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Moved native cursor origin to middle of the window

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This commit is contained in:
Elias Naur 2003-10-11 11:03:06 +00:00
parent 9c427cd029
commit 43b2d67a71
3 changed files with 68 additions and 70 deletions
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51
src/native/win32/org_lwjgl_input_Mouse.cpp
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@ -41,6 +41,7 @@
#define WIN32_LEAN_AND_MEAN
#include "org_lwjgl_input_Mouse.h"
#include <windows.h>
#include <math.h>
#undef DIRECTINPUT_VERSION
#define DIRECTINPUT_VERSION 0x0300
#include "Window.h"
@ -49,13 +50,11 @@
static LPDIRECTINPUTDEVICE mDIDevice; // DI Device instance
static int mButtoncount = 0; // Temporary buttoncount
static bool mHaswheel; // Temporary wheel check
static JNIEnv* mEnvironment; // JNIEnvironment copy
static bool mCreate_success; // bool used to determine successfull creation
static bool mFirstTimeInitialization = true; // boolean to determine first time initialization
// Cached fields of Mouse.java
static jclass clsMouse;
static jfieldID fidMButtons;
static jfieldID fidMDX;
static jfieldID fidMDY;
@ -72,8 +71,8 @@ void ShutdownMouse();
void CreateMouse();
void SetupMouse();
void InitializeMouseFields();
void CacheMouseFields();
void UpdateMouseFields();
void CacheMouseFields(JNIEnv *env, jclass clsMouse);
void UpdateMouseFields(JNIEnv *env, jclass clsMouse);
static void getScreenClientRect(RECT* clientRect, RECT* windowRect)
{
@ -89,11 +88,8 @@ static void getScreenClientRect(RECT* clientRect, RECT* windowRect)
* Initializes any field ids
*/
JNIEXPORT void JNICALL Java_org_lwjgl_input_Mouse_initIDs(JNIEnv * env, jclass clazz) {
mEnvironment = env;
clsMouse = clazz;
/* Cache fields in Mouse */
CacheMouseFields();
CacheMouseFields(env, clazz);
}
JNIEXPORT jboolean JNICALL Java_org_lwjgl_input_Mouse_nHasWheel(JNIEnv *, jclass) {
@ -110,11 +106,8 @@ JNIEXPORT jint JNICALL Java_org_lwjgl_input_Mouse_nGetButtonCount(JNIEnv *, jcla
JNIEXPORT void JNICALL Java_org_lwjgl_input_Mouse_nCreate(JNIEnv *env, jclass clazz) {
HRESULT hr;
mEnvironment = env;
clsMouse = clazz;
ShowCursor(FALSE);
CacheMouseFields();
CacheMouseFields(env, clazz);
/* skip enumeration, since we only want system mouse */
CreateMouse();
@ -177,12 +170,12 @@ JNIEXPORT void JNICALL Java_org_lwjgl_input_Mouse_nSetNativeCursor
SetClassLong(hwnd, GCL_HCURSOR, (LONG)cursor);
SetCursor(cursor);
if (!usingNativeCursor) {
/* Reset cursor position to 0, 0 */
/* Reset cursor position to middle of the window */
RECT clientRect;
GetWindowRect(hwnd, &windowRect);
getScreenClientRect(&clientRect, &windowRect);
cursorPos.x = clientRect.left;
cursorPos.y = clientRect.bottom - 1;
cursorPos.x = (clientRect.left + clientRect.right)/2;
cursorPos.y = (int)ceil((clientRect.top + clientRect.bottom)/2.0f);
SetCursorPos(cursorPos.x, cursorPos.y);
ShowCursor(TRUE);
usingNativeCursor = true;
@ -230,8 +223,6 @@ JNIEXPORT jint JNICALL Java_org_lwjgl_input_Mouse_nGetMinCursorSize
* Signature: ()V
*/
JNIEXPORT void JNICALL Java_org_lwjgl_input_Mouse_nDestroy(JNIEnv *env, jclass clazz) {
mEnvironment = env;
clsMouse = clazz;
ShowCursor(TRUE);
ShutdownMouse();
}
@ -243,9 +234,7 @@ JNIEXPORT void JNICALL Java_org_lwjgl_input_Mouse_nDestroy(JNIEnv *env, jclass c
*/
JNIEXPORT void JNICALL Java_org_lwjgl_input_Mouse_nPoll(JNIEnv * env, jclass clazz) {
mDIDevice->Acquire();
mEnvironment = env;
clsMouse = clazz;
UpdateMouseFields();
UpdateMouseFields(env, clazz);
}
/**
@ -381,7 +370,7 @@ static void getGDICursorDelta(int* return_dx, int* return_dy) {
/**
* Updates the fields on the Mouse
*/
void UpdateMouseFields() {
static void UpdateMouseFields(JNIEnv *env, jclass clsMouse) {
HRESULT hRes;
DIMOUSESTATE diMouseState; // State of Mouse
int dx, dy;
@ -418,9 +407,9 @@ void UpdateMouseFields() {
}
dy = -dy;
mEnvironment->SetStaticIntField(clsMouse, fidMDX, (jint)dx);
mEnvironment->SetStaticIntField(clsMouse, fidMDY, (jint)dy);
mEnvironment->SetStaticIntField(clsMouse, fidMDWheel, (jint)diMouseState.lZ);
env->SetStaticIntField(clsMouse, fidMDX, (jint)dx);
env->SetStaticIntField(clsMouse, fidMDY, (jint)dy);
env->SetStaticIntField(clsMouse, fidMDWheel, (jint)diMouseState.lZ);
for (int i = 0; i < mButtoncount; i++) {
if (diMouseState.rgbButtons[i] != 0) {
@ -429,16 +418,16 @@ void UpdateMouseFields() {
diMouseState.rgbButtons[i] = JNI_FALSE;
}
}
jbooleanArray mButtonsArray = (jbooleanArray) mEnvironment->GetStaticObjectField(clsMouse, fidMButtons);
mEnvironment->SetBooleanArrayRegion(mButtonsArray, 0, mButtoncount, diMouseState.rgbButtons);
jbooleanArray mButtonsArray = (jbooleanArray) env->GetStaticObjectField(clsMouse, fidMButtons);
env->SetBooleanArrayRegion(mButtonsArray, 0, mButtoncount, diMouseState.rgbButtons);
}
/**
* Caches the field ids for quicker access
*/
void CacheMouseFields() {
fidMButtons = mEnvironment->GetStaticFieldID(clsMouse, "buttons", "[Z");
fidMDX = mEnvironment->GetStaticFieldID(clsMouse, "dx", "I");
fidMDY = mEnvironment->GetStaticFieldID(clsMouse, "dy", "I");
fidMDWheel = mEnvironment->GetStaticFieldID(clsMouse, "dwheel", "I");
void CacheMouseFields(JNIEnv* env, jclass clsMouse) {
fidMButtons = env->GetStaticFieldID(clsMouse, "buttons", "[Z");
fidMDX = env->GetStaticFieldID(clsMouse, "dx", "I");
fidMDY = env->GetStaticFieldID(clsMouse, "dy", "I");
fidMDWheel = env->GetStaticFieldID(clsMouse, "dwheel", "I");
}