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comparison mupdf-source/thirdparty/tesseract/src/viewer/svmnode.h @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 ///////////////////////////////////////////////////////////////////////
2 // File: svmnode.h
3 // description_: ScrollView Menu Node
4 // Author: Joern Wanke
5 //
6 // (C) Copyright 2007, Google Inc.
7 // Licensed under the Apache License, Version 2.0 (the "License");
8 // you may not use this file except in compliance with the License.
9 // You may obtain a copy of the License at
10 // http://www.apache.org/licenses/LICENSE-2.0
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
16 //
17 ///////////////////////////////////////////////////////////////////////
18 //
19 // A SVMenuNode is an entity which contains the mapping from a menu entry on
20 // the server side to the corresponding associated commands on the client.
21 // It is designed to be a tree structure with a root node, which can then be
22 // used to generate the appropriate messages to the server to display the
23 // menu structure there.
24 // A SVMenuNode can both be used in the context_ of popup menus as well as
25 // menu bars.
26
27 #ifndef TESSERACT_VIEWER_SVMNODE_H_
28 #define TESSERACT_VIEWER_SVMNODE_H_
29
30 #ifndef GRAPHICS_DISABLED
31
32 #include <tesseract/export.h>
33
34 #include <string>
35
36 namespace tesseract {
37
38 class ScrollView;
39
40 class TESS_API SVMenuNode {
41 public:
42 // Creating the (empty) root menu node.
43 SVMenuNode();
44
45 // Destructor for every node.
46 ~SVMenuNode();
47
48 // Create a new sub menu node with just a caption. This is used to create
49 // nodes which act as parent nodes to other nodes (e.g. submenus).
50 SVMenuNode *AddChild(const char *txt);
51
52 // Create a "normal" menu node which is associated with a command event.
53 void AddChild(const char *txt, int command_event);
54
55 // Create a flag menu node.
56 void AddChild(const char *txt, int command_event, int tv);
57
58 // Create a menu node with an associated value (which might be changed
59 // through the gui).
60 void AddChild(const char *txt, int command_event, const char *val);
61
62 // Create a menu node with an associated value and description_.
63 void AddChild(const char *txt, int command_event, const char *val, const char *desc);
64
65 // Build a menu structure for the server and send the necessary messages.
66 // Should be called on the root node. If menu_bar is true, a menu_bar menu
67 // is built (e.g. on top of the window), if it is false a popup menu is
68 // built which gets shown by right clicking on the window.
69 void BuildMenu(ScrollView *sv, bool menu_bar = true);
70
71 private:
72 // Constructor holding the actual node data.
73 SVMenuNode(int command_event, const char *txt, int tv, bool check_box_entry, const char *val = "",
74 const char *desc = "");
75
76 // Adds a new menu node to the current node.
77 void AddChild(SVMenuNode *svmn);
78
79 // The parent node of this node.
80 SVMenuNode *parent_;
81 // The first child of this node.
82 SVMenuNode *child_;
83 // The next "sibling" of this node (e.g. same parent).
84 SVMenuNode *next_;
85 // Whether this menu node actually is a flag.
86 bool is_check_box_entry_;
87 // The value of the flag (if this menu node is a flag).
88 bool toggle_value_;
89
90 // The command event associated with a specific menu node. Should be unique.
91 int cmd_event_;
92 // The caption associated with a specific menu node.
93 std::string text_;
94 // The value of the menu node. (optional)
95 std::string value_;
96 // A description_ of the value. (optional)
97 std::string description_;
98 };
99
100 } // namespace tesseract
101
102 #endif // !GRAPHICS_DISABLED
103
104 #endif // TESSERACT_VIEWER_SVMNODE_H_