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Docking: Separating SharedFlags vs LocalFlags in dock node so settings can be applied to individual nodes. Made _NoResize logic on single node applies as expected. (#2423, #2109)

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This commit is contained in:
omar 2019-03-27 18:48:07 +01:00
parent 75e3793f4d
commit fd5859ed04
3 changed files with 54 additions and 36 deletions
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63
imgui.cpp
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@ -11097,7 +11097,7 @@ static void ImGui::DockContextBuildNodesFromSettings(ImGuiContext* ctx, ImGuiDoc
node->SelectedTabID = settings->SelectedTabID;
node->SplitAxis = settings->SplitAxis;
if (settings->IsDockSpace)
node->Flags |= ImGuiDockNodeFlags_DockSpace;
node->LocalFlags |= ImGuiDockNodeFlags_DockSpace;
node->IsCentralNode = settings->IsCentralNode != 0;
node->IsHiddenTabBar = settings->IsHiddenTabBar != 0;
@ -11343,7 +11343,7 @@ void ImGui::DockContextProcessUndockNode(ImGuiContext* ctx, ImGuiDockNode* node)
ImGuiDockNode::ImGuiDockNode(ImGuiID id)
{
ID = id;
Flags = ImGuiDockNodeFlags_None;
SharedFlags = LocalFlags = ImGuiDockNodeFlags_None;
ParentNode = ChildNodes[0] = ChildNodes[1] = NULL;
TabBar = NULL;
SplitAxis = ImGuiAxis_None;
@ -11613,9 +11613,8 @@ static void ImGui::DockNodeUpdateVisibleFlagAndInactiveChilds(ImGuiDockNode* nod
IM_ASSERT(node->ParentNode == NULL || node->ParentNode->ChildNodes[0] == node || node->ParentNode->ChildNodes[1] == node);
// Inherit most flags
ImGuiDockNodeFlags flags_to_inherit = ~ImGuiDockNodeFlags_DockSpace;
if (node->ParentNode)
node->Flags = node->ParentNode->Flags & flags_to_inherit;
node->SharedFlags = node->ParentNode->SharedFlags & ImGuiDockNodeFlags_SharedFlagsInheritMask_;
// Recurse into children
// There is the possibility that one of our child becoming empty will delete itself and moving its sibling contents into 'node'.
@ -11651,7 +11650,8 @@ static void ImGui::DockNodeUpdateVisibleFlagAndInactiveChilds(ImGuiDockNode* nod
}
// Auto-hide tab bar option
if (node->WantHiddenTabBarUpdate && node->Windows.Size == 1 && (node->Flags & ImGuiDockNodeFlags_AutoHideTabBar) && !node->IsHiddenTabBar)
ImGuiDockNodeFlags node_flags = node->GetMergedFlags();
if (node->WantHiddenTabBarUpdate && node->Windows.Size == 1 && (node_flags & ImGuiDockNodeFlags_AutoHideTabBar) && !node->IsHiddenTabBar)
node->WantHiddenTabBarToggle = true;
node->WantHiddenTabBarUpdate = false;
@ -11856,7 +11856,8 @@ static void ImGui::DockNodeUpdate(ImGuiDockNode* node)
// We need to draw a background at the root level if requested by ImGuiDockNodeFlags_PassthruCentralNode, but we will only know the correct pos/size after
// processing the resizing splitters. So we are using the DrawList channel splitting facility to submit drawing primitives out of order!
const bool render_dockspace_bg = node->IsRootNode() && host_window && (node->Flags & ImGuiDockNodeFlags_PassthruCentralNode) != 0;
const ImGuiDockNodeFlags node_flags = node->GetMergedFlags();
const bool render_dockspace_bg = node->IsRootNode() && host_window && (node_flags & ImGuiDockNodeFlags_PassthruCentralNode) != 0;
if (render_dockspace_bg)
{
host_window->DrawList->ChannelsSplit(2);
@ -11865,7 +11866,7 @@ static void ImGui::DockNodeUpdate(ImGuiDockNode* node)
// Register a hit-test hole in the window unless we are currently dragging a window that is compatible with our dockspace
const ImGuiDockNode* central_node = node->CentralNode;
const bool central_node_hole = node->IsRootNode() && host_window && (node->Flags & ImGuiDockNodeFlags_PassthruCentralNode) != 0 && central_node != NULL && central_node->IsEmpty();
const bool central_node_hole = node->IsRootNode() && host_window && (node_flags & ImGuiDockNodeFlags_PassthruCentralNode) != 0 && central_node != NULL && central_node->IsEmpty();
bool central_node_hole_register_hit_test_hole = central_node_hole;
if (central_node_hole)
if (const ImGuiPayload* payload = ImGui::GetDragDropPayload())
@ -11892,7 +11893,7 @@ static void ImGui::DockNodeUpdate(ImGuiDockNode* node)
}
// Draw empty node background (currently can only be the Central Node)
if (host_window && node->IsEmpty() && node->IsVisible && !(node->Flags & ImGuiDockNodeFlags_PassthruCentralNode))
if (host_window && node->IsEmpty() && node->IsVisible && !(node_flags & ImGuiDockNodeFlags_PassthruCentralNode))
host_window->DrawList->AddRectFilled(node->Pos, node->Pos + node->Size, GetColorU32(ImGuiCol_DockingEmptyBg));
// Draw whole dockspace background if ImGuiDockNodeFlags_PassthruCentralNode if set.
@ -12369,15 +12370,16 @@ static bool ImGui::DockNodePreviewDockCalc(ImGuiWindow* host_window, ImGuiDockNo
data->FutureNode.Size = host_node ? ref_node_for_rect->Size : host_window->Size;
// Figure out here we are allowed to dock
ImGuiDockNodeFlags host_node_flags = host_node ? host_node->GetMergedFlags() : 0;
const bool src_is_visibly_splitted = root_payload->DockNodeAsHost && root_payload->DockNodeAsHost->IsSplitNode() && (root_payload->DockNodeAsHost->OnlyNodeWithWindows == NULL);
data->IsCenterAvailable = !is_outer_docking;
if (src_is_visibly_splitted && (!host_node || !host_node->IsEmpty()))
data->IsCenterAvailable = false;
if (host_node && (host_node->Flags & ImGuiDockNodeFlags_NoDockingInCentralNode) && host_node->IsCentralNode)
if (host_node && (host_node_flags & ImGuiDockNodeFlags_NoDockingInCentralNode) && host_node->IsCentralNode)
data->IsCenterAvailable = false;
data->IsSidesAvailable = true;
if ((host_node && (host_node->Flags & ImGuiDockNodeFlags_NoSplit)) || g.IO.ConfigDockingNoSplit)
if ((host_node && (host_node_flags & ImGuiDockNodeFlags_NoSplit)) || g.IO.ConfigDockingNoSplit)
data->IsSidesAvailable = false;
if (!is_outer_docking && host_node && host_node->ParentNode == NULL && host_node->IsCentralNode)
data->IsSidesAvailable = false;
@ -12528,7 +12530,7 @@ static void ImGui::DockNodePreviewDockRender(ImGuiWindow* host_window, ImGuiDock
}
// Stop after ImGuiDir_None
if ((host_node && (host_node->Flags & ImGuiDockNodeFlags_NoSplit)) || g.IO.ConfigDockingNoSplit)
if ((host_node && (host_node->GetMergedFlags() & ImGuiDockNodeFlags_NoSplit)) || g.IO.ConfigDockingNoSplit)
return;
}
}
@ -12567,8 +12569,12 @@ void ImGui::DockNodeTreeSplit(ImGuiContext* ctx, ImGuiDockNode* parent_node, ImG
DockNodeTreeUpdatePosSize(parent_node, parent_node->Pos, parent_node->Size);
// Flags transfer
child_0->SharedFlags = parent_node->SharedFlags & ImGuiDockNodeFlags_SharedFlagsInheritMask_;
child_1->SharedFlags = parent_node->SharedFlags & ImGuiDockNodeFlags_SharedFlagsInheritMask_;
child_inheritor->LocalFlags = parent_node->LocalFlags & ImGuiDockNodeFlags_LocalFlagsTransferMask_;
child_inheritor->IsCentralNode = parent_node->IsCentralNode;
child_inheritor->IsHiddenTabBar = parent_node->IsHiddenTabBar;
parent_node->LocalFlags &= ~ImGuiDockNodeFlags_LocalFlagsTransferMask_;
parent_node->IsCentralNode = false;
}
@ -12603,6 +12609,7 @@ void ImGui::DockNodeTreeMerge(ImGuiContext* ctx, ImGuiDockNode* parent_node, ImG
parent_node->SizeRef = backup_last_explicit_size;
// Flags transfer
parent_node->LocalFlags = ((child_0 ? child_0->LocalFlags : 0) | (child_1 ? child_1->LocalFlags : 0)) & ImGuiDockNodeFlags_LocalFlagsTransferMask_;
parent_node->IsCentralNode = (child_0 && child_0->IsCentralNode) || (child_1 && child_1->IsCentralNode);
parent_node->IsHiddenTabBar = merge_lead_child->IsHiddenTabBar;
@ -12719,7 +12726,7 @@ void ImGui::DockNodeTreeUpdateSplitter(ImGuiDockNode* node)
bb.Max[axis ^ 1] += child_1->Size[axis ^ 1];
//if (g.IO.KeyCtrl) GetForegroundDrawList(g.CurrentWindow->Viewport)->AddRect(bb.Min, bb.Max, IM_COL32(255,0,255,255));
if (node->Flags & ImGuiDockNodeFlags_NoResize)
if ((child_0->GetMergedFlags() | child_1->GetMergedFlags()) & ImGuiDockNodeFlags_NoResize)
{
ImGuiWindow* window = g.CurrentWindow;
window->DrawList->AddRectFilled(bb.Min, bb.Max, GetColorU32(ImGuiCol_Separator), g.Style.FrameRounding);
@ -12904,7 +12911,7 @@ void ImGui::DockSpace(ImGuiID id, const ImVec2& size_arg, ImGuiDockNodeFlags fla
node = DockContextAddNode(ctx, id);
node->IsCentralNode = true;
}
node->Flags = flags;
node->SharedFlags = flags;
node->WindowClass = window_class ? *window_class : ImGuiWindowClass();
// When a DockSpace transitioned form implicit to explicit this may be called a second time
@ -12912,10 +12919,10 @@ void ImGui::DockSpace(ImGuiID id, const ImVec2& size_arg, ImGuiDockNodeFlags fla
if (node->LastFrameActive == g.FrameCount && !(flags & ImGuiDockNodeFlags_KeepAliveOnly))
{
IM_ASSERT(node->IsDockSpace() == false && "Cannot call DockSpace() twice a frame with the same ID");
node->Flags |= ImGuiDockNodeFlags_DockSpace;
node->LocalFlags |= ImGuiDockNodeFlags_DockSpace;
return;
}
node->Flags |= ImGuiDockNodeFlags_DockSpace;
node->LocalFlags |= ImGuiDockNodeFlags_DockSpace;
// Keep alive mode, this is allow windows docked into this node so stay docked even if they are not visible
if (flags & ImGuiDockNodeFlags_KeepAliveOnly)
@ -13061,7 +13068,7 @@ ImGuiID ImGui::DockBuilderAddNode(ImGuiID id, ImGuiDockNodeFlags flags)
ImGuiDockNode* node = NULL;
if (flags & ImGuiDockNodeFlags_DockSpace)
{
DockSpace(id, ImVec2(0, 0), flags | ImGuiDockNodeFlags_KeepAliveOnly);
DockSpace(id, ImVec2(0, 0), (flags & ~ImGuiDockNodeFlags_DockSpace) | ImGuiDockNodeFlags_KeepAliveOnly);
node = DockContextFindNodeByID(ctx, id);
}
else
@ -13070,7 +13077,7 @@ ImGuiID ImGui::DockBuilderAddNode(ImGuiID id, ImGuiDockNodeFlags flags)
node = DockContextFindNodeByID(ctx, id);
if (!node)
node = DockContextAddNode(ctx, id);
node->Flags = flags;
node->LocalFlags = flags;
}
node->LastFrameAlive = ctx->FrameCount; // Set this otherwise BeginDocked will undock during the same frame.
return node->ID;
@ -13097,7 +13104,7 @@ void ImGui::DockBuilderRemoveNodeChildNodes(ImGuiID root_id)
ImGuiDockNode* root_node = root_id ? DockContextFindNodeByID(ctx, root_id) : NULL;
if (root_id && root_node == NULL)
return;
bool has_document_root = false;
bool has_central_node = false;
ImGuiDataAutority backup_root_node_autority_for_pos = root_node ? root_node->AutorityForPos : ImGuiDataAutority_Auto;
ImGuiDataAutority backup_root_node_autority_for_size = root_node ? root_node->AutorityForSize : ImGuiDataAutority_Auto;
@ -13111,7 +13118,7 @@ void ImGui::DockBuilderRemoveNodeChildNodes(ImGuiID root_id)
if (want_removal)
{
if (node->IsCentralNode)
has_document_root = true;
has_central_node = true;
if (root_id != 0)
DockContextQueueNotifyRemovedNode(ctx, node);
if (root_node)
@ -13149,7 +13156,7 @@ void ImGui::DockBuilderRemoveNodeChildNodes(ImGuiID root_id)
dc->Nodes.Clear();
dc->Requests.clear();
}
else if (has_document_root)
else if (has_central_node)
{
root_node->IsCentralNode = true;
}
@ -13227,7 +13234,8 @@ static ImGuiDockNode* DockBuilderCopyNodeRec(ImGuiDockNode* src_node, ImGuiID ds
{
ImGuiContext* ctx = GImGui;
ImGuiDockNode* dst_node = ImGui::DockContextAddNode(ctx, dst_node_id_if_known);
dst_node->Flags = src_node->Flags;
dst_node->SharedFlags = src_node->SharedFlags;
dst_node->LocalFlags = src_node->LocalFlags;
dst_node->Pos = src_node->Pos;
dst_node->Size = src_node->Size;
dst_node->SizeRef = src_node->SizeRef;
@ -13488,7 +13496,7 @@ void ImGui::BeginDocked(ImGuiWindow* window, bool* p_open)
g.NextWindowData.PosUndock = false; // Cancel implicit undocking of SetNextWindowPos()
window->DockIsActive = true;
window->DockTabIsVisible = false;
if (node->Flags & ImGuiDockNodeFlags_KeepAliveOnly)
if (node->SharedFlags & ImGuiDockNodeFlags_KeepAliveOnly)
return;
// When the window is selected we mark it as visible.
@ -14206,9 +14214,14 @@ void ImGui::ShowDockingDebug()
ImGui::BulletText("VisibleWindow: 0x%08X %s", node->VisibleWindow ? node->VisibleWindow->ID : 0, node->VisibleWindow ? node->VisibleWindow->Name : "NULL");
ImGui::BulletText("SelectedTabID: 0x%08X", node->SelectedTabID);
ImGui::BulletText("LastFocusedNodeID: 0x%08X", node->LastFocusedNodeID);
ImGui::BulletText("Flags 0x%02X%s%s%s%s",
node->Flags, node->IsDockSpace() ? ", IsDockSpace" : "", node->IsCentralNode ? ", IsCentralNode" : "",
(g.FrameCount - node->LastFrameAlive < 2) ? ", IsAlive" : "", (g.FrameCount - node->LastFrameActive < 2) ? ", IsActive" : "");
if (ImGui::TreeNode("flags", "SharedFlags 0x%03X NodeFlags 0x%03X%s%s%s%s",
node->SharedFlags, node->LocalFlags, node->IsDockSpace() ? ", IsDockSpace" : "", node->IsCentralNode ? ", IsCentralNode" : "",
(g.FrameCount - node->LastFrameAlive < 2) ? ", IsAlive" : "", (g.FrameCount - node->LastFrameActive < 2) ? ", IsActive" : ""))
{
ImGui::CheckboxFlags("NodeFlags: NoSplit", (unsigned int*)&node->LocalFlags, ImGuiDockNodeFlags_NoSplit);
ImGui::CheckboxFlags("NodeFlags: NoResize", (unsigned int*)&node->LocalFlags, ImGuiDockNodeFlags_NoResize);
ImGui::TreePop();
}
if (node->ChildNodes[0])
NodeDockNode(node->ChildNodes[0], "Child[0]");
if (node->ChildNodes[1])

17
imgui.h
View File

@ -878,17 +878,18 @@ enum ImGuiTabItemFlags_
ImGuiTabItemFlags_NoPushId = 1 << 3 // Don't call PushID(tab->ID)/PopID() on BeginTabItem()/EndTabItem()
};
// Flags for ImGui::DockSpace(), inherited by child nodes.
// Flags for ImGui::DockSpace(), shared/inherited by child nodes.
// (Some flags can be applied to individual nodes directly)
enum ImGuiDockNodeFlags_
{
ImGuiDockNodeFlags_None = 0,
ImGuiDockNodeFlags_KeepAliveOnly = 1 << 0, // Don't display the dockspace node but keep it alive. Windows docked into this dockspace node won't be undocked.
//ImGuiDockNodeFlags_NoCentralNode = 1 << 1, // Disable Central Node (the node which can stay empty)
ImGuiDockNodeFlags_NoDockingInCentralNode = 1 << 2, // Disable docking inside the Central Node, which will be always kept empty. Note: when turned off, existing docked nodes will be preserved.
ImGuiDockNodeFlags_NoSplit = 1 << 3, // Disable splitting the node into smaller nodes. Useful e.g. when embedding dockspaces into a main root one (the root one may have splitting disabled to reduce confusion). Note: when turned off, existing splits will be preserved.
ImGuiDockNodeFlags_NoResize = 1 << 4, // Disable resizing child nodes using the splitter/separators. Useful with programatically setup dockspaces.
ImGuiDockNodeFlags_PassthruCentralNode = 1 << 5, // Enable passthru dockspace: 1) DockSpace() will render a ImGuiCol_WindowBg background covering everything excepted the Central Node when empty. Meaning the host window should probably use SetNextWindowBgAlpha(0.0f) prior to Begin() when using this. 2) When Central Node is empty: let inputs pass-through + won't display a DockingEmptyBg background. See demo for details.
ImGuiDockNodeFlags_AutoHideTabBar = 1 << 6 // Tab bar will automatically hide when there is a single window in the dock node.
ImGuiDockNodeFlags_KeepAliveOnly = 1 << 0, // Shared // Don't display the dockspace node but keep it alive. Windows docked into this dockspace node won't be undocked.
//ImGuiDockNodeFlags_NoCentralNode = 1 << 1, // Shared // Disable Central Node (the node which can stay empty)
ImGuiDockNodeFlags_NoDockingInCentralNode = 1 << 2, // Shared // Disable docking inside the Central Node, which will be always kept empty.
ImGuiDockNodeFlags_PassthruCentralNode = 1 << 3, // Shared // Enable passthru dockspace: 1) DockSpace() will render a ImGuiCol_WindowBg background covering everything excepted the Central Node when empty. Meaning the host window should probably use SetNextWindowBgAlpha(0.0f) prior to Begin() when using this. 2) When Central Node is empty: let inputs pass-through + won't display a DockingEmptyBg background. See demo for details.
ImGuiDockNodeFlags_NoSplit = 1 << 4, // Shared/Local // Disable splitting the node into smaller nodes. Useful e.g. when embedding dockspaces into a main root one (the root one may have splitting disabled to reduce confusion). Note: when turned off, existing splits will be preserved.
ImGuiDockNodeFlags_NoResize = 1 << 5, // Shared/Local // Disable resizing child nodes using the splitter/separators. Useful with programatically setup dockspaces.
ImGuiDockNodeFlags_AutoHideTabBar = 1 << 6 // Shared/Local // Tab bar will automatically hide when there is a single window in the dock node.
};
// Flags for ImGui::IsWindowFocused()

10
imgui_internal.h
View File

@ -851,7 +851,9 @@ struct ImGuiTabBarRef
enum ImGuiDockNodeFlagsPrivate_
{
ImGuiDockNodeFlags_DockSpace = 1 << 10
ImGuiDockNodeFlags_DockSpace = 1 << 10, // Local // A dockspace is a node that occupy space within an existing user window. Otherwise the node is floating and create its own window.
ImGuiDockNodeFlags_SharedFlagsInheritMask_ = ~0,
ImGuiDockNodeFlags_LocalFlagsTransferMask_ = ImGuiDockNodeFlags_NoResize | ImGuiDockNodeFlags_AutoHideTabBar // When splitting those flags are moved to the inheriting child, never duplicated
};
enum ImGuiDataAutority_
@ -865,7 +867,8 @@ enum ImGuiDataAutority_
struct ImGuiDockNode
{
ImGuiID ID;
ImGuiDockNodeFlags Flags;
ImGuiDockNodeFlags SharedFlags; // Flags shared by all nodes of a same dockspace hierarchy (inherited from the root node)
ImGuiDockNodeFlags LocalFlags; // Flags specific to this node
ImGuiDockNode* ParentNode;
ImGuiDockNode* ChildNodes[2]; // [Split node only] Child nodes (left/right or top/bottom). Consider switching to an array.
ImVector<ImGuiWindow*> Windows; // Note: unordered list! Iterate TabBar->Tabs for user-order.
@ -904,10 +907,11 @@ struct ImGuiDockNode
ImGuiDockNode(ImGuiID id);
~ImGuiDockNode();
bool IsRootNode() const { return ParentNode == NULL; }
bool IsDockSpace() const { return (Flags & ImGuiDockNodeFlags_DockSpace) != 0; }
bool IsDockSpace() const { return (LocalFlags & ImGuiDockNodeFlags_DockSpace) != 0; }
bool IsSplitNode() const { return ChildNodes[0] != NULL; }
bool IsLeafNode() const { return ChildNodes[0] == NULL; }
bool IsEmpty() const { return ChildNodes[0] == NULL && Windows.Size == 0; }
ImGuiDockNodeFlags GetMergedFlags() const { return SharedFlags | LocalFlags; }
ImRect Rect() const { return ImRect(Pos.x, Pos.y, Pos.x + Size.x, Pos.y + Size.y); }
};