Scilab: How to use cbmenu in xclick() - scilab

I do not understand the explanation of the output argument cbmenu in the Scilab documentation of xclick.
It says:
cbmenu: String: callback associated to a menu if xclick returns due to a click on a menu.
I did not find any example in the web so I ask here. I have coded a snippet which lumps together the elements which may be relevant for cbmenu. The snippet does nothing, when I click on CLICK. Could anyone alter/complement/revise the code so that it does something - whatever it is to give me a clue what could be done with cbmenu?
xdel()
x=[-1 +1];
cf=figure(0);
plot(x,x)
m=uimenu(cf,'label','CLICK','callback','two=1+1');
[ibutton,xcoord,yxcoord,iwin,cbmenu]=xclick();
Kind regards
Rosestock

This is a minimal script which explains what the 5th output argument of xclick() can do:
xdel()
x=[-1 +1];
winnum=1; win=string(winnum);
cf=figure(winnum);
plot(x,x)
C=["Green" "Red" "Abort"];//case name strings
addmenu(winnum, C(1)); C1="execstr("+C(1)+"_"+win+"(1))";
addmenu(winnum, C(2)); C2="execstr("+C(2)+"_"+win+"(1))";
addmenu(winnum, C(3)); C3="execstr("+C(3)+"_"+win+"(1))";
while %t
[!,!,!,!,cbmenu]=xclick();
//Get the clicked option by cbmenu
if cbmenu==C1, cf.background=3; end
if cbmenu==C2, cf.background=5; end
if cbmenu==C3, break, end
end

If I get your intentions right, you want to create a custom menu. Here is a small demo, how to bulid custom menu elements, and also how to use locate to get back coordinates (but you don't need xclick to sense menu clicking). This code does not use explicitly cbmenu, but it is not necessary to get it work. If you run the code, first click the "Select range" menu, then click two times on the graph. Then the "Regression" menu is activated, and you can choose "Linear regession". By clicking "Exit program", the execution aborts. Not all nenu functions are implemented, they are there only to demonstrate a multilayer structure. I hope it helps!
//Interactive menu demo
// Scilab 5.5.2
// 2016.12.20. Attila Eredics
//
//Attention!
//Do not close the graphic window with the original x symbol
// while the program is running,
// because the program will run infinitely!
// But you can stop it in the Consol with: Ctrl+C and then typing: abort
clc;
clear;
lines(0);
//artificial data vectors
row = 100;
t=gsort(rand(row,1),'r','i'); //time
c=10*t+8; //concentration
c=c+rand(c); //add some noise
//graphic window
scf(0); clf(0);
w=gcf(); //get current figure
//new menu elements
m3=uimenu(w,"Label","Select range","Callback","m=3");
m4=uimenu(w,"Label","Regression","Enable","off","ForegroundColor","0.5|0.5|0.5");
m41=uimenu(m4,"Label","Linear","Callback","m=41","Enable","on");
m42=uimenu(m4,"Label","Nonlinear","Callback","m=42","Enable","on");
m5=uimenu(w,"Label","Save results","Callback","m=5");
m6=uimenu(w,"Label","Exit program","Callback","abort","ForegroundColor","1|0|0");
plot2d(t,c,style=-5,frameflag=6); //plot the data
xtitle("","time","concentration"); //axis labels
while %T //infinite loop
//-------------wait for user action (click on a menu)-------
m=0;
while m<1
xpause(1e4); //pause 10ms
end
//------------------the menu actions-------------------------
if m==3 then //Select range
mprintf("\nChoose 2 points (click on the graph)!");
coord=locate(2); //locate two clicks
disp(coord); //coord: according to the axes
//Select range in t vector
for i=1:row-1
if coord(1,1)>=t(i) & coord(1,1)<t(i+1) then //t(i) <= 1st click < t(i+1)
i1=i;
end
if coord(1,2)>=t(i) & coord(1,2)<t(i+1) then //t(i) <= 2nd click < t(i+1)
i2=i;
end
end
//selected range
clear tt;
clear cc;
tt=t(i1:i2);
cc=c(i1:i2);
plot2d(tt,cc,style=-5); //plot selected points
h2=gce();
h2.children.mark_foreground=3; //green
m4.Enable="on"; //enable Regression menu
m4.ForegroundColor="0|0|0"
m3.Enable="off"; //Disable selection menu
m3.ForegroundColor="0.5|0.5|0.5"
elseif m==41 then //linear regression of the selected points
mprintf("\nLinear regression");
[a,b,sig]=reglin(tt',cc');
plot2d([tt(1),tt($)],a*[tt(1),tt($)]+b,style=2); //blue line
m41.Enable="off"; //disable Linear regression menu
m41.ForegroundColor="0.5|0.5|0.5"
elseif m==42 then //Nonlinear regression
mprintf("\nNot implemented yet!");
elseif m==5 then //Save
mprintf("\nNot implemented yet!");
end
end

Related

How to remove ComboBox selection using button (Julia Gtk)?

I am trying to do a simple GUI using Gtk with the Julia programming language, however, when I try to get the button to remove the active selection in the combobox programmatically, I get an "AssertionError".
"ERROR: AssertionError: xor(prev, current_task() !== g_stack)"
I am not sure how to get this simple example to work ?
Can anyone point me in the right direction ?
Here is my non-functional code:
using Gtk
# Create widgets------------------------------------
cb = GtkComboBoxText()
button = GtkButton("Remove Active")
# Create and Add choices to ComboBox ---------------
choices = ["zero", "one", "two", "three", "four"]
for choice in choices
push!(cb,choice)
end
# Function to get the selected choice (text) from the ComboBox
function getChoice()
i = get_gtk_property(cb, "active", Int)
return choices[i+1]
end
# Function that handles the ComboBox selection change---
function selection_changed(widget)
sel = getChoice()
println("We selected: $sel")
end
# Function to handle the button press------------------
function removeChoice(widget)
set_gtk_property!(cb,:active,-1)
end
# Connect the signals to the widgets -------------------
signal_connect(selection_changed, cb, "changed")
signal_connect(removeChoice, button, "clicked")
# Create window, and add widgets to it using Box Layout
win = GtkWindow("ComboBoxText Example",200,50)
vbox = GtkBox(:v)
push!(win, vbox)
push!(vbox, cb)
push!(vbox, button)
showall(win)
Note the warning at the end of this Gtk.jl manual page:
Warning: it is essential to avoid task switching inside Gtk callbacks, as this corrupts the Gtk C-stack. For example, use #async print or queue a message for yourself. ...
if you are still seeing segfaults in some random method due to there existing a callback that recursively calls the glib main loop (such as making a dialog box) or otherwise causes g_yield to be called, wrap the faulting code in GLib.#sigatom. This will postpone execution of that code block until it can be run on the proper stack (but will otherwise acts like normal control flow).
This is what happens here, when you try to change the selection status of the combo box from with a signal-handler callback - the "callback that recursively calls the glib main loop" as the manual page calls it.
Using either #async or Gtk.GLib.#sigatom in front of the set_gtk_property! call avoids this problem and allows the code to run.
In this case, that leads to a different error message because removeChoice itself leads to selection_change being called, and the getChoice call made there does not take into account that get_gtk_property(cb, "active", Int) could return -1. So we get a BoundsError. How you fix that depends on your use case, for demo purposes I just return nothing here in that case:
# Function to get the selected choice (text) from the ComboBox
function getChoice()
i = get_gtk_property(cb, "active", Int)
return i >= 0 ? choices[i+1] : nothing
end
# Function that handles the ComboBox selection change---
function selection_changed(widget)
sel = getChoice()
println("We selected: $sel")
end
# Function to handle the button press------------------
function removeChoice(widget)
#async set_gtk_property!(cb,:active,-1)
end
Running this, the output as I select two, then "Remove Active", then four, then "Remove Active" again in the GUI is:
julia> We selected: two
We selected: nothing
We selected: four
We selected: nothing

Google Sheets: Click button to unhighlight row, highlight the next row, and update cell with date and time button was clicked

I'm trying to create a rotation scheduler. My goal is to have a table of names, phone numbers and a button.
When the button ('Assign') is pressed, it highlights a row, and updates a cell outside the table with the date & time it was clicked. When it is pressed again, it un-highlights that row and highlights the next row, and updates the date/time cell.
When it reaches the bottom, it should move back to the top. It should save where it left off between closing and opening the document and it needs to sync even when several users have it open... I don't think Excel can do that, but Google Sheets should be able to, which is why I'm leaning towards Google Sheets.
I completely understand if that's too much to expect someone to sort out on a forum, but I would very much appreciate even a point in the right direction as to figuring it out myself!!
When the button ('Assign') is pressed, it highlights a row, and
updates a cell outside the table with the date & time it was clicked.
You can add or create an image that acts as a button and associate a script to be triggered when it is clicked.
When it reaches the bottom, it should move back to the top.
One way of doing it is to keep track of the highlighted row and use modular arithmetic to wrap back to the start of the table.
It should save where it left off between closing and opening the
document
One option is to use the Properties Service to store the highlighted row.
I tried to implement a sample using these ideas (make a copy before you run): https://docs.google.com/spreadsheets/d/1bHN5cf2HaLTW3EbAxfXUusQnDL3dNFY313J8cdTGp4o/
The associated script:
var NUMBER_OF_ASSIGNEES = 5;
var LAST_ASSIGNMENT_DATETIME_CELL = 'G3';
var TABLE_OFFSET = 2;
function assignNewPerson(){
var sheet = SpreadsheetApp.getActive().getActiveSheet();
setAssignTime(sheet);
assignNext(sheet);
}
function setAssignTime(sheet) {
var d = new Date();
sheet.getRange(LAST_ASSIGNMENT_DATETIME_CELL).setValue(d.toLocaleTimeString());
}
function assignNext(sheet) {
// Use the Properties Service to store the current assignee index.
var documentProperties = PropertiesService.getDocumentProperties();
var currentAssigneeIndex = parseInt(documentProperties.getProperty('CURRENT_ASSIGNEE_INDEX'));
if (isNaN(currentAssigneeIndex)) {
currentAssigneeIndex = 0;
}
// Remove highlight from assignee cells.
sheet.getRange(TABLE_OFFSET + currentAssigneeIndex, 1, 1, 2).setBackground("white");
// Increment the assignee index. If the last row is reached, go back to the start of the table.
currentAssigneeIndex = (currentAssigneeIndex + 1) % NUMBER_OF_ASSIGNEES;
documentProperties.setProperty('CURRENT_ASSIGNEE_INDEX', currentAssigneeIndex);
// Highlight assignee cells.
sheet.getRange(TABLE_OFFSET + currentAssigneeIndex, 1, 1, 2).setBackground("yellow");
}

Function for Google Sheets' Script editor with a button for TODAY(), and NOW() in two different columns of which are the next not blank in the column

Currently, I'm looking at some simple documentation for vague ways to make a 'button' (image) over a Google sheet to trigger a function on the script editor. I'm not familiar with this type of Syntax, I typically do AutoHotKey, and a bit of python.
All I want to do is have this button populate 2 columns. The current date in one, and the current time in the other (It doesn't even have to have its year or the seconds tbh). I don't know if it matters of what the pages name is based on how the script works. So the range is ( 'Log'!G4:H ).
Like if I were to make it for AutoHotkey I would put it as :
WinGet, winid ,, A ; <-- need to identify window A = active
MsgBox, winid=%winid%
;do some stuff
WinActivate ahk_id %winid%
So it affects any page it's active on.
I would like to use the same function on the same columns across different sheets. Ideally, that is. I don't care if I have to clone each a unique function based on the page, but I just can't even grasp this first step, lol.
I'm not too familiar with this new macro. If I use this macro does it only work for my client, because of say like it recording relative aspect ratio movements?
IE if I record a macro on my PC, and play it on my android. Will the change in the platform change its execution?
If anyone can point me in any direction as to any good documentation or resources for the Google Sheet Script Editor or its syntaxes I would really appreciate it.
EDIT: Just to clarify. Im really focused in on it being a function that populates from a click/press(mobile) of an image. I currently use an onEDIT on the sheet, and it wouldnt serve the purposes that I want for this function. Its just a shortcut to quickly input a timestamp, and those fields can still be retouched without it just reapplying a new function for a newer current time/date.
EDIT:EDIT: Ended up with a image button that runs a script that can only input to the current cell.
function timeStamp() {
SpreadsheetApp.getActiveSheet()
.getActiveCell()
.setValue(new Date());
}
It only works on the cell targeted.
I would like to force the input in the next availible cell in the column, and split the date from the time, and put them into cells adjacent from one another.
maybe this will help... if the 1st column is edited it will auto-print date in 2nd column and time in 3rd column on Sheet1:
function onEdit(e) {
var s = SpreadsheetApp.getActiveSheet();
if( s.getName() == "Sheet1" ) {
var r = s.getActiveCell();
if( r.getColumn() == 1 ) {
var nextCell = r.offset(0, 1);
var newDate = Utilities.formatDate(new Date(),
"GMT+8", "MM/dd/yyyy");
nextCell.setValue(newDate);
}
if( r.getColumn() == 1 ) {
var nextCell = r.offset(0, 2);
var newDate1 = Utilities.formatDate(new Date(),
"GMT+8", "hh:mm:ss");
nextCell.setValue(newDate1);
}}}
https://webapps.stackexchange.com/a/130253/186471

How to expand a tree view using AutoIt

The UI is as following:
The tool "AutoIt Window Info" can only locate the elements in red (red rectangle area), the sub items can not be located.
So how can I expand or operate these items?
Usually Windows controls can be accessed using keystrokes as well.
In the screen-dump the Farmtt element is selected. That would be your starting point.
You may try:
Send("{DOWN}") Move down an element.
Send("{TAB}") Navigate to next control (button, checkbox, etc)
Send("{NumPadMult}") Recursively expands folders in a SysTreeView32.
Send("{ENTER}") ENTER key on the main keyboard
etc.
Reference:
https://www.autoitscript.com/autoit3/docs/appendix/SendKeys.htm
There are two things over here:
1) Use the following code snippet:
;Gets the handle for the text
Func readFirstlevelTreeNodes($hWndCtrl)
Local $firstItemHandle = _GUICtrlTreeView_GetFirstItem ($hWndCtrl)
Local $iCount = _GUICtrlTreeView_GetSiblingCount( $hWndCtrl, $firstItemHandle )
Dim $aRet[$iCount]
$aRet[0] = $firstItemHandle
For $index = 1 To $iCount - 1
$aRet[$index] = _GUICtrlTreeView_GetNextSibling ( $hWndCtrl, $firstItemHandle )
$firstItemHandle = $aRet[$index]
Next
getTreeNodeTextList($hWndCtrl,$aRet)
EndFunc
; Gets the text for given sibling node handle lists
Func getTreeNodeTextList($hWndCtrl,$aRet)
ConsoleWrite("Tree Node first level list"&#CRLF)
For $index = 0 To Ubound($aRet) -1
ConsoleWrite(_GUICtrlTreeView_GetText ( $hWndCtrl, $aRet[$index] )&#CRLF)
Next
EndFunc
You may see the output for the first level tree nodes.
2) If you still dont see the output then please verify the control handle values and window handles. If they are correct and it still doesnt show the first level tree nodes then try running your sciTE editor as administrator.
I think this should help.

"Down arrow" moves cursor to end of line - how to turn it off

In IPython Notebook / Jupyter, arrow up/down keystrokes within a cell are handled by CodeMirror (as far as I can tell). I use these actions a lot (re-bound to control-p / control-n) to move between cells; but at the end of every cell, the cursor moves to end of line first before jumping to the next cell. This is counter-intuitive and, to me, rather distracting.
Is there any way to configure CodeMirror to make this move down to be just that - a move down?
Thanks!
The moving-to-next-cell behavior is defined by IPython wrapper code, which probably checks whether the cursor is at the end of the current cell, and overrides the default CodeMirror behavior in that case. You'll have to find that handler and somehow replace it with one that checks whether the cursor is on the last line. (I don't know much about IPython, only about CodeMirror, so I can't point you at the proper way to find and override the relevant code. They might have bound the Down key, or they might have overridden the goLineDown command.)
Knowing that I wasn't alone in wanting to skip the "going to end of line" behavior when going down from the last line of a code cell, I investigated that behavior and found out that:
it's CodeMirror that goes to the end of line when you type down in the last line of a code cell (file: codemirror.js ; "methods": findPosV and moveV)
and it's IPython that decides what to do with the "down" event after it has been handled by CodeMirror (file: cell.js ; class: Cell ; method: handle_codemirror_keyevent) ; looking at the code, I saw that IPython ignores the event when not at the last character of the last line.
This essentially confirms Marijin's answer.
The primary goal being to jump to the next cell, I think there's no need to prevent CodeMirror from going to the end of that line. The point is to force IPython to handle the event anyway.
My solution was to change the code from Cell.prototype.handle_codemirror_keyevent to this:
Cell.prototype.handle_codemirror_keyevent = function (editor, event) {
var shortcuts = this.keyboard_manager.edit_shortcuts;
var cur = editor.getCursor();
if((cur.line !== 0) && event.keyCode === 38){
// going up, but not from the first line
// don't do anything more with the event
event._ipkmIgnore = true;
}
var nLastLine = editor.lastLine();
if ((event.keyCode === 40) &&
((cur.line !== nLastLine))
) {
// going down, but not from the last line
// don't do anything more with the event
event._ipkmIgnore = true;
}
// if this is an edit_shortcuts shortcut, the global keyboard/shortcut
// manager will handle it
if (shortcuts.handles(event)) {
return true;
}
return false;
};
This code provides the desired behavior for the "down-arrow" key (almost: the cursor still goes to the end of the line, except that we don't see it, as we're already in another cell at that point), and also handles the "up-arrow" key similarly.
To modify the handle_codemirror_keyevent prototype, you have two possibilities:
You edit the cell.js file and change the code of the prototype to the code I gave above. The file is in <python>/Lib/site-packages/IPython/html/static/notebook/js or something similar depending on you distro
Much better, after the page is loaded, you change that prototype dynamically by doing this:
IPython.Cell.prototype.handle_codemirror_keyevent = function (editor, event) {
<same code as above>
};
You can do that in your custom.js for example, or create an extension to do it (that's what I did).

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