Basic input
TreeSelect
Search a hierarchy and select one or more items while retaining their parent paths.
Example
Usage
Select from a hierarchy
Search a small tree and choose one item. A group can remain browse-only.
#include <FluentQt/BasicInput.h>
using namespace fluent::basicinput;
auto* select = new fluent::basicinput::TreeSelect(this);
select->setAccessibleName("Team");
select->setPlaceholderText("Choose a team");
auto* model = new QStandardItemModel(select);
auto* product = new QStandardItem("Product");
product->setSelectable(false);
auto* client = new QStandardItem("Client");
client->setData("client", Qt::UserRole);
auto* platform = new QStandardItem("Platform");
platform->setData("platform", Qt::UserRole);
product->appendRow(client);
product->appendRow(platform);
model->appendRow(product);
select->setModel(model);
select->setSelectedKeys({"client"});
select->setMaximumWidth(360);import fluentqt
from PySide6.QtCore import Qt
from PySide6.QtGui import QStandardItem, QStandardItemModel
select = fluentqt.TreeSelect()
select.setAccessibleName("Team")
select.setObjectName("basicTreeSelect")
select.setPlaceholderText("Choose a team")
model = QStandardItemModel(select)
product = QStandardItem("Product")
product.setSelectable(False)
client = QStandardItem("Client")
client.setData("client", Qt.UserRole)
platform = QStandardItem("Platform")
platform.setData("platform", Qt.UserRole)
product.appendRow(client)
product.appendRow(platform)
model.appendRow(product)
select.setModel(model)
select.setSelectedKeys(["client"])
select.setMaximumWidth(360)API
DeclarationNo matching API members.
fluent::basicinput::TreeSelect
Inherits QWidget · FluentElement · QMLPlus
Searchable single or multiple selection from a borrowed hierarchical model.
Constructors
Properties
QAbstractItemModel* model- Read
model()WritesetModel()NotifymodelChanged() int keyRole- Read
keyRole()WritesetKeyRole()NotifykeyRoleChanged() SelectionMode selectionMode- Read
selectionMode()WritesetSelectionMode()NotifyselectionModeChanged() QStringList selectedKeys- Read
selectedKeys()WritesetSelectedKeys()NotifyselectionChanged() QVariantList selectedItemsSelected value snapshots with key, text and full path strings.
ReadselectedItems()NotifyselectionChanged()int selectedCount- Read
selectedCount()NotifyselectionChanged() QString searchText- Read
searchText()WritesetSearchText()NotifysearchTextChanged() QString placeholderText- Read
placeholderText()WritesetPlaceholderText()NotifyplaceholderTextChanged() QString emptyTextMessage shown when the search has no matching rows; empty text hides the message.
ReademptyText()WritesetEmptyText()NotifyemptyTextChanged()bool readOnly- Read
isReadOnly()WritesetReadOnly()NotifyreadOnlyChanged() bool isOpen- Read
isOpen()WritesetIsOpen()NotifyisOpenChanged()
Methods
QVariantList selectedItems() constSelected value snapshots with key, text and full path strings.
void setSelectedKeys(const QStringList& keys)Selects known selectable keys; single mode retains the first valid key.
void setSearchText(const QString& text)Applies a query immediately; rapid typing on large trees is coalesced before filtering.
QString emptyText() constMessage shown when the search has no matching rows; empty text hides the message.
void setEmptyText(const QString& text)Message shown when the search has no matching rows; empty text hides the message.
Signals
void selectionChanged()Selected value snapshots with key, text and full path strings.
void emptyTextChanged()Message shown when the search has no matching rows; empty text hides the message.
Enumerations
enum class SelectionModeSingleMultiple
Destructors
Subclass interfaces
Methods
Inherited from fluent::FluentElement
Methods
static void setTheme(Theme theme)Updates the global theme and notifies active FluentElement instances.
static void setThemeDeferred(Theme theme)Schedules a visible-first batched theme refresh without blocking the current interaction.
static Theme currentTheme()Returns the currently active global theme.
static bool themeUsesDarkAppearance(Theme theme)Returns whether a theme uses dark-backed chrome and material tokens.
static void refreshTheme()Re-broadcasts the current theme to repaint after a design-token change.
static int themeGeneration()Monotonic counter bumped on every theme change, for staleness checks.
Theme effectiveTheme() constResolves the theme used by this element, honoring an inherited QWidget override.
bool effectiveThemeUsesDarkAppearance() constReturns whether this element's effective theme uses dark-backed chrome.
bool setThemeOverrides(const QJsonObject& overrides)Component-facing token accessors.
QJsonObject themeOverrides() constReturns this element's authored overrides.
void clearThemeOverrides()Restores all token fields to global theme defaults.
const Colors& themeColorsRef() constNon-copying access to the active color set (for hot paint paths).
Material::AcrylicToken themeAcrylic() constMaterial, elevation, and adaptive layout tokens.
QColor themeBackdrop(bool active) constWindow-chrome backdrop color for the given activation state.
virtual void onThemeUpdated()Called after the global theme changes.
Enumerations
enum ThemeGlobal visual theme used when resolving design tokens.
Light = 0Dark = 1HighContrast = 2
Types and aliases
struct ColorsDesign token snapshots returned to components.
Inherited from fluent::QMLPlus
Methods
AnchorLayout::Anchors* anchors()Returns mutable anchors for the QWidget host.
void setState(const QString& name)Applies a named state, or clears state when name is empty.
void addState(const QMLState& state)Registers or replaces a named state definition.
void evaluateStates()Reevaluates conditions; the first registered true condition wins.
QMLPlusRuntime* runtime()Returns the lazy host-owned state observation object.
void setAnchors(const AnchorLayout::Anchors& anchors)Replaces all host anchors and invalidates the parent layout.
void resetAnchors()Clears all host anchors and invalidates the parent layout.
void bind(const char* targetProp, QObject* source, const char* sourceProp, PropertyBinder::Direction dir = PropertyBinder::OneWay)Binds a source property to a property on the QWidget host.
BindingHandle bindManaged(const char* targetProp, QObject* source, const char* sourceProp, PropertyBinder::Direction direction = PropertyBinder::OneWay, BindingOptions options = {})Installs a managed direct binding on this QWidget host.
BindingHandle bindComputed(const char* targetProp, const QVector<BindingDependency>& dependencies, std::function<QVariant()> evaluate, BindingOptions options = {})Installs an explicit-dependency C++ expression on this QWidget host.
void addTransition(const StateTransition& transition)Registers a state transition in precedence order.
void setBehavior(const char* propertyName, const PropertyAnimation& animation)Sets the default animation for this host's managed property writes.
void clearBehavior(const char* propertyName)Removes the default animation for future managed writes.
bool writeProperty(const char* propertyName, const QVariant& value)Writes a host property through Behavior without removing its binding.
All inherited Qt members：QWidget