mirror of
https://github.com/bkaradzic/bgfx.git
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139 lines
3.8 KiB
C++
139 lines
3.8 KiB
C++
/*
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* Copyright 2011-2025 Branimir Karadzic. All rights reserved.
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* License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE
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*/
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#ifndef IMGUI_H_HEADER_GUARD
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#define IMGUI_H_HEADER_GUARD
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#include <bgfx/bgfx.h>
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#include <bx/bx.h>
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#include <dear-imgui/imgui.h>
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#include <iconfontheaders/icons_kenney.h>
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#include <iconfontheaders/icons_font_awesome.h>
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#define IMGUI_MBUT_LEFT 0x01
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#define IMGUI_MBUT_RIGHT 0x02
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#define IMGUI_MBUT_MIDDLE 0x04
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inline uint32_t imguiRGBA(uint8_t _r, uint8_t _g, uint8_t _b, uint8_t _a = 255)
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{
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return 0
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| (uint32_t(_r) << 0)
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| (uint32_t(_g) << 8)
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| (uint32_t(_b) << 16)
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| (uint32_t(_a) << 24)
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;
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}
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namespace bx { struct AllocatorI; }
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void imguiCreate(float _fontSize = 18.0f, bx::AllocatorI* _allocator = NULL);
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void imguiDestroy();
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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);
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void imguiEndFrame();
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namespace entry { class AppI; }
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void showExampleDialog(entry::AppI* _app, const char* _errorText = NULL);
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namespace ImGui
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{
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#define IMGUI_FLAGS_NONE UINT8_C(0x00)
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#define IMGUI_FLAGS_ALPHA_BLEND UINT8_C(0x01)
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struct TextureBgfx
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{
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bgfx::TextureHandle handle;
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uint8_t flags;
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uint8_t mip;
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uint32_t unused;
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};
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///
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inline ImTextureID toId(bgfx::TextureHandle _handle, uint8_t _flags, uint8_t _mip)
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{
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TextureBgfx tex
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{
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.handle = _handle,
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.flags = _flags,
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.mip = _mip,
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.unused = 0,
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};
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return bx::bitCast<ImTextureID>(tex);
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}
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// Helper function for passing bgfx::TextureHandle to ImGui::Image.
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inline void Image(bgfx::TextureHandle _handle
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, uint8_t _flags
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, uint8_t _mip
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, const ImVec2& _size
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, const ImVec2& _uv0 = ImVec2(0.0f, 0.0f)
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, const ImVec2& _uv1 = ImVec2(1.0f, 1.0f)
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, const ImVec4& _tintCol = ImVec4(1.0f, 1.0f, 1.0f, 1.0f)
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, const ImVec4& _borderCol = ImVec4(0.0f, 0.0f, 0.0f, 0.0f)
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)
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{
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ImageWithBg(toId(_handle, _flags, _mip), _size, _uv0, _uv1, _borderCol, _tintCol);
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}
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// Helper function for passing bgfx::TextureHandle to ImGui::Image.
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inline void Image(bgfx::TextureHandle _handle
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, const ImVec2& _size
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, const ImVec2& _uv0 = ImVec2(0.0f, 0.0f)
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, const ImVec2& _uv1 = ImVec2(1.0f, 1.0f)
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, const ImVec4& _tintCol = ImVec4(1.0f, 1.0f, 1.0f, 1.0f)
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, const ImVec4& _borderCol = ImVec4(0.0f, 0.0f, 0.0f, 0.0f)
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)
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{
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Image(_handle, IMGUI_FLAGS_ALPHA_BLEND, 0, _size, _uv0, _uv1, _tintCol, _borderCol);
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}
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// Helper function for passing bgfx::TextureHandle to ImGui::ImageButton.
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inline bool ImageButton(bgfx::TextureHandle _handle
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, uint8_t _flags
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, uint8_t _mip
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, const ImVec2& _size
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, const ImVec2& _uv0 = ImVec2(0.0f, 0.0f)
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, const ImVec2& _uv1 = ImVec2(1.0f, 1.0f)
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, const ImVec4& _bgCol = ImVec4(0.0f, 0.0f, 0.0f, 0.0f)
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, const ImVec4& _tintCol = ImVec4(1.0f, 1.0f, 1.0f, 1.0f)
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)
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{
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return ImageButton("image", toId(_handle, _flags, _mip), _size, _uv0, _uv1, _bgCol, _tintCol);
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}
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// Helper function for passing bgfx::TextureHandle to ImGui::ImageButton.
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inline bool ImageButton(bgfx::TextureHandle _handle
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, const ImVec2& _size
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, const ImVec2& _uv0 = ImVec2(0.0f, 0.0f)
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, const ImVec2& _uv1 = ImVec2(1.0f, 1.0f)
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, const ImVec4& _bgCol = ImVec4(0.0f, 0.0f, 0.0f, 0.0f)
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, const ImVec4& _tintCol = ImVec4(1.0f, 1.0f, 1.0f, 1.0f)
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)
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{
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return ImageButton(_handle, IMGUI_FLAGS_ALPHA_BLEND, 0, _size, _uv0, _uv1, _bgCol, _tintCol);
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}
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///
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inline void NextLine()
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{
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SetCursorPosY(GetCursorPosY() + GetTextLineHeightWithSpacing() );
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}
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///
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inline bool MouseOverArea()
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{
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return false
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|| ImGui::IsAnyItemActive()
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|| ImGui::IsAnyItemHovered()
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|| ImGui::IsWindowHovered(ImGuiHoveredFlags_AnyWindow)
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// || ImGuizmo::IsOver()
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;
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}
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} // namespace ImGui
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#endif // IMGUI_H_HEADER_GUARD
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