Files
Just-DataInspector/Utilities/Src/PaintUtil.cpp
T
DeepSeek V4.1 Flash 261b8ac07d fix: 修正滑块填充残留、数值内联输入与信号/分组重命名,拖拽虚影跟随鼠标
- 滑块最小值时不再有超出圆钮的填充残留,三处滑块统一为共享实现
- 透明度/RGB/色号支持点击或双击直接输入,整段高亮、首次键入替换、回车提交、Ctrl+C 复制
- 双击信号行或分组名进入重命名编辑;分组竖线改为绘制而非字符
- 拖拽信号时曲线虚影跟随鼠标纵向位移
- 数据层新增展示名覆盖,面板改为持有可写数据集合
2026-09-30 09:38:22 +08:00

533 lines
15 KiB
C++

#include "PaintUtil.hpp"
#include <algorithm>
#include <cmath>
namespace jdi
{
namespace
{
/**
* @brief 颜色样块补充描边的不透明度阈值。
*
* 不透明度低于该值时,色块自身与浅色背景的对比度已不足,需要额外描边才能辨识;
* 高于该值时按需求不绘制描边,保持与预设色块一致的纯净外观。
*/
const float kSwatchOutlineOpacity = 0.45f;
/**
* @brief 构造圆角矩形路径。
* @param [IN,OUT] path 目标路径对象。
* @param [IN] rect 目标矩形。
* @param [IN] radius 圆角半径。
*/
void BuildRoundRectPath(gd::GraphicsPath& path, const gd::RectF& rect, float radius)
{
if (rect.Width <= 0.0f || rect.Height <= 0.0f)
{
return;
}
float diameter = radius * 2.0f;
if (diameter > rect.Width)
{
diameter = rect.Width;
}
if (diameter > rect.Height)
{
diameter = rect.Height;
}
if (diameter < 1.0f)
{
path.AddRectangle(rect);
return;
}
const float right = rect.X + rect.Width;
const float bottom = rect.Y + rect.Height;
path.AddArc(rect.X, rect.Y, diameter, diameter, 180.0f, 90.0f);
path.AddArc(right - diameter, rect.Y, diameter, diameter, 270.0f, 90.0f);
path.AddArc(right - diameter, bottom - diameter, diameter, diameter, 0.0f, 90.0f);
path.AddArc(rect.X, bottom - diameter, diameter, diameter, 90.0f, 90.0f);
path.CloseFigure();
}
/**
* @brief 创建指定字号的界面字体。
* @param [IN] face 字体名称。
* @param [IN] pixelHeight 字符高度(像素)。
* @param [IN] bold 是否加粗。
* @return 字体句柄,失败返回 nullptr。
*/
HFONT CreateUiFont(const wchar_t* face, int pixelHeight, bool bold)
{
LOGFONTW logFont = {};
logFont.lfHeight = -pixelHeight;
logFont.lfWeight = bold ? FW_SEMIBOLD : FW_NORMAL;
logFont.lfCharSet = DEFAULT_CHARSET;
logFont.lfOutPrecision = OUT_TT_PRECIS;
logFont.lfClipPrecision = CLIP_DEFAULT_PRECIS;
logFont.lfQuality = CLEARTYPE_QUALITY;
logFont.lfPitchAndFamily = DEFAULT_PITCH | FF_DONTCARE;
wcsncpy(logFont.lfFaceName, face, LF_FACESIZE - 1);
logFont.lfFaceName[LF_FACESIZE - 1] = L'\0';
HFONT font = CreateFontIndirectW(&logFont);
if (font == nullptr)
{
font = static_cast<HFONT>(GetStockObject(DEFAULT_GUI_FONT));
}
return font;
}
}
bool UiFonts::Create(UINT targetDpi)
{
Destroy();
dpi = (targetDpi == 0) ? 96u : targetDpi;
const double scale = static_cast<double>(dpi) / 96.0;
const int uiHeight = static_cast<int>(std::lround(14.0 * scale));
const int smallHeight = static_cast<int>(std::lround(12.0 * scale));
const int titleHeight = static_cast<int>(std::lround(15.0 * scale));
const int monoHeight = static_cast<int>(std::lround(13.0 * scale));
ui = CreateUiFont(L"Segoe UI", uiHeight, false);
uiBold = CreateUiFont(L"Segoe UI Semibold", uiHeight, true);
uiSmall = CreateUiFont(L"Segoe UI", smallHeight, false);
uiSmallBold = CreateUiFont(L"Segoe UI Semibold", smallHeight, true);
title = CreateUiFont(L"Segoe UI Semibold", titleHeight, true);
mono = CreateUiFont(L"Consolas", monoHeight, false);
monoSmall = CreateUiFont(L"Consolas", smallHeight, false);
return ui != nullptr && uiBold != nullptr && uiSmall != nullptr && title != nullptr && mono != nullptr;
}
void UiFonts::Destroy()
{
const HFONT resources[] = {ui, uiBold, uiSmall, uiSmallBold, title, mono, monoSmall};
for (const HFONT font : resources)
{
if (font != nullptr)
{
DeleteObject(font);
}
}
ui = nullptr;
uiBold = nullptr;
uiSmall = nullptr;
uiSmallBold = nullptr;
title = nullptr;
mono = nullptr;
monoSmall = nullptr;
}
void UiFillRect(gd::Graphics& g, const gd::RectF& rect, std::uint32_t argb)
{
if (rect.Width <= 0.0f || rect.Height <= 0.0f)
{
return;
}
gd::SolidBrush brush(ToGdiColor(argb));
g.FillRectangle(&brush, rect);
}
void UiFillRoundRect(gd::Graphics& g, const gd::RectF& rect, float radius, std::uint32_t argb)
{
if (rect.Width <= 0.0f || rect.Height <= 0.0f)
{
return;
}
gd::GraphicsPath path;
BuildRoundRectPath(path, rect, radius);
gd::SolidBrush brush(ToGdiColor(argb));
g.FillPath(&brush, &path);
}
void UiDrawRoundRect(gd::Graphics& g, const gd::RectF& rect, float radius, std::uint32_t argb, float width)
{
if (rect.Width <= 0.0f || rect.Height <= 0.0f)
{
return;
}
gd::GraphicsPath path;
BuildRoundRectPath(path, rect, radius);
gd::Pen pen(ToGdiColor(argb), width);
g.DrawPath(&pen, &path);
}
void UiDrawLine(gd::Graphics& g, float x1, float y1, float x2, float y2, std::uint32_t argb, float width)
{
gd::Pen pen(ToGdiColor(argb), width);
pen.SetStartCap(gd::LineCapFlat);
pen.SetEndCap(gd::LineCapFlat);
g.DrawLine(&pen, x1, y1, x2, y2);
}
void UiText(gd::Graphics& g, const std::wstring& text, HFONT font, const gd::RectF& rect, std::uint32_t argb,
TextAlign align)
{
if (text.empty() || font == nullptr || rect.Width <= 0.0f || rect.Height <= 0.0f)
{
return;
}
HDC hdc = g.GetHDC();
if (hdc == nullptr)
{
return;
}
HGDIOBJ oldFont = SelectObject(hdc, font);
const int oldMode = SetBkMode(hdc, TRANSPARENT);
const COLORREF oldColor = SetTextColor(hdc, ToColorRef(argb));
RECT rc;
rc.left = static_cast<LONG>(std::floor(rect.X));
rc.top = static_cast<LONG>(std::floor(rect.Y));
rc.right = static_cast<LONG>(std::ceil(rect.X + rect.Width));
rc.bottom = static_cast<LONG>(std::ceil(rect.Y + rect.Height));
UINT flags = DT_SINGLELINE | DT_VCENTER | DT_NOPREFIX | DT_END_ELLIPSIS;
switch (align)
{
case TextAlign::CENTER:
flags |= DT_CENTER;
break;
case TextAlign::RIGHT:
flags |= DT_RIGHT;
break;
case TextAlign::LEFT:
default:
flags |= DT_LEFT;
break;
}
DrawTextW(hdc, text.c_str(), static_cast<int>(text.size()), &rc, flags);
SetTextColor(hdc, oldColor);
SetBkMode(hdc, oldMode);
SelectObject(hdc, oldFont);
g.ReleaseHDC(hdc);
}
float UiTextWidth(gd::Graphics& g, const std::wstring& text, HFONT font)
{
if (text.empty() || font == nullptr)
{
return 0.0f;
}
HDC hdc = g.GetHDC();
if (hdc == nullptr)
{
return 0.0f;
}
HGDIOBJ oldFont = SelectObject(hdc, font);
SIZE size = {};
GetTextExtentPoint32W(hdc, text.c_str(), static_cast<int>(text.size()), &size);
SelectObject(hdc, oldFont);
g.ReleaseHDC(hdc);
return static_cast<float>(size.cx);
}
float UiMeasureTextWidth(HFONT font, const std::wstring& text)
{
if (text.empty() || font == nullptr)
{
return 0.0f;
}
HDC hdc = GetDC(nullptr);
if (hdc == nullptr)
{
return 0.0f;
}
HGDIOBJ oldFont = SelectObject(hdc, font);
SIZE size = {};
GetTextExtentPoint32W(hdc, text.c_str(), static_cast<int>(text.size()), &size);
SelectObject(hdc, oldFont);
ReleaseDC(nullptr, hdc);
return static_cast<float>(size.cx);
}
std::wstring UiEllipsize(gd::Graphics& g, const std::wstring& text, HFONT font, float maxWidth)
{
if (text.empty() || font == nullptr || maxWidth <= 0.0f)
{
return std::wstring();
}
if (UiTextWidth(g, text, font) <= maxWidth)
{
return text;
}
const std::wstring ellipsis = L"…";
const float ellipsisWidth = UiTextWidth(g, ellipsis, font);
if (ellipsisWidth > maxWidth)
{
return std::wstring();
}
std::wstring result = text;
while (!result.empty())
{
result.pop_back();
if (UiTextWidth(g, result, font) + ellipsisWidth <= maxWidth)
{
return result + ellipsis;
}
}
return ellipsis;
}
void UiDrawPlusIcon(gd::Graphics& g, const gd::RectF& rect, std::uint32_t argb, float strokeWidth)
{
const float cx = rect.X + rect.Width * 0.5f;
const float cy = rect.Y + rect.Height * 0.5f;
const float arm = std::min(rect.Width, rect.Height) * 0.3f;
UiDrawLine(g, cx - arm, cy, cx + arm, cy, argb, strokeWidth);
UiDrawLine(g, cx, cy - arm, cx, cy + arm, argb, strokeWidth);
}
void UiDrawCrossIcon(gd::Graphics& g, const gd::RectF& rect, std::uint32_t argb, float strokeWidth)
{
const float cx = rect.X + rect.Width * 0.5f;
const float cy = rect.Y + rect.Height * 0.5f;
const float arm = std::min(rect.Width, rect.Height) * 0.3f;
UiDrawLine(g, cx - arm, cy - arm, cx + arm, cy + arm, argb, strokeWidth);
UiDrawLine(g, cx + arm, cy - arm, cx - arm, cy + arm, argb, strokeWidth);
}
void UiDrawArrowIcon(gd::Graphics& g, const gd::RectF& rect, std::uint32_t argb, float strokeWidth,
IconDirection direction)
{
const float cx = rect.X + rect.Width * 0.5f;
const float cy = rect.Y + rect.Height * 0.5f;
const float arm = std::min(rect.Width, rect.Height) * 0.26f;
switch (direction)
{
case IconDirection::LEFT:
UiDrawLine(g, cx + arm * 0.6f, cy - arm, cx - arm * 0.6f, cy, argb, strokeWidth);
UiDrawLine(g, cx - arm * 0.6f, cy, cx + arm * 0.6f, cy + arm, argb, strokeWidth);
break;
case IconDirection::RIGHT:
UiDrawLine(g, cx - arm * 0.6f, cy - arm, cx + arm * 0.6f, cy, argb, strokeWidth);
UiDrawLine(g, cx + arm * 0.6f, cy, cx - arm * 0.6f, cy + arm, argb, strokeWidth);
break;
case IconDirection::UP:
UiDrawLine(g, cx - arm, cy + arm * 0.6f, cx, cy - arm * 0.6f, argb, strokeWidth);
UiDrawLine(g, cx, cy - arm * 0.6f, cx + arm, cy + arm * 0.6f, argb, strokeWidth);
break;
case IconDirection::DOWN:
default:
UiDrawLine(g, cx - arm, cy - arm * 0.6f, cx, cy + arm * 0.6f, argb, strokeWidth);
UiDrawLine(g, cx, cy + arm * 0.6f, cx + arm, cy - arm * 0.6f, argb, strokeWidth);
break;
}
}
void UiDrawTriangleIcon(gd::Graphics& g, const gd::RectF& rect, std::uint32_t argb, IconDirection direction)
{
const float cx = rect.X + rect.Width * 0.5f;
const float cy = rect.Y + rect.Height * 0.5f;
const float arm = std::min(rect.Width, rect.Height) * 0.28f;
gd::PointF points[3];
switch (direction)
{
case IconDirection::LEFT:
points[0] = gd::PointF(cx + arm * 0.7f, cy - arm);
points[1] = gd::PointF(cx - arm * 0.7f, cy);
points[2] = gd::PointF(cx + arm * 0.7f, cy + arm);
break;
case IconDirection::RIGHT:
points[0] = gd::PointF(cx - arm * 0.7f, cy - arm);
points[1] = gd::PointF(cx + arm * 0.7f, cy);
points[2] = gd::PointF(cx - arm * 0.7f, cy + arm);
break;
case IconDirection::UP:
points[0] = gd::PointF(cx - arm, cy + arm * 0.7f);
points[1] = gd::PointF(cx, cy - arm * 0.7f);
points[2] = gd::PointF(cx + arm, cy + arm * 0.7f);
break;
case IconDirection::DOWN:
default:
points[0] = gd::PointF(cx - arm, cy - arm * 0.7f);
points[1] = gd::PointF(cx, cy + arm * 0.7f);
points[2] = gd::PointF(cx + arm, cy - arm * 0.7f);
break;
}
gd::SolidBrush brush(ToGdiColor(argb));
g.FillPolygon(&brush, points, 3);
}
double UiSliderRatioFromX(const gd::RectF& trackRect, float x)
{
if (trackRect.Width <= 0.0f)
{
return 0.0;
}
const double ratio = static_cast<double>(x - trackRect.X) / static_cast<double>(trackRect.Width);
if (ratio < 0.0)
{
return 0.0;
}
if (ratio > 1.0)
{
return 1.0;
}
return ratio;
}
void UiDrawCheckBox(gd::Graphics& g, const gd::RectF& rect, int state, float radius)
{
const Theme& theme = SolarizedLight();
const float centerY = rect.Y + rect.Height * 0.5f;
if (state == 1)
{
UiFillRoundRect(g, rect, radius, theme.accent);
gd::Pen pen(ToGdiColor(theme.textOnAccent), std::max(1.4f, rect.Height * 0.11f));
pen.SetStartCap(gd::LineCapRound);
pen.SetEndCap(gd::LineCapRound);
g.DrawLine(&pen, rect.X + rect.Width * 0.22f, centerY, rect.X + rect.Width * 0.42f,
rect.Y + rect.Height * 0.72f);
g.DrawLine(&pen, rect.X + rect.Width * 0.42f, rect.Y + rect.Height * 0.72f,
rect.X + rect.Width * 0.78f, rect.Y + rect.Height * 0.28f);
}
else if (state == 2)
{
UiFillRoundRect(g, rect, radius, theme.accentSoft);
UiDrawRoundRect(g, rect, radius, theme.accent, 1.0f);
UiFillRect(g, gd::RectF(rect.X + rect.Width * 0.22f, centerY - rect.Height * 0.08f,
rect.Width * 0.56f, rect.Height * 0.16f),
theme.accent);
}
else
{
UiFillRoundRect(g, rect, radius, theme.cardBg);
UiDrawRoundRect(g, rect, radius, theme.borderStrong, 1.0f);
}
}
void UiDrawSlider(gd::Graphics& g, const gd::RectF& track, double ratio, std::uint32_t fillColor,
bool active, float scale)
{
if (track.Width <= 0.0f || track.Height <= 0.0f)
{
return;
}
if (ratio < 0.0)
{
ratio = 0.0;
}
if (ratio > 1.0)
{
ratio = 1.0;
}
const float radius = track.Height * 0.5f;
UiFillRoundRect(g, track, radius, 0x2A657B83u);
// 已填充部分严格止于圆钮中心,最小值时不会留下超出圆钮的填充残留。
const float fillWidth = static_cast<float>(ratio) * track.Width;
if (fillWidth > 0.5f)
{
UiFillRoundRect(g, gd::RectF(track.X, track.Y, fillWidth, track.Height), radius, fillColor);
}
const float knobRadius = radius + (active ? 2.5f * scale : 0.8f * scale);
const float knobX = track.X + static_cast<float>(ratio) * track.Width;
gd::SolidBrush knob(ToGdiColor(0xFFFFFFFFu));
gd::Pen knobPen(ToGdiColor(0xFF586E75u), 1.4f * scale);
g.FillEllipse(&knob, knobX - knobRadius, track.Y + radius - knobRadius, knobRadius * 2.0f,
knobRadius * 2.0f);
g.DrawEllipse(&knobPen, knobX - knobRadius, track.Y + radius - knobRadius, knobRadius * 2.0f,
knobRadius * 2.0f);
}
void UiDrawEditField(gd::Graphics& g, const gd::RectF& rect, const std::wstring& text, bool fresh,
HFONT font, float scale)
{
if (rect.Width <= 0.0f || rect.Height <= 0.0f || font == nullptr)
{
return;
}
const Theme& theme = SolarizedLight();
const float corner = 3.0f * scale;
UiFillRoundRect(g, rect, corner, theme.cardBg);
UiDrawRoundRect(g, rect, corner, theme.accent, 1.6f);
const std::wstring shown = text.empty() ? std::wstring(L" ") : text;
if (fresh)
{
// 整段内容处于“将被覆盖”状态:以强调色底衬表示已全选。
const float textWidth = UiTextWidth(g, shown, font) + 8.0f * scale;
const gd::RectF highlight(rect.X + (rect.Width - textWidth) * 0.5f, rect.Y + 2.0f * scale,
textWidth, rect.Height - 4.0f * scale);
UiFillRoundRect(g, highlight, 2.0f * scale, theme.accent);
UiText(g, shown, font, highlight, theme.textOnAccent, TextAlign::CENTER);
return;
}
UiText(g, shown, font, rect, theme.textStrong, TextAlign::CENTER);
// 已开始键入:在文本末尾显示插入符。
const float textWidth = UiTextWidth(g, shown, font);
const float caretX = rect.X + (rect.Width + textWidth) * 0.5f + 1.0f * scale;
if (caretX < rect.X + rect.Width - 2.0f * scale)
{
UiDrawLine(g, caretX, rect.Y + 4.0f * scale, caretX, rect.Y + rect.Height - 4.0f * scale,
theme.accent, 1.4f * scale);
}
}
bool UiSwatchNeedsOutline(float opacity)
{
return !(opacity >= kSwatchOutlineOpacity);
}
std::uint32_t UiDrawSwatch(gd::Graphics& g, const gd::RectF& rect, std::uint32_t color, float opacity,
float radius, float scale)
{
double alpha = static_cast<double>(opacity);
if (!(alpha > 0.0))
{
alpha = 0.0;
}
if (alpha > 1.0)
{
alpha = 1.0;
}
const std::uint32_t filled = WithAlpha(color, static_cast<unsigned int>(alpha * 255.0 + 0.5));
if (rect.Width > 0.0f && rect.Height > 0.0f)
{
UiFillRoundRect(g, rect, radius, filled);
// 透明度过低时色块本身难以辨识,补充一圈描边以保持可读性;可见时不绘制描边。
if (UiSwatchNeedsOutline(opacity))
{
UiDrawRoundRect(g, rect, radius, SolarizedLight().borderStrong,
std::max(1.0f, scale));
}
}
return filled;
}
} // namespace jdi