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Java example source code file (CWrapper.m)

This example Java source code file (CWrapper.m) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

awtwindow, jnf_cocoa_enter, jnf_cocoa_exit, jni_false, jnicall, jnienv, jniexport, levels, nscolor, nsrect, nsresponder, nsview, nswindow, threadutilities

The CWrapper.m Java example source code

/*
 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

#import "CWrapper.h"

#import <JavaNativeFoundation/JavaNativeFoundation.h>

#import "AWTWindow.h"
#import "LWCToolkit.h"
#import "GeomUtilities.h"
#import "ThreadUtilities.h"

#import "sun_lwawt_macosx_CWrapper_NSWindow.h"

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSObject
 * Method:    release
 * Signature: (J)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSObject_release
(JNIEnv *env, jclass cls, jlong objectPtr)
{
JNF_COCOA_ENTER(env);

    id obj = (id)jlong_to_ptr(objectPtr);
    [ThreadUtilities performOnMainThreadWaiting:NO block:^(){
        CFRelease(obj);
    }];

JNF_COCOA_EXIT(env);
}


/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    makeKeyAndOrderFront
 * Signature: (J)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_makeKeyAndOrderFront
(JNIEnv *env, jclass cls, jlong windowPtr)
{
JNF_COCOA_ENTER(env);

    NSWindow *window = (NSWindow *)jlong_to_ptr(windowPtr);
    [ThreadUtilities performOnMainThread:@selector(makeKeyAndOrderFront:)
                                      on:window
                              withObject:nil
                           waitUntilDone:NO];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    makeKeyWindow
 * Signature: (J)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_makeKeyWindow
(JNIEnv *env, jclass cls, jlong windowPtr)
{
JNF_COCOA_ENTER(env);

    NSWindow *window = (NSWindow *)jlong_to_ptr(windowPtr);
    [ThreadUtilities performOnMainThread:@selector(makeKeyWindow)
                                      on:window
                              withObject:nil
                           waitUntilDone:NO];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    makeMainWindow
 * Signature: (J)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_makeMainWindow
(JNIEnv *env, jclass cls, jlong windowPtr)
{
JNF_COCOA_ENTER(env);

    NSWindow *window = (NSWindow *)jlong_to_ptr(windowPtr);
    [ThreadUtilities performOnMainThread:@selector(makeMainWindow)
                                      on:window
                              withObject:nil
                           waitUntilDone:NO];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    canBecomeMainWindow
 * Signature: (J)V
 */
JNIEXPORT jboolean JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_canBecomeMainWindow
(JNIEnv *env, jclass cls, jlong windowPtr)
{
    __block jboolean canBecomeMainWindow = JNI_FALSE;

JNF_COCOA_ENTER(env);

    NSWindow *window = (NSWindow *)jlong_to_ptr(windowPtr);
    [ThreadUtilities performOnMainThreadWaiting:YES block:^(){
        canBecomeMainWindow = [window canBecomeMainWindow];
    }];

JNF_COCOA_EXIT(env);

    return canBecomeMainWindow;
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    isKeyWindow
 * Signature: (J)Z
 */
JNIEXPORT jboolean JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_isKeyWindow
(JNIEnv *env, jclass cls, jlong windowPtr)
{
    __block jboolean isKeyWindow = JNI_FALSE;

JNF_COCOA_ENTER(env);

    NSWindow *window = (NSWindow *)jlong_to_ptr(windowPtr);
    [ThreadUtilities performOnMainThreadWaiting:YES block:^(){
        isKeyWindow = [window isKeyWindow];
    }];

JNF_COCOA_EXIT(env);

    return isKeyWindow;
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    orderFront
 * Signature: (J)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_orderFront
(JNIEnv *env, jclass cls, jlong windowPtr)
{
JNF_COCOA_ENTER(env);

    NSWindow *window = (NSWindow *)jlong_to_ptr(windowPtr);
    [ThreadUtilities performOnMainThread:@selector(orderFront:)
                                      on:window
                              withObject:window
                           waitUntilDone:NO];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    orderOut
 * Signature: (J)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_orderOut
(JNIEnv *env, jclass cls, jlong windowPtr)
{
JNF_COCOA_ENTER(env);

    NSWindow *window = (NSWindow *)jlong_to_ptr(windowPtr);
    [ThreadUtilities performOnMainThread:@selector(orderOut:)
                                      on:window
                              withObject:window
                           waitUntilDone:NO];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    orderFrontRegardless
 * Signature: (J)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_orderFrontRegardless
(JNIEnv *env, jclass cls, jlong windowPtr)
{
JNF_COCOA_ENTER(env);

    NSWindow *window = (NSWindow *)jlong_to_ptr(windowPtr);
    [ThreadUtilities performOnMainThread:@selector(orderFrontRegardless)
                                      on:window
                              withObject:nil
                           waitUntilDone:NO];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    orderWindow
 * Signature: (JIJ)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_orderWindow
(JNIEnv *env, jclass cls, jlong windowPtr, jint order, jlong relativeToPtr)
{
JNF_COCOA_ENTER(env);

    NSWindow *window = (NSWindow *)jlong_to_ptr(windowPtr);
    NSWindow *relativeTo = (NSWindow *)jlong_to_ptr(relativeToPtr);
    [ThreadUtilities performOnMainThreadWaiting:NO block:^(){
        [window orderWindow:(NSWindowOrderingMode)order relativeTo:[relativeTo windowNumber]];
    }];

JNF_COCOA_EXIT(env);
}

// Used for CWrapper.NSWindow.setLevel() (and level() which isn't implemented yet)
static NSInteger LEVELS[sun_lwawt_macosx_CWrapper_NSWindow_MAX_WINDOW_LEVELS];
static void initLevels()
{
    static dispatch_once_t pred;

    dispatch_once(&pred, ^{
        LEVELS[sun_lwawt_macosx_CWrapper_NSWindow_NSNormalWindowLevel] = NSNormalWindowLevel;
        LEVELS[sun_lwawt_macosx_CWrapper_NSWindow_NSFloatingWindowLevel] = NSFloatingWindowLevel;
    });
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    setLevel
 * Signature: (JI)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_setLevel
(JNIEnv *env, jclass cls, jlong windowPtr, jint level)
{
JNF_COCOA_ENTER(env);

    if (level >= 0 && level < sun_lwawt_macosx_CWrapper_NSWindow_MAX_WINDOW_LEVELS) {
        initLevels();

        NSWindow *window = (NSWindow *)jlong_to_ptr(windowPtr);
        [ThreadUtilities performOnMainThreadWaiting:NO block:^(){
            [window setLevel: LEVELS[level]];
        }];
    } else {
        [JNFException raise:env as:kIllegalArgumentException reason:"unknown level"];
    }

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    addChildWindow
 * Signature: (JJI)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_addChildWindow
(JNIEnv *env, jclass cls, jlong parentPtr, jlong childPtr, jint order)
{
JNF_COCOA_ENTER(env);

    NSWindow *parent = (NSWindow *)jlong_to_ptr(parentPtr);
    NSWindow *child = (NSWindow *)jlong_to_ptr(childPtr);
    [ThreadUtilities performOnMainThreadWaiting:NO block:^(){
        [parent addChildWindow:child ordered:order];
    }];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    removeChildWindow
 * Signature: (JJ)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_removeChildWindow
(JNIEnv *env, jclass cls, jlong parentPtr, jlong childPtr)
{
JNF_COCOA_ENTER(env);

    AWTWindow *parent = (AWTWindow *)jlong_to_ptr(parentPtr);
    AWTWindow *child = (AWTWindow *)jlong_to_ptr(childPtr);
    [ThreadUtilities performOnMainThread:@selector(removeChildWindow:)
                                      on:parent
                              withObject:child
                           waitUntilDone:NO];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    setFrame
 * Signature: (JIIIIZ)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_setFrame
(JNIEnv *env, jclass cls, jlong windowPtr, jint x, jint y, jint w, jint h, jboolean display)
{
JNF_COCOA_ENTER(env);

    AWTWindow *window = (AWTWindow *)jlong_to_ptr(windowPtr);
    NSRect frame = NSMakeRect(x, y, w, h);
    [ThreadUtilities performOnMainThreadWaiting:NO block:^(){
        [window setFrame:frame display:display];
    }];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    setAlphaValue
 * Signature: (JF)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_setAlphaValue
(JNIEnv *env, jclass cls, jlong windowPtr, jfloat alpha)
{
JNF_COCOA_ENTER(env);

    AWTWindow *window = (AWTWindow *)jlong_to_ptr(windowPtr);
    [ThreadUtilities performOnMainThreadWaiting:NO block:^(){
        [window setAlphaValue:(CGFloat)alpha];
    }];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    setOpaque
 * Signature: (Z)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_setOpaque
(JNIEnv *env, jclass cls, jlong windowPtr, jboolean opaque)
{
JNF_COCOA_ENTER(env);

    AWTWindow *window = (AWTWindow *)jlong_to_ptr(windowPtr);
    [ThreadUtilities performOnMainThreadWaiting:NO block:^(){
        [window setOpaque:(BOOL)opaque];
    }];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    setBackgroundColor
 * Signature: (J)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_setBackgroundColor
(JNIEnv *env, jclass cls, jlong windowPtr, jlong colorPtr)
{
JNF_COCOA_ENTER(env);

    AWTWindow *window = (AWTWindow *)jlong_to_ptr(windowPtr);
    NSColor *color = (NSColor *)jlong_to_ptr(colorPtr);
    [ThreadUtilities performOnMainThreadWaiting:NO block:^(){
        [window setBackgroundColor:color];
    }];

JNF_COCOA_EXIT(env);
}

/*
 * Method:    miniaturize
 * Signature: (J)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_miniaturize
(JNIEnv *env, jclass cls, jlong windowPtr)
{
JNF_COCOA_ENTER(env);

    NSWindow *window = (NSWindow *)jlong_to_ptr(windowPtr);
    [ThreadUtilities performOnMainThread:@selector(miniaturize:)
                                      on:window
                              withObject:nil
                           waitUntilDone:NO];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    deminiaturize
 * Signature: (J)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_deminiaturize
(JNIEnv *env, jclass cls, jlong windowPtr)
{
JNF_COCOA_ENTER(env);

    NSWindow *window = (NSWindow *)jlong_to_ptr(windowPtr);
    [ThreadUtilities performOnMainThread:@selector(deminiaturize:)
                                      on:window
                              withObject:nil
                           waitUntilDone:NO];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    isZoomed
 * Signature: (J)Z
 */
JNIEXPORT jboolean JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_isZoomed
(JNIEnv *env, jclass cls, jlong windowPtr)
{
    __block jboolean isZoomed = JNI_FALSE;
    
JNF_COCOA_ENTER(env);
    
    NSWindow *window = (NSWindow *)jlong_to_ptr(windowPtr);
    [ThreadUtilities performOnMainThreadWaiting:YES block:^(){
        isZoomed = [window isZoomed];
    }];
    
JNF_COCOA_EXIT(env);
    
    return isZoomed;
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    zoom
 * Signature: (J)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_zoom
(JNIEnv *env, jclass cls, jlong windowPtr)
{
JNF_COCOA_ENTER(env);

    NSWindow *window = (NSWindow *)jlong_to_ptr(windowPtr);
    [ThreadUtilities performOnMainThread:@selector(zoom:)
                                      on:window
                              withObject:nil
                           waitUntilDone:NO];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSWindow
 * Method:    makeFirstResponder
 * Signature: (JJ)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSWindow_makeFirstResponder
(JNIEnv *env, jclass cls, jlong windowPtr, jlong responderPtr)
{
JNF_COCOA_ENTER(env);

    NSWindow *window = (NSWindow *)jlong_to_ptr(windowPtr);
    NSResponder *responder = (NSResponder *)jlong_to_ptr(responderPtr);
    [ThreadUtilities performOnMainThread:@selector(makeFirstResponder:)
                                      on:window
                              withObject:responder
                           waitUntilDone:NO];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSView
 * Method:    addSubview
 * Signature: (JJ)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSView_addSubview
(JNIEnv *env, jclass cls, jlong viewPtr, jlong subviewPtr)
{
JNF_COCOA_ENTER(env);

    NSView *view = (NSView *)jlong_to_ptr(viewPtr);
    NSView *subview = (NSView *)jlong_to_ptr(subviewPtr);
    [ThreadUtilities performOnMainThreadWaiting:YES block:^(){
        [view addSubview:subview];
    }];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSView
 * Method:    removeFromSuperview
 * Signature: (J)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSView_removeFromSuperview
(JNIEnv *env, jclass cls, jlong viewPtr)
{
JNF_COCOA_ENTER(env);

    NSView *view = (NSView *)jlong_to_ptr(viewPtr);
    [ThreadUtilities performOnMainThread:@selector(removeFromSuperview)
                                      on:view
                              withObject:nil
                           waitUntilDone:NO];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSView
 * Method:    setFrame
 * Signature: (JIIII)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSView_setFrame
(JNIEnv *env, jclass cls, jlong viewPtr, jint x, jint y, jint w, jint h)
{
JNF_COCOA_ENTER(env);

    NSView *view = (NSView *)jlong_to_ptr(viewPtr);
    [ThreadUtilities performOnMainThreadWaiting:NO block:^(){
        [view setFrame:NSMakeRect(x, y, w, h)];
    }];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSView
 * Method:    frame
 * Signature: (J)Ljava/awt/Rectangle;
 */
JNIEXPORT jobject JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSView_frame
(JNIEnv *env, jclass cls, jlong viewPtr)
{
    jobject jRect = NULL;

JNF_COCOA_ENTER(env);

    __block NSRect rect = NSZeroRect;

    NSView *view = (NSView *)jlong_to_ptr(viewPtr);
    [ThreadUtilities performOnMainThreadWaiting:YES block:^(){
        rect = [view frame];
    }];

    jRect = NSToJavaRect(env, rect);

JNF_COCOA_EXIT(env);

    return jRect;
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSView
 * Method:    window
 * Signature: (J)J
 */
JNIEXPORT jlong JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSView_window
(JNIEnv *env, jclass cls, jlong viewPtr)
{
    __block jlong windowPtr = 0L;

JNF_COCOA_ENTER(env);

    NSView *view = (NSView *)jlong_to_ptr(viewPtr);
    [ThreadUtilities performOnMainThreadWaiting:YES block:^(){
        windowPtr = ptr_to_jlong([view window]);
    }];

JNF_COCOA_EXIT(env);

    return windowPtr;
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSView
 * Method:    setHidden
 * Signature: (JZ)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSView_setHidden
(JNIEnv *env, jclass cls, jlong viewPtr, jboolean toHide)
{    
    JNF_COCOA_ENTER(env);
    
    NSView *view = (NSView *)jlong_to_ptr(viewPtr);
    [ThreadUtilities performOnMainThreadWaiting:NO block:^(){
        [view setHidden:(BOOL)toHide];
    }];
    
    JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSView
 * Method:    setToolTip
 * Signature: (JLjava/lang/String;)V
 */
JNIEXPORT void JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSView_setToolTip
(JNIEnv *env, jclass cls, jlong viewPtr, jstring msg)
{

JNF_COCOA_ENTER(env);

    NSView *view = (NSView *)jlong_to_ptr(viewPtr);
    NSString* s = JNFJavaToNSString(env, msg); 
    [ThreadUtilities performOnMainThreadWaiting:NO block:^(){
        [view setToolTip: s];
    }];

JNF_COCOA_EXIT(env);
}

/*
 * Class:     sun_lwawt_macosx_CWrapper$NSColor
 * Method:    clearColor
 * Signature: ()J
 */
JNIEXPORT jlong JNICALL
Java_sun_lwawt_macosx_CWrapper_00024NSColor_clearColor
(JNIEnv *env, jclass cls)
{
    __block jlong clearColorPtr = 0L;

JNF_COCOA_ENTER(env);

    [ThreadUtilities performOnMainThreadWaiting:YES block:^(){
        clearColorPtr = ptr_to_jlong([NSColor clearColor]);
    }];

JNF_COCOA_EXIT(env);

    return clearColorPtr;
}

Other Java examples (source code examples)

Here is a short list of links related to this Java CWrapper.m source code file:

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