Add feature to save screenshot. Try Right-Alt + PrintScreen

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@11452 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/graphics/irr_driver.cpp

@@ -84,6 +84,7 @@ IrrDriver::IrrDriver()
 {
     m_resolution_changing = RES_CHANGE_NONE;
     m_device              = createDevice(video::EDT_NULL);
+    m_request_screenshot  = false;
 }   // IrrDriver
 
 // ----------------------------------------------------------------------------
@@ -1601,6 +1602,42 @@ void IrrDriver::update(float dt)
     
     m_video_driver->endScene();
     
+    
+    if (m_request_screenshot)
+    {
+        m_request_screenshot = false;
+        
+        video::IImage* image = m_video_driver->createScreenShot();
+        if (image)
+        {
+            static int screenshot_id = 1;
+            
+            #if defined(WIN32)
+            std::string path = StringUtils::insertValues("C:\\Temp\\supertuxkart_%s_%i.png", race_manager->getTrackName().c_str(), screenshot_id++);
+            #else
+            std::string path = StringUtils::insertValues("/tmp/supertuxkart_%s_%i.png", race_manager->getTrackName().c_str(), screenshot_id++);
+            #endif
+            
+            if (irr_driver->getVideoDriver()->writeImageToFile(image, io::path(path.c_str()), 0))
+            {
+                RaceGUIBase* base = World::getWorld()->getRaceGUI();
+                if (base != NULL)
+                {
+                    base->addMessage(core::stringw(("Screenshot saved to\n" + path).c_str()), NULL, 2.0f, video::SColor(255,255,255,255), true, false);
+                }
+            }
+            else
+            {
+                RaceGUIBase* base = World::getWorld()->getRaceGUI();
+                if (base != NULL)
+                {
+                    base->addMessage(core::stringw(("FAILED saving screenshot to\n" + path + "\n:(").c_str()), NULL, 2.0f, video::SColor(255,255,255,255), true, false);
+                }
+            }
+            image->drop();
+        }
+    }
+    
     getPostProcessing()->update(dt);
     
     // Enable this next print statement to get render information printed
@@ -1612,6 +1649,13 @@ void IrrDriver::update(float dt)
     //    printRenderStats();
 }   // update
 
+// ----------------------------------------------------------------------------
+
+void IrrDriver::requestScreenshot()
+{
+    m_request_screenshot = true;
+}
+
 // ----------------------------------------------------------------------------
 // Irrlicht Event handler.
 bool IrrDriver::OnEvent(const irr::SEvent &event)

src/graphics/irr_driver.hpp

@@ -107,6 +107,7 @@ private:
     void                 applyResolutionSettings();
     void                 createListOfVideoModes();
 
+    bool                 m_request_screenshot;
     
 public:
                           IrrDriver();
@@ -214,6 +215,8 @@ public:
     
     bool supportsSplatting();
     
+    void requestScreenshot();
+    
     // --------------------- RTT --------------------
     /**
       * Class that provides RTT (currently, only when no other 3D rendering 

src/input/input_manager.cpp

@@ -156,8 +156,16 @@ void InputManager::handleStaticAction(int key, int value)
             kart->flyDown();
             break;
         }
+        case KEY_PRINT:
+            irr_driver->requestScreenshot();
+            break;
+            
         case KEY_F1:
-            if (UserConfigParams::m_artist_debug_mode && world)
+            if (control_is_pressed)
+            {
+                irr_driver->requestScreenshot();
+            }
+            else if (UserConfigParams::m_artist_debug_mode && world)
             {
                 AbstractKart* kart = world->getLocalPlayerKart(0);
                 kart->setPowerup(PowerupManager::POWERUP_BUBBLEGUM, 10000);