gtk/gdk/quartz/gdkdrawable-quartz.c
Richard Hult 7deea61cbf Add check for source being a window.
2006-04-16  Richard Hult  <richard@imendio.com>

	* gdk/quartz/gdkdrawable-quartz.c: (gdk_quartz_draw_drawable): Add check
	for source being a window.

	* gdk/quartz/gdkwindow-quartz.c: (_gdk_windowing_window_get_pointer):
	Don't assert on window not being the root window.
2006-04-16 20:13:13 +00:00

674 lines
18 KiB
C

/* gdkdrawable-quartz.c
*
* Copyright (C) 2005, 2006 Imendio AB
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include <cairo-quartz.h>
#include "gdkprivate-quartz.h"
static gpointer parent_class;
typedef struct {
GdkDrawable *drawable;
CGContextRef context;
} SurfaceInfo;
static cairo_user_data_key_t surface_info_key;
static void
surface_info_destroy (void *data)
{
SurfaceInfo *info = data;
_gdk_quartz_drawable_release_context (info->drawable, info->context);
g_free (info);
}
static cairo_surface_t *
gdk_quartz_ref_cairo_surface (GdkDrawable *drawable)
{
GdkDrawableImplQuartz *impl = GDK_DRAWABLE_IMPL_QUARTZ (drawable);
CGContextRef context;
int width, height;
cairo_surface_t *surface;
SurfaceInfo *info;
if (GDK_IS_WINDOW_IMPL_QUARTZ (drawable) &&
GDK_WINDOW_DESTROYED (impl->wrapper))
return NULL;
context = _gdk_quartz_drawable_get_context (drawable, TRUE);
if (!context)
return NULL;
gdk_drawable_get_size (drawable, &width, &height);
surface = cairo_quartz_surface_create (context, width, height, TRUE);
info = g_new (SurfaceInfo, 1);
info->drawable = drawable;
info->context = context;
cairo_surface_set_user_data (surface, &surface_info_key,
info, surface_info_destroy);
return surface;
}
static void
gdk_quartz_set_colormap (GdkDrawable *drawable,
GdkColormap *colormap)
{
GdkDrawableImplQuartz *impl = GDK_DRAWABLE_IMPL_QUARTZ (drawable);
if (impl->colormap == colormap)
return;
if (impl->colormap)
g_object_unref (impl->colormap);
impl->colormap = colormap;
if (impl->colormap)
g_object_ref (impl->colormap);
}
static GdkColormap*
gdk_quartz_get_colormap (GdkDrawable *drawable)
{
return GDK_DRAWABLE_IMPL_QUARTZ (drawable)->colormap;
}
static GdkScreen*
gdk_quartz_get_screen (GdkDrawable *drawable)
{
return _gdk_screen;
}
static GdkVisual*
gdk_quartz_get_visual (GdkDrawable *drawable)
{
return gdk_drawable_get_visual (GDK_DRAWABLE_IMPL_QUARTZ (drawable)->wrapper);
}
static int
gdk_quartz_get_depth (GdkDrawable *drawable)
{
/* This is a bit bogus but I'm not sure the other way is better */
return gdk_drawable_get_depth (GDK_DRAWABLE_IMPL_QUARTZ (drawable)->wrapper);
}
static void
gdk_quartz_draw_rectangle (GdkDrawable *drawable,
GdkGC *gc,
gboolean filled,
gint x,
gint y,
gint width,
gint height)
{
CGContextRef context = _gdk_quartz_drawable_get_context (drawable, FALSE);
CGRect rect = CGRectMake (x + 0.5, y + 0.5, width, height);
if (!context)
return;
_gdk_quartz_update_context_from_gc (context, gc);
if (filled)
{
_gdk_quartz_set_context_fill_color_from_pixel (context, gdk_drawable_get_colormap (drawable),
_gdk_gc_get_fg_pixel (gc));
CGContextFillRect (context, rect);
}
else
{
_gdk_quartz_set_context_stroke_color_from_pixel (context, gdk_drawable_get_colormap (drawable),
_gdk_gc_get_fg_pixel (gc));
CGContextStrokeRect (context, rect);
}
_gdk_quartz_drawable_release_context (drawable, context);
}
static void
gdk_quartz_draw_arc (GdkDrawable *drawable,
GdkGC *gc,
gboolean filled,
gint x,
gint y,
gint width,
gint height,
gint angle1,
gint angle2)
{
CGContextRef context = _gdk_quartz_drawable_get_context (drawable, FALSE);
float start_angle, end_angle;
if (!context)
return;
_gdk_quartz_update_context_from_gc (context, gc);
CGContextSaveGState (context);
CGContextTranslateCTM (context,
x + width / 2 + 0.5,
y + height / 2 + 0.5);
CGContextScaleCTM (context, 1.0, (float)height / width);
start_angle = (2 - (angle1 / (180.0 * 64.0))) * G_PI;
end_angle = start_angle - (angle2 / (180.0 * 64.0)) * G_PI;
if (filled)
{
_gdk_quartz_set_context_fill_color_from_pixel (context, gdk_drawable_get_colormap (drawable),
_gdk_gc_get_fg_pixel (gc));
CGContextMoveToPoint (context, 0, 0);
CGContextAddArc (context, 0, 0, width / 2,
start_angle, end_angle,
TRUE);
CGContextClosePath (context);
CGContextFillPath (context);
}
else
{
_gdk_quartz_set_context_stroke_color_from_pixel (context, gdk_drawable_get_colormap (drawable),
_gdk_gc_get_fg_pixel (gc));
CGContextAddArc (context, 0, 0, width / 2,
start_angle, end_angle,
TRUE);
CGContextStrokePath (context);
}
CGContextRestoreGState (context);
_gdk_quartz_drawable_release_context (drawable, context);
}
static void
gdk_quartz_draw_polygon (GdkDrawable *drawable,
GdkGC *gc,
gboolean filled,
GdkPoint *points,
gint npoints)
{
CGContextRef context = _gdk_quartz_drawable_get_context (drawable, FALSE);
int i;
if (!context)
return;
_gdk_quartz_update_context_from_gc (context, gc);
if (filled)
_gdk_quartz_set_context_fill_color_from_pixel (context, gdk_drawable_get_colormap (drawable),
_gdk_gc_get_fg_pixel (gc));
else
_gdk_quartz_set_context_stroke_color_from_pixel (context, gdk_drawable_get_colormap (drawable),
_gdk_gc_get_fg_pixel (gc));
CGContextMoveToPoint (context, points[0].x + 0.5, points[0].y + 0.5);
for (i = 1; i < npoints; i++)
CGContextAddLineToPoint (context, points[i].x + 0.5, points[i].y + 0.5);
CGContextClosePath (context);
if (filled)
CGContextFillPath (context);
else
CGContextStrokePath (context);
_gdk_quartz_drawable_release_context (drawable, context);
}
static void
gdk_quartz_draw_text (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const gchar *text,
gint text_length)
{
/* FIXME: Implement */
}
static void
gdk_quartz_draw_text_wc (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const GdkWChar *text,
gint text_length)
{
/* FIXME: Implement */
}
static void
gdk_quartz_draw_drawable (GdkDrawable *drawable,
GdkGC *gc,
GdkPixmap *src,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height)
{
int src_depth = gdk_drawable_get_depth (src);
int dest_depth = gdk_drawable_get_depth (drawable);
GdkDrawableImplQuartz *src_impl;
if (GDK_IS_DRAWABLE_IMPL_QUARTZ (src))
src_impl = GDK_DRAWABLE_IMPL_QUARTZ (src);
else if (GDK_IS_PIXMAP (src))
src_impl = GDK_DRAWABLE_IMPL_QUARTZ (GDK_PIXMAP_OBJECT (src)->impl);
else if (GDK_IS_WINDOW (src))
{
src_impl = GDK_DRAWABLE_IMPL_QUARTZ (GDK_WINDOW_OBJECT (src)->impl);
/* FIXME: Implement drawing a window. */
return;
}
else
g_assert_not_reached ();
if (src_depth == 1)
{
/* FIXME: src depth 1 is not supported yet */
}
else if (dest_depth != 0 && src_depth == dest_depth)
{
CGContextRef context = _gdk_quartz_drawable_get_context (drawable, FALSE);
if (!context)
return;
_gdk_quartz_update_context_from_gc (context, gc);
CGContextSetBlendMode (context, kCGBlendModeNormal);
CGContextClipToRect (context, CGRectMake (xdest, ydest, width, height));
CGContextTranslateCTM (context, xdest - xsrc, ydest - ysrc);
CGContextDrawImage (context, CGRectMake(0, 0,
GDK_PIXMAP_IMPL_QUARTZ (src_impl)->width,
GDK_PIXMAP_IMPL_QUARTZ (src_impl)->height),
GDK_PIXMAP_IMPL_QUARTZ (src_impl)->image);
_gdk_quartz_drawable_release_context (drawable, context);
}
else
g_warning ("Attempt to draw a drawable with depth %d to a drawable with depth %d",
src_depth, dest_depth);
}
static void
gdk_quartz_draw_points (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints)
{
int i;
/* Just draw 1x1 rectangles */
for (i = 0; i < npoints; i++)
{
gdk_draw_rectangle (drawable, gc, TRUE,
points[i].x, points[i].y,
1, 1);
}
}
static void
gdk_quartz_draw_segments (GdkDrawable *drawable,
GdkGC *gc,
GdkSegment *segs,
gint nsegs)
{
CGContextRef context = _gdk_quartz_drawable_get_context (drawable, FALSE);
int i;
if (!context)
return;
_gdk_quartz_update_context_from_gc (context, gc);
_gdk_quartz_set_context_stroke_color_from_pixel (context, gdk_drawable_get_colormap (drawable),
_gdk_gc_get_fg_pixel (gc));
for (i = 0; i < nsegs; i++)
{
CGContextMoveToPoint (context, segs[i].x1 + 0.5, segs[i].y1 + 0.5);
CGContextAddLineToPoint (context, segs[i].x2 + 0.5, segs[i].y2 + 0.5);
}
CGContextStrokePath (context);
_gdk_quartz_drawable_release_context (drawable, context);
}
static void
gdk_quartz_draw_lines (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints)
{
CGContextRef context = _gdk_quartz_drawable_get_context (drawable, FALSE);
int i;
if (!context)
return;
_gdk_quartz_update_context_from_gc (context, gc);
_gdk_quartz_set_context_stroke_color_from_pixel (context, gdk_drawable_get_colormap (drawable),
_gdk_gc_get_fg_pixel (gc));
for (i = 1; i < npoints; i++)
{
CGContextMoveToPoint (context, points[i - 1].x + 0.5, points[i - 1].y + 0.5);
CGContextAddLineToPoint (context, points[i].x + 0.5, points[i].y + 0.5);
}
CGContextStrokePath (context);
_gdk_quartz_drawable_release_context (drawable, context);
}
static void
gdk_quartz_draw_pixbuf (GdkDrawable *drawable,
GdkGC *gc,
GdkPixbuf *pixbuf,
gint src_x,
gint src_y,
gint dest_x,
gint dest_y,
gint width,
gint height,
GdkRgbDither dither,
gint x_dither,
gint y_dither)
{
CGContextRef context = _gdk_quartz_drawable_get_context (drawable, FALSE);
CGColorSpaceRef colorspace;
CGDataProviderRef data_provider;
CGImageRef image;
void *data;
int rowstride, pixbuf_width, pixbuf_height;
gboolean has_alpha;
if (!context)
return;
pixbuf_width = gdk_pixbuf_get_width (pixbuf);
pixbuf_height = gdk_pixbuf_get_height (pixbuf);
rowstride = gdk_pixbuf_get_rowstride (pixbuf);
has_alpha = gdk_pixbuf_get_has_alpha (pixbuf);
data = gdk_pixbuf_get_pixels (pixbuf);
colorspace = CGColorSpaceCreateDeviceRGB ();
data_provider = CGDataProviderCreateWithData (NULL, data, pixbuf_height * rowstride, NULL);
image = CGImageCreate (pixbuf_width, pixbuf_height, 8,
has_alpha ? 32 : 24, rowstride,
colorspace,
has_alpha ? kCGImageAlphaLast : 0,
data_provider, NULL, FALSE,
kCGRenderingIntentDefault);
CGDataProviderRelease (data_provider);
CGColorSpaceRelease (colorspace);
_gdk_quartz_update_context_from_gc (context, gc);
CGContextSetBlendMode (context, kCGBlendModeNormal);
CGContextClipToRect (context, CGRectMake (dest_x, dest_y, width, height));
CGContextTranslateCTM (context, dest_x - src_x, dest_y - src_y + pixbuf_height);
CGContextScaleCTM (context, 1, -1);
CGContextDrawImage (context, CGRectMake (0, 0, pixbuf_width, pixbuf_height), image);
CGImageRelease (image);
_gdk_quartz_drawable_release_context (drawable, context);
}
static void
gdk_quartz_draw_image (GdkDrawable *drawable,
GdkGC *gc,
GdkImage *image,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height)
{
CGContextRef context = _gdk_quartz_drawable_get_context (drawable, FALSE);
CGColorSpaceRef colorspace;
CGDataProviderRef data_provider;
CGImageRef cgimage;
if (!context)
return;
colorspace = CGColorSpaceCreateDeviceRGB ();
data_provider = CGDataProviderCreateWithData (NULL, image->mem, image->height * image->bpl, NULL);
/* FIXME: Make sure that this function draws 32-bit images correctly,
* also check endianness wrt kCGImageAlphaNoneSkipFirst */
cgimage = CGImageCreate (image->width, image->height, 8,
32, image->bpl,
colorspace,
kCGImageAlphaNoneSkipFirst,
data_provider, NULL, FALSE, kCGRenderingIntentDefault);
CGDataProviderRelease (data_provider);
CGColorSpaceRelease (colorspace);
_gdk_quartz_update_context_from_gc (context, gc);
CGContextSetBlendMode (context, kCGBlendModeNormal);
CGContextClipToRect (context, CGRectMake (xdest, ydest, width, height));
CGContextTranslateCTM (context, xdest - xsrc, ydest - ysrc + image->height);
CGContextScaleCTM (context, 1, -1);
CGContextDrawImage (context, CGRectMake (0, 0, image->width, image->height), cgimage);
CGImageRelease (cgimage);
_gdk_quartz_drawable_release_context (drawable, context);
}
static void
gdk_drawable_impl_quartz_finalize (GObject *object)
{
GdkDrawableImplQuartz *impl = GDK_DRAWABLE_IMPL_QUARTZ (object);
if (impl->colormap)
g_object_unref (impl->colormap);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gdk_drawable_impl_quartz_class_init (GdkDrawableImplQuartzClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GdkDrawableClass *drawable_class = GDK_DRAWABLE_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->finalize = gdk_drawable_impl_quartz_finalize;
drawable_class->create_gc = _gdk_quartz_gc_new;
drawable_class->draw_rectangle = gdk_quartz_draw_rectangle;
drawable_class->draw_arc = gdk_quartz_draw_arc;
drawable_class->draw_polygon = gdk_quartz_draw_polygon;
drawable_class->draw_text = gdk_quartz_draw_text;
drawable_class->draw_text_wc = gdk_quartz_draw_text_wc;
drawable_class->draw_drawable = gdk_quartz_draw_drawable;
drawable_class->draw_points = gdk_quartz_draw_points;
drawable_class->draw_segments = gdk_quartz_draw_segments;
drawable_class->draw_lines = gdk_quartz_draw_lines;
drawable_class->draw_image = gdk_quartz_draw_image;
drawable_class->draw_pixbuf = gdk_quartz_draw_pixbuf;
drawable_class->ref_cairo_surface = gdk_quartz_ref_cairo_surface;
drawable_class->set_colormap = gdk_quartz_set_colormap;
drawable_class->get_colormap = gdk_quartz_get_colormap;
drawable_class->get_depth = gdk_quartz_get_depth;
drawable_class->get_screen = gdk_quartz_get_screen;
drawable_class->get_visual = gdk_quartz_get_visual;
drawable_class->_copy_to_image = _gdk_quartz_copy_to_image;
}
GType
gdk_drawable_impl_quartz_get_type (void)
{
static GType object_type = 0;
if (!object_type)
{
static const GTypeInfo object_info =
{
sizeof (GdkDrawableImplQuartzClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gdk_drawable_impl_quartz_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GdkDrawableImplQuartz),
0, /* n_preallocs */
(GInstanceInitFunc) NULL,
};
object_type = g_type_register_static (GDK_TYPE_DRAWABLE,
"GdkDrawableImplQuartz",
&object_info, 0);
}
return object_type;
}
CGContextRef
_gdk_quartz_drawable_get_context (GdkDrawable *drawable, gboolean antialias)
{
if (GDK_IS_WINDOW_IMPL_QUARTZ (drawable))
{
GdkWindowImplQuartz *impl = GDK_WINDOW_IMPL_QUARTZ (drawable);
CGContextRef context;
impl->pool = [[NSAutoreleasePool alloc] init];
if (![impl->view lockFocusIfCanDraw])
{
[impl->pool release];
return NULL;
}
context = [[NSGraphicsContext currentContext] graphicsPort];
CGContextSaveGState (context);
CGContextSetAllowsAntialiasing (context, antialias);
/* We'll emulate the clipping caused by double buffering here */
if (impl->begin_paint_count != 0)
{
CGRect rect;
CGRect *cg_rects;
GdkRectangle *rects;
gint n_rects, i;
gdk_region_get_rectangles (impl->paint_clip_region,
&rects, &n_rects);
if (n_rects == 1)
cg_rects = &rect;
else
cg_rects = g_new (CGRect, n_rects);
for (i = 0; i < n_rects; i++)
{
cg_rects[i].origin.x = rects[i].x;
cg_rects[i].origin.y = rects[i].y;
cg_rects[i].size.width = rects[i].width;
cg_rects[i].size.height = rects[i].height;
}
CGContextClipToRects (context, cg_rects, n_rects);
g_free (rects);
if (cg_rects != &rect)
g_free (cg_rects);
}
return context;
}
else if (GDK_IS_PIXMAP_IMPL_QUARTZ (drawable))
{
GdkPixmapImplQuartz *impl = GDK_PIXMAP_IMPL_QUARTZ (drawable);
CGContextRef context;
context = CGBitmapContextCreate (impl->data,
CGImageGetWidth (impl->image),
CGImageGetHeight (impl->image),
CGImageGetBitsPerComponent (impl->image),
CGImageGetBytesPerRow (impl->image),
CGImageGetColorSpace (impl->image),
CGImageGetBitmapInfo (impl->image));
CGContextSetAllowsAntialiasing (context, antialias);
return context;
}
g_assert_not_reached ();
return NULL;
}
void
_gdk_quartz_drawable_release_context (GdkDrawable *drawable, CGContextRef context)
{
if (!context)
return;
if (GDK_IS_WINDOW_IMPL_QUARTZ (drawable))
{
GdkWindowImplQuartz *impl = GDK_WINDOW_IMPL_QUARTZ (drawable);
CGContextRestoreGState (context);
CGContextSetAllowsAntialiasing (context, TRUE);
if (impl->in_paint_rect_count == 0 &&
impl->begin_paint_count == 0)
CGContextFlush (context);
[impl->view unlockFocus];
[impl->pool release];
}
else if (GDK_IS_PIXMAP_IMPL_QUARTZ (drawable))
{
CGContextRelease (context);
}
}