Thank you very much for your reply.
I can now print the right view. This view (Parent View) has only two large
custom subviews in which I display graphics.
Currently, when I print Parent View, it is vertically spanned over two pages
(which are printed) and horizontally spanned over two pages (which are not
printed).
I tried to determine the size of the printable area of one page and to print a
rectangle to materialize it, but I couldn't get it right. Here is the code:
NSPrintInfo* printInfo = [[NSPrintOperation currentOperation]
printInfo];
NSSize paperSize = [printInfo paperSize];
NSSize printAreaSize = NSMakeSize(0.0, 0.0);
printAreaSize.height = paperSize.height - [printInfo topMargin] -
[printInfo bottomMargin];
printAreaSize.width = paperSize.width - [printInfo leftMargin] -
[printInfo rightMargin];
// I tried with and without the code below. If I divide by (scale*2.0)
then the rectangle fits the paper but is displayed across two pages
float scale = [[[printInfo dictionary]
objectForKey:NSPrintScalingFactor] floatValue];
paperSize.width = paperSize.width / (scale);
paperSize.height = paperSize.height / (scale);
[NSBezierPath strokeRect:NSMakeRect(0, 0, paperSize.width,
paperSize.height)];
Currently, the size I get for the with paper size is way too large, even when
divided by scale. This code is executed in parent view.
On 21 janv. 2013, at 18:36, Keary Suska <cocoa-...@esoteritech.com> wrote:
> On Jan 21, 2013, at 8:17 AM, Jean Suisse wrote:
>
>> I have a non-document based application to which I would like to add
>> printing support.
>> The main window (the one in the .xib created by default by Xcode) contains a
>> split view.
>>
>> Currently, when printing, I get only the left pane of the split view (at
>> best) or the control that has the focus (a textfield for instance) at worse.
>
> This likely has to do with which view is the first responder, and so is
> receiving a -print: action that has a nil target. Although that is how the
> menu is wired by default, I rarely find it useful. I generally use a custom
> method (one not implemented by any NSResponder class), so you can capture the
> print request.
>
>> What would be the minimum change to perform in order to get the view in the
>> right side of the split view to print itself in landscape (I would like to
>> offer landscape by default to the user) ? I am happy with the rest of the
>> print flow the way it is.
>
> IIRC, unless otherwise specified, all built-in printing methods will use
> +[NSPrintInfo sharedPrintInfo] to determine page settings. You can customize
> your own NSPrintInfo and call +setSharedPrintInfo:. Or you can create your
> own printing session and pass the print info to it.
>
>> P.S.: I saw the Laying Out Page Content section in Printing Programming
>> Guide, but I don't get how it is decided that the content of the view
>> exceeds the size of a single page. I would prefer my view to be told to fit
>> the selected page size (It is possible in my particular situation. I am
>> printing graphics that can be resized to any size, to any ratio).
>
> AFAIK, fit-to-page is not a Cocoa printing system feature. You will have to
> do that yourself. In theory, the easiest way would be to determine the
> scaling factor needed and set that in the NSPrintInfo. NSPrintInfo will tell
> you the paper size and margins, from which you can determine the printable
> area, then dividing that by the view frame or bounds.
>
> HTH,
>
> Keary Suska
> Esoteritech, Inc.
> "Demystifying technology for your home or business"
>
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