https://github.com/yatsu/treemapkit

TreeMap for Cocoa Touch (iPhone/iPod touch/iPad)
https://github.com/yatsu/treemapkit

Last synced: about 1 month ago
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TreeMap for Cocoa Touch (iPhone/iPod touch/iPad)

• Host: GitHub
• URL: https://github.com/yatsu/treemapkit
• Owner: yatsu
• License: mit
• Created: 2010-04-10T05:34:56.000Z (over 14 years ago)
• Default Branch: master
• Last Pushed: 2012-08-24T06:14:22.000Z (over 12 years ago)
• Last Synced: 2024-10-12T19:02:41.864Z (2 months ago)
• Language: Objective-C
• Homepage: http://github.com/yatsu/treemapkit
• Size: 194 KB
• Stars: 242
• Watchers: 8
• Forks: 44
• Open Issues: 2
• Metadata Files:
  • Readme: README.mdown
  • License: LICENSE.txt

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• awesome - treemapkit - TreeMap for Cocoa Touch (iPhone/iPod touch/iPad) (etc)

README

        
TreemapKit

==========

TreemapKit is a treemap implementation for Cocoa Touch.

You can display treemaps in iPhone, iPod touch and iPad.

[Click here to see the simple demo app](http://www.flickr.com/photos/14555412@N05/4507143423/ )

![](http://farm3.static.flickr.com/2302/4507143463_63823457b8.jpg)

License

-------

TreemapKit is provided under the [MIT License](http://github.com/yatsu/treemapkit/blob/master/LICENSE.txt ).

How to use

----------

1. Copy TreemapKit folder to your source tree and add it to Xcode project.

2. Import "TreemapView.h" from your code.

3. Implement both TreemapViewDataSource and TreemapViewDelegate protocols.

Class References

----------------

### TreemapView

#### reloadData

`- (void)reloadData`

Reload the data of the treemap.

Call this method to reload all the data that is used to construct the treemap including cells.

If you want to change the cell content, implement `treemapView:updateCell:forIndex:forRect:`.

### TreemapViewCell

A basic implementation of the treemap cell.

You can make a sub-class to show more information or images.

#### textLabel

`UILabel *textLabel`

The label used for the main textual content of the tremap cell.

#### valueLabel

`UILabel *valueLabel`

The label used to show a value of the cell.

#### index

`NSinteger index`

The cell index.

#### initWithFrame:

`- (id)initWithFrame:(CGRect)frame`

Initialize the cell with a frame.

### TreemapViewDataSource

The data source protocol for a TreemapView object.

#### valuesForTreemapView: _(required method)_

`- (NSArray *)valuesForTreemapView:(TreemapView *)treemapView;`

Provides data for a TreemapView as a NSArray.

Tree or other data structures are currently not supported.

#### TreemapView:cellForIndex:forRect: _(required method)_

`- (TreemapViewCell *)treemapView:(TreemapView *)treemapView cellForIndex:(NSInteger)index forRect:(CGRect)rect;`

Returns a cell object for the specified place.

You need to create a TreemapViewCell and return it.

#### treemapView:separatorWidthForDepth:

`- (float)treemapView:(TreemapView *)treemapView separatorWidthForDepth:(NSInteger)depth;`

Returns a separator width for the specified depth.

If you don't need to change the width for the specified depth, return 0.

The default separator width is 0.

#### treemapView:separationPositionForDepth:

`- (NSInteger)treemapView:(TreemapView *)treemapView separationPositionForDepth:(NSInteger)depth;`

Normally TreemapView separate two rectangles with calculating the areas, but if you want to separate two groups manually, return the index of the cells.

If you don't need to change the separation position for the specified depth, return NSIntegerMax.

### TreemapViewDelegate

The delegate of a TreemapView object.

#### treemapView:tapped:

`- (void)treemapView:(TreemapView *)treemapView tapped:(NSInteger)index;`

Tells the delegate that the specified cell is tapped.

#### treemapView:updateCell:forIndex:forRect:

`- (void)treemapView:(TreemapView *)treemapView updateCell:(TreemapViewCell *)cell forIndex:(NSInteger)index forRect:(CGRect)rect;`

Tells the delegate that the specified cell should be updated.

You need to update the cell content manually in this method.

Links

-----

* [@chris124's three20 branch](https://github.com/chris124/treemapkit/tree/three20 )