Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tree: 580747fc57
217 lines (172 sloc) 5.259 kb
//
// MGSplitDividerView.m
// MGSplitView
//
// Created by Matt Gemmell on 26/07/2010.
// Copyright 2010 Instinctive Code.
//
#import "MGSplitDividerView.h"
#import "MGSplitViewController.h"
@implementation MGSplitDividerView
#pragma mark -
#pragma mark Setup and teardown
- (id)initWithFrame:(CGRect)frame
{
if ((self = [super initWithFrame:frame])) {
self.userInteractionEnabled = NO;
self.allowsDragging = NO;
self.contentMode = UIViewContentModeRedraw;
}
return self;
}
- (void)dealloc
{
self.splitViewController = nil;
[super dealloc];
}
#pragma mark -
#pragma mark Drawing
- (void)drawRect:(CGRect)rect
{
if (splitViewController.dividerStyle == MGSplitViewDividerStyleThin) {
[super drawRect:rect];
} else if (splitViewController.dividerStyle == MGSplitViewDividerStylePaneSplitter) {
// Draw gradient background.
CGRect bounds = self.bounds;
CGColorSpaceRef rgb = CGColorSpaceCreateDeviceRGB();
CGFloat locations[2] = {0, 1};
CGFloat components[8] = { 0.988, 0.988, 0.988, 1.0, // light
0.875, 0.875, 0.875, 1.0 };// dark
CGGradientRef gradient = CGGradientCreateWithColorComponents (rgb, components, locations, 2);
CGContextRef context = UIGraphicsGetCurrentContext();
CGPoint start, end;
if (splitViewController.vertical) {
// Light left to dark right.
start = CGPointMake(CGRectGetMinX(bounds), CGRectGetMidY(bounds));
end = CGPointMake(CGRectGetMaxX(bounds), CGRectGetMidY(bounds));
} else {
// Light top to dark bottom.
start = CGPointMake(CGRectGetMidX(bounds), CGRectGetMinY(bounds));
end = CGPointMake(CGRectGetMidX(bounds), CGRectGetMaxY(bounds));
}
CGContextDrawLinearGradient(context, gradient, start, end, 0);
CGColorSpaceRelease(rgb);
CGGradientRelease(gradient);
// Draw borders.
float borderThickness = 1.0;
[[UIColor colorWithWhite:0.7 alpha:1.0] set];
CGRect borderRect = bounds;
if (splitViewController.vertical) {
borderRect.size.width = borderThickness;
UIRectFill(borderRect);
borderRect.origin.x = CGRectGetMaxX(bounds) - borderThickness;
UIRectFill(borderRect);
} else {
borderRect.size.height = borderThickness;
UIRectFill(borderRect);
borderRect.origin.y = CGRectGetMaxY(bounds) - borderThickness;
UIRectFill(borderRect);
}
// Draw grip.
[self drawGripThumbInRect:bounds];
}
}
- (void)drawGripThumbInRect:(CGRect)rect
{
float width = 9.0;
float height;
if (splitViewController.vertical) {
height = 30.0;
} else {
height = width;
width = 30.0;
}
// Draw grip in centred in rect.
CGRect gripRect = CGRectMake(0, 0, width, height);
gripRect.origin.x = ((rect.size.width - gripRect.size.width) / 2.0);
gripRect.origin.y = ((rect.size.height - gripRect.size.height) / 2.0);
float stripThickness = 1.0;
UIColor *stripColor = [UIColor colorWithWhite:0.35 alpha:1.0];
UIColor *lightColor = [UIColor colorWithWhite:1.0 alpha:1.0];
float space = 3.0;
if (splitViewController.vertical) {
gripRect.size.width = stripThickness;
[stripColor set];
UIRectFill(gripRect);
gripRect.origin.x += stripThickness;
gripRect.origin.y += 1;
[lightColor set];
UIRectFill(gripRect);
gripRect.origin.x -= stripThickness;
gripRect.origin.y -= 1;
gripRect.origin.x += space + stripThickness;
[stripColor set];
UIRectFill(gripRect);
gripRect.origin.x += stripThickness;
gripRect.origin.y += 1;
[lightColor set];
UIRectFill(gripRect);
gripRect.origin.x -= stripThickness;
gripRect.origin.y -= 1;
gripRect.origin.x += space + stripThickness;
[stripColor set];
UIRectFill(gripRect);
gripRect.origin.x += stripThickness;
gripRect.origin.y += 1;
[lightColor set];
UIRectFill(gripRect);
} else {
gripRect.size.height = stripThickness;
[stripColor set];
UIRectFill(gripRect);
gripRect.origin.y += stripThickness;
gripRect.origin.x -= 1;
[lightColor set];
UIRectFill(gripRect);
gripRect.origin.y -= stripThickness;
gripRect.origin.x += 1;
gripRect.origin.y += space + stripThickness;
[stripColor set];
UIRectFill(gripRect);
gripRect.origin.y += stripThickness;
gripRect.origin.x -= 1;
[lightColor set];
UIRectFill(gripRect);
gripRect.origin.y -= stripThickness;
gripRect.origin.x += 1;
gripRect.origin.y += space + stripThickness;
[stripColor set];
UIRectFill(gripRect);
gripRect.origin.y += stripThickness;
gripRect.origin.x -= 1;
[lightColor set];
UIRectFill(gripRect);
}
}
#pragma mark -
#pragma mark Interaction
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [touches anyObject];
if (touch) {
CGPoint lastPt = [touch previousLocationInView:self];
CGPoint pt = [touch locationInView:self];
float offset = (splitViewController.vertical) ? pt.x - lastPt.x : pt.y - lastPt.y;
if (!splitViewController.masterBeforeDetail) {
offset = -offset;
}
splitViewController.splitPosition = splitViewController.splitPosition + offset;
}
}
#pragma mark -
#pragma mark Accessors and properties
- (void)setAllowsDragging:(BOOL)flag
{
if (flag != allowsDragging) {
allowsDragging = flag;
self.userInteractionEnabled = allowsDragging;
}
}
@synthesize splitViewController;
@synthesize allowsDragging;
@end
Jump to Line
Something went wrong with that request. Please try again.