Tree Widget - support Default tree item

examples/d3d/src/d3d.d

@@ -22,6 +22,17 @@ extern (C) int UIAppMain(string[] args) {
             backgroundColor: "#C0E0E070" // semitransparent yellow background
             // red bold text with size = 150% of base style size and font face Arial
             TextWidget { text: "Hello World example for DlangUI"; textColor: "red"; fontSize: 150%; fontWeight: 800; fontFace: "Arial" }
+            HorizontalLayout {
+                layoutWidth: fill
+                TextWidget { text: "Text 20%"; backgroundColor:"#80FF0000"; layoutWidth: 20% }
+                VerticalLayout {
+                    layoutWidth: 30%
+                    TextWidget { text: "Text 30%"; backgroundColor:"#80FF00FF" }
+                    TextWidget { text: "Text 30%"; backgroundColor:"#8000FFFF" }
+                    TextWidget { text: "Text 30%"; backgroundColor:"#8000FFFF" }
+                }
+                TextWidget { text: "Text 50%"; backgroundColor:"#80FFFF00"; layoutWidth: 50% }
+            }
             // arrange controls as form - table with two columns
             TableLayout {
                 colCount: 2

src/dlangui/widgets/styles.d

@@ -1217,6 +1217,16 @@ FontFamily decodeFontFamily(string s) {
     return FontFamily.SansSerif;
 }
 
+/// decode FontWeight item name to value
+FontWeight decodeFontWeight(string s) {
+    if (s.equal("bold"))
+        return FontWeight.Bold;
+    if (s.equal("normal"))
+        return FontWeight.Normal;
+    Log.e("unknown font weight ", s);
+    return FontWeight.Normal;
+}
+
 /// decode layout dimension (FILL_PARENT, WRAP_CONTENT, or just size)
 int decodeLayoutDimension(string s) {
     if (s.equal("FILL_PARENT") || s.equal("fill"))
@@ -1262,6 +1272,8 @@ bool loadStyleAttributes(Style style, Element elem, bool allowStates) {
         style.fontFamily = decodeFontFamily(elem.tag.attr["fontFamily"]);
     if ("fontSize" in elem.tag.attr)
         style.fontSize = cast(int)decodeDimension(elem.tag.attr["fontSize"]);
+    if ("fontWeight" in elem.tag.attr)
+        style.fontWeight = cast(ushort)decodeFontWeight(elem.tag.attr["fontWeight"]);
     if ("layoutWidth" in elem.tag.attr)
         style.layoutWidth = decodeLayoutDimension(elem.tag.attr["layoutWidth"]);
     if ("layoutHeight" in elem.tag.attr)

src/dlangui/widgets/tree.d

@@ -184,10 +184,18 @@ class TreeItem {
         return root.selectedItem();
     }
 
-    bool isSelected() {
+    @property TreeItem defaultItem() {
+        return root.defaultItem();
+    }
+
+    @property bool isSelected() {
         return (selectedItem is this);
     }
 
+    @property bool isDefault() {
+        return (defaultItem is this);
+    }
+
     /// get widget text
     @property dstring text() { return _text; }
     /// set text to show
@@ -344,6 +352,7 @@ class TreeItems : TreeItem {
     @property TreeItems noCollapseForSingleTopLevelItem(bool flg) { _noCollapseForSingleTopLevelItem = flg; return this; }
 
     protected TreeItem _selectedItem;
+    protected TreeItem _defaultItem;
 
     this() {
         super("tree");
@@ -400,6 +409,12 @@ class TreeItems : TreeItem {
             selectionListener(this, _selectedItem, false);
     }
 
+    void setDefaultItem(TreeItem item) {
+        _defaultItem = item;
+        if (stateListener.assigned)
+            stateListener(this);
+    }
+
     override void activateItem(TreeItem item) {
         if (!(_selectedItem is item)) {
             _selectedItem = item;
@@ -414,6 +429,10 @@ class TreeItems : TreeItem {
         return _selectedItem;
     }
 
+    @property override TreeItem defaultItem() {
+        return _defaultItem;
+    }
+
     void selectNext() {
         if (!hasChildren)
             return;
@@ -647,6 +666,10 @@ class TreeItemWidget : HorizontalLayout {
             setState(State.Selected);
         else
             resetState(State.Selected);
+        if (_item.isDefault)
+            setState(State.Default);
+        else
+            resetState(State.Default);
     }
 }
 

views/res/theme_default.xml

@@ -422,8 +422,9 @@
         layoutWidth="FILL_PARENT"
         layoutHeight="WRAP_CONTENT"
         align="Left|VCenter"
-        textFlags="Parent"
-    />
+        textFlags="Parent">
+        <state state_default="true" fontWeight="bold"/>
+    </style>
 
     <style id="SETTINGS_TREE"
         margins="8,8,8,8"