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Docking: Added ImGuiDockNodeFlags_NoDockingInsideDocRootNode flag. Honoring ImGuiDockNodeFlags_NoSplit in child node is already split (so we can use DockBuilder and then lock the layout). Added those options to the demo. (#2109)

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This commit is contained in:
omar
2018-10-03 14:51:31 +02:00
parent bd82539ad5
commit 1d3862b6b3
3 changed files with 40 additions and 20 deletions
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13
imgui.cpp
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@@ -10452,6 +10452,10 @@ static void ImGui::DockNodeUpdateVisibleFlagAndInactiveChilds(ImGuiDockNode* nod
IM_ASSERT(node->ParentNode == NULL || node->ParentNode->ChildNodes[0] == node || node->ParentNode->ChildNodes[1] == node);
// Inherit flags
if (node->ParentNode)
node->Flags = node->ParentNode->Flags;
// Recurse into children
// There is the possibility that one of our child becoming empty will delete itself and moving its sibling contents into 'node'.
// If 'node->ChildNode[0]' delete itself, then 'node->ChildNode[1]->Windows' will be moved into 'node'
@@ -11055,6 +11059,8 @@ static bool ImGui::DockNodePreviewDockCalc(ImGuiWindow* host_window, ImGuiDockNo
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_NoDockingInsideDocRootNode) && host_node->IsDocumentRoot)
data->IsCenterAvailable = false;
data->IsSidesAvailable = true;
if (host_node && (host_node->Flags & ImGuiDockNodeFlags_NoSplit))
@@ -11946,6 +11952,13 @@ void ImGui::BeginDocked(ImGuiWindow* window, bool* p_open)
g.NextWindowData.PosUndock = false;
}
// Undock if the ImGuiDockNodeFlags_NoDockingInDocRootNode got set
if (dock_node->IsDocumentRoot && (dock_node->Flags & ImGuiDockNodeFlags_NoDockingInsideDocRootNode))
{
DockContextProcessUndockWindow(ctx, window);
return;
}
// 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)

3
imgui.h
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@@ -797,7 +797,8 @@ 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_NoSplit = 1 << 1 // Disable splitting the node into smaller nodes. Useful e.g. when embedding dockspaces into a main root one (the root one may have splitting disableed to reduce confusion)
ImGuiDockNodeFlags_NoSplit = 1 << 1, // 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)
ImGuiDockNodeFlags_NoDockingInsideDocRootNode = 1 << 2 // Disable docking inside the DocumentRoot node. Useful if it is kept empty and invisible.
};
// Flags for ImGui::IsWindowFocused()

44
imgui_demo.cpp
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@@ -3732,25 +3732,42 @@ void ShowExampleAppDockSpace(bool* p_open)
flags |= ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove;
flags |= ImGuiWindowFlags_NoBringToFrontOnFocus | ImGuiWindowFlags_NoNavFocus;
}
static ImGuiDockNodeFlags dockspace_flags = ImGuiDockNodeFlags_None;
ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0.0f, 0.0f));
ImGui::Begin("DockSpace Demo", p_open, flags);
ImGui::PopStyleVar();
// Dockspace
ImGuiIO& io = ImGui::GetIO();
if (io.ConfigFlags & ImGuiConfigFlags_DockingEnable)
{
ImGuiID dockspace_id = ImGui::GetID("MyDockspace");
ImGui::DockSpace(dockspace_id, ImVec2(0.0f, 0.0f), dockspace_flags);
}
else
{
ShowDockingDisabledMessage();
}
if (ImGui::BeginMenuBar())
{
if (ImGui::BeginMenu("Docking"))
if (ImGui::BeginMenu("Options"))
{
if (ImGui::MenuItem("Remove DockSpace", NULL, false, p_open != NULL))
*p_open = false;
ImGui::Separator();
if (ImGui::MenuItem("Flag: NoSplit", "", (dockspace_flags & ImGuiDockNodeFlags_NoSplit) != 0))
dockspace_flags ^= ImGuiDockNodeFlags_NoSplit;
if (ImGui::MenuItem("Flag: NoDockingInsideDocRootNode", "", (dockspace_flags & ImGuiDockNodeFlags_NoDockingInsideDocRootNode) != 0))
dockspace_flags ^= ImGuiDockNodeFlags_NoDockingInsideDocRootNode;
// Disabling fullscreen would allow the window to be moved to the front of other windows,
// which we can't undo at the moment without finer window depth/z control.
//ImGui::MenuItem("Fullscreen", NULL, &opt_fullscreen_persistant);
ImGui::EndMenu();
}
// Disabling fullscreen would allow the window to be moved to the front of other windows,
// which we can't undo at the moment without finer window depth/z control.
/*if (ImGui::BeginMenu("Options"))
{
ImGui::MenuItem("Fullscreen", NULL, &opt_fullscreen_persistant);
ImGui::EndMenu();
}*/
ShowHelpMarker(
"You can _always_ dock _any_ window into another by holding the SHIFT key while moving a window. Try it now!" "\n"
"This demo app has nothing to do with it!" "\n\n"
@@ -3762,17 +3779,6 @@ void ShowExampleAppDockSpace(bool* p_open)
ImGui::EndMenuBar();
}
ImGuiIO& io = ImGui::GetIO();
if (io.ConfigFlags & ImGuiConfigFlags_DockingEnable)
{
ImGuiID dockspace_id = ImGui::GetID("MyDockspace");
ImGui::DockSpace(dockspace_id);
}
else
{
ShowDockingDisabledMessage();
}
ImGui::End();
if (opt_fullscreen)
ImGui::PopStyleVar();