QPixmap
The QPixmap class helps hold an image in the form of off-screen image representation.
This class is a JS wrapper around Qt's QPixmap class
A QPixmap provides ability to store an image in the memory.
Example
const { QPixmap } = require("@nodegui/nodegui");
const imageUrl = "path/to/png";
const pixMap = new QPixmap(imageUrl);
Hierarchy
-
↳ QPixmap
Index
Constructors
Properties
Methods
- convertFromImage
- height
- load
- loadFromData
- save
- scaled
- setDevicePixelRatio
- width
- fromImage
- fromQVariant
Constructors
constructor
+ new QPixmap(): QPixmap
Overrides Component.constructor
Returns: QPixmap
+ new QPixmap(native: NativeElement): QPixmap
Overrides Component.constructor
Parameters:
| Name | Type |
|---|---|
native | NativeElement |
Returns: QPixmap
+ new QPixmap(filePath: string): QPixmap
Overrides Component.constructor
Parameters:
| Name | Type |
|---|---|
filePath | string |
Returns: QPixmap
Properties
native
• native: NativeElement | null
Inherited from Component.native
Methods
convertFromImage
▸ convertFromImage(image: QImage, flags: ImageConversionFlag): boolean
Parameters:
| Name | Type |
|---|---|
image | QImage |
flags | ImageConversionFlag |
Returns: boolean
height
▸ height(): number
Returns: number
load
▸ load(imagePath: string): boolean
Parameters:
| Name | Type |
|---|---|
imagePath | string |
Returns: boolean
loadFromData
▸ loadFromData(buffer: Buffer, format?: ImageFormats): boolean
Parameters:
| Name | Type |
|---|---|
buffer | Buffer |
format? | ImageFormats |
Returns: boolean
save
▸ save(fileName: string, format?: ImageFormats): boolean
Parameters:
| Name | Type |
|---|---|
fileName | string |
format? | ImageFormats |
Returns: boolean
scaled
▸ scaled(width: number, height: number, aspectRatioMode?: AspectRatioMode, transformationMode?: TransformationMode): QPixmap
Parameters:
| Name | Type |
|---|---|
width | number |
height | number |
aspectRatioMode? | AspectRatioMode |
transformationMode? | TransformationMode |
Returns: QPixmap
setDevicePixelRatio
▸ setDevicePixelRatio(ratio: number): void
Sets the device pixel ratio for the image. This is the ratio between image pixels and device-independent pixels
Parameters:
| Name | Type |
|---|---|
ratio | number |
Returns: void
width
▸ width(): number
Returns: number
Static fromImage
▸ fromImage(image: QImage, flags: ImageConversionFlag): QPixmap
Parameters:
| Name | Type |
|---|---|
image | QImage |
flags | ImageConversionFlag |
Returns: QPixmap
Static fromQVariant
▸ fromQVariant(variant: QVariant): QPixmap
Parameters:
| Name | Type |
|---|---|
variant | QVariant |
Returns: QPixmap