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optimization: change the configuration file from being read globally … (#1935)
* optimization: change the configuration file from being read globally to being read independently. * optimization: change the configuration file from being read globally to being read independently. * optimization: change the configuration file from being read globally to being read independently. * optimization: config file changed to dependency injection. * fix: replace global config with dependency injection * fix: replace global config with dependency injection * fix: import the enough param * fix: import the enough param * fix: import the enough param * fix: fix the component check of path * fix: fix the kafka of tls is nil problem * fix: fix the TLS.CACrt is nil error * fix: fix the valiable shadows problem * fix: fix the comflect * optimization: message remove options. * fix: fix the param pass error * fix: find error * fix: find error * fix: find eror * fix: find error * fix: find error * fix: del the undifined func * fix: find error * fix: fix the error * fix: pass config * fix: find error * fix: find error * fix: find error * fix: find error * fix: find error * fix: fix the config * fix: fix the error * fix: fix the config pass error * fix: fix the eror * fix: fix the error * fix: fix the error * fix: fix the error * fix: find error * fix: fix the error * fix: fix the config * fix: add return err * fix: fix the err2 * fix: err * fix: fix the func * fix: del the chinese comment * fix: fix the func * fix: fix the gateway_test logic * fix: s3 * test * test * fix: not found --------- Co-authored-by: luhaoling <2198702716@qq.com> Co-authored-by: withchao <993506633@qq.com>
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@@ -42,51 +42,79 @@ func ImageWidthHeight(img image.Image) (int, int) {
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return bounds.X, bounds.Y
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}
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// resizeImage resizes an image to a specified maximum width and height, maintaining the aspect ratio.
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// If both maxWidth and maxHeight are set to 0, the original image is returned.
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// If both are non-zero, the image is scaled to fit within the constraints while maintaining aspect ratio.
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// If only one of maxWidth or maxHeight is non-zero, the image is scaled accordingly.
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func resizeImage(img image.Image, maxWidth, maxHeight int) image.Image {
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bounds := img.Bounds()
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imgWidth, imgHeight := bounds.Dx(), bounds.Dy()
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imgWidth := bounds.Max.X
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imgHeight := bounds.Max.Y
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// Return original image if no resizing is needed.
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// 计算缩放比例
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scaleWidth := float64(maxWidth) / float64(imgWidth)
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scaleHeight := float64(maxHeight) / float64(imgHeight)
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// 如果都为0,则不缩放,返回原始图片
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if maxWidth == 0 && maxHeight == 0 {
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return img
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}
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var scale float64 = 1
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// 如果宽度和高度都大于0,则选择较小的缩放比例,以保持宽高比
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if maxWidth > 0 && maxHeight > 0 {
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scaleWidth := float64(maxWidth) / float64(imgWidth)
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scaleHeight := float64(maxHeight) / float64(imgHeight)
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// Choose the smaller scale to fit both constraints.
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scale = min(scaleWidth, scaleHeight)
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} else if maxWidth > 0 {
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scale = float64(maxWidth) / float64(imgWidth)
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} else if maxHeight > 0 {
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scale = float64(maxHeight) / float64(imgHeight)
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}
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newWidth := int(float64(imgWidth) * scale)
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newHeight := int(float64(imgHeight) * scale)
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// Resize the image by creating a new image and manually copying pixels.
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thumbnail := image.NewRGBA(image.Rect(0, 0, newWidth, newHeight))
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for y := 0; y < newHeight; y++ {
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for x := 0; x < newWidth; x++ {
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srcX := int(float64(x) / scale)
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srcY := int(float64(y) / scale)
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thumbnail.Set(x, y, img.At(srcX, srcY))
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scale := scaleWidth
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if scaleHeight < scaleWidth {
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scale = scaleHeight
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}
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// 计算缩略图尺寸
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thumbnailWidth := int(float64(imgWidth) * scale)
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thumbnailHeight := int(float64(imgHeight) * scale)
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// 使用"image"库的Resample方法生成缩略图
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thumbnail := image.NewRGBA(image.Rect(0, 0, thumbnailWidth, thumbnailHeight))
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for y := 0; y < thumbnailHeight; y++ {
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for x := 0; x < thumbnailWidth; x++ {
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srcX := int(float64(x) / scale)
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srcY := int(float64(y) / scale)
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thumbnail.Set(x, y, img.At(srcX, srcY))
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}
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}
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return thumbnail
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}
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return thumbnail
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}
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// 如果只指定了宽度或高度,则根据最大不超过的规则生成缩略图
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if maxWidth > 0 {
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thumbnailWidth := maxWidth
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thumbnailHeight := int(float64(imgHeight) * scaleWidth)
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// min returns the smaller of x or y.
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func min(x, y float64) float64 {
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if x < y {
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return x
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// 使用"image"库的Resample方法生成缩略图
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thumbnail := image.NewRGBA(image.Rect(0, 0, thumbnailWidth, thumbnailHeight))
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for y := 0; y < thumbnailHeight; y++ {
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for x := 0; x < thumbnailWidth; x++ {
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srcX := int(float64(x) / scaleWidth)
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srcY := int(float64(y) / scaleWidth)
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thumbnail.Set(x, y, img.At(srcX, srcY))
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}
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}
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return thumbnail
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}
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return y
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if maxHeight > 0 {
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thumbnailWidth := int(float64(imgWidth) * scaleHeight)
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thumbnailHeight := maxHeight
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// 使用"image"库的Resample方法生成缩略图
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thumbnail := image.NewRGBA(image.Rect(0, 0, thumbnailWidth, thumbnailHeight))
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for y := 0; y < thumbnailHeight; y++ {
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for x := 0; x < thumbnailWidth; x++ {
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srcX := int(float64(x) / scaleHeight)
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srcY := int(float64(y) / scaleHeight)
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thumbnail.Set(x, y, img.At(srcX, srcY))
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}
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}
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return thumbnail
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}
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// 默认情况下,返回原始图片
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return img
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}
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