Support animated main menus (menu_background.bik)

Closes #1362

apps/openmw/engine.cpp

@@ -137,6 +137,7 @@ bool OMW::Engine::frameRenderingQueued (const Ogre::FrameEvent& evt)
         }
 
         // update GUI
+        MWBase::Environment::get().getWindowManager()->onFrame(frametime);
         if (MWBase::Environment::get().getStateManager()->getState()!=
             MWBase::StateManager::State_NoGame)
         {
@@ -145,7 +146,6 @@ bool OMW::Engine::frameRenderingQueued (const Ogre::FrameEvent& evt)
             MWBase::Environment::get().getWorld()->getTriangleBatchCount(tri, batch);
             MWBase::Environment::get().getWindowManager()->wmUpdateFps(window->getLastFPS(), tri, batch);
 
-            MWBase::Environment::get().getWindowManager()->onFrame(frametime);
             MWBase::Environment::get().getWindowManager()->update();
         }
     }

apps/openmw/mwgui/mainmenu.cpp

@@ -1,5 +1,7 @@
 #include "mainmenu.hpp"
 
+#include <OgreResourceGroupManager.h>
+
 #include <components/version/version.hpp>
 
 #include "../mwbase/environment.hpp"
@@ -16,6 +18,7 @@
 #include "confirmationdialog.hpp"
 #include "imagebutton.hpp"
 #include "backgroundimage.hpp"
+#include "videowidget.hpp"
 
 namespace MWGui
 {
@@ -25,6 +28,7 @@ namespace MWGui
         , mButtonBox(0), mWidth (w), mHeight (h)
         , mSaveGameDialog(NULL)
         , mBackground(NULL)
+        , mVideo(NULL)
     {
         getWidget(mVersionText, "VersionText");
         std::stringstream sstream;
@@ -42,6 +46,8 @@ namespace MWGui
         std::string output = sstream.str();
         mVersionText->setCaption(output);
 
+        mHasAnimatedMenu = (Ogre::ResourceGroupManager::getSingleton().resourceExistsInAnyGroup("video\\menu_background.bik"));
+
         updateMenu();
     }
 
@@ -134,14 +140,66 @@ namespace MWGui
 
     void MainMenu::showBackground(bool show)
     {
-        if (show && !mBackground)
+        if (mVideo && !show)
+        {
+            MyGUI::Gui::getInstance().destroyWidget(mVideo);
+            mVideo = NULL;
+        }
+        if (mBackground && !show)
+        {
+            MyGUI::Gui::getInstance().destroyWidget(mBackground);
+            mBackground = NULL;
+        }
+
+        if (!show)
+            return;
+
+        if (mHasAnimatedMenu)
+        {
+            if (!mVideo)
+            {
+                // Use black background to correct aspect ratio
+                mVideoBackground = MyGUI::Gui::getInstance().createWidgetReal<MyGUI::ImageBox>("ImageBox", 0,0,1,1,
+                    MyGUI::Align::Default, "Menu");
+                mVideoBackground->setImageTexture("black.png");
+
+                mVideo = mVideoBackground->createWidget<VideoWidget>("ImageBox", 0,0,1,1,
+                    MyGUI::Align::Stretch, "Menu");
+
+                mVideo->playVideo("video\\menu_background.bik", false);
+            }
+
+            MyGUI::IntSize viewSize = MyGUI::RenderManager::getInstance().getViewSize();
+            int screenWidth = viewSize.width;
+            int screenHeight = viewSize.height;
+            mVideoBackground->setSize(screenWidth, screenHeight);
+
+            double imageaspect = static_cast<double>(mVideo->getVideoWidth())/mVideo->getVideoHeight();
+
+            int leftPadding = std::max(0.0, (screenWidth - screenHeight * imageaspect) / 2);
+            int topPadding = std::max(0.0, (screenHeight - screenWidth / imageaspect) / 2);
+
+            mVideo->setCoord(leftPadding, topPadding,
+                                   screenWidth - leftPadding*2, screenHeight - topPadding*2);
+
+            mVideo->setVisible(true);
+        }
+        else
+        {
+            if (!mBackground)
             {
                 mBackground = MyGUI::Gui::getInstance().createWidgetReal<BackgroundImage>("ImageBox", 0,0,1,1,
                     MyGUI::Align::Stretch, "Menu");
                 mBackground->setBackgroundImage("textures\\menu_morrowind.dds");
             }
-        if (mBackground)
+            mBackground->setVisible(true);
-            mBackground->setVisible(show);
+        }
+    }
+
+    void MainMenu::update(float dt)
+    {
+        if (mVideo)
+            mVideo->update();
     }
 
     void MainMenu::updateMenu()

apps/openmw/mwgui/mainmenu.hpp

@@ -9,12 +9,15 @@ namespace MWGui
     class ImageButton;
     class BackgroundImage;
     class SaveGameDialog;
+    class VideoWidget;
 
     class MainMenu : public OEngine::GUI::Layout
     {
             int mWidth;
             int mHeight;
 
+            bool mHasAnimatedMenu;
+
         public:
 
             MainMenu(int w, int h);
@@ -24,6 +27,8 @@ namespace MWGui
 
             virtual void setVisible (bool visible);
 
+            void update(float dt);
+
         private:
 
             MyGUI::Widget* mButtonBox;
@@ -31,6 +36,9 @@ namespace MWGui
 
             BackgroundImage* mBackground;
 
+            MyGUI::ImageBox* mVideoBackground;
+            VideoWidget* mVideo; // For animated main menus
+
             std::map<std::string, MWGui::ImageButton*> mButtons;
 
             void onButtonClicked (MyGUI::Widget* sender);

apps/openmw/mwgui/windowmanagerimp.cpp

@@ -713,6 +713,8 @@ namespace MWGui
 
         mToolTips->onFrame(frameDuration);
 
+        mMenu->update(frameDuration);
+
         if (MWBase::Environment::get().getStateManager()->getState()==
             MWBase::StateManager::State_NoGame)
             return;