Re: Dynamically Resize NSView Subclass to NSScrollView
Re: Dynamically Resize NSView Subclass to NSScrollView
- Subject: Re: Dynamically Resize NSView Subclass to NSScrollView
- From: Mijobe <email@hidden>
- Date: Sun, 25 Jan 2004 14:34:39 -0500
Thank you for your reply. That part I've got working. Where I'm
running into trouble is implementing a minimum size for the drawing
canvas. For instance if I enlarge the window, draw graphics, then
shrink the window I want the contained canvas to maintain a size large
enough to contain all of the drawn graphics that should then cause the
NSScrollView to display scrollbars allowing the user to scroll the
entire size of the canvas. This needs to be done dynamically because I
want the user to be able to simply and quickly resize their drawing
surface.
-
email@hidden
<xinjen/>
On Jan 24, 2004, at 9:01 PM, Ujwal S. Sathyam wrote:
That's pretty much the function of the scrollview. You will have to
set:
[scrollView setDocumentView: canvasView];
[canvasView setAutoresizingMask:
NSViewWidthSizable|NSViewHeightSizable];
either in your nib or in code.
That should do it.
Ujwal
I am developing a drawing application that allows users to draw
arbitrary shapes onto a canvas, very similar to Apple's Sketch
example application. I would like the size of the canvas to follow
the size of its containing NSScrollView as long as it is large enough
to display the contents of the canvas. If the NSScrollView is shrunk
below the amount of space needed to display the graphics then I would
like the canvas to stop resizing allowing the scrollbars to appear.
To clarify here are a few example scenarios of how I would like it to
work:
- The user requires more canvas surface for their graphics and so
they resize the window to fit the additional content. As the window
is enlarged the NSScrollView is enlarge and the NSView follows in
suit by enlarging its drawing surface.
- The user has drawn all of the graphics for a particular canvas and
doesn't want the window taking up all of their desktop space but
wants to work with particular sections of the canvas so they shrink
the window smaller than the space required by the canvas to display
all the graphics. Once the size becomes too small to display all of
the graphics the NSView stops resizing and the NSScrollView then
displays its scrollbars allowing the user to scroll over the canvas.
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