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Begin(): Tidying up some code, should be a no-op.

This commit is contained in:
omar 2017-09-04 13:05:20 +02:00
parent 8fbe8709f9
commit 89cae37b49
1 changed files with 9 additions and 8 deletions
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17
imgui.cpp
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@ -3965,19 +3965,20 @@ bool ImGui::Begin(const char* name, bool* p_open, const ImVec2& size_on_first_us
CheckStacksSize(window, true);
IM_ASSERT(parent_window != NULL || !(flags & ImGuiWindowFlags_ChildWindow));
bool window_was_active = (window->LastFrameActive == current_frame - 1); // Not using !WasActive because the implicit "Debug" window would always toggle off->on
// FIXME: This is currently true if we call Begin() multiple times in a row on a same window.
bool window_activated = (window->LastFrameActive != current_frame - 1); // Not using !WasActive because the implicit "Debug" window would always toggle off->on
if (flags & ImGuiWindowFlags_Popup)
{
ImGuiPopupRef& popup_ref = g.OpenPopupStack[g.CurrentPopupStack.Size];
window_was_active &= (window->PopupId == popup_ref.PopupId);
window_was_active &= (window == popup_ref.Window);
window_activated |= (window->PopupId != popup_ref.PopupId); // We recycle popups so treat window as activated if popup id changed
window_activated |= (window != popup_ref.Window);
popup_ref.Window = window;
g.CurrentPopupStack.push_back(popup_ref);
window->PopupId = popup_ref.PopupId;
}
const bool window_appearing_after_being_hidden = (window->HiddenFrames == 1);
window->Appearing = (!window_was_active || window_appearing_after_being_hidden);
window->Appearing = (window_activated || window_appearing_after_being_hidden);
// Process SetNextWindow***() calls
bool window_pos_set_by_api = false, window_size_set_by_api = false;
@ -4061,7 +4062,7 @@ bool ImGui::Begin(const char* name, bool* p_open, const ImVec2& size_on_first_us
else
PushClipRect(fullscreen_rect.Min, fullscreen_rect.Max, true);
if (!window_was_active)
if (window_activated)
{
// Popup first latch mouse position, will position itself when it appears next frame
window->AutoPosLastDirection = -1;
@ -4095,7 +4096,7 @@ bool ImGui::Begin(const char* name, bool* p_open, const ImVec2& size_on_first_us
// Hide popup/tooltip window when first appearing while we measure size (because we recycle them)
if (window->HiddenFrames > 0)
window->HiddenFrames--;
if ((flags & (ImGuiWindowFlags_Popup | ImGuiWindowFlags_Tooltip)) != 0 && !window_was_active)
if ((flags & (ImGuiWindowFlags_Popup | ImGuiWindowFlags_Tooltip)) != 0 && window_activated)
{
window->HiddenFrames = 1;
if (flags & ImGuiWindowFlags_AlwaysAutoResize)
@ -4389,7 +4390,7 @@ bool ImGui::Begin(const char* name, bool* p_open, const ImVec2& size_on_first_us
window->DC.TreeDepth = 0;
window->DC.StateStorage = &window->StateStorage;
window->DC.GroupStack.resize(0);
window->MenuColumns.Update(3, style.ItemSpacing.x, !window_was_active);
window->MenuColumns.Update(3, style.ItemSpacing.x, window_activated);
if (window->AutoFitFramesX > 0)
window->AutoFitFramesX--;
@ -4397,7 +4398,7 @@ bool ImGui::Begin(const char* name, bool* p_open, const ImVec2& size_on_first_us
window->AutoFitFramesY--;
// New windows appears in front (we need to do that AFTER setting DC.CursorStartPos so our initial navigation reference rectangle can start around there)
if (!window_was_active && !(flags & ImGuiWindowFlags_NoFocusOnAppearing))
if (window_activated && !(flags & ImGuiWindowFlags_NoFocusOnAppearing))
if (!(flags & (ImGuiWindowFlags_ChildWindow|ImGuiWindowFlags_Tooltip)) || (flags & ImGuiWindowFlags_Popup))
FocusWindow(window);