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Docking: Fixed multiple simultaneously reappearing window from appearing undocked in their initial frame.

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This commit is contained in:
ocornut 2021-04-12 19:21:49 +02:00
parent 539de4387b
commit e87dd0e65d
2 changed files with 15 additions and 8 deletions
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1
docs/CHANGELOG.txt
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@ -138,6 +138,7 @@ Docking Branch:
- Docking: Dockspace() never draws a background. (#3924)
- Docking: undocking nodes/windows covering most of the monitor max their size down to 90% to ease further manipulations.
- Docking: Fixed restoring of tab order within a dockspace or a split node.
- Docking: Fixed multiple simultaneously reappearing window from appearing undocked in their initial frame.
- Viewports: Hotfix for crash in monitor array access, caused by 4b9bc4902. (#3967)
- Backends, Viewports: GLFW: Add a workaround for stuck keys after closing a GLFW window (#3837).
- Backends, Viewports: Vulkan: Rebuild swapchain on VK_SUBOPTIMAL_KHR. (#3881)

22
imgui.cpp
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@ -13006,6 +13006,12 @@ int ImGui::DockNodeGetTabOrder(ImGuiWindow* window)
return tab ? tab_bar->GetTabOrder(tab) : -1;
}
static void DockNodeHideWindowDuringHostWindowCreation(ImGuiWindow* window)
{
window->Hidden = true;
window->HiddenFramesCanSkipItems = window->Active ? 1 : 2;
}
static void ImGui::DockNodeAddWindow(ImGuiDockNode* node, ImGuiWindow* window, bool add_to_tab_bar)
{
ImGuiContext& g = *GImGui; (void)g;
@ -13018,6 +13024,12 @@ static void ImGui::DockNodeAddWindow(ImGuiDockNode* node, ImGuiWindow* window, b
IM_ASSERT(window->DockNode == NULL || window->DockNodeAsHost == NULL);
IMGUI_DEBUG_LOG_DOCKING("DockNodeAddWindow node 0x%08X window '%s'\n", node->ID, window->Name);
// If more than 2 windows appeared on the same frame leading to the creation of a new hosting window,
// we'll hide windows until the host window is ready. Hide the 1st window after its been output (so it is not visible for one frame).
// We will call DockNodeHideWindowDuringHostWindowCreation() on ourselves in Begin()
if (node->HostWindow == NULL && node->Windows.Size == 1 && node->Windows[0]->WasActive == false)
DockNodeHideWindowDuringHostWindowCreation(node->Windows[0]);
node->Windows.push_back(window);
node->WantHiddenTabBarUpdate = true;
window->DockNode = node;
@ -13025,14 +13037,6 @@ static void ImGui::DockNodeAddWindow(ImGuiDockNode* node, ImGuiWindow* window, b
window->DockIsActive = (node->Windows.Size > 1);
window->DockTabWantClose = false;
// If more than 2 windows appeared on the same frame, we'll create a new hosting DockNode from the point of the second window submission.
// Then we need to hide the first window (after its been output) otherwise it would be visible as a standalone window for one frame.
if (node->HostWindow == NULL && node->Windows.Size == 2 && node->Windows[0]->WasActive == false)
{
node->Windows[0]->Hidden = true;
node->Windows[0]->HiddenFramesCanSkipItems = 1;
}
// When reactivating a node with one or two loose window, the window pos/size/viewport are authoritative over the node storage.
// In particular it is important we init the viewport from the first window so we don't create two viewports and drop one.
if (node->HostWindow == NULL && node->IsFloatingNode())
@ -15427,6 +15431,8 @@ void ImGui::BeginDocked(ImGuiWindow* window, bool* p_open)
{
window->DockIsActive = (node->State == ImGuiDockNodeState_HostWindowHiddenBecauseWindowsAreResizing);
window->DockTabIsVisible = false;
if (node->Windows.Size > 1)
DockNodeHideWindowDuringHostWindowCreation(window);
return;
}