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Nav: Shuffled code in ItemAdd() so that NavProcessItem() may have access to LastItemId (will be required by tabbing)

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This commit is contained in:
omar 2017-10-06 10:17:01 -07:00
parent e12cfa9dfd
commit f451785c9e
1 changed files with 9 additions and 5 deletions
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14
imgui.cpp
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@ -2113,7 +2113,7 @@ static bool NavScoreItem(ImRect cand)
}
else
{
// Degenerate case: two overlapping buttons with same center, break ties using order
// Degenerate case: two overlapping buttons with same center, break ties arbitrarily (note that LastItemId here is really the _previous_ item order, but it doesn't matter)
quadrant = (window->DC.LastItemId < g.NavId) ? ImGuiDir_Left : ImGuiDir_Right;
}
@ -2190,6 +2190,7 @@ static void NavProcessItem(ImGuiWindow* window, const ImRect& nav_bb, const ImGu
}
}
// Scoring for navigation
bool new_best = false;
#if IMGUI_DEBUG_NAV
// [DEBUG] Score items at all times
@ -2224,10 +2225,6 @@ bool ImGui::ItemAdd(const ImRect& bb, const ImGuiID* id, const ImRect* nav_bb_ar
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
const bool is_clipped = IsClippedEx(bb, id, false);
window->DC.LastItemId = id ? *id : 0;
window->DC.LastItemRect = bb;
window->DC.LastItemRectHoveredRect = false;
// Navigation processing runs prior to clipping early-out
// (a) So that NavInitDefaultRequest can be honored, for newly opened windows to select a default widget
@ -2242,8 +2239,15 @@ bool ImGui::ItemAdd(const ImRect& bb, const ImGuiID* id, const ImRect* nav_bb_ar
NavProcessItem(window, nav_bb_arg ? *nav_bb_arg : bb, *id);
}
// Clipping test + store basic information about the current item.
const bool is_clipped = IsClippedEx(bb, id, false);
window->DC.LastItemId = id ? *id : 0;
window->DC.LastItemRect = bb;
if (is_clipped)
{
window->DC.LastItemRectHoveredRect = false;
return false;
}
//if (g.IO.KeyAlt) window->DrawList->AddRect(bb.Min, bb.Max, IM_COL32(255,255,0,120)); // [DEBUG]
// We need to calculate this now to take account of the current clipping rectangle (as items like Selectable may change them)