gtk2/gtk/gtkquartz.c
John Ralls eafff409c9 [Bug 664238] GTK apps crash when dragging something
Corrects a bad condition in a test in 085b98f4
2011-11-20 10:35:40 -08:00

407 lines
11 KiB
C

/* gtkquartz.c: Utility functions used by the Quartz port
*
* Copyright (C) 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 "gtkquartz.h"
#include "gtkselectionprivate.h"
#include <gdk/quartz/gdkquartz.h>
NSImage *
_gtk_quartz_create_image_from_pixbuf (GdkPixbuf *pixbuf)
{
CGColorSpaceRef colorspace;
CGDataProviderRef data_provider;
CGContextRef context;
CGImageRef image;
void *data;
int rowstride, pixbuf_width, pixbuf_height;
gboolean has_alpha;
NSImage *nsimage;
NSSize nsimage_size;
pixbuf_width = gdk_pixbuf_get_width (pixbuf);
pixbuf_height = gdk_pixbuf_get_height (pixbuf);
g_return_val_if_fail (pixbuf_width != 0 && pixbuf_height != 0, NULL);
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);
nsimage = [[NSImage alloc] initWithSize:NSMakeSize (pixbuf_width, pixbuf_height)];
nsimage_size = [nsimage size];
if (nsimage_size.width == 0.0 && nsimage_size.height == 0.0)
{
[nsimage release];
g_critical ("%s returned a zero-sized image", G_STRFUNC);
return NULL;
}
[nsimage lockFocus];
context = (CGContextRef)[[NSGraphicsContext currentContext] graphicsPort];
CGContextDrawImage (context, CGRectMake (0, 0, pixbuf_width, pixbuf_height), image);
[nsimage unlockFocus];
CGImageRelease (image);
return nsimage;
}
static NSString *
target_to_pasteboard_type (const char *target)
{
if (strcmp (target, "UTF8_STRING") == 0)
return NSStringPboardType;
else if (strcmp (target, "image/tiff") == 0)
return NSTIFFPboardType;
else if (strcmp (target, "application/x-color") == 0)
return NSColorPboardType;
else if (strcmp (target, "text/uri-list") == 0)
return NSURLPboardType;
else
return [NSString stringWithUTF8String:target];
}
NSSet *
_gtk_quartz_target_list_to_pasteboard_types (GtkTargetList *target_list)
{
NSMutableSet *set = [[NSMutableSet alloc] init];
GList *list;
for (list = target_list->list; list; list = list->next)
{
GtkTargetPair *pair = list->data;
gchar *target = gdk_atom_name (pair->target);
[set addObject:target_to_pasteboard_type (target)];
g_free (target);
}
return set;
}
NSSet *
_gtk_quartz_target_entries_to_pasteboard_types (const GtkTargetEntry *targets,
guint n_targets)
{
NSMutableSet *set = [[NSMutableSet alloc] init];
int i;
for (i = 0; i < n_targets; i++)
{
[set addObject:target_to_pasteboard_type (targets[i].target)];
}
return set;
}
GdkAtom
_gtk_quartz_pasteboard_type_to_atom (NSString *type)
{
if ([type isEqualToString:NSStringPboardType])
return gdk_atom_intern_static_string ("UTF8_STRING");
else if ([type isEqualToString:NSTIFFPboardType])
return gdk_atom_intern_static_string ("image/tiff");
else if ([type isEqualToString:NSColorPboardType])
return gdk_atom_intern_static_string ("application/x-color");
else if ([type isEqualToString:NSURLPboardType])
return gdk_atom_intern_static_string ("text/uri-list");
else
return gdk_atom_intern ([type UTF8String], FALSE);
}
GList *
_gtk_quartz_pasteboard_types_to_atom_list (NSArray *array)
{
GList *result = NULL;
int i;
int count;
count = [array count];
for (i = 0; i < count; i++)
{
GdkAtom atom = _gtk_quartz_pasteboard_type_to_atom ([array objectAtIndex:i]);
result = g_list_prepend (result, GDK_ATOM_TO_POINTER (atom));
}
return result;
}
GtkSelectionData *
_gtk_quartz_get_selection_data_from_pasteboard (NSPasteboard *pasteboard,
GdkAtom target,
GdkAtom selection)
{
GtkSelectionData *selection_data = NULL;
selection_data = g_slice_new0 (GtkSelectionData);
selection_data->selection = selection;
selection_data->target = target;
if (!selection_data->display)
selection_data->display = gdk_display_get_default ();
if (target == gdk_atom_intern_static_string ("UTF8_STRING"))
{
NSString *s = [pasteboard stringForType:NSStringPboardType];
if (s)
{
const char *utf8_string = [s UTF8String];
gtk_selection_data_set (selection_data,
target, 8,
(guchar *)utf8_string, strlen (utf8_string));
}
}
else if (target == gdk_atom_intern_static_string ("application/x-color"))
{
NSColor *nscolor = [[NSColor colorFromPasteboard:pasteboard]
colorUsingColorSpaceName:NSDeviceRGBColorSpace];
guint16 color[4];
selection_data->target = target;
color[0] = 0xffff * [nscolor redComponent];
color[1] = 0xffff * [nscolor greenComponent];
color[2] = 0xffff * [nscolor blueComponent];
color[3] = 0xffff * [nscolor alphaComponent];
gtk_selection_data_set (selection_data, target, 16, (guchar *)color, 8);
}
else if (target == gdk_atom_intern_static_string ("text/uri-list"))
{
if ([[pasteboard types] containsObject:NSFilenamesPboardType])
{
gchar **uris;
NSArray *files = [pasteboard propertyListForType:NSFilenamesPboardType];
int n_files = [files count];
int i;
selection_data->target = gdk_atom_intern_static_string ("text/uri-list");
uris = (gchar **) g_malloc (sizeof (gchar*) * (n_files + 1));
for (i = 0; i < n_files; ++i)
{
NSString* uriString = [files objectAtIndex:i];
uriString = [@"file://" stringByAppendingString:uriString];
uriString = [uriString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
uris[i] = (gchar *) [uriString cStringUsingEncoding:NSUTF8StringEncoding];
}
uris[i] = NULL;
gtk_selection_data_set_uris (selection_data, uris);
g_free (uris);
}
else if ([[pasteboard types] containsObject:NSURLPboardType])
{
gchar *uris[2];
NSURL *url = [NSURL URLFromPasteboard:pasteboard];
selection_data->target = gdk_atom_intern_static_string ("text/uri-list");
uris[0] = (gchar *) [[url description] UTF8String];
uris[1] = NULL;
gtk_selection_data_set_uris (selection_data, uris);
}
}
else
{
NSData *data;
gchar *name;
name = gdk_atom_name (target);
if (strcmp (name, "image/tiff") == 0)
data = [pasteboard dataForType:NSTIFFPboardType];
else
data = [pasteboard dataForType:[NSString stringWithUTF8String:name]];
g_free (name);
if (data)
{
gtk_selection_data_set (selection_data,
target, 8,
[data bytes], [data length]);
}
}
return selection_data;
}
void
_gtk_quartz_set_selection_data_for_pasteboard (NSPasteboard *pasteboard,
GtkSelectionData *selection_data)
{
NSString *type;
gchar *target;
GdkDisplay *display;
gint format;
const guchar *data;
NSUInteger length;
target = gdk_atom_name (gtk_selection_data_get_target (selection_data));
display = gtk_selection_data_get_display (selection_data);
format = gtk_selection_data_get_format (selection_data);
data = gtk_selection_data_get_data (selection_data);
length = gtk_selection_data_get_length (selection_data);
type = target_to_pasteboard_type (target);
g_free (target);
if ([type isEqualTo:NSStringPboardType])
[pasteboard setString:[NSString stringWithUTF8String:(const char *)data]
forType:type];
else if ([type isEqualTo:NSColorPboardType])
{
guint16 *color = (guint16 *)data;
float red, green, blue, alpha;
NSColor *nscolor;
red = (float)color[0] / 0xffff;
green = (float)color[1] / 0xffff;
blue = (float)color[2] / 0xffff;
alpha = (float)color[3] / 0xffff;
nscolor = [NSColor colorWithDeviceRed:red green:green blue:blue alpha:alpha];
[nscolor writeToPasteboard:pasteboard];
}
else if ([type isEqualTo:NSURLPboardType])
{
gchar **uris;
uris = gtk_selection_data_get_uris (selection_data);
if (uris != NULL)
{
NSURL *url;
url = [NSURL URLWithString:[NSString stringWithUTF8String:uris[0]]];
[url writeToPasteboard:pasteboard];
}
g_strfreev (uris);
}
else
[pasteboard setData:[NSData dataWithBytesNoCopy:(void *)data
length:length
freeWhenDone:NO]
forType:type];
}
#ifdef QUARTZ_RELOCATION
/* Bundle-based functions for various directories. These almost work
* even when the application isn't in a bundle, becuase mainBundle
* paths point to the bin directory in that case. It's a simple matter
* to test for that and remove the last element.
*/
static const gchar *
get_bundle_path (void)
{
static gchar *path = NULL;
if (path == NULL)
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
gchar *resource_path = g_strdup ([[[NSBundle mainBundle] resourcePath] UTF8String]);
gchar *base;
[pool drain];
base = g_path_get_basename (resource_path);
if (strcmp (base, "bin") == 0)
path = g_path_get_dirname (resource_path);
else
path = strdup (resource_path);
g_free (resource_path);
g_free (base);
}
return path;
}
const gchar *
_gtk_get_datadir (void)
{
static gchar *path = NULL;
if (path == NULL)
path = g_build_filename (get_bundle_path (), "share", NULL);
return path;
}
const gchar *
_gtk_get_libdir (void)
{
static gchar *path = NULL;
if (path == NULL)
path = g_build_filename (get_bundle_path (), "lib", NULL);
return path;
}
const gchar *
_gtk_get_localedir (void)
{
static gchar *path = NULL;
if (path == NULL)
path = g_build_filename (get_bundle_path (), "share", "locale", NULL);
return path;
}
const gchar *
_gtk_get_sysconfdir (void)
{
static gchar *path = NULL;
if (path == NULL)
path = g_build_filename (get_bundle_path (), "etc", NULL);
return path;
}
const gchar *
_gtk_get_data_prefix (void)
{
return get_bundle_path ();
}
#endif /* QUARTZ_RELOCATION */