public static void TransferRulePropertiesToSelector(this StyleSheet toStyleSheet, StyleComplexSelector toSelector, StyleSheet fromStyleSheet, StyleRule fromRule)
{
foreach (var property in fromRule.properties)
{
var newProperty = toStyleSheet.AddProperty(toSelector, property.name);
foreach (var value in property.values)
{
switch (value.valueType)
{
case StyleValueType.Float: toStyleSheet.AddValue(newProperty, fromStyleSheet.GetFloat(value)); break;
#if UNITY_2019_3_OR_NEWER
case StyleValueType.Dimension: toStyleSheet.AddValue(newProperty, fromStyleSheet.GetDimension(value)); break;
#endif
case StyleValueType.Enum: toStyleSheet.AddValueAsEnum(newProperty, fromStyleSheet.GetEnum(value)); break;
case StyleValueType.String: toStyleSheet.AddValue(newProperty, fromStyleSheet.GetString(value)); break;
case StyleValueType.Color: toStyleSheet.AddValue(newProperty, fromStyleSheet.GetColor(value)); break;
case StyleValueType.AssetReference: toStyleSheet.AddValue(newProperty, fromStyleSheet.GetAsset(value)); break;
case StyleValueType.ResourcePath: toStyleSheet.AddValue(newProperty, fromStyleSheet.GetAsset(value)); break;
#if UNITY_2019_3_OR_NEWER // UNITY_BUILDER_VARIABLE_SUPPORT
case StyleValueType.Variable: toStyleSheet.AddVariable(newProperty, fromStyleSheet.GetString(value)); break;
#endif
}
}
}
foreach (var property in fromRule.properties)
{
fromStyleSheet.RemoveProperty(fromRule, property);
}
}
static StyleProperty GetOrCreateStylePropertyByStyleName(StyleSheet styleSheet, StyleRule styleRule, string styleName)
{
var styleProperty = styleSheet.FindProperty(styleRule, styleName);
if (styleProperty == null)
{
styleProperty = styleSheet.AddProperty(styleRule, styleName);
}
return(styleProperty);
}
public static void AddStyleComplexSelectorToSelection(StyleSheet styleSheet, StyleComplexSelector scs)
{
var selectionProp = styleSheet.AddProperty(
scs,
BuilderConstants.SelectedStyleRulePropertyName,
BuilderConstants.ChangeSelectionUndoMessage);
// Need to add at least one dummy value because lots of code will die
// if it encounters a style property with no values.
styleSheet.AddValue(
selectionProp, 42.0f, BuilderConstants.ChangeSelectionUndoMessage);
}
public static void SwallowStyleRule(
StyleSheet toStyleSheet, StyleRule toRule,
StyleSheet fromStyleSheet, StyleRule fromRule)
{
// Add property values to sheet.
foreach (var fromProperty in fromRule.properties)
{
var toProperty = toStyleSheet.AddProperty(toRule, fromProperty.name);
for (int i = 0; i < fromProperty.values.Length; ++i)
{
var fromValueHandle = fromProperty.values[i];
var toValueIndex = toStyleSheet.SwallowStyleValue(fromStyleSheet, fromValueHandle);
toStyleSheet.AddValueHandle(toProperty, toValueIndex, fromValueHandle.valueType);
}
}
}
void CloneTree()
{
m_Container.Clear();
m_StyleSheetContents.Clear();
m_VisualTreeAssetContents.Clear();
m_Container.styleSheets.Clear();
if (m_VisualTreeAsset != null)
{
m_VisualTreeAsset.LinkedCloneTree(m_Container);
var canvas = m_Container.Q("sample-canvas");
var canvasAsset = canvas.GetVisualElementAsset();
var newButton = m_VisualTreeAsset.AddElement(canvasAsset, "UnityEngine.UIElements.Button");
newButton.AddProperty("name", "new-guy");
newButton.AddProperty("text", "Canvas Button 2!");
newButton.AddStyleClass("new-guy-type");
newButton.AddStyleClass("some-button");
newButton.RemoveStyleClass("some-button");
newButton.AddStyleClass("some-fancy-button");
{ // Add max-width to newButton.
var rule = m_VisualTreeAsset.GetOrCreateInlineStyleRule(newButton);
var prop = m_VisualTreeAsset.inlineSheet.AddProperty(rule, "max-width");
var val = m_VisualTreeAsset.inlineSheet.AddValue(prop, 200);
}
{ // Add max-width to canvas.
var rule = m_VisualTreeAsset.GetOrCreateInlineStyleRule(canvasAsset);
var prop = m_VisualTreeAsset.inlineSheet.AddProperty(rule, "max-width");
var val = m_VisualTreeAsset.inlineSheet.AddValue(prop, 500);
}
{ // Change border of canvas.
var rule = m_VisualTreeAsset.GetOrCreateInlineStyleRule(canvasAsset);
var prop = m_VisualTreeAsset.inlineSheet.FindLastProperty(rule, "border-width");
m_VisualTreeAsset.inlineSheet.SetValue(prop.values[0], 10);
}
{ // Remove max-width
var rule = m_VisualTreeAsset.GetOrCreateInlineStyleRule(canvasAsset);
var prop = m_VisualTreeAsset.inlineSheet.FindLastProperty(rule, "max-width");
m_VisualTreeAsset.inlineSheet.RemoveProperty(rule, prop);
}
var newButton2 = m_VisualTreeAsset.AddElement(canvasAsset, "UnityEngine.UIElements.Button");
m_VisualTreeAsset.RemoveElement(newButton2);
var newInstance = m_VisualTreeAsset.AddTemplateInstance(canvasAsset, "SampleSection");
newInstance.SetAttributeOverride("section-text-field", "label", "label programmatically written!");
newInstance.SetAttributeOverride("section-text-field", "text", "text programmatically written!");
newInstance.RemoveAttributeOverride("section-text-field", "text");
newInstance.AddStyleSheetPath(s_CanvasInstanceUSSPath);
var overriddenSection = m_VisualTreeAsset.FindElementByName("overridden-section");
if (overriddenSection != null)
{
overriddenSection.RemoveStyleSheetPath(s_CanvasInstanceUSSPath);
}
// Add UXML string.
var uxmlString = m_VisualTreeAsset.GenerateUXML(null);
m_VisualTreeAssetContents.Add(new Label(uxmlString));
// Add inline stylesheet.
var inlineBuilder = new StringBuilder();
foreach (var rule in m_VisualTreeAsset.inlineSheet.rules)
{
inlineBuilder.Append("{\n");
var exportOptions = new UssExportOptions();
StyleSheetToUss.ToUssString(m_VisualTreeAsset.inlineSheet, exportOptions, rule, inlineBuilder);
inlineBuilder.Append("}\n");
}
var inlineStyleSheetString = inlineBuilder.ToString();
m_VisualTreeAssetContents.Add(new Label(inlineStyleSheetString));
m_Container.Clear();
m_VisualTreeAsset.LinkedCloneTree(m_Container);
}
if (m_StyleSheet != null)
{
// Add width
//var firstSelector = m_StyleSheet.complexSelectors.First();
//var firstSelector = m_StyleSheet.FindSelector(".blue#red > .green .pink");
var firstSelector = m_StyleSheet.FindSelector(".unity-button");
if (firstSelector != null)
{
var widthProperty = m_StyleSheet.AddProperty(firstSelector, "width");
var widthValue = m_StyleSheet.AddValue(widthProperty, 62);
m_StyleSheet.SetValue(widthValue, 82);
m_StyleSheet.RemoveProperty(firstSelector, widthProperty);
var borderWidthProperty = m_StyleSheet.AddProperty(firstSelector, "border-width");
m_StyleSheet.AddValue(borderWidthProperty, 1);
m_StyleSheet.AddValue(borderWidthProperty, 2);
m_StyleSheet.AddValue(borderWidthProperty, 5);
var leftBorderWidthValue = m_StyleSheet.AddValue(borderWidthProperty, 8);
m_StyleSheet.RemoveValue(borderWidthProperty, leftBorderWidthValue);
var borderColorProperty = m_StyleSheet.AddProperty(firstSelector, "border-color");
var borderColorValue = m_StyleSheet.AddValue(borderColorProperty, Color.red);
m_StyleSheet.SetValue(borderColorValue, Color.green);
}
var newSelector = m_StyleSheet.AddSelector(".unity-button Label");
{
var widthProperty = m_StyleSheet.AddProperty(newSelector, "width");
var widthValue = m_StyleSheet.AddValue(widthProperty, 62);
m_StyleSheet.SetValue(widthValue, 82);
}
//
// Add USS contents.
//var selectorStrings = m_StyleSheet.GetSelectorStrings();
//foreach (var selectorString in selectorStrings)
//m_StyleSheetContents.Add(new Label(selectorString));
// Add USS string.
var ussString = m_StyleSheet.GenerateUSS();
m_StyleSheetContents.Add(new Label(ussString));
//m_Container.styleSheets.Add(m_StyleSheet);
}
}
void EnsureStylePropertyExists()
{
m_StyleProperty
??= GetStyleProperty(styleRule, propertyName)
?? styleSheet.AddProperty(styleRule, propertyName);
}
public static StyleProperty AddProperty(
this StyleSheet styleSheet, StyleComplexSelector selector, string name,
string undoMessage = null)
{
return(styleSheet.AddProperty(selector.rule, name, undoMessage));
}