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246 lines
7.0 KiB
246 lines
7.0 KiB
/*
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* kis_tool_star.cc -- part of Chalk
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*
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* Copyright (c) 2004 Michael Thaler <michael.thaler@physik.tu-muenchen.de>
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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 <math.h>
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#include <tqpainter.h>
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#include <tqspinbox.h>
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#include <tqlayout.h>
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#include <kaction.h>
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#include <kdebug.h>
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#include <klocale.h>
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#include <kdebug.h>
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#include <knuminput.h>
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#include "kis_doc.h"
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#include "kis_view.h"
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#include "kis_painter.h"
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#include "kis_int_spinbox.h"
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#include "kis_canvas_subject.h"
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#include "kis_canvas_controller.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_paintop_registry.h"
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#include "kis_canvas.h"
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#include "kis_canvas_painter.h"
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#include "kis_cursor.h"
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#include "kis_int_spinbox.h"
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#include "kis_tool_star.h"
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#include "wdg_tool_star.h"
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KisToolStar::KisToolStar()
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: super(i18n("Star")),
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m_dragging (false),
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m_currentImage (0)
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{
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setName("tool_star");
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setCursor(KisCursor::load("tool_star_cursor.png", 6, 6));
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m_innerOuterRatio=40;
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m_vertices=5;
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}
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KisToolStar::~KisToolStar()
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{
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}
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void KisToolStar::update (KisCanvasSubject *subject)
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{
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super::update (subject);
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if (m_subject)
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m_currentImage = m_subject->currentImg ();
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}
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void KisToolStar::buttonPress(KisButtonPressEvent *event)
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{
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if (m_currentImage && 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_vertices = m_optWidget->verticesSpinBox->value();
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m_innerOuterRatio = m_optWidget->ratioSpinBox->value();
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}
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}
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void KisToolStar::move(KisMoveEvent *event)
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{
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if (m_dragging) {
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// erase old lines on canvas
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draw(m_dragStart, m_dragEnd);
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// move (alt) or resize star
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if (event->state() & TQt::AltButton) {
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KisPoint trans = event->pos() - m_dragEnd;
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m_dragStart += trans;
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m_dragEnd += trans;
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} else {
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m_dragEnd = event->pos();
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}
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// draw new lines on canvas
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draw(m_dragStart, m_dragEnd);
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}
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}
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void KisToolStar::buttonRelease(KisButtonReleaseEvent *event)
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{
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if (!m_subject || !m_currentImage)
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return;
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if (m_dragging && event->button() == Qt::LeftButton) {
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// erase old lines on canvas
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draw(m_dragStart, m_dragEnd);
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m_dragging = false;
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if (m_dragStart == m_dragEnd)
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return;
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if (!m_currentImage)
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return;
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if (!m_currentImage->activeDevice())
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return;
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KisPaintDeviceSP device = m_currentImage->activeDevice ();;
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KisPainter painter (device);
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if (m_currentImage->undo()) painter.beginTransaction (i18n("Star"));
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painter.setPaintColor(m_subject->fgColor());
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painter.setBackgroundColor(m_subject->bgColor());
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painter.setFillStyle(fillStyle());
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painter.setBrush(m_subject->currentBrush());
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painter.setPattern(m_subject->currentPattern());
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painter.setOpacity(m_opacity);
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painter.setCompositeOp(m_compositeOp);
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KisPaintOp * op = KisPaintOpRegistry::instance()->paintOp(m_subject->currentPaintop(), m_subject->currentPaintopSettings(), &painter);
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painter.setPaintOp(op); // Painter takes ownership
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vKisPoint coord = starCoordinates(m_vertices, m_dragStart.x(), m_dragStart.y(), m_dragEnd.x(), m_dragEnd.y());
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painter.paintPolygon(coord);
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device->setDirty( painter.dirtyRect() );
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notifyModified();
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if (m_currentImage->undo()) {
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m_currentImage->undoAdapter()->addCommand(painter.endTransaction());
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}
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}
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}
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void KisToolStar::draw(const KisPoint& start, const KisPoint& end )
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{
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if (!m_subject || !m_currentImage)
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return;
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KisCanvasController *controller = m_subject->canvasController();
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KisCanvas *canvas = controller->kiscanvas();
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KisCanvasPainter p (canvas);
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TQPen pen(TQt::SolidLine);
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KisPoint startPos;
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KisPoint endPos;
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startPos = controller->windowToView(start);
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endPos = controller->windowToView(end);
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p.setRasterOp(TQt::NotROP);
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vKisPoint points = starCoordinates(m_vertices, startPos.x(), startPos.y(), endPos.x(), endPos.y());
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for (uint i = 0; i < points.count() - 1; i++) {
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p.drawLine(points[i].floorTQPoint(), points[i + 1].floorTQPoint());
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}
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p.drawLine(points[points.count() - 1].floorTQPoint(), points[0].floorTQPoint());
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p.end ();
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}
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void KisToolStar::setup(KActionCollection *collection)
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{
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m_action = static_cast<KRadioAction *>(collection->action(name()));
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if (m_action == 0) {
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KShortcut shortcut(TQt::Key_Plus);
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shortcut.append(KShortcut(TQt::Key_F9));
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m_action = new KRadioAction(i18n("&Star"),
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"tool_star",
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shortcut,
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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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Q_CHECK_PTR(m_action);
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m_action->setToolTip(i18n("Draw a star"));
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m_action->setExclusiveGroup("tools");
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m_ownAction = true;
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}
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}
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vKisPoint KisToolStar::starCoordinates(int N, double mx, double my, double x, double y)
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{
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double R=0, r=0;
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TQ_INT32 n=0;
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double angle;
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vKisPoint starCoordinatesArray(2*N);
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// the radius of the outer edges
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R=sqrt((x-mx)*(x-mx)+(y-my)*(y-my));
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// the radius of the inner edges
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r=R*m_innerOuterRatio/100.0;
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// the angle
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angle=-atan2((x-mx),(y-my));
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//set outer edges
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for(n=0;n<N;n++){
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starCoordinatesArray[2*n] = KisPoint(mx+R*cos(n * 2.0 * M_PI / N + angle),my+R*sin(n *2.0 * M_PI / N+angle));
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}
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//set inner edges
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for(n=0;n<N;n++){
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starCoordinatesArray[2*n+1] = KisPoint(mx+r*cos((n + 0.5) * 2.0 * M_PI / N + angle),my+r*sin((n +0.5) * 2.0 * M_PI / N + angle));
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}
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return starCoordinatesArray;
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}
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TQWidget* KisToolStar::createOptionWidget(TQWidget* parent)
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{
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TQWidget *widget = super::createOptionWidget(parent);
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m_optWidget = new WdgToolStar(widget);
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Q_CHECK_PTR(m_optWidget);
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m_optWidget->ratioSpinBox->setValue(m_innerOuterRatio);
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TQGridLayout *optionLayout = new TQGridLayout(widget, 1, 1);
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super::addOptionWidgetLayout(optionLayout);
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optionLayout->addWidget(m_optWidget, 0, 0);
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return widget;
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}
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#include "kis_tool_star.moc"
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