├── .gitattributes ├── DrawBorderPixmapWidget.cpp ├── DrawBorderPixmapWidget.h ├── MakePixmapWidget.cpp ├── MakePixmapWidget.h ├── NoShadowWidget.cpp ├── NoShadowWidget.h ├── README.md ├── ShadowEffectWidget.cpp ├── ShadowEffectWidget.h ├── ShadowWidget.pro ├── ShadowWidget.pro.user ├── ShadowWidget.pro.user.4.8-pre1 ├── WinAPIShadowWidget.cpp ├── WinAPIShadowWidget.h ├── WindWMAPI.cpp ├── WindWMAPI.h ├── client-shadow.png ├── img.qrc ├── main.cpp └── samples ├── sample1.png ├── sample2.png ├── sample3.png └── sample4.png /.gitattributes: -------------------------------------------------------------------------------- 1 | *.cpp linguist-language=Qt -------------------------------------------------------------------------------- /DrawBorderPixmapWidget.cpp: -------------------------------------------------------------------------------- 1 | /** 2 | * 去掉标题之后添加边框阴影 3 | * 4 | * DrawBorderPixmapWidget.cpp 5 | * 使用Qt的qDrawBorderPixmap函数来实现阴影边框的实现cpp文件。 6 | * 7 | * FlyWM_ 8 | * GitHub: https://github.com/FlyWM 9 | * CSDN: https://blog.csdn.net/a844651990 10 | * 11 | */ 12 | 13 | #include 14 | #include 15 | #include 16 | #include 17 | #include 18 | #include "DrawBorderPixmapWidget.h" 19 | 20 | DrawBorderPixmapWidget::DrawBorderPixmapWidget(QWidget *parent) 21 | : QWidget(parent) 22 | { 23 | resize(400, 300); 24 | setWindowFlags(Qt::FramelessWindowHint); 25 | setAttribute(Qt::WA_TranslucentBackground); 26 | } 27 | 28 | void DrawBorderPixmapWidget::paintEvent(QPaintEvent *e) 29 | { 30 | Q_UNUSED(e) 31 | 32 | QPainter painter(this); 33 | QPixmap pixmap(":/client-shadow.png"); 34 | qDrawBorderPixmap(&painter, this->rect(), QMargins(8, 8, 8, 8), pixmap); 35 | // 绘制中心区域的背景色（不然会是透明的） 36 | QRect rect(this->rect().x()+8, this->rect().y()+8, this->rect().width()-16, this->rect().height()-16); 37 | painter.fillRect(rect, QColor(255, 255, 255)); 38 | } 39 | 40 | -------------------------------------------------------------------------------- /DrawBorderPixmapWidget.h: -------------------------------------------------------------------------------- 1 | /** 2 | * 去掉标题之后添加边框阴影 3 | * 4 | * DrawBorderPixmapWidget.h 5 | * 使用Qt的qDrawBorderPixmap函数来实现阴影边框的头文件。 6 | * 7 | * FlyWM_ 8 | * GitHub: https://github.com/FlyWM 9 | * CSDN: https://blog.csdn.net/a844651990 10 | * 11 | */ 12 | 13 | #ifndef DRAWBORDERPIXMAPWIDGET_H 14 | #define DRAWBORDERPIXMAPWIDGET_H 15 | 16 | #include 17 | 18 | class DrawBorderPixmapWidget : public QWidget 19 | { 20 | Q_OBJECT 21 | public: 22 | explicit DrawBorderPixmapWidget(QWidget *parent = nullptr); 23 | 24 | virtual void paintEvent(QPaintEvent *e); 25 | 26 | signals: 27 | 28 | public slots: 29 | }; 30 | 31 | #endif // DRAWBORDERPIXMAPWIDGET_H 32 | -------------------------------------------------------------------------------- /MakePixmapWidget.cpp: -------------------------------------------------------------------------------- 1 | /** 2 | * 去掉标题之后添加边框阴影 3 | * 4 | * MakePixmapWidget.cpp 5 | * 构造出边框阴影QImage方法的cpp文件。 6 | * 7 | * FlyWM_ 8 | * GitHub: https://github.com/FlyWM 9 | * CSDN: https://blog.csdn.net/a844651990 10 | * 11 | */ 12 | 13 | #include 14 | #include 15 | #include "MakePixmapWidget.h" 16 | 17 | inline unsigned char MakeAlpha(int i, double f, int nSize) 18 | { 19 | if (i == nSize) 20 | f *= 1.2; 21 | // 22 | 23 | double f2 = 1 - cos((double)i / nSize * 3.14 / 2); 24 | // 25 | return int(fabs((i * f) * f2)); 26 | } 27 | QImage MakeShadowImage(int shadowSize, bool activated) 28 | { 29 | int size = shadowSize * 2 + 10; 30 | QImage image(size, size, QImage::Format_ARGB32); 31 | image.fill(QColor(Qt::black)); 32 | // 33 | double f = activated ? 4.0 : 1.0; 34 | // 35 | QSize szImage = image.size(); 36 | // 37 | //left 38 | for (int y = shadowSize; y < szImage.height() - shadowSize; y++) { 39 | for (int x = 0; x < shadowSize; x++) { 40 | int i = x + 1; 41 | int alpha = MakeAlpha(i, f, shadowSize); 42 | image.setPixelColor(x, y, QColor(0, 0, 0, alpha)); 43 | } 44 | } 45 | //right 46 | for (int y = shadowSize; y < szImage.height() - shadowSize; y++) { 47 | for (int x = szImage.width() - shadowSize - 1; x < szImage.width(); x++) { 48 | int i = szImage.width() - x; 49 | int alpha = MakeAlpha(i, f, shadowSize); 50 | image.setPixelColor(x, y, QColor(0, 0, 0, alpha)); 51 | } 52 | } 53 | //top 54 | for (int y = 0; y < shadowSize; y++) { 55 | int i = y + 1; 56 | for (int x = shadowSize; x < szImage.width() - shadowSize; x++) { 57 | int alpha = MakeAlpha(i, f, shadowSize); 58 | image.setPixelColor(x, y, QColor(0, 0, 0, alpha)); 59 | } 60 | // 61 | } 62 | //bottom 63 | for (int y = szImage.height() - shadowSize - 1; y < szImage.height(); y++) { 64 | int i = szImage.height() - y; 65 | for (int x = shadowSize; x < szImage.width() - shadowSize; x++) { 66 | int alpha = MakeAlpha(i, f, shadowSize); 67 | image.setPixelColor(x, y, QColor(0, 0, 0, alpha)); 68 | } 69 | } 70 | // 71 | int parentRoundSize = 3; 72 | // 73 | for (int x = 0; x < shadowSize + parentRoundSize; x++) { 74 | for (int y = 0; y < shadowSize + parentRoundSize; y++) { 75 | int xx = (shadowSize + parentRoundSize) - x; 76 | int yy = (shadowSize + parentRoundSize) - y; 77 | int i = int(sqrt(double(xx * xx + yy * yy))); 78 | i = std::min(shadowSize + parentRoundSize, i); 79 | i -= parentRoundSize; 80 | i = shadowSize - i; 81 | // 82 | int alpha = MakeAlpha(i, f, shadowSize); 83 | image.setPixelColor(x, y, QColor(0, 0, 0, alpha)); 84 | } 85 | } 86 | // 87 | for (int x = szImage.width() - shadowSize - parentRoundSize; x < szImage.width(); x++) { 88 | for (int y = 0; y < shadowSize + parentRoundSize; y++) { 89 | int xx = (shadowSize + parentRoundSize) - (szImage.width() - x); 90 | int yy = (shadowSize + parentRoundSize) - y; 91 | int i = int(sqrt(double(xx * xx + yy * yy))); 92 | i = std::min(shadowSize + parentRoundSize, i); 93 | i -= parentRoundSize; 94 | i = shadowSize - i; 95 | // 96 | int alpha = MakeAlpha(i, f, shadowSize); 97 | image.setPixelColor(x, y, QColor(0, 0, 0, alpha)); 98 | } 99 | } 100 | // 101 | for (int x = 0; x < shadowSize + parentRoundSize; x++) { 102 | for (int y = szImage.height() - shadowSize - parentRoundSize; y < szImage.height(); y++) { 103 | int xx = (shadowSize + parentRoundSize) - x; 104 | int yy = (shadowSize + parentRoundSize) - (szImage.height() - y); 105 | int i = int(sqrt(double(xx * xx + yy * yy))); 106 | i = std::min(shadowSize + parentRoundSize, i); 107 | i -= parentRoundSize; 108 | i = shadowSize - i; 109 | // 110 | int alpha = MakeAlpha(i, f, shadowSize); 111 | image.setPixelColor(x, y, QColor(0, 0, 0, alpha)); 112 | } 113 | } 114 | // 115 | for (int x = szImage.width() - shadowSize - parentRoundSize; x < szImage.width(); x++) { 116 | for (int y = szImage.height() - shadowSize - parentRoundSize; y < szImage.height(); y++) { 117 | int xx = (shadowSize + parentRoundSize) - (szImage.width() - x); 118 | int yy = (shadowSize + parentRoundSize) - (szImage.height() - y); 119 | int i = int(sqrt(double(xx * xx + yy * yy))); 120 | i = std::min(shadowSize + parentRoundSize, i); 121 | i -= parentRoundSize; 122 | i = shadowSize - i; 123 | // 124 | int alpha = MakeAlpha(i, f, shadowSize); 125 | image.setPixelColor(x, y, QColor(0, 0, 0, alpha)); 126 | } 127 | } 128 | // 129 | int borderR = 165; 130 | int borderG = 165; 131 | int borderB = 165; 132 | // 133 | if (activated) { 134 | borderR = 68; 135 | borderG = 138; 136 | borderB = 255; 137 | // borderR = 0; 138 | // borderG = 0; 139 | // borderB = 0; 140 | } 141 | // 142 | int borderSize = 1; 143 | //left 144 | for (int i = 0; i < borderSize; i++) { 145 | for (int y = shadowSize - 1; y < szImage.height() - shadowSize + 1; y++) { 146 | int x = shadowSize - i - 1; 147 | image.setPixelColor(x, y, QColor(borderR, borderG, borderB, 255)); 148 | } 149 | } 150 | //right 151 | for (int i = 0; i < borderSize; i++) { 152 | for (int y = shadowSize - 1; y < szImage.height() - shadowSize + 1; y++) { 153 | int x = szImage.width() - shadowSize - 1 + i + 1; 154 | image.setPixelColor(x, y, QColor(borderR, borderG, borderB, 255)); 155 | } 156 | } 157 | //top 158 | for (int i = 0; i < borderSize; i++) { 159 | for (int x = shadowSize; x < szImage.width() - shadowSize; x++) { 160 | int y = shadowSize - i - 1; 161 | image.setPixelColor(x, y, QColor(borderR, borderG, borderB, 255)); 162 | } 163 | } 164 | //bottom 165 | for (int i = 0; i < borderSize; i++) { 166 | for (int x = shadowSize; x < szImage.width() - shadowSize; x++) { 167 | int y = szImage.height() - shadowSize - 1 + i + 1; 168 | image.setPixelColor(x, y, QColor(borderR, borderG, borderB, 255)); 169 | } 170 | } 171 | // 172 | return image; 173 | } 174 | 175 | bool Skin9GridImage::clear() 176 | { 177 | if (!m_img.isNull()) { 178 | m_img = QImage(); 179 | } 180 | return true; 181 | } 182 | 183 | bool Skin9GridImage::splitRect(const QRect &rcSrc, QPoint ptTopLeft, QRect *parrayRect, int nArrayCount) 184 | { 185 | Q_ASSERT(nArrayCount == 9); 186 | // 187 | QRect* arrayRect = parrayRect; 188 | // 189 | int nWidth = rcSrc.width(); 190 | int nHeight = rcSrc.height(); 191 | // 192 | if (ptTopLeft.x() <= 0) 193 | return false; 194 | if (ptTopLeft.y() <= 0) 195 | return false; 196 | if (ptTopLeft.x() >= nWidth / 2) 197 | return false; 198 | if (ptTopLeft.y() >= nHeight / 2) 199 | return false; 200 | // 201 | int x1 = rcSrc.left() + 0; 202 | int x2 = rcSrc.left() + ptTopLeft.x(); 203 | int x3 = rcSrc.left() + nWidth - ptTopLeft.x(); 204 | int x4 = rcSrc.left() + nWidth; 205 | // 206 | int y1 = rcSrc.top() + 0; 207 | int y2 = rcSrc.top() + ptTopLeft.y(); 208 | int y3 = rcSrc.top() + nHeight - ptTopLeft.y(); 209 | int y4 = rcSrc.top() + nHeight; 210 | // 211 | arrayRect[0] = QRect(QPoint(x1, y1), QPoint(x2, y2)); 212 | arrayRect[1] = QRect(QPoint(x2 + 1, y1), QPoint(x3, y2)); 213 | arrayRect[2] = QRect(QPoint(x3 + 1, y1), QPoint(x4, y2)); 214 | 215 | arrayRect[3] = QRect(QPoint(x1, y2 + 1), QPoint(x2, y3)); 216 | arrayRect[4] = QRect(QPoint(x2 + 1, y2 + 1), QPoint(x3, y3)); 217 | arrayRect[5] = QRect(QPoint(x3 + 1, y2 + 1), QPoint(x4, y3)); 218 | 219 | arrayRect[6] = QRect(QPoint(x1, y3 + 1), QPoint(x2, y4)); 220 | arrayRect[7] = QRect(QPoint(x2 + 1, y3 + 1), QPoint(x3, y4)); 221 | arrayRect[8] = QRect(QPoint(x3 + 1, y3 + 1), QPoint(x4, y4)); 222 | // 223 | return true; 224 | } 225 | 226 | bool Skin9GridImage::setImage(const QImage &image, QPoint ptTopLeft) 227 | { 228 | clear(); 229 | // 230 | m_img = image; 231 | // 232 | int nImageWidth = m_img.width(); 233 | int nImageHeight = m_img.height(); 234 | // 235 | return splitRect(QRect(0, 0, nImageWidth, nImageHeight), ptTopLeft, m_arrayImageGrid, 9); 236 | } 237 | 238 | void Skin9GridImage::drawBorder(QPainter *p, QRect rc) const 239 | { 240 | QRect arrayDest[9]; 241 | // 242 | splitRect(rc, m_arrayImageGrid[0].bottomRight(), arrayDest, 9); 243 | // 244 | for (int i = 0; i < 9; i++) { 245 | if (i == 4) 246 | continue; 247 | // 248 | const QRect& rcSrc = m_arrayImageGrid[i]; 249 | const QRect& rcDest = arrayDest[i]; 250 | // 251 | p->drawImage(rcDest, m_img, rcSrc); 252 | } 253 | } 254 | 255 | 256 | ShadowWidget::ShadowWidget(int shadowSize, QWidget *parent) 257 | : m_shadowSize(shadowSize) 258 | , QWidget(parent) 259 | , m_shadow(new Skin9GridImage()) 260 | { 261 | setAttribute(Qt::WA_TranslucentBackground); 262 | setWindowFlag(Qt::FramelessWindowHint); 263 | setMouseTracking(true); 264 | // 265 | QImage image = MakeShadowImage(shadowSize, true); 266 | m_shadow->setImage(image, QPoint(shadowSize + 1, shadowSize + 1)); 267 | } 268 | 269 | void ShadowWidget::paintEvent(QPaintEvent *e) 270 | { 271 | Q_UNUSED(e) 272 | QPainter painter(this); 273 | m_shadow->drawBorder(&painter, rect()); 274 | } 275 | 276 | MakePixmapWidget::MakePixmapWidget(QWidget *parent) 277 | : QWidget(parent) 278 | { 279 | resize(400, 300); 280 | setAttribute(Qt::WA_TranslucentBackground); 281 | setWindowFlags(Qt::FramelessWindowHint); 282 | setContentsMargins(0, 0, 0, 0); 283 | 284 | QVBoxLayout *pLayout = new QVBoxLayout(this); 285 | pLayout->setContentsMargins(0, 0, 0, 0); 286 | pLayout->setSpacing(0); 287 | int shadowSize = 20; 288 | ShadowWidget *pShadowWidget = new ShadowWidget(shadowSize, this); 289 | pShadowWidget->setContentsMargins(shadowSize, shadowSize, shadowSize, shadowSize); 290 | pLayout->addWidget(pShadowWidget); 291 | 292 | QLayout* rootLayout = new QBoxLayout(QBoxLayout::TopToBottom); 293 | pShadowWidget->setLayout(rootLayout); 294 | rootLayout->setContentsMargins(0, 0, 0, 0); 295 | rootLayout->setSpacing(0); 296 | 297 | QWidget* shadowClientWidget = new QWidget(pShadowWidget); 298 | rootLayout->addWidget(shadowClientWidget); 299 | // 300 | QVBoxLayout* shadowClientLayout = new QVBoxLayout(); 301 | shadowClientLayout->setContentsMargins(0, 0, 0, 0); 302 | shadowClientLayout->setSpacing(0); 303 | shadowClientWidget->setLayout(shadowClientLayout); 304 | shadowClientWidget->setAutoFillBackground(true); 305 | shadowClientWidget->setCursor(QCursor(Qt::ArrowCursor)); 306 | 307 | // 308 | QWidget *clientWidget = new QWidget(shadowClientWidget); 309 | shadowClientLayout->addWidget(clientWidget); 310 | 311 | // 312 | QVBoxLayout *clientLayout = new QVBoxLayout(); 313 | clientWidget->setLayout(clientLayout); 314 | // 315 | clientLayout->setSpacing(0); 316 | clientLayout->setContentsMargins(0, 0, 0, 0); 317 | } 318 | 319 | 320 | 321 | 322 | 323 | 324 | -------------------------------------------------------------------------------- /MakePixmapWidget.h: -------------------------------------------------------------------------------- 1 | /** 2 | * 去掉标题之后添加边框阴影 3 | * 4 | * MakePixmapWidget.h 5 | * 构造出边框阴影QImage方法的头文件。 6 | * 7 | * FlyWM_ 8 | * GitHub: https://github.com/FlyWM 9 | * CSDN: https://blog.csdn.net/a844651990 10 | * 11 | */ 12 | 13 | #ifndef MAKEPIXMAPWIDGET_H 14 | #define MAKEPIXMAPWIDGET_H 15 | 16 | #include 17 | 18 | class QPainter; 19 | class QLineEdit; 20 | class QLabel; 21 | 22 | class Skin9GridImage 23 | { 24 | protected: 25 | QImage m_img; 26 | QRect m_arrayImageGrid[9]; 27 | // 28 | bool clear(); 29 | public: 30 | static bool splitRect(const QRect& rcSrc, QPoint ptTopLeft, QRect* parrayRect, int nArrayCount); 31 | // bool setImage(const CString& strImageFileName, QPoint ptTopLeft); 32 | bool setImage(const QImage& image, QPoint ptTopLeft); 33 | // // 34 | // void draw(QPainter* p, QRect rc, int nAlpha) const; 35 | void drawBorder(QPainter* p, QRect rc) const; 36 | // bool valid() const; 37 | // // 38 | // QSize actualSize() const { return m_img.size(); } 39 | }; 40 | 41 | 42 | class ShadowWidget : public QWidget 43 | { 44 | Q_OBJECT 45 | public: 46 | explicit ShadowWidget(int shadowSize, QWidget *parent = nullptr); 47 | 48 | virtual void paintEvent(QPaintEvent *e); 49 | 50 | private: 51 | Skin9GridImage* m_shadow; 52 | int m_shadowSize; 53 | }; 54 | 55 | class MakePixmapWidget : public QWidget 56 | { 57 | Q_OBJECT 58 | public: 59 | explicit MakePixmapWidget(QWidget *parent = nullptr); 60 | 61 | signals: 62 | 63 | public slots: 64 | }; 65 | 66 | #endif // MAKEPIXMAPWIDGET_H 67 | -------------------------------------------------------------------------------- /NoShadowWidget.cpp: -------------------------------------------------------------------------------- 1 | /** 2 | * 去掉标题之后添加边框阴影 3 | * 4 | * NoShadowWidget.cpp 5 | * 去掉标题栏之后无边框阴影的cpp文件。 6 | * 7 | * FlyWM_ 8 | * GitHub: https://github.com/FlyWM 9 | * CSDN: https://blog.csdn.net/a844651990 10 | * 11 | */ 12 | #include "NoShadowWidget.h" 13 | 14 | NoShadowWidget::NoShadowWidget(QWidget *parent) 15 | : QWidget(parent) 16 | { 17 | setWindowFlags(Qt::FramelessWindowHint); 18 | } 19 | -------------------------------------------------------------------------------- /NoShadowWidget.h: -------------------------------------------------------------------------------- 1 | /** 2 | * 去掉标题之后添加边框阴影 3 | * 4 | * NoShadowWidget.h 5 | * 去掉标题栏之后无边框阴影的头文件。 6 | * 7 | * FlyWM_ 8 | * GitHub: https://github.com/FlyWM 9 | * CSDN: https://blog.csdn.net/a844651990 10 | * 11 | */ 12 | 13 | #ifndef NOSHADOWWIDGET_H 14 | #define NOSHADOWWIDGET_H 15 | 16 | #include 17 | 18 | class NoShadowWidget : public QWidget 19 | { 20 | Q_OBJECT 21 | public: 22 | explicit NoShadowWidget(QWidget *parent = nullptr); 23 | 24 | signals: 25 | 26 | public slots: 27 | }; 28 | 29 | #endif // NOSHADOWWIDGET_H 30 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # ShadowWidget 2 | 基于Qt5的去掉标题栏之后添加边框阴影的解决方案 3 | ### 调用Windows相关API 4 | ![image](https://github.com/FlyWM/ShadowWidget/blob/master/samples/sample1.png) 5 | ### 使用Qt的QGraphicsDropShadowEffect类来实现 6 | ![image](https://github.com/FlyWM/ShadowWidget/blob/master/samples/sample2.png) 7 | ### 使用Qt的qDrawBorderPixmap函数来实现 8 | ![image](https://github.com/FlyWM/ShadowWidget/blob/master/samples/sample3.png) 9 | ### 构造出边框阴影QImage并绘制 10 | ![image](https://github.com/FlyWM/ShadowWidget/blob/master/samples/sample4.png) 11 | -------------------------------------------------------------------------------- /ShadowEffectWidget.cpp: -------------------------------------------------------------------------------- 1 | /** 2 | * 去掉标题之后添加边框阴影 3 | * 4 | * ShadowEffectWidget.cpp 5 | * 使用Qt的QGraphicsDropShadowEffect类来实现边框阴影cpp文件。 6 | * 7 | * FlyWM_ 8 | * GitHub: https://github.com/FlyWM 9 | * CSDN: https://blog.csdn.net/a844651990 10 | * 11 | */ 12 | 13 | #include 14 | #include 15 | #include "ShadowEffectWidget.h" 16 | 17 | ShadowEffectWidget::ShadowEffectWidget(QWidget *parent) 18 | : QWidget(parent) 19 | { 20 | resize(400, 300); 21 | setWindowFlags(windowFlags() | Qt::FramelessWindowHint); 22 | setAttribute(Qt::WA_TranslucentBackground); 23 | QWidget *pCentralWidget = new QWidget(this); 24 | pCentralWidget->setStyleSheet("background-color: white"); 25 | QHBoxLayout *pLayout = new QHBoxLayout(this); 26 | pLayout->addWidget(pCentralWidget); 27 | pLayout->setContentsMargins(20, 20, 20, 20); 28 | 29 | QGraphicsDropShadowEffect *pEffect = new QGraphicsDropShadowEffect(pCentralWidget); 30 | pEffect->setOffset(0, 0); 31 | pEffect->setColor(QColor(QStringLiteral("black"))); 32 | pEffect->setBlurRadius(30); 33 | pCentralWidget->setGraphicsEffect(pEffect); 34 | } 35 | -------------------------------------------------------------------------------- /ShadowEffectWidget.h: -------------------------------------------------------------------------------- 1 | /** 2 | * 去掉标题之后添加边框阴影 3 | * 4 | * ShadowEffectWidget.h 5 | * 使用Qt的QGraphicsDropShadowEffect类来实现边框阴影的头文件。 6 | * 7 | * FlyWM_ 8 | * GitHub: https://github.com/FlyWM 9 | * CSDN: https://blog.csdn.net/a844651990 10 | * 11 | */ 12 | 13 | #ifndef SHADOWEFFECTWIDGET_H 14 | #define SHADOWEFFECTWIDGET_H 15 | 16 | #include 17 | 18 | class ShadowEffectWidget : public QWidget 19 | { 20 | Q_OBJECT 21 | public: 22 | explicit ShadowEffectWidget(QWidget *parent = nullptr); 23 | 24 | signals: 25 | 26 | public slots: 27 | }; 28 | 29 | #endif // SHADOWEFFECTWIDGET_H 30 | -------------------------------------------------------------------------------- /ShadowWidget.pro: -------------------------------------------------------------------------------- 1 | #------------------------------------------------- 2 | # 3 | # Project created by QtCreator 2018-12-09T09:35:40 4 | # 5 | #------------------------------------------------- 6 | 7 | QT += core gui 8 | 9 | greaterThan(QT_MAJOR_VERSION, 4): QT += widgets 10 | 11 | TARGET = ShadowWidget 12 | TEMPLATE = app 13 | 14 | # The following define makes your compiler emit warnings if you use 15 | # any feature of Qt which has been marked as deprecated (the exact warnings 16 | # depend on your compiler). Please consult the documentation of the 17 | # deprecated API in order to know how to port your code away from it. 18 | DEFINES += QT_DEPRECATED_WARNINGS 19 | 20 | # You can also make your code fail to compile if you use deprecated APIs. 21 | # In order to do so, uncomment the following line. 22 | # You can also select to disable deprecated APIs only up to a certain version of Qt. 23 | #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 24 | 25 | 26 | SOURCES += \ 27 | main.cpp \ 28 | ShadowEffectWidget.cpp \ 29 | WinAPIShadowWidget.cpp \ 30 | WindWMAPI.cpp \ 31 | DrawBorderPixmapWidget.cpp \ 32 | MakePixmapWidget.cpp \ 33 | NoShadowWidget.cpp 34 | 35 | HEADERS += \ 36 | ShadowEffectWidget.h \ 37 | WinAPIShadowWidget.h \ 38 | WindWMAPI.h \ 39 | DrawBorderPixmapWidget.h \ 40 | MakePixmapWidget.h \ 41 | NoShadowWidget.h 42 | 43 | FORMS += 44 | 45 | RESOURCES += \ 46 | img.qrc 47 | 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6 | * 7 | * FlyWM_ 8 | * GitHub: https://github.com/FlyWM 9 | * CSDN: https://blog.csdn.net/a844651990 10 | * 11 | */ 12 | 13 | #include "WinAPIShadowWidget.h" 14 | #include "windwmapi.h" 15 | #pragma comment(lib, "user32.lib") 16 | WinAPIShadowWidget::WinAPIShadowWidget(QWidget *parent) 17 | : QWidget(parent) 18 | { 19 | resize(400, 300); 20 | setWindowFlags(windowFlags() | Qt::FramelessWindowHint); 21 | HWND hwnd = (HWND)this->winId(); 22 | DWORD style = ::GetWindowLong(hwnd, GWL_STYLE); 23 | 24 | // 此行代码可以带回Aero效果，同时也带回了标题栏和边框,在nativeEvent()会再次去掉标题栏 25 | ::SetWindowLong(hwnd, GWL_STYLE, style | WS_MAXIMIZEBOX | WS_THICKFRAME | WS_CAPTION); 26 | //we better left 1 piexl width of border untouch, so OS can draw nice shadow around it 27 | const MARGINS shadow = { 1, 1, 1, 1 }; 28 | WinDwmapi::instance()->DwmExtendFrameIntoClientArea(HWND(winId()), &shadow); 29 | } 30 | 31 | bool WinAPIShadowWidget::nativeEvent(const QByteArray &eventType, void *message, long *result) 32 | { 33 | MSG* msg = (MSG *)message; 34 | switch (msg->message) 35 | { 36 | case WM_NCCALCSIZE: 37 | { 38 | // this kills the window frame and title bar we added with WS_THICKFRAME and WS_CAPTION 39 | *result = 0; 40 | return true; 41 | } 42 | default: 43 | return QWidget::nativeEvent(eventType, message, result); 44 | } 45 | } 46 | 47 | 48 | -------------------------------------------------------------------------------- /WinAPIShadowWidget.h: -------------------------------------------------------------------------------- 1 | /** 2 | * 去掉标题之后添加边框阴影 3 | * 4 | * WinAPIShadowWidget.h 5 | * 调用Windows相关AP来实现边框阴影的头文件。 6 | * 7 | * FlyWM_ 8 | * GitHub: https://github.com/FlyWM 9 | * CSDN: https://blog.csdn.net/a844651990 10 | * 11 | */ 12 | 13 | #ifndef WINAPISHADOWWIDGET_H 14 | #define WINAPISHADOWWIDGET_H 15 | 16 | #include 17 | 18 | class WinAPIShadowWidget : public QWidget 19 | { 20 | Q_OBJECT 21 | public: 22 | explicit WinAPIShadowWidget(QWidget *parent = nullptr); 23 | 24 | bool nativeEvent(const QByteArray &eventType, void *message, long *result); 25 | 26 | public slots: 27 | }; 28 | 29 | #endif // WINAPISHADOWWIDGET_H 30 | -------------------------------------------------------------------------------- /WindWMAPI.cpp: -------------------------------------------------------------------------------- 1 | /** 2 | * 去掉标题之后添加边框阴影 3 | * 4 | * windwmapi.cpp 5 | * 封装windows api的cpp文件。 6 | * 7 | * FlyWM_ 8 | * GitHub: https://github.com/FlyWM 9 | * CSDN: https://blog.csdn.net/a844651990 10 | * 11 | */ 12 | 13 | #include "windwmapi.h" 14 | 15 | WinDwmapi::WinDwmapi() 16 | : dwmapi_dll_(LoadLibraryW(L"dwmapi.dll")) 17 | , dwm_is_composition_enabled_(NULL) 18 | { 19 | if (dwmapi_dll_) { 20 | dwm_is_composition_enabled_ = \ 21 | reinterpret_cast(GetProcAddress(dwmapi_dll_, "DwmIsCompositionEnabled")); 22 | dwm_extendframe_into_client_area_ = \ 23 | reinterpret_cast(GetProcAddress(dwmapi_dll_, "DwmExtendFrameIntoClientArea")); 24 | } 25 | } 26 | 27 | WinDwmapi::~WinDwmapi() 28 | { 29 | if (dwmapi_dll_) { 30 | FreeLibrary(dwmapi_dll_); 31 | } 32 | } 33 | 34 | HRESULT WinDwmapi::DwmIsCompositionEnabled(BOOL *pfEnabled) const 35 | { 36 | if (dwm_is_composition_enabled_) { 37 | return dwm_is_composition_enabled_(pfEnabled); 38 | } 39 | 40 | return E_NOTIMPL; 41 | } 42 | 43 | HRESULT WinDwmapi::DwmExtendFrameIntoClientArea(HWND hWnd, const MARGINS *pMarInset) const 44 | { 45 | if (dwm_extendframe_into_client_area_) { 46 | return dwm_extendframe_into_client_area_(hWnd, pMarInset); 47 | } 48 | 49 | return E_NOTIMPL; 50 | } 51 | 52 | const WinDwmapi *WinDwmapi::instance() 53 | { 54 | static const WinDwmapi s_dwmapi; 55 | return &s_dwmapi; 56 | } 57 | -------------------------------------------------------------------------------- /WindWMAPI.h: -------------------------------------------------------------------------------- 1 | /** 2 | * 去掉标题之后添加边框阴影 3 | * 4 | * windwmapi.h 5 | * 封装windows api的头文件。 6 | * 7 | * FlyWM_ 8 | * GitHub: https://github.com/FlyWM 9 | * CSDN: https://blog.csdn.net/a844651990 10 | * 11 | */ 12 | 13 | #ifndef WINDWMAPI_H 14 | #define WINDWMAPI_H 15 | 16 | #include 17 | 18 | typedef struct _MARGINS 19 | { 20 | int cxLeftWidth; // width of left border that retains its size 21 | int cxRightWidth; // width of right border that retains its size 22 | int cyTopHeight; // height of top border that retains its size 23 | int cyBottomHeight; // height of bottom border that retains its size 24 | } MARGINS, *PMARGINS; 25 | 26 | class WinDwmapi 27 | { 28 | public: 29 | WinDwmapi(); 30 | ~WinDwmapi(); 31 | 32 | typedef HRESULT (WINAPI* DwmIsCompositionEnabledPtr)(BOOL* pfEnabled); 33 | typedef HRESULT (WINAPI* DwmExtendFrameIntoClientAreaPtr)(HWND hWnd, const MARGINS *pMarInset); 34 | 35 | HRESULT DwmIsCompositionEnabled(BOOL* pfEnabled) const; 36 | HRESULT DwmExtendFrameIntoClientArea(HWND hWnd, const MARGINS *pMarInset) const; 37 | 38 | static const WinDwmapi* instance(); 39 | 40 | private: 41 | DwmIsCompositionEnabledPtr dwm_is_composition_enabled_; 42 | DwmExtendFrameIntoClientAreaPtr dwm_extendframe_into_client_area_; 43 | HMODULE dwmapi_dll_; 44 | }; 45 | 46 | #endif // WINDWMAPI_H 47 | -------------------------------------------------------------------------------- /client-shadow.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/FlyWM/ShadowWidget/391e77b0df9eee82596a65df5ff5393393962195/client-shadow.png -------------------------------------------------------------------------------- /img.qrc: -------------------------------------------------------------------------------- 1 | 2 | 3 | client-shadow.png 4 | 5 | 6 | -------------------------------------------------------------------------------- /main.cpp: -------------------------------------------------------------------------------- 1 | /** 2 | * 去掉标题之后添加边框阴影 3 | * 4 | * main.cpp 5 | * 入口函数文件。 6 | * 7 | * FlyWM_ 8 | * GitHub: https://github.com/FlyWM 9 | * CSDN: https://blog.csdn.net/a844651990 10 | * 11 | */ 12 | 13 | #include 14 | #include "ShadowEffectWidget.h" 15 | #include "WinAPIShadowWidget.h" 16 | #include "DrawBorderPixmapWidget.h" 17 | #include "MakePixmapWidget.h" 18 | #include "NoShadowWidget.h" 19 | 20 | int main(int argc, char *argv[]) 21 | { 22 | QApplication a(argc, argv); 23 | 24 | WinAPIShadowWidget w; 25 | w.show(); 26 | 27 | return a.exec(); 28 | } 29 | -------------------------------------------------------------------------------- /samples/sample1.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/FlyWM/ShadowWidget/391e77b0df9eee82596a65df5ff5393393962195/samples/sample1.png -------------------------------------------------------------------------------- /samples/sample2.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/FlyWM/ShadowWidget/391e77b0df9eee82596a65df5ff5393393962195/samples/sample2.png -------------------------------------------------------------------------------- /samples/sample3.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/FlyWM/ShadowWidget/391e77b0df9eee82596a65df5ff5393393962195/samples/sample3.png -------------------------------------------------------------------------------- /samples/sample4.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/FlyWM/ShadowWidget/391e77b0df9eee82596a65df5ff5393393962195/samples/sample4.png --------------------------------------------------------------------------------