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tqt3/tools/qtconfig/colorbutton.cpp

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/**********************************************************************
** Copyright (C) 2000-2008 Trolltech ASA. All rights reserved.
**
** This file is part of TQt Configuration.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free TQt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** Licensees holding valid TQt Commercial licenses may use this file in
** accordance with the TQt Commercial License Agreement provided with
** the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#include "colorbutton.h"
#include <ntqapplication.h>
#include <ntqcolordialog.h>
#include <ntqpainter.h>
#include <ntqdragobject.h>
#include <ntqstyle.h>
ColorButton::ColorButton(TQWidget *parent, const char *name)
: TQButton(parent, name), mousepressed(FALSE)
{
setAcceptDrops(TRUE);
col = black;
connect(this, SIGNAL(clicked()), SLOT(changeColor()));
}
ColorButton::ColorButton(const TQColor &c, TQWidget *parent, const char *name)
: TQButton(parent, name)
{
setAcceptDrops(TRUE);
col = c;
connect(this, SIGNAL(clicked()), SLOT(changeColor()));
}
void ColorButton::setColor(const TQColor &c)
{
col = c;
update();
}
void ColorButton::changeColor()
{
TQColor c = TQColorDialog::getColor(col, qApp->activeWindow());
if (c.isValid()) {
setColor(c);
emit colorChanged(color());
}
}
TQSize ColorButton::sizeHint() const
{
return TQSize(40, 25);
}
TQSize ColorButton::minimumSizeHint() const
{
return TQSize(40, 25);
}
void ColorButton::drawButton(TQPainter *p)
{
style().drawPrimitive(TQStyle::PE_ButtonBevel, p, rect(), colorGroup(),
isDown() ? TQStyle::Style_Down : TQStyle::Style_Raised);
drawButtonLabel(p);
if (hasFocus())
style().drawPrimitive(TQStyle::PE_FocusRect, p,
style().subRect(TQStyle::SR_PushButtonFocusRect, this),
colorGroup(), TQStyle::Style_Default);
}
void ColorButton::drawButtonLabel(TQPainter *p)
{
TQColor pen = (isEnabled() ?
(hasFocus() ? palette().active().buttonText() :
palette().inactive().buttonText())
: palette().disabled().buttonText());
p->setPen( pen );
p->setBrush(col);
p->drawRect(width() / 4, height() / 4, width() / 2, height() / 2);
}
void ColorButton::dragEnterEvent(TQDragEnterEvent *e)
{
if (! TQColorDrag::canDecode(e)) {
e->ignore();
return;
}
}
void ColorButton::dragMoveEvent(TQDragMoveEvent *e)
{
if (! TQColorDrag::canDecode(e)) {
e->ignore();
return;
}
e->accept();
}
void ColorButton::dropEvent(TQDropEvent *e)
{
if (! TQColorDrag::canDecode(e)) {
e->ignore();
return;
}
TQColor c;
TQColorDrag::decode(e, c);
setColor(c);
emit colorChanged(color());
}
void ColorButton::mousePressEvent(TQMouseEvent *e)
{
presspos = e->pos();
mousepressed = TRUE;
TQButton::mousePressEvent(e);
}
void ColorButton::mouseReleaseEvent(TQMouseEvent *e)
{
mousepressed = FALSE;
TQButton::mouseReleaseEvent(e);
}
void ColorButton::mouseMoveEvent(TQMouseEvent *e)
{
if (! mousepressed)
return;
if ((presspos - e->pos()).manhattanLength() > TQApplication::startDragDistance()) {
mousepressed = FALSE;
setDown(FALSE);
TQColorDrag *cd = new TQColorDrag(color(), this);
cd->dragCopy();
}
}