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Docking, Viewport: Reworked viewport inheritance/transition so that extracting a dock node from a split node owning its viewport will have both viewports be in the expected OS z-order. (The lower window re-use the exiting viewport, the detached node uses a new viewport:

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This commit is contained in:
omar 2018-09-24 10:53:51 +02:00
parent ae4b838840
commit 2a5ce1849a
2 changed files with 28 additions and 17 deletions
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42
imgui.cpp
View File

@ -9832,7 +9832,7 @@ static ImGuiDockNode* ImGui::DockContextAddNode(ImGuiContext* ctx, ImGuiID id)
} }
IM_ASSERT(DockContextFindNodeByID(ctx, id) == NULL); IM_ASSERT(DockContextFindNodeByID(ctx, id) == NULL);
ImGuiDockNode* node = IM_NEW(ImGuiDockNode)(id); ImGuiDockNode* node = IM_NEW(ImGuiDockNode)(id);
node->InitFromFirstWindow = true; node->InitFromFirstWindowPosSize = node->InitFromFirstWindowViewport = true;
ctx->DockContext->Nodes.SetVoidPtr(node->ID, node); ctx->DockContext->Nodes.SetVoidPtr(node->ID, node);
return node; return node;
} }
@ -10220,8 +10220,9 @@ void ImGui::DockContextProcessUndockNode(ImGuiContext* ctx, ImGuiDockNode* node)
int index_in_parent = (node->ParentNode->ChildNodes[0] == node) ? 0 : 1; int index_in_parent = (node->ParentNode->ChildNodes[0] == node) ? 0 : 1;
node->ParentNode->ChildNodes[index_in_parent] = NULL; node->ParentNode->ChildNodes[index_in_parent] = NULL;
DockNodeTreeMerge(ctx, node->ParentNode, node->ParentNode->ChildNodes[index_in_parent ^ 1]); DockNodeTreeMerge(ctx, node->ParentNode, node->ParentNode->ChildNodes[index_in_parent ^ 1]);
node->ParentNode->InitFromFirstWindowViewport = true; // The node that stays in place keeps the viewport, so our newly dragged out node will create a new viewport
node->ParentNode = NULL; node->ParentNode = NULL;
node->InitFromFirstWindow = true; node->InitFromFirstWindowPosSize = true;
node->WantMouseMove = true; node->WantMouseMove = true;
} }
MarkIniSettingsDirty(); MarkIniSettingsDirty();
@ -10246,7 +10247,8 @@ ImGuiDockNode::ImGuiDockNode(ImGuiID id)
SelectedTabID = 0; SelectedTabID = 0;
WantCloseTabID = 0; WantCloseTabID = 0;
IsVisible = true; IsVisible = true;
InitFromFirstWindow = IsDockSpace = IsDocumentRoot = HasCloseButton = HasCollapseButton = WantCloseAll = WantLockSizeOnce = WantMouseMove = false; InitFromFirstWindowPosSize = InitFromFirstWindowViewport = false;
IsDockSpace = IsDocumentRoot = HasCloseButton = HasCollapseButton = WantCloseAll = WantLockSizeOnce = WantMouseMove = false;
} }
ImGuiDockNode::~ImGuiDockNode() ImGuiDockNode::~ImGuiDockNode()
@ -10292,7 +10294,7 @@ static void ImGui::DockNodeAddWindow(ImGuiDockNode* node, ImGuiWindow* window, b
// When reactivating a node from two loose window, the target window pos/size are authoritative // When reactivating a node from two loose window, the target window pos/size are authoritative
if (node->Windows.Size == 2 && !node->IsDockSpace) if (node->Windows.Size == 2 && !node->IsDockSpace)
node->InitFromFirstWindow = true; node->InitFromFirstWindowPosSize = node->InitFromFirstWindowViewport = true;
// Add to tab bar if requested // Add to tab bar if requested
if (add_to_tab_bar) if (add_to_tab_bar)
@ -10358,12 +10360,12 @@ static void ImGui::DockNodeRemoveWindow(ImGuiDockNode* node, ImGuiWindow* window
if (node->Windows.Size == 1 && !node->IsDocumentRoot && node->HostWindow) if (node->Windows.Size == 1 && !node->IsDocumentRoot && node->HostWindow)
{ {
ImGuiWindow* remaining_window = node->Windows[0]; ImGuiWindow* remaining_window = node->Windows[0];
if (node->HostWindow->ViewportOwned) if (node->HostWindow->ViewportOwned && node->IsRootNode())
{ {
// Transfer viewport back to the remaining loose window // Transfer viewport back to the remaining loose window
IM_ASSERT(node->HostWindow->Viewport->Window == node->HostWindow); IM_ASSERT(node->HostWindow->Viewport->Window == node->HostWindow);
node->HostWindow->Viewport->Window = node->Windows[0]; node->HostWindow->Viewport->Window = remaining_window;
node->HostWindow->Viewport->ID = node->Windows[0]->ID; node->HostWindow->Viewport->ID = remaining_window->ID;
} }
remaining_window->Collapsed = node->HostWindow->Collapsed; remaining_window->Collapsed = node->HostWindow->Collapsed;
} }
@ -10557,22 +10559,29 @@ static void ImGui::DockNodeUpdate(ImGuiDockNode* node)
if (node->IsRootNode() && node->Windows.Size == 1 && !node->IsDockSpace) if (node->IsRootNode() && node->Windows.Size == 1 && !node->IsDockSpace)
{ {
// Floating window pos/size is authoritative // Floating window pos/size is authoritative
node->Pos = node->Windows[0]->Pos; ImGuiWindow* single_window = node->Windows[0];
node->Size = node->Windows[0]->SizeFull; node->Pos = single_window->Pos;
node->Size = single_window->SizeFull;
// Transfer focus immediately so when we revert to a regular window it is immediately selected // Transfer focus immediately so when we revert to a regular window it is immediately selected
if (node->HostWindow && g.NavWindow == node->HostWindow) if (node->HostWindow && g.NavWindow == node->HostWindow)
FocusWindow(node->Windows[0]); FocusWindow(single_window);
if (node->HostWindow)
{
single_window->Viewport = node->HostWindow->Viewport;
single_window->ViewportId = node->HostWindow->ViewportId;
single_window->Viewport->Window = single_window;
}
DockNodeHideHostWindow(node); DockNodeHideHostWindow(node);
node->InitFromFirstWindow = false; node->InitFromFirstWindowPosSize = node->InitFromFirstWindowViewport = false;
node->WantCloseAll = false; node->WantCloseAll = false;
node->WantCloseTabID = 0; node->WantCloseTabID = 0;
node->HasCloseButton = node->HasCollapseButton = false; node->HasCloseButton = node->HasCollapseButton = false;
node->LastFrameActive = g.FrameCount; node->LastFrameActive = g.FrameCount;
if (node->WantMouseMove) if (node->WantMouseMove)
DockNodeStartMouseMovingWindow(node, node->Windows[0]); DockNodeStartMouseMovingWindow(node, single_window);
return; return;
} }
@ -10600,12 +10609,11 @@ static void ImGui::DockNodeUpdate(ImGuiDockNode* node)
if (node->IsRootNode() && node->IsVisible) if (node->IsRootNode() && node->IsVisible)
{ {
if (node->InitFromFirstWindow && node->Windows.Size > 0) if (node->InitFromFirstWindowPosSize && node->Windows.Size > 0)
{ {
ImGuiWindow* init_window = node->Windows[0]; ImGuiWindow* init_window = node->Windows[0];
SetNextWindowPos(init_window->Pos); SetNextWindowPos(init_window->Pos);
SetNextWindowSize(init_window->SizeFull); SetNextWindowSize(init_window->SizeFull);
SetNextWindowViewport(init_window->ViewportId);
SetNextWindowCollapsed(init_window->Collapsed); SetNextWindowCollapsed(init_window->Collapsed);
} }
else if (node->HostWindow == NULL) else if (node->HostWindow == NULL)
@ -10614,6 +10622,8 @@ static void ImGui::DockNodeUpdate(ImGuiDockNode* node)
SetNextWindowPos(node->Pos); SetNextWindowPos(node->Pos);
SetNextWindowSize(node->Size); SetNextWindowSize(node->Size);
} }
if (node->InitFromFirstWindowViewport && node->Windows.Size > 0)
SetNextWindowViewport(node->Windows[0]->ViewportId);
// Begin into the host window // Begin into the host window
char window_label[20]; char window_label[20];
@ -10637,7 +10647,7 @@ static void ImGui::DockNodeUpdate(ImGuiDockNode* node)
{ {
node->HostWindow = host_window = node->ParentNode->HostWindow; node->HostWindow = host_window = node->ParentNode->HostWindow;
} }
node->InitFromFirstWindow = false; node->InitFromFirstWindowPosSize = node->InitFromFirstWindowViewport = false;
if (node->WantMouseMove && node->HostWindow) if (node->WantMouseMove && node->HostWindow)
DockNodeStartMouseMovingWindow(node, node->HostWindow); DockNodeStartMouseMovingWindow(node, node->HostWindow);
} }
@ -11239,7 +11249,7 @@ void ImGui::DockNodeTreeMerge(ImGuiContext* ctx, ImGuiDockNode* parent_node, ImG
if (child_1) if (child_1)
DockNodeMoveWindows(parent_node, child_1); DockNodeMoveWindows(parent_node, child_1);
DockNodeApplyPosSizeToWindows(parent_node); DockNodeApplyPosSizeToWindows(parent_node);
parent_node->InitFromFirstWindow = false; parent_node->InitFromFirstWindowPosSize = parent_node->InitFromFirstWindowViewport = false;
parent_node->VisibleWindow = merge_lead_child->VisibleWindow; parent_node->VisibleWindow = merge_lead_child->VisibleWindow;
parent_node->IsDocumentRoot = (child_0 && child_0->IsDocumentRoot) || (child_1 && child_1->IsDocumentRoot); parent_node->IsDocumentRoot = (child_0 && child_0->IsDocumentRoot) || (child_1 && child_1->IsDocumentRoot);
parent_node->SizeRef = backup_last_explicit_size; parent_node->SizeRef = backup_last_explicit_size;

3
imgui_internal.h
View File

@ -761,7 +761,8 @@ struct ImGuiDockNode
ImGuiID LastFocusedNodeID; // [Root node only] Which of our child node (any ancestor in the hierarchy) was last focused. ImGuiID LastFocusedNodeID; // [Root node only] Which of our child node (any ancestor in the hierarchy) was last focused.
ImGuiID SelectedTabID; // [Tab node only] Which of our tab is selected. ImGuiID SelectedTabID; // [Tab node only] Which of our tab is selected.
ImGuiID WantCloseTabID; // [Tab node only] Set when closing a specific tab. ImGuiID WantCloseTabID; // [Tab node only] Set when closing a specific tab.
bool InitFromFirstWindow :1; bool InitFromFirstWindowPosSize :1;
bool InitFromFirstWindowViewport :1;
bool IsVisible :1; // Set to false when the node is hidden (usually disabled as it has no active window) bool IsVisible :1; // Set to false when the node is hidden (usually disabled as it has no active window)
bool IsDockSpace :1; // Root node was created by a DockSpace() call. bool IsDockSpace :1; // Root node was created by a DockSpace() call.
bool IsDocumentRoot :1; bool IsDocumentRoot :1;