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Fix touch-control support for mobile #37

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Fix touch-control support for mobile #37

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15 changes: 15 additions & 0 deletions Source/ImGui/Private/SImGuiOverlay.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -156,6 +156,8 @@ class FImGuiInputProcessor : public IInputProcessor

ImGuiIO& IO = ImGui::GetIO();

IO.AddMouseSourceEvent(Event.IsTouchEvent() ? ImGuiMouseSource_TouchScreen : ImGuiMouseSource_Mouse);

if (SlateApp.HasAnyMouseCaptor())
{
IO.AddMousePosEvent(-FLT_MAX, -FLT_MAX);
Expand Down Expand Up @@ -185,6 +187,17 @@ class FImGuiInputProcessor : public IInputProcessor

ImGuiIO& IO = ImGui::GetIO();

if (Event.IsTouchEvent())
{
IO.AddMouseSourceEvent(ImGuiMouseSource_TouchScreen);
const FVector2f Position = Event.GetScreenSpacePosition();
IO.AddMousePosEvent(Position.X, Position.Y);
}
else
{
IO.AddMouseSourceEvent(ImGuiMouseSource_Mouse);
}

const FKey Button = Event.GetEffectingButton();
if (Button == EKeys::LeftMouseButton)
{
Expand Down Expand Up @@ -213,6 +226,8 @@ class FImGuiInputProcessor : public IInputProcessor

ImGuiIO& IO = ImGui::GetIO();

IO.AddMouseSourceEvent(Event.IsTouchEvent() ? ImGuiMouseSource_TouchScreen : ImGuiMouseSource_Mouse);

const FKey Button = Event.GetEffectingButton();
if (Button == EKeys::LeftMouseButton)
{
Expand Down