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https://github.com/Drezil/imgui.git
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Internals: Docking, Tab Bar: Add DockNodeBeginAmendTabBar() and work toward making hybrid dock node with windows tab bars somehow work (not done).
This commit is contained in:
ocornut
parent
bae2240eda
commit
b26f1530b7
46
imgui.cpp
46
imgui.cpp
@ -12510,6 +12510,8 @@ bool ImGui::DockContextCalcDropPosForDocking(ImGuiWindow* target, ImGuiDockNode*
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// - DockNodeStartMouseMovingWindow()
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// - DockNodeUpdate()
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// - DockNodeUpdateWindowMenu()
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// - DockNodeBeginAmendTabBar()
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// - DockNodeEndAmendTabBar()
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// - DockNodeUpdateTabBar()
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// - DockNodeAddTabBar()
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// - DockNodeRemoveTabBar()
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@ -13231,7 +13233,8 @@ static ImGuiID ImGui::DockNodeUpdateWindowMenu(ImGuiDockNode* node, ImGuiTabBar*
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for (int tab_n = 0; tab_n < tab_bar->Tabs.Size; tab_n++)
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{
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ImGuiTabItem* tab = &tab_bar->Tabs[tab_n];
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IM_ASSERT(tab->Window != NULL);
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if (tab->Window == NULL)
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continue;
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if (Selectable(tab->Window->Name, tab->ID == tab_bar->SelectedTabId))
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ret_tab_id = tab->ID;
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SameLine();
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@ -13243,6 +13246,26 @@ static ImGuiID ImGui::DockNodeUpdateWindowMenu(ImGuiDockNode* node, ImGuiTabBar*
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return ret_tab_id;
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}
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// User helper to append/amend into a dock node tab bar. Most commonly used to add e.g. a "+" button.
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bool ImGui::DockNodeBeginAmendTabBar(ImGuiDockNode* node)
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{
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if (node->TabBar == NULL || node->HostWindow == NULL)
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return false;
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Begin(node->HostWindow->Name);
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PushOverrideID(node->ID);
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bool ret = BeginTabBarEx(node->TabBar, node->TabBar->BarRect, node->TabBar->Flags, node);
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IM_ASSERT(ret);
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return true;
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}
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void ImGui::DockNodeEndAmendTabBar()
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{
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EndTabBar();
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PopID();
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End();
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}
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// Submit the tab bar corresponding to a dock node and various housekeeping details.
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static void ImGui::DockNodeUpdateTabBar(ImGuiDockNode* node, ImGuiWindow* host_window)
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{
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ImGuiContext& g = *GImGui;
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@ -13446,7 +13469,14 @@ static void ImGui::DockNodeUpdateTabBar(ImGuiDockNode* node, ImGuiWindow* host_w
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if (g.HoveredId == 0 || g.HoveredId == title_bar_id || g.ActiveId == title_bar_id)
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{
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bool held;
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ButtonBehavior(title_bar_rect, title_bar_id, NULL, &held);
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ButtonBehavior(title_bar_rect, title_bar_id, NULL, &held, ImGuiButtonFlags_AllowItemOverlap);
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if (g.HoveredId == title_bar_id)
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{
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// ImGuiButtonFlags_AllowItemOverlap + SetItemAllowOverlap() required for appending into dock node tab bar,
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// otherwise dragging window will steal HoveredId and amended tabs cannot get them.
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host_window->DC.LastItemId = title_bar_id;
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SetItemAllowOverlap();
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}
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if (held)
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{
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if (IsMouseClicked(0))
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@ -15847,13 +15877,13 @@ void ImGui::ShowMetricsWindow(bool* p_open)
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const char* buf_end = buf + IM_ARRAYSIZE(buf);
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const bool is_active = (tab_bar->PrevFrameVisible >= ImGui::GetFrameCount() - 2);
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p += ImFormatString(p, buf_end - p, "Tab Bar 0x%08X (%d tabs)%s", tab_bar->ID, tab_bar->Tabs.Size, is_active ? "" : " *Inactive*");
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if (tab_bar->Flags & ImGuiTabBarFlags_DockNode)
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p += ImFormatString(p, buf_end - p, " { ");
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for (int tab_n = 0; tab_n < ImMin(tab_bar->Tabs.Size, 3); tab_n++)
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{
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p += ImFormatString(p, buf_end - p, " { ");
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for (int tab_n = 0; tab_n < ImMin(tab_bar->Tabs.Size, 3); tab_n++)
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p += ImFormatString(p, buf_end - p, "%s'%s'", tab_n > 0 ? ", " : "", tab_bar->Tabs[tab_n].Window->Name);
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p += ImFormatString(p, buf_end - p, (tab_bar->Tabs.Size > 3) ? " ... }" : " } ");
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ImGuiTabItem* tab = &tab_bar->Tabs[tab_n];
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p += ImFormatString(p, buf_end - p, "%s'%s'", tab_n > 0 ? ", " : "", (tab->Window || tab->NameOffset != -1) ? tab_bar->GetTabName(tab) : "???");
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}
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p += ImFormatString(p, buf_end - p, (tab_bar->Tabs.Size > 3) ? " ... }" : " } ");
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if (!is_active) { PushStyleColor(ImGuiCol_Text, GetStyleColorVec4(ImGuiCol_TextDisabled)); }
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bool open = ImGui::TreeNode(tab_bar, "%s", buf);
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if (!is_active) { PopStyleColor(); }
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@ -15872,7 +15902,7 @@ void ImGui::ShowMetricsWindow(bool* p_open)
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ImGui::PushID(tab);
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if (ImGui::SmallButton("<")) { TabBarQueueReorder(tab_bar, tab, -1); } ImGui::SameLine(0, 2);
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if (ImGui::SmallButton(">")) { TabBarQueueReorder(tab_bar, tab, +1); } ImGui::SameLine();
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ImGui::Text("%02d%c Tab 0x%08X '%s' Offset: %.1f, Width: %.1f/%.1f", tab_n, (tab->ID == tab_bar->SelectedTabId) ? '*' : ' ', tab->ID, (tab->Window || tab->NameOffset != -1) ? tab_bar->GetTabName(tab) : "", tab->Offset, tab->Width, tab->ContentWidth);
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ImGui::Text("%02d%c Tab 0x%08X '%s' Offset: %.1f, Width: %.1f/%.1f", tab_n, (tab->ID == tab_bar->SelectedTabId) ? '*' : ' ', tab->ID, (tab->Window || tab->NameOffset != -1) ? tab_bar->GetTabName(tab) : "???", tab->Offset, tab->Width, tab->ContentWidth);
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ImGui::PopID();
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}
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ImGui::TreePop();
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@ -2170,6 +2170,8 @@ namespace ImGui
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IMGUI_API void DockContextQueueUndockWindow(ImGuiContext* ctx, ImGuiWindow* window);
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IMGUI_API void DockContextQueueUndockNode(ImGuiContext* ctx, ImGuiDockNode* node);
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IMGUI_API bool DockContextCalcDropPosForDocking(ImGuiWindow* target, ImGuiDockNode* target_node, ImGuiWindow* payload, ImGuiDir split_dir, bool split_outer, ImVec2* out_pos);
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IMGUI_API bool DockNodeBeginAmendTabBar(ImGuiDockNode* node);
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IMGUI_API void DockNodeEndAmendTabBar();
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inline ImGuiDockNode* DockNodeGetRootNode(ImGuiDockNode* node) { while (node->ParentNode) node = node->ParentNode; return node; }
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inline int DockNodeGetDepth(const ImGuiDockNode* node) { int depth = 0; while (node->ParentNode) { node = node->ParentNode; depth++; } return depth; }
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inline ImGuiDockNode* GetWindowDockNode() { ImGuiContext& g = *GImGui; return g.CurrentWindow->DockNode; }
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@ -6824,7 +6824,7 @@ struct ImGuiTabBarSection
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namespace ImGui
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{
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static void TabBarLayout(ImGuiTabBar* tab_bar);
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static ImU32 TabBarCalcTabID(ImGuiTabBar* tab_bar, const char* label);
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static ImU32 TabBarCalcTabID(ImGuiTabBar* tab_bar, const char* label, ImGuiWindow* docked_window);
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static float TabBarCalcMaxTabWidth();
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static float TabBarScrollClamp(ImGuiTabBar* tab_bar, float scrolling);
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static void TabBarScrollToTab(ImGuiTabBar* tab_bar, ImGuiTabItem* tab, ImGuiTabBarSection* sections);
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@ -6918,7 +6918,7 @@ bool ImGui::BeginTabBarEx(ImGuiTabBar* tab_bar, const ImRect& tab_bar_bb, ImG
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// Ensure correct ordering when toggling ImGuiTabBarFlags_Reorderable flag, or when a new tab was added while being not reorderable
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if ((flags & ImGuiTabBarFlags_Reorderable) != (tab_bar->Flags & ImGuiTabBarFlags_Reorderable) || (tab_bar->TabsAddedNew && !(flags & ImGuiTabBarFlags_Reorderable)))
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if (tab_bar->Tabs.Size > 1 && (flags & ImGuiTabBarFlags_DockNode) == 0)
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if (tab_bar->Tabs.Size > 1 && (flags & ImGuiTabBarFlags_DockNode) == 0) // FIXME: TabBar with DockNode can now be hybrid
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ImQsort(tab_bar->Tabs.Data, tab_bar->Tabs.Size, sizeof(ImGuiTabItem), TabItemComparerByBeginOrder);
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tab_bar->TabsAddedNew = false;
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@ -7177,6 +7177,7 @@ static void ImGui::TabBarLayout(ImGuiTabBar* tab_bar)
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{
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ImGuiTabItem* tab = &tab_bar->Tabs[section_tab_index + tab_n];
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tab->Offset = tab_offset;
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tab->NameOffset = -1;
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tab_offset += tab->Width + (tab_n < section->TabCount - 1 ? g.Style.ItemInnerSpacing.x : 0.0f);
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}
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tab_bar->WidthAllTabs += ImMax(section->Width + section->Spacing, 0.0f);
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@ -7184,6 +7185,9 @@ static void ImGui::TabBarLayout(ImGuiTabBar* tab_bar)
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section_tab_index += section->TabCount;
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}
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// Clear name buffers
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tab_bar->TabsNames.Buf.resize(0);
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// If we have lost the selected tab, select the next most recently active one
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if (found_selected_tab_id == false)
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tab_bar->SelectedTabId = 0;
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@ -7220,21 +7224,18 @@ static void ImGui::TabBarLayout(ImGuiTabBar* tab_bar)
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tab_bar->ScrollingRectMinX = tab_bar->BarRect.Min.x + sections[0].Width + sections[0].Spacing;
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tab_bar->ScrollingRectMaxX = tab_bar->BarRect.Max.x - sections[2].Width - sections[1].Spacing;
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// Clear name buffers
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if ((tab_bar->Flags & ImGuiTabBarFlags_DockNode) == 0)
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tab_bar->TabsNames.Buf.resize(0);
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// Actual layout in host window (we don't do it in BeginTabBar() so as not to waste an extra frame)
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ImGuiWindow* window = g.CurrentWindow;
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window->DC.CursorPos = tab_bar->BarRect.Min;
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ItemSize(ImVec2(tab_bar->WidthAllTabsIdeal, tab_bar->BarRect.GetHeight()), tab_bar->FramePadding.y);
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}
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// Dockables uses Name/ID in the global namespace. Non-dockable items use the ID stack.
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static ImU32 ImGui::TabBarCalcTabID(ImGuiTabBar* tab_bar, const char* label)
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// Dockable uses Name/ID in the global namespace. Non-dockable items use the ID stack.
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static ImU32 ImGui::TabBarCalcTabID(ImGuiTabBar* tab_bar, const char* label, ImGuiWindow* docked_window)
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{
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if (tab_bar->Flags & ImGuiTabBarFlags_DockNode)
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if (docked_window != NULL)
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{
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IM_ASSERT(tab_bar->Flags & ImGuiTabBarFlags_DockNode);
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ImGuiID id = ImHashStr(label);
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KeepAliveID(id);
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return id;
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@ -7581,7 +7582,7 @@ bool ImGui::TabItemEx(ImGuiTabBar* tab_bar, const char* label, bool* p_open,
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return false;
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const ImGuiStyle& style = g.Style;
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const ImGuiID id = TabBarCalcTabID(tab_bar, label);
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const ImGuiID id = TabBarCalcTabID(tab_bar, label, docked_window);
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// If the user called us with *p_open == false, we early out and don't render.
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// We make a call to ItemAdd() so that attempts to use a contextual popup menu with an implicit ID won't use an older ID.
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@ -7631,9 +7632,10 @@ bool ImGui::TabItemEx(ImGuiTabBar* tab_bar, const char* label, bool* p_open,
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tab->Window = docked_window;
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// Append name with zero-terminator
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if (tab_bar->Flags & ImGuiTabBarFlags_DockNode)
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// (regular tabs are permitted in a DockNode tab bar, but window tabs not permitted in a non-DockNode tab bar)
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if (tab->Window != NULL)
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{
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IM_ASSERT(tab->Window != NULL);
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IM_ASSERT(tab_bar->Flags & ImGuiTabBarFlags_DockNode);
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tab->NameOffset = -1;
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}
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else
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@ -7851,7 +7853,7 @@ void ImGui::SetTabItemClosed(const char* label)
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if (is_within_manual_tab_bar)
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{
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ImGuiTabBar* tab_bar = g.CurrentTabBar;
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ImGuiID tab_id = TabBarCalcTabID(tab_bar, label);
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ImGuiID tab_id = TabBarCalcTabID(tab_bar, label, NULL);
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if (ImGuiTabItem* tab = TabBarFindTabByID(tab_bar, tab_id))
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tab->WantClose = true; // Will be processed by next call to TabBarLayout()
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}
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@ -7860,7 +7862,7 @@ void ImGui::SetTabItemClosed(const char* label)
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if (window->DockIsActive)
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if (ImGuiDockNode* node = window->DockNode)
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{
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ImGuiID tab_id = TabBarCalcTabID(node->TabBar, label);
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ImGuiID tab_id = TabBarCalcTabID(node->TabBar, label, window);
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TabBarRemoveTab(node->TabBar, tab_id);
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window->DockTabWantClose = true;
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}
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