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/*
This file is part of the Opie Project
Copyright (C) Robert Griebl <sandman@handhelds.org>
=. Copyright (C) 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 "ocolorpopupmenu.h"
#include "ocolorbutton.h"
/* OPIE */
/* QT */
#include <qimage.h>
using namespace Opie;
struct OColorButtonPrivate
{
QPopupMenu *m_menu;
QColor m_color;
};
/**
* This concstructs a Color Button with @param color as the start color
* It'll use a OColorPopupMenu internally
*
* @param parent The parent of the Color Button
* @param color The color from where to start on
* @param name @see QObject
*/
OColorButton::OColorButton ( QWidget *parent, const QColor &color, const char *name )
: QPushButton ( parent, name )
{
d = new OColorButtonPrivate;
d-> m_menu = new OColorPopupMenu ( color, 0, 0 );
setPopup ( d-> m_menu );
// setPopupDelay ( 0 );
connect ( d-> m_menu, SIGNAL( colorSelected(const QColor&)), this, SLOT( updateColor(const QColor&)));
QSize s = sizeHint ( ) + QSize ( 12, 0 );
setMinimumSize ( s );
setMaximumSize ( s. width ( ) * 2, s. height ( ));
d->m_color = color;
}
/**
* This destructs the object
*/
OColorButton::~OColorButton ( )
{
delete d->m_menu;
delete d;
}
/**
* @return Returns the current color of the button
*/
QColor OColorButton::color ( ) const
{
return d-> m_color;
}
/**
* This method sets the color of the button
* @param c The color to be set.
*/
void OColorButton::setColor ( const QColor &c )
{
updateColor ( c, true );
}
/**
* @internal
*/
void OColorButton::updateColor ( const QColor &c )
{
updateColor( c, true );
}
void OColorButton::updateColor ( const QColor &c, bool sendSignal )
{
d-> m_color = c;
QImage img ( width()-14, height()-6, 32 );
img. fill ( 0 );
int r, g, b;
c. rgb ( &r, &g, &b );
int w = img. width ( );
int h = img. height ( );
int dx = w * 20 / 100; // 15%
int dy = h * 20 / 100;
for ( int y = 0; y < h; y++ )
{
for ( int x = 0; x < w; x++ )
{
double alpha = 1.0;
if ( x < dx )
alpha *= ( double ( x + 1 ) / dx );
else if ( x >= w - dx )
alpha *= ( double ( w - x ) / dx );
if ( y < dy )
alpha *= ( double ( y + 1 ) / dy );
else if ( y >= h - dy )
alpha *= ( double ( h - y ) / dy );
int a = int ( alpha * 255.0 );
if ( a < 0 )
a = 0;
if ( a > 255 )
a = 255;
img. setPixel ( x, y, qRgba ( r, g, b, a ));
}
}
img. setAlphaBuffer ( true );
QPixmap pix;
pix. convertFromImage ( img );
setPixmap ( pix );
if ( sendSignal )
emit colorSelected ( c );
}
/**
* @internal
*/
void OColorButton::resizeEvent( QResizeEvent *ev ) {
QPushButton::resizeEvent( ev );
updateColor( d->m_color, false );
}
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