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Docking: Fixed losing tab bar selection when extracting a whole docked node + reusing existing dock node when possible.

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This commit is contained in:
omar 2018-09-21 15:59:31 +02:00
parent fda57f48d5
commit 67be485e24
1 changed files with 66 additions and 35 deletions
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75
imgui.cpp
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@ -9648,7 +9648,7 @@ namespace ImGui
static void DockContextBuildAddWindowsToNodes(ImGuiContext* ctx, ImGuiID root_id); // Use root_id==0 to add all
// ImGuiDockNode
static void DockNodeAddWindow(ImGuiDockNode* node, ImGuiWindow* window);
static void DockNodeAddWindow(ImGuiDockNode* node, ImGuiWindow* window, bool add_to_tab_bar);
static void DockNodeMoveWindows(ImGuiDockNode* dst_node, ImGuiDockNode* src_node);
static void DockNodeMoveChildNodes(ImGuiDockNode* dst_node, ImGuiDockNode* src_node);
static void DockNodeApplyPosSizeToWindows(ImGuiDockNode* node);
@ -10012,7 +10012,7 @@ void ImGui::DockContextBuildAddWindowsToNodes(ImGuiContext* ctx, ImGuiID root_id
ImGuiDockNode* dock_node = DockContextFindNodeByID(ctx, window->DockId);
IM_ASSERT(dock_node != NULL); // This should have been called after DockContextBuildNodesFromSettings()
if (root_id == 0 || DockNodeGetRootNode(dock_node)->ID == root_id)
DockNodeAddWindow(dock_node, window);
DockNodeAddWindow(dock_node, window, true);
}
}
@ -10095,7 +10095,7 @@ void ImGui::DockContextProcessDock(ImGuiContext* ctx, ImGuiDockRequest* req)
target_node->Size = target_window->Size;
if (target_window->DockNodeAsHost == NULL)
{
DockNodeAddWindow(target_node, target_window);
DockNodeAddWindow(target_node, target_window, true);
target_window->DockIsActive = true;
}
}
@ -10167,7 +10167,7 @@ void ImGui::DockContextProcessDock(ImGuiContext* ctx, ImGuiDockRequest* req)
{
// Transfer single window
target_node->VisibleWindow = payload_window;
DockNodeAddWindow(target_node, payload_window);
DockNodeAddWindow(target_node, payload_window, true);
}
}
@ -10196,20 +10196,26 @@ void ImGui::DockContextProcessUndockNode(ImGuiContext* ctx, ImGuiDockNode* node)
IM_ASSERT(!node->IsSplitNode());
IM_ASSERT(node->Windows.Size >= 1);
// In the case of a root node, a node will have to stay in place. Create a new node for this purpose.
// Otherwise delete the previous node by merging the other sibling back into the parent node.
if (node->IsRootNode())
{
// FIXME-DOCK: Transition persistent DockId for all non-active windows
ImGuiDockNode* new_node = DockContextAddNode(ctx, (ImGuiID)-1);
DockNodeMoveWindows(new_node, node);
for (int n = 0; n < new_node->Windows.Size; n++)
UpdateWindowParentAndRootLinks(new_node->Windows[n], new_node->Windows[n]->Flags, NULL);
new_node->WantMouseMove = true;
// In the case of a root node, a node will have to stay in place. Create a new node for this purpose.
// Otherwise delete the previous node by merging the other sibling back into the parent node.
// FIXME-DOCK: Transition persistent DockId for all non-active windows
if (!node->IsRootNode())
}
else
{
IM_ASSERT(node->ParentNode->ChildNodes[0] == node || node->ParentNode->ChildNodes[1] == node);
ImGuiDockNode* lead_sibling = node->ParentNode->ChildNodes[(node->ParentNode->ChildNodes[0] == node) ? 1 : 0];
DockNodeTreeMerge(ctx, node->ParentNode, lead_sibling);
int index_in_parent = (node->ParentNode->ChildNodes[0] == node) ? 0 : 1;
node->ParentNode->ChildNodes[index_in_parent] = NULL;
DockNodeTreeMerge(ctx, node->ParentNode, node->ParentNode->ChildNodes[index_in_parent ^ 1]);
node->ParentNode = NULL;
node->InitFromFirstWindow = true;
node->WantMouseMove = true;
}
MarkIniSettingsDirty();
}
@ -10252,7 +10258,7 @@ int ImGui::DockNodeGetTabOrder(ImGuiWindow* window)
return tab ? tab_bar->GetTabOrder(tab) : -1;
}
static void ImGui::DockNodeAddWindow(ImGuiDockNode* node, ImGuiWindow* window)
static void ImGui::DockNodeAddWindow(ImGuiDockNode* node, ImGuiWindow* window, bool add_to_tab_bar)
{
ImGuiContext& g = *GImGui; (void)g;
if (window->DockNode)
@ -10281,12 +10287,16 @@ static void ImGui::DockNodeAddWindow(ImGuiDockNode* node, ImGuiWindow* window)
if (node->Windows.Size == 2 && !node->IsDockSpace)
node->InitFromFirstWindow = true;
// Add to tab bar if requested
if (add_to_tab_bar)
{
if (node->TabBar == NULL)
{
node->TabBar = IM_NEW(ImGuiTabBar)();
node->TabBar->SelectedTabId = node->TabBar->NextSelectedTabId = node->SelectedTabID;
}
TabBarAddTab(node->TabBar, window);
}
DockNodeUpdateVisibleFlag(node);
@ -10376,19 +10386,31 @@ static void ImGui::DockNodeMoveWindows(ImGuiDockNode* dst_node, ImGuiDockNode* s
ImGuiTabBar* src_tab_bar = src_node->TabBar;
if (src_tab_bar != NULL)
IM_ASSERT(src_node->Windows.Size == src_node->TabBar->Tabs.Size);
// If the dst_node is empty we can just move the entire tab bar (to preserve selection, scrolling, etc.)
bool move_tab_bar = (src_tab_bar != NULL) && (dst_node->TabBar == NULL);
if (move_tab_bar)
{
dst_node->TabBar = src_node->TabBar;
src_node->TabBar = NULL;
}
for (int n = 0; n < src_node->Windows.Size; n++)
{
ImGuiWindow* window = src_tab_bar ? src_tab_bar->Tabs[n].Window : src_node->Windows[n];
window->DockNode = NULL;
window->DockIsActive = false;
DockNodeAddWindow(dst_node, window);
DockNodeAddWindow(dst_node, window, move_tab_bar ? false : true);
}
if (dst_node->TabBar == NULL)
dst_node->TabBar = src_node->TabBar;
else
src_node->Windows.clear();
if (!move_tab_bar && src_node->TabBar)
{
if (dst_node->TabBar)
dst_node->TabBar->SelectedTabId = src_node->TabBar->SelectedTabId;
IM_DELETE(src_node->TabBar);
src_node->TabBar = NULL;
src_node->Windows.clear();
}
}
static void ImGui::DockNodeApplyPosSizeToWindows(ImGuiDockNode* node)
@ -11192,11 +11214,12 @@ void ImGui::DockNodeTreeSplit(ImGuiContext* ctx, ImGuiDockNode* parent_node, ImG
void ImGui::DockNodeTreeMerge(ImGuiContext* ctx, ImGuiDockNode* parent_node, ImGuiDockNode* merge_lead_child)
{
// When called from DockContextProcessUndockNode() it is possible that one of the child is NULL.
ImGuiDockNode* child_0 = parent_node->ChildNodes[0];
ImGuiDockNode* child_1 = parent_node->ChildNodes[1];
IM_ASSERT(child_0 && child_1);
IM_ASSERT(child_0 || child_1);
IM_ASSERT(merge_lead_child == child_0 || merge_lead_child == child_1);
if (child_0->Windows.Size > 0 || child_1->Windows.Size > 0)
if ((child_0 && child_0->Windows.Size > 0) || (child_1 && child_1->Windows.Size > 0))
{
IM_ASSERT(parent_node->TabBar == NULL);
IM_ASSERT(parent_node->Windows.Size == 0);
@ -11204,18 +11227,26 @@ void ImGui::DockNodeTreeMerge(ImGuiContext* ctx, ImGuiDockNode* parent_node, ImG
ImVec2 backup_last_explicit_size = parent_node->SizeRef;
DockNodeMoveChildNodes(parent_node, merge_lead_child);
if (child_0)
DockNodeMoveWindows(parent_node, child_0); // Generally only 1 of the 2 child node will have windows
if (child_1)
DockNodeMoveWindows(parent_node, child_1);
DockNodeApplyPosSizeToWindows(parent_node);
parent_node->InitFromFirstWindow = false;
parent_node->VisibleWindow = merge_lead_child->VisibleWindow;
parent_node->IsDocumentRoot = child_0->IsDocumentRoot || child_1->IsDocumentRoot;
parent_node->IsDocumentRoot = (child_0 && child_0->IsDocumentRoot) || (child_1 && child_1->IsDocumentRoot);
parent_node->SizeRef = backup_last_explicit_size;
if (child_0)
{
ctx->DockContext->Nodes.SetVoidPtr(child_0->ID, NULL);
ctx->DockContext->Nodes.SetVoidPtr(child_1->ID, NULL);
IM_DELETE(child_0);
}
if (child_1)
{
ctx->DockContext->Nodes.SetVoidPtr(child_1->ID, NULL);
IM_DELETE(child_1);
}
}
// Update Pos/Size for a node hierarchy (don't affect child Windows yet)
@ -11613,7 +11644,7 @@ void ImGui::BeginDocked(ImGuiWindow* window, bool* p_open)
return;
}
DockNodeAddWindow(dock_node, window);
DockNodeAddWindow(dock_node, window, true);
IM_ASSERT(dock_node == window->DockNode);
// Fix an edge case with auto-resizing windows: if they are created on the same frame they are creating their dock node,