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Internals: Begin: update ->Hidden flags only on first begin of the frame. (ignore whitespace to see simple diff)

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# Conflicts:
#	imgui.cpp
This commit is contained in:
ocornut 2020-09-01 15:24:24 +02:00
parent 34077c0140
commit fc625d249f
1 changed files with 42 additions and 37 deletions
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7
imgui.cpp
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@ -5602,6 +5602,7 @@ void ImGui::RenderWindowDecorations(ImGuiWindow* window, const ImRect& title_bar
ImGuiWindowFlags flags = window->Flags;
// Ensure that ScrollBar doesn't read last frame's SkipItems
IM_ASSERT(window->BeginCount == 0);
window->SkipItems = false;
// Draw window + handle manual resize
@ -6626,6 +6627,9 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
window->BeginCount++;
g.NextWindowData.ClearFlags();
// Update visibility
if (first_begin_of_the_frame)
{
// When we are about to select this tab (which will only be visible on the _next frame_), flag it with a non-zero HiddenFramesCannotSkipItems.
// This will have the important effect of actually returning true in Begin() and not setting SkipItems, allowing an earlier submission of the window contents.
// This is analogous to regular windows being hidden from one frame.
@ -6667,8 +6671,9 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
if (window->AutoFitFramesX <= 0 && window->AutoFitFramesY <= 0 && window->HiddenFramesCannotSkipItems <= 0)
skip_items = true;
window->SkipItems = skip_items;
}
return !skip_items;
return !window->SkipItems;
}
void ImGui::End()