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

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() {
setvideooutput(videowidget2)
}
setposition(14.22*60*1000)
}
setmedia(new qurl("4.avi"))
}
showfullscreen()
}
exec()
}
The application during the runtime
57.24. QVideoWidget and QMediaPlayer 623

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()
}
57.25. Using QFrame 624

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 {
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

showMaximized()
}
exec()
}
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

setwindowtitle("Menubar")
menu1 = new qmenubar(win1) {
sub1 = addmenu("File")
sub1 {
oAction = new qAction(win1) {
settext("New")
setenabled(false)
}
addaction(oAction)
settext("Open")
setcheckable(true)
setchecked(true)
setstatustip("open new file")
}
addaction(oAction)
settext("Save")
}
addaction(oAction)
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()
}
57.27. Menubar and StyleSheet Example 627

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) {
settext("Say Hello")
setclickevent("pHello()")
}
btn1 = new qpushbutton(win1) {
settext("Close")
setclickevent("pClose()")
}
lineedit1 = new qlineedit(win1) {
settextchangedevent("pChange()")
setreturnpressedevent("penter()")
}
57.28. QLineEdit Events and QMessageBox 628

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()
}
57.28. QLineEdit Events and QMessageBox 629

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 {
setwindowtitle("QProgressBar valueChanged Event")
progress1 = new qprogressbar(win1) {
setvalue(10)
setvaluechangedevent("pChange()")
}
new qpushbutton(win1) {
settext("increase")
setclickevent("pIncrease()")
}
showMaximized()
}
57.29. Other Widgets Events 630

exec()
}
func pIncrease
progress1 { setvalue(value()+1) }
func pchange
win1.setwindowtitle("value : " + progress1.value() )
Another example for the stateChanged event of the QCheckBox class
Load "guilib.ring"
New qApp {
setwindowtitle("QCheckBox")
new qcheckbox(win1) {
settext("New Customer!")
setstatechangedevent("pchange()")
}
showMaximized()
}
exec()
}
Func pChange
new qMessageBox(Win1) {
setWindowTitle("Checkbox")
settext("State Changed!")
show()
}
57.29. Other Widgets Events 631

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()
57.30. Using the QTimer Class 632

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

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