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Comments/tweaks on ItemAdd()

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ocornut 2016-05-01 11:46:49 +02:00
parent bfb2dc2290
commit 60d6c6d0e8
1 changed files with 4 additions and 11 deletions
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15
imgui.cpp
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@ -1721,29 +1721,23 @@ bool ImGui::ItemAdd(const ImRect& bb, const ImGuiID* id)
ImGuiWindow* window = GetCurrentWindow();
window->DC.LastItemID = id ? *id : 0;
window->DC.LastItemRect = bb;
window->DC.LastItemHoveredAndUsable = false;
window->DC.LastItemHoveredRect = false;
if (IsClippedEx(bb, id, false))
{
window->DC.LastItemHoveredAndUsable = window->DC.LastItemHoveredRect = false;
return false;
}
// This is a sensible default, but widgets are free to override it after calling ItemAdd()
ImGuiState& g = *GImGui;
if (IsMouseHoveringRect(bb.Min, bb.Max))
{
// Matching the behavior of IsHovered() but ignore if ActiveId==window->MoveID (we clicked on the window background)
// Matching the behavior of IsHovered() but allow if ActiveId==window->MoveID (we clicked on the window background)
// So that clicking on items with no active id such as Text() still returns true with IsItemHovered()
window->DC.LastItemHoveredRect = true;
window->DC.LastItemHoveredAndUsable = false;
if (g.HoveredRootWindow == window->RootWindow)
if (g.ActiveId == 0 || (id && g.ActiveId == *id) || g.ActiveIdAllowOverlap || (g.ActiveId == window->MoveID))
if (IsWindowContentHoverable(window))
window->DC.LastItemHoveredAndUsable = true;
}
else
{
window->DC.LastItemHoveredAndUsable = window->DC.LastItemHoveredRect = false;
}
return true;
}
@ -1754,14 +1748,13 @@ bool ImGui::IsClippedEx(const ImRect& bb, const ImGuiID* id, bool clip_even_when
ImGuiWindow* window = GetCurrentWindowRead();
if (!bb.Overlaps(window->ClipRect))
{
if (!id || *id != GImGui->ActiveId)
if (clip_even_when_logged || !g.LogEnabled)
return true;
}
return false;
}
// NB: This is an internal helper. The user-facing IsItemHovered() is using data emitted from ItemAdd(), with a slightly different logic.
bool ImGui::IsHovered(const ImRect& bb, ImGuiID id, bool flatten_childs)
{
ImGuiState& g = *GImGui;