change preset

decode.go

@@ -1,30 +1,30 @@
 package imageflow
 
 // Decode is used to create a decode node in graph
-type Decode struct {
+type decode struct {
 	IoID int `json:"io_id"`
 }
 
 // toStep is used to convert a Decode to step
-func (decode Decode) toStep() map[string]interface{} {
+func (decode decode) toStep() map[string]interface{} {
 	decodeMap := make(map[string]interface{})
 	decodeMap["decode"] = decode
 	return decodeMap
 }
 
 // Preset is a interface for encoder used to convert to image
-type Preset interface {
+type presetInterface interface {
 	toPreset() interface{}
 }
 
 // Encode is used to convert to a image
-type Encode struct {
+type encode struct {
 	IoID   int         `json:"io_id"`
 	Preset interface{} `json:"preset"`
 }
 
 // toStep is used to convert a Encode to step
-func (encode Encode) toStep() interface{} {
+func (encode encode) toStep() interface{} {
 	encodeMap := make(map[string]interface{})
 	encodeMap["encode"] = encode
 	return encodeMap
@@ -38,7 +38,7 @@ type MozJPEG struct {
 
 // toPreset is used to convert the MozJPG to a preset
 func (preset MozJPEG) toPreset() interface{} {
-	presetMap := make(map[string]Preset)
+	presetMap := make(map[string]presetInterface)
 	if preset.Quality == 0 {
 		preset.Quality = 100
 	}
@@ -61,7 +61,7 @@ type LosslessPNG struct {
 
 // toPreset is used to LosslessPNG to Preset
 func (preset LosslessPNG) toPreset() interface{} {
-	presetMap := make(map[string]Preset)
+	presetMap := make(map[string]presetInterface)
 	presetMap["lodepng"] = preset
 	return presetMap
 }
@@ -76,7 +76,7 @@ type LossyPNG struct {
 
 // toPreset is used to convert LossPNG to preset
 func (preset LossyPNG) toPreset() interface{} {
-	presetMap := make(map[string]Preset)
+	presetMap := make(map[string]presetInterface)
 	presetMap["pngquant"] = preset
 	return presetMap
 }
@@ -91,7 +91,7 @@ func (preset WebP) toPreset() interface{} {
 	if preset.Quality == 0 {
 		preset.Quality = 100
 	}
-	presetMap := make(map[string]Preset)
+	presetMap := make(map[string]presetInterface)
 	presetMap["webplossy"] = preset
 	return presetMap
 }
@@ -205,7 +205,7 @@ func (step Constrain) toStep() interface{} {
 	if step.CanvasColor != nil {
 		step.CanvasColor = step.CanvasColor.(Color).toColor()
 	}
-	stepMap := make(map[string]Step)
+	stepMap := make(map[string]stepInterface)
 	stepMap["constrain"] = step
 	return stepMap
 }
@@ -223,7 +223,7 @@ type Region struct {
 // toStep create a step from Region
 func (region Region) toStep() interface{} {
 	region.BackgroundColor = region.BackgroundColor.(Color).toColor()
-	stepMap := make(map[string]Step)
+	stepMap := make(map[string]stepInterface)
 	stepMap["region"] = region
 	return stepMap
 }
@@ -241,7 +241,7 @@ type RegionPercentage struct {
 // toStep create a step from Region
 func (region RegionPercentage) toStep() interface{} {
 	region.BackgroundColor = region.BackgroundColor.(Color).toColor()
-	stepMap := make(map[string]Step)
+	stepMap := make(map[string]stepInterface)
 	stepMap["region_percent"] = region
 	return stepMap
 }
@@ -256,7 +256,7 @@ type cropWhitespace struct {
 
 // toStep create a step from Region
 func (region cropWhitespace) toStep() interface{} {
-	stepMap := make(map[string]Step)
+	stepMap := make(map[string]stepInterface)
 	stepMap["crop_whitespace"] = region
 	return stepMap
 }
@@ -312,7 +312,7 @@ type fillRect struct {
 
 // toStep create a step from fillRect
 func (region fillRect) toStep() interface{} {
-	stepMap := make(map[string]Step)
+	stepMap := make(map[string]stepInterface)
 	region.Color = region.Color.(Color).toColor()
 	stepMap["fill_rect"] = region
 	return stepMap
@@ -329,7 +329,7 @@ type ExpandCanvas struct {
 
 // toStep create a step from fillRect
 func (region ExpandCanvas) toStep() interface{} {
-	stepMap := make(map[string]Step)
+	stepMap := make(map[string]stepInterface)
 	region.Color = region.Color.(Color).toColor()
 	stepMap["expand_canvas"] = region
 	return stepMap
@@ -390,7 +390,7 @@ func (watermark watermark) toStep() interface{} {
 	if watermark.FitBox != nil {
 		watermark.FitBox = watermark.FitBox.(FitBox).toFitBox()
 	}
-	stepMap := make(map[string]Step)
+	stepMap := make(map[string]stepInterface)
 	if watermark.Gravity != nil {
 		watermark.Gravity = watermark.Gravity.(ConstraintGravity).toGravity()
 	}

imageflow.go

@@ -19,7 +19,7 @@ type Steps struct {
 func (steps *Steps) Decode(task ioOperation) *Steps {
 	steps.inputs = append(steps.inputs, task)
 	task.setIo(uint(steps.ioID))
-	steps.vertex = append(steps.vertex, Decode{
+	steps.vertex = append(steps.vertex, decode{
 		IoID: steps.ioID,
 	}.toStep())
 	steps.ioID++
@@ -61,10 +61,10 @@ func constrainWithinMap(w interface{}, h interface{}) map[string]interface{} {
 }
 
 // Encode is used to convert the image
-func (steps *Steps) Encode(task ioOperation, preset Preset) *Steps {
+func (steps *Steps) Encode(task ioOperation, preset presetInterface) *Steps {
 	task.setIo(uint(steps.ioID))
 	steps.outputs = append(steps.outputs, task)
-	steps.input(Encode{
+	steps.input(encode{
 		IoID:   steps.ioID,
 		Preset: preset.toPreset(),
 	}.toStep())
@@ -113,7 +113,7 @@ func (steps *Steps) input(step interface{}) {
 	steps.last = uint(len(steps.vertex) - 1)
 }
 
-func (steps *Steps) canvas(f func(*Steps), step Step) *Steps {
+func (steps *Steps) canvas(f func(*Steps), step stepInterface) *Steps {
 	last := steps.last
 	f(steps)
 	steps.vertex = append(steps.vertex, step.toStep())
@@ -322,7 +322,7 @@ func (steps *Steps) colorFilterSRGBValue(name string, value float32) *Steps {
 }
 
 // Step specify different nodes
-type Step interface {
+type stepInterface interface {
 	toStep() interface{}
 }