bundesmessenger-ios/matrixConsole/External/GrowingTextView/example/Classes/GrowingTextViewExampleViewController.m

//
//  GrowingTextViewExampleViewController.m
//
//  Created by Hans Pinckaers on 29-06-10.
//
//	MIT License
//
//	Copyright (c) 2011 Hans Pinckaers
//
//	Permission is hereby granted, free of charge, to any person obtaining a copy
//	of this software and associated documentation files (the "Software"), to deal
//	in the Software without restriction, including without limitation the rights
//	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//	copies of the Software, and to permit persons to whom the Software is
//	furnished to do so, subject to the following conditions:
//
//	The above copyright notice and this permission notice shall be included in
//	all copies or substantial portions of the Software.
//
//	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//	THE SOFTWARE.

#import "GrowingTextViewExampleViewController.h"

@implementation GrowingTextViewExampleViewController


-(id)init
{
	self = [super init];
	if(self){
		[[NSNotificationCenter defaultCenter] addObserver:self 
												 selector:@selector(keyboardWillShow:) 
													 name:UIKeyboardWillShowNotification 
												   object:nil];
		
		[[NSNotificationCenter defaultCenter] addObserver:self 
												 selector:@selector(keyboardWillHide:) 
													 name:UIKeyboardWillHideNotification 
												   object:nil];		
	}
	
	return self;
}



// Implement loadView to create a view hierarchy programmatically, without using a nib.
- (void)loadView {
	self.view = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
    self.view.backgroundColor = [UIColor colorWithRed:219.0f/255.0f green:226.0f/255.0f blue:237.0f/255.0f alpha:1];
	
    containerView = [[UIView alloc] initWithFrame:CGRectMake(0, self.view.frame.size.height - 40, 320, 40)];
    
	textView = [[HPGrowingTextView alloc] initWithFrame:CGRectMake(6, 3, 240, 40)];
    textView.isScrollable = NO;
    textView.contentInset = UIEdgeInsetsMake(0, 5, 0, 5);
    
	textView.minNumberOfLines = 1;
	textView.maxNumberOfLines = 6;
    // you can also set the maximum height in points with maxHeight
    // textView.maxHeight = 200.0f;
	textView.returnKeyType = UIReturnKeyGo; //just as an example
	textView.font = [UIFont systemFontOfSize:15.0f];
	textView.delegate = self;
    textView.internalTextView.scrollIndicatorInsets = UIEdgeInsetsMake(5, 0, 5, 0);
    textView.backgroundColor = [UIColor whiteColor];
    textView.placeholder = @"Type to see the textView grow!";
    
    // textView.text = @"test\n\ntest";
	// textView.animateHeightChange = NO; //turns off animation

    [self.view addSubview:containerView];
	
    UIImage *rawEntryBackground = [UIImage imageNamed:@"MessageEntryInputField.png"];
    UIImage *entryBackground = [rawEntryBackground stretchableImageWithLeftCapWidth:13 topCapHeight:22];
    UIImageView *entryImageView = [[UIImageView alloc] initWithImage:entryBackground];
    entryImageView.frame = CGRectMake(5, 0, 248, 40);
    entryImageView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
            
    UIImage *rawBackground = [UIImage imageNamed:@"MessageEntryBackground.png"];
    UIImage *background = [rawBackground stretchableImageWithLeftCapWidth:13 topCapHeight:22];
    UIImageView *imageView = [[UIImageView alloc] initWithImage:background];
    imageView.frame = CGRectMake(0, 0, containerView.frame.size.width, containerView.frame.size.height);
    imageView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;

    textView.autoresizingMask = UIViewAutoresizingFlexibleWidth;
    
    // view hierachy
    [containerView addSubview:imageView];
    [containerView addSubview:textView];
    [containerView addSubview:entryImageView];

    UIImage *sendBtnBackground = [[UIImage imageNamed:@"MessageEntrySendButton.png"] stretchableImageWithLeftCapWidth:13 topCapHeight:0];
    UIImage *selectedSendBtnBackground = [[UIImage imageNamed:@"MessageEntrySendButton.png"] stretchableImageWithLeftCapWidth:13 topCapHeight:0];
    
	UIButton *doneBtn = [UIButton buttonWithType:UIButtonTypeCustom];
	doneBtn.frame = CGRectMake(containerView.frame.size.width - 69, 8, 63, 27);
    doneBtn.autoresizingMask = UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleLeftMargin;
	[doneBtn setTitle:@"Done" forState:UIControlStateNormal];
    
    [doneBtn setTitleShadowColor:[UIColor colorWithWhite:0 alpha:0.4] forState:UIControlStateNormal];
    doneBtn.titleLabel.shadowOffset = CGSizeMake (0.0, -1.0);
    doneBtn.titleLabel.font = [UIFont boldSystemFontOfSize:18.0f];
    
    [doneBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
	[doneBtn addTarget:self action:@selector(resignTextView) forControlEvents:UIControlEventTouchUpInside];
    [doneBtn setBackgroundImage:sendBtnBackground forState:UIControlStateNormal];
    [doneBtn setBackgroundImage:selectedSendBtnBackground forState:UIControlStateSelected];
	[containerView addSubview:doneBtn];
    containerView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin;
}

-(void)resignTextView
{
	[textView resignFirstResponder];
}

//Code from Brett Schumann
-(void) keyboardWillShow:(NSNotification *)note{
    // get keyboard size and loctaion
	CGRect keyboardBounds;
    [[note.userInfo valueForKey:UIKeyboardFrameEndUserInfoKey] getValue: &keyboardBounds];
    NSNumber *duration = [note.userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey];
    NSNumber *curve = [note.userInfo objectForKey:UIKeyboardAnimationCurveUserInfoKey];
    
    // Need to translate the bounds to account for rotation.
    keyboardBounds = [self.view convertRect:keyboardBounds toView:nil];
    
	// get a rect for the textView frame
	CGRect containerFrame = containerView.frame;
    containerFrame.origin.y = self.view.bounds.size.height - (keyboardBounds.size.height + containerFrame.size.height);
	// animations settings
	[UIView beginAnimations:nil context:NULL];
	[UIView setAnimationBeginsFromCurrentState:YES];
    [UIView setAnimationDuration:[duration doubleValue]];
    [UIView setAnimationCurve:[curve intValue]];
	
	// set views with new info
	containerView.frame = containerFrame;
 
	
	// commit animations
	[UIView commitAnimations];
}

-(void) keyboardWillHide:(NSNotification *)note{
    NSNumber *duration = [note.userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey];
    NSNumber *curve = [note.userInfo objectForKey:UIKeyboardAnimationCurveUserInfoKey];
	
	// get a rect for the textView frame
	CGRect containerFrame = containerView.frame;
    containerFrame.origin.y = self.view.bounds.size.height - containerFrame.size.height;
	
	// animations settings
	[UIView beginAnimations:nil context:NULL];
	[UIView setAnimationBeginsFromCurrentState:YES];
    [UIView setAnimationDuration:[duration doubleValue]];
    [UIView setAnimationCurve:[curve intValue]];

	// set views with new info
	containerView.frame = containerFrame;
	
	// commit animations
	[UIView commitAnimations];
}

- (void)growingTextView:(HPGrowingTextView *)growingTextView willChangeHeight:(float)height
{
    float diff = (growingTextView.frame.size.height - height);
		
	CGRect r = containerView.frame;
    r.size.height -= diff;
    r.origin.y += diff;
	containerView.frame = r;
}

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
    return YES;
}

- (void)didReceiveMemoryWarning {
	// Releases the view if it doesn't have a superview.
    [super didReceiveMemoryWarning];
	
	// Release any cached data, images, etc that aren't in use.
}

- (void)viewDidUnload {
	// Release any retained subviews of the main view.
	// e.g. self.myOutlet = nil;
}



@end