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Internals: Added TreeNodeIsOpen() to facilitate discoverability. (#7553, #1131, #2958, #2079, #722)

This commit is contained in:
ocornut 2024-07-09 16:37:17 +02:00
parent 9c2f6003e4
commit ac7d6fb5ca
2 changed files with 11 additions and 4 deletions
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1
imgui_internal.h
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@ -3469,6 +3469,7 @@ namespace ImGui
IMGUI_API bool SplitterBehavior(const ImRect& bb, ImGuiID id, ImGuiAxis axis, float* size1, float* size2, float min_size1, float min_size2, float hover_extend = 0.0f, float hover_visibility_delay = 0.0f, ImU32 bg_col = 0);
IMGUI_API bool TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* label, const char* label_end = NULL);
IMGUI_API void TreePushOverrideID(ImGuiID id);
IMGUI_API bool TreeNodeIsOpen(ImGuiID id);
IMGUI_API void TreeNodeSetOpen(ImGuiID id, bool open);
IMGUI_API bool TreeNodeUpdateNextOpen(ImGuiID id, ImGuiTreeNodeFlags flags); // Return open state. Consume previous SetNextItemOpen() data, if any. May return true when logging.
IMGUI_API void SetNextItemSelectionUserData(ImGuiSelectionUserData selection_user_data);

14
imgui_widgets.cpp
View File

@ -6257,6 +6257,13 @@ bool ImGui::TreeNodeExV(const void* ptr_id, ImGuiTreeNodeFlags flags, const char
return TreeNodeBehavior(window->GetID(ptr_id), flags, label, label_end);
}
bool ImGui::TreeNodeIsOpen(ImGuiID id)
{
ImGuiContext& g = *GImGui;
ImGuiStorage* storage = g.CurrentWindow->DC.StateStorage;
return storage->GetInt(id, 0) != 0;
}
void ImGui::TreeNodeSetOpen(ImGuiID id, bool open)
{
ImGuiContext& g = *GImGui;
@ -6269,7 +6276,7 @@ bool ImGui::TreeNodeUpdateNextOpen(ImGuiID id, ImGuiTreeNodeFlags flags)
if (flags & ImGuiTreeNodeFlags_Leaf)
return true;
// We only write to the tree storage if the user clicks (or explicitly use the SetNextItemOpen function)
// We only write to the tree storage if the user clicks, or explicitly use the SetNextItemOpen function
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
ImGuiStorage* storage = window->DC.StateStorage;
@ -6311,6 +6318,7 @@ bool ImGui::TreeNodeUpdateNextOpen(ImGuiID id, ImGuiTreeNodeFlags flags)
}
// Store ImGuiTreeNodeStackData for just submitted node.
// Currently only supports 32 level deep and we are fine with (1 << Depth) overflowing into a zero, easy to increase.
static void TreeNodeStoreStackData(ImGuiTreeNodeFlags flags)
{
ImGuiContext& g = *GImGui;
@ -6393,7 +6401,6 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
// Store data for the current depth to allow returning to this node from any child item.
// For this purpose we essentially compare if g.NavIdIsAlive went from 0 to 1 between TreeNode() and TreePop().
// It will become tempting to enable ImGuiTreeNodeFlags_NavLeftJumpsBackHere by default or move it to ImGuiStyle.
// Currently only supports 32 level deep and we are fine with (1 << Depth) overflowing into a zero, easy to increase.
bool store_tree_node_stack_data = false;
if (!(flags & ImGuiTreeNodeFlags_NoTreePushOnOpen))
{
@ -6517,7 +6524,6 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
text_pos.x -= text_offset_x -padding.x;
if (flags & ImGuiTreeNodeFlags_ClipLabelForTrailingButton)
frame_bb.Max.x -= g.FontSize + style.FramePadding.x;
if (g.LogEnabled)
LogSetNextTextDecoration("###", "###");
}
@ -6550,7 +6556,7 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
if (store_tree_node_stack_data && is_open)
TreeNodeStoreStackData(flags); // Call before TreePushOverrideID()
if (is_open && !(flags & ImGuiTreeNodeFlags_NoTreePushOnOpen))
TreePushOverrideID(id);
TreePushOverrideID(id); // Could use TreePush(label) but this avoid computing twice
IMGUI_TEST_ENGINE_ITEM_INFO(id, label, g.LastItemData.StatusFlags | (is_leaf ? 0 : ImGuiItemStatusFlags_Openable) | (is_open ? ImGuiItemStatusFlags_Opened : 0));
return is_open;