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Docking: Added ImGuiDockNodeFlags_PassthruDockspace mode (subdivided in three flags: ImGuiDockNodeFlags_NoDockingInCentralNode, ImGuiDockNodeFlags_PassthruInEmptyNodes, ImGuiDockNodeFlags_RenderWindowBg). Added internal facility for register a rectangular hit-test hole in window. Updated DockSpace demo accordingly. (#2109)

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This commit is contained in:
omar
2018-10-03 22:32:23 +02:00
parent 2dd8338e7d
commit 4e30698706
5 changed files with 166 additions and 85 deletions
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51
imgui_demo.cpp
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@ -3715,13 +3715,12 @@ static void ShowExampleAppCustomRendering(bool* p_open)
void ShowExampleAppDockSpace(bool* p_open)
{
static bool opt_fullscreen_persistant = true;
static ImGuiDockNodeFlags opt_flags = ImGuiDockNodeFlags_None;
bool opt_fullscreen = opt_fullscreen_persistant;
// We are using the ImGuiWindowFlags_NoDocking flag to make the parent window not dockable into.
// Because 1) it would be confusing to have two docking targets within each others.
// and 2) we want our main DockSpace node to always be visible (never hidden within a tab bar): if the DockSpace node disappear its child windows will be orphaned.
ImGuiWindowFlags flags = ImGuiWindowFlags_MenuBar;
flags |= ImGuiWindowFlags_NoDocking;
// We are using the ImGuiWindowFlags_NoDocking flag to make the parent window not dockable into,
// because it would be confusing to have two docking targets within each others.
ImGuiWindowFlags window_flags = ImGuiWindowFlags_MenuBar | ImGuiWindowFlags_NoDocking;
if (opt_fullscreen)
{
ImGuiViewport* viewport = ImGui::GetMainViewport();
@ -3729,22 +3728,28 @@ void ShowExampleAppDockSpace(bool* p_open)
ImGui::SetNextWindowSize(viewport->Size);
ImGui::SetNextWindowViewport(viewport->ID);
ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 0.0f);
flags |= ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove;
flags |= ImGuiWindowFlags_NoBringToFrontOnFocus | ImGuiWindowFlags_NoNavFocus;
ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 0.0f);
window_flags |= ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove;
window_flags |= ImGuiWindowFlags_NoBringToFrontOnFocus | ImGuiWindowFlags_NoNavFocus;
}
static ImGuiDockNodeFlags dockspace_flags = ImGuiDockNodeFlags_None;
// When using ImGuiDockNodeFlags_RenderWindowBg or ImGuiDockNodeFlags_InvisibleDockspace, DockSpace() will render our background and handle the pass-thru hole, so we ask Begin() to not render a background.
if (opt_flags & ImGuiDockNodeFlags_RenderWindowBg)
ImGui::SetNextWindowBgAlpha(0.0f);
ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0.0f, 0.0f));
ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 0.0f);
ImGui::Begin("DockSpace Demo", p_open, flags);
ImGui::PopStyleVar(2);
ImGui::Begin("DockSpace Demo", p_open, window_flags);
ImGui::PopStyleVar();
if (opt_fullscreen)
ImGui::PopStyleVar(2);
// 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 | ImGuiDockNodeFlags_NoOuterBorder);
ImGui::DockSpace(dockspace_id, ImVec2(0.0f, 0.0f), opt_flags);
}
else
{
@ -3753,21 +3758,21 @@ void ShowExampleAppDockSpace(bool* p_open)
if (ImGui::BeginMenuBar())
{
if (ImGui::BeginMenu("Options"))
if (ImGui::BeginMenu("Docking"))
{
if (ImGui::MenuItem("Remove DockSpace", NULL, false, p_open != NULL))
*p_open = false;
ImGui::Separator();
// 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);
if (ImGui::MenuItem("Flag: NoSplit", "", (dockspace_flags & ImGuiDockNodeFlags_NoSplit) != 0))
dockspace_flags ^= ImGuiDockNodeFlags_NoSplit;
if (ImGui::MenuItem("Flag: NoDockingInsideCentralNode", "", (dockspace_flags & ImGuiDockNodeFlags_NoDockingInsideCentralNode) != 0))
dockspace_flags ^= ImGuiDockNodeFlags_NoDockingInsideCentralNode;
if (ImGui::MenuItem("Flag: NoSplit", "", (opt_flags & ImGuiDockNodeFlags_NoSplit) != 0)) opt_flags ^= ImGuiDockNodeFlags_NoSplit;
if (ImGui::MenuItem("Flag: NoDockingInCentralNode", "", (opt_flags & ImGuiDockNodeFlags_NoDockingInCentralNode) != 0)) opt_flags ^= ImGuiDockNodeFlags_NoDockingInCentralNode;
if (ImGui::MenuItem("Flag: PassthruInEmptyNodes", "", (opt_flags & ImGuiDockNodeFlags_PassthruInEmptyNodes) != 0)) opt_flags ^= ImGuiDockNodeFlags_PassthruInEmptyNodes;
if (ImGui::MenuItem("Flag: RenderWindowBg", "", (opt_flags & ImGuiDockNodeFlags_RenderWindowBg) != 0)) opt_flags ^= ImGuiDockNodeFlags_RenderWindowBg;
if (ImGui::MenuItem("Flag: PassthruDockspace (all 3 above)", "", (opt_flags & ImGuiDockNodeFlags_PassthruDockspace) == ImGuiDockNodeFlags_PassthruDockspace))
opt_flags = (opt_flags & ~ImGuiDockNodeFlags_PassthruDockspace) | ((opt_flags & ImGuiDockNodeFlags_PassthruDockspace) == ImGuiDockNodeFlags_PassthruDockspace) ? 0 : ImGuiDockNodeFlags_PassthruDockspace;
ImGui::Separator();
if (ImGui::MenuItem("Close DockSpace", NULL, false, p_open != NULL))
*p_open = false;
ImGui::EndMenu();
}
ShowHelpMarker(
@ -3782,8 +3787,6 @@ void ShowExampleAppDockSpace(bool* p_open)
}
ImGui::End();
if (opt_fullscreen)
ImGui::PopStyleVar();
}
//-----------------------------------------------------------------------------