suwako / Hexagon

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Hexagon / src / hexeditor.hh
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1/**************************************************************************************
2# 076 License
3
4Copyright (c) 2026 テクニカル諏訪子
5
6Permission is hereby granted to any person obtaining a copy of the software
7Hexagon (the "Software") to use, modify, merge, copy, publish, distribute,
8sublicense, and/or sell copies of the Software, subject to the following conditions:
9
10 1. **Origin Attribution**:
11 - You must not misrepresent the origin of the Software; you must not claim
12 you created the original Software.
13 - If the Software is used in a product, you must either:
14 a. Provide clear attribution in the product's documentation, user interface,
15 or other visible areas, **OR**
16 b. Pay the original developers a fee they specify in writing.
17 2. **Usage Restriction**:
18 - The Software, or any derivative works, dependencies, or libraries
19 incorporating it, must not be used for censorship or to suppress freedom of
20 speech, expression, or creativity. Prohibited uses include, but are not
21 limited to:
22 - Censorship of so-called "hate speech", visuals, non-mainstream opinions,
23 ideas, or objective reality.
24 - Tools or systems designed to restrict access to information or
25 artistic works.
26 3. **Notice Preservation**:
27 - This license and the above copyright notice must remain intact in all copies
28 of the source code.
29
30THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
31INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
32PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
33HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
34CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
35OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
36**************************************************************************************/
37#pragma once
38
39#ifdef _WIN32
40#include <pdcurses.h>
41#else
42#include <ncurses.h>
43#endif
44
45#include <string>
46#include <vector>
47
48class HexEditor {
49 private:
50 enum StatusMode : uint8_t {
51 Status_Normal,
52 Status_Command,
53 Status_Search,
54 Status_Replace,
55 Status_Error,
56 };
57
58 enum SearchDirection : uint8_t {
59 Direction_Forward,
60 Direction_Reverse,
61 };
62
63 struct Edit {
64 size_t offset;
65 uint8_t oldByte;
66 uint8_t newByte;
67 };
68
69 struct FileSignature {
70 std::vector<uint8_t> signature;
71 std::string type;
72 };
73
74 size_t curPos;
75 size_t dpOffset;
76 size_t bpr;
77 StatusMode statusMode;
78 bool modified;
79 bool running;
80 std::string lastSearch;
81 bool isMouse = false;
82 bool hasFile = false;
83
84 WINDOW *hexPanel;
85 WINDOW *asciiPanel;
86 std::vector<uint8_t> buf;
87 std::string fname;
88 int rows, cols;
89 std::string statusText;
90 std::vector<uint8_t> lastHexSearch;
91 SearchDirection lastSearchDir;
92 std::vector<size_t> matchOff;
93 std::vector<Edit> undoStack;
94 std::vector<Edit> redoStack;
95
96 size_t headerLen;
97 std::string headerType;
98 static const std::vector<FileSignature> signatures;
99
100 void render();
101 void input();
102 void highlightcol(size_t i, size_t row, uint8_t byte);
103 void topbar();
104 void statusbar();
105 void handleCommand();
106 void handleOpen(const std::string &path);
107 void handleSave();
108 void handleQuit(bool force);
109 void handleSearch();
110 void handleReverseSearch();
111 void findNextMatch();
112 void findPrevMatch();
113 void handleReplace();
114 void handleMouse();
115 void undo();
116 void redo();
117
118 public:
119 HexEditor(const std::string &filename);
120 ~HexEditor();
121
122 void run();
123};