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Internals: ParentWindow is now NULL for non-child windows and means what everyone expects.

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This commit is contained in:
omar 2017-12-12 00:48:28 +01:00
parent f42d7b89e2
commit c65124f415
2 changed files with 8 additions and 7 deletions
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13
imgui.cpp
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@ -4338,7 +4338,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
SetWindowConditionAllowFlags(window, ImGuiCond_Appearing, true); SetWindowConditionAllowFlags(window, ImGuiCond_Appearing, true);
// Parent window is latched only on the first call to Begin() of the frame, so further append-calls can be done from a different window stack // Parent window is latched only on the first call to Begin() of the frame, so further append-calls can be done from a different window stack
ImGuiWindow* parent_window = first_begin_of_the_frame ? (!g.CurrentWindowStack.empty() ? g.CurrentWindowStack.back() : NULL) : window->ParentWindow; ImGuiWindow* parent_window = first_begin_of_the_frame ? ((flags & ImGuiWindowFlags_ChildWindow) && !g.CurrentWindowStack.empty() ? g.CurrentWindowStack.back() : NULL) : window->ParentWindow;
IM_ASSERT(parent_window != NULL || !(flags & ImGuiWindowFlags_ChildWindow)); IM_ASSERT(parent_window != NULL || !(flags & ImGuiWindowFlags_ChildWindow));
// Add to stack // Add to stack
@ -4409,8 +4409,8 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
{ {
// Initialize // Initialize
window->ParentWindow = parent_window; window->ParentWindow = parent_window;
window->RootWindow = !(flags & ImGuiWindowFlags_ChildWindow) ? window : parent_window->RootWindow; window->RootWindow = ((flags & ImGuiWindowFlags_ChildWindow) && parent_window) ? parent_window->RootWindow : window;
window->RootNonPopupWindow = !(flags & (ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_Popup)) || (flags & ImGuiWindowFlags_Modal) ? window : parent_window->RootNonPopupWindow; // Used to display TitleBgActive color and for selecting which window to use for NavWindowing window->RootNonPopupWindow = !(flags & (ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_Popup)) || (flags & ImGuiWindowFlags_Modal) || (parent_window == NULL) ? window : parent_window->RootNonPopupWindow; // Used to display TitleBgActive color and for selecting which window to use for NavWindowing
//window->RootNavWindow = window; //window->RootNavWindow = window;
//while (window->RootNavWindow->Flags & ImGuiWindowFlags_NavFlattened) //while (window->RootNavWindow->Flags & ImGuiWindowFlags_NavFlattened)
// window->RootNavWindow = window->RootNavWindow->ParentWindow; // window->RootNavWindow = window->RootNavWindow->ParentWindow;
@ -4556,11 +4556,12 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
// This is how we end up with child menus appearing (most-commonly) on the right of the parent menu. // This is how we end up with child menus appearing (most-commonly) on the right of the parent menu.
IM_ASSERT(window_pos_set_by_api); IM_ASSERT(window_pos_set_by_api);
float horizontal_overlap = style.ItemSpacing.x; // We want some overlap to convey the relative depth of each popup (currently the amount of overlap it is hard-coded to style.ItemSpacing.x, may need to introduce another style value). float horizontal_overlap = style.ItemSpacing.x; // We want some overlap to convey the relative depth of each popup (currently the amount of overlap it is hard-coded to style.ItemSpacing.x, may need to introduce another style value).
ImGuiWindow* parent_menu = g.CurrentWindowStack[g.CurrentWindowStack.Size - 2];
ImRect rect_to_avoid; ImRect rect_to_avoid;
if (parent_window->DC.MenuBarAppending) if (parent_menu->DC.MenuBarAppending)
rect_to_avoid = ImRect(-FLT_MAX, parent_window->Pos.y + parent_window->TitleBarHeight(), FLT_MAX, parent_window->Pos.y + parent_window->TitleBarHeight() + parent_window->MenuBarHeight()); rect_to_avoid = ImRect(-FLT_MAX, parent_menu->Pos.y + parent_menu->TitleBarHeight(), FLT_MAX, parent_menu->Pos.y + parent_menu->TitleBarHeight() + parent_menu->MenuBarHeight());
else else
rect_to_avoid = ImRect(parent_window->Pos.x + horizontal_overlap, -FLT_MAX, parent_window->Pos.x + parent_window->Size.x - horizontal_overlap - parent_window->ScrollbarSizes.x, FLT_MAX); rect_to_avoid = ImRect(parent_menu->Pos.x + horizontal_overlap, -FLT_MAX, parent_menu->Pos.x + parent_menu->Size.x - horizontal_overlap - parent_menu->ScrollbarSizes.x, FLT_MAX);
window->PosFloat = FindBestWindowPosForPopup(window->PosFloat, window->Size, &window->AutoPosLastDirection, rect_to_avoid); window->PosFloat = FindBestWindowPosForPopup(window->PosFloat, window->Size, &window->AutoPosLastDirection, rect_to_avoid);
} }
else if ((flags & ImGuiWindowFlags_Popup) != 0 && !window_pos_set_by_api && window_just_appearing_after_hidden_for_resize) else if ((flags & ImGuiWindowFlags_Popup) != 0 && !window_pos_set_by_api && window_just_appearing_after_hidden_for_resize)

2
imgui_internal.h
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@ -746,7 +746,7 @@ struct IMGUI_API ImGuiWindow
ImGuiStorage StateStorage; ImGuiStorage StateStorage;
float FontWindowScale; // Scale multiplier per-window float FontWindowScale; // Scale multiplier per-window
ImDrawList* DrawList; ImDrawList* DrawList;
ImGuiWindow* ParentWindow; // Immediate parent in the window stack *regardless* of whether this window is a child window or not) ImGuiWindow* ParentWindow; // If we are a child window, this is pointing to our parent.
ImGuiWindow* RootWindow; // Generally point to ourself. If we are a child window, this is pointing to the first non-child parent window. ImGuiWindow* RootWindow; // Generally point to ourself. If we are a child window, this is pointing to the first non-child parent window.
ImGuiWindow* RootNonPopupWindow; // Generally point to ourself. Used to display TitleBgActive color and for selecting which window to use for NavWindowing ImGuiWindow* RootNonPopupWindow; // Generally point to ourself. Used to display TitleBgActive color and for selecting which window to use for NavWindowing