kcolorbutton.cpp
/* This file is part of the KDE libraries
Copyright (C) 1997 Martin Jones (mjones@kde.org)
Copyright (C) 1999 Cristian Tibirna (ctibirna@kde.org)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <config.h>
#include <qpainter.h>
#include <qdrawutil.h>
#include <qapplication.h>
#include <qclipboard.h>
#include <qstyle.h>
#include <kglobalsettings.h>
#include <kstdaccel.h>
#include "kcolordialog.h"
#include "kcolorbutton.h"
#include "kcolordrag.h"
class KColorButton::KColorButtonPrivate
{
public:
bool m_bdefaultColor;
QColor m_defaultColor;
};
KColorButton::KColorButton( QWidget *parent, const char *name )
: QPushButton( parent, name )
{
d = new KColorButtonPrivate;
d->m_bdefaultColor = false;
d->m_defaultColor = QColor();
setAcceptDrops( true);
// 2000-10-15 (putzer): fixes broken keyboard usage
connect (this, SIGNAL(clicked()), this, SLOT(chooseColor()));
}
KColorButton::KColorButton( const QColor &c, QWidget *parent,
const char *name )
: QPushButton( parent, name ), col(c)
{
d = new KColorButtonPrivate;
d->m_bdefaultColor = false;
d->m_defaultColor = QColor();
setAcceptDrops( true);
// 2000-10-15 (putzer): fixes broken keyboard usage
connect (this, SIGNAL(clicked()), this, SLOT(chooseColor()));
}
KColorButton::KColorButton( const QColor &c, const QColor &defaultColor, QWidget *parent,
const char *name )
: QPushButton( parent, name ), col(c)
{
d = new KColorButtonPrivate;
d->m_bdefaultColor = true;
d->m_defaultColor = defaultColor;
setAcceptDrops( true);
// 2000-10-15 (putzer): fixes broken keyboard usage
connect (this, SIGNAL(clicked()), this, SLOT(chooseColor()));
}
KColorButton::~KColorButton()
{
delete d;
}
void KColorButton::setColor( const QColor &c )
{
if ( col != c ) {
col = c;
repaint( false );
emit changed( col );
}
}
QColor KColorButton::defaultColor() const
{
return d->m_defaultColor;
}
void KColorButton::setDefaultColor( const QColor &c )
{
d->m_bdefaultColor = c.isValid();
d->m_defaultColor = c;
}
void KColorButton::drawButtonLabel( QPainter *painter )
{
int x, y, w, h;
QRect r = style().subRect( QStyle::SR_PushButtonContents, this );
r.rect(&x, &y, &w, &h);
int margin = style().pixelMetric( QStyle::PM_ButtonMargin, this );
x += margin;
y += margin;
w -= 2*margin;
h -= 2*margin;
if (isOn() || isDown()) {
x += style().pixelMetric( QStyle::PM_ButtonShiftHorizontal, this );
y += style().pixelMetric( QStyle::PM_ButtonShiftVertical, this );
}
QColor fillCol = isEnabled() ? col : backgroundColor();
qDrawShadePanel( painter, x, y, w, h, colorGroup(), true, 1, NULL);
if ( fillCol.isValid() )
painter->fillRect( x+1, y+1, w-2, h-2, fillCol );
if ( hasFocus() ) {
QRect focusRect = style().subRect( QStyle::SR_PushButtonFocusRect, this );
style().drawPrimitive( QStyle::PE_FocusRect, painter, focusRect, colorGroup() );
}
}
QSize KColorButton::sizeHint() const
{
return style().sizeFromContents(QStyle::CT_PushButton, this, QSize(40, 15)).
expandedTo(QApplication::globalStrut());
}
void KColorButton::dragEnterEvent( QDragEnterEvent *event)
{
event->accept( KColorDrag::canDecode( event) && isEnabled());
}
void KColorButton::dropEvent( QDropEvent *event)
{
QColor c;
if( KColorDrag::decode( event, c)) {
setColor(c);
}
}
void KColorButton::keyPressEvent( QKeyEvent *e )
{
KKey key( e );
if ( KStdAccel::copy().contains( key ) ) {
QMimeSource* mime = new KColorDrag( color() );
QApplication::clipboard()->setData( mime, QClipboard::Clipboard );
}
else if ( KStdAccel::paste().contains( key ) ) {
QColor color;
KColorDrag::decode( QApplication::clipboard()->data( QClipboard::Clipboard ), color );
setColor( color );
}
else
QPushButton::keyPressEvent( e );
}
void KColorButton::mousePressEvent( QMouseEvent *e)
{
mPos = e->pos();
QPushButton::mousePressEvent(e);
}
void KColorButton::mouseMoveEvent( QMouseEvent *e)
{
if( (e->state() & LeftButton) &&
(e->pos()-mPos).manhattanLength() > KGlobalSettings::dndEventDelay() )
{
// Drag color object
KColorDrag *dg = new KColorDrag( color(), this);
dg->dragCopy();
setDown(false);
}
}
void KColorButton::chooseColor()
{
QColor c = color();
if ( d->m_bdefaultColor )
{
if( KColorDialog::getColor( c, d->m_defaultColor, this ) != QDialog::Rejected ) {
setColor( c );
}
}
else
{
if( KColorDialog::getColor( c, this ) != QDialog::Rejected ) {
setColor( c );
}
}
}
void KColorButton::virtual_hook( int, void* )
{ /*BASE::virtual_hook( id, data );*/ }
#include "kcolorbutton.moc"
KColorButton::changed
void changed(const QColor &newColor)
Emitted when the color of the widget is changed, either with setColor() or via user selection...
KStdAccel::paste
const KShortcut & paste()
KColorButton::setColor
void setColor(const QColor &c)
Sets the current color to c.
Definition: kcolorbutton.cpp:84
KColorButton::color
QColor color() const
Returns the currently chosen color.
Definition: kcolorbutton.h:62
KColorDrag
A drag-and-drop object for colors.
Definition: kcolordrag.h:36
KColorButton::KColorButton
KColorButton(QWidget *parent, const char *name=0L)
Creates a color button.
Definition: kcolorbutton.cpp:41
KStdAccel::key
int key(StdAccel) KDE_DEPRECATED
KColorButton::setDefaultColor
void setDefaultColor(const QColor &c)
Sets the default color to c.
Definition: kcolorbutton.cpp:98
KKey
KColorDialog::getColor
static int getColor(QColor &theColor, QWidget *parent=0L)
Creates a modal color dialog, let the user choose a color, and returns when the dialog is closed...
Definition: kcolordialog.cpp:1298
KColorDrag::canDecode
static bool canDecode(QMimeSource *e)
Returns true if the MIME source e contains a color object.
Definition: kcolordrag.cpp:76
KGlobalSettings::dndEventDelay
static int dndEventDelay()
KColorDrag::decode
static bool decode(QMimeSource *e, QColor &col)
Decodes the MIME source e and puts the resulting color into col.
Definition: kcolordrag.cpp:89
KColorButton::defaultColor
QColor defaultColor() const
Returns the default color or an invalid color if no default color is set.
KStdAccel::copy
const KShortcut & copy()

KDE Home | KDE Accessibility Home | Description of Access Keys