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Docking: Internal renaming and comments. + Fixed DockNodeMoveChildNodes() to transfer the LastExplicitSize value (was inconsequential afaik).

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This commit is contained in:
omar 2018-09-11 18:00:01 +02:00
parent 211a9c8fd2
commit 1cefc48f13
2 changed files with 57 additions and 58 deletions
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87
imgui.cpp
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@ -9622,7 +9622,7 @@ namespace ImGui
// ImGuiDockNode
static void DockNodeAddWindow(ImGuiDockNode* node, ImGuiWindow* window);
static void DockNodeMoveWindows(ImGuiDockNode* dst_node, ImGuiDockNode* src_node);
static void DockNodeMoveChilds(ImGuiDockNode* dst_node, ImGuiDockNode* src_node);
static void DockNodeMoveChildNodes(ImGuiDockNode* dst_node, ImGuiDockNode* src_node);
static void DockNodeApplyPosSizeToWindows(ImGuiDockNode* node);
static void DockNodeRemoveWindow(ImGuiDockNode* node, ImGuiWindow* window, ImGuiID save_dock_id);
static void DockNodeHideHostWindow(ImGuiDockNode* node);
@ -9928,14 +9928,14 @@ void ImGui::DockContextQueueUndock(ImGuiDockContext* ctx, ImGuiWindow* window)
void ImGui::DockContextProcessDock(ImGuiDockContext* ctx, ImGuiDockRequest* req)
{
ImGuiWindow* target_window = req->DockTarget;
ImGuiWindow* payload_window = req->DockPayload;
ImGuiWindow* target_window = req->DockTarget;
ImGuiDockNode* target_node = req->DockTargetNode;
// Decide which Tab will be selected at the end of the operation (do it before the target/payload swap)
// Decide which Tab will be selected at the end of the operation
ImGuiID next_selected_id = 0;
ImGuiDockNode* payload_node = payload_window->DockNodeAsHost;
if (payload_node && !payload_node->IsParent())
if (payload_node && !payload_node->IsSplitNode())
next_selected_id = payload_node->TabBar->NextSelectedTabId ? payload_node->TabBar->NextSelectedTabId : payload_node->TabBar->SelectedTabId;
if (payload_node == NULL)
next_selected_id = payload_window->ID;
@ -9943,11 +9943,11 @@ void ImGui::DockContextProcessDock(ImGuiDockContext* ctx, ImGuiDockRequest* req)
// FIXME-DOCK: When we are trying to dock an existing single-window node into a loose window, transfer Node ID as well
if (target_node && target_node == target_window->DockNodeAsHost)
IM_ASSERT(target_node->Windows.Size > 1 || target_node->IsParent() || target_node->IsDocumentRoot);
IM_ASSERT(target_node->Windows.Size > 1 || target_node->IsSplitNode() || target_node->IsDocumentRoot);
// Create new node and add existing window to it
if (target_node == NULL)
{
// Create new node and add existing window to it
target_node = DockContextAddNode(ctx, (ImGuiID)-1);
target_node->Pos = target_window->Pos;
target_node->Size = target_window->Size;
@ -9969,10 +9969,7 @@ void ImGui::DockContextProcessDock(ImGuiDockContext* ctx, ImGuiDockRequest* req)
const ImGuiAxis split_axis = (split_dir == ImGuiDir_Left || split_dir == ImGuiDir_Right) ? ImGuiAxis_X : ImGuiAxis_Y;
const int split_inheritor_child_idx = (split_dir == ImGuiDir_Left || split_dir == ImGuiDir_Up) ? 1 : 0;
const float split_ratio = req->DockSplitRatio;
if (payload_node)
DockNodeTreeSplit(ctx, target_node, split_axis, split_inheritor_child_idx, split_ratio, payload_node);
else
DockNodeTreeSplit(ctx, target_node, split_axis, split_inheritor_child_idx, split_ratio, NULL);
DockNodeTreeSplit(ctx, target_node, split_axis, split_inheritor_child_idx, split_ratio, payload_node); // payload_node may be NULL here!
ImGuiDockNode* inheritor_node = target_node->ChildNodes[split_inheritor_child_idx];
ImGuiDockNode* new_node = target_node->ChildNodes[split_inheritor_child_idx ^ 1];
target_node->LastFocusedNodeID = new_node->ID;
@ -9987,7 +9984,7 @@ void ImGui::DockContextProcessDock(ImGuiDockContext* ctx, ImGuiDockRequest* req)
if (target_node != payload_node)
{
// Create tab bar before we call DockNoveMoveWindows (which would attempt to move the old tab-bar, not holding the tab order we expect)
// Create tab bar before we call DockNoveMoveWindows (which would attempt to move the old tab-bar, which would lead us to payload tabs wrongly appearing before target tabs!)
if (target_node->Windows.Size > 0 && target_node->TabBar == NULL)
{
target_node->TabBar = IM_NEW(ImGuiTabBar)();
@ -9999,13 +9996,13 @@ void ImGui::DockContextProcessDock(ImGuiDockContext* ctx, ImGuiDockRequest* req)
{
// Transfer full payload node (with 1+ child windows or child nodes)
// FIXME-DOCK: Transition persistent DockId for all non-active windows?
if (payload_node->IsParent())
if (payload_node->IsSplitNode())
{
if (target_node->Windows.Size > 0)
{
// When can dock into a node that already has windows only if our payload is a node tree
// with a single visible node. In this situation, we move the windows of the target node
// into the visible node of the payload.
// We can dock into a node that already has windows _only_ if our payload is a node tree with a single visible node.
// In this situation, we move the windows of the target node into the currently visible node of the payload.
// This allows us to preserve some of the underlying settings nicely.
IM_ASSERT(payload_node->OnlyNodeWithWindows != NULL);
ImGuiDockNode* visible_node = payload_node->OnlyNodeWithWindows;
if (visible_node->TabBar)
@ -10015,7 +10012,8 @@ void ImGui::DockContextProcessDock(ImGuiDockContext* ctx, ImGuiDockRequest* req)
DockNodeMoveWindows(target_node, visible_node);
DockNodeMoveWindows(visible_node, target_node);
}
DockNodeMoveChilds(target_node, payload_node);
IM_ASSERT(target_node->Windows.Size == 0);
DockNodeMoveChildNodes(target_node, payload_node);
}
else
{
@ -10063,10 +10061,10 @@ ImGuiDockNode::ImGuiDockNode(ImGuiID id)
SplitRatio = 0.5f;
HostWindow = VisibleWindow = NULL;
OnlyNodeWithWindows = NULL;
SelectedTabID = 0;
LastFocusedNodeID = 0;
LastFrameAlive = LastFrameActive = -1;
WantCloseOne = 0;
LastFocusedNodeID = 0;
SelectedTabID = 0;
WantCloseTabID = 0;
IsVisible = true;
InitFromFirstWindow = IsExplicitRoot = IsDocumentRoot = HasCloseButton = HasCollapseButton = WantCloseAll = WantLockSizeOnce = false;
}
@ -10188,7 +10186,7 @@ static void ImGui::DockNodeRemoveWindow(ImGuiDockNode* node, ImGuiWindow* window
DockNodeUpdateVisibleFlag(node);
}
static void ImGui::DockNodeMoveChilds(ImGuiDockNode* dst_node, ImGuiDockNode* src_node)
static void ImGui::DockNodeMoveChildNodes(ImGuiDockNode* dst_node, ImGuiDockNode* src_node)
{
IM_ASSERT(dst_node->Windows.Size == 0);
dst_node->ChildNodes[0] = src_node->ChildNodes[0];
@ -10199,6 +10197,7 @@ static void ImGui::DockNodeMoveChilds(ImGuiDockNode* dst_node, ImGuiDockNode* sr
dst_node->ChildNodes[1]->ParentNode = dst_node;
dst_node->SplitAxis = src_node->SplitAxis;
dst_node->SplitRatio = src_node->SplitRatio;
dst_node->LastExplicitSize = src_node->LastExplicitSize;
src_node->ChildNodes[0] = src_node->ChildNodes[1] = NULL;
}
@ -10295,7 +10294,7 @@ static void ImGui::DockNodeUpdateVisibleFlagAndInactiveChilds(ImGuiDockNode* nod
bool node_was_active = (node->LastFrameActive + 1 == g.FrameCount);
bool remove = false;
remove |= node_was_active && (window->LastFrameActive + 1 < g.FrameCount);
remove |= node_was_active && (node->WantCloseAll || node->WantCloseOne == window->ID) && window->HasCloseButton && !(window->Flags & ImGuiWindowFlags_UnsavedDocument); // Submit all _expected_ closure from last frame
remove |= node_was_active && (node->WantCloseAll || node->WantCloseTabID == window->ID) && window->HasCloseButton && !(window->Flags & ImGuiWindowFlags_UnsavedDocument); // Submit all _expected_ closure from last frame
remove |= (window->DockTabWantClose);
if (!remove)
continue;
@ -10361,7 +10360,7 @@ static void ImGui::DockNodeUpdate(ImGuiDockNode* node)
DockNodeHideHostWindow(node);
node->InitFromFirstWindow = false;
node->WantCloseAll = false;
node->WantCloseOne = 0;
node->WantCloseTabID = 0;
node->HasCloseButton = node->HasCollapseButton = false;
node->LastFrameActive = g.FrameCount;
return;
@ -10432,7 +10431,7 @@ static void ImGui::DockNodeUpdate(ImGuiDockNode* node)
}
// Update active node (the one whose title bar is highlight) within a node tree
if (!node->IsParent())
if (!node->IsSplitNode())
node->LastFocusedNodeID = node->ID; // This also ensure on our creation frame we will receive the title screen highlight
else if (g.NavWindow && g.NavWindow->RootWindowDockStop->DockNode && g.NavWindow->RootWindowDockStop->ParentWindow == host_window)
node->LastFocusedNodeID = g.NavWindow->RootWindowDockStop->DockNode->ID;
@ -10447,14 +10446,14 @@ static void ImGui::DockNodeUpdate(ImGuiDockNode* node)
else
{
node->WantCloseAll = false;
node->WantCloseOne = 0;
node->WantCloseTabID = 0;
if (node->Windows.Size > 0)
node->SelectedTabID = node->Windows[0]->ID;
}
if (host_window && node->IsVisible)
{
// Background for empty nodes
if (node->Windows.Size == 0 && !node->IsParent())
if (node->Windows.Size == 0 && !node->IsSplitNode())
host_window->DrawList->AddRectFilled(node->Pos, node->Pos + node->Size, GetColorU32(ImGuiCol_DockingBg));
// Drop target
@ -10499,9 +10498,9 @@ static void ImGui::DockNodeUpdateTabBar(ImGuiDockNode* node, ImGuiWindow* host_w
const bool node_was_active = (node->LastFrameActive + 1 == g.FrameCount);
const bool closed_all = node->WantCloseAll && node_was_active;
const ImGuiID closed_one = node->WantCloseOne && node_was_active;
const ImGuiID closed_one = node->WantCloseTabID && node_was_active;
node->WantCloseAll = false;
node->WantCloseOne = 0;
node->WantCloseTabID = 0;
// Move ourselves to the Menu layer + Undo SkipItems flag in order to draw over the title bar (even if the window is collapsed)
bool backup_skip_item = host_window->SkipItems;
@ -10525,8 +10524,6 @@ static void ImGui::DockNodeUpdateTabBar(ImGuiDockNode* node, ImGuiWindow* host_w
is_focused = (g.NavWindowingTarget->DockNode == node);
else if (g.NavWindow && g.NavWindow->RootWindowForTitleBarHighlight == host_window->RootWindow && root_node->LastFocusedNodeID == node->ID)
is_focused = true;
//else if (tab_bar->SelectedTabId && tab_bar->NextSelectedTabId == tab_bar->SelectedTabId) // Handle the clicking frame
// is_focused = true;
// Collapse button changes shape and display a list
if (IsPopupOpen("#TabListMenu"))
@ -10616,7 +10613,7 @@ static void ImGui::DockNodeUpdateTabBar(ImGuiDockNode* node, ImGuiWindow* host_w
bool tab_open = true;
TabItemEx(tab_bar, window->Name, window->HasCloseButton ? &tab_open : NULL, tab_item_flags, window);
if (!tab_open)
node->WantCloseOne = window->ID;
node->WantCloseTabID = window->ID;
if (tab_bar->VisibleTabId == window->ID)
node->VisibleWindow = window;
@ -10647,7 +10644,7 @@ static void ImGui::DockNodeUpdateTabBar(ImGuiDockNode* node, ImGuiWindow* host_w
if (CloseButton(host_window->GetID("#CLOSE"), title_bar_rect.GetTR() + ImVec2(-style.FramePadding.x - rad, style.FramePadding.y + rad), rad + 1))
if (ImGuiTabItem* tab = TabBarFindTabByID(tab_bar, tab_bar->VisibleTabId))
{
node->WantCloseOne = tab->ID;
node->WantCloseTabID = tab->ID;
TabBarCloseTab(tab_bar, tab);
}
//if (IsItemActive())
@ -10706,7 +10703,7 @@ static bool DockNodeIsDropAllowedOne(ImGuiWindow* payload, ImGuiWindow* host_win
static bool ImGui::DockNodeIsDropAllowed(ImGuiWindow* host_window, ImGuiWindow* root_payload)
{
if (root_payload->DockNodeAsHost && root_payload->DockNodeAsHost->IsParent())
if (root_payload->DockNodeAsHost && root_payload->DockNodeAsHost->IsSplitNode())
return true;
const int payload_count = root_payload->DockNodeAsHost ? root_payload->DockNodeAsHost->Windows.Size : 1;
@ -10824,7 +10821,7 @@ static bool ImGui::DockNodePreviewDockCalc(ImGuiWindow* host_window, ImGuiDockNo
data->FutureNode.Pos = host_node ? host_node->Pos : host_window->Pos;
data->FutureNode.Size = host_node ? host_node->Size : host_window->Size;
const bool src_is_visibly_splitted = root_payload->DockNodeAsHost && root_payload->DockNodeAsHost->IsParent() && (root_payload->DockNodeAsHost->OnlyNodeWithWindows == NULL);
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;
@ -10988,7 +10985,7 @@ void ImGui::DockNodeTreeSplit(ImGuiDockContext* ctx, ImGuiDockNode* parent_node,
child_1->ParentNode = parent_node;
ImGuiDockNode* child_inheritor = (split_inheritor_child_idx == 0) ? child_0 : child_1;
DockNodeMoveChilds(child_inheritor, parent_node);
DockNodeMoveChildNodes(child_inheritor, parent_node);
parent_node->ChildNodes[0] = child_0;
parent_node->ChildNodes[1] = child_1;
parent_node->ChildNodes[split_inheritor_child_idx]->VisibleWindow = parent_node->VisibleWindow;
@ -11014,12 +11011,14 @@ void ImGui::DockNodeTreeMerge(ImGuiDockContext* ctx, ImGuiDockNode* parent_node,
IM_ASSERT(parent_node->TabBar == NULL);
IM_ASSERT(parent_node->Windows.Size == 0);
DockNodeMoveChilds(parent_node, merge_lead_child);
ImVec2 backup_last_explicit_size = parent_node->LastExplicitSize;
DockNodeMoveChildNodes(parent_node, merge_lead_child);
DockNodeMoveWindows(parent_node, merge_lead_child);
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->LastExplicitSize = backup_last_explicit_size;
ctx->Nodes.SetVoidPtr(child_0->ID, NULL);
ctx->Nodes.SetVoidPtr(child_1->ID, NULL);
@ -11032,7 +11031,7 @@ void ImGui::DockNodeTreeUpdatePosSize(ImGuiDockNode* node, ImVec2 pos, ImVec2 si
{
node->Pos = pos;
node->Size = size;
if (!node->IsParent())
if (!node->IsSplitNode())
return;
ImGuiDockNode* child_0 = node->ChildNodes[0];
@ -11101,7 +11100,7 @@ void ImGui::DockNodeTreeUpdatePosSize(ImGuiDockNode* node, ImVec2 pos, ImVec2 si
static void DockNodeTreeUpdateSplitterFindTouchingNode(ImGuiDockNode* node, ImGuiAxis axis, int side, ImVector<ImGuiDockNode*>* touching_nodes)
{
if (!node->IsParent())
if (!node->IsSplitNode())
{
touching_nodes->push_back(node);
return;
@ -11116,7 +11115,7 @@ static void DockNodeTreeUpdateSplitterFindTouchingNode(ImGuiDockNode* node, ImGu
void ImGui::DockNodeTreeUpdateSplitter(ImGuiDockNode* node)
{
if (!node->IsParent())
if (!node->IsSplitNode())
return;
ImGuiContext& g = *GImGui;
@ -11230,7 +11229,7 @@ ImGuiDockNode* ImGui::DockNodeTreeFindNodeByPos(ImGuiDockNode* node, ImVec2 pos)
{
if (!node->IsVisible)
return NULL;
if (node->IsParent())
if (node->IsSplitNode())
{
if (ImGuiDockNode* hovered_node = DockNodeTreeFindNodeByPos(node->ChildNodes[0], pos))
return hovered_node;
@ -11317,10 +11316,10 @@ void ImGui::DockSpace(const char* str_id, const ImVec2& size_arg, ImGuiDockSpace
char title[256];
ImFormatString(title, IM_ARRAYSIZE(title), "%s/%s", window->Name, str_id);
if (node->Windows.Size > 0 || node->IsParent())
if (node->Windows.Size > 0 || node->IsSplitNode())
PushStyleColor(ImGuiCol_ChildBg, IM_COL32(0, 0, 0, 0));
Begin(title, NULL, window_flags);
if (node->Windows.Size > 0 || node->IsParent())
if (node->Windows.Size > 0 || node->IsSplitNode())
PopStyleColor();
ImGuiWindow* host_window = g.CurrentWindow;
@ -11362,7 +11361,7 @@ void ImGui::BeginDocked(ImGuiWindow* window, bool* p_open)
if (dock_node == NULL)
dock_node = DockContextAddNode(g.DockContext, window->DockId);
if (dock_node->IsParent())
if (dock_node->IsSplitNode())
{
DockContextProcessUndock(g.DockContext, window);
return;
@ -11407,7 +11406,7 @@ void ImGui::BeginDocked(ImGuiWindow* window, bool* p_open)
}
IM_ASSERT(dock_node->HostWindow);
IM_ASSERT(!dock_node->IsParent());
IM_ASSERT(!dock_node->IsSplitNode());
// Position window
SetNextWindowPos(dock_node->Pos);
@ -11432,7 +11431,7 @@ void ImGui::BeginDocked(ImGuiWindow* window, bool* p_open)
if (dock_node->TabBar)
window->DockOrder = (short)DockNodeGetTabOrder(window);
if ((dock_node->WantCloseAll || dock_node->WantCloseOne == window->ID) && p_open != NULL)
if ((dock_node->WantCloseAll || dock_node->WantCloseTabID == window->ID) && p_open != NULL)
*p_open = false;
// Update ChildId to allow returning from Child to Parent with Escape

28
imgui_internal.h
View File

@ -738,42 +738,42 @@ struct ImGuiTabBarSortItem
float Width;
};
// sizeof() 92~128
// sizeof() 108~144
struct ImGuiDockNode
{
ImGuiID ID;
ImGuiID UserTypeIdFilter;
ImGuiDockSpaceFlags Flags;
ImGuiDockNode* ParentNode;
ImGuiDockNode* ChildNodes[2];
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.
ImGuiTabBar* TabBar;
ImVec2 Pos, Size; // Current position, size
ImVec2 LastExplicitSize; // Last explicit size (overridden when using a splitter affecting the node)
int SplitAxis;
float SplitRatio;
ImVec2 Pos, Size; // Current position, size.
ImVec2 LastExplicitSize; // [Split node only] Last explicit size (overridden when using a splitter affecting the node)
int SplitAxis; // [Split node only] Split axis (X or Y)
float SplitRatio; // [Split node only] Split ratio FIXME-DOCK: This can be obsoleted in favor of LastExplicitSize.
ImGuiWindow* HostWindow;
ImGuiWindow* VisibleWindow;
ImGuiDockNode* OnlyNodeWithWindows; // Root node only, set when there is a single visible node within the hierarchy
ImGuiID SelectedTabID;
int LastFrameAlive;
int LastFrameActive;
ImGuiID LastFocusedNodeID;
ImGuiID WantCloseOne;
ImGuiDockNode* OnlyNodeWithWindows; // [Root node only] Set when there is a single visible node within the hierarchy
int LastFrameAlive; // Last frame number the node was updated or kept alive explicitly with DockSpace() + mGuiDockSpaceFlags_KeepAliveOnly
int LastFrameActive; // Last frame number the node was updated.
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 WantCloseTabID; // [Tab node only] Set when closing a specific tab.
bool InitFromFirstWindow :1;
bool IsVisible :1; // Set to false when the node is hidden (usually disabled as it has no active window)
bool IsExplicitRoot :1; // Mark root node as explicit when created from a DockSpace()
bool IsDocumentRoot :1;
bool HasCloseButton :1;
bool HasCollapseButton :1;
bool WantCloseAll :1;
bool WantCloseAll :1; // Set when closing all tabs at once.
bool WantLockSizeOnce :1;
ImGuiDockNode(ImGuiID id);
~ImGuiDockNode();
bool IsRootNode() const { return ParentNode == NULL; }
bool IsParent() const { return ChildNodes[0] != NULL; }
bool IsSplitNode() const { return ChildNodes[0] != NULL; }
bool IsEmpty() const { return ChildNodes[0] == NULL && Windows.Size == 0; }
ImRect Rect() const { return ImRect(Pos.x, Pos.y, Pos.x + Size.x, Pos.y + Size.y); }
};