ImGuiEngine Class Reference

#include <ImGuiWrapper.h>

Public Member Functions
	ImGuiEngine (std::string configDir, ImFontAtlas *fontAtlas)
	~ImGuiEngine ()
ImGuiRenderer *	renderer () const
ImGuiContext *	context () const

Private Member Functions
void	init (const std::string &configPath)

Private Attributes
ImGuiRenderer *	_renderer {nullptr}
ImGuiContext *	_context {nullptr}
std::string	_iniFilename

Detailed Description

Wraps the following things:

• Create ImGuiContext (which is shared over all instances of ImGuiWrapper)
• Destroy ImGuiContext
• Init general imgui stuff (e.g. define where to store ini file)
• Load fonts (these are shared over the all ImGuiWrappers)
• Instantiate renderer

Definition at line 93 of file ImGuiWrapper.h.

Constructor & Destructor Documentation

ImGuiEngine()

ImGuiEngine::ImGuiEngine ( std::string  configDir, ImFontAtlas *  fontAtlas  )

inline

Definition at line 96 of file ImGuiWrapper.h.

    {
        _context = ImGui::CreateContext(fontAtlas);
        init(configDir);
 
        // make sure fonts are loaded before texture for fonts is generated
        //(here fonts are transferred with font atlas)
        _renderer = new ImGuiRendererOpenGL(_context);
        assert(_renderer);
    }

~ImGuiEngine()

ImGuiEngine::~ImGuiEngine ( )

inline

Definition at line 107 of file ImGuiWrapper.h.

    {
        if (_renderer)
            delete _renderer;
        ImGui::DestroyContext(_context);
        _context = nullptr;
    }

Member Function Documentation

context()

ImGuiContext* ImGuiEngine::context ( ) const

inline

Definition at line 116 of file ImGuiWrapper.h.

{ return _context; }

init()

void ImGuiEngine::init ( const std::string &  configPath )

private

Definition at line 398 of file ImGuiWrapper.cpp.

{
    ImGuiIO& io    = _context->IO;
    _iniFilename   = configPath + "imgui.ini";
    io.IniFilename = _iniFilename.c_str();
 
    io.KeyMap[ImGuiKey_Tab]        = K_tab;
    io.KeyMap[ImGuiKey_LeftArrow]  = K_left;
    io.KeyMap[ImGuiKey_RightArrow] = K_right;
    io.KeyMap[ImGuiKey_UpArrow]    = K_up;
    io.KeyMap[ImGuiKey_DownArrow]  = K_down;
    io.KeyMap[ImGuiKey_PageUp]     = K_pageUp;
    io.KeyMap[ImGuiKey_PageDown]   = K_pageUp;
    io.KeyMap[ImGuiKey_Home]       = K_home;
    io.KeyMap[ImGuiKey_End]        = K_end;
    io.KeyMap[ImGuiKey_Delete]     = K_delete;
    io.KeyMap[ImGuiKey_Backspace]  = K_backspace;
    io.KeyMap[ImGuiKey_Enter]      = K_enter;
    io.KeyMap[ImGuiKey_Escape]     = K_esc;
    io.KeyMap[ImGuiKey_A]          = 'A';
    io.KeyMap[ImGuiKey_C]          = 'C';
    io.KeyMap[ImGuiKey_V]          = 'V';
    io.KeyMap[ImGuiKey_X]          = 'X';
    io.KeyMap[ImGuiKey_Y]          = 'Y';
    io.KeyMap[ImGuiKey_Z]          = 'Z';
 
    // The screen size is set again in onResize
    io.DisplaySize             = ImVec2(0, 0);
    io.DisplayFramebufferScale = ImVec2(1, 1);
}

renderer()

ImGuiRenderer* ImGuiEngine::renderer ( ) const

inline

Definition at line 115 of file ImGuiWrapper.h.

{ return _renderer; }

Member Data Documentation

_context

ImGuiContext* ImGuiEngine::_context {nullptr}

private

Definition at line 122 of file ImGuiWrapper.h.

_iniFilename

std::string ImGuiEngine::_iniFilename

private

Definition at line 123 of file ImGuiWrapper.h.

_renderer

ImGuiRenderer* ImGuiEngine::_renderer {nullptr}

private

Definition at line 121 of file ImGuiWrapper.h.

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The documentation for this class was generated from the following files:

• ImGuiWrapper.h
• ImGuiWrapper.cpp