/*****************************************************************************
* ctrl_image.cpp
*****************************************************************************
* Copyright (C) 2003 the VideoLAN team
*
* 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.
*****************************************************************************/
#include "ctrl_image.hpp"
#include "../commands/cmd_dialogs.hpp"
#include "../events/evt_generic.hpp"
#include "../src/os_factory.hpp"
#include "../src/os_graphics.hpp"
#include "../src/vlcproc.hpp"
#include "../src/scaled_bitmap.hpp"
#include "../src/art_manager.hpp"
#include "../utils/position.hpp"
CtrlImage::CtrlImage( intf_thread_t *pIntf, GenericBitmap &rBitmap,
CmdGeneric &rCommand, resize_t resizeMethod,
const UString &rHelp, VarBool *pVisible, bool art ):
CtrlFlat( pIntf, rHelp, pVisible ),
m_pBitmap( &rBitmap ), m_pOriginalBitmap( &rBitmap ),
m_rCommand( rCommand ), m_resizeMethod( resizeMethod ), m_art( art ),
m_x( 0 ), m_y( 0 )
{
if( m_art )
{
// art file if any will overwrite the original image
VlcProc *pVlcProc = VlcProc::instance( getIntf() );
ArtManager* pArtManager = ArtManager::instance( getIntf() );
// add observer
pVlcProc->getStreamArtVar().addObserver( this );
// retrieve initial state of art file
std::string str = pVlcProc->getStreamArtVar().get();
GenericBitmap* pArt = (GenericBitmap*) pArtManager->getArtBitmap( str );
if( pArt )
{
m_pBitmap = pArt;
msg_Dbg( getIntf(), "art file %s to be displayed (wxh = %ix%i)",
str.c_str(), m_pBitmap->getWidth(), m_pBitmap->getHeight() );
}
}
// Create the initial image
m_pImage = OSFactory::instance( getIntf() )->createOSGraphics(
m_pBitmap->getWidth(),
m_pBitmap->getHeight() );
m_pImage->drawBitmap( *m_pBitmap );
}
CtrlImage::~CtrlImage()
{
delete m_pImage;
if( m_art )
{
VlcProc *pVlcProc = VlcProc::instance( getIntf() );
pVlcProc->getStreamArtVar().delObserver( this );
}
}
void CtrlImage::handleEvent( EvtGeneric &rEvent )
{
// No FSM for this simple transition
if( rEvent.getAsString() == "mouse:right:up:none" )
{
CmdDlgShowPopupMenu( getIntf() ).execute();
}
else if( rEvent.getAsString() == "mouse:left:up:none" )
{
CmdDlgHidePopupMenu( getIntf() ).execute();
CmdDlgHideVideoPopupMenu( getIntf() ).execute();
CmdDlgHideAudioPopupMenu( getIntf() ).execute();
CmdDlgHideMiscPopupMenu( getIntf() ).execute();
}
else if( rEvent.getAsString() == "mouse:left:dblclick:none" )
{
m_rCommand.execute();
}
}
bool CtrlImage::mouseOver( int x, int y ) const
{
if( x >= 0 && x < getPosition()->getWidth() &&
y >= 0 && y < getPosition()->getHeight() )
{
// convert the coordinates to make them fit to the
// size of the original image if needed
switch( m_resizeMethod )
{
case kMosaic:
x %= m_pImage->getWidth();
y %= m_pImage->getHeight();
break;
case kScaleAndRatioPreserved:
x -= m_x;
y -= m_y;
break;
case kScale:
break;
}
return m_pImage->hit( x, y );
}
return false;
}
void CtrlImage::draw( OSGraphics &rImage, int xDest, int yDest, int w, int h )
{
const Position *pPos = getPosition();
if( !pPos )
return;
int width = pPos->getWidth();
int height = pPos->getHeight();
if( width <= 0 || height <= 0 )
return;
rect region( pPos->getLeft(), pPos->getTop(),
pPos->getWidth(), pPos->getHeight() );
rect clip( xDest, yDest, w, h );
rect inter;
if( !rect::intersect( region, clip, &inter ) )
return;
if( m_resizeMethod == kScale )
{
// Use scaling method
if( width != m_pImage->getWidth() ||
height != m_pImage->getHeight() )
{
OSFactory *pOsFactory = OSFactory::instance( getIntf() );
// Rescale the image with the actual size of the control
ScaledBitmap bmp( getIntf(), *m_pBitmap, width, height );
delete m_pImage;
m_pImage = pOsFactory->createOSGraphics( width, height );
m_pImage->drawBitmap( bmp, 0, 0 );
}
rImage.drawGraphics( *m_pImage,
inter.x - pPos->getLeft(),
inter.y - pPos->getTop(),
inter.x, inter.y,
inter.width, inter.height );
}
else if( m_resizeMethod == kMosaic )
{
int xDest0 = pPos->getLeft();
int yDest0 = pPos->getTop();
// Use mosaic method
while( width > 0 )
{
int curWidth = __MIN( width, m_pImage->getWidth() );
height = pPos->getHeight();
int curYDest = yDest0;
while( height > 0 )
{
int curHeight = __MIN( height, m_pImage->getHeight() );
rect region1( xDest0, curYDest, curWidth, curHeight );
rect inter1;
if( rect::intersect( region1, clip, &inter1 ) )
{
rImage.drawGraphics( *m_pImage,
inter1.x - region1.x,
inter1.y - region1.y,
inter1.x, inter1.y,
inter1.width, inter1.height );
}
curYDest += curHeight;
height -= m_pImage->getHeight();
}
xDest0 += curWidth;
width -= m_pImage->getWidth();
}
}
else if( m_resizeMethod == kScaleAndRatioPreserved )
{
int w0 = m_pBitmap->getWidth();
int h0 = m_pBitmap->getHeight();
int scaled_height = width * h0 / w0;
int scaled_width = height * w0 / h0;
// new image scaled with aspect ratio preserved
// and centered inside the control boundaries
if( scaled_height > height )
{
w = scaled_width;
h = height;
m_x = ( width - w ) / 2;
m_y = 0;
}
else
{
w = width;
h = scaled_height;
m_x = 0;
m_y = ( height - h ) / 2;
}
// rescale the image if size changed
if( w != m_pImage->getWidth() ||
h != m_pImage->getHeight() )
{
OSFactory *pOsFactory = OSFactory::instance( getIntf() );
ScaledBitmap bmp( getIntf(), *m_pBitmap, w, h );
delete m_pImage;
m_pImage = pOsFactory->createOSGraphics( w, h );
m_pImage->drawBitmap( bmp, 0, 0 );
}
// draw the scaled image at offset (m_x, m_y) from control origin
rect region1( pPos->getLeft() + m_x, pPos->getTop() + m_y, w, h );
rect inter1;
if( rect::intersect( region1, inter, &inter1 ) )
{
rImage.drawGraphics( *m_pImage,
inter1.x - pPos->getLeft() - m_x,
inter1.y - pPos->getTop() - m_y,
inter1.x, inter1.y,
inter1.width, inter1.height );
}
}
}
void CtrlImage::onUpdate( Subject<VarString> &rVariable, void* arg )
{
(void)arg;
VlcProc *pVlcProc = VlcProc::instance( getIntf() );
if( &rVariable == &pVlcProc->getStreamArtVar() )
{
std::string str = ((VarString&)rVariable).get();
ArtManager* pArtManager = ArtManager::instance( getIntf() );
GenericBitmap* pArt = (GenericBitmap*) pArtManager->getArtBitmap( str );
m_pBitmap = pArt ? pArt : m_pOriginalBitmap;
msg_Dbg( getIntf(), "art file %s to be displayed (wxh = %ix%i)",
str.c_str(),
m_pBitmap->getWidth(),
m_pBitmap->getHeight() );
delete m_pImage;
m_pImage = OSFactory::instance( getIntf() )->createOSGraphics(
m_pBitmap->getWidth(),
m_pBitmap->getHeight() );
m_pImage->drawBitmap( *m_pBitmap );
notifyLayout();
}
}
¤ Dauer der Verarbeitung: 0.1 Sekunden
(vorverarbeitet am 2026-11-04)
¤
*© Formatika GbR, Deutschland
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