You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

122 lines
4.6 KiB

/*****************************************************************************
* ctrl_checkbox.hpp
*****************************************************************************
* Copyright (C) 2003 the VideoLAN team
* $Id$
*
* Authors: Cyril Deguet <asmax@via.ecp.fr>
* Olivier Teulière <ipkiss@via.ecp.fr>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifndef CTRL_CHECKBOX_HPP
#define CTRL_CHECKBOX_HPP
#include "ctrl_generic.hpp"
#include "../utils/fsm.hpp"
#include "../utils/observer.hpp"
#include "../src/anim_bitmap.hpp"
class GenericBitmap;
class OSGraphics;
class CmdGeneric;
/// Base class for checkbox controls
class CtrlCheckbox: public CtrlGeneric, public Observer<AnimBitmap, void*>
{
public:
/// Create a checkbox with 6 images
CtrlCheckbox( intf_thread_t *pIntf,
const GenericBitmap &rBmpUp1,
const GenericBitmap &rBmpOver1,
const GenericBitmap &rBmpDown1,
const GenericBitmap &rBmpUp2,
const GenericBitmap &rBmpOver2,
const GenericBitmap &rBmpDown2,
CmdGeneric &rCommand1, CmdGeneric &rCommand2,
const UString &rTooltip1, const UString &rTooltip2,
VarBool &rVariable, const UString &rHelp,
VarBool *pVisible);
virtual ~CtrlCheckbox();
/// Handle an event
virtual void handleEvent( EvtGeneric &rEvent );
/// Check whether coordinates are inside the control
virtual bool mouseOver( int x, int y ) const;
/// Draw the control on the given graphics
virtual void draw( OSGraphics &rImage, int xDest, int yDest );
/// Get the text of the tooltip XXX
virtual UString getTooltipText() const { return *m_pTooltip; }
/// Get the type of control (custom RTTI)
virtual string getType() const { return "checkbox"; }
private:
/// Finite state machine of the control
FSM m_fsm;
/// Observed variable
VarBool &m_rVariable;
/// Commands for the 2 states
CmdGeneric &m_rCommand1, &m_rCommand2;
/// Current command
CmdGeneric *m_pCommand;
/// Tooltip texts for the 2 states
const UString m_tooltip1, m_tooltip2;
/// Current tooltip
const UString *m_pTooltip;
/// Images of the checkbox in the different states
AnimBitmap m_imgUp1, m_imgOver1, m_imgDown1;
AnimBitmap m_imgUp2, m_imgOver2, m_imgDown2;
/// Current set of images (pointing to 1 or 2)
/// In fact, we consider here that a checkbox acts like 2 buttons, in a
/// symetric way; this is a small trick to avoid multiplicating the
/// callbacks (and it could be extended easily to support 3 buttons or
/// more...)
AnimBitmap *m_pImgUp, *m_pImgOver, *m_pImgDown;
/// Current image
AnimBitmap *m_pImgCurrent;
/// Callback objects
DEFINE_CALLBACK( CtrlCheckbox, UpOverDownOver )
DEFINE_CALLBACK( CtrlCheckbox, DownOverUpOver )
DEFINE_CALLBACK( CtrlCheckbox, DownOverDown )
DEFINE_CALLBACK( CtrlCheckbox, DownDownOver )
DEFINE_CALLBACK( CtrlCheckbox, UpOverUp )
DEFINE_CALLBACK( CtrlCheckbox, UpUpOver )
DEFINE_CALLBACK( CtrlCheckbox, DownUp )
DEFINE_CALLBACK( CtrlCheckbox, UpHidden )
DEFINE_CALLBACK( CtrlCheckbox, HiddenUp )
/// Method called when the observed variable is modified
virtual void onVarBoolUpdate( VarBool &rVariable );
/// Method called when an animated bitmap changes
virtual void onUpdate( Subject<AnimBitmap, void*> &rBitmap, void* );
/// Change the current image
void setImage( AnimBitmap *pImg );
/// Helper function to update the current state of images
void changeButton();
};
#endif