本文整理汇总了C++中Catalog::Valid方法的典型用法代码示例。如果您正苦于以下问题：C++ Catalog::Valid方法的具体用法？C++ Catalog::Valid怎么用？C++ Catalog::Valid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类Catalog的用法示例。
在下文中一共展示了Catalog::Valid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: Import
GraphicComp* ImportCmd::Import (const char* filename) {
GraphicComp* comp = nil;
const char* creator = ReadCreator(filename);
if (creator == nil || strcmp(creator, "idraw") == 0) {
Catalog* catalog = unidraw->GetCatalog();
if (catalog->Valid(filename, (Component*&) comp)) {
comp = (GraphicComp*) comp->Copy();
} else if (catalog->Retrieve(filename, (Component*&) comp)) {
catalog->Forget(comp);
}
} else {
if (strcmp(creator, "X11") == 0) {
comp = XBitmap_Image(filename);
} else if (strcmp(creator, "TIFF") == 0) {
comp = TIFF_Image(filename);
} else if (
strcmp(creator, "pgmtops") == 0 ||
strcmp(creator, "pnmtops") == 0
) {
comp = PGM_Image(filename);
} else if (strcmp(creator, "ppmtops") == 0) {
comp = PPM_Image(filename);
}
}
return comp;
}