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Scrolling: Fix mouse wheel axis swap when using SHIFT on macOS (system already does it). (#4010)

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ocornut 2021-04-06 17:51:21 +02:00
parent 5f45047fb6
commit 92b7b1f72b
2 changed files with 11 additions and 4 deletions
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1
docs/CHANGELOG.txt
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@ -41,6 +41,7 @@ Other Changes:
- Scrolling: Fix scroll tracking with e.g. SetScrollHereX/Y() when WindowPadding < ItemSpacing.
- Scrolling: Fix scroll snapping on edge of scroll region when both scrollbars are enabled.
- Scrolling: Fix mouse wheel axis swap when using SHIFT on macOS (system already does it). (#4010)
- Window: Fix IsWindowAppearing() from returning true twice in most cases. (#3982, #1497, #1061)
- Tables: Expose TableSetColumnEnabled() in public api. (#3935)
- TabBar: Fixed mouse reordering with very fast movements (e.g. crossing multiple tabs in a single

14
imgui.cpp
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@ -3738,10 +3738,17 @@ void ImGui::UpdateMouseWheel()
// Mouse wheel scrolling
// If a child window has the ImGuiWindowFlags_NoScrollWithMouse flag, we give a chance to scroll its parent
if (g.IO.KeyCtrl)
return;
// As a standard behavior holding SHIFT while using Vertical Mouse Wheel triggers Horizontal scroll instead
// (we avoid doing it on OSX as it the OS input layer handles this already)
const bool swap_axis = g.IO.KeyShift && !g.IO.ConfigMacOSXBehaviors;
const float wheel_y = swap_axis ? 0.0f : g.IO.MouseWheel;
const float wheel_x = swap_axis ? g.IO.MouseWheel : g.IO.MouseWheelH;
// Vertical Mouse Wheel scrolling
const float wheel_y = (g.IO.MouseWheel != 0.0f && !g.IO.KeyShift) ? g.IO.MouseWheel : 0.0f;
if (wheel_y != 0.0f && !g.IO.KeyCtrl)
if (wheel_y != 0.0f)
{
StartLockWheelingWindow(window);
while ((window->Flags & ImGuiWindowFlags_ChildWindow) && ((window->ScrollMax.y == 0.0f) || ((window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs))))
@ -3755,8 +3762,7 @@ void ImGui::UpdateMouseWheel()
}
// Horizontal Mouse Wheel scrolling, or Vertical Mouse Wheel w/ Shift held
const float wheel_x = (g.IO.MouseWheelH != 0.0f && !g.IO.KeyShift) ? g.IO.MouseWheelH : (g.IO.MouseWheel != 0.0f && g.IO.KeyShift) ? g.IO.MouseWheel : 0.0f;
if (wheel_x != 0.0f && !g.IO.KeyCtrl)
if (wheel_x != 0.0f)
{
StartLockWheelingWindow(window);
while ((window->Flags & ImGuiWindowFlags_ChildWindow) && ((window->ScrollMax.x == 0.0f) || ((window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs))))