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Internals: Extracted part of Begin into UpdateWindowParentAndRootLinks(). Useful to call to keep state updated immediately (namely useful for docking) + small tidying up of imgui_internal.h

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This commit is contained in:
omar
2018-07-26 23:45:48 +02:00
parent 84183f5bb6
commit 63df9d6311
2 changed files with 37 additions and 25 deletions
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24
imgui.cpp
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@ -6178,6 +6178,18 @@ static void ImGui::UpdateManualResize(ImGuiWindow* window, const ImVec2& size_au
window->Size = window->SizeFull;
}
void ImGui::UpdateWindowParentAndRootLinks(ImGuiWindow* window, ImGuiWindowFlags flags, ImGuiWindow* parent_window)
{
window->ParentWindow = parent_window;
window->RootWindow = window->RootWindowForTitleBarHighlight = window->RootWindowForNav = window;
if (parent_window && (flags & ImGuiWindowFlags_ChildWindow) && !(flags & ImGuiWindowFlags_Tooltip))
window->RootWindow = parent_window->RootWindow;
if (parent_window && !(flags & ImGuiWindowFlags_Modal) && (flags & (ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_Popup)))
window->RootWindowForTitleBarHighlight = parent_window->RootWindowForTitleBarHighlight;
while (window->RootWindowForNav->Flags & ImGuiWindowFlags_NavFlattened)
window->RootWindowForNav = window->RootWindowForNav->ParentWindow;
}
// Push a new ImGui window to add widgets to.
// - A default window called "Debug" is automatically stacked at the beginning of every frame so you can use widgets without explicitly calling a Begin/End pair.
// - Begin/End can be called multiple times during the frame with the same window name to append content.
@ -6296,17 +6308,9 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
// When reusing window again multiple times a frame, just append content (don't need to setup again)
if (first_begin_of_the_frame)
{
const bool window_is_child_tooltip = (flags & ImGuiWindowFlags_ChildWindow) && (flags & ImGuiWindowFlags_Tooltip); // FIXME-WIP: Undocumented behavior of Child+Tooltip for pinned tooltip (#1345)
// Initialize
window->ParentWindow = parent_window;
window->RootWindow = window->RootWindowForTitleBarHighlight = window->RootWindowForNav = window;
if (parent_window && (flags & ImGuiWindowFlags_ChildWindow) && !window_is_child_tooltip)
window->RootWindow = parent_window->RootWindow;
if (parent_window && !(flags & ImGuiWindowFlags_Modal) && (flags & (ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_Popup)))
window->RootWindowForTitleBarHighlight = parent_window->RootWindowForTitleBarHighlight;
while (window->RootWindowForNav->Flags & ImGuiWindowFlags_NavFlattened)
window->RootWindowForNav = window->RootWindowForNav->ParentWindow;
const bool window_is_child_tooltip = (flags & ImGuiWindowFlags_ChildWindow) && (flags & ImGuiWindowFlags_Tooltip); // FIXME-WIP: Undocumented behavior of Child+Tooltip for pinned tooltip (#1345)
UpdateWindowParentAndRootLinks(window, flags, parent_window);
window->Active = true;
window->BeginOrderWithinParent = 0;