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Detect precise (touchpad) scroll events.

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Currently the wheel axis Y change has little impact, as the zoom in/out logic
assumes wheel events are discrete.
This commit is contained in:
Bartosz Taudul 2022-12-19 21:26:59 +01:00
parent ac87b05dcb
commit 3b58f5596d
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GPG Key ID: B7FE2008B7575DF3
1 changed files with 8 additions and 0 deletions
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8
profiler/src/BackendWayland.cpp
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@ -64,6 +64,7 @@ static uint64_t s_time;
static wl_fixed_t s_wheelAxisX, s_wheelAxisY; static wl_fixed_t s_wheelAxisX, s_wheelAxisY;
static bool s_wheel; static bool s_wheel;
static bool s_wheelPrecise;
static void PointerEnter( void*, struct wl_pointer* pointer, uint32_t serial, struct wl_surface* surf, wl_fixed_t sx, wl_fixed_t sy ) static void PointerEnter( void*, struct wl_pointer* pointer, uint32_t serial, struct wl_surface* surf, wl_fixed_t sx, wl_fixed_t sy )
{ {
@ -113,6 +114,7 @@ static void PointerAxis( void*, struct wl_pointer* pointer, uint32_t time, uint3
static void PointerAxisSource( void*, struct wl_pointer* pointer, uint32_t source ) static void PointerAxisSource( void*, struct wl_pointer* pointer, uint32_t source )
{ {
if( source == WL_POINTER_AXIS_SOURCE_FINGER ) s_wheelPrecise = true;
} }
static void PointerAxisStop( void*, struct wl_pointer* pointer, uint32_t time, uint32_t axis ) static void PointerAxisStop( void*, struct wl_pointer* pointer, uint32_t time, uint32_t axis )
@ -128,6 +130,12 @@ static void PointerFrame( void*, struct wl_pointer* pointer )
if( s_wheel ) if( s_wheel )
{ {
s_wheel = false; s_wheel = false;
if( s_wheelPrecise )
{
s_wheelAxisX /= 8;
s_wheelAxisY /= 8;
s_wheelPrecise = false;
}
ImGuiIO& io = ImGui::GetIO(); ImGuiIO& io = ImGui::GetIO();
io.AddMouseWheelEvent( wl_fixed_to_double( s_wheelAxisX * s_maxScale ), wl_fixed_to_double( s_wheelAxisY * s_maxScale ) ); io.AddMouseWheelEvent( wl_fixed_to_double( s_wheelAxisX * s_maxScale ), wl_fixed_to_double( s_wheelAxisY * s_maxScale ) );
s_wheelAxisX = s_wheelAxisY = 0; s_wheelAxisX = s_wheelAxisY = 0;