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Demo: use ImGui version of TreeNodeGetOpen/TreeNodeSetOpen + comments.

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ocornut
2026-02-18 16:47:30 +01:00
parent 635a5c0a12
commit 0653a0d42a
2 changed files with 17 additions and 20 deletions
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31
imgui_demo.cpp
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@@ -290,6 +290,14 @@ ImGuiDemoMarkerCallback GImGuiDemoMarkerCallback = NULL;
void* GImGuiDemoMarkerCallbackUserData = NULL;
#define IMGUI_DEMO_MARKER(section) do { if (GImGuiDemoMarkerCallback != NULL) GImGuiDemoMarkerCallback("imgui_demo.cpp", __LINE__, section, GImGuiDemoMarkerCallbackUserData); } while (0)
// Sneakily forward declare functions which aren't worth putting in public API yet
namespace ImGui
{
IMGUI_API void ShowFontAtlas(ImFontAtlas* atlas);
IMGUI_API bool TreeNodeGetOpen(ImGuiID storage_id);
IMGUI_API void TreeNodeSetOpen(ImGuiID storage_id, bool is_open);
}
//-----------------------------------------------------------------------------
// [SECTION] Demo Window / ShowDemoWindow()
//-----------------------------------------------------------------------------
@@ -1746,9 +1754,6 @@ static void DemoWindowWidgetsDragsAndSliders()
// [SECTION] DemoWindowWidgetsFonts()
//-----------------------------------------------------------------------------
// Forward declare ShowFontAtlas() which isn't worth putting in public API yet
namespace ImGui { IMGUI_API void ShowFontAtlas(ImFontAtlas* atlas); }
static void DemoWindowWidgetsFonts()
{
IMGUI_DEMO_MARKER("Widgets/Fonts");
@@ -3079,16 +3084,6 @@ static void DemoWindowWidgetsSelectionAndMultiSelect(ImGuiDemoWindowData* demo_d
}
}
static bool TreeNodeGetOpen(ExampleTreeNode* node)
{
return ImGui::GetStateStorage()->GetBool((ImGuiID)node->UID);
}
static void TreeNodeSetOpen(ExampleTreeNode* node, bool open)
{
ImGui::GetStateStorage()->SetBool((ImGuiID)node->UID, open);
}
// When closing a node: 1) close and unselect all child nodes, 2) select parent if any child was selected.
// FIXME: This is currently handled by user logic but I'm hoping to eventually provide tree node
// features to do this automatically, e.g. a ImGuiTreeNodeFlags_AutoCloseChildNodes etc.
@@ -3096,11 +3091,11 @@ static void DemoWindowWidgetsSelectionAndMultiSelect(ImGuiDemoWindowData* demo_d
{
// Recursive close (the test for depth == 0 is because we call this on a node that was just closed!)
int unselected_count = selection->Contains((ImGuiID)node->UID) ? 1 : 0;
if (depth == 0 || TreeNodeGetOpen(node))
if (depth == 0 || ImGui::TreeNodeGetOpen((ImGuiID)node->UID))
{
for (ExampleTreeNode* child : node->Childs)
unselected_count += TreeCloseAndUnselectChildNodes(child, selection, depth + 1);
TreeNodeSetOpen(node, false);
ImGui::TreeNodeSetOpen((ImGuiID)node->UID, false);
}
// Select root node if any of its child was selected, otherwise unselect
@@ -3134,7 +3129,7 @@ static void DemoWindowWidgetsSelectionAndMultiSelect(ImGuiDemoWindowData* demo_d
{
if (node->Parent != NULL) // Root node isn't visible nor selectable in our scheme
selection->SetItemSelected((ImGuiID)node->UID, selected);
if (node->Parent == NULL || TreeNodeGetOpen(node))
if (node->Parent == NULL || ImGui::TreeNodeGetOpen((ImGuiID)node->UID))
for (ExampleTreeNode* child : node->Childs)
TreeSetAllInOpenNodes(child, selection, selected);
}
@@ -3154,7 +3149,7 @@ static void DemoWindowWidgetsSelectionAndMultiSelect(ImGuiDemoWindowData* demo_d
return NULL;
// Recurse into childs. Query storage to tell if the node is open.
if (curr_node->Childs.Size > 0 && TreeNodeGetOpen(curr_node))
if (curr_node->Childs.Size > 0 && ImGui::TreeNodeGetOpen((ImGuiID)curr_node->UID))
return curr_node->Childs[0];
// Next sibling, then into our own parent
@@ -9463,7 +9458,7 @@ struct ExampleAppPropertyEditor
Filter.Build();
ImGui::PopItemFlag();
if (ImGui::BeginTable("##bg", 1, ImGuiTableFlags_RowBg))
if (ImGui::BeginTable("##list", 1, ImGuiTableFlags_RowBg))
{
for (ExampleTreeNode* node : root_node->Childs)
if (Filter.PassFilter(node->Name)) // Filter root node

6
imgui_widgets.cpp
View File

@@ -6726,6 +6726,8 @@ bool ImGui::TreeNodeExV(const void* ptr_id, ImGuiTreeNodeFlags flags, const char
return TreeNodeBehavior(id, flags, label, label_end);
}
// The reason those two functions are not yet in public API is because I would like to design a more feature-full and generic API for this.
// They are otherwise function (cc: #3823, #9251, #7553, #6754, #5423, #2958, #2079, #1947, #1131, #722)
bool ImGui::TreeNodeGetOpen(ImGuiID storage_id)
{
ImGuiContext& g = *GImGui;
@@ -6733,11 +6735,11 @@ bool ImGui::TreeNodeGetOpen(ImGuiID storage_id)
return storage->GetInt(storage_id, 0) != 0;
}
void ImGui::TreeNodeSetOpen(ImGuiID storage_id, bool open)
void ImGui::TreeNodeSetOpen(ImGuiID storage_id, bool is_open)
{
ImGuiContext& g = *GImGui;
ImGuiStorage* storage = g.CurrentWindow->DC.StateStorage;
storage->SetInt(storage_id, open ? 1 : 0);
storage->SetInt(storage_id, is_open ? 1 : 0);
}
bool ImGui::TreeNodeUpdateNextOpen(ImGuiID storage_id, ImGuiTreeNodeFlags flags)