feat: Improve MyStyle, MyStyleHelp, MyStylePainter (mostly written, but not over)

QtMyStyleEx/QtExample03/QtStyleEx/mystyle.cpp

@@ -30,6 +30,28 @@ MyStyle::MyStyle()
 
 }
 
+//******************************************************************
+void MyStyle::drawPrimitive(const QStyle *style, MyStyle::PrimitiveElement pe, const QStyleOption *opt, QPainter *p, const QWidget *w)
+{
+
+}
+
+void MyStyle::drawControl(const QStyle *style, MyStyle::ControlElement element, const QStyleOption *opt, QPainter *p, const QWidget *w)
+{
+
+}
+
+QRect MyStyle::subElementRect(const QStyle *style, MyStyle::SubElement subElement, const QStyleOption *option, const QWidget *widget)
+{
+    return QRect();
+}
+
+int MyStyle::pixelMetric(const QStyle *style, MyStyle::PixelMetric metric, const QStyleOption *option, const QWidget *widget)
+{
+    return 0;
+}
+
+//******************************************************************
 void MyStyle::drawPrimitive(MyStyle::PrimitiveElement pe, const QStyleOption *opt, QPainter *p, const QWidget *w) const
 {
     proxy()->drawPrimitive(static_cast<QStyle::PrimitiveElement>(pe), opt, p, w);
@@ -98,7 +120,13 @@ void MyStyle::drawPrimitive(QStyle::PrimitiveElement pe, const QStyleOption *opt
     default:
         break;
     }
+
     QCommonStyle::drawPrimitive(pe, opt, p, w);
+
+    //后续分离开为模块的判断
+//    if (Q_UNLIKELY(pe < QStyle::PE_CustomBase))
+//    else
+//        drawPrimitive(this, static_cast<MyStyle::PrimitiveElement>(pe), opt, p, w);
 }
 
 void MyStyle::drawControl(QStyle::ControlElement element, const QStyleOption *opt, QPainter *p, const QWidget *w) const
@@ -216,6 +244,70 @@ int MyStyle::styleHint(QStyle::StyleHint stylehint, const QStyleOption *opt, con
     return QCommonStyle::styleHint(stylehint, opt, widget, returnData);
 }
 
+//******************************************************************
+MyStyleHelp::MyStyleHelp(const QStyle* style)
+{
+    setStyle(style);
+}
 
+void MyStyleHelp::setStyle(const QStyle* style)
+{
+    m_qStyle = style;
+    m_myStyle = qobject_cast<const MyStyle *>(style);
+}
 
+const QStyle *MyStyleHelp::qStyle() const
+{
+    return m_qStyle;
+}
+
+const MyStyle *MyStyleHelp::myStyle() const
+{
+    return m_myStyle;
+}
+
+void MyStyleHelp::drawPrimitive(MyStyle::PrimitiveElement pe, const QStyleOption *opt, QPainter *p, const QWidget *w) const
+{
+    m_myStyle ? m_myStyle->drawPrimitive(pe, opt, p, w)
+              : MyStyle::drawPrimitive(m_qStyle, pe, opt, p, w);
+}
+
+void MyStyleHelp::drawControl(MyStyle::ControlElement element, const QStyleOption *opt, QPainter *p, const QWidget *w) const
+{
+    m_myStyle ? m_myStyle->drawControl(element, opt, p, w)
+              : MyStyle::drawControl(m_qStyle, element, opt, p, w);
+}
+
+QRect MyStyleHelp::subElementRect(MyStyle::SubElement subElement, const QStyleOption *option, const QWidget *widget) const
+{
+    return m_myStyle ? m_myStyle->subElementRect(subElement, option, widget)
+                     : MyStyle::subElementRect(m_qStyle, subElement, option, widget);
+}
+
+int MyStyleHelp::pixelMetric(MyStyle::PixelMetric metric, const QStyleOption *option, const QWidget *widget) const
+{
+    return m_myStyle ? m_myStyle->pixelMetric(metric, option, widget)
+                     : MyStyle::pixelMetric(m_qStyle, metric, option, widget);
+}
+
+//******************************************************************
+void MyStylePainter::drawPrimitive(QStyle::PrimitiveElement pe, const QStyleOption *opt)
+{
+    m_qStyle->drawPrimitive(pe, opt, this, m_widget);
+}
+
+void MyStylePainter::drawPrimitive(MyStyle::PrimitiveElement pe, const QStyleOption *opt)
+{
+    m_myStyleHelp.drawPrimitive(pe, opt, this, m_widget);
+}
+
+void MyStylePainter::drawControl(QStyle::ControlElement element, const QStyleOption *opt)
+{
+    m_qStyle->drawControl(element, opt, this, m_widget);
+}
+
+void MyStylePainter::drawControl(MyStyle::ControlElement element, const QStyleOption *opt)
+{
+    m_myStyleHelp.drawControl(element, opt, this, m_widget);
+}
 

QtMyStyleEx/QtExample03/QtStyleEx/mystyle.h

@@ -23,10 +23,11 @@
 #define MYSTYLE_H
 
 #include <QCommonStyle>
+#include <QPainter>
 
 class MyStyle : public QCommonStyle
 {
-//    Q_OBJECT
+    Q_OBJECT //connect qobject_cast
 
 public:
     //这里新增加的枚举，是属于 MyStyle:: , 而非 QStyle:: 范围
@@ -59,7 +60,18 @@ public:
     // QStyle interface
 public:
 
+    //static 函数，供 MyStylrHelp 调用 [用来绘画自增加的控件枚举]
+    static void drawPrimitive(const QStyle *style, MyStyle::PrimitiveElement pe, const QStyleOption *opt, QPainter *p, const QWidget *w = nullptr);
+    static void drawControl(const QStyle *style, MyStyle::ControlElement element, const QStyleOption *opt, QPainter *p, const QWidget *w);
+    static QRect subElementRect(const QStyle *style, MyStyle::SubElement subElement, const QStyleOption *option, const QWidget *widget);
+//    static void drawComplexControl(const QStyle *style, MyStyle::ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p, const QWidget *widget) const;
+//    static QRect subControlRect(const QStyle *style, MyStyle::ComplexControl cc, const QStyleOptionComplex *opt, SubControl sc, const QWidget *widget) const;
+    static int pixelMetric(const QStyle *style, MyStyle::PixelMetric metric, const QStyleOption *option, const QWidget *widget);
+//    static QSize sizeFromContents(const QStyle *style, MyStyle::ContentsType ct, const QStyleOption *opt, const QSize &contentsSize, const QWidget *w) const;
+//    static int styleHint(const QStyle *style, MyStyle::StyleHint stylehint, const QStyleOption *opt, const QWidget *widget, QStyleHintReturn *returnData) const;
+
     //新增加的枚举属 MyStyle:: , 之能够在此内敛函数里面调用
+    //[主要用来绘画 自定义新增 的控件枚举 --> 实际调用在 下面的 virtual 里面绘画]
     inline void drawPrimitive(MyStyle::PrimitiveElement pe, const QStyleOption *opt, QPainter *p, const QWidget *w = nullptr) const;
     inline void drawControl(MyStyle::ControlElement element, const QStyleOption *opt, QPainter *p, const QWidget *w) const;
     inline QRect subElementRect(MyStyle::SubElement subElement, const QStyleOption *option, const QWidget *widget) const;
@@ -71,6 +83,7 @@ public:
 
     //这里的快捷方式创建的枚举,都是不带QStyle:: ; 但是快捷方式的定义是带是QStyle:: , 此处声明的地方必须加上 QStyle:: /*后面改写更复杂的得写上MyStyle:: 因添加自定义的枚举*/
     //这里 override 的虚函数，只能够调用旧有的  QStyle:: 的函数
+    //[主要用来绘画 Qt 、 自定义新增 的控件枚举]
     virtual void drawPrimitive(QStyle::PrimitiveElement pe, const QStyleOption *opt, QPainter *p, const QWidget *w) const override;
     virtual void drawControl(QStyle::ControlElement element, const QStyleOption *opt, QPainter *p, const QWidget *w) const override;
     virtual QRect subElementRect(QStyle::SubElement subElement, const QStyleOption *option, const QWidget *widget) const override;
@@ -96,4 +109,40 @@ public:
 
 };
 
+class MyStyleHelp
+{
+public:
+    inline MyStyleHelp (const QStyle* style = nullptr);
+
+    inline void setStyle(const QStyle* style);
+
+    inline const QStyle* qStyle() const;
+    inline const MyStyle* myStyle() const;
+
+    inline void drawPrimitive(MyStyle::PrimitiveElement pe, const QStyleOption *opt, QPainter *p, const QWidget *w = nullptr) const;
+    inline void drawControl(MyStyle::ControlElement element, const QStyleOption *opt, QPainter *p, const QWidget *w) const;
+    inline QRect subElementRect(MyStyle::SubElement subElement, const QStyleOption *option, const QWidget *widget) const;
+    inline int pixelMetric(MyStyle::PixelMetric metric, const QStyleOption *option, const QWidget *widget) const;
+
+private:
+    const QStyle* m_qStyle;
+    const MyStyle* m_myStyle;
+};
+
+class MyStylePainter : public QPainter
+{
+public:
+    MyStylePainter() {}
+    ~MyStylePainter() {}
+
+    inline void drawPrimitive(MyStyle::PrimitiveElement pe, const QStyleOption *opt);
+    inline void drawPrimitive(QStyle::PrimitiveElement pe, const QStyleOption *opt);
+    inline void drawControl(MyStyle::ControlElement element, const QStyleOption *opt);
+    inline void drawControl(QStyle::ControlElement element, const QStyleOption *opt);
+
+private:
+    QWidget* m_widget;
+    QStyle* m_qStyle;
+    MyStyleHelp m_myStyleHelp;
+};
 #endif // MYSTYLE_H

QtMyStyleEx/QtExample03/QtStyleEx/myswitchbutton.cpp

@@ -3,7 +3,7 @@
 #include "mystyle.h"
 
 #include <QStylePainter>
-#include <QStyleOptionButton>
+#include <QStyleOption>
 
 MySwitchButton::MySwitchButton(QWidget *parent)
     : QAbstractButton(parent)
@@ -30,7 +30,10 @@ void MySwitchButton::paintEvent(QPaintEvent *event)
     QStyleOptionButton opt;
     initStyleOption(&opt);
 
-    QStylePainter pa(this);
+//    MyStylePainter painter(this);
+//    MyStylePainter painter;
+//    painter.drawControl(MyStyle::CE_SwitchButton, &opt);//static_cast<QStyleOption>(opt));
+
 //    pa.drawControl(MyStyle::CE_SwitchButton, opt);
 }
 

QtMyStyleEx/QtExample03/QtStyleEx/myswitchbutton.h

@@ -2,6 +2,7 @@
 #define MYSWITCHBUTTON_H
 
 #include <QAbstractButton>
+#include <QStyleOption>
 class QStyleOptionButton;
 
 class MySwitchButtonPrivate;