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Docking: Added io.ConfigDockingTabBarOnSingleWindows option (mostly made possible by the previous fixes).

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Note that dock node have regressions compared to current floating window: no collapse, no auto-resize, resize grip under the scrollbar, border issues, general overhead. Will tackle those.
This commit is contained in:
omar
2018-12-04 13:36:36 +01:00
parent 8cac70d8af
commit 6644f1ff64
4 changed files with 51 additions and 20 deletions
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47
imgui.cpp
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@ -4935,6 +4935,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
// Find or create
ImGuiWindow* window = FindWindowByName(name);
const bool window_just_created = (window == NULL);
const bool window_is_fallback = (g.CurrentWindowStack.Size == 0);
if (window_just_created)
{
ImVec2 size_on_first_use = (g.NextWindowData.SizeCond != 0) ? g.NextWindowData.SizeVal : ImVec2(0.0f, 0.0f); // Any condition flag will do since we are creating a new window here.
@ -4983,10 +4984,15 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
IM_ASSERT(window->DockNode == NULL || window->DockNodeAsHost == NULL); // Cannot be both
if (g.NextWindowData.DockCond)
SetWindowDock(window, g.NextWindowData.DockId, g.NextWindowData.DockCond);
if (first_begin_of_the_frame && (window->DockId != 0 || window->DockNode != NULL))
if (first_begin_of_the_frame)
{
BeginDocked(window, p_open);
flags = window->Flags;
bool has_dock_node = (window->DockId != 0 || window->DockNode != NULL);
bool new_auto_dock_node = !has_dock_node && g.IO.ConfigDockingTabBarOnSingleWindows && !(flags & (ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoDocking)) && !window_is_fallback;
if (has_dock_node || new_auto_dock_node)
{
BeginDocked(window, p_open);
flags = window->Flags;
}
}
// 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
@ -10247,7 +10253,7 @@ void ImGui::DockContextProcessDock(ImGuiContext* ctx, ImGuiDockRequest* req)
if (target_node)
IM_ASSERT(target_node->LastFrameAlive < g.FrameCount);
if (target_node && target_window && target_node == target_window->DockNodeAsHost)
IM_ASSERT(target_node->Windows.Size > 1 || target_node->IsSplitNode() || target_node->IsCentralNode);
IM_ASSERT(target_node->Windows.Size > 0 || target_node->IsSplitNode() || target_node->IsCentralNode);
// Create new node and add existing window to it
if (target_node == NULL)
@ -10758,7 +10764,7 @@ static void ImGui::DockNodeUpdate(ImGuiDockNode* node)
}
// Early out for hidden root dock nodes (when all DockId references are in inactive windows, or there is only 1 floating window holding on the DockId)
if (node->IsRootNode() && node->IsLeafNode() && node->Windows.Size <= 1 && !node->IsDockSpace)
if (node->Windows.Size <= 1 && node->IsRootNode() && node->IsLeafNode() && !node->IsDockSpace && !g.IO.ConfigDockingTabBarOnSingleWindows)
{
if (node->Windows.Size == 1)
{
@ -12288,15 +12294,28 @@ void ImGui::BeginDocked(ImGuiWindow* window, bool* p_open)
ImGuiContext* ctx = GImGui;
ImGuiContext& g = *ctx;
// Calling SetNextWindowPos() undock windows by default (by setting PosUndock)
bool want_undock = false;
want_undock |= (window->Flags & ImGuiWindowFlags_NoDocking) != 0;
want_undock |= (g.NextWindowData.PosCond && (window->SetWindowPosAllowFlags & g.NextWindowData.PosCond) && g.NextWindowData.PosUndock);
g.NextWindowData.PosUndock = false;
if (want_undock)
const bool auto_dock_node = (g.IO.ConfigDockingTabBarOnSingleWindows) && !(window->Flags & (ImGuiWindowFlags_ChildWindow | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoDocking));
if (auto_dock_node)
{
DockContextProcessUndockWindow(ctx, window);
return;
if (window->DockId == 0)
{
IM_ASSERT(window->DockNode == NULL);
window->DockId = DockContextGenNodeID(ctx);
}
}
else
{
// Calling SetNextWindowPos() undock windows by default (by setting PosUndock)
bool want_undock = false;
want_undock |= (window->Flags & ImGuiWindowFlags_NoDocking) != 0;
want_undock |= (g.NextWindowData.PosCond && (window->SetWindowPosAllowFlags & g.NextWindowData.PosCond) && g.NextWindowData.PosUndock);
g.NextWindowData.PosUndock = false;
if (want_undock)
{
DockContextProcessUndockWindow(ctx, window);
return;
}
}
// Bind to our dock node
@ -12337,7 +12356,7 @@ void ImGui::BeginDocked(ImGuiWindow* window, bool* p_open)
// Undock if our dockspace node disappeared
// Note how we are testing for LastFrameAlive and NOT LastFrameActive. A DockSpace node can be maintained alive while being inactive with ImGuiDockNodeFlags_KeepAliveOnly.
if (dock_node->LastFrameAlive < g.FrameCount)
if (dock_node->LastFrameAlive < g.FrameCount && !auto_dock_node)
{
// If the window has been orphaned, transition the docknode to an implicit node processed in DockContextUpdateDocking()
ImGuiDockNode* root_node = DockNodeGetRootNode(dock_node);