 
@@ -16,6 +17,7 @@ using namespace std;
 
 BlendFace::BlendFace(Head* owningHead) :
     _owningHead(owningHead),
+    _modelReply(NULL),
     _iboID(0)
 {
 }
@@ -97,6 +99,30 @@ bool BlendFace::render(float alpha) {
     return true;
 }
 
+void BlendFace::setModelURL(const QUrl& url) {
+    // don't restart the download if it's the same URL
+    if (_modelURL == url) {
+        return;
+    }
+
+    // cancel any current download
+    if (_modelReply != 0) {
+        delete _modelReply;
+        _modelReply = 0;
+    }
+    
+    // remember the URL
+    _modelURL = url;
+    
+    // load the URL data asynchronously
+    if (!url.isValid()) {
+        return;
+    }
+    _modelReply = Application::getInstance()->getNetworkAccessManager()->get(QNetworkRequest(url));
+    connect(_modelReply, SIGNAL(downloadProgress(qint64,qint64)), SLOT(handleModelDownloadProgress(qint64,qint64)));
+    connect(_modelReply, SIGNAL(error(QNetworkReply::NetworkError)), SLOT(handleModelReplyError()));
+}
+
 void BlendFace::setRig(const fsMsgRig& rig) {
     if (rig.mesh().m_tris.empty()) {
         // clear any existing geometry
@@ -143,3 +169,25 @@ void BlendFace::setRig(const fsMsgRig& rig) {
         }
     }
 }
+
+void BlendFace::handleModelDownloadProgress(qint64 bytesReceived, qint64 bytesTotal) {
+    if (bytesReceived < bytesTotal) {
+        return;
+    }
+
+    QByteArray entirety = _modelReply->readAll();
+    _modelReply->disconnect(this);
+    _modelReply->deleteLater();
+    _modelReply = 0;
+    
+    qDebug("Got %d bytes.\n", entirety.size());
+}
+
+void BlendFace::handleModelReplyError() {
+    qDebug("%s\n", _modelReply->errorString().toLocal8Bit().constData());
+    
+    _modelReply->disconnect(this);
+    _modelReply->deleteLater();
+    _modelReply = 0;
+}
+

interface/src/avatar/BlendFace.h

@@ -10,11 +10,14 @@
 #define __interface__BlendFace__
 
 #include <QObject>
+#include <QUrl>
 
 #include <fsbinarystream.h>
 
 #include "InterfaceConfig.h"
 
+class QNetworkReply;
+
 class Head;
 
 /// A face formed from a linear mix of blendshapes according to a set of coefficients.
@@ -28,14 +31,26 @@ public:
     
     bool render(float alpha);
     
+    Q_INVOKABLE void setModelURL(const QUrl& url);
+    const QUrl& getModelURL() const { return _modelURL; }
+    
 public slots:
     
     void setRig(const fs::fsMsgRig& rig);
+
+private slots:
+    
+    void handleModelDownloadProgress(qint64 bytesReceived, qint64 bytesTotal);
+    void handleModelReplyError();
     
 private:
     
     Head* _owningHead;
     
+    QUrl _modelURL;
+    
+    QNetworkReply* _modelReply;
+
     GLuint _iboID;
     GLuint _vboID;