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Demo: Tree: showing how to align tree node label with current x position (#324, #581)

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ocornut
2016-05-28 19:30:01 +02:00
parent 61c294bb52
commit 1483a69c11
3 changed files with 14 additions and 7 deletions
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14
imgui_demo.cpp
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@ -251,16 +251,22 @@ void ImGui::ShowTestWindow(bool* p_open)
ImGui::TreePop();
}
if (ImGui::TreeNode("With selectable nodes"))
if (ImGui::TreeNode("Advanced, with Selectable nodes"))
{
ShowHelpMarker("This is a more standard looking tree with selectable nodes.\nClick to select, CTRL+Click to toggle, click on arrows or double-click to open.");
ImGui::PushStyleVar(ImGuiStyleVar_IndentSpacing, ImGui::GetFontSize()*3); // Increase spacing to differentiate leaves from expanded contents.
static bool align_label_with_current_x_position = false;
ImGui::Checkbox("Align label with current X position)", &align_label_with_current_x_position);
ImGui::Text("Hello!");
if (align_label_with_current_x_position)
ImGui::Unindent(ImGui::GetTreeNodeToLabelSpacing());
static int selection_mask = (1 << 2); // Dumb representation of what may be user-side selection state. You may carry selection state inside or outside your objects in whatever format you see fit.
int node_clicked = -1; // Temporary storage of what node we have clicked to process selection at the end of the loop. May be a pointer to your own node type, etc.
ImGui::PushStyleVar(ImGuiStyleVar_IndentSpacing, ImGui::GetFontSize()*3); // Increase spacing to differentiate leaves from expanded contents.
for (int i = 0; i < 6; i++)
{
// Disable the default open on single-click behavior and pass in Selected flag according to our selection state.
ImGuiTreeNodeFlags node_flags = ((selection_mask & (1 << i)) ? ImGuiTreeNodeFlags_Selected : 0) | ImGuiTreeNodeFlags_OpenOnArrow | ImGuiTreeNodeFlags_OpenOnDoubleClick;
ImGuiTreeNodeFlags node_flags = ImGuiTreeNodeFlags_OpenOnArrow | ImGuiTreeNodeFlags_OpenOnDoubleClick | ((selection_mask & (1 << i)) ? ImGuiTreeNodeFlags_Selected : 0);
if (i < 3)
{
// Node
@ -290,6 +296,8 @@ void ImGui::ShowTestWindow(bool* p_open)
selection_mask = (1 << node_clicked); // Click to single-select
}
ImGui::PopStyleVar();
if (align_label_with_current_x_position)
ImGui::Indent(ImGui::GetTreeNodeToLabelSpacing());
ImGui::TreePop();
}
ImGui::TreePop();