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TabBar: Fixed a crash when using BeginTabBar() recursively (didn't affect docking). (#2371)

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Added ImPool::Contains() helper.
This commit is contained in:
omar
2019-02-22 12:24:27 +01:00
parent f988618ebe
commit 0f83145aa8
3 changed files with 48 additions and 17 deletions
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41
imgui_widgets.cpp
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@ -5905,6 +5905,20 @@ static int IMGUI_CDECL TabBarSortItemComparer(const void* lhs, const void* rhs)
return (b->Index - a->Index);
}
static ImGuiTabBar* GetTabBarFromTabBarRef(const ImGuiTabBarRef& ref)
{
ImGuiContext& g = *GImGui;
return ref.Ptr ? ref.Ptr : g.TabBars.GetByIndex(ref.IndexInMainPool);
}
static ImGuiTabBarRef GetTabBarRefFromTabBar(ImGuiTabBar* tab_bar)
{
ImGuiContext& g = *GImGui;
if (g.TabBars.Contains(tab_bar))
return ImGuiTabBarRef(g.TabBars.GetIndex(tab_bar));
return ImGuiTabBarRef(tab_bar);
}
bool ImGui::BeginTabBar(const char* str_id, ImGuiTabBarFlags flags)
{
ImGuiContext& g = *GImGui;
@ -5929,7 +5943,10 @@ bool ImGui::BeginTabBarEx(ImGuiTabBar* tab_bar, const ImRect& tab_bar_bb, ImG
if ((flags & ImGuiTabBarFlags_DockNode) == 0)
window->IDStack.push_back(tab_bar->ID);
g.CurrentTabBar.push_back(tab_bar);
// Add to stack
g.CurrentTabBarStack.push_back(GetTabBarRefFromTabBar(tab_bar));
g.CurrentTabBar = tab_bar;
if (tab_bar->CurrFrameVisible == g.FrameCount)
{
//IMGUI_DEBUG_LOG("BeginTabBarEx already called this frame\n", g.FrameCount);
@ -5975,8 +5992,8 @@ void ImGui::EndTabBar()
if (window->SkipItems)
return;
IM_ASSERT(!g.CurrentTabBar.empty()); // Mismatched BeginTabBar/EndTabBar
ImGuiTabBar* tab_bar = g.CurrentTabBar.back();
ImGuiTabBar* tab_bar = g.CurrentTabBar;
IM_ASSERT(tab_bar != NULL && "Mismatched BeginTabBar()/EndTabBar()!");
if (tab_bar->WantLayout)
TabBarLayout(tab_bar);
@ -5989,7 +6006,9 @@ void ImGui::EndTabBar()
if ((tab_bar->Flags & ImGuiTabBarFlags_DockNode) == 0)
PopID();
g.CurrentTabBar.pop_back();
g.CurrentTabBarStack.pop_back();
g.CurrentTabBar = g.CurrentTabBarStack.empty() ? NULL : GetTabBarFromTabBarRef(g.CurrentTabBarStack.back());
}
// This is called only once a frame before by the first call to ItemTab()
@ -6356,8 +6375,8 @@ bool ImGui::BeginTabItem(const char* label, bool* p_open, ImGuiTabItemFlags f
if (g.CurrentWindow->SkipItems)
return false;
IM_ASSERT(g.CurrentTabBar.Size > 0 && "Needs to be called between BeginTabBar() and EndTabBar()!");
ImGuiTabBar* tab_bar = g.CurrentTabBar.back();
ImGuiTabBar* tab_bar = g.CurrentTabBar;
IM_ASSERT(tab_bar && "Needs to be called between BeginTabBar() and EndTabBar()!");
bool ret = TabItemEx(tab_bar, label, p_open, flags);
if (ret && !(flags & ImGuiTabItemFlags_NoPushId))
{
@ -6373,9 +6392,9 @@ void ImGui::EndTabItem()
if (g.CurrentWindow->SkipItems)
return;
IM_ASSERT(g.CurrentTabBar.Size > 0 && "Needs to be called between BeginTabBar() and EndTabBar()!");
ImGuiTabBar* tab_bar = g.CurrentTabBar.back();
IM_ASSERT(tab_bar->LastTabItemIdx >= 0 && "Needs to be called between BeginTabItem() and EndTabItem()");
ImGuiTabBar* tab_bar = g.CurrentTabBar;
IM_ASSERT(tab_bar != NULL && "Needs to be called between BeginTabBar() and EndTabBar()!");
IM_ASSERT(tab_bar->LastTabItemIdx >= 0);
ImGuiTabItem* tab = &tab_bar->Tabs[tab_bar->LastTabItemIdx];
if (!(tab->Flags & ImGuiTabItemFlags_NoPushId))
g.CurrentWindow->IDStack.pop_back();
@ -6575,10 +6594,10 @@ bool ImGui::TabItemEx(ImGuiTabBar* tab_bar, const char* label, bool* p_open,
void ImGui::SetTabItemClosed(const char* label)
{
ImGuiContext& g = *GImGui;
bool is_within_manual_tab_bar = (g.CurrentTabBar.Size > 0) && !(g.CurrentTabBar.back()->Flags & ImGuiTabBarFlags_DockNode);
bool is_within_manual_tab_bar = g.CurrentTabBar && !(g.CurrentTabBar->Flags & ImGuiTabBarFlags_DockNode);
if (is_within_manual_tab_bar)
{
ImGuiTabBar* tab_bar = g.CurrentTabBar.back();
ImGuiTabBar* tab_bar = g.CurrentTabBar;
IM_ASSERT(tab_bar->WantLayout); // Needs to be called AFTER BeginTabBar() and BEFORE the first call to BeginTabItem()
ImGuiID tab_id = TabBarCalcTabID(tab_bar, label);
TabBarRemoveTab(tab_bar, tab_id);