netsurf/cocoa/apple_image.m

267 lines
7.8 KiB
Objective-C

/*
* 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/>.
*/
#ifdef WITH_APPLE_IMAGE
#import "cocoa/apple_image.h"
#include "utils/config.h"
#include "content/content_protected.h"
#include "image/bitmap.h"
#include "desktop/plotters.h"
#include "utils/talloc.h"
#include "utils/utils.h"
#include "utils/schedule.h"
typedef struct apple_image_content {
struct content base;
struct bitmap *bitmap; /**< Created NetSurf bitmap */
NSUInteger frames;
NSUInteger currentFrame;
int *frameTimes;
} apple_image_content;
static nserror apple_image_create(const content_handler *handler,
lwc_string *imime_type, const http_parameter *params,
llcache_handle *llcache, const char *fallback_charset,
bool quirks, struct content **c);
static bool apple_image_convert(struct content *c);
static void apple_image_destroy(struct content *c);
static bool apple_image_redraw(struct content *c, struct content_redraw_data *data,
const struct rect *clip, const struct redraw_context *ctx);
static nserror apple_image_clone(const struct content *old,
struct content **newc);
static content_type apple_image_content_type(void);
static void *apple_image_get_internal(const struct content *c, void *context)
{
apple_image_content *ai_c = (apple_image_content *)c;
return ai_c->bitmap;
}
static const content_handler apple_image_content_handler = {
.create = apple_image_create,
.data_complete = apple_image_convert,
.destroy = apple_image_destroy,
.redraw = apple_image_redraw,
.clone = apple_image_clone,
.get_internal = apple_image_get_internal,
.type = apple_image_content_type,
.no_share = false
};
static nserror register_for_type( NSString *mime )
{
const char *type = [mime UTF8String];
/* nsgif has priority since it supports animated GIF */
#ifdef WITH_GIF
if (strcmp(type, "image/gif") == 0)
return NSERROR_OK;
#endif
nserror error = content_factory_register_handler( type, &apple_image_content_handler );
if (error != NSERROR_OK) return error;
return NSERROR_OK;
}
nserror apple_image_init(void)
{
NSArray *utis = [NSBitmapImageRep imageTypes];
for (NSString *uti in utis) {
NSDictionary *declaration = [(NSDictionary *)UTTypeCopyDeclaration( (CFStringRef)uti ) autorelease];
id mimeTypes = [[declaration objectForKey: (NSString *)kUTTypeTagSpecificationKey] objectForKey: (NSString *)kUTTagClassMIMEType];
if (mimeTypes == nil) continue;
if (![mimeTypes isKindOfClass: [NSArray class]]) {
mimeTypes = [NSArray arrayWithObject: mimeTypes];
}
for (NSString *mime in mimeTypes) {
nserror error = register_for_type( mime );
if (error != NSERROR_OK) return error;
}
}
return NSERROR_OK;
}
nserror apple_image_create(const content_handler *handler,
lwc_string *imime_type, const http_parameter *params,
llcache_handle *llcache, const char *fallback_charset,
bool quirks, struct content **c)
{
apple_image_content *ai;
nserror error;
ai = talloc_zero(0, apple_image_content);
if (ai == NULL)
return NSERROR_NOMEM;
error = content__init(&ai->base, handler, imime_type, params,
llcache, fallback_charset, quirks);
if (error != NSERROR_OK) {
talloc_free(ai);
return error;
}
*c = (struct content *) ai;
return NSERROR_OK;
}
static void animate_image_cb( void *ptr )
{
struct apple_image_content *ai = ptr;
++ai->currentFrame;
if (ai->currentFrame >= ai->frames) ai->currentFrame = 0;
[(NSBitmapImageRep *)ai->bitmap setProperty: NSImageCurrentFrame withValue: [NSNumber numberWithUnsignedInteger: ai->currentFrame]];
bitmap_modified( ai->bitmap );
union content_msg_data data;
data.redraw.full_redraw = true;
data.redraw.x = data.redraw.object_x = 0;
data.redraw.y = data.redraw.object_y = 0;
data.redraw.width = data.redraw.object_width = ai->base.width;
data.redraw.height = data.redraw.object_height = ai->base.height;
data.redraw.object = &ai->base;
content_broadcast( &ai->base, CONTENT_MSG_REDRAW, data );
schedule( ai->frameTimes[ai->currentFrame], animate_image_cb, ai );
}
/**
* Convert a CONTENT_APPLE_IMAGE for display.
*/
bool apple_image_convert(struct content *c)
{
apple_image_content *ai_c = (apple_image_content *)c;
unsigned long size;
const char *bytes = content__get_source_data(c, &size);
NSData *data = [NSData dataWithBytesNoCopy: (char *)bytes length: size freeWhenDone: NO];
NSBitmapImageRep *image = [[NSBitmapImageRep imageRepWithData: data] retain];
if (image == nil) {
union content_msg_data msg_data;
msg_data.error = "cannot decode image";
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
}
c->width = [image pixelsWide];
c->height = [image pixelsHigh];
ai_c->bitmap = (void *)image;
NSString *url = [NSString stringWithUTF8String: nsurl_access(llcache_handle_get_url( content_get_llcache_handle( c )) )];
NSString *title = [NSString stringWithFormat: @"%@ (%dx%d)", [url lastPathComponent], c->width, c->height];
content__set_title(c, [title UTF8String] );
content_set_ready(c);
content_set_done(c);
content_set_status(c, "");
struct apple_image_content *ai = (struct apple_image_content *)c;
NSUInteger frames = [[image valueForProperty: NSImageFrameCount] unsignedIntegerValue];
if (frames > 1) {
ai->frames = frames;
ai->currentFrame = 0;
ai->frameTimes = talloc_zero_array( ai, int, ai->frames );
for (NSUInteger i = 0; i < frames; i++) {
[image setProperty: NSImageCurrentFrame withValue: [NSNumber numberWithUnsignedInteger: i]];
ai->frameTimes[i] = 100 * [[image valueForProperty: NSImageCurrentFrameDuration] floatValue];
}
[image setProperty: NSImageCurrentFrame withValue: [NSNumber numberWithUnsignedInteger: 0]];
schedule( ai->frameTimes[0], animate_image_cb, ai );
}
return true;
}
void apple_image_destroy(struct content *c)
{
apple_image_content *ai_c = (apple_image_content *)c;
[(id)ai_c->bitmap release];
ai_c->bitmap = NULL;
schedule_remove( animate_image_cb, c );
}
nserror apple_image_clone(const struct content *old, struct content **newc)
{
apple_image_content *ai;
apple_image_content *ai_old = (apple_image_content *)old;
nserror error;
ai = talloc_zero(0, apple_image_content);
if (ai == NULL)
return NSERROR_NOMEM;
error = content__clone(old, &ai->base);
if (error != NSERROR_OK) {
content_destroy(&ai->base);
return error;
}
if (old->status == CONTENT_STATUS_READY ||
old->status == CONTENT_STATUS_DONE) {
ai->base.width = old->width;
ai->base.height = old->height;
ai->bitmap = (void *)[(id)ai_old->bitmap retain];
}
*newc = (struct content *) ai;
return NSERROR_OK;
}
content_type apple_image_content_type(void)
{
return CONTENT_IMAGE;
}
/**
* Redraw a CONTENT_APPLE_IMAGE with appropriate tiling.
*/
bool apple_image_redraw(struct content *c, struct content_redraw_data *data,
const struct rect *clip, const struct redraw_context *ctx)
{
apple_image_content *ai_c = (apple_image_content *)c;
bitmap_flags_t flags = BITMAPF_NONE;
if (data->repeat_x)
flags |= BITMAPF_REPEAT_X;
if (data->repeat_y)
flags |= BITMAPF_REPEAT_Y;
return ctx->plot->bitmap(data->x, data->y, data->width, data->height,
ai_c->bitmap, data->background_colour, flags);
}
#endif /* WITH_APPLE_IMAGE */