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Diffstat (limited to 'frontends/cocoa/plotter.m')
-rw-r--r-- | frontends/cocoa/plotter.m | 335 |
1 files changed, 0 insertions, 335 deletions
diff --git a/frontends/cocoa/plotter.m b/frontends/cocoa/plotter.m deleted file mode 100644 index dea3245bb..000000000 --- a/frontends/cocoa/plotter.m +++ /dev/null @@ -1,335 +0,0 @@ -/* - * Copyright 2011 Sven Weidauer <sven.weidauer@gmail.com> - * - * This file is part of NetSurf, http://www.netsurf-browser.org/ - * - * NetSurf is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * NetSurf is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include <Cocoa/Cocoa.h> - -#import "utils/log.h" -#import "utils/utils.h" -#import "netsurf/browser_window.h" -#import "netsurf/plotters.h" - -#import "cocoa/font.h" -#import "cocoa/coordinates.h" -#import "cocoa/plotter.h" -#import "cocoa/bitmap.h" - -static void cocoa_plot_render_path(NSBezierPath *path,const plot_style_t *pstyle); -static void cocoa_plot_path_set_stroke_pattern(NSBezierPath *path,const plot_style_t *pstyle); -static inline void cocoa_center_pixel( bool x, bool y ); - -static NSRect cocoa_plot_clip_rect; - -#define colour_red_component( c ) (((c) >> 0) & 0xFF) -#define colour_green_component( c ) (((c) >> 8) & 0xFF) -#define colour_blue_component( c ) (((c) >> 16) & 0xFF) -#define colour_alpha_component( c ) (((c) >> 24) & 0xFF) -#define colour_from_rgba( r, g, b, a) ((((colour)(r)) << 0) | \ - (((colour)(g)) << 8) | \ - (((colour)(b)) << 16) | \ - (((colour)(a)) << 24)) -#define colour_from_rgb( r, g, b ) colour_from_rgba( (r), (g), (b), 0xFF ) - -NSColor *cocoa_convert_colour( colour clr ) -{ - return [NSColor colorWithDeviceRed: (float)colour_red_component( clr ) / 0xFF - green: (float)colour_green_component( clr ) / 0xFF - blue: (float)colour_blue_component( clr ) / 0xFF - alpha: 1.0]; -} - -static void cocoa_plot_path_set_stroke_pattern(NSBezierPath *path,const plot_style_t *pstyle) -{ - static const CGFloat dashed_pattern[2] = { 5.0, 2.0 }; - static const CGFloat dotted_pattern[2] = { 2.0, 2.0 }; - - switch (pstyle->stroke_type) { - case PLOT_OP_TYPE_DASH: - [path setLineDash: dashed_pattern count: 2 phase: 0]; - break; - - case PLOT_OP_TYPE_DOT: - [path setLineDash: dotted_pattern count: 2 phase: 0]; - break; - - default: - // ignore - break; - } - - [path setLineWidth: cocoa_px_to_pt( pstyle->stroke_width > 0 ? pstyle->stroke_width : 1 )]; -} - -static bool plot_line(int x0, int y0, int x1, int y1, const plot_style_t *pstyle) -{ - if (pstyle->stroke_type == PLOT_OP_TYPE_NONE) return true; - - [NSGraphicsContext saveGraphicsState]; - [NSBezierPath clipRect: cocoa_plot_clip_rect]; - - NSBezierPath *path = [NSBezierPath bezierPath]; - [path moveToPoint: cocoa_point( x0, y0 )]; - [path lineToPoint: cocoa_point( x1, y1 )]; - cocoa_plot_path_set_stroke_pattern( path, pstyle ); - - const bool horizontal = y0 == y1; - const bool vertical = x0 == x1; - const bool oddThickness = pstyle->stroke_width != 0 ? (pstyle->stroke_width % 2) != 0 : true; - - if (oddThickness) cocoa_center_pixel( !horizontal, !vertical ); - - [cocoa_convert_colour( pstyle->stroke_colour ) set]; - [path stroke]; - - [NSGraphicsContext restoreGraphicsState]; - - return true; -} - -static bool plot_rectangle(int x0, int y0, int x1, int y1, const plot_style_t *pstyle) -{ - NSRect rect = cocoa_rect( x0, y0, x1, y1 ); - NSBezierPath *path = [NSBezierPath bezierPathWithRect: rect]; - cocoa_plot_render_path( path, pstyle ); - - return true; -} - -static bool plot_text(int x, int y, const char *text, size_t length, - const plot_font_style_t *fstyle) -{ - [NSGraphicsContext saveGraphicsState]; - [NSBezierPath clipRect: cocoa_plot_clip_rect]; - - cocoa_draw_string( cocoa_px_to_pt( x ), cocoa_px_to_pt( y ), text, length, fstyle ); - - [NSGraphicsContext restoreGraphicsState]; - - return true; -} - -void cocoa_set_clip( NSRect rect ) -{ - cocoa_plot_clip_rect = rect; -} - -static bool plot_clip(const struct rect *clip) -{ - cocoa_plot_clip_rect = cocoa_rect( clip->x0, clip->y0, clip->x1, clip->y1 ); - return true; -} - -void cocoa_plot_render_path(NSBezierPath *path,const plot_style_t *pstyle) -{ - [NSGraphicsContext saveGraphicsState]; - [NSBezierPath clipRect: cocoa_plot_clip_rect]; - - if (pstyle->fill_type != PLOT_OP_TYPE_NONE) { - [cocoa_convert_colour( pstyle->fill_colour ) setFill]; - [path fill]; - } - - if (pstyle->stroke_type != PLOT_OP_TYPE_NONE) { - if (pstyle->stroke_width == 0 || pstyle->stroke_width % 2 != 0) cocoa_center_pixel( true, true ); - - cocoa_plot_path_set_stroke_pattern(path,pstyle); - - [cocoa_convert_colour( pstyle->stroke_colour ) set]; - - [path stroke]; - } - - [NSGraphicsContext restoreGraphicsState]; -} - -static bool plot_arc(int x, int y, int radius, int angle1, int angle2, const plot_style_t *pstyle) -{ - NSBezierPath *path = [NSBezierPath bezierPath]; - [path appendBezierPathWithArcWithCenter: NSMakePoint( x, y ) radius: radius - startAngle: angle1 endAngle: angle2 - clockwise: NO]; - - cocoa_plot_render_path( path, pstyle); - - return true; -} - -static bool plot_disc(int x, int y, int radius, const plot_style_t *pstyle) -{ - NSBezierPath *path = [NSBezierPath bezierPathWithOvalInRect: - NSMakeRect( x - radius, y-radius, 2*radius, 2*radius )]; - - cocoa_plot_render_path( path, pstyle ); - - return true; -} - -static bool plot_polygon(const int *p, unsigned int n, const plot_style_t *pstyle) -{ - if (n <= 1) return true; - - NSBezierPath *path = [NSBezierPath bezierPath]; - [path moveToPoint: cocoa_point( p[0], p[1] )]; - for (unsigned i = 1; i < n; i++) { - [path lineToPoint: cocoa_point( p[2*i], p[2*i+1] )]; - } - [path closePath]; - - cocoa_plot_render_path( path, pstyle ); - - return true; -} - -/* complex path (for SVG) */ -static bool plot_path(const float *p, unsigned int n, colour fill, float width, - colour c, const float transform[6]) -{ - if (n == 0) return true; - - if (*p != PLOTTER_PATH_MOVE) { - LOG("Path does not start with move"); - return false; - } - - NSBezierPath *path = [NSBezierPath bezierPath]; - -#define NEXT_POINT() NSMakePoint( *p++, *p++ ) - - while (n--) { - switch ((int)*p++) { - case PLOTTER_PATH_MOVE: { - const NSPoint pt = NEXT_POINT(); - [path moveToPoint: pt]; - break; - } - - case PLOTTER_PATH_LINE: { - const NSPoint pt = NEXT_POINT(); - [path lineToPoint: pt]; - break; - } - - case PLOTTER_PATH_BEZIER: { - const NSPoint cp1 = NEXT_POINT(); - const NSPoint cp2 = NEXT_POINT(); - const NSPoint ep = NEXT_POINT(); - [path curveToPoint: ep controlPoint1: cp1 controlPoint2: cp2]; - break; - } - - case PLOTTER_PATH_CLOSE: - [path closePath]; - break; - - default: - LOG("Invalid path"); - return false; - } - } - -#undef NEXT_POINT - - [path setLineWidth: width]; - - CGContextRef context = [[NSGraphicsContext currentContext] graphicsPort]; - CGContextSaveGState( context ); - - CGContextClipToRect( context, NSRectToCGRect( cocoa_plot_clip_rect ) ); - - CGContextConcatCTM( context, CGAffineTransformMake( transform[0], transform[1], transform[2], - transform[3], transform[4], transform[5] ) ); - - if (fill != NS_TRANSPARENT) { - [cocoa_convert_colour( fill ) setFill]; - [path fill]; - } - - if (c != NS_TRANSPARENT) { - cocoa_center_pixel( true, true ); - [cocoa_convert_colour( c ) set]; - [path stroke]; - } - - CGContextRestoreGState( context ); - - return true; -} - -/* Image */ -static bool plot_bitmap(int x, int y, int width, int height, - struct bitmap *bitmap, colour bg, - bitmap_flags_t flags) -{ - CGContextRef context = [[NSGraphicsContext currentContext] graphicsPort]; - CGContextSaveGState( context ); - - CGContextClipToRect( context, NSRectToCGRect( cocoa_plot_clip_rect ) ); - - const bool tileX = flags & BITMAPF_REPEAT_X; - const bool tileY = flags & BITMAPF_REPEAT_Y; - - CGImageRef img = cocoa_get_cgimage( bitmap ); - - CGRect rect = NSRectToCGRect( cocoa_rect_wh( x, y, width, height ) ); - - if (tileX || tileY) { - CGContextDrawTiledImage( context, rect, img ); - } else { - CGContextDrawImage( context, rect, img ); - } - - CGContextRestoreGState( context ); - - return true; -} - -const struct plotter_table cocoa_plotters = { - .clip = plot_clip, - .arc = plot_arc, - .disc = plot_disc, - .rectangle = plot_rectangle, - .line = plot_line, - .polygon = plot_polygon, - - .path = plot_path, - - .bitmap = plot_bitmap, - - .text = plot_text, - - .option_knockout = true -}; - - -CGFloat cocoa_scale_factor; -static const CGFloat points_per_inch = 72.0; -static CGFloat cocoa_half_pixel; - -void cocoa_update_scale_factor( void ) -{ - const CGFloat scale = [[NSScreen mainScreen] userSpaceScaleFactor]; - cocoa_scale_factor = scale == 1.0 ? 1.0 : 1.0 / scale; - cocoa_half_pixel = 0.5 * cocoa_scale_factor; - browser_set_dpi( points_per_inch * scale ); -} - -static inline void cocoa_center_pixel( bool x, bool y ) -{ - NSAffineTransform *transform = [NSAffineTransform transform]; - [transform translateXBy: x ? cocoa_half_pixel : 0.0 yBy: y ? cocoa_half_pixel : 0.0]; - [transform concat]; -} |