mirror of
https://github.com/scratchfoundation/bgfx.git
synced 2024-11-28 18:45:54 -05:00
317 lines
8.7 KiB
C++
317 lines
8.7 KiB
C++
/*
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* Copyright 2011-2015 Branimir Karadzic. All rights reserved.
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* License: http://www.opensource.org/licenses/BSD-2-Clause
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*/
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/*
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* Based on ImWindow code from:
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* https://github.com/thennequin/ImWindow
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*
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* MIT license:
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* https://github.com/thennequin/ImWindow/blob/master/LICENSE
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*/
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#ifndef IMGUI_WM_H_HEADER_GUARD
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#define IMGUI_WM_H_HEADER_GUARD
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#include "imgui.h"
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typedef unsigned int ImU32;
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#ifndef ImwList
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# include <list>
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# define ImwList std::list
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#endif // ImList
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#ifndef ImwMap
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# include <unordered_map>
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# define ImwMap std::unordered_map
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#endif // ImMap
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namespace ImGuiWM
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{
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enum EDockOrientation
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{
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E_DOCK_ORIENTATION_CENTER,
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E_DOCK_ORIENTATION_TOP,
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E_DOCK_ORIENTATION_LEFT,
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E_DOCK_ORIENTATION_RIGHT,
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E_DOCK_ORIENTATION_BOTTOM,
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};
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class Id
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{
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public:
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Id();
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ImU32 GetId() const;
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const char* GetStr() const;
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private:
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ImU32 m_iId;
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char m_pId[11];
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static int s_iNextId;
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};
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class Window
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{
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friend class WindowManager;
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friend class Container;
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public:
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virtual void OnGui() = 0;
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virtual void OnMenu() {};
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const char* GetId() const { return m_oId.GetStr(); }
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void Destroy();
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void SetTitle(const char* pTitle);
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const char* GetTitle() const;
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const ImVec2& GetLastPosition() const;
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const ImVec2& GetLastSize() const;
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protected:
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Window();
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virtual ~Window();
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char* m_pTitle;
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Id m_oId;
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ImVec2 m_oLastPosition;
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ImVec2 m_oLastSize;
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};
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typedef ImwList<Window*> WindowList;
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class PlatformWindow;
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class Container
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{
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friend class PlatformWindow;
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public:
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void Dock(Window* pWindow,EDockOrientation eOrientation = E_DOCK_ORIENTATION_CENTER);
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bool UnDock(Window* pWindow);
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bool IsEmpty();
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bool IsSplit();
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bool HasWindowTabbed();
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Container* HasWindow(const Window* pWindow);
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PlatformWindow* GetPlatformWindowParent() const;
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Container* GetBestDocking(const ImVec2 oCursorPosInContainer,EDockOrientation& oOutOrientation,ImVec2& oOutAreaPos,ImVec2& oOutAreaSize);
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protected:
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Container(Container* pParent);
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Container(PlatformWindow* pParent);
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~Container();
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void CreateSplits();
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void Paint();
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Container* m_pParent;
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PlatformWindow* m_pParentWindow;
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WindowList m_lWindows;
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Container* m_pSplits[2];
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float m_fSplitRatio;
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bool m_bVerticalSplit;
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int m_iActiveWindow;
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bool m_bIsDrag;
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ImVec2 m_oLastPosition;
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ImVec2 m_oLastSize;
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};
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class PlatformWindow
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{
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friend class WindowManager;
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public:
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PlatformWindow(bool bMainWindow,bool bIsDragWindow);
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virtual ~PlatformWindow();
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virtual bool Init(PlatformWindow* pParent) = 0;
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virtual const ImVec2& GetPosition() const = 0;
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virtual const ImVec2& GetSize() const = 0;
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virtual void Show() = 0;
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virtual void Hide() = 0;
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virtual void SetSize(const ImVec2& size) = 0;
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virtual void SetPosition(const ImVec2& pos) = 0;
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virtual void SetTitle(const char* pTitle) = 0;
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bool IsMain();
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void Dock(Window* pWindow);
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bool UnDock(Window* pWindow);
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Container* GetContainer();
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Container* HasWindow(Window* pWindow);
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bool IsStateSet();
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protected:
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void SetState();
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void RestoreState();
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void OnLoseFocus();
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virtual void PreUpdate() = 0;
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virtual void Paint();
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virtual void Destroy() = 0;
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virtual void StartDrag() = 0;
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virtual void StopDrag() = 0;
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virtual bool IsDraging() = 0;
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void PaintContainer();
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void OnClose();
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Id m_oId;
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bool m_bMain;
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bool m_bIsDragWindow;
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Container* m_pContainer;
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void* m_pState;
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void* m_pPreviousState;
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};
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typedef ImwList<PlatformWindow*> PlatformWindowList;
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class WindowManager
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{
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friend class Window;
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friend class PlatformWindow;
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friend class Container;
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enum EPlatformWindowAction
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{
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E_PLATFORM_WINDOW_ACTION_DESTOY = 1,
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E_PLATFORM_WINDOW_ACTION_SHOW = 2,
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E_PLATFORM_WINDOW_ACTION_HIDE = 4,
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E_PLATFORM_WINDOW_ACTION_SET_POSITION = 8,
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E_PLATFORM_WINDOW_ACTION_SET_SIZE = 16,
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};
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struct PlatformWindowAction
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{
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PlatformWindow* m_pPlatformWindow;
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unsigned int m_iFlags;
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ImVec2 m_oPosition;
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ImVec2 m_oSize;
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};
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struct DockAction
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{
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Window* m_pWindow;
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// Is Dock or Float
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bool m_bFloat;
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//For Docking
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Window* m_pWith;
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EDockOrientation m_eOrientation;
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PlatformWindow* m_pToPlatformWindow;
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Container* m_pToContainer;
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//For Floating
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ImVec2 m_oPosition;
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ImVec2 m_oSize;
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};
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struct DrawWindowAreaAction
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{
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DrawWindowAreaAction(PlatformWindow* pWindow,const ImVec2& oRectPos,const ImVec2& oRectSize,const ImColor& oColor);
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PlatformWindow* m_pWindow;
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ImVec2 m_oRectPos;
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ImVec2 m_oRectSize;
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ImColor m_oColor;
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};
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public:
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struct Config
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{
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Config();
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float m_fDragMarginRatio;
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float m_fDragMarginSizeRatio;
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ImColor m_oHightlightAreaColor;
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};
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WindowManager();
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virtual ~WindowManager();
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bool Init();
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bool Run();
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void Exit();
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PlatformWindow* GetMainPlatformWindow();
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Config& GetConfig();
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void SetMainTitle(const char* pTitle);
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void Dock(Window* pWindow, EDockOrientation eOrientation = E_DOCK_ORIENTATION_CENTER, PlatformWindow* pToPlatformWindow = NULL);
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void DockTo(Window* pWindow, EDockOrientation eOrientation = E_DOCK_ORIENTATION_CENTER, Container* pContainer = NULL);
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void DockWith(Window* pWindow, Window* pWithWindow,EDockOrientation eOrientation = E_DOCK_ORIENTATION_CENTER);
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void Float(Window* pWindow, const ImVec2& oPosition = ImVec2(-1,-1), const ImVec2& oSize = ImVec2(-1,-1));
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const WindowList& GetWindowList() const;
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PlatformWindow* GetCurrentPlatformWindow();
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PlatformWindow* GetWindowParent(Window* pWindow);
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void Log(const char* pFormat, ...);
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virtual void LogFormatted(const char* pStr) = 0;;
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static WindowManager* GetInstance();
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protected:
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virtual PlatformWindow* CreatePlatformWindow(bool bMain,PlatformWindow* pParent,bool bDragWindow) = 0;
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virtual void InternalRun() = 0;
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void AddWindow(Window* pWindow);
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void RemoveWindow(Window* pWindow);
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void DestroyWindow(Window* pWindow);
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void InternalDock(Window* pWindow,EDockOrientation eOrientation,PlatformWindow* pToPlatformWindow);
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void InternalDockTo(Window* pWindow,EDockOrientation eOrientation,Container* pToContainer);
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void InternalDockWith(Window* pWindow,Window* pWithWindow,EDockOrientation eOrientation);
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void InternalFloat(Window* pWindow,ImVec2 oPosition,ImVec2 oSize);
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void InternalUnDock(Window* pWindow);
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void InternalDrag(Window* pWindow);
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void OnClosePlatformWindow(PlatformWindow* pWindow);
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void DrawWindowArea(PlatformWindow* pWindow,const ImVec2& oPos,const ImVec2& oSize,const ImColor& oColor);
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void PreUpdate();
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void Update();
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void UpdatePlatformwWindowActions();
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void UpdateDockActions();
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void UpdateOrphans();
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void Paint(PlatformWindow* pWindow);
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void StartDragWindow(Window* pWindow);
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void StopDragWindow();
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void UpdateDragWindow();
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Container*GetBestDocking(PlatformWindow* pPlatformWindow,const ImVec2 oCursorPos,EDockOrientation& oOutOrientation,ImVec2& oOutAreaPos,ImVec2& oOutAreaSize);
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Config m_oConfig;
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PlatformWindow* m_pMainPlatformWindow;
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PlatformWindowList m_lPlatformWindows;
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PlatformWindow* m_pDragPlatformWindow;
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WindowList m_lWindows;
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WindowList m_lOrphanWindows;
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WindowList m_lToDestroyWindows;
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PlatformWindowList m_lToDestroyPlatformWindows;
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ImwList<PlatformWindowAction*> m_lPlatformWindowActions;
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ImwList<DockAction*> m_lDockActions;
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ImwList<DrawWindowAreaAction> m_lDrawWindowAreas;
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PlatformWindow* m_pCurrentPlatformWindow;
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Window* m_pDraggedWindow;
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ImVec2 m_oDragPreviewOffset;
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static WindowManager* s_pInstance;
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};
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}
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#endif // IMGUI_WM_H_HEADER_GUARD
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