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Internals: Popup related comments. Renamed the misleading internal ClosePopup() function. Added bool* test to BeginPopupModal in demo.

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This commit is contained in:
omar
2018-12-14 16:24:59 +01:00
parent 587506dd57
commit f1c7596409
4 changed files with 40 additions and 28 deletions
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35
imgui.cpp
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@@ -6520,12 +6520,13 @@ void ImGui::ClosePopupsOverWindow(ImGuiWindow* ref_window)
// When popups are stacked, clicking on a lower level popups puts focus back to it and close popups above it.
// Don't close our own child popup windows.
int n = 0;
int popup_count_to_keep = 0;
if (ref_window)
{
for (; n < g.OpenPopupStack.Size; n++)
// Find the highest popup which is a descendant of the reference window (generally reference window = NavWindow)
for (; popup_count_to_keep < g.OpenPopupStack.Size; popup_count_to_keep++)
{
ImGuiPopupRef& popup = g.OpenPopupStack[n];
ImGuiPopupRef& popup = g.OpenPopupStack[popup_count_to_keep];
if (!popup.Window)
continue;
IM_ASSERT((popup.Window->Flags & ImGuiWindowFlags_Popup) != 0);
@@ -6533,15 +6534,19 @@ void ImGui::ClosePopupsOverWindow(ImGuiWindow* ref_window)
continue;
// Trim the stack if popups are not direct descendant of the reference window (which is often the NavWindow)
bool has_focus = false;
for (int m = n; m < g.OpenPopupStack.Size && !has_focus; m++)
has_focus = (g.OpenPopupStack[m].Window && g.OpenPopupStack[m].Window->RootWindow == ref_window->RootWindow);
if (!has_focus)
bool popup_or_descendent_has_focus = false;
for (int m = popup_count_to_keep; m < g.OpenPopupStack.Size && !popup_or_descendent_has_focus; m++)
if (g.OpenPopupStack[m].Window && g.OpenPopupStack[m].Window->RootWindow == ref_window->RootWindow)
popup_or_descendent_has_focus = true;
if (!popup_or_descendent_has_focus)
break;
}
}
if (n < g.OpenPopupStack.Size) // This test is not required but it allows to set a convenient breakpoint on the statement below
ClosePopupToLevel(n);
if (popup_count_to_keep < g.OpenPopupStack.Size) // This test is not required but it allows to set a convenient breakpoint on the statement below
{
//IMGUI_DEBUG_LOG("ClosePopupsOverWindow(%s) -> ClosePopupToLevel(%d)\n", ref_window->Name, popup_count_to_keep);
ClosePopupToLevel(popup_count_to_keep);
}
}
void ImGui::ClosePopupToLevel(int remaining)
@@ -6556,14 +6561,6 @@ void ImGui::ClosePopupToLevel(int remaining)
g.OpenPopupStack.resize(remaining);
}
void ImGui::ClosePopup(ImGuiID id)
{
if (!IsPopupOpen(id))
return;
ImGuiContext& g = *GImGui;
ClosePopupToLevel(g.OpenPopupStack.Size - 1);
}
// Close the popup we have begin-ed into.
void ImGui::CloseCurrentPopup()
{
@@ -6610,6 +6607,8 @@ bool ImGui::BeginPopup(const char* str_id, ImGuiWindowFlags flags)
return BeginPopupEx(g.CurrentWindow->GetID(str_id), flags);
}
// If 'p_open' is specified for a modal popup window, the popup will have a regular close button which will close the popup.
// Note that popup visibility status is owned by imgui (and manipulated with e.g. OpenPopup) so the actual value of *p_open is meaningless here.
bool ImGui::BeginPopupModal(const char* name, bool* p_open, ImGuiWindowFlags flags)
{
ImGuiContext& g = *GImGui;
@@ -6632,7 +6631,7 @@ bool ImGui::BeginPopupModal(const char* name, bool* p_open, ImGuiWindowFlags fla
{
EndPopup();
if (is_open)
ClosePopup(id);
ClosePopupToLevel(g.CurrentPopupStack.Size);
return false;
}
return is_open;