feat: v1.3 使用自定义MyStyle风格，以ScrollBar控件为显示

QtCustomStyleEx/ExMyGlobal.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright (C)  2019 ~ 2019 touwoyimuli.  All rights reserved.
+ *
+ * Author:  touwoyimuli <touwoyimuli@gmai.com>
+ *
+ * github:  https://github.com/touwoyimuli
+ * blogs:   https://touwoyimuli.github.io/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://touwoyimuli.github.io/>.
+ */
+#ifndef EXMYGLOBAL_H
+#define EXMYGLOBAL_H
+
+//定义命名空间宏
+#define EXWIDGET_BEGIN_NAMESPACE namespace ExPlumStyle {
+#define EXWIDGET_END_NAMESPACE }
+
+#define EXWIDGET_USE_NAMESPACE using namespace ExPlumStyle;
+
+//ExPlumStyle命名空间里面嵌套的的子命名空间
+#define EXDRAWUTILS_BEGIN_NAMESPACE namespace ExDrawUtils {
+#define EXDRAWUTILS_END_NAMESPACE }
+
+#endif // EXMYGLOBAL_H

QtCustomStyleEx/ExMyStyle.cpp

@@ -21,7 +21,131 @@
  */
 #include "ExMyStyle.h"
 
+#include <QProxyStyle>
+#include <QDebug>
+#include <QPainter>
+#include <QStyleOption>
+#include <QLinearGradient>
+
+EXWIDGET_BEGIN_NAMESPACE
 ExMyStyle::ExMyStyle()
 {
 
 }
+
+void ExMyStyle::polish(QWidget *widget)
+{
+    QCommonStyle::polish(widget);
+}
+
+void ExMyStyle::unpolish(QWidget *widget)
+{
+    QCommonStyle::unpolish(widget);
+}
+
+void ExMyStyle::drawControl(QStyle::ControlElement element, const QStyleOption *opt, QPainter *p, const QWidget *w) const
+{
+    p->setRenderHint(QPainter::Antialiasing);
+
+    switch (element) {
+    case CE_ScrollBarAddPage: {  //增加页(在滑槽)
+        p->fillRect(opt->rect, QColor("#bfe9ff"));
+        return;
+    }
+    case CE_ScrollBarSubPage: {  //减少页(在滑槽)
+        p->fillRect(opt->rect, QColor("#EC6EAD"));
+        return;
+    }
+    case CE_ScrollBarSlider: {  //滑块
+        p->fillRect(opt->rect, QColor("#A8BFFF"));
+        return;
+    }
+    case CE_ScrollBarAddLine: {  //增加按钮
+        p->fillRect(opt->rect, QColor("#21d4fd"));
+        return;
+    }
+    case CE_ScrollBarSubLine: {  //减少按钮
+        p->fillRect(opt->rect, QColor("#de6161"));
+        return;
+    }
+    default:
+        break;
+    }
+
+    QCommonStyle::drawControl(element, opt, p, w);
+}
+
+void ExMyStyle::drawComplexControl(QStyle::ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p, const QWidget *widget) const
+{
+    switch (cc) {
+//    case CC_:
+//        break;
+    default:
+        break;
+    }
+
+    QCommonStyle::drawComplexControl(cc, opt, p, widget);
+}
+
+QSize ExMyStyle::sizeFromContents(QStyle::ContentsType ct, const QStyleOption *opt, const QSize &contentsSize, const QWidget *w) const
+{
+    QSize size = QCommonStyle::sizeFromContents(ct, opt, contentsSize, w);
+
+    switch (ct) {
+    case CT_ScrollBar: {
+        int widget = size.width();
+        int height = size.height();
+
+        if (widget < height)
+            size.setHeight(height * 1.2);
+
+        if (widget > height)
+            size.setWidth(widget * 1.2);
+
+        qDebug()<<"----01----:"<<size;
+        return size;
+    }
+    default:
+        break;
+    }
+
+    return size;
+}
+
+QRect ExMyStyle::subElementRect(QStyle::SubElement subElement, const QStyleOption *option, const QWidget *widget) const
+{
+    switch (subElement) {
+//    case SE_:
+//        break;
+    default:
+        break;
+    }
+
+    return QCommonStyle::subElementRect(subElement, option, widget);
+}
+
+int ExMyStyle::pixelMetric(QStyle::PixelMetric metric, const QStyleOption *option, const QWidget *widget) const
+{
+    switch (metric) {
+//    case PM_:
+//        return 36;
+    default:
+        break;
+    }
+
+    return QCommonStyle::pixelMetric(metric, option, widget);
+}
+
+int ExMyStyle::styleHint(QStyle::StyleHint stylehint, const QStyleOption *opt, const QWidget *widget, QStyleHintReturn *returnData) const
+{
+    switch (stylehint) {
+//    case SH_:
+//        break;
+    default:
+        break;
+    }
+
+    return QCommonStyle::styleHint(stylehint, opt, widget, returnData);
+}
+
+EXWIDGET_END_NAMESPACE

QtCustomStyleEx/ExMyStyle.h

@@ -22,13 +22,34 @@
 #ifndef EXMYSTYLE_H
 #define EXMYSTYLE_H
 
+#include "ExMyGlobal.h"
+
+#include "qglobal.h"
 #include <QCommonStyle>
 
+QT_BEGIN_NAMESPACE
+//class QCommonStyle;
+QT_END_NAMESPACE
 
+EXWIDGET_BEGIN_NAMESPACE
 class ExMyStyle : public QCommonStyle
 {
 public:
     ExMyStyle();
+
+    // QStyle interface
+public:
+    virtual void polish(QWidget *widget) override;
+    virtual void unpolish(QWidget *widget) override;
+    virtual void drawControl(ControlElement element, const QStyleOption *opt, QPainter *p, const QWidget *w) const override;
+    virtual void drawComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p, const QWidget *widget) const override;
+    virtual QSize sizeFromContents(ContentsType ct, const QStyleOption *opt, const QSize &contentsSize, const QWidget *w) const override;
+    virtual QRect subElementRect(SubElement subElement, const QStyleOption *option, const QWidget *widget) const override;
+    virtual int pixelMetric(PixelMetric metric, const QStyleOption *option, const QWidget *widget) const override;
+    virtual int styleHint(StyleHint stylehint, const QStyleOption *opt, const QWidget *widget, QStyleHintReturn *returnData) const override;
+
+public:
 };
+EXWIDGET_END_NAMESPACE
 
 #endif // EXMYSTYLE_H

QtCustomStyleEx/Example.cpp

@@ -21,6 +21,17 @@
  */
 #include "Example.h"
 
+#include <QStyleFactory>
+#include <QDebug>
+#include <QTableWidget>
+#include <QProgressBar>
+#include <QPushButton>
+#include <QApplication>
+#include <QSlider>
+#include <QScrollBar>
+
+EXWIDGET_USE_NAMESPACE
+
 Example::Example(QWidget *parent)
     : QWidget(parent)
 {
@@ -35,21 +46,22 @@ Example::~Example()
 void Example::init()
 {
     QTableWidget *table = new QTableWidget(10, 10, this);
-    QProgressBar *progressH = new QProgressBar(this);
+    QScrollBar *scrollBarH = new QScrollBar(this);
-    QProgressBar *progressV = new QProgressBar(this);
+    QScrollBar *scrollBarV = new QScrollBar(this);
 
     table->move(10, 10);
 
-    progressH->move(300, 50);
+    scrollBarH->move(300, 50);
-    progressH->setRange(0, 100);
+    scrollBarH->setRange(0, 100);
-    progressH->setValue(34);
+    scrollBarH->setValue(34);
-    progressH->resize(380, 40);
+    scrollBarH->resize(380, 20);
+    scrollBarH->setOrientation(Qt::Horizontal);
 
-    progressV->move(50, 250);
+    scrollBarV->move(50, 250);
-    progressV->setRange(0, 100);
+    scrollBarV->setRange(0, 100);
-    progressV->setValue(67);
+    scrollBarV->setValue(67);
-    progressV->resize(50, 380);
+    scrollBarV->resize(20, 380);
-    progressV->setOrientation(Qt::Vertical);
+    scrollBarV->setOrientation(Qt::Vertical);
 
     int i = 0;
     QStringList listStyle = QStyleFactory::keys();
@@ -64,6 +76,6 @@ void Example::init()
     QPushButton *btn = new QPushButton("ExMyStyle", this);
     btn->move(this->rect().right() - 100, this->rect().top() + i++ * 40);
     connect(btn, &QPushButton::clicked, this, [=](){
-        qApp->setStyle(QStyleFactory::create("ExMyStyle"));
+        qApp->setStyle(new ExMyStyle());
     });
 }

QtCustomStyleEx/Example.h

@@ -22,15 +22,9 @@
 #ifndef EXAMPLE_H
 #define EXAMPLE_H
 
-#include <QStyleFactory>
+#include <QWidget>   //Qt的库
-#include <QDebug>
-#include <QWidget>
-#include <QTableWidget>
-#include <QProgressBar>
-#include <QPushButton>
-#include <QApplication>
 
-#include "ExMyStyle.h"
+#include "ExMyStyle.h"  //自己的库
 
 class Example : public QWidget
 {

QtCustomStyleEx/QtCustomStyleEx.pro

@@ -8,7 +8,7 @@ QT       += core gui
 
 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 
-TARGET = QtCustomStyleEx
+TARGET = custom-style
 TEMPLATE = app
 
 # The following define makes your compiler emit warnings if you use
@@ -31,7 +31,8 @@ SOURCES += \
 
 HEADERS += \
         Example.h \
-    ExMyStyle.h
+    ExMyStyle.h \
+    ExMyGlobal.h
 
 
 # Default rules for deployment.