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-rw-r--r--tikzit/src/gtk/CairoRenderContext.m344
1 files changed, 0 insertions, 344 deletions
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 <alex.merry@kdemail.net>
- *
- * 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 <http://www.gnu.org/licenses/>.
- */
-
-#import "CairoRenderContext.h"
-
-#import "cairo_helpers.h"
-#import "util.h"
-
-#import <pango/pangocairo.h>
-
-@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<TextLayout>) 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
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