feat(aihubmix): support nano banana (#11476)

support nano banana

src/renderer/src/pages/paintings/AihubmixPage.tsx

@@ -93,7 +93,7 @@ const AihubmixPage: FC<{ Options: string[] }> = ({ Options }) => {
   const getNewPainting = useCallback(() => {
     return {
       ...DEFAULT_PAINTING,
-      model: mode === 'aihubmix_image_generate' ? 'gpt-image-1' : 'V_3',
+      model: mode === 'aihubmix_image_generate' ? 'gemini-3-pro-image-preview' : 'V_3',
       id: uuid()
     }
   }, [mode])
@@ -201,6 +201,74 @@ const AihubmixPage: FC<{ Options: string[] }> = ({ Options }) => {
             updatePaintingState({ files: validFiles, urls: validFiles.map((file) => file.name) })
           }
           return
+        } else if (painting.model === 'gemini-3-pro-image-preview') {
+          const geminiUrl = `${aihubmixProvider.apiHost}/gemini/v1beta/models/gemini-3-pro-image-preview:streamGenerateContent`
+          const geminiHeaders = {
+            'Content-Type': 'application/json',
+            'x-goog-api-key': aihubmixProvider.apiKey
+          }
+
+          const requestBody = {
+            contents: [
+              {
+                parts: [
+                  {
+                    text: prompt
+                  }
+                ],
+                role: 'user'
+              }
+            ],
+            generationConfig: {
+              responseModalities: ['TEXT', 'IMAGE'],
+              imageConfig: {
+                aspectRatio: painting.aspectRatio?.replace('ASPECT_', '').replace('_', ':') || '1:1',
+                imageSize: painting.imageSize || '1k'
+              }
+            }
+          }
+
+          logger.silly(`Gemini Request: ${JSON.stringify(requestBody)}`)
+
+          const response = await fetch(geminiUrl, {
+            method: 'POST',
+            headers: geminiHeaders,
+            body: JSON.stringify(requestBody)
+          })
+
+          if (!response.ok) {
+            const errorData = await response.json()
+            logger.error('Gemini API Error:', errorData)
+            throw new Error(errorData.error?.message || '生成图像失败')
+          }
+
+          const data = await response.json()
+          logger.silly(`Gemini API Response: ${JSON.stringify(data)}`)
+
+          // Handle array response (stream) or single object
+          const responseItems = Array.isArray(data) ? data : [data]
+          const base64s: string[] = []
+
+          responseItems.forEach((item) => {
+            item.candidates?.forEach((candidate: any) => {
+              candidate.content?.parts?.forEach((part: any) => {
+                if (part.inlineData?.data) {
+                  base64s.push(part.inlineData.data)
+                }
+              })
+            })
+          })
+
+          if (base64s.length > 0) {
+            const validFiles = await Promise.all(
+              base64s.map(async (base64: string) => {
+                return await window.api.file.saveBase64Image(base64)
+              })
+            )
+            await FileManager.addFiles(validFiles)
+            updatePaintingState({ files: validFiles, urls: validFiles.map((file) => file.name) })
+          }
+          return
         } else if (painting.model === 'V_3') {
           // V3 API uses different endpoint and parameters format
           const formData = new FormData()

src/renderer/src/pages/paintings/config/aihubmixConfig.tsx

@@ -72,6 +72,7 @@ export const createModeConfigs = (): Record<AihubmixMode, ConfigItem[]> => {
             label: 'Gemini',
             title: 'Gemini',
             options: [
+              { label: 'Nano Banana Pro', value: 'gemini-3-pro-image-preview' },
               { label: 'imagen-4.0-preview', value: 'imagen-4.0-generate-preview-06-06' },
               { label: 'imagen-4.0-ultra', value: 'imagen-4.0-ultra-generate-preview-06-06' }
             ]
@@ -224,7 +225,20 @@ export const createModeConfigs = (): Record<AihubmixMode, ConfigItem[]> => {
           { label: '16:9', value: 'ASPECT_16_9' }
         ],
         initialValue: 'ASPECT_1_1',
-        condition: (painting) => Boolean(painting.model?.startsWith('imagen-'))
+        condition: (painting) =>
+          Boolean(painting.model?.startsWith('imagen-') || painting.model === 'gemini-3-pro-image-preview')
+      },
+      {
+        type: 'select',
+        key: 'imageSize',
+        title: 'paintings.image.size',
+        options: [
+          { label: '1K', value: '1K' },
+          { label: '2K', value: '2K' },
+          { label: '4K', value: '4K' }
+        ],
+        initialValue: '1K',
+        condition: (painting) => painting.model === 'gemini-3-pro-image-preview'
       },
       {
         type: 'select',
@@ -398,7 +412,7 @@ export const createModeConfigs = (): Record<AihubmixMode, ConfigItem[]> => {
 // 几种默认的绘画配置
 export const DEFAULT_PAINTING: PaintingAction = {
   id: 'aihubmix_1',
-  model: 'gpt-image-1',
+  model: 'gemini-3-pro-image-preview',
   aspectRatio: 'ASPECT_1_1',
   numImages: 1,
   styleType: 'AUTO',
@@ -420,5 +434,6 @@ export const DEFAULT_PAINTING: PaintingAction = {
   moderation: 'auto',
   n: 1,
   numberOfImages: 4,
-  safetyTolerance: 6
+  safetyTolerance: 6,
+  imageSize: '1K'
 }

src/renderer/src/types/index.ts

@@ -320,6 +320,7 @@ export interface GeneratePainting extends PaintingParams {
   safetyTolerance?: number
   width?: number
   height?: number
+  imageSize?: string
 }
 
 export interface EditPainting extends PaintingParams {