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