QPushButton 控制两种状态
【1】Custom.cpp
1 #include "CustomButton.h"
2
3 CustomButton::CustomButton(QWidget* parent)
4 : QPushButton(parent)
5 , m_bCheckState(false)
6 {
7 setFixedSize(33, 33);
8 setFlat(true);
9 }
10
11 void CustomButton::mousePressEvent(QMouseEvent *event)
12 {
13 if (m_bCheckState)
14 {
15 m_bCheckState = false;
16 setStyleSheet("QPushButton{background-image:url(:/new/image/mute.png);border:none;}");
17 }
18 else
19 {
20 m_bCheckState = true;
21 setStyleSheet("QPushButton{background-image:url(:/new/image/unmute.png);border:none;}");
22 }
23
24 return QPushButton::mousePressEvent(event);
25 }
【2】Custom.h
1 #ifndef CUSTOMBUTTON_H
2 #define CUSTOMBUTTON_H
3
4 #include <QPushButton>
5
6 class CustomButton : public QPushButton
7 {
8 public:
9 CustomButton(QWidget* parent = Q_NULLPTR);
10
11 protected:
12 void mousePressEvent(QMouseEvent* event);
13
14 private:
15 bool m_bCheckState;
16 };
17
18 #endif // CUSTOMBUTTON_H
【3】pro
#-------------------------------------------------
#
# Project created by QtCreator
#
#-------------------------------------------------
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = TestState
TEMPLATE = app
# The following define makes your compiler emit warnings if you use
# any feature of Qt which as been marked as deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS
# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
SOURCES += main.cpp\
widget.cpp \
CustomButton.cpp
HEADERS += widget.h \
CustomButton.h
FORMS += widget.ui
RESOURCES += \
image.qrc
【4】其他默认文件
Good Good Study, Day Day Up.
顺序 选择 循环 总结
