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Docking: added comments. added experimental TabItemFlagsOverrideSet to ImGuiWindowClass.

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(Could probably do something similar with TabBarFlagsOverrideSet+Clear for #2700 later.)
This commit is contained in:
ocornut
2021-01-18 12:32:26 +01:00
parent 388ca563db
commit 9e4956d86b
3 changed files with 51 additions and 3 deletions
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49
imgui.cpp
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@ -11930,6 +11930,50 @@ void ImGui::DestroyPlatformWindows()
// Docking: Settings
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// Typical Docking call flow: (root level is generally public API):
//-----------------------------------------------------------------------------
// - NewFrame() new dear imgui frame
// | DockContextUpdateUndocking() - process queued undocking requests
// | - DockContextProcessUndockWindow() - process one window undocking request
// | - DockContextProcessUndockNode() - process one whole node undocking request
// | DockContextUpdateDocking() - process queue docking requests, create floating dock nodes
// | - update g.HoveredDockNode - [debug] update node hovered by mouse
// | - DockContextProcessDock() - process one docking request
// | - DockNodeUpdate()
// | - DockNodeUpdateForRootNode()
// | - DockNodeUpdateVisibleFlagAndInactiveChilds()
// | - DockNodeFindInfo()
// | - destroy unused node or tab bar
// | - create dock node host window
// | - Begin() etc.
// | - DockNodeStartMouseMovingWindow()
// | - DockNodeTreeUpdatePosSize()
// | - DockNodeTreeUpdateSplitter()
// | - draw node background
// | - DockNodeUpdateTabBar() - create/update tab bar for a docking node
// | - DockNodeAddTabBar()
// | - DockNodeUpdateWindowMenu()
// | - DockNodeCalcTabBarLayout()
// | - BeginTabBarEx()
// | - TabItemEx() calls
// | - EndTabBar()
// | - BeginDockableDragDropTarget()
// | - DockNodeUpdate() - recurse into child nodes...
//-----------------------------------------------------------------------------
// - DockSpace() user submit a dockspace into a window
// | Begin(Child) - create a child window
// | DockNodeUpdate() - call main dock node update function
// | End(Child)
// | ItemSize()
//-----------------------------------------------------------------------------
// - Begin()
// | BeginDocked()
// | BeginDockableDragDropSource()
// | BeginDockableDragDropTarget()
// | - DockNodePreviewDockRender()
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// Docking: Internal Types
//-----------------------------------------------------------------------------
@ -12191,7 +12235,9 @@ void ImGui::DockContextUpdateDocking(ImGuiContext* ctx)
if (!(g.IO.ConfigFlags & ImGuiConfigFlags_DockingEnable))
return;
// Store hovered dock node. We could in theory use DockNodeTreeFindVisibleNodeByPos() on the root host dock node, but using ->DockNode is a good shortcut.
// [DEBUG] Store hovered dock node.
// We could in theory use DockNodeTreeFindVisibleNodeByPos() on the root host dock node, but using ->DockNode is a good shortcut.
// Note this is mostly a debug thing and isn't actually used for docking target, because docking involve more detailed filtering.
g.HoveredDockNode = NULL;
if (ImGuiWindow* hovered_window = g.HoveredWindowUnderMovingWindow)
{
@ -13582,6 +13628,7 @@ static void ImGui::DockNodeUpdateTabBar(ImGuiDockNode* node, ImGuiWindow* host_w
if (window->LastFrameActive + 1 >= g.FrameCount || !node_was_active)
{
ImGuiTabItemFlags tab_item_flags = 0;
tab_item_flags |= window->WindowClass.TabItemFlagsOverrideSet;
if (window->Flags & ImGuiWindowFlags_UnsavedDocument)
tab_item_flags |= ImGuiTabItemFlags_UnsavedDocument;
if (tab_bar->Flags & ImGuiTabBarFlags_NoCloseWithMiddleMouseButton)