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Scrolling, Inputs: using mouse wheel to scroll takes and keeps ownership of the corresponding keys while a wheeling window is locked.

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Ref 4448d975d. (#2604, #3795)
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ocornut
2026-05-07 20:45:49 +02:00
parent 163b8670c8
commit 02ccd9f348
2 changed files with 13 additions and 5 deletions
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2
docs/CHANGELOG.txt
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@@ -111,6 +111,8 @@ Other Changes:
- Detect and report error when calling End() instead of EndPopup() on a popup. (#9351)
- Child windows with only ImGuiChildFlags_AutoResizeY flag keep using the proportional
default ItemWidth. (#9355)
- Using mouse wheel to scroll takes and keeps ownership of the corresponding keys
(ImGuiKey_MouseWheelX/Y) while a wheeling window is locked. (#2604, #3795)
- InputInt, InputFloat, InputScalar: reinstated ImGuiInputTextFlags_EnterReturnsTrue
support which was removed in 1.91.4. (#8665, #9299, #8065, #3946, #6284, #9117)
- Fixed the fact that it didn't return true when validating same value.

16
imgui.cpp
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@@ -10364,15 +10364,21 @@ void ImGui::UpdateMouseWheel()
LockWheelingWindow(NULL, 0.0f);
}
ImVec2 wheel;
wheel.x = TestKeyOwner(ImGuiKey_MouseWheelX, ImGuiKeyOwner_NoOwner) ? g.IO.MouseWheelH : 0.0f;
wheel.y = TestKeyOwner(ImGuiKey_MouseWheelY, ImGuiKeyOwner_NoOwner) ? g.IO.MouseWheel : 0.0f;
//IMGUI_DEBUG_LOG("MouseWheel X:%.3f Y:%.3f\n", wheel_x, wheel_y);
ImGuiWindow* mouse_window = g.WheelingWindow ? g.WheelingWindow : g.HoveredWindow;
if (!mouse_window || mouse_window->Collapsed)
return;
ImGuiID owner_id = mouse_window->ID;
ImVec2 wheel;
wheel.x = TestKeyOwner(ImGuiKey_MouseWheelX, owner_id) ? g.IO.MouseWheelH : 0.0f;
wheel.y = TestKeyOwner(ImGuiKey_MouseWheelY, owner_id) ? g.IO.MouseWheel : 0.0f;
//IMGUI_DEBUG_LOG("MouseWheel X:%.3f Y:%.3f\n", wheel_x, wheel_y);
if (g.WheelingWindow != NULL)
{
SetKeyOwner(ImGuiKey_MouseWheelX, owner_id);
SetKeyOwner(ImGuiKey_MouseWheelY, owner_id);
}
// Zoom / Scale window
// FIXME-OBSOLETE: This is an old feature, it still works but pretty much nobody is using it and may be best redesigned.
if (wheel.y != 0.0f && g.IO.KeyCtrl && g.IO.FontAllowUserScaling)