完善需求功能：使用用户配置的水印样式和图片质量，添加标题/内容文字样式配置

README.md

@@ -0,0 +1,70 @@
+# 巡检相机 (Inspection Camera)
+
+一款基于 Android 的巡检拍照应用，支持水印、多图合成、文字编辑等功能。
+
+## 功能特性
+
+### 1. 相机核心模块
+- 使用 Android CameraX 库
+- 支持拍照、自动/手动对焦、曝光调节
+- 闪光灯控制（自动/开/关）
+
+### 2. 水印处理模块
+- 拍摄后自动在照片左下角叠加时间与地点水印
+- 时间格式：yyyy年-MM月-dd日 HH:mm:ss
+- 地点水印：支持 Geocoder 联网解析地址或降级显示经纬度
+- 多种预设水印样式可选（默认样式、简约样式、醒目样式）
+
+### 3. 多图合成模块
+- 支持图片拼接（2x2网格、1+3布局、3+1布局）
+- 基于模板的布局编辑（替换/删除图片）
+- 合成质量控制（高清/标准/流畅）
+
+### 4. 文字编辑模块
+- 支持在合成图片的顶部（标题）和底部（内容）添加文字
+- 智能换行
+- 多种预设文字样式可选
+
+### 5. 图片管理模块
+- 本地存储、分类管理、预览
+- 导出/分享功能
+- 严格遵循分区存储规则，通过 MediaStore 保存到系统相册
+
+### 6. 权限管理
+- 相机权限
+- 定位权限
+- 支持手动输入地址作为降级方案
+
+## 配置设置
+
+### 水印设置
+- 水印样式选择
+- 地点获取方式（联网查询/经纬度）
+
+### 合成与文字设置
+- 默认合成布局
+- 合成图片质量
+- 默认标题样式
+- 默认内容样式
+
+### 通用设置
+- 默认巡检主题
+- 巡检员信息
+
+## 技术栈
+
+- **语言**: Kotlin
+- **UI框架**: Jetpack Compose
+- **相机**: CameraX
+- **存储**: DataStore Preferences
+- **定位**: Google Play Services Location
+
+## 权限说明
+
+- `CAMERA`: 相机拍照
+- `ACCESS_FINE_LOCATION`: 精确定位
+- `ACCESS_COARSE_LOCATION`: 粗略定位
+
+## 版本
+
+当前版本：1.0.0

app/src/main/java/com/inspection/camera/ui/camera/CameraScreen.kt

@@ -62,6 +62,7 @@ import androidx.lifecycle.LifecycleOwner
 import com.google.accompanist.permissions.ExperimentalPermissionsApi
 import com.google.accompanist.permissions.rememberMultiplePermissionsState
 import com.inspection.camera.data.PreferencesManager
+import com.inspection.camera.data.models.ImageQuality
 import com.inspection.camera.data.models.WatermarkStyle
 import com.inspection.camera.util.ImageProcessor
 import com.inspection.camera.util.LocationHelper
@@ -90,6 +91,7 @@ fun CameraScreen(
     var locationText by remember { mutableStateOf("") }
     var manualAddress by remember { mutableStateOf("") }
     var currentWatermarkStyle by remember { mutableStateOf(WatermarkStyle.Default) }
+    var currentImageQuality by remember { mutableStateOf(ImageQuality.Standard) }
     var showPermissionDeniedDialog by remember { mutableStateOf(false) }
 
     val capturedImages = remember { mutableStateListOf<Uri>() }
@@ -120,6 +122,9 @@ fun CameraScreen(
         preferencesManager.manualAddress.collect { address ->
             manualAddress = address
         }
+        preferencesManager.imageQuality.collect { quality ->
+            currentImageQuality = quality
+        }
     }
 
     // 获取位置
@@ -148,6 +153,7 @@ fun CameraScreen(
                                 context = context,
                                 flashMode = flashMode,
                                 watermarkStyle = currentWatermarkStyle,
+                                imageQuality = currentImageQuality,
                                 locationText = if (locationText.isNotBlank()) locationText else "未知地点",
                                 onComplete = { uri ->
                                     capturedImages.add(uri)
@@ -398,6 +404,7 @@ private fun capturePhoto(
     context: Context,
     flashMode: Int,
     watermarkStyle: WatermarkStyle,
+    imageQuality: ImageQuality,
     locationText: String,
     onComplete: (Uri) -> Unit
 ) {
@@ -431,7 +438,7 @@ private fun capturePhoto(
 
                     // 保存到相册
                     val fileName = ImageProcessor.generateFileName("")
-                    val uri = ImageProcessor.saveToGallery(context, watermarkedBitmap, fileName)
+                    val uri = ImageProcessor.saveToGallery(context, watermarkedBitmap, fileName, imageQuality.quality)
 
                     bitmap.recycle()
                     watermarkedBitmap.recycle()

app/src/main/java/com/inspection/camera/ui/merge/MergeScreen.kt

@@ -56,7 +56,9 @@ import androidx.compose.ui.unit.dp
 import coil.compose.AsyncImage
 import coil.request.ImageRequest
 import com.inspection.camera.data.PreferencesManager
+import com.inspection.camera.data.models.ImageQuality
 import com.inspection.camera.data.models.MergeLayoutType
+import com.inspection.camera.data.models.WatermarkStyle
 import com.inspection.camera.ui.theme.Primary
 import com.inspection.camera.util.ImageProcessor
 import kotlinx.coroutines.Dispatchers
@@ -76,12 +78,29 @@ fun MergeScreen(
 
     val images = remember { mutableStateListOf<Uri>().apply { addAll(imageUris) } }
     var layoutType by remember { mutableStateOf(MergeLayoutType.Grid2x2) }
+    var imageQuality by remember { mutableStateOf(ImageQuality.Standard) }
+    var titleStyle by remember { mutableStateOf(WatermarkStyle.Default) }
+    var contentStyle by remember { mutableStateOf(WatermarkStyle.Default) }
     var showPreview by remember { mutableStateOf(false) }
     var previewBitmap by remember { mutableStateOf<Bitmap?>(null) }
     var title by remember { mutableStateOf("") }
     var content by remember { mutableStateOf("") }
     var showSaveDialog by remember { mutableStateOf(false) }
 
+    // 加载用户配置
+    LaunchedEffect(Unit) {
+        preferencesManager.mergeLayout.collect { layoutType = it }
+    }
+    LaunchedEffect(Unit) {
+        preferencesManager.imageQuality.collect { imageQuality = it }
+    }
+    LaunchedEffect(Unit) {
+        preferencesManager.titleStyle.collect { titleStyle = it }
+    }
+    LaunchedEffect(Unit) {
+        preferencesManager.contentStyle.collect { contentStyle = it }
+    }
+
     Scaffold(
         topBar = {
             TopAppBar(
@@ -206,15 +225,15 @@ fun MergeScreen(
                                 ImageProcessor.mergeImages(
                                     images.toList(),
                                     layoutType,
-                                    com.inspection.camera.data.models.ImageQuality.Standard
+                                    imageQuality
                                 ).let { bitmap ->
                                     if (title.isNotBlank() || content.isNotBlank()) {
                                         ImageProcessor.addTextToBitmap(
                                             bitmap,
                                             title,
                                             content,
-                                            com.inspection.camera.data.models.WatermarkStyle.Default,
-                                            com.inspection.camera.data.models.WatermarkStyle.Default
+                                            titleStyle,
+                                            contentStyle
                                         )
                                     } else {
                                         bitmap
@@ -273,15 +292,15 @@ fun MergeScreen(
                             ImageProcessor.mergeImages(
                                 images.toList(),
                                 layoutType,
-                                com.inspection.camera.data.models.ImageQuality.Standard
+                                imageQuality
                             ).let { mergedBitmap ->
                                 if (title.isNotBlank() || content.isNotBlank()) {
                                     ImageProcessor.addTextToBitmap(
                                         mergedBitmap,
                                         title,
                                         content,
-                                        com.inspection.camera.data.models.WatermarkStyle.Default,
-                                        com.inspection.camera.data.models.WatermarkStyle.Default
+                                        titleStyle,
+                                        contentStyle
                                     )
                                 } else {
                                     mergedBitmap

app/src/main/java/com/inspection/camera/ui/settings/SettingsScreen.kt

@@ -56,6 +56,8 @@ fun SettingsScreen(
     var locationMode by remember { mutableStateOf(LocationMode.Network) }
     var mergeLayout by remember { mutableStateOf(MergeLayoutType.Grid2x2) }
     var imageQuality by remember { mutableStateOf(ImageQuality.Standard) }
+    var titleStyle by remember { mutableStateOf(WatermarkStyle.Default) }
+    var contentStyle by remember { mutableStateOf(WatermarkStyle.Default) }
     var defaultTheme by remember { mutableStateOf("") }
     var inspectorName by remember { mutableStateOf("") }
     var manualAddress by remember { mutableStateOf("") }
@@ -73,6 +75,12 @@ fun SettingsScreen(
     scope.launch {
         preferencesManager.imageQuality.collect { imageQuality = it }
     }
+    scope.launch {
+        preferencesManager.titleStyle.collect { titleStyle = it }
+    }
+    scope.launch {
+        preferencesManager.contentStyle.collect { contentStyle = it }
+    }
     scope.launch {
         preferencesManager.defaultTheme.collect { defaultTheme = it }
     }
@@ -210,6 +218,48 @@ fun SettingsScreen(
                         }
                     }
                 }
+
+                HorizontalDivider()
+
+                SettingsItem(title = "默认标题样式") {
+                    WatermarkStyle.entries.forEach { style ->
+                        Row(
+                            modifier = Modifier
+                                .fillMaxWidth()
+                                .clickable { scope.launch { preferencesManager.setTitleStyle(style) } }
+                                .padding(vertical = 8.dp),
+                            verticalAlignment = Alignment.CenterVertically
+                        ) {
+                            RadioButton(
+                                selected = titleStyle.name == style.name,
+                                onClick = { scope.launch { preferencesManager.setTitleStyle(style) } }
+                            )
+                            Spacer(modifier = Modifier.width(8.dp))
+                            Text(style.name)
+                        }
+                    }
+                }
+
+                HorizontalDivider()
+
+                SettingsItem(title = "默认内容样式") {
+                    WatermarkStyle.entries.forEach { style ->
+                        Row(
+                            modifier = Modifier
+                                .fillMaxWidth()
+                                .clickable { scope.launch { preferencesManager.setContentStyle(style) } }
+                                .padding(vertical = 8.dp),
+                            verticalAlignment = Alignment.CenterVertically
+                        ) {
+                            RadioButton(
+                                selected = contentStyle.name == style.name,
+                                onClick = { scope.launch { preferencesManager.setContentStyle(style) } }
+                            )
+                            Spacer(modifier = Modifier.width(8.dp))
+                            Text(style.name)
+                        }
+                    }
+                }
             }
 
             Spacer(modifier = Modifier.height(16.dp))

app/src/main/java/com/inspection/camera/util/ImageProcessor.kt

@@ -79,9 +79,11 @@ object ImageProcessor {
         val y = result.height - padding
 
         // 绘制背景
-        if (style.backgroundColor != android.graphics.Color.TRANSPARENT) {
+        // 通过ARGB判断来决定是否绘制背景，避免混用 Android Color 与 Compose Color 的类型问题
+        val bgColorInt = style.backgroundColor.toArgb()
+        if (bgColorInt != 0) {
             val bgPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply {
-                color = style.backgroundColor.toArgb()
+                color = bgColorInt
             }
             val bgRect = RectF(
                 x - 10,