diff options
Diffstat (limited to 'src/nativewindow/native/windows/GDImisc.c')
| -rw-r--r-- | src/nativewindow/native/windows/GDImisc.c | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/src/nativewindow/native/windows/GDImisc.c b/src/nativewindow/native/windows/GDImisc.c new file mode 100644 index 000000000..9bead17ec --- /dev/null +++ b/src/nativewindow/native/windows/GDImisc.c @@ -0,0 +1,242 @@ +#include <jni.h> +#include <stdlib.h> +#include <assert.h> + +#define WIN32_LEAN_AND_MEAN +#include <windows.h> +#undef WIN32_LEAN_AND_MEAN + +#include <wingdi.h> +#include <stddef.h> + +#ifdef _WIN32 + #ifdef _MSC_VER + /* This typedef is apparently needed for Microsoft compilers before VC8, + and on Windows CE */ + #if (_MSC_VER < 1400) || defined(UNDER_CE) + #ifdef _WIN64 + typedef long long intptr_t; + #else + typedef int intptr_t; + #endif + #endif + #else + #include <inttypes.h> + #endif +#else + #include <inttypes.h> +#endif + +#include <stdio.h> + +#include "NativewindowCommon.h" +#include "jogamp_nativewindow_windows_GDI.h" + +// #define VERBOSE_ON 1 + +#ifdef VERBOSE_ON + #define DBG_PRINT(args...) fprintf(stderr, args); +#else + #define DBG_PRINT(args...) +#endif + +static const char * const ClazzNamePoint = "javax/media/nativewindow/util/Point"; +static const char * const ClazzAnyCstrName = "<init>"; +static const char * const ClazzNamePointCstrSignature = "(II)V"; + +static jclass pointClz = NULL; +static jmethodID pointCstr = NULL; + +HINSTANCE GetApplicationHandle() { + return GetModuleHandle(NULL); +} + +/* Java->C glue code: + * Java package: jogamp.nativewindow.windows.GDI + * Java method: boolean CreateWindowClass(long hInstance, java.lang.String clazzName, long wndProc) + * C function: BOOL CreateWindowClass(HANDLE hInstance, LPCSTR clazzName, HANDLE wndProc); + */ +JNIEXPORT jboolean JNICALL +Java_jogamp_nativewindow_windows_GDI_CreateWindowClass + (JNIEnv *env, jclass _unused, jlong jHInstance, jstring jClazzName, jlong wndProc) +{ + HINSTANCE hInstance = (HINSTANCE) (intptr_t) jHInstance; + const TCHAR* clazzName = NULL; + WNDCLASS wc; + jboolean res; + +#ifdef UNICODE + clazzName = NewtCommon_GetNullTerminatedStringChars(env, jClazzName); +#else + clazzName = (*env)->GetStringUTFChars(env, jClazzName, NULL); +#endif + + ZeroMemory( &wc, sizeof( wc ) ); + if( GetClassInfo( hInstance, clazzName, &wc ) ) { + // registered already + res = JNI_TRUE; + } else { + // register now + ZeroMemory( &wc, sizeof( wc ) ); + wc.style = CS_HREDRAW | CS_VREDRAW ; + wc.lpfnWndProc = (WNDPROC) (intptr_t) wndProc; + wc.cbClsExtra = 0; + wc.cbWndExtra = 0; + wc.hInstance = hInstance; + wc.hIcon = NULL; + wc.hCursor = LoadCursor( NULL, IDC_ARROW); + wc.hbrBackground = NULL; // no background paint - GetStockObject(BLACK_BRUSH); + wc.lpszMenuName = NULL; + wc.lpszClassName = clazzName; + res = ( 0 != RegisterClass( &wc ) ) ? JNI_TRUE : JNI_FALSE ; + } + +#ifdef UNICODE + free((void*) clazzName); +#else + (*env)->ReleaseStringUTFChars(env, jClazzName, clazzName); +#endif + + return res; +} + +/* Java->C glue code: + * Java package: jogamp.nativewindow.windows.GDI + * Java method: boolean DestroyWindowClass(long hInstance, java.lang.String className) + * C function: BOOL DestroyWindowClass(HANDLE hInstance, LPCSTR className); + */ +JNIEXPORT jboolean JNICALL +Java_jogamp_nativewindow_windows_GDI_DestroyWindowClass + (JNIEnv *env, jclass _unused, jlong jHInstance, jstring jClazzName) +{ + HINSTANCE hInstance = (HINSTANCE) (intptr_t) jHInstance; + const TCHAR* clazzName = NULL; + jboolean res; + +#ifdef UNICODE + clazzName = NewtCommon_GetNullTerminatedStringChars(env, jClazzName); +#else + clazzName = (*env)->GetStringUTFChars(env, jClazzName, NULL); +#endif + + res = ( 0 != UnregisterClass( clazzName, hInstance ) ) ? JNI_TRUE : JNI_FALSE ; + +#ifdef UNICODE + free((void*) clazzName); +#else + (*env)->ReleaseStringUTFChars(env, jClazzName, clazzName); +#endif + + return res; +} + + +/* Java->C glue code: + * Java package: jogamp.nativewindow.windows.GDI + * Java method: long CreateDummyWindow0(long hInstance, java.lang.String className, java.lang.String windowName, int x, int y, int width, int height) + * C function: HANDLE CreateDummyWindow0(HANDLE hInstance, LPCSTR className, LPCSTR windowName, int x, int y, int width, int height); + */ +JNIEXPORT jlong JNICALL +Java_jogamp_nativewindow_windows_GDI_CreateDummyWindow0 + (JNIEnv *env, jclass _unused, jlong jHInstance, jstring jWndClassName, jstring jWndName, jint x, jint y, jint width, jint height) +{ + HINSTANCE hInstance = (HINSTANCE) (intptr_t) jHInstance; + const TCHAR* wndClassName = NULL; + const TCHAR* wndName = NULL; + DWORD dwExStyle; + DWORD dwStyle; + HWND hWnd; + +#ifdef UNICODE + wndClassName = NewtCommon_GetNullTerminatedStringChars(env, jWndClassName); + wndName = NewtCommon_GetNullTerminatedStringChars(env, jWndName); +#else + wndClassName = (*env)->GetStringUTFChars(env, jWndClassName, NULL); + wndName = (*env)->GetStringUTFChars(env, jWndName, NULL); +#endif + + dwExStyle = WS_EX_APPWINDOW | WS_EX_WINDOWEDGE; + dwStyle = WS_OVERLAPPEDWINDOW; + + hWnd = CreateWindowEx( dwExStyle, + wndClassName, + wndName, + dwStyle | WS_CLIPSIBLINGS | WS_CLIPCHILDREN, + x, y, width, height, + NULL, NULL, hInstance, NULL ); + +#ifdef UNICODE + free((void*) wndClassName); + free((void*) wndName); +#else + (*env)->ReleaseStringUTFChars(env, jWndClassName, wndClassName); + (*env)->ReleaseStringUTFChars(env, jWndName, wndName); +#endif + + return (jlong) (intptr_t) hWnd; +} + + +/* + * Class: jogamp_nativewindow_windows_GDI + * Method: initIDs0 + * Signature: ()Z + */ +JNIEXPORT jboolean JNICALL Java_jogamp_nativewindow_windows_GDI_initIDs0 + (JNIEnv *env, jclass clazz) +{ + if(NativewindowCommon_init(env)) { + jclass c = (*env)->FindClass(env, ClazzNamePoint); + if(NULL==c) { + NativewindowCommon_FatalError(env, "FatalError jogamp_nativewindow_windows_GDI: can't find %s", ClazzNamePoint); + } + pointClz = (jclass)(*env)->NewGlobalRef(env, c); + (*env)->DeleteLocalRef(env, c); + if(NULL==pointClz) { + NativewindowCommon_FatalError(env, "FatalError jogamp_nativewindow_windows_GDI: can't use %s", ClazzNamePoint); + } + pointCstr = (*env)->GetMethodID(env, pointClz, ClazzAnyCstrName, ClazzNamePointCstrSignature); + if(NULL==pointCstr) { + NativewindowCommon_FatalError(env, "FatalError jogamp_nativewindow_windows_GDI: can't fetch %s.%s %s", + ClazzNamePoint, ClazzAnyCstrName, ClazzNamePointCstrSignature); + } + } + return JNI_TRUE; +} + +LRESULT CALLBACK DummyWndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { + return DefWindowProc(hWnd,uMsg,wParam,lParam); +} + +/* + * Class: jogamp_nativewindow_windows_GDI + * Method: getDummyWndProc0 + * Signature: ()J + */ +JNIEXPORT jlong JNICALL Java_jogamp_nativewindow_windows_GDI_getDummyWndProc0 + (JNIEnv *env, jclass clazz) +{ + return (jlong) (intptr_t) DummyWndProc; +} + +/* + * Class: jogamp_nativewindow_windows_GDI + * Method: GetRelativeLocation0 + * Signature: (JJII)Ljavax/media/nativewindow/util/Point; + */ +JNIEXPORT jobject JNICALL Java_jogamp_nativewindow_windows_GDI_GetRelativeLocation0 + (JNIEnv *env, jclass unused, jlong jsrc_win, jlong jdest_win, jint src_x, jint src_y) +{ + HWND src_win = (HWND) (intptr_t) jsrc_win; + HWND dest_win = (HWND) (intptr_t) jdest_win; + POINT dest = { src_x, src_y } ; + int res; + + res = MapWindowPoints(src_win, dest_win, &dest, 1); + + DBG_PRINT("*** WindowsWindow: getRelativeLocation0: %p %d/%d -> %p %d/%d - ok: %d\n", + (void*)src_win, src_x, src_y, (void*)dest_win, (int)dest.x, (int)dest.y, res); + + return (*env)->NewObject(env, pointClz, pointCstr, (jint)dest.x, (jint)dest.y); +} + |