IO: moved fields to put more focus on the new functions + update misc docs/references + update main.mm in Apple+Metal example (#4858)

This commit is contained in:
ocornut
2022-01-18 17:41:35 +01:00
parent 90a6961638
commit 673f5e588d
5 changed files with 46 additions and 37 deletions

35
imgui.h
View File

@ -1979,29 +1979,19 @@ struct ImGuiIO
#endif
//------------------------------------------------------------------
// Input - Fill before calling NewFrame()
// Input - Call before calling NewFrame()
//------------------------------------------------------------------
ImVec2 MousePos; // Mouse position, in pixels. Set to ImVec2(-FLT_MAX, -FLT_MAX) if mouse is unavailable (on another screen, etc.)
bool MouseDown[5]; // Mouse buttons: 0=left, 1=right, 2=middle + extras (ImGuiMouseButton_COUNT == 5). Dear ImGui mostly uses left and right buttons. Others buttons allows us to track if the mouse is being used by your application + available to user as a convenience via IsMouse** API.
float MouseWheel; // Mouse wheel Vertical: 1 unit scrolls about 5 lines text.
float MouseWheelH; // Mouse wheel Horizontal. Most users don't have a mouse with an horizontal wheel, may not be filled by all backends.
bool KeyCtrl; // Keyboard modifier down: Control
bool KeyShift; // Keyboard modifier down: Shift
bool KeyAlt; // Keyboard modifier down: Alt
bool KeySuper; // Keyboard modifier down: Cmd/Super/Windows
float NavInputs[ImGuiNavInput_COUNT]; // Gamepad inputs. Cleared back to zero by EndFrame(). Keyboard keys will be auto-mapped and be written here by NewFrame().
// Input Functions
IMGUI_API void AddKeyEvent(ImGuiKey key, bool down); // Queue a new key down/up event. Key should be "translated" (as in, generally ImGuiKey_A matches the key end-user would use to emit an 'A' character)
IMGUI_API void AddKeyModsEvent(ImGuiKeyModFlags modifiers);// Queue a change of Ctrl/Shift/Alt/Super modifiers
IMGUI_API void AddMousePosEvent(float x, float y); // Queue a mouse position update. Use -FLT_MAX,-FLT_MAX to signify no mouse (e.g. app not focused and not hovered)
IMGUI_API void AddMouseButtonEvent(int button, bool down); // Queue a mouse button change
IMGUI_API void AddMouseWheelEvent(float wh_x, float wh_y); // Queue a mouse wheel update
IMGUI_API void AddFocusEvent(bool focused); // Queue an hosting application/platform windows gain or loss of focus
IMGUI_API void AddInputCharacter(unsigned int c); // Queue new character input
IMGUI_API void AddInputCharacterUTF16(ImWchar16 c); // Queue new character input from an UTF-16 character, it can be a surrogate
IMGUI_API void AddInputCharactersUTF8(const char* str); // Queue new characters input from an UTF-8 string
IMGUI_API void AddFocusEvent(bool focused); // Queue a gain/loss of focus for the application (generally based on OS/platform focus of your window)
IMGUI_API void AddInputCharacter(unsigned int c); // Queue a new character input
IMGUI_API void AddInputCharacterUTF16(ImWchar16 c); // Queue a new character input from an UTF-16 character, it can be a surrogate
IMGUI_API void AddInputCharactersUTF8(const char* str); // Queue a new characters input from an UTF-8 string
IMGUI_API void ClearInputCharacters(); // [Internal] Clear the text input buffer manually
IMGUI_API void ClearInputKeys(); // [Internal] Release all keys
@ -2039,10 +2029,23 @@ struct ImGuiIO
// [Internal] Dear ImGui will maintain those fields. Forward compatibility not guaranteed!
//------------------------------------------------------------------
// Main Input State
// (this block used to be written by backend, since 1.87 it is best to NOT write to those directly, call the AddXXX functions above instead)
// (reading from those variables is fair game, as they are extremely unlikely to be moving anywhere)
ImVec2 MousePos; // Mouse position, in pixels. Set to ImVec2(-FLT_MAX, -FLT_MAX) if mouse is unavailable (on another screen, etc.)
bool MouseDown[5]; // Mouse buttons: 0=left, 1=right, 2=middle + extras (ImGuiMouseButton_COUNT == 5). Dear ImGui mostly uses left and right buttons. Others buttons allows us to track if the mouse is being used by your application + available to user as a convenience via IsMouse** API.
float MouseWheel; // Mouse wheel Vertical: 1 unit scrolls about 5 lines text.
float MouseWheelH; // Mouse wheel Horizontal. Most users don't have a mouse with an horizontal wheel, may not be filled by all backends.
bool KeyCtrl; // Keyboard modifier down: Control
bool KeyShift; // Keyboard modifier down: Shift
bool KeyAlt; // Keyboard modifier down: Alt
bool KeySuper; // Keyboard modifier down: Cmd/Super/Windows
float NavInputs[ImGuiNavInput_COUNT]; // Gamepad inputs. Cleared back to zero by EndFrame(). Keyboard keys will be auto-mapped and be written here by NewFrame().
// Other state maintained from data above + IO function calls
ImGuiKeyModFlags KeyMods; // Key mods flags (same as io.KeyCtrl/KeyShift/KeyAlt/KeySuper but merged into flags), updated by NewFrame()
ImGuiKeyModFlags KeyModsPrev; // Key mods flags (from previous frame)
ImGuiKeyData KeysData[ImGuiKey_KeysData_SIZE]; // Key state for all known keys. Use IsKeyXXX() functions to access this.
bool WantCaptureMouseUnlessPopupClose; // Alternative to WantCaptureMouse: (WantCaptureMouse == true && WantCaptureMouseUnlessPopupClose == false) when a click over void is expected to close a popup.
ImVec2 MousePosPrev; // Previous mouse position (note that MouseDelta is not necessary == MousePos-MousePosPrev, in case either position is invalid)
ImVec2 MouseClickedPos[5]; // Position at time of clicking