diff CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/include/jawt.h @ 69:33d812a61356

planemo upload commit 2e9511a184a1ca667c7be0c6321a36dc4e3d116d
author jpayne
date Tue, 18 Mar 2025 17:55:14 -0400
parents
children
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/include/jawt.h	Tue Mar 18 17:55:14 2025 -0400
@@ -0,0 +1,356 @@
+/*
+ * Copyright (c) 1999, 2017, 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.
+ */
+
+#ifndef _JAVASOFT_JAWT_H_
+#define _JAVASOFT_JAWT_H_
+
+#include "jni.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * AWT native interface.
+ *
+ * The AWT native interface allows a native C or C++ application a means
+ * by which to access native structures in AWT.  This is to facilitate moving
+ * legacy C and C++ applications to Java and to target the needs of the
+ * developers who need to do their own native rendering to canvases
+ * for performance or other reasons.
+ *
+ * Conversely it also provides mechanisms for an application which already
+ * has a native window to provide that to AWT for AWT rendering.
+ *
+ * Since every platform may be different in its native data structures
+ * and APIs for windowing systems the application must necessarily
+ * provided per-platform source and compile and deliver per-platform
+ * native code  to use this API.
+ *
+ * These interfaces are not part of the Java SE specification and
+ * a VM is not required to implement this API. However it is strongly
+ * recommended that all implementations which support headful AWT
+ * also support these interfaces.
+ *
+ */
+
+/*
+ * AWT Native Drawing Surface (JAWT_DrawingSurface).
+ *
+ * For each platform, there is a native drawing surface structure.  This
+ * platform-specific structure can be found in jawt_md.h.  It is recommended
+ * that additional platforms follow the same model.  It is also recommended
+ * that VMs on all platforms support the existing structures in jawt_md.h.
+ *
+ *******************
+ * EXAMPLE OF USAGE:
+ *******************
+ *
+ * In Win32, a programmer wishes to access the HWND of a canvas to perform
+ * native rendering into it.  The programmer has declared the paint() method
+ * for their canvas subclass to be native:
+ *
+ *
+ * MyCanvas.java:
+ *
+ * import java.awt.*;
+ *
+ * public class MyCanvas extends Canvas {
+ *
+ *     static {
+ *         System.loadLibrary("mylib");
+ *     }
+ *
+ *     public native void paint(Graphics g);
+ * }
+ *
+ *
+ * myfile.c:
+ *
+ * #include "jawt_md.h"
+ * #include <assert.h>
+ *
+ * JNIEXPORT void JNICALL
+ * Java_MyCanvas_paint(JNIEnv* env, jobject canvas, jobject graphics)
+ * {
+ *     JAWT awt;
+ *     JAWT_DrawingSurface* ds;
+ *     JAWT_DrawingSurfaceInfo* dsi;
+ *     JAWT_Win32DrawingSurfaceInfo* dsi_win;
+ *     jboolean result;
+ *     jint lock;
+ *
+ *     // Get the AWT. Request version 9 to access features in that release.
+ *     awt.version = JAWT_VERSION_9;
+ *     result = JAWT_GetAWT(env, &awt);
+ *     assert(result != JNI_FALSE);
+ *
+ *     // Get the drawing surface
+ *     ds = awt.GetDrawingSurface(env, canvas);
+ *     assert(ds != NULL);
+ *
+ *     // Lock the drawing surface
+ *     lock = ds->Lock(ds);
+ *     assert((lock & JAWT_LOCK_ERROR) == 0);
+ *
+ *     // Get the drawing surface info
+ *     dsi = ds->GetDrawingSurfaceInfo(ds);
+ *
+ *     // Get the platform-specific drawing info
+ *     dsi_win = (JAWT_Win32DrawingSurfaceInfo*)dsi->platformInfo;
+ *
+ *     //////////////////////////////
+ *     // !!! DO PAINTING HERE !!! //
+ *     //////////////////////////////
+ *
+ *     // Free the drawing surface info
+ *     ds->FreeDrawingSurfaceInfo(dsi);
+ *
+ *     // Unlock the drawing surface
+ *     ds->Unlock(ds);
+ *
+ *     // Free the drawing surface
+ *     awt.FreeDrawingSurface(ds);
+ * }
+ *
+ */
+
+/*
+ * JAWT_Rectangle
+ * Structure for a native rectangle.
+ */
+typedef struct jawt_Rectangle {
+    jint x;
+    jint y;
+    jint width;
+    jint height;
+} JAWT_Rectangle;
+
+struct jawt_DrawingSurface;
+
+/*
+ * JAWT_DrawingSurfaceInfo
+ * Structure for containing the underlying drawing information of a component.
+ */
+typedef struct jawt_DrawingSurfaceInfo {
+    /*
+     * Pointer to the platform-specific information.  This can be safely
+     * cast to a JAWT_Win32DrawingSurfaceInfo on Windows or a
+     * JAWT_X11DrawingSurfaceInfo on Linux and Solaris. On Mac OS X this is a
+     * pointer to a NSObject that conforms to the JAWT_SurfaceLayers
+     * protocol. See jawt_md.h for details.
+     */
+    void* platformInfo;
+    /* Cached pointer to the underlying drawing surface */
+    struct jawt_DrawingSurface* ds;
+    /* Bounding rectangle of the drawing surface */
+    JAWT_Rectangle bounds;
+    /* Number of rectangles in the clip */
+    jint clipSize;
+    /* Clip rectangle array */
+    JAWT_Rectangle* clip;
+} JAWT_DrawingSurfaceInfo;
+
+#define JAWT_LOCK_ERROR                 0x00000001
+#define JAWT_LOCK_CLIP_CHANGED          0x00000002
+#define JAWT_LOCK_BOUNDS_CHANGED        0x00000004
+#define JAWT_LOCK_SURFACE_CHANGED       0x00000008
+
+/*
+ * JAWT_DrawingSurface
+ * Structure for containing the underlying drawing information of a component.
+ * All operations on a JAWT_DrawingSurface MUST be performed from the same
+ * thread as the call to GetDrawingSurface.
+ */
+typedef struct jawt_DrawingSurface {
+    /*
+     * Cached reference to the Java environment of the calling thread.
+     * If Lock(), Unlock(), GetDrawingSurfaceInfo() or
+     * FreeDrawingSurfaceInfo() are called from a different thread,
+     * this data member should be set before calling those functions.
+     */
+    JNIEnv* env;
+    /* Cached reference to the target object */
+    jobject target;
+    /*
+     * Lock the surface of the target component for native rendering.
+     * When finished drawing, the surface must be unlocked with
+     * Unlock().  This function returns a bitmask with one or more of the
+     * following values:
+     *
+     * JAWT_LOCK_ERROR - When an error has occurred and the surface could not
+     * be locked.
+     *
+     * JAWT_LOCK_CLIP_CHANGED - When the clip region has changed.
+     *
+     * JAWT_LOCK_BOUNDS_CHANGED - When the bounds of the surface have changed.
+     *
+     * JAWT_LOCK_SURFACE_CHANGED - When the surface itself has changed
+     */
+    jint (JNICALL *Lock)
+        (struct jawt_DrawingSurface* ds);
+    /*
+     * Get the drawing surface info.
+     * The value returned may be cached, but the values may change if
+     * additional calls to Lock() or Unlock() are made.
+     * Lock() must be called before this can return a valid value.
+     * Returns NULL if an error has occurred.
+     * When finished with the returned value, FreeDrawingSurfaceInfo must be
+     * called.
+     */
+    JAWT_DrawingSurfaceInfo* (JNICALL *GetDrawingSurfaceInfo)
+        (struct jawt_DrawingSurface* ds);
+    /*
+     * Free the drawing surface info.
+     */
+    void (JNICALL *FreeDrawingSurfaceInfo)
+        (JAWT_DrawingSurfaceInfo* dsi);
+    /*
+     * Unlock the drawing surface of the target component for native rendering.
+     */
+    void (JNICALL *Unlock)
+        (struct jawt_DrawingSurface* ds);
+} JAWT_DrawingSurface;
+
+/*
+ * JAWT
+ * Structure for containing native AWT functions.
+ */
+typedef struct jawt {
+    /*
+     * Version of this structure.  This must always be set before
+     * calling JAWT_GetAWT(). It affects the functions returned.
+     * Must be one of the known pre-defined versions.
+     */
+    jint version;
+    /*
+     * Return a drawing surface from a target jobject.  This value
+     * may be cached.
+     * Returns NULL if an error has occurred.
+     * Target must be a java.awt.Component (should be a Canvas
+     * or Window for native rendering).
+     * FreeDrawingSurface() must be called when finished with the
+     * returned JAWT_DrawingSurface.
+     */
+    JAWT_DrawingSurface* (JNICALL *GetDrawingSurface)
+        (JNIEnv* env, jobject target);
+    /*
+     * Free the drawing surface allocated in GetDrawingSurface.
+     */
+    void (JNICALL *FreeDrawingSurface)
+        (JAWT_DrawingSurface* ds);
+    /*
+     * Since 1.4
+     * Locks the entire AWT for synchronization purposes
+     */
+    void (JNICALL *Lock)(JNIEnv* env);
+    /*
+     * Since 1.4
+     * Unlocks the entire AWT for synchronization purposes
+     */
+    void (JNICALL *Unlock)(JNIEnv* env);
+    /*
+     * Since 1.4
+     * Returns a reference to a java.awt.Component from a native
+     * platform handle.  On Windows, this corresponds to an HWND;
+     * on Solaris and Linux, this is a Drawable.  For other platforms,
+     * see the appropriate machine-dependent header file for a description.
+     * The reference returned by this function is a local
+     * reference that is only valid in this environment.
+     * This function returns a NULL reference if no component could be
+     * found with matching platform information.
+     */
+    jobject (JNICALL *GetComponent)(JNIEnv* env, void* platformInfo);
+
+    /**
+     * Since 9
+     * Creates a java.awt.Frame placed in a native container. Container is
+     * referenced by the native platform handle. For example on Windows this
+     * corresponds to an HWND. For other platforms, see the appropriate
+     * machine-dependent header file for a description. The reference returned
+     * by this function is a local reference that is only valid in this
+     * environment. This function returns a NULL reference if no frame could be
+     * created with matching platform information.
+     */
+    jobject (JNICALL *CreateEmbeddedFrame) (JNIEnv *env, void* platformInfo);
+
+    /**
+     * Since 9
+     * Moves and resizes the embedded frame. The new location of the top-left
+     * corner is specified by x and y parameters relative to the native parent
+     * component. The new size is specified by width and height.
+     *
+     * The embedded frame should be created by CreateEmbeddedFrame() method, or
+     * this function will not have any effect.
+     *
+     * java.awt.Component.setLocation() and java.awt.Component.setBounds() for
+     * EmbeddedFrame really don't move it within the native parent. These
+     * methods always locate the embedded frame at (0, 0) for backward
+     * compatibility. To allow moving embedded frames this method was
+     * introduced, and it works just the same way as setLocation() and
+     * setBounds() for usual, non-embedded components.
+     *
+     * Using usual get/setLocation() and get/setBounds() together with this new
+     * method is not recommended.
+     */
+    void (JNICALL *SetBounds) (JNIEnv *env, jobject embeddedFrame,
+            jint x, jint y, jint w, jint h);
+    /**
+     * Since 9
+     * Synthesize a native message to activate or deactivate an EmbeddedFrame
+     * window depending on the value of parameter doActivate, if "true"
+     * activates the window; otherwise, deactivates the window.
+     *
+     * The embedded frame should be created by CreateEmbeddedFrame() method, or
+     * this function will not have any effect.
+     */
+    void (JNICALL *SynthesizeWindowActivation) (JNIEnv *env,
+            jobject embeddedFrame, jboolean doActivate);
+} JAWT;
+
+/*
+ * Get the AWT native structure.  This function returns JNI_FALSE if
+ * an error occurs.
+ */
+_JNI_IMPORT_OR_EXPORT_
+jboolean JNICALL JAWT_GetAWT(JNIEnv* env, JAWT* awt);
+
+/*
+ * Specify one of these constants as the JAWT.version
+ * Specifying an earlier version will limit the available functions to
+ * those provided in that earlier version of JAWT.
+ * See the "Since" note on each API. Methods with no "Since"
+ * may be presumed to be present in JAWT_VERSION_1_3.
+ */
+#define JAWT_VERSION_1_3 0x00010003
+#define JAWT_VERSION_1_4 0x00010004
+#define JAWT_VERSION_1_7 0x00010007
+#define JAWT_VERSION_9 0x00090000
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* !_JAVASOFT_JAWT_H_ */