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Docking: Updating LastFrameActive earlier in Begin() because BeginDocked() will need to use it. Extracted some code into a DockNodeIsDropAllowedOne() function. Comments.
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omar
parent
a68c98bb67
commit
dcef0c0237
60
imgui.cpp
60
imgui.cpp
@ -3395,6 +3395,7 @@ void ImGui::NewFrame()
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}
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// Closing the focused window restore focus to the first active root window in descending z-order
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// FIXME: Because z-order and nav-order are correlated, this will focus the wrong window if we are part of a hierarchy with NoBringToFrontOnFocus flag.
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if (g.NavWindow && !g.NavWindow->WasActive)
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FocusFrontMostActiveWindowIgnoringOne(NULL);
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@ -3674,6 +3675,9 @@ void ImGui::EndFrame()
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g.CurrentWindow->Active = false;
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End();
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// Docking
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DockContextEndFrame(g.DockContext);
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// Draw modal whitening background on _other_ viewports than the one the modal or target are on
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ImGuiWindow* modal_window = GetFrontMostPopupModal();
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const bool dim_bg_for_modal = (modal_window != NULL);
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@ -4862,17 +4866,6 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
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const int current_frame = g.FrameCount;
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const bool first_begin_of_the_frame = (window->LastFrameActive != current_frame);
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if (first_begin_of_the_frame)
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{
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window->FlagsPreviousFrame = window->Flags;
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window->Flags = (ImGuiWindowFlags)flags;
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window->BeginOrderWithinParent = 0;
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window->BeginOrderWithinContext = g.WindowsActiveCount++;
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}
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else
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{
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flags = window->Flags;
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}
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// Update the Appearing flag
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bool window_just_activated_by_user = (window->LastFrameActive < current_frame - 1); // Not using !WasActive because the implicit "Debug" window would always toggle off->on
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@ -4887,6 +4880,20 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
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if (window->Appearing)
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SetWindowConditionAllowFlags(window, ImGuiCond_Appearing, true);
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// Update Flags, LastFrameActive, BeginOrderXXX fields
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if (first_begin_of_the_frame)
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{
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window->FlagsPreviousFrame = window->Flags;
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window->Flags = (ImGuiWindowFlags)flags;
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window->LastFrameActive = current_frame;
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window->BeginOrderWithinParent = 0;
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window->BeginOrderWithinContext = g.WindowsActiveCount++;
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}
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else
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{
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flags = window->Flags;
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}
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// Docking
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// (NB: during the frame dock nodes are created, it is possible that (window->DockIsActive == false) even though (window->DockNode->Windows.Size > 1)
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IM_ASSERT(window->DockNode == NULL || window->DockNodeAsHost == NULL); // Cannot be both
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@ -4973,7 +4980,6 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
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window->Active = true;
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window->HasCloseButton = (p_open != NULL);
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window->ClipRect = ImVec4(-FLT_MAX,-FLT_MAX,+FLT_MAX,+FLT_MAX);
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window->LastFrameActive = current_frame;
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window->IDStack.resize(1);
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// UPDATE CONTENTS SIZE, UPDATE HIDDEN STATUS
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@ -7611,6 +7617,7 @@ static void ImGui::UpdateSelectWindowViewport(ImGuiWindow* window)
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}
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else if ((flags & ImGuiWindowFlags_DockNodeHost) && (window->Appearing))
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{
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// Mark so the dock host can be on its own viewport
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window->ViewportAllowPlatformMonitorExtend = FindPlatformMonitorForRect(window->Rect());
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}
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if (window->ViewportTrySplit && window->ViewportAllowPlatformMonitorExtend < 0)
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@ -9709,6 +9716,10 @@ void ImGui::DockContextNewFrameUpdateDocking(ImGuiDockContext* ctx)
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DockNodeUpdate(node);
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}
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void ImGui::DockContextEndFrame(ImGuiDockContext* ctx)
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{
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(void)ctx;
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}
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static ImGuiDockNode* ImGui::DockContextFindNodeByID(ImGuiDockContext* ctx, ImGuiID id)
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{
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@ -9950,7 +9961,7 @@ void ImGui::DockContextProcessDock(ImGuiDockContext* ctx, ImGuiDockRequest* req)
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if (payload_node != NULL)
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{
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// Transfer full payload node (with 1+ child windows or child nodes)
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// FIXME-DOCKING: Transition persistent DockId for all non-active windows?
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// FIXME-DOCK: Transition persistent DockId for all non-active windows?
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if (payload_node->IsParent())
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{
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if (target_node->Windows.Size > 0)
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@ -10277,6 +10288,7 @@ static void ImGui::DockNodeUpdateVisibleFlag(ImGuiDockNode* node)
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static void ImGui::DockNodeUpdate(ImGuiDockNode* node)
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{
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ImGuiContext& g = *GImGui;
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IM_ASSERT(node->LastFrameActive != g.FrameCount);
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if (node->IsRootNode())
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{
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@ -10641,6 +10653,18 @@ static void ImGui::DockNodeUpdateTabBar(ImGuiDockNode* node, ImGuiWindow* host_w
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}
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}
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static bool DockNodeIsDropAllowedOne(ImGuiWindow* payload, ImGuiWindow* host_window)
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{
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if ((host_window->Flags & ImGuiWindowFlags_DockNodeHost) && host_window->DockNodeAsHost->IsExplicitRoot && payload->BeginOrderWithinContext < host_window->BeginOrderWithinContext)
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return false;
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ImGuiID host_user_type_id = host_window->DockNodeAsHost ? host_window->DockNodeAsHost->UserTypeIdFilter : host_window->UserTypeId;
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if (payload->UserTypeId != host_user_type_id)
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return false;
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return true;
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}
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static bool ImGui::DockNodeIsDropAllowed(ImGuiWindow* host_window, ImGuiWindow* root_payload)
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{
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if (root_payload->DockNodeAsHost && root_payload->DockNodeAsHost->IsParent())
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@ -10650,13 +10674,7 @@ static bool ImGui::DockNodeIsDropAllowed(ImGuiWindow* host_window, ImGuiWindow*
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for (int payload_n = 0; payload_n < payload_count; payload_n++)
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{
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ImGuiWindow* payload = root_payload->DockNodeAsHost ? root_payload->DockNodeAsHost->Windows[payload_n] : root_payload;
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if ((host_window->Flags & ImGuiWindowFlags_DockNodeHost) && payload->BeginOrderWithinContext < host_window->BeginOrderWithinContext)
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continue;
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ImGuiID host_user_type_id = host_window->DockNodeAsHost ? host_window->DockNodeAsHost->UserTypeIdFilter : host_window->UserTypeId;
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if (payload->UserTypeId != host_user_type_id)
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return false;
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if (DockNodeIsDropAllowedOne(payload, host_window))
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return true;
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}
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return false;
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@ -10871,7 +10889,7 @@ static void ImGui::DockNodePreviewDockRender(ImGuiWindow* host_window, ImGuiDock
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{
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// Calculate the tab bounding box for each payload window
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ImGuiWindow* payload = root_payload->DockNodeAsHost ? root_payload->DockNodeAsHost->TabBar->Tabs[payload_n].Window : root_payload;
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if ((host_window->Flags & ImGuiWindowFlags_DockNodeHost) && payload->BeginOrderWithinContext < host_window->BeginOrderWithinContext)
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if (!DockNodeIsDropAllowedOne(payload, host_window))
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continue;
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ImVec2 tab_size = TabItemCalcSize(payload->Name, payload->HasCloseButton);
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@ -1464,6 +1464,7 @@ namespace ImGui
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IMGUI_API void DockContextRebuild(ImGuiDockContext* ctx);
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IMGUI_API void DockContextNewFrameUpdateUndocking(ImGuiDockContext* ctx);
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IMGUI_API void DockContextNewFrameUpdateDocking(ImGuiDockContext* ctx);
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IMGUI_API void DockContextEndFrame(ImGuiDockContext* ctx);
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IMGUI_API void DockContextQueueUndock(ImGuiDockContext* ctx, ImGuiWindow* window);
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IMGUI_API void BeginDocked(ImGuiWindow* window, bool* p_open);
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IMGUI_API void BeginAsDockableDragDropSource(ImGuiWindow* window);
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