99 lines
2.6 KiB
Objective-C
99 lines
2.6 KiB
Objective-C
//==============================================================================
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// This file is part of Master Password.
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// Copyright (c) 2011-2017, Maarten Billemont.
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//
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// Master Password is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Master Password is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You can find a copy of the GNU General Public License in the
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// LICENSE file. Alternatively, see <http://www.gnu.org/licenses/>.
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//==============================================================================
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#import "MPGradientView.h"
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@interface MPGradientView()
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@property(nonatomic, strong) NSGradient *gradient;
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@end
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@implementation MPGradientView
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- (id)initWithFrame:(NSRect)frame {
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if (!(self = [super initWithFrame:frame]))
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return nil;
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[self defaults];
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return self;
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}
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- (instancetype)initWithCoder:(NSCoder *)coder {
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if (!(self = [super initWithCoder:coder]))
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return nil;
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[self defaults];
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return self;
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}
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- (void)defaults {
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self.startingColor = [NSColor colorWithCalibratedWhite:0.0 alpha:0.0];
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self.endingColor = [NSColor colorWithCalibratedWhite:0.0 alpha:1.0];
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self.angle = 270;
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self.ratio = 0.5f;
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}
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- (void)setStartingColor:(NSColor *)startingColor {
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_startingColor = startingColor;
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self.gradient = nil;
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[self setNeedsDisplay:YES];
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}
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- (void)setEndingColor:(NSColor *)endingColor {
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_endingColor = endingColor;
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self.gradient = nil;
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[self setNeedsDisplay:YES];
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}
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- (void)setAngle:(NSInteger)angle {
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_angle = angle;
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self.gradient = nil;
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[self setNeedsDisplay:YES];
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}
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- (void)setRatio:(CGFloat)ratio {
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_ratio = ratio;
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self.gradient = nil;
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[self setNeedsDisplay:YES];
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}
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- (void)drawRect:(NSRect)dirtyRect {
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if (!self.startingColor || !self.endingColor || [self.startingColor isEqual:self.endingColor]) {
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[(self.startingColor?: self.endingColor) set];
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NSRectFill( dirtyRect );
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return;
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}
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[(self.gradient?: (self.gradient = [[NSGradient alloc] initWithColorsAndLocations:
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self.startingColor, (CGFloat)0.f,
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[self.startingColor blendedColorWithFraction:0.5f ofColor:self.endingColor], self.ratio,
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self.endingColor, (CGFloat)1.f, nil]))
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drawInRect:self.bounds angle:self.angle];
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}
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@end
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