javascript/NativeScript
1
0
Fork 0
mirror of https://github.com/NativeScript/NativeScript.git synced 2025-08-16 20:11:24 +08:00
Code Issues Packages Projects Releases Wiki Activity

Polished the Image module. Added API reference.

Browse Source
This commit is contained in:
atanasovg
2014-05-09 17:40:08 +03:00
parent a4ddb134fd
commit 7aa70fb14c
3 changed files with 135 additions and 74 deletions
Download Patch File Download Diff File Expand all files Collapse all files

61
Image/image.android.ts
View File

@ -1,37 +1,17 @@
import appModule = require("Application/application");
export enum ImageType {
PNG = 0,
JPEG = 1,
export enum ImageFormat {
PNG,
JPEG,
}
export class Image {
public android: any;
public android: android.graphics.Bitmap;
constructor() {
this.android = null;
}
public static imageFromResource(name: string): Image {
var image = new Image();
return image.loadFromResource(name) ? image : null;
}
public static imageFromFile(path: string): Image {
var image = new Image();
return image.loadFromFile(path) ? image : null;
}
public static imageFromData(data: any): Image {
var image = new Image();
return image.loadFromData(data) ? image : null;
}
public static imageFromNativeBitmap(source: any): Image {
var image = new Image();
return image.loadFromNativeBitmap(source) ? image : null;
}
public loadFromResource(name: string): boolean {
var androidApp = appModule.current.android;
var res = androidApp.context.getResources();
@ -55,16 +35,16 @@ export class Image {
return (this.android != null);
}
public loadFromNativeBitmap(source: any): boolean {
public setNativeBitmap(source: any): boolean {
this.android = source;
return (this.android != null);
}
public saveToFile(path: string, format: ImageType, quality?: number): boolean {
public saveToFile(path: string, format: ImageFormat, quality?: number): boolean {
if (this.android) {
var targetFormat = android.graphics.Bitmap.CompressFormat.PNG;
switch (format) {
case ImageType.JPEG:
case ImageFormat.JPEG:
targetFormat = android.graphics.Bitmap.CompressFormat.JPEG;
break;
}
@ -72,7 +52,7 @@ export class Image {
// TODO add exception handling
var outputStream = new java.io.BufferedOutputStream(new java.io.FileOutputStream(path));
if (!quality) {
if (typeof quality == "undefined") {
quality = 100;
}
@ -83,11 +63,32 @@ export class Image {
return false;
}
public getHeight(): number {
get height(): number {
return (this.android) ? this.android.getHeight() : NaN;
}
public getWidth(): number {
get width(): number {
return (this.android) ? this.android.getWidth() : NaN;
}
}
// TODO: These functions are the same in each platform, think for some common code separation
export function fromResource(name: string): Image {
var image = new Image();
return image.loadFromResource(name) ? image : null;
}
export function fromFile(path: string): Image {
var image = new Image();
return image.loadFromFile(path) ? image : null;
}
export function fromData(data: any): Image {
var image = new Image();
return image.loadFromData(data) ? image : null;
}
export function fromNativeBitmap(source: any): Image {
var image = new Image();
return image.setNativeBitmap(source) ? image : null;
}

87
Image/image.d.ts vendored
View File

@ -1,20 +1,79 @@
export declare enum ImageType {
PNG = 0,
JPEG = 1,
/**
* Defines the recognized image formats.
*/
export declare enum ImageFormat {
PNG,
JPEG,
}
/**
* Encapsulates the common abstraction behind a platform specific image object.
*/
export declare class Image {
static imageFromResource(name: string): Image;
static imageFromFile(path: string): Image;
static imageFromData(data: any): Image;
static imageFromNativeBitmap(source: any): Image;
/**
* Gets the height of this instance. This is a read-only property.
*/
height: number;
/**
* Gets the width of this instance. This is a read-only property.
*/
width: number;
/**
* The iOS-specific image instance. Will be undefined when running on Android.
*/
ios: UIKit.UIImage;
/**
* The Android-specific image instance. Will be undefined when running on iOS.
*/
android: android.graphics.Bitmap;
/**
* Loads this instance from the specified resource name.
*/
loadFromResource(name: string): boolean;
loadFromFile(path: string): boolean;
loadFromData(data: any): boolean;
loadFromNativeBitmap(source: any): boolean;
saveToFile(path: string, format: ImageType, quality?: number): boolean;
getHeight(): number;
getWidth(): number;
}
/**
* Loads this instance from the specified file.
*/
loadFromFile(path: string): boolean;
/**
* Loads this instance from the specified native image data.
*/
loadFromData(data: any): boolean;
/**
* Sets the provided native bitmap object.
* This will update either the android or ios properties, depending on the target os.
*/
setNativeBitmap(source: any): boolean;
/**
* Saves this instance to the specified file, using the provided image format and quality.
*/
saveToFile(path: string, format: ImageFormat, quality?: number): boolean;
}
/**
* Creates a new Image instance and loads it from the specified resource name.
*/
export declare function fromResource(name: string): Image;
/**
* Creates a new Image instance and loads it from the specified file.
*/
export declare function fromFile(path: string): Image;
/**
* Creates a new Image instance and loads it from the specified resource name.
*/
export declare function fromData(data: any): Image;
/**
* Creates a new Image instance and sets the provided native bitmap object.
* The native bitmap object will update either the android or ios properties, depending on the target os.
*/
export declare function fromNativeBitmap(source: any): Image;

61
Image/image.ios.ts
View File

@ -1,35 +1,15 @@
export enum ImageType {
PNG = 0,
JPEG = 1,
export enum ImageFormat {
PNG,
JPEG,
}
export class Image {
public ios: any;
public ios: UIKit.UIImage;
constructor() {
this.ios = null;
}
public static imageFromResource(name: string): Image {
var image = new Image();
return image.loadFromResource(name) ? image : null;
}
public static imageFromFile(path: string): Image {
var image = new Image();
return image.loadFromFile(path) ? image : null;
}
public static imageFromData(data: any): Image {
var image = new Image();
return image.loadFromData(data) ? image : null;
}
public static imageFromNativeBitmap(source: any): Image {
var image = new Image();
return image.loadFromNativeBitmap(source) ? image : null;
}
public loadFromResource(name: string): boolean {
this.ios = UIKit.UIImage.imageNamed(name);
return (this.ios != null);
@ -45,22 +25,22 @@ export class Image {
return (this.ios != null);
}
public loadFromNativeBitmap(source: any): boolean {
public setNativeBitmap(source: any): boolean {
this.ios = source;
return (this.ios != null);
}
public saveToFile(path: string, format: ImageType, quality?: number): boolean {
public saveToFile(path: string, format: ImageFormat, quality?: number): boolean {
if (null == this.ios) {
return false;
}
var res = false;
var data = null;
switch (format) {
case ImageType.JPEG:
case ImageFormat.JPEG:
data = UIKit.UIImageJPEGRepresentation(this.ios, ('undefined' == typeof quality) ? 1.0 : quality);
break;
case ImageType.PNG:
case ImageFormat.PNG:
data = UIKit.UIImagePNGRepresentation(this.ios);
break;
}
@ -70,11 +50,32 @@ export class Image {
return res;
}
public getHeight(): number {
get height(): number {
return (this.ios) ? this.ios.size.height : NaN;
}
public getWidth(): number {
get width(): number {
return (this.ios) ? this.ios.size.width : NaN;
}
}
// TODO: These functions are the same in each platform, think for some common code separation
export function fromResource(name: string): Image {
var image = new Image();
return image.loadFromResource(name) ? image : null;
}
export function fromFile(path: string): Image {
var image = new Image();
return image.loadFromFile(path) ? image : null;
}
export function fromData(data: any): Image {
var image = new Image();
return image.loadFromData(data) ? image : null;
}
export function fromNativeBitmap(source: any): Image {
var image = new Image();
return image.setNativeBitmap(source) ? image : null;
}