Added the model browser

interface/src/ModelBrowser.cpp

@@ -0,0 +1,127 @@
+//
+//  ModelBrowser.cpp
+//  hifi
+//
+//  Created by Clement on 3/17/14.
+//  Copyright (c) 2014 HighFidelity, Inc. All rights reserved.
+//
+
+#include <QUrl>
+#include <QXmlStreamReader>
+#include <QEventLoop>
+#include <QMessageBox>
+#include <QGridLayout>
+#include <QDialog>
+#include <QStringListModel>
+#include <QDialogButtonBox>
+
+#include <Application.h>
+
+#include "ModelBrowser.h"
+
+static const int DOWNLOAD_TIMEOUT = 1000;
+static const QString CONTAINER_NAME = "Contents";
+static const QString KEY_NAME = "Key";
+
+ModelBrowser::ModelBrowser(QWidget* parent) :
+    QWidget(parent),
+    _downloader(QUrl(S3_URL))
+{
+}
+
+QString ModelBrowser::browse(ModelType modelType) {
+    _models.clear();
+    if (!parseXML(modelType)) {
+        return QString();
+    }
+    
+    
+    QDialog dialog(this);
+    dialog.setWindowTitle("Browse models");
+    
+    QGridLayout* layout = new QGridLayout(&dialog);
+    dialog.setLayout(layout);
+    
+    QLineEdit* searchBar = new QLineEdit(&dialog);
+    layout->addWidget(searchBar, 0, 0);
+    
+    ListView* listView = new ListView(&dialog);
+    listView->setEditTriggers(QAbstractItemView::NoEditTriggers);
+    layout->addWidget(listView, 1, 0);
+    listView->connect(searchBar, SIGNAL(textChanged(const QString&)), SLOT(keyboardSearch(const QString&)));
+    dialog.connect(listView, SIGNAL(doubleClicked(const QModelIndex&)), SLOT(accept()));
+    
+    QStringListModel* model = new QStringListModel(_models.keys(), listView);
+    model->sort(0);
+    listView->setModel(model);
+    
+    QDialogButtonBox* buttons = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
+    layout->addWidget(buttons, 2, 0);
+    dialog.connect(buttons, SIGNAL(accepted()), SLOT(accept()));
+    dialog.connect(buttons, SIGNAL(rejected()), SLOT(reject()));
+    
+    if (dialog.exec() == QDialog::Rejected) {
+        return QString();
+    }
+    
+    QString selectedKey = model->data(listView->currentIndex(), Qt::DisplayRole).toString();
+    return _models[selectedKey];
+}
+
+void ModelBrowser::browseHead() {
+    QString model = browse(Head);
+    emit selectedHead(model);
+}
+
+void ModelBrowser::browseSkeleton() {
+    QString model = browse(Skeleton);
+    emit selectedSkeleton(model);
+}
+
+bool ModelBrowser::parseXML(ModelType modelType) {
+    _downloader.waitForFile(DOWNLOAD_TIMEOUT);
+    QString location;
+    switch (modelType) {
+        case Head:
+            location = HEAD_MODELS_LOCATION;
+            break;
+        case Skeleton:
+            location = SKELETON_MODELS_LOCATION;
+            break;
+        default:
+            return false;
+    }
+    
+    QXmlStreamReader xml(_downloader.getData());
+    QRegExp rx(location + "[^/]*fst");
+    
+    // Read xml until the end or an error is detected
+    while(!xml.atEnd() && !xml.hasError()) {
+        if(xml.tokenType() == QXmlStreamReader::StartElement && xml.name() == CONTAINER_NAME) {
+            while(!(xml.tokenType() == QXmlStreamReader::EndElement && xml.name() == CONTAINER_NAME)) {
+                // If a file is find, process it
+                if(xml.tokenType() == QXmlStreamReader::StartElement && xml.name() == KEY_NAME) {
+                    xml.readNext();
+                    if (rx.exactMatch(xml.text().toString())) {
+                        // Add the found file to the list
+                        _models.insert(QFileInfo(xml.text().toString()).baseName(),
+                                       S3_URL + "/" + xml.text().toString());
+                    }
+                }
+                xml.readNext();
+            }
+        }
+        xml.readNext();
+    }
+    
+    // Error handling
+    if(xml.hasError()) {
+        _models.clear();
+        QMessageBox::critical(this,
+                              "ModelBrowser::ModelBrowser()",
+                              xml.errorString(),
+                              QMessageBox::Ok);
+        return false;
+    }
+    return true;
+}

interface/src/ModelBrowser.h

@@ -0,0 +1,59 @@
+//
+//  ModelBrowser.h
+//  hifi
+//
+//  Created by Clement on 3/17/14.
+//  Copyright (c) 2014 HighFidelity, Inc. All rights reserved.
+//
+
+#ifndef __hifi__ModelBrowser__
+#define __hifi__ModelBrowser__
+
+#include <FileDownloader.h>
+
+#include <QDialog>
+#include <QListView>
+
+static const QString S3_URL = "http://highfidelity-public.s3-us-west-1.amazonaws.com";
+static const QString HEAD_MODELS_LOCATION = "meshes/";
+static const QString SKELETON_MODELS_LOCATION = "meshes/";
+
+enum ModelType {
+    Head,
+    Skeleton
+};
+
+class ModelBrowser : public QWidget {
+    Q_OBJECT
+    
+public:
+    ModelBrowser(QWidget* parent = NULL);
+    
+    QString browse(ModelType modelType);
+    
+signals:
+    void selectedHead(QString);
+    void selectedSkeleton(QString);
+    
+public slots:
+    void browseHead();
+    void browseSkeleton();
+    
+private:
+    FileDownloader _downloader;
+    QHash<QString, QString> _models;
+    
+    bool parseXML(ModelType modelType);
+};
+
+class ListView : public QListView {
+    Q_OBJECT
+public:
+    ListView(QWidget* parent) : QListView(parent) {}
+    public slots:
+    void keyboardSearch(const QString& text) {
+        QAbstractItemView::keyboardSearch(text);
+    }
+};
+
+#endif /* defined(__hifi__ModelBrowser__) */