mirror of https://github.com/ocornut/imgui
Misc: NavCalcPreferredRefPos selects between mouse and nav reference position + added sanity assert (merged from viewport branch to minimize branch drift).
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9cbca8c127
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16
imgui.cpp
16
imgui.cpp
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@ -2736,10 +2736,11 @@ void ImGui::NavInitWindow(ImGuiWindow* window, bool force_reinit)
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static ImVec2 NavCalcPreferredRefPos()
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{
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ImGuiContext& g = *GImGui;
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ImGuiWindow* window = g.NavWindow;
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if (!window)
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return g.IO.MousePos;
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const ImRect& rect_rel = window->NavRectRel[g.NavLayer];
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if (g.NavDisableHighlight || !g.NavDisableMouseHover || !g.NavWindow)
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return ImFloor(g.IO.MousePos);
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// When navigation is active and mouse is disabled, decide on an arbitrary position around the bottom left of the currently navigated item
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const ImRect& rect_rel = g.NavWindow->NavRectRel[g.NavLayer];
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ImVec2 pos = g.NavWindow->Pos + ImVec2(rect_rel.Min.x + ImMin(g.Style.FramePadding.x*4, rect_rel.GetWidth()), rect_rel.Max.y - ImMin(g.Style.FramePadding.y, rect_rel.GetHeight()));
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ImRect visible_rect = GetViewportRect();
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return ImFloor(ImClamp(pos, visible_rect.Min, visible_rect.Max)); // ImFloor() is important because non-integer mouse position application in back-end might be lossy and result in undesirable non-zero delta.
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@ -3073,6 +3074,7 @@ static void ImGui::NavUpdate()
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// Set mouse position given our knowledge of the navigated item position from last frame
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if ((g.IO.ConfigFlags & ImGuiConfigFlags_NavEnableSetMousePos) && (g.IO.BackendFlags & ImGuiBackendFlags_HasSetMousePos))
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{
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IM_ASSERT(!g.NavDisableHighlight && g.NavDisableMouseHover);
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g.IO.MousePos = g.IO.MousePosPrev = NavCalcPreferredRefPos();
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g.IO.WantSetMousePos = true;
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}
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@ -4850,7 +4852,7 @@ void ImGui::OpenPopupEx(ImGuiID id)
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popup_ref.OpenFrameCount = g.FrameCount;
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popup_ref.OpenParentId = parent_window->IDStack.back();
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popup_ref.OpenMousePos = g.IO.MousePos;
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popup_ref.OpenPopupPos = (!g.NavDisableHighlight && g.NavDisableMouseHover) ? NavCalcPreferredRefPos() : g.IO.MousePos;
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popup_ref.OpenPopupPos = NavCalcPreferredRefPos();
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//printf("[%05d] OpenPopupEx(0x%08X)\n", g.FrameCount, id);
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if (g.OpenPopupStack.Size < current_stack_size + 1)
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@ -5323,14 +5325,14 @@ static ImVec2 FindBestWindowPosForPopup(ImGuiWindow* window)
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}
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if (window->Flags & ImGuiWindowFlags_Popup)
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{
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ImRect r_avoid(window->Pos.x - 1, window->Pos.y - 1, window->Pos.x + 1, window->Pos.y + 1);
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ImRect r_avoid = ImRect(window->Pos.x - 1, window->Pos.y - 1, window->Pos.x + 1, window->Pos.y + 1);
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return FindBestWindowPosForPopupEx(window->Pos, window->Size, &window->AutoPosLastDirection, r_outer, r_avoid);
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}
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if (window->Flags & ImGuiWindowFlags_Tooltip)
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{
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// Position tooltip (always follows mouse)
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float sc = g.Style.MouseCursorScale;
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ImVec2 ref_pos = (!g.NavDisableHighlight && g.NavDisableMouseHover) ? NavCalcPreferredRefPos() : g.IO.MousePos;
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ImVec2 ref_pos = NavCalcPreferredRefPos();
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ImRect r_avoid;
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if (!g.NavDisableHighlight && g.NavDisableMouseHover && !(g.IO.ConfigFlags & ImGuiConfigFlags_NavEnableSetMousePos))
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r_avoid = ImRect(ref_pos.x - 16, ref_pos.y - 8, ref_pos.x + 16, ref_pos.y + 8);
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