io_mouse.c

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/* console mode mouse functions */

#include "../fb.h"
#include "fb_private_console.h"

static int inited = -1;
static int last_x = 0, last_y = 0, last_z = 0, last_buttons = 0;

static void ProcessMouseEvent(const MOUSE_EVENT_RECORD *pEvent)
{
        if( pEvent->dwEventFlags == MOUSE_WHEELED ) {
                last_z += ( ( pEvent->dwButtonState & 0xFF000000 ) ? -1 : 1 );
        } else {
                last_x = pEvent->dwMousePosition.X;
                last_y = pEvent->dwMousePosition.Y;
                last_buttons = pEvent->dwButtonState & 0x7;
        }
}

int fb_ConsoleGetMouse( int *x, int *y, int *z, int *buttons, int *clip )
{
#if 0
        INPUT_RECORD ir;
        DWORD dwRead;
#endif

        DWORD dwMode;

        if( inited == -1 ) {
                inited = GetSystemMetrics( SM_CMOUSEBUTTONS );
                if( inited ) {
                        GetConsoleMode( __fb_in_handle, &dwMode );
                        dwMode |= ENABLE_MOUSE_INPUT;
                        SetConsoleMode( __fb_in_handle, dwMode );
#if 1
                        __fb_con.mouseEventHook = ProcessMouseEvent;
#endif
                        last_x = last_y = 1;
                        fb_hConvertToConsole( &last_x, &last_y, NULL, NULL );
                }
        }

        if( inited == 0 ) {
                *x = *y = *z = *buttons = -1;
                return fb_ErrorSetNum( FB_RTERROR_ILLEGALFUNCTIONCALL );
        }

        if( inited > 0) {
                GetConsoleMode( __fb_in_handle, &dwMode );
                if( !(dwMode & ENABLE_MOUSE_INPUT) )
                {
                        dwMode |= ENABLE_MOUSE_INPUT;
                        SetConsoleMode( __fb_in_handle, dwMode );
                }
        }

#if 0
        if( PeekConsoleInput( __fb_in_handle, &ir, 1, &dwRead ) ) {
                if( dwRead > 0 ) {
                        ReadConsoleInput( __fb_in_handle, &ir, 1, &dwRead );
                        if( ir.EventType == MOUSE_EVENT ) {
                                ProcessMouseEvent( &ir.Event.MouseEvent );
                        }
                }
        }
#else
        fb_ConsoleProcessEvents( );
#endif

        *x = last_x - 1;
        *y = last_y - 1;
        *z = last_z;
        *buttons = last_buttons;
        *clip = 0;

        fb_hConvertFromConsole( x, y, NULL, NULL );

        return FB_RTERROR_OK;
}

int fb_ConsoleSetMouse( int x, int y, int cursor, int clip )
{
        return fb_ErrorSetNum( FB_RTERROR_ILLEGALFUNCTIONCALL );
}