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//
// MSplitView.m
// MySQLGUICommon
//
// Created by Alfredo Kojima on 5/6/05.
// Copyright 2005 MySQL AB. All rights reserved.
//
#import "MSplitView.h"
static void blendFunction(void *info, const float *in, float *out)
{
float *fromColors= (float*)info;
float *toColors= (float*)info + 4;
out[0] = (1.0 - *in) * fromColors[0] + *in * toColors[0];
out[1] = (1.0 - *in) * fromColors[1] + *in * toColors[1];
out[2] = (1.0 - *in) * fromColors[2] + *in * toColors[2];
out[3] = (1.0 - *in) * fromColors[3] + *in * toColors[3];
}
static const CGFunctionCallbacks blendCallbacks = {0, &blendFunction, &free};
static const float domainAndRange[8] = {0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0};
@implementation MSplitView
- (void)dealloc
{
[_inactiveColor release];
[super dealloc];
}
- (float)dividerThickness
{
if (_thickness > 0.0)
return _thickness;
else
return [super dividerThickness];
}
- (void)drawDividerInRect:(NSRect)aRect
{
if (_thickness < 4.0)
{
NSRect topR, botR;
NSDivideRect(aRect,&topR,&botR,1.0,NSMaxYEdge);
[[NSColor lightGrayColor] set];
NSRectFill(botR);
[[NSColor darkGrayColor] set];
NSRectFill(topR);
}
else if (_dividerColor)
{
CGContextRef context = [[NSGraphicsContext currentContext] graphicsPort];
CGColorSpaceRef colorSpace= CGColorSpaceCreateDeviceRGB();
float hue, saturation, brightness, alpha;
[[_dividerColor colorUsingColorSpaceName:NSDeviceRGBColorSpace] getHue:&hue saturation:&saturation brightness:&brightness alpha:&alpha];
float *colors= malloc(sizeof(float)*6);
NSColor *light = [NSColor colorWithDeviceHue:hue saturation:MAX(0.0, saturation-0.1) brightness:MIN(1.0, brightness+0.1) alpha:alpha];
NSColor *dark = [NSColor colorWithDeviceHue:hue saturation:MIN(1.0, (saturation > 0.04) ? saturation+0.10 : 0.0) brightness:brightness alpha:alpha];
[[light colorUsingColorSpaceName:NSDeviceRGBColorSpace] getRed:colors+0 green:colors+1 blue:colors+2 alpha:colors+3];
[[dark colorUsingColorSpaceName:NSDeviceRGBColorSpace] getRed:colors+4 green:colors+5 blue:colors+6 alpha:colors+7];
CGFunctionRef functionRef = CGFunctionCreate(colors, 1, domainAndRange, 4, domainAndRange, &blendCallbacks);
CGContextSaveGState(context);
{
CGRect crect= {{NSMinX(aRect), NSMinY(aRect)+1.0}, {NSWidth(aRect), NSHeight(aRect)-1.0}};
CGContextClipToRect(context, crect);
CGShadingRef shade;
if ([self isVertical])
shade= CGShadingCreateAxial(colorSpace,
CGPointMake(NSMinX(aRect), 0),
CGPointMake(NSMaxX(aRect), 0),
functionRef, NO, NO);
else
shade= CGShadingCreateAxial(colorSpace,
CGPointMake(0, NSMinY(aRect)),
CGPointMake(0, NSMaxY(aRect)),
functionRef, NO, NO);
CGContextDrawShading(context, shade);
CGShadingRelease(shade);
}
CGContextRestoreGState(context);
CGFunctionRelease(functionRef);
CGColorSpaceRelease(colorSpace);
[super drawDividerInRect:aRect];
}
else
[super drawDividerInRect:aRect];
}
- (void)setDividerThickness:(float)value
{
_thickness= value;
}
- (void)setDividerColor:(NSColor*)color
{
if (_dividerColor != color)
{
[_dividerColor release];
_dividerColor= [color retain];
}
}
- (void)setActive:(BOOL)active
{
_active= active;
}
- (void)setInactiveColor:(NSColor*)color
{
if (_inactiveColor != color)
{
[_inactiveColor release];
_inactiveColor= [color retain];
}
}
- (void)drawRect:(NSRect)aRect
{
if (_inactiveColor)
{
if (_active)
[[NSColor whiteColor] set];
else
[_inactiveColor set];
NSRectFill(aRect);
}
[super drawRect:aRect];
}
- (void)resizeSubview:(id)view toSize:(float)size
{
NSArray *subviews= [self subviews];
NSMutableArray *ratios= [NSMutableArray arrayWithCapacity:[subviews count]];
unsigned int i, c= [subviews count];
float s, offs, totalSize;
float divThick= [self dividerThickness];
float leftOver;
totalSize= 0.0;
// 1st calculate how much space are the subviews using relative to each other
for (i= 0; i < c; i++)
{
id subview= [subviews objectAtIndex:i];
float t;
if (![self isVertical])
t= NSHeight([subview frame]);
else
t= NSWidth([subview frame]);
totalSize+= t;
}
totalSize+= (c-1)*divThick;
for (i= 0; i < c; i++)
{
id subview= [subviews objectAtIndex:i];
float t;
if (![self isVertical])
t= NSHeight([subview frame]);
else
t= NSWidth([subview frame]);
[ratios addObject:[NSNumber numberWithFloat:t/totalSize]];
}
if (size > totalSize)
size= totalSize;
leftOver= totalSize - size;
offs= 0.0;
// then resize all subviews
for (i= 0; i < c; i++)
{
id subview= [subviews objectAtIndex:i];
NSRect f= [subview frame];
s= [[ratios objectAtIndex:i] floatValue] * totalSize;
if (subview == view)
{
if (![self isVertical])
{
f.origin.y= offs;
f.size.height= size;
}
else
{
f.origin.x= offs;
f.size.width= size;
}
}
else
{
if (![self isVertical])
{
f.origin.y= offs;
f.size.height= s;
}
else
{
f.origin.x= offs;
f.size.width= s;
}
}
[subview setFrame:f];
offs+= s + divThick;
}
[self setNeedsDisplay:YES];
}
@end
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