ZFUIImageAsync.h File Reference

async image load util More...

#include "ZFUIWidgetDef.h"

Go to the source code of this file.

Macros
#define	ZFUIImageSerializeType_ZFUIImageAsync
	see ZFUIIMAGE_SERIALIZE_TYPE_DEFINE
#define	ZFSerializableKeyword_ZFUIImageAsync_imageSrc
	keyword for serialize
#define	ZFSerializableKeyword_ZFUIImageAsync_imageLoadFail
	keyword for serialize
#define	ZFSerializableKeyword_ZFUIImageAsync_imageLoading
	keyword for serialize

Functions
zfautoT< ZFUIImage >	ZFUIImageAsync (const ZFInput &src, ZFUIImage *imageLoadFail=(zft_zfnull), ZFUIImage *imageLoading=(zft_zfnull))
	async image load util
zfbool	ZFUIImageAsyncT (ZFUIImage *ret, const ZFInput &src, ZFUIImage *imageLoadFail=(zft_zfnull), ZFUIImage *imageLoading=(zft_zfnull))
	see ZFUIImageAsync

Detailed Description

async image load util

Macro Definition Documentation

ZFUIImageSerializeType_ZFUIImageAsync

#define ZFUIImageSerializeType_ZFUIImageAsync

see ZFUIIMAGE_SERIALIZE_TYPE_DEFINE

serializable data:

<ZFUIImage imageType="ZFUIImageAsync">
    <ZFCallback category="imageSrc" ... /> // callback serialization, see #ZFCALLBACK_SERIALIZE_TYPE_DEFINE
    <ZFUIImage category="imageLoadFail" ... /> // load fail image
    <ZFUIImage category="imageLoading" ... /> // loading image
</ZFUIImage>

Function Documentation

ZFUIImageAsync()

zfautoT< ZFUIImage > ZFUIImageAsync ( const ZFInput & src, ZFUIImage * imageLoadFail = (zft_zfnull), ZFUIImage * imageLoading = (zft_zfnull) )

extern

async image load util

how it works:

1. return a dummy holder image
2. loading image in background, by ZFUIImageLoad
3. notify impl to redraw, by ZFUIImage::imageStateImplNotifyUpdate

Note

the imageLoadFail and imageLoading would be retained by the returned image object