Qt按钮自定义特效buttonEffects
.pro
1 QT += core gui
2
3 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
4
5 CONFIG += c++11
6
7 # The following define makes your compiler emit warnings if you use
8 # any Qt feature that has been marked deprecated (the exact warnings
9 # depend on your compiler). Please consult the documentation of the
10 # deprecated API in order to know how to port your code away from it.
11 DEFINES += QT_DEPRECATED_WARNINGS
12
13 # You can also make your code fail to compile if it uses deprecated APIs.
14 # In order to do so, uncomment the following line.
15 # You can also select to disable deprecated APIs only up to a certain version of Qt.
16 #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
17
18 SOURCES += \
19 main.cpp \
20 mainwindow.cpp
21
22 HEADERS += \
23 mainwindow.h
24
25 FORMS +=
26
27 TARGET = buttonEffects
28
29 # Default rules for deployment.
30 qnx: target.path = /tmp/$${TARGET}/bin
31 else: unix:!android: target.path = /opt/$${TARGET}/bin
32 !isEmpty(target.path): INSTALLS += target
main.cpp
1 #include <QApplication>
2 #include <mainwindow.h>
3
4 int main(int argc, char *argv[])
5 {
6 QApplication a(argc, argv);
7 TMainWnd window;
8 window.show();
9 window.resize(800,500);
10 return a.exec();
11 }
mainwindow.h
1 #ifndef MAINWINDOW_H
2 #define MAINWINDOW_H
3
4 #include <QWidget>
5 #include <QPushButton>
6 #include <QVBoxLayout>
7 #include <QTimerEvent>
8
9 class TPushBtn2 : public QPushButton
10 {
11 Q_OBJECT
12 public:
13 explicit TPushBtn2(QWidget *parent = 0);
14 TPushBtn2(const QString &,QWidget *parent = 0);
15 void UpdateAlpha();
16 signals:
17 public slots:
18 protected:
19 void timerEvent(QTimerEvent *e);
20 void enterEvent(QEvent *);
21 void leaveEvent(QEvent *);
22 void changeMe();
23 private:
24 int _alpha;
25 int _alphaTimer;
26 qint8 _nDirection;
27 };
28
29 class TMainWnd : public QWidget
30 {
31 Q_OBJECT
32 public:
33 explicit TMainWnd(QWidget *parent = 0);
34 signals:
35 public slots:
36 };
37 #endif // MAINWINDOW_H
mainwindow.cpp
1 #include "mainwindow.h"
2
3 TMainWnd::TMainWnd(QWidget *parent) :
4 QWidget(parent)
5 {
6 QVBoxLayout *mainLO = new QVBoxLayout;
7 for(int i = 0 ; i < 10 ; i ++){
8 TPushBtn2 *btn = new TPushBtn2(tr("Test %1").arg(i));
9 mainLO->addWidget(btn );
10 }
11 // style()->drawControl(.drawPushButton(this, paint);
12 setLayout(mainLO);
13 }
14
15 TPushBtn2::TPushBtn2(QWidget *parent) :
16 QPushButton(parent)
17 {}
18
19 TPushBtn2::TPushBtn2(const QString &text, QWidget *parent)
20 :QPushButton(text,parent),_nDirection(1)
21 {}
22
23 void TPushBtn2::timerEvent(QTimerEvent *e)
24 {
25 changeMe();
26 }
27
28 void TPushBtn2::enterEvent(QEvent *)
29 {
30 _alpha = 255;
31 _nDirection = 1;
32 changeMe();
33 }
34
35 void TPushBtn2::leaveEvent(QEvent *)
36 {
37 if(_alphaTimer) killTimer(_alphaTimer);
38 _nDirection = -1;
39 _alphaTimer = startTimer(100);
40 }
41
42 void TPushBtn2::changeMe()
43 {
44 _alpha += 45 * _nDirection;
45
46 QPalette pal =this-> palette();
47
48 QColor cr = pal.window().color();
49
50 if(_alpha >= 255){
51 if(_alphaTimer) killTimer(_alphaTimer);
52 _alphaTimer = 0;
53 _alpha = 255 ;
54 } else if( _alpha <= 0) {
55 killTimer(_alphaTimer);
56 _alphaTimer = 0;
57 _alpha = 0 ;
58 }
59 cr.setRed(_alpha);
60 cr.setBlue(_alpha);
61 pal.setColor(QPalette::All,QPalette::Button , cr);
62
63 this-> setPalette(pal);
64 }
