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Scrolling: Tweak mouse-wheel locked window timer so it is shorter but also gets reset whenever scrolling again (#2604) + small refactor 

Somehow interesting for (#3795, #4559). sorry this will break PR for 3795 but we got the info.
This commit is contained in:
ocornut 2022-09-28 12:08:40 +02:00
parent 282b2b5afb
commit 80a870a3e5
2 changed files with 10 additions and 12 deletions
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2
docs/CHANGELOG.txt
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@ -103,6 +103,8 @@ Other Changes:
- Popups & Modals: fixed nested Begin() being erroneously input-inhibited. While it is
unusual, you can nest a Begin() inside a popup or modal, it is occasionally useful to
achieve certains things (e.g. some ways to implement suggestion popup #718, #4461).
- Scrolling: Tweak mouse-wheel locked window timer so it is shorter but also gets reset
whenever scrolling again (#2604).
- InputText: added experimental io.ConfigInputTextEnterKeepActive feature to make pressing
Enter keep the input active and select all text.
- InputText: numerical fields automatically accept full-width characters (U+FF01..U+FF5E)

20
imgui.cpp
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@ -953,7 +953,7 @@ static const float NAV_WINDOWING_LIST_APPEAR_DELAY = 0.15f; // Time
// Window resizing from edges (when io.ConfigWindowsResizeFromEdges = true and ImGuiBackendFlags_HasMouseCursors is set in io.BackendFlags by backend)
static const float WINDOWS_HOVER_PADDING = 4.0f; // Extend outside window for hovering/resizing (maxxed with TouchPadding) and inside windows for borders. Affect FindHoveredWindow().
static const float WINDOWS_RESIZE_FROM_EDGES_FEEDBACK_TIMER = 0.04f; // Reduce visual noise by only highlighting the border after a certain time.
static const float WINDOWS_MOUSE_WHEEL_SCROLL_LOCK_TIMER = 2.00f; // Lock scrolled window (so it doesn't pick child windows that are scrolling through) for a certain time, unless mouse moved.
static const float WINDOWS_MOUSE_WHEEL_SCROLL_LOCK_TIMER = 1.50f; // Lock scrolled window (so it doesn't pick child windows that are scrolling through) for a certain time, unless mouse moved.
//-------------------------------------------------------------------------
// [SECTION] FORWARD DECLARATIONS
@ -4265,15 +4265,15 @@ static void ImGui::UpdateMouseInputs()
}
}
static void StartLockWheelingWindow(ImGuiWindow* window)
static void LockWheelingWindow(ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
g.WheelingWindowTimer = window ? WINDOWS_MOUSE_WHEEL_SCROLL_LOCK_TIMER : 0.0f;
if (g.WheelingWindow == window)
return;
IMGUI_DEBUG_LOG_IO("StartLockWheelingWindow() \"%s\"\n", window ? window->Name : "NULL");
IMGUI_DEBUG_LOG_IO("LockWheelingWindow() \"%s\"\n", window ? window->Name : "NULL");
g.WheelingWindow = window;
g.WheelingWindowRefMousePos = g.IO.MousePos;
g.WheelingWindowTimer = WINDOWS_MOUSE_WHEEL_SCROLL_LOCK_TIMER;
}
void ImGui::UpdateMouseWheel()
@ -4287,11 +4287,7 @@ void ImGui::UpdateMouseWheel()
if (IsMousePosValid() && ImLengthSqr(g.IO.MousePos - g.WheelingWindowRefMousePos) > g.IO.MouseDragThreshold * g.IO.MouseDragThreshold)
g.WheelingWindowTimer = 0.0f;
if (g.WheelingWindowTimer <= 0.0f)
{
IMGUI_DEBUG_LOG_IO("UpdateMouseWheel() release WheelingWindow lock \"%s\"\n", g.WheelingWindow->Name);
g.WheelingWindow = NULL;
g.WheelingWindowTimer = 0.0f;
}
LockWheelingWindow(NULL);
}
const bool hovered_id_using_mouse_wheel = (g.HoveredIdPreviousFrame != 0 && g.HoveredIdPreviousFrameUsingMouseWheel);
@ -4311,7 +4307,7 @@ void ImGui::UpdateMouseWheel()
// 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)
{
StartLockWheelingWindow(window);
LockWheelingWindow(window);
const float new_font_scale = ImClamp(window->FontWindowScale + g.IO.MouseWheel * 0.10f, 0.50f, 2.50f);
const float scale = new_font_scale / window->FontWindowScale;
window->FontWindowScale = new_font_scale;
@ -4342,7 +4338,7 @@ void ImGui::UpdateMouseWheel()
// Vertical Mouse Wheel scrolling
if (wheel_y != 0.0f)
{
StartLockWheelingWindow(window);
LockWheelingWindow(window);
while ((window->Flags & ImGuiWindowFlags_ChildWindow) && ((window->ScrollMax.y == 0.0f) || ((window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs))))
window = window->ParentWindow;
if (!(window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs))
@ -4356,7 +4352,7 @@ void ImGui::UpdateMouseWheel()
// Horizontal Mouse Wheel scrolling, or Vertical Mouse Wheel w/ Shift held
if (wheel_x != 0.0f)
{
StartLockWheelingWindow(window);
LockWheelingWindow(window);
while ((window->Flags & ImGuiWindowFlags_ChildWindow) && ((window->ScrollMax.x == 0.0f) || ((window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs))))
window = window->ParentWindow;
if (!(window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(window->Flags & ImGuiWindowFlags_NoMouseInputs))