/*
� � � � � � � � This file is part of the Opie Project
=. (C) 2002-2005 the Opie Team <opie-devel@handhelds.org>
.=l.
� � � � � �.>+-=
�_;:, � � .> � �:=|. This program is free software; you can
.> <`_, � > �. � <= redistribute it and/or modify it under
:`=1 )Y*s>-.-- � : the terms of the GNU Library General Public
.="- .-=="i, � � .._ License as published by the Free Software
�- . � .-<_> � � .<> Foundation; either version 2 of the License,
� � �._= =} � � � : or (at your option) any later version.
� � .%`+i> � � � _;_.
� � .i_,=:_. � � �-<s. 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
..}^=.= � � � = � � � ; Library General Public License for more
++= � -. � � .` � � .: details.
�: � � = �...= . :.=-
�-. � .:....=;==+<; You should have received a copy of the GNU
� -_. . . � )=. �= Library General Public License along with
� � -- � � � �:-=` this library; see the file COPYING.LIB.
If not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include "oledbox.h"
/* QT */
#include <qbitmap.h>
#include <qpainter.h>
namespace Opie {
namespace Ui {
/* XPM */
static const char * ledborder_xpm[] = {
"16 16 11 1",
" c None",
". c #626562",
"+ c #7B7D7B",
"@ c #949594",
"# c #ACAEAC",
"$ c #CDCACD",
"% c #CDCECD",
"; c #E6E6E6",
"> c #FFFFFF",
", c #E6E2E6",
"' c #FFFAFF",
" .++@@# ",
" ...++@@##$ ",
" .....+@##$$% ",
" ..... #$%%% ",
" ... %%; ",
".... ;;;;",
"++. ;>>",
"+++ >>>",
"@@@ >>>",
"@@# >>>",
"#### >>>>",
" #$$ >>> ",
" $$,,' >>>>> ",
" ,,,''>>>>>>> ",
" ,''>>>>>>> ",
" '>>>>> "};
QPixmap *OLedBox::s_border_pix = 0;
OLedBox::OLedBox ( const QColor &col, QWidget *parent, const char *name ) : QWidget ( parent, name )
{
m_color = col;
m_on = false;
m_readonly = true;
m_pix [ 0 ] = m_pix [ 1 ] = 0;
setBackgroundMode ( PaletteBackground );
if ( !s_border_pix )
s_border_pix = new QPixmap( ledborder_xpm );
}
OLedBox::~OLedBox ( )
{
delete m_pix [ 0 ];
delete m_pix [ 1 ];
}
QSize OLedBox::sizeHint ( ) const
{
return QSize ( 16, 16 );
}
bool OLedBox::isOn ( ) const
{
return m_on;
}
QColor OLedBox::color ( ) const
{
return m_color;
}
void OLedBox::setOn ( bool b )
{
if ( m_on != b ) {
m_on = b;
update ( );
}
}
void OLedBox::toggle ( )
{
setOn ( !isOn ( ) );
}
void OLedBox::setColor ( const QColor &col )
{
if ( m_color != col ) {
m_color = col;
delete m_pix [ 0 ];
delete m_pix [ 1 ];
m_pix[0] = m_pix[1] = 0;
update ( );
}
}
void OLedBox::mousePressEvent ( QMouseEvent *e )
{
if ( ! m_readonly &&
e-> button ( ) == LeftButton ) {
m_on = !m_on;
update ( );
emit toggled ( m_on );
}
}
void OLedBox::resizeEvent ( QResizeEvent * )
{
delete m_pix [ 0 ];
delete m_pix [ 1 ];
m_pix[0] = m_pix[1] = 0;
update ( );
}
void OLedBox::paintEvent ( QPaintEvent *e )
{
int ind = m_on ? 1 : 0;
if ( !m_pix [ ind ] ) {
m_pix [ ind ] = new QPixmap ( size ( ));
drawLed ( m_pix [ ind ], m_on ? m_color : m_color. dark ( 300 ) );
}
if ( !e-> erased ( ))
erase ( );
QPainter p ( this );
p. drawPixmap ( 0, 0, *m_pix [ ind ] );
}
void OLedBox::drawLed ( QPixmap *pix, const QColor &col )
{
QPainter paint;
QColor color;
QBrush brush;
QPen pen;
pix-> fill ( black );
// First of all we want to know what area should be updated
// Initialize coordinates, width, and height of the LED
int width = pix-> width ( );
// Make sure the LED is round!
if ( width > pix-> height ( ))
width = pix-> height ( );
width -= 2; // leave one pixel border
if ( width < 0 )
width = 0;
// maybe we could stop HERE, if width <=0 ?
// start painting widget
//
paint.begin( pix );
// Set the color of the LED according to given parameters
color = col;
// Set the brush to SolidPattern, this fills the entire area
// of the ellipse which is drawn first
brush.setStyle( QBrush::SolidPattern );
brush.setColor( color );
paint.setBrush( brush ); // Assign the brush to the painter
// Draws a "flat" LED with the given color:
paint.drawEllipse( 1, 1, width, width );
// Draw the bright light spot of the LED now, using modified "old"
// painter routine taken from KDEUIs KLed widget:
// Setting the new width of the pen is essential to avoid "pixelized"
// shadow like it can be observed with the old LED code
pen.setWidth( 2 );
// shrink the light on the LED to a size about 2/3 of the complete LED
int pos = width / 5 + 1;
int light_width = width;
light_width *= 2;
light_width /= 3;
// Calculate the LEDs "light factor":
int light_quote = ( 130 * 2 / ( light_width ? light_width : 1 ) ) + 100;
// Now draw the bright spot on the LED:
while ( light_width )
{
color = color.light( light_quote ); // make color lighter
pen.setColor( color ); // set color as pen color
paint.setPen( pen ); // select the pen for drawing
paint.drawEllipse( pos, pos, light_width, light_width ); // draw the ellipse (circle)
light_width--;
if ( !light_width )
break;
paint.drawEllipse( pos, pos, light_width, light_width );
light_width--;
if ( !light_width )
break;
paint.drawEllipse( pos, pos, light_width, light_width );
pos++;
light_width--;
}
// Drawing of bright spot finished, now draw a thin border
// around the LED which resembles a shadow with light coming
// from the upper left.
#ifndef QT_CAN_DRAW_ARCS
paint.drawPixmap ( 0, 0, *s_border_pix );
paint.end ( );
pix->setMask ( pix-> createHeuristicMask ( ));
#else
pen.setWidth( 3 );
brush.setStyle( QBrush::NoBrush ); // Switch off the brush
paint.setBrush( brush ); // This avoids filling of the ellipse
// Set the initial color value to 200 (bright) and start
// drawing the shadow border at 45 (45*16 = 720).
int shadow_color = 200, angle;
for ( angle = 720; angle < 6480; angle += 240 )
{
color.setRgb( shadow_color, shadow_color, shadow_color );
pen.setColor( color );
paint.setPen( pen );
paint.drawArc( 0, 0, width+2, width+2, angle, 240 );
paint.drawArc( 1, 1, width, width, angle, 240 );
paint.drawArc( 2, 2, width-2, width-2, angle, 240 );
if ( angle < 2320 ) {
shadow_color -= 25; // set color to a darker value
if ( shadow_color < 100 )
shadow_color = 100;
}
else if ( ( angle > 2320 ) && ( angle < 5760 ) ) {
shadow_color += 25; // set color to a brighter value
if ( shadow_color > 255 )
shadow_color = 255;
}
else {
shadow_color -= 25; // set color to a darker value again
if ( shadow_color < 100 )
shadow_color = 100;
} // end if ( angle < 2320 )
} // end for ( angle = 720; angle < 6480; angle += 160 )
paint.end();
//
// painting done
QBitmap mask ( pix-> width ( ), pix-> height ( ), true );
QPainter mp ( &mask );
mp. setPen ( Qt::NoPen );
mp. setBrush ( Qt::color1 );
mp. drawEllipse ( 0, 0, width + 2, width + 2 );
mp. end ( );
pix-> setMask ( mask );
#endif
}
};
};