52 lines
1.5 KiB
Plaintext
52 lines
1.5 KiB
Plaintext
#ifndef DIRECTORY_NODE_HPP__
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#define DIRECTORY_NODE_HPP__
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#include <QTreeWidgetItem>
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#include <QString>
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//
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// Tree widget item representing a file system directory.
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//
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// It renders the directory name in the first column and progress
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// information in the 2nd column. The progress information consists of
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// two 64 bit integer values, the 1st in the DisplayRole is the number
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// of bytes received and the 2nd in the UserRole the total bytes
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// expected. The progress information is not automatically
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// maintained, see the Directory class for an example of how to
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// dynamically maintain the DirectoryNode progress values. The 1st
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// column also renders a tristate check box that controls the first
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// column check boxes of child items.
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//
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class DirectoryNode final
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: public QTreeWidgetItem
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{
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public:
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explicit DirectoryNode (QTreeWidgetItem * parent, QString const& name)
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: QTreeWidgetItem {parent, Type}
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{
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setFlags (flags () | Qt::ItemIsUserCheckable | Qt::ItemIsTristate);
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setText (0, name);
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setCheckState (0, Qt::Unchecked);
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// initialize as empty, the owning QTreeWidget must maintain these
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// progress values
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setData (1, Qt::DisplayRole, 0ll); // progress in bytes
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setData (1, Qt::UserRole, 0ll); // expected bytes
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}
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bool operator == (QString const& name) const
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{
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return name == text (0);
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}
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static int constexpr Type {UserType};
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};
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inline
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bool operator == (QString const& lhs, DirectoryNode const& rhs)
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{
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return rhs == lhs;
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}
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#endif
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