Volume rendering compatible with abuffer and framebuffer renderers

src/rendering/raycastermanager.cpp

@@ -0,0 +1,83 @@
+/*****************************************************************************************
+ *                                                                                       *
+ * OpenSpace                                                                             *
+ *                                                                                       *
+ * Copyright (c) 2014-2016                                                               *
+ *                                                                                       *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this  *
+ * software and associated documentation files (the "Software"), to deal in the Software *
+ * without restriction, including without limitation the rights to use, copy, modify,    *
+ * merge, publish, distribute, sublicense, and/or sell copies of the Software, and to    *
+ * permit persons to whom the Software is furnished to do so, subject to the following   *
+ * conditions:                                                                           *
+ *                                                                                       *
+ * The above copyright notice and this permission notice shall be included in all copies *
+ * or substantial portions of the Software.                                              *
+ *                                                                                       *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,   *
+ * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A         *
+ * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT    *
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF  *
+ * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE  *
+ * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                                         *
+ ****************************************************************************************/
+
+#include <openspace/rendering/raycastermanager.h>
+#include <openspace/rendering/raycasterlistener.h>
+#include <algorithm>
+
+namespace {
+	const std::string _loggerCat = "RaycasterManager";
+}
+
+namespace openspace {
+
+RaycasterManager::RaycasterManager() {}
+
+RaycasterManager::~RaycasterManager() {}
+
+void RaycasterManager::attachRaycaster(VolumeRaycaster* raycaster) {
+    if (!isAttached(raycaster)) {
+        _raycasters.push_back(raycaster);
+    }
+    for (auto &listener : _listeners) {
+        listener->raycastersChanged(raycaster, true);
+    }
+}
+
+bool RaycasterManager::isAttached(VolumeRaycaster* raycaster) {
+    auto it = std::find(_raycasters.begin(), _raycasters.end(), raycaster);
+    return it != _raycasters.end();
+}
+
+
+void RaycasterManager::detachRaycaster(VolumeRaycaster* raycaster) {
+    auto it = std::find(_raycasters.begin(), _raycasters.end(), raycaster);
+    if (it != _raycasters.end()) {
+        _raycasters.erase(it);
+        for (auto &listener : _listeners) {
+            listener->raycastersChanged(raycaster, false);
+        }
+    }
+}
+
+
+void RaycasterManager::addListener(RaycasterListener* listener) {
+    auto it = std::find(_listeners.begin(), _listeners.end(), listener);
+    if (it == _listeners.end()) {
+        _listeners.push_back(listener);
+    }
+}
+
+void RaycasterManager::removeListener(RaycasterListener* listener) {
+    auto it = std::find(_listeners.begin(), _listeners.end(), listener);
+    if (it != _listeners.end()) {
+        _listeners.erase(it);
+    }
+}
+
+const std::vector<VolumeRaycaster*>& RaycasterManager::raycasters() {
+    return _raycasters;
+}
+
+}