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105 lines
3.1 KiB
Objective-C
Executable file
105 lines
3.1 KiB
Objective-C
Executable file
//
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// HPTextViewInternal.m
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//
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// Created by Hans Pinckaers on 29-06-10.
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//
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// MIT License
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//
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// Copyright (c) 2011 Hans Pinckaers
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#import "HPTextViewInternal.h"
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@implementation HPTextViewInternal
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@synthesize placeholder;
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@synthesize placeholderColor;
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@synthesize displayPlaceHolder;
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- (void)setText:(NSString *)text {
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BOOL originalValue = self.scrollEnabled;
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// If one of GrowingTextView's superviews is a scrollView, and self.scrollEnabled == NO,
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// setting the text programatically will cause UIKit to search upwards until it finds a scrollView with
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// scrollEnabled==yes
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// then scroll it erratically. Setting scrollEnabled temporarily to YES prevents this.
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[self setScrollEnabled:YES];
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[super setText:text];
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[self setScrollEnabled:originalValue];
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}
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- (void)setScrollable:(BOOL)isScrollable {
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[super setScrollEnabled:isScrollable];
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}
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- (void)setContentOffset:(CGPoint)s {
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if (self.tracking || self.decelerating) {
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// initiated by user...
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UIEdgeInsets insets = self.contentInset;
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insets.bottom = 0;
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insets.top = 0;
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self.contentInset = insets;
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} else {
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float bottomOffset = (self.contentSize.height - self.frame.size.height + self.contentInset.bottom);
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if (s.y < bottomOffset && self.scrollEnabled) {
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UIEdgeInsets insets = self.contentInset;
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insets.bottom = 8;
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insets.top = 0;
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self.contentInset = insets;
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}
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}
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[super setContentOffset:s];
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}
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- (void)setContentInset:(UIEdgeInsets)s {
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UIEdgeInsets insets = s;
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if (s.bottom > 8)
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insets.bottom = 0;
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insets.top = 0;
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[super setContentInset:insets];
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}
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- (void)setContentSize:(CGSize)contentSize {
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// is this an iOS5 bug? Need testing!
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if (self.contentSize.height > contentSize.height) {
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UIEdgeInsets insets = self.contentInset;
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insets.bottom = 0;
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insets.top = 0;
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self.contentInset = insets;
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}
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[super setContentSize:contentSize];
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}
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- (void)drawRect:(CGRect)rect {
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[super drawRect:rect];
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if (displayPlaceHolder && placeholder && placeholderColor) {
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[placeholderColor set];
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[placeholder drawInRect:CGRectMake(8.0f, 8.0f, self.frame.size.width - 16.0f, self.frame.size.height - 16.0f)
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withFont:self.font];
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}
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}
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@end
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