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 "PaintUtil.hpp"
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#include <cmath>
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namespace jdi
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{
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namespace
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{
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/**
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* @brief 构造圆角矩形路径。
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* @param [IN,OUT] path 目标路径对象。
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* @param [IN] rect 目标矩形。
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* @param [IN] radius 圆角半径。
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*/
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void BuildRoundRectPath(gd::GraphicsPath& path, const gd::RectF& rect, float radius)
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{
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if (rect.Width <= 0.0f || rect.Height <= 0.0f)
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{
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return;
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}
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float diameter = radius * 2.0f;
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if (diameter > rect.Width)
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{
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diameter = rect.Width;
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}
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if (diameter > rect.Height)
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{
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diameter = rect.Height;
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}
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if (diameter < 1.0f)
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{
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path.AddRectangle(rect);
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return;
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}
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const float right = rect.X + rect.Width;
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const float bottom = rect.Y + rect.Height;
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path.AddArc(rect.X, rect.Y, diameter, diameter, 180.0f, 90.0f);
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path.AddArc(right - diameter, rect.Y, diameter, diameter, 270.0f, 90.0f);
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path.AddArc(right - diameter, bottom - diameter, diameter, diameter, 0.0f, 90.0f);
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path.AddArc(rect.X, bottom - diameter, diameter, diameter, 90.0f, 90.0f);
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path.CloseFigure();
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}
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/**
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* @brief 创建指定字号的界面字体。
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* @param [IN] face 字体名称。
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* @param [IN] pixelHeight 字符高度（像素）。
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* @param [IN] bold 是否加粗。
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* @return 字体句柄，失败返回 nullptr。
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*/
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HFONT CreateUiFont(const wchar_t* face, int pixelHeight, bool bold)
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{
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LOGFONTW logFont = {};
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logFont.lfHeight = -pixelHeight;
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logFont.lfWeight = bold ? FW_SEMIBOLD : FW_NORMAL;
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logFont.lfCharSet = DEFAULT_CHARSET;
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logFont.lfOutPrecision = OUT_TT_PRECIS;
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logFont.lfClipPrecision = CLIP_DEFAULT_PRECIS;
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logFont.lfQuality = CLEARTYPE_QUALITY;
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logFont.lfPitchAndFamily = DEFAULT_PITCH | FF_DONTCARE;
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wcsncpy(logFont.lfFaceName, face, LF_FACESIZE - 1);
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logFont.lfFaceName[LF_FACESIZE - 1] = L'\0';
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HFONT font = CreateFontIndirectW(&logFont);
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if (font == nullptr)
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{
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font = static_cast<HFONT>(GetStockObject(DEFAULT_GUI_FONT));
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}
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return font;
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}
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}
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bool UiFonts::Create(UINT targetDpi)
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{
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Destroy();
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dpi = (targetDpi == 0) ? 96u : targetDpi;
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const double scale = static_cast<double>(dpi) / 96.0;
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const int uiHeight = static_cast<int>(std::lround(14.0 * scale));
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const int smallHeight = static_cast<int>(std::lround(12.0 * scale));
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const int titleHeight = static_cast<int>(std::lround(15.0 * scale));
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const int monoHeight = static_cast<int>(std::lround(13.0 * scale));
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ui = CreateUiFont(L"Segoe UI", uiHeight, false);
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uiBold = CreateUiFont(L"Segoe UI Semibold", uiHeight, true);
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uiSmall = CreateUiFont(L"Segoe UI", smallHeight, false);
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uiSmallBold = CreateUiFont(L"Segoe UI Semibold", smallHeight, true);
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title = CreateUiFont(L"Segoe UI Semibold", titleHeight, true);
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mono = CreateUiFont(L"Consolas", monoHeight, false);
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monoSmall = CreateUiFont(L"Consolas", smallHeight, false);
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return ui != nullptr && uiBold != nullptr && uiSmall != nullptr && title != nullptr && mono != nullptr;
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}
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void UiFonts::Destroy()
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{
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const HFONT resources[] = {ui, uiBold, uiSmall, uiSmallBold, title, mono, monoSmall};
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for (const HFONT font : resources)
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{
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if (font != nullptr)
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{
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DeleteObject(font);
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}
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}
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ui = nullptr;
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uiBold = nullptr;
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uiSmall = nullptr;
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uiSmallBold = nullptr;
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title = nullptr;
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mono = nullptr;
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monoSmall = nullptr;
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}
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void UiFillRect(gd::Graphics& g, const gd::RectF& rect, std::uint32_t argb)
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{
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if (rect.Width <= 0.0f || rect.Height <= 0.0f)
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{
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return;
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}
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gd::SolidBrush brush(ToGdiColor(argb));
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g.FillRectangle(&brush, rect);
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}
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void UiFillRoundRect(gd::Graphics& g, const gd::RectF& rect, float radius, std::uint32_t argb)
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{
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if (rect.Width <= 0.0f || rect.Height <= 0.0f)
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{
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return;
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}
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gd::GraphicsPath path;
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BuildRoundRectPath(path, rect, radius);
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gd::SolidBrush brush(ToGdiColor(argb));
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g.FillPath(&brush, &path);
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}
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void UiDrawRoundRect(gd::Graphics& g, const gd::RectF& rect, float radius, std::uint32_t argb, float width)
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{
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if (rect.Width <= 0.0f || rect.Height <= 0.0f)
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{
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return;
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}
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gd::GraphicsPath path;
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BuildRoundRectPath(path, rect, radius);
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gd::Pen pen(ToGdiColor(argb), width);
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g.DrawPath(&pen, &path);
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}
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void UiDrawLine(gd::Graphics& g, float x1, float y1, float x2, float y2, std::uint32_t argb, float width)
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{
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gd::Pen pen(ToGdiColor(argb), width);
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pen.SetStartCap(gd::LineCapFlat);
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pen.SetEndCap(gd::LineCapFlat);
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g.DrawLine(&pen, x1, y1, x2, y2);
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}
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void UiDrawDashedLine(gd::Graphics& g, float x1, float y1, float x2, float y2, std::uint32_t argb,
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float width, gd::DashStyle dashPattern)
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{
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gd::Pen pen(ToGdiColor(argb), width);
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pen.SetDashStyle(dashPattern);
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pen.SetStartCap(gd::LineCapFlat);
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pen.SetEndCap(gd::LineCapFlat);
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g.DrawLine(&pen, x1, y1, x2, y2);
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}
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void UiText(gd::Graphics& g, const std::wstring& text, HFONT font, const gd::RectF& rect, std::uint32_t argb,
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TextAlign align)
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{
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if (text.empty() || font == nullptr || rect.Width <= 0.0f || rect.Height <= 0.0f)
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{
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return;
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}
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HDC hdc = g.GetHDC();
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if (hdc == nullptr)
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{
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return;
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}
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HGDIOBJ oldFont = SelectObject(hdc, font);
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const int oldMode = SetBkMode(hdc, TRANSPARENT);
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const COLORREF oldColor = SetTextColor(hdc, ToColorRef(argb));
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RECT rc;
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rc.left = static_cast<LONG>(std::floor(rect.X));
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rc.top = static_cast<LONG>(std::floor(rect.Y));
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rc.right = static_cast<LONG>(std::ceil(rect.X + rect.Width));
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rc.bottom = static_cast<LONG>(std::ceil(rect.Y + rect.Height));
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UINT flags = DT_SINGLELINE | DT_VCENTER | DT_NOPREFIX | DT_END_ELLIPSIS;
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switch (align)
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{
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case TextAlign::CENTER:
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flags |= DT_CENTER;
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break;
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case TextAlign::RIGHT:
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flags |= DT_RIGHT;
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break;
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case TextAlign::LEFT:
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default:
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flags |= DT_LEFT;
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break;
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}
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DrawTextW(hdc, text.c_str(), static_cast<int>(text.size()), &rc, flags);
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SetTextColor(hdc, oldColor);
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SetBkMode(hdc, oldMode);
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SelectObject(hdc, oldFont);
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g.ReleaseHDC(hdc);
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}
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float UiTextWidth(gd::Graphics& g, const std::wstring& text, HFONT font)
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{
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if (text.empty() || font == nullptr)
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{
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return 0.0f;
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}
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HDC hdc = g.GetHDC();
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if (hdc == nullptr)
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{
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return 0.0f;
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}
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HGDIOBJ oldFont = SelectObject(hdc, font);
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SIZE size = {};
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GetTextExtentPoint32W(hdc, text.c_str(), static_cast<int>(text.size()), &size);
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SelectObject(hdc, oldFont);
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g.ReleaseHDC(hdc);
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return static_cast<float>(size.cx);
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}
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std::wstring UiEllipsize(gd::Graphics& g, const std::wstring& text, HFONT font, float maxWidth)
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{
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if (text.empty() || font == nullptr || maxWidth <= 0.0f)
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{
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return std::wstring();
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}
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if (UiTextWidth(g, text, font) <= maxWidth)
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{
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return text;
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}
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const std::wstring ellipsis = L"…";
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const float ellipsisWidth = UiTextWidth(g, ellipsis, font);
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if (ellipsisWidth > maxWidth)
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{
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return std::wstring();
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}
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std::wstring result = text;
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while (!result.empty())
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{
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result.pop_back();
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if (UiTextWidth(g, result, font) + ellipsisWidth <= maxWidth)
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{
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return result + ellipsis;
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}
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}
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return ellipsis;
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}
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} // namespace jdi
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