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/*
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* kis_tool_select_freehand.h - part of Krayon^WChalk
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*
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* Copyright (c) 2000 John Califf <jcaliff@compuzone.net>
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* Copyright (c) 2002 Patrick Julien <freak@codepimps.org>
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* Copyright (c) 2004 Boudewijn Rempt <boud@valdyas.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <tqapplication.h>
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#include <tqpainter.h>
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#include <tqregion.h>
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#include <tqwidget.h>
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#include <tqlayout.h>
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#include <tdeaction.h>
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#include <kdebug.h>
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#include <kcommand.h>
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#include <tdelocale.h>
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#include <kis_layer.h>
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#include <kis_selection_options.h>
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#include <kis_canvas_controller.h>
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#include <kis_canvas_subject.h>
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#include <kis_cursor.h>
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#include <kis_image.h>
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#include <kis_tool_select_outline.h>
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#include <kis_vec.h>
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#include <kis_undo_adapter.h>
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#include <kis_button_press_event.h>
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#include <kis_button_release_event.h>
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#include <kis_move_event.h>
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#include "kis_selected_transaction.h"
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#include "kis_painter.h"
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#include "kis_paintop_registry.h"
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#include "kis_canvas.h"
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#include "kis_canvas_painter.h"
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KisToolSelectOutline::KisToolSelectOutline()
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: super(i18n("Select Outline"))
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{
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setName("tool_select_outline");
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setCursor(KisCursor::load("tool_outline_selection_cursor.png", 5, 5));
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m_subject = 0;
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m_dragging = false;
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m_optWidget = 0;
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m_selectAction = SELECTION_ADD;
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}
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KisToolSelectOutline::~KisToolSelectOutline()
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{
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}
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void KisToolSelectOutline::activate()
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{
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super::activate();
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if (!m_optWidget)
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return;
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m_optWidget->slotActivated();
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}
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void KisToolSelectOutline::update (KisCanvasSubject *subject)
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{
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m_subject = subject;
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super::update(m_subject);
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}
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void KisToolSelectOutline::buttonPress(KisButtonPressEvent *event)
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{
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if (event->button() == Qt::LeftButton) {
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m_dragging = true;
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m_dragStart = event->pos();
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m_dragEnd = event->pos();
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m_points.clear();
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m_points.append(m_dragStart);
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}
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}
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void KisToolSelectOutline::move(KisMoveEvent *event)
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{
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if (m_dragging) {
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m_dragStart = m_dragEnd;
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m_dragEnd = event->pos();
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m_points.append (m_dragEnd);
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// draw new lines on canvas
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draw();
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}
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}
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void KisToolSelectOutline::buttonRelease(KisButtonReleaseEvent *event)
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{
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if (!m_subject)
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return;
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if (m_dragging && event->button() == Qt::LeftButton) {
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m_dragging = false;
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deactivate();
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KisImageSP img = m_subject->currentImg();
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if (img && img->activeDevice()) {
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TQApplication::setOverrideCursor(KisCursor::waitCursor());
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KisPaintDeviceSP dev = img->activeDevice();
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bool hasSelection = dev->hasSelection();
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KisSelectedTransaction *t = 0;
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if (img->undo()) t = new KisSelectedTransaction(i18n("Outline Selection"), dev);
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KisSelectionSP selection = dev->selection();
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if (!hasSelection) {
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selection->clear();
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}
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KisPainter painter(selection.data());
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painter.setPaintColor(KisColor(TQt::black, selection->colorSpace()));
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painter.setFillStyle(KisPainter::FillStyleForegroundColor);
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painter.setStrokeStyle(KisPainter::StrokeStyleNone);
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painter.setBrush(m_subject->currentBrush());
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painter.setOpacity(OPACITY_OPAQUE);
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KisPaintOp * op = KisPaintOpRegistry::instance()->paintOp("paintbrush", 0, &painter);
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painter.setPaintOp(op); // And now the painter owns the op and will destroy it.
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switch (m_selectAction) {
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case SELECTION_ADD:
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painter.setCompositeOp(COMPOSITE_OVER);
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break;
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case SELECTION_SUBTRACT:
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painter.setCompositeOp(COMPOSITE_SUBTRACT);
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break;
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default:
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break;
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}
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painter.paintPolygon(m_points);
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if(hasSelection) {
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TQRect dirty(painter.dirtyRect());
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dev->setDirty(dirty);
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dev->emitSelectionChanged(dirty);
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} else {
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dev->setDirty();
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dev->emitSelectionChanged();
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}
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if (img->undo())
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img->undoAdapter()->addCommand(t);
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TQApplication::restoreOverrideCursor();
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}
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m_points.clear();
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}
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}
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void KisToolSelectOutline::paint(KisCanvasPainter& gc)
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{
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draw(gc);
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}
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void KisToolSelectOutline::paint(KisCanvasPainter& gc, const TQRect&)
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{
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draw(gc);
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}
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void KisToolSelectOutline::draw()
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{
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if (m_subject) {
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KisCanvasController *controller = m_subject->canvasController();
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KisCanvas *canvas = controller->kiscanvas();
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KisCanvasPainter gc(canvas);
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draw(gc);
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}
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}
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void KisToolSelectOutline::draw(KisCanvasPainter& gc)
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{
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if (!m_subject)
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return;
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if (m_dragging && !m_points.empty()) {
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TQPen pen(TQt::white, 0, TQt::DotLine);
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gc.setPen(pen);
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gc.setRasterOp(TQt::XorROP);
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KisCanvasController *controller = m_subject->canvasController();
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KisPoint start, end;
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TQPoint startPos;
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TQPoint endPos;
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startPos = controller->windowToView(m_dragStart.floorTQPoint());
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endPos = controller->windowToView(m_dragEnd.floorTQPoint());
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gc.drawLine(startPos, endPos);
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}
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}
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void KisToolSelectOutline::deactivate()
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{
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if (m_subject) {
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KisCanvasController *controller = m_subject->canvasController();
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KisCanvas *canvas = controller->kiscanvas();
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KisCanvasPainter gc(canvas);
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TQPen pen(TQt::white, 0, TQt::DotLine);
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gc.setPen(pen);
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gc.setRasterOp(TQt::XorROP);
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KisPoint start, end;
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TQPoint startPos;
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TQPoint endPos;
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for (KisPointVector::iterator it = m_points.begin(); it != m_points.end(); ++it) {
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if (it == m_points.begin())
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{
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start = (*it);
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} else {
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end = (*it);
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startPos = controller->windowToView(start.floorTQPoint());
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endPos = controller->windowToView(end.floorTQPoint());
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gc.drawLine(startPos, endPos);
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start = end;
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}
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}
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}
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}
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void KisToolSelectOutline::setup(TDEActionCollection *collection)
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{
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m_action = static_cast<TDERadioAction *>(collection->action(name()));
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if (m_action == 0) {
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m_action = new TDERadioAction(i18n("&Outline Selection"),
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"tool_outline_selection",
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0,
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this,
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TQT_SLOT(activate()),
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collection,
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name());
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TQ_CHECK_PTR(m_action);
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m_action->setExclusiveGroup("tools");
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m_action->setToolTip(i18n("Select an outline"));
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m_ownAction = true;
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}
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}
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TQWidget* KisToolSelectOutline::createOptionWidget(TQWidget* parent)
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{
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m_optWidget = new KisSelectionOptions(parent, m_subject);
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TQ_CHECK_PTR(m_optWidget);
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m_optWidget->setCaption(i18n("Outline Selection"));
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connect (m_optWidget, TQT_SIGNAL(actionChanged(int)), this, TQT_SLOT(slotSetAction(int)));
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TQVBoxLayout * l = dynamic_cast<TQVBoxLayout*>(m_optWidget->layout());
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l->addItem(new TQSpacerItem(1, 1, TQSizePolicy::Fixed, TQSizePolicy::Expanding));
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return m_optWidget;
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}
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TQWidget* KisToolSelectOutline::optionWidget()
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{
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return m_optWidget;
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}
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void KisToolSelectOutline::slotSetAction(int action) {
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if (action >= SELECTION_ADD && action <= SELECTION_SUBTRACT)
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m_selectAction =(enumSelectionMode)action;
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}
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#include "kis_tool_select_outline.moc"
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