add clear style for ConsoleScene

Author: jube

include/gf2/core/ConsoleScene.h

@@ -4,6 +4,7 @@
 #define GF_CONSOLE_SCENE_H
 
 #include "ConsoleElementContainer.h"
+#include "ConsoleStyle.h"
 #include "CoreApi.h"
 #include "SceneTypes.h"
 
@@ -32,6 +33,9 @@ namespace gf {
     void show();
     bool hidden() const;
 
+    void set_clear_style(const ConsoleStyle& style);
+    const ConsoleStyle& clear_style() const;
+
     void add_element(ConsoleElement* element);
 
     virtual void process_event(const Event& event);
@@ -48,6 +52,7 @@ namespace gf {
     SceneStatus m_status = SceneStatus::Resumed;
     SceneVisibility m_visibility = SceneVisibility::Shown;
 
+    ConsoleStyle m_clear_style;
     ConsoleElementContainer m_elements;
   };
 

library/core/ConsoleScene.cc

@@ -47,6 +47,16 @@ namespace gf {
     return m_visibility == SceneVisibility::Hidden;
   }
 
+  void ConsoleScene::set_clear_style(const ConsoleStyle& style)
+  {
+    m_clear_style = style;
+  }
+
+  const ConsoleStyle& ConsoleScene::clear_style() const
+  {
+    return m_clear_style;
+  }
+
   void ConsoleScene::add_element(ConsoleElement* element)
   {
     m_elements.add_element(element);

library/core/ConsoleSceneManager.cc

@@ -77,6 +77,12 @@ namespace gf {
 
   void ConsoleSceneManager::render()
   {
+    if (m_scenes.empty()) {
+      return;
+    }
+
+    m_console.clear(m_scenes.back()->clear_style());
+
     for (ConsoleScene* scene : m_scenes) {
       if (!scene->hidden()) {
         scene->render(m_console);