mirror of
https://github.com/cappuccino/cappuccino.git
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Francisco Ryan Tolmasky I
52f7844aee
Also changed a bunch of <AppKit/*> imports to "*" imports. Reviewed by me.
108 lines
3.5 KiB
Plaintext
108 lines
3.5 KiB
Plaintext
/*
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* CPGraphics.j
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* AppKit
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*
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* Created by Francisco Tolmasky.
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* Copyright 2010, 280 North, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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@import "CPColor.j"
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@import "CPGraphicsContext.j"
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function CPDrawTiledRects(
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/* CGRect */ boundsRect,
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/* CGRect */ clipRect,
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/* CPRectEdge[] */ sides,
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/* float[] */ grays)
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{
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if (sides.length != grays.length)
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[CPException raise:CPInvalidArgumentException reason:@"sides (length: " + sides.length + ") and grays (length: " + grays.length + ") must have the same length."];
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var colors = [];
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for (var i = 0; i < grays.length; ++i)
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colors.push([CPColor colorWithCalibratedWhite:grays[i] alpha:1.0]);
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return CPDrawColorTiledRects(boundsRect, clipRect, sides, colors);
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}
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function CPDrawColorTiledRects(
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/* CGRect */ boundsRect,
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/* CGRect */ clipRect,
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/* CPRectEdge[] */ sides,
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/* CPColor[] */ colors)
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{
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if (sides.length != colors.length)
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[CPException raise:CPInvalidArgumentException reason:@"sides (length: " + sides.length + ") and colors (length: " + colors.length + ") must have the same length."];
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var resultRect = _CGRectMakeCopy(boundsRect),
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slice = _CGRectMakeZero(),
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remainder = _CGRectMakeZero(),
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context = [[CPGraphicsContext currentContext] graphicsPort];
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CGContextSaveGState(context);
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CGContextSetLineWidth(context, 1.0);
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for (var sideIndex = 0; sideIndex < sides.length; ++sideIndex)
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{
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var side = sides[sideIndex];
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CGRectDivide(resultRect, slice, remainder, 1.0, side);
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resultRect = remainder;
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slice = CGRectIntersection(slice, clipRect);
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// Cocoa docs say that only slices that are within the clipRect are actually drawn
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if (_CGRectIsEmpty(slice))
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continue;
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var minX, maxX, minY, maxY;
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if (side == CPMinXEdge || side == CPMaxXEdge)
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{
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// Make sure we have at least 1 pixel to draw a line
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if (_CGRectGetWidth(slice) < 1.0)
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continue;
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minX = _CGRectGetMinX(slice) + 0.5;
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maxX = minX;
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minY = _CGRectGetMinY(slice);
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maxY = _CGRectGetMaxY(slice);
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}
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else // CPMinYEdge || CPMaxYEdge
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{
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// Make sure we have at least 1 pixel to draw a line
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if (_CGRectGetHeight(slice) < 1.0)
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continue;
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minX = _CGRectGetMinX(slice);
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maxX = _CGRectGetMaxX(slice);
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minY = _CGRectGetMinY(slice) + 0.5;
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maxY = minY;
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}
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CGContextBeginPath(context);
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CGContextMoveToPoint(context, minX, minY);
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CGContextAddLineToPoint(context, maxX, maxY);
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CGContextSetStrokeColor(context, colors[sideIndex]);
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CGContextStrokePath(context);
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}
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CGContextRestoreGState(context);
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return resultRect;
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} |