Qt实现桌⾯右下⾓消息弹窗提⽰
简单的做了⼀个类似QQ消息提⽰的消息弹窗提⽰的⼩模块，便于在系统后台程序提⽰检测的信息，使⽤Qt开发，设计整体思路是做⼀个⽆框架的widget，⾃⼰实现标题栏和内容栏，添加了向上移出，⾃动消隐退出效果，窗体简单，模块结构便于以后进⾏扩展和移植，旨在显⽰⽂字信息，通过按钮操作与主程序进⾏通信，运⾏结果如图
⼀、弹窗主体部分 class widget
1 #include "widget.h"
2
3 #include "titlewidget.h"
4
5 #include <QVBoxLayout>
6
7 #include "mypushbutton.h"
8
9 #include <QLabel>
10
11 #include <QPainter>
12
13 #include <QBitmap>
14
15 #include <QDesktopWidget>
16
17 #include <QApplication>
18
qq消息19 #include <QTimer>
20
21 #include <QDesktopServices>
22
华生电风扇23
24
25 Widget::Widget(QWidget *parent) :
26
27 QWidget(parent)
28
29 {
30
31 setWindowFlags(Qt::FramelessWindowHint|Qt::WindowStaysOnTopHint);
32
33 isEnter = false;
34
35 titleW=new titleWidget;
36
37 connect(titleW,SIGNAL(myClose()),this,SLOT(close()));
38
39
40
41 content=new QLabel;
42
43 content->setWordWrap(true);
44
45 content->setAlignment(Qt::AlignTop);
46
47 content->setFixedSize(300,100);
48
49 btnLook=new myPushButton("look.png","查看");
50
51 connect(btnLook,SIGNAL(clicked()),this,SLOT(seeInfo()));
52
53
54
55 QVBoxLayout*mainLayout=new QVBoxLayout;
56
57 mainLayout->setMargin(0);
58
59 mainLayout->addWidget(titleW);
60
61 mainLayout->addWidget(content);
62
63 content->setMargin(5);
64
65 mainLayout->addWidget(btnLook,0,Qt::AlignRight);
66
67 setLayout(mainLayout);
68
69
70
71 setFixedSize(sizeHint().width(),sizeHint().height());
75 timerShow=new QTimer(this);
76
77 connect(timerShow,SIGNAL(timeout()),this,SLOT(myMove())); 78
79 timerStay=new QTimer(this);
80
81 connect(timerStay,SIGNAL(timeout()),this,SLOT(myStay())); 82
83 timerClose=new QTimer(this);
84
85 connect(timerClose,SIGNAL(timeout()),this,SLOT(myClose())); 86
87 }
88
89
90
91 Widget::~Widget()
92
93 {
94
95 }
96
97
98
99void Widget::setMsg(QString title, QString content, QString work) 100
101 {
102
103 titleW->setTitleText(""+title);
104
105this->content->setText(""+content);
106
107 }
108
109
110
111void Widget::paintEvent(QPaintEvent *)
112
113 {
114
115 QBitmap bitmap(this->size());
116
117 bitmap.fill(Qt::white);
118
119 QPainter painter(this);
120
121 painter.setBrush(QBrush(QColor(250,240,230)));
122
123 painter.setPen(QPen(QBrush(QColor(255,222,173)),4));
124
125 painter.(),5,5);
126
127 setMask(bitmap);
128
129 }
130
131void Widget::showAsQQ()
132
133 {
134
135 QDesktopWidget *deskTop=QApplication::desktop();
136
137 deskRect=deskTop->availableGeometry();
138
139
140
141 normalPoint.setX(deskRect.width()-rect().width()-1);
142
143 normalPoint.setY(deskRect.height()-rect().height());
144
145 move(normalPoint.x(),deskRect.height()-1);
146
147 show();
148
149 timerShow->start(5);
150
蜘蛛组词151 }
152
153//平滑显⽰出来
154
155void Widget::myMove()
159static int beginY=QApplication::desktop()->height(); 160
161 beginY--;
162
163 move(normalPoint.x(),beginY);
164
165if(beginY<=normalPoint.y())
166
167 {
168
169 timerShow->stop();
170
171 timerStay->start(1000);
172
173 }
174
175 }
176
177//停留显⽰
178
179void Widget::myStay()
180
181 {
182
183static int timeCount=0;
184
185 timeCount++;
186
187if(timeCount>=9)
188
189 {
190
191 timerStay->stop();
192
193 timerClose->start(200);
国内十大男装品牌
194
195 }
196
197 }
198
199//⾃动关闭时实现淡出效果
200
201void Widget::myClose()
202
203 {
204
205static double tran=1.0;
206
207if(isEnter){
208
209 tran = 1.0;
210
赞美老师的诗句211 setWindowOpacity(tran);
212
213return;
软件测试原理214
215 }
216
217 tran-=0.1;
218
219if(tran<=0.0)
220
221 {
222
223 timerClose->stop();
224
225 emit close();
226
227 }
228
229else
230
231 setWindowOpacity(tran);
232
233 }
234
235void Widget::seeInfo()
236
237 {
238
239
243
244
245void Widget::enterEvent(QEvent *)
246
247 {
248
249 isEnter = true;
250
251 }
252
253void Widget::leaveEvent(QEvent *)
254
255 {
256
257 isEnter = false;
258
259 }
⼆、标题部分与⾃定义按钮部分
1//标题类 class titlewidget
2 #include "titlewidget.h"
3 #include <QLabel>
4 #include <QToolButton>
5 #include <QHBoxLayout>
6 #include <QPainter>
7 #include <QLinearGradient>
8 #include <QIcon>
9
10 titleWidget::titleWidget(QWidget *parent) :
11 QWidget(parent)
12 {
13 titleText=new QLabel;
14 btnClose = new QToolButton(this);
15 btnClose->setObjectName(QString::fromUtf8("btnClose"));
16 btnClose->setToolTip(tr("关闭"));
17 btnClose->setStyleSheet(QString::fromUtf8("QWidget[objectName=\"btnClose\"]{\n" 18"border-width: 0px;\n"
19"border-style: solid;\n"
20"padding: 0px;\n"
21"padding-left: 0px;\n"
22"padding-right: 0px;\n"
23"min-width: 16px;\n"
24"max-width: 16px;\n"
25"min-height: 16px;\n"
26"max-height: 16px;\n"
27"background-image: url(:/Resources/btn_close_normal.bmp);\n"
28"}\n"
29"\n"
30"QWidget[objectName=\"btnClose\"]:hover{\n"
31"background-image: url(:/Resources/btn_close_highlight.bmp);\n"
32"}\n"
33"\n"
34"QWidget[objectName=\"btnClose\"]:pressed{\n"
35"background-image: url(:/Resources/btn_close_down.bmp);\n"
36"}\n"
37""));
38 connect(btnClose,SIGNAL(clicked()),this,SIGNAL(myClose()));
39 QHBoxLayout *layout=new QHBoxLayout;
40 layout->addWidget(titleText,0,Qt::AlignLeft);
41 layout->addStretch();
42 layout->addWidget(btnClose,0,Qt::AlignRight);
43 layout->setMargin(0);
44 setLayout(layout);
45 setFixedHeight(20);
46 }
47
48void titleWidget::paintEvent(QPaintEvent *)
49 {
50 QLinearGradient linear(rect().topLeft(),rect().bottomRight());
51 linear.setColorAt(0,QColor(227,207,87));
52 linear.setColorAt(0.5,QColor(245,222,179));
53 linear.setColorAt(1,QColor(189,252,201));
54
55 QPainter painter(this);
56 painter.setBrush(QBrush(linear));
57 painter.setPen(Qt::NoPen);
58 painter.drawRect(rect());
59 }
60
63 titleText->setText(title);
64 }
65//按钮类：class mypushbutton
66 #include "mypushbutton.h"
67 #include <QPalette>
68 #include <QPixmap>
69 #include <QCursor>
70
71 myPushButton::myPushButton(QWidget *parent) :
72 QPushButton(parent)
73 {
74 }
75 myPushButton::myPushButton(QString iconStr,QString textStr, QWidget *parent):QPushButton(parent)
76 {
77 QPixmap pixmap(":/Resources/"+iconStr);
78 setIcon(QIcon(pixmap));
79 setIconSize(pixmap.size());
80 setText(textStr);
81 resize(pixmap.size());
82 setBkPalette(0);//设置背景完全透明
83 setFlat(true);
84 setAutoFillBackground(true);
85 }
86
87void myPushButton::setBkPalette(int transparency)//设置背景透明度
88 {
89 QPalette palette;
90 palette.setBrush(QPalette::Button,QBrush(QColor(255,255,255,transparency)));
91 setPalette(palette);
92 }
93void myPushButton::enterEvent(QEvent *)
94 {
95 setCursor(Qt::PointingHandCursor);
96 }
97void myPushButton::leaveEvent(QEvent *)
98 {
99 setCursor(Qt::CustomCursor);
100 }
101void myPushButton::mousePressEvent(QMouseEvent *e)
102 {
103
104 }
105void myPushButton::mouseReleaseEvent(QMouseEvent *e)
106 {
107
108 emit clicked();
109 }
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