269 lines
7.0 KiB
C
269 lines
7.0 KiB
C
/*
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* X events handling functions
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*
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* Copyright 1993 Alexandre Julliard
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*/
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static char Copyright[] = "Copyright Alexandre Julliard, 1993";
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#include <X11/Intrinsic.h>
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#include <X11/StringDefs.h>
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#include <X11/Core.h>
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#include "windows.h"
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#include "win.h"
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#define NB_BUTTONS 3 /* Windows can handle 3 buttons */
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#define DBLCLICK_TIME 300 /* Max. time for a double click (milliseconds) */
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/* Event handlers */
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static void EVENT_expose();
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static void EVENT_key();
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static void EVENT_mouse_motion();
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static void EVENT_mouse_button();
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static void EVENT_structure();
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/* State variables */
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static HWND captureWnd = 0;
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/***********************************************************************
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* EVENT_AddHandlers
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*
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* Add the event handlers to the given window
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*/
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void EVENT_AddHandlers( Widget w, int hwnd )
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{
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XtAddEventHandler(w, ExposureMask, FALSE,
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EVENT_expose, (XtPointer)hwnd );
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XtAddEventHandler(w, KeyPressMask | KeyReleaseMask, FALSE,
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EVENT_key, (XtPointer)hwnd );
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XtAddEventHandler(w, PointerMotionMask, FALSE,
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EVENT_mouse_motion, (XtPointer)hwnd );
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XtAddEventHandler(w, ButtonPressMask | ButtonReleaseMask, FALSE,
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EVENT_mouse_button, (XtPointer)hwnd );
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XtAddEventHandler(w, StructureNotifyMask, FALSE,
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EVENT_structure, (XtPointer)hwnd );
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}
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/***********************************************************************
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* EVENT_RemoveHandlers
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*
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* Remove the event handlers of the given window
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*/
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void EVENT_RemoveHandlers( Widget w, int hwnd )
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{
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XtRemoveEventHandler(w, ExposureMask, FALSE,
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EVENT_expose, (XtPointer)hwnd );
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XtRemoveEventHandler(w, KeyPressMask | KeyReleaseMask, FALSE,
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EVENT_key, (XtPointer)hwnd );
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XtRemoveEventHandler(w, PointerMotionMask, FALSE,
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EVENT_mouse_motion, (XtPointer)hwnd );
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XtRemoveEventHandler(w, ButtonPressMask | ButtonReleaseMask, FALSE,
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EVENT_mouse_button, (XtPointer)hwnd );
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XtRemoveEventHandler(w, StructureNotifyMask, FALSE,
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EVENT_structure, (XtPointer)hwnd );
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}
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/***********************************************************************
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* EVENT_XStateToKeyState
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*
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* Translate a X event state (Button1Mask, ShiftMask, etc...) to
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* a Windows key state (MK_SHIFT, MK_CONTROL, etc...)
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*/
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static WORD EVENT_XStateToKeyState( int state )
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{
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int kstate = 0;
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if (state & Button1Mask) kstate |= MK_LBUTTON;
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if (state & Button2Mask) kstate |= MK_MBUTTON;
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if (state & Button3Mask) kstate |= MK_RBUTTON;
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if (state & ShiftMask) kstate |= MK_SHIFT;
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if (state & ControlMask) kstate |= MK_CONTROL;
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return kstate;
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}
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/***********************************************************************
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* EVENT_expose
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*
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* Handle a X expose event
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*/
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static void EVENT_expose( Widget w, int hwnd, XExposeEvent *event,
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Boolean *cont_dispatch )
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{
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RECT rect;
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rect.left = event->x;
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rect.top = event->y;
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rect.right = event->x + event->width;
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rect.bottom = event->y + event->height;
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InvalidateRect( hwnd, &rect, TRUE );
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}
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/***********************************************************************
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* EVENT_key
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*
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* Handle a X key event
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*/
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static void EVENT_key( Widget w, int hwnd, XKeyEvent *event,
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Boolean *cont_dispatch )
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{
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MSG msg;
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msg.hwnd = hwnd;
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msg.message = (event->type == KeyRelease) ? WM_KEYUP : WM_KEYDOWN;
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msg.wParam = 0;
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msg.lParam = (event->x & 0xffff) | (event->y << 16);
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msg.time = event->time;
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msg.pt.x = event->x & 0xffff;
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msg.pt.y = event->y & 0xffff;
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MSG_AddMsg( &msg );
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}
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/***********************************************************************
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* EVENT_mouse_motion
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*
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* Handle a X mouse motion event
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*/
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static void EVENT_mouse_motion( Widget w, int hwnd, XMotionEvent *event,
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Boolean *cont_dispatch )
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{
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MSG msg;
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msg.hwnd = hwnd;
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msg.message = WM_MOUSEMOVE;
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msg.wParam = EVENT_XStateToKeyState( event->state );
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msg.lParam = (event->x & 0xffff) | (event->y << 16);
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msg.time = event->time;
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msg.pt.x = event->x & 0xffff;
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msg.pt.y = event->y & 0xffff;
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MSG_AddMsg( &msg );
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}
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/***********************************************************************
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* EVENT_mouse_button
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*
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* Handle a X mouse button event
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*/
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static void EVENT_mouse_button( Widget w, int hwnd, XButtonEvent *event,
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Boolean *cont_dispatch )
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{
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static WORD messages[3][NB_BUTTONS] =
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{
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{ WM_LBUTTONDOWN, WM_MBUTTONDOWN, WM_RBUTTONDOWN },
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{ WM_LBUTTONUP, WM_MBUTTONUP, WM_RBUTTONUP },
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{ WM_LBUTTONDBLCLK, WM_MBUTTONDBLCLK, WM_RBUTTONDBLCLK }
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};
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static unsigned long lastClickTime[NB_BUTTONS] = { 0, 0, 0 };
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MSG msg;
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int buttonNum, prevTime, type;
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buttonNum = event->button-1;
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if (buttonNum >= NB_BUTTONS) return;
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if (event->type == ButtonRelease) type = 1;
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else
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{ /* Check if double-click */
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prevTime = lastClickTime[buttonNum];
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lastClickTime[buttonNum] = event->time;
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type = (event->time - prevTime < DBLCLICK_TIME) ? 2 : 0;
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}
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msg.hwnd = hwnd;
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msg.message = messages[type][buttonNum];
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msg.wParam = EVENT_XStateToKeyState( event->state );
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msg.lParam = (event->x & 0xffff) | (event->y << 16);
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msg.time = event->time;
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msg.pt.x = event->x & 0xffff;
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msg.pt.y = event->y & 0xffff;
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MSG_AddMsg( &msg );
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}
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/***********************************************************************
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* EVENT_structure
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*
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* Handle a X StructureNotify event
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*/
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static void EVENT_structure( Widget w, int hwnd, XEvent *event,
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Boolean *cont_dispatch )
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{
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MSG msg;
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msg.hwnd = hwnd;
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msg.time = GetTickCount();
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msg.pt.x = 0;
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msg.pt.y = 0;
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switch(event->type)
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{
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case ConfigureNotify:
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{
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XConfigureEvent * evt = (XConfigureEvent *)event;
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WND * wndPtr = WIN_FindWndPtr( hwnd );
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if (!wndPtr) return;
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wndPtr->rectClient.right = wndPtr->rectClient.left + evt->width;
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wndPtr->rectClient.bottom = wndPtr->rectClient.top + evt->height;
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PostMessage( hwnd, WM_SIZE, SIZE_RESTORED,
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(evt->width & 0xffff) | (evt->height << 16) );
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}
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break;
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}
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}
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/**********************************************************************
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* SetCapture (USER.18)
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*/
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HWND SetCapture(HWND wnd)
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{
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int rv;
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HWND old_capture_wnd = captureWnd;
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WND *wnd_p = WIN_FindWndPtr(wnd);
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if (wnd_p == NULL)
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return 0;
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rv = XtGrabPointer(wnd_p->winWidget, False,
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ButtonPressMask | ButtonReleaseMask | ButtonMotionMask,
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GrabModeAsync, GrabModeSync, None, None, CurrentTime);
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GlobalUnlock(wnd);
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if (rv == GrabSuccess)
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{
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captureWnd = wnd;
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return old_capture_wnd;
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}
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else
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return 0;
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}
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/**********************************************************************
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* ReleaseCapture (USER.19)
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*/
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void ReleaseCapture()
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{
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WND *wnd_p;
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if (captureWnd == 0)
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return;
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wnd_p = WIN_FindWndPtr(captureWnd);
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if (wnd_p == NULL)
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return;
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XtUngrabPointer(wnd_p->winWidget, CurrentTime);
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GlobalUnlock(captureWnd);
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captureWnd = 0;
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}
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