/src/wt/src/Wt/WItemSelectionModel.C
Line | Count | Source |
1 | | /* |
2 | | * Copyright (C) 2008 Emweb bv, Herent, Belgium. |
3 | | * |
4 | | * See the LICENSE file for terms of use. |
5 | | */ |
6 | | |
7 | | #include "Wt/WItemSelectionModel.h" |
8 | | #include "Wt/WAbstractItemModel.h" |
9 | | |
10 | | #include <string> |
11 | | |
12 | | namespace Wt { |
13 | | |
14 | | WItemSelectionModel::WItemSelectionModel() |
15 | 0 | : selectionBehavior_(SelectionBehavior::Rows) |
16 | 0 | { } |
17 | | |
18 | | WItemSelectionModel |
19 | | ::WItemSelectionModel(const std::shared_ptr<WAbstractItemModel>& model) |
20 | 0 | : model_(model), |
21 | 0 | selectionBehavior_(SelectionBehavior::Rows) |
22 | 0 | { } |
23 | | |
24 | | void WItemSelectionModel::setSelectionBehavior(SelectionBehavior behavior) |
25 | 0 | { |
26 | 0 | selectionBehavior_ = behavior; |
27 | 0 | } |
28 | | |
29 | | bool WItemSelectionModel::isSelected(const WModelIndex& index) const |
30 | 0 | { |
31 | 0 | if (selectionBehavior_ == SelectionBehavior::Rows) { |
32 | 0 | for (std::set<WModelIndex>::const_iterator it = selection_.begin() ; |
33 | 0 | it != selection_.end(); ++it ) { |
34 | 0 | WModelIndex mi = *it; |
35 | 0 | if (mi.row() == index.row() && mi.parent() == index.parent()) |
36 | 0 | return true; |
37 | 0 | } |
38 | 0 | return false; |
39 | 0 | } else { |
40 | 0 | return selection_.find(index) != selection_.end(); |
41 | 0 | } |
42 | 0 | } |
43 | | |
44 | | std::string WItemSelectionModel::mimeType() |
45 | 0 | { |
46 | 0 | std::string retval; |
47 | | |
48 | | // Check that all selected mime types are the same |
49 | |
|
50 | 0 | for (WModelIndexSet::const_iterator i = selection_.begin(); |
51 | 0 | i != selection_.end(); ++i) { |
52 | 0 | WModelIndex mi = *i; |
53 | |
|
54 | 0 | if (!(mi.flags() & ItemFlag::DragEnabled)) |
55 | 0 | return std::string(); |
56 | | |
57 | 0 | cpp17::any mimeTypeData = mi.data(ItemDataRole::MimeType); |
58 | 0 | if (cpp17::any_has_value(mimeTypeData)) { |
59 | 0 | std::string currentMimeType = asString(mimeTypeData).toUTF8(); |
60 | |
|
61 | 0 | if (!currentMimeType.empty()) { |
62 | 0 | if (retval.empty()) |
63 | 0 | retval = currentMimeType; |
64 | 0 | else if (currentMimeType != retval) |
65 | 0 | return model_->mimeType(); |
66 | 0 | } |
67 | 0 | } |
68 | 0 | } |
69 | | |
70 | 0 | if (retval.empty()) |
71 | 0 | return selection_.empty() ? std::string() : model_->mimeType(); |
72 | 0 | else |
73 | 0 | return retval; |
74 | 0 | } |
75 | | |
76 | | void WItemSelectionModel::modelLayoutAboutToBeChanged() |
77 | 0 | { |
78 | 0 | WModelIndex::encodeAsRawIndexes(selection_); |
79 | 0 | } |
80 | | |
81 | | void WItemSelectionModel::modelLayoutChanged() |
82 | 0 | { |
83 | 0 | selection_ = WModelIndex::decodeFromRawIndexes(selection_); |
84 | 0 | } |
85 | | |
86 | | } |