Re: Filling View With Pattern Image
thanks Florian. i'll be sure to use your helpful code for my mac
programming. :)
On Fri, Jun 19, 2009 at 4:27 AM, Florian Soenens wrote:
> You will have to do it programmatically but it's pretty easy stuff.
> This should do the trick nicely:
>
> -(void)drawBackgroundPattern
> {
> // Suppose backgroundPatternImage is a valid reference to your
> pattern image
>
> NSRect rect = [self frame];
>
> float width = rect.size.width;
> float height = rect.size.height;
>
> float bgWidth = [backgroundPatternImage size].width;
> float bgHeight = [backgroundPatternImage size].height;
> float xPos = 0;
> float yPos = height - bgHeight;
>
> while(yPos >= 0 - bgHeight)
> {
> while (xPos < width)
> {
> NSRect drawRect = NSMakeRect(xPos, yPos, bgWidth,
> bgHeight);
> [backgroundPatternImage drawInRect:drawRect
> fromRect:NSZeroRect operation:NSCompositeSourceOver fraction:1.0];
> xPos += bgWidth;
> }
> xPos = 0;
> yPos -= bgHeight;
> }
> }
>
> -(void)drawRect:(NSRect)aRect
> {
> [self drawBackgroundPattern];
> }
>
> hth,
> Florian.
>
> On 19 Jun 2009, at 10:14, Chunk 1978 wrote:
>
>> i have this image ("image.png") that i would like to tile throughout
>> the view...
>>
>> i've read the Quartz 2D programming guide... ok, ok, i breezed thru
>> it, i admit... but i couldn't seem to find an easy way of repeating an
>> image through out a view without actually drawing the image
>> programatically...
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Re: Filling View With Pattern Image
hi rob, thanks for this answer. i forgot to mention that it is for
UIView on iPhone OS. i just found a super simple way of managing this
using the backgroundColor property of the view:
self.backgroundColor = [UIColor colorWithPatternImage:[UIImage
imageNamed:@"image.png"]];
On Fri, Jun 19, 2009 at 4:24 AM, Rob Keniger wrote:
>
> On 19/06/2009, at 6:14 PM, Chunk 1978 wrote:
>
>> i have this image ("image.png") that i would like to tile throughout
>> the view...
>>
>> i've read the Quartz 2D programming guide... ok, ok, i breezed thru
>> it, i admit... but i couldn't seem to find an easy way of repeating an
>> image through out a view without actually drawing the image
>> programatically...
>
>
> It's actually a little complicated, you need to create an NSColor instance
> using a pattern image and then when you draw it you need to set the
> patternPhase of the current NSGraphicsContext so that your image is drawn in
> the correct place.
>
> Have a look at Dave Batton's excellent DBBackgroundView:
>
> http://www.mere-mortal-software.com/blog/details.php?d=2007-01-16&c=show
>
> --
> Rob Keniger
>
>
>
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Re: Filling View With Pattern Image
You will have to do it programmatically but it's pretty easy stuff.
This should do the trick nicely:
-(void)drawBackgroundPattern
{
// Suppose backgroundPatternImage is a valid reference to your
pattern image
NSRect rect = [self frame];
float width = rect.size.width;
float height = rect.size.height;
float bgWidth = [backgroundPatternImage size].width;
float bgHeight = [backgroundPatternImage size].height;
float xPos = 0;
float yPos = height - bgHeight;
while(yPos >= 0 - bgHeight)
{
while (xPos < width)
{
NSRect drawRect = NSMakeRect(xPos, yPos, bgWidth,
bgHeight);
[backgroundPatternImage drawInRect:drawRect fromRect:NSZeroRect
operation:NSCompositeSourceOver fraction:1.0];
xPos += bgWidth;
}
xPos = 0;
yPos -= bgHeight;
}
}
-(void)drawRect:(NSRect)aRect
{
[self drawBackgroundPattern];
}
hth,
Florian.
On 19 Jun 2009, at 10:14, Chunk 1978 wrote:
i have this image ("image.png") that i would like to tile throughout
the view...
i've read the Quartz 2D programming guide... ok, ok, i breezed thru
it, i admit... but i couldn't seem to find an easy way of repeating an
image through out a view without actually drawing the image
programatically...
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Re: Filling View With Pattern Image
On 19/06/2009, at 6:14 PM, Chunk 1978 wrote:
i have this image ("image.png") that i would like to tile throughout
the view...
i've read the Quartz 2D programming guide... ok, ok, i breezed thru
it, i admit... but i couldn't seem to find an easy way of repeating an
image through out a view without actually drawing the image
programatically...
It's actually a little complicated, you need to create an NSColor
instance using a pattern image and then when you draw it you need to
set the patternPhase of the current NSGraphicsContext so that your
image is drawn in the correct place.
Have a look at Dave Batton's excellent DBBackgroundView:
http://www.mere-mortal-software.com/blog/details.php?d=2007-01-16&c=show
--
Rob Keniger
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Filling View With Pattern Image
i have this image ("image.png") that i would like to tile throughout
the view...
i've read the Quartz 2D programming guide... ok, ok, i breezed thru
it, i admit... but i couldn't seem to find an easy way of repeating an
image through out a view without actually drawing the image
programatically...
___
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