118 lines
3.4 KiB
Objective-C
118 lines
3.4 KiB
Objective-C
/*
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* Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#import "JAVAVM/jawt_md.h"
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#import <Quartz/Quartz.h>
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/*
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* Pass the block to a selector of a class that extends NSObject
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* There is no need to copy the block since this class always waits.
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*/
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@interface BlockRunner : NSObject { }
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+ (void)invokeBlock:(void (^)())block;
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@end
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@implementation BlockRunner
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+ (void)invokeBlock:(void (^)())block{
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block();
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}
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+ (void)performBlock:(void (^)())block {
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[self performSelectorOnMainThread:@selector(invokeBlock:) withObject:block waitUntilDone:YES];
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}
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@end
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/*
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* Class: MyMacCanvas
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* Method: paint
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* SIgnature: (Ljava/awt/Graphics;)V
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*/
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JNIEXPORT void JNICALL Java_MyMacCanvas_addNativeCoreAnimationLayer
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(JNIEnv* env, jobject canvas, jobject graphics)
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{
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printf("paint called\n");
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JAWT awt;
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awt.version = JAWT_VERSION_1_4 | JAWT_MACOSX_USE_CALAYER;
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if (JAWT_GetAWT(env, &awt) == JNI_FALSE) {
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printf("AWT Not found\n");
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return;
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}
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printf("JAWT found\n");
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/* Get the drawing surface */
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JAWT_DrawingSurface* ds = awt.GetDrawingSurface(env, canvas);
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if (ds == NULL) {
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printf("NULL drawing surface\n");
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return;
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}
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/* Lock the drawing surface */
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jint lock = ds->Lock(ds);
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printf("Lock value %d\n", (int)lock);
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if((lock & JAWT_LOCK_ERROR) != 0) {
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printf("Error locking surface");
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return;
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}
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/* Get the drawing surface info */
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JAWT_DrawingSurfaceInfo *dsi = ds->GetDrawingSurfaceInfo(ds);
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if (dsi == NULL) {
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printf("Error getting surface info\n");
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ds->Unlock(ds);
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return;
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}
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// create and attach the layer on the AppKit thread
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void (^block)() = ^(){
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// attach the "root layer" to the AWT Canvas surface layers
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CALayer *layer = [[CALayer new] autorelease];
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id <JAWT_SurfaceLayers> surfaceLayers = (id <JAWT_SurfaceLayers>)dsi->platformInfo;
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CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB ();
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CGFloat rgba[4] = {0.0, 0.0, 0.0, 1.0};
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CGColorRef color = CGColorCreate (colorspace, rgba);
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layer.backgroundColor = color;
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surfaceLayers.layer = layer;
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};
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if ([NSThread isMainThread]) {
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block();
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} else {
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[BlockRunner performBlock:block];
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}
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/* Free the drawing surface info */
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ds->FreeDrawingSurfaceInfo(dsi);
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/* Unlock the drawing surface */
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ds->Unlock(ds);
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/* Free the drawing surface */
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awt.FreeDrawingSurface(ds);
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}
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