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C++ ImageResource::isLoaded方法代码示例

本文整理汇总了C++中ImageResource::isLoaded方法的典型用法代码示例。如果您正苦于以下问题:C++ ImageResource::isLoaded方法的具体用法?C++ ImageResource::isLoaded怎么用?C++ ImageResource::isLoaded使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在ImageResource的用法示例。


在下文中一共展示了ImageResource::isLoaded方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: writeImageToDataObject

static void writeImageToDataObject(DataObject* dataObject, Element* element, const KURL& url)
{
    // Shove image data into a DataObject for use as a file
    ImageResource* cachedImage = getImageResource(element);
    if (!cachedImage || !cachedImage->getImage() || !cachedImage->isLoaded())
        return;

    SharedBuffer* imageBuffer = cachedImage->getImage()->data();
    if (!imageBuffer || !imageBuffer->size())
        return;

    String imageExtension = cachedImage->getImage()->filenameExtension();
    ASSERT(!imageExtension.isEmpty());

    // Determine the filename for the file contents of the image.
    String filename = cachedImage->response().suggestedFilename();
    if (filename.isEmpty())
        filename = url.lastPathComponent();

    String fileExtension;
    if (filename.isEmpty()) {
        filename = element->getAttribute(HTMLNames::altAttr);
    } else {
        // Strip any existing extension. Assume that alt text is usually not a filename.
        int extensionIndex = filename.reverseFind('.');
        if (extensionIndex != -1) {
            fileExtension = filename.substring(extensionIndex + 1);
            filename.truncate(extensionIndex);
        }
    }

    if (!fileExtension.isEmpty() && fileExtension != imageExtension) {
        String imageMimeType = MIMETypeRegistry::getMIMETypeForExtension(imageExtension);
        ASSERT(imageMimeType.startsWith("image/"));
        // Use the file extension only if it has imageMimeType: it's untrustworthy otherwise.
        if (imageMimeType == MIMETypeRegistry::getMIMETypeForExtension(fileExtension))
            imageExtension = fileExtension;
    }

    imageExtension = "." + imageExtension;
    validateFilename(filename, imageExtension);

    dataObject->addSharedBuffer(filename + imageExtension, imageBuffer);
}
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