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TreeNode: DrawLines: latch X1 offset during TreePush(). (#2920)

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ocornut 2025-04-09 17:43:48 +02:00
parent 5e7174dec6
commit bcbbfdaad4
1 changed files with 6 additions and 5 deletions
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11
imgui_widgets.cpp
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@ -6562,7 +6562,7 @@ static void TreeNodeStoreStackData(ImGuiTreeNodeFlags flags, float x1)
tree_node_data->NavRect = g.LastItemData.NavRect;
// Initially I tried to latch value for GetColorU32(ImGuiCol_TreeLines) but it's not a good trade-off for very large trees.
tree_node_data->DrawLinesX1 = (flags & (ImGuiTreeNodeFlags_DrawLinesFull | ImGuiTreeNodeFlags_DrawLinesToNodes)) ? x1 : +FLT_MAX;
tree_node_data->DrawLinesX1 = (flags & (ImGuiTreeNodeFlags_DrawLinesFull | ImGuiTreeNodeFlags_DrawLinesToNodes)) ? (x1 + g.FontSize * 0.5f + g.Style.FramePadding.x) : +FLT_MAX;
tree_node_data->DrawLinesY2 = -FLT_MAX;
window->DC.TreeHasStackDataDepthMask |= (1 << window->DC.TreeDepth);
}
@ -6857,11 +6857,12 @@ void ImGui::TreeNodeDrawLineToChildNode(const ImVec2& target_pos)
return;
ImGuiTreeNodeStackData* parent_data = &g.TreeNodeStack.Data[g.TreeNodeStack.Size - 1];
float x1 = parent_data->DrawLinesX1 + ImTrunc(g.FontSize * 0.5f + g.Style.FramePadding.x); // GetTreeNodeToLabelSpacing() * 0.5f
float x1 = ImTrunc(parent_data->DrawLinesX1);
float x2 = ImTrunc(target_pos.x);
float y = ImTrunc(target_pos.y);
parent_data->DrawLinesY2 = ImMax(parent_data->DrawLinesY2, y);
if (x1 < target_pos.x)
window->DrawList->AddLine(ImVec2(x1, y), ImVec2(target_pos.x, y), GetColorU32(ImGuiCol_TreeLines), g.Style.TreeLinesSize);
if (x1 < x2)
window->DrawList->AddLine(ImVec2(x1, y), ImVec2(x2, y), GetColorU32(ImGuiCol_TreeLines), g.Style.TreeLinesSize);
}
void ImGui::TreePush(const char* str_id)
@ -6916,7 +6917,7 @@ void ImGui::TreePop()
y2 = ImMin(y2, window->ClipRect.Max.y);
if (y1 < y2)
{
float x = data->DrawLinesX1 + ImTrunc(g.FontSize * 0.5f + g.Style.FramePadding.x); // GetTreeNodeToLabelSpacing() * 0.5f
float x = ImTrunc(data->DrawLinesX1);
window->DrawList->AddLine(ImVec2(x, y1), ImVec2(x, y2), GetColorU32(ImGuiCol_TreeLines), g.Style.TreeLinesSize);
}
}