I have a GUI ive created in Scala. Its very simple but I would like to modify the DSLOutput object from outside of DSLGUI. Does anyone know how I can call DSLOutput.append() from outside of the DSLGUI? Ive tried importing DSLGUI but I cant seems to figure out how to access DSLOutput.
package api
import swing._
import event._
object DSLGUI extends SimpleSwingApplication{
def top = new MainFrame{
title = "Computer Repair Advisory System"
object Commands extends TextField(columns = 50)
object DSLOutput extends TextArea(rows = 15, columns = 50)
object SendCommand extends Button("Send")
val CommandPanel = new FlowPanel{
contents += Commands
contents += SendCommand
}
contents = new BoxPanel(Orientation.Vertical){
contents +=CommandPanel
contents += DSLOutput
}
listenTo(SendCommand)
reactions += {
case ButtonClicked(SendCommand) =>
DSLOutput append "Test "
}
}
}
You would have to declare it in the scope of DSLGUI, rather than as a local object within your top method. Then you can access it with DSLGUI.DSLOutput.
i.e.
object DSLGUI extends SimpleSwingApplication {
object DSLOutput extends TextArea(rows = 15, columns = 50)
def top = new MainFrame {
...
}
}
Related
It's possible to reset a table scala swing or remove it from the container after clicking on a button ?
I've tried to create a val with that table but I have always a new table stacked under the old
Here is the code :
// here is the most crucial part when the user click on the button, it will append a new table but if we want to start again, it will append bottom of the old one and I want here a kind of reset or removing of table
contents = new BoxPanel(Orientation.Vertical) {
contents += new Label("Hello, you're welcome")
contents += Button("Query") {
val query: ScrollPane = new ScrollPane(changeCountry())
contents -= query
Try {
contents += query
}.getOrElse(Dialog.showMessage(contents.head, "Incorrect input ! This seems that input isn't in that list, write a different code or country"))
}
// this part will ask to the user to write text to the input to display the table in function of the parameter of my function
def changeCountry(): Table = {
val text = Dialog.showInput(parent = contents.head, message = "Write a code of a country or a country", initial = "test")
text match {
case Some(s) => airportRunwayByCountry(s)
}
}
// this below part creates the table
def airportRunwayByCountry(code : String): Table = {
val headers = Seq("Airport","Runway linked")
val rowData = Functions.findAirportAndRunwayByCountry(code).map(x => x.productIterator.toArray).toArray
val tableAirportRunway = new Table(rowData,headers)
tableAirportRunway}
}
Solved with method "remove" of containers
Here is the code :
Try {
if(contents.length == 3 \\ number of items in my Box) {
\\ at this moment, only add the table because none other table exists
contents += new ScrollPane(changeCountry())
}
else {
contents -= contents.remove(3) \\get the id of the old table and remove it at this position
contents += new ScrollPane(changeCountry()) \\ at this moment, this content will have the id n°2, and the loop can start over without errors
}
I am currently working on a project that involves graphing text file data into a pyqt graph and I have been running into problems with a subclass QDialog box. My goal is to have the QDialog box use a combox to choose between different data sets to graph (The code below shows the "steering angle" setting being chosen). The problem lies with how to make it so that when the Create Graph button is pressed (Found in the QDialog Class), it runs the createGraph(self): function in the main class. I dont know how to work classes that well so I dont know how to make this work.
If anyone has any pointers on either how to get this working, how to properly structure a PYQT Program or how to make it more efficient, I'm all ears.
Thank you for your time!
Main Window Code:
class MainWidget(QMainWindow):
def __init__(self, parent=None):
super(MainWidget, self).__init__(parent)
self.activateWindow()
self.raise_()
self.setupGraph()
self.dockcheck = 0
self.graphcheck = 0
self.setWindowTitle("Drag and Drop Test")
self.resize(1200, 800)
self.setAcceptDrops(True)
self.LBLDragAndDrop = QLabel("Drag And Drop Files Here")
self.LBLDragAndDrop.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter)
if self.graphcheck == 0:
self.setCentralWidget(self.LBLDragAndDrop)
self.path3 = "C:\\Users\\steph\\OneDrive\\Documents\\SAA Wing\\Coding\\Can Bus Data Reading\\Temporary Saves"
self.treeview = QTreeView()
self.treeview.setAnimated(True)
self.fileModel = QFileSystemModel()
self.fileModel.setRootPath(self.path3)
self.indexRoot = self.fileModel.index(self.fileModel.rootPath())
self.treeview.setModel(self.fileModel)
self.treeview.setRootIndex(self.fileModel.index(self.path3))
self.treeview.setColumnWidth(0, 250)
self.treeview.doubleClicked.connect(self.onSelectionChanged)
#self.treeview.doubleClicked.connect(self.openDialog)
####################################################################################################################
# Dialog Box
####################################################################################################################
def onSelectionChanged(self, index):
self.selectionPath = self.sender().model().filePath(index)
self.selectionFilename = (self.selectionPath.split("/")[-1])
IDList = ("ID 00d0","ID 00d1","ID 00d3","ID 00d4","ID 0140","ID 0141","ID 0360","ID 0361")
if self.selectionFilename in IDList:
if self.selectionFilename == "ID 00d0":
editDialog = Dialog00d0()
editDialog.exec_()
####################################################################################################################
# Graphing data
####################################################################################################################
def createGraph(self):
self.graphcheck = 1
if self.graphcheck == 1:
self.setCentralWidget(self.scroll_area)
################################################################################################################
# ID 00D0 Creating Graph
################################################################################################################
if self.selectionFilename == "ID 00d0":
self.df00d0 = pd.read_table(self.selectionPath, header=None , delim_whitespace=True, dtype=object)
self.df00d0.columns = ['Timestamp','ID',"B0","B1","B2","B3","B4","B5","B6","B7"]
self.df00d0.dropna(inplace=True)
self.SA = np.array([], dtype=float)
self.LatAcc = np.array([], dtype=float)
self.LonAcc = np.array([], dtype=float)
self.ComAcc = np.array([], dtype=float)
self.Time00d0 = np.array([], dtype=float)
self.Timestamp00d0 = np.array([], dtype=float)
############################################################################################################
# Getting Time Stamps
############################################################################################################
for item in self.df00d0['Timestamp']:
self.Time00d0 = np.append(self.Time00d0, datetime.fromtimestamp(float(item)).strftime("%H:%M:%S.%f")[:-4])
self.Timestamp00d0 = np.append(self.Timestamp00d0, float(item))
############################################################################################################
# Steering Angle Graph
############################################################################################################
if self.combobox00d0.currentText() == "Steering Angle":
SA_ = (((self.df00d0['B1']) + (self.df00d0['B0'])).apply(int, base=16) * 0.1)
for item in SA_:
if item > 6000:
self.SA = np.append(self.SA, round((item - 6553.6), 1))
else:
self.SA = np.append(self.SA, round(item))
y_value = self.SA
Here is the QDialog Box class code:
class Dialog00d0(QDialog):
def __init__(self):
super().__init__()
self.layout = QVBoxLayout()
hlay = QHBoxLayout()
self.setLayout(self.layout)
self.setWindowTitle("Create Graph")
label = QLabel("Data Type")
self.combobox00d0 = QComboBox()
self.combobox00d0.addItem("Steering Angle")
self.combobox00d0.addItem("Latitudinal Acceleration")
self.combobox00d0.addItem("Longitudinal Acceleration")
self.combobox00d0.addItem("Combined Acceleration")
self.BTNCreateGraph = QPushButton("Create Graph")
self.BTNCancel = QPushButton("Cancel")
hlay.addWidget(self.BTNCreateGraph)
hlay.addWidget(self.BTNCancel)
self.layout.addWidget(label)
self.layout.addWidget(self.combobox00d0)
self.layout.addLayout(hlay)
self.BTNCreateGraph.clicked.connect("I need the self.creatGraph here")
self.BTNCancel.clicked.connect("self.close")
I imagine this will help you.
The pyqtSignal() argument tells you what information you want to carry.
In this case, I'm passing a text.
Good luck, I hope I helped.
import sys
from PyQt5.QtWidgets import QMainWindow, QDialog, QApplication
from PyQt5.QtWidgets import QPushButton, QVBoxLayout
from PyQt5 import QtCore, QtGui
class MainWidget(QMainWindow):
def __init__(self, parent=None):
super(MainWidget, self).__init__(parent)
button = QPushButton("Button to open dialog")
button.clicked.connect(self.button_clicked)
self.setCentralWidget(button)
self.show()
def button_clicked(self):
dlg = Dialog00d0()
dlg.signEmit.connect(self.createGraph)
dlg.exec()
def createGraph(self, _str):
print('Now Im here')
print(_str)
class Dialog00d0(QDialog):
signEmit = QtCore.pyqtSignal(str)
def __init__(self):
super().__init__()
self.layout = QVBoxLayout()
self.BTNCreateGraph = QPushButton("link to createGraph()")
self.layout.addWidget(self.BTNCreateGraph)
self.setLayout(self.layout)
self.BTNCreateGraph.clicked.connect(self.BTNCreateGraph_clicked)
def BTNCreateGraph_clicked(self):
self.signEmit.emit('But I passed by')
app = QApplication(sys.argv)
win = MainWidget()
app.exec()
I'm trying to use a function which a placed inside the class of Tkinder but the function(aktodec) can't be found and a get an error. I don't wanna call the def as a command of a button but as a function that will give value to one of my variables
from Tkinter import *
class ADialog:
def __init__(self, parent):
top = self.top = Toplevel(parent)
Label(top, text="Number to convert").pack()
self.numb = Entry(top)
self.numb.pack(padx=15)
Label(top, text="Base of incered number").pack()
self.base = Entry(top)
self.base.pack(padx=15)
Label(top, text="Base you want to be converted").pack()
self.basemet=Entry(top)
self.basemet.pack(padx=15)
b = Button(top, text="OK", command=self.met)
b.pack(pady=5)
def aktodec(self,num,base): #####commands
dec=0
num=num[::-1]
num1=[]
for i in range(len(num)):
num1.append(num[i])
if base>9:
for i in range(len(num1)):
if str(num1[i])=='A':
num1.remove(num1[i])
num1.insert(i,'10')
if str(num1[i])=='B':
num1.remove(num1[i])
num1.insert(i,'11')
if str(num1[i])=='C':
num1.remove(num1[i])
num1.insert(i,'12')
if str(num1[i])=='D':
num1.remove(num1[i])
num1.insert(i,'13')
if str(num1[i])=='E':
num1.remove(num1[i])
num1.insert(i,'14')
if str(num1[i])=='F':
num1.remove(num1[i])
num1.insert(i,'15')
for i in range(len(num)):
s=int(num1[i])*(int(base)**i)
dec=dec+s
else:
for i in range(len(num1)):
s=int(num1[i])*(int(base)**i)
dec=dec+s
return dec
def met(self):
num=self.numb=str(self.numb.get())
base=self.base =int(self.base.get())
basemet=self.basemet=int(self.basemet.get())
if base==basemet:
Label(root,text="The number "+self.numb+"is converted to"+self.numb) ##why can't be print??
if base==10:
new=num
else:
new1=self.aktodec(num,base) ####why aktodec doesn't give value to "new"??
Label(root,text="Number is"+str(new))
self.top.destroy()
root = Tk()
def open_dialog():
dial = ADialog(root)
root.wait_window(dial.top)
root.wm_geometry("400x300+20+40")
message=StringVar()
message.set("Complete the form")
Label(root, textvariable=message).pack(padx=30)
root.update()
message.set("Form completed")
Button(root, text="Done", command=root.destroy).pack()
Button(root, text="new", command=open_dialog).pack()
root.update()
root.mainloop()
And also I have a problem whith the label
Label(root,text="The number "+self.numb+"is converted to"+self.numb
which (i don't know why) won't appear to the root even the base=basemet.
Help please!
I am trying to do a simple case of /author/ and get the Lift to build a Person object based on the id passed in.
Currently i have an Author snippet
class Author(item: Person) {
def render = {
val s = item match { case Full(item) => "Name"; case _ => "not found" }
" *" #> s;
}
}
object Author{
val menu = Menu.param[Person]("Author", "Author", authorId => findPersonById(authorId), person => getIdForPerson(person)) / "author"
def findPersonById(id:String) : Box[Person] = {
//if(id == "bob"){
val p = new Person()
p.name="Bobby"
p.age = 32
println("findPersonById() id = " +id)
Full(p)
//}else{
//return Empty
//}
}
def getIdForPerson(person:Person) : String = {
return "1234"
}
}
What i am attempting to do is get the code to build a boxed person object and pass it in to the Author class's constructor. In the render method i want determine if the box is full or not and proceed as appropriate.
If i change
class Author(item: Person) {
to
class Author(item: Box[Person]) {
It no longer works but if i leave it as is it is no longer valid as Full(item) is incorrect. If i remove the val s line it works (and replace the s with item.name). So how do i do this. Thanks
The Box returned from findPersonById(id:String) : Box[Person] is evaluated and if the Box is Full, the unboxed value is passed into your function. If the Box is Empty or Failure the application will present a 404 or appropriate error page instead.
You can try double boxing your return if you want to handle this error checking yourself (so that the result of this method is always a Full Box).
def findPersonById(id:String) : Box[Box[Person]] = {
if(id == "bob"){
val p = new Person()
p.name="Bobby"
p.age = 32
println("findPersonById() id = " +id)
Full(Full(p))
}else{
return Full(Empty)
}
}
and then this should work:
class Author(item: Box[Person])
I want my MainFrame to catch key events. I didn't find any key publisher already in it, so I'm going to write my own ... I have something like this:
class ImageView(image: ImageIcon, parent: UIElement = null) extends MainFrame {
object keys extends Publisher {
peer.addKeyListener(new KeyListener {
def keyPressed(e: java.awt.event.KeyEvent) {
publish(new KeyPressed(e))
}
def keyReleased(e: java.awt.event.KeyEvent) {
publish(new KeyReleased(e))
}
def keyTyped(e: java.awt.event.KeyEvent) {
publish(new KeyTyped(e))
}
})
}
listenTo(keys)
reactions += {
case KeyPressed(_, key,_,_) =>
if (key == Key.Escape) dispose
}
}
Anyway when I press any key, I get this exception:
Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: scala.swing.Frame$$anon$1 cannot be cast to javax.swing.JComponent
at scala.swing.event.KeyPressed.<init>(KeyEvent.scala:33)
at pip.gui.ImageView$keys$$anon$2.keyPressed(ImageView.scala:35)
at java.awt.Component.processKeyEvent(Component.java:6225)
at java.awt.Component.processEvent(Component.java:6044)
at java.awt.Container.processEvent(Container.java:2041)
at java.awt.Window.processEvent(Window.java:1836)
at java.awt.Component.dispatchEventImpl(Component.java:4630)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Window.dispatchEventImpl(Window.java:2478)
at java.awt.Component.dispatchEvent(Component.java:4460)
at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1850)
at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:712)
at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:990)
at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:855)
at
.
.
.
.
(continues long further)
I brought up this publisher code from Component.keys, so what is actually wrong here?
Thanks in advance,
Tony
This seems bad design in the library. Looking into KeyEvent.scala, there's all kinds of casting to JComponent going on, and JFrame is a subclass of java.awt.Component but not JComponent, so it should be impossible to call listenTo(keys).
What you want is to listen to the top-most component in the frame's contents. For instance:
import scala.swing._; import event._
import javax.swing._
class ImageView(image: ImageIcon, parent: UIElement = null) extends MainFrame {
val b = new BorderPanel {
listenTo( keys )
reactions += {
case KeyPressed(_, key,_,_) =>
println( "PRESSED : " + key )
if (key == Key.Escape) dispose
}
}
contents = b
}
val w = new ImageView( null )
w.peer.setSize( 200, 200 )
w.visible = true
w.b.requestFocus
the requestFocus is essential because the panel doesn't request the focus by itself even if you click on it, so otherwise it wouldn't receive key events.