imguicontext.h

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#pragma once
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
#include "coregraphics/texture.h"
#include "coregraphics/buffer.h"
#include "coregraphics/resourcetable.h"
#include "input/inputevent.h"
#include "coregraphics/pipeline.h"
#include "graphics/graphicscontext.h"
#include "coregraphics/vertexlayout.h"
#include "imguiinputhandler.h"
#include "memory/arenaallocator.h"
#include "frame/framecode.h"
 
#define IMGUI_DEFINE_MATH_OPERATORS
#include "imgui.h"
 
struct ImDrawData;
struct ImFont;
struct ImVec2;
namespace Dynui
{
 
extern ImGuiKey NebulaToImguiKeyCodes[];
extern Util::Array<Util::String> ImguiDragAndDropFiles;
extern const char* EditorUIPath;
 
struct ImguiTextureId
{
    CoreGraphics::TextureId nebulaHandle = 0;
    uint layer : 8 = 0;
    uint mip : 4 = 0;
    uint useAlpha : 1 = 1;
    uint useRange : 1 = 0;
    float rangeMin, rangeMax;
    uint red : 1 = 1;
    uint green : 1 = 1;
    uint blue : 1 = 1;
    uint alpha : 1 = 1;
    uint splat : 1 = 0;
};
 
extern Ids::IdAllocator<ImguiTextureId> ImguiTextureIdAllocator;

Ids::Id32 AllocateImguiTextureId(const ImguiTextureId& data);
void SetImguiTextureIdData(Ids::Id32 id, const ImguiTextureId& data);
void DeallocateImguiTextureId(Ids::Id32 id);
 
 
extern ImFont* ImguiFont;
extern ImFont* ImguiBoldFont;
extern ImFont* ImguiItFont;
extern ImFont* ImguiIconFont;
 
class ImguiContext : public Graphics::GraphicsContext
{
    __DeclarePluginContext();
public:
    ImguiContext();
    virtual ~ImguiContext();

    static void Create();
    static void Discard();

    static void SetRectSize(SizeT width, SizeT height);
    
    static bool HandleInput(const Input::InputEvent& event);

    static void OnViewportResized(const uint framescriptHash, SizeT width, SizeT height);
    static void NewFrame(const Graphics::FrameContext& ctx);

    static void EndFrame(const Graphics::FrameContext& ctx);
 
private:
    static void RecoverImGuiContextErrors();
};

void ImGuiCloseButton(bool& toggle, int id);
bool ImGuiToggleButton(const char* label, bool toggle);
 
} // namespace Dynui