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Polish shared editor tree context behavior

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This commit is contained in:
ssdfasd
2026-03-28 00:03:20 +08:00
parent 7d6032be23
commit b77615569c
7 changed files with 164 additions and 38 deletions
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8
editor/src/UI/StyleTokens.h
View File

@@ -170,6 +170,14 @@ inline float NavigationTreePrefixWidth() {
return 16.0f;
}
inline float NavigationTreePrefixLabelGap() {
return 6.0f;
}
inline float NavigationTreePrefixStartOffset() {
return 2.0f;
}
inline ImVec4 NavigationTreePrefixColor(bool selected = false, bool hovered = false) {
if (selected) {
return ImVec4(0.86f, 0.86f, 0.86f, 1.0f);

50
editor/src/UI/TreeView.h
View File

@@ -94,28 +94,6 @@ struct TreeNodeDefinition {
TreeNodeCallbacks callbacks;
};
inline std::string MakeTreeNodeDisplayLabel(const char* label, float prefixWidth) {
std::string result;
if (!label) {
return result;
}
if (prefixWidth <= 0.0f) {
result = label;
return result;
}
const float spaceWidth = ImGui::CalcTextSize(" ").x;
int spaceCount = static_cast<int>(prefixWidth / (spaceWidth > 0.0f ? spaceWidth : 1.0f)) + 1;
if (spaceCount < 1) {
spaceCount = 1;
}
result.assign(static_cast<size_t>(spaceCount), ' ');
result += label;
return result;
}
inline TreeNodeResult DrawTreeNode(
TreeViewState* state,
const void* id,
@@ -149,9 +127,20 @@ inline TreeNodeResult DrawTreeNode(
flags |= ImGuiTreeNodeFlags_DefaultOpen;
}
const std::string displayLabel = definition.prefix.IsVisible()
? MakeTreeNodeDisplayLabel(label, definition.prefix.width)
: std::string(label ? label : "");
std::string displayLabel = label ? label : "";
if (definition.prefix.IsVisible()) {
const float reserveWidth =
NavigationTreePrefixStartOffset() +
definition.prefix.width +
NavigationTreePrefixLabelGap();
const float spaceWidth = ImGui::CalcTextSize(" ").x;
int spaceCount = static_cast<int>(reserveWidth / (spaceWidth > 0.0f ? spaceWidth : 1.0f)) + 2;
if (spaceCount < 1) {
spaceCount = 1;
}
displayLabel.insert(0, static_cast<size_t>(spaceCount), ' ');
}
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, NavigationTreeNodeFramePadding());
const bool open = ImGui::TreeNodeEx(id, flags, "%s", displayLabel.c_str());
@@ -170,14 +159,17 @@ inline TreeNodeResult DrawTreeNode(
state->SetExpanded(definition.persistenceKey, result.open);
}
const ImVec2 itemMin = ImGui::GetItemRectMin();
const ImVec2 itemMax = ImGui::GetItemRectMax();
const float labelStartX = itemMin.x + ImGui::GetTreeNodeToLabelSpacing();
if (definition.prefix.IsVisible()) {
const ImVec2 itemMin = ImGui::GetItemRectMin();
const ImVec2 itemMax = ImGui::GetItemRectMax();
const float prefixMinX = itemMin.x + ImGui::GetTreeNodeToLabelSpacing();
const float prefixMinX = labelStartX + NavigationTreePrefixStartOffset();
const float prefixMaxX = prefixMinX + definition.prefix.width;
definition.prefix.draw(TreeNodePrefixContext{
ImGui::GetWindowDrawList(),
ImVec2(prefixMinX, itemMin.y),
ImVec2(prefixMinX + definition.prefix.width, itemMax.y),
ImVec2(prefixMaxX, itemMax.y),
options.selected,
result.hovered
});