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Switch to imgui IO event API #2726

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Feb 11, 2022
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Switch to imgui IO event API #2726

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165 changes: 118 additions & 47 deletions examples/common/imgui/imgui.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -215,49 +215,116 @@ struct OcornutImguiContext
io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;

#if USE_ENTRY
io.KeyMap[ImGuiKey_Tab] = (int)entry::Key::Tab;
io.KeyMap[ImGuiKey_LeftArrow] = (int)entry::Key::Left;
io.KeyMap[ImGuiKey_RightArrow] = (int)entry::Key::Right;
io.KeyMap[ImGuiKey_UpArrow] = (int)entry::Key::Up;
io.KeyMap[ImGuiKey_DownArrow] = (int)entry::Key::Down;
io.KeyMap[ImGuiKey_PageUp] = (int)entry::Key::PageUp;
io.KeyMap[ImGuiKey_PageDown] = (int)entry::Key::PageDown;
io.KeyMap[ImGuiKey_Home] = (int)entry::Key::Home;
io.KeyMap[ImGuiKey_End] = (int)entry::Key::End;
io.KeyMap[ImGuiKey_Insert] = (int)entry::Key::Insert;
io.KeyMap[ImGuiKey_Delete] = (int)entry::Key::Delete;
io.KeyMap[ImGuiKey_Backspace] = (int)entry::Key::Backspace;
io.KeyMap[ImGuiKey_Space] = (int)entry::Key::Space;
io.KeyMap[ImGuiKey_Enter] = (int)entry::Key::Return;
io.KeyMap[ImGuiKey_Escape] = (int)entry::Key::Esc;
io.KeyMap[ImGuiKey_A] = (int)entry::Key::KeyA;
io.KeyMap[ImGuiKey_C] = (int)entry::Key::KeyC;
io.KeyMap[ImGuiKey_V] = (int)entry::Key::KeyV;
io.KeyMap[ImGuiKey_X] = (int)entry::Key::KeyX;
io.KeyMap[ImGuiKey_Y] = (int)entry::Key::KeyY;
io.KeyMap[ImGuiKey_Z] = (int)entry::Key::KeyZ;
for (int32_t ii = 0; ii < (int32_t)entry::Key::Count; ++ii)
{
m_keyMap[ii] = ImGuiKey_None;
}

m_keyMap[(int)entry::Key::Esc] = ImGuiKey_Escape;
m_keyMap[(int)entry::Key::Return] = ImGuiKey_Enter;
m_keyMap[(int)entry::Key::Tab] = ImGuiKey_Tab;
m_keyMap[(int)entry::Key::Space] = ImGuiKey_Space;
m_keyMap[(int)entry::Key::Backspace] = ImGuiKey_Backspace;
m_keyMap[(int)entry::Key::Up] = ImGuiKey_UpArrow;
m_keyMap[(int)entry::Key::Down] = ImGuiKey_DownArrow;
m_keyMap[(int)entry::Key::Left] = ImGuiKey_LeftArrow;
m_keyMap[(int)entry::Key::Right] = ImGuiKey_RightArrow;
m_keyMap[(int)entry::Key::Insert] = ImGuiKey_Insert;
m_keyMap[(int)entry::Key::Delete] = ImGuiKey_Delete;
m_keyMap[(int)entry::Key::Home] = ImGuiKey_Home;
m_keyMap[(int)entry::Key::End] = ImGuiKey_End;
m_keyMap[(int)entry::Key::PageUp] = ImGuiKey_PageUp;
m_keyMap[(int)entry::Key::PageDown] = ImGuiKey_PageDown;
m_keyMap[(int)entry::Key::Print] = ImGuiKey_PrintScreen;
m_keyMap[(int)entry::Key::Plus] = ImGuiKey_Equal;
m_keyMap[(int)entry::Key::Minus] = ImGuiKey_Minus;
m_keyMap[(int)entry::Key::LeftBracket] = ImGuiKey_LeftBracket;
m_keyMap[(int)entry::Key::RightBracket] = ImGuiKey_RightBracket;
m_keyMap[(int)entry::Key::Semicolon] = ImGuiKey_Semicolon;
m_keyMap[(int)entry::Key::Quote] = ImGuiKey_Apostrophe;
m_keyMap[(int)entry::Key::Comma] = ImGuiKey_Comma;
m_keyMap[(int)entry::Key::Period] = ImGuiKey_Period;
m_keyMap[(int)entry::Key::Slash] = ImGuiKey_Slash;
m_keyMap[(int)entry::Key::Backslash] = ImGuiKey_Backslash;
m_keyMap[(int)entry::Key::Tilde] = ImGuiKey_GraveAccent;
m_keyMap[(int)entry::Key::F1] = ImGuiKey_F1;
m_keyMap[(int)entry::Key::F2] = ImGuiKey_F2;
m_keyMap[(int)entry::Key::F3] = ImGuiKey_F3;
m_keyMap[(int)entry::Key::F4] = ImGuiKey_F4;
m_keyMap[(int)entry::Key::F5] = ImGuiKey_F5;
m_keyMap[(int)entry::Key::F6] = ImGuiKey_F6;
m_keyMap[(int)entry::Key::F7] = ImGuiKey_F7;
m_keyMap[(int)entry::Key::F8] = ImGuiKey_F8;
m_keyMap[(int)entry::Key::F9] = ImGuiKey_F9;
m_keyMap[(int)entry::Key::F10] = ImGuiKey_F10;
m_keyMap[(int)entry::Key::F11] = ImGuiKey_F11;
m_keyMap[(int)entry::Key::F12] = ImGuiKey_F12;
m_keyMap[(int)entry::Key::NumPad0] = ImGuiKey_Keypad0;
m_keyMap[(int)entry::Key::NumPad1] = ImGuiKey_Keypad1;
m_keyMap[(int)entry::Key::NumPad2] = ImGuiKey_Keypad2;
m_keyMap[(int)entry::Key::NumPad3] = ImGuiKey_Keypad3;
m_keyMap[(int)entry::Key::NumPad4] = ImGuiKey_Keypad4;
m_keyMap[(int)entry::Key::NumPad5] = ImGuiKey_Keypad5;
m_keyMap[(int)entry::Key::NumPad6] = ImGuiKey_Keypad6;
m_keyMap[(int)entry::Key::NumPad7] = ImGuiKey_Keypad7;
m_keyMap[(int)entry::Key::NumPad8] = ImGuiKey_Keypad8;
m_keyMap[(int)entry::Key::NumPad9] = ImGuiKey_Keypad9;
m_keyMap[(int)entry::Key::Key0] = ImGuiKey_0;
m_keyMap[(int)entry::Key::Key1] = ImGuiKey_1;
m_keyMap[(int)entry::Key::Key2] = ImGuiKey_2;
m_keyMap[(int)entry::Key::Key3] = ImGuiKey_3;
m_keyMap[(int)entry::Key::Key4] = ImGuiKey_4;
m_keyMap[(int)entry::Key::Key5] = ImGuiKey_5;
m_keyMap[(int)entry::Key::Key6] = ImGuiKey_6;
m_keyMap[(int)entry::Key::Key7] = ImGuiKey_7;
m_keyMap[(int)entry::Key::Key8] = ImGuiKey_8;
m_keyMap[(int)entry::Key::Key9] = ImGuiKey_9;
m_keyMap[(int)entry::Key::KeyA] = ImGuiKey_A;
m_keyMap[(int)entry::Key::KeyB] = ImGuiKey_B;
m_keyMap[(int)entry::Key::KeyC] = ImGuiKey_C;
m_keyMap[(int)entry::Key::KeyD] = ImGuiKey_D;
m_keyMap[(int)entry::Key::KeyE] = ImGuiKey_E;
m_keyMap[(int)entry::Key::KeyF] = ImGuiKey_F;
m_keyMap[(int)entry::Key::KeyG] = ImGuiKey_G;
m_keyMap[(int)entry::Key::KeyH] = ImGuiKey_H;
m_keyMap[(int)entry::Key::KeyI] = ImGuiKey_I;
m_keyMap[(int)entry::Key::KeyJ] = ImGuiKey_J;
m_keyMap[(int)entry::Key::KeyK] = ImGuiKey_K;
m_keyMap[(int)entry::Key::KeyL] = ImGuiKey_L;
m_keyMap[(int)entry::Key::KeyM] = ImGuiKey_M;
m_keyMap[(int)entry::Key::KeyN] = ImGuiKey_N;
m_keyMap[(int)entry::Key::KeyO] = ImGuiKey_O;
m_keyMap[(int)entry::Key::KeyP] = ImGuiKey_P;
m_keyMap[(int)entry::Key::KeyQ] = ImGuiKey_Q;
m_keyMap[(int)entry::Key::KeyR] = ImGuiKey_R;
m_keyMap[(int)entry::Key::KeyS] = ImGuiKey_S;
m_keyMap[(int)entry::Key::KeyT] = ImGuiKey_T;
m_keyMap[(int)entry::Key::KeyU] = ImGuiKey_U;
m_keyMap[(int)entry::Key::KeyV] = ImGuiKey_V;
m_keyMap[(int)entry::Key::KeyW] = ImGuiKey_W;
m_keyMap[(int)entry::Key::KeyX] = ImGuiKey_X;
m_keyMap[(int)entry::Key::KeyY] = ImGuiKey_Y;
m_keyMap[(int)entry::Key::KeyZ] = ImGuiKey_Z;

io.ConfigFlags |= 0
| ImGuiConfigFlags_NavEnableGamepad
| ImGuiConfigFlags_NavEnableKeyboard
;

io.NavInputs[ImGuiNavInput_Activate] = (int)entry::Key::GamepadA;
io.NavInputs[ImGuiNavInput_Cancel] = (int)entry::Key::GamepadB;
// io.NavInputs[ImGuiNavInput_Input] = (int)entry::Key::;
// io.NavInputs[ImGuiNavInput_Menu] = (int)entry::Key::;
io.NavInputs[ImGuiNavInput_DpadLeft] = (int)entry::Key::GamepadLeft;
io.NavInputs[ImGuiNavInput_DpadRight] = (int)entry::Key::GamepadRight;
io.NavInputs[ImGuiNavInput_DpadUp] = (int)entry::Key::GamepadUp;
io.NavInputs[ImGuiNavInput_DpadDown] = (int)entry::Key::GamepadDown;
// io.NavInputs[ImGuiNavInput_LStickLeft] = (int)entry::Key::;
// io.NavInputs[ImGuiNavInput_LStickRight] = (int)entry::Key::;
// io.NavInputs[ImGuiNavInput_LStickUp] = (int)entry::Key::;
// io.NavInputs[ImGuiNavInput_LStickDown] = (int)entry::Key::;
// io.NavInputs[ImGuiNavInput_FocusPrev] = (int)entry::Key::;
// io.NavInputs[ImGuiNavInput_FocusNext] = (int)entry::Key::;
// io.NavInputs[ImGuiNavInput_TweakSlow] = (int)entry::Key::;
// io.NavInputs[ImGuiNavInput_TweakFast] = (int)entry::Key::;
m_keyMap[(int)entry::Key::GamepadStart] = ImGuiKey_GamepadStart;
m_keyMap[(int)entry::Key::GamepadBack] = ImGuiKey_GamepadBack;
m_keyMap[(int)entry::Key::GamepadY] = ImGuiKey_GamepadFaceUp;
m_keyMap[(int)entry::Key::GamepadA] = ImGuiKey_GamepadFaceDown;
m_keyMap[(int)entry::Key::GamepadX] = ImGuiKey_GamepadFaceLeft;
m_keyMap[(int)entry::Key::GamepadB] = ImGuiKey_GamepadFaceRight;
m_keyMap[(int)entry::Key::GamepadUp] = ImGuiKey_GamepadDpadUp;
m_keyMap[(int)entry::Key::GamepadDown] = ImGuiKey_GamepadDpadDown;
m_keyMap[(int)entry::Key::GamepadLeft] = ImGuiKey_GamepadDpadLeft;
m_keyMap[(int)entry::Key::GamepadRight] = ImGuiKey_GamepadDpadRight;
m_keyMap[(int)entry::Key::GamepadShoulderL] = ImGuiKey_GamepadL1;
m_keyMap[(int)entry::Key::GamepadShoulderR] = ImGuiKey_GamepadR1;
m_keyMap[(int)entry::Key::GamepadThumbL] = ImGuiKey_GamepadL3;
m_keyMap[(int)entry::Key::GamepadThumbR] = ImGuiKey_GamepadR3;
#endif // USE_ENTRY

bgfx::RendererType::Enum type = bgfx::getRendererType();
Expand Down Expand Up @@ -387,22 +454,23 @@ struct OcornutImguiContext
const double freq = double(bx::getHPFrequency() );
io.DeltaTime = float(frameTime/freq);

io.MousePos = ImVec2( (float)_mx, (float)_my);
io.MouseDown[0] = 0 != (_button & IMGUI_MBUT_LEFT);
io.MouseDown[1] = 0 != (_button & IMGUI_MBUT_RIGHT);
io.MouseDown[2] = 0 != (_button & IMGUI_MBUT_MIDDLE);
io.MouseWheel = (float)(_scroll - m_lastScroll);
io.AddMousePosEvent( (float)_mx, (float)_my);
io.AddMouseButtonEvent(ImGuiMouseButton_Left, 0 != (_button & IMGUI_MBUT_LEFT ) );
io.AddMouseButtonEvent(ImGuiMouseButton_Right, 0 != (_button & IMGUI_MBUT_RIGHT ) );
io.AddMouseButtonEvent(ImGuiMouseButton_Middle, 0 != (_button & IMGUI_MBUT_MIDDLE) );
io.AddMouseWheelEvent(0.0f, (float)(_scroll - m_lastScroll) );
m_lastScroll = _scroll;

#if USE_ENTRY
uint8_t modifiers = inputGetModifiersState();
io.KeyShift = 0 != (modifiers & (entry::Modifier::LeftShift | entry::Modifier::RightShift) );
io.KeyCtrl = 0 != (modifiers & (entry::Modifier::LeftCtrl | entry::Modifier::RightCtrl ) );
io.KeyAlt = 0 != (modifiers & (entry::Modifier::LeftAlt | entry::Modifier::RightAlt ) );
io.KeySuper = 0 != (modifiers & (entry::Modifier::LeftMeta | entry::Modifier::RightMeta ) );
io.AddKeyEvent(ImGuiKey_ModShift, 0 != (modifiers & (entry::Modifier::LeftShift | entry::Modifier::RightShift) ) );
io.AddKeyEvent(ImGuiKey_ModCtrl, 0 != (modifiers & (entry::Modifier::LeftCtrl | entry::Modifier::RightCtrl ) ) );
io.AddKeyEvent(ImGuiKey_ModAlt, 0 != (modifiers & (entry::Modifier::LeftAlt | entry::Modifier::RightAlt ) ) );
io.AddKeyEvent(ImGuiKey_ModSuper, 0 != (modifiers & (entry::Modifier::LeftMeta | entry::Modifier::RightMeta ) ) );
for (int32_t ii = 0; ii < (int32_t)entry::Key::Count; ++ii)
{
io.KeysDown[ii] = inputGetKeyState(entry::Key::Enum(ii) );
io.AddKeyEvent(m_keyMap[ii], inputGetKeyState(entry::Key::Enum(ii) ) );
io.SetKeyEventNativeData(m_keyMap[ii], 0, 0, ii);
}
#endif // USE_ENTRY

Expand All @@ -429,6 +497,9 @@ struct OcornutImguiContext
int64_t m_last;
int32_t m_lastScroll;
bgfx::ViewId m_viewId;
#if USE_ENTRY
ImGuiKey m_keyMap[(int)entry::Key::Count];
#endif // USE_ENTRY
};

static OcornutImguiContext s_ctx;
Expand Down