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

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This commit is contained in:
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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2
imgui.cpp
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@ -5847,7 +5847,7 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
bb.Max.x += (float)(int)(window->WindowPadding.x*0.5f) - 1;
}
const float text_offset_x = g.FontSize + (display_frame ? padding.x*3 : padding.x*2); // Collapser arrow width + Spacing
const float text_offset_x = (g.FontSize + (display_frame ? padding.x*3 : padding.x*2)); // Collapser arrow width + Spacing
const float text_width = g.FontSize + (label_size.x > 0.0f ? label_size.x + padding.x*2 : 0.0f); // Include collapser
ItemSize(ImVec2(text_width, frame_height), text_base_offset_y);

5
imgui.h
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@ -544,9 +544,8 @@ enum ImGuiTreeNodeFlags_
ImGuiTreeNodeFlags_OpenOnArrow = 1 << 7, // Only open when clicking on the arrow part. If ImGuiTreeNodeFlags_OpenOnDoubleClick is also set, single-click arrow or double-click all box to open.
ImGuiTreeNodeFlags_Leaf = 1 << 8, // No collapsing, no arrow (use as a convenience for leaf nodes).
ImGuiTreeNodeFlags_Bullet = 1 << 9, // Display a bullet instead of arrow
//ImGuiTreeNodeFlags_UnindentArrow = 1 << 10, // FIXME: TODO: Unindent tree so that Label is aligned to current X position
//ImGuITreeNodeFlags_SpanAllAvailWidth = 1 << 11, // FIXME: TODO: Extend hit box horizontally even if not framed
//ImGuiTreeNodeFlags_NoScrollOnOpen = 1 << 12, // FIXME: TODO: Disable automatic scroll on TreePop() if node got just open and contents is not visible
//ImGuITreeNodeFlags_SpanAllAvailWidth = 1 << 10, // FIXME: TODO: Extend hit box horizontally even if not framed
//ImGuiTreeNodeFlags_NoScrollOnOpen = 1 << 11, // FIXME: TODO: Disable automatic scroll on TreePop() if node got just open and contents is not visible
ImGuiTreeNodeFlags_CollapsingHeader = ImGuiTreeNodeFlags_Framed | ImGuiTreeNodeFlags_NoAutoOpenOnLog
};

14
imgui_demo.cpp
View File

@ -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();