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overlay: tooltip static position and fix overlap #883

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Merged
bicarus-dev merged 1 commit into from
Aug 21, 2026
Merged

overlay: tooltip static position and fix overlap #883

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25 changes: 25 additions & 0 deletions src/spice2x/overlay/imgui/extensions.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -21,12 +21,36 @@ namespace ImGui {
base.y + overlay::apply_scaling(1.0f));
}

// Tooltips follow the mouse and only avoid a small box around the cursor, so
// they can cover the option they describe. Anchor to the hovered item and let
// ImGui's popup placer pick a side that clears it and stays on-screen. The
// size is taken from the tooltip window, so it covers any content.
static void SetNextTooltipPos() {
ImGuiContext& g = *GImGui;
char name[32];
ImFormatString(name, IM_COUNTOF(name), "##Tooltip_%02d", g.TooltipOverrideCount);
ImGuiWindow *tooltip = ImGui::FindWindowByName(name);
if (tooltip == nullptr || !tooltip->WasActive) {
// Reopened tooltips are hidden for one frame while measuring size.
return;
}
const ImRect item(ImGui::GetItemRectMin(), ImGui::GetItemRectMax());
ImGui::SetNextWindowPos(ImGui::FindBestWindowPosForPopupEx(
item.Min,
ImGui::CalcWindowNextAutoFitSize(tooltip),
&tooltip->AutoPosLastDirection,
ImGui::GetPopupAllowedExtentRect(tooltip),
item,
ImGuiPopupPositionPolicy_Tooltip));
}

void HelpTooltip(const char* desc) {
ImGui::PushStyleColor(ImGuiCol_Border, bg);
ImGui::PushStyleColor(ImGuiCol_BorderShadow, bg);
ImGui::PushStyleColor(ImGuiCol_PopupBg, bg);
ImGui::PushStyleColor(ImGuiCol_Text, fg);

SetNextTooltipPos();
ImGui::BeginTooltip();
ImGui::PushTextWrapPos(ImGui::GetFontSize() * 35.0f);
ImGui::TextUnformatted(desc);
Expand All @@ -49,6 +73,7 @@ namespace ImGui {
ImGui::PushStyleColor(ImGuiCol_PopupBg, bg);
ImGui::PushStyleColor(ImGuiCol_Text, fg);

SetNextTooltipPos();
ImGui::BeginTooltip();
ImGui::PushTextWrapPos(ImGui::GetFontSize() * 35.0f);
if (desc && desc[0]) {
Expand Down