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Add support for image watermarks

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This commit is contained in:
Jaume Pinyol 2017-01-24 19:14:34 +01:00
parent 2ccb6aa8a7
commit 1a661e4e52
9 changed files with 325 additions and 26 deletions
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23
vips_test.go
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@ -114,9 +114,26 @@ func TestVipsWatermark(t *testing.T) {
t.Errorf("Cannot add watermark: %s", err)
}
buf, err := vipsSave(newImg, vipsSaveOptions{Quality: 95})
if len(buf) == 0 || err != nil {
t.Fatalf("Empty image. %#v", err)
buf, _ := vipsSave(newImg, vipsSaveOptions{Quality: 95})
if len(buf) == 0 {
t.Fatal("Empty image")
}
}
func TestVipsWatermarkWithImage(t *testing.T) {
image, _, _ := vipsRead(readImage("test.jpg"))
watermark, _, _ := vipsRead(readImage("transparent.png"))
options := WatermarkImage{Left: 100, Top: 100, Opacity: 1.0}
newImg, err := vipsDrawWatermark(image, watermark, options)
if err != nil {
t.Errorf("Cannot add watermark: %s", err)
}
buf, _ := vipsSave(newImg, vipsSaveOptions{Quality: 95})
if len(buf) == 0 {
t.Fatal("Empty image")
}
}