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181 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* The Contents of this file are made available subject to the terms of
* the BSD license.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Sun Microsystems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*************************************************************************/
#include <windows.h>
#include "jawt.h"
#include "jawt_md.h"
#include "NativeView.h"
#define MY_ASSERT(X,S) if (!X) { fprintf(stderr,"%s\n",S); return 0L;}
#define SYSTEM_WIN32 1
#define SYSTEM_WIN16 2
#define SYSTEM_JAVA 3
#define SYSTEM_OS2 4
#define SYSTEM_MAC 5
#define SYSTEM_XWINDOW 6
// property name to register own window procedure on hwnd
#define OLD_PROC_KEY "oldwindowproc"
// signature of this window procedure
static LRESULT APIENTRY NativeViewWndProc( HWND , UINT , WPARAM , LPARAM );
/*****************************************************************************
*
* Class : NativeView
* Method : getNativeWindowSystemType
* Signature : ()I
* Description: returns an identifier for the current operating system
*/
JNIEXPORT jint JNICALL Java_NativeView_getNativeWindowSystemType
(JNIEnv * env, jobject obj_this)
{
return SYSTEM_WIN32;
}
/*****************************************************************************
*
* Class : NativeView
* Method : getNativeWindow
* Signature : ()J
* Description: returns the native systemw window handle of this object
*/
JNIEXPORT jlong JNICALL Java_NativeView_getNativeWindow
(JNIEnv * env, jobject obj_this)
{
jboolean result ;
jint lock ;
JAWT awt ;
JAWT_DrawingSurface* ds ;
JAWT_DrawingSurfaceInfo* dsi ;
JAWT_Win32DrawingSurfaceInfo* dsi_win ;
HDC hdc ;
HWND hWnd ;
LONG hFuncPtr;
/* Get the AWT */
awt.version = JAWT_VERSION_1_3;
result = JAWT_GetAWT(env, &awt);
MY_ASSERT(result!=JNI_FALSE,"wrong jawt version");
/* Get the drawing surface */
if ((ds = awt.GetDrawingSurface(env, obj_this)) == NULL)
return 0L;
/* Lock the drawing surface */
lock = ds->Lock(ds);
MY_ASSERT((lock & JAWT_LOCK_ERROR)==0,"can't lock the drawing surface");
/* Get the drawing surface info */
dsi = ds->GetDrawingSurfaceInfo(ds);
/* Get the platform-specific drawing info */
dsi_win = (JAWT_Win32DrawingSurfaceInfo*)dsi->platformInfo;
hdc = dsi_win->hdc;<--- Variable 'hdc' is assigned a value that is never used.
hWnd = dsi_win->hwnd;
/* Free the drawing surface info */
ds->FreeDrawingSurfaceInfo(dsi);
/* Unlock the drawing surface */
ds->Unlock(ds);
/* Free the drawing surface */
awt.FreeDrawingSurface(ds);
/* Register own window procedure
Do it one times only! Otherwise
multiple instances will be registered
and calls on such construct produce
a stack overflow.
*/
if (GetProp( hWnd, OLD_PROC_KEY )==0)
{
hFuncPtr = SetWindowLong( hWnd, GWL_WNDPROC, (DWORD)NativeViewWndProc );
SetProp( hWnd, OLD_PROC_KEY, (HANDLE)hFuncPtr );
}
return (jlong)hWnd;
}
/*****************************************************************************
*
* Class : -
* Method : NativeViewWndProc
* Signature : -
* Description: registered window handler to intercept window messages between
* java and office process
*/
static LRESULT APIENTRY NativeViewWndProc(
HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
HANDLE hFuncPtr;
/* resize new created child window to fill out the java window complete */
if (uMsg==WM_PARENTNOTIFY)
{
if (wParam == WM_CREATE)
{
RECT rect;
HWND hChild = (HWND) lParam;
GetClientRect(hWnd, &rect);
SetWindowPos(hChild,
NULL,
rect.left,
rect.top,
rect.right - rect.left,
rect.bottom - rect.top,
SWP_NOZORDER);
}
}
/* handle normal resize events */
else if(uMsg==WM_SIZE)
{
WORD newHeight = HIWORD(lParam);
WORD newWidth = LOWORD(lParam);
HWND hChild = GetWindow(hWnd, GW_CHILD);
if (hChild != NULL)
SetWindowPos(hChild, NULL, 0, 0, newWidth, newHeight, SWP_NOZORDER);
}
/* forward request to original handler which is intercepted by this window procedure */
hFuncPtr = GetProp(hWnd, OLD_PROC_KEY);
MY_ASSERT(hFuncPtr,"lost original window proc handler");
return CallWindowProc( hFuncPtr, hWnd, uMsg, wParam, lParam);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|