mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-12-26 05:57:00 +03:00
64 lines
2.2 KiB
Objective-C
64 lines
2.2 KiB
Objective-C
/*
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* Copyright 2011 Sven Weidauer <sven.weidauer@gmail.com>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf 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; version 2 of the License.
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*
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* NetSurf 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 should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#import <Cocoa/Cocoa.h>
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#import "desktop/browser.h"
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#import "desktop/plotters.h"
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#import "desktop/thumbnail.h"
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#import "content/urldb.h"
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#import "image/bitmap.h"
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/* In platform specific thumbnail.c. */
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bool thumbnail_create(struct hlcache_handle *content, struct bitmap *bitmap,
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const char *url)
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{
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int bwidth = bitmap_get_width( bitmap );
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int bheight = bitmap_get_height( bitmap );
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CGColorSpaceRef cspace = CGColorSpaceCreateWithName( kCGColorSpaceGenericRGB );
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CGContextRef bitmapContext = CGBitmapContextCreate( bitmap_get_buffer( bitmap ),
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bwidth, bheight,
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bitmap_get_bpp( bitmap ) * 8 / 4,
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bitmap_get_rowstride( bitmap ),
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cspace, kCGImageAlphaNoneSkipLast );
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CGColorSpaceRelease( cspace );
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size_t width = MIN( content_get_width( content ), 1024 );
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size_t height = ((width * bheight) + bwidth / 2) / bwidth;
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CGContextTranslateCTM( bitmapContext, 0, bheight );
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CGContextScaleCTM( bitmapContext, (CGFloat)bwidth / width, -(CGFloat)bheight / height );
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[NSGraphicsContext setCurrentContext: [NSGraphicsContext graphicsContextWithGraphicsPort: bitmapContext flipped: YES]];
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/* todo: ??? set plot scale according to the scale the thumbnail will be
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* rendered at, by calling thumbnail_get_redraw_scale(). ??? */
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thumbnail_redraw( content, width, height );
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[NSGraphicsContext setCurrentContext: nil];
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CGContextRelease( bitmapContext );
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bitmap_modified( bitmap );
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if (NULL != url) urldb_set_thumbnail( url, bitmap );
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return true;
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}
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