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koffice/chalk/plugins/tools/selectiontools/kis_tool_select_eraser.cc

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4.6 KiB

/*
* kis_tool_select_brush.cc - part of Chalk
*
* Copyright (c) 2004 Boudewijn Rempt <boud@valdyas.org>
*
* 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 <tqevent.h>
#include <tqlabel.h>
#include <tqlayout.h>
#include <tqwidget.h>
#include <kdebug.h>
#include <kaction.h>
#include <kcommand.h>
#include <klocale.h>
#include "kis_brush.h"
#include "kis_layer.h"
#include "kis_paintop.h"
#include "kis_paintop_registry.h"
#include "kis_button_press_event.h"
#include "kis_button_release_event.h"
#include "kis_cmb_composite.h"
#include "kis_cursor.h"
#include "kis_doc.h"
#include "kis_move_event.h"
#include "kis_painter.h"
#include "kis_selection.h"
#include "kis_tool_select_eraser.h"
#include "kis_types.h"
#include "kis_view.h"
#include "kis_selection_options.h"
KisToolSelectEraser::KisToolSelectEraser()
: super(i18n("SelectEraser"))
{
setName("tool_select_eraser");
setCursor(KisCursor::load("tool_eraser_selection_cursor.png", 5, 5));
m_optWidget = 0;
m_paintOnSelection = true;
}
KisToolSelectEraser::~KisToolSelectEraser()
{
}
void KisToolSelectEraser::activate()
{
super::activate();
if (!m_optWidget)
return;
m_optWidget->slotActivated();
}
void KisToolSelectEraser::initPaint(KisEvent */*e*/)
{
if (!m_currentImage || !m_currentImage->activeDevice()) return;
m_mode = PAINT;
m_dragDist = 0;
// Create painter
KisPaintDeviceSP dev = m_currentImage->activeDevice();
if (dev == 0) return;
if (m_painter)
delete m_painter;
if(! dev->hasSelection())
{
dev->selection()->clear();
dev->emitSelectionChanged();
}
KisSelectionSP selection = dev->selection();
m_target = selection;
m_painter = new KisPainter(selection.data());
Q_CHECK_PTR(m_painter);
m_painter->beginTransaction(i18n("Selection Eraser"));
m_painter->setPaintColor(KisColor(TQt::white, selection->colorSpace()));
m_painter->setBrush(m_subject->currentBrush());
m_painter->setOpacity(OPACITY_OPAQUE);
m_painter->setCompositeOp(COMPOSITE_ERASE);
KisPaintOp * op = KisPaintOpRegistry::instance()->paintOp("eraser", 0, painter());
painter()->setPaintOp(op); // And now the painter owns the op and will destroy it.
// Set the cursor -- ideally. this should be a mask created from the brush,
// now that X11 can handle colored cursors.
#if 0
// Setting cursors has no effect until the tool is selected again; this
// should be fixed.
setCursor(KisCursor::eraserCursor());
#endif
}
void KisToolSelectEraser::endPaint() {
super::endPaint();
if (m_currentImage && m_currentImage->activeDevice())
m_currentImage->activeDevice()->emitSelectionChanged();
}
void KisToolSelectEraser::setup(KActionCollection *collection)
{
m_action = static_cast<KRadioAction *>(collection->action(name()));
if (m_action == 0) {
m_action = new KRadioAction(i18n("Selection &Eraser"),
"tool_eraser_selection", "Ctrl+Shift+E", this,
TQT_SLOT(activate()), collection,
name());
Q_CHECK_PTR(m_action);
m_action->setToolTip(i18n("Erase parts of a selection"));
m_action->setExclusiveGroup("tools");
m_ownAction = true;
}
}
TQWidget* KisToolSelectEraser::createOptionWidget(TQWidget* parent)
{
Q_UNUSED(parent);
// Commented out due to the fact that this doesn't actually work if you change the action
#if 0
m_optWidget = new KisSelectionOptions(parent, m_subject);
Q_CHECK_PTR(m_optWidget);
m_optWidget->setCaption(i18n("Selection Eraser"));
TQVBoxLayout * l = dynamic_cast<TQVBoxLayout*>(m_optWidget->tqlayout());
l->addItem(new TQSpacerItem(1, 1, TQSizePolicy::Fixed, TQSizePolicy::Expanding));
return m_optWidget;
#endif
return 0;
}
TQWidget* KisToolSelectEraser::optionWidget()
{
return m_optWidget;
}
#include "kis_tool_select_eraser.moc"