Description: creating a data grid using specified data source and proxy data source.
#import "ProxyDataSource.h"
#import "DataSource.h"
#import "NuMenu.h"
#import "LinearGradientBrush.h"
#import "RadialGradientBrush.h"
#import "GradientStop.h"
@interface ViewController : UIViewController<NuGridDelegate, UIPopoverControllerDelegate, NuMenuDelegate, NuGridActionDelegate> {
DataSource *datasource; // Data source
ProxyDataSource *proxyDatasource; // Proxy data source
NuGridController *contr; // Table manager
NSInteger colWidth; // Table column width
NSInteger rowHeight; // Table row width
UIPopoverController *popover; // Menu popup window
}
// Executes custom example placed in the body of this method
- (void) executeExample;
@end
#import "ViewController.h"
#import <NuGridView/NuGridController.h>
#import <NuGridView/NuTextGridCell.h>
#import <NuGridView/NuGridGradientBrush.h>
#import <NuGridView/NuGridLinearGradientBrush.h>
#import <NuGridView/NuGridRadialGradientBrush.h>
#import <NuGridView/NuGridSolidColorBrush.h>
#import <NuGridView/NuGridCellImage.h>
#import <NuGridView/NuGridImageTextCell.h>
#import <NuGridView/NuGridExpandableCell.h>
#import "NuMenuController.h"
#import "SparklineCell.h"
#import "CustomCell.h"
@implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Create a data source
datasource = [[DataSource alloc] init];
// Create a proxy data source
proxyDatasource = [[ProxyDataSource alloc] init];
// Set link to data source for proxy data source
[proxyDatasource setDataSource:datasource];
// Create an object controlling table
contr = [[NuGridController alloc] init];
// Set link to proxy data source
[contr setDataSource:proxyDatasource];
// Set object for controlling table basic functionality
[contr setDelegate:self];
// Set object for executing various operations on table
[contr setActionDelegate:self];
// Enable sorting
[contr setCanSort:YES];
// Enable using of fixed rows and columns
[contr setCanFix:YES];
[contr setDockable:YES];
// Determine color and thickness of horizontal separator line
[contr setHorizontalSeparateLineColor:[UIColor redColor]];
[contr setHorizontalSeparateLineSize:2];
// Determine color and thickness of vertical separator line
[contr setVerticalSeparateLineColor:[UIColor redColor]];
[contr setVerticalSeparateLineSize:2];
// Determine table rotation icons
[contr setFullRotationGestureImage:[UIImage imageNamed:@"full_gesture.png"]];
[contr setHalfRotationGestureImage:[UIImage imageNamed:@"half_gesture.png"]];
// Enable displaying of table rotation icons
[contr setShowRotatingImages:YES];
// Disable handling of events related to data source refresh
[contr setSendEventBeforeAndAfterDataSourceUpdate: NO];
// Set column width
colWidth = 80;
// Set row height
rowHeight = 50;
// Create a table formatting theme
NuGridTheme *simpleTheme = [[NuGridTheme new] autorelease];
// Create a header style
NuGridCellStyle *headerStyle = [[NuGridCellStyle new] autorelease];
// Determine background color
[headerStyle setBackgroundColor:[UIColor
colorWithRed:0.90 green:0.91 blue:0.96 alpha:1]];
// Determine font type and size
[headerStyle setFont:[UIFont fontWithName:@"Arial" size:14]];
[headerStyle setTextColor:[UIColor whiteColor]];
// Align text by center
[headerStyle setTextAlignment:UITextAlignmentCenter];
[headerStyle setLineBreakMode:UILineBreakModeWordWrap];
[headerStyle setTextColor:[UIColor blackColor]];
[headerStyle setStyleName:@"Table header style"];
[headerStyle setHighlightTextColor:[UIColor yellowColor]];
// Add style to formatting theme
[simpleTheme setDefaultRowHeaderStyle:headerStyle];
[simpleTheme setDefaultColumnHeaderStyle:headerStyle];
// Determine style for other table default cells
NuGridCellStyle *cellStyle = [NuGridCellStyle deafultStyle];
// Remove images used by collapsed and expanded expander
[cellStyle removeExpandedImage];
[cellStyle removeCollapsedImage];
[cellStyle setExpanderImageMargin:0];
// Set default style
[simpleTheme setDefaultStyle:cellStyle];
// Set table styles
[proxyDatasource gridView:(NuGridView *)[contr view] setTheme:simpleTheme];
// Execute custom example
[self executeExample];
// Add created table to application
[self.view addSubview:[contr gridView]];
}
// Executes custom example placed in the body of this method
-(void) executeExample {
};
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
[contr.gridView setFrame:self.view.frame];
}
// Handles menu item selection event
- (void) nuMenu:(NuMenu *)menu selectedItem:(int)itemRow {
UIMenuItem *item = [[menu items] objectAtIndex:itemRow];
[[[contr gridView] gridDelegate] performSelector:item.action withObject:item];
[self dismissPopover];
}
- (void) nuMenuCanceled:(NuMenu *)menu
{
[self dismissPopover];
}
// Removes popup window in table
- (void) dismissPopover {
[popover dismissPopoverAnimated:YES];
[popover release];
popover = nil;
if ([[contr gridView] respondsToSelector:@selector(setScrollEnabled:)]) {
[(UIScrollView *)[contr gridView] setScrollEnabled:YES];
}
};
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
// Enables automatic changing of screen orientation
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
NuGridView *view = contr.gridView;
CGRect frame;
if(interfaceOrientation == UIInterfaceOrientationPortrait)
frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height);
else
frame = CGRectMake(0, 0, self.view.frame.size.height, self.view.frame.size.width);
view.frame = frame;
return YES;
}
// Returns column width
- (double)gridView:(NuGridView *)gridView widthForColumn:(NSInteger)columnNumber
{
return colWidth;
}
// Returns row height
- (double) gridView:(NuGridView *)gridView heightForRow:(NSInteger)rowNumber
{
return rowHeight;
}
// Returns column header height
-(double) gridView:(NuGridView *)gridView heightForHeaderColumnWithNumber:(NSInteger)number
{
return 50 / 1.5;
}
// Returns row header width
- (double) gridView:(NuGridView *)gridView widthForHeaderRowWithNumber:(NSInteger)number
{
return 80 / 1.5;
}
// Returns whether column is fixed
- (BOOL)gridView:(NuGridView *)gridView isColumnWithIndexFixed:(NSInteger)columnIndex
{
return NO;
}
// Returns whether row is fixed
- (BOOL)gridView:(NuGridView *)gridView isRowWithIndexFixed:(NSInteger)rowIndex
{
return NO;
}
@end
See also: