//********************************** Banshee Engine (www.banshee3d.com) **************************************************//
//**************** Copyright (c) 2016 Marko Pintera (marko.pintera@gmail.com). All rights reserved. **********************//
#pragma once

#include "BsEditorPrerequisites.h"
#include "GUI/BsGUIElementContainer.h"

namespace bs
{
	/** @addtogroup GUI-Editor-Internal
	 *  @{
	 */

	/** Editor window status bar that displays log messages and various other information. */
	class BS_ED_EXPORT GUIStatusBar : public GUIElementContainer
	{
		struct PrivatelyConstruct {};

	public:
		/** Returns type name of the GUI element used for finding GUI element styles. */
		static const String& getGUITypeName();

		/** Returns type name of the internal background GUI element. */
		static const String& getGUIBackgroundTypeName();

		/** Returns type name of the internal message button GUI element. */
		static const String& getGUIMessageTypeName();

		/**
		 * Creates a new GUI status bar.
		 *
		 * @param[in]	options			Options that allow you to control how is the element positioned and sized.
		 *								This will override any similar options set by style.
		 * @param[in]	style			Optional style to use for the element. Style will be retrieved from GUISkin of the
		 *								GUIWidget the element is used on. If not specified default style is used.
		 */
		static GUIStatusBar* create(const GUIOptions& options, const String& style = StringUtil::BLANK);

		/**
		 * Creates a new GUI status bar.
		 *
		 * @param[in]	style			Optional style to use for the element. Style will be retrieved from GUISkin of the
		 *								GUIWidget the element is used on. If not specified default style is used.
		 */
		static GUIStatusBar* create(const String& style = StringUtil::BLANK);

		GUIStatusBar(const PrivatelyConstruct& dummy, const String& style, const GUIDimensions& dimensions);

		/**
		 * Updates the active project displayed on the status bar.
		 * 	
		 * @param[in]	name		Name of the project.
		 * @param[in]	modified	Should the project be displayed as modified (and needs saving).
		 */
		void setProject(const String& name, bool modified);

		/**
		 * Updates the active scene displayed on the status bar.
		 * 	
		 * @param[in]	name		Name of the scene.
		 * @param[in]	modified	Should the scene be displayed as modified (and needs saving).
		 */
		void setScene(const String& name, bool modified);

		/**	Activates or deactivates the "compilation in progress" visuals on the status bar. */
		void setIsCompiling(bool compiling);

		/** 
		 * Activates or deactives the "import in progress" visuals on the status bar, as well as updates the related 
		 * progress bar to the specified percentage (if active).
		 */
		void setIsImporting(bool importing, float percentage);

		/** @copydoc GUIElement::setTint */
		void setTint(const Color& color) override;

		/** @copydoc GUIElement::_updateLayoutInternal */
		void _updateLayoutInternal(const GUILayoutData& data) override;

		/** @copydoc GUIElement::_getOptimalSize */
		Vector2I _getOptimalSize() const override;

		Event<void()> onMessageClicked; /**< Triggered when the user clicks on the console message. */
	private:
		virtual ~GUIStatusBar();

		/** @copydoc GUIElement::styleUpdated */
		void styleUpdated() override;

		/**	Triggered when the debug Log was modified. */
		void logModified();

		/**	Triggered when the user clicks on the message display. */
		void messageBtnClicked();

	private:
		static const Color COLOR_INFO;
		static const Color COLOR_WARNING;
		static const Color COLOR_ERROR;

		GUIPanel* mPanel;
		GUIPanel* mBgPanel;
		GUIButton* mMessage;
		GUILabel* mScene;
		GUILabel* mProject;

		GUIFixedSpace* mCompilingSpace;
		GUILabel* mCompiling;

		GUILayout* mImportLayout;
		GUIFixedSpace* mImportSpace;
		GUILabel* mImporting;
		GUIProgressBar* mImportProgressBar;
		GUITexture* mBackground;

		HEvent mLogEntryAddedConn;
		HEvent mMessageBtnPressedConn;
	};

	/** @} */
}