/*

SDL - Simple DirectMedia Layer

Copyright (C) 1997-2006 Sam Lantinga

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public

License along with this library; if not, write to the Free Software

Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

Sam Lantinga

slouken@libsdl.org

*/

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include "SDL_error.h"

#include "SDL_mouse.h"

#include "SDL_events_c.h"

#include "SDL_cursor_c.h"

#include "SDL_ph_mouse_c.h"

struct WMcursor

{

PhCursorDef_t *ph_cursor ;

};

void ph_FreeWMCursor(_THIS, WMcursor *cursor)

{

if (window != NULL)

{

SDL_Lock_EventThread();

if (PtSetResource(window, Pt_ARG_CURSOR_TYPE, Ph_CURSOR_INHERIT, 0) < 0)

{

/* TODO: output error msg */

}

SDL_Unlock_EventThread();

}

free(cursor);

}

WMcursor *ph_CreateWMCursor(_THIS, Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)

{

WMcursor* cursor;

int clen, i;

unsigned char bit, databit, maskbit;

/* Allocate and initialize the cursor memory */

if ((cursor = (WMcursor*)malloc(sizeof(WMcursor))) == NULL)

{

SDL_OutOfMemory();

return(NULL);

}

memset(cursor,0,sizeof(WMcursor));

cursor->ph_cursor = (PhCursorDef_t *) malloc(sizeof(PhCursorDef_t) + 32*4*2);

if (cursor->ph_cursor == NULL)

{

SDL_SetError("ph_CreateWMCursor(): cursor malloc failed !\n");

return NULL;

}

memset(cursor->ph_cursor,0,(sizeof(PhCursorDef_t) + 32*4*2));

cursor->ph_cursor->hdr.type =Ph_RDATA_CURSOR;

cursor->ph_cursor->size1.x = (short)w;

cursor->ph_cursor->size1.y = (short)h;

cursor->ph_cursor->offset1.x = (short)hot_x;

cursor->ph_cursor->offset1.y = (short)hot_y;

cursor->ph_cursor->bytesperline1 = (char)w/8;

cursor->ph_cursor->color1 = Pg_WHITE;

cursor->ph_cursor->size2.x = (short)w;

cursor->ph_cursor->size2.y = (short)h;

cursor->ph_cursor->offset2.x = (short)hot_x;

cursor->ph_cursor->offset2.y = (short)hot_y;

cursor->ph_cursor->bytesperline2 = (char)w/8;

cursor->ph_cursor->color2 = Pg_BLACK;

clen = (w/8)*h;

/* Copy the mask and the data to different bitmap planes */

for (i=0; i<clen; ++i)

{

for (bit = 0; bit < 8; bit++)

{

databit = data[i] & (1 << bit);

maskbit = mask[i] & (1 << bit);

cursor->ph_cursor->images[i] |= (databit == 0) ? maskbit : 0;

/* If the databit != 0, treat it as a black pixel and

* ignore the maskbit (can't do an inverted color) */

cursor->ph_cursor->images[i+clen] |= databit;

}

}

/* #bytes following the hdr struct */

cursor->ph_cursor->hdr.len =sizeof(PhCursorDef_t) + clen*2 - sizeof(PhRegionDataHdr_t);

return (cursor);

}

PhCursorDef_t ph_GetWMPhCursor(WMcursor *cursor)

{

return (*cursor->ph_cursor);

}

int ph_ShowWMCursor(_THIS, WMcursor* cursor)

{

PtArg_t args[3];

int nargs = 0;

/* Don't do anything if the display is gone */

if (window == NULL)

{

return (0);

}

/* looks like photon can't draw mouse cursor in direct mode */

if ((this->screen->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN)

{

/* disable the fake mouse in the fullscreen OpenGL mode */

if ((this->screen->flags & SDL_OPENGL) == SDL_OPENGL)

{

cursor=NULL;

}

else

{

return (0);

}

}

/* Set the photon cursor, or blank if cursor is NULL */

if (cursor!=NULL)

{

PtSetArg(&args[0], Pt_ARG_CURSOR_TYPE, Ph_CURSOR_BITMAP, 0);

/* Could set next to any PgColor_t value */

PtSetArg(&args[1], Pt_ARG_CURSOR_COLOR, Ph_CURSOR_DEFAULT_COLOR , 0);

PtSetArg(&args[2], Pt_ARG_BITMAP_CURSOR, cursor->ph_cursor, (cursor->ph_cursor->hdr.len + sizeof(PhRegionDataHdr_t)));

nargs = 3;

}

else /* Ph_CURSOR_NONE */

{

PtSetArg(&args[0], Pt_ARG_CURSOR_TYPE, Ph_CURSOR_NONE, 0);

nargs = 1;

}

SDL_Lock_EventThread();

if (PtSetResources(window, nargs, args) < 0 )

{

return (0);

}

SDL_Unlock_EventThread();

return (1);

}

void ph_WarpWMCursor(_THIS, Uint16 x, Uint16 y)

{

short abs_x, abs_y;

SDL_Lock_EventThread();

PtGetAbsPosition( window, &abs_x, &abs_y );

PhMoveCursorAbs( PhInputGroup(NULL), x + abs_x, y + abs_y );

SDL_Unlock_EventThread();

}

void ph_CheckMouseMode(_THIS)

{

/* If the mouse is hidden and input is grabbed, we use relative mode */

if ( !(SDL_cursorstate & CURSOR_VISIBLE) && (this->input_grab != SDL_GRAB_OFF))

{

mouse_relative = 1;

}

else

{

mouse_relative = 0;

}

}

void ph_UpdateMouse(_THIS)

{

PhCursorInfo_t phcursor;

short abs_x;

short abs_y;

/* Lock the event thread, in multi-threading environments */

SDL_Lock_EventThread();

/* synchronizing photon mouse cursor position and SDL mouse position, if cursor appears over window. */

PtGetAbsPosition(window, &abs_x, &abs_y);

PhQueryCursor(PhInputGroup(NULL), &phcursor);

if (((phcursor.pos.x >= abs_x) && (phcursor.pos.x <= abs_x + this->screen->w)) &&

((phcursor.pos.y >= abs_y) && (phcursor.pos.y <= abs_y + this->screen->h)))

{

SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS);

SDL_PrivateMouseMotion(0, 0, phcursor.pos.x-abs_x, phcursor.pos.y-abs_y);

}

else

{

SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS);

}

/* Unlock the event thread, in multi-threading environments */

SDL_Unlock_EventThread();

}