The Ring programming language version 1.6 book - Part 66 of 189

1. Ring Documentation, Release 1.6
setGeometry(700,370,600,300)
setstylesheet("background-color: black")
}
player = new qmediaplayer() {
setmedia(new qurl("1.mp4"))
setvideooutput(videowidget)
setposition(35*60*1000)
}
player2 = new qmediaplayer() {
setmedia(new qurl("2.mp4"))
setvideooutput(videowidget2)
setposition(23*60*1000)
}
player3 = new qmediaplayer() {
setmedia(new qurl("3.mp4"))
setvideooutput(videowidget3)
setposition(14.22*60*1000)
}
player4 = new qmediaplayer() {
setmedia(new qurl("4.avi"))
setvideooutput(videowidget4)
setposition(8*60*1000)
}
showfullscreen()
}
exec()
}
The application during the runtime
57.24. QVideoWidget and QMediaPlayer 623

2. Ring Documentation, Release 1.6
57.25 Using QFrame
In this example we will learn about using the QFrame class
Load "guilib.ring"
New qApp {
win1 = new qMainWindow() {
setwindowtitle("Using QFrame")
for x = 0 to 10
frame1 = new qframe(win1,0) {
setGeometry(100,20+50*x,400,30)
setframestyle(QFrame_Raised | QFrame_WinPanel)
}
next
showMaximized()
}
exec()
}
The application during the runtime
57.25. Using QFrame 624

3. Ring Documentation, Release 1.6
57.26 Display Image using QLabel
In this example we will learn about displaying an image using the QLabel widget
Load "guilib.ring"
New qApp {
win1 = new qMainWindow() {
setwindowtitle("QLabel - Display image")
new qlabel(win1) {
image = new qpixmap("b:/mahmoud/photo/advice.jpg")
setpixmap(image)
setGeometry(0,0,image.width(),image.height())
}
57.26. Display Image using QLabel 625

4. Ring Documentation, Release 1.6
showMaximized()
}
exec()
}
The application during the runtime
57.27 Menubar and StyleSheet Example
In this example we will learn about creating menubar and setting the window stylesheet
Load "guilib.ring"
New qApp {
57.27. Menubar and StyleSheet Example 626

5. Ring Documentation, Release 1.6
win1 = new qMainWindow() {
setwindowtitle("Menubar")
menu1 = new qmenubar(win1) {
sub1 = addmenu("File")
sub1 {
oAction = new qAction(win1) {
settext("New")
setenabled(false)
}
addaction(oAction)
oAction = new qAction(win1) {
settext("Open")
setcheckable(true)
setchecked(true)
setstatustip("open new file")
}
addaction(oAction)
oAction = new qAction(win1) {
settext("Save")
}
addaction(oAction)
oAction = new qAction(win1) {
settext("Save As")
}
addaction(oAction)
addseparator()
oAction = new qaction(win1)
oAction.settext("Exit")
oAction.setclickevent("myapp.quit()")
addaction(oAction)
}
}
status1 = new qstatusbar(win1) {
showmessage("Ready!",0)
}
setmenubar(menu1)
setmousetracking(true)
setstatusbar(status1)
setStyleSheet("color: black; selection-color: black;
selection-background-color:white ;
background: QLinearGradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #eef, stop: 1 #ccf);")
showmaximized()
}
exec()
}
The application during the runtime
57.27. Menubar and StyleSheet Example 627

6. Ring Documentation, Release 1.6
57.28 QLineEdit Events and QMessageBox
In this example we will learn about using QLineEdit Events and displaying a Messagebox
Load "guilib.ring"
MyApp = New qApp {
win1 = new qWidget() {
setwindowtitle("Welcome")
setGeometry(100,100,400,300)
label1 = new qLabel(win1) {
settext("What is your name ?")
setGeometry(10,20,350,30)
setalignment(Qt_AlignHCenter)
}
btn1 = new qpushbutton(win1) {
setGeometry(10,200,100,30)
settext("Say Hello")
setclickevent("pHello()")
}
btn1 = new qpushbutton(win1) {
setGeometry(150,200,100,30)
settext("Close")
setclickevent("pClose()")
}
lineedit1 = new qlineedit(win1) {
setGeometry(10,100,350,30)
settextchangedevent("pChange()")
setreturnpressedevent("penter()")
}
57.28. QLineEdit Events and QMessageBox 628

7. Ring Documentation, Release 1.6
show()
}
exec()
}
Func pHello
lineedit1.settext( "Hello " + lineedit1.text())
Func pClose
MyApp.quit()
Func pChange
win1 { setwindowtitle( lineedit1.text() ) }
Func pEnter
new qmessagebox(win1) {
setwindowtitle("Thanks")
settext("Hi " + lineedit1.text() )
setstylesheet("background-color : white")
show()
}
The application during the runtime
57.28. QLineEdit Events and QMessageBox 629

8. Ring Documentation, Release 1.6
57.29 Other Widgets Events
Each Qt signal can be used in RingQt, just add Set before the signal name and add event after the signal name to get
the method that can be used to determine the event code.
For example the QProgressBar class contains a signal named valueChanged() To use it just use the function setVal-
ueChangedEvent()
Example:
Load "guilib.ring"
New qApp {
win1 = new qMainWindow() {
setwindowtitle("QProgressBar valueChanged Event")
progress1 = new qprogressbar(win1) {
setGeometry(100,100,350,30)
setvalue(10)
setvaluechangedevent("pChange()")
}
new qpushbutton(win1) {
setGeometry(10,10,100,30)
settext("increase")
setclickevent("pIncrease()")
}
showMaximized()
}
57.29. Other Widgets Events 630

9. Ring Documentation, Release 1.6
exec()
}
func pIncrease
progress1 { setvalue(value()+1) }
func pchange
win1.setwindowtitle("value : " + progress1.value() )
The application during the runtime
Another example for the stateChanged event of the QCheckBox class
Load "guilib.ring"
New qApp {
win1 = new qMainWindow() {
setwindowtitle("QCheckBox")
new qcheckbox(win1) {
setGeometry(100,100,100,30)
settext("New Customer!")
setstatechangedevent("pchange()")
}
showMaximized()
}
exec()
}
Func pChange
new qMessageBox(Win1) {
setWindowTitle("Checkbox")
settext("State Changed!")
show()
}
The application during the runtime
57.29. Other Widgets Events 631

10. Ring Documentation, Release 1.6
57.30 Using the QTimer Class
In this example we will learn about using the QTimer class
Load "guilib.ring"
new qApp {
win1 = new qwidget() {
setgeometry(100,100,200,70)
setwindowtitle("Timer")
label1 = new qlabel(win1) {
setgeometry(10,10,200,30)
settext(thetime())
}
new qtimer(win1) {
setinterval(1000)
settimeoutevent("pTime()")
start()
}
show()
}
exec()
}
func ptime
label1.settext(thetime())
Func thetime
return "Time : " + Time()
The application during the runtime
57.30. Using the QTimer Class 632