Refactor: moved UpdateAliasKey(), GetMergedModsFromKeys(), UpdateKeyboardInputs(), UpdateMouseInputs() to INPUTS section.

This commit is contained in:
ocornut 2022-12-06 12:14:30 +01:00
parent f83da768b6
commit ed54e14f1b

401
imgui.cpp
View File

@ -4248,204 +4248,6 @@ static bool IsWindowActiveAndVisible(ImGuiWindow* window)
return (window->Active) && (!window->Hidden);
}
static void UpdateAliasKey(ImGuiKey key, bool v, float analog_value)
{
IM_ASSERT(ImGui::IsAliasKey(key));
ImGuiKeyData* key_data = ImGui::GetKeyData(key);
key_data->Down = v;
key_data->AnalogValue = analog_value;
}
// [Internal] Do not use directly
static ImGuiKeyChord GetMergedModsFromKeys()
{
ImGuiKeyChord mods = 0;
if (ImGui::IsKeyDown(ImGuiMod_Ctrl)) { mods |= ImGuiMod_Ctrl; }
if (ImGui::IsKeyDown(ImGuiMod_Shift)) { mods |= ImGuiMod_Shift; }
if (ImGui::IsKeyDown(ImGuiMod_Alt)) { mods |= ImGuiMod_Alt; }
if (ImGui::IsKeyDown(ImGuiMod_Super)) { mods |= ImGuiMod_Super; }
return mods;
}
static void ImGui::UpdateKeyboardInputs()
{
ImGuiContext& g = *GImGui;
ImGuiIO& io = g.IO;
// Import legacy keys or verify they are not used
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
if (io.BackendUsingLegacyKeyArrays == 0)
{
// Backend used new io.AddKeyEvent() API: Good! Verify that old arrays are never written to externally.
for (int n = 0; n < ImGuiKey_LegacyNativeKey_END; n++)
IM_ASSERT((io.KeysDown[n] == false || IsKeyDown((ImGuiKey)n)) && "Backend needs to either only use io.AddKeyEvent(), either only fill legacy io.KeysDown[] + io.KeyMap[]. Not both!");
}
else
{
if (g.FrameCount == 0)
for (int n = ImGuiKey_LegacyNativeKey_BEGIN; n < ImGuiKey_LegacyNativeKey_END; n++)
IM_ASSERT(g.IO.KeyMap[n] == -1 && "Backend is not allowed to write to io.KeyMap[0..511]!");
// Build reverse KeyMap (Named -> Legacy)
for (int n = ImGuiKey_NamedKey_BEGIN; n < ImGuiKey_NamedKey_END; n++)
if (io.KeyMap[n] != -1)
{
IM_ASSERT(IsLegacyKey((ImGuiKey)io.KeyMap[n]));
io.KeyMap[io.KeyMap[n]] = n;
}
// Import legacy keys into new ones
for (int n = ImGuiKey_LegacyNativeKey_BEGIN; n < ImGuiKey_LegacyNativeKey_END; n++)
if (io.KeysDown[n] || io.BackendUsingLegacyKeyArrays == 1)
{
const ImGuiKey key = (ImGuiKey)(io.KeyMap[n] != -1 ? io.KeyMap[n] : n);
IM_ASSERT(io.KeyMap[n] == -1 || IsNamedKey(key));
io.KeysData[key].Down = io.KeysDown[n];
if (key != n)
io.KeysDown[key] = io.KeysDown[n]; // Allow legacy code using io.KeysDown[GetKeyIndex()] with old backends
io.BackendUsingLegacyKeyArrays = 1;
}
if (io.BackendUsingLegacyKeyArrays == 1)
{
GetKeyData(ImGuiMod_Ctrl)->Down = io.KeyCtrl;
GetKeyData(ImGuiMod_Shift)->Down = io.KeyShift;
GetKeyData(ImGuiMod_Alt)->Down = io.KeyAlt;
GetKeyData(ImGuiMod_Super)->Down = io.KeySuper;
}
}
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
const bool nav_gamepad_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) != 0 && (io.BackendFlags & ImGuiBackendFlags_HasGamepad) != 0;
if (io.BackendUsingLegacyNavInputArray && nav_gamepad_active)
{
#define MAP_LEGACY_NAV_INPUT_TO_KEY1(_KEY, _NAV1) do { io.KeysData[_KEY].Down = (io.NavInputs[_NAV1] > 0.0f); io.KeysData[_KEY].AnalogValue = io.NavInputs[_NAV1]; } while (0)
#define MAP_LEGACY_NAV_INPUT_TO_KEY2(_KEY, _NAV1, _NAV2) do { io.KeysData[_KEY].Down = (io.NavInputs[_NAV1] > 0.0f) || (io.NavInputs[_NAV2] > 0.0f); io.KeysData[_KEY].AnalogValue = ImMax(io.NavInputs[_NAV1], io.NavInputs[_NAV2]); } while (0)
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceDown, ImGuiNavInput_Activate);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceRight, ImGuiNavInput_Cancel);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceLeft, ImGuiNavInput_Menu);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceUp, ImGuiNavInput_Input);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadLeft, ImGuiNavInput_DpadLeft);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadRight, ImGuiNavInput_DpadRight);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadUp, ImGuiNavInput_DpadUp);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadDown, ImGuiNavInput_DpadDown);
MAP_LEGACY_NAV_INPUT_TO_KEY2(ImGuiKey_GamepadL1, ImGuiNavInput_FocusPrev, ImGuiNavInput_TweakSlow);
MAP_LEGACY_NAV_INPUT_TO_KEY2(ImGuiKey_GamepadR1, ImGuiNavInput_FocusNext, ImGuiNavInput_TweakFast);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickLeft, ImGuiNavInput_LStickLeft);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickRight, ImGuiNavInput_LStickRight);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickUp, ImGuiNavInput_LStickUp);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickDown, ImGuiNavInput_LStickDown);
#undef NAV_MAP_KEY
}
#endif
#endif
// Update aliases
for (int n = 0; n < ImGuiMouseButton_COUNT; n++)
UpdateAliasKey(MouseButtonToKey(n), io.MouseDown[n], io.MouseDown[n] ? 1.0f : 0.0f);
UpdateAliasKey(ImGuiKey_MouseWheelX, io.MouseWheelH != 0.0f, io.MouseWheelH);
UpdateAliasKey(ImGuiKey_MouseWheelY, io.MouseWheel != 0.0f, io.MouseWheel);
// Synchronize io.KeyMods and io.KeyXXX values.
// - New backends (1.87+): send io.AddKeyEvent(ImGuiMod_XXX) -> -> (here) deriving io.KeyMods + io.KeyXXX from key array.
// - Legacy backends: set io.KeyXXX bools -> (above) set key array from io.KeyXXX -> (here) deriving io.KeyMods + io.KeyXXX from key array.
// So with legacy backends the 4 values will do a unnecessary back-and-forth but it makes the code simpler and future facing.
io.KeyMods = GetMergedModsFromKeys();
io.KeyCtrl = (io.KeyMods & ImGuiMod_Ctrl) != 0;
io.KeyShift = (io.KeyMods & ImGuiMod_Shift) != 0;
io.KeyAlt = (io.KeyMods & ImGuiMod_Alt) != 0;
io.KeySuper = (io.KeyMods & ImGuiMod_Super) != 0;
// Clear gamepad data if disabled
if ((io.BackendFlags & ImGuiBackendFlags_HasGamepad) == 0)
for (int i = ImGuiKey_Gamepad_BEGIN; i < ImGuiKey_Gamepad_END; i++)
{
io.KeysData[i - ImGuiKey_KeysData_OFFSET].Down = false;
io.KeysData[i - ImGuiKey_KeysData_OFFSET].AnalogValue = 0.0f;
}
// Update keys
for (int i = 0; i < ImGuiKey_KeysData_SIZE; i++)
{
ImGuiKeyData* key_data = &io.KeysData[i];
key_data->DownDurationPrev = key_data->DownDuration;
key_data->DownDuration = key_data->Down ? (key_data->DownDuration < 0.0f ? 0.0f : key_data->DownDuration + io.DeltaTime) : -1.0f;
}
// Update keys/input owner (named keys only): one entry per key
for (ImGuiKey key = ImGuiKey_NamedKey_BEGIN; key < ImGuiKey_NamedKey_END; key = (ImGuiKey)(key + 1))
{
ImGuiKeyData* key_data = &io.KeysData[key - ImGuiKey_KeysData_OFFSET];
ImGuiKeyOwnerData* owner_data = &g.KeysOwnerData[key - ImGuiKey_NamedKey_BEGIN];
owner_data->OwnerCurr = owner_data->OwnerNext;
if (!key_data->Down) // Important: ownership is released on the frame after a release. Ensure a 'MouseDown -> CloseWindow -> MouseUp' chain doesn't lead to someone else seeing the MouseUp.
owner_data->OwnerNext = ImGuiKeyOwner_None;
owner_data->LockThisFrame = owner_data->LockUntilRelease = owner_data->LockUntilRelease && key_data->Down; // Clear LockUntilRelease when key is not Down anymore
}
UpdateKeyRoutingTable(&g.KeysRoutingTable);
}
static void ImGui::UpdateMouseInputs()
{
ImGuiContext& g = *GImGui;
ImGuiIO& io = g.IO;
// Round mouse position to avoid spreading non-rounded position (e.g. UpdateManualResize doesn't support them well)
if (IsMousePosValid(&io.MousePos))
io.MousePos = g.MouseLastValidPos = ImFloorSigned(io.MousePos);
// If mouse just appeared or disappeared (usually denoted by -FLT_MAX components) we cancel out movement in MouseDelta
if (IsMousePosValid(&io.MousePos) && IsMousePosValid(&io.MousePosPrev))
io.MouseDelta = io.MousePos - io.MousePosPrev;
else
io.MouseDelta = ImVec2(0.0f, 0.0f);
// If mouse moved we re-enable mouse hovering in case it was disabled by gamepad/keyboard. In theory should use a >0.0f threshold but would need to reset in everywhere we set this to true.
if (io.MouseDelta.x != 0.0f || io.MouseDelta.y != 0.0f)
g.NavDisableMouseHover = false;
io.MousePosPrev = io.MousePos;
for (int i = 0; i < IM_ARRAYSIZE(io.MouseDown); i++)
{
io.MouseClicked[i] = io.MouseDown[i] && io.MouseDownDuration[i] < 0.0f;
io.MouseClickedCount[i] = 0; // Will be filled below
io.MouseReleased[i] = !io.MouseDown[i] && io.MouseDownDuration[i] >= 0.0f;
io.MouseDownDurationPrev[i] = io.MouseDownDuration[i];
io.MouseDownDuration[i] = io.MouseDown[i] ? (io.MouseDownDuration[i] < 0.0f ? 0.0f : io.MouseDownDuration[i] + io.DeltaTime) : -1.0f;
if (io.MouseClicked[i])
{
bool is_repeated_click = false;
if ((float)(g.Time - io.MouseClickedTime[i]) < io.MouseDoubleClickTime)
{
ImVec2 delta_from_click_pos = IsMousePosValid(&io.MousePos) ? (io.MousePos - io.MouseClickedPos[i]) : ImVec2(0.0f, 0.0f);
if (ImLengthSqr(delta_from_click_pos) < io.MouseDoubleClickMaxDist * io.MouseDoubleClickMaxDist)
is_repeated_click = true;
}
if (is_repeated_click)
io.MouseClickedLastCount[i]++;
else
io.MouseClickedLastCount[i] = 1;
io.MouseClickedTime[i] = g.Time;
io.MouseClickedPos[i] = io.MousePos;
io.MouseClickedCount[i] = io.MouseClickedLastCount[i];
io.MouseDragMaxDistanceSqr[i] = 0.0f;
}
else if (io.MouseDown[i])
{
// Maintain the maximum distance we reaching from the initial click position, which is used with dragging threshold
float delta_sqr_click_pos = IsMousePosValid(&io.MousePos) ? ImLengthSqr(io.MousePos - io.MouseClickedPos[i]) : 0.0f;
io.MouseDragMaxDistanceSqr[i] = ImMax(io.MouseDragMaxDistanceSqr[i], delta_sqr_click_pos);
}
// We provide io.MouseDoubleClicked[] as a legacy service
io.MouseDoubleClicked[i] = (io.MouseClickedCount[i] == 2);
// Clicking any mouse button reactivate mouse hovering which may have been deactivated by gamepad/keyboard navigation
if (io.MouseClicked[i])
g.NavDisableMouseHover = false;
}
}
// The reason this is exposed in imgui_internal.h is: on touch-based system that don't have hovering, we want to dispatch inputs to the right target (imgui vs imgui+app)
void ImGui::UpdateHoveredWindowAndCaptureFlags()
{
@ -7772,6 +7574,11 @@ bool ImGui::IsRectVisible(const ImVec2& rect_min, const ImVec2& rect_max)
// - GetMouseCursor()
// - SetMouseCursor()
//-----------------------------------------------------------------------------
// - UpdateAliasKey()
// - GetMergedModsFromKeys()
// - UpdateKeyboardInputs()
// - UpdateMouseInputs()
//-----------------------------------------------------------------------------
// - LockWheelingWindow [Internal]
// - FindBestWheelingWindow [Internal]
// - UpdateMouseWheel() [Internal]
@ -8360,6 +8167,204 @@ void ImGui::SetMouseCursor(ImGuiMouseCursor cursor_type)
g.MouseCursor = cursor_type;
}
static void UpdateAliasKey(ImGuiKey key, bool v, float analog_value)
{
IM_ASSERT(ImGui::IsAliasKey(key));
ImGuiKeyData* key_data = ImGui::GetKeyData(key);
key_data->Down = v;
key_data->AnalogValue = analog_value;
}
// [Internal] Do not use directly
static ImGuiKeyChord GetMergedModsFromKeys()
{
ImGuiKeyChord mods = 0;
if (ImGui::IsKeyDown(ImGuiMod_Ctrl)) { mods |= ImGuiMod_Ctrl; }
if (ImGui::IsKeyDown(ImGuiMod_Shift)) { mods |= ImGuiMod_Shift; }
if (ImGui::IsKeyDown(ImGuiMod_Alt)) { mods |= ImGuiMod_Alt; }
if (ImGui::IsKeyDown(ImGuiMod_Super)) { mods |= ImGuiMod_Super; }
return mods;
}
static void ImGui::UpdateKeyboardInputs()
{
ImGuiContext& g = *GImGui;
ImGuiIO& io = g.IO;
// Import legacy keys or verify they are not used
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
if (io.BackendUsingLegacyKeyArrays == 0)
{
// Backend used new io.AddKeyEvent() API: Good! Verify that old arrays are never written to externally.
for (int n = 0; n < ImGuiKey_LegacyNativeKey_END; n++)
IM_ASSERT((io.KeysDown[n] == false || IsKeyDown((ImGuiKey)n)) && "Backend needs to either only use io.AddKeyEvent(), either only fill legacy io.KeysDown[] + io.KeyMap[]. Not both!");
}
else
{
if (g.FrameCount == 0)
for (int n = ImGuiKey_LegacyNativeKey_BEGIN; n < ImGuiKey_LegacyNativeKey_END; n++)
IM_ASSERT(g.IO.KeyMap[n] == -1 && "Backend is not allowed to write to io.KeyMap[0..511]!");
// Build reverse KeyMap (Named -> Legacy)
for (int n = ImGuiKey_NamedKey_BEGIN; n < ImGuiKey_NamedKey_END; n++)
if (io.KeyMap[n] != -1)
{
IM_ASSERT(IsLegacyKey((ImGuiKey)io.KeyMap[n]));
io.KeyMap[io.KeyMap[n]] = n;
}
// Import legacy keys into new ones
for (int n = ImGuiKey_LegacyNativeKey_BEGIN; n < ImGuiKey_LegacyNativeKey_END; n++)
if (io.KeysDown[n] || io.BackendUsingLegacyKeyArrays == 1)
{
const ImGuiKey key = (ImGuiKey)(io.KeyMap[n] != -1 ? io.KeyMap[n] : n);
IM_ASSERT(io.KeyMap[n] == -1 || IsNamedKey(key));
io.KeysData[key].Down = io.KeysDown[n];
if (key != n)
io.KeysDown[key] = io.KeysDown[n]; // Allow legacy code using io.KeysDown[GetKeyIndex()] with old backends
io.BackendUsingLegacyKeyArrays = 1;
}
if (io.BackendUsingLegacyKeyArrays == 1)
{
GetKeyData(ImGuiMod_Ctrl)->Down = io.KeyCtrl;
GetKeyData(ImGuiMod_Shift)->Down = io.KeyShift;
GetKeyData(ImGuiMod_Alt)->Down = io.KeyAlt;
GetKeyData(ImGuiMod_Super)->Down = io.KeySuper;
}
}
#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
const bool nav_gamepad_active = (io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) != 0 && (io.BackendFlags & ImGuiBackendFlags_HasGamepad) != 0;
if (io.BackendUsingLegacyNavInputArray && nav_gamepad_active)
{
#define MAP_LEGACY_NAV_INPUT_TO_KEY1(_KEY, _NAV1) do { io.KeysData[_KEY].Down = (io.NavInputs[_NAV1] > 0.0f); io.KeysData[_KEY].AnalogValue = io.NavInputs[_NAV1]; } while (0)
#define MAP_LEGACY_NAV_INPUT_TO_KEY2(_KEY, _NAV1, _NAV2) do { io.KeysData[_KEY].Down = (io.NavInputs[_NAV1] > 0.0f) || (io.NavInputs[_NAV2] > 0.0f); io.KeysData[_KEY].AnalogValue = ImMax(io.NavInputs[_NAV1], io.NavInputs[_NAV2]); } while (0)
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceDown, ImGuiNavInput_Activate);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceRight, ImGuiNavInput_Cancel);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceLeft, ImGuiNavInput_Menu);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadFaceUp, ImGuiNavInput_Input);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadLeft, ImGuiNavInput_DpadLeft);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadRight, ImGuiNavInput_DpadRight);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadUp, ImGuiNavInput_DpadUp);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadDpadDown, ImGuiNavInput_DpadDown);
MAP_LEGACY_NAV_INPUT_TO_KEY2(ImGuiKey_GamepadL1, ImGuiNavInput_FocusPrev, ImGuiNavInput_TweakSlow);
MAP_LEGACY_NAV_INPUT_TO_KEY2(ImGuiKey_GamepadR1, ImGuiNavInput_FocusNext, ImGuiNavInput_TweakFast);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickLeft, ImGuiNavInput_LStickLeft);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickRight, ImGuiNavInput_LStickRight);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickUp, ImGuiNavInput_LStickUp);
MAP_LEGACY_NAV_INPUT_TO_KEY1(ImGuiKey_GamepadLStickDown, ImGuiNavInput_LStickDown);
#undef NAV_MAP_KEY
}
#endif
#endif
// Update aliases
for (int n = 0; n < ImGuiMouseButton_COUNT; n++)
UpdateAliasKey(MouseButtonToKey(n), io.MouseDown[n], io.MouseDown[n] ? 1.0f : 0.0f);
UpdateAliasKey(ImGuiKey_MouseWheelX, io.MouseWheelH != 0.0f, io.MouseWheelH);
UpdateAliasKey(ImGuiKey_MouseWheelY, io.MouseWheel != 0.0f, io.MouseWheel);
// Synchronize io.KeyMods and io.KeyXXX values.
// - New backends (1.87+): send io.AddKeyEvent(ImGuiMod_XXX) -> -> (here) deriving io.KeyMods + io.KeyXXX from key array.
// - Legacy backends: set io.KeyXXX bools -> (above) set key array from io.KeyXXX -> (here) deriving io.KeyMods + io.KeyXXX from key array.
// So with legacy backends the 4 values will do a unnecessary back-and-forth but it makes the code simpler and future facing.
io.KeyMods = GetMergedModsFromKeys();
io.KeyCtrl = (io.KeyMods & ImGuiMod_Ctrl) != 0;
io.KeyShift = (io.KeyMods & ImGuiMod_Shift) != 0;
io.KeyAlt = (io.KeyMods & ImGuiMod_Alt) != 0;
io.KeySuper = (io.KeyMods & ImGuiMod_Super) != 0;
// Clear gamepad data if disabled
if ((io.BackendFlags & ImGuiBackendFlags_HasGamepad) == 0)
for (int i = ImGuiKey_Gamepad_BEGIN; i < ImGuiKey_Gamepad_END; i++)
{
io.KeysData[i - ImGuiKey_KeysData_OFFSET].Down = false;
io.KeysData[i - ImGuiKey_KeysData_OFFSET].AnalogValue = 0.0f;
}
// Update keys
for (int i = 0; i < ImGuiKey_KeysData_SIZE; i++)
{
ImGuiKeyData* key_data = &io.KeysData[i];
key_data->DownDurationPrev = key_data->DownDuration;
key_data->DownDuration = key_data->Down ? (key_data->DownDuration < 0.0f ? 0.0f : key_data->DownDuration + io.DeltaTime) : -1.0f;
}
// Update keys/input owner (named keys only): one entry per key
for (ImGuiKey key = ImGuiKey_NamedKey_BEGIN; key < ImGuiKey_NamedKey_END; key = (ImGuiKey)(key + 1))
{
ImGuiKeyData* key_data = &io.KeysData[key - ImGuiKey_KeysData_OFFSET];
ImGuiKeyOwnerData* owner_data = &g.KeysOwnerData[key - ImGuiKey_NamedKey_BEGIN];
owner_data->OwnerCurr = owner_data->OwnerNext;
if (!key_data->Down) // Important: ownership is released on the frame after a release. Ensure a 'MouseDown -> CloseWindow -> MouseUp' chain doesn't lead to someone else seeing the MouseUp.
owner_data->OwnerNext = ImGuiKeyOwner_None;
owner_data->LockThisFrame = owner_data->LockUntilRelease = owner_data->LockUntilRelease && key_data->Down; // Clear LockUntilRelease when key is not Down anymore
}
UpdateKeyRoutingTable(&g.KeysRoutingTable);
}
static void ImGui::UpdateMouseInputs()
{
ImGuiContext& g = *GImGui;
ImGuiIO& io = g.IO;
// Round mouse position to avoid spreading non-rounded position (e.g. UpdateManualResize doesn't support them well)
if (IsMousePosValid(&io.MousePos))
io.MousePos = g.MouseLastValidPos = ImFloorSigned(io.MousePos);
// If mouse just appeared or disappeared (usually denoted by -FLT_MAX components) we cancel out movement in MouseDelta
if (IsMousePosValid(&io.MousePos) && IsMousePosValid(&io.MousePosPrev))
io.MouseDelta = io.MousePos - io.MousePosPrev;
else
io.MouseDelta = ImVec2(0.0f, 0.0f);
// If mouse moved we re-enable mouse hovering in case it was disabled by gamepad/keyboard. In theory should use a >0.0f threshold but would need to reset in everywhere we set this to true.
if (io.MouseDelta.x != 0.0f || io.MouseDelta.y != 0.0f)
g.NavDisableMouseHover = false;
io.MousePosPrev = io.MousePos;
for (int i = 0; i < IM_ARRAYSIZE(io.MouseDown); i++)
{
io.MouseClicked[i] = io.MouseDown[i] && io.MouseDownDuration[i] < 0.0f;
io.MouseClickedCount[i] = 0; // Will be filled below
io.MouseReleased[i] = !io.MouseDown[i] && io.MouseDownDuration[i] >= 0.0f;
io.MouseDownDurationPrev[i] = io.MouseDownDuration[i];
io.MouseDownDuration[i] = io.MouseDown[i] ? (io.MouseDownDuration[i] < 0.0f ? 0.0f : io.MouseDownDuration[i] + io.DeltaTime) : -1.0f;
if (io.MouseClicked[i])
{
bool is_repeated_click = false;
if ((float)(g.Time - io.MouseClickedTime[i]) < io.MouseDoubleClickTime)
{
ImVec2 delta_from_click_pos = IsMousePosValid(&io.MousePos) ? (io.MousePos - io.MouseClickedPos[i]) : ImVec2(0.0f, 0.0f);
if (ImLengthSqr(delta_from_click_pos) < io.MouseDoubleClickMaxDist * io.MouseDoubleClickMaxDist)
is_repeated_click = true;
}
if (is_repeated_click)
io.MouseClickedLastCount[i]++;
else
io.MouseClickedLastCount[i] = 1;
io.MouseClickedTime[i] = g.Time;
io.MouseClickedPos[i] = io.MousePos;
io.MouseClickedCount[i] = io.MouseClickedLastCount[i];
io.MouseDragMaxDistanceSqr[i] = 0.0f;
}
else if (io.MouseDown[i])
{
// Maintain the maximum distance we reaching from the initial click position, which is used with dragging threshold
float delta_sqr_click_pos = IsMousePosValid(&io.MousePos) ? ImLengthSqr(io.MousePos - io.MouseClickedPos[i]) : 0.0f;
io.MouseDragMaxDistanceSqr[i] = ImMax(io.MouseDragMaxDistanceSqr[i], delta_sqr_click_pos);
}
// We provide io.MouseDoubleClicked[] as a legacy service
io.MouseDoubleClicked[i] = (io.MouseClickedCount[i] == 2);
// Clicking any mouse button reactivate mouse hovering which may have been deactivated by gamepad/keyboard navigation
if (io.MouseClicked[i])
g.NavDisableMouseHover = false;
}
}
static void LockWheelingWindow(ImGuiWindow* window, float wheel_amount)
{
ImGuiContext& g = *GImGui;