I used Google and found some references for integer in Java.
But "int" not only does not work, it also prevents reading X and Y
coordinates of the mouse.
What i would like to do:
1) Get X and Y mouse coordinates into a variable that i can do real math on.
So far, i can do math on the values "read" and that result goes into
a "variable" that is useful *only* for display.
If i try "int" in that math, the values are then zero for everything
- even those where i do no calculation.
2) Use the calculated integer values as an index to a table or array.
It is acceptable to use an HTML "table" as the source for the lookup;
W(CalcFromX) and P(CalcFromX) would be the resulting values to be
displayed on the screen somewhere.
Can this be done, and eXactly how?
36  2033 
Robert Baer wrote: I used Google and found some references for integer in Java.
This newsgroup is about JavaScript, not Java. The two have little more
in common than cars and carpets.
But "int" not only does not work, it also prevents reading X and Y
coordinates of the mouse.
How are you trying to read the coordinates? It sounds like you are
trying to write JavaScript using Java documentation. Recognise the
distinction between the languages and you should find it much easier to
find the documentation you need.
--
David Dorward http://dorward.me.uk/
Robert Baer wrote: I used Google and found some references for integer in Java.
JavaScript is not Java.
But "int" not only does not work, it also prevents reading X and Y
coordinates of the mouse.
There is no 'int' type in JavaScript. Variables are typeless, their values
have types. Reading mouse co-ordinates is done by accessing the properties
of a mouse event. You can read about events at Quirksmode:
<URL:http://www.quirksmode. org/js/introevents.htm l>
What i would like to do:
1) Get X and Y mouse coordinates into a variable that i can do real math
on.
If you are looking for the co-ordinates of a mouse click, try this from
Quirksmode:
function doSomething(e)
{
var posx = 0;
var posy = 0;
if (!e) var e = window.event;
// W3C compliant browsers
if (e.pageX || e.pageY) {
posx = e.pageX;
posy = e.pageY;
// MS IE compliant version
} else if (e.clientX || e.clientY) {
posx = e.clientX + document.body.s crollLeft;
posy = e.clientY + document.body.s crollTop;
}
// posx and posy contain the mouse position relative to the document
// Do something with this information
}
Call it from a body click event:
<body onclick="doSome thing(event);">
So far, i can do math on the values "read" and that result goes into a
"variable" that is useful *only* for display.
If i try "int" in that math, the values are then zero for everything -
even those where i do no calculation.
Without seeing the code, it is impossible to say what is going on.
2) Use the calculated integer values as an index to a table or array.
It is acceptable to use an HTML "table" as the source for the lookup;
W(CalcFromX) and P(CalcFromX) would be the resulting values to be
displayed on the screen somewhere.
Can this be done, and eXactly how?
<title>Click coords</title>
<style type="text/css">
#xx {width: 100%; height: 100%;}
</style>
<script type="text/javascript">
function clickCoords(e)
{
var coords = {x:0, y:0};
if (e.pageX || e.pageY) {
coords = {x: e.pageX, y: e.pageY};
} else if (e.clientX || e.clientY) {
coords = {x: e.clientX + document.body.s crollLeft,
y: e.clientY + document.body.s crollTop};
}
return coords;
}
function showClickXY(e)
{
var e = e || window.event
var coords = clickCoords(e);
document.getEle mentById('xx'). innerHTML = coords.x + ', ' + coords.y;
}
</script>
<body onclick="showCl ickXY(event);">
<div>Click coords: <span id="xx"></span></div>
</body>
In the above example, the coordinates of the mouse click are passed to an
object called 'coords' with properties x and y whose values are set to the
location of the mouse click.
--
Rob
RobG wrote: Robert Baer wrote: But "int" not only does not work, it also prevents reading X and Y
coordinates of the mouse.
There is no 'int' type in JavaScript. Variables are typeless, their
values have types.
Not quite true. There is an `int' type, and variables can be strictly
typed, in JavaScript 2.0. However, that is not implemented in a browser
yet.
PointedEars
Thomas 'PointedEars' Lahn said the following on 3/30/2006 12:42 PM: RobG wrote:
Robert Baer wrote: But "int" not only does not work, it also prevents reading X and Y
coordinates of the mouse.
There is no 'int' type in JavaScript. Variables are typeless, their
values have types.
Not quite true. There is an `int' type, and variables can be strictly
typed, in JavaScript 2.0. However, that is not implemented in a browser
yet.
And as such, even mentioning it is useless other than a waste of
bandwidth and time for anybody who reads it.
--
Randy
comp.lang.javas cript FAQ - http://jibbering.com/faq & newsgroup weekly
Javascript Best Practices - http://www.JavascriptToolbox.com/bestpractices/
David Dorward wrote: Robert Baer wrote:
I used Google and found some references for integer in Java.
This newsgroup is about JavaScript, not Java. The two have little more
in common than cars and carpets.
But "int" not only does not work, it also prevents reading X and Y
coordinates of the mouse.
How are you trying to read the coordinates? It sounds like you are
trying to write JavaScript using Java documentation. Recognise the
distinction between the languages and you should find it much easier to
find the documentation you need.
I am adding Java in HTML to do things that HTML apparently cannot do.
Will get the code i have been working with (in another OS on a
different drive) and post it.
RobG wrote: Robert Baer wrote:
I used Google and found some references for integer in Java.
JavaScript is not Java.
But "int" not only does not work, it also prevents reading X and Y
coordinates of the mouse.
There is no 'int' type in JavaScript. Variables are typeless, their
values have types. Reading mouse co-ordinates is done by accessing the
properties of a mouse event. You can read about events at Quirksmode:
<URL:http://www.quirksmode. org/js/introevents.htm l>
What i would like to do:
1) Get X and Y mouse coordinates into a variable that i can do real
math on.
If you are looking for the co-ordinates of a mouse click, try this from
Quirksmode:
function doSomething(e)
{
var posx = 0;
var posy = 0;
if (!e) var e = window.event;
// W3C compliant browsers
if (e.pageX || e.pageY) {
posx = e.pageX;
posy = e.pageY;
// MS IE compliant version
} else if (e.clientX || e.clientY) {
posx = e.clientX + document.body.s crollLeft;
posy = e.clientY + document.body.s crollTop;
}
// posx and posy contain the mouse position relative to the document
// Do something with this information
}
Call it from a body click event:
<body onclick="doSome thing(event);">
So far, i can do math on the values "read" and that result goes into
a "variable" that is useful *only* for display.
If i try "int" in that math, the values are then zero for everything
- even those where i do no calculation.
Without seeing the code, it is impossible to say what is going on.
2) Use the calculated integer values as an index to a table or array.
It is acceptable to use an HTML "table" as the source for the
lookup; W(CalcFromX) and P(CalcFromX) would be the resulting values to
be displayed on the screen somewhere.
Can this be done, and eXactly how?
<title>Click coords</title>
<style type="text/css">
#xx {width: 100%; height: 100%;}
</style>
<script type="text/javascript">
function clickCoords(e)
{
var coords = {x:0, y:0};
if (e.pageX || e.pageY) {
coords = {x: e.pageX, y: e.pageY};
} else if (e.clientX || e.clientY) {
coords = {x: e.clientX + document.body.s crollLeft,
y: e.clientY + document.body.s crollTop};
}
return coords;
}
function showClickXY(e)
{
var e = e || window.event
var coords = clickCoords(e);
document.getEle mentById('xx'). innerHTML = coords.x + ', ' + coords.y;
}
</script>
<body onclick="showCl ickXY(event);">
<div>Click coords: <span id="xx"></span></div>
</body>
In the above example, the coordinates of the mouse click are passed to
an object called 'coords' with properties x and y whose values are set
to the location of the mouse click.
What you have given looks like it may be very useful; i had no idea
that different browsers would have to be treated differently.
I do know that there are webpages that are browser *hostile* (causes
them to hang and requires a power off reset); those &^%#$&#$ pages work
only with InfuriatingExas perator.
Can the Mafia be hired for a hit on M$?
Better yet, can a few good programmers be hired to make an OS like
Windows that accepts all the programs that WinQQ without the bloat and bugs?
The next task would be a decent bug-free browser that follows all of
the standards.
Thomas 'PointedEars' Lahn wrote: RobG wrote:
Robert Baer wrote:
But "int" not only does not work, it also prevents reading X and Y
coordinate s of the mouse.
There is no 'int' type in JavaScript. Variables are typeless, their
values have types.
Not quite true. There is an `int' type, and variables can be strictly
typed, in JavaScript 2.0. However, that is not implemented in a browser
yet.
PointedEars
-->THAT<-- explains why "int" does not work, and possibly why it
kills the mouse coordinates.
Will get my HTML with Jave code from my othe OS and drive for posting.
Randy Webb wrote: Thomas 'PointedEars' Lahn said the following on 3/30/2006 12:42 PM:
RobG wrote:
Robert Baer wrote:
But "int" not only does not work, it also prevents reading X and Y
coordinates of the mouse.
There is no 'int' type in JavaScript. Variables are typeless, their
values have types.
Not quite true. There is an `int' type, and variables can be strictly
typed, in JavaScript 2.0. However, that is not implemented in a browser
yet.
And as such, even mentioning it is useless other than a waste of
bandwidth and time for anybody who reads it.
Incorrect; the info explained why i had so much trouble.
Robert Baer said the following on 3/31/2006 6:28 AM: Randy Webb wrote:
Thomas 'PointedEars' Lahn said the following on 3/30/2006 12:42 PM:
RobG wrote:
Robert Baer wrote:
> But "int" not only does not work, it also prevents reading X and
> Y coordinates of the mouse.
There is no 'int' type in JavaScript. Variables are typeless, their
values have types.
Not quite true. There is an `int' type, and variables can be strictly
typed, in JavaScript 2.0. However, that is not implemented in a browser
yet.
And as such, even mentioning it is useless other than a waste of
bandwidth and time for anybody who reads it.
Incorrect; the info explained why i had so much trouble.
You had trouble because you were using, or attempting to use, a feature
that is not part of the language. Not because of a feature that might be
in a future release of the language unless you were reading a draft copy
of JavaScript2.0 in which case you should have known it wasn't in use yet.
--
Randy
comp.lang.javas cript FAQ - http://jibbering.com/faq & newsgroup weekly
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But "int" not only does not work, it also prevents reading X and Y
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What i would like to do:
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So far, i can do math on the values "read" and that result goes into
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