149 lines
4.7 KiB
C
149 lines
4.7 KiB
C
/*****************************************************************************
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* vlc_mouse.h: mouse related structures and functions
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*****************************************************************************
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* Copyright (C) 2009 Laurent Aimar
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* $Id: 481c3598e905db66805cf9a8ca58f6702921e4f0 $
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*
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* Authors: Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifndef _VLC_MOUSE_H
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#define _VLC_MOUSE_H 1
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/**
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* Mouse buttons
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*/
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enum
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{
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MOUSE_BUTTON_LEFT=0,
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MOUSE_BUTTON_CENTER,
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MOUSE_BUTTON_RIGHT,
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MOUSE_BUTTON_WHEEL_UP,
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MOUSE_BUTTON_WHEEL_DOWN,
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MOUSE_BUTTON_WHEEL_LEFT,
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MOUSE_BUTTON_WHEEL_RIGHT,
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MOUSE_BUTTON_MAX
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};
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/**
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* Mouse state
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*/
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typedef struct vlc_mouse_t
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{
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/* Coordinate */
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int i_x;
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int i_y;
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/* Mask of pressed button */
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int i_pressed;
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/* Is double clicked */
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bool b_double_click;
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} vlc_mouse_t;
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static inline void vlc_mouse_Init( vlc_mouse_t *p_mouse )
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{
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p_mouse->i_x = 0;
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p_mouse->i_y = 0;
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p_mouse->i_pressed = 0;
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p_mouse->b_double_click = false;
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}
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/* */
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static inline void vlc_mouse_SetPressed( vlc_mouse_t *p_mouse,
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int i_button )
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{
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p_mouse->i_pressed |= 1 << i_button;
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}
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static inline void vlc_mouse_SetReleased( vlc_mouse_t *p_mouse,
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int i_button )
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{
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p_mouse->i_pressed &= ~(1 << i_button);
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}
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static inline void vlc_mouse_SetPosition( vlc_mouse_t *p_mouse,
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int i_x, int i_y )
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{
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p_mouse->i_x = i_x;
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p_mouse->i_y = i_y;
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}
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/* */
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static inline bool vlc_mouse_IsPressed( const vlc_mouse_t *p_mouse,
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int i_button )
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{
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return ( p_mouse->i_pressed & (1 << i_button) ) != 0;
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}
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static inline bool vlc_mouse_IsLeftPressed( const vlc_mouse_t *p_mouse )
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{
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return vlc_mouse_IsPressed( p_mouse, MOUSE_BUTTON_LEFT );
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}
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static inline bool vlc_mouse_IsCenterPressed( const vlc_mouse_t *p_mouse )
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{
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return vlc_mouse_IsPressed( p_mouse, MOUSE_BUTTON_CENTER );
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}
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static inline bool vlc_mouse_IsRightPressed( const vlc_mouse_t *p_mouse )
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{
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return vlc_mouse_IsPressed( p_mouse, MOUSE_BUTTON_RIGHT );
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}
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static inline bool vlc_mouse_IsWheelUpPressed( const vlc_mouse_t *p_mouse )
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{
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return vlc_mouse_IsPressed( p_mouse, MOUSE_BUTTON_WHEEL_UP );
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}
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static inline bool vlc_mouse_IsWheelDownPressed( const vlc_mouse_t *p_mouse )
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{
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return vlc_mouse_IsPressed( p_mouse, MOUSE_BUTTON_WHEEL_DOWN );
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}
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static inline void vlc_mouse_GetMotion( int *pi_x, int *pi_y,
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const vlc_mouse_t *p_old,
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const vlc_mouse_t *p_new )
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{
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*pi_x = p_new->i_x - p_old->i_x;
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*pi_y = p_new->i_y - p_old->i_y;
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}
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/* */
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static inline bool vlc_mouse_HasChanged( const vlc_mouse_t *p_old,
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const vlc_mouse_t *p_new )
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{
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return p_old->i_x != p_new->i_x || p_old->i_y != p_new->i_y ||
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p_old->i_pressed != p_new->i_pressed;
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}
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static inline bool vlc_mouse_HasMoved( const vlc_mouse_t *p_old,
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const vlc_mouse_t *p_new )
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{
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return p_old->i_x != p_new->i_x || p_old->i_y != p_new->i_y;
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}
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static inline bool vlc_mouse_HasButton( const vlc_mouse_t *p_old,
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const vlc_mouse_t *p_new )
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{
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return p_old->i_pressed != p_new->i_pressed;
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}
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static inline bool vlc_mouse_HasPressed( const vlc_mouse_t *p_old,
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const vlc_mouse_t *p_new,
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int i_button )
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{
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const int i_mask = 1 << i_button;
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return (p_old->i_pressed & i_mask) == 0 && (p_new->i_pressed & i_mask);
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}
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static inline bool vlc_mouse_HasReleased( const vlc_mouse_t *p_old,
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const vlc_mouse_t *p_new,
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int i_button )
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{
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const int i_mask = 1 << i_button;
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return (p_old->i_pressed & i_mask) && (p_new->i_pressed & i_mask) == 0;
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}
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#endif /* _VLC_MOUSE_H */
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