Refactor axis title to use AAAxisTitle type

Changed axis title property in AAAxis, AAXAxis, and AAYAxis to use AAAxisTitle instead of AATitle for better type clarity. Deprecated old title methods accepting AATitle, added conversion logic for backward compatibility, and updated AATitle and AASubtitle properties to be public for easier access.

Author: AAChartModel

charts/src/main/java/com/github/aachartmodel/aainfographics/aaoptionsmodel/AAAxis.kt

@@ -12,7 +12,7 @@ enum class AAChartAxisType(val value: String) {
     var allowDecimals: Boolean? = null
     var alternateGridColor: Any? = null
     var crosshair: AACrosshair? = null //准星线样式设置
-    var title: AATitle? = null
+    var title: AAAxisTitle? = null
     var type: String? = null
     var dateTimeLabelFormats: AADateTimeLabelFormats? = null
     var plotBands: Array<AAPlotBandsElement>? = null

charts/src/main/java/com/github/aachartmodel/aainfographics/aaoptionsmodel/AASubtitle.kt

@@ -13,13 +13,13 @@ import com.github.aachartmodel.aainfographics.aachartcreator.AAChartVerticalAlig
 
 
 class AASubtitle {
-    private var text: String? = null
-    private var style: AAStyle? = null
-    private var align: String? = null
-    private var verticalAlign: String? = null
-    private var x: Number? = null
-    private var y: Number? = null
-    private var userHTML: Boolean? = null
+    var text: String? = null
+    var style: AAStyle? = null
+    var align: String? = null
+    var verticalAlign: String? = null
+    var x: Number? = null
+    var y: Number? = null
+    var userHTML: Boolean? = null
 
     fun text(prop: String?): AASubtitle {
         text = prop

charts/src/main/java/com/github/aachartmodel/aainfographics/aaoptionsmodel/AATitle.kt

@@ -12,13 +12,13 @@ import com.github.aachartmodel.aainfographics.aachartcreator.AAChartAlignType
 import com.github.aachartmodel.aainfographics.aachartcreator.AAChartVerticalAlignType
 
 class AATitle {
-    private var text: String? = null
-    private var style: AAStyle? = null
-    private var align: String? = null
-    private var verticalAlign: String? = null
-    private var x: Number? = null
-    private var y: Number? = null
-    private var userHTML: Boolean? = null
+    var text: String? = null
+    var style: AAStyle? = null
+    var align: String? = null
+    var verticalAlign: String? = null
+    var x: Number? = null
+    var y: Number? = null
+    var userHTML: Boolean? = null
 
     fun text(prop: String?): AATitle {
         text = prop

charts/src/main/java/com/github/aachartmodel/aainfographics/aaoptionsmodel/AAXAxis.kt

@@ -25,11 +25,37 @@ open class AAXAxis: AAAxis() {
         return this
     }
 
-    fun title(prop: AATitle): AAXAxis {
+    fun title(prop: AAAxisTitle): AAXAxis {
         title = prop
         return this
     }
 
+
+    // 为了保持向后兼容性，添加对 AATitle 的支持
+    // 同时添加方法废弃警告⚠️, 提示用户使用新的 AAAxisTitle 类型
+    @Deprecated("Use `fun title(prop: AAAxisTitle): AAXAxis` instead. AATitle is deprecated for axis titles.")
+    fun title(prop: AATitle?): AAXAxis {
+        if (prop != null) {
+            // 将AATitle转换为AAAxisTitle
+            val axisTitle = AAAxisTitle()
+                .text(prop.text)
+                .style(prop.style)
+
+            // 如果AATitle有x和y属性, 也将它们设置到AAAxisTitle中
+            prop.x?.let { x ->
+                axisTitle.x(x)
+            }
+            prop.y?.let { y ->
+                axisTitle.y(y)
+            }
+
+            title = axisTitle
+        } else {
+            title = null
+        }
+        return this
+    }
+
     fun type(prop: AAChartAxisType): AAXAxis {
         type = prop.value
         return this

charts/src/main/java/com/github/aachartmodel/aainfographics/aaoptionsmodel/AAYAxis.kt

@@ -31,11 +31,36 @@ open class AAYAxis: AAAxis() {
         return this
     }
 
-    fun title(prop: AATitle): AAYAxis {
+    fun title(prop: AAAxisTitle): AAYAxis {
         title = prop
         return this
     }
 
+    // 为了保持向后兼容性，添加对 AATitle 的支持
+    // 同时添加方法废弃警告⚠️, 提示用户使用新的 AAAxisTitle 类型
+    @Deprecated("Use `fun title(prop: AAAxisTitle): AAYAxis` instead. AATitle is deprecated for axis titles.")
+    fun title(prop: AATitle?): AAYAxis {
+        if (prop != null) {
+            // 将AATitle转换为AAAxisTitle
+            val axisTitle = AAAxisTitle()
+                .text(prop.text)
+                .style(prop.style)
+
+            // 如果AATitle有x和y属性, 也将它们设置到AAAxisTitle中
+            prop.x?.let { x ->
+                axisTitle.x(x)
+            }
+            prop.y?.let { y ->
+                axisTitle.y(y)
+            }
+
+            title = axisTitle
+        } else {
+            title = null
+        }
+        return this
+    }
+
     fun type(prop: AAChartAxisType): AAYAxis {
         type = prop.value
         return this