I recently installed the latest version of Scala IDE from the link provided on its website for Eclipse, and imported scalafx version 2.22 jar and then installed SBT (the latest version). Then I was trying out the following code from scalafx.org :
import scalafx.Includes._
import scalafx.application.JFXApp
import scalafx.scene.Scene
import scalafx.scene.paint.Color
import scalafx.scene.shape.Rectangle
object HelloStageDemo extends JFXApp {
stage = new JFXApp.PrimaryStage {
title.value = "Hello Stage"
width = 600
height = 450
scene = new Scene {
fill = Color.LightGreen
content = new Rectangle {
x = 25
y = 40
width = 100
height = 100
fill <== when (hover) choose Color.Green otherwise Color.Red
}
}
}
}
However, I wasn't able to run as I got built errors of the following :
error while loading AccessibleAction,invalid distance too far back
error while loading CycleMethod,invalid LOC header(bad signature)
error while loading JobSettings,invalid LOC header(bad signature)
HelloStageDemo's tests not built due to errors in dependent scope(s) main
The error can be rid by not importing the Includes object (import scalafx.Includes._ )
I tried to google search the problem, but I couldn't find any explanation about it.. And so I tried this code on another machine without SBT installed, and it works there even when including the import.scalafx.Includes._ line..
Both of the machines uses JVM version 8..
So is this problem related to my SBT installed on my machine, or is it other type of problem? Also what do the errors mean?
Thanks in advance
Related
I am trying to convert a simple program that uses "Presentation" (from reportgen package) to a .exe.
The code is as follows:
makePPTCompilable();
import mlreportgen.ppt.*
slides = Presentation('mySlideAddPresentation.pptx');
slide1 = add(slides,'Title and Picture');
plane = Picture(which('tulips.jpg'));
plane.X = '4in';
plane.Y = '4in';
plane.Width = '5in';
plane.Height = '2in';
add(slide1,plane);
close(slides);
I get the following error on running the complied version:
" Undefined function 'Presentation' for input arguments of type 'char'"
Any idea what I am missing here?I am on 2015b, used the following link for help: https://www.mathworks.com/help/rptgen/ug/compile-a-presentation-program.html
You need to make the reportgen compilable, see here and here
In my code I put:
if ismcc || isdeployed
% Make sure DOM is compilable
makeDOMCompilable()
end
Then it compiles fine! :)
I searched high and low for this issue and, while I found reports of the same error ubiquitously, I didn't find this specific error and can't seem to resolve it. I'm just now learning Dart and am following the Angular-Dart tutorial, and I keep getting this error early on, with no explanation that I can find. This is my badge_controller file:
library s1_basics.badge_controller;
import 'package:angular/angular.dart';
#NgController(
selector: '[badge-controller]',
publishAs: 'ctrl'
)
class BadgeController {
static const DEFAULT_NAME = 'Anne Bonney';
static const LABEL1 = 'Arrr! Write yer name!';
static const LABEL2 = 'Aye! Gimme a name!';
String name = '';
bool get inputIsNotEmpty => name.trim().isNotEmpty;
String get label => inputIsNotEmpty ? LABEL1 : LABEL2;
generateName() {
name = DEFAULT_NAME;
}
}
And this is my pirate_module file:
library s1_basics.pirate_module;
import 'package:angular/angular.dart';
import 'package:s1_basics/badge_controller.dart';
class PirateModule extends Module {
PirateModule() {
type(BadgeController);
}
}
I'm so early on in this tutorial that I don't think there's much else that I can show to debug this, but if anyone has an idea, I'd greatly appreciate it. Cheers!
Changing the import paths to be relative references for the imported files seems to fix it; i.e. initially this gave errors:
import 'package:s1_basics/pirate_module.dart';
but after changing it to
import '../lib/pirate_module.dart';
it worked...so that's the fix (for this) if anyone out there has issues.
I would like to deploy some scala code, to be used very similar to sbt console
(command line interface, history, etc)
and would like to
customize it
and made it simple to deploy.
Can sbt console be used with these changes:
Removed startup info messages
Removed scala welcome message
Customized command prompt instead of "scala>" to be "myApp>"
No access to local nor global ivy/maven repositories (all jars
available, including sbt jars and dependencies)
Anybody passed this path ?
I have tried
Using sbt to build command line application
but with no much progress so far
(I guessed it was intented to very similar situation)
Are there ready made plugin available ?
Any other tool related or unrelated to sbt ?
Thank you
Actully, no need for sbt. To have it tweaked, scala code should be changed.
For the sbt "Customized command prompt" part, you have a good example with "sbt: Customize the Shell prompt in sbt" from Patrick Bailey (patmandenver).
create the ~/.sbt/0.13/global.sbt file:
vi ~/.sbt/0.13/global.sbt
And place the following in it.
shellPrompt := { state =>
def textColor(color: Int) = { s"\033[38;5;${color}m" }
def backgroundColor(color:Int) = { s"\033[48;5;${color}m" }
def reset = { s"\033[0m" }
def formatText(str: String)(txtColor: Int, backColor: Int) = {
s"${textColor(txtColor)}${backgroundColor(backColor)}${str}${reset}"
}
val red = 1
val green = 2
val yellow = 11
val white = 15
val black = 16
val orange = 166
formatText(s"[${name.value}]")(white, orange) +
"\n " +
formatText("\u276f")(green, black) +
formatText("\u276f")(yellow, black) +
formatText("\u276f ")(red, black)
}
Run reload in sbt and….
That can be amended/enhanced/completed to add other information you would need in your case.
I'm using Python 2.6.6 and pyglet 1.1.4. In my "Erosion" folder, I have "Erosion.py" and a folder named "Images." Inside images, there are .png images. One image is named "Guard.png."
In "Erosion.py" there is a segment that goes like so:
pyglet.resource.path = ['Images']
pyglet.resource.reindex()
self.image = pyglet.resource.image('%s%s' % (character, '.png'))
When I run this, I am given
File "C:\Python26\lib\site-packages\pyglet\resource.py", line 394, in file raise ResourceNotFoundException(name)
ResourceNotFoundException: Resource "Guard.png" was not found on the path. Ensure that the filename has the correct captialisation.
I have tried changing the path to ['./Images'] and ['../Images']. I've also tried removing the path and the reindex call and putting Erosion.py and Guard.png in the same folder.
This is what i do to be able to load resources:
pyglet.resource.path = ['C:\\Users\\myname\\Downloads\\temp']
pyglet.resource.reindex()
pic = pyglet.resource.image('1.jpg')
texture = pic.get_texture()
gl.glTexParameteri(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MAG_FILTER, gl.GL_NEAREST)
texture.width = 960
texture.height = 720
texture.blit(0, 0, 0)
try this
pyglet.image.load('path/to/image.png')
If the relative path is not working you can try with the absolute path using the os module.
import pyglet
import os
working_dir = os.path.dirname(os.path.realpath(__file__))
pyglet.resource.path = [os.path.join(working_dir,'Images')]
pyglet.resource.reindex()
image = pyglet.resource.image('character.png'))
It's better to use the os.path.join method instead of writing it as a string for a better cross-platform support.
I get a problem like this using pyglet and pyscripter.(the text editor) In order for the file to be found I have to restart the editor before running the program.
This might be a problem with pyscripter however.
It is worth looking into: http://pyglet.readthedocs.io/en/pyglet-1.3-maintenance/programming_guide/resources.html
You should include all the directories into:
pyglet.resource.path = [...]
Then pass the ONLY the file name when you call:
pyglet.resource.image("ball_color.jpeg")
Try:
import os
import pyglet
working_dir = os.path.dirname(os.path.realpath(__file__))
image_dir = os.path.join(working_dir, 'images')
sound_dir = os.path.join(working_dir, 'sound')
print working_dir
print "Images are in: " + image_dir
print "Sounds are in: " + sound_dir
pyglet.resource.path = [working_dir, image_dir, sound_dir]
pyglet.resource.reindex()
try:
window = pyglet.window.Window()
image = pyglet.resource.image("ball_color.jpeg")
#window.event
def on_draw():
window.clear()
image.blit(0, 0)
pyglet.app.run()
finally:
window.close()
The use of try and finally are not necessary, but they are recommended. You might end up with a lot of open windows and pyglet back processes if you don't close the window when there are errors.
pyglet 1.4.4 format: HUD_img = pyglet.resource.image('ui\ui_gray_block_filled.png')
pyglet 1.4.8 format: HUD_img = pyglet.resource.image('ui/ui_gray_block_filled.png')
I was using pyglet 1.4.4 and was able to use this the first format.
After upgrading to pyglet 1.4.8 I had the error: pyglet.resource.ResourceNotFoundException: Resource "your_resource_path" was not found on the path.
Switching to the 2nd format with forward slashes solved this issue for me. Not sure why this change was made...I'm sure there was a good reason for it.
Hey, I've been playing around with Jython a bit and I wrote the following test program:
from javax.swing import *
from java.awt import *
from java.awt.event import ActionListener
class JythonTest(JFrame):
_windowTitle = ""
def __init__(self):
self.initVars()
self.initLookAndFeel()
self.initComponents()
self.initGui()
def initVars(self):
self._windowTitle = "Jython Test"
JFrame.__init__(self, self._windowTitle)
def initLookAndFeel(self):
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName())
def initComponents(self):
label = JLabel("Hello World!", JLabel.CENTER)
label.setFont(Font("Arial", Font.BOLD, 30))
tabs = JTabbedPane()
tabs.addTab("Test", label)
tabs.addTab("Calculator", self.CalculatorPane())
self.add(tabs)
def initGui(self):
self.setSize(400,200)
self.setDefaultCloseOperation(self.EXIT_ON_CLOSE)
self.setVisible(1)
class CalculatorPane(JPanel, ActionListener):
_txt1 = 0
_txt2 = 0
_box = 0
def __init__(self):
self.initVars()
self.initComponents()
def initVars(self):
pass
def initComponents(self):
self._txt1 = JTextField(5)
self._box = JComboBox(["+", "-", "*", "/"])
self._txt2 = JTextField(5)
btn = JButton("Go")
btn.addActionListener(self)
self.add(self._txt1)
self.add(self._box)
self.add(self._txt2)
self.add(btn)
def actionPerformed(self, ev):
val1 = self._txt1.getText()
val2 = self._txt2.getText()
operation = self._box.getSelectedItem()
val1 = int(val1)
val2 = int(val2)
if operation == "+":
answer = val1+val2
elif operation == "-":
answer = val1-val2
elif operation == "*":
answer = val1*val2
elif operation == "/":
answer = val1/val2
JOptionPane.showMessageDialog(self, "The answer is: " + str(answer))
if __name__ == "__main__":
win = JythonTest()
Here's my system info:
Operating System: Ubuntun 10.10
Netbeans Version: 6.9
My problem is that I can't compile the above code. It runs just fine when I click the run button, however, when I hit build or clean & build then I don't get any results. The build process runs in the bottom right corner for about half a second and then finishes. The output box opens up but it's entirely empty, even after the process ends. When I look at my project folder, nothing changes. Only two folders exist, nbproject and src. There probably should be a dist folder with a jar inside of it. Here's what's in the file structure:
user#computer: ~/NetBeansProjects/pythontest$ ls
nbproject src
user#computer: ~/NetBeansProjects/pythontest$ ls nbproject
private project.properties project.xml
user#computer: ~/NetBeansProjects/pythontest$ ls nbproject/private
private.xml
user#computer: ~/NetBeansProjects/pythontest$ ls src
pythontest.py setup.py
All I did to set up was install netbeans from the debian package (quite a while ago) and set up python/jython through the NetBeans python plugin. Any idea what's wrong?
The short answer is that it doesn't really work like that; I'm not aware of any IDE or tool support for packaging jython programs.
Usually what I do is just make a shell script that says:
java -cp "the/classpath/;" org.python.util.jython myscript.py
I've found that is the most foolproof way to run a jython program, and has saved me many headaches from not-working .jar files during development.
That said, there are methods of packaging jython programs in standalone .jar files, if that's what you want.
The best resource that I've found is the Distributing Jython Scripts page in the Jython FAQ, which describes a few different techniques for distributing jython scripts.
I usually only use the methods described there when "publishing" a program.