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Misc: NavCalcPreferredRefPos selects between mouse and nav reference position + added sanity assert (merged from viewport branch to minimize branch drift).

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This commit is contained in:
omar
2018-04-25 17:53:24 +02:00
parent 9cbca8c127
commit d317d90610
1 changed files with 9 additions and 7 deletions
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16
imgui.cpp
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@@ -2736,10 +2736,11 @@ void ImGui::NavInitWindow(ImGuiWindow* window, bool force_reinit)
static ImVec2 NavCalcPreferredRefPos()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.NavWindow;
if (!window)
return g.IO.MousePos;
const ImRect& rect_rel = window->NavRectRel[g.NavLayer];
if (g.NavDisableHighlight || !g.NavDisableMouseHover || !g.NavWindow)
return ImFloor(g.IO.MousePos);
// When navigation is active and mouse is disabled, decide on an arbitrary position around the bottom left of the currently navigated item
const ImRect& rect_rel = g.NavWindow->NavRectRel[g.NavLayer];
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()));
ImRect visible_rect = GetViewportRect();
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.
@@ -3073,6 +3074,7 @@ static void ImGui::NavUpdate()
// Set mouse position given our knowledge of the navigated item position from last frame
if ((g.IO.ConfigFlags & ImGuiConfigFlags_NavEnableSetMousePos) && (g.IO.BackendFlags & ImGuiBackendFlags_HasSetMousePos))
{
IM_ASSERT(!g.NavDisableHighlight && g.NavDisableMouseHover);
g.IO.MousePos = g.IO.MousePosPrev = NavCalcPreferredRefPos();
g.IO.WantSetMousePos = true;
}
@@ -4850,7 +4852,7 @@ void ImGui::OpenPopupEx(ImGuiID id)
popup_ref.OpenFrameCount = g.FrameCount;
popup_ref.OpenParentId = parent_window->IDStack.back();
popup_ref.OpenMousePos = g.IO.MousePos;
popup_ref.OpenPopupPos = (!g.NavDisableHighlight && g.NavDisableMouseHover) ? NavCalcPreferredRefPos() : g.IO.MousePos;
popup_ref.OpenPopupPos = NavCalcPreferredRefPos();
//printf("[%05d] OpenPopupEx(0x%08X)\n", g.FrameCount, id);
if (g.OpenPopupStack.Size < current_stack_size + 1)
@@ -5323,14 +5325,14 @@ static ImVec2 FindBestWindowPosForPopup(ImGuiWindow* window)
}
if (window->Flags & ImGuiWindowFlags_Popup)
{
ImRect r_avoid(window->Pos.x - 1, window->Pos.y - 1, window->Pos.x + 1, window->Pos.y + 1);
ImRect r_avoid = ImRect(window->Pos.x - 1, window->Pos.y - 1, window->Pos.x + 1, window->Pos.y + 1);
return FindBestWindowPosForPopupEx(window->Pos, window->Size, &window->AutoPosLastDirection, r_outer, r_avoid);
}
if (window->Flags & ImGuiWindowFlags_Tooltip)
{
// Position tooltip (always follows mouse)
float sc = g.Style.MouseCursorScale;
ImVec2 ref_pos = (!g.NavDisableHighlight && g.NavDisableMouseHover) ? NavCalcPreferredRefPos() : g.IO.MousePos;
ImVec2 ref_pos = NavCalcPreferredRefPos();
ImRect r_avoid;
if (!g.NavDisableHighlight && g.NavDisableMouseHover && !(g.IO.ConfigFlags & ImGuiConfigFlags_NavEnableSetMousePos))
r_avoid = ImRect(ref_pos.x - 16, ref_pos.y - 8, ref_pos.x + 16, ref_pos.y + 8);