From 1802977b95d29198f27535b1b731d1180c083667 Mon Sep 17 00:00:00 2001 From: Aleks Kissinger Date: Wed, 11 Jan 2017 16:33:00 +0100 Subject: made new subdir --- tikzit/src/gtk/CairoRenderContext.m | 344 ------------------------------------ 1 file changed, 344 deletions(-) delete mode 100644 tikzit/src/gtk/CairoRenderContext.m (limited to 'tikzit/src/gtk/CairoRenderContext.m') diff --git a/tikzit/src/gtk/CairoRenderContext.m b/tikzit/src/gtk/CairoRenderContext.m deleted file mode 100644 index 77e10b5..0000000 --- a/tikzit/src/gtk/CairoRenderContext.m +++ /dev/null @@ -1,344 +0,0 @@ -/* - * Copyright 2011 Alex Merry - * - * This program 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; either version 2 of - * the License, or (at your option) any later version. - * - * This program 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 . - */ - -#import "CairoRenderContext.h" - -#import "cairo_helpers.h" -#import "util.h" - -#import - -@implementation PangoTextLayout - -- (id) init { - [self release]; - return nil; -} - -+ (PangoTextLayout*) layoutForContext:(cairo_t*)cr withFontSize:(CGFloat)fontSize { - return [[[self alloc] initWithContext:cr fontSize:fontSize] autorelease]; -} - -- (id) initWithContext:(cairo_t*)cr fontSize:(CGFloat)fontSize { - self = [super init]; - - if (self) { - cairo_reference (cr); - context = cr; - layout = pango_cairo_create_layout (cr); - - PangoFontDescription *font_desc = pango_font_description_new (); - pango_font_description_set_family_static (font_desc, "Sans"); - pango_font_description_set_size (font_desc, pango_units_from_double (fontSize)); - pango_layout_set_font_description (layout, font_desc); - pango_font_description_free (font_desc); - } - - return self; -} - -- (void) setText:(NSString*)text { - pango_layout_set_text (layout, [text UTF8String], -1); -} - -- (NSSize) size { - int width, height; - pango_layout_get_size (layout, &width, &height); - return NSMakeSize (pango_units_to_double (width), pango_units_to_double (height)); -} - -- (NSString*) text { - return [NSString stringWithUTF8String:pango_layout_get_text (layout)]; -} - -- (void) showTextAt:(NSPoint)topLeft withColor:(RColor)color { - cairo_save (context); - - cairo_move_to(context, topLeft.x, topLeft.y); - cairo_set_source_rcolor (context, color); - pango_cairo_show_layout (context, layout); - - cairo_restore (context); -} - -- (void) dealloc { - if (layout) - g_object_unref (G_OBJECT (layout)); - if (context) - cairo_destroy (context); - - [super dealloc]; -} - -@end - -@implementation CairoRenderContext - -- (id) init { - [self release]; - return nil; -} - -+ (CairoRenderContext*) contextForSurface:(cairo_surface_t*)surface { - return [[[self alloc] initForSurface:surface] autorelease]; -} - -- (id) initForSurface:(cairo_surface_t*)surface { - self = [super init]; - - if (self) { - context = cairo_create (surface); - } - - return self; -} - -+ (CairoRenderContext*) contextForWidget:(GtkWidget*)widget { - return [[[self alloc] initForWidget:widget] autorelease]; -} - -- (id) initForWidget:(GtkWidget*)widget { - self = [super init]; - - if (self) { - GdkWindow *window = gtk_widget_get_window (widget); - if (window) { - context = gdk_cairo_create (window); - } else { - [self release]; - self = nil; - } - } - - return self; -} - -+ (CairoRenderContext*) contextForDrawable:(GdkDrawable*)d { - return [[[self alloc] initForDrawable:d] autorelease]; -} - -- (id) initForDrawable:(GdkDrawable*)d { - self = [super init]; - - if (self) { - context = gdk_cairo_create (d); - } - - return self; -} - -+ (CairoRenderContext*) contextForPixbuf:(GdkPixbuf*)pixbuf { - return [[[self alloc] initForPixbuf:pixbuf] autorelease]; -} - -- (id) initForPixbuf:(GdkPixbuf*)pixbuf { - self = [super init]; - - if (self) { - cairo_format_t format = -1; - - if (gdk_pixbuf_get_colorspace (pixbuf) != GDK_COLORSPACE_RGB) { - NSLog(@"Unsupported colorspace (must be RGB)"); - [self release]; - return nil; - } - if (gdk_pixbuf_get_bits_per_sample (pixbuf) != 8) { - NSLog(@"Unsupported bits per sample (must be 8)"); - [self release]; - return nil; - } - if (gdk_pixbuf_get_has_alpha (pixbuf)) { - if (gdk_pixbuf_get_n_channels (pixbuf) != 4) { - NSLog(@"Unsupported bits per sample (must be 4 for an image with alpha)"); - [self release]; - return nil; - } - format = CAIRO_FORMAT_ARGB32; - } else { - if (gdk_pixbuf_get_n_channels (pixbuf) != 3) { - NSLog(@"Unsupported bits per sample (must be 3 for an image without alpha)"); - [self release]; - return nil; - } - format = CAIRO_FORMAT_RGB24; - } - - cairo_surface_t *surface = cairo_image_surface_create_for_data( - gdk_pixbuf_get_pixels(pixbuf), - format, - gdk_pixbuf_get_width(pixbuf), - gdk_pixbuf_get_height(pixbuf), - gdk_pixbuf_get_rowstride(pixbuf)); - context = cairo_create (surface); - cairo_surface_destroy (surface); - } - - return self; -} - -- (cairo_t*) cairoContext { - return context; -} - -- (void) applyTransform:(Transformer*)transformer { - NSPoint origin = [transformer toScreen:NSZeroPoint]; - cairo_translate (context, origin.x, origin.y); - NSPoint scale = [transformer toScreen:NSMakePoint (1.0f, 1.0f)]; - scale.x -= origin.x; - scale.y -= origin.y; - cairo_scale (context, scale.x, scale.y); -} - -- (void) saveState { - cairo_save (context); -} - -- (void) restoreState { - cairo_restore (context); -} - -- (NSRect) clipBoundingBox { - double clipx1, clipx2, clipy1, clipy2; - cairo_clip_extents (context, &clipx1, &clipy1, &clipx2, &clipy2); - return NSMakeRect (clipx1, clipy1, clipx2-clipx1, clipy2-clipy1); -} - -- (BOOL) strokeIncludesPoint:(NSPoint)p { - return cairo_in_stroke (context, p.x, p.y); -} - -- (BOOL) fillIncludesPoint:(NSPoint)p { - return cairo_in_fill (context, p.x, p.y); -} - -- (id) layoutText:(NSString*)text withSize:(CGFloat)fontSize { - PangoTextLayout *layout = [PangoTextLayout layoutForContext:context withFontSize:fontSize]; - [layout setText:text]; - return layout; -} - -- (void) setAntialiasMode:(AntialiasMode)mode { - if (mode == AntialiasDisabled) { - cairo_set_antialias (context, CAIRO_ANTIALIAS_NONE); - } else { - cairo_set_antialias (context, CAIRO_ANTIALIAS_DEFAULT); - } -} - -- (void) setLineWidth:(CGFloat)width { - cairo_set_line_width (context, width); -} - -- (void) setLineDash:(CGFloat)dashLength { - if (dashLength <= 0.0) { - cairo_set_dash (context, NULL, 0, 0); - } else { - double dashes[] = { dashLength }; - cairo_set_dash (context, dashes, 1, 0); - } -} - -// paths -- (void) startPath { - cairo_new_path (context); -} - -- (void) closeSubPath { - cairo_close_path (context); -} - -- (void) moveTo:(NSPoint)p { - cairo_move_to(context, p.x, p.y); -} - -- (void) curveTo:(NSPoint)end withCp1:(NSPoint)cp1 andCp2:(NSPoint)cp2 { - cairo_curve_to (context, cp1.x, cp1.y, cp2.x, cp2.y, end.x, end.y); -} - -- (void) lineTo:(NSPoint)end { - cairo_line_to (context, end.x, end.y); -} - -- (void) rect:(NSRect)rect { - cairo_rectangle (context, rect.origin.x, rect.origin.y, rect.size.width, rect.size.height); -} - -- (void) circleAt:(NSPoint)c withRadius:(CGFloat)r { - cairo_new_sub_path (context); - cairo_arc (context, c.x, c.y, r, 0, 2 * M_PI); -} - -- (void) strokePathWithColor:(RColor)color { - cairo_set_source_rcolor (context, color); - cairo_stroke (context); -} - -- (void) fillPathWithColor:(RColor)color { - cairo_set_source_rcolor (context, color); - cairo_fill (context); -} - -- (void) strokePathWithColor:(RColor)scolor - andFillWithColor:(RColor)fcolor { - cairo_set_source_rcolor (context, fcolor); - cairo_fill_preserve (context); - cairo_set_source_rcolor (context, scolor); - cairo_stroke (context); -} - -- (void) strokePathWithColor:(RColor)scolor - andFillWithColor:(RColor)fcolor - usingAlpha:(CGFloat)alpha { - cairo_push_group (context); - cairo_set_source_rcolor (context, fcolor); - cairo_fill_preserve (context); - cairo_set_source_rcolor (context, scolor); - cairo_stroke (context); - cairo_pop_group_to_source (context); - cairo_paint_with_alpha (context, alpha); -} - -- (void) clipToPath { - cairo_clip (context); -} - -- (void) paintWithColor:(RColor)color { - cairo_set_source_rcolor (context, color); - cairo_paint (context); -} - -- (void) clearSurface { - cairo_operator_t old_op = cairo_get_operator (context); - - cairo_set_operator (context, CAIRO_OPERATOR_SOURCE); - cairo_set_source_rgba (context, 0.0, 0.0, 0.0, 0.0); - cairo_paint (context); - - cairo_set_operator (context, old_op); -} - -- (void) dealloc { - if (context) { - cairo_destroy (context); - } - - [super dealloc]; -} - -@end - -// vim:ft=objc:ts=8:et:sts=4:sw=4 -- cgit v1.2.3