1 /**************************************************************
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one
4  * or more contributor license agreements.  See the NOTICE file
5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
7  * to you under the Apache License, Version 2.0 (the
8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
10  *
11  *   http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
19  *
20  *************************************************************/
21 
22 
23 
24 #ifdef WNT
25 
26 #include <windows.h>
27 // property name to register own window procedure on hwnd
28 #define OLD_PROC_KEY "oldwindowproc"
29 // signature of this window procedure
30 static LRESULT APIENTRY NativeViewWndProc( HWND , UINT , WPARAM , LPARAM );
31 
32 #endif
33 
34 #include "jawt.h"
35 #include "jawt_md.h"
36 #include "NativeView.h"
37 
38 #define MY_ASSERT(X,S) if (!X) { fprintf(stderr,"%s\n",S); return 0L;}
39 
40 #define SYSTEM_WIN32   1
41 #define SYSTEM_WIN16   2
42 #define SYSTEM_JAVA    3
43 #define SYSTEM_OS2     4
44 #define SYSTEM_MAC     5
45 #define SYSTEM_XWINDOW 6
46 
47 /*****************************************************************************
48  *
49  * Class      : NativeView
50  * Method     : getNativeWindowSystemType
51  * Signature  : ()I
52  * Description: returns an identifier for the current operating system
53  */
Java_embeddedobj_test_NativeView_getNativeWindowSystemType(JNIEnv * env,jobject obj_this)54 JNIEXPORT jint JNICALL Java_embeddedobj_test_NativeView_getNativeWindowSystemType
55   (JNIEnv * env, jobject obj_this)
56 {
57     return (SYSTEM_WIN32);
58 }
59 
60 /*****************************************************************************
61  *
62  * Class      : NativeView
63  * Method     : getNativeWindow
64  * Signature  : ()J
65  * Description: returns the native systemw window handle of this object
66  */
Java_embeddedobj_test_NativeView_getNativeWindow(JNIEnv * env,jobject obj_this)67 JNIEXPORT jlong JNICALL Java_embeddedobj_test_NativeView_getNativeWindow
68   (JNIEnv * env, jobject obj_this)
69 {
70     jboolean                      result  ;
71     jint                          lock    ;
72     JAWT                          awt     ;
73     JAWT_DrawingSurface*          ds      ;
74     JAWT_DrawingSurfaceInfo*      dsi     ;
75     JAWT_Win32DrawingSurfaceInfo* dsi_win ;
76 	jlong						  drawable;
77 
78 #if 0
79 	LONG						  hFuncPtr;
80 #endif
81 
82 	/* Get the AWT */
83 	awt.version = JAWT_VERSION_1_3;
84     result      = JAWT_GetAWT(env, &awt);
85     MY_ASSERT(result!=JNI_FALSE,"wrong jawt version");
86 
87     /* Get the drawing surface */
88 	if ((ds = awt.GetDrawingSurface(env, obj_this)) == NULL)
89 		return 0L;
90 
91 	/* Lock the drawing surface */
92 	lock = ds->Lock(ds);
93     MY_ASSERT((lock & JAWT_LOCK_ERROR)==0,"can't lock the drawing surface");
94 
95 	/* Get the drawing surface info */
96 	dsi = ds->GetDrawingSurfaceInfo(ds);
97 
98 	/* Get the platform-specific drawing info */
99 #ifdef WNT
100 	dsi_win  = (JAWT_Win32DrawingSurfaceInfo*)dsi->platformInfo;
101     drawable = (jlong)dsi_win->hwnd;
102 #else
103     dsi_x11  = (JAWT_X11DrawingSurfaceInfo*)dsi->platformInfo;
104 	drawable = (jlong)dsi_x11->drawable;
105 #endif
106 
107 	/* Free the drawing surface info */
108 	ds->FreeDrawingSurfaceInfo(dsi);
109 	/* Unlock the drawing surface */
110 	ds->Unlock(ds);
111 	/* Free the drawing surface */
112 	awt.FreeDrawingSurface(ds);
113 
114 #if 0
115     /* Register own window procedure
116        Do it one times only! Otherwhise
117        multiple instances will be registered
118        and calls on such construct produce
119        a stack overflow.
120      */
121 
122     if (GetProp( (HWND)drawable, OLD_PROC_KEY )==0)
123     {
124         hFuncPtr = SetWindowLong( (HWND)drawable, GWL_WNDPROC, (DWORD)NativeViewWndProc );
125         SetProp( (HWND)drawable, OLD_PROC_KEY, (HANDLE)hFuncPtr );
126     }
127 #endif
128 
129     return drawable;
130 }
131 
132 #if 0
133 /*****************************************************************************
134  *
135  * Class      : -
136  * Method     : NativeViewWndProc
137  * Signature  : -
138  * Description: registered window handler to intercept window messages between
139  *              java and office process
140  */
141 static LRESULT APIENTRY NativeViewWndProc(
142     HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
143 {
144     HANDLE hFuncPtr;
145 
146     /* resize new created child window to fill out the java window complete */
147     if (uMsg==WM_PARENTNOTIFY)
148     {
149         if (wParam == WM_CREATE)
150         {
151             RECT rect;
152             HWND hChild = (HWND) lParam;
153 
154             GetClientRect(hWnd, &rect);
155 
156             SetWindowPos(hChild,
157                         NULL,
158                         rect.left,
159                         rect.top,
160                         rect.right - rect.left,
161                         rect.bottom - rect.top,
162                         SWP_NOZORDER);
163         }
164     }
165     /* handle normal resize events */
166     else if(uMsg==WM_SIZE)
167     {
168         WORD newHeight = HIWORD(lParam);
169         WORD newWidth  = LOWORD(lParam);
170         HWND hChild    = GetWindow(hWnd, GW_CHILD);
171 
172         if (hChild != NULL)
173             SetWindowPos(hChild, NULL, 0, 0, newWidth, newHeight, SWP_NOZORDER);
174     }
175 
176     /* forward request to original handler which is intercepted by this window procedure */
177     hFuncPtr = GetProp(hWnd, OLD_PROC_KEY);
178     MY_ASSERT(hFuncPtr,"lost original window proc handler");
179     return CallWindowProc( hFuncPtr, hWnd, uMsg, wParam, lParam);
180 }
181 #endif
182 
183