1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2003 VideoLAN
7 * Authors: Cyril Deguet <asmax@via.ecp.fr>
8 * Olivier Teulière <ipkiss@via.ecp.fr>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
25 #include "tooltip.hpp"
26 #include "generic_bitmap.hpp"
27 #include "generic_font.hpp"
28 #include "os_factory.hpp"
29 #include "os_graphics.hpp"
30 #include "os_tooltip.hpp"
31 #include "os_timer.hpp"
32 #include "var_manager.hpp"
33 #include "../utils/ustring.hpp"
36 Tooltip::Tooltip( intf_thread_t *pIntf, const GenericFont &rFont, int delay ):
37 SkinObject( pIntf ), m_rFont( rFont ), m_delay( delay ), m_pImage( NULL ),
38 m_xPos( -1 ), m_yPos( -1 )
40 OSFactory *pOsFactory = OSFactory::instance( pIntf );
41 m_pTimer = pOsFactory->createOSTimer( Callback( this, &doShow ) );
42 m_pOsTooltip = pOsFactory->createOSTooltip();
44 // Observe the tooltip text variable
45 VarManager::instance( pIntf )->getTooltipText().addObserver( this );
51 VarManager::instance( getIntf() )->getTooltipText().delObserver( this );
52 SKINS_DELETE( m_pTimer );
53 SKINS_DELETE( m_pOsTooltip );
63 // (Re)start the timer
64 m_pTimer->start( m_delay, true );
77 void Tooltip::onUpdate( Subject<VarText> &rVariable )
79 // Redisplay the tooltip
80 displayText( ((VarText&)rVariable).get() );
84 void Tooltip::displayText( const UString &rText )
89 // Redraw the window if it is already visible
92 m_pOsTooltip->show( m_xPos, m_yPos, *m_pImage );
97 void Tooltip::makeImage( const UString &rText )
99 // Render the text on a bitmap
100 GenericBitmap *pBmpTip = m_rFont.drawString( rText, 0 );
105 int w = pBmpTip->getWidth() + 10;
106 int h = m_rFont.getSize() + 8;
108 // Create the image of the tooltip
113 m_pImage = OSFactory::instance( getIntf() )->createOSGraphics( w, h );
114 m_pImage->fillRect( 0, 0, w, h, 0xffffd0 );
115 m_pImage->drawRect( 0, 0, w, h, 0x000000 );
116 m_pImage->drawBitmap( *pBmpTip, 0, 0, 5, 5, -1, -1, true );
122 void Tooltip::doShow( SkinObject *pObj )
124 Tooltip *pThis = (Tooltip*)pObj;
126 if( pThis->m_pImage )
128 if( pThis->m_xPos == -1 )
130 // Get the mouse coordinates and the image size
131 OSFactory *pOsFactory = OSFactory::instance( pThis->getIntf() );
133 pOsFactory->getMousePos( x, y );
134 int scrWidth = pOsFactory->getScreenWidth();
135 int scrHeight = pOsFactory->getScreenHeight();
136 int w = pThis->m_pImage->getWidth();
137 int h = pThis->m_pImage->getHeight();
139 // Compute the position of the tooltip
142 if( x + w > scrWidth )
143 x -= (x + w - scrWidth);
146 if( y + h > scrHeight )
153 // Show the tooltip window
154 pThis->m_pOsTooltip->show( pThis->m_xPos, pThis->m_yPos,
155 *(pThis->m_pImage) );