bgfx/examples/common/imgui/imgui.h
Бранимир Караџић 7d323e84f3 Updated ImGui.
2022-08-06 22:28:07 -07:00

132 lines
3.7 KiB
C++

/*
* Copyright 2011-2022 Branimir Karadzic. All rights reserved.
* License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE
*/
#ifndef IMGUI_H_HEADER_GUARD
#define IMGUI_H_HEADER_GUARD
#include <bgfx/bgfx.h>
#include <dear-imgui/imgui.h>
#include <iconfontheaders/icons_kenney.h>
#include <iconfontheaders/icons_font_awesome.h>
#define IMGUI_MBUT_LEFT 0x01
#define IMGUI_MBUT_RIGHT 0x02
#define IMGUI_MBUT_MIDDLE 0x04
inline uint32_t imguiRGBA(uint8_t _r, uint8_t _g, uint8_t _b, uint8_t _a = 255)
{
return 0
| (uint32_t(_r) << 0)
| (uint32_t(_g) << 8)
| (uint32_t(_b) << 16)
| (uint32_t(_a) << 24)
;
}
namespace bx { struct AllocatorI; }
void imguiCreate(float _fontSize = 18.0f, bx::AllocatorI* _allocator = NULL);
void imguiDestroy();
void imguiBeginFrame(int32_t _mx, int32_t _my, uint8_t _button, int32_t _scroll, uint16_t _width, uint16_t _height, int _inputChar = -1, bgfx::ViewId _view = 255);
void imguiEndFrame();
namespace entry { class AppI; }
void showExampleDialog(entry::AppI* _app, const char* _errorText = NULL);
namespace ImGui
{
#define IMGUI_FLAGS_NONE UINT8_C(0x00)
#define IMGUI_FLAGS_ALPHA_BLEND UINT8_C(0x01)
///
inline ImTextureID toId(bgfx::TextureHandle _handle, uint8_t _flags, uint8_t _mip)
{
union { struct { bgfx::TextureHandle handle; uint8_t flags; uint8_t mip; } s; ImTextureID id; } tex;
tex.s.handle = _handle;
tex.s.flags = _flags;
tex.s.mip = _mip;
return tex.id;
}
// Helper function for passing bgfx::TextureHandle to ImGui::Image.
inline void Image(bgfx::TextureHandle _handle
, uint8_t _flags
, uint8_t _mip
, const ImVec2& _size
, const ImVec2& _uv0 = ImVec2(0.0f, 0.0f)
, const ImVec2& _uv1 = ImVec2(1.0f, 1.0f)
, const ImVec4& _tintCol = ImVec4(1.0f, 1.0f, 1.0f, 1.0f)
, const ImVec4& _borderCol = ImVec4(0.0f, 0.0f, 0.0f, 0.0f)
)
{
Image(toId(_handle, _flags, _mip), _size, _uv0, _uv1, _tintCol, _borderCol);
}
// Helper function for passing bgfx::TextureHandle to ImGui::Image.
inline void Image(bgfx::TextureHandle _handle
, const ImVec2& _size
, const ImVec2& _uv0 = ImVec2(0.0f, 0.0f)
, const ImVec2& _uv1 = ImVec2(1.0f, 1.0f)
, const ImVec4& _tintCol = ImVec4(1.0f, 1.0f, 1.0f, 1.0f)
, const ImVec4& _borderCol = ImVec4(0.0f, 0.0f, 0.0f, 0.0f)
)
{
Image(_handle, IMGUI_FLAGS_ALPHA_BLEND, 0, _size, _uv0, _uv1, _tintCol, _borderCol);
}
// Helper function for passing bgfx::TextureHandle to ImGui::ImageButton.
inline bool ImageButton(bgfx::TextureHandle _handle
, uint8_t _flags
, uint8_t _mip
, const ImVec2& _size
, const ImVec2& _uv0 = ImVec2(0.0f, 0.0f)
, const ImVec2& _uv1 = ImVec2(1.0f, 1.0f)
, const ImVec4& _bgCol = ImVec4(0.0f, 0.0f, 0.0f, 0.0f)
, const ImVec4& _tintCol = ImVec4(1.0f, 1.0f, 1.0f, 1.0f)
)
{
return ImageButton("image", toId(_handle, _flags, _mip), _size, _uv0, _uv1, _bgCol, _tintCol);
}
// Helper function for passing bgfx::TextureHandle to ImGui::ImageButton.
inline bool ImageButton(bgfx::TextureHandle _handle
, const ImVec2& _size
, const ImVec2& _uv0 = ImVec2(0.0f, 0.0f)
, const ImVec2& _uv1 = ImVec2(1.0f, 1.0f)
, const ImVec4& _bgCol = ImVec4(0.0f, 0.0f, 0.0f, 0.0f)
, const ImVec4& _tintCol = ImVec4(1.0f, 1.0f, 1.0f, 1.0f)
)
{
return ImageButton(_handle, IMGUI_FLAGS_ALPHA_BLEND, 0, _size, _uv0, _uv1, _bgCol, _tintCol);
}
///
inline void NextLine()
{
SetCursorPosY(GetCursorPosY() + GetTextLineHeightWithSpacing() );
}
///
inline bool MouseOverArea()
{
return false
|| ImGui::IsAnyItemActive()
|| ImGui::IsAnyItemHovered()
|| ImGui::IsWindowHovered(ImGuiHoveredFlags_AnyWindow)
// || ImGuizmo::IsOver()
;
}
///
void PushEnabled(bool _enabled);
///
void PopEnabled();
} // namespace ImGui
#endif // IMGUI_H_HEADER_GUARD