feat: 搭建 Just DataInspector 波形数据查看器基础功能
基于 Win32 API + GDI+ 从零实现仿真数据检查器，用于替代 Simulink.sdi.view 查看带时间轴的 CSV 数据。 - 新增 Utilities 层：UTF-8/宽字符与数值格式化工具、CSV 解析器（自动识别分隔符与引号）、 信号数据集模型（时间轴识别、信号名解析、取值采样）、Solarised Light 主题色板与绘图基础工具 - 新增 Toolbar 组件：打开 CSV、适应窗口、适应时间、放大、缩小、合并网格、每信号一格 - 新增 SignalPanel 组件：信号列表（可见性开关、颜色标识、所属网格标记）、样式编辑区 （颜色、线宽、线段/散点/点线/阶梯显示方式、所属网格），支持右键上下文菜单与滚轮滚动 - 新增 PlotView 组件：多网格波形绘制、自适应时间轴与幅值轴、网格线、信号图例、 时间光标与实时数值读数、纵向滚动条 - 新增 Application 组件：DPI 感知（Per-Monitor V2）、双缓冲绘制、区域布局与分隔条拖拽、 鼠标与键盘消息分发、文件拖放、状态栏提示 - 交互能力：滚轮缩放、Shift+滚轮平移、Ctrl+滚轮缩放幅值、拖拽平移、幅值轴纵向缩放、 右键框选缩放、单击固定/取消时间光标、双击自适应、方向键平移与滚动 - 补齐 Makefile 的源文件与头文件索引，并新增 gdiplus、comdlg32 链接库
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#include "Utf8Util.hpp"
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#include <windows.h>
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#include <cmath>
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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namespace jdi
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{
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namespace
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{
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/** @brief 判断字符是否为需要裁掉的空白字符。 */
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bool IsSpaceChar(wchar_t c)
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{
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return c == L' ' || c == L'\t' || c == L'\r' || c == L'\n' || c == L'\v' || c == L'\f' ||
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c == static_cast<wchar_t>(0x00A0);
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}
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/** @brief 判断字符是否为 ASCII 大写字母。 */
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bool IsUpperAscii(wchar_t c)
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{
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return c >= L'A' && c <= L'Z';
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}
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}
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std::wstring Utf8ToWide(const char* text, int length)
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{
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if (text == nullptr)
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{
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return std::wstring();
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}
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int byteCount = (length < 0) ? static_cast<int>(std::strlen(text)) : length;
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if (byteCount <= 0)
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{
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return std::wstring();
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}
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int wideCount = MultiByteToWideChar(CP_UTF8, 0, text, byteCount, nullptr, 0);
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if (wideCount <= 0)
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{
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return std::wstring();
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}
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std::wstring result(static_cast<size_t>(wideCount), L'\0');
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MultiByteToWideChar(CP_UTF8, 0, text, byteCount, &result[0], wideCount);
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return result;
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}
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std::string WideToUtf8(const wchar_t* text)
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{
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if (text == nullptr)
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{
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return std::string();
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}
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int wideCount = static_cast<int>(std::wcslen(text));
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if (wideCount <= 0)
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{
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return std::string();
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}
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int byteCount = WideCharToMultiByte(CP_UTF8, 0, text, wideCount, nullptr, 0, nullptr, nullptr);
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if (byteCount <= 0)
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{
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return std::string();
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}
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std::string result(static_cast<size_t>(byteCount), '\0');
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WideCharToMultiByte(CP_UTF8, 0, text, wideCount, &result[0], byteCount, nullptr, nullptr);
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return result;
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}
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std::wstring Trim(const std::wstring& text)
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{
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size_t begin = 0;
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size_t end = text.size();
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while (begin < end && IsSpaceChar(text[begin]))
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{
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++begin;
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}
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while (end > begin && IsSpaceChar(text[end - 1]))
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{
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--end;
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}
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return text.substr(begin, end - begin);
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}
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std::wstring StripQuotes(const std::wstring& text)
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{
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std::wstring trimmed = Trim(text);
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if (trimmed.size() >= 2)
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{
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const wchar_t first = trimmed.front();
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const wchar_t last = trimmed.back();
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if ((first == L'"' && last == L'"') || (first == L'\'' && last == L'\''))
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{
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trimmed = trimmed.substr(1, trimmed.size() - 2);
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}
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}
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return trimmed;
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}
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std::wstring ToLowerAscii(const std::wstring& text)
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{
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std::wstring result = text;
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for (wchar_t& c : result)
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{
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if (IsUpperAscii(c))
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{
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c = static_cast<wchar_t>(c - L'A' + L'a');
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}
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}
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return result;
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}
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bool StartsWith(const std::wstring& text, const std::wstring& prefix)
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{
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if (prefix.size() > text.size())
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{
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return false;
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}
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return text.compare(0, prefix.size(), prefix) == 0;
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}
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bool ContainsInsensitive(const std::wstring& text, const std::wstring& needle)
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{
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if (needle.empty())
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{
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return true;
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}
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if (needle.size() > text.size())
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{
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return false;
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}
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const size_t last = text.size() - needle.size();
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for (size_t i = 0; i <= last; ++i)
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{
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size_t j = 0;
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while (j < needle.size())
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{
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wchar_t a = text[i + j];
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wchar_t b = needle[j];
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if (IsUpperAscii(a))
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{
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a = static_cast<wchar_t>(a - L'A' + L'a');
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}
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if (IsUpperAscii(b))
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{
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b = static_cast<wchar_t>(b - L'A' + L'a');
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}
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if (a != b)
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{
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break;
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}
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++j;
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}
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if (j == needle.size())
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{
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return true;
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}
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}
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return false;
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}
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bool TryParseDouble(const char* begin, const char* end, double& value)
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{
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if (begin == nullptr || end == nullptr || begin >= end)
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{
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return false;
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}
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const char* p = begin;
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while (p < end && (*p == ' ' || *p == '\t'))
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{
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++p;
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}
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const char* q = end;
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while (q > p && (q[-1] == ' ' || q[-1] == '\t' || q[-1] == '\r' || q[-1] == '\n'))
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{
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--q;
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}
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if (p >= q)
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{
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return false;
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}
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char buffer[96];
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const size_t length = static_cast<size_t>(q - p);
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const char* text = nullptr;
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std::string dynamic;
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if (length < sizeof(buffer))
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{
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std::memcpy(buffer, p, length);
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buffer[length] = '\0';
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text = buffer;
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}
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else
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{
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dynamic.assign(p, q);
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text = dynamic.c_str();
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}
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char* stop = nullptr;
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const double parsed = std::strtod(text, &stop);
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if (stop == text)
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{
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return false;
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}
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value = parsed;
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return true;
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}
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std::wstring FormatNumber(double value, int decimals)
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{
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if (decimals < 0)
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{
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decimals = 0;
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}
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if (decimals > 12)
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{
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decimals = 12;
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}
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wchar_t buffer[96];
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swprintf(buffer, sizeof(buffer) / sizeof(buffer[0]), L"%.*f", decimals, value);
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return std::wstring(buffer);
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}
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std::wstring FormatValue(double value)
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{
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if (std::isnan(value))
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{
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return L"NaN";
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}
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if (std::isinf(value))
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{
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return (value > 0.0) ? L"+Inf" : L"-Inf";
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}
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wchar_t buffer[96];
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swprintf(buffer, sizeof(buffer) / sizeof(buffer[0]), L"%.6g", value);
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return std::wstring(buffer);
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}
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std::wstring FormatTick(double value, double step)
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{
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if (value == 0.0)
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{
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return L"0";
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}
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if (!std::isfinite(value))
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{
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return FormatValue(value);
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}
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int decimals = 0;
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if (step > 0.0 && std::isfinite(step))
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{
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const double magnitude = std::ceil(-std::log10(step) - 1.0e-9);
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if (magnitude > 0.0)
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{
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decimals = static_cast<int>(magnitude);
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}
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}
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if (decimals > 9)
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{
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decimals = 9;
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}
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wchar_t buffer[96];
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swprintf(buffer, sizeof(buffer) / sizeof(buffer[0]), L"%.*f", decimals, value);
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std::wstring text(buffer);
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if (text.size() > 15)
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{
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swprintf(buffer, sizeof(buffer) / sizeof(buffer[0]), L"%.4e", value);
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text.assign(buffer);
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}
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return text;
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}
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std::wstring FormatCount(unsigned long long value)
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{
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wchar_t buffer[32];
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swprintf(buffer, sizeof(buffer) / sizeof(buffer[0]), L"%llu", value);
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std::wstring digits(buffer);
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std::wstring result;
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result.reserve(digits.size() + digits.size() / 3);
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const size_t length = digits.size();
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for (size_t i = 0; i < length; ++i)
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{
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if (i > 0 && ((length - i) % 3u) == 0u)
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{
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result.push_back(L',');
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}
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result.push_back(digits[i]);
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}
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return result;
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}
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double NiceStep(double range, int targetTicks)
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{
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if (!(range > 0.0) || !std::isfinite(range) || targetTicks <= 0)
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{
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return 1.0;
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}
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const double raw = range / static_cast<double>(targetTicks);
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const double magnitude = std::pow(10.0, std::floor(std::log10(raw)));
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const double normalized = raw / magnitude;
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double nice = 10.0;
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if (normalized <= 1.0)
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{
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nice = 1.0;
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}
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else if (normalized <= 2.0)
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{
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nice = 2.0;
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}
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else if (normalized <= 5.0)
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{
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nice = 5.0;
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}
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return nice * magnitude;
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}
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void BuildTicks(double minValue, double maxValue, double step, std::vector<double>& ticks)
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{
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ticks.clear();
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if (!std::isfinite(minValue) || !std::isfinite(maxValue) || !(step > 0.0) || !std::isfinite(step))
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{
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return;
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}
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if (maxValue < minValue)
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{
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const double temp = minValue;
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minValue = maxValue;
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maxValue = temp;
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}
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const long long first = static_cast<long long>(std::ceil(minValue / step - 1.0e-9));
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const long long last = static_cast<long long>(std::floor(maxValue / step + 1.0e-9));
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if (last < first)
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{
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return;
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}
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const long long count = last - first + 1;
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if (count > 512)
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{
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return;
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}
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ticks.reserve(static_cast<size_t>(count));
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for (long long index = first; index <= last; ++index)
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{
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ticks.push_back(static_cast<double>(index) * step);
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}
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}
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} // namespace jdi
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